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-rw-r--r--vendor/golang.org/x/net/webdav/file.go796
-rw-r--r--vendor/golang.org/x/net/webdav/file_go1.6.go17
-rw-r--r--vendor/golang.org/x/net/webdav/file_go1.7.go16
-rw-r--r--vendor/golang.org/x/net/webdav/if.go173
-rw-r--r--vendor/golang.org/x/net/webdav/internal/xml/README11
-rw-r--r--vendor/golang.org/x/net/webdav/internal/xml/marshal.go1223
-rw-r--r--vendor/golang.org/x/net/webdav/internal/xml/read.go692
-rw-r--r--vendor/golang.org/x/net/webdav/internal/xml/typeinfo.go371
-rw-r--r--vendor/golang.org/x/net/webdav/internal/xml/xml.go1998
-rw-r--r--vendor/golang.org/x/net/webdav/litmus_test_server.go94
-rw-r--r--vendor/golang.org/x/net/webdav/lock.go445
-rw-r--r--vendor/golang.org/x/net/webdav/prop.go470
-rw-r--r--vendor/golang.org/x/net/webdav/webdav.go702
-rw-r--r--vendor/golang.org/x/net/webdav/xml.go519
14 files changed, 0 insertions, 7527 deletions
diff --git a/vendor/golang.org/x/net/webdav/file.go b/vendor/golang.org/x/net/webdav/file.go
deleted file mode 100644
index 748118d..0000000
--- a/vendor/golang.org/x/net/webdav/file.go
+++ /dev/null
@@ -1,796 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package webdav
-
-import (
- "encoding/xml"
- "io"
- "net/http"
- "os"
- "path"
- "path/filepath"
- "strings"
- "sync"
- "time"
-
- "golang.org/x/net/context"
-)
-
-// slashClean is equivalent to but slightly more efficient than
-// path.Clean("/" + name).
-func slashClean(name string) string {
- if name == "" || name[0] != '/' {
- name = "/" + name
- }
- return path.Clean(name)
-}
-
-// A FileSystem implements access to a collection of named files. The elements
-// in a file path are separated by slash ('/', U+002F) characters, regardless
-// of host operating system convention.
-//
-// Each method has the same semantics as the os package's function of the same
-// name.
-//
-// Note that the os.Rename documentation says that "OS-specific restrictions
-// might apply". In particular, whether or not renaming a file or directory
-// overwriting another existing file or directory is an error is OS-dependent.
-type FileSystem interface {
- Mkdir(ctx context.Context, name string, perm os.FileMode) error
- OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (File, error)
- RemoveAll(ctx context.Context, name string) error
- Rename(ctx context.Context, oldName, newName string) error
- Stat(ctx context.Context, name string) (os.FileInfo, error)
-}
-
-// A File is returned by a FileSystem's OpenFile method and can be served by a
-// Handler.
-//
-// A File may optionally implement the DeadPropsHolder interface, if it can
-// load and save dead properties.
-type File interface {
- http.File
- io.Writer
-}
-
-// A Dir implements FileSystem using the native file system restricted to a
-// specific directory tree.
-//
-// While the FileSystem.OpenFile method takes '/'-separated paths, a Dir's
-// string value is a filename on the native file system, not a URL, so it is
-// separated by filepath.Separator, which isn't necessarily '/'.
-//
-// An empty Dir is treated as ".".
-type Dir string
-
-func (d Dir) resolve(name string) string {
- // This implementation is based on Dir.Open's code in the standard net/http package.
- if filepath.Separator != '/' && strings.IndexRune(name, filepath.Separator) >= 0 ||
- strings.Contains(name, "\x00") {
- return ""
- }
- dir := string(d)
- if dir == "" {
- dir = "."
- }
- return filepath.Join(dir, filepath.FromSlash(slashClean(name)))
-}
-
-func (d Dir) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
- if name = d.resolve(name); name == "" {
- return os.ErrNotExist
- }
- return os.Mkdir(name, perm)
-}
-
-func (d Dir) OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (File, error) {
- if name = d.resolve(name); name == "" {
- return nil, os.ErrNotExist
- }
- f, err := os.OpenFile(name, flag, perm)
- if err != nil {
- return nil, err
- }
- return f, nil
-}
-
-func (d Dir) RemoveAll(ctx context.Context, name string) error {
- if name = d.resolve(name); name == "" {
- return os.ErrNotExist
- }
- if name == filepath.Clean(string(d)) {
- // Prohibit removing the virtual root directory.
- return os.ErrInvalid
- }
- return os.RemoveAll(name)
-}
-
-func (d Dir) Rename(ctx context.Context, oldName, newName string) error {
- if oldName = d.resolve(oldName); oldName == "" {
- return os.ErrNotExist
- }
- if newName = d.resolve(newName); newName == "" {
- return os.ErrNotExist
- }
- if root := filepath.Clean(string(d)); root == oldName || root == newName {
- // Prohibit renaming from or to the virtual root directory.
- return os.ErrInvalid
- }
- return os.Rename(oldName, newName)
-}
-
-func (d Dir) Stat(ctx context.Context, name string) (os.FileInfo, error) {
- if name = d.resolve(name); name == "" {
- return nil, os.ErrNotExist
- }
- return os.Stat(name)
-}
-
-// NewMemFS returns a new in-memory FileSystem implementation.
-func NewMemFS() FileSystem {
- return &memFS{
- root: memFSNode{
- children: make(map[string]*memFSNode),
- mode: 0660 | os.ModeDir,
- modTime: time.Now(),
- },
- }
-}
-
-// A memFS implements FileSystem, storing all metadata and actual file data
-// in-memory. No limits on filesystem size are used, so it is not recommended
-// this be used where the clients are untrusted.
-//
-// Concurrent access is permitted. The tree structure is protected by a mutex,
-// and each node's contents and metadata are protected by a per-node mutex.
-//
-// TODO: Enforce file permissions.
-type memFS struct {
- mu sync.Mutex
- root memFSNode
-}
-
-// TODO: clean up and rationalize the walk/find code.
-
-// walk walks the directory tree for the fullname, calling f at each step. If f
-// returns an error, the walk will be aborted and return that same error.
-//
-// dir is the directory at that step, frag is the name fragment, and final is
-// whether it is the final step. For example, walking "/foo/bar/x" will result
-// in 3 calls to f:
-// - "/", "foo", false
-// - "/foo/", "bar", false
-// - "/foo/bar/", "x", true
-// The frag argument will be empty only if dir is the root node and the walk
-// ends at that root node.
-func (fs *memFS) walk(op, fullname string, f func(dir *memFSNode, frag string, final bool) error) error {
- original := fullname
- fullname = slashClean(fullname)
-
- // Strip any leading "/"s to make fullname a relative path, as the walk
- // starts at fs.root.
- if fullname[0] == '/' {
- fullname = fullname[1:]
- }
- dir := &fs.root
-
- for {
- frag, remaining := fullname, ""
- i := strings.IndexRune(fullname, '/')
- final := i < 0
- if !final {
- frag, remaining = fullname[:i], fullname[i+1:]
- }
- if frag == "" && dir != &fs.root {
- panic("webdav: empty path fragment for a clean path")
- }
- if err := f(dir, frag, final); err != nil {
- return &os.PathError{
- Op: op,
- Path: original,
- Err: err,
- }
- }
- if final {
- break
- }
- child := dir.children[frag]
- if child == nil {
- return &os.PathError{
- Op: op,
- Path: original,
- Err: os.ErrNotExist,
- }
- }
- if !child.mode.IsDir() {
- return &os.PathError{
- Op: op,
- Path: original,
- Err: os.ErrInvalid,
- }
- }
- dir, fullname = child, remaining
- }
- return nil
-}
-
-// find returns the parent of the named node and the relative name fragment
-// from the parent to the child. For example, if finding "/foo/bar/baz" then
-// parent will be the node for "/foo/bar" and frag will be "baz".
-//
-// If the fullname names the root node, then parent, frag and err will be zero.
-//
-// find returns an error if the parent does not already exist or the parent
-// isn't a directory, but it will not return an error per se if the child does
-// not already exist. The error returned is either nil or an *os.PathError
-// whose Op is op.
-func (fs *memFS) find(op, fullname string) (parent *memFSNode, frag string, err error) {
- err = fs.walk(op, fullname, func(parent0 *memFSNode, frag0 string, final bool) error {
- if !final {
- return nil
- }
- if frag0 != "" {
- parent, frag = parent0, frag0
- }
- return nil
- })
- return parent, frag, err
-}
-
-func (fs *memFS) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
- fs.mu.Lock()
- defer fs.mu.Unlock()
-
- dir, frag, err := fs.find("mkdir", name)
- if err != nil {
- return err
- }
- if dir == nil {
- // We can't create the root.
- return os.ErrInvalid
- }
- if _, ok := dir.children[frag]; ok {
- return os.ErrExist
- }
- dir.children[frag] = &memFSNode{
- children: make(map[string]*memFSNode),
- mode: perm.Perm() | os.ModeDir,
- modTime: time.Now(),
- }
- return nil
-}
-
-func (fs *memFS) OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (File, error) {
- fs.mu.Lock()
- defer fs.mu.Unlock()
-
- dir, frag, err := fs.find("open", name)
- if err != nil {
- return nil, err
- }
- var n *memFSNode
- if dir == nil {
- // We're opening the root.
- if flag&(os.O_WRONLY|os.O_RDWR) != 0 {
- return nil, os.ErrPermission
- }
- n, frag = &fs.root, "/"
-
- } else {
- n = dir.children[frag]
- if flag&(os.O_SYNC|os.O_APPEND) != 0 {
- // memFile doesn't support these flags yet.
- return nil, os.ErrInvalid
- }
- if flag&os.O_CREATE != 0 {
- if flag&os.O_EXCL != 0 && n != nil {
- return nil, os.ErrExist
- }
- if n == nil {
- n = &memFSNode{
- mode: perm.Perm(),
- }
- dir.children[frag] = n
- }
- }
- if n == nil {
- return nil, os.ErrNotExist
- }
- if flag&(os.O_WRONLY|os.O_RDWR) != 0 && flag&os.O_TRUNC != 0 {
- n.mu.Lock()
- n.data = nil
- n.mu.Unlock()
- }
- }
-
- children := make([]os.FileInfo, 0, len(n.children))
- for cName, c := range n.children {
- children = append(children, c.stat(cName))
- }
- return &memFile{
- n: n,
- nameSnapshot: frag,
- childrenSnapshot: children,
- }, nil
-}
-
-func (fs *memFS) RemoveAll(ctx context.Context, name string) error {
- fs.mu.Lock()
- defer fs.mu.Unlock()
-
- dir, frag, err := fs.find("remove", name)
- if err != nil {
- return err
- }
- if dir == nil {
- // We can't remove the root.
- return os.ErrInvalid
- }
- delete(dir.children, frag)
- return nil
-}
-
-func (fs *memFS) Rename(ctx context.Context, oldName, newName string) error {
- fs.mu.Lock()
- defer fs.mu.Unlock()
-
- oldName = slashClean(oldName)
- newName = slashClean(newName)
- if oldName == newName {
- return nil
- }
- if strings.HasPrefix(newName, oldName+"/") {
- // We can't rename oldName to be a sub-directory of itself.
- return os.ErrInvalid
- }
-
- oDir, oFrag, err := fs.find("rename", oldName)
- if err != nil {
- return err
- }
- if oDir == nil {
- // We can't rename from the root.
- return os.ErrInvalid
- }
-
- nDir, nFrag, err := fs.find("rename", newName)
- if err != nil {
- return err
- }
- if nDir == nil {
- // We can't rename to the root.
- return os.ErrInvalid
- }
-
- oNode, ok := oDir.children[oFrag]
- if !ok {
- return os.ErrNotExist
- }
- if oNode.children != nil {
- if nNode, ok := nDir.children[nFrag]; ok {
- if nNode.children == nil {
- return errNotADirectory
- }
- if len(nNode.children) != 0 {
- return errDirectoryNotEmpty
- }
- }
- }
- delete(oDir.children, oFrag)
- nDir.children[nFrag] = oNode
- return nil
-}
-
-func (fs *memFS) Stat(ctx context.Context, name string) (os.FileInfo, error) {
- fs.mu.Lock()
- defer fs.mu.Unlock()
-
- dir, frag, err := fs.find("stat", name)
- if err != nil {
- return nil, err
- }
- if dir == nil {
- // We're stat'ting the root.
- return fs.root.stat("/"), nil
- }
- if n, ok := dir.children[frag]; ok {
- return n.stat(path.Base(name)), nil
- }
- return nil, os.ErrNotExist
-}
-
-// A memFSNode represents a single entry in the in-memory filesystem and also
-// implements os.FileInfo.
-type memFSNode struct {
- // children is protected by memFS.mu.
- children map[string]*memFSNode
-
- mu sync.Mutex
- data []byte
- mode os.FileMode
- modTime time.Time
- deadProps map[xml.Name]Property
-}
-
-func (n *memFSNode) stat(name string) *memFileInfo {
- n.mu.Lock()
- defer n.mu.Unlock()
- return &memFileInfo{
- name: name,
- size: int64(len(n.data)),
- mode: n.mode,
- modTime: n.modTime,
- }
-}
-
-func (n *memFSNode) DeadProps() (map[xml.Name]Property, error) {
- n.mu.Lock()
- defer n.mu.Unlock()
- if len(n.deadProps) == 0 {
- return nil, nil
- }
- ret := make(map[xml.Name]Property, len(n.deadProps))
- for k, v := range n.deadProps {
- ret[k] = v
- }
- return ret, nil
-}
-
-func (n *memFSNode) Patch(patches []Proppatch) ([]Propstat, error) {
- n.mu.Lock()
- defer n.mu.Unlock()
- pstat := Propstat{Status: http.StatusOK}
- for _, patch := range patches {
- for _, p := range patch.Props {
- pstat.Props = append(pstat.Props, Property{XMLName: p.XMLName})
- if patch.Remove {
- delete(n.deadProps, p.XMLName)
- continue
- }
- if n.deadProps == nil {
- n.deadProps = map[xml.Name]Property{}
- }
- n.deadProps[p.XMLName] = p
- }
- }
- return []Propstat{pstat}, nil
-}
-
-type memFileInfo struct {
- name string
- size int64
- mode os.FileMode
- modTime time.Time
-}
-
-func (f *memFileInfo) Name() string { return f.name }
-func (f *memFileInfo) Size() int64 { return f.size }
-func (f *memFileInfo) Mode() os.FileMode { return f.mode }
-func (f *memFileInfo) ModTime() time.Time { return f.modTime }
-func (f *memFileInfo) IsDir() bool { return f.mode.IsDir() }
-func (f *memFileInfo) Sys() interface{} { return nil }
-
-// A memFile is a File implementation for a memFSNode. It is a per-file (not
-// per-node) read/write position, and a snapshot of the memFS' tree structure
-// (a node's name and children) for that node.
-type memFile struct {
- n *memFSNode
- nameSnapshot string
- childrenSnapshot []os.FileInfo
- // pos is protected by n.mu.
- pos int
-}
-
-// A *memFile implements the optional DeadPropsHolder interface.
-var _ DeadPropsHolder = (*memFile)(nil)
-
-func (f *memFile) DeadProps() (map[xml.Name]Property, error) { return f.n.DeadProps() }
-func (f *memFile) Patch(patches []Proppatch) ([]Propstat, error) { return f.n.Patch(patches) }
-
-func (f *memFile) Close() error {
- return nil
-}
-
-func (f *memFile) Read(p []byte) (int, error) {
- f.n.mu.Lock()
- defer f.n.mu.Unlock()
- if f.n.mode.IsDir() {
- return 0, os.ErrInvalid
- }
- if f.pos >= len(f.n.data) {
- return 0, io.EOF
- }
- n := copy(p, f.n.data[f.pos:])
- f.pos += n
- return n, nil
-}
-
-func (f *memFile) Readdir(count int) ([]os.FileInfo, error) {
- f.n.mu.Lock()
- defer f.n.mu.Unlock()
- if !f.n.mode.IsDir() {
- return nil, os.ErrInvalid
- }
- old := f.pos
- if old >= len(f.childrenSnapshot) {
- // The os.File Readdir docs say that at the end of a directory,
- // the error is io.EOF if count > 0 and nil if count <= 0.
- if count > 0 {
- return nil, io.EOF
- }
- return nil, nil
- }
- if count > 0 {
- f.pos += count
- if f.pos > len(f.childrenSnapshot) {
- f.pos = len(f.childrenSnapshot)
- }
- } else {
- f.pos = len(f.childrenSnapshot)
- old = 0
- }
- return f.childrenSnapshot[old:f.pos], nil
-}
-
-func (f *memFile) Seek(offset int64, whence int) (int64, error) {
- f.n.mu.Lock()
- defer f.n.mu.Unlock()
- npos := f.pos
- // TODO: How to handle offsets greater than the size of system int?
- switch whence {
- case os.SEEK_SET:
- npos = int(offset)
- case os.SEEK_CUR:
- npos += int(offset)
- case os.SEEK_END:
- npos = len(f.n.data) + int(offset)
- default:
- npos = -1
- }
- if npos < 0 {
- return 0, os.ErrInvalid
- }
- f.pos = npos
- return int64(f.pos), nil
-}
-
-func (f *memFile) Stat() (os.FileInfo, error) {
- return f.n.stat(f.nameSnapshot), nil
-}
-
-func (f *memFile) Write(p []byte) (int, error) {
- lenp := len(p)
- f.n.mu.Lock()
- defer f.n.mu.Unlock()
-
- if f.n.mode.IsDir() {
- return 0, os.ErrInvalid
- }
- if f.pos < len(f.n.data) {
- n := copy(f.n.data[f.pos:], p)
- f.pos += n
- p = p[n:]
- } else if f.pos > len(f.n.data) {
- // Write permits the creation of holes, if we've seek'ed past the
- // existing end of file.
- if f.pos <= cap(f.n.data) {
- oldLen := len(f.n.data)
- f.n.data = f.n.data[:f.pos]
- hole := f.n.data[oldLen:]
- for i := range hole {
- hole[i] = 0
- }
- } else {
- d := make([]byte, f.pos, f.pos+len(p))
- copy(d, f.n.data)
- f.n.data = d
- }
- }
-
- if len(p) > 0 {
- // We should only get here if f.pos == len(f.n.data).
- f.n.data = append(f.n.data, p...)
- f.pos = len(f.n.data)
- }
- f.n.modTime = time.Now()
- return lenp, nil
-}
-
-// moveFiles moves files and/or directories from src to dst.
-//
-// See section 9.9.4 for when various HTTP status codes apply.
-func moveFiles(ctx context.Context, fs FileSystem, src, dst string, overwrite bool) (status int, err error) {
- created := false
- if _, err := fs.Stat(ctx, dst); err != nil {
- if !os.IsNotExist(err) {
- return http.StatusForbidden, err
- }
- created = true
- } else if overwrite {
- // Section 9.9.3 says that "If a resource exists at the destination
- // and the Overwrite header is "T", then prior to performing the move,
- // the server must perform a DELETE with "Depth: infinity" on the
- // destination resource.
- if err := fs.RemoveAll(ctx, dst); err != nil {
- return http.StatusForbidden, err
- }
- } else {
- return http.StatusPreconditionFailed, os.ErrExist
- }
- if err := fs.Rename(ctx, src, dst); err != nil {
- return http.StatusForbidden, err
- }
- if created {
- return http.StatusCreated, nil
- }
- return http.StatusNoContent, nil
-}
-
-func copyProps(dst, src File) error {
- d, ok := dst.(DeadPropsHolder)
- if !ok {
- return nil
- }
- s, ok := src.(DeadPropsHolder)
- if !ok {
- return nil
- }
- m, err := s.DeadProps()
- if err != nil {
- return err
- }
- props := make([]Property, 0, len(m))
- for _, prop := range m {
- props = append(props, prop)
- }
- _, err = d.Patch([]Proppatch{{Props: props}})
- return err
-}
-
-// copyFiles copies files and/or directories from src to dst.
-//
-// See section 9.8.5 for when various HTTP status codes apply.
-func copyFiles(ctx context.Context, fs FileSystem, src, dst string, overwrite bool, depth int, recursion int) (status int, err error) {
- if recursion == 1000 {
- return http.StatusInternalServerError, errRecursionTooDeep
- }
- recursion++
-
- // TODO: section 9.8.3 says that "Note that an infinite-depth COPY of /A/
- // into /A/B/ could lead to infinite recursion if not handled correctly."
-
- srcFile, err := fs.OpenFile(ctx, src, os.O_RDONLY, 0)
- if err != nil {
- if os.IsNotExist(err) {
- return http.StatusNotFound, err
- }
- return http.StatusInternalServerError, err
- }
- defer srcFile.Close()
- srcStat, err := srcFile.Stat()
- if err != nil {
- if os.IsNotExist(err) {
- return http.StatusNotFound, err
- }
- return http.StatusInternalServerError, err
- }
- srcPerm := srcStat.Mode() & os.ModePerm
-
- created := false
- if _, err := fs.Stat(ctx, dst); err != nil {
- if os.IsNotExist(err) {
- created = true
- } else {
- return http.StatusForbidden, err
- }
- } else {
- if !overwrite {
- return http.StatusPreconditionFailed, os.ErrExist
- }
- if err := fs.RemoveAll(ctx, dst); err != nil && !os.IsNotExist(err) {
- return http.StatusForbidden, err
- }
- }
-
- if srcStat.IsDir() {
- if err := fs.Mkdir(ctx, dst, srcPerm); err != nil {
- return http.StatusForbidden, err
- }
- if depth == infiniteDepth {
- children, err := srcFile.Readdir(-1)
- if err != nil {
- return http.StatusForbidden, err
- }
- for _, c := range children {
- name := c.Name()
- s := path.Join(src, name)
- d := path.Join(dst, name)
- cStatus, cErr := copyFiles(ctx, fs, s, d, overwrite, depth, recursion)
- if cErr != nil {
- // TODO: MultiStatus.
- return cStatus, cErr
- }
- }
- }
-
- } else {
- dstFile, err := fs.OpenFile(ctx, dst, os.O_RDWR|os.O_CREATE|os.O_TRUNC, srcPerm)
- if err != nil {
- if os.IsNotExist(err) {
- return http.StatusConflict, err
- }
- return http.StatusForbidden, err
-
- }
- _, copyErr := io.Copy(dstFile, srcFile)
- propsErr := copyProps(dstFile, srcFile)
- closeErr := dstFile.Close()
- if copyErr != nil {
- return http.StatusInternalServerError, copyErr
- }
- if propsErr != nil {
- return http.StatusInternalServerError, propsErr
- }
- if closeErr != nil {
- return http.StatusInternalServerError, closeErr
- }
- }
-
- if created {
- return http.StatusCreated, nil
- }
- return http.StatusNoContent, nil
-}
-
-// walkFS traverses filesystem fs starting at name up to depth levels.
-//
-// Allowed values for depth are 0, 1 or infiniteDepth. For each visited node,
-// walkFS calls walkFn. If a visited file system node is a directory and
-// walkFn returns filepath.SkipDir, walkFS will skip traversal of this node.
-func walkFS(ctx context.Context, fs FileSystem, depth int, name string, info os.FileInfo, walkFn filepath.WalkFunc) error {
- // This implementation is based on Walk's code in the standard path/filepath package.
- err := walkFn(name, info, nil)
- if err != nil {
- if info.IsDir() && err == filepath.SkipDir {
- return nil
- }
- return err
- }
- if !info.IsDir() || depth == 0 {
- return nil
- }
- if depth == 1 {
- depth = 0
- }
-
- // Read directory names.
- f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
- if err != nil {
- return walkFn(name, info, err)
- }
- fileInfos, err := f.Readdir(0)
- f.Close()
- if err != nil {
- return walkFn(name, info, err)
- }
-
- for _, fileInfo := range fileInfos {
- filename := path.Join(name, fileInfo.Name())
- fileInfo, err := fs.Stat(ctx, filename)
- if err != nil {
- if err := walkFn(filename, fileInfo, err); err != nil && err != filepath.SkipDir {
- return err
- }
- } else {
- err = walkFS(ctx, fs, depth, filename, fileInfo, walkFn)
- if err != nil {
- if !fileInfo.IsDir() || err != filepath.SkipDir {
- return err
- }
- }
- }
- }
- return nil
-}
diff --git a/vendor/golang.org/x/net/webdav/file_go1.6.go b/vendor/golang.org/x/net/webdav/file_go1.6.go
deleted file mode 100644
index fa38770..0000000
--- a/vendor/golang.org/x/net/webdav/file_go1.6.go
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !go1.7
-
-package webdav
-
-import (
- "net/http"
-
- "golang.org/x/net/context"
-)
-
-func getContext(r *http.Request) context.Context {
- return context.Background()
-}
diff --git a/vendor/golang.org/x/net/webdav/file_go1.7.go b/vendor/golang.org/x/net/webdav/file_go1.7.go
deleted file mode 100644
index d1c3de8..0000000
--- a/vendor/golang.org/x/net/webdav/file_go1.7.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.7
-
-package webdav
-
-import (
- "context"
- "net/http"
-)
-
-func getContext(r *http.Request) context.Context {
- return r.Context()
-}
diff --git a/vendor/golang.org/x/net/webdav/if.go b/vendor/golang.org/x/net/webdav/if.go
deleted file mode 100644
index 416e81c..0000000
--- a/vendor/golang.org/x/net/webdav/if.go
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package webdav
-
-// The If header is covered by Section 10.4.
-// http://www.webdav.org/specs/rfc4918.html#HEADER_If
-
-import (
- "strings"
-)
-
-// ifHeader is a disjunction (OR) of ifLists.
-type ifHeader struct {
- lists []ifList
-}
-
-// ifList is a conjunction (AND) of Conditions, and an optional resource tag.
-type ifList struct {
- resourceTag string
- conditions []Condition
-}
-
-// parseIfHeader parses the "If: foo bar" HTTP header. The httpHeader string
-// should omit the "If:" prefix and have any "\r\n"s collapsed to a " ", as is
-// returned by req.Header.Get("If") for a http.Request req.
-func parseIfHeader(httpHeader string) (h ifHeader, ok bool) {
- s := strings.TrimSpace(httpHeader)
- switch tokenType, _, _ := lex(s); tokenType {
- case '(':
- return parseNoTagLists(s)
- case angleTokenType:
- return parseTaggedLists(s)
- default:
- return ifHeader{}, false
- }
-}
-
-func parseNoTagLists(s string) (h ifHeader, ok bool) {
- for {
- l, remaining, ok := parseList(s)
- if !ok {
- return ifHeader{}, false
- }
- h.lists = append(h.lists, l)
- if remaining == "" {
- return h, true
- }
- s = remaining
- }
-}
-
-func parseTaggedLists(s string) (h ifHeader, ok bool) {
- resourceTag, n := "", 0
- for first := true; ; first = false {
- tokenType, tokenStr, remaining := lex(s)
- switch tokenType {
- case angleTokenType:
- if !first && n == 0 {
- return ifHeader{}, false
- }
- resourceTag, n = tokenStr, 0
- s = remaining
- case '(':
- n++
- l, remaining, ok := parseList(s)
- if !ok {
- return ifHeader{}, false
- }
- l.resourceTag = resourceTag
- h.lists = append(h.lists, l)
- if remaining == "" {
- return h, true
- }
- s = remaining
- default:
- return ifHeader{}, false
- }
- }
-}
-
-func parseList(s string) (l ifList, remaining string, ok bool) {
- tokenType, _, s := lex(s)
- if tokenType != '(' {
- return ifList{}, "", false
- }
- for {
- tokenType, _, remaining = lex(s)
- if tokenType == ')' {
- if len(l.conditions) == 0 {
- return ifList{}, "", false
- }
- return l, remaining, true
- }
- c, remaining, ok := parseCondition(s)
- if !ok {
- return ifList{}, "", false
- }
- l.conditions = append(l.conditions, c)
- s = remaining
- }
-}
-
-func parseCondition(s string) (c Condition, remaining string, ok bool) {
- tokenType, tokenStr, s := lex(s)
- if tokenType == notTokenType {
- c.Not = true
- tokenType, tokenStr, s = lex(s)
- }
- switch tokenType {
- case strTokenType, angleTokenType:
- c.Token = tokenStr
- case squareTokenType:
- c.ETag = tokenStr
- default:
- return Condition{}, "", false
- }
- return c, s, true
-}
-
-// Single-rune tokens like '(' or ')' have a token type equal to their rune.
-// All other tokens have a negative token type.
-const (
- errTokenType = rune(-1)
- eofTokenType = rune(-2)
- strTokenType = rune(-3)
- notTokenType = rune(-4)
- angleTokenType = rune(-5)
- squareTokenType = rune(-6)
-)
-
-func lex(s string) (tokenType rune, tokenStr string, remaining string) {
- // The net/textproto Reader that parses the HTTP header will collapse
- // Linear White Space that spans multiple "\r\n" lines to a single " ",
- // so we don't need to look for '\r' or '\n'.
