Justine Alexandra Roberts Tunney
11 years ago
16 changed files with 26718 additions and 609 deletions
Split View
Diff Options
-
+34 -55README.md
-
+7 -9example/echo/echo_test.go
-
+4 -4example/echo2/echo2_test.go
-
+6 -7example/echo3/echo3_test.go
-
+1 -1example/options/options_test.go
-
+368 -154sip/dialog.go
-
+14 -0sip/errors.go
-
+38 -39sip/messages.go
-
+333 -263sip/msg.go
-
+25259 -0sip/msg_parse.go
-
+476 -0sip/msg_parse.rl
-
+117 -29sip/msg_test.go
-
+24 -26sip/route.go
-
+5 -15sip/transport.go
-
+23 -0sip/util.go
-
+9 -7sip/via.go
+ 34
- 55
README.md
View File
+ 7
- 9
example/echo/echo_test.go
View File
+ 4
- 4
example/echo2/echo2_test.go
View File
+ 6
- 7
example/echo3/echo3_test.go
View File
+ 1
- 1
example/options/options_test.go
View File
+ 368
- 154
sip/dialog.go
View File
+ 14
- 0
sip/errors.go
View File
| @ -0,0 +1,14 @@ | |||
| package sip | |||
| import ( | |||
| "fmt" | |||
| ) | |||
| // ResponseError encapsulates an unhandled >=400 SIP error response. | |||
| type ResponseError struct { | |||
| Msg *Msg | |||
| } | |||
| func (err *ResponseError) Error() string { | |||
| return fmt.Sprintf("%s: %d", err.Msg.Status, err.Msg.Phrase) | |||
| } | |||
+ 38
- 39
sip/messages.go
View File
+ 333
- 263
sip/msg.go
View File
+ 25259
- 0
sip/msg_parse.go
File diff suppressed because it is too large
View File
+ 476
- 0
sip/msg_parse.rl
View File
| @ -0,0 +1,476 @@ | |||
| package sip | |||
| import ( | |||
| // "bytes" | |||
| "errors" | |||
| "fmt" | |||
| ) | |||
| %% machine msg; | |||
| %% write data; | |||
| // ParseMsg turns a a SIP message into a data structure. | |||
| func ParseMsg(s string) (msg *Msg, err error) { | |||
| if s == "" { | |||
| return nil, errors.New("Empty SIP message") | |||
| } | |||
| return ParseMsgBytes([]byte(s)) | |||
| } | |||
| // ParseMsg turns a a SIP message byte slice into a data structure. | |||
| func ParseMsgBytes(data []byte) (msg *Msg, err error) { | |||
| if data == nil { | |||
| return nil, nil | |||
| } | |||
| msg = new(Msg) | |||
| cs := 0 | |||
| p := 0 | |||
| pe := len(data) | |||
| line := 1 | |||
| linep := 0 | |||
| buf := make([]byte, len(data)) | |||
| amt := 0 | |||
| mark := 0 | |||
| clen := 0 | |||
| // var b1 string | |||
| var hex byte | |||
| %%{ | |||
| action break { | |||
| fbreak; | |||
| } | |||
| action mark { | |||
| mark = p | |||
| } | |||
| action start { | |||
| amt = 0 | |||
| } | |||
| action append { | |||
| buf[amt] = fc | |||
| amt++ | |||
| } | |||
| action collapse { | |||
| amt = appendCollapse(buf, amt, fc) | |||
| } | |||
| action hexHi { | |||
| hex = unhex(fc) * 16 | |||
| } | |||
| action hexLo { | |||
| hex += unhex(fc) | |||
| buf[amt] = hex | |||
| amt++ | |||
| } | |||
| action lower { | |||
| amt = appendLower(buf, amt, fc) | |||
| } | |||
| action Method { | |||
| msg.Method = string(data[mark:p]) | |||
| } | |||
| action VersionMajor { | |||
| msg.VersionMajor = msg.VersionMajor * 10 + (fc - 0x30) | |||
| } | |||
