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How to use Len method of session Package
Best Selenoid code snippet using session.Len
handshake_messages.go
Source:handshake_messages.go 
...48 return m.raw49 }50 length := 2 + 32 + 1 + len(m.sessionId) + 2 + len(m.cipherSuites)*2 + 1 + len(m.compressionMethods)51 numExtensions := 052 extensionsLength := 053 if m.nextProtoNeg {54 numExtensions++55 }56 if m.ocspStapling {57 extensionsLength += 1 + 2 + 258 numExtensions++59 }60 if len(m.serverName) > 0 {61 extensionsLength += 5 + len(m.serverName)62 numExtensions++63 }64 if len(m.supportedCurves) > 0 {65 extensionsLength += 2 + 2*len(m.supportedCurves)66 numExtensions++67 }68 if len(m.supportedPoints) > 0 {69 extensionsLength += 1 + len(m.supportedPoints)70 numExtensions++71 }72 if m.ticketSupported {73 extensionsLength += len(m.sessionTicket)74 numExtensions++75 }76 if len(m.signatureAndHashes) > 0 {77 extensionsLength += 2 + 2*len(m.signatureAndHashes)78 numExtensions++79 }80 if m.secureRenegotiation {81 extensionsLength += 182 numExtensions++83 }84 if len(m.alpnProtocols) > 0 {85 extensionsLength += 286 for _, s := range m.alpnProtocols {87 if l := len(s); l == 0 || l > 255 {88 panic("invalid ALPN protocol")89 }90 extensionsLength++91 extensionsLength += len(s)92 }93 numExtensions++94 }95 if numExtensions > 0 {96 extensionsLength += 4 * numExtensions97 length += 2 + extensionsLength98 }99 x := make([]byte, 4+length)100 x[0] = typeClientHello101 x[1] = uint8(length >> 16)102 x[2] = uint8(length >> 8)103 x[3] = uint8(length)104 x[4] = uint8(m.vers >> 8)105 x[5] = uint8(m.vers)106 copy(x[6:38], m.random)107 x[38] = uint8(len(m.sessionId))108 copy(x[39:39+len(m.sessionId)], m.sessionId)109 y := x[39+len(m.sessionId):]110 y[0] = uint8(len(m.cipherSuites) >> 7)111 y[1] = uint8(len(m.cipherSuites) << 1)112 for i, suite := range m.cipherSuites {113 y[2+i*2] = uint8(suite >> 8)114 y[3+i*2] = uint8(suite)115 }116 z := y[2+len(m.cipherSuites)*2:]117 z[0] = uint8(len(m.compressionMethods))118 copy(z[1:], m.compressionMethods)119 z = z[1+len(m.compressionMethods):]120 if numExtensions > 0 {121 z[0] = byte(extensionsLength >> 8)122 z[1] = byte(extensionsLength)123 z = z[2:]124 }125 if m.nextProtoNeg {126 z[0] = byte(extensionNextProtoNeg >> 8)127 z[1] = byte(extensionNextProtoNeg & 0xff)128 // The length is always 0129 z = z[4:]130 }131 if len(m.serverName) > 0 {132 z[0] = byte(extensionServerName >> 8)133 z[1] = byte(extensionServerName & 0xff)134 l := len(m.serverName) + 5135 z[2] = byte(l >> 8)136 z[3] = byte(l)137 z = z[4:]138 // RFC 3546, section 3.1139 //140 // struct {141 // NameType name_type;142 // select (name_type) {143 // case host_name: HostName;144 // } name;145 // } ServerName;146 //147 // enum {148 // host_name(0), (255)149 // } NameType;150 //151 // opaque HostName<1..2^16-1>;152 //153 // struct {154 // ServerName server_name_list<1..2^16-1>155 // } ServerNameList;156 z[0] = byte((len(m.serverName) + 3) >> 8)157 z[1] = byte(len(m.serverName) + 3)158 z[3] = byte(len(m.serverName) >> 8)159 z[4] = byte(len(m.serverName))160 copy(z[5:], []byte(m.serverName))161 z = z[l:]162 }163 if m.ocspStapling {164 // RFC 4366, section 3.6165 z[0] = byte(extensionStatusRequest >> 8)166 z[1] = byte(extensionStatusRequest)167 z[2] = 0168 z[3] = 5169 z[4] = 1 // OCSP type170 // Two zero valued uint16s for the two lengths.171 z = z[9:]172 }173 if len(m.supportedCurves) > 0 {174 // http://tools.ietf.org/html/rfc4492#section-5.5.1175 z[0] = byte(extensionSupportedCurves >> 8)176 z[1] = byte(extensionSupportedCurves)177 l := 2 + 2*len(m.supportedCurves)178 z[2] = byte(l >> 8)179 z[3] = byte(l)180 l -= 2181 z[4] = byte(l >> 8)182 z[5] = byte(l)183 z = z[6:]184 for _, curve := range m.supportedCurves {185 z[0] = byte(curve >> 8)186 z[1] = byte(curve)187 z = z[2:]188 }189 }190 if len(m.supportedPoints) > 0 {191 // http://tools.ietf.org/html/rfc4492#section-5.5.2192 z[0] = byte(extensionSupportedPoints >> 8)193 z[1] = byte(extensionSupportedPoints)194 l := 1 + len(m.supportedPoints)195 z[2] = byte(l >> 