[node] Complete fetch_manget test

node/fetch_magnet.js

@@ -2,14 +2,32 @@ const jlibtorrent = require('./jlibtorrent.js');
 
 console.log("Using libtorrent version: " + jlibtorrent.LibTorrent.fullVersion());
 
-const l = function (a) {
-    console.log(a.type() + " - " + a.what() + " - " + a.message());
-}
-
 const sp = new jlibtorrent.SettingsPack();
-const s = new jlibtorrent.Session(sp, false, l);
+const s = new jlibtorrent.Session(sp, false);
+
+s.on('alert', function (a) {
+    if (a.type() === jlibtorrent.swig.metadata_received_alert.alert_type) {
+        a = jlibtorrent.swig.alert.cast_to_metadata_received_alert(a);
+        console.log(a)
+        var th = a.handle;
+        var ti = th.get_torrent_copy();
+        var entry = new jlibtorrent.swig.create_torrent(ti).generate();
+        console.log(entry.to_string());
+        process.exit(0);
+    }
+
+    if (a.type() === jlibtorrent.swig.metadata_failed_alert.alert_type) {
+        console.log("Failed to receive the magnet metadata");
+        process.exit(0);
+    }
+});
+
+function wait_for_nodes() {
+    s.fetchMagnet("magnet:?xt=urn:btih:a83cc13bf4a07e85b938dcf06aa707955687ca7c");
+}
 
-s.fetchMagnet("magnet:?xt=urn:btih:a83cc13bf4a07e85b938dcf06aa707955687ca7c");
+console.log("Waiting 3 seconds to request...patience...");
+setTimeout(wait_for_nodes, 3000);
 
 process.stdout.write('Press ENTER to exit...');
 process.stdin.once('data', function (data) {

node/jlibtorrent.js

@@ -170,6 +170,10 @@ const swig = require('./jlibtorrent.node');
         return this.sp;
     }
 
+    Session.prototype.postDHTStats = function () {
+        this.s.post_dht_stats();
+    }
+
     Session.prototype.fetchMagnet = function (uri) {
         var p = swig.add_torrent_params.create_instance_disabled_storage();
         var ec = new swig.error_code();