| action VersionMinor { | |||
| msg.VersionMinor = msg.VersionMinor * 10 + (fc - 0x30) | |||
| } | |||
| action RequestURI { | |||
| msg.Request, err = ParseURIBytes(data[mark:p]) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action StatusCode { | |||
| msg.Status = msg.Status * 10 + (int(fc) - 0x30) | |||
| } | |||
| action ReasonPhrase { | |||
| msg.Phrase = string(buf[0:amt]) | |||
| } | |||
| action extHeaderName { | |||
| b1 = string(bytes.ToLower(data[mark:p])) | |||
| } | |||
| action extHeaderValue { | |||
| if msg.Headers == nil { | |||
| msg.Headers = Headers{} | |||
| } | |||
| msg.Headers[b1] = string(data[mark:p]) | |||
| } | |||
| action Accept { | |||
| msg.Accept = string(data[mark:p]) | |||
| } | |||
| action AcceptValue { | |||
| msg.AcceptContact = string(data[mark:p]) | |||
| } | |||
| action AcceptEncoding { | |||
| msg.AcceptEncoding = string(data[mark:p]) | |||
| } | |||
| action AcceptLanguage { | |||
| msg.AcceptLanguage = string(data[mark:p]) | |||
| } | |||
| action Allow { | |||
| msg.Allow = string(data[mark:p]) | |||
| } | |||
| action AllowEvents { | |||
| msg.AllowEvents = string(data[mark:p]) | |||
| } | |||
| action AlertInfo { | |||
| msg.AlertInfo = string(data[mark:p]) | |||
| } | |||
| action AuthenticationInfo { | |||
| msg.AuthenticationInfo = string(data[mark:p]) | |||
| } | |||
| action Authorization { | |||
| msg.Authorization = string(data[mark:p]) | |||
| } | |||
| action CallID { | |||
| msg.CallID = string(data[mark:p]) | |||
| } | |||
| action Contact { | |||
| msg.Contact, err = ParseAddr(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action ContentDisposition { | |||
| msg.ContentDisposition = string(data[mark:p]) | |||
| } | |||
| action ContentLanguage { | |||
| msg.ContentLanguage = string(data[mark:p]) | |||
| } | |||
| action ContentLength { | |||
| clen = clen * 10 + (int(fc) - 0x30) | |||
| } | |||
| action ContentEncoding { | |||
| msg.ContentEncoding = string(data[mark:p]) | |||
| } | |||
| action ContentType { | |||
| msg.ContentType = string(data[mark:p]) | |||
| } | |||
| action CSeq { | |||
| msg.CSeq = msg.CSeq * 10 + (int(fc) - 0x30) | |||
| } | |||
| action CSeqMethod { | |||
| msg.CSeqMethod = string(data[mark:p]) | |||
| } | |||
| action CallInfo { | |||
| msg.CallInfo = string(data[mark:p]) | |||
| } | |||
| action Date { | |||
| msg.Date = string(data[mark:p]) | |||
| } | |||
| action ErrorInfo { | |||
| msg.ErrorInfo = string(data[mark:p]) | |||
| } | |||
| action Event { | |||
| msg.Event = string(data[mark:p]) | |||
| } | |||
| action Expires { | |||
| msg.Expires = msg.Expires * 10 + (int(fc) - 0x30) | |||
| } | |||
| action From { | |||
| msg.From, err = ParseAddr(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action InReplyTo { | |||
| msg.InReplyTo = string(data[mark:p]) | |||
| } | |||
| action MaxForwardsZero { | |||
| msg.MaxForwards = 0 | |||
| } | |||
| action MaxForwards { | |||
| msg.MaxForwards = msg.MaxForwards * 10 + (int(fc) - 0x30) | |||
