diff options
Diffstat (limited to 'vendor/github.com/godbus/dbus/auth_sha1.go')
-rw-r--r-- | vendor/github.com/godbus/dbus/auth_sha1.go | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/vendor/github.com/godbus/dbus/auth_sha1.go b/vendor/github.com/godbus/dbus/auth_sha1.go deleted file mode 100644 index df15b4611..000000000 --- a/vendor/github.com/godbus/dbus/auth_sha1.go +++ /dev/null @@ -1,102 +0,0 @@ -package dbus - -import ( - "bufio" - "bytes" - "crypto/rand" - "crypto/sha1" - "encoding/hex" - "os" -) - -// AuthCookieSha1 returns an Auth that authenticates as the given user with the -// DBUS_COOKIE_SHA1 mechanism. The home parameter should specify the home -// directory of the user. -func AuthCookieSha1(user, home string) Auth { - return authCookieSha1{user, home} -} - -type authCookieSha1 struct { - user, home string -} - -func (a authCookieSha1) FirstData() ([]byte, []byte, AuthStatus) { - b := make([]byte, 2*len(a.user)) - hex.Encode(b, []byte(a.user)) - return []byte("DBUS_COOKIE_SHA1"), b, AuthContinue -} - -func (a authCookieSha1) HandleData(data []byte) ([]byte, AuthStatus) { - challenge := make([]byte, len(data)/2) - _, err := hex.Decode(challenge, data) - if err != nil { - return nil, AuthError - } - b := bytes.Split(challenge, []byte{' '}) - if len(b) != 3 { - return nil, AuthError - } - context := b[0] - id := b[1] - svchallenge := b[2] - cookie := a.getCookie(context, id) - if cookie == nil { - return nil, AuthError - } - clchallenge := a.generateChallenge() - if clchallenge == nil { - return nil, AuthError - } - hash := sha1.New() - hash.Write(bytes.Join([][]byte{svchallenge, clchallenge, cookie}, []byte{':'})) - hexhash := make([]byte, 2*hash.Size()) - hex.Encode(hexhash, hash.Sum(nil)) - data = append(clchallenge, ' ') - data = append(data, hexhash...) - resp := make([]byte, 2*len(data)) - hex.Encode(resp, data) - return resp, AuthOk -} - -// getCookie searches for the cookie identified by id in context and returns -// the cookie content or nil. (Since HandleData can't return a specific error, -// but only whether an error occured, this function also doesn't bother to -// return an error.) -func (a authCookieSha1) getCookie(context, id []byte) []byte { - file, err := os.Open(a.home + "/.dbus-keyrings/" + string(context)) - if err != nil { - return nil - } - defer file.Close() - rd := bufio.NewReader(file) - for { - line, err := rd.ReadBytes('\n') - if err != nil { - return nil - } - line = line[:len(line)-1] - b := bytes.Split(line, []byte{' '}) - if len(b) != 3 { - return nil - } - if bytes.Equal(b[0], id) { - return b[2] - } - } -} - -// generateChallenge returns a random, hex-encoded challenge, or nil on error -// (see above). -func (a authCookieSha1) generateChallenge() []byte { - b := make([]byte, 16) - n, err := rand.Read(b) - if err != nil { - return nil - } - if n != 16 { - return nil - } - enc := make([]byte, 32) - hex.Encode(enc, b) - return enc -} |