8)196 z[3] = byte(l)197 l--198 z[4] = byte(l)199 z = z[5:]200 for _, pointFormat := range m.supportedPoints {201 z[0] = byte(pointFormat)202 z = z[1:]203 }204 }205 if m.ticketSupported {206 // http://tools.ietf.org/html/rfc5077#section-3.2207 z[0] = byte(extensionSessionTicket >> 8)208 z[1] = byte(extensionSessionTicket)209 l := len(m.sessionTicket)210 z[2] = byte(l >> 8)211 z[3] = byte(l)212 z = z[4:]213 copy(z, m.sessionTicket)214 z = z[len(m.sessionTicket):]215 }216 if len(m.signatureAndHashes) > 0 {217 // https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1218 z[0] = byte(extensionSignatureAlgorithms >> 8)219 z[1] = byte(extensionSignatureAlgorithms)220 l := 2 + 2*len(m.signatureAndHashes)221 z[2] = byte(l >> 8)222 z[3] = byte(l)223 z = z[4:]224 l -= 2225 z[0] = byte(l >> 8)226 z[1] = byte(l)227 z = z[2:]228 for _, sigAndHash := range m.signatureAndHashes {229 z[0] = sigAndHash.hash230 z[1] = sigAndHash.signature231 z = z[2:]232 }233 }234 if m.secureRenegotiation {235 z[0] = byte(extensionRenegotiationInfo >> 8)236 z[1] = byte(extensionRenegotiationInfo & 0xff)237 z[2] = 0238 z[3] = 1239 z = z[5:]240 }241 if len(m.alpnProtocols) > 0 {242 z[0] = byte(extensionALPN >> 8)243 z[1] = byte(extensionALPN & 0xff)244 lengths := z[2:]245 z = z[6:]246 stringsLength := 0247 for _, s := range m.alpnProtocols {248 l := len(s)249 z[0] = byte(l)250 copy(z[1:], s)251 z = z[1+l:]252 stringsLength += 1 + l253 }254 lengths[2] = byte(stringsLength >> 8)255 lengths[3] = byte(stringsLength)256 stringsLength += 2257 lengths[0] = byte(stringsLength >> 8)258 lengths[1] = byte(stringsLength)259 }260 m.raw = x261 return x262}263func (m *clientHelloMsg) unmarshal(data []byte) bool {264 if len(data) < 42 {265 return false266 }267 m.raw = data268 m.vers = uint16(data[4])<<8 | uint16(data[5])269 m.random = data[6:38]270 sessionIdLen := int(data[38])271 if sessionIdLen > 32 || len(data) < 39+sessionIdLen {272 return false273 }274 m.sessionId = data[39 : 39+sessionIdLen]275 data = data[39+sessionIdLen:]276 if len(data) < 2 {277 return false278 }279 // cipherSuiteLen is the number of bytes of cipher suite numbers. Since280 // they are uint16s, the number must be even.281 cipherSuiteLen := int(data[0])<<8 | int(data[1])282 if cipherSuiteLen%2 == 1 || len(data) < 2+cipherSuiteLen {283 return false284 }285 numCipherSuites := cipherSuiteLen / 2286 m.cipherSuites = make([]uint16, numCipherSuites)287 for i := 0; i < numCipherSuites; i++ {288 m.cipherSuites[i] = uint16(data[2+2*i])<<8 | uint16(data[3+2*i])289 if m.cipherSuites[i] == scsvRenegotiation {290 m.secureRenegotiation = true291 }292 }293 data = data[2+cipherSuiteLen:]294 if len(data) < 1 {295 return false296 }297 compressionMethodsLen := int(data[0])298 if len(data) < 1+compressionMethodsLen {299 return false300 }301 m.compressionMethods = data[1 : 1+compressionMethodsLen]302 data = data[1+compressionMethodsLen:]303 m.nextProtoNeg = false304 m.serverName = ""305 m.ocspStapling = false306 m.ticketSupported = false307 m.sessionTicket = nil308 m.signatureAndHashes = nil309 m.alpnProtocols = nil310 if len(data) == 0 {311 // ClientHello is optionally followed by extension data312 return true313 }314 if len(data) < 2 {315 return false316 }317 extensionsLength := int(data[0])<<8 | int(data[1])318 data = data[2:]319 if extensionsLength != len(data) {320 return false321 }322 for len(data) != 0 {323 if len(data) < 4 {324 return false325 }326 extension := uint16(data[0])<<8 | uint16(data[1])327 length := int(data[2])<<8 | int(data[3])328 data = data[4:]329 if len(data) < length {330 return false331 }332 switch extension {333 case extensionServerName:334 if length < 2 {335 return false336 }337 numNames := int(data[0])<<8 | int(data[1])338 d := data[2:]339 for i := 0; i < numNames; i++ {340 if len(d) < 3 {341 return false342 }343 nameType := d[0]344 nameLen := int(d[1])<<8 | int(d[2])345 d = d[3:]346 if len(d) < nameLen {347 return false348 }349 if nameType == 0 {350 m.serverName = string(d[0:nameLen])351 break352 }353 d = d[nameLen:]354 }355 case extensionNextProtoNeg:356 