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138 lines
3.2 KiB
Go
138 lines
3.2 KiB
Go
package api
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import (
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"encoding/json"
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"net/http"
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"sync"
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"time"
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"github.com/42wim/matterbridge/bridge"
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"github.com/42wim/matterbridge/bridge/config"
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"github.com/labstack/echo/v4"
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"github.com/labstack/echo/v4/middleware"
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ring "github.com/zfjagann/golang-ring"
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)
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type API struct {
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Messages ring.Ring
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sync.RWMutex
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*bridge.Config
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}
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type Message struct {
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Text string `json:"text"`
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Username string `json:"username"`
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UserID string `json:"userid"`
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Avatar string `json:"avatar"`
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Gateway string `json:"gateway"`
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}
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func New(cfg *bridge.Config) bridge.Bridger {
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b := &API{Config: cfg}
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e := echo.New()
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e.HideBanner = true
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e.HidePort = true
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b.Messages = ring.Ring{}
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if b.GetInt("Buffer") != 0 {
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b.Messages.SetCapacity(b.GetInt("Buffer"))
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}
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if b.GetString("Token") != "" {
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e.Use(middleware.KeyAuth(func(key string, c echo.Context) (bool, error) {
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return key == b.GetString("Token"), nil
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}))
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}
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// Set RemoteNickFormat to a sane default
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if !b.IsKeySet("RemoteNickFormat") {
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b.Log.Debugln("RemoteNickFormat is unset, defaulting to \"{NICK}\"")
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b.Config.Config.Viper().Set(b.GetConfigKey("RemoteNickFormat"), "{NICK}")
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}
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e.GET("/api/health", b.handleHealthcheck)
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e.GET("/api/messages", b.handleMessages)
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e.GET("/api/stream", b.handleStream)
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e.POST("/api/message", b.handlePostMessage)
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go func() {
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if b.GetString("BindAddress") == "" {
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b.Log.Fatalf("No BindAddress configured.")
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}
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b.Log.Infof("Listening on %s", b.GetString("BindAddress"))
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b.Log.Fatal(e.Start(b.GetString("BindAddress")))
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}()
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return b
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}
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func (b *API) Connect() error {
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return nil
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}
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func (b *API) Disconnect() error {
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return nil
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}
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func (b *API) JoinChannel(channel config.ChannelInfo) error {
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return nil
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}
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func (b *API) Send(msg config.Message) (string, error) {
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b.Lock()
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defer b.Unlock()
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// ignore delete messages
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if msg.Event == config.EventMsgDelete {
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return "", nil
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}
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b.Messages.Enqueue(&msg)
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return "", nil
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}
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func (b *API) handleHealthcheck(c echo.Context) error {
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return c.String(http.StatusOK, "OK")
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}
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func (b *API) handlePostMessage(c echo.Context) error {
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message := config.Message{}
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if err := c.Bind(&message); err != nil {
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return err
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}
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// these values are fixed
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message.Channel = "api"
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message.Protocol = "api"
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message.Account = b.Account
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message.ID = ""
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message.Timestamp = time.Now()
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b.Log.Debugf("Sending message from %s on %s to gateway", message.Username, "api")
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b.Remote <- message
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return c.JSON(http.StatusOK, message)
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}
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func (b *API) handleMessages(c echo.Context) error {
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b.Lock()
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defer b.Unlock()
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c.JSONPretty(http.StatusOK, b.Messages.Values(), " ")
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b.Messages = ring.Ring{}
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return nil
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}
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func (b *API) handleStream(c echo.Context) error {
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c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
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c.Response().WriteHeader(http.StatusOK)
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greet := config.Message{
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Event: config.EventAPIConnected,
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Timestamp: time.Now(),
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}
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if err := json.NewEncoder(c.Response()).Encode(greet); err != nil {
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return err
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}
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c.Response().Flush()
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for {
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msg := b.Messages.Dequeue()
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if msg != nil {
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if err := json.NewEncoder(c.Response()).Encode(msg); err != nil {
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return err
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}
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c.Response().Flush()
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}
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time.Sleep(200 * time.Millisecond)
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}
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}
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