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// +build elementweb
package embed
import (
"fmt"
"io"
"net/http"
"regexp"
"github.com/gorilla/mux"
"github.com/tidwall/sjson"
)
// From within the Element Web directory:
// go run github.com/mjibson/esc -o /path/to/dendrite/internal/embed/fs_elementweb.go -private -pkg embed .
var cssFile = regexp.MustCompile("\\.css$")
var jsFile = regexp.MustCompile("\\.js$")
type mimeFixingHandler struct {
fs http.Handler
}
func (h mimeFixingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
ruri := r.RequestURI
fmt.Println(ruri)
switch {
case cssFile.MatchString(ruri):
w.Header().Set("Content-Type", "text/css")
case jsFile.MatchString(ruri):
w.Header().Set("Content-Type", "application/javascript")
default:
}
h.fs.ServeHTTP(w, r)
}
func Embed(rootMux *mux.Router, listenPort int, serverName string) {
embeddedFS := _escFS(false)
embeddedServ := mimeFixingHandler{http.FileServer(embeddedFS)}
rootMux.NotFoundHandler = embeddedServ
rootMux.HandleFunc("/config.json", func(w http.ResponseWriter, r *http.Request) {
url := fmt.Sprintf("http://%s:%d", r.Header("Host"), listenPort)
configFile, err := embeddedFS.Open("/config.sample.json")
if err != nil {
w.WriteHeader(500)
io.WriteString(w, "Couldn't open the file: "+err.Error())
return
}
configFileInfo, err := configFile.Stat()
if err != nil {
w.WriteHeader(500)
io.WriteString(w, "Couldn't stat the file: "+err.Error())
return
}
buf := make([]byte, configFileInfo.Size())
n, err := configFile.Read(buf)
if err != nil {
w.WriteHeader(500)
io.WriteString(w, "Couldn't read the file: "+err.Error())
return
}
if int64(n) != configFileInfo.Size() {
w.WriteHeader(500)
io.WriteString(w, "The returned file size didn't match what we expected")
return
}
js, _ := sjson.SetBytes(buf, "default_server_config.m\\.homeserver.base_url", url)
js, _ = sjson.SetBytes(js, "default_server_config.m\\.homeserver.server_name", serverName)
js, _ = sjson.SetBytes(js, "brand", fmt.Sprintf("Element %s", serverName))
js, _ = sjson.SetBytes(js, "disable_guests", true)
js, _ = sjson.SetBytes(js, "disable_3pid_login", true)
js, _ = sjson.DeleteBytes(js, "welcomeUserId")
_, _ = w.Write(js)
})
fmt.Println("*-------------------------------*")
fmt.Println("| This build includes Element Web! |")
fmt.Println("*-------------------------------*")
fmt.Println("Point your browser to:", url)
fmt.Println()
}
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