if length > 0 {357 return false358 }359 m.nextProtoNeg = true360 case extensionStatusRequest:361 m.ocspStapling = length > 0 && data[0] == statusTypeOCSP362 case extensionSupportedCurves:363 // http://tools.ietf.org/html/rfc4492#section-5.5.1364 if length < 2 {365 return false366 }367 l := int(data[0])<<8 | int(data[1])368 if l%2 == 1 || length != l+2 {369 return false370 }371 numCurves := l / 2372 m.supportedCurves = make([]CurveID, numCurves)373 d := data[2:]374 for i := 0; i < numCurves; i++ {375 m.supportedCurves[i] = CurveID(d[0])<<8 | CurveID(d[1])376 d = d[2:]377 }378 case extensionSupportedPoints:379 // http://tools.ietf.org/html/rfc4492#section-5.5.2380 if length < 1 {381 return false382 }383 l := int(data[0])384 if length != l+1 {385 return false386 }387 m.supportedPoints = make([]uint8, l)388 copy(m.supportedPoints, data[1:])389 case extensionSessionTicket:390 // http://tools.ietf.org/html/rfc5077#section-3.2391 m.ticketSupported = true392 m.sessionTicket = data[:length]393 case extensionSignatureAlgorithms:394 // https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1395 if length < 2 || length&1 != 0 {396 return false397 }398 l := int(data[0])<<8 | int(data[1])399 if l != length-2 {400 return false401 }402 n := l / 2403 d := data[2:]404 m.signatureAndHashes = make([]signatureAndHash, n)405 for i := range m.signatureAndHashes {406 m.signatureAndHashes[i].hash = d[0]407 m.signatureAndHashes[i].signature = d[1]408 d = d[2:]409 }410 case extensionRenegotiationInfo + 1:411 if length != 1 || data[0] != 0 {412 return false413 }414 m.secureRenegotiation = true415 case extensionALPN:416 if length < 2 {417 return false418 }419 l := int(data[0])<<8 | int(data[1])420 if l != length-2 {421 return false422 }423 d := data[2:length]424 for len(d) != 0 {425 stringLen := int(d[0])426 d = d[1:]427 if stringLen == 0 || stringLen > len(d) {428 return false429 }430 m.alpnProtocols = append(m.alpnProtocols, string(d[:stringLen]))431 d = d[stringLen:]432 }433 }434 data = data[length:]435 }436 return true437}438type serverHelloMsg struct {439 raw []byte440 vers uint16441 random []byte442 sessionId []byte443 cipherSuite uint16444 compressionMethod uint8445 nextProtoNeg bool446 nextProtos []string447 ocspStapling bool448 ticketSupported bool449 secureRenegotiation bool450 alpnProtocol string451}452func (m *serverHelloMsg) equal(i interface{}) bool {453 m1, ok := i.(*serverHelloMsg)454 if !ok {455 return false456 }457 return bytes.Equal(m.raw, m1.raw) &&458 m.vers == m1.vers &&459 bytes.Equal(m.random, m1.random) &&460 bytes.Equal(m.sessionId, m1.sessionId) &&461 m.cipherSuite == m1.cipherSuite &&462 m.compressionMethod == m1.compressionMethod &&463 m.nextProtoNeg == m1.nextProtoNeg &&464 eqStrings(m.nextProtos, m1.nextProtos) &&465 m.ocspStapling == m1.ocspStapling &&466 m.ticketSupported == m1.ticketSupported &&467 m.secureRenegotiation == m1.secureRenegotiation &&468 m.alpnProtocol == m1.alpnProtocol469}470func (m *serverHelloMsg) marshal() []byte {471 if m.raw != nil {472 return m.raw473 }474 length := 38 + len(m.sessionId)475 numExtensions := 0476 extensionsLength := 0477 nextProtoLen := 0478 if m.nextProtoNeg {479 numExtensions++480 for _, v := range m.nextProtos {481 nextProtoLen += len(v)482 }483 nextProtoLen += len(m.nextProtos)484 extensionsLength += nextProtoLen485 }486 if m.ocspStapling {487 numExtensions++488 }489 if m.ticketSupported {490 numExtensions++491 }492 if m.secureRenegotiation {493 extensionsLength += 1494 numExtensions++495 }496 if alpnLen := len(m.alpnProtocol); alpnLen > 0 {497 if alpnLen >= 256 {498 panic("invalid ALPN protocol")499 }500 extensionsLength += 2 + 1 + alpnLen501 numExtensions++502 }503 if numExtensions > 0 {504 extensionsLength += 4 * numExtensions505 length += 2 + extensionsLength506 }507 x := make([]byte, 4+length)508 x[0] = typeServerHello509 x[1] = uint8(length >> 16)510 x[2] = uint8(length >> 8)511 x[3] = uint8(length)512 x[4] = uint8(m.vers >> 8)513 x[5] = uint8(m.vers)514 copy(x[6:38], m.random)515 x[38] = uint8(len(m.sessionId))516 