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authorWim <wim@42.be>2019-03-02 13:04:28 +0100
committerGitHub <noreply@github.com>2019-03-02 13:04:28 +0100
commitdf3fdc26a01a20c3568b824f4f15f9b56a2f3db3 (patch)
tree053e3caf197063f94af386e60c67e4bef69a7863 /vendor/github.com/Rhymen/go-whatsapp/session.go
parentaf00c34aaccb3521b8dbf0bd8876a5b38d5d42f4 (diff)
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Use whatsapp forks (#750)
Diffstat (limited to 'vendor/github.com/Rhymen/go-whatsapp/session.go')
-rw-r--r--vendor/github.com/Rhymen/go-whatsapp/session.go389
1 files changed, 0 insertions, 389 deletions
diff --git a/vendor/github.com/Rhymen/go-whatsapp/session.go b/vendor/github.com/Rhymen/go-whatsapp/session.go
deleted file mode 100644
index 8b464310..00000000
--- a/vendor/github.com/Rhymen/go-whatsapp/session.go
+++ /dev/null
@@ -1,389 +0,0 @@
-package whatsapp
-
-import (
- "crypto/hmac"
- "crypto/rand"
- "crypto/sha256"
- "encoding/base64"
- "encoding/json"
- "fmt"
- "time"
-
- "github.com/Rhymen/go-whatsapp/crypto/cbc"
- "github.com/Rhymen/go-whatsapp/crypto/curve25519"
- "github.com/Rhymen/go-whatsapp/crypto/hkdf"
-)
-
-/*
-Session contains session individual information. To be able to resume the connection without scanning the qr code
-every time you should save the Session returned by Login and use RestoreSession the next time you want to login.
-Every successful created connection returns a new Session. The Session(ClientToken, ServerToken) is altered after
-every re-login and should be saved every time.
-*/
-type Session struct {
- ClientId string
- ClientToken string
- ServerToken string
- EncKey []byte
- MacKey []byte
- Wid string
-}
-
-type Info struct {
- Battery int
- Platform string
- Connected bool
- Pushname string
- Wid string
- Lc string
- Phone *PhoneInfo
- Plugged bool
- Tos int
- Lg string
- Is24h bool
-}
-
-type PhoneInfo struct {
- Mcc string
- Mnc string
- OsVersion string
- DeviceManufacturer string
- DeviceModel string
- OsBuildNumber string
- WaVersion string
-}
-
-func newInfoFromReq(info map[string]interface{}) *Info {
- phoneInfo := info["phone"].(map[string]interface{})
-
- ret := &Info{
- Battery: int(info["battery"].(float64)),
- Platform: info["platform"].(string),
- Connected: info["connected"].(bool),
- Pushname: info["pushname"].(string),
- Wid: info["wid"].(string),
- Lc: info["lc"].(string),
- Phone: &PhoneInfo{
- phoneInfo["mcc"].(string),
- phoneInfo["mnc"].(string),
- phoneInfo["os_version"].(string),
- phoneInfo["device_manufacturer"].(string),
- phoneInfo["device_model"].(string),
- phoneInfo["os_build_number"].(string),
- phoneInfo["wa_version"].(string),
- },
- Plugged: info["plugged"].(bool),
- Lg: info["lg"].(string),
- Tos: int(info["tos"].(float64)),
- }
-
- if is24h, ok := info["is24h"]; ok {
- ret.Is24h = is24h.(bool)
- }
-
- return ret
-}
-
-/*
-SetClientName sets the long and short client names that are sent to WhatsApp when logging in and displayed in the
-WhatsApp Web device list. As the values are only sent when logging in, changing them after logging in is not possible.
