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-rw-r--r--application/basilisk/components/feeds/BrowserFeeds.manifest25
-rw-r--r--application/basilisk/components/feeds/FeedConverter.js565
-rw-r--r--application/basilisk/components/feeds/FeedWriter.js1000
-rw-r--r--application/basilisk/components/feeds/WebContentConverter.js1063
-rw-r--r--application/basilisk/components/feeds/content/subscribe.js25
-rw-r--r--application/basilisk/components/feeds/content/subscribe.xhtml74
-rw-r--r--application/basilisk/components/feeds/jar.mn7
-rw-r--r--application/basilisk/components/feeds/moz.build34
-rw-r--r--application/basilisk/components/feeds/nsFeedSniffer.cpp370
-rw-r--r--application/basilisk/components/feeds/nsFeedSniffer.h37
-rw-r--r--application/basilisk/components/feeds/nsIFeedResultService.idl70
-rw-r--r--application/basilisk/components/feeds/nsIWebContentConverterRegistrar.idl117
12 files changed, 3387 insertions, 0 deletions
diff --git a/application/basilisk/components/feeds/BrowserFeeds.manifest b/application/basilisk/components/feeds/BrowserFeeds.manifest
new file mode 100644
index 000000000..ac5c299fa
--- /dev/null
+++ b/application/basilisk/components/feeds/BrowserFeeds.manifest
@@ -0,0 +1,25 @@
+# This component must restrict its registration for the app-startup category
+# to the specific list of apps that use it so it doesn't get loaded in xpcshell.
+# Thus we restrict it to these apps:
+#
+# b2g: {3c2e2abc-06d4-11e1-ac3b-374f68613e61}
+# browser: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
+# mobile/android: {aa3c5121-dab2-40e2-81ca-7ea25febc110}
+# mobile/xul: {a23983c0-fd0e-11dc-95ff-0800200c9a66}
+# graphene: {d1bfe7d9-c01e-4237-998b-7b5f960a4314}
+
+component {229fa115-9412-4d32-baf3-2fc407f76fb1} FeedConverter.js
+contract @mozilla.org/streamconv;1?from=application/vnd.mozilla.maybe.feed&to=*/* {229fa115-9412-4d32-baf3-2fc407f76fb1}
+contract @mozilla.org/streamconv;1?from=application/vnd.mozilla.maybe.video.feed&to=*/* {229fa115-9412-4d32-baf3-2fc407f76fb1}
+contract @mozilla.org/streamconv;1?from=application/vnd.mozilla.maybe.audio.feed&to=*/* {229fa115-9412-4d32-baf3-2fc407f76fb1}
+component {2376201c-bbc6-472f-9b62-7548040a61c6} FeedConverter.js
+contract @mozilla.org/browser/feeds/result-service;1 {2376201c-bbc6-472f-9b62-7548040a61c6}
+component {4f91ef2e-57ba-472e-ab7a-b4999e42d6c0} FeedConverter.js
+contract @mozilla.org/network/protocol;1?name=feed {4f91ef2e-57ba-472e-ab7a-b4999e42d6c0}
+component {1c31ed79-accd-4b94-b517-06e0c81999d5} FeedConverter.js
+contract @mozilla.org/network/protocol;1?name=pcast {1c31ed79-accd-4b94-b517-06e0c81999d5}
+component {49bb6593-3aff-4eb3-a068-2712c28bd58e} FeedWriter.js
+contract @mozilla.org/browser/feeds/result-writer;1 {49bb6593-3aff-4eb3-a068-2712c28bd58e}
+component {792a7e82-06a0-437c-af63-b2d12e808acc} WebContentConverter.js
+contract @mozilla.org/embeddor.implemented/web-content-handler-registrar;1 {792a7e82-06a0-437c-af63-b2d12e808acc}
+category app-startup WebContentConverter service,@mozilla.org/embeddor.implemented/web-content-handler-registrar;1 application={3c2e2abc-06d4-11e1-ac3b-374f68613e61} application={ec8030f7-c20a-464f-9b0e-13a3a9e97384} application={aa3c5121-dab2-40e2-81ca-7ea25febc110} application={a23983c0-fd0e-11dc-95ff-0800200c9a66} application={d1bfe7d9-c01e-4237-998b-7b5f960a4314}
diff --git a/application/basilisk/components/feeds/FeedConverter.js b/application/basilisk/components/feeds/FeedConverter.js
new file mode 100644
index 000000000..5d9666eaa
--- /dev/null
+++ b/application/basilisk/components/feeds/FeedConverter.js
@@ -0,0 +1,565 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/debug.js");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+function LOG(str) {
+ dump("*** " + str + "\n");
+}
+
+const FS_CONTRACTID = "@mozilla.org/browser/feeds/result-service;1";
+const FPH_CONTRACTID = "@mozilla.org/network/protocol;1?name=feed";
+const PCPH_CONTRACTID = "@mozilla.org/network/protocol;1?name=pcast";
+
+const TYPE_MAYBE_FEED = "application/vnd.mozilla.maybe.feed";
+const TYPE_MAYBE_VIDEO_FEED = "application/vnd.mozilla.maybe.video.feed";
+const TYPE_MAYBE_AUDIO_FEED = "application/vnd.mozilla.maybe.audio.feed";
+const TYPE_ANY = "*/*";
+
+const PREF_SELECTED_APP = "browser.feeds.handlers.application";
+const PREF_SELECTED_WEB = "browser.feeds.handlers.webservice";
+const PREF_SELECTED_ACTION = "browser.feeds.handler";
+const PREF_SELECTED_READER = "browser.feeds.handler.default";
+
+const PREF_VIDEO_SELECTED_APP = "browser.videoFeeds.handlers.application";
+const PREF_VIDEO_SELECTED_WEB = "browser.videoFeeds.handlers.webservice";
+const PREF_VIDEO_SELECTED_ACTION = "browser.videoFeeds.handler";
+const PREF_VIDEO_SELECTED_READER = "browser.videoFeeds.handler.default";
+
+const PREF_AUDIO_SELECTED_APP = "browser.audioFeeds.handlers.application";
+const PREF_AUDIO_SELECTED_WEB = "browser.audioFeeds.handlers.webservice";
+const PREF_AUDIO_SELECTED_ACTION = "browser.audioFeeds.handler";
+const PREF_AUDIO_SELECTED_READER = "browser.audioFeeds.handler.default";
+
+function getPrefAppForType(t) {
+ switch (t) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ return PREF_VIDEO_SELECTED_APP;
+
+ case Ci.nsIFeed.TYPE_AUDIO:
+ return PREF_AUDIO_SELECTED_APP;
+
+ default:
+ return PREF_SELECTED_APP;
+ }
+}
+
+function getPrefWebForType(t) {
+ switch (t) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ return PREF_VIDEO_SELECTED_WEB;
+
+ case Ci.nsIFeed.TYPE_AUDIO:
+ return PREF_AUDIO_SELECTED_WEB;
+
+ default:
+ return PREF_SELECTED_WEB;
+ }
+}
+
+function getPrefActionForType(t) {
+ switch (t) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ return PREF_VIDEO_SELECTED_ACTION;
+
+ case Ci.nsIFeed.TYPE_AUDIO:
+ return PREF_AUDIO_SELECTED_ACTION;
+
+ default:
+ return PREF_SELECTED_ACTION;
+ }
+}
+
+function getPrefReaderForType(t) {
+ switch (t) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ return PREF_VIDEO_SELECTED_READER;
+
+ case Ci.nsIFeed.TYPE_AUDIO:
+ return PREF_AUDIO_SELECTED_READER;
+
+ default:
+ return PREF_SELECTED_READER;
+ }
+}
+
+function safeGetCharPref(pref, defaultValue) {
+ var prefs =
+ Cc["@mozilla.org/preferences-service;1"].
+ getService(Ci.nsIPrefBranch);
+ try {
+ return prefs.getCharPref(pref);
+ } catch (e) {
+ }
+ return defaultValue;
+}
+
+function FeedConverter() {
+}
+FeedConverter.prototype = {
+ classID: Components.ID("{229fa115-9412-4d32-baf3-2fc407f76fb1}"),
+
+ /**
+ * This is the downloaded text data for the feed.
+ */
+ _data: null,
+
+ /**
+ * This is the object listening to the conversion, which is ultimately the
+ * docshell for the load.
+ */
+ _listener: null,
+
+ /**
+ * Records if the feed was sniffed
+ */
+ _sniffed: false,
+
+ /**
+ * See nsIStreamConverter.idl
+ */
+ convert(sourceStream, sourceType, destinationType,
+ context) {
+ throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+ },
+
+ /**
+ * See nsIStreamConverter.idl
+ */
+ asyncConvertData(sourceType, destinationType,
+ listener, context) {
+ this._listener = listener;
+ },
+
+ /**
+ * Whether or not the preview page is being forced.
+ */
+ _forcePreviewPage: false,
+
+ /**
+ * Release our references to various things once we're done using them.
+ */
+ _releaseHandles() {
+ this._listener = null;
+ this._request = null;
+ this._processor = null;
+ },
+
+ /**
+ * See nsIFeedResultListener.idl
+ */
+ handleResult(result) {
+ // Feeds come in various content types, which our feed sniffer coerces to
+ // the maybe.feed type. However, feeds are used as a transport for
+ // different data types, e.g. news/blogs (traditional feed), video/audio
+ // (podcasts) and photos (photocasts, photostreams). Each of these is
+ // different in that there's a different class of application suitable for
+ // handling feeds of that type, but without a content-type differentiation
+ // it is difficult for us to disambiguate.
+ //
+ // The other problem is that if the user specifies an auto-action handler
+ // for one feed application, the fact that the content type is shared means
+ // that all other applications will auto-load with that handler too,
+ // regardless of the content-type.
+ //
+ // This means that content-type alone is not enough to determine whether
+ // or not a feed should be auto-handled. This means that for feeds we need
+ // to always use this stream converter, even when an auto-action is
+ // specified, not the basic one provided by WebContentConverter. This
+ // converter needs to consume all of the data and parse it, and based on
+ // that determination make a judgment about type.
+ //
+ // Since there are no content types for this content, and I'm not going to
+ // invent any, the upshot is that while a user can set an auto-handler for
+ // generic feed content, the system will prevent them from setting an auto-
+ // handler for other stream types. In those cases, the user will always see
+ // the preview page and have to select a handler. We can guess and show
+ // a client handler, but will not be able to show web handlers for those
+ // types.
+ //
+ // If this is just a feed, not some kind of specialized application, then
+ // auto-handlers can be set and we should obey them.
+ try {
+ let feedService =
+ Cc["@mozilla.org/browser/feeds/result-service;1"].
+ getService(Ci.nsIFeedResultService);
+ if (!this._forcePreviewPage && result.doc) {
+ let feed = result.doc.QueryInterface(Ci.nsIFeed);
+ let handler = safeGetCharPref(getPrefActionForType(feed.type), "ask");
+
+ if (handler != "ask") {
+ if (handler == "reader")
+ handler = safeGetCharPref(getPrefReaderForType(feed.type), "bookmarks");
+ switch (handler) {
+ case "web":
+ let wccr =
+ Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
+ getService(Ci.nsIWebContentConverterService);
+ if ((feed.type == Ci.nsIFeed.TYPE_FEED &&
+ wccr.getAutoHandler(TYPE_MAYBE_FEED)) ||
+ (feed.type == Ci.nsIFeed.TYPE_VIDEO &&
+ wccr.getAutoHandler(TYPE_MAYBE_VIDEO_FEED)) ||
+ (feed.type == Ci.nsIFeed.TYPE_AUDIO &&
+ wccr.getAutoHandler(TYPE_MAYBE_AUDIO_FEED))) {
+ wccr.loadPreferredHandler(this._request);
+ return;
+ }
+ break;
+
+ default:
+ LOG("unexpected handler: " + handler);
+ // fall through -- let feed service handle error
+ case "bookmarks":
+ case "client":
+ case "default":
+ try {
+ let title = feed.title ? feed.title.plainText() : "";
+ let desc = feed.subtitle ? feed.subtitle.plainText() : "";
+ feedService.addToClientReader(result.uri.spec, title, desc, feed.type, handler);
+ return;
+ } catch (ex) { /* fallback to preview mode */ }
+ }
+ }
+ }
+
+ let ios =
+ Cc["@mozilla.org/network/io-service;1"].
+ getService(Ci.nsIIOService);
+ let chromeChannel;
+
+ // handling a redirect, hence forwarding the loadInfo from the old channel
+ // to the newchannel.
+ let oldChannel = this._request.QueryInterface(Ci.nsIChannel);
+ let loadInfo = oldChannel.loadInfo;
+
+ // If there was no automatic handler, or this was a podcast,
+ // photostream or some other kind of application, show the preview page
+ // if the parser returned a document.
+ if (result.doc) {
+
+ // Store the result in the result service so that the display
+ // page can access it.
+ feedService.addFeedResult(result);
+
+ // Now load the actual XUL document.
+ let aboutFeedsURI = ios.newURI("about:feeds");
+ chromeChannel = ios.newChannelFromURIWithLoadInfo(aboutFeedsURI, loadInfo);
+ chromeChannel.originalURI = result.uri;
+
+ // carry the origin attributes from the channel that loaded the feed.
