proper nodejs versioning, encryption working

hacktv_updsrv/ServiceVault/wtv-update/sync.js

@@ -0,0 +1,36 @@
+var content_dir = service_dir + '/content/';
+var diskmap_dir = content_dir + '/diskmaps/';
+
+
+if (query['diskmap']) {
+    if (fs.lstatSync(diskmap_dir + query['diskmap'] + ".txt")) {
+        var diskmap_data = fs.readFileSync(diskmap_dir + query['diskmap'] + ".txt").toString();
+        // try to parse diskmap and get an accurate timestamp for webtv versioning
+        // check all files in the diskmap and return the timestamp of the most recently modified
+
+        data = '';
+        var latest_file_ts = 0;
+        diskmap_data.split("\n").forEach(function (v) {
+            if (v.indexOf(" sync ") != -1) {
+                v = v.trim();
+                var vcon = v.substring(v.indexOf("content/"));
+                vcon = vcon.replace("content/", content_dir)
+                var vconstat = Math.floor(fs.lstatSync(vcon).mtimeMs / 1000);
+                if (vconstat > latest_file_ts) {
+                    latest_file_ts = vconstat
+                }
+                // todo read client post and only give whats needed
+                // instead of all that is available
+                // vconstat has the mtime of each file, we need to parse the post_data
+                data += v + "\n";
+            } else {
+                data += v + "\n";
+            }
+        });
+        //data = diskmap_data.replace("!VERS!", latest_file_ts);
+    }
+}
+
+headers = `200 OK
+Content-type: text/download-list`
+