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matterbridge/matterclient/helpers.go

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package matterclient
import (
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"crypto/md5" //nolint:gosec
"crypto/tls"
"errors"
"fmt"
"net/http"
"net/http/cookiejar"
"net/url"
"strings"
"time"
"github.com/gorilla/websocket"
"github.com/jpillora/backoff"
"github.com/mattermost/mattermost-server/model"
)
func (m *MMClient) doLogin(firstConnection bool, b *backoff.Backoff) error {
var resp *model.Response
var appErr *model.AppError
var logmsg = "trying login"
var err error
for {
m.logger.Debugf("%s %s %s %s", logmsg, m.Credentials.Team, m.Credentials.Login, m.Credentials.Server)
if m.Credentials.Token != "" {
resp, err = m.doLoginToken()
if err != nil {
return err
}
} else {
m.User, resp = m.Client.Login(m.Credentials.Login, m.Credentials.Pass)
}
appErr = resp.Error
if appErr != nil {
d := b.Duration()
m.logger.Debug(appErr.DetailedError)
if firstConnection {
if appErr.Message == "" {
return errors.New(appErr.DetailedError)
}
return errors.New(appErr.Message)
}
m.logger.Debugf("LOGIN: %s, reconnecting in %s", appErr, d)
time.Sleep(d)
logmsg = "retrying login"
continue
}
break
}
// reset timer
b.Reset()
return nil
}
func (m *MMClient) doLoginToken() (*model.Response, error) {
var resp *model.Response
var logmsg = "trying login"
m.Client.AuthType = model.HEADER_BEARER
m.Client.AuthToken = m.Credentials.Token
if m.Credentials.CookieToken {
m.logger.Debugf(logmsg + " with cookie (MMAUTH) token")
m.Client.HttpClient.Jar = m.createCookieJar(m.Credentials.Token)
} else {
m.logger.Debugf(logmsg + " with personal token")
}
m.User, resp = m.Client.GetMe("")
if resp.Error != nil {
return resp, resp.Error
}
if m.User == nil {
m.logger.Errorf("LOGIN TOKEN: %s is invalid", m.Credentials.Pass)
return resp, errors.New("invalid token")
}
return resp, nil
}
func (m *MMClient) handleLoginToken() error {
switch {
case strings.Contains(m.Credentials.Pass, model.SESSION_COOKIE_TOKEN):
token := strings.Split(m.Credentials.Pass, model.SESSION_COOKIE_TOKEN+"=")
if len(token) != 2 {
return errors.New("incorrect MMAUTHTOKEN. valid input is MMAUTHTOKEN=yourtoken")
}
m.Credentials.Token = token[1]
m.Credentials.CookieToken = true
case strings.Contains(m.Credentials.Pass, "token="):
token := strings.Split(m.Credentials.Pass, "token=")
if len(token) != 2 {
return errors.New("incorrect personal token. valid input is token=yourtoken")
}
m.Credentials.Token = token[1]
}
return nil
}
func (m *MMClient) initClient(firstConnection bool, b *backoff.Backoff) error {
uriScheme := "https://"
if m.NoTLS {
uriScheme = "http://"
}
// login to mattermost
m.Client = model.NewAPIv4Client(uriScheme + m.Credentials.Server)
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m.Client.HttpClient.Transport = &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}, //nolint:gosec
Proxy: http.ProxyFromEnvironment,
}
m.Client.HttpClient.Timeout = time.Second * 10
// handle MMAUTHTOKEN and personal token
if err := m.handleLoginToken(); err != nil {
return err
}
// check if server alive, retry until
if err := m.serverAlive(firstConnection, b); err != nil {
return err
}
return nil
}
// initialize user and teams
func (m *MMClient) initUser() error {
m.Lock()
defer m.Unlock()
// we only load all team data on initial login.
// all other updates are for channels from our (primary) team only.
