From 14bb08c1df8db9ec6c8a05520d4eee67971235d9 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Thu, 27 Sep 2018 20:03:23 +0200 Subject: mod tidy --- vendor/golang.org/x/net/webdav/prop.go | 470 --------------------------------- 1 file changed, 470 deletions(-) delete mode 100644 vendor/golang.org/x/net/webdav/prop.go (limited to 'vendor/golang.org/x/net/webdav/prop.go') 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: ``, - } - 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 ``, 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 `` + - `` + - `` + - `` + - ``, nil -} -- cgit v1.2.3