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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package web
import (
"fmt"
"io"
"net/http"
"strings"
"github.com/gorilla/mux"
"github.com/gorilla/schema"
"github.com/mattermost/mattermost-server/mlog"
"github.com/mattermost/mattermost-server/model"
)
func (w *Web) InitWebhooks() {
w.MainRouter.Handle("/hooks/commands/{id:[A-Za-z0-9]+}", w.NewHandler(commandWebhook)).Methods("POST")
w.MainRouter.Handle("/hooks/{id:[A-Za-z0-9]+}", w.NewHandler(incomingWebhook)).Methods("POST")
}
func incomingWebhook(c *Context, w http.ResponseWriter, r *http.Request) {
params := mux.Vars(r)
id := params["id"]
r.ParseForm()
var err *model.AppError
incomingWebhookPayload := &model.IncomingWebhookRequest{}
contentType := r.Header.Get("Content-Type")
if strings.Split(contentType, "; ")[0] == "application/x-www-form-urlencoded" {
payload := strings.NewReader(r.FormValue("payload"))
incomingWebhookPayload, err = decodePayload(payload)
if err != nil {
c.Err = err
return
}
} else if strings.HasPrefix(contentType, "multipart/form-data") {
r.ParseMultipartForm(0)
decoder := schema.NewDecoder()
err := decoder.Decode(incomingWebhookPayload, r.PostForm)
if err != nil {
c.Err = model.NewAppError("incomingWebhook", "api.webhook.incoming.error", nil, err.Error(), http.StatusBadRequest)
return
}
} else {
incomingWebhookPayload, err = decodePayload(r.Body)
if err != nil {
c.Err = err
return
}
}
if c.App.Config().LogSettings.EnableWebhookDebugging {
mlog.Debug(fmt.Sprint("Incoming webhook received. Content=", incomingWebhookPayload.ToJson()))
}
err = c.App.HandleIncomingWebhook(id, incomingWebhookPayload)
if err != nil {
c.Err = err
return
}
w.Header().Set("Content-Type", "text/plain")
w.Write([]byte("ok"))
}
func commandWebhook(c *Context, w http.ResponseWriter, r *http.Request) {
params := mux.Vars(r)
id := params["id"]
response, err := model.CommandResponseFromHTTPBody(r.Header.Get("Content-Type"), r.Body)
if err != nil {
c.Err = model.NewAppError("commandWebhook", "web.command_webhook.parse.app_error", nil, err.Error(), http.StatusBadRequest)
return
}
appErr := c.App.HandleCommandWebhook(id, response)
if appErr != nil {
c.Err = appErr
return
}
w.Header().Set("Content-Type", "text/plain")
w.Write([]byte("ok"))
}
func decodePayload(payload io.Reader) (*model.IncomingWebhookRequest, *model.AppError) {
incomingWebhookPayload, decodeError := model.IncomingWebhookRequestFromJson(payload)
if decodeError != nil {
return nil, decodeError
}
return incomingWebhookPayload, nil
}
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