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Bug 1144689 - Allow setting manually a fetch time and modified time for cache entries. r=fabrice
This commit is contained in:
Antonio M. Amaya
parent
25df92a2d7
commit
ffd9c6817a
@ -46,32 +46,43 @@ function enableOfflineCacheForApp(aPrincipal) {
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}
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function storeCache(applicationCache, url, file, itemType) {
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function storeCache(applicationCache, url, file, itemType, metadata) {
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let storage =
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Services.cache2.appCacheStorage(LoadContextInfo.default, applicationCache);
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let uri = Services.io.newURI(url, null, null);
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let nowGMT = new Date().toGMTString();
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metadata = metadata || {};
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metadata.lastFetched = metadata.lastFetched || nowGMT;
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metadata.lastModified = metadata.lastModified || nowGMT;
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storage.asyncOpenURI(uri, "", nsICacheStorage.OPEN_TRUNCATE, {
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onCacheEntryAvailable:
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function (cacheEntry, isNew, appCache, result) {
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cacheEntry.setMetaDataElement('request-method', 'GET');
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cacheEntry.setMetaDataElement('response-head', 'HTTP/1.1 200 OK\r\n');
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cacheEntry.setMetaDataElement("request-method", "GET");
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cacheEntry.setMetaDataElement("response-head",
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"HTTP/1.1 200 OK\r\n" +
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"Date: " + metadata.lastFetched + "\r\n" +
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"Last-Modified: " + metadata.lastModified + "\r\n" +
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"Cache-Control: no-cache\r\n");
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let outputStream = cacheEntry.openOutputStream(0);
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// Input-Output stream machinery in order to push nsIFile content into cache
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let inputStream = Cc['@mozilla.org/network/file-input-stream;1']
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// Input-Output stream machinery in order to push nsIFile content into
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// cache
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let inputStream = Cc["@mozilla.org/network/file-input-stream;1"]
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.createInstance(Ci.nsIFileInputStream);
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inputStream.init(file, 1, -1, null);
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let bufferedOutputStream = Cc['@mozilla.org/network/buffered-output-stream;1']
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.createInstance(Ci.nsIBufferedOutputStream);
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let bufferedOutputStream =
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Cc["@mozilla.org/network/buffered-output-stream;1"]
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.createInstance(Ci.nsIBufferedOutputStream);
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bufferedOutputStream.init(outputStream, 1024);
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bufferedOutputStream.writeFrom(inputStream, inputStream.available());
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bufferedOutputStream.flush();
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bufferedOutputStream.close();
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inputStream.close();
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cacheEntry.setExpirationTime(0);
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cacheEntry.markValid();
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debug (file.path + ' -> ' + url + ' (' + itemType + ')');
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debug (file.path + " -> " + url + " (" + itemType + ")");
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applicationCache.markEntry(url, itemType);
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cacheEntry.close();
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}
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@ -206,8 +217,12 @@ function installCache(app) {
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return;
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}
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let cacheDir = makeFile(app.cachePath)
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let cacheDir = makeFile(app.cachePath);
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cacheDir.append(app.appId);
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let resourcesMetadata = cacheDir.clone();
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resourcesMetadata.append('resources_metadata.json');
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cacheDir.append('cache');
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if (!cacheDir.exists())
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return;
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@ -218,55 +233,72 @@ function installCache(app) {
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return;
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let principal = Services.scriptSecurityManager.getAppCodebasePrincipal(
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app.origin, app.localId, false);
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app.origin, app.localId, false);
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enableOfflineCacheForApp(principal);
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// If the build has been correctly configured, this should not happen!
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// If we install the cache anyway, it won't be updateable. If we don't install
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// it, the application won't be useable offline.
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let metadataLoaded;
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if (!resourcesMetadata.exists()) {
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// Not debug, since this is something that should be logged always!
