| 1 | package gateway |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "sync" |
| 6 | "time" |
| 7 | |
| 8 | "github.com/matterbridge-org/matterbridge/bridge" |
| 9 | "github.com/matterbridge-org/matterbridge/bridge/config" |
| 10 | "github.com/matterbridge-org/matterbridge/gateway/samechannel" |
| 11 | "github.com/sirupsen/logrus" |
| 12 | ) |
| 13 | |
| 14 | type Router struct { |
| 15 | config.Config |
| 16 | sync.RWMutex |
| 17 | |
| 18 | BridgeMap map[string]bridge.Factory |
| 19 | Gateways map[string]*Gateway |
| 20 | Message chan config.Message |
| 21 | MattermostPlugin chan config.Message |
| 22 | |
| 23 | logger *logrus.Entry |
| 24 | } |
| 25 | |
| 26 | // NewRouter initializes a new Matterbridge router for the specified configuration and |
| 27 | // sets up all required gateways. |
| 28 | func NewRouter(rootLogger *logrus.Logger, cfg config.Config, bridgeMap map[string]bridge.Factory) (*Router, error) { |
| 29 | logger := rootLogger.WithFields(logrus.Fields{"prefix": "router"}) |
| 30 | |
| 31 | r := &Router{ |
| 32 | Config: cfg, |
| 33 | BridgeMap: bridgeMap, |
| 34 | Message: make(chan config.Message), |
| 35 | MattermostPlugin: make(chan config.Message), |
| 36 | Gateways: make(map[string]*Gateway), |
| 37 | logger: logger, |
| 38 | } |
| 39 | sgw := samechannel.New(cfg) |
| 40 | gwconfigs := append(sgw.GetConfig(), cfg.BridgeValues().Gateway...) |
| 41 | |
| 42 | for idx := range gwconfigs { |
| 43 | entry := &gwconfigs[idx] |
| 44 | if !entry.Enable { |
| 45 | continue |
| 46 | } |
| 47 | if entry.Name == "" { |
| 48 | return nil, fmt.Errorf("%s", "Gateway without name found") |
| 49 | } |
| 50 | if _, ok := r.Gateways[entry.Name]; ok { |
| 51 | return nil, fmt.Errorf("Gateway with name %s already exists", entry.Name) |
| 52 | } |
| 53 | r.Gateways[entry.Name] = New(rootLogger, entry, r) |
| 54 | } |
| 55 | return r, nil |
| 56 | } |
| 57 | |
| 58 | // Start will connect all gateways belonging to this router and subsequently route messages |
| 59 | // between them. |
| 60 | func (r *Router) Start() error { |
| 61 | // Deprecating MediaServerUpload. Remove in future v2.1 release |
| 62 | deprecatedValue, _ := r.GetString("MediaServerUpload") |
| 63 | if deprecatedValue != "" { |
| 64 | r.logger.Fatal("MediaServerUpload config option has been deprecated. You should either remove this option from your configuration, or help us document it.") |
| 65 | } |
| 66 | |
| 67 | m := make(map[string]*bridge.Bridge) |
| 68 | if len(r.Gateways) == 0 { |
| 69 | return fmt.Errorf("no [[gateway]] configured. See https://github.com/42wim/matterbridge/wiki/How-to-create-your-config for more info") |
| 70 | } |
| 71 | for _, gw := range r.Gateways { |
| 72 | r.logger.Infof("Parsing gateway %s", gw.Name) |
| 73 | if len(gw.Bridges) == 0 { |
| 74 | return fmt.Errorf("no bridges configured for gateway %s. See https://github.com/42wim/matterbridge/wiki/How-to-create-your-config for more info", gw.Name) |
| 75 | } |
| 76 | for _, br := range gw.Bridges { |
| 77 | m[br.Account] = br |
| 78 | } |
| 79 | } |
| 80 | for _, br := range m { |
| 81 | r.logger.Infof("Starting bridge: %s ", br.Account) |
| 82 | err := br.Connect() |
| 83 | if err != nil { |
| 84 | e := fmt.Errorf("Bridge %s failed to start: %v", br.Account, err) |
| 85 | if r.disableBridge(br, e) { |
| 86 | continue |
| 87 | } |
| 88 | return e |
| 89 | } |
| 90 | err = br.JoinChannels() |
| 91 | if err != nil { |
| 92 | e := fmt.Errorf("Bridge %s failed to join channel: %v", br.Account, err) |
| 93 | if r.disableBridge(br, e) { |
