131 lines
2.8 KiB
Go
131 lines
2.8 KiB
Go
package api
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import (
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"encoding/json"
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"github.com/42wim/matterbridge/bridge/config"
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log "github.com/Sirupsen/logrus"
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"github.com/labstack/echo"
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"github.com/labstack/echo/middleware"
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"github.com/zfjagann/golang-ring"
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"net/http"
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"sync"
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"time"
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)
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type Api struct {
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Config *config.Protocol
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Remote chan config.Message
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Account string
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Messages ring.Ring
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sync.RWMutex
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}
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type ApiMessage 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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var flog *log.Entry
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var protocol = "api"
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func init() {
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flog = log.WithFields(log.Fields{"module": protocol})
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}
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func New(cfg config.Protocol, account string, c chan config.Message) *Api {
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b := &Api{}
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e := echo.New()
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b.Messages = ring.Ring{}
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b.Messages.SetCapacity(cfg.Buffer)
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b.Config = &cfg
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b.Account = account
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b.Remote = c
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if b.Config.Token != "" {
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e.Use(middleware.KeyAuth(func(key string, c echo.Context) (bool, error) {
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return key == b.Config.Token, nil
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}))
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}
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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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flog.Fatal(e.Start(cfg.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.EVENT_MSG_DELETE {
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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) handlePostMessage(c echo.Context) error {
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message := &ApiMessage{}
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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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flog.Debugf("Sending message from %s on %s to gateway", message.Username, "api")
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b.Remote <- config.Message{
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Text: message.Text,
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Username: message.Username,
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UserID: message.UserID,
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Channel: "api",
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Avatar: message.Avatar,
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Account: b.Account,
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Gateway: message.Gateway,
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Protocol: "api",
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}
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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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closeNotifier := c.Response().CloseNotify()
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for {
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select {
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case <-closeNotifier:
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return nil
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default:
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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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return nil
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}
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