| } | |||
| action MinExpires { | |||
| msg.MinExpires = msg.MinExpires * 10 + (int(fc) - 0x30) | |||
| } | |||
| action ReplyTo { | |||
| msg.ReplyTo = string(data[mark:p]) | |||
| } | |||
| action MIMEVersion { | |||
| msg.MIMEVersion = string(data[mark:p]) | |||
| } | |||
| action Organization { | |||
| msg.Organization = string(data[mark:p]) | |||
| } | |||
| action PAssertedIdentity { | |||
| msg.PAssertedIdentity, err = ParseAddr(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action Priority { | |||
| msg.Priority = string(data[mark:p]) | |||
| } | |||
| action ProxyAuthenticate { | |||
| msg.ProxyAuthenticate = string(data[mark:p]) | |||
| } | |||
| action ProxyAuthorization { | |||
| msg.ProxyAuthorization = string(data[mark:p]) | |||
| } | |||
| action ProxyRequire { | |||
| msg.ProxyRequire = string(data[mark:p]) | |||
| } | |||
| action RecordRoute { | |||
| msg.RecordRoute, err = ParseAddr(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action ReferTo { | |||
| msg.ReferTo = string(data[mark:p]) | |||
| } | |||
| action ReferredBy { | |||
| msg.ReferredBy = string(data[mark:p]) | |||
| } | |||
| action RemotePartyID { | |||
| msg.RemotePartyID, err = ParseAddr(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action Require { | |||
| msg.Require = string(data[mark:p]) | |||
| } | |||
| action RetryAfter { | |||
| msg.RetryAfter = string(data[mark:p]) | |||
| } | |||
| action Route { | |||
| msg.Route, err = ParseAddr(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action Server { | |||
| msg.Server = string(data[mark:p]) | |||
| } | |||
| action Subject { | |||
| msg.Subject = string(data[mark:p]) | |||
| } | |||
| action Supported { | |||
| msg.Supported = string(data[mark:p]) | |||
| } | |||
| action Timestamp { | |||
| msg.Timestamp = string(data[mark:p]) | |||
| } | |||
| action To { | |||
| msg.To, err = ParseAddr(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action Unsupported { | |||
| msg.Unsupported = string(data[mark:p]) | |||
| } | |||
| action UserAgent { | |||
| msg.UserAgent = string(data[mark:p]) | |||
| } | |||
| action Via { | |||
| msg.Via, err = ParseVia(string(data[mark:p])) | |||
| if err != nil { return nil, err } | |||
| } | |||
| action Warning { | |||
| msg.Warning = string(data[mark:p]) | |||
| } | |||
| action WWWAuthenticate { | |||
| msg.WWWAuthenticate = string(data[mark:p]) | |||
| } | |||
| action lookAheadWSP { p + 2 < pe && (data[p+2] == ' ' || data[p+2] == '\t') } | |||
| # https://tools.ietf.org/html/rfc2234 | |||
| SP = " "; | |||
| HTAB = "\t"; | |||
| CR = "\r"; | |||
| LF = "\n" @{ line++; linep = p; }; | |||
| CRLF = CR LF; | |||
| WSP = SP | HTAB; | |||
| LWS = ( WSP* ( CR when lookAheadWSP ) LF )? WSP+; | |||
| SWS = LWS?; | |||
| UTF8_NONASCII = 0x80..0xFD; | |||
| UTF8 = 0x21..0x7F | UTF8_NONASCII; | |||
| UTF8_TRIM = ( UTF8+ (LWS* UTF8)* ) >start @collapse; | |||
| # https://tools.ietf.org/html/rfc3261#section-25.1 | |||
| reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" | "$" | "," ; | |||
| mark = "-" | "_" | "." | "!" | "~" | "*" | "'" | "(" | ")" ; | |||
| unreserved = alpha | digit | mark ; | |||
| HCOLON = WSP* ":" SWS ; | |||
| tokenc = alpha | digit | "-" | "." | "!" | "%" | "*" | "_" | |||
| | "+" | "`" | "'" | "~" ; | |||
| token = tokenc+ >mark ; | |||
| separators = "(" | ")" | "<" | ">" | "@" | "," | ";" | ":" | "\\" | |||
| | "\"" | "/" | "[" | "]" | "?" | "=" | "{" | "}" | SP | |||
| | HTAB ; | |||
| wordc = alpha | digit | "-" | "." | "!" | "%" | "*" | "_" | |||
| | "+" | "`" | "'" | "~" | "(" | ")" | "<" | ">" | ":" | |||
| | "\\" | "\"" | "/" | "[" | "]" | "?" | "{" | "}" ; | |||
| word = wordc+ ; | |||
| STAR = SWS "*" SWS ; | |||
| SLASH = SWS "/" SWS ; | |||
| EQUAL = SWS "=" SWS ; | |||
| LPAREN = SWS "(" SWS ; | |||
| RPAREN = SWS ")" SWS ; | |||
| RAQUOT = ">" SWS ; | |||
| LAQUOT = SWS "<" ; | |||
| COMMA = SWS "," SWS ; | |||
| SEMI = SWS ";" SWS ; | |||
| COLON = SWS ":" SWS ; | |||
| LDQUOT = SWS "\"" ; | |||
| RDQUOT = "\"" SWS ; | |||
| ctext = 0x21..0x27 | 0x2A..0x5B | 0x5D..0x7E | UTF8_NONASCII | LWS ; | |||
| quoted_pair = "\\" ( 0x00..0x09 | 0x0B..0x0C | 0x0E..0x7F ) ; | |||
| comment = LPAREN ( ctext | quoted_pair )* <: RPAREN ; # TODO(jart): Nested parens | |||
| qdtext = LWS | 0x21 | 0x23..0x5B | 0x5D..0x7E | UTF8_NONASCII ; | |||
| quoted_string = SWS "\"" ( qdtext | quoted_pair )* <: "\"" ; | |||
| escaped = "%" ( xdigit @hexHi ) ( xdigit @hexLo ) ; | |||
| uric = reserved | unreserved | escaped ; | |||
| uric_no_slash = unreserved | escaped | ";" | "?" | ":" | "@" | "&" | "=" | |||
| | "+" | "$" | "," ; | |||
| reasonc = reserved | unreserved | UTF8_NONASCII | SP | HTAB ; | |||
| reasonmc = escaped | ( reasonc @append ) ; | |||
| cid = word ( "@" word )? ; | |||
| Method = token %Method; | |||
| SIPVersionNo = digit+ @VersionMajor "." digit+ @VersionMinor; | |||
| RequestURI = ^SP+ >mark %RequestURI; | |||
| StatusCode = ( digit @StatusCode ) {3}; | |||
| ReasonPhrase = reasonmc+ >start %ReasonPhrase; | |||
| hval = ( UTF8 | LWS )* >mark; | |||
| extHeader = token %extHeaderName HCOLON hval %extHeaderValue; | |||
| # http://www.iana.org/assignments/sip-parameters/sip-parameters.xhtml | |||
| stdHeader = "Accept"i HCOLON hval %Accept | |||
| | ("Accept-Contact"i | "a"i) HCOLON hval %AcceptValue | |||
| | "Accept-Encoding"i HCOLON hval %AcceptEncoding | |||
| | "Accept-Language"i HCOLON hval %AcceptLanguage | |||
| | ("Allow"i | "u"i) HCOLON hval %Allow | |||
| | ("Allow-Events"i | "u"i) HCOLON hval %AllowEvents | |||
| | "Alert-Info"i HCOLON hval %AlertInfo | |||
| | "Authentication-Info"i HCOLON hval %AuthenticationInfo | |||
| | "Authorization"i HCOLON hval %Authorization | |||
| | ("Call-ID"i | "i"i) HCOLON cid >mark %CallID | |||
| | ("Contact"i | "m"i) HCOLON hval %Contact | |||
| | "Content-Disposition"i HCOLON hval %ContentDisposition | |||
| | "Content-Language"i HCOLON hval %ContentLanguage | |||
