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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package web
import (
"net/http"
"strconv"
"strings"
"github.com/NYTimes/gziphandler"
l4g "github.com/alecthomas/log4go"
"github.com/mattermost/mattermost-server/api"
"github.com/mattermost/mattermost-server/app"
"github.com/mattermost/mattermost-server/model"
"github.com/mattermost/mattermost-server/utils"
"github.com/mssola/user_agent"
)
func InitWeb() {
l4g.Debug(utils.T("web.init.debug"))
mainrouter := app.Global().Srv.Router
if *utils.Cfg.ServiceSettings.WebserverMode != "disabled" {
staticDir, _ := utils.FindDir(model.CLIENT_DIR)
l4g.Debug("Using client directory at %v", staticDir)
if *utils.Cfg.ServiceSettings.WebserverMode == "gzip" {
mainrouter.PathPrefix("/static/").Handler(gziphandler.GzipHandler(staticHandler(http.StripPrefix("/static/", http.FileServer(http.Dir(staticDir))))))
} else {
mainrouter.PathPrefix("/static/").Handler(staticHandler(http.StripPrefix("/static/", http.FileServer(http.Dir(staticDir)))))
}
mainrouter.Handle("/{anything:.*}", api.AppHandlerIndependent(root)).Methods("GET")
}
}
func staticHandler(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Cache-Control", "max-age=31556926, public")
if strings.HasSuffix(r.URL.Path, "/") {
http.NotFound(w, r)
return
}
handler.ServeHTTP(w, r)
})
}
//map should be of minimum required browser version.
//var browsersNotSupported string = "MSIE/11;Internet Explorer/11;Safari/9;Chrome/43;Edge/15;Firefox/52"
//var browserMinimumSupported = [6]string{"MSIE/11", "Internet Explorer/11", "Safari/9", "Chrome/43", "Edge/15", "Firefox/52"}
var browserMinimumSupported = map[string]int{
"MSIE": 11,
"Internet Explorer": 11,
"Safari": 9,
"Chrome": 43,
"Edge": 15,
"Firefox": 52,
}
func CheckBrowserCompatability(ua *user_agent.UserAgent) bool {
bname, bversion := ua.Browser()
l4g.Debug("Detected Browser: %v %v", bname, bversion)
curVersion := strings.Split(bversion, ".")
intCurVersion, _ := strconv.Atoi(curVersion[0])
if version, exist := browserMinimumSupported[bname]; exist && intCurVersion < version {
return false
}
return true
}
func root(c *api.Context, w http.ResponseWriter, r *http.Request) {
if !CheckBrowserCompatability(user_agent.New(r.UserAgent())) {
w.Header().Set("Cache-Control", "no-store")
page := utils.NewHTMLTemplate("unsupported_browser", c.Locale)
page.Props["Title"] = c.T("web.error.unsupported_browser.title")
page.Props["Message"] = c.T("web.error.unsupported_browser.message")
page.RenderToWriter(w)
return
}
if api.IsApiCall(r) {
api.Handle404(w, r)
return
}
w.Header().Set("Cache-Control", "no-cache, max-age=31556926, public")
staticDir, _ := utils.FindDir(model.CLIENT_DIR)
http.ServeFile(w, r, staticDir+"root.html")
}
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