- for len(s) > 0 && (s[0] == '\t' || s[0] == ' ') {
- s = s[1:]
- }
- if len(s) == 0 {
- return eofTokenType, "", ""
- }
- i := 0
-loop:
- for ; i < len(s); i++ {
- switch s[i] {
- case '\t', ' ', '(', ')', '<', '>', '[', ']':
- break loop
- }
- }
-
- if i != 0 {
- tokenStr, remaining = s[:i], s[i:]
- if tokenStr == "Not" {
- return notTokenType, "", remaining
- }
- return strTokenType, tokenStr, remaining
- }
-
- j := 0
- switch s[0] {
- case '<':
- j, tokenType = strings.IndexByte(s, '>'), angleTokenType
- case '[':
- j, tokenType = strings.IndexByte(s, ']'), squareTokenType
- default:
- return rune(s[0]), "", s[1:]
- }
- if j < 0 {
- return errTokenType, "", ""
- }
- return tokenType, s[1:j], s[j+1:]
-}
diff --git a/vendor/golang.org/x/net/webdav/internal/xml/README b/vendor/golang.org/x/net/webdav/internal/xml/README
deleted file mode 100644
index 89656f4..0000000
--- a/vendor/golang.org/x/net/webdav/internal/xml/README
+++ /dev/null
@@ -1,11 +0,0 @@
-This is a fork of the encoding/xml package at ca1d6c4, the last commit before
-https://go.googlesource.com/go/+/c0d6d33 "encoding/xml: restore Go 1.4 name
-space behavior" made late in the lead-up to the Go 1.5 release.
-
-The list of encoding/xml changes is at
-https://go.googlesource.com/go/+log/master/src/encoding/xml
-
-This fork is temporary, and I (nigeltao) expect to revert it after Go 1.6 is
-released.
-
-See http://golang.org/issue/11841
diff --git a/vendor/golang.org/x/net/webdav/internal/xml/marshal.go b/vendor/golang.org/x/net/webdav/internal/xml/marshal.go
deleted file mode 100644
index cb82ec2..0000000
--- a/vendor/golang.org/x/net/webdav/internal/xml/marshal.go
+++ /dev/null
@@ -1,1223 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package xml
-
-import (
- "bufio"
- "bytes"
- "encoding"
- "fmt"
- "io"
- "reflect"
- "strconv"
- "strings"
-)
-
-const (
- // A generic XML header suitable for use with the output of Marshal.
- // This is not automatically added to any output of this package,
- // it is provided as a convenience.
- Header = `<?xml version="1.0" encoding="UTF-8"?>` + "\n"
-)
-
-// Marshal returns the XML encoding of v.
-//
-// Marshal handles an array or slice by marshalling each of the elements.
-// Marshal handles a pointer by marshalling the value it points at or, if the
-// pointer is nil, by writing nothing. Marshal handles an interface value by
-// marshalling the value it contains or, if the interface value is nil, by
-// writing nothing. Marshal handles all other data by writing one or more XML
-// elements containing the data.
-//
-// The name for the XML elements is taken from, in order of preference:
-// - the tag on the XMLName field, if the data is a struct
-// - the value of the XMLName field of type xml.Name
-// - the tag of the struct field used to obtain the data
-// - the name of the struct field used to obtain the data
-// - the name of the marshalled type
-//
-// The XML element for a struct contains marshalled elements for each of the
-// exported fields of the struct, with these exceptions:
-// - the XMLName field, described above, is omitted.
-// - a field with tag "-" is omitted.
-// - a field with tag "name,attr" becomes an attribute with
-// the given name in the XML element.
-// - a field with tag ",attr" becomes an attribute with the
-// field name in the XML element.
-// - a field with tag ",chardata" is written as character data,
-// not as an XML element.
-// - a field with tag ",innerxml" is written verbatim, not subject
-// to the usual marshalling procedure.
-// - a field with tag ",comment" is written as an XML comment, not
-// subject to the usual marshalling procedure. It must not contain
-// the "--" string within it.
-// - a field with a tag including the "omitempty" option is omitted
-// if the field value is empty. The empty values are false, 0, any
-// nil pointer or interface value, and any array, slice, map, or
-// string of length zero.
-// - an anonymous struct field is handled as if the fields of its
-// value were part of the outer struct.
-//
-// If a field uses a tag "a>b>c", then the element c will be nested inside
-// parent elements a and b. Fields that appear next to each other that name
-// the same parent will be enclosed in one XML element.
-//
-// See MarshalIndent for an example.
-//
-// Marshal will return an error if asked to marshal a channel, function, or map.
-func Marshal(v interface{}) ([]byte, error) {
- var b bytes.Buffer
- if err := NewEncoder(&b).Encode(v); err != nil {
- return nil, err
- }
- return b.Bytes(), nil
-}
-
-// Marshaler is the interface implemented by objects that can marshal
-// themselves into valid XML elements.
-//
-// MarshalXML encodes the receiver as zero or more XML elements.
-// By convention, arrays or slices are typically encoded as a sequence
-// of elements, one per entry.
-// Using start as the element tag is not required, but doing so
-// will enable Unmarshal to match the XML elements to the correct
-// struct field.
-// One common implementation strategy is to construct a separate
-// value with a layout corresponding to the desired XML and then
-// to encode it using e.EncodeElement.
-// Another common strategy is to use repeated calls to e.EncodeToken
-// to generate the XML output one token at a time.
-// The sequence of encoded tokens must make up zero or more valid
-// XML elements.
-type Marshaler interface {
- MarshalXML(e *Encoder, start StartElement) error
-}
-
-// MarshalerAttr is the interface implemented by objects that can marshal
-// themselves into valid XML attributes.
-//
-// MarshalXMLAttr returns an XML attribute with the encoded value of the receiver.
-// Using name as the attribute name is not required, but doing so
-// will enable Unmarshal to match the attribute to the correct
-// struct field.
-// If MarshalXMLAttr returns the zero attribute Attr{}, no attribute
-// will be generated in the output.
-// MarshalXMLAttr is used only for struct fields with the
-// "attr" option in the field tag.
-type MarshalerAttr interface {
- MarshalXMLAttr(name Name) (Attr, error)
-}
-
-// MarshalIndent works like Marshal, but each XML element begins on a new
-// indented line that starts with prefix and is followed by one or more
-// copies of indent according to the nesting depth.
-func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
- var b bytes.Buffer
- enc := NewEncoder(&b)
- enc.Indent(prefix, indent)
- if err := enc.Encode(v); err != nil {
- return nil, err
- }
- return b.Bytes(), nil
-}
-
-// An Encoder writes XML data to an output stream.
-type Encoder struct {
- p printer
-}
-
-// NewEncoder returns a new encoder that writes to w.
-func NewEncoder(w io.Writer) *Encoder {
- e := &Encoder{printer{Writer: bufio.NewWriter(w)}}
- e.p.encoder = e
- return e
-}
-
-// Indent sets the encoder to generate XML in which each element
-// begins on a new indented line that starts with prefix and is followed by
-// one or more copies of indent according to the nesting depth.
-func (enc *Encoder) Indent(prefix, indent string) {
- enc.p.prefix = prefix
- enc.p.indent = indent
-}
-
-// Encode writes the XML encoding of v to the stream.
-//
-// See the documentation for Marshal for details about the conversion
-// of Go values to XML.
-//
-// Encode calls Flush before returning.
-func (enc *Encoder) Encode(v interface{}) error {
- err := enc.p.marshalValue(reflect.ValueOf(v), nil, nil)
- if err != nil {
- return err
- }
- return enc.p.Flush()
-}
-
-// EncodeElement writes the XML encoding of v to the stream,
-// using start as the outermost tag in the encoding.
-//
-// See the documentation for Marshal for details about the conversion
-// of Go values to XML.
-//
-// EncodeElement calls Flush before returning.
-func (enc *Encoder) EncodeElement(v interface{}, start StartElement) error {
- err := enc.p.marshalValue(reflect.ValueOf(v), nil, &start)
- if err != nil {
- return err
- }
- return enc.p.Flush()
-}
-
-var (
- begComment = []byte("<!--")
- endComment = []byte("-->")
- endProcInst = []byte("?>")
- endDirective = []byte(">")
-)
-
-// EncodeToken writes the given XML token to the stream.
-// It returns an error if StartElement and EndElement tokens are not
-// properly matched.
-//
-// EncodeToken does not call Flush, because usually it is part of a
-// larger operation such as Encode or EncodeElement (or a custom
-// Marshaler's MarshalXML invoked during those), and those will call
-// Flush when finished. Callers that create an Encoder and then invoke
-// EncodeToken directly, without using Encode or EncodeElement, need to
-// call Flush when finished to ensure that the XML is written to the
-// underlying writer.
-//
-// EncodeToken allows writing a ProcInst with Target set to "xml" only
-// as the first token in the stream.
-//
-// When encoding a StartElement holding an XML namespace prefix
-// declaration for a prefix that is not already declared, contained
-// elements (including the StartElement itself) will use the declared
-// prefix when encoding names with matching namespace URIs.
-func (enc *Encoder) EncodeToken(t Token) error {
-
- p := &enc.p
- switch t := t.(type) {
- case StartElement:
- if err := p.writeStart(&t); err != nil {
- return err
- }
- case EndElement:
- if err := p.writeEnd(t.Name); err != nil {
- return err
- }
- case CharData:
- escapeText(p, t, false)
- case Comment:
- if bytes.Contains(t, endComment) {
- return fmt.Errorf("xml: EncodeToken of Comment containing --> marker")
- }
- p.WriteString("<!--")
- p.Write(t)
- p.WriteString("-->")
- return p.cachedWriteError()
- case ProcInst:
- // First token to be encoded which is also a ProcInst with target of xml
- // is the xml declaration. The only ProcInst where target of xml is allowed.
- if t.Target == "xml" && p.Buffered() != 0 {
- return fmt.Errorf("xml: EncodeToken of ProcInst xml target only valid for xml declaration, first token encoded")
- }
- if !isNameString(t.Target) {
- return fmt.Errorf("xml: EncodeToken of ProcInst with invalid Target")
- }
- if bytes.Contains(t.Inst, endProcInst) {
- return fmt.Errorf("xml: EncodeToken of ProcInst containing ?> marker")
- }
- p.WriteString("<?")
- p.WriteString(t.Target)
- if len(t.Inst) > 0 {
- p.WriteByte(' ')
- p.Write(t.Inst)
- }
- p.WriteString("?>")
- case Directive:
- if !isValidDirective(t) {
- return fmt.Errorf("xml: EncodeToken of Directive containing wrong < or > markers")
- }
- p.WriteString("<!")
- p.Write(t)
- p.WriteString(">")
- default:
- return fmt.Errorf("xml: EncodeToken of invalid token type")
-
- }
- return p.cachedWriteError()
-}
-
-// isValidDirective reports whether dir is a valid directive text,
-// meaning angle brackets are matched, ignoring comments and strings.
-func isValidDirective(dir Directive) bool {
- var (
- depth int
- inquote uint8
- incomment bool
- )
- for i, c := range dir {
- switch {
- case incomment:
- if c == '>' {
- if n := 1 + i - len(endComment); n >= 0 && bytes.Equal(dir[n:i+1], endComment) {
- incomment = false
- }
- }
- // Just ignore anything in comment
- case inquote != 0:
- if c == inquote {
- inquote = 0
- }
- // Just ignore anything within quotes
- case c == '\'' || c == '"':
- inquote = c
- case c == '<':
- if i+len(begComment) < len(dir) && bytes.Equal(dir[i:i+len(begComment)], begComment) {
- incomment = true
- } else {
- depth++
- }
- case c == '>':
- if depth == 0 {
- return false
- }
- depth--
- }
- }
- return depth == 0 && inquote == 0 && !incomment
-}
-
-// Flush flushes any buffered XML to the underlying writer.
-// See the EncodeToken documentation for details about when it is necessary.
-func (enc *Encoder) Flush() error {
- return enc.p.Flush()
-}
-
-type printer struct {
- *bufio.Writer
- encoder *Encoder
- seq int
- indent string
- prefix string
- depth int
- indentedIn bool
- putNewline bool
- defaultNS string
- attrNS map[string]string // map prefix -> name space
- attrPrefix map[string]string // map name space -> prefix
- prefixes []printerPrefix
- tags []Name
-}
-
-// printerPrefix holds a namespace undo record.
-// When an element is popped, the prefix record
-// is set back to the recorded URL. The empty
-// prefix records the URL for the default name space.
-//
-// The start of an element is recorded with an element
-// that has mark=true.
-type printerPrefix struct {
- prefix string
- url string
- mark bool
-}
-
-func (p *printer) prefixForNS(url string, isAttr bool) string {
- // The "http://www.w3.org/XML/1998/namespace" name space is predefined as "xml"
- // and must be referred to that way.
- // (The "http://www.w3.org/2000/xmlns/" name space is also predefined as "xmlns",
- // but users should not be trying to use that one directly - that's our job.)
- if url == xmlURL {
- return "xml"
- }
- if !isAttr && url == p.defaultNS {
- // We can use the default name space.
- return ""
- }
- return p.attrPrefix[url]
-}
-
-// defineNS pushes any namespace definition found in the given attribute.
-// If ignoreNonEmptyDefault is true, an xmlns="nonempty"
-// attribute will be ignored.
-func (p *printer) defineNS(attr Attr, ignoreNonEmptyDefault bool) error {
- var prefix string
- if attr.Name.Local == "xmlns" {
- if attr.Name.Space != "" && attr.Name.Space != "xml" && attr.Name.Space != xmlURL {
- return fmt.Errorf("xml: cannot redefine xmlns attribute prefix")
- }
- } else if attr.Name.Space == "xmlns" && attr.Name.Local != "" {
- prefix = attr.Name.Local
- if attr.Value == "" {
- // Technically, an empty XML namespace is allowed for an attribute.
- // From http://www.w3.org/TR/xml-names11/#scoping-defaulting:
- //
- // The attribute value in a namespace declaration for a prefix may be
- // empty. This has the effect, within the scope of the declaration, of removing
- // any association of the prefix with a namespace name.
- //
- // However our namespace prefixes here are used only as hints. There's
- // no need to respect the removal of a namespace prefix, so we ignore it.
- return nil
- }
- } else {
- // Ignore: it's not a namespace definition
- return nil
- }
- if prefix == "" {
- if attr.Value == p.defaultNS {
- // No need for redefinition.
- return nil
- }
- if attr.Value != "" && ignoreNonEmptyDefault {
- // We have an xmlns="..." value but
- // it can't define a name space in this context,
- // probably because the element has an empty
- // name space. In this case, we just ignore
- // the name space declaration.
- return nil
- }
- } else if _, ok := p.attrPrefix[attr.Value]; ok {
- // There's already a prefix for the given name space,
- // so use that. This prevents us from
- // having two prefixes for the same name space
- // so attrNS and attrPrefix can remain bijective.
- return nil
- }
- p.pushPrefix(prefix, attr.Value)
- return nil
-}
-
-// createNSPrefix creates a name space prefix attribute
-// to use for the given name space, defining a new prefix
-// if necessary.
-// If isAttr is true, the prefix is to be created for an attribute
-// prefix, which means that the default name space cannot
-// be used.
-func (p *printer) createNSPrefix(url string, isAttr bool) {
- if _, ok := p.attrPrefix[url]; ok {
- // We already have a prefix for the given URL.
- return
- }
- switch {
- case !isAttr && url == p.defaultNS:
- // We can use the default name space.
- return
- case url == "":
- // The only way we can encode names in the empty
- // name space is by using the default name space,
- // so we must use that.
- if p.defaultNS != "" {
- // The default namespace is non-empty, so we
- // need to set it to empty.
- p.pushPrefix("", "")
- }
- return
- case url == xmlURL:
- return
- }
- // TODO If the URL is an existing prefix, we could
- // use it as is. That would enable the
- // marshaling of elements that had been unmarshaled
- // and with a name space prefix that was not found.
- // although technically it would be incorrect.
-
- // Pick a name. We try to use the final element of the path
- // but fall back to _.
- prefix := strings.TrimRight(url, "/")
- if i := strings.LastIndex(prefix, "/"); i >= 0 {
- prefix = prefix[i+1:]
- }
- if prefix == "" || !isName([]byte(prefix)) || strings.Contains(prefix, ":") {
- prefix = "_"
- }
- if strings.HasPrefix(prefix, "xml") {
- // xmlanything is reserved.
- prefix = "_" + prefix
- }
- if p.attrNS[prefix] != "" {
- // Name is taken. Find a better one.
- for p.seq++; ; p.seq++ {
- if id := prefix + "_" + strconv.Itoa(p.seq); p.attrNS[id] == "" {
- prefix = id
- break
- }
- }
- }
-
- p.pushPrefix(prefix, url)
-}
-
-// writeNamespaces writes xmlns attributes for all the
-// namespace prefixes that have been defined in
-// the current element.
-func (p *printer) writeNamespaces() {
- for i := len(p.prefixes) - 1; i >= 0; i-- {
- prefix := p.prefixes[i]
- if prefix.mark {
- return
- }
- p.WriteString(" ")
- if prefix.prefix == "" {
- // Default name space.
- p.WriteString(`xmlns="`)
- } else {
- p.WriteString("xmlns:")
- p.WriteString(prefix.prefix)
- p.WriteString(`="`)
- }
- EscapeText(p, []byte(p.nsForPrefix(prefix.prefix)))
- p.WriteString(`"`)
- }
-}
-
-// pushPrefix pushes a new prefix on the prefix stack
-// without checking to see if it is already defined.
-func (p *printer) pushPrefix(prefix, url string) {
- p.prefixes = append(p.prefixes, printerPrefix{
- prefix: prefix,
- url: p.nsForPrefix(prefix),
- })
- p.setAttrPrefix(prefix, url)
-}
-
-// nsForPrefix returns the name space for the given
-// prefix. Note that this is not valid for the
-// empty attribute prefix, which always has an empty
-// name space.
-func (p *printer) nsForPrefix(prefix string) string {
- if prefix == "" {
- return p.defaultNS
- }
- return p.attrNS[prefix]
-}
-
-// markPrefix marks the start of an element on the prefix
-// stack.
-func (p *printer) markPrefix() {
- p.prefixes = append(p.prefixes, printerPrefix{
- mark: true,
- })
-}
-
-// popPrefix pops all defined prefixes for the current
-// element.
-func (p *printer) popPrefix() {
- for len(p.prefixes) > 0 {
- prefix := p.prefixes[len(p.prefixes)-1]
- p.prefixes = p.prefixes[:len(p.prefixes)-1]
- if prefix.mark {
- break
- }
- p.setAttrPrefix(prefix.prefix, prefix.url)
- }
-}
-
-// setAttrPrefix sets an attribute name space prefix.
-// If url is empty, the attribute is removed.
-// If prefix is empty, the default name space is set.
-func (p *printer) setAttrPrefix(prefix, url string) {
- if prefix == "" {
- p.defaultNS = url
- return
- }
- if url == "" {
- delete(p.attrPrefix, p.attrNS[prefix])
- delete(p.attrNS, prefix)
- return
- }
- if p.attrPrefix == nil {
- // Need to define a new name space.
- p.attrPrefix = make(map[string]string)
- p.attrNS = make(map[string]string)
- }
- // Remove any old prefix value. This is OK because we maintain a
- // strict one-to-one mapping between prefix and URL (see
- // defineNS)
- delete(p.attrPrefix, p.attrNS[prefix])
- p.attrPrefix[url] = prefix
- p.attrNS[prefix] = url
-}
-
-var (
- marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem()
- marshalerAttrType = reflect.TypeOf((*MarshalerAttr)(nil)).Elem()
- textMarshalerType = reflect.TypeOf((*encoding.TextMarshaler)(nil)).Elem()
-)
-
-// marshalValue writes one or more XML elements representing val.
-// If val was obtained from a struct field, finfo must have its details.
-func (p *printer) marshalValue(val reflect.Value, finfo *fieldInfo, startTemplate *StartElement) error {
- if startTemplate != nil && startTemplate.Name.Local == "" {
- return fmt.Errorf("xml: EncodeElement of StartElement with missing name")
- }
-
- if !val.IsValid() {
- return nil
- }
- if finfo != nil && finfo.flags&fOmitEmpty != 0 && isEmptyValue(val) {
- return nil
- }
-
- // Drill into interfaces and pointers.
- // This can turn into an infinite loop given a cyclic chain,
- // but it matches the Go 1 behavior.
- for val.Kind() == reflect.Interface || val.Kind() == reflect.Ptr {
- if val.IsNil() {
- return nil
- }
- val = val.Elem()
- }
-
- kind := val.Kind()
- typ := val.Type()
-
- // Check for marshaler.
- if val.CanInterface() && typ.Implements(marshalerType) {
- return p.marshalInterface(val.Interface().(Marshaler), p.defaultStart(typ, finfo, startTemplate))
- }
- if val.CanAddr() {
- pv := val.Addr()
- if pv.CanInterface() && pv.Type().Implements(marshalerType) {
- return p.marshalInterface(pv.Interface().(Marshaler), p.defaultStart(pv.Type(), finfo, startTemplate))
- }
- }
-
- // Check for text marshaler.
- if val.CanInterface() && typ.Implements(textMarshalerType) {
- return p.marshalTextInterface(val.Interface().(encoding.TextMarshaler), p.defaultStart(typ, finfo, startTemplate))
- }
- if val.CanAddr() {
- pv := val.Addr()
- if pv.CanInterface() && pv.Type().Implements(textMarshalerType) {
- return p.marshalTextInterface(pv.Interface().(encoding.TextMarshaler), p.defaultStart(pv.Type(), finfo, startTemplate))
- }
- }
-
- // Slices and arrays iterate over the elements. They do not have an enclosing tag.
- if (kind == reflect.Slice || kind == reflect.Array) && typ.Elem().Kind() != reflect.Uint8 {
- for i, n := 0, val.Len(); i < n; i++ {
- if err := p.marshalValue(val.Index(i), finfo, startTemplate); err != nil {
- return err
- }
- }
- return nil
- }
-
- tinfo, err := getTypeInfo(typ)
- if err != nil {
- return err
- }
-
- // Create start element.
- // Precedence for the XML element name is:
- // 0. startTemplate
- // 1. XMLName field in underlying struct;
- // 2. field name/tag in the struct field; and
- // 3. type name
- var start StartElement
-
- // explicitNS records whether the element's name space has been
- // explicitly set (for example an XMLName field).
- explicitNS := false
-
- if startTemplate != nil {
- start.Name = startTemplate.Name
- explicitNS = true
- start.Attr = append(start.Attr, startTemplate.Attr...)
- } else if tinfo.xmlname != nil {
- xmlname := tinfo.xmlname
- if xmlname.name != "" {
- start.Name.Space, start.Name.Local = xmlname.xmlns, xmlname.name
- } else if v, ok := xmlname.value(val).Interface().(Name); ok && v.Local != "" {
- start.Name = v
- }
- explicitNS = true
- }
- if start.Name.Local == "" && finfo != nil {
- start.Name.Local = finfo.name
- if finfo.xmlns != "" {
- start.Name.Space = finfo.xmlns
- explicitNS = true
- }
- }
- if start.Name.Local == "" {
- name := typ.Name()
- if name == "" {
- return &UnsupportedTypeError{typ}
- }
- start.Name.Local = name
- }
-
- // defaultNS records the default name space as set by a xmlns="..."
- // attribute. We don't set p.defaultNS because we want to let
- // the attribute writing code (in p.defineNS) be solely responsible
- // for maintaining that.
- defaultNS := p.defaultNS
-
- // Attributes
- for i := range tinfo.fields {
- finfo := &tinfo.fields[i]
- if finfo.flags&fAttr == 0 {
- continue
- }
- attr, err := p.fieldAttr(finfo, val)
- if err != nil {
- return err
- }
- if attr.Name.Local == "" {
- continue
- }
- start.Attr = append(start.Attr, attr)
- if attr.Name.Space == "" && attr.Name.Local == "xmlns" {
- defaultNS = attr.Value
- }
- }
- if !explicitNS {
- // Historic behavior: elements use the default name space
- // they are contained in by default.
- start.Name.Space = defaultNS
- }
- // Historic behaviour: an element that's in a namespace sets
- // the default namespace for all elements contained within it.
- start.setDefaultNamespace()
-
- if err := p.writeStart(&start); err != nil {
- return err
- }
-
- if val.Kind() == reflect.Struct {
- err = p.marshalStruct(tinfo, val)
- } else {
- s, b, err1 := p.marshalSimple(typ, val)
- if err1 != nil {
- err = err1
- } else if b != nil {
- EscapeText(p, b)
- } else {
- p.EscapeString(s)
- }
- }
- if err != nil {
- return err
- }
-
- if err := p.writeEnd(start.Name); err != nil {
- return err
- }
-
- return p.cachedWriteError()
-}
-
-// fieldAttr returns the attribute of the given field.
-// If the returned attribute has an empty Name.Local,
-// it should not be used.
-// The given value holds the value containing the field.
-func (p *printer) fieldAttr(finfo *fieldInfo, val reflect.Value) (Attr, error) {
- fv := finfo.value(val)
- name := Name{Space: finfo.xmlns, Local: finfo.name}
- if finfo.flags&fOmitEmpty != 0 && isEmptyValue(fv) {
- return Attr{}, nil
- }
- if fv.Kind() == reflect.Interface && fv.IsNil() {
- return Attr{}, nil
- }
- if fv.CanInterface() && fv.Type().Implements(marshalerAttrType) {
- attr, err := fv.Interface().(MarshalerAttr).MarshalXMLAttr(name)
- return attr, err
- }
- if fv.CanAddr() {
- pv := fv.Addr()
- if pv.CanInterface() && pv.Type().Implements(marshalerAttrType) {
- attr, err := pv.Interface().(MarshalerAttr).MarshalXMLAttr(name)
- return attr, err
- }
- }
- if fv.CanInterface() && fv.Type().Implements(textMarshalerType) {
- text, err := fv.Interface().(encoding.TextMarshaler).MarshalText()
- if err != nil {
- return Attr{}, err
- }
- return Attr{name, string(text)}, nil
- }
- if fv.CanAddr() {
- pv := fv.Addr()
- if pv.CanInterface() && pv.Type().Implements(textMarshalerType) {
- text, err := pv.Interface().(encoding.TextMarshaler).MarshalText()
- if err != nil {
- return Attr{}, err
- }
- return Attr{name, string(text)}, nil
- }
- }
- // Dereference or skip nil pointer, interface values.
- switch fv.Kind() {
- case reflect.Ptr, reflect.Interface:
- if fv.IsNil() {
- return Attr{}, nil
- }
- fv = fv.Elem()
- }
- s, b, err := p.marshalSimple(fv.Type(), fv)
- if err != nil {
- return Attr{}, err
- }
- if b != nil {
- s = string(b)
- }
- return Attr{name, s}, nil
-}
-
-// defaultStart returns the default start element to use,
-// given the reflect type, field info, and start template.
-func (p *printer) defaultStart(typ reflect.Type, finfo *fieldInfo, startTemplate *StartElement) StartElement {
- var start StartElement
- // Precedence for the XML element name is as above,
- // except that we do not look inside structs for the first field.
- if startTemplate != nil {
- start.Name = startTemplate.Name
- start.Attr = append(start.Attr, startTemplate.Attr...)
- } else if finfo != nil && finfo.name != "" {
- start.Name.Local = finfo.name
- start.Name.Space = finfo.xmlns
- } else if typ.Name() != "" {
- start.Name.Local = typ.Name()
- } else {
- // Must be a pointer to a named type,
- // since it has the Marshaler methods.
- start.Name.Local = typ.Elem().Name()
- }
- // Historic behaviour: elements use the name space of
- // the element they are contained in by default.
- if start.Name.Space == "" {
- start.Name.Space = p.defaultNS
- }
- start.setDefaultNamespace()
- return start
-}
-
-// marshalInterface marshals a Marshaler interface value.
-func (p *printer) marshalInterface(val Marshaler, start StartElement) error {
- // Push a marker onto the tag stack so that MarshalXML
- // cannot close the XML tags that it did not open.
- p.tags = append(p.tags, Name{})
- n := len(p.tags)
-
- err := val.MarshalXML(p.encoder, start)
- if err != nil {
- return err
- }
-
- // Make sure MarshalXML closed all its tags. p.tags[n-1] is the mark.
- if len(p.tags) > n {
- return fmt.Errorf("xml: %s.MarshalXML wrote invalid XML: <%s> not closed", receiverType(val), p.tags[len(p.tags)-1].Local)
- }
- p.tags = p.tags[:n-1]
- return nil
-}
-
-// marshalTextInterface marshals a TextMarshaler interface value.
-func (p *printer) marshalTextInterface(val encoding.TextMarshaler, start StartElement) error {
- if err := p.writeStart(&start); err != nil {
- return err
- }
- text, err := val.MarshalText()
- if err != nil {
- return err
- }
- EscapeText(p, text)
- return p.writeEnd(start.Name)
-}
-
-// writeStart writes the given start element.
-func (p *printer) writeStart(start *StartElement) error {
- if start.Name.Local == "" {
- return fmt.Errorf("xml: start tag with no name")
- }
-
- p.tags = append(p.tags, start.Name)
- p.markPrefix()
- // Define any name spaces explicitly declared in the attributes.
- // We do this as a separate pass so that explicitly declared prefixes
- // will take precedence over implicitly declared prefixes
- // regardless of the order of the attributes.
- ignoreNonEmptyDefault := start.Name.Space == ""
- for _, attr := range start.Attr {
- if err := p.defineNS(attr, ignoreNonEmptyDefault); err != nil {
- return err
- }
- }
- // Define any new name spaces implied by the attributes.
