The Tor Browser: dom/apps/tests/file_app.sjs@b8a032363ba2 (annotated)

dom/apps/tests/file_app.sjs@b8a032363ba2 (annotated)

dom/apps/tests/file_app.sjs

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 var gBasePath = "tests/dom/apps/tests/";
 var gAppTemplatePath = "tests/dom/apps/tests/file_app.template.html";
 var gAppcacheTemplatePath = "tests/dom/apps/tests/file_cached_app.template.appcache";
 var gDefaultIcon = "default_icon";
 function makeResource(templatePath, version, apptype) {
   let icon = getState('icon') || gDefaultIcon;
   var res = readTemplate(templatePath).replace(/VERSIONTOKEN/g, version)
                                       .replace(/APPTYPETOKEN/g, apptype)
                                       .replace(/ICONTOKEN/g, icon);
   // Hack - This is necessary to make the tests pass, but hbambas says it
   // shouldn't be necessary. Comment it out and watch the tests fail.
   if (templatePath == gAppTemplatePath && apptype == 'cached') {
     res = res.replace('<html>', '<html manifest="file_app.sjs?apptype=cached&getappcache=true">');
   }
   return res;
 }
 function handleRequest(request, response) {
   var query = getQuery(request);
   // If this is a version update, update state and return.
   if ("setVersion" in query) {
     setState('version', query.setVersion);
     response.setHeader("Content-Type", "text/html", false);
     response.setHeader("Access-Control-Allow-Origin", "*", false);
     response.write('OK');
     return;
   }
   if ("setIcon" in query) {
     let icon = query.setIcon;
     if (icon === 'DEFAULT') {
       icon = null;
     }
     setState('icon', icon);
     response.setHeader("Content-Type", "text/html", false);
     response.setHeader("Access-Control-Allow-Origin", "*", false);
     response.write('OK');
     return;
   }
   // Get the app type.
   var apptype = query.apptype;
   if (apptype != 'hosted' && apptype != 'cached')
     throw "Invalid app type: " + apptype;
   // Get the version from server state and handle the etag.
   var version = Number(getState('version'));
   var etag = getEtag(request, version);
   dump("Server Etag: " + etag + "\n");
   if (etagMatches(request, etag)) {
     dump("Etags Match. Sending 304\n");
     response.setStatusLine(request.httpVersion, "304", "Not Modified");
     return;
   }
   response.setHeader("Etag", etag, false);
   if (request.hasHeader("If-None-Match"))
     dump("Client Etag: " + request.getHeader("If-None-Match") + "\n");
   else
     dump("No Client Etag\n");
   // Check if we're generating a webapp manifest.
   if ('getmanifest' in query) {
     var template = gBasePath + 'file_' + apptype + '_app.template.webapp';
     response.setHeader("Content-Type", "application/x-web-app-manifest+json", false);
     response.write(makeResource(template, version, apptype));
     return;
   }
   // If apptype==cached, we might be generating the appcache manifest.
   //
   // NB: Among other reasons, we use the same sjs file here so that the version
   //     state is shared.
   if (apptype == 'cached' && 'getappcache' in query) {
     response.setHeader("Content-Type", "text/cache-manifest", false);
     response.write(makeResource(gAppcacheTemplatePath, version, apptype));
     return;
   }
   // Generate the app.
   response.setHeader("Content-Type", "text/html", false);
   response.write(makeResource(gAppTemplatePath, version, apptype));
 }
 function getEtag(request, version) {
   return request.queryString.replace(/&/g, '-').replace(/=/g, '-') + '-' + version;
 }
 function etagMatches(request, etag) {
   return request.hasHeader("If-None-Match") && request.getHeader("If-None-Match") == etag;
 }
 function getQuery(request) {
   var query = {};
   request.queryString.split('&').forEach(function (val) {
     var [name, value] = val.split('=');
     query[name] = unescape(value);
   });
   return query;
 }
 // Copy-pasted incantations. There ought to be a better way to synchronously read
 // a file into a string, but I guess we're trying to discourage that.
 function readTemplate(path) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"].
                         getService(Components.interfaces.nsIProperties).
                         get("CurWorkD", Components.interfaces.nsILocalFile);
   var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
                         createInstance(Components.interfaces.nsIFileInputStream);
   var cis = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
                        createInstance(Components.interfaces.nsIConverterInputStream);
   var split = path.split("/");
   for(var i = 0; i < split.length; ++i) {
     file.append(split[i]);
   }
   fis.init(file, -1, -1, false);
   cis.init(fis, "UTF-8", 0, 0);
   var data = "";
   let (str = {}) {
     let read = 0;
     do {
       read = cis.readString(0xffffffff, str); // read as much as we can and put it in str.value
       data += str.value;
     } while (read != 0);
   }
   cis.close();
   return data;
 }

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dom/apps/tests/file_app.sjs@b8a032363ba2 (annotated)

dom/apps/tests/file_app.sjs