| | ("Content-Length"i | "l"i) HCOLON digit+ @ContentLength | |||
| | ("Content-Encoding"i | "e"i) HCOLON hval %ContentEncoding | |||
| | ("Content-Type"i | "c"i) HCOLON hval %ContentType | |||
| | "CSeq"i HCOLON (digit+ @CSeq) LWS token >mark %CSeqMethod | |||
| | "Call-Info"i HCOLON hval %CallInfo | |||
| | "Date"i HCOLON hval %Date | |||
| | "Error-Info"i HCOLON hval %ErrorInfo | |||
| | ("Event"i | "o"i) HCOLON hval %Event | |||
| | ("Expires"i | "l"i) HCOLON digit+ @Expires | |||
| | ("From"i | "f"i) HCOLON hval %From | |||
| | "In-Reply-To"i HCOLON hval %InReplyTo | |||
| | ("Max-Forwards"i | "l"i) HCOLON digit+ >MaxForwardsZero @MaxForwards | |||
| | ("Min-Expires"i | "l"i) HCOLON digit+ @MinExpires | |||
| | "Reply-To"i HCOLON hval %ReplyTo | |||
| | "MIME-Version"i HCOLON hval %MIMEVersion | |||
| | "Organization"i HCOLON hval %Organization | |||
| | "P-Asserted-Identity"i HCOLON hval %PAssertedIdentity | |||
| | "Priority"i HCOLON hval %Priority | |||
| | "Proxy-Authenticate"i HCOLON hval %ProxyAuthenticate | |||
| | "Proxy-Authorization"i HCOLON hval %ProxyAuthorization | |||
| | "Proxy-Require"i HCOLON hval %ProxyRequire | |||
| | "Record-Route"i HCOLON hval %RecordRoute | |||
| | ("Refer-To"i | "r"i) HCOLON hval %ReferTo | |||
| | ("Referred-By"i | "b"i) HCOLON hval %ReferredBy | |||
| | "Remote-Party-ID"i HCOLON hval %RemotePartyID | |||
| | "Require"i HCOLON hval %Require | |||
| | "Retry-After"i HCOLON hval %RetryAfter | |||
| | "Route"i HCOLON hval %Route | |||
| | "Server"i HCOLON hval %Server | |||
| | ("Subject"i | "s"i) HCOLON hval %Subject | |||
| | ("Supported"i | "k"i) HCOLON hval %Supported | |||
| | "Timestamp"i HCOLON hval %Timestamp | |||
| | ("To"i | "t"i) HCOLON hval %To | |||
| | "Unsupported"i HCOLON hval %Unsupported | |||
| | "User-Agent"i HCOLON hval %UserAgent | |||
| | ("Via"i | "v"i) HCOLON hval %Via | |||
| | "Warning"i HCOLON hval %Warning | |||
| | "WWW-Authenticate"i HCOLON hval %WWWAuthenticate | |||
| ; | |||
| header = stdHeader CRLF; | |||
| headers = header* CR LF @break; | |||
| SIPVersion = "SIP/" SIPVersionNo; | |||
| RequestLine = Method SP RequestURI SP SIPVersion CRLF; | |||
| StatusLine = SIPVersion SP StatusCode SP ReasonPhrase CRLF; | |||
| Request = RequestLine headers; | |||
| Response = StatusLine headers; | |||
| main := Request | Response; | |||
| write init; | |||
| write exec; | |||
| }%% | |||
| if cs < msg_first_final { | |||
| if p == pe { | |||
| return nil, errors.New(fmt.Sprintf("Incomplete SIP message: %s", data)) | |||
| } else { | |||
| return nil, errors.New(fmt.Sprintf("Error in SIP message at line %d offset %d:\n%s", line, p - linep, data)) | |||
| } | |||
| } | |||
| if clen > 0 { | |||
| if clen != len(data) - p { | |||
| return nil, errors.New(fmt.Sprintf("Content-Length incorrect: %d != %d", clen, len(data) - p)) | |||
| } | |||
| msg.Payload = string(data[p:len(data)]) | |||
| } | |||
| return msg, nil | |||
| } | |||