- for _, attr := range start.Attr {
- name := attr.Name
- // From http://www.w3.org/TR/xml-names11/#defaulting
- // "Default namespace declarations do not apply directly
- // to attribute names; the interpretation of unprefixed
- // attributes is determined by the element on which they
- // appear."
- // This means we don't need to create a new namespace
- // when an attribute name space is empty.
- if name.Space != "" && !name.isNamespace() {
- p.createNSPrefix(name.Space, true)
- }
- }
- p.createNSPrefix(start.Name.Space, false)
-
- p.writeIndent(1)
- p.WriteByte('<')
- p.writeName(start.Name, false)
- p.writeNamespaces()
- for _, attr := range start.Attr {
- name := attr.Name
- if name.Local == "" || name.isNamespace() {
- // Namespaces have already been written by writeNamespaces above.
- continue
- }
- p.WriteByte(' ')
- p.writeName(name, true)
- p.WriteString(`="`)
- p.EscapeString(attr.Value)
- p.WriteByte('"')
- }
- p.WriteByte('>')
- return nil
-}
-
-// writeName writes the given name. It assumes
-// that p.createNSPrefix(name) has already been called.
-func (p *printer) writeName(name Name, isAttr bool) {
- if prefix := p.prefixForNS(name.Space, isAttr); prefix != "" {
- p.WriteString(prefix)
- p.WriteByte(':')
- }
- p.WriteString(name.Local)
-}
-
-func (p *printer) writeEnd(name Name) error {
- if name.Local == "" {
- return fmt.Errorf("xml: end tag with no name")
- }
- if len(p.tags) == 0 || p.tags[len(p.tags)-1].Local == "" {
- return fmt.Errorf("xml: end tag </%s> without start tag", name.Local)
- }
- if top := p.tags[len(p.tags)-1]; top != name {
- if top.Local != name.Local {
- return fmt.Errorf("xml: end tag </%s> does not match start tag <%s>", name.Local, top.Local)
- }
- return fmt.Errorf("xml: end tag </%s> in namespace %s does not match start tag <%s> in namespace %s", name.Local, name.Space, top.Local, top.Space)
- }
- p.tags = p.tags[:len(p.tags)-1]
-
- p.writeIndent(-1)
- p.WriteByte('<')
- p.WriteByte('/')
- p.writeName(name, false)
- p.WriteByte('>')
- p.popPrefix()
- return nil
-}
-
-func (p *printer) marshalSimple(typ reflect.Type, val reflect.Value) (string, []byte, error) {
- switch val.Kind() {
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- return strconv.FormatInt(val.Int(), 10), nil, nil
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- return strconv.FormatUint(val.Uint(), 10), nil, nil
- case reflect.Float32, reflect.Float64:
- return strconv.FormatFloat(val.Float(), 'g', -1, val.Type().Bits()), nil, nil
- case reflect.String:
- return val.String(), nil, nil
- case reflect.Bool:
- return strconv.FormatBool(val.Bool()), nil, nil
- case reflect.Array:
- if typ.Elem().Kind() != reflect.Uint8 {
- break
- }
- // [...]byte
- var bytes []byte
- if val.CanAddr() {
- bytes = val.Slice(0, val.Len()).Bytes()
- } else {
- bytes = make([]byte, val.Len())
- reflect.Copy(reflect.ValueOf(bytes), val)
- }
- return "", bytes, nil
- case reflect.Slice:
- if typ.Elem().Kind() != reflect.Uint8 {
- break
- }
- // []byte
- return "", val.Bytes(), nil
- }
- return "", nil, &UnsupportedTypeError{typ}
-}
-
-var ddBytes = []byte("--")
-
-func (p *printer) marshalStruct(tinfo *typeInfo, val reflect.Value) error {
- s := parentStack{p: p}
- for i := range tinfo.fields {
- finfo := &tinfo.fields[i]
- if finfo.flags&fAttr != 0 {
- continue
- }
- vf := finfo.value(val)
-
- // Dereference or skip nil pointer, interface values.
- switch vf.Kind() {
- case reflect.Ptr, reflect.Interface:
- if !vf.IsNil() {
- vf = vf.Elem()
- }
- }
-
- switch finfo.flags & fMode {
- case fCharData:
- if err := s.setParents(&noField, reflect.Value{}); err != nil {
- return err
- }
- if vf.CanInterface() && vf.Type().Implements(textMarshalerType) {
- data, err := vf.Interface().(encoding.TextMarshaler).MarshalText()
- if err != nil {
- return err
- }
- Escape(p, data)
- continue
- }
- if vf.CanAddr() {
- pv := vf.Addr()
- if pv.CanInterface() && pv.Type().Implements(textMarshalerType) {
- data, err := pv.Interface().(encoding.TextMarshaler).MarshalText()
- if err != nil {
- return err
- }
- Escape(p, data)
- continue
- }
- }
- var scratch [64]byte
- switch vf.Kind() {
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- Escape(p, strconv.AppendInt(scratch[:0], vf.Int(), 10))
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- Escape(p, strconv.AppendUint(scratch[:0], vf.Uint(), 10))
- case reflect.Float32, reflect.Float64:
- Escape(p, strconv.AppendFloat(scratch[:0], vf.Float(), 'g', -1, vf.Type().Bits()))
- case reflect.Bool:
- Escape(p, strconv.AppendBool(scratch[:0], vf.Bool()))
- case reflect.String:
- if err := EscapeText(p, []byte(vf.String())); err != nil {
- return err
- }
- case reflect.Slice:
- if elem, ok := vf.Interface().([]byte); ok {
- if err := EscapeText(p, elem); err != nil {
- return err
- }
- }
- }
- continue
-
- case fComment:
- if err := s.setParents(&noField, reflect.Value{}); err != nil {
- return err
- }
- k := vf.Kind()
- if !(k == reflect.String || k == reflect.Slice && vf.Type().Elem().Kind() == reflect.Uint8) {
- return fmt.Errorf("xml: bad type for comment field of %s", val.Type())
- }
- if vf.Len() == 0 {
- continue
- }
- p.writeIndent(0)
- p.WriteString("<!--")
- dashDash := false
- dashLast := false
- switch k {
- case reflect.String:
- s := vf.String()
- dashDash = strings.Index(s, "--") >= 0
- dashLast = s[len(s)-1] == '-'
- if !dashDash {
- p.WriteString(s)
- }
- case reflect.Slice:
- b := vf.Bytes()
- dashDash = bytes.Index(b, ddBytes) >= 0
- dashLast = b[len(b)-1] == '-'
- if !dashDash {
- p.Write(b)
- }
- default:
- panic("can't happen")
- }
- if dashDash {
- return fmt.Errorf(`xml: comments must not contain "--"`)
- }
- if dashLast {
- // "--->" is invalid grammar. Make it "- -->"
- p.WriteByte(' ')
- }
- p.WriteString("-->")
- continue
-
- case fInnerXml:
- iface := vf.Interface()
- switch raw := iface.(type) {
- case []byte:
- p.Write(raw)
- continue
- case string:
- p.WriteString(raw)
- continue
- }
-
- case fElement, fElement | fAny:
- if err := s.setParents(finfo, vf); err != nil {
- return err
- }
- }
- if err := p.marshalValue(vf, finfo, nil); err != nil {
- return err
- }
- }
- if err := s.setParents(&noField, reflect.Value{}); err != nil {
- return err
- }
- return p.cachedWriteError()
-}
-
-var noField fieldInfo
-
-// return the bufio Writer's cached write error
-func (p *printer) cachedWriteError() error {
- _, err := p.Write(nil)
- return err
-}
-
-func (p *printer) writeIndent(depthDelta int) {
- if len(p.prefix) == 0 && len(p.indent) == 0 {
- return
- }
- if depthDelta < 0 {
- p.depth--
- if p.indentedIn {
- p.indentedIn = false
- return
- }
- p.indentedIn = false
- }
- if p.putNewline {
- p.WriteByte('\n')
- } else {
- p.putNewline = true
- }
- if len(p.prefix) > 0 {
- p.WriteString(p.prefix)
- }
- if len(p.indent) > 0 {
- for i := 0; i < p.depth; i++ {
- p.WriteString(p.indent)
- }
- }
- if depthDelta > 0 {
- p.depth++
- p.indentedIn = true
- }
-}
-
-type parentStack struct {
- p *printer
- xmlns string
- parents []string
-}
-
-// setParents sets the stack of current parents to those found in finfo.
-// It only writes the start elements if vf holds a non-nil value.
-// If finfo is &noField, it pops all elements.
-func (s *parentStack) setParents(finfo *fieldInfo, vf reflect.Value) error {
- xmlns := s.p.defaultNS
- if finfo.xmlns != "" {
- xmlns = finfo.xmlns
- }
- commonParents := 0
- if xmlns == s.xmlns {
- for ; commonParents < len(finfo.parents) && commonParents < len(s.parents); commonParents++ {
- if finfo.parents[commonParents] != s.parents[commonParents] {
- break
- }
- }
- }
- // Pop off any parents that aren't in common with the previous field.
- for i := len(s.parents) - 1; i >= commonParents; i-- {
- if err := s.p.writeEnd(Name{
- Space: s.xmlns,
- Local: s.parents[i],
- }); err != nil {
- return err
- }
- }
- s.parents = finfo.parents
- s.xmlns = xmlns
- if commonParents >= len(s.parents) {
- // No new elements to push.
- return nil
- }
- if (vf.Kind() == reflect.Ptr || vf.Kind() == reflect.Interface) && vf.IsNil() {
- // The element is nil, so no need for the start elements.
- s.parents = s.parents[:commonParents]
- return nil
- }
- // Push any new parents required.
- for _, name := range s.parents[commonParents:] {
- start := &StartElement{
- Name: Name{
- Space: s.xmlns,
- Local: name,
- },
- }
- // Set the default name space for parent elements
- // to match what we do with other elements.
- if s.xmlns != s.p.defaultNS {
- start.setDefaultNamespace()
- }
- if err := s.p.writeStart(start); err != nil {
- return err
- }
- }
- return nil
-}
-
-// A MarshalXMLError is returned when Marshal encounters a type
-// that cannot be converted into XML.
-type UnsupportedTypeError struct {
- Type reflect.Type
-}
-
-func (e *UnsupportedTypeError) Error() string {
- return "xml: unsupported type: " + e.Type.String()
-}
-
-func isEmptyValue(v reflect.Value) bool {
- switch v.Kind() {
- case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
- return v.Len() == 0
- case reflect.Bool:
- return !v.Bool()
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- return v.Int() == 0
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- return v.Uint() == 0
- case reflect.Float32, reflect.Float64:
- return v.Float() == 0
- case reflect.Interface, reflect.Ptr:
- return v.IsNil()
- }
- return false
-}
diff --git a/vendor/golang.org/x/net/webdav/internal/xml/read.go b/vendor/golang.org/x/net/webdav/internal/xml/read.go
deleted file mode 100644
index 4089056..0000000
--- a/vendor/golang.org/x/net/webdav/internal/xml/read.go
+++ /dev/null
@@ -1,692 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package xml
-
-import (
- "bytes"
- "encoding"
- "errors"
- "fmt"
- "reflect"
- "strconv"
- "strings"
-)
-
-// BUG(rsc): Mapping between XML elements and data structures is inherently flawed:
-// an XML element is an order-dependent collection of anonymous
-// values, while a data structure is an order-independent collection
-// of named values.
-// See package json for a textual representation more suitable
-// to data structures.
-
-// Unmarshal parses the XML-encoded data and stores the result in
-// the value pointed to by v, which must be an arbitrary struct,
-// slice, or string. Well-formed data that does not fit into v is
-// discarded.
-//
-// Because Unmarshal uses the reflect package, it can only assign
-// to exported (upper case) fields. Unmarshal uses a case-sensitive
-// comparison to match XML element names to tag values and struct
-// field names.
-//
-// Unmarshal maps an XML element to a struct using the following rules.
-// In the rules, the tag of a field refers to the value associated with the
-// key 'xml' in the struct field's tag (see the example above).
-//
-// * If the struct has a field of type []byte or string with tag
-// ",innerxml", Unmarshal accumulates the raw XML nested inside the
-// element in that field. The rest of the rules still apply.
-//
-// * If the struct has a field named XMLName of type xml.Name,
-// Unmarshal records the element name in that field.
-//
-// * If the XMLName field has an associated tag of the form
-// "name" or "namespace-URL name", the XML element must have
-// the given name (and, optionally, name space) or else Unmarshal
-// returns an error.
-//
-// * If the XML element has an attribute whose name matches a
-// struct field name with an associated tag containing ",attr" or
-// the explicit name in a struct field tag of the form "name,attr",
-// Unmarshal records the attribute value in that field.
-//
-// * If the XML element contains character data, that data is
-// accumulated in the first struct field that has tag ",chardata".
-// The struct field may have type []byte or string.
-// If there is no such field, the character data is discarded.
-//
-// * If the XML element contains comments, they are accumulated in
-// the first struct field that has tag ",comment". The struct
-// field may have type []byte or string. If there is no such
-// field, the comments are discarded.
-//
-// * If the XML element contains a sub-element whose name matches
-// the prefix of a tag formatted as "a" or "a>b>c", unmarshal
-// will descend into the XML structure looking for elements with the
-// given names, and will map the innermost elements to that struct
-// field. A tag starting with ">" is equivalent to one starting
-// with the field name followed by ">".
-//
-// * If the XML element contains a sub-element whose name matches
-// a struct field's XMLName tag and the struct field has no
-// explicit name tag as per the previous rule, unmarshal maps
-// the sub-element to that struct field.
-//
-// * If the XML element contains a sub-element whose name matches a
-// field without any mode flags (",attr", ",chardata", etc), Unmarshal
-// maps the sub-element to that struct field.
-//
-// * If the XML element contains a sub-element that hasn't matched any
-// of the above rules and the struct has a field with tag ",any",
-// unmarshal maps the sub-element to that struct field.
-//
-// * An anonymous struct field is handled as if the fields of its
-// value were part of the outer struct.
-//
-// * A struct field with tag "-" is never unmarshalled into.
-//
-// Unmarshal maps an XML element to a string or []byte by saving the
-// concatenation of that element's character data in the string or
-// []byte. The saved []byte is never nil.
-//
-// Unmarshal maps an attribute value to a string or []byte by saving
-// the value in the string or slice.
-//
-// Unmarshal maps an XML element to a slice by extending the length of
-// the slice and mapping the element to the newly created value.
-//
-// Unmarshal maps an XML element or attribute value to a bool by
-// setting it to the boolean value represented by the string.
-//
-// Unmarshal maps an XML element or attribute value to an integer or
-// floating-point field by setting the field to the result of
-// interpreting the string value in decimal. There is no check for
-// overflow.
-//
-// Unmarshal maps an XML element to an xml.Name by recording the
-// element name.
-//
-// Unmarshal maps an XML element to a pointer by setting the pointer
-// to a freshly allocated value and then mapping the element to that value.
-//
-func Unmarshal(data []byte, v interface{}) error {
- return NewDecoder(bytes.NewReader(data)).Decode(v)
-}
-
-// Decode works like xml.Unmarshal, except it reads the decoder
-// stream to find the start element.
-func (d *Decoder) Decode(v interface{}) error {
- return d.DecodeElement(v, nil)
-}
-
-// DecodeElement works like xml.Unmarshal except that it takes
-// a pointer to the start XML element to decode into v.
-// It is useful when a client reads some raw XML tokens itself
-// but also wants to defer to Unmarshal for some elements.
-func (d *Decoder) DecodeElement(v interface{}, start *StartElement) error {
- val := reflect.ValueOf(v)
- if val.Kind() != reflect.Ptr {
- return errors.New("non-pointer passed to Unmarshal")
- }
- return d.unmarshal(val.Elem(), start)
-}
-
-// An UnmarshalError represents an error in the unmarshalling process.
-type UnmarshalError string
-
-func (e UnmarshalError) Error() string { return string(e) }
-
-// Unmarshaler is the interface implemented by objects that can unmarshal
-// an XML element description of themselves.
-//
-// UnmarshalXML decodes a single XML element
-// beginning with the given start element.
-// If it returns an error, the outer call to Unmarshal stops and
-// returns that error.
-// UnmarshalXML must consume exactly one XML element.
-// One common implementation strategy is to unmarshal into
-// a separate value with a layout matching the expected XML
-// using d.DecodeElement, and then to copy the data from
-// that value into the receiver.
-// Another common strategy is to use d.Token to process the
-// XML object one token at a time.
-// UnmarshalXML may not use d.RawToken.
-type Unmarshaler interface {
- UnmarshalXML(d *Decoder, start StartElement) error
-}
-
-// UnmarshalerAttr is the interface implemented by objects that can unmarshal
-// an XML attribute description of themselves.
-//
-// UnmarshalXMLAttr decodes a single XML attribute.
-// If it returns an error, the outer call to Unmarshal stops and
-// returns that error.
-// UnmarshalXMLAttr is used only for struct fields with the
-// "attr" option in the field tag.
-type UnmarshalerAttr interface {
- UnmarshalXMLAttr(attr Attr) error
-}
-
-// receiverType returns the receiver type to use in an expression like "%s.MethodName".
-func receiverType(val interface{}) string {
- t := reflect.TypeOf(val)
- if t.Name() != "" {
- return t.String()
- }
- return "(" + t.String() + ")"
-}
-
-// unmarshalInterface unmarshals a single XML element into val.
-// start is the opening tag of the element.
-func (p *Decoder) unmarshalInterface(val Unmarshaler, start *StartElement) error {
- // Record that decoder must stop at end tag corresponding to start.
- p.pushEOF()
-
- p.unmarshalDepth++
- err := val.UnmarshalXML(p, *start)
- p.unmarshalDepth--
- if err != nil {
- p.popEOF()
- return err
- }
-
- if !p.popEOF() {
- return fmt.Errorf("xml: %s.UnmarshalXML did not consume entire <%s> element", receiverType(val), start.Name.Local)
- }
-
- return nil
-}
-
-// unmarshalTextInterface unmarshals a single XML element into val.
-// The chardata contained in the element (but not its children)
-// is passed to the text unmarshaler.
-func (p *Decoder) unmarshalTextInterface(val encoding.TextUnmarshaler, start *StartElement) error {
- var buf []byte
- depth := 1
- for depth > 0 {
- t, err := p.Token()
- if err != nil {
- return err
- }
- switch t := t.(type) {
- case CharData:
- if depth == 1 {
- buf = append(buf, t...)
- }
- case StartElement:
- depth++
- case EndElement:
- depth--
- }
- }
- return val.UnmarshalText(buf)
-}
-
-// unmarshalAttr unmarshals a single XML attribute into val.
-func (p *Decoder) unmarshalAttr(val reflect.Value, attr Attr) error {
- if val.Kind() == reflect.Ptr {
- if val.IsNil() {
- val.Set(reflect.New(val.Type().Elem()))
- }
- val = val.Elem()
- }
-
- if val.CanInterface() && val.Type().Implements(unmarshalerAttrType) {
- // This is an unmarshaler with a non-pointer receiver,
- // so it's likely to be incorrect, but we do what we're told.
- return val.Interface().(UnmarshalerAttr).UnmarshalXMLAttr(attr)
- }
- if val.CanAddr() {
- pv := val.Addr()
- if pv.CanInterface() && pv.Type().Implements(unmarshalerAttrType) {
- return pv.Interface().(UnmarshalerAttr).UnmarshalXMLAttr(attr)
- }
- }
-
- // Not an UnmarshalerAttr; try encoding.TextUnmarshaler.
- if val.CanInterface() && val.Type().Implements(textUnmarshalerType) {
- // This is an unmarshaler with a non-pointer receiver,
- // so it's likely to be incorrect, but we do what we're told.
- return val.Interface().(encoding.TextUnmarshaler).UnmarshalText([]byte(attr.Value))
- }
- if val.CanAddr() {
- pv := val.Addr()
- if pv.CanInterface() && pv.Type().Implements(textUnmarshalerType) {
- return pv.Interface().(encoding.TextUnmarshaler).UnmarshalText([]byte(attr.Value))
- }
- }
-
- copyValue(val, []byte(attr.Value))
- return nil
-}
-
-var (
- unmarshalerType = reflect.TypeOf((*Unmarshaler)(nil)).Elem()
- unmarshalerAttrType = reflect.TypeOf((*UnmarshalerAttr)(nil)).Elem()
- textUnmarshalerType = reflect.TypeOf((*encoding.TextUnmarshaler)(nil)).Elem()
-)
-
-// Unmarshal a single XML element into val.
-func (p *Decoder) unmarshal(val reflect.Value, start *StartElement) error {
- // Find start element if we need it.
- if start == nil {
- for {
- tok, err := p.Token()
- if err != nil {
- return err
- }
- if t, ok := tok.(StartElement); ok {
- start = &t
- break
- }
- }
- }
-
- // Load value from interface, but only if the result will be
- // usefully addressable.
- if val.Kind() == reflect.Interface && !val.IsNil() {
- e := val.Elem()
- if e.Kind() == reflect.Ptr && !e.IsNil() {
- val = e
- }
- }
-
- if val.Kind() == reflect.Ptr {
- if val.IsNil() {
- val.Set(reflect.New(val.Type().Elem()))
- }
- val = val.Elem()
- }
-
- if val.CanInterface() && val.Type().Implements(unmarshalerType) {
- // This is an unmarshaler with a non-pointer receiver,
- // so it's likely to be incorrect, but we do what we're told.
- return p.unmarshalInterface(val.Interface().(Unmarshaler), start)
- }
-
- if val.CanAddr() {
- pv := val.Addr()
- if pv.CanInterface() && pv.Type().Implements(unmarshalerType) {
- return p.unmarshalInterface(pv.Interface().(Unmarshaler), start)
- }
- }
-
- if val.CanInterface() && val.Type().Implements(textUnmarshalerType) {
- return p.unmarshalTextInterface(val.Interface().(encoding.TextUnmarshaler), start)
- }
-
- if val.CanAddr() {
- pv := val.Addr()
- if pv.CanInterface() && pv.Type().Implements(textUnmarshalerType) {
- return p.unmarshalTextInterface(pv.Interface().(encoding.TextUnmarshaler), start)
- }
- }
-
- var (
- data []byte
- saveData reflect.Value
- comment []byte
- saveComment reflect.Value
- saveXML reflect.Value
- saveXMLIndex int
- saveXMLData []byte
- saveAny reflect.Value
- sv reflect.Value
- tinfo *typeInfo
- err error
- )
-
- switch v := val; v.Kind() {
- default:
- return errors.New("unknown type " + v.Type().String())
-
- case reflect.Interface:
- // TODO: For now, simply ignore the field. In the near
- // future we may choose to unmarshal the start
- // element on it, if not nil.
- return p.Skip()
-
- case reflect.Slice:
- typ := v.Type()
- if typ.Elem().Kind() == reflect.Uint8 {
- // []byte
- saveData = v
- break
- }
-
- // Slice of element values.
- // Grow slice.
- n := v.Len()
- if n >= v.Cap() {
- ncap := 2 * n
- if ncap < 4 {
- ncap = 4
- }
- new := reflect.MakeSlice(typ, n, ncap)
- reflect.Copy(new, v)
- v.Set(new)
- }
- v.SetLen(n + 1)
-
- // Recur to read element into slice.
- if err := p.unmarshal(v.Index(n), start); err != nil {
- v.SetLen(n)
- return err
- }
- return nil
-
- case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr, reflect.String:
- saveData = v
-
- case reflect.Struct:
- typ := v.Type()
- if typ == nameType {
- v.Set(reflect.ValueOf(start.Name))
- break
- }
-
- sv = v
- tinfo, err = getTypeInfo(typ)
- if err != nil {
- return err
- }
-
- // Validate and assign element name.
- if tinfo.xmlname != nil {
- finfo := tinfo.xmlname
- if finfo.name != "" && finfo.name != start.Name.Local {
- return UnmarshalError("expected element type <" + finfo.name + "> but have <" + start.Name.Local + ">")
- }
- if finfo.xmlns != "" && finfo.xmlns != start.Name.Space {
- e := "expected element <" + finfo.name + "> in name space " + finfo.xmlns + " but have "
- if start.Name.Space == "" {
- e += "no name space"
- } else {
- e += start.Name.Space
- }
- return UnmarshalError(e)
- }
- fv := finfo.value(sv)
- if _, ok := fv.Interface().(Name); ok {
- fv.Set(reflect.ValueOf(start.Name))
- }
- }
-
- // Assign attributes.
- // Also, determine whether we need to save character data or comments.
- for i := range tinfo.fields {
- finfo := &tinfo.fields[i]
- switch finfo.flags & fMode {
- case fAttr:
- strv := finfo.value(sv)
- // Look for attribute.
- for _, a := range start.Attr {
- if a.Name.Local == finfo.name && (finfo.xmlns == "" || finfo.xmlns == a.Name.Space) {
- if err := p.unmarshalAttr(strv, a); err != nil {
- return err
- }
- break
- }
- }
-
- case fCharData:
- if !saveData.IsValid() {
- saveData = finfo.value(sv)
- }
-
- case fComment:
- if !saveComment.IsValid() {
- saveComment = finfo.value(sv)
- }
-
- case fAny, fAny | fElement:
- if !saveAny.IsValid() {
- saveAny = finfo.value(sv)
- }
-
- case fInnerXml:
- if !saveXML.IsValid() {
- saveXML = finfo.value(sv)
- if p.saved == nil {
- saveXMLIndex = 0
- p.saved = new(bytes.Buffer)
- } else {
- saveXMLIndex = p.savedOffset()
- }
- }
- }
- }
- }
-
- // Find end element.
- // Process sub-elements along the way.
-Loop:
- for {
- var savedOffset int
- if saveXML.IsValid() {
- savedOffset = p.savedOffset()
- }
- tok, err := p.Token()
- if err != nil {
- return err
- }
- switch t := tok.(type) {
- case StartElement:
- consumed := false
- if sv.IsValid() {
- consumed, err = p.unmarshalPath(tinfo, sv, nil, &t)
- if err != nil {
- return err
- }
- if !consumed && saveAny.IsValid() {
- consumed = true
- if err := p.unmarshal(saveAny, &t); err != nil {
- return err
- }
- }
- }
- if !consumed {
- if err := p.Skip(); err != nil {
- return err
- }
- }
-
- case EndElement:
- if saveXML.IsValid() {
- saveXMLData = p.saved.Bytes()[saveXMLIndex:savedOffset]
- if saveXMLIndex == 0 {
- p.saved = nil
- }
- }
- break Loop
-
- case CharData:
- if saveData.IsValid() {
- data = append(data, t...)
- }
-
- case Comment:
- if saveComment.IsValid() {
- comment = append(comment, t...)
- }
- }
- }
-
- if saveData.IsValid() && saveData.CanInterface() && saveData.Type().Implements(textUnmarshalerType) {
- if err := saveData.Interface().(encoding.TextUnmarshaler).UnmarshalText(data); err != nil {
- return err
- }
- saveData = reflect.Value{}
- }
-
- if saveData.IsValid() && saveData.CanAddr() {
- pv := saveData.Addr()
- if pv.CanInterface() && pv.Type().Implements(textUnmarshalerType) {
- if err := pv.Interface().(encoding.TextUnmarshaler).UnmarshalText(data); err != nil {
- return err
- }
- saveData = reflect.Value{}
- }
- }
-
- if err := copyValue(saveData, data); err != nil {
- return err
- }
-
- switch t := saveComment; t.Kind() {
- case reflect.String:
- t.SetString(string(comment))
- case reflect.Slice:
- t.Set(reflect.ValueOf(comment))
- }
-
- switch t := saveXML; t.Kind() {
- case reflect.String:
- t.SetString(string(saveXMLData))
- case reflect.Slice:
- t.Set(reflect.ValueOf(saveXMLData))
- }
-
- return nil
-}
-
-func copyValue(dst reflect.Value, src []byte) (err error) {
- dst0 := dst
-
- if dst.Kind() == reflect.Ptr {
- if dst.IsNil() {
- dst.Set(reflect.New(dst.Type().Elem()))
- }
- dst = dst.Elem()
- }
-
- // Save accumulated data.
- switch dst.Kind() {
- case reflect.Invalid:
- // Probably a comment.
- default:
- return errors.New("cannot unmarshal into " + dst0.Type().String())
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- itmp, err := strconv.ParseInt(string(src), 10, dst.Type().Bits())
- if err != nil {
- return err
- }
- dst.SetInt(itmp)
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- utmp, err := strconv.ParseUint(string(src), 10, dst.Type().Bits())
- if err != nil {
- return err
- }
- dst.SetUint(utmp)
- case reflect.Float32, reflect.Float64:
- ftmp, err := strconv.ParseFloat(string(src), dst.Type().Bits())
- if err != nil {
- return err
- }
- dst.SetFloat(ftmp)
- case reflect.Bool:
- value, err := strconv.ParseBool(strings.TrimSpace(string(src)))
- if err != nil {
- return err
- }
- dst.SetBool(value)
- case reflect.String:
- dst.SetString(string(src))
- case reflect.Slice:
- if len(src) == 0 {
- // non-nil to flag presence
- src = []byte{}
- }
- dst.SetBytes(src)
- }
- return nil
-}
-
-// unmarshalPath walks down an XML structure looking for wanted
-// paths, and calls unmarshal on them.