+ chromeChannel.owner =
+ Services.scriptSecurityManager.createCodebasePrincipal(aboutFeedsURI,
+ loadInfo.originAttributes);
+ } else {
+ chromeChannel = ios.newChannelFromURIWithLoadInfo(result.uri, loadInfo);
+ }
+
+ chromeChannel.loadGroup = this._request.loadGroup;
+ chromeChannel.asyncOpen2(this._listener);
+ } finally {
+ this._releaseHandles();
+ }
+ },
+
+ /**
+ * See nsIStreamListener.idl
+ */
+ onDataAvailable(request, context, inputStream,
+ sourceOffset, count) {
+ if (this._processor)
+ this._processor.onDataAvailable(request, context, inputStream,
+ sourceOffset, count);
+ },
+
+ /**
+ * See nsIRequestObserver.idl
+ */
+ onStartRequest(request, context) {
+ let channel = request.QueryInterface(Ci.nsIChannel);
+
+ // Check for a header that tells us there was no sniffing
+ // The value doesn't matter.
+ try {
+ let httpChannel = channel.QueryInterface(Ci.nsIHttpChannel);
+ // Make sure to check requestSucceeded before the potentially-throwing
+ // getResponseHeader.
+ if (!httpChannel.requestSucceeded) {
+ // Just give up, but don't forget to cancel the channel first!
+ request.cancel(Cr.NS_BINDING_ABORTED);
+ return;
+ }
+
+ // Note: this throws if the header is not set.
+ httpChannel.getResponseHeader("X-Moz-Is-Feed");
+ } catch (ex) {
+ this._sniffed = true;
+ }
+
+ this._request = request;
+
+ // Save and reset the forced state bit early, in case there's some kind of
+ // error.
+ let feedService =
+ Cc["@mozilla.org/browser/feeds/result-service;1"].
+ getService(Ci.nsIFeedResultService);
+ this._forcePreviewPage = feedService.forcePreviewPage;
+ feedService.forcePreviewPage = false;
+
+ // Parse feed data as it comes in
+ this._processor =
+ Cc["@mozilla.org/feed-processor;1"].
+ createInstance(Ci.nsIFeedProcessor);
+ this._processor.listener = this;
+ this._processor.parseAsync(null, channel.URI);
+
+ this._processor.onStartRequest(request, context);
+ },
+
+ /**
+ * See nsIRequestObserver.idl
+ */
+ onStopRequest(request, context, status) {
+ if (this._processor)
+ this._processor.onStopRequest(request, context, status);
+ },
+
+ /**
+ * See nsISupports.idl
+ */
+ QueryInterface(iid) {
+ if (iid.equals(Ci.nsIFeedResultListener) ||
+ iid.equals(Ci.nsIStreamConverter) ||
+ iid.equals(Ci.nsIStreamListener) ||
+ iid.equals(Ci.nsIRequestObserver) ||
+ iid.equals(Ci.nsISupports))
+ return this;
+ throw Cr.NS_ERROR_NO_INTERFACE;
+ },
+};
+
+/**
+ * Keeps parsed FeedResults around for use elsewhere in the UI after the stream
+ * converter completes.
+ */
+function FeedResultService() {
+}
+
+FeedResultService.prototype = {
+ classID: Components.ID("{2376201c-bbc6-472f-9b62-7548040a61c6}"),
+
+ /**
+ * A URI spec -> [nsIFeedResult] hash. We have to keep a list as the
+ * value in case the same URI is requested concurrently.
+ */
+ _results: { },
+
+ /**
+ * See nsIFeedResultService.idl
+ */
+ forcePreviewPage: false,
+
+ /**
+ * See nsIFeedResultService.idl
+ */
+ addToClientReader(spec, title, subtitle, feedType, feedReader) {
+ if (!feedReader) {
+ feedReader = "default";
+ }
+
+ let handler = safeGetCharPref(getPrefActionForType(feedType), "bookmarks");
+ if (handler == "ask" || handler == "reader")
+ handler = feedReader;
+
+ switch (handler) {
+ case "client":
+ Services.cpmm.sendAsyncMessage("FeedConverter:ExecuteClientApp",
+ { spec,
+ title,
+ subtitle,
+ feedHandler: getPrefAppForType(feedType) });
+ break;
+ case "default":
+ // Default system feed reader
+ Services.cpmm.sendAsyncMessage("FeedConverter:ExecuteClientApp",
+ { spec,
+ title,
+ subtitle,
+ feedHandler: "default" });
+ break;
+ default:
+ // "web" should have been handled elsewhere
+ LOG("unexpected handler: " + handler);
+ // fall through
+ case "bookmarks":
+ Services.cpmm.sendAsyncMessage("FeedConverter:addLiveBookmark",
+ { spec, title, subtitle });
+ break;
+ }
+ },
+
+ /**
+ * See nsIFeedResultService.idl
+ */
+ addFeedResult(feedResult) {
+ NS_ASSERT(feedResult.uri != null, "null URI!");
+ NS_ASSERT(feedResult.uri != null, "null feedResult!");
+ let spec = feedResult.uri.spec;
+ if (!this._results[spec])
+ this._results[spec] = [];
+ this._results[spec].push(feedResult);
+ },
+
+ /**
+ * See nsIFeedResultService.idl
+ */
+ getFeedResult(uri) {
+ NS_ASSERT(uri != null, "null URI!");
+ let resultList = this._results[uri.spec];
+ for (let result of resultList) {
+ if (result.uri == uri)
+ return result;
+ }
+ return null;
+ },
+
+ /**
+ * See nsIFeedResultService.idl
+ */
+ removeFeedResult(uri) {
+ NS_ASSERT(uri != null, "null URI!");
+ let resultList = this._results[uri.spec];
+ if (!resultList)
+ return;
+ let deletions = 0;
+ for (let i = 0; i < resultList.length; ++i) {
+ if (resultList[i].uri == uri) {
+ delete resultList[i];
+ ++deletions;
+ }
+ }
+
+ // send the holes to the end
+ resultList.sort();
+ // and trim the list
+ resultList.splice(resultList.length - deletions, deletions);
+ if (resultList.length == 0)
+ delete this._results[uri.spec];
+ },
+
+ createInstance(outer, iid) {
+ if (outer != null)
+ throw Cr.NS_ERROR_NO_AGGREGATION;
+ return this.QueryInterface(iid);
+ },
+
+ QueryInterface(iid) {
+ if (iid.equals(Ci.nsIFeedResultService) ||
+ iid.equals(Ci.nsIFactory) ||
+ iid.equals(Ci.nsISupports))
+ return this;
+ throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+ },
+};
+
+/**
+ * A protocol handler that attempts to deal with the variant forms of feed:
+ * URIs that are actually either http or https.
+ */
+function GenericProtocolHandler() {
+}
+GenericProtocolHandler.prototype = {
+ _init(scheme) {
+ let ios =
+ Cc["@mozilla.org/network/io-service;1"].
+ getService(Ci.nsIIOService);
+ this._http = ios.getProtocolHandler("http");
+ this._scheme = scheme;
+ },
+
+ get scheme() {
+ return this._scheme;
+ },
+
+ get protocolFlags() {
+ let {URI_DANGEROUS_TO_LOAD, ALLOWS_PROXY_HTTP, ALLOWS_PROXY} =
+ Ci.nsIProtocolHandler;
+ return URI_DANGEROUS_TO_LOAD | ALLOWS_PROXY | ALLOWS_PROXY_HTTP;
+ },
+
+ get defaultPort() {
+ return this._http.defaultPort;
+ },
+
+ allowPort(port, scheme) {
+ return this._http.allowPort(port, scheme);
+ },
+
+ newURI(spec, originalCharset, baseURI) {
+ // Feed URIs can be either nested URIs of the form feed:realURI (in which
+ // case we create a nested URI for the realURI) or feed://example.com, in
+ // which case we create a nested URI for the real protocol which is http.
+
+ let scheme = this._scheme + ":";
+ if (spec.substr(0, scheme.length) != scheme)
+ throw Cr.NS_ERROR_MALFORMED_URI;
+
+ let prefix = spec.substr(scheme.length, 2) == "//" ? "http:" : "";
+ let inner = Services.io.newURI(spec.replace(scheme, prefix),
+ originalCharset, baseURI);
+
+ if (!["http", "https"].includes(inner.scheme))
+ throw Cr.NS_ERROR_MALFORMED_URI;
+
+ let uri = Services.io.QueryInterface(Ci.nsINetUtil).newSimpleNestedURI(inner);
+ uri.spec = inner.spec.replace(prefix, scheme);
+ return uri;
+ },
+
+ newChannel2(aUri, aLoadInfo) {
+ let inner = aUri.QueryInterface(Ci.nsINestedURI).innerURI;
+ let channel = Cc["@mozilla.org/network/io-service;1"].
+ getService(Ci.nsIIOService).
+ newChannelFromURIWithLoadInfo(inner, aLoadInfo);
+
+ if (channel instanceof Components.interfaces.nsIHttpChannel)
+ // Set this so we know this is supposed to be a feed
+ channel.setRequestHeader("X-Moz-Is-Feed", "1", false);
+ channel.originalURI = aUri;
+ return channel;
+ },
+
+ QueryInterface(iid) {
+ if (iid.equals(Ci.nsIProtocolHandler) ||
+ iid.equals(Ci.nsISupports))
+ return this;
+ throw Cr.NS_ERROR_NO_INTERFACE;
+ }
+};
+
+function FeedProtocolHandler() {
+ this._init("feed");
+}
+FeedProtocolHandler.prototype = new GenericProtocolHandler();
+FeedProtocolHandler.prototype.classID = Components.ID("{4f91ef2e-57ba-472e-ab7a-b4999e42d6c0}");
+
+function PodCastProtocolHandler() {
+ this._init("pcast");
+}
+PodCastProtocolHandler.prototype = new GenericProtocolHandler();
+PodCastProtocolHandler.prototype.classID = Components.ID("{1c31ed79-accd-4b94-b517-06e0c81999d5}");
+
+var components = [FeedConverter,
+ FeedResultService,
+ FeedProtocolHandler,
+ PodCastProtocolHandler];
+
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
diff --git a/application/basilisk/components/feeds/FeedWriter.js b/application/basilisk/components/feeds/FeedWriter.js
new file mode 100644
index 000000000..751cb6534
--- /dev/null
+++ b/application/basilisk/components/feeds/FeedWriter.js
@@ -0,0 +1,1000 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+
+const FEEDWRITER_CID = Components.ID("{49bb6593-3aff-4eb3-a068-2712c28bd58e}");
+const FEEDWRITER_CONTRACTID = "@mozilla.org/browser/feeds/result-writer;1";
+
+function LOG(str) {
+ let prefB = Cc["@mozilla.org/preferences-service;1"].
+ getService(Ci.nsIPrefBranch);
+
+ let shouldLog = false;
+ try {
+ shouldLog = prefB.getBoolPref("feeds.log");
+ } catch (ex) {
+ }
+
+ if (shouldLog)
+ dump("*** Feeds: " + str + "\n");
+}
+
+/**
+ * Wrapper function for nsIIOService::newURI.
+ * @param aURLSpec
+ * The URL string from which to create an nsIURI.
+ * @returns an nsIURI object, or null if the creation of the URI failed.
+ */
+function makeURI(aURLSpec, aCharset) {
+ let ios = Cc["@mozilla.org/network/io-service;1"].
+ getService(Ci.nsIIOService);
+ try {
+ return ios.newURI(aURLSpec, aCharset);
+ } catch (ex) { }
+
+ return null;
+}
+
+const XML_NS = "http://www.w3.org/XML/1998/namespace";
+const HTML_NS = "http://www.w3.org/1999/xhtml";
+const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
+const URI_BUNDLE = "chrome://browser/locale/feeds/subscribe.properties";
+
+const TITLE_ID = "feedTitleText";
+const SUBTITLE_ID = "feedSubtitleText";
+
+/**
+ * Converts a number of bytes to the appropriate unit that results in a
+ * number that needs fewer than 4 digits
+ *
+ * @return a pair: [new value with 3 sig. figs., its unit]
+ */
+function convertByteUnits(aBytes) {
+ let units = ["bytes", "kilobyte", "megabyte", "gigabyte"];
+ let unitIndex = 0;
+
+ // convert to next unit if it needs 4 digits (after rounding), but only if
+ // we know the name of the next unit
+ while ((aBytes >= 999.5) && (unitIndex < units.length - 1)) {
+ aBytes /= 1024;
+ unitIndex++;
+ }
+
+ // Get rid of insignificant bits by truncating to 1 or 0 decimal points
+ // 0 -> 0; 1.2 -> 1.2; 12.3 -> 12.3; 123.4 -> 123; 234.5 -> 235
+ aBytes = aBytes.toFixed((aBytes > 0) && (aBytes < 100) ? 1 : 0);
+
+ return [aBytes, units[unitIndex]];
+}
+
+function FeedWriter() {
+ this._selectedApp = undefined;
+ this._selectedAppMenuItem = null;
+ this._subscribeCallback = null;
+ this._defaultHandlerMenuItem = null;
+}
+
+FeedWriter.prototype = {
+ _getPropertyAsBag(container, property) {
+ return container.fields.getProperty(property).