copy(x[39:39+len(m.sessionId)], m.sessionId)517 z := x[39+len(m.sessionId):]518 z[0] = uint8(m.cipherSuite >> 8)519 z[1] = uint8(m.cipherSuite)520 z[2] = uint8(m.compressionMethod)521 z = z[3:]522 if numExtensions > 0 {523 z[0] = byte(extensionsLength >> 8)524 z[1] = byte(extensionsLength)525 z = z[2:]526 }527 if m.nextProtoNeg {528 z[0] = byte(extensionNextProtoNeg >> 8)529 z[1] = byte(extensionNextProtoNeg & 0xff)530 z[2] = byte(nextProtoLen >> 8)531 z[3] = byte(nextProtoLen)532 z = z[4:]533 for _, v := range m.nextProtos {534 l := len(v)535 if l > 255 {536 l = 255537 }538 z[0] = byte(l)539 copy(z[1:], []byte(v[0:l]))540 z = z[1+l:]541 }542 }543 if m.ocspStapling {544 z[0] = byte(extensionStatusRequest >> 8)545 z[1] = byte(extensionStatusRequest)546 z = z[4:]547 }548 if m.ticketSupported {549 z[0] = byte(extensionSessionTicket >> 8)550 z[1] = byte(extensionSessionTicket)551 z = z[4:]552 }553 if m.secureRenegotiation {554 z[0] = byte(extensionRenegotiationInfo >> 8)555 z[1] = byte(extensionRenegotiationInfo & 0xff)556 z[2] = 0557 z[3] = 1558 z = z[5:]559 }560 if alpnLen := len(m.alpnProtocol); alpnLen > 0 {561 z[0] = byte(extensionALPN >> 8)562 z[1] = byte(extensionALPN & 0xff)563 l := 2 + 1 + alpnLen564 z[2] = byte(l >> 8)565 z[3] = byte(l)566 l -= 2567 z[4] = byte(l >> 8)568 z[5] = byte(l)569 l -= 1570 z[6] = byte(l)571 copy(z[7:], []byte(m.alpnProtocol))572 z = z[7+alpnLen:]573 }574 m.raw = x575 return x576}577func (m *serverHelloMsg) unmarshal(data []byte) bool {578 if len(data) < 42 {579 return false580 }581 m.raw = data582 m.vers = uint16(data[4])<<8 | uint16(data[5])583 m.random = data[6:38]584 sessionIdLen := int(data[38])585 if sessionIdLen > 32 || len(data) < 39+sessionIdLen {586 return false587 }588 m.sessionId = data[39 : 39+sessionIdLen]589 data = data[39+sessionIdLen:]590 if len(data) < 3 {591 return false592 }593 m.cipherSuite = uint16(data[0])<<8 | uint16(data[1])594 m.compressionMethod = data[2]595 data = data[3:]596 m.nextProtoNeg = false597 m.nextProtos = nil598 m.ocspStapling = false599 m.ticketSupported = false600 m.alpnProtocol = ""601 if len(data) == 0 {602 // ServerHello is optionally followed by extension data603 return true604 }605 if len(data) < 2 {606 return false607 }608 extensionsLength := int(data[0])<<8 | int(data[1])609 data = data[2:]610 if len(data) != extensionsLength {611 return false612 }613 for len(data) != 0 {614 if len(data) < 4 {615 return false616 }617 extension := uint16(data[0])<<8 | uint16(data[1])618 length := int(data[2])<<8 | int(data[3])619 data = data[4:]620 if len(data) < length {621 return false622 }623 switch extension {624 case extensionNextProtoNeg:625 m.nextProtoNeg = true626 d := data[:length]627 for len(d) > 0 {628 l := int(d[0])629 d = d[1:]630 if l == 0 || l > len(d) {631 return false632 }633 m.nextProtos = append(m.nextProtos, string(d[:l]))634 d = d[l:]635 }636 case extensionStatusRequest:637 if length > 0 {638 return false639 }640 m.ocspStapling = true641 case extensionSessionTicket:642 if length > 0 {643 return false644 }645 m.ticketSupported = true646 case extensionRenegotiationInfo:647 if length != 1 || data[0] != 0 {648 return false649 }650 m.secureRenegotiation = true651 case extensionALPN:652 d := data[:length]653 if len(d) < 3 {654 return false655 }656 l := int(d[0])<<8 | int(d[1])657 if l != len(d)-2 {658 return false659 }660 d = d[2:]661 l = int(d[0])662 if l != len(d)-1 {663 return false664 }665 d = d[1:]666 m.alpnProtocol = string(d)667 }668 data = data[length:]669 }670 return true671}672type certificateMsg struct {673 raw []byte674 certificates [][]byte675}676func (m *certificateMsg) equal(i interface{}) bool {677 m1, ok := i.