-// The consumed result tells whether XML elements have been consumed
-// from the Decoder until start's matching end element, or if it's
-// still untouched because start is uninteresting for sv's fields.
-func (p *Decoder) unmarshalPath(tinfo *typeInfo, sv reflect.Value, parents []string, start *StartElement) (consumed bool, err error) {
- recurse := false
-Loop:
- for i := range tinfo.fields {
- finfo := &tinfo.fields[i]
- if finfo.flags&fElement == 0 || len(finfo.parents) < len(parents) || finfo.xmlns != "" && finfo.xmlns != start.Name.Space {
- continue
- }
- for j := range parents {
- if parents[j] != finfo.parents[j] {
- continue Loop
- }
- }
- if len(finfo.parents) == len(parents) && finfo.name == start.Name.Local {
- // It's a perfect match, unmarshal the field.
- return true, p.unmarshal(finfo.value(sv), start)
- }
- if len(finfo.parents) > len(parents) && finfo.parents[len(parents)] == start.Name.Local {
- // It's a prefix for the field. Break and recurse
- // since it's not ok for one field path to be itself
- // the prefix for another field path.
- recurse = true
-
- // We can reuse the same slice as long as we
- // don't try to append to it.
- parents = finfo.parents[:len(parents)+1]
- break
- }
- }
- if !recurse {
- // We have no business with this element.
- return false, nil
- }
- // The element is not a perfect match for any field, but one
- // or more fields have the path to this element as a parent
- // prefix. Recurse and attempt to match these.
- for {
- var tok Token
- tok, err = p.Token()
- if err != nil {
- return true, err
- }
- switch t := tok.(type) {
- case StartElement:
- consumed2, err := p.unmarshalPath(tinfo, sv, parents, &t)
- if err != nil {
- return true, err
- }
- if !consumed2 {
- if err := p.Skip(); err != nil {
- return true, err
- }
- }
- case EndElement:
- return true, nil
- }
- }
-}
-
-// Skip reads tokens until it has consumed the end element
-// matching the most recent start element already consumed.
-// It recurs if it encounters a start element, so it can be used to
-// skip nested structures.
-// It returns nil if it finds an end element matching the start
-// element; otherwise it returns an error describing the problem.
-func (d *Decoder) Skip() error {
- for {
- tok, err := d.Token()
- if err != nil {
- return err
- }
- switch tok.(type) {
- case StartElement:
- if err := d.Skip(); err != nil {
- return err
- }
- case EndElement:
- return nil
- }
- }
-}
diff --git a/vendor/golang.org/x/net/webdav/internal/xml/typeinfo.go b/vendor/golang.org/x/net/webdav/internal/xml/typeinfo.go
deleted file mode 100644
index fdde288..0000000
--- a/vendor/golang.org/x/net/webdav/internal/xml/typeinfo.go
+++ /dev/null
@@ -1,371 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package xml
-
-import (
- "fmt"
- "reflect"
- "strings"
- "sync"
-)
-
-// typeInfo holds details for the xml representation of a type.
-type typeInfo struct {
- xmlname *fieldInfo
- fields []fieldInfo
-}
-
-// fieldInfo holds details for the xml representation of a single field.
-type fieldInfo struct {
- idx []int
- name string
- xmlns string
- flags fieldFlags
- parents []string
-}
-
-type fieldFlags int
-
-const (
- fElement fieldFlags = 1 << iota
- fAttr
- fCharData
- fInnerXml
- fComment
- fAny
-
- fOmitEmpty
-
- fMode = fElement | fAttr | fCharData | fInnerXml | fComment | fAny
-)
-
-var tinfoMap = make(map[reflect.Type]*typeInfo)
-var tinfoLock sync.RWMutex
-
-var nameType = reflect.TypeOf(Name{})
-
-// getTypeInfo returns the typeInfo structure with details necessary
-// for marshalling and unmarshalling typ.
-func getTypeInfo(typ reflect.Type) (*typeInfo, error) {
- tinfoLock.RLock()
- tinfo, ok := tinfoMap[typ]
- tinfoLock.RUnlock()
- if ok {
- return tinfo, nil
- }
- tinfo = &typeInfo{}
- if typ.Kind() == reflect.Struct && typ != nameType {
- n := typ.NumField()
- for i := 0; i < n; i++ {
- f := typ.Field(i)
- if f.PkgPath != "" || f.Tag.Get("xml") == "-" {
- continue // Private field
- }
-
- // For embedded structs, embed its fields.
- if f.Anonymous {
- t := f.Type
- if t.Kind() == reflect.Ptr {
- t = t.Elem()
- }
- if t.Kind() == reflect.Struct {
- inner, err := getTypeInfo(t)
- if err != nil {
- return nil, err
- }
- if tinfo.xmlname == nil {
- tinfo.xmlname = inner.xmlname
- }
- for _, finfo := range inner.fields {
- finfo.idx = append([]int{i}, finfo.idx...)
- if err := addFieldInfo(typ, tinfo, &finfo); err != nil {
- return nil, err
- }
- }
- continue
- }
- }
-
- finfo, err := structFieldInfo(typ, &f)
- if err != nil {
- return nil, err
- }
-
- if f.Name == "XMLName" {
- tinfo.xmlname = finfo
- continue
- }
-
- // Add the field if it doesn't conflict with other fields.
- if err := addFieldInfo(typ, tinfo, finfo); err != nil {
- return nil, err
- }
- }
- }
- tinfoLock.Lock()
- tinfoMap[typ] = tinfo
- tinfoLock.Unlock()
- return tinfo, nil
-}
-
-// structFieldInfo builds and returns a fieldInfo for f.
-func structFieldInfo(typ reflect.Type, f *reflect.StructField) (*fieldInfo, error) {
- finfo := &fieldInfo{idx: f.Index}
-
- // Split the tag from the xml namespace if necessary.
- tag := f.Tag.Get("xml")
- if i := strings.Index(tag, " "); i >= 0 {
- finfo.xmlns, tag = tag[:i], tag[i+1:]
- }
-
- // Parse flags.
- tokens := strings.Split(tag, ",")
- if len(tokens) == 1 {
- finfo.flags = fElement
- } else {
- tag = tokens[0]
- for _, flag := range tokens[1:] {
- switch flag {
- case "attr":
- finfo.flags |= fAttr
- case "chardata":
- finfo.flags |= fCharData
- case "innerxml":
- finfo.flags |= fInnerXml
- case "comment":
- finfo.flags |= fComment
- case "any":
- finfo.flags |= fAny
- case "omitempty":
- finfo.flags |= fOmitEmpty
- }
- }
-
- // Validate the flags used.
- valid := true
- switch mode := finfo.flags & fMode; mode {
- case 0:
- finfo.flags |= fElement
- case fAttr, fCharData, fInnerXml, fComment, fAny:
- if f.Name == "XMLName" || tag != "" && mode != fAttr {
- valid = false
- }
- default:
- // This will also catch multiple modes in a single field.
- valid = false
- }
- if finfo.flags&fMode == fAny {
- finfo.flags |= fElement
- }
- if finfo.flags&fOmitEmpty != 0 && finfo.flags&(fElement|fAttr) == 0 {
- valid = false
- }
- if !valid {
- return nil, fmt.Errorf("xml: invalid tag in field %s of type %s: %q",
- f.Name, typ, f.Tag.Get("xml"))
- }
- }
-
- // Use of xmlns without a name is not allowed.
- if finfo.xmlns != "" && tag == "" {
- return nil, fmt.Errorf("xml: namespace without name in field %s of type %s: %q",
- f.Name, typ, f.Tag.Get("xml"))
- }
-
- if f.Name == "XMLName" {
- // The XMLName field records the XML element name. Don't
- // process it as usual because its name should default to
- // empty rather than to the field name.
- finfo.name = tag
- return finfo, nil
- }
-
- if tag == "" {
- // If the name part of the tag is completely empty, get
- // default from XMLName of underlying struct if feasible,
- // or field name otherwise.
- if xmlname := lookupXMLName(f.Type); xmlname != nil {
- finfo.xmlns, finfo.name = xmlname.xmlns, xmlname.name
- } else {
- finfo.name = f.Name
- }
- return finfo, nil
- }
-
- if finfo.xmlns == "" && finfo.flags&fAttr == 0 {
- // If it's an element no namespace specified, get the default
- // from the XMLName of enclosing struct if possible.
- if xmlname := lookupXMLName(typ); xmlname != nil {
- finfo.xmlns = xmlname.xmlns
- }
- }
-
- // Prepare field name and parents.
- parents := strings.Split(tag, ">")
- if parents[0] == "" {
- parents[0] = f.Name
- }
- if parents[len(parents)-1] == "" {
- return nil, fmt.Errorf("xml: trailing '>' in field %s of type %s", f.Name, typ)
- }
- finfo.name = parents[len(parents)-1]
- if len(parents) > 1 {
- if (finfo.flags & fElement) == 0 {
- return nil, fmt.Errorf("xml: %s chain not valid with %s flag", tag, strings.Join(tokens[1:], ","))
- }
- finfo.parents = parents[:len(parents)-1]
- }
-
- // If the field type has an XMLName field, the names must match
- // so that the behavior of both marshalling and unmarshalling
- // is straightforward and unambiguous.
- if finfo.flags&fElement != 0 {
- ftyp := f.Type
- xmlname := lookupXMLName(ftyp)
- if xmlname != nil && xmlname.name != finfo.name {
- return nil, fmt.Errorf("xml: name %q in tag of %s.%s conflicts with name %q in %s.XMLName",
- finfo.name, typ, f.Name, xmlname.name, ftyp)
- }
- }
- return finfo, nil
-}
-
-// lookupXMLName returns the fieldInfo for typ's XMLName field
-// in case it exists and has a valid xml field tag, otherwise
-// it returns nil.
-func lookupXMLName(typ reflect.Type) (xmlname *fieldInfo) {
- for typ.Kind() == reflect.Ptr {
- typ = typ.Elem()
- }
- if typ.Kind() != reflect.Struct {
- return nil
- }
- for i, n := 0, typ.NumField(); i < n; i++ {
- f := typ.Field(i)
- if f.Name != "XMLName" {
- continue
- }
- finfo, err := structFieldInfo(typ, &f)
- if finfo.name != "" && err == nil {
- return finfo
- }
- // Also consider errors as a non-existent field tag
- // and let getTypeInfo itself report the error.
- break
- }
- return nil
-}
-
-func min(a, b int) int {
- if a <= b {
- return a
- }
- return b
-}
-
-// addFieldInfo adds finfo to tinfo.fields if there are no
-// conflicts, or if conflicts arise from previous fields that were
-// obtained from deeper embedded structures than finfo. In the latter
-// case, the conflicting entries are dropped.
-// A conflict occurs when the path (parent + name) to a field is
-// itself a prefix of another path, or when two paths match exactly.
-// It is okay for field paths to share a common, shorter prefix.
-func addFieldInfo(typ reflect.Type, tinfo *typeInfo, newf *fieldInfo) error {
- var conflicts []int
-Loop:
- // First, figure all conflicts. Most working code will have none.
- for i := range tinfo.fields {
- oldf := &tinfo.fields[i]
- if oldf.flags&fMode != newf.flags&fMode {
- continue
- }
- if oldf.xmlns != "" && newf.xmlns != "" && oldf.xmlns != newf.xmlns {
- continue
- }
- minl := min(len(newf.parents), len(oldf.parents))
- for p := 0; p < minl; p++ {
- if oldf.parents[p] != newf.parents[p] {
- continue Loop
- }
- }
- if len(oldf.parents) > len(newf.parents) {
- if oldf.parents[len(newf.parents)] == newf.name {
- conflicts = append(conflicts, i)
- }
- } else if len(oldf.parents) < len(newf.parents) {
- if newf.parents[len(oldf.parents)] == oldf.name {
- conflicts = append(conflicts, i)
- }
- } else {
- if newf.name == oldf.name {
- conflicts = append(conflicts, i)
- }
- }
- }
- // Without conflicts, add the new field and return.
- if conflicts == nil {
- tinfo.fields = append(tinfo.fields, *newf)
- return nil
- }
-
- // If any conflict is shallower, ignore the new field.
- // This matches the Go field resolution on embedding.
- for _, i := range conflicts {
- if len(tinfo.fields[i].idx) < len(newf.idx) {
- return nil
- }
- }
-
- // Otherwise, if any of them is at the same depth level, it's an error.
- for _, i := range conflicts {
- oldf := &tinfo.fields[i]
- if len(oldf.idx) == len(newf.idx) {
- f1 := typ.FieldByIndex(oldf.idx)
- f2 := typ.FieldByIndex(newf.idx)
- return &TagPathError{typ, f1.Name, f1.Tag.Get("xml"), f2.Name, f2.Tag.Get("xml")}
- }
- }
-
- // Otherwise, the new field is shallower, and thus takes precedence,
- // so drop the conflicting fields from tinfo and append the new one.
- for c := len(conflicts) - 1; c >= 0; c-- {
- i := conflicts[c]
- copy(tinfo.fields[i:], tinfo.fields[i+1:])
- tinfo.fields = tinfo.fields[:len(tinfo.fields)-1]
- }
- tinfo.fields = append(tinfo.fields, *newf)
- return nil
-}
-
-// A TagPathError represents an error in the unmarshalling process
-// caused by the use of field tags with conflicting paths.
-type TagPathError struct {
- Struct reflect.Type
- Field1, Tag1 string
- Field2, Tag2 string
-}
-
-func (e *TagPathError) Error() string {
- return fmt.Sprintf("%s field %q with tag %q conflicts with field %q with tag %q", e.Struct, e.Field1, e.Tag1, e.Field2, e.Tag2)
-}
-
-// value returns v's field value corresponding to finfo.
-// It's equivalent to v.FieldByIndex(finfo.idx), but initializes
-// and dereferences pointers as necessary.
-func (finfo *fieldInfo) value(v reflect.Value) reflect.Value {
- for i, x := range finfo.idx {
- if i > 0 {
- t := v.Type()
- if t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct {
- if v.IsNil() {
- v.Set(reflect.New(v.Type().Elem()))
- }
- v = v.Elem()
- }
- }
- v = v.Field(x)
- }
- return v
-}
diff --git a/vendor/golang.org/x/net/webdav/internal/xml/xml.go b/vendor/golang.org/x/net/webdav/internal/xml/xml.go
deleted file mode 100644
index 5b79cbe..0000000
--- a/vendor/golang.org/x/net/webdav/internal/xml/xml.go
+++ /dev/null
@@ -1,1998 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package xml implements a simple XML 1.0 parser that
-// understands XML name spaces.
-package xml
-
-// References:
-// Annotated XML spec: http://www.xml.com/axml/testaxml.htm
-// XML name spaces: http://www.w3.org/TR/REC-xml-names/
-
-// TODO(rsc):
-// Test error handling.
-
-import (
- "bufio"
- "bytes"
- "errors"
- "fmt"
- "io"
- "strconv"
- "strings"
- "unicode"
- "unicode/utf8"
-)
-
-// A SyntaxError represents a syntax error in the XML input stream.
-type SyntaxError struct {
- Msg string
- Line int
-}
-
-func (e *SyntaxError) Error() string {
- return "XML syntax error on line " + strconv.Itoa(e.Line) + ": " + e.Msg
-}
-
-// A Name represents an XML name (Local) annotated with a name space
-// identifier (Space). In tokens returned by Decoder.Token, the Space
-// identifier is given as a canonical URL, not the short prefix used in
-// the document being parsed.
-//
-// As a special case, XML namespace declarations will use the literal
-// string "xmlns" for the Space field instead of the fully resolved URL.
-// See Encoder.EncodeToken for more information on namespace encoding
-// behaviour.
-type Name struct {
- Space, Local string
-}
-
-// isNamespace reports whether the name is a namespace-defining name.
-func (name Name) isNamespace() bool {
- return name.Local == "xmlns" || name.Space == "xmlns"
-}
-
-// An Attr represents an attribute in an XML element (Name=Value).
-type Attr struct {
- Name Name
- Value string
-}
-
-// A Token is an interface holding one of the token types:
-// StartElement, EndElement, CharData, Comment, ProcInst, or Directive.
-type Token interface{}
-
-// A StartElement represents an XML start element.
-type StartElement struct {
- Name Name
- Attr []Attr
-}
-
-func (e StartElement) Copy() StartElement {
- attrs := make([]Attr, len(e.Attr))
- copy(attrs, e.Attr)
- e.Attr = attrs
- return e
-}
-
-// End returns the corresponding XML end element.
-func (e StartElement) End() EndElement {
- return EndElement{e.Name}
-}
-
-// setDefaultNamespace sets the namespace of the element
-// as the default for all elements contained within it.
-func (e *StartElement) setDefaultNamespace() {
- if e.Name.Space == "" {
- // If there's no namespace on the element, don't
- // set the default. Strictly speaking this might be wrong, as
- // we can't tell if the element had no namespace set
- // or was just using the default namespace.
- return
- }
- // Don't add a default name space if there's already one set.
- for _, attr := range e.Attr {
- if attr.Name.Space == "" && attr.Name.Local == "xmlns" {
- return
- }
- }
- e.Attr = append(e.Attr, Attr{
- Name: Name{
- Local: "xmlns",
- },
- Value: e.Name.Space,
- })
-}
-
-// An EndElement represents an XML end element.
-type EndElement struct {
- Name Name
-}
-
-// A CharData represents XML character data (raw text),
-// in which XML escape sequences have been replaced by
-// the characters they represent.
-type CharData []byte
-
-func makeCopy(b []byte) []byte {
- b1 := make([]byte, len(b))
- copy(b1, b)
- return b1
-}
-
-func (c CharData) Copy() CharData { return CharData(makeCopy(c)) }
-
-// A Comment represents an XML comment of the form <!--comment-->.
-// The bytes do not include the <!-- and --> comment markers.
-type Comment []byte
-
-func (c Comment) Copy() Comment { return Comment(makeCopy(c)) }
-
-// A ProcInst represents an XML processing instruction of the form <?target inst?>
-type ProcInst struct {
- Target string
- Inst []byte
-}
-
-func (p ProcInst) Copy() ProcInst {
- p.Inst = makeCopy(p.Inst)
- return p
-}
-
-// A Directive represents an XML directive of the form <!text>.
-// The bytes do not include the <! and > markers.
-type Directive []byte
-
-func (d Directive) Copy() Directive { return Directive(makeCopy(d)) }
-
-// CopyToken returns a copy of a Token.
-func CopyToken(t Token) Token {
- switch v := t.(type) {
- case CharData:
- return v.Copy()
- case Comment:
- return v.Copy()
- case Directive:
- return v.Copy()
- case ProcInst:
- return v.Copy()
- case StartElement:
- return v.Copy()
- }
- return t
-}
-
-// A Decoder represents an XML parser reading a particular input stream.
-// The parser assumes that its input is encoded in UTF-8.
-type Decoder struct {
- // Strict defaults to true, enforcing the requirements
- // of the XML specification.
- // If set to false, the parser allows input containing common
- // mistakes:
- // * If an element is missing an end tag, the parser invents
- // end tags as necessary to keep the return values from Token
- // properly balanced.
- // * In attribute values and character data, unknown or malformed
- // character entities (sequences beginning with &) are left alone.
- //
- // Setting:
- //
- // d.Strict = false;
- // d.AutoClose = HTMLAutoClose;
- // d.Entity = HTMLEntity
- //
- // creates a parser that can handle typical HTML.
- //
- // Strict mode does not enforce the requirements of the XML name spaces TR.
- // In particular it does not reject name space tags using undefined prefixes.
- // Such tags are recorded with the unknown prefix as the name space URL.
- Strict bool
-
- // When Strict == false, AutoClose indicates a set of elements to
- // consider closed immediately after they are opened, regardless
- // of whether an end element is present.
- AutoClose []string
-
- // Entity can be used to map non-standard entity names to string replacements.
- // The parser behaves as if these standard mappings are present in the map,
- // regardless of the actual map content:
- //
- // "lt": "<",
- // "gt": ">",
- // "amp": "&",
- // "apos": "'",
- // "quot": `"`,
- Entity map[string]string
-
- // CharsetReader, if non-nil, defines a function to generate
- // charset-conversion readers, converting from the provided
- // non-UTF-8 charset into UTF-8. If CharsetReader is nil or
- // returns an error, parsing stops with an error. One of the
- // the CharsetReader's result values must be non-nil.
- CharsetReader func(charset string, input io.Reader) (io.Reader, error)
-
- // DefaultSpace sets the default name space used for unadorned tags,
- // as if the entire XML stream were wrapped in an element containing
- // the attribute xmlns="DefaultSpace".
- DefaultSpace string
-
- r io.ByteReader
- buf bytes.Buffer
- saved *bytes.Buffer
- stk *stack
- free *stack
- needClose bool
- toClose Name
- nextToken Token
- nextByte int
- ns map[string]string
- err error
- line int
- offset int64
- unmarshalDepth int
-}
-
-// NewDecoder creates a new XML parser reading from r.
-// If r does not implement io.ByteReader, NewDecoder will
-// do its own buffering.
-func NewDecoder(r io.Reader) *Decoder {
- d := &Decoder{
- ns: make(map[string]string),
- nextByte: -1,
- line: 1,
- Strict: true,
- }
- d.switchToReader(r)
- return d
-}
-
-// Token returns the next XML token in the input stream.
-// At the end of the input stream, Token returns nil, io.EOF.
-//
-// Slices of bytes in the returned token data refer to the
-// parser's internal buffer and remain valid only until the next
-// call to Token. To acquire a copy of the bytes, call CopyToken
-// or the token's Copy method.
-//
-// Token expands self-closing elements such as <br/>
-// into separate start and end elements returned by successive calls.
-//
-// Token guarantees that the StartElement and EndElement
-// tokens it returns are properly nested and matched:
-// if Token encounters an unexpected end element,
-// it will return an error.
-//
-// Token implements XML name spaces as described by
-// http://www.w3.org/TR/REC-xml-names/. Each of the
-// Name structures contained in the Token has the Space
-// set to the URL identifying its name space when known.
-// If Token encounters an unrecognized name space prefix,
-// it uses the prefix as the Space rather than report an error.
-func (d *Decoder) Token() (t Token, err error) {
- if d.stk != nil && d.stk.kind == stkEOF {
- err = io.EOF
- return
- }
- if d.nextToken != nil {
- t = d.nextToken
- d.nextToken = nil
- } else if t, err = d.rawToken(); err != nil {
- return
- }
-
- if !d.Strict {
- if t1, ok := d.autoClose(t); ok {
- d.nextToken = t
- t = t1
- }
- }
- switch t1 := t.(type) {
- case StartElement:
- // In XML name spaces, the translations listed in the
- // attributes apply to the element name and
- // to the other attribute names, so process
- // the translations first.
- for _, a := range t1.Attr {
- if a.Name.Space == "xmlns" {
- v, ok := d.ns[a.Name.Local]
- d.pushNs(a.Name.Local, v, ok)
- d.ns[a.Name.Local] = a.Value
- }
- if a.Name.Space == "" && a.Name.Local == "xmlns" {
- // Default space for untagged names
- v, ok := d.ns[""]
- d.pushNs("", v, ok)
- d.ns[""] = a.Value
- }
- }
-
- d.translate(&t1.Name, true)
- for i := range t1.Attr {
- d.translate(&t1.Attr[i].Name, false)
- }
- d.pushElement(t1.Name)
- t = t1
-
- case EndElement:
- d.translate(&t1.Name, true)
- if !d.popElement(&t1) {
- return nil, d.err
- }
- t = t1
- }
- return
-}
-
-const xmlURL = "http://www.w3.org/XML/1998/namespace"
-
-// Apply name space translation to name n.
-// The default name space (for Space=="")
-// applies only to element names, not to attribute names.
-func (d *Decoder) translate(n *Name, isElementName bool) {
- switch {
- case n.Space == "xmlns":
- return
- case n.Space == "" && !isElementName:
- return
- case n.Space == "xml":
- n.Space = xmlURL
- case n.Space == "" && n.Local == "xmlns":
- return
- }
- if v, ok := d.ns[n.Space]; ok {
- n.Space = v
- } else if n.Space == "" {
- n.Space = d.DefaultSpace
- }
-}
-
-func (d *Decoder) switchToReader(r io.Reader) {
- // Get efficient byte at a time reader.
- // Assume that if reader has its own
- // ReadByte, it's efficient enough.
- // Otherwise, use bufio.
- if rb, ok := r.(io.ByteReader); ok {
- d.r = rb
- } else {
- d.r = bufio.NewReader(r)
- }
-}
-
-// Parsing state - stack holds old name space translations
-// and the current set of open elements. The translations to pop when
-// ending a given tag are *below* it on the stack, which is
-// more work but forced on us by XML.
-type stack struct {
- next *stack
- kind int
- name Name
- ok bool
-}
-
-const (
- stkStart = iota
- stkNs
- stkEOF
-)
-
-func (d *Decoder) push(kind int) *stack {
- s := d.free
- if s != nil {
- d.free = s.next
- } else {
- s = new(stack)
- }
- s.next = d.stk
- s.kind = kind
- d.stk = s
- return s
-}
-
-func (d *Decoder) pop() *stack {
- s := d.stk
- if s != nil {
- d.stk = s.next
- s.next = d.free
- d.free = s
- }
- return s
-}
-
-// Record that after the current element is finished
-// (that element is already pushed on the stack)
-// Token should return EOF until popEOF is called.
-func (d *Decoder) pushEOF() {
- // Walk down stack to find Start.
- // It might not be the top, because there might be stkNs
- // entries above it.
- start := d.stk
- for start.kind != stkStart {
- start = start.next
- }
- // The stkNs entries below a start are associated with that
- // element too; skip over them.
- for start.next != nil && start.next.kind == stkNs {
- start = start.next
- }
- s := d.free
- if s != nil {
- d.free = s.next
- } else {
- s = new(stack)
- }
- s.kind = stkEOF
- s.next = start.next
- start.next = s
-}
-
-// Undo a pushEOF.
-// The element must have been finished, so the EOF should be at the top of the stack.
-func (d *Decoder) popEOF() bool {
- if d.stk == nil || d.stk.kind != stkEOF {
- return false
- }
- d.pop()
- return true
-}
-
-// Record that we are starting an element with the given name.
-func (d *Decoder) pushElement(name Name) {
- s := d.push(stkStart)
- s.name = name
-}
-
-// Record that we are changing the value of ns[local].
-// The old value is url, ok.
-func (d *Decoder) pushNs(local string, url string, ok bool) {
- s := d.push(stkNs)
- s.name.Local = local
- s.name.Space = url
- s.ok = ok
-}
-
-// Creates a SyntaxError with the current line number.
-func (d *Decoder) syntaxError(msg string) error {
- return &SyntaxError{Msg: msg, Line: d.line}
-}
-
-// Record that we are ending an element with the given name.
-// The name must match the record at the top of the stack,
-// which must be a pushElement record.
-// After popping the element, apply any undo records from
-// the stack to restore the name translations that existed
-// before we saw this element.
-func (d *Decoder) popElement(t *EndElement) bool {
- s := d.pop()
- name := t.Name
- switch {
- case s == nil || s.kind != stkStart:
- d.err = d.syntaxError("unexpected end element </" + name.Local + ">")
- return false
- case s.name.Local != name.Local:
- if !d.Strict {
- d.needClose = true
- d.toClose = t.Name
- t.Name = s.name
- return true
- }
- d.err = d.syntaxError("element <" + s.name.Local + "> closed by </" + name.Local + ">")
- return false
- case s.name.Space != name.Space:
- d.err = d.syntaxError("element <" + s.name.Local + "> in space " + s.name.Space +
- "closed by </" + name.Local + "> in space " + name.Space)
- return false
- }
-
- // Pop stack until a Start or EOF is on the top, undoing the
- // translations that were associated with the element we just closed.
- for d.stk != nil && d.stk.kind != stkStart && d.stk.kind != stkEOF {
- s := d.pop()
- if s.ok {
- d.ns[s.name.Local] = s.name.Space
- } else {
- delete(d.ns, s.name.Local)
- }
- }
-
- return true
-}
-
-// If the top element on the stack is autoclosing and
-// t is not the end tag, invent the end tag.
-func (d *Decoder) autoClose(t Token) (Token, bool) {
- if d.stk == nil || d.stk.kind != stkStart {
- return nil, false
- }
- name := strings.ToLower(d.stk.name.Local)
- for _, s := range d.AutoClose {
- if strings.ToLower(s) == name {
- // This one should be auto closed if t doesn't close it.
- et, ok := t.(EndElement)
- if !ok || et.Name.Local != name {
- return EndElement{d.stk.name}, true
- }
- break
- }
- }
- return nil, false
-}
-
-var errRawToken = errors.New("xml: cannot use RawToken from UnmarshalXML method")
-
-// RawToken is like Token but does not verify that
-// start and end elements match and does not translate
-// name space prefixes to their corresponding URLs.
-func (d *Decoder) RawToken() (Token, error) {
- if d.unmarshalDepth > 0 {
- return nil, errRawToken
- }
- return d.rawToken()
-}
-
-func (d *Decoder) rawToken() (Token, error) {
- if d.err != nil {
- return nil, d.err
- }
- if d.needClose {
- // The last element we read was self-closing and
- // we returned just the StartElement half.
- // Return the EndElement half now.
