Adding APIs to reload config, recycle db connections and ping server (#3096)

* Adding APIs to reload config, recycle db connections and ping server

* Fixing unit test

* Adding unit tests

api/general.go

@@ -0,0 +1,56 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package api
+
+import (
+	"fmt"
+	"net/http"
+
+	l4g "github.com/alecthomas/log4go"
+
+	"github.com/mattermost/platform/model"
+	"github.com/mattermost/platform/utils"
+)
+
+func InitGeneral() {
+	l4g.Debug(utils.T("api.general.init.debug"))
+
+	BaseRoutes.General.Handle("/client_props", ApiAppHandler(getClientConfig)).Methods("GET")
+	BaseRoutes.General.Handle("/log_client", ApiAppHandler(logClient)).Methods("POST")
+	BaseRoutes.General.Handle("/ping", ApiAppHandler(ping)).Methods("GET")
+
+}
+
+func getClientConfig(c *Context, w http.ResponseWriter, r *http.Request) {
+	w.Write([]byte(model.MapToJson(utils.ClientCfg)))
+}
+
+func logClient(c *Context, w http.ResponseWriter, r *http.Request) {
+	m := model.MapFromJson(r.Body)
+
+	lvl := m["level"]
+	msg := m["message"]
+
+	if len(msg) > 400 {
+		msg = msg[0:399]
+	}
+
+	if lvl == "ERROR" {
+		err := &model.AppError{}
+		err.Message = msg
+		err.Id = msg
+		err.Where = "client"
+		c.LogError(err)
+	}
+
+	ReturnStatusOK(w)
+}
+
+func ping(c *Context, w http.ResponseWriter, r *http.Request) {
+	m := make(map[string]string)
+	m["version"] = model.CurrentVersion
+	m["server_time"] = fmt.Sprintf("%v", model.GetMillis())
+	m["node_id"] = ""
+	w.Write([]byte(model.MapToJson(m)))
+}