(*certificateMsg)678 if !ok {679 return false680 }681 return bytes.Equal(m.raw, m1.raw) &&682 eqByteSlices(m.certificates, m1.certificates)683}684func (m *certificateMsg) marshal() (x []byte) {685 if m.raw != nil {686 return m.raw687 }688 var i int689 for _, slice := range m.certificates {690 i += len(slice)691 }692 length := 3 + 3*len(m.certificates) + i693 x = make([]byte, 4+length)694 x[0] = typeCertificate695 x[1] = uint8(length >> 16)696 x[2] = uint8(length >> 8)697 x[3] = uint8(length)698 certificateOctets := length - 3699 x[4] = uint8(certificateOctets >> 16)700 x[5] = uint8(certificateOctets >> 8)701 x[6] = uint8(certificateOctets)702 y := x[7:]703 for _, slice := range m.certificates {704 y[0] = uint8(len(slice) >> 16)705 y[1] = uint8(len(slice) >> 8)706 y[2] = uint8(len(slice))707 copy(y[3:], slice)708 y = y[3+len(slice):]709 }710 m.raw = x711 return712}713func (m *certificateMsg) unmarshal(data []byte) bool {714 if len(data) < 7 {715 return false716 }717 m.raw = data718 certsLen := uint32(data[4])<<16 | uint32(data[5])<<8 | uint32(data[6])719 if uint32(len(data)) != certsLen+7 {720 return false721 }722 numCerts := 0723 d := data[7:]724 for certsLen > 0 {725 if len(d) < 4 {726 return false727 }728 certLen := uint32(d[0])<<16 | uint32(d[1])<<8 | uint32(d[2])729 if uint32(len(d)) < 3+certLen {730 return false731 }732 d = d[3+certLen:]733 certsLen -= 3 + certLen734 numCerts++735 }736 m.certificates = make([][]byte, numCerts)737 d = data[7:]738 for i := 0; i < numCerts; i++ {739 certLen := uint32(d[0])<<16 | uint32(d[1])<<8 | uint32(d[2])740 m.certificates[i] = d[3 : 3+certLen]741 d = d[3+certLen:]742 }743 return true744}745type serverKeyExchangeMsg struct {746 raw []byte747 key []byte748}749func (m *serverKeyExchangeMsg) equal(i interface{}) bool {750 m1, ok := i.(*serverKeyExchangeMsg)751 if !ok {752 return false753 }754 return bytes.Equal(m.raw, m1.raw) &&755 bytes.Equal(m.key, m1.key)756}757func (m *serverKeyExchangeMsg) marshal() []byte {758 if m.raw != nil {759 return m.raw760 }761 length := len(m.key)762 x := make([]byte, length+4)763 x[0] = typeServerKeyExchange764 x[1] = uint8(length >> 16)765 x[2] = uint8(length >> 8)766 x[3] = uint8(length)767 copy(x[4:], m.key)768 m.raw = x769 return x770}771func (m *serverKeyExchangeMsg) unmarshal(data []byte) bool {772 m.raw = data773 if len(data) < 4 {774 return false775 }776 m.key = data[4:]777 return true778}779type certificateStatusMsg struct {780 raw []byte781 statusType uint8782 response []byte783}784func (m *certificateStatusMsg) equal(i interface{}) bool {785 m1, ok := i.(*certificateStatusMsg)786 if !ok {787 return false788 }789 return bytes.Equal(m.raw, m1.raw) &&790 m.statusType == m1.statusType &&791 bytes.Equal(m.response, m1.response)792}793func (m *certificateStatusMsg) marshal() []byte {794 if m.raw != nil {795 return m.raw796 }797 var x []byte798 if m.statusType == statusTypeOCSP {799 x = make([]byte, 4+4+len(m.response))800 x[0] = typeCertificateStatus801 l := len(m.response) + 4802 x[1] = byte(l >> 16)803 x[2] = byte(l >> 8)804 x[3] = byte(l)805 x[4] = statusTypeOCSP806 l -= 4807 x[5] = byte(l >> 16)808 x[6] = byte(l >> 8)809 x[7] = byte(l)810 copy(x[8:], m.response)811 } else {812 x = []byte{typeCertificateStatus, 0, 0, 1, m.statusType}813 }814 m.raw = x815 return x816}817func (m *certificateStatusMsg) unmarshal(data []byte) bool {818 m.raw = data819 if len(data) < 5 {820 return false821 }822 m.statusType = data[4]823 m.response = nil824 if m.statusType == statusTypeOCSP {825 if len(data) < 8 {826 return false827 }828 respLen := uint32(data[5])<<16 | uint32(data[6])<<8 | uint32(data[7])829 if uint32(len(data)) != 4+4+respLen {830 return false831 }832 m.response = data[8:]833 }834 return true835}836type serverHelloDoneMsg struct{}837func (m *serverHelloDoneMsg) equal(i interface{}) bool {838 _, ok := i.(*serverHelloDoneMsg)839 return ok840}841func (m *serverHelloDoneMsg) marshal() []byte {842 x := make([]byte, 4)843 x[0] = typeServerHelloDone844 return x845}846func (m *serverHelloDoneMsg) unmarshal(data []byte) bool {847 return len(data) == 4848}849type clientKeyExchangeMsg struct {850 raw []byte851 ciphertext []byte852}853func (m *clientKeyExchangeMsg) equal(i interface{}) bool {854 m1, ok := i.