From eae17147e143094e48050494b2da570f42d21986 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Mon, 1 May 2017 16:57:53 +0200 Subject: Reorder package --- file.go | 220 ---------------------------------------------------------------- 1 file changed, 220 deletions(-) delete mode 100644 file.go (limited to 'file.go') diff --git a/file.go b/file.go deleted file mode 100644 index 8c956ae..0000000 --- a/file.go +++ /dev/null @@ -1,220 +0,0 @@ -package signify - -import ( - "bufio" - "bytes" - "encoding/base64" - "errors" - "fmt" - "io" - "io/ioutil" - "os" - "strings" - - "dim13.org/signify/sig" -) - -type File struct { - Comment string - RawKey []byte - Message []byte -} - -const commentHdr = "untrusted comment:" - -var ( - ErrCommentSize = errors.New("comment line to long") - ErrUntrustedComment = errors.New("expected untrusted comment") -) - -func checkComment(comment string) error { - // compatibility with original version - if len(comment) > 1024 { - return ErrCommentSize - } - if !strings.HasPrefix(comment, commentHdr) { - return ErrUntrustedComment - } - return nil -} - -func (f *File) Embedded() bool { - return len(f.Message) > 0 -} - -func read(r io.Reader) (string, []byte, []byte, error) { - buf := bufio.NewReader(r) - comment, err := buf.ReadString('\n') - if err != nil { - return "", nil, nil, err - } - if err := checkComment(comment); err != nil { - return "", nil, nil, err - } - comment = strings.TrimSpace(comment[len(commentHdr):]) - raw, err := buf.ReadString('\n') - if err != nil { - return "", nil, nil, err - } - rawKey, err := base64.StdEncoding.DecodeString(raw) - if err != nil { - return "", nil, nil, err - } - message, err := ioutil.ReadAll(buf) - if err != nil { - return "", nil, nil, err - } - return comment, rawKey, message, nil -} - -func (f *File) ReadFrom(r io.Reader) (err error) { - f.Comment, f.RawKey, f.Message, err = read(r) - if err != nil { - return err - } - return nil -} - -func Parse(b []byte) (*File, error) { - r := bytes.NewReader(b) - f := new(File) - return f, f.ReadFrom(r) -} - -func ParseFile(fname string) (*File, error) { - fd, err := os.Open(fname) - if err != nil { - return nil, err - } - defer fd.Close() - f := new(File) - return f, f.ReadFrom(fd) -} - -func (f File) Bytes() ([]byte, error) { - buf := new(bytes.Buffer) - err := f.WriteTo(buf) - if err != nil { - return nil, err - } - return buf.Bytes(), nil -} - -func write(w io.Writer, comment string, key, message []byte) error { - fmt.Fprintln(w, commentHdr, comment) - fmt.Fprintln(w, base64.StdEncoding.EncodeToString(key)) - if message != nil { - w.Write(message) - } - return nil -} - -func (f File) WriteTo(w io.Writer) error { - return write(w, f.Comment, f.RawKey, f.Message) -} - -const ( - SecMode os.FileMode = 0600 - PubMode os.FileMode = 0644 -) - -func (f File) WriteFile(fname string, perm os.FileMode) error { - fd, err := os.OpenFile(fname, os.O_WRONLY|os.O_CREATE, perm) - if err != nil { - return err - } - defer fd.Close() - return f.WriteTo(fd) -} - -//////////////////////////////////////////////////////////////////////// - -func WriteEnc(fname, comment string, key *EncKey) error { - fd, err := os.OpenFile(fname, os.O_WRONLY|os.O_CREATE, SecMode) - if err != nil { - return err - } - defer fd.Close() - b, err := Marshal(key) - if err != nil { - return err - } - block := &sig.Block{ - Comment: comment + " secret key", - Bytes: b, - } - return sig.Encode(fd, block) -} - -func WritePub(fname, comment string, key *PubKey) error { - fd, err := os.OpenFile(fname, os.O_WRONLY|os.O_CREATE, PubMode) - if err != nil { - return err - } - defer fd.Close() - b, err := Marshal(key) - if err != nil { - return err - } - block := &sig.Block{ - Comment: comment + " public key", - Bytes: b, - } - return sig.Encode(fd, block) -} - -func WriteSig(fname, comment string, message []byte, key *Sig) error { - fd, err := os.OpenFile(fname, os.O_WRONLY|os.O_CREATE, PubMode) - if err != nil { - return err - } - defer fd.Close() - b, err := Marshal(key) - if err != nil { - return err - } - block := &sig.Block{ - Comment: "verify with " + comment, - Bytes: b, - Message: message, - } - return sig.Encode(fd, block) -} - -//////////////////////////////////////////////////////////////////////// - -func OpenEnc(fname string) (*EncKey, error) { - block, err := sig.DecodeFile(fname) - if err != nil { - return nil, err - } - key := new(EncKey) - if err := Unmarshal(block.Bytes, key); err != nil { - return nil, err - } - return key, nil -} - -func OpenPub(fname string) (*PubKey, error) { - block, err := sig.DecodeFile(fname) - if err != nil { - return nil, err - } - key := new(PubKey) - if err := Unmarshal(block.Bytes, key); err != nil { - return nil, err - } - return key, nil -} - -func OpenSig(fname string) (*Sig, error) { - block, err := sig.DecodeFile(fname) - if err != nil { - return nil, err - } - key := new(Sig) - if err := Unmarshal(block.Bytes, key); err != nil { - return nil, err - } - return key, nil -} -- cgit v1.2.3