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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package app
import (
"net/http"
"path"
"strings"
"github.com/gorilla/mux"
"github.com/mattermost/mattermost-server/mlog"
"github.com/mattermost/mattermost-server/model"
"github.com/mattermost/mattermost-server/plugin"
"github.com/mattermost/mattermost-server/utils"
)
func (a *App) ServePluginRequest(w http.ResponseWriter, r *http.Request) {
if a.Plugins == nil || !*a.Config().PluginSettings.Enable {
err := model.NewAppError("ServePluginRequest", "app.plugin.disabled.app_error", nil, "Enable plugins to serve plugin requests", http.StatusNotImplemented)
a.Log.Error(err.Error())
w.WriteHeader(err.StatusCode)
w.Header().Set("Content-Type", "application/json")
w.Write([]byte(err.ToJson()))
return
}
params := mux.Vars(r)
hooks, err := a.Plugins.HooksForPlugin(params["plugin_id"])
if err != nil {
a.Log.Error("Access to route for non-existent plugin", mlog.String("missing_plugin_id", params["plugin_id"]), mlog.Err(err))
http.NotFound(w, r)
return
}
a.servePluginRequest(w, r, hooks.ServeHTTP)
}
func (a *App) servePluginRequest(w http.ResponseWriter, r *http.Request, handler func(*plugin.Context, http.ResponseWriter, *http.Request)) {
token := ""
authHeader := r.Header.Get(model.HEADER_AUTH)
if strings.HasPrefix(strings.ToUpper(authHeader), model.HEADER_BEARER+" ") {
token = authHeader[len(model.HEADER_BEARER)+1:]
} else if strings.HasPrefix(strings.ToLower(authHeader), model.HEADER_TOKEN+" ") {
token = authHeader[len(model.HEADER_TOKEN)+1:]
} else if cookie, _ := r.Cookie(model.SESSION_COOKIE_TOKEN); cookie != nil && (r.Method == "GET" || r.Header.Get(model.HEADER_REQUESTED_WITH) == model.HEADER_REQUESTED_WITH_XML) {
token = cookie.Value
} else {
token = r.URL.Query().Get("access_token")
}
r.Header.Del("Mattermost-User-Id")
if token != "" {
if session, err := a.GetSession(token); session != nil && err == nil {
r.Header.Set("Mattermost-User-Id", session.UserId)
}
}
cookies := r.Cookies()
r.Header.Del("Cookie")
for _, c := range cookies {
if c.Name != model.SESSION_COOKIE_TOKEN {
r.AddCookie(c)
}
}
r.Header.Del(model.HEADER_AUTH)
r.Header.Del("Referer")
params := mux.Vars(r)
subpath, _ := utils.GetSubpathFromConfig(a.Config())
newQuery := r.URL.Query()
newQuery.Del("access_token")
r.URL.RawQuery = newQuery.Encode()
r.URL.Path = strings.TrimPrefix(r.URL.Path, path.Join(subpath, "plugins", params["plugin_id"]))
handler(&plugin.Context{}, w, r)
}
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