+ QueryInterface(Ci.nsIPropertyBag2);
+ },
+
+ _getPropertyAsString(container, property) {
+ try {
+ return container.fields.getPropertyAsAString(property);
+ } catch (e) {
+ }
+ return "";
+ },
+
+ _setContentText(id, text) {
+ let element = this._document.getElementById(id);
+ let textNode = text.createDocumentFragment(element);
+ while (element.hasChildNodes())
+ element.removeChild(element.firstChild);
+ element.appendChild(textNode);
+ if (text.base) {
+ element.setAttributeNS(XML_NS, "base", text.base.spec);
+ }
+ },
+
+ /**
+ * Safely sets the href attribute on an anchor tag, providing the URI
+ * specified can be loaded according to rules.
+ * @param element
+ * The element to set a URI attribute on
+ * @param attribute
+ * The attribute of the element to set the URI to, e.g. href or src
+ * @param uri
+ * The URI spec to set as the href
+ */
+ _safeSetURIAttribute(element, attribute, uri) {
+ let secman = Cc["@mozilla.org/scriptsecuritymanager;1"].
+ getService(Ci.nsIScriptSecurityManager);
+ const flags = Ci.nsIScriptSecurityManager.DISALLOW_INHERIT_PRINCIPAL;
+ try {
+ // TODO Is this necessary?
+ secman.checkLoadURIStrWithPrincipal(this._feedPrincipal, uri, flags);
+ // checkLoadURIStrWithPrincipal will throw if the link URI should not be
+ // loaded, either because our feedURI isn't allowed to load it or per
+ // the rules specified in |flags|, so we'll never "linkify" the link...
+ } catch (e) {
+ // Not allowed to load this link because secman.checkLoadURIStr threw
+ return;
+ }
+
+ element.setAttribute(attribute, uri);
+ },
+
+ __bundle: null,
+ get _bundle() {
+ if (!this.__bundle) {
+ this.__bundle = Cc["@mozilla.org/intl/stringbundle;1"].
+ getService(Ci.nsIStringBundleService).
+ createBundle(URI_BUNDLE);
+ }
+ return this.__bundle;
+ },
+
+ _getFormattedString(key, params) {
+ return this._bundle.formatStringFromName(key, params, params.length);
+ },
+
+ _getString(key) {
+ return this._bundle.GetStringFromName(key);
+ },
+
+ _setCheckboxCheckedState(aValue) {
+ let checkbox = this._document.getElementById("alwaysUse");
+ if (checkbox) {
+ // see checkbox.xml, xbl bindings are not applied within the sandbox! TODO
+ let change = (aValue != (checkbox.getAttribute("checked") == "true"));
+ if (aValue)
+ checkbox.setAttribute("checked", "true");
+ else
+ checkbox.removeAttribute("checked");
+
+ if (change) {
+ let event = this._document.createEvent("Events");
+ event.initEvent("CheckboxStateChange", true, true);
+ checkbox.dispatchEvent(event);
+ }
+ }
+ },
+
+ /**
+ * Returns a date suitable for displaying in the feed preview.
+ * If the date cannot be parsed, the return value is "false".
+ * @param dateString
+ * A date as extracted from a feed entry. (entry.updated)
+ */
+ _parseDate(dateString) {
+ // Convert the date into the user's local time zone
+ let dateObj = new Date(dateString);
+
+ // Make sure the date we're given is valid.
+ if (!dateObj.getTime())
+ return false;
+
+ return this._dateFormatter.format(dateObj);
+ },
+
+ __dateFormatter: null,
+ get _dateFormatter() {
+ if (!this.__dateFormatter) {
+ const locale = Cc["@mozilla.org/chrome/chrome-registry;1"]
+ .getService(Ci.nsIXULChromeRegistry)
+ .getSelectedLocale("global", true);
+ const dtOptions = { year: "numeric", month: "long", day: "numeric",
+ hour: "numeric", minute: "numeric" };
+ this.__dateFormatter = new Intl.DateTimeFormat(locale, dtOptions);
+ }
+ return this.__dateFormatter;
+ },
+
+ /**
+ * Returns the feed type.
+ */
+ __feedType: null,
+ _getFeedType() {
+ if (this.__feedType != null)
+ return this.__feedType;
+
+ try {
+ // grab the feed because it's got the feed.type in it.
+ let container = this._getContainer();
+ let feed = container.QueryInterface(Ci.nsIFeed);
+ this.__feedType = feed.type;
+ return feed.type;
+ } catch (ex) { }
+
+ return Ci.nsIFeed.TYPE_FEED;
+ },
+
+ /**
+ * Writes the feed title into the preview document.
+ * @param container
+ * The feed container
+ */
+ _setTitleText(container) {
+ if (container.title) {
+ let title = container.title.plainText();
+ this._setContentText(TITLE_ID, container.title);
+ this._document.title = title;
+ }
+
+ let feed = container.QueryInterface(Ci.nsIFeed);
+ if (feed && feed.subtitle)
+ this._setContentText(SUBTITLE_ID, container.subtitle);
+ },
+
+ /**
+ * Writes the title image into the preview document if one is present.
+ * @param container
+ * The feed container
+ */
+ _setTitleImage(container) {
+ try {
+ let parts = container.image;
+
+ // Set up the title image (supplied by the feed)
+ let feedTitleImage = this._document.getElementById("feedTitleImage");
+ this._safeSetURIAttribute(feedTitleImage, "src",
+ parts.getPropertyAsAString("url"));
+
+ // Set up the title image link
+ let feedTitleLink = this._document.getElementById("feedTitleLink");
+
+ let titleText = this._getFormattedString("linkTitleTextFormat",
+ [parts.getPropertyAsAString("title")]);
+ let feedTitleText = this._document.getElementById("feedTitleText");
+ let titleImageWidth = parseInt(parts.getPropertyAsAString("width")) + 15;
+
+ // Fix the margin on the main title, so that the image doesn't run over
+ // the underline
+ feedTitleLink.setAttribute("title", titleText);
+ feedTitleText.style.marginRight = titleImageWidth + "px";
+
+ this._safeSetURIAttribute(feedTitleLink, "href",
+ parts.getPropertyAsAString("link"));
+ } catch (e) {
+ LOG("Failed to set Title Image (this is benign): " + e);
+ }
+ },
+
+ /**
+ * Writes all entries contained in the feed.
+ * @param container
+ * The container of entries in the feed
+ */
+ _writeFeedContent(container) {
+ // Build the actual feed content
+ let feed = container.QueryInterface(Ci.nsIFeed);
+ if (feed.items.length == 0)
+ return;
+
+ let feedContent = this._document.getElementById("feedContent");
+
+ for (let i = 0; i < feed.items.length; ++i) {
+ let entry = feed.items.queryElementAt(i, Ci.nsIFeedEntry);
+ entry.QueryInterface(Ci.nsIFeedContainer);
+
+ let entryContainer = this._document.createElementNS(HTML_NS, "div");
+ entryContainer.className = "entry";
+
+ // If the entry has a title, make it a link
+ if (entry.title) {
+ let a = this._document.createElementNS(HTML_NS, "a");
+ let span = this._document.createElementNS(HTML_NS, "span");
+ a.appendChild(span);
+ if (entry.title.base)
+ span.setAttributeNS(XML_NS, "base", entry.title.base.spec);
+ span.appendChild(entry.title.createDocumentFragment(a));
+
+ // Entries are not required to have links, so entry.link can be null.
+ if (entry.link)
+ this._safeSetURIAttribute(a, "href", entry.link.spec);
+
+ let title = this._document.createElementNS(HTML_NS, "h3");
+ title.appendChild(a);
+
+ let lastUpdated = this._parseDate(entry.updated);
+ if (lastUpdated) {
+ let dateDiv = this._document.createElementNS(HTML_NS, "div");
+ dateDiv.className = "lastUpdated";
+ dateDiv.textContent = lastUpdated;
+ title.appendChild(dateDiv);
+ }
+
+ entryContainer.appendChild(title);
+ }
+
+ let body = this._document.createElementNS(HTML_NS, "div");
+ let summary = entry.summary || entry.content;
+ let docFragment = null;
+ if (summary) {
+ if (summary.base)
+ body.setAttributeNS(XML_NS, "base", summary.base.spec);
+ else
+ LOG("no base?");
+ docFragment = summary.createDocumentFragment(body);
+ if (docFragment)
+ body.appendChild(docFragment);
+
+ // If the entry doesn't have a title, append a # permalink
+ // See http://scripting.com/rss.xml for an example
+ if (!entry.title && entry.link) {
+ let a = this._document.createElementNS(HTML_NS, "a");
+ a.appendChild(this._document.createTextNode("#"));
+ this._safeSetURIAttribute(a, "href", entry.link.spec);
+ body.appendChild(this._document.createTextNode(" "));
+ body.appendChild(a);
+ }
+
+ }
+ body.className = "feedEntryContent";
+ entryContainer.appendChild(body);
+
+ if (entry.enclosures && entry.enclosures.length > 0) {
+ let enclosuresDiv = this._buildEnclosureDiv(entry);
+ entryContainer.appendChild(enclosuresDiv);
+ }
+
+ let clearDiv = this._document.createElementNS(HTML_NS, "div");
+ clearDiv.style.clear = "both";
+
+ feedContent.appendChild(entryContainer);
+ feedContent.appendChild(clearDiv);
+ }
+ },
+
+ /**
+ * Takes a url to a media item and returns the best name it can come up with.
+ * Frequently this is the filename portion (e.g. passing in
+ * http://example.com/foo.mpeg would return "foo.mpeg"), but in more complex
+ * cases, this will return the entire url (e.g. passing in
+ * http://example.com/somedirectory/ would return
+ * http://example.com/somedirectory/).
+ * @param aURL
+ * The URL string from which to create a display name
+ * @returns a string
+ */
+ _getURLDisplayName(aURL) {
+ let url = makeURI(aURL);
+ url.QueryInterface(Ci.nsIURL);
+ if (url == null || url.fileName.length == 0)
+ return decodeURIComponent(aURL);
+
+ return decodeURIComponent(url.fileName);
+ },
+
+ /**
+ * Takes a FeedEntry with enclosures, generates the HTML code to represent
+ * them, and returns that.
+ * @param entry
+ * FeedEntry with enclosures
+ * @returns element
+ */
+ _buildEnclosureDiv(entry) {
+ let enclosuresDiv = this._document.createElementNS(HTML_NS, "div");
+ enclosuresDiv.className = "enclosures";
+
+ enclosuresDiv.appendChild(this._document.createTextNode(this._getString("mediaLabel")));
+
+ for (let i_enc = 0; i_enc < entry.enclosures.length; ++i_enc) {
+ let enc = entry.enclosures.queryElementAt(i_enc, Ci.nsIWritablePropertyBag2);
+
+ if (!(enc.hasKey("url")))
+ continue;
+
+ let enclosureDiv = this._document.createElementNS(HTML_NS, "div");
+ enclosureDiv.setAttribute("class", "enclosure");
+
+ let mozicon = "moz-icon://.txt?size=16";
+ let type_text = null;
+ let size_text = null;
+
+ if (enc.hasKey("type")) {
+ type_text = enc.get("type");
+ if (enc.hasKey("typeDesc"))
+ type_text = enc.get("typeDesc");
+
+ if (type_text && type_text.length > 0)
+ mozicon = "moz-icon://goat?size=16&contentType=" + enc.get("type");
+ }
+
+ if (enc.hasKey("length") && /^[0-9]+$/.test(enc.get("length"))) {
+ let enc_size = convertByteUnits(parseInt(enc.get("length")));
+
+ size_text = this._getFormattedString("enclosureSizeText",
+ [enc_size[0],
+ this._getString(enc_size[1])]);
+ }
+
+ let iconimg = this._document.createElementNS(HTML_NS, "img");
+ iconimg.setAttribute("src", mozicon);
+ iconimg.setAttribute("class", "type-icon");
+ enclosureDiv.appendChild(iconimg);
+
+ enclosureDiv.appendChild(this._document.createTextNode( " " ));
+
+ let enc_href = this._document.createElementNS(HTML_NS, "a");
+ enc_href.appendChild(this._document.createTextNode(this._getURLDisplayName(enc.get("url"))));
+ this._safeSetURIAttribute(enc_href, "href", enc.get("url"));
+ enclosureDiv.appendChild(enc_href);
+
+ if (type_text && size_text)
+ enclosureDiv.appendChild(this._document.createTextNode( " (" + type_text + ", " + size_text + ")"));
+
+ else if (type_text)
+ enclosureDiv.appendChild(this._document.createTextNode( " (" + type_text + ")"))
+
+ else if (size_text)
+ enclosureDiv.appendChild(this._document.createTextNode( " (" + size_text + ")"))
+
+ enclosuresDiv.appendChild(enclosureDiv);
+ }
+
+ return enclosuresDiv;
+ },
+
+ /**
+ * Gets a valid nsIFeedContainer object from the parsed nsIFeedResult.
+ * Displays error information if there was one.
+ * @returns A valid nsIFeedContainer object containing the contents of
+ * the feed.
+ */
+ _getContainer() {
+ let feedService =
+ Cc["@mozilla.org/browser/feeds/result-service;1"].