-*/
-func (wac *Conn) SetClientName(long, short string) error {
- if wac.session != nil && (wac.session.EncKey != nil || wac.session.MacKey != nil) {
- return fmt.Errorf("cannot change client name after logging in")
- }
- wac.longClientName, wac.shortClientName = long, short
- return nil
-}
-
-/*
-Login is the function that creates a new whatsapp session and logs you in. If you do not want to scan the qr code
-every time, you should save the returned session and use RestoreSession the next time. Login takes a writable channel
-as an parameter. This channel is used to push the data represented by the qr code back to the user. The received data
-should be displayed as an qr code in a way you prefer. To print a qr code to console you can use:
-github.com/Baozisoftware/qrcode-terminal-go Example login procedure:
- wac, err := whatsapp.NewConn(5 * time.Second)
- if err != nil {
- panic(err)
- }
-
- qr := make(chan string)
- go func() {
- terminal := qrcodeTerminal.New()
- terminal.Get(<-qr).Print()
- }()
-
- session, err := wac.Login(qr)
- if err != nil {
- fmt.Fprintf(os.Stderr, "error during login: %v\n", err)
- }
- fmt.Printf("login successful, session: %v\n", session)
-*/
-func (wac *Conn) Login(qrChan chan<- string) (Session, error) {
- session := Session{}
-
- if wac.session != nil && (wac.session.EncKey != nil || wac.session.MacKey != nil) {
- return session, fmt.Errorf("already logged in")
- }
-
- clientId := make([]byte, 16)
- _, err := rand.Read(clientId)
- if err != nil {
- return session, fmt.Errorf("error creating random ClientId: %v", err)
- }
-
- session.ClientId = base64.StdEncoding.EncodeToString(clientId)
- //oldVersion=8691
- login := []interface{}{"admin", "init", []int{0, 3, 225}, []string{wac.longClientName, wac.shortClientName}, session.ClientId, true}
- loginChan, err := wac.write(login)
- if err != nil {
- return session, fmt.Errorf("error writing login: %v\n", err)
- }
-
- var r string
- select {
- case r = <-loginChan:
- case <-time.After(wac.msgTimeout):
- return session, fmt.Errorf("login connection timed out")
- }
-
- var resp map[string]interface{}
- if err = json.Unmarshal([]byte(r), &resp); err != nil {
- return session, fmt.Errorf("error decoding login resp: %v\n", err)
- }
-
- ref := resp["ref"].(string)
-
- priv, pub, err := curve25519.GenerateKey()
- if err != nil {
- return session, fmt.Errorf("error generating keys: %v\n", err)
- }
-
- //listener for Login response
- messageTag := "s1"
- wac.listener[messageTag] = make(chan string, 1)
-
- qrChan <- fmt.Sprintf("%v,%v,%v", ref, base64.StdEncoding.EncodeToString(pub[:]), session.ClientId)
-
- var resp2 []interface{}
- select {
- case r1 := <-wac.listener[messageTag]:
- if err := json.Unmarshal([]byte(r1), &resp2); err != nil {
- return session, fmt.Errorf("error decoding qr code resp: %v", err)
- }
- case <-time.After(time.Duration(resp["ttl"].(float64)) * time.Millisecond):
- return session, fmt.Errorf("qr code scan timed out")
- }
-
- info := resp2[1].(map[string]interface{})
-
- wac.Info = newInfoFromReq(info)
-
- session.ClientToken = info["clientToken"].(string)
- session.ServerToken = info["serverToken"].(string)
- session.Wid = info["wid"].(string)
- s := info["secret"].(string)
- decodedSecret, err := base64.StdEncoding.DecodeString(s)
- if err != nil {
- return session, fmt.Errorf("error decoding secret: %v", err)
- }
-
- var pubKey [32]byte
- copy(pubKey[:], decodedSecret[:32])
-
- sharedSecret := curve25519.GenerateSharedSecret(*priv, pubKey)
-
- hash := sha256.New
-
- nullKey := make([]byte, 32)
- h := hmac.New(hash, nullKey)
- h.Write(sharedSecret)
-
- sharedSecretExtended, err := hkdf.Expand(h.Sum(nil), 80, "")
- if err != nil {
- return session, fmt.Errorf("hkdf error: %v", err)
- }
-
- //login validation
- checkSecret := make([]byte, 112)
- copy(checkSecret[:32], decodedSecret[:32])
- copy(checkSecret[32:], decodedSecret[64:])
- h2 := hmac.New(hash, sharedSecretExtended[32:64])
- h2.Write(checkSecret)
- if !hmac.Equal(h2.Sum(nil), decodedSecret[32:64]) {
- return session, fmt.Errorf("abort login")
- }
-
- keysEncrypted := make([]byte, 96)
- copy(keysEncrypted[:16], sharedSecretExtended[64:])
- copy(keysEncrypted[16:], decodedSecret[64:])
-
- keyDecrypted, err := cbc.Decrypt(sharedSecretExtended[:32], nil, keysEncrypted)
- if err != nil {
- return session, fmt.Errorf("error decryptAes: %v", err)
- }
-
- session.EncKey = keyDecrypted[:32]
- session.MacKey = keyDecrypted[32:64]
- wac.session = &session
-
- return session, nil
-}
-
-/*
-RestoreSession is the function that restores a given session. It will try to reestablish the connection to the
-WhatsAppWeb servers with the provided session. If it succeeds it will return a new session. This new session has to be
-saved because the Client and Server-Token will change after every login. Logging in with old tokens is possible, but not
-suggested. If so, a challenge has to be resolved which is just another possible point of failure.