(*clientKeyExchangeMsg)855 if !ok {856 return false857 }858 return bytes.Equal(m.raw, m1.raw) &&859 bytes.Equal(m.ciphertext, m1.ciphertext)860}861func (m *clientKeyExchangeMsg) marshal() []byte {862 if m.raw != nil {863 return m.raw864 }865 length := len(m.ciphertext)866 x := make([]byte, length+4)867 x[0] = typeClientKeyExchange868 x[1] = uint8(length >> 16)869 x[2] = uint8(length >> 8)870 x[3] = uint8(length)871 copy(x[4:], m.ciphertext)872 m.raw = x873 return x874}875func (m *clientKeyExchangeMsg) unmarshal(data []byte) bool {876 m.raw = data877 if len(data) < 4 {878 return false879 }880 l := int(data[1])<<16 | int(data[2])<<8 | int(data[3])881 if l != len(data)-4 {882 return false883 }884 m.ciphertext = data[4:]885 return true886}887type finishedMsg struct {888 raw []byte889 verifyData []byte890}891func (m *finishedMsg) equal(i interface{}) bool {892 m1, ok := i.(*finishedMsg)893 if !ok {894 return false895 }896 return bytes.Equal(m.raw, m1.raw) &&897 bytes.Equal(m.verifyData, m1.verifyData)898}899func (m *finishedMsg) marshal() (x []byte) {900 if m.raw != nil {901 return m.raw902 }903 x = make([]byte, 4+len(m.verifyData))904 x[0] = typeFinished905 x[3] = byte(len(m.verifyData))906 copy(x[4:], m.verifyData)907 m.raw = x908 return909}910func (m *finishedMsg) unmarshal(data []byte) bool {911 m.raw = data912 if len(data) < 4 {913 return false914 }915 m.verifyData = data[4:]916 return true917}918type nextProtoMsg struct {919 raw []byte920 proto string921}922func (m *nextProtoMsg) equal(i interface{}) bool {923 m1, ok := i.(*nextProtoMsg)924 if !ok {925 return false926 }927 return bytes.Equal(m.raw, m1.raw) &&928 m.proto == m1.proto929}930func (m *nextProtoMsg) marshal() []byte {931 if m.raw != nil {932 return m.raw933 }934 l := len(m.proto)935 if l > 255 {936 l = 255937 }938 padding := 32 - (l+2)%32939 length := l + padding + 2940 x := make([]byte, length+4)941 x[0] = typeNextProtocol942 x[1] = uint8(length >> 16)943 x[2] = uint8(length >> 8)944 x[3] = uint8(length)945 y := x[4:]946 y[0] = byte(l)947 copy(y[1:], []byte(m.proto[0:l]))948 y = y[1+l:]949 y[0] = byte(padding)950 m.raw = x951 return x952}953func (m *nextProtoMsg) unmarshal(data []byte) bool {954 m.raw = data955 if len(data) < 5 {956 return false957 }958 data = data[4:]959 protoLen := int(data[0])960 data = data[1:]961 if len(data) < protoLen {962 return false963 }964 m.proto = string(data[0:protoLen])965 data = data[protoLen:]966 if len(data) < 1 {967 return false968 }969 paddingLen := int(data[0])970 data = data[1:]971 if len(data) != paddingLen {972 return false973 }974 return true975}976type certificateRequestMsg struct {977 raw []byte978 // hasSignatureAndHash indicates whether this message includes a list979 // of signature and hash functions. This change was introduced with TLS980 // 1.2.981 hasSignatureAndHash bool982 certificateTypes []byte983 signatureAndHashes []signatureAndHash984 certificateAuthorities [][]byte985}986func (m *certificateRequestMsg) equal(i interface{}) bool {987 m1, ok := i.(*certificateRequestMsg)988 if !ok {989 return false990 }991 return bytes.Equal(m.raw, m1.raw) &&992 bytes.Equal(m.certificateTypes, m1.certificateTypes) &&993 eqByteSlices(m.certificateAuthorities, m1.certificateAuthorities) &&994 eqSignatureAndHashes(m.signatureAndHashes, m1.signatureAndHashes)995}996func (m *certificateRequestMsg) marshal() (x []byte) {997 if m.raw != nil {998 return m.raw999 }1000 // See http://tools.ietf.org/html/rfc4346#section-7.4.41001 length := 1 + len(m.certificateTypes) + 21002 casLength := 01003 for _, ca := range m.certificateAuthorities {1004 casLength += 2 + len(ca)1005 }1006 length += casLength1007 if m.hasSignatureAndHash {1008 length += 2 + 2*len(m.signatureAndHashes)1009 }1010 x = make([]byte, 4+length)1011 x[0] = typeCertificateRequest1012 x[1] = uint8(length >> 16)1013 x[2] = uint8(length >> 8)1014 x[3] = uint8(length)1015 x[4] = uint8(len(m.certificateTypes))1016 copy(x[5:], m.certificateTypes)1017 y := x[5+len(m.certificateTypes):]1018 if m.hasSignatureAndHash {1019 n := len(m.signatureAndHashes) * 21020 y[0] = uint8(n >> 8)1021 y[1] = uint8(n)1022 y = y[2:]1023 for _, sigAndHash := range m.signatureAndHashes {1024 y[0] = sigAndHash.hash1025 y[1] = sigAndHash.signature1026 y = y[2:]1027 }1028 }1029 y[0] = uint8(casLength >> 8)1030 y[1] = uint8(casLength)1031 y = y[2:]1032 for _, ca := range m.certificateAuthorities {1033 y[0] = uint8(len(ca) >> 8)1034 y[1] = uint8(len(ca))1035 y = y[2:]1036 copy(y, ca)1037 y = y[len(ca):]1038 }1039 m.raw = x1040 return1041}1042func (m *certificateRequestMsg) unmarshal(data []byte) bool {1043 m.raw = data1044 if len(data) < 5 {1045 return false1046 }1047 length := uint32(data[1])<<16 | uint32(data[2])<<8 | uint32(data[3])1048 if uint32(len(data))-4 != length {1049 return false1050 }1051 numCertTypes := int(data[4])1052 data = data[5:]1053 if numCertTypes == 0 || len(data) <= numCertTypes {1054 return false1055 }1056 m.certificateTypes = make([]byte, numCertTypes)1057 if copy(m.certificateTypes, data) != numCertTypes {1058 return false1059 }1060 data = data[numCertTypes:]1061 if m.hasSignatureAndHash {1062 if len(data) < 2 {1063 return false1064 }1065 sigAndHashLen := uint16(data[0])<<8 | uint16(data[1])1066 data = data[2:]1067 if sigAndHashLen&1 != 0 {1068 return false1069 }1070 if len(data) < int(sigAndHashLen) {1071 return false1072 }1073 numSigAndHash := sigAndHashLen / 21074 m.signatureAndHashes = make([]signatureAndHash, numSigAndHash)1075 for i := range m.signatureAndHashes {1076 m.signatureAndHashes[i].hash = data[0]1077 m.signatureAndHashes[i].signature = data[1]1078 data = data[2:]1079 }1080 }1081 if len(data) < 2 {1082 return false1083 }1084 casLength := uint16(data[0])<<8 | uint16(data[1])1085 data = data[2:]1086 if len(data) < int(casLength) {1087 return false1088 }1089 cas := make([]byte, casLength)1090 copy(cas, data)1091 data = data[casLength:]1092 m.certificateAuthorities = nil1093 for len(cas) > 0 {1094 if len(cas) < 2 {1095 return false1096 }1097 caLen := uint16(cas[0])<<8 | uint16(cas[1])1098 cas = cas[2:]1099 if len(cas) < int(caLen) {1100 return false1101 }1102 m.certificateAuthorities = append(m.certificateAuthorities, cas[:caLen])1103 cas = cas[caLen:]1104 }1105 if len(data) > 0 {1106 return false1107 }1108 return true1109}1110type certificateVerifyMsg struct {1111 raw []byte1112 hasSignatureAndHash bool1113 signatureAndHash signatureAndHash1114 signature []byte1115}1116func (m *certificateVerifyMsg) equal(i interface{}) bool {1117 m1, ok := i.(*certificateVerifyMsg)1118 if !ok {1119 return false1120 }1121 return bytes.Equal(m.raw, m1.raw) &&1122 m.hasSignatureAndHash == m1.hasSignatureAndHash &&1123 m.signatureAndHash.hash == m1.signatureAndHash.hash &&1124 m.signatureAndHash.signature == m1.signatureAndHash.signature &&1125 bytes.Equal(m.signature, m1.signature)1126}1127func (m *certificateVerifyMsg) marshal() (x []byte) {1128 if m.raw != nil {1129 return m.raw1130 }1131 // See http://tools.ietf.org/html/rfc4346#section-7.4.81132 siglength := len(m.signature)1133 length := 2 + siglength1134 if m.hasSignatureAndHash {1135 length += 21136 }1137 x = make([]byte, 4+length)1138 x[0] = typeCertificateVerify1139 x[1] = uint8(length >> 16)1140 x[2] = uint8(length >> 8)1141 x[3] = uint8(length)1142 y := x[4:]1143 if m.hasSignatureAndHash {1144 y[0] = m.signatureAndHash.hash1145 y[1] = m.signatureAndHash.signature1146 y = y[2:]1147 }1148 y[0] = uint8(siglength >> 8)1149 y[1] = uint8(siglength)1150 copy(y[2:], m.signature)1151 m.raw = x1152 return1153}1154func (m *certificateVerifyMsg) unmarshal(data []byte) bool {1155 m.raw = data1156 if len(data) < 6 {1157 return false1158 }1159 length := uint32(data[1])<<16 | uint32(data[2])<<8 | uint32(data[3])1160 if uint32(len(data))-4 != length {1161 return false1162 }1163 data = data[4:]1164 if m.hasSignatureAndHash {1165 m.signatureAndHash.hash = data[0]1166 m.signatureAndHash.signature = data[1]1167 data = data[2:]1168 }1169 if len(data) < 2 {1170 return false1171 }1172 siglength := int(data[0])<<8 + int(data[1])1173 data = data[2:]1174 if len(data) != siglength {1175 return false1176 }1177 m.signature = data1178 return true1179}1180type newSessionTicketMsg struct {1181 raw []byte1182 ticket []byte1183}1184func (m *newSessionTicketMsg) equal(i interface{}) bool {1185 m1, ok := i.