+ getService(Ci.nsIFeedResultService);
+
+ let result;
+ try {
+ result =
+ feedService.getFeedResult(this._getOriginalURI(this._window));
+ } catch (e) {
+ LOG("Subscribe Preview: feed not available?!");
+ }
+
+ if (result.bozo) {
+ LOG("Subscribe Preview: feed result is bozo?!");
+ }
+
+ let container;
+ try {
+ container = result.doc;
+ } catch (e) {
+ LOG("Subscribe Preview: no result.doc? Why didn't the original reload?");
+ return null;
+ }
+ return container;
+ },
+
+ /**
+ * Get moz-icon url for a file
+ * @param file
+ * A nsIFile object for which the moz-icon:// is returned
+ * @returns moz-icon url of the given file as a string
+ */
+ _getFileIconURL(file) {
+ let ios = Cc["@mozilla.org/network/io-service;1"].
+ getService(Ci.nsIIOService);
+ let fph = ios.getProtocolHandler("file")
+ .QueryInterface(Ci.nsIFileProtocolHandler);
+ let urlSpec = fph.getURLSpecFromFile(file);
+ return "moz-icon://" + urlSpec + "?size=16";
+ },
+
+ /**
+ * Displays a prompt from which the user may choose a (client) feed reader.
+ * @param aCallback the callback method, passes in true if a feed reader was
+ * selected, false otherwise.
+ */
+ _chooseClientApp(aCallback) {
+ this._subscribeCallback = aCallback;
+ this._mm.sendAsyncMessage("FeedWriter:ChooseClientApp",
+ { title: this._getString("chooseApplicationDialogTitle"),
+ feedType: this._getFeedType() });
+ },
+
+ _setSubscribeUsingLabel() {
+ let stringLabel = "subscribeFeedUsing";
+ switch (this._getFeedType()) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ stringLabel = "subscribeVideoPodcastUsing";
+ break;
+
+ case Ci.nsIFeed.TYPE_AUDIO:
+ stringLabel = "subscribeAudioPodcastUsing";
+ break;
+ }
+
+ let subscribeUsing = this._document.getElementById("subscribeUsingDescription");
+ let textNode = this._document.createTextNode(this._getString(stringLabel));
+ subscribeUsing.insertBefore(textNode, subscribeUsing.firstChild);
+ },
+
+ _setAlwaysUseLabel() {
+ let checkbox = this._document.getElementById("alwaysUse");
+ if (checkbox && this._handlersList) {
+ let handlerName = this._handlersList.selectedOptions[0]
+ .textContent;
+ let stringLabel = "alwaysUseForFeeds";
+ switch (this._getFeedType()) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ stringLabel = "alwaysUseForVideoPodcasts";
+ break;
+
+ case Ci.nsIFeed.TYPE_AUDIO:
+ stringLabel = "alwaysUseForAudioPodcasts";
+ break;
+ }
+
+ let label = this._getFormattedString(stringLabel, [handlerName]);
+
+ let checkboxText = this._document.getElementById("checkboxText");
+ if (checkboxText.lastChild.nodeType == checkboxText.TEXT_NODE) {
+ checkboxText.lastChild.textContent = label;
+ } else {
+ LOG("FeedWriter._setAlwaysUseLabel: Expected textNode as lastChild of alwaysUse label");
+ let textNode = this._document.createTextNode(label);
+ checkboxText.appendChild(textNode);
+ }
+ }
+ },
+
+ // nsIDomEventListener
+ handleEvent(event) {
+ if (event.target.ownerDocument != this._document) {
+ LOG("FeedWriter.handleEvent: Someone passed the feed writer as a listener to the events of another document!");
+ return;
+ }
+
+ switch (event.type) {
+ case "click":
+ if (event.target.id == "subscribeButton") {
+ this.subscribe();
+ }
+ break;
+ case "change":
+ LOG("Change fired");
+ if (event.target.selectedOptions[0].id == "chooseApplicationMenuItem") {
+ this._chooseClientApp(() => {
+ // Select the (per-prefs) selected handler if no application
+ // was selected
+ LOG("Selected handler after callback");
+ this._setAlwaysUseLabel();
+ });
+ } else {
+ this._setAlwaysUseLabel();
+ }
+ break;
+ }
+ },
+
+ _getWebHandlerElementsForURL(aURL) {
+ return this._handlersList.querySelectorAll('[webhandlerurl="' + aURL + '"]');
+ },
+
+ _setSelectedHandlerResponse(handler, url) {
+ LOG(`Selecting handler response ${handler} ${url}`);
+ switch (handler) {
+ case "web": {
+ if (this._handlersList) {
+ let handlers =
+ this._getWebHandlerElementsForURL(url);
+ if (handlers.length == 0) {
+ LOG(`Selected web handler isn't in the menulist ${url}`);
+ return;
+ }
+
+ handlers[0].selected = true;
+ }
+ break;
+ }
+ case "client":
+ case "default":
+ // do nothing, these are handled by the onchange event
+ break;
+ case "bookmarks":
+ default: {
+ let liveBookmarksMenuItem = this._document.getElementById("liveBookmarksMenuItem");
+ if (liveBookmarksMenuItem)
+ liveBookmarksMenuItem.selected = true;
+ }
+ }
+ },
+
+ _initSubscriptionUI(setupMessage) {
+ if (!this._handlersList)
+ return;
+ LOG("UI init");
+
+ let feedType = this._getFeedType();
+
+ // change the background
+ let header = this._document.getElementById("feedHeader");
+ switch (feedType) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ header.className = "videoPodcastBackground";
+ break;
+
+ case Ci.nsIFeed.TYPE_AUDIO:
+ header.className = "audioPodcastBackground";
+ break;
+
+ default:
+ header.className = "feedBackground";
+ }
+
+ let liveBookmarksMenuItem = this._document.getElementById("liveBookmarksMenuItem");
+
+ // Last-selected application
+ let menuItem = liveBookmarksMenuItem.cloneNode(false);
+ menuItem.removeAttribute("selected");
+ menuItem.setAttribute("id", "selectedAppMenuItem");
+ menuItem.setAttribute("handlerType", "client");
+
+ // Hide the menuitem until we select an app
+ menuItem.style.display = "none";
+ this._selectedAppMenuItem = menuItem;
+
+ this._handlersList.appendChild(this._selectedAppMenuItem);
+
+ // Create the menuitem for the default reader, but don't show/populate it until
+ // we get confirmation of what it is from the parent
+ menuItem = liveBookmarksMenuItem.cloneNode(false);
+ menuItem.removeAttribute("selected");
+ menuItem.setAttribute("id", "defaultHandlerMenuItem");
+ menuItem.setAttribute("handlerType", "client");
+ menuItem.style.display = "none";
+
+ this._defaultHandlerMenuItem = menuItem;
+ this._handlersList.appendChild(this._defaultHandlerMenuItem);
+
+ // "Choose Application..." menuitem
+ menuItem = liveBookmarksMenuItem.cloneNode(false);
+ menuItem.removeAttribute("selected");
+ menuItem.setAttribute("id", "chooseApplicationMenuItem");
+ menuItem.textContent = this._getString("chooseApplicationMenuItem");
+
+ this._handlersList.appendChild(menuItem);
+
+ // separator
+ let chooseAppSep = liveBookmarksMenuItem.nextElementSibling.cloneNode(false);
+ chooseAppSep.textContent = liveBookmarksMenuItem.nextElementSibling.textContent;
+ this._handlersList.appendChild(chooseAppSep);
+
+ for (let handler of setupMessage.handlers) {
+ if (!handler.uri) {
+ LOG("Handler with name " + handler.name + " has no URI!? Skipping...");
+ continue;
+ }
+ menuItem = liveBookmarksMenuItem.cloneNode(false);
+ menuItem.removeAttribute("selected");
+ menuItem.className = "menuitem-iconic";
+ menuItem.textContent = handler.name;
+ menuItem.setAttribute("handlerType", "web");
+ menuItem.setAttribute("webhandlerurl", handler.uri);
+ this._handlersList.appendChild(menuItem);
+ }
+
+ this._setSelectedHandlerResponse(setupMessage.reader.handler, setupMessage.reader.url);
+
+ if (setupMessage.defaultMenuItem) {
+ LOG(`Setting default menu item ${setupMessage.defaultMenuItem}`);
+ this._setApplicationLauncherMenuItem(this._defaultHandlerMenuItem, setupMessage.defaultMenuItem);
+ }
+ if (setupMessage.selectedMenuItem) {
+ LOG(`Setting selected menu item ${setupMessage.selectedMenuItem}`);
+ this._setApplicationLauncherMenuItem(this._selectedAppMenuItem, setupMessage.selectedMenuItem);
+ }
+
+ // "Subscribe using..."
+ this._setSubscribeUsingLabel();
+
+ // "Always use..." checkbox initial state
+ this._setCheckboxCheckedState(setupMessage.reader.alwaysUse);
+ this._setAlwaysUseLabel();
+
+ // We update the "Always use.." checkbox label whenever the selected item
+ // in the list is changed
+ this._handlersList.addEventListener("change", this);
+
+ // Set up the "Subscribe Now" button
+ this._document.getElementById("subscribeButton")
+ .addEventListener("click", this);
+
+ // first-run ui
+ if (setupMessage.showFirstRunUI) {
+ let textfeedinfo1, textfeedinfo2;
+ switch (feedType) {
+ case Ci.nsIFeed.TYPE_VIDEO:
+ textfeedinfo1 = "feedSubscriptionVideoPodcast1";
+ textfeedinfo2 = "feedSubscriptionVideoPodcast2";
+ break;
+ case Ci.nsIFeed.TYPE_AUDIO:
+ textfeedinfo1 = "feedSubscriptionAudioPodcast1";
+ textfeedinfo2 = "feedSubscriptionAudioPodcast2";
+ break;
+ default:
+ textfeedinfo1 = "feedSubscriptionFeed1";
+ textfeedinfo2 = "feedSubscriptionFeed2";
+ }
+
+ let feedinfo1 = this._document.getElementById("feedSubscriptionInfo1");
+ let feedinfo1Str = this._getString(textfeedinfo1);
+ let feedinfo2 = this._document.getElementById("feedSubscriptionInfo2");
+ let feedinfo2Str = this._getString(textfeedinfo2);
+
+ feedinfo1.textContent = feedinfo1Str;
+ feedinfo2.textContent = feedinfo2Str;
+
+ header.setAttribute("firstrun", "true");
+
+ this._mm.sendAsyncMessage("FeedWriter:ShownFirstRun");
+ }
+ },
+
+ /**
+ * Returns the original URI object of the feed and ensures that this
+ * component is only ever invoked from the preview document.
+ * @param aWindow
+ * The window of the document invoking the BrowserFeedWriter
+ */
+ _getOriginalURI(aWindow) {
+ let docShell = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebNavigation)
+ .QueryInterface(Ci.nsIDocShell);
+ let chan = docShell.currentDocumentChannel;
+
+ // We probably need to call Inherit() for this, but right now we can't call
+ // it from JS.
+ let attrs = docShell.getOriginAttributes();
+ let ssm = Services.scriptSecurityManager;
+ let nullPrincipal = ssm.createNullPrincipal(attrs);
+
+ // this channel is not going to be openend, use a nullPrincipal
+ // and the most restrctive securityFlag.
+ let resolvedURI = NetUtil.newChannel({
+ uri: "about:feeds",
+ loadingPrincipal: nullPrincipal,
+ securityFlags: Ci.nsILoadInfo.SEC_REQUIRE_SAME_ORIGIN_DATA_IS_BLOCKED,
+ contentPolicyType: Ci.nsIContentPolicy.TYPE_OTHER
+ }).URI;
+
+ if (resolvedURI.equals(chan.URI))
+ return chan.originalURI;
+
+ return null;
+ },
+
+ _window: null,
+ _document: null,
+ _feedURI: null,
+ _feedPrincipal: null,
+ _handlersList: null,
+
+ // BrowserFeedWriter WebIDL methods
+ init(aWindow) {
+ let window = aWindow;
+ this._feedURI = this._getOriginalURI(window);
+ if (!this._feedURI)
+ return;
+
+ this._window = window;
+ this._document = window.document;
+ this._handlersList = this._document.getElementById("handlersMenuList");
+
+ let secman = Cc["@mozilla.org/scriptsecuritymanager;1"].
+ getService(Ci.nsIScriptSecurityManager);
+ this._feedPrincipal = secman.createCodebasePrincipal(this._feedURI, {});
+
+ LOG("Subscribe Preview: feed uri = " + this._window.location.href);
+
+
+ this._mm.addMessageListener("FeedWriter:PreferenceUpdated", this);
+ this._mm.addMessageListener("FeedWriter:SetApplicationLauncherMenuItem", this);
+ this._mm.addMessageListener("FeedWriter:GetSubscriptionUIResponse", this);
+ this._mm.addMessageListener("FeedWriter:SetFeedPrefsAndSubscribeResponse", this);
+
+ const feedType = this._getFeedType();
+ this._mm.sendAsyncMessage("FeedWriter:GetSubscriptionUI",
+ { feedType });
+ },
+
+ receiveMessage(msg) {
+ if (!this._window) {
+ // this._window is null unless this.init was called with a trusted
+ // window object.