- d.needClose = false
- return EndElement{d.toClose}, nil
- }
-
- b, ok := d.getc()
- if !ok {
- return nil, d.err
- }
-
- if b != '<' {
- // Text section.
- d.ungetc(b)
- data := d.text(-1, false)
- if data == nil {
- return nil, d.err
- }
- return CharData(data), nil
- }
-
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- switch b {
- case '/':
- // </: End element
- var name Name
- if name, ok = d.nsname(); !ok {
- if d.err == nil {
- d.err = d.syntaxError("expected element name after </")
- }
- return nil, d.err
- }
- d.space()
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b != '>' {
- d.err = d.syntaxError("invalid characters between </" + name.Local + " and >")
- return nil, d.err
- }
- return EndElement{name}, nil
-
- case '?':
- // <?: Processing instruction.
- var target string
- if target, ok = d.name(); !ok {
- if d.err == nil {
- d.err = d.syntaxError("expected target name after <?")
- }
- return nil, d.err
- }
- d.space()
- d.buf.Reset()
- var b0 byte
- for {
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- d.buf.WriteByte(b)
- if b0 == '?' && b == '>' {
- break
- }
- b0 = b
- }
- data := d.buf.Bytes()
- data = data[0 : len(data)-2] // chop ?>
-
- if target == "xml" {
- content := string(data)
- ver := procInst("version", content)
- if ver != "" && ver != "1.0" {
- d.err = fmt.Errorf("xml: unsupported version %q; only version 1.0 is supported", ver)
- return nil, d.err
- }
- enc := procInst("encoding", content)
- if enc != "" && enc != "utf-8" && enc != "UTF-8" {
- if d.CharsetReader == nil {
- d.err = fmt.Errorf("xml: encoding %q declared but Decoder.CharsetReader is nil", enc)
- return nil, d.err
- }
- newr, err := d.CharsetReader(enc, d.r.(io.Reader))
- if err != nil {
- d.err = fmt.Errorf("xml: opening charset %q: %v", enc, err)
- return nil, d.err
- }
- if newr == nil {
- panic("CharsetReader returned a nil Reader for charset " + enc)
- }
- d.switchToReader(newr)
- }
- }
- return ProcInst{target, data}, nil
-
- case '!':
- // <!: Maybe comment, maybe CDATA.
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- switch b {
- case '-': // <!-
- // Probably <!-- for a comment.
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b != '-' {
- d.err = d.syntaxError("invalid sequence <!- not part of <!--")
- return nil, d.err
- }
- // Look for terminator.
- d.buf.Reset()
- var b0, b1 byte
- for {
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- d.buf.WriteByte(b)
- if b0 == '-' && b1 == '-' && b == '>' {
- break
- }
- b0, b1 = b1, b
- }
- data := d.buf.Bytes()
- data = data[0 : len(data)-3] // chop -->
- return Comment(data), nil
-
- case '[': // <![
- // Probably <![CDATA[.
- for i := 0; i < 6; i++ {
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b != "CDATA["[i] {
- d.err = d.syntaxError("invalid <![ sequence")
- return nil, d.err
- }
- }
- // Have <![CDATA[. Read text until ]]>.
- data := d.text(-1, true)
- if data == nil {
- return nil, d.err
- }
- return CharData(data), nil
- }
-
- // Probably a directive: <!DOCTYPE ...>, <!ENTITY ...>, etc.
- // We don't care, but accumulate for caller. Quoted angle
- // brackets do not count for nesting.
- d.buf.Reset()
- d.buf.WriteByte(b)
- inquote := uint8(0)
- depth := 0
- for {
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if inquote == 0 && b == '>' && depth == 0 {
- break
- }
- HandleB:
- d.buf.WriteByte(b)
- switch {
- case b == inquote:
- inquote = 0
-
- case inquote != 0:
- // in quotes, no special action
-
- case b == '\'' || b == '"':
- inquote = b
-
- case b == '>' && inquote == 0:
- depth--
-
- case b == '<' && inquote == 0:
- // Look for <!-- to begin comment.
- s := "!--"
- for i := 0; i < len(s); i++ {
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b != s[i] {
- for j := 0; j < i; j++ {
- d.buf.WriteByte(s[j])
- }
- depth++
- goto HandleB
- }
- }
-
- // Remove < that was written above.
- d.buf.Truncate(d.buf.Len() - 1)
-
- // Look for terminator.
- var b0, b1 byte
- for {
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b0 == '-' && b1 == '-' && b == '>' {
- break
- }
- b0, b1 = b1, b
- }
- }
- }
- return Directive(d.buf.Bytes()), nil
- }
-
- // Must be an open element like <a href="foo">
- d.ungetc(b)
-
- var (
- name Name
- empty bool
- attr []Attr
- )
- if name, ok = d.nsname(); !ok {
- if d.err == nil {
- d.err = d.syntaxError("expected element name after <")
- }
- return nil, d.err
- }
-
- attr = []Attr{}
- for {
- d.space()
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b == '/' {
- empty = true
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b != '>' {
- d.err = d.syntaxError("expected /> in element")
- return nil, d.err
- }
- break
- }
- if b == '>' {
- break
- }
- d.ungetc(b)
-
- n := len(attr)
- if n >= cap(attr) {
- nCap := 2 * cap(attr)
- if nCap == 0 {
- nCap = 4
- }
- nattr := make([]Attr, n, nCap)
- copy(nattr, attr)
- attr = nattr
- }
- attr = attr[0 : n+1]
- a := &attr[n]
- if a.Name, ok = d.nsname(); !ok {
- if d.err == nil {
- d.err = d.syntaxError("expected attribute name in element")
- }
- return nil, d.err
- }
- d.space()
- if b, ok = d.mustgetc(); !ok {
- return nil, d.err
- }
- if b != '=' {
- if d.Strict {
- d.err = d.syntaxError("attribute name without = in element")
- return nil, d.err
- } else {
- d.ungetc(b)
- a.Value = a.Name.Local
- }
- } else {
- d.space()
- data := d.attrval()
- if data == nil {
- return nil, d.err
- }
- a.Value = string(data)
- }
- }
- if empty {
- d.needClose = true
- d.toClose = name
- }
- return StartElement{name, attr}, nil
-}
-
-func (d *Decoder) attrval() []byte {
- b, ok := d.mustgetc()
- if !ok {
- return nil
- }
- // Handle quoted attribute values
- if b == '"' || b == '\'' {
- return d.text(int(b), false)
- }
- // Handle unquoted attribute values for strict parsers
- if d.Strict {
- d.err = d.syntaxError("unquoted or missing attribute value in element")
- return nil
- }
- // Handle unquoted attribute values for unstrict parsers
- d.ungetc(b)
- d.buf.Reset()
- for {
- b, ok = d.mustgetc()
- if !ok {
- return nil
- }
- // http://www.w3.org/TR/REC-html40/intro/sgmltut.html#h-3.2.2
- if 'a' <= b && b <= 'z' || 'A' <= b && b <= 'Z' ||
- '0' <= b && b <= '9' || b == '_' || b == ':' || b == '-' {
- d.buf.WriteByte(b)
- } else {
- d.ungetc(b)
- break
- }
- }
- return d.buf.Bytes()
-}
-
-// Skip spaces if any
-func (d *Decoder) space() {
- for {
- b, ok := d.getc()
- if !ok {
- return
- }
- switch b {
- case ' ', '\r', '\n', '\t':
- default:
- d.ungetc(b)
- return
- }
- }
-}
-
-// Read a single byte.
-// If there is no byte to read, return ok==false
-// and leave the error in d.err.
-// Maintain line number.
-func (d *Decoder) getc() (b byte, ok bool) {
- if d.err != nil {
- return 0, false
- }
- if d.nextByte >= 0 {
- b = byte(d.nextByte)
- d.nextByte = -1
- } else {
- b, d.err = d.r.ReadByte()
- if d.err != nil {
- return 0, false
- }
- if d.saved != nil {
- d.saved.WriteByte(b)
- }
- }
- if b == '\n' {
- d.line++
- }
- d.offset++
- return b, true
-}
-
-// InputOffset returns the input stream byte offset of the current decoder position.
-// The offset gives the location of the end of the most recently returned token
-// and the beginning of the next token.
-func (d *Decoder) InputOffset() int64 {
- return d.offset
-}
-
-// Return saved offset.
-// If we did ungetc (nextByte >= 0), have to back up one.
-func (d *Decoder) savedOffset() int {
- n := d.saved.Len()
- if d.nextByte >= 0 {
- n--
- }
- return n
-}
-
-// Must read a single byte.
-// If there is no byte to read,
-// set d.err to SyntaxError("unexpected EOF")
-// and return ok==false
-func (d *Decoder) mustgetc() (b byte, ok bool) {
- if b, ok = d.getc(); !ok {
- if d.err == io.EOF {
- d.err = d.syntaxError("unexpected EOF")
- }
- }
- return
-}
-
-// Unread a single byte.
-func (d *Decoder) ungetc(b byte) {
- if b == '\n' {
- d.line--
- }
- d.nextByte = int(b)
- d.offset--
-}
-
-var entity = map[string]int{
- "lt": '<',
- "gt": '>',
- "amp": '&',
- "apos": '\'',
- "quot": '"',
-}
-
-// Read plain text section (XML calls it character data).
-// If quote >= 0, we are in a quoted string and need to find the matching quote.
-// If cdata == true, we are in a <![CDATA[ section and need to find ]]>.
-// On failure return nil and leave the error in d.err.
-func (d *Decoder) text(quote int, cdata bool) []byte {
- var b0, b1 byte
- var trunc int
- d.buf.Reset()
-Input:
- for {
- b, ok := d.getc()
- if !ok {
- if cdata {
- if d.err == io.EOF {
- d.err = d.syntaxError("unexpected EOF in CDATA section")
- }
- return nil
- }
- break Input
- }
-
- // <![CDATA[ section ends with ]]>.
- // It is an error for ]]> to appear in ordinary text.
- if b0 == ']' && b1 == ']' && b == '>' {
- if cdata {
- trunc = 2
- break Input
- }
- d.err = d.syntaxError("unescaped ]]> not in CDATA section")
- return nil
- }
-
- // Stop reading text if we see a <.
- if b == '<' && !cdata {
- if quote >= 0 {
- d.err = d.syntaxError("unescaped < inside quoted string")
- return nil
- }
- d.ungetc('<')
- break Input
- }
- if quote >= 0 && b == byte(quote) {
- break Input
- }
- if b == '&' && !cdata {
- // Read escaped character expression up to semicolon.
- // XML in all its glory allows a document to define and use
- // its own character names with <!ENTITY ...> directives.
- // Parsers are required to recognize lt, gt, amp, apos, and quot
- // even if they have not been declared.
- before := d.buf.Len()
- d.buf.WriteByte('&')
- var ok bool
- var text string
- var haveText bool
- if b, ok = d.mustgetc(); !ok {
- return nil
- }
- if b == '#' {
- d.buf.WriteByte(b)
- if b, ok = d.mustgetc(); !ok {
- return nil
- }
- base := 10
- if b == 'x' {
- base = 16
- d.buf.WriteByte(b)
- if b, ok = d.mustgetc(); !ok {
- return nil
- }
- }
- start := d.buf.Len()
- for '0' <= b && b <= '9' ||
- base == 16 && 'a' <= b && b <= 'f' ||
- base == 16 && 'A' <= b && b <= 'F' {
- d.buf.WriteByte(b)
- if b, ok = d.mustgetc(); !ok {
- return nil
- }
- }
- if b != ';' {
- d.ungetc(b)
- } else {
- s := string(d.buf.Bytes()[start:])
- d.buf.WriteByte(';')
- n, err := strconv.ParseUint(s, base, 64)
- if err == nil && n <= unicode.MaxRune {
- text = string(n)
- haveText = true
- }
- }
- } else {
- d.ungetc(b)
- if !d.readName() {
- if d.err != nil {
- return nil
- }
- ok = false
- }
- if b, ok = d.mustgetc(); !ok {
- return nil
- }
- if b != ';' {
- d.ungetc(b)
- } else {
- name := d.buf.Bytes()[before+1:]
- d.buf.WriteByte(';')
- if isName(name) {
- s := string(name)
- if r, ok := entity[s]; ok {
- text = string(r)
- haveText = true
- } else if d.Entity != nil {
- text, haveText = d.Entity[s]
- }
- }
- }
- }
-
- if haveText {
- d.buf.Truncate(before)
- d.buf.Write([]byte(text))
- b0, b1 = 0, 0
- continue Input
- }
- if !d.Strict {
- b0, b1 = 0, 0
- continue Input
- }
- ent := string(d.buf.Bytes()[before:])
- if ent[len(ent)-1] != ';' {
- ent += " (no semicolon)"
- }
- d.err = d.syntaxError("invalid character entity " + ent)
- return nil
- }
-
- // We must rewrite unescaped \r and \r\n into \n.
- if b == '\r' {
- d.buf.WriteByte('\n')
- } else if b1 == '\r' && b == '\n' {
- // Skip \r\n--we already wrote \n.
- } else {
- d.buf.WriteByte(b)
- }
-
- b0, b1 = b1, b
- }
- data := d.buf.Bytes()
- data = data[0 : len(data)-trunc]
-
- // Inspect each rune for being a disallowed character.
- buf := data
- for len(buf) > 0 {
- r, size := utf8.DecodeRune(buf)
- if r == utf8.RuneError && size == 1 {
- d.err = d.syntaxError("invalid UTF-8")
- return nil
- }
- buf = buf[size:]
- if !isInCharacterRange(r) {
- d.err = d.syntaxError(fmt.Sprintf("illegal character code %U", r))
- return nil
- }
- }
-
- return data
-}
-
-// Decide whether the given rune is in the XML Character Range, per
-// the Char production of http://www.xml.com/axml/testaxml.htm,
-// Section 2.2 Characters.
-func isInCharacterRange(r rune) (inrange bool) {
- return r == 0x09 ||
- r == 0x0A ||
- r == 0x0D ||
- r >= 0x20 && r <= 0xDF77 ||
- r >= 0xE000 && r <= 0xFFFD ||
- r >= 0x10000 && r <= 0x10FFFF
-}
-
-// Get name space name: name with a : stuck in the middle.
-// The part before the : is the name space identifier.
-func (d *Decoder) nsname() (name Name, ok bool) {
- s, ok := d.name()
- if !ok {
- return
- }
- i := strings.Index(s, ":")
- if i < 0 {
- name.Local = s
- } else {
- name.Space = s[0:i]
- name.Local = s[i+1:]
- }
- return name, true
-}
-
-// Get name: /first(first|second)*/
-// Do not set d.err if the name is missing (unless unexpected EOF is received):
-// let the caller provide better context.
-func (d *Decoder) name() (s string, ok bool) {
- d.buf.Reset()
- if !d.readName() {
- return "", false
- }
-
- // Now we check the characters.
- b := d.buf.Bytes()
- if !isName(b) {
- d.err = d.syntaxError("invalid XML name: " + string(b))
- return "", false
- }
- return string(b), true
-}
-
-// Read a name and append its bytes to d.buf.
-// The name is delimited by any single-byte character not valid in names.
-// All multi-byte characters are accepted; the caller must check their validity.
-func (d *Decoder) readName() (ok bool) {
- var b byte
- if b, ok = d.mustgetc(); !ok {
- return
- }
- if b < utf8.RuneSelf && !isNameByte(b) {
- d.ungetc(b)
- return false
- }
- d.buf.WriteByte(b)
-
- for {
- if b, ok = d.mustgetc(); !ok {
- return
- }
- if b < utf8.RuneSelf && !isNameByte(b) {
- d.ungetc(b)
- break
- }
- d.buf.WriteByte(b)
- }
- return true
-}
-
-func isNameByte(c byte) bool {
- return 'A' <= c && c <= 'Z' ||
- 'a' <= c && c <= 'z' ||
- '0' <= c && c <= '9' ||
- c == '_' || c == ':' || c == '.' || c == '-'
-}
-
-func isName(s []byte) bool {
- if len(s) == 0 {
- return false
- }
- c, n := utf8.DecodeRune(s)
- if c == utf8.RuneError && n == 1 {
- return false
- }
- if !unicode.Is(first, c) {
- return false
- }
- for n < len(s) {
- s = s[n:]
- c, n = utf8.DecodeRune(s)
- if c == utf8.RuneError && n == 1 {
- return false
- }
- if !unicode.Is(first, c) && !unicode.Is(second, c) {
- return false
- }
- }
- return true
-}
-
-func isNameString(s string) bool {
- if len(s) == 0 {
- return false
- }
- c, n := utf8.DecodeRuneInString(s)
- if c == utf8.RuneError && n == 1 {
- return false
- }
- if !unicode.Is(first, c) {
- return false
- }
- for n < len(s) {
- s = s[n:]
- c, n = utf8.DecodeRuneInString(s)
- if c == utf8.RuneError && n == 1 {
- return false
- }
- if !unicode.Is(first, c) && !unicode.Is(second, c) {
- return false
- }
- }
- return true
-}
-
-// These tables were generated by cut and paste from Appendix B of
-// the XML spec at http://www.xml.com/axml/testaxml.htm
-// and then reformatting. First corresponds to (Letter | '_' | ':')
-// and second corresponds to NameChar.
-
-var first = &unicode.RangeTable{
- R16: []unicode.Range16{
- {0x003A, 0x003A, 1},
- {0x0041, 0x005A, 1},
- {0x005F, 0x005F, 1},
- {0x0061, 0x007A, 1},
- {0x00C0, 0x00D6, 1},
- {0x00D8, 0x00F6, 1},
- {0x00F8, 0x00FF, 1},
- {0x0100, 0x0131, 1},
- {0x0134, 0x013E, 1},
- {0x0141, 0x0148, 1},
- {0x014A, 0x017E, 1},
- {0x0180, 0x01C3, 1},
- {0x01CD, 0x01F0, 1},
- {0x01F4, 0x01F5, 1},
- {0x01FA, 0x0217, 1},
- {0x0250, 0x02A8, 1},
- {0x02BB, 0x02C1, 1},
- {0x0386, 0x0386, 1},
- {0x0388, 0x038A, 1},
- {0x038C, 0x038C, 1},
- {0x038E, 0x03A1, 1},
- {0x03A3, 0x03CE, 1},
- {0x03D0, 0x03D6, 1},
- {0x03DA, 0x03E0, 2},
- {0x03E2, 0x03F3, 1},
- {0x0401, 0x040C, 1},
- {0x040E, 0x044F, 1},
- {0x0451, 0x045C, 1},
- {0x045E, 0x0481, 1},
- {0x0490, 0x04C4, 1},
- {0x04C7, 0x04C8, 1},
- {0x04CB, 0x04CC, 1},
- {0x04D0, 0x04EB, 1},
- {0x04EE, 0x04F5, 1},
- {0x04F8, 0x04F9, 1},
- {0x0531, 0x0556, 1},
- {0x0559, 0x0559, 1},
- {0x0561, 0x0586, 1},
- {0x05D0, 0x05EA, 1},
- {0x05F0, 0x05F2, 1},
- {0x0621, 0x063A, 1},
- {0x0641, 0x064A, 1},
- {0x0671, 0x06B7, 1},
- {0x06BA, 0x06BE, 1},
- {0x06C0, 0x06CE, 1},
- {0x06D0, 0x06D3, 1},
- {0x06D5, 0x06D5, 1},
- {0x06E5, 0x06E6, 1},
- {0x0905, 0x0939, 1},
- {0x093D, 0x093D, 1},
- {0x0958, 0x0961, 1},
- {0x0985, 0x098C, 1},
- {0x098F, 0x0990, 1},
- {0x0993, 0x09A8, 1},
- {0x09AA, 0x09B0, 1},
- {0x09B2, 0x09B2, 1},
- {0x09B6, 0x09B9, 1},
- {0x09DC, 0x09DD, 1},
- {0x09DF, 0x09E1, 1},
- {0x09F0, 0x09F1, 1},
- {0x0A05, 0x0A0A, 1},
- {0x0A0F, 0x0A10, 1},
- {0x0A13, 0x0A28, 1},
- {0x0A2A, 0x0A30, 1},
- {0x0A32, 0x0A33, 1},
- {0x0A35, 0x0A36, 1},
- {0x0A38, 0x0A39, 1},
- {0x0A59, 0x0A5C, 1},
- {0x0A5E, 0x0A5E, 1},
- {0x0A72, 0x0A74, 1},
- {0x0A85, 0x0A8B, 1},
- {0x0A8D, 0x0A8D, 1},
- {0x0A8F, 0x0A91, 1},
- {0x0A93, 0x0AA8, 1},
- {0x0AAA, 0x0AB0, 1},
- {0x0AB2, 0x0AB3, 1},
- {0x0AB5, 0x0AB9, 1},
- {0x0ABD, 0x0AE0, 0x23},
- {0x0B05, 0x0B0C, 1},
- {0x0B0F, 0x0B10, 1},
- {0x0B13, 0x0B28, 1},
- {0x0B2A, 0x0B30, 1},
- {0x0B32, 0x0B33, 1},
- {0x0B36, 0x0B39, 1},
- {0x0B3D, 0x0B3D, 1},
- {0x0B5C, 0x0B5D, 1},
- {0x0B5F, 0x0B61, 1},
- {0x0B85, 0x0B8A, 1},
- {0x0B8E, 0x0B90, 1},
- {0x0B92, 0x0B95, 1},
- {0x0B99, 0x0B9A, 1},
- {0x0B9C, 0x0B9C, 1},
- {0x0B9E, 0x0B9F, 1},
- {0x0BA3, 0x0BA4, 1},
- {0x0BA8, 0x0BAA, 1},
- {0x0BAE, 0x0BB5, 1},
- {0x0BB7, 0x0BB9, 1},
- {0x0C05, 0x0C0C, 1},
- {0x0C0E, 0x0C10, 1},
- {0x0C12, 0x0C28, 1},
- {0x0C2A, 0x0C33, 1},
- {0x0C35, 0x0C39, 1},
- {0x0C60, 0x0C61, 1},
- {0x0C85, 0x0C8C, 1},
- {0x0C8E, 0x0C90, 1},
- {0x0C92, 0x0CA8, 1},
- {0x0CAA, 0x0CB3, 1},
- {0x0CB5, 0x0CB9, 1},
- {0x0CDE, 0x0CDE, 1},
- {0x0CE0, 0x0CE1, 1},
- {0x0D05, 0x0D0C, 1},
- {0x0D0E, 0x0D10, 1},
- {0x0D12, 0x0D28, 1},
- {0x0D2A, 0x0D39, 1},
- {0x0D60, 0x0D61, 1},
- {0x0E01, 0x0E2E, 1},
- {0x0E30, 0x0E30, 1},
- {0x0E32, 0x0E33, 1},
- {0x0E40, 0x0E45, 1},
- {0x0E81, 0x0E82, 1},
- {0x0E84, 0x0E84, 1},
- {0x0E87, 0x0E88, 1},
- {0x0E8A, 0x0E8D, 3},
- {0x0E94, 0x0E97, 1},
- {0x0E99, 0x0E9F, 1},
- {0x0EA1, 0x0EA3, 1},
- {0x0EA5, 0x0EA7, 2},
- {0x0EAA, 0x0EAB, 1},
- {0x0EAD, 0x0EAE, 1},
- {0x0EB0, 0x0EB0, 1},
- {0x0EB2, 0x0EB3, 1},
- {0x0EBD, 0x0EBD, 1},
- {0x0EC0, 0x0EC4, 1},
- {0x0F40, 0x0F47, 1},
- {0x0F49, 0x0F69, 1},
- {0x10A0, 0x10C5, 1},
- {0x10D0, 0x10F6, 1},
- {0x1100, 0x1100, 1},
- {0x1102, 0x1103, 1},
- {0x1105, 0x1107, 1},
- {0x1109, 0x1109, 1},
- {0x110B, 0x110C, 1},
- {0x110E, 0x1112, 1},
- {0x113C, 0x1140, 2},
- {0x114C, 0x1150, 2},
- {0x1154, 0x1155, 1},
- {0x1159, 0x1159, 1},
- {0x115F, 0x1161, 1},
- {0x1163, 0x1169, 2},
- {0x116D, 0x116E, 1},
- {0x1172, 0x1173, 1},
- {0x1175, 0x119E, 0x119E - 0x1175},
- {0x11A8, 0x11AB, 0x11AB - 0x11A8},
- {0x11AE, 0x11AF, 1},
- {0x11B7, 0x11B8, 1},
- {0x11BA, 0x11BA, 1},
- {0x11BC, 0x11C2, 1},
- {0x11EB, 0x11F0, 0x11F0 - 0x11EB},
- {0x11F9, 0x11F9, 1},
- {0x1E00, 0x1E9B, 1},
- {0x1EA0, 0x1EF9, 1},
- {0x1F00, 0x1F15, 1},
- {0x1F18, 0x1F1D, 1},
- {0x1F20, 0x1F45, 1},
- {0x1F48, 0x1F4D, 1},
- {0x1F50, 0x1F57, 1},
- {0x1F59, 0x1F5B, 0x1F5B - 0x1F59},
- {0x1F5D, 0x1F5D, 1},
- {0x1F5F, 0x1F7D, 1},
- {0x1F80, 0x1FB4, 1},
- {0x1FB6, 0x1FBC, 1},
- {0x1FBE, 0x1FBE, 1},
- {0x1FC2, 0x1FC4, 1},
- {0x1FC6, 0x1FCC, 1},
- {0x1FD0, 0x1FD3, 1},
- {0x1FD6, 0x1FDB, 1},
- {0x1FE0, 0x1FEC, 1},
- {0x1FF2, 0x1FF4, 1},
- {0x1FF6, 0x1FFC, 1},
- {0x2126, 0x2126, 1},
- {0x212A, 0x212B, 1},
- {0x212E, 0x212E, 1},
- {0x2180, 0x2182, 1},
- {0x3007, 0x3007, 1},
- {0x3021, 0x3029, 1},
- {0x3041, 0x3094, 1},
- {0x30A1, 0x30FA, 1},
- {0x3105, 0x312C, 1},
- {0x4E00, 0x9FA5, 1},
- {0xAC00, 0xD7A3, 1},
- },
-}
-
-var second = &unicode.RangeTable{
- R16: []unicode.Range16{
- {0x002D, 0x002E, 1},
- {0x0030, 0x0039, 1},
- {0x00B7, 0x00B7, 1},
- {0x02D0, 0x02D1, 1},
- {0x0300, 0x0345, 1},
- {0x0360, 0x0361, 1},
- {0x0387, 0x0387, 1},
- {0x0483, 0x0486, 1},
- {0x0591, 0x05A1, 1},
- {0x05A3, 0x05B9, 1},
- {0x05BB, 0x05BD, 1},
- {0x05BF, 0x05BF, 1},
- {0x05C1, 0x05C2, 1},
- {0x05C4, 0x0640, 0x0640 - 0x05C4},
- {0x064B, 0x0652, 1},
- {0x0660, 0x0669, 1},
- {0x0670, 0x0670, 1},
- {0x06D6, 0x06DC, 1},
- {0x06DD, 0x06DF, 1},
- {0x06E0, 0x06E4, 1},
- {0x06E7, 0x06E8, 1},
- {0x06EA, 0x06ED, 1},
- {0x06F0, 0x06F9, 1},
- {0x0901, 0x0903, 1},
- {0x093C, 0x093C, 1},
- {0x093E, 0x094C, 1},
- {0x094D, 0x094D, 1},
- {0x0951, 0x0954, 1},
- {0x0962, 0x0963, 1},
- {0x0966, 0x096F, 1},
- {0x0981, 0x0983, 1},
- {0x09BC, 0x09BC, 1},
- {0x09BE, 0x09BF, 1},
- {0x09C0, 0x09C4, 1},
- {0x09C7, 0x09C8, 1},
- {0x09CB, 0x09CD, 1},
- {0x09D7, 0x09D7, 1},
- {0x09E2, 0x09E3, 1},
- {0x09E6, 0x09EF, 1},
- {0x0A02, 0x0A3C, 0x3A},
- {0x0A3E, 0x0A3F, 1},
- {0x0A40, 0x0A42, 1},
- {0x0A47, 0x0A48, 1},
- {0x0A4B, 0x0A4D, 1},
- {0x0A66, 0x0A6F, 1},
- {0x0A70, 0x0A71, 1},
- {0x0A81, 0x0A83, 1},
- {0x0ABC, 0x0ABC, 1},
- {0x0ABE, 0x0AC5, 1},
- {0x0AC7, 0x0AC9, 1},
- {0x0ACB, 0x0ACD, 1},
- {0x0AE6, 0x0AEF, 1},
- {0x0B01, 0x0B03, 1},
- {0x0B3C, 0x0B3C, 1},
- {0x0B3E, 0x0B43, 1},
- {0x0B47, 0x0B48, 1},
- {0x0B4B, 0x0B4D, 1},
- {0x0B56, 0x0B57, 1},
- {0x0B66, 0x0B6F, 1},
- {0x0B82, 0x0B83, 1},
- {0x0BBE, 0x0BC2, 1},
- {0x0BC6, 0x0BC8, 1},
- {0x0BCA, 0x0BCD, 1},
- {0x0BD7, 0x0BD7, 1},
- {0x0BE7, 0x0BEF, 1},
- {0x0C01, 0x0C03, 1},
- {0x0C3E, 0x0C44, 1},
- {0x0C46, 0x0C48, 1},
- {0x0C4A, 0x0C4D, 1},
- {0x0C55, 0x0C56, 1},
- {0x0C66, 0x0C6F, 1},
- {0x0C82, 0x0C83, 1},
- {0x0CBE, 0x0CC4, 1},
- {0x0CC6, 0x0CC8, 1},
- {0x0CCA, 0x0CCD, 1},
- {0x0CD5, 0x0CD6, 1},
- {0x0CE6, 0x0CEF, 1},
- {0x0D02, 0x0D03, 1},
- {0x0D3E, 0x0D43, 1},
- {0x0D46, 0x0D48, 1},
- {0x0D4A, 0x0D4D, 1},
- {0x0D57, 0x0D57, 1},
- {0x0D66, 0x0D6F, 1},
- {0x0E31, 0x0E31, 1},
- {0x0E34, 0x0E3A, 1},
- {0x0E46, 0x0E46, 1},
- {0x0E47, 0x0E4E, 1},
- {0x0E50, 0x0E59, 1},
- {0x0EB1, 0x0EB1, 1},
- {0x0EB4, 0x0EB9, 1},
- {0x0EBB, 0x0EBC, 1},
- {0x0EC6, 0x0EC6, 1},
- {0x0EC8, 0x0ECD, 1},
- {0x0ED0, 0x0ED9, 1},
- {0x0F18, 0x0F19, 1},
- {0x0F20, 0x0F29, 1},
- {0x0F35, 0x0F39, 2},
- {0x0F3E, 0x0F3F, 1},
- {0x0F71, 0x0F84, 1},
- {0x0F86, 0x0F8B, 1},
- {0x0F90, 0x0F95, 1},
- {0x0F97, 0x0F97, 1},
- {0x0F99, 0x0FAD, 1},
- {0x0FB1, 0x0FB7, 1},
- {0x0FB9, 0x0FB9, 1},
- {0x20D0, 0x20DC, 1},
- {0x20E1, 0x3005, 0x3005 - 0x20E1},
- {0x302A, 0x302F, 1},
- {0x3031, 0x3035, 1},
- {0x3099, 0x309A, 1},
- {0x309D, 0x309E, 1},
- {0x30FC, 0x30FE, 1},
- },
-}
-
-// HTMLEntity is an entity map containing translations for the
-// standard HTML entity characters.