| 94 | continue |
| 95 | } |
| 96 | return e |
| 97 | } |
| 98 | } |
| 99 | // remove unused bridges |
| 100 | for _, gw := range r.Gateways { |
| 101 | for i, br := range gw.Bridges { |
| 102 | if br.Bridger == nil { |
| 103 | r.logger.Errorf("removing failed bridge %s", i) |
| 104 | delete(gw.Bridges, i) |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | go r.handleReceive() |
| 109 | //go r.updateChannelMembers() |
| 110 | return nil |
| 111 | } |
| 112 | |
| 113 | // disableBridge returns true and empties a bridge if we have IgnoreFailureOnStart configured |
| 114 | // otherwise returns false |
| 115 | func (r *Router) disableBridge(br *bridge.Bridge, err error) bool { |
| 116 | if r.BridgeValues().General.IgnoreFailureOnStart { |
| 117 | r.logger.Error(err) |
| 118 | // setting this bridge empty |
| 119 | *br = bridge.Bridge{ |
| 120 | Log: br.Log, |
| 121 | } |
| 122 | return true |
| 123 | } |
| 124 | return false |
| 125 | } |
| 126 | |
| 127 | func (r *Router) getBridge(account string) *bridge.Bridge { |
| 128 | for _, gw := range r.Gateways { |
| 129 | if br, ok := gw.Bridges[account]; ok { |
| 130 | return br |
| 131 | } |
| 132 | } |
| 133 | return nil |
| 134 | } |
| 135 | |
| 136 | func (r *Router) handleReceive() { |
| 137 | for msg := range r.Message { |
| 138 | msg := msg // scopelint |
| 139 | r.handleEventGetChannelMembers(&msg) |
| 140 | r.handleEventFailure(&msg) |
| 141 | r.handleEventRejoinChannels(&msg) |
| 142 | |
| 143 | // Set message protocol based on the account it came from |
| 144 | msg.Protocol = r.getBridge(msg.Account).Protocol |
| 145 | |
| 146 | filesHandled := false |
| 147 | for _, gw := range r.Gateways { |
| 148 | // record all the message ID's of the different bridges |
| 149 | var msgIDs []*BrMsgID |
| 150 | if gw.ignoreMessage(&msg) { |
| 151 | continue |
| 152 | } |
| 153 | msg.Timestamp = time.Now() |
| 154 | gw.modifyMessage(&msg) |
| 155 | if !filesHandled { |
| 156 | gw.handleFiles(&msg) |
| 157 | filesHandled = true |
| 158 | } |
| 159 | for _, br := range gw.Bridges { |
| 160 | msgIDs = append(msgIDs, gw.handleMessage(&msg, br)...) |
| 161 | } |
| 162 | |
| 163 | if msg.ID != "" { |
| 164 | _, exists := gw.Messages.Get(msg.Protocol + " " + msg.ID) |
| 165 | |
| 166 | // Only add the message ID if it doesn't already exist |
| 167 | // |
| 168 | // For some bridges we always add/update the message ID. |
| 169 | // This is necessary as msgIDs will change if a bridge returns |
| 170 | // a different ID in response to edits. |
| 171 | if !exists { |
| 172 | gw.Messages.Add(msg.Protocol+" "+msg.ID, msgIDs) |
| 173 | } |
| 174 | } |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | // updateChannelMembers sends every minute an GetChannelMembers event to all bridges. |
| 180 | func (r *Router) updateChannelMembers() { |
| 181 | // TODO sleep a minute because slack can take a while |
| 182 | // fix this by having actually connectionDone events send to the router |
| 183 | time.Sleep(time.Minute) |
| 184 | for { |
| 185 | for _, gw := range r.Gateways { |
| 186 | for _, br := range gw.Bridges { |
| 187 | // only for slack now |
| 188 | if br.Protocol != "slack" { |
| 189 | continue |
| 190 | } |
| 191 | r.logger.Debugf("sending %s to %s", config.EventGetChannelMembers, br.Account) |
| 192 | if _, err := br.Send(config.Message{Event: config.EventGetChannelMembers}); err != nil { |
| 193 | r.logger.Errorf("updateChannelMembers: %s", err) |
| 194 | } |
| 195 | } |
| 196 | } |
| 197 | time.Sleep(time.Minute) |
| 198 | } |
| 199 | } |
| 200 | |