+ return;
+ }
+ LOG(`received message from parent ${msg.name}`);
+ switch (msg.name) {
+ case "FeedWriter:PreferenceUpdated":
+ // This is called when browser-feeds.js spots a pref change
+ // This will happen when
+ // - about:preferences#applications changes
+ // - another feed reader page changes the preference
+ // - when this page itself changes the select and there isn't a redirect
+ // bookmarks and launching an external app means the page stays open after subscribe
+ const feedType = this._getFeedType();
+ LOG(`Got prefChange! ${JSON.stringify(msg.data)} current type: ${feedType}`);
+ let feedTypePref = msg.data.default;
+ if (feedType in msg.data) {
+ feedTypePref = msg.data[feedType];
+ }
+ LOG(`Got pref ${JSON.stringify(feedTypePref)}`);
+ this._setCheckboxCheckedState(feedTypePref.alwaysUse);
+ this._setSelectedHandlerResponse(feedTypePref.handler, feedTypePref.url);
+ this._setAlwaysUseLabel();
+ break;
+ case "FeedWriter:SetFeedPrefsAndSubscribeResponse":
+ LOG(`FeedWriter:SetFeedPrefsAndSubscribeResponse - Redirecting ${msg.data.redirect}`);
+ this._window.location.href = msg.data.redirect;
+ break;
+ case "FeedWriter:GetSubscriptionUIResponse":
+ // Set up the subscription UI
+ this._initSubscriptionUI(msg.data);
+ break;
+ case "FeedWriter:SetApplicationLauncherMenuItem":
+ LOG(`FeedWriter:SetApplicationLauncherMenuItem - picked ${msg.data.name}`);
+ this._setApplicationLauncherMenuItem(this._selectedAppMenuItem, msg.data.name);
+ // Potentially a bit racy, but I don't think we can get into a state where this callback is set and
+ // we're not coming back from ChooseClientApp in browser-feeds.js
+ if (this._subscribeCallback) {
+ this._subscribeCallback();
+ this._subscribeCallback = null;
+ }
+ break;
+ }
+ },
+
+ _setApplicationLauncherMenuItem(menuItem, aName) {
+ /* unselect all handlers */
+ [...this._handlersList.children].forEach((option) => {
+ option.removeAttribute("selected");
+ });
+ menuItem.textContent = aName;
+ menuItem.style.display = "";
+ menuItem.selected = true;
+ },
+
+ writeContent() {
+ if (!this._window)
+ return;
+
+ try {
+ // Set up the feed content
+ let container = this._getContainer();
+ if (!container)
+ return;
+
+ this._setTitleText(container);
+ this._setTitleImage(container);
+ this._writeFeedContent(container);
+ } finally {
+ this._removeFeedFromCache();
+ }
+ },
+
+ close() {
+ this._document.getElementById("subscribeButton")
+ .removeEventListener("click", this);
+ this._handlersList
+ .removeEventListener("change", this);
+ this._document = null;
+ this._window = null;
+ this._handlersList = null;
+
+ this._removeFeedFromCache();
+ this.__bundle = null;
+ this._feedURI = null;
+
+ this._selectedApp = undefined;
+ this._selectedAppMenuItem = null;
+ this._defaultHandlerMenuItem = null;
+ },
+
+ _removeFeedFromCache() {
+ if (this._feedURI) {
+ let feedService = Cc["@mozilla.org/browser/feeds/result-service;1"].
+ getService(Ci.nsIFeedResultService);
+ feedService.removeFeedResult(this._feedURI);
+ this._feedURI = null;
+ }
+ },
+
+ subscribe() {
+ let feedType = this._getFeedType();
+
+ // Subscribe to the feed using the selected handler and save prefs
+ let defaultHandler = "reader";
+ let useAsDefault = this._document.getElementById("alwaysUse").getAttribute("checked");
+
+ let selectedItem = this._handlersList.selectedOptions[0];
+ let subscribeCallback = () => {
+ let feedReader = null;
+ let settings = {
+ feedType,
+ useAsDefault,
+ // Pull the title and subtitle out of the document
+ feedTitle: this._document.getElementById(TITLE_ID).textContent,
+ feedSubtitle: this._document.getElementById(SUBTITLE_ID).textContent,
+ feedLocation: this._window.location.href
+ };
+ if (selectedItem.hasAttribute("webhandlerurl")) {
+ feedReader = "web";
+ settings.uri = selectedItem.getAttribute("webhandlerurl");
+ } else {
+ switch (selectedItem.id) {
+ case "selectedAppMenuItem":
+ feedReader = "client";
+ break;
+ case "defaultHandlerMenuItem":
+ feedReader = "default";
+ break;
+ case "liveBookmarksMenuItem":
+ defaultHandler = "bookmarks";
+ feedReader = "bookmarks";
+ break;
+ }
+ }
+ settings.reader = feedReader;
+
+ // If "Always use..." is checked, we should set PREF_*SELECTED_ACTION
+ // to either "reader" (If a web reader or if an application is selected),
+ // or to "bookmarks" (if the live bookmarks option is selected).
+ // Otherwise, we should set it to "ask"
+ if (!useAsDefault) {
+ defaultHandler = "ask";
+ }
+ settings.action = defaultHandler;
+ LOG(`FeedWriter:SetFeedPrefsAndSubscribe - ${JSON.stringify(settings)}`);
+ this._mm.sendAsyncMessage("FeedWriter:SetFeedPrefsAndSubscribe",
+ settings);
+ }
+
+ // Show the file picker before subscribing if the
+ // choose application menuitem was chosen using the keyboard
+ if (selectedItem.id == "chooseApplicationMenuItem") {
+ this._chooseClientApp(function(aResult) {
+ if (aResult) {
+ selectedItem =
+ this._handlersList.selectedOptions[0];
+ subscribeCallback();
+ }
+ }.bind(this));
+ } else {
+ subscribeCallback();
+ }
+ },
+
+ get _mm() {
+ let mm = this._window.QueryInterface(Ci.nsIInterfaceRequestor).
+ getInterface(Ci.nsIDocShell).
+ QueryInterface(Ci.nsIInterfaceRequestor).
+ getInterface(Ci.nsIContentFrameMessageManager);
+ delete this._mm;
+ return this._mm = mm;
+ },
+
+ classID: FEEDWRITER_CID,
+ QueryInterface: XPCOMUtils.generateQI([Ci.nsIDOMEventListener, Ci.nsIObserver,
+ Ci.nsINavHistoryObserver,
+ Ci.nsIDOMGlobalPropertyInitializer])
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([FeedWriter]);
diff --git a/application/basilisk/components/feeds/WebContentConverter.js b/application/basilisk/components/feeds/WebContentConverter.js
new file mode 100644
index 000000000..df83b8425
--- /dev/null
+++ b/application/basilisk/components/feeds/WebContentConverter.js
@@ -0,0 +1,1063 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+function LOG(str) {
+ dump("*** " + str + "\n");
+}
+
+const WCCR_CONTRACTID = "@mozilla.org/embeddor.implemented/web-content-handler-registrar;1";
+const WCCR_CLASSID = Components.ID("{792a7e82-06a0-437c-af63-b2d12e808acc}");
+
+const WCC_CLASSID = Components.ID("{db7ebf28-cc40-415f-8a51-1b111851df1e}");
+const WCC_CLASSNAME = "Web Service Handler";
+
+const TYPE_MAYBE_FEED = "application/vnd.mozilla.maybe.feed";
+const TYPE_ANY = "*/*";
+
+const PREF_CONTENTHANDLERS_AUTO = "browser.contentHandlers.auto.";
+const PREF_CONTENTHANDLERS_BRANCH = "browser.contentHandlers.types.";
+const PREF_SELECTED_WEB = "browser.feeds.handlers.webservice";
+const PREF_SELECTED_ACTION = "browser.feeds.handler";
+const PREF_SELECTED_READER = "browser.feeds.handler.default";
+const PREF_HANDLER_EXTERNAL_PREFIX = "network.protocol-handler.external";
+
+const STRING_BUNDLE_URI = "chrome://browser/locale/feeds/subscribe.properties";
+
+const NS_ERROR_MODULE_DOM = 2152923136;
+const NS_ERROR_DOM_SYNTAX_ERR = NS_ERROR_MODULE_DOM + 12;
+
+function WebContentConverter() {
+}
+WebContentConverter.prototype = {
+ convert() { },
+ asyncConvertData() { },
+ onDataAvailable() { },
+ onStopRequest() { },
+
+ onStartRequest(request, context) {
+ let wccr =
+ Cc[WCCR_CONTRACTID].
+ getService(Ci.nsIWebContentConverterService);
+ wccr.loadPreferredHandler(request);
+ },
+
+ QueryInterface(iid) {
+ if (iid.equals(Ci.nsIStreamConverter) ||
+ iid.equals(Ci.nsIStreamListener) ||
+ iid.equals(Ci.nsISupports))
+ return this;
+ throw Cr.NS_ERROR_NO_INTERFACE;
+ }
+};
+
+let WebContentConverterFactory = {
+ createInstance(outer, iid) {
+ if (outer != null)
+ throw Cr.NS_ERROR_NO_AGGREGATION;
+ return new WebContentConverter().QueryInterface(iid);
+ },
+
+ QueryInterface(iid) {
+ if (iid.equals(Ci.nsIFactory) ||
+ iid.equals(Ci.nsISupports))
+ return this;
+ throw Cr.NS_ERROR_NO_INTERFACE;
+ }
+};
+
+function ServiceInfo(contentType, uri, name) {
+ this._contentType = contentType;
+ this._uri = uri;
+ this._name = name;
+}
+ServiceInfo.prototype = {
+ /**
+ * See nsIHandlerApp
+ */
+ get name() {
+ return this._name;
+ },
+
+ /**
+ * See nsIHandlerApp
+ */
+ equals(aHandlerApp) {
+ if (!aHandlerApp)
+ throw Cr.NS_ERROR_NULL_POINTER;
+
+ if (aHandlerApp instanceof Ci.nsIWebContentHandlerInfo &&
+ aHandlerApp.contentType == this.contentType &&
+ aHandlerApp.uri == this.uri)
+ return true;
+
+ return false;
+ },
+
+ /**
+ * See nsIWebContentHandlerInfo
+ */
+ get contentType() {
+ return this._contentType;
+ },
+
+ /**
+ * See nsIWebContentHandlerInfo
+ */
+ get uri() {
+ return this._uri;
+ },
+
+ /**
+ * See nsIWebContentHandlerInfo
+ */
+ getHandlerURI(uri) {
+ return this._uri.replace(/%s/gi, encodeURIComponent(uri));
+ },
+
+ QueryInterface(iid) {
+ if (iid.equals(Ci.nsIWebContentHandlerInfo) ||
+ iid.equals(Ci.nsISupports))
+ return this;
+ throw Cr.NS_ERROR_NO_INTERFACE;
+ }
+};
+
+const Utils = {
+ makeURI(aURL, aOriginCharset, aBaseURI) {
+ return Services.io.newURI(aURL, aOriginCharset, aBaseURI);
+ },
+
+ checkAndGetURI(aURIString, aContentWindow) {
+ let uri;
+ try {
+ let baseURI = aContentWindow.document.baseURIObject;
+ uri = this.makeURI(aURIString, null, baseURI);
+ } catch (ex) {
+ throw NS_ERROR_DOM_SYNTAX_ERR;
+ }
+
+ // For security reasons we reject non-http(s) urls (see bug 354316),
+ // we may need to revise this once we support more content types
+ if (uri.scheme != "http" && uri.scheme != "https") {
+ throw this.getSecurityError(
+ "Permission denied to add " + uri.spec + " as a content or protocol handler",
+ aContentWindow);
+ }
+
+ // We also reject handlers registered from a different host (see bug 402287)
+ if (!["http:", "https:"].includes(aContentWindow.location.protocol) ||
+ aContentWindow.location.hostname != uri.host) {
+ throw this.getSecurityError(
+ "Permission denied to add " + uri.spec + " as a content or protocol handler",
+ aContentWindow);
+ }
+
+ // If the uri doesn't contain '%s', it won't be a good handler
+ if (uri.spec.indexOf("%s") < 0)
+ throw NS_ERROR_DOM_SYNTAX_ERR;
+
+ return uri;
+ },
+
+ // NB: Throws if aProtocol is not allowed.
+ checkProtocolHandlerAllowed(aProtocol, aURIString, aWindowOrNull) {
+ // First, check to make sure this isn't already handled internally (we don't
+ // want to let them take over, say "chrome").
+ let handler = Services.io.getProtocolHandler(aProtocol);
+ if (!(handler instanceof Ci.nsIExternalProtocolHandler)) {
+ // This is handled internally, so we don't want them to register
+ throw this.getSecurityError(
+ `Permission denied to add ${aURIString} as a protocol handler`,
+ aWindowOrNull);
+ }
+
+ // check if it is in the black list
+ let pb = Services.prefs;
+ let allowed;
+ try {
+ allowed = pb.getBoolPref(PREF_HANDLER_EXTERNAL_PREFIX + "." + aProtocol);
+ } catch (e) {
+ allowed = pb.getBoolPref(PREF_HANDLER_EXTERNAL_PREFIX + "-default");
+ }
+ if (!allowed) {
+ throw this.getSecurityError(
+ `Not allowed to register a protocol handler for ${aProtocol}`,
+ aWindowOrNull);
+ }
+ },
+
+ // Return a SecurityError exception from the given Window if one is given. If
+ // none is given, just return the given error string, for lack of anything
+ // better.
+ getSecurityError(errorString, aWindowOrNull) {
+ if (!aWindowOrNull) {
+ return errorString;
+ }
+
+ return new aWindowOrNull.DOMException(errorString, "SecurityError");
+ },
+
+ /**
+ * Mappings from known feed types to our internal content type.