-var HTMLEntity = htmlEntity
-
-var htmlEntity = map[string]string{
- /*
- hget http://www.w3.org/TR/html4/sgml/entities.html |
- ssam '
- ,y /\&gt;/ x/\&lt;(.|\n)+/ s/\n/ /g
- ,x v/^\&lt;!ENTITY/d
- ,s/\&lt;!ENTITY ([^ ]+) .*U\+([0-9A-F][0-9A-F][0-9A-F][0-9A-F]) .+/ "\1": "\\u\2",/g
- '
- */
- "nbsp": "\u00A0",
- "iexcl": "\u00A1",
- "cent": "\u00A2",
- "pound": "\u00A3",
- "curren": "\u00A4",
- "yen": "\u00A5",
- "brvbar": "\u00A6",
- "sect": "\u00A7",
- "uml": "\u00A8",
- "copy": "\u00A9",
- "ordf": "\u00AA",
- "laquo": "\u00AB",
- "not": "\u00AC",
- "shy": "\u00AD",
- "reg": "\u00AE",
- "macr": "\u00AF",
- "deg": "\u00B0",
- "plusmn": "\u00B1",
- "sup2": "\u00B2",
- "sup3": "\u00B3",
- "acute": "\u00B4",
- "micro": "\u00B5",
- "para": "\u00B6",
- "middot": "\u00B7",
- "cedil": "\u00B8",
- "sup1": "\u00B9",
- "ordm": "\u00BA",
- "raquo": "\u00BB",
- "frac14": "\u00BC",
- "frac12": "\u00BD",
- "frac34": "\u00BE",
- "iquest": "\u00BF",
- "Agrave": "\u00C0",
- "Aacute": "\u00C1",
- "Acirc": "\u00C2",
- "Atilde": "\u00C3",
- "Auml": "\u00C4",
- "Aring": "\u00C5",
- "AElig": "\u00C6",
- "Ccedil": "\u00C7",
- "Egrave": "\u00C8",
- "Eacute": "\u00C9",
- "Ecirc": "\u00CA",
- "Euml": "\u00CB",
- "Igrave": "\u00CC",
- "Iacute": "\u00CD",
- "Icirc": "\u00CE",
- "Iuml": "\u00CF",
- "ETH": "\u00D0",
- "Ntilde": "\u00D1",
- "Ograve": "\u00D2",
- "Oacute": "\u00D3",
- "Ocirc": "\u00D4",
- "Otilde": "\u00D5",
- "Ouml": "\u00D6",
- "times": "\u00D7",
- "Oslash": "\u00D8",
- "Ugrave": "\u00D9",
- "Uacute": "\u00DA",
- "Ucirc": "\u00DB",
- "Uuml": "\u00DC",
- "Yacute": "\u00DD",
- "THORN": "\u00DE",
- "szlig": "\u00DF",
- "agrave": "\u00E0",
- "aacute": "\u00E1",
- "acirc": "\u00E2",
- "atilde": "\u00E3",
- "auml": "\u00E4",
- "aring": "\u00E5",
- "aelig": "\u00E6",
- "ccedil": "\u00E7",
- "egrave": "\u00E8",
- "eacute": "\u00E9",
- "ecirc": "\u00EA",
- "euml": "\u00EB",
- "igrave": "\u00EC",
- "iacute": "\u00ED",
- "icirc": "\u00EE",
- "iuml": "\u00EF",
- "eth": "\u00F0",
- "ntilde": "\u00F1",
- "ograve": "\u00F2",
- "oacute": "\u00F3",
- "ocirc": "\u00F4",
- "otilde": "\u00F5",
- "ouml": "\u00F6",
- "divide": "\u00F7",
- "oslash": "\u00F8",
- "ugrave": "\u00F9",
- "uacute": "\u00FA",
- "ucirc": "\u00FB",
- "uuml": "\u00FC",
- "yacute": "\u00FD",
- "thorn": "\u00FE",
- "yuml": "\u00FF",
- "fnof": "\u0192",
- "Alpha": "\u0391",
- "Beta": "\u0392",
- "Gamma": "\u0393",
- "Delta": "\u0394",
- "Epsilon": "\u0395",
- "Zeta": "\u0396",
- "Eta": "\u0397",
- "Theta": "\u0398",
- "Iota": "\u0399",
- "Kappa": "\u039A",
- "Lambda": "\u039B",
- "Mu": "\u039C",
- "Nu": "\u039D",
- "Xi": "\u039E",
- "Omicron": "\u039F",
- "Pi": "\u03A0",
- "Rho": "\u03A1",
- "Sigma": "\u03A3",
- "Tau": "\u03A4",
- "Upsilon": "\u03A5",
- "Phi": "\u03A6",
- "Chi": "\u03A7",
- "Psi": "\u03A8",
- "Omega": "\u03A9",
- "alpha": "\u03B1",
- "beta": "\u03B2",
- "gamma": "\u03B3",
- "delta": "\u03B4",
- "epsilon": "\u03B5",
- "zeta": "\u03B6",
- "eta": "\u03B7",
- "theta": "\u03B8",
- "iota": "\u03B9",
- "kappa": "\u03BA",
- "lambda": "\u03BB",
- "mu": "\u03BC",
- "nu": "\u03BD",
- "xi": "\u03BE",
- "omicron": "\u03BF",
- "pi": "\u03C0",
- "rho": "\u03C1",
- "sigmaf": "\u03C2",
- "sigma": "\u03C3",
- "tau": "\u03C4",
- "upsilon": "\u03C5",
- "phi": "\u03C6",
- "chi": "\u03C7",
- "psi": "\u03C8",
- "omega": "\u03C9",
- "thetasym": "\u03D1",
- "upsih": "\u03D2",
- "piv": "\u03D6",
- "bull": "\u2022",
- "hellip": "\u2026",
- "prime": "\u2032",
- "Prime": "\u2033",
- "oline": "\u203E",
- "frasl": "\u2044",
- "weierp": "\u2118",
- "image": "\u2111",
- "real": "\u211C",
- "trade": "\u2122",
- "alefsym": "\u2135",
- "larr": "\u2190",
- "uarr": "\u2191",
- "rarr": "\u2192",
- "darr": "\u2193",
- "harr": "\u2194",
- "crarr": "\u21B5",
- "lArr": "\u21D0",
- "uArr": "\u21D1",
- "rArr": "\u21D2",
- "dArr": "\u21D3",
- "hArr": "\u21D4",
- "forall": "\u2200",
- "part": "\u2202",
- "exist": "\u2203",
- "empty": "\u2205",
- "nabla": "\u2207",
- "isin": "\u2208",
- "notin": "\u2209",
- "ni": "\u220B",
- "prod": "\u220F",
- "sum": "\u2211",
- "minus": "\u2212",
- "lowast": "\u2217",
- "radic": "\u221A",
- "prop": "\u221D",
- "infin": "\u221E",
- "ang": "\u2220",
- "and": "\u2227",
- "or": "\u2228",
- "cap": "\u2229",
- "cup": "\u222A",
- "int": "\u222B",
- "there4": "\u2234",
- "sim": "\u223C",
- "cong": "\u2245",
- "asymp": "\u2248",
- "ne": "\u2260",
- "equiv": "\u2261",
- "le": "\u2264",
- "ge": "\u2265",
- "sub": "\u2282",
- "sup": "\u2283",
- "nsub": "\u2284",
- "sube": "\u2286",
- "supe": "\u2287",
- "oplus": "\u2295",
- "otimes": "\u2297",
- "perp": "\u22A5",
- "sdot": "\u22C5",
- "lceil": "\u2308",
- "rceil": "\u2309",
- "lfloor": "\u230A",
- "rfloor": "\u230B",
- "lang": "\u2329",
- "rang": "\u232A",
- "loz": "\u25CA",
- "spades": "\u2660",
- "clubs": "\u2663",
- "hearts": "\u2665",
- "diams": "\u2666",
- "quot": "\u0022",
- "amp": "\u0026",
- "lt": "\u003C",
- "gt": "\u003E",
- "OElig": "\u0152",
- "oelig": "\u0153",
- "Scaron": "\u0160",
- "scaron": "\u0161",
- "Yuml": "\u0178",
- "circ": "\u02C6",
- "tilde": "\u02DC",
- "ensp": "\u2002",
- "emsp": "\u2003",
- "thinsp": "\u2009",
- "zwnj": "\u200C",
- "zwj": "\u200D",
- "lrm": "\u200E",
- "rlm": "\u200F",
- "ndash": "\u2013",
- "mdash": "\u2014",
- "lsquo": "\u2018",
- "rsquo": "\u2019",
- "sbquo": "\u201A",
- "ldquo": "\u201C",
- "rdquo": "\u201D",
- "bdquo": "\u201E",
- "dagger": "\u2020",
- "Dagger": "\u2021",
- "permil": "\u2030",
- "lsaquo": "\u2039",
- "rsaquo": "\u203A",
- "euro": "\u20AC",
-}
-
-// HTMLAutoClose is the set of HTML elements that
-// should be considered to close automatically.
-var HTMLAutoClose = htmlAutoClose
-
-var htmlAutoClose = []string{
- /*
- hget http://www.w3.org/TR/html4/loose.dtd |
- 9 sed -n 's/<!ELEMENT ([^ ]*) +- O EMPTY.+/ "\1",/p' | tr A-Z a-z
- */
- "basefont",
- "br",
- "area",
- "link",
- "img",
- "param",
- "hr",
- "input",
- "col",
- "frame",
- "isindex",
- "base",
- "meta",
-}
-
-var (
- esc_quot = []byte("&#34;") // shorter than "&quot;"
- esc_apos = []byte("&#39;") // shorter than "&apos;"
- esc_amp = []byte("&amp;")
- esc_lt = []byte("&lt;")
- esc_gt = []byte("&gt;")
- esc_tab = []byte("&#x9;")
- esc_nl = []byte("&#xA;")
- esc_cr = []byte("&#xD;")
- esc_fffd = []byte("\uFFFD") // Unicode replacement character
-)
-
-// EscapeText writes to w the properly escaped XML equivalent
-// of the plain text data s.
-func EscapeText(w io.Writer, s []byte) error {
- return escapeText(w, s, true)
-}
-
-// escapeText writes to w the properly escaped XML equivalent
-// of the plain text data s. If escapeNewline is true, newline
-// characters will be escaped.
-func escapeText(w io.Writer, s []byte, escapeNewline bool) error {
- var esc []byte
- last := 0
- for i := 0; i < len(s); {
- r, width := utf8.DecodeRune(s[i:])
- i += width
- switch r {
- case '"':
- esc = esc_quot
- case '\'':
- esc = esc_apos
- case '&':
- esc = esc_amp
- case '<':
- esc = esc_lt
- case '>':
- esc = esc_gt
- case '\t':
- esc = esc_tab
- case '\n':
- if !escapeNewline {
- continue
- }
- esc = esc_nl
- case '\r':
- esc = esc_cr
- default:
- if !isInCharacterRange(r) || (r == 0xFFFD && width == 1) {
- esc = esc_fffd
- break
- }
- continue
- }
- if _, err := w.Write(s[last : i-width]); err != nil {
- return err
- }
- if _, err := w.Write(esc); err != nil {
- return err
- }
- last = i
- }
- if _, err := w.Write(s[last:]); err != nil {
- return err
- }
- return nil
-}
-
-// EscapeString writes to p the properly escaped XML equivalent
-// of the plain text data s.
-func (p *printer) EscapeString(s string) {
- var esc []byte
- last := 0
- for i := 0; i < len(s); {
- r, width := utf8.DecodeRuneInString(s[i:])
- i += width
- switch r {
- case '"':
- esc = esc_quot
- case '\'':
- esc = esc_apos
- case '&':
- esc = esc_amp
- case '<':
- esc = esc_lt
- case '>':
- esc = esc_gt
- case '\t':
- esc = esc_tab
- case '\n':
- esc = esc_nl
- case '\r':
- esc = esc_cr
- default:
- if !isInCharacterRange(r) || (r == 0xFFFD && width == 1) {
- esc = esc_fffd
- break
- }
- continue
- }
- p.WriteString(s[last : i-width])
- p.Write(esc)
- last = i
- }
- p.WriteString(s[last:])
-}
-
-// Escape is like EscapeText but omits the error return value.
-// It is provided for backwards compatibility with Go 1.0.
-// Code targeting Go 1.1 or later should use EscapeText.
-func Escape(w io.Writer, s []byte) {
- EscapeText(w, s)
-}
-
-// procInst parses the `param="..."` or `param='...'`
-// value out of the provided string, returning "" if not found.
-func procInst(param, s string) string {
- // TODO: this parsing is somewhat lame and not exact.
- // It works for all actual cases, though.
- param = param + "="
- idx := strings.Index(s, param)
- if idx == -1 {
- return ""
- }
- v := s[idx+len(param):]
- if v == "" {
- return ""
- }
- if v[0] != '\'' && v[0] != '"' {
- return ""
- }
- idx = strings.IndexRune(v[1:], rune(v[0]))
- if idx == -1 {
- return ""
- }
- return v[1 : idx+1]
-}
diff --git a/vendor/golang.org/x/net/webdav/litmus_test_server.go b/vendor/golang.org/x/net/webdav/litmus_test_server.go
deleted file mode 100644
index 514db5d..0000000
--- a/vendor/golang.org/x/net/webdav/litmus_test_server.go
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-This program is a server for the WebDAV 'litmus' compliance test at
-http://www.webdav.org/neon/litmus/
-To run the test:
-
-go run litmus_test_server.go
-
-and separately, from the downloaded litmus-xxx directory:
-
-make URL=http://localhost:9999/ check
-*/
-package main
-
-import (
- "flag"
- "fmt"
- "log"
- "net/http"
- "net/url"
-
- "golang.org/x/net/webdav"
-)
-
-var port = flag.Int("port", 9999, "server port")
-
-func main() {
- flag.Parse()
- log.SetFlags(0)
- h := &webdav.Handler{
- FileSystem: webdav.NewMemFS(),
- LockSystem: webdav.NewMemLS(),
- Logger: func(r *http.Request, err error) {
- litmus := r.Header.Get("X-Litmus")
- if len(litmus) > 19 {
- litmus = litmus[:16] + "..."
- }
-
- switch r.Method {
- case "COPY", "MOVE":
- dst := ""
- if u, err := url.Parse(r.Header.Get("Destination")); err == nil {
- dst = u.Path
- }
- o := r.Header.Get("Overwrite")
- log.Printf("%-20s%-10s%-30s%-30so=%-2s%v", litmus, r.Method, r.URL.Path, dst, o, err)
- default:
- log.Printf("%-20s%-10s%-30s%v", litmus, r.Method, r.URL.Path, err)
- }
- },
- }
-
- // The next line would normally be:
- // http.Handle("/", h)
- // but we wrap that HTTP handler h to cater for a special case.
- //
- // The propfind_invalid2 litmus test case expects an empty namespace prefix
- // declaration to be an error. The FAQ in the webdav litmus test says:
- //
- // "What does the "propfind_invalid2" test check for?...
- //
- // If a request was sent with an XML body which included an empty namespace
- // prefix declaration (xmlns:ns1=""), then the server must reject that with
- // a "400 Bad Request" response, as it is invalid according to the XML
- // Namespace specification."
- //
- // On the other hand, the Go standard library's encoding/xml package
- // accepts an empty xmlns namespace, as per the discussion at
- // https://github.com/golang/go/issues/8068
- //
- // Empty namespaces seem disallowed in the second (2006) edition of the XML
- // standard, but allowed in a later edition. The grammar differs between
- // http://www.w3.org/TR/2006/REC-xml-names-20060816/#ns-decl and
- // http://www.w3.org/TR/REC-xml-names/#dt-prefix
- //
- // Thus, we assume that the propfind_invalid2 test is obsolete, and
- // hard-code the 400 Bad Request response that the test expects.
- http.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
- if r.Header.Get("X-Litmus") == "props: 3 (propfind_invalid2)" {
- http.Error(w, "400 Bad Request", http.StatusBadRequest)
- return
- }
- h.ServeHTTP(w, r)
- }))
-
- addr := fmt.Sprintf(":%d", *port)
- log.Printf("Serving %v", addr)
- log.Fatal(http.ListenAndServe(addr, nil))
-}
diff --git a/vendor/golang.org/x/net/webdav/lock.go b/vendor/golang.org/x/net/webdav/lock.go
deleted file mode 100644
index 344ac5c..0000000
--- a/vendor/golang.org/x/net/webdav/lock.go
+++ /dev/null
@@ -1,445 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package webdav
-
-import (
- "container/heap"
- "errors"
- "strconv"
- "strings"
- "sync"
- "time"
-)
-
-var (
- // ErrConfirmationFailed is returned by a LockSystem's Confirm method.
- ErrConfirmationFailed = errors.New("webdav: confirmation failed")
- // ErrForbidden is returned by a LockSystem's Unlock method.
- ErrForbidden = errors.New("webdav: forbidden")
- // ErrLocked is returned by a LockSystem's Create, Refresh and Unlock methods.
- ErrLocked = errors.New("webdav: locked")
- // ErrNoSuchLock is returned by a LockSystem's Refresh and Unlock methods.
- ErrNoSuchLock = errors.New("webdav: no such lock")
-)
-
-// Condition can match a WebDAV resource, based on a token or ETag.
-// Exactly one of Token and ETag should be non-empty.
-type Condition struct {
- Not bool
- Token string
- ETag string
-}
-
-// LockSystem manages access to a collection of named resources. The elements
-// in a lock name are separated by slash ('/', U+002F) characters, regardless
-// of host operating system convention.
-type LockSystem interface {
- // Confirm confirms that the caller can claim all of the locks specified by
- // the given conditions, and that holding the union of all of those locks
- // gives exclusive access to all of the named resources. Up to two resources
- // can be named. Empty names are ignored.
- //
- // Exactly one of release and err will be non-nil. If release is non-nil,
- // all of the requested locks are held until release is called. Calling
- // release does not unlock the lock, in the WebDAV UNLOCK sense, but once
- // Confirm has confirmed that a lock claim is valid, that lock cannot be
- // Confirmed again until it has been released.
- //
- // If Confirm returns ErrConfirmationFailed then the Handler will continue
- // to try any other set of locks presented (a WebDAV HTTP request can
- // present more than one set of locks). If it returns any other non-nil
- // error, the Handler will write a "500 Internal Server Error" HTTP status.
- Confirm(now time.Time, name0, name1 string, conditions ...Condition) (release func(), err error)
-
- // Create creates a lock with the given depth, duration, owner and root
- // (name). The depth will either be negative (meaning infinite) or zero.
- //
- // If Create returns ErrLocked then the Handler will write a "423 Locked"
- // HTTP status. If it returns any other non-nil error, the Handler will
- // write a "500 Internal Server Error" HTTP status.
- //
- // See http://www.webdav.org/specs/rfc4918.html#rfc.section.9.10.6 for
- // when to use each error.
- //
- // The token returned identifies the created lock. It should be an absolute
- // URI as defined by RFC 3986, Section 4.3. In particular, it should not
- // contain whitespace.
- Create(now time.Time, details LockDetails) (token string, err error)
-
- // Refresh refreshes the lock with the given token.
- //
- // If Refresh returns ErrLocked then the Handler will write a "423 Locked"
- // HTTP Status. If Refresh returns ErrNoSuchLock then the Handler will write
- // a "412 Precondition Failed" HTTP Status. If it returns any other non-nil
- // error, the Handler will write a "500 Internal Server Error" HTTP status.
- //
- // See http://www.webdav.org/specs/rfc4918.html#rfc.section.9.10.6 for
- // when to use each error.
- Refresh(now time.Time, token string, duration time.Duration) (LockDetails, error)
-
- // Unlock unlocks the lock with the given token.
- //
- // If Unlock returns ErrForbidden then the Handler will write a "403
- // Forbidden" HTTP Status. If Unlock returns ErrLocked then the Handler
- // will write a "423 Locked" HTTP status. If Unlock returns ErrNoSuchLock
- // then the Handler will write a "409 Conflict" HTTP Status. If it returns
- // any other non-nil error, the Handler will write a "500 Internal Server
- // Error" HTTP status.
- //
- // See http://www.webdav.org/specs/rfc4918.html#rfc.section.9.11.1 for
- // when to use each error.
- Unlock(now time.Time, token string) error
-}
-
-// LockDetails are a lock's metadata.
-type LockDetails struct {
- // Root is the root resource name being locked. For a zero-depth lock, the
- // root is the only resource being locked.
- Root string
- // Duration is the lock timeout. A negative duration means infinite.
- Duration time.Duration
- // OwnerXML is the verbatim <owner> XML given in a LOCK HTTP request.
- //
- // TODO: does the "verbatim" nature play well with XML namespaces?
- // Does the OwnerXML field need to have more structure? See
- // https://codereview.appspot.com/175140043/#msg2
- OwnerXML string
- // ZeroDepth is whether the lock has zero depth. If it does not have zero
- // depth, it has infinite depth.
- ZeroDepth bool
-}
-
-// NewMemLS returns a new in-memory LockSystem.
-func NewMemLS() LockSystem {
- return &memLS{
- byName: make(map[string]*memLSNode),
- byToken: make(map[string]*memLSNode),
- gen: uint64(time.Now().Unix()),
- }
-}
-
-type memLS struct {
- mu sync.Mutex
- byName map[string]*memLSNode
- byToken map[string]*memLSNode
- gen uint64
- // byExpiry only contains those nodes whose LockDetails have a finite
- // Duration and are yet to expire.
- byExpiry byExpiry
-}
-
-func (m *memLS) nextToken() string {
- m.gen++
- return strconv.FormatUint(m.gen, 10)
-}
-
-func (m *memLS) collectExpiredNodes(now time.Time) {
- for len(m.byExpiry) > 0 {
- if now.Before(m.byExpiry[0].expiry) {
- break
- }
- m.remove(m.byExpiry[0])
- }
-}
-
-func (m *memLS) Confirm(now time.Time, name0, name1 string, conditions ...Condition) (func(), error) {
- m.mu.Lock()
- defer m.mu.Unlock()
- m.collectExpiredNodes(now)
-
- var n0, n1 *memLSNode
- if name0 != "" {
- if n0 = m.lookup(slashClean(name0), conditions...); n0 == nil {
- return nil, ErrConfirmationFailed
- }
- }
- if name1 != "" {
- if n1 = m.lookup(slashClean(name1), conditions...); n1 == nil {
- return nil, ErrConfirmationFailed
- }
- }
-
- // Don't hold the same node twice.
- if n1 == n0 {
- n1 = nil
- }
-
- if n0 != nil {
- m.hold(n0)
- }
- if n1 != nil {
- m.hold(n1)
- }
- return func() {
- m.mu.Lock()
- defer m.mu.Unlock()
- if n1 != nil {
- m.unhold(n1)
- }
- if n0 != nil {
- m.unhold(n0)
- }
- }, nil
-}
-
-// lookup returns the node n that locks the named resource, provided that n
-// matches at least one of the given conditions and that lock isn't held by
-// another party. Otherwise, it returns nil.
-//
-// n may be a parent of the named resource, if n is an infinite depth lock.
-func (m *memLS) lookup(name string, conditions ...Condition) (n *memLSNode) {
- // TODO: support Condition.Not and Condition.ETag.
- for _, c := range conditions {
- n = m.byToken[c.Token]
- if n == nil || n.held {
- continue
- }
- if name == n.details.Root {
- return n
- }
- if n.details.ZeroDepth {
- continue
- }
- if n.details.Root == "/" || strings.HasPrefix(name, n.details.Root+"/") {
- return n
- }
- }
- return nil
-}
-
-func (m *memLS) hold(n *memLSNode) {
- if n.held {
- panic("webdav: memLS inconsistent held state")
- }
- n.held = true
- if n.details.Duration >= 0 && n.byExpiryIndex >= 0 {
- heap.Remove(&m.byExpiry, n.byExpiryIndex)
- }
-}
-
-func (m *memLS) unhold(n *memLSNode) {
- if !n.held {
- panic("webdav: memLS inconsistent held state")
- }
- n.held = false
- if n.details.Duration >= 0 {
- heap.Push(&m.byExpiry, n)
- }
-}
-
-func (m *memLS) Create(now time.Time, details LockDetails) (string, error) {
- m.mu.Lock()
- defer m.mu.Unlock()
- m.collectExpiredNodes(now)
- details.Root = slashClean(details.Root)
-
- if !m.canCreate(details.Root, details.ZeroDepth) {
- return "", ErrLocked
- }
- n := m.create(details.Root)
- n.token = m.nextToken()
- m.byToken[n.token] = n
- n.details = details
- if n.details.Duration >= 0 {
- n.expiry = now.Add(n.details.Duration)
- heap.Push(&m.byExpiry, n)
- }
- return n.token, nil
-}
-
-func (m *memLS) Refresh(now time.Time, token string, duration time.Duration) (LockDetails, error) {
- m.mu.Lock()
- defer m.mu.Unlock()
- m.collectExpiredNodes(now)
-
- n := m.byToken[token]
- if n == nil {
- return LockDetails{}, ErrNoSuchLock
- }
- if n.held {
- return LockDetails{}, ErrLocked
- }
- if n.byExpiryIndex >= 0 {
- heap.Remove(&m.byExpiry, n.byExpiryIndex)
- }
- n.details.Duration = duration
- if n.details.Duration >= 0 {
- n.expiry = now.Add(n.details.Duration)
- heap.Push(&m.byExpiry, n)
- }
- return n.details, nil
-}
-
-func (m *memLS) Unlock(now time.Time, token string) error {
- m.mu.Lock()
- defer m.mu.Unlock()
- m.collectExpiredNodes(now)
-
- n := m.byToken[token]
- if n == nil {
- return ErrNoSuchLock
- }
- if n.held {
- return ErrLocked
- }
- m.remove(n)
- return nil
-}
-
-func (m *memLS) canCreate(name string, zeroDepth bool) bool {
- return walkToRoot(name, func(name0 string, first bool) bool {
- n := m.byName[name0]
- if n == nil {
- return true
- }
- if first {
- if n.token != "" {
- // The target node is already locked.
- return false
- }
- if !zeroDepth {
- // The requested lock depth is infinite, and the fact that n exists
- // (n != nil) means that a descendent of the target node is locked.
- return false
- }
- } else if n.token != "" && !n.details.ZeroDepth {
- // An ancestor of the target node is locked with infinite depth.
- return false
- }
- return true
- })
-}
-
-func (m *memLS) create(name string) (ret *memLSNode) {
- walkToRoot(name, func(name0 string, first bool) bool {
- n := m.byName[name0]
- if n == nil {
- n = &memLSNode{
- details: LockDetails{
- Root: name0,
- },
- byExpiryIndex: -1,
- }
- m.byName[name0] = n
- }
- n.refCount++
- if first {
- ret = n
- }
- return true
- })
- return ret
-}
-
-func (m *memLS) remove(n *memLSNode) {
- delete(m.byToken, n.token)
- n.token = ""
- walkToRoot(n.details.Root, func(name0 string, first bool) bool {
- x := m.byName[name0]
- x.refCount--
- if x.refCount == 0 {
- delete(m.byName, name0)
- }
- return true
- })
- if n.byExpiryIndex >= 0 {
- heap.Remove(&m.byExpiry, n.byExpiryIndex)
- }
-}
-
-func walkToRoot(name string, f func(name0 string, first bool) bool) bool {
- for first := true; ; first = false {
- if !f(name, first) {
- return false
- }
- if name == "/" {
- break
- }
- name = name[:strings.LastIndex(name, "/")]
- if name == "" {
- name = "/"
- }
- }
- return true
-}
-
-type memLSNode struct {
- // details are the lock metadata. Even if this node's name is not explicitly locked,
- // details.Root will still equal the node's name.
