Beginnings of administrative API.

The "stats.json" file is moved under "galene-api", where the rest
of the API will live.

static/stats.js

@@ -25,7 +25,7 @@ async function listStats() {
 
     let l;
     try {
-        let r = await fetch('/stats.json');
+        let r = await fetch('/galene-api/.stats');
         if(!r.ok)
             throw new Error(`${r.status} ${r.statusText}`);
         l = await r.json();

webserver/api.go

@@ -0,0 +1,57 @@
+package webserver
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+	"strings"
+
+	"github.com/jech/galene/stats"
+)
+
+func apiHandler(w http.ResponseWriter, r *http.Request) {
+	username, password, ok := r.BasicAuth()
+	if !ok {
+		failAuthentication(w, "galene-api")
+		return
+	}
+
+	if ok, err := adminMatch(username, password); !ok {
+		if err != nil {
+			log.Printf("Administrator password: %v", err)
+		}
+		failAuthentication(w, "galene-api")
+		return
+	}
+
+	if !strings.HasPrefix(r.URL.Path, "/galene-api/") {
+		http.NotFound(w, r)
+		return
+	}
+
+	first, kind, rest := splitPath(r.URL.Path[len("/galene/api"):])
+	if first != "" {
+		http.NotFound(w, r)
+		return
+	}
+
+	if kind == ".stats" && rest == "" {
+		if r.Method != "HEAD" && r.Method != "GET" {
+			http.Error(w, "method not allowed",
+				http.StatusMethodNotAllowed)
+		}
+		w.Header().Set("content-type", "application/json")
+		w.Header().Set("cache-control", "no-cache")
+		if r.Method == "HEAD" {
+			return
+		}
+
+		ss := stats.GetGroups()
+		e := json.NewEncoder(w)
+		e.Encode(ss)
+		return
+	}
+
+	http.NotFound(w, r)
+	return
+}

webserver/webserver.go

@@ -26,7 +26,6 @@ import (
 	"github.com/jech/galene/diskwriter"
 	"github.com/jech/galene/group"
 	"github.com/jech/galene/rtpconn"
-	"github.com/jech/galene/stats"
 )
 
 var server atomic.Value
@@ -46,10 +45,7 @@ func Serve(address string, dataDir string) error {
 	http.HandleFunc("/recordings/", recordingsHandler)
 	http.HandleFunc("/ws", wsHandler)
 	http.HandleFunc("/public-groups.json", publicHandler)
-	http.HandleFunc("/stats.json",
-		func(w http.ResponseWriter, r *http.Request) {
-			statsHandler(w, r, dataDir)
-		})
+	http.HandleFunc("/galene-api/", apiHandler)
 
 	s := &http.Server{
 		Addr:              address,
@@ -493,35 +489,6 @@ func failAuthentication(w http.ResponseWriter, realm string) {
 	http.Error(w, "Haha!", http.StatusUnauthorized)
 }
 
-func statsHandler(w http.ResponseWriter, r *http.Request, dataDir string) {
-	username, password, ok := r.BasicAuth()
-	if !ok {
-		failAuthentication(w, "stats")
-		return
-	}
-
-	if ok, err := adminMatch(username, password); !ok {
-		if err != nil {
-			log.Printf("Administrator password: %v", err)
-		}
-		failAuthentication(w, "stats")
-		return
-	}
-
-	w.Header().Set("content-type", "application/json")
-	w.Header().Set("cache-control", "no-cache")
-	if r.Method == "HEAD" {
-		return
-	}
-
-	ss := stats.GetGroups()
-	e := json.NewEncoder(w)
-	err := e.Encode(ss)
-	if err != nil {
-		log.Printf("stats.json: %v", err)
-	}
-}
-
 var wsUpgrader = websocket.Upgrader{
 	HandshakeTimeout: 30 * time.Second,
 }