(*newSessionTicketMsg)1186 if !ok {1187 return false1188 }1189 return bytes.Equal(m.raw, m1.raw) &&1190 bytes.Equal(m.ticket, m1.ticket)1191}1192func (m *newSessionTicketMsg) marshal() (x []byte) {1193 if m.raw != nil {1194 return m.raw1195 }1196 // See http://tools.ietf.org/html/rfc5077#section-3.31197 ticketLen := len(m.ticket)1198 length := 2 + 4 + ticketLen1199 x = make([]byte, 4+length)1200 x[0] = typeNewSessionTicket1201 x[1] = uint8(length >> 16)1202 x[2] = uint8(length >> 8)1203 x[3] = uint8(length)1204 x[8] = uint8(ticketLen >> 8)1205 x[9] = uint8(ticketLen)1206 copy(x[10:], m.ticket)1207 m.raw = x1208 return1209}1210func (m *newSessionTicketMsg) unmarshal(data []byte) bool {1211 m.raw = data1212 if len(data) < 10 {1213 return false1214 }1215 length := uint32(data[1])<<16 | uint32(data[2])<<8 | uint32(data[3])1216 if uint32(len(data))-4 != length {1217 return false1218 }1219 ticketLen := int(data[8])<<8 + int(data[9])1220 if len(data)-10 != ticketLen {1221 return false1222 }1223 m.ticket = data[10:]1224 return true1225}1226func eqUint16s(x, y []uint16) bool {1227 if len(x) != len(y) {1228 return false1229 }1230 for i, v := range x {1231 if y[i] != v {1232 return false1233 }1234 }...
ticket.go
Source:ticket.go
...74 return false75 }76 s.vers = uint16(data[0])<<8 | uint16(data[1])77 s.cipherSuite = uint16(data[2])<<8 | uint16(data[3])78 masterSecretLen := int(data[4])<<8 | int(data[5])79 data = data[6:]80 if len(data) < masterSecretLen {81 return false82 }83 s.masterSecret = data[:masterSecretLen]84 data = data[masterSecretLen:]85 if len(data) < 2 {86 return false87 }88 numCerts := int(data[0])<<8 | int(data[1])89 data = data[2:]90 s.certificates = make([][]byte, numCerts)91 for i := range s.certificates {92 if len(data) < 4 {93 return false94 }95 certLen := int(data[0])<<24 | int(data[1])<<16 | int(data[2])<<8 | int(data[3])96 data = data[4:]97 if certLen < 0 {98 return false99 }100 if len(data) < certLen {101 return false102 }103 s.certificates[i] = data[:certLen]104 data = data[certLen:]105 }106 if len(data) > 0 {107 return false108 }109 return true110}111func (c *Conn) encryptTicket(state *sessionState) ([]byte, error) {112 serialized := state.marshal()113 encrypted := make([]byte, aes.BlockSize+len(serialized)+sha256.Size)114 iv := encrypted[:aes.BlockSize]115 macBytes := encrypted[len(encrypted)-sha256.Size:]116 if _, err := io.ReadFull(c.config.rand(), iv); err != nil {117 return nil, err118 }...
Len
Using AI Code Generation
1s := session.NewSession()2s.Len()3s := session.NewSession()4s.Len()5s := session.NewSession()6s.Len()7s := session.NewSession()8s.Len()9s := session.NewSession()10s.Len()11s := session.NewSession()12s.Len()13s := session.NewSession()14s.Len()15s := session.NewSession()16s.Len()17s := session.NewSession()18s.Len()19s := session.NewSession()20s.Len()21s := session.NewSession()22s.Len()23s := session.NewSession()24s.Len()25s := session.NewSession()26s.Len()27s := session.NewSession()28s.Len()29s := session.NewSession()30s.Len()31s := session.NewSession()32s.Len()33s := session.NewSession()34s.Len()35s := session.NewSession()36s.Len()37s := session.NewSession()38s.Len()
Len
Using AI Code Generation
1import (2type Session struct {3}4func (s *Session) Len() int {5}6func main() {7 s := Session{8 }9 fmt.Println(s.Len())10}11import (12type Session struct {13}14func (s *Session) Len() int {15}16func main() {17 s := Session{18 }19 fmt.Println(s.Len())20}21import (22type Session struct {23}24func (s *Session) Len() int {25}26func main() {27 s := Session{28 }29 fmt.Println(s.Len())30}31import (32type Session struct {33}34func (s *Session) Len() int {35}36func main() {37 s := Session{38 }39 fmt.Println(s.Len())40}41import (42type Session struct {43}44func (s *Session) Len() int {45}46func main() {47 s := Session{48 }49 fmt.Println(s.Len())50}51import (52type Session struct {53}54func (s *Session) Len() int {55}56func main() {57 s := Session{58 }59 fmt.Println(s.Len())60}61import (62type Session struct {63}
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