- details LockDetails
- // token is the unique identifier for this node's lock. An empty token means that
- // this node is not explicitly locked.
- token string
- // refCount is the number of self-or-descendent nodes that are explicitly locked.
- refCount int
- // expiry is when this node's lock expires.
- expiry time.Time
- // byExpiryIndex is the index of this node in memLS.byExpiry. It is -1
- // if this node does not expire, or has expired.
- byExpiryIndex int
- // held is whether this node's lock is actively held by a Confirm call.
- held bool
-}
-
-type byExpiry []*memLSNode
-
-func (b *byExpiry) Len() int {
- return len(*b)
-}
-
-func (b *byExpiry) Less(i, j int) bool {
- return (*b)[i].expiry.Before((*b)[j].expiry)
-}
-
-func (b *byExpiry) Swap(i, j int) {
- (*b)[i], (*b)[j] = (*b)[j], (*b)[i]
- (*b)[i].byExpiryIndex = i
- (*b)[j].byExpiryIndex = j
-}
-
-func (b *byExpiry) Push(x interface{}) {
- n := x.(*memLSNode)
- n.byExpiryIndex = len(*b)
- *b = append(*b, n)
-}
-
-func (b *byExpiry) Pop() interface{} {
- i := len(*b) - 1
- n := (*b)[i]
- (*b)[i] = nil
- n.byExpiryIndex = -1
- *b = (*b)[:i]
- return n
-}
-
-const infiniteTimeout = -1
-
-// parseTimeout parses the Timeout HTTP header, as per section 10.7. If s is
-// empty, an infiniteTimeout is returned.
-func parseTimeout(s string) (time.Duration, error) {
- if s == "" {
- return infiniteTimeout, nil
- }
- if i := strings.IndexByte(s, ','); i >= 0 {
- s = s[:i]
- }
- s = strings.TrimSpace(s)
- if s == "Infinite" {
- return infiniteTimeout, nil
- }
- const pre = "Second-"
- if !strings.HasPrefix(s, pre) {
- return 0, errInvalidTimeout
- }
- s = s[len(pre):]
- if s == "" || s[0] < '0' || '9' < s[0] {
- return 0, errInvalidTimeout
- }
- n, err := strconv.ParseInt(s, 10, 64)
- if err != nil || 1<<32-1 < n {
- return 0, errInvalidTimeout
- }
- return time.Duration(n) * time.Second, nil
-}
diff --git a/vendor/golang.org/x/net/webdav/prop.go b/vendor/golang.org/x/net/webdav/prop.go
deleted file mode 100644
index 4d7be34..0000000
--- a/vendor/golang.org/x/net/webdav/prop.go
+++ /dev/null
@@ -1,470 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package webdav
-
-import (
- "bytes"
- "encoding/xml"
- "errors"
- "fmt"
- "io"
- "mime"
- "net/http"
- "os"
- "path/filepath"
- "strconv"
-
- "golang.org/x/net/context"
-)
-
-// Proppatch describes a property update instruction as defined in RFC 4918.
-// See http://www.webdav.org/specs/rfc4918.html#METHOD_PROPPATCH
-type Proppatch struct {
- // Remove specifies whether this patch removes properties. If it does not
- // remove them, it sets them.
- Remove bool
- // Props contains the properties to be set or removed.
- Props []Property
-}
-
-// Propstat describes a XML propstat element as defined in RFC 4918.
-// See http://www.webdav.org/specs/rfc4918.html#ELEMENT_propstat
-type Propstat struct {
- // Props contains the properties for which Status applies.
- Props []Property
-
- // Status defines the HTTP status code of the properties in Prop.
- // Allowed values include, but are not limited to the WebDAV status
- // code extensions for HTTP/1.1.
- // http://www.webdav.org/specs/rfc4918.html#status.code.extensions.to.http11
- Status int
-
- // XMLError contains the XML representation of the optional error element.
- // XML content within this field must not rely on any predefined
- // namespace declarations or prefixes. If empty, the XML error element
- // is omitted.
- XMLError string
-
- // ResponseDescription contains the contents of the optional
- // responsedescription field. If empty, the XML element is omitted.
- ResponseDescription string
-}
-
-// makePropstats returns a slice containing those of x and y whose Props slice
-// is non-empty. If both are empty, it returns a slice containing an otherwise
-// zero Propstat whose HTTP status code is 200 OK.
-func makePropstats(x, y Propstat) []Propstat {
- pstats := make([]Propstat, 0, 2)
- if len(x.Props) != 0 {
- pstats = append(pstats, x)
- }
- if len(y.Props) != 0 {
- pstats = append(pstats, y)
- }
- if len(pstats) == 0 {
- pstats = append(pstats, Propstat{
- Status: http.StatusOK,
- })
- }
- return pstats
-}
-
-// DeadPropsHolder holds the dead properties of a resource.
-//
-// Dead properties are those properties that are explicitly defined. In
-// comparison, live properties, such as DAV:getcontentlength, are implicitly
-// defined by the underlying resource, and cannot be explicitly overridden or
-// removed. See the Terminology section of
-// http://www.webdav.org/specs/rfc4918.html#rfc.section.3
-//
-// There is a whitelist of the names of live properties. This package handles
-// all live properties, and will only pass non-whitelisted names to the Patch
-// method of DeadPropsHolder implementations.
-type DeadPropsHolder interface {
- // DeadProps returns a copy of the dead properties held.
- DeadProps() (map[xml.Name]Property, error)
-
- // Patch patches the dead properties held.
- //
- // Patching is atomic; either all or no patches succeed. It returns (nil,
- // non-nil) if an internal server error occurred, otherwise the Propstats
- // collectively contain one Property for each proposed patch Property. If
- // all patches succeed, Patch returns a slice of length one and a Propstat
- // element with a 200 OK HTTP status code. If none succeed, for reasons
- // other than an internal server error, no Propstat has status 200 OK.
- //
- // For more details on when various HTTP status codes apply, see
- // http://www.webdav.org/specs/rfc4918.html#PROPPATCH-status
- Patch([]Proppatch) ([]Propstat, error)
-}
-
-// liveProps contains all supported, protected DAV: properties.
-var liveProps = map[xml.Name]struct {
- // findFn implements the propfind function of this property. If nil,
- // it indicates a hidden property.
- findFn func(context.Context, FileSystem, LockSystem, string, os.FileInfo) (string, error)
- // dir is true if the property applies to directories.
- dir bool
-}{
- {Space: "DAV:", Local: "resourcetype"}: {
- findFn: findResourceType,
- dir: true,
- },
- {Space: "DAV:", Local: "displayname"}: {
- findFn: findDisplayName,
- dir: true,
- },
- {Space: "DAV:", Local: "getcontentlength"}: {
- findFn: findContentLength,
- dir: false,
- },
- {Space: "DAV:", Local: "getlastmodified"}: {
- findFn: findLastModified,
- // http://webdav.org/specs/rfc4918.html#PROPERTY_getlastmodified
- // suggests that getlastmodified should only apply to GETable
- // resources, and this package does not support GET on directories.
- //
- // Nonetheless, some WebDAV clients expect child directories to be
- // sortable by getlastmodified date, so this value is true, not false.
- // See golang.org/issue/15334.
- dir: true,
- },
- {Space: "DAV:", Local: "creationdate"}: {
- findFn: nil,
- dir: false,
- },
- {Space: "DAV:", Local: "getcontentlanguage"}: {
- findFn: nil,
- dir: false,
- },
- {Space: "DAV:", Local: "getcontenttype"}: {
- findFn: findContentType,
- dir: false,
- },
- {Space: "DAV:", Local: "getetag"}: {
- findFn: findETag,
- // findETag implements ETag as the concatenated hex values of a file's
- // modification time and size. This is not a reliable synchronization
- // mechanism for directories, so we do not advertise getetag for DAV
- // collections.
- dir: false,
- },
-
- // TODO: The lockdiscovery property requires LockSystem to list the
- // active locks on a resource.
- {Space: "DAV:", Local: "lockdiscovery"}: {},
- {Space: "DAV:", Local: "supportedlock"}: {
- findFn: findSupportedLock,
- dir: true,
- },
-}
-
-// TODO(nigeltao) merge props and allprop?
-
-// Props returns the status of the properties named pnames for resource name.
-//
-// Each Propstat has a unique status and each property name will only be part
-// of one Propstat element.
-func props(ctx context.Context, fs FileSystem, ls LockSystem, name string, pnames []xml.Name) ([]Propstat, error) {
- f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
- if err != nil {
- return nil, err
- }
- defer f.Close()
- fi, err := f.Stat()
- if err != nil {
- return nil, err
- }
- isDir := fi.IsDir()
-
- var deadProps map[xml.Name]Property
- if dph, ok := f.(DeadPropsHolder); ok {
- deadProps, err = dph.DeadProps()
- if err != nil {
- return nil, err
- }
- }
-
- pstatOK := Propstat{Status: http.StatusOK}
- pstatNotFound := Propstat{Status: http.StatusNotFound}
- for _, pn := range pnames {
- // If this file has dead properties, check if they contain pn.
- if dp, ok := deadProps[pn]; ok {
- pstatOK.Props = append(pstatOK.Props, dp)
- continue
- }
- // Otherwise, it must either be a live property or we don't know it.
- if prop := liveProps[pn]; prop.findFn != nil && (prop.dir || !isDir) {
- innerXML, err := prop.findFn(ctx, fs, ls, name, fi)
- if err != nil {
- return nil, err
- }
- pstatOK.Props = append(pstatOK.Props, Property{
- XMLName: pn,
- InnerXML: []byte(innerXML),
- })
- } else {
- pstatNotFound.Props = append(pstatNotFound.Props, Property{
- XMLName: pn,
- })
- }
- }
- return makePropstats(pstatOK, pstatNotFound), nil
-}
-
-// Propnames returns the property names defined for resource name.
-func propnames(ctx context.Context, fs FileSystem, ls LockSystem, name string) ([]xml.Name, error) {
- f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
- if err != nil {
- return nil, err
- }
- defer f.Close()
- fi, err := f.Stat()
- if err != nil {
- return nil, err
- }
- isDir := fi.IsDir()
-
- var deadProps map[xml.Name]Property
- if dph, ok := f.(DeadPropsHolder); ok {
- deadProps, err = dph.DeadProps()
- if err != nil {
- return nil, err
- }
- }
-
- pnames := make([]xml.Name, 0, len(liveProps)+len(deadProps))
- for pn, prop := range liveProps {
- if prop.findFn != nil && (prop.dir || !isDir) {
- pnames = append(pnames, pn)
- }
- }
- for pn := range deadProps {
- pnames = append(pnames, pn)
- }
- return pnames, nil
-}
-
-// Allprop returns the properties defined for resource name and the properties
-// named in include.
-//
-// Note that RFC 4918 defines 'allprop' to return the DAV: properties defined
-// within the RFC plus dead properties. Other live properties should only be
-// returned if they are named in 'include'.
-//
-// See http://www.webdav.org/specs/rfc4918.html#METHOD_PROPFIND
-func allprop(ctx context.Context, fs FileSystem, ls LockSystem, name string, include []xml.Name) ([]Propstat, error) {
- pnames, err := propnames(ctx, fs, ls, name)
- if err != nil {
- return nil, err
- }
- // Add names from include if they are not already covered in pnames.
- nameset := make(map[xml.Name]bool)
- for _, pn := range pnames {
- nameset[pn] = true
- }
- for _, pn := range include {
- if !nameset[pn] {
- pnames = append(pnames, pn)
- }
- }
- return props(ctx, fs, ls, name, pnames)
-}
-
-// Patch patches the properties of resource name. The return values are
-// constrained in the same manner as DeadPropsHolder.Patch.
-func patch(ctx context.Context, fs FileSystem, ls LockSystem, name string, patches []Proppatch) ([]Propstat, error) {
- conflict := false
-loop:
- for _, patch := range patches {
- for _, p := range patch.Props {
- if _, ok := liveProps[p.XMLName]; ok {
- conflict = true
- break loop
- }
- }
- }
- if conflict {
- pstatForbidden := Propstat{
- Status: http.StatusForbidden,
- XMLError: `<D:cannot-modify-protected-property xmlns:D="DAV:"/>`,
- }
- pstatFailedDep := Propstat{
- Status: StatusFailedDependency,
- }
- for _, patch := range patches {
- for _, p := range patch.Props {
- if _, ok := liveProps[p.XMLName]; ok {
- pstatForbidden.Props = append(pstatForbidden.Props, Property{XMLName: p.XMLName})
- } else {
- pstatFailedDep.Props = append(pstatFailedDep.Props, Property{XMLName: p.XMLName})
- }
- }
- }
- return makePropstats(pstatForbidden, pstatFailedDep), nil
- }
-
- f, err := fs.OpenFile(ctx, name, os.O_RDWR, 0)
- if err != nil {
- return nil, err
- }
- defer f.Close()
- if dph, ok := f.(DeadPropsHolder); ok {
- ret, err := dph.Patch(patches)
- if err != nil {
- return nil, err
- }
- // http://www.webdav.org/specs/rfc4918.html#ELEMENT_propstat says that
- // "The contents of the prop XML element must only list the names of
- // properties to which the result in the status element applies."
- for _, pstat := range ret {
- for i, p := range pstat.Props {
- pstat.Props[i] = Property{XMLName: p.XMLName}
- }
- }
- return ret, nil
- }
- // The file doesn't implement the optional DeadPropsHolder interface, so
- // all patches are forbidden.
- pstat := Propstat{Status: http.StatusForbidden}
- for _, patch := range patches {
- for _, p := range patch.Props {
- pstat.Props = append(pstat.Props, Property{XMLName: p.XMLName})
- }
- }
- return []Propstat{pstat}, nil
-}
-
-func escapeXML(s string) string {
- for i := 0; i < len(s); i++ {
- // As an optimization, if s contains only ASCII letters, digits or a
- // few special characters, the escaped value is s itself and we don't
- // need to allocate a buffer and convert between string and []byte.
- switch c := s[i]; {
- case c == ' ' || c == '_' ||
- ('+' <= c && c <= '9') || // Digits as well as + , - . and /
- ('A' <= c && c <= 'Z') ||
- ('a' <= c && c <= 'z'):
- continue
- }
- // Otherwise, go through the full escaping process.
- var buf bytes.Buffer
- xml.EscapeText(&buf, []byte(s))
- return buf.String()
- }
- return s
-}
-
-func findResourceType(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
- if fi.IsDir() {
- return `<D:collection xmlns:D="DAV:"/>`, nil
- }
- return "", nil
-}
-
-func findDisplayName(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
- if slashClean(name) == "/" {
- // Hide the real name of a possibly prefixed root directory.
- return "", nil
- }
- return escapeXML(fi.Name()), nil
-}
-
-func findContentLength(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
- return strconv.FormatInt(fi.Size(), 10), nil
-}
-
-func findLastModified(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
- return fi.ModTime().UTC().Format(http.TimeFormat), nil
-}
-
-// ErrNotImplemented should be returned by optional interfaces if they
-// want the original implementation to be used.
-var ErrNotImplemented = errors.New("not implemented")
-
-// ContentTyper is an optional interface for the os.FileInfo
-// objects returned by the FileSystem.
-//
-// If this interface is defined then it will be used to read the
-// content type from the object.
-//
-// If this interface is not defined the file will be opened and the
-// content type will be guessed from the initial contents of the file.
-type ContentTyper interface {
- // ContentType returns the content type for the file.
- //
- // If this returns error ErrNotImplemented then the error will
- // be ignored and the base implementation will be used
- // instead.
- ContentType(ctx context.Context) (string, error)
-}
-
-func findContentType(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
- if do, ok := fi.(ContentTyper); ok {
- ctype, err := do.ContentType(ctx)
- if err != ErrNotImplemented {
- return ctype, err
- }
- }
- f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
- if err != nil {
- return "", err
- }
- defer f.Close()
- // This implementation is based on serveContent's code in the standard net/http package.
- ctype := mime.TypeByExtension(filepath.Ext(name))
- if ctype != "" {
- return ctype, nil
- }
- // Read a chunk to decide between utf-8 text and binary.
- var buf [512]byte
- n, err := io.ReadFull(f, buf[:])
- if err != nil && err != io.EOF && err != io.ErrUnexpectedEOF {
- return "", err
- }
- ctype = http.DetectContentType(buf[:n])
- // Rewind file.
- _, err = f.Seek(0, os.SEEK_SET)
- return ctype, err
-}
-
-// ETager is an optional interface for the os.FileInfo objects
-// returned by the FileSystem.
-//
-// If this interface is defined then it will be used to read the ETag
-// for the object.
-//
-// If this interface is not defined an ETag will be computed using the
-// ModTime() and the Size() methods of the os.FileInfo object.
-type ETager interface {
- // ETag returns an ETag for the file. This should be of the
- // form "value" or W/"value"
- //
- // If this returns error ErrNotImplemented then the error will
- // be ignored and the base implementation will be used
- // instead.
- ETag(ctx context.Context) (string, error)
-}
-
-func findETag(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
- if do, ok := fi.(ETager); ok {
- etag, err := do.ETag(ctx)
- if err != ErrNotImplemented {
- return etag, err
- }
- }
- // The Apache http 2.4 web server by default concatenates the
- // modification time and size of a file. We replicate the heuristic
- // with nanosecond granularity.
- return fmt.Sprintf(`"%x%x"`, fi.ModTime().UnixNano(), fi.Size()), nil
-}
-
-func findSupportedLock(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
- return `` +
- `<D:lockentry xmlns:D="DAV:">` +
- `<D:lockscope><D:exclusive/></D:lockscope>` +
- `<D:locktype><D:write/></D:locktype>` +
- `</D:lockentry>`, nil
-}
diff --git a/vendor/golang.org/x/net/webdav/webdav.go b/vendor/golang.org/x/net/webdav/webdav.go
deleted file mode 100644
index 7b56687..0000000
--- a/vendor/golang.org/x/net/webdav/webdav.go
+++ /dev/null
@@ -1,702 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package webdav provides a WebDAV server implementation.
-package webdav // import "golang.org/x/net/webdav"
-
-import (
- "errors"
- "fmt"
- "io"
- "net/http"
- "net/url"
- "os"
- "path"
- "strings"
- "time"
-)
-
-type Handler struct {
- // Prefix is the URL path prefix to strip from WebDAV resource paths.
- Prefix string
- // FileSystem is the virtual file system.
- FileSystem FileSystem
- // LockSystem is the lock management system.
- LockSystem LockSystem
- // Logger is an optional error logger. If non-nil, it will be called
- // for all HTTP requests.
- Logger func(*http.Request, error)
-}
-
-func (h *Handler) stripPrefix(p string) (string, int, error) {
- if h.Prefix == "" {
- return p, http.StatusOK, nil
- }
- if r := strings.TrimPrefix(p, h.Prefix); len(r) < len(p) {
- return r, http.StatusOK, nil
- }
- return p, http.StatusNotFound, errPrefixMismatch
-}
-
-func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
- status, err := http.StatusBadRequest, errUnsupportedMethod
- if h.FileSystem == nil {
- status, err = http.StatusInternalServerError, errNoFileSystem
- } else if h.LockSystem == nil {
- status, err = http.StatusInternalServerError, errNoLockSystem
- } else {
- switch r.Method {
- case "OPTIONS":
- status, err = h.handleOptions(w, r)
- case "GET", "HEAD", "POST":
- status, err = h.handleGetHeadPost(w, r)
- case "DELETE":
- status, err = h.handleDelete(w, r)
- case "PUT":
- status, err = h.handlePut(w, r)
- case "MKCOL":
- status, err = h.handleMkcol(w, r)
- case "COPY", "MOVE":
- status, err = h.handleCopyMove(w, r)
- case "LOCK":
- status, err = h.handleLock(w, r)
- case "UNLOCK":
- status, err = h.handleUnlock(w, r)
- case "PROPFIND":
- status, err = h.handlePropfind(w, r)
- case "PROPPATCH":
- status, err = h.handleProppatch(w, r)
- }
- }
-
- if status != 0 {
- w.WriteHeader(status)
- if status != http.StatusNoContent {
- w.Write([]byte(StatusText(status)))
- }
- }
- if h.Logger != nil {
- h.Logger(r, err)
- }
-}
-
-func (h *Handler) lock(now time.Time, root string) (token string, status int, err error) {
- token, err = h.LockSystem.Create(now, LockDetails{
- Root: root,
- Duration: infiniteTimeout,
- ZeroDepth: true,
- })
- if err != nil {
- if err == ErrLocked {
- return "", StatusLocked, err
- }
- return "", http.StatusInternalServerError, err
- }
- return token, 0, nil
-}
-
-func (h *Handler) confirmLocks(r *http.Request, src, dst string) (release func(), status int, err error) {
- hdr := r.Header.Get("If")
- if hdr == "" {
- // An empty If header means that the client hasn't previously created locks.
- // Even if this client doesn't care about locks, we still need to check that
- // the resources aren't locked by another client, so we create temporary
- // locks that would conflict with another client's locks. These temporary
- // locks are unlocked at the end of the HTTP request.
- now, srcToken, dstToken := time.Now(), "", ""
- if src != "" {
- srcToken, status, err = h.lock(now, src)
- if err != nil {
- return nil, status, err
- }
- }
- if dst != "" {
- dstToken, status, err = h.lock(now, dst)
- if err != nil {
- if srcToken != "" {
- h.LockSystem.Unlock(now, srcToken)
- }
- return nil, status, err
- }
- }
-
- return func() {
- if dstToken != "" {
- h.LockSystem.Unlock(now, dstToken)
- }
- if srcToken != "" {
- h.LockSystem.Unlock(now, srcToken)
- }
- }, 0, nil
- }
-
- ih, ok := parseIfHeader(hdr)
- if !ok {
- return nil, http.StatusBadRequest, errInvalidIfHeader
- }
- // ih is a disjunction (OR) of ifLists, so any ifList will do.
- for _, l := range ih.lists {
- lsrc := l.resourceTag
- if lsrc == "" {
- lsrc = src
- } else {
- u, err := url.Parse(lsrc)
- if err != nil {
- continue
- }
- if u.Host != r.Host {
- continue
- }
- lsrc, status, err = h.stripPrefix(u.Path)
- if err != nil {
- return nil, status, err
- }
- }
- release, err = h.LockSystem.Confirm(time.Now(), lsrc, dst, l.conditions...)
- if err == ErrConfirmationFailed {
- continue
- }
- if err != nil {
- return nil, http.StatusInternalServerError, err
- }
- return release, 0, nil
- }
- // Section 10.4.1 says that "If this header is evaluated and all state lists
- // fail, then the request must fail with a 412 (Precondition Failed) status."
- // We follow the spec even though the cond_put_corrupt_token test case from
- // the litmus test warns on seeing a 412 instead of a 423 (Locked).
- return nil, http.StatusPreconditionFailed, ErrLocked
-}
-
-func (h *Handler) handleOptions(w http.ResponseWriter, r *http.Request) (status int, err error) {
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- ctx := getContext(r)
- allow := "OPTIONS, LOCK, PUT, MKCOL"
- if fi, err := h.FileSystem.Stat(ctx, reqPath); err == nil {
- if fi.IsDir() {
- allow = "OPTIONS, LOCK, DELETE, PROPPATCH, COPY, MOVE, UNLOCK, PROPFIND"
- } else {
- allow = "OPTIONS, LOCK, GET, HEAD, POST, DELETE, PROPPATCH, COPY, MOVE, UNLOCK, PROPFIND, PUT"
- }
- }
- w.Header().Set("Allow", allow)
- // http://www.webdav.org/specs/rfc4918.html#dav.compliance.classes
- w.Header().Set("DAV", "1, 2")
- // http://msdn.microsoft.com/en-au/library/cc250217.aspx
- w.Header().Set("MS-Author-Via", "DAV")
- return 0, nil
-}
-
-func (h *Handler) handleGetHeadPost(w http.ResponseWriter, r *http.Request) (status int, err error) {
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- // TODO: check locks for read-only access??
- ctx := getContext(r)
- f, err := h.FileSystem.OpenFile(ctx, reqPath, os.O_RDONLY, 0)
- if err != nil {
- return http.StatusNotFound, err
- }
- defer f.Close()
- fi, err := f.Stat()
- if err != nil {
- return http.StatusNotFound, err
- }
- if fi.IsDir() {
- return http.StatusMethodNotAllowed, nil
- }
- etag, err := findETag(ctx, h.FileSystem, h.LockSystem, reqPath, fi)
- if err != nil {
- return http.StatusInternalServerError, err
- }
- w.Header().Set("ETag", etag)
- // Let ServeContent determine the Content-Type header.
- http.ServeContent(w, r, reqPath, fi.ModTime(), f)
- return 0, nil
-}
-
-func (h *Handler) handleDelete(w http.ResponseWriter, r *http.Request) (status int, err error) {
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- release, status, err := h.confirmLocks(r, reqPath, "")
- if err != nil {
- return status, err
- }
- defer release()
-
- ctx := getContext(r)
-
- // TODO: return MultiStatus where appropriate.
-
- // "godoc os RemoveAll" says that "If the path does not exist, RemoveAll
- // returns nil (no error)." WebDAV semantics are that it should return a
- // "404 Not Found". We therefore have to Stat before we RemoveAll.
- if _, err := h.FileSystem.Stat(ctx, reqPath); err != nil {
- if os.IsNotExist(err) {
- return http.StatusNotFound, err
- }
- return http.StatusMethodNotAllowed, err
- }
- if err := h.FileSystem.RemoveAll(ctx, reqPath); err != nil {
- return http.StatusMethodNotAllowed, err
- }
- return http.StatusNoContent, nil
-}
-
-func (h *Handler) handlePut(w http.ResponseWriter, r *http.Request) (status int, err error) {
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- release, status, err := h.confirmLocks(r, reqPath, "")
- if err != nil {
- return status, err
- }
- defer release()
- // TODO(rost): Support the If-Match, If-None-Match headers? See bradfitz'
- // comments in http.checkEtag.
- ctx := getContext(r)
-
- f, err := h.FileSystem.OpenFile(ctx, reqPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666)
- if err != nil {
- return http.StatusNotFound, err
- }
- _, copyErr := io.Copy(f, r.Body)
- fi, statErr := f.Stat()
- closeErr := f.Close()
- // TODO(rost): Returning 405 Method Not Allowed might not be appropriate.
- if copyErr != nil {
- return http.StatusMethodNotAllowed, copyErr
- }
- if statErr != nil {
- return http.StatusMethodNotAllowed, statErr
- }
- if closeErr != nil {
- return http.StatusMethodNotAllowed, closeErr
- }
- etag, err := findETag(ctx, h.FileSystem, h.LockSystem, reqPath, fi)
- if err != nil {
- return http.StatusInternalServerError, err
- }
- w.Header().Set("ETag", etag)
- return http.StatusCreated, nil
-}
-
-func (h *Handler) handleMkcol(w http.ResponseWriter, r *http.Request) (status int, err error) {
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- release, status, err := h.confirmLocks(r, reqPath, "")
- if err != nil {
- return status, err
- }
- defer release()
-
- ctx := getContext(r)
-
- if r.ContentLength > 0 {
- return http.StatusUnsupportedMediaType, nil
- }
- if err := h.FileSystem.Mkdir(ctx, reqPath, 0777); err != nil {
- if os.IsNotExist(err) {
- return http.StatusConflict, err
- }
- return http.StatusMethodNotAllowed, err
- }
- return http.StatusCreated, nil
-}
-
-func (h *Handler) handleCopyMove(w http.ResponseWriter, r *http.Request) (status int, err error) {
- hdr := r.Header.Get("Destination")
- if hdr == "" {
- return http.StatusBadRequest, errInvalidDestination
- }
- u, err := url.Parse(hdr)
- if err != nil {
- return http.StatusBadRequest, errInvalidDestination
- }
- if u.Host != r.Host {
- return http.StatusBadGateway, errInvalidDestination
- }
-
- src, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
-
- dst, status, err := h.stripPrefix(u.Path)
- if err != nil {
- return status, err
- }
-
- if dst == "" {
- return http.StatusBadGateway, errInvalidDestination
- }
- if dst == src {
- return http.StatusForbidden, errDestinationEqualsSource
- }
-
- ctx := getContext(r)
-
- if r.Method == "COPY" {
- // Section 7.5.1 says that a COPY only needs to lock the destination,
- // not both destination and source. Strictly speaking, this is racy,
- // even though a COPY doesn't modify the source, if a concurrent
- // operation modifies the source. However, the litmus test explicitly
- // checks that COPYing a locked-by-another source is OK.
- release, status, err := h.confirmLocks(r, "", dst)
- if err != nil {
- return status, err
- }
- defer release()
-
- // Section 9.8.3 says that "The COPY method on a collection without a Depth
- // header must act as if a Depth header with value "infinity" was included".