+ */
+ _mappings: {
+ "application/rss+xml": TYPE_MAYBE_FEED,
+ "application/atom+xml": TYPE_MAYBE_FEED,
+ },
+
+ resolveContentType(aContentType) {
+ if (aContentType in this._mappings)
+ return this._mappings[aContentType];
+ return aContentType;
+ }
+};
+
+function WebContentConverterRegistrar() {
+ this._contentTypes = {};
+ this._autoHandleContentTypes = {};
+}
+
+WebContentConverterRegistrar.prototype = {
+ get stringBundle() {
+ let sb = Services.strings.createBundle(STRING_BUNDLE_URI);
+ delete WebContentConverterRegistrar.prototype.stringBundle;
+ return WebContentConverterRegistrar.prototype.stringBundle = sb;
+ },
+
+ _getFormattedString(key, params) {
+ return this.stringBundle.formatStringFromName(key, params, params.length);
+ },
+
+ _getString(key) {
+ return this.stringBundle.GetStringFromName(key);
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ getAutoHandler(contentType) {
+ contentType = Utils.resolveContentType(contentType);
+ if (contentType in this._autoHandleContentTypes)
+ return this._autoHandleContentTypes[contentType];
+ return null;
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ setAutoHandler(contentType, handler) {
+ if (handler && !this._typeIsRegistered(contentType, handler.uri))
+ throw Cr.NS_ERROR_NOT_AVAILABLE;
+
+ contentType = Utils.resolveContentType(contentType);
+ this._setAutoHandler(contentType, handler);
+
+ let ps = Services.prefs;
+ let autoBranch = ps.getBranch(PREF_CONTENTHANDLERS_AUTO);
+ if (handler)
+ autoBranch.setCharPref(contentType, handler.uri);
+ else if (autoBranch.prefHasUserValue(contentType))
+ autoBranch.clearUserPref(contentType);
+
+ ps.savePrefFile(null);
+ },
+
+ /**
+ * Update the internal data structure (not persistent)
+ */
+ _setAutoHandler(contentType, handler) {
+ if (handler)
+ this._autoHandleContentTypes[contentType] = handler;
+ else if (contentType in this._autoHandleContentTypes)
+ delete this._autoHandleContentTypes[contentType];
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ getWebContentHandlerByURI(contentType, uri) {
+ return this.getContentHandlers(contentType)
+ .find(e => e.uri == uri) || null;
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ loadPreferredHandler(request) {
+ let channel = request.QueryInterface(Ci.nsIChannel);
+ let contentType = Utils.resolveContentType(channel.contentType);
+ let handler = this.getAutoHandler(contentType);
+ if (handler) {
+ request.cancel(Cr.NS_ERROR_FAILURE);
+
+ let webNavigation =
+ channel.notificationCallbacks.getInterface(Ci.nsIWebNavigation);
+ webNavigation.loadURI(handler.getHandlerURI(channel.URI.spec),
+ Ci.nsIWebNavigation.LOAD_FLAGS_NONE,
+ null, null, null);
+ }
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ removeProtocolHandler(aProtocol, aURITemplate) {
+ let eps = Cc["@mozilla.org/uriloader/external-protocol-service;1"].
+ getService(Ci.nsIExternalProtocolService);
+ let handlerInfo = eps.getProtocolHandlerInfo(aProtocol);
+ let handlers = handlerInfo.possibleApplicationHandlers;
+ for (let i = 0; i < handlers.length; i++) {
+ try { // We only want to test web handlers
+ let handler = handlers.queryElementAt(i, Ci.nsIWebHandlerApp);
+ if (handler.uriTemplate == aURITemplate) {
+ handlers.removeElementAt(i);
+ let hs = Cc["@mozilla.org/uriloader/handler-service;1"].
+ getService(Ci.nsIHandlerService);
+ hs.store(handlerInfo);
+ return;
+ }
+ } catch (e) { /* it wasn't a web handler */ }
+ }
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ removeContentHandler(contentType, uri) {
+ function notURI(serviceInfo) {
+ return serviceInfo.uri != uri;
+ }
+
+ if (contentType in this._contentTypes) {
+ this._contentTypes[contentType] =
+ this._contentTypes[contentType].filter(notURI);
+ }
+ },
+
+ /**
+ * These are types for which there is a separate content converter aside
+ * from our built in generic one. We should not automatically register
+ * a factory for creating a converter for these types.
+ */
+ _blockedTypes: {
+ "application/vnd.mozilla.maybe.feed": true,
+ },
+
+ /**
+ * Determines if a web handler is already registered.
+ *
+ * @param aProtocol
+ * The scheme of the web handler we are checking for.
+ * @param aURITemplate
+ * The URI template that the handler uses to handle the protocol.
+ * @return true if it is already registered, false otherwise.
+ */
+ _protocolHandlerRegistered(aProtocol, aURITemplate) {
+ let eps = Cc["@mozilla.org/uriloader/external-protocol-service;1"].
+ getService(Ci.nsIExternalProtocolService);
+ let handlerInfo = eps.getProtocolHandlerInfo(aProtocol);
+ let handlers = handlerInfo.possibleApplicationHandlers;
+ for (let i = 0; i < handlers.length; i++) {
+ try { // We only want to test web handlers
+ let handler = handlers.queryElementAt(i, Ci.nsIWebHandlerApp);
+ if (handler.uriTemplate == aURITemplate)
+ return true;
+ } catch (e) { /* it wasn't a web handler */ }
+ }
+ return false;
+ },
+
+ /**
+ * See nsIWebContentHandlerRegistrar
+ */
+ registerProtocolHandler(aProtocol, aURIString, aTitle, aBrowserOrWindow) {
+ LOG("registerProtocolHandler(" + aProtocol + "," + aURIString + "," + aTitle + ")");
+ let haveWindow = (aBrowserOrWindow instanceof Ci.nsIDOMWindow);
+ let uri;
+ if (haveWindow) {
+ uri = Utils.checkAndGetURI(aURIString, aBrowserOrWindow);
+ } else {
+ // aURIString must not be a relative URI.
+ uri = Utils.makeURI(aURIString, null);
+ }
+
+ // If the protocol handler is already registered, just return early.
+ if (this._protocolHandlerRegistered(aProtocol, uri.spec)) {
+ return;
+ }
+
+ let browser;
+ if (haveWindow) {
+ let browserWindow =
+ this._getBrowserWindowForContentWindow(aBrowserOrWindow);
+ browser = this._getBrowserForContentWindow(browserWindow,
+ aBrowserOrWindow);
+ } else {
+ browser = aBrowserOrWindow;
+ }
+ if (PrivateBrowsingUtils.isBrowserPrivate(browser)) {
+ // Inside the private browsing mode, we don't want to alert the user to save
+ // a protocol handler. We log it to the error console so that web developers
+ // would have some way to tell what's going wrong.
+ Services.console.
+ logStringMessage("Web page denied access to register a protocol handler inside private browsing mode");
+ return;
+ }
+
+ Utils.checkProtocolHandlerAllowed(aProtocol, aURIString,
+ haveWindow ? aBrowserOrWindow : null);
+
+ // Now Ask the user and provide the proper callback
+ let message = this._getFormattedString("addProtocolHandler",
+ [aTitle, uri.host, aProtocol]);
+
+ let notificationIcon = uri.prePath + "/favicon.ico";
+ let notificationValue = "Protocol Registration: " + aProtocol;
+ let addButton = {
+ label: this._getString("addProtocolHandlerAddButton"),
+ accessKey: this._getString("addProtocolHandlerAddButtonAccesskey"),
+ protocolInfo: { protocol: aProtocol, uri: uri.spec, name: aTitle },
+
+ callback(aNotification, aButtonInfo) {
+ let protocol = aButtonInfo.protocolInfo.protocol;
+ let name = aButtonInfo.protocolInfo.name;
+
+ let handler = Cc["@mozilla.org/uriloader/web-handler-app;1"].
+ createInstance(Ci.nsIWebHandlerApp);
+ handler.name = name;
+ handler.uriTemplate = aButtonInfo.protocolInfo.uri;
+
+ let eps = Cc["@mozilla.org/uriloader/external-protocol-service;1"].
+ getService(Ci.nsIExternalProtocolService);
+ let handlerInfo = eps.getProtocolHandlerInfo(protocol);
+ handlerInfo.possibleApplicationHandlers.appendElement(handler, false);
+
+ // Since the user has agreed to add a new handler, chances are good
+ // that the next time they see a handler of this type, they're going
+ // to want to use it. Reset the handlerInfo to ask before the next
+ // use.
+ handlerInfo.alwaysAskBeforeHandling = true;
+
+ let hs = Cc["@mozilla.org/uriloader/handler-service;1"].
+ getService(Ci.nsIHandlerService);
+ hs.store(handlerInfo);
+ }
+ };
+ let notificationBox = browser.getTabBrowser().getNotificationBox(browser);
+ notificationBox.appendNotification(message,
+ notificationValue,
+ notificationIcon,
+ notificationBox.PRIORITY_INFO_LOW,
+ [addButton]);
+ },
+
+ /**
+ * See nsIWebContentHandlerRegistrar
+ * If a DOM window is provided, then the request came from content, so we
+ * prompt the user to confirm the registration.
+ */
+ registerContentHandler(aContentType, aURIString, aTitle, aWindowOrBrowser) {
+ LOG("registerContentHandler(" + aContentType + "," + aURIString + "," + aTitle + ")");
+
+ // Make sure to do our URL checks up front, before our content type check,
+ // just like the WebContentConverterRegistrarContent does.
+ let haveWindow = aWindowOrBrowser &&
+ (aWindowOrBrowser instanceof Ci.nsIDOMWindow);
+ let uri;
+ if (haveWindow) {
+ uri = Utils.checkAndGetURI(aURIString, aWindowOrBrowser);
+ } else if (aWindowOrBrowser) {
+ // uri was vetted in the content process.
+ uri = Utils.makeURI(aURIString, null);
+ }
+
+ // We only support feed types at present.
+ let contentType = Utils.resolveContentType(aContentType);
+ // XXX We should be throwing a Utils.getSecurityError() here in at least
+ // some cases. See bug 1266492.
+ if (contentType != TYPE_MAYBE_FEED) {
+ return;
+ }
+
+ if (aWindowOrBrowser) {
+ let notificationBox;
+ if (haveWindow) {
+ let browserWindow = this._getBrowserWindowForContentWindow(aWindowOrBrowser);
+ let browserElement = this._getBrowserForContentWindow(browserWindow, aWindowOrBrowser);
+ notificationBox = browserElement.getTabBrowser().getNotificationBox(browserElement);
+ } else {
+ notificationBox = aWindowOrBrowser.getTabBrowser()
+ .getNotificationBox(aWindowOrBrowser);
+ }
+
+ this._appendFeedReaderNotification(uri, aTitle, notificationBox);
+ } else {
+ this._registerContentHandler(contentType, aURIString, aTitle);
+ }
+ },
+
+ /**
+ * Returns the browser chrome window in which the content window is in
+ */
+ _getBrowserWindowForContentWindow(aContentWindow) {
+ return aContentWindow.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebNavigation)
+ .QueryInterface(Ci.nsIDocShellTreeItem)
+ .rootTreeItem
+ .QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIDOMWindow)
+ .wrappedJSObject;
+ },
+
+ /**
+ * Returns the <xul:browser> element associated with the given content
+ * window.
+ *
+ * @param aBrowserWindow
+ * The browser window in which the content window is in.
+ * @param aContentWindow
+ * The content window. It's possible to pass a child content window
+ * (i.e. the content window of a frame/iframe).
+ */
+ _getBrowserForContentWindow(aBrowserWindow, aContentWindow) {
+ // This depends on pseudo APIs of browser.js and tabbrowser.xml
+ aContentWindow = aContentWindow.top;
+ return aBrowserWindow.gBrowser.browsers.find((browser) =>
+ browser.contentWindow == aContentWindow);
+ },
+
+ /**
+ * Appends a notifcation for the given feed reader details.
+ *
+ * The notification could be either a pseudo-dialog which lets
+ * the user to add the feed reader:
+ * [ [icon] Add %feed-reader-name% (%feed-reader-host%) as a Feed Reader? (Add) [x] ]
+ *
+ * or a simple message for the case where the feed reader is already registered:
+ * [ [icon] %feed-reader-name% is already registered as a Feed Reader [x] ]
+ *
+ * A new notification isn't appended if the given notificationbox has a
+ * notification for the same feed reader.
+ *
+ * @param aURI
+ * The url of the feed reader as a nsIURI object
+ * @param aName
+ * The feed reader name as it was passed to registerContentHandler
+ * @param aNotificationBox
+ * The notification box to which a notification might be appended
+ * @return true if a notification has been appended, false otherwise.