//m.logger.Debug("initUser(): loading all team data")
teams, resp := m.Client.GetTeamsForUser(m.User.Id, "")
if resp.Error != nil {
return resp.Error
}
for _, team := range teams {
mmusers, resp := m.Client.GetUsersInTeam(team.Id, 0, 50000, "")
if resp.Error != nil {
return errors.New(resp.Error.DetailedError)
}
usermap := make(map[string]*model.User)
for _, user := range mmusers {
usermap[user.Id] = user
}
t := &Team{Team: team, Users: usermap, Id: team.Id}
mmchannels, resp := m.Client.GetChannelsForTeamForUser(team.Id, m.User.Id, "")
if resp.Error != nil {
return resp.Error
}
t.Channels = mmchannels
mmchannels, resp = m.Client.GetPublicChannelsForTeam(team.Id, 0, 5000, "")
if resp.Error != nil {
return resp.Error
}
t.MoreChannels = mmchannels
m.OtherTeams = append(m.OtherTeams, t)
if team.Name == m.Credentials.Team {
m.Team = t
m.logger.Debugf("initUser(): found our team %s (id: %s)", team.Name, team.Id)
}
// add all users
for k, v := range t.Users {
m.Users[k] = v
}
}
return nil
}
func (m *MMClient) serverAlive(firstConnection bool, b *backoff.Backoff) error {
defer b.Reset()
for {
d := b.Duration()
// bogus call to get the serverversion
_, resp := m.Client.Logout()
if resp.Error != nil {
return fmt.Errorf("%#v", resp.Error.Error())
}
if firstConnection && !supportedVersion(resp.ServerVersion) {
return fmt.Errorf("unsupported mattermost version: %s", resp.ServerVersion)
}
m.ServerVersion = resp.ServerVersion
if m.ServerVersion == "" {
m.logger.Debugf("Server not up yet, reconnecting in %s", d)
time.Sleep(d)
} else {
m.logger.Infof("Found version %s", m.ServerVersion)
return nil
}
}
}
func (m *MMClient) wsConnect() {
b := &backoff.Backoff{
Min: time.Second,
Max: 5 * time.Minute,
Jitter: true,
}
m.WsConnected = false
wsScheme := "wss://"
if m.NoTLS {
wsScheme = "ws://"
}
// setup websocket connection
wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX_V4 + "/websocket"
header := http.Header{}
header.Set(model.HEADER_AUTH, "BEARER "+m.Client.AuthToken)
m.logger.Debugf("WsClient: making connection: %s", wsurl)
for {
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wsDialer := &websocket.Dialer{
TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}, //nolint:gosec
Proxy: http.ProxyFromEnvironment,
}
var err error
m.WsClient, _, err = wsDialer.Dial(wsurl, header)
if err != nil {
d := b.Duration()
m.logger.Debugf("WSS: %s, reconnecting in %s", err, d)
time.Sleep(d)
continue
}
break
}
m.logger.Debug("WsClient: connected")
m.WsSequence = 1
m.WsPingChan = make(chan *model.WebSocketResponse)
// only start to parse WS messages when login is completely done
m.WsConnected = true
}
func (m *MMClient) createCookieJar(token string) *cookiejar.Jar {
var cookies []*http.Cookie
jar, _ := cookiejar.New(nil)
firstCookie := &http.Cookie{
Name: "MMAUTHTOKEN",
Value: token,
Path: "/",
Domain: m.Credentials.Server,
}
cookies = append(cookies, firstCookie)
cookieURL, _ := url.Parse("https://" + m.Credentials.Server)
jar.SetCookies(cookieURL, cookies)
return jar
}
func (m *MMClient) checkAlive() error {
// check if session still is valid
_, resp := m.Client.GetMe("")
if resp.Error != nil {
return resp.Error
}
m.logger.Debug("WS PING")
return m.sendWSRequest("ping", nil)
}
func (m *MMClient) sendWSRequest(action string, data map[string]interface{}) error {
req := &model.WebSocketRequest{}
req.Seq = m.WsSequence
req.Action = action
req.Data = data
m.WsSequence++
m.logger.Debugf("sendWsRequest %#v", req)
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return m.WsClient.WriteJSON(req)
}
func supportedVersion(version string) bool {
if strings.HasPrefix(version, "3.8.0") ||
strings.HasPrefix(version, "3.9.0") ||
strings.HasPrefix(version, "3.10.0") ||
strings.HasPrefix(version, "4.") ||
strings.HasPrefix(version, "5.") {
return true
}
return false
}
func digestString(s string) string {
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return fmt.Sprintf("%x", md5.Sum([]byte(s))) //nolint:gosec
}