-*/
-func (wac *Conn) RestoreSession(session Session) (Session, error) {
- if wac.session != nil && (wac.session.EncKey != nil || wac.session.MacKey != nil) {
- return Session{}, fmt.Errorf("already logged in")
- }
-
- wac.session = &session
-
- //listener for Conn or challenge; s1 is not allowed to drop
- wac.listener["s1"] = make(chan string, 1)
-
- //admin init
- init := []interface{}{"admin", "init", []int{0, 3, 225}, []string{wac.longClientName, wac.shortClientName}, session.ClientId, true}
- initChan, err := wac.write(init)
- if err != nil {
- wac.session = nil
- return Session{}, fmt.Errorf("error writing admin init: %v\n", err)
- }
-
- //admin login with takeover
- login := []interface{}{"admin", "login", session.ClientToken, session.ServerToken, session.ClientId, "takeover"}
- loginChan, err := wac.write(login)
- if err != nil {
- wac.session = nil
- return Session{}, fmt.Errorf("error writing admin login: %v\n", err)
- }
-
- select {
- case r := <-initChan:
- var resp map[string]interface{}
- if err = json.Unmarshal([]byte(r), &resp); err != nil {
- wac.session = nil
- return Session{}, fmt.Errorf("error decoding login connResp: %v\n", err)
- }
-
- if int(resp["status"].(float64)) != 200 {
- wac.session = nil
- return Session{}, fmt.Errorf("init responded with %d", resp["status"])
- }
- case <-time.After(wac.msgTimeout):
- wac.session = nil
- return Session{}, fmt.Errorf("restore session init timed out")
- }
-
- //wait for s1
- var connResp []interface{}
- select {
- case r1 := <-wac.listener["s1"]:
- if err := json.Unmarshal([]byte(r1), &connResp); err != nil {
- wac.session = nil
- return Session{}, fmt.Errorf("error decoding s1 message: %v\n", err)
- }
- case <-time.After(wac.msgTimeout):
- wac.session = nil
- return Session{}, fmt.Errorf("restore session connection timed out")
- }
-
- //check if challenge is present
- if len(connResp) == 2 && connResp[0] == "Cmd" && connResp[1].(map[string]interface{})["type"] == "challenge" {
- wac.listener["s2"] = make(chan string, 1)
-
- if err := wac.resolveChallenge(connResp[1].(map[string]interface{})["challenge"].(string)); err != nil {
- wac.session = nil
- return Session{}, fmt.Errorf("error resolving challenge: %v\n", err)
- }
-
- select {
- case r := <-wac.listener["s2"]:
- if err := json.Unmarshal([]byte(r), &connResp); err != nil {
- wac.session = nil
- return Session{}, fmt.Errorf("error decoding s2 message: %v\n", err)
- }
- case <-time.After(wac.msgTimeout):
- wac.session = nil
- return Session{}, fmt.Errorf("restore session challenge timed out")
- }
- }
-
- //check for login 200 --> login success
- select {
- case r := <-loginChan:
- var resp map[string]interface{}
- if err = json.Unmarshal([]byte(r), &resp); err != nil {
- wac.session = nil
- return Session{}, fmt.Errorf("error decoding login connResp: %v\n", err)
- }
-
- if int(resp["status"].(float64)) != 200 {
- wac.session = nil
- return Session{}, fmt.Errorf("admin login responded with %d", resp["status"])
- }
- case <-time.After(wac.msgTimeout):
- wac.session = nil
- return Session{}, fmt.Errorf("restore session login timed out")
- }
-
- info := connResp[1].(map[string]interface{})
-
- wac.Info = newInfoFromReq(info)
-
- //set new tokens
- session.ClientToken = info["clientToken"].(string)
- session.ServerToken = info["serverToken"].(string)
- session.Wid = info["wid"].(string)
-
- return *wac.session, nil
-}
-
-func (wac *Conn) resolveChallenge(challenge string) error {
- decoded, err := base64.StdEncoding.DecodeString(challenge)
- if err != nil {
- return err
- }
-
- h2 := hmac.New(sha256.New, wac.session.MacKey)
- h2.Write([]byte(decoded))
-
- ch := []interface{}{"admin", "challenge", base64.StdEncoding.EncodeToString(h2.Sum(nil)), wac.session.ServerToken, wac.session.ClientId}
- challengeChan, err := wac.write(ch)
- if err != nil {
- return fmt.Errorf("error writing challenge: %v\n", err)
- }
-
- select {
- case r := <-challengeChan:
- var resp map[string]interface{}
- if err := json.Unmarshal([]byte(r), &resp); err != nil {
- return fmt.Errorf("error decoding login resp: %v\n", err)
- }
- if int(resp["status"].(float64)) != 200 {
- return fmt.Errorf("challenge responded with %d\n", resp["status"])
- }
- case <-time.After(wac.msgTimeout):
- return fmt.Errorf("connection timed out")
- }
-
- return nil
-}
-
-/*
-Logout is the function to logout from a WhatsApp session. Logging out means invalidating the current session.
-The session can not be resumed and will disappear on your phone in the WhatsAppWeb client list.
-*/
-func (wac *Conn) Logout() error {
- login := []interface{}{"admin", "Conn", "disconnect"}
- _, err := wac.write(login)
- if err != nil {
- return fmt.Errorf("error writing logout: %v\n", err)
- }
-
- return nil
-}