+ */
+ _appendFeedReaderNotification(aURI, aName, aNotificationBox) {
+ let uriSpec = aURI.spec;
+ let notificationValue = "feed reader notification: " + uriSpec;
+ let notificationIcon = aURI.prePath + "/favicon.ico";
+
+ // Don't append a new notification if the notificationbox
+ // has a notification for the given feed reader already
+ if (aNotificationBox.getNotificationWithValue(notificationValue))
+ return false;
+
+ let buttons;
+ let message;
+ if (this.getWebContentHandlerByURI(TYPE_MAYBE_FEED, uriSpec))
+ message = this._getFormattedString("handlerRegistered", [aName]);
+ else {
+ message = this._getFormattedString("addHandler", [aName, aURI.host]);
+ let self = this;
+ let addButton = {
+ _outer: self,
+ label: self._getString("addHandlerAddButton"),
+ accessKey: self._getString("addHandlerAddButtonAccesskey"),
+ feedReaderInfo: { uri: uriSpec, name: aName },
+
+ /* static */
+ callback(aNotification, aButtonInfo) {
+ let uri = aButtonInfo.feedReaderInfo.uri;
+ let name = aButtonInfo.feedReaderInfo.name;
+ let outer = aButtonInfo._outer;
+
+ // The reader could have been added from another window mean while
+ if (!outer.getWebContentHandlerByURI(TYPE_MAYBE_FEED, uri))
+ outer._registerContentHandler(TYPE_MAYBE_FEED, uri, name);
+
+ // avoid reference cycles
+ aButtonInfo._outer = null;
+
+ return false;
+ }
+ };
+ buttons = [addButton];
+ }
+
+ aNotificationBox.appendNotification(message,
+ notificationValue,
+ notificationIcon,
+ aNotificationBox.PRIORITY_INFO_LOW,
+ buttons);
+ return true;
+ },
+
+ /**
+ * Save Web Content Handler metadata to persistent preferences.
+ * @param contentType
+ * The content Type being handled
+ * @param uri
+ * The uri of the web service
+ * @param title
+ * The human readable name of the web service
+ *
+ * This data is stored under:
+ *
+ * browser.contentHandlers.type0 = content/type
+ * browser.contentHandlers.uri0 = http://www.foo.com/q=%s
+ * browser.contentHandlers.title0 = Foo 2.0alphr
+ */
+ _saveContentHandlerToPrefs(contentType, uri, title) {
+ let ps = Services.prefs;
+ let i = 0;
+ let typeBranch = null;
+ while (true) {
+ typeBranch =
+ ps.getBranch(PREF_CONTENTHANDLERS_BRANCH + i + ".");
+ try {
+ typeBranch.getCharPref("type");
+ ++i;
+ } catch (e) {
+ // No more handlers
+ break;
+ }
+ }
+ if (typeBranch) {
+ typeBranch.setCharPref("type", contentType);
+ let pls =
+ Cc["@mozilla.org/pref-localizedstring;1"].
+ createInstance(Ci.nsIPrefLocalizedString);
+ pls.data = uri;
+ typeBranch.setComplexValue("uri", Ci.nsIPrefLocalizedString, pls);
+ pls.data = title;
+ typeBranch.setComplexValue("title", Ci.nsIPrefLocalizedString, pls);
+
+ ps.savePrefFile(null);
+ }
+ },
+
+ /**
+ * Determines if there is a type with a particular uri registered for the
+ * specified content type already.
+ * @param contentType
+ * The content type that the uri handles
+ * @param uri
+ * The uri of the content type
+ */
+ _typeIsRegistered(contentType, uri) {
+ if (!(contentType in this._contentTypes))
+ return false;
+
+ return this._contentTypes[contentType]
+ .some(t => t.uri == uri);
+ },
+
+ /**
+ * Gets a stream converter contract id for the specified content type.
+ * @param contentType
+ * The source content type for the conversion.
+ * @returns A contract id to construct a converter to convert between the
+ * contentType and *\/*.
+ */
+ _getConverterContractID(contentType) {
+ const template = "@mozilla.org/streamconv;1?from=%s&to=*/*";
+ return template.replace(/%s/, contentType);
+ },
+
+ /**
+ * Register a web service handler for a content type.
+ *
+ * @param contentType
+ * the content type being handled
+ * @param uri
+ * the URI of the web service
+ * @param title
+ * the human readable name of the web service
+ */
+ _registerContentHandler(contentType, uri, title) {
+ this._updateContentTypeHandlerMap(contentType, uri, title);
+ this._saveContentHandlerToPrefs(contentType, uri, title);
+
+ if (contentType == TYPE_MAYBE_FEED) {
+ // Make the new handler the last-selected reader in the preview page
+ // and make sure the preview page is shown the next time a feed is visited
+ let pb = Services.prefs.getBranch(null);
+ pb.setCharPref(PREF_SELECTED_READER, "web");
+
+ let supportsString =
+ Cc["@mozilla.org/supports-string;1"].
+ createInstance(Ci.nsISupportsString);
+ supportsString.data = uri;
+ pb.setComplexValue(PREF_SELECTED_WEB, Ci.nsISupportsString,
+ supportsString);
+ pb.setCharPref(PREF_SELECTED_ACTION, "ask");
+ this._setAutoHandler(TYPE_MAYBE_FEED, null);
+ }
+ },
+
+ /**
+ * Update the content type -> handler map. This mapping is not persisted, use
+ * registerContentHandler or _saveContentHandlerToPrefs for that purpose.
+ * @param contentType
+ * The content Type being handled
+ * @param uri
+ * The uri of the web service
+ * @param title
+ * The human readable name of the web service
+ */
+ _updateContentTypeHandlerMap(contentType, uri, title) {
+ if (!(contentType in this._contentTypes))
+ this._contentTypes[contentType] = [];
+
+ // Avoid adding duplicates
+ if (this._typeIsRegistered(contentType, uri))
+ return;
+
+ this._contentTypes[contentType].push(new ServiceInfo(contentType, uri, title));
+
+ if (!(contentType in this._blockedTypes)) {
+ let converterContractID = this._getConverterContractID(contentType);
+ let cr = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+ cr.registerFactory(WCC_CLASSID, WCC_CLASSNAME, converterContractID,
+ WebContentConverterFactory);
+ }
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ getContentHandlers(contentType, countRef) {
+ if (countRef) {
+ countRef.value = 0;
+ }
+ if (!(contentType in this._contentTypes))
+ return [];
+
+ let handlers = this._contentTypes[contentType];
+ if (countRef) {
+ countRef.value = handlers.length;
+ }
+ return handlers;
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ resetHandlersForType(contentType) {
+ // currently unused within the tree, so only useful for extensions; previous
+ // impl. was buggy (and even infinite-looped!), so I argue that this is a
+ // definite improvement
+ throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+ },
+
+ /**
+ * Registers a handler from the settings on a preferences branch.
+ *
+ * Since we support up to six predefined readers, we need to handle gaps
+ * better, since the first branch with user-added values will be .6
+ *
+ * How we deal with that is to check to see if there's no prefs in the
+ * branch and stop cycling once that's true. This doesn't fix the case
+ * where a user manually removes a reader, but that's not supported yet!
+ *
+ * @param branch
+ * an nsIPrefBranch containing "type", "uri", and "title" preferences
+ * corresponding to the content handler to be registered
+ */
+ _registerContentHandlerHavingBranch(branch) {
+ let vals = branch.getChildList("");
+ if (vals.length == 0)
+ return;
+
+ let type = branch.getCharPref("type");
+ let uri = branch.getComplexValue("uri", Ci.nsIPrefLocalizedString).data;
+ let title = branch.getComplexValue("title",
+ Ci.nsIPrefLocalizedString).data;
+ this._updateContentTypeHandlerMap(type, uri, title);
+ },
+
+ /**
+ * Load the auto handler, content handler and protocol tables from
+ * preferences.
+ */
+ _init() {
+ let ps = Services.prefs;
+
+ let children = ps.getBranch(PREF_CONTENTHANDLERS_BRANCH)
+ .getChildList("");
+
+ // first get the numbers of the providers by getting all ###.uri prefs
+ let nums = children.map((child) => {
+ let match = /^(\d+)\.uri$/.exec(child);
+ return match ? match[1] : "";
+ }).filter(child => !!child)
+ .sort();
+
+
+ // now register them
+ for (let num of nums) {
+ let branch = ps.getBranch(PREF_CONTENTHANDLERS_BRANCH + num + ".");
+ try {
+ this._registerContentHandlerHavingBranch(branch);
+ } catch (ex) {
+ // do nothing, the next branch might have values
+ }
+ }
+
+ // We need to do this _after_ registering all of the available handlers,
+ // so that getWebContentHandlerByURI can return successfully.
+ let autoBranch;
+ try {
+ autoBranch = ps.getBranch(PREF_CONTENTHANDLERS_AUTO);
+ } catch (e) {
+ // No auto branch yet, that's fine
+ // LOG("WCCR.init: There is no auto branch, benign");
+ }
+
+ if (autoBranch) {
+ for (let type of autoBranch.getChildList("")) {
+ let uri = autoBranch.getCharPref(type);
+ if (uri) {
+ let handler = this.getWebContentHandlerByURI(type, uri);
+ if (handler) {
+ this._setAutoHandler(type, handler);
+ }
+ }
+ }
+ }
+ },
+
+ /**
+ * See nsIObserver
+ */
+ observe(subject, topic, data) {
+ let os = Services.obs;
+ switch (topic) {
+ case "app-startup":
+ os.addObserver(this, "browser-ui-startup-complete", false);
+ break;
+ case "browser-ui-startup-complete":
+ os.removeObserver(this, "browser-ui-startup-complete");
+ this._init();
+ break;
+ }
+ },
+
+ /**
+ * See nsIFactory
+ */
+ createInstance(outer, iid) {
+ if (outer != null)
+ throw Cr.NS_ERROR_NO_AGGREGATION;
+ return this.QueryInterface(iid);
+ },
+
+ classID: WCCR_CLASSID,
+
+ /**
+ * See nsISupports
+ */
+ QueryInterface: XPCOMUtils.generateQI(
+ [Ci.nsIWebContentConverterService,
+ Ci.nsIWebContentHandlerRegistrar,
+ Ci.nsIObserver,
+ Ci.nsIFactory]),
+
+ _xpcom_categories: [{
+ category: "app-startup",
+ service: true
+ }]
+};
+
+function WebContentConverterRegistrarContent() {
+ this._contentTypes = {};
+}
+
+WebContentConverterRegistrarContent.prototype = {
+
+ /**
+ * Load the auto handler, content handler and protocol tables from
+ * preferences.
+ */
+ _init() {
+ let ps = Services.prefs;
+
+ let children = ps.getBranch(PREF_CONTENTHANDLERS_BRANCH)
+ .getChildList("");
+
+ // first get the numbers of the providers by getting all ###.uri prefs
+ let nums = children.map((child) => {
+ let match = /^(\d+)\.uri$/.exec(child);
+ return match ? match[1] : "";
+ }).filter(child => !!child)
+ .sort();
+
+ // now register them
+ for (let num of nums) {
+ let branch = ps.getBranch(PREF_CONTENTHANDLERS_BRANCH + num + ".");
+ try {
+ this._registerContentHandlerHavingBranch(branch);
+ } catch (ex) {
+ // do nothing, the next branch might have values
+ }
+ }
+ },
+
+ _typeIsRegistered(contentType, uri) {
+ return this._contentTypes[contentType]
+ .some(e => e.uri == uri);
+ },
+
+ /**
+ * Since we support up to six predefined readers, we need to handle gaps
+ * better, since the first branch with user-added values will be .6
+ *
+ * How we deal with that is to check to see if there's no prefs in the
+ * branch and stop cycling once that's true. This doesn't fix the case
+ * where a user manually removes a reader, but that's not supported yet!
+ *
+ * @param branch
+ * The pref branch to register the content handler under
+ *
+ */
+ _registerContentHandlerHavingBranch(branch) {
+ let vals = branch.getChildList("");
+ if (vals.length == 0)
+ return;
+
+ let type = branch.getCharPref("type");
+ let uri = branch.getComplexValue("uri", Ci.nsIPrefLocalizedString).data;
+ let title = branch.getComplexValue("title",
+ Ci.nsIPrefLocalizedString).data;
+ this._updateContentTypeHandlerMap(type, uri, title);
+ },
+
+ _updateContentTypeHandlerMap(contentType, uri, title) {
+ if (!(contentType in this._contentTypes))
+ this._contentTypes[contentType] = [];
+
+ // Avoid adding duplicates
+ if (this._typeIsRegistered(contentType, uri))
+ return;
+
+ this._contentTypes[contentType].push(new ServiceInfo(contentType, uri, title));
+
+ if (!(contentType in this._blockedTypes)) {
+ let converterContractID = this._getConverterContractID(contentType);
+ let cr = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+ cr.registerFactory(WCC_CLASSID, WCC_CLASSNAME, converterContractID,
+ WebContentConverterFactory);
+ }
+ },
+
+ /**
+ * See nsIWebContentConverterService
+ */
+ getContentHandlers(contentType, countRef) {
+ this._init();
+ if (countRef) {
+ countRef.value = 0;
+ }
+
+ if (!(contentType in this._contentTypes))
+ return [];
+
+ let handlers = this._contentTypes[contentType];
+ if (countRef) {
+ countRef.value = handlers.length;
+ }
+ return handlers;
+ },
+
+ setAutoHandler(contentType, handler) {
+ Services.cpmm.sendAsyncMessage("WCCR:setAutoHandler",
+ { contentType, handler });
+ },
+
+ getWebContentHandlerByURI(contentType, uri) {
+ return this.getContentHandlers(contentType)
+ .find(e => e.uri == uri) || null;
+ },
+
+ /**
+ * See nsIWebContentHandlerRegistrar
+ */
+ registerContentHandler(aContentType, aURIString, aTitle, aBrowserOrWindow) {
+ // aBrowserOrWindow must be a window.