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dump("OfflineCacheInstaller: App " + app.appId + " does have an app cache" +
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" but does not have a resources_metadata.json file!");
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metadataLoaded = Promise.resolve({});
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} else {
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metadataLoaded = new Promise(
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(resolve, reject) =>
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readFile(resourcesMetadata, principal, content => resolve(JSON.parse(content))));
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}
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// Get the url for the manifest.
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let appcacheURL = app.appcache_path;
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metadataLoaded.then(function(metadata) {
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enableOfflineCacheForApp(principal);
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// The group ID contains application id and 'f' for not being hosted in
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// a browser element, but a mozbrowser iframe.
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// See netwerk/cache/nsDiskCacheDeviceSQL.cpp: AppendJARIdentifier
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let groupID = appcacheURL + '#' + app.localId+ '+f';
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let applicationCache = applicationCacheService.createApplicationCache(groupID);
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applicationCache.activate();
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// Get the url for the manifest.
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let appcacheURL = app.appcache_path;
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readFile(cacheManifest, principal, function readAppCache(content) {
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let entries = parseAppCache(app, cacheManifest.path, content);
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// The group ID contains application id and 'f' for not being hosted in
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// a browser element, but a mozbrowser iframe.
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// See netwerk/cache/nsDiskCacheDeviceSQL.cpp: AppendJARIdentifier
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let groupID = appcacheURL + '#' + app.localId+ '+f';
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let applicationCache = applicationCacheService.createApplicationCache(groupID);
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applicationCache.activate();
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entries.urls.forEach(function processCachedFile(url) {
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// Get this nsIFile from cache folder for this URL
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// We have absolute urls, so remove the origin part to locate the
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// files.
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let path = url.replace(app.origin.spec, '');
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let file = cacheDir.clone();
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let paths = path.split('/');
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paths.forEach(file.append);
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readFile(cacheManifest, principal, function readAppCache(content) {
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let entries = parseAppCache(app, cacheManifest.path, content);
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if (!file.exists()) {
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let msg = 'File ' + file.path + ' exists in the manifest but does ' +
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'not points to a real file.';
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throw new Error(msg);
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}
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entries.urls.forEach(function processCachedFile(url) {
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// Get this nsIFile from cache folder for this URL
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// We have absolute urls, so remove the origin part to locate the
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// files.
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let path = url.replace(app.origin.spec, '');
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let file = cacheDir.clone();
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let paths = path.split('/');
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paths.forEach(file.append);
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let itemType = nsIApplicationCache.ITEM_EXPLICIT;
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if (entries.fallbacks.indexOf(url) > -1) {
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debug('add fallback: ' + url + '\n');
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itemType |= nsIApplicationCache.ITEM_FALLBACK;
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}
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storeCache(applicationCache, url, file, itemType);
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if (!file.exists()) {
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let msg = 'File ' + file.path + ' exists in the manifest but does ' +
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'not points to a real file.';
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throw new Error(msg);
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}
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let itemType = nsIApplicationCache.ITEM_EXPLICIT;
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if (entries.fallbacks.indexOf(url) > -1) {
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debug('add fallback: ' + url + '\n');
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itemType |= nsIApplicationCache.ITEM_FALLBACK;
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}
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storeCache(applicationCache, url, file, itemType, metadata[path]);
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});
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let array = new MutableArray();
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entries.namespaces.forEach(function processNamespace([type, spec, data]) {
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debug('add namespace: ' + type + ' - ' + spec + ' - ' + data + '\n');
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array.appendElement(new Namespace(type, spec, data), false);
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});
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applicationCache.addNamespaces(array);
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storeCache(applicationCache, appcacheURL, cacheManifest,
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nsIApplicationCache.ITEM_MANIFEST);
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});
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let array = new MutableArray();
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entries.namespaces.forEach(function processNamespace([type, spec, data]) {
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debug('add namespace: ' + type + ' - ' + spec + ' - ' + data + '\n');
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array.appendElement(new Namespace(type, spec, data), false);
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});
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applicationCache.addNamespaces(array);
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storeCache(applicationCache, appcacheURL, cacheManifest,
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nsIApplicationCache.ITEM_MANIFEST);
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});
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}
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