- depth := infiniteDepth
- if hdr := r.Header.Get("Depth"); hdr != "" {
- depth = parseDepth(hdr)
- if depth != 0 && depth != infiniteDepth {
- // Section 9.8.3 says that "A client may submit a Depth header on a
- // COPY on a collection with a value of "0" or "infinity"."
- return http.StatusBadRequest, errInvalidDepth
- }
- }
- return copyFiles(ctx, h.FileSystem, src, dst, r.Header.Get("Overwrite") != "F", depth, 0)
- }
-
- release, status, err := h.confirmLocks(r, src, dst)
- if err != nil {
- return status, err
- }
- defer release()
-
- // Section 9.9.2 says that "The MOVE method on a collection must act as if
- // a "Depth: infinity" header was used on it. A client must not submit a
- // Depth header on a MOVE on a collection with any value but "infinity"."
- if hdr := r.Header.Get("Depth"); hdr != "" {
- if parseDepth(hdr) != infiniteDepth {
- return http.StatusBadRequest, errInvalidDepth
- }
- }
- return moveFiles(ctx, h.FileSystem, src, dst, r.Header.Get("Overwrite") == "T")
-}
-
-func (h *Handler) handleLock(w http.ResponseWriter, r *http.Request) (retStatus int, retErr error) {
- duration, err := parseTimeout(r.Header.Get("Timeout"))
- if err != nil {
- return http.StatusBadRequest, err
- }
- li, status, err := readLockInfo(r.Body)
- if err != nil {
- return status, err
- }
-
- ctx := getContext(r)
- token, ld, now, created := "", LockDetails{}, time.Now(), false
- if li == (lockInfo{}) {
- // An empty lockInfo means to refresh the lock.
- ih, ok := parseIfHeader(r.Header.Get("If"))
- if !ok {
- return http.StatusBadRequest, errInvalidIfHeader
- }
- if len(ih.lists) == 1 && len(ih.lists[0].conditions) == 1 {
- token = ih.lists[0].conditions[0].Token
- }
- if token == "" {
- return http.StatusBadRequest, errInvalidLockToken
- }
- ld, err = h.LockSystem.Refresh(now, token, duration)
- if err != nil {
- if err == ErrNoSuchLock {
- return http.StatusPreconditionFailed, err
- }
- return http.StatusInternalServerError, err
- }
-
- } else {
- // Section 9.10.3 says that "If no Depth header is submitted on a LOCK request,
- // then the request MUST act as if a "Depth:infinity" had been submitted."
- depth := infiniteDepth
- if hdr := r.Header.Get("Depth"); hdr != "" {
- depth = parseDepth(hdr)
- if depth != 0 && depth != infiniteDepth {
- // Section 9.10.3 says that "Values other than 0 or infinity must not be
- // used with the Depth header on a LOCK method".
- return http.StatusBadRequest, errInvalidDepth
- }
- }
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- ld = LockDetails{
- Root: reqPath,
- Duration: duration,
- OwnerXML: li.Owner.InnerXML,
- ZeroDepth: depth == 0,
- }
- token, err = h.LockSystem.Create(now, ld)
- if err != nil {
- if err == ErrLocked {
- return StatusLocked, err
- }
- return http.StatusInternalServerError, err
- }
- defer func() {
- if retErr != nil {
- h.LockSystem.Unlock(now, token)
- }
- }()
-
- // Create the resource if it didn't previously exist.
- if _, err := h.FileSystem.Stat(ctx, reqPath); err != nil {
- f, err := h.FileSystem.OpenFile(ctx, reqPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666)
- if err != nil {
- // TODO: detect missing intermediate dirs and return http.StatusConflict?
- return http.StatusInternalServerError, err
- }
- f.Close()
- created = true
- }
-
- // http://www.webdav.org/specs/rfc4918.html#HEADER_Lock-Token says that the
- // Lock-Token value is a Coded-URL. We add angle brackets.
- w.Header().Set("Lock-Token", "<"+token+">")
- }
-
- w.Header().Set("Content-Type", "application/xml; charset=utf-8")
- if created {
- // This is "w.WriteHeader(http.StatusCreated)" and not "return
- // http.StatusCreated, nil" because we write our own (XML) response to w
- // and Handler.ServeHTTP would otherwise write "Created".
- w.WriteHeader(http.StatusCreated)
- }
- writeLockInfo(w, token, ld)
- return 0, nil
-}
-
-func (h *Handler) handleUnlock(w http.ResponseWriter, r *http.Request) (status int, err error) {
- // http://www.webdav.org/specs/rfc4918.html#HEADER_Lock-Token says that the
- // Lock-Token value is a Coded-URL. We strip its angle brackets.
- t := r.Header.Get("Lock-Token")
- if len(t) < 2 || t[0] != '<' || t[len(t)-1] != '>' {
- return http.StatusBadRequest, errInvalidLockToken
- }
- t = t[1 : len(t)-1]
-
- switch err = h.LockSystem.Unlock(time.Now(), t); err {
- case nil:
- return http.StatusNoContent, err
- case ErrForbidden:
- return http.StatusForbidden, err
- case ErrLocked:
- return StatusLocked, err
- case ErrNoSuchLock:
- return http.StatusConflict, err
- default:
- return http.StatusInternalServerError, err
- }
-}
-
-func (h *Handler) handlePropfind(w http.ResponseWriter, r *http.Request) (status int, err error) {
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- ctx := getContext(r)
- fi, err := h.FileSystem.Stat(ctx, reqPath)
- if err != nil {
- if os.IsNotExist(err) {
- return http.StatusNotFound, err
- }
- return http.StatusMethodNotAllowed, err
- }
- depth := infiniteDepth
- if hdr := r.Header.Get("Depth"); hdr != "" {
- depth = parseDepth(hdr)
- if depth == invalidDepth {
- return http.StatusBadRequest, errInvalidDepth
- }
- }
- pf, status, err := readPropfind(r.Body)
- if err != nil {
- return status, err
- }
-
- mw := multistatusWriter{w: w}
-
- walkFn := func(reqPath string, info os.FileInfo, err error) error {
- if err != nil {
- return err
- }
- var pstats []Propstat
- if pf.Propname != nil {
- pnames, err := propnames(ctx, h.FileSystem, h.LockSystem, reqPath)
- if err != nil {
- return err
- }
- pstat := Propstat{Status: http.StatusOK}
- for _, xmlname := range pnames {
- pstat.Props = append(pstat.Props, Property{XMLName: xmlname})
- }
- pstats = append(pstats, pstat)
- } else if pf.Allprop != nil {
- pstats, err = allprop(ctx, h.FileSystem, h.LockSystem, reqPath, pf.Prop)
- } else {
- pstats, err = props(ctx, h.FileSystem, h.LockSystem, reqPath, pf.Prop)
- }
- if err != nil {
- return err
- }
- return mw.write(makePropstatResponse(path.Join(h.Prefix, reqPath), pstats))
- }
-
- walkErr := walkFS(ctx, h.FileSystem, depth, reqPath, fi, walkFn)
- closeErr := mw.close()
- if walkErr != nil {
- return http.StatusInternalServerError, walkErr
- }
- if closeErr != nil {
- return http.StatusInternalServerError, closeErr
- }
- return 0, nil
-}
-
-func (h *Handler) handleProppatch(w http.ResponseWriter, r *http.Request) (status int, err error) {
- reqPath, status, err := h.stripPrefix(r.URL.Path)
- if err != nil {
- return status, err
- }
- release, status, err := h.confirmLocks(r, reqPath, "")
- if err != nil {
- return status, err
- }
- defer release()
-
- ctx := getContext(r)
-
- if _, err := h.FileSystem.Stat(ctx, reqPath); err != nil {
- if os.IsNotExist(err) {
- return http.StatusNotFound, err
- }
- return http.StatusMethodNotAllowed, err
- }
- patches, status, err := readProppatch(r.Body)
- if err != nil {
- return status, err
- }
- pstats, err := patch(ctx, h.FileSystem, h.LockSystem, reqPath, patches)
- if err != nil {
- return http.StatusInternalServerError, err
- }
- mw := multistatusWriter{w: w}
- writeErr := mw.write(makePropstatResponse(r.URL.Path, pstats))
- closeErr := mw.close()
- if writeErr != nil {
- return http.StatusInternalServerError, writeErr
- }
- if closeErr != nil {
- return http.StatusInternalServerError, closeErr
- }
- return 0, nil
-}
-
-func makePropstatResponse(href string, pstats []Propstat) *response {
- resp := response{
- Href: []string{(&url.URL{Path: href}).EscapedPath()},
- Propstat: make([]propstat, 0, len(pstats)),
- }
- for _, p := range pstats {
- var xmlErr *xmlError
- if p.XMLError != "" {
- xmlErr = &xmlError{InnerXML: []byte(p.XMLError)}
- }
- resp.Propstat = append(resp.Propstat, propstat{
- Status: fmt.Sprintf("HTTP/1.1 %d %s", p.Status, StatusText(p.Status)),
- Prop: p.Props,
- ResponseDescription: p.ResponseDescription,
- Error: xmlErr,
- })
- }
- return &resp
-}
-
-const (
- infiniteDepth = -1
- invalidDepth = -2
-)
-
-// parseDepth maps the strings "0", "1" and "infinity" to 0, 1 and
-// infiniteDepth. Parsing any other string returns invalidDepth.
-//
-// Different WebDAV methods have further constraints on valid depths:
-// - PROPFIND has no further restrictions, as per section 9.1.
-// - COPY accepts only "0" or "infinity", as per section 9.8.3.
-// - MOVE accepts only "infinity", as per section 9.9.2.
-// - LOCK accepts only "0" or "infinity", as per section 9.10.3.
-// These constraints are enforced by the handleXxx methods.
-func parseDepth(s string) int {
- switch s {
- case "0":
- return 0
- case "1":
- return 1
- case "infinity":
- return infiniteDepth
- }
- return invalidDepth
-}
-
-// http://www.webdav.org/specs/rfc4918.html#status.code.extensions.to.http11
-const (
- StatusMulti = 207
- StatusUnprocessableEntity = 422
- StatusLocked = 423
- StatusFailedDependency = 424
- StatusInsufficientStorage = 507
-)
-
-func StatusText(code int) string {
- switch code {
- case StatusMulti:
- return "Multi-Status"
- case StatusUnprocessableEntity:
- return "Unprocessable Entity"
- case StatusLocked:
- return "Locked"
- case StatusFailedDependency:
- return "Failed Dependency"
- case StatusInsufficientStorage:
- return "Insufficient Storage"
- }
- return http.StatusText(code)
-}
-
-var (
- errDestinationEqualsSource = errors.New("webdav: destination equals source")
- errDirectoryNotEmpty = errors.New("webdav: directory not empty")
- errInvalidDepth = errors.New("webdav: invalid depth")
- errInvalidDestination = errors.New("webdav: invalid destination")
- errInvalidIfHeader = errors.New("webdav: invalid If header")
- errInvalidLockInfo = errors.New("webdav: invalid lock info")
- errInvalidLockToken = errors.New("webdav: invalid lock token")
- errInvalidPropfind = errors.New("webdav: invalid propfind")
- errInvalidProppatch = errors.New("webdav: invalid proppatch")
- errInvalidResponse = errors.New("webdav: invalid response")
- errInvalidTimeout = errors.New("webdav: invalid timeout")
- errNoFileSystem = errors.New("webdav: no file system")
- errNoLockSystem = errors.New("webdav: no lock system")
- errNotADirectory = errors.New("webdav: not a directory")
- errPrefixMismatch = errors.New("webdav: prefix mismatch")
- errRecursionTooDeep = errors.New("webdav: recursion too deep")
- errUnsupportedLockInfo = errors.New("webdav: unsupported lock info")
- errUnsupportedMethod = errors.New("webdav: unsupported method")
-)
diff --git a/vendor/golang.org/x/net/webdav/xml.go b/vendor/golang.org/x/net/webdav/xml.go
deleted file mode 100644
index 790dc81..0000000
--- a/vendor/golang.org/x/net/webdav/xml.go
+++ /dev/null
@@ -1,519 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package webdav
-
-// The XML encoding is covered by Section 14.
-// http://www.webdav.org/specs/rfc4918.html#xml.element.definitions
-
-import (
- "bytes"
- "encoding/xml"
- "fmt"
- "io"
- "net/http"
- "time"
-
- // As of https://go-review.googlesource.com/#/c/12772/ which was submitted
- // in July 2015, this package uses an internal fork of the standard
- // library's encoding/xml package, due to changes in the way namespaces
- // were encoded. Such changes were introduced in the Go 1.5 cycle, but were
- // rolled back in response to https://github.com/golang/go/issues/11841
- //
- // However, this package's exported API, specifically the Property and
- // DeadPropsHolder types, need to refer to the standard library's version
- // of the xml.Name type, as code that imports this package cannot refer to
- // the internal version.
- //
- // This file therefore imports both the internal and external versions, as
- // ixml and xml, and converts between them.
- //
- // In the long term, this package should use the standard library's version
- // only, and the internal fork deleted, once
- // https://github.com/golang/go/issues/13400 is resolved.
- ixml "golang.org/x/net/webdav/internal/xml"
-)
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_lockinfo
-type lockInfo struct {
- XMLName ixml.Name `xml:"lockinfo"`
- Exclusive *struct{} `xml:"lockscope>exclusive"`
- Shared *struct{} `xml:"lockscope>shared"`
- Write *struct{} `xml:"locktype>write"`
- Owner owner `xml:"owner"`
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_owner
-type owner struct {
- InnerXML string `xml:",innerxml"`
-}
-
-func readLockInfo(r io.Reader) (li lockInfo, status int, err error) {
- c := &countingReader{r: r}
- if err = ixml.NewDecoder(c).Decode(&li); err != nil {
- if err == io.EOF {
- if c.n == 0 {
- // An empty body means to refresh the lock.
- // http://www.webdav.org/specs/rfc4918.html#refreshing-locks
- return lockInfo{}, 0, nil
- }
- err = errInvalidLockInfo
- }
- return lockInfo{}, http.StatusBadRequest, err
- }
- // We only support exclusive (non-shared) write locks. In practice, these are
- // the only types of locks that seem to matter.
- if li.Exclusive == nil || li.Shared != nil || li.Write == nil {
- return lockInfo{}, http.StatusNotImplemented, errUnsupportedLockInfo
- }
- return li, 0, nil
-}
-
-type countingReader struct {
- n int
- r io.Reader
-}
-
-func (c *countingReader) Read(p []byte) (int, error) {
- n, err := c.r.Read(p)
- c.n += n
- return n, err
-}
-
-func writeLockInfo(w io.Writer, token string, ld LockDetails) (int, error) {
- depth := "infinity"
- if ld.ZeroDepth {
- depth = "0"
- }
- timeout := ld.Duration / time.Second
- return fmt.Fprintf(w, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"+
- "<D:prop xmlns:D=\"DAV:\"><D:lockdiscovery><D:activelock>\n"+
- " <D:locktype><D:write/></D:locktype>\n"+
- " <D:lockscope><D:exclusive/></D:lockscope>\n"+
- " <D:depth>%s</D:depth>\n"+
- " <D:owner>%s</D:owner>\n"+
- " <D:timeout>Second-%d</D:timeout>\n"+
- " <D:locktoken><D:href>%s</D:href></D:locktoken>\n"+
- " <D:lockroot><D:href>%s</D:href></D:lockroot>\n"+
- "</D:activelock></D:lockdiscovery></D:prop>",
- depth, ld.OwnerXML, timeout, escape(token), escape(ld.Root),
- )
-}
-
-func escape(s string) string {
- for i := 0; i < len(s); i++ {
- switch s[i] {
- case '"', '&', '\'', '<', '>':
- b := bytes.NewBuffer(nil)
- ixml.EscapeText(b, []byte(s))
- return b.String()
- }
- }
- return s
-}
-
-// Next returns the next token, if any, in the XML stream of d.
-// RFC 4918 requires to ignore comments, processing instructions
-// and directives.
-// http://www.webdav.org/specs/rfc4918.html#property_values
-// http://www.webdav.org/specs/rfc4918.html#xml-extensibility
-func next(d *ixml.Decoder) (ixml.Token, error) {
- for {
- t, err := d.Token()
- if err != nil {
- return t, err
- }
- switch t.(type) {
- case ixml.Comment, ixml.Directive, ixml.ProcInst:
- continue
- default:
- return t, nil
- }
- }
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_prop (for propfind)
-type propfindProps []xml.Name
-
-// UnmarshalXML appends the property names enclosed within start to pn.
-//
-// It returns an error if start does not contain any properties or if
-// properties contain values. Character data between properties is ignored.
-func (pn *propfindProps) UnmarshalXML(d *ixml.Decoder, start ixml.StartElement) error {
- for {
- t, err := next(d)
- if err != nil {
- return err
- }
- switch t.(type) {
- case ixml.EndElement:
- if len(*pn) == 0 {
- return fmt.Errorf("%s must not be empty", start.Name.Local)
- }
- return nil
- case ixml.StartElement:
- name := t.(ixml.StartElement).Name
- t, err = next(d)
- if err != nil {
- return err
- }
- if _, ok := t.(ixml.EndElement); !ok {
- return fmt.Errorf("unexpected token %T", t)
- }
- *pn = append(*pn, xml.Name(name))
- }
- }
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propfind
-type propfind struct {
- XMLName ixml.Name `xml:"DAV: propfind"`
- Allprop *struct{} `xml:"DAV: allprop"`
- Propname *struct{} `xml:"DAV: propname"`
- Prop propfindProps `xml:"DAV: prop"`
- Include propfindProps `xml:"DAV: include"`
-}
-
-func readPropfind(r io.Reader) (pf propfind, status int, err error) {
- c := countingReader{r: r}
- if err = ixml.NewDecoder(&c).Decode(&pf); err != nil {
- if err == io.EOF {
- if c.n == 0 {
- // An empty body means to propfind allprop.
- // http://www.webdav.org/specs/rfc4918.html#METHOD_PROPFIND
- return propfind{Allprop: new(struct{})}, 0, nil
- }
- err = errInvalidPropfind
- }
- return propfind{}, http.StatusBadRequest, err
- }
-
- if pf.Allprop == nil && pf.Include != nil {
- return propfind{}, http.StatusBadRequest, errInvalidPropfind
- }
- if pf.Allprop != nil && (pf.Prop != nil || pf.Propname != nil) {
- return propfind{}, http.StatusBadRequest, errInvalidPropfind
- }
- if pf.Prop != nil && pf.Propname != nil {
- return propfind{}, http.StatusBadRequest, errInvalidPropfind
- }
- if pf.Propname == nil && pf.Allprop == nil && pf.Prop == nil {
- return propfind{}, http.StatusBadRequest, errInvalidPropfind
- }
- return pf, 0, nil
-}
-
-// Property represents a single DAV resource property as defined in RFC 4918.
-// See http://www.webdav.org/specs/rfc4918.html#data.model.for.resource.properties
-type Property struct {
- // XMLName is the fully qualified name that identifies this property.
- XMLName xml.Name
-
- // Lang is an optional xml:lang attribute.
- Lang string `xml:"xml:lang,attr,omitempty"`
-
- // InnerXML contains the XML representation of the property value.
- // See http://www.webdav.org/specs/rfc4918.html#property_values
- //
- // Property values of complex type or mixed-content must have fully
- // expanded XML namespaces or be self-contained with according
- // XML namespace declarations. They must not rely on any XML
- // namespace declarations within the scope of the XML document,
- // even including the DAV: namespace.
- InnerXML []byte `xml:",innerxml"`
-}
-
-// ixmlProperty is the same as the Property type except it holds an ixml.Name
-// instead of an xml.Name.
-type ixmlProperty struct {
- XMLName ixml.Name
- Lang string `xml:"xml:lang,attr,omitempty"`
- InnerXML []byte `xml:",innerxml"`
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_error
-// See multistatusWriter for the "D:" namespace prefix.
-type xmlError struct {
- XMLName ixml.Name `xml:"D:error"`
- InnerXML []byte `xml:",innerxml"`
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propstat
-// See multistatusWriter for the "D:" namespace prefix.
-type propstat struct {
- Prop []Property `xml:"D:prop>_ignored_"`
- Status string `xml:"D:status"`
- Error *xmlError `xml:"D:error"`
- ResponseDescription string `xml:"D:responsedescription,omitempty"`
-}
-
-// ixmlPropstat is the same as the propstat type except it holds an ixml.Name
-// instead of an xml.Name.
-type ixmlPropstat struct {
- Prop []ixmlProperty `xml:"D:prop>_ignored_"`
- Status string `xml:"D:status"`
- Error *xmlError `xml:"D:error"`
- ResponseDescription string `xml:"D:responsedescription,omitempty"`
-}
-
-// MarshalXML prepends the "D:" namespace prefix on properties in the DAV: namespace
-// before encoding. See multistatusWriter.
-func (ps propstat) MarshalXML(e *ixml.Encoder, start ixml.StartElement) error {
- // Convert from a propstat to an ixmlPropstat.
- ixmlPs := ixmlPropstat{
- Prop: make([]ixmlProperty, len(ps.Prop)),
- Status: ps.Status,
- Error: ps.Error,
- ResponseDescription: ps.ResponseDescription,
- }
- for k, prop := range ps.Prop {
- ixmlPs.Prop[k] = ixmlProperty{
- XMLName: ixml.Name(prop.XMLName),
- Lang: prop.Lang,
- InnerXML: prop.InnerXML,
- }
- }
-
- for k, prop := range ixmlPs.Prop {
- if prop.XMLName.Space == "DAV:" {
- prop.XMLName = ixml.Name{Space: "", Local: "D:" + prop.XMLName.Local}
- ixmlPs.Prop[k] = prop
- }
- }
- // Distinct type to avoid infinite recursion of MarshalXML.
- type newpropstat ixmlPropstat
- return e.EncodeElement(newpropstat(ixmlPs), start)
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_response
-// See multistatusWriter for the "D:" namespace prefix.
-type response struct {
- XMLName ixml.Name `xml:"D:response"`
- Href []string `xml:"D:href"`
- Propstat []propstat `xml:"D:propstat"`
- Status string `xml:"D:status,omitempty"`
- Error *xmlError `xml:"D:error"`
- ResponseDescription string `xml:"D:responsedescription,omitempty"`
-}
-
-// MultistatusWriter marshals one or more Responses into a XML
-// multistatus response.
-// See http://www.webdav.org/specs/rfc4918.html#ELEMENT_multistatus
-// TODO(rsto, mpl): As a workaround, the "D:" namespace prefix, defined as
-// "DAV:" on this element, is prepended on the nested response, as well as on all
-// its nested elements. All property names in the DAV: namespace are prefixed as
-// well. This is because some versions of Mini-Redirector (on windows 7) ignore
-// elements with a default namespace (no prefixed namespace). A less intrusive fix
-// should be possible after golang.org/cl/11074. See https://golang.org/issue/11177
-type multistatusWriter struct {
- // ResponseDescription contains the optional responsedescription
- // of the multistatus XML element. Only the latest content before
- // close will be emitted. Empty response descriptions are not
- // written.
- responseDescription string
-
- w http.ResponseWriter
- enc *ixml.Encoder
-}
-
-// Write validates and emits a DAV response as part of a multistatus response
-// element.
-//
-// It sets the HTTP status code of its underlying http.ResponseWriter to 207
-// (Multi-Status) and populates the Content-Type header. If r is the
-// first, valid response to be written, Write prepends the XML representation
-// of r with a multistatus tag. Callers must call close after the last response
-// has been written.
-func (w *multistatusWriter) write(r *response) error {
- switch len(r.Href) {
- case 0:
- return errInvalidResponse
- case 1:
- if len(r.Propstat) > 0 != (r.Status == "") {
- return errInvalidResponse
- }
- default:
- if len(r.Propstat) > 0 || r.Status == "" {
- return errInvalidResponse
- }
- }
- err := w.writeHeader()
- if err != nil {
- return err
- }
- return w.enc.Encode(r)
-}
-
-// writeHeader writes a XML multistatus start element on w's underlying
-// http.ResponseWriter and returns the result of the write operation.
-// After the first write attempt, writeHeader becomes a no-op.
-func (w *multistatusWriter) writeHeader() error {
- if w.enc != nil {
- return nil
- }
- w.w.Header().Add("Content-Type", "text/xml; charset=utf-8")
- w.w.WriteHeader(StatusMulti)
- _, err := fmt.Fprintf(w.w, `<?xml version="1.0" encoding="UTF-8"?>`)
- if err != nil {
- return err
- }
- w.enc = ixml.NewEncoder(w.w)
- return w.enc.EncodeToken(ixml.StartElement{
- Name: ixml.Name{
- Space: "DAV:",
- Local: "multistatus",
- },
- Attr: []ixml.Attr{{
- Name: ixml.Name{Space: "xmlns", Local: "D"},
- Value: "DAV:",
- }},
- })
-}
-
-// Close completes the marshalling of the multistatus response. It returns
-// an error if the multistatus response could not be completed. If both the
-// return value and field enc of w are nil, then no multistatus response has
-// been written.
-func (w *multistatusWriter) close() error {
- if w.enc == nil {
- return nil
- }
- var end []ixml.Token
- if w.responseDescription != "" {
- name := ixml.Name{Space: "DAV:", Local: "responsedescription"}
- end = append(end,
- ixml.StartElement{Name: name},
- ixml.CharData(w.responseDescription),
- ixml.EndElement{Name: name},
- )
- }
- end = append(end, ixml.EndElement{
- Name: ixml.Name{Space: "DAV:", Local: "multistatus"},
- })
- for _, t := range end {
- err := w.enc.EncodeToken(t)
- if err != nil {
- return err
- }
- }
- return w.enc.Flush()
-}
-
-var xmlLangName = ixml.Name{Space: "http://www.w3.org/XML/1998/namespace", Local: "lang"}
-
-func xmlLang(s ixml.StartElement, d string) string {
- for _, attr := range s.Attr {
- if attr.Name == xmlLangName {
- return attr.Value
- }
- }
- return d
-}
-
-type xmlValue []byte
-
-func (v *xmlValue) UnmarshalXML(d *ixml.Decoder, start ixml.StartElement) error {
- // The XML value of a property can be arbitrary, mixed-content XML.
- // To make sure that the unmarshalled value contains all required
- // namespaces, we encode all the property value XML tokens into a
- // buffer. This forces the encoder to redeclare any used namespaces.
- var b bytes.Buffer
- e := ixml.NewEncoder(&b)
- for {
- t, err := next(d)
- if err != nil {
- return err
- }
- if e, ok := t.(ixml.EndElement); ok && e.Name == start.Name {
- break
- }
- if err = e.EncodeToken(t); err != nil {
- return err
- }
- }
- err := e.Flush()
- if err != nil {
- return err
- }
- *v = b.Bytes()
- return nil
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_prop (for proppatch)
-type proppatchProps []Property
-
-// UnmarshalXML appends the property names and values enclosed within start
-// to ps.
-//
-// An xml:lang attribute that is defined either on the DAV:prop or property
-// name XML element is propagated to the property's Lang field.
-//
-// UnmarshalXML returns an error if start does not contain any properties or if
-// property values contain syntactically incorrect XML.
-func (ps *proppatchProps) UnmarshalXML(d *ixml.Decoder, start ixml.StartElement) error {
- lang := xmlLang(start, "")
- for {
- t, err := next(d)
- if err != nil {
- return err
- }
- switch elem := t.(type) {
- case ixml.EndElement:
- if len(*ps) == 0 {
- return fmt.Errorf("%s must not be empty", start.Name.Local)
- }
- return nil
- case ixml.StartElement:
- p := Property{
- XMLName: xml.Name(t.(ixml.StartElement).Name),
- Lang: xmlLang(t.(ixml.StartElement), lang),
- }
- err = d.DecodeElement(((*xmlValue)(&p.InnerXML)), &elem)
- if err != nil {
- return err
- }
- *ps = append(*ps, p)
- }
- }
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_set
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_remove
-type setRemove struct {
- XMLName ixml.Name
- Lang string `xml:"xml:lang,attr,omitempty"`
- Prop proppatchProps `xml:"DAV: prop"`
-}
-
-// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propertyupdate
-type propertyupdate struct {
- XMLName ixml.Name `xml:"DAV: propertyupdate"`
- Lang string `xml:"xml:lang,attr,omitempty"`
- SetRemove []setRemove `xml:",any"`
-}
-
-func readProppatch(r io.Reader) (patches []Proppatch, status int, err error) {
- var pu propertyupdate
- if err = ixml.NewDecoder(r).Decode(&pu); err != nil {
- return nil, http.StatusBadRequest, err
- }
- for _, op := range pu.SetRemove {
- remove := false
- switch op.XMLName {
- case ixml.Name{Space: "DAV:", Local: "set"}:
- // No-op.
- case ixml.Name{Space: "DAV:", Local: "remove"}:
- for _, p := range op.Prop {
- if len(p.InnerXML) > 0 {
- return nil, http.StatusBadRequest, errInvalidProppatch
- }
- }
- remove = true
- default:
- return nil, http.StatusBadRequest, errInvalidProppatch
- }
- patches = append(patches, Proppatch{Remove: remove, Props: op.Prop})
- }
- return patches, 0, nil
-}