+ let messageManager = aBrowserOrWindow.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebNavigation)
+ .QueryInterface(Ci.nsIDocShell)
+ .QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsITabChild)
+ .messageManager;
+
+ let uri = Utils.checkAndGetURI(aURIString, aBrowserOrWindow);
+ // XXX We should be throwing a Utils.getSecurityError() here in at least
+ // some cases. See bug 1266492.
+ if (Utils.resolveContentType(aContentType) != TYPE_MAYBE_FEED) {
+ return;
+ }
+
+ messageManager.sendAsyncMessage("WCCR:registerContentHandler",
+ { contentType: aContentType,
+ uri: uri.spec,
+ title: aTitle });
+ },
+
+ registerProtocolHandler(aProtocol, aURIString, aTitle, aBrowserOrWindow) {
+ // aBrowserOrWindow must be a window.
+ let messageManager = aBrowserOrWindow.QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsIWebNavigation)
+ .QueryInterface(Ci.nsIDocShell)
+ .QueryInterface(Ci.nsIInterfaceRequestor)
+ .getInterface(Ci.nsITabChild)
+ .messageManager;
+
+ let uri = Utils.checkAndGetURI(aURIString, aBrowserOrWindow);
+ Utils.checkProtocolHandlerAllowed(aProtocol, aURIString, aBrowserOrWindow);
+
+ messageManager.sendAsyncMessage("WCCR:registerProtocolHandler",
+ { protocol: aProtocol,
+ uri: uri.spec,
+ title: aTitle });
+ },
+
+ /**
+ * See nsIFactory
+ */
+ createInstance(outer, iid) {
+ if (outer != null)
+ throw Cr.NS_ERROR_NO_AGGREGATION;
+ return this.QueryInterface(iid);
+ },
+
+ classID: WCCR_CLASSID,
+
+ /**
+ * See nsISupports
+ */
+ QueryInterface: XPCOMUtils.generateQI(
+ [Ci.nsIWebContentHandlerRegistrar,
+ Ci.nsIWebContentConverterService,
+ Ci.nsIFactory])
+};
+
+this.NSGetFactory =
+ (Services.appinfo.processType === Services.appinfo.PROCESS_TYPE_CONTENT) ?
+ XPCOMUtils.generateNSGetFactory([WebContentConverterRegistrarContent]) :
+ XPCOMUtils.generateNSGetFactory([WebContentConverterRegistrar]);
diff --git a/application/basilisk/components/feeds/content/subscribe.js b/application/basilisk/components/feeds/content/subscribe.js
new file mode 100644
index 000000000..05a564bf1
--- /dev/null
+++ b/application/basilisk/components/feeds/content/subscribe.js
@@ -0,0 +1,25 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* global BrowserFeedWriter */
+
+var SubscribeHandler = {
+ /**
+ * The nsIFeedWriter object that produces the UI
+ */
+ _feedWriter: null,
+
+ init: function SH_init() {
+ this._feedWriter = new BrowserFeedWriter();
+ },
+
+ writeContent: function SH_writeContent() {
+ this._feedWriter.writeContent();
+ },
+
+ uninit: function SH_uninit() {
+ this._feedWriter.close();
+ }
+};
diff --git a/application/basilisk/components/feeds/content/subscribe.xhtml b/application/basilisk/components/feeds/content/subscribe.xhtml
new file mode 100644
index 000000000..a55c80053
--- /dev/null
+++ b/application/basilisk/components/feeds/content/subscribe.xhtml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+ - License, v. 2.0. If a copy of the MPL was not distributed with this
+ - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+
+<!DOCTYPE html [
+ <!ENTITY % htmlDTD
+ PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+ "DTD/xhtml1-strict.dtd">
+ %htmlDTD;
+ <!ENTITY % globalDTD
+ SYSTEM "chrome://global/locale/global.dtd">
+ %globalDTD;
+ <!ENTITY % feedDTD
+ SYSTEM "chrome://browser/locale/feeds/subscribe.dtd">
+ %feedDTD;
+]>
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+
+<html id="feedHandler"
+ xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <title>&feedPage.title;</title>
+ <link rel="stylesheet"
+ href="chrome://browser/skin/feeds/subscribe.css"
+ type="text/css"
+ media="all"/>
+ <script type="application/javascript"
+ src="chrome://browser/content/feeds/subscribe.js"/>
+ </head>
+ <body onload="SubscribeHandler.writeContent();" onunload="SubscribeHandler.uninit();">
+ <div id="feedHeaderContainer">
+ <div id="feedHeader" dir="&locale.dir;">
+ <div id="feedIntroText">
+ <p id="feedSubscriptionInfo1" />
+ <p id="feedSubscriptionInfo2" />
+ </div>
+ <div id="feedSubscribeLine">
+ <label id="subscribeUsingDescription">
+ <select id="handlersMenuList">
+ <option id="liveBookmarksMenuItem" selected="true">&feedLiveBookmarks;</option>
+ <option disabled="true">&#x2501;&#x2501;&#x2501;&#x2501;&#x2501;&#x2501;&#x2501;</option>
+ </select>
+ </label>
+ <label id="checkboxText">
+ <input type="checkbox" id="alwaysUse" class="alwaysUse" checked="false"/>
+ </label>
+ <button id="subscribeButton">&feedSubscribeNow;</button>
+ </div>
+ </div>
+ <div id="feedHeaderContainerSpacer"/>
+ </div>
+
+ <script type="application/javascript">
+ /* import-globals-from subscribe.js */
+ SubscribeHandler.init();
+ </script>
+
+ <div id="feedBody">
+ <div id="feedTitle">
+ <a id="feedTitleLink">
+ <img id="feedTitleImage"/>
+ </a>
+ <div id="feedTitleContainer">
+ <h1 id="feedTitleText"/>
+ <h2 id="feedSubtitleText"/>
+ </div>
+ </div>
+ <div id="feedContent"/>
+ </div>
+ </body>
+</html>
diff --git a/application/basilisk/components/feeds/jar.mn b/application/basilisk/components/feeds/jar.mn
new file mode 100644
index 000000000..8570112c1
--- /dev/null
+++ b/application/basilisk/components/feeds/jar.mn
@@ -0,0 +1,7 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+browser.jar:
+ content/browser/feeds/subscribe.xhtml (content/subscribe.xhtml)
+ content/browser/feeds/subscribe.js (content/subscribe.js)
diff --git a/application/basilisk/components/feeds/moz.build b/application/basilisk/components/feeds/moz.build
new file mode 100644
index 000000000..b8755fcc9
--- /dev/null
+++ b/application/basilisk/components/feeds/moz.build
@@ -0,0 +1,34 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+JAR_MANIFESTS += ['jar.mn']
+
+XPIDL_SOURCES += [
+ 'nsIFeedResultService.idl',
+ 'nsIWebContentConverterRegistrar.idl',
+]
+
+XPIDL_MODULE = 'browser-feeds'
+
+SOURCES += [
+ 'nsFeedSniffer.cpp',
+]
+
+EXTRA_COMPONENTS += [
+ 'BrowserFeeds.manifest',
+ 'FeedConverter.js',
+ 'FeedWriter.js',
+ 'WebContentConverter.js',
+]
+
+FINAL_LIBRARY = 'browsercomps'
+
+for var in ('MOZ_APP_NAME', 'MOZ_MACBUNDLE_NAME'):
+ DEFINES[var] = CONFIG[var]
+
+LOCAL_INCLUDES += [
+ '../build',
+]
diff --git a/application/basilisk/components/feeds/nsFeedSniffer.cpp b/application/basilisk/components/feeds/nsFeedSniffer.cpp
new file mode 100644
index 000000000..f2d0da776
--- /dev/null
+++ b/application/basilisk/components/feeds/nsFeedSniffer.cpp
@@ -0,0 +1,370 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsFeedSniffer.h"
+
+
+#include "nsNetCID.h"
+#include "nsXPCOM.h"
+#include "nsCOMPtr.h"
+#include "nsStringStream.h"
+
+#include "nsBrowserCompsCID.h"
+
+#include "nsICategoryManager.h"
+#include "nsIServiceManager.h"
+#include "nsComponentManagerUtils.h"
+#include "nsServiceManagerUtils.h"
+
+#include "nsIStreamConverterService.h"
+#include "nsIStreamConverter.h"
+
+#include "nsIStreamListener.h"
+
+#include "nsIHttpChannel.h"
+#include "nsIMIMEHeaderParam.h"
+
+#include "nsMimeTypes.h"
+#include "nsIURI.h"
+#include <algorithm>
+
+#define TYPE_ATOM "application/atom+xml"
+#define TYPE_RSS "application/rss+xml"
+#define TYPE_MAYBE_FEED "application/vnd.mozilla.maybe.feed"
+
+#define NS_RDF "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+#define NS_RSS "http://purl.org/rss/1.0/"
+
+#define MAX_BYTES 512u
+
+NS_IMPL_ISUPPORTS(nsFeedSniffer,
+ nsIContentSniffer,
+ nsIStreamListener,
+ nsIRequestObserver)
+
+nsresult
+nsFeedSniffer::ConvertEncodedData(nsIRequest* request,
+ const uint8_t* data,
+ uint32_t length)
+{
+ nsresult rv = NS_OK;
+
+ mDecodedData = "";
+ nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(request));
+ if (!httpChannel)
+ return NS_ERROR_NO_INTERFACE;
+
+ nsAutoCString contentEncoding;
+ httpChannel->GetResponseHeader(NS_LITERAL_CSTRING("Content-Encoding"),
+ contentEncoding);
+ if (!contentEncoding.IsEmpty()) {
+ nsCOMPtr<nsIStreamConverterService> converterService(do_GetService(NS_STREAMCONVERTERSERVICE_CONTRACTID));
+ if (converterService) {
+ ToLowerCase(contentEncoding);
+
+ nsCOMPtr<nsIStreamListener> converter;
+ rv = converterService->AsyncConvertData(contentEncoding.get(),
+ "uncompressed", this, nullptr,
+ getter_AddRefs(converter));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ converter->OnStartRequest(request, nullptr);
+
+ nsCOMPtr<nsIStringInputStream> rawStream =
+ do_CreateInstance(NS_STRINGINPUTSTREAM_CONTRACTID);
+ if (!rawStream)
+ return NS_ERROR_FAILURE;
+
+ rv = rawStream->SetData((const char*)data, length);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = converter->OnDataAvailable(request, nullptr, rawStream, 0, length);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ converter->OnStopRequest(request, nullptr, NS_OK);
+ }
+ }
+ return rv;
+}
+
+template<int N>
+static bool
+StringBeginsWithLowercaseLiteral(nsAString& aString,
+ const char (&aSubstring)[N])
+{
+ return StringHead(aString, N).LowerCaseEqualsLiteral(aSubstring);
+}
+
+bool
+HasAttachmentDisposition(nsIHttpChannel* httpChannel)
+{
+ if (!httpChannel)
+ return false;
+
+ uint32_t disp;
+ nsresult rv = httpChannel->GetContentDisposition(&disp);
+
+ if (NS_SUCCEEDED(rv) && disp == nsIChannel::DISPOSITION_ATTACHMENT)
+ return true;
+
+ return false;
+}
+
+/**
+ * @return the first occurrence of a character within a string buffer,
+ * or nullptr if not found
+ */
+static const char*
+FindChar(char c, const char *begin, const char *end)
+{
+ for (; begin < end; ++begin) {
+ if (*begin == c)
+ return begin;
+ }
+ return nullptr;
+}
+
+/**
+ *
+ * Determine if a substring is the "documentElement" in the document.
+ *
+ * All of our sniffed substrings: <rss, <feed, <rdf:RDF must be the "document"
+ * element within the XML DOM, i.e. the root container element. Otherwise,
+ * it's possible that someone embedded one of these tags inside a document of
+ * another type, e.g. a HTML document, and we don't want to show the preview
+ * page if the document isn't actually a feed.
+ *
+ * @param start
+ * The beginning of the data being sniffed
+ * @param end
+ * The end of the data being sniffed, right before the substring that
+ * was found.
+ * @returns true if the found substring is the documentElement, false
+ * otherwise.
+ */
+static bool
+IsDocumentElement(const char *start, const char* end)
+{
+ // For every tag in the buffer, check to see if it's a PI, Doctype or
+ // comment, our desired substring or something invalid.
+ while ( (start = FindChar('<', start, end)) ) {
+ ++start;
+ if (start >= end)
+ return false;
+
+ // Check to see if the character following the '<' is either '?' or '!'
+ // (processing instruction or doctype or comment)... these are valid nodes
+ // to have in the prologue.
+ if (*start != '?' && *start != '!')
+ return false;
+
+ // Now advance the iterator until the '>' (We do this because we don't want
+ // to sniff indicator substrings that are embedded within other nodes, e.g.
+ // comments: <!-- <rdf:RDF .. > -->
+ start = FindChar('>', start, end);
+ if (!start)
+ return false;
+
+ ++start;
+ }
+ return true;
+}
+
+/**
+ * Determines whether or not a string exists as the root element in an XML data
+ * string buffer.
+ * @param dataString
+ * The data being sniffed
+ * @param substring
+ * The substring being tested for existence and root-ness.
+ * @returns true if the substring exists and is the documentElement, false
+ * otherwise.
+ */
+static bool
+ContainsTopLevelSubstring(nsACString& dataString, const char *substring)
+{
+ nsACString::const_iterator start, end;
+ dataString.BeginReading(start);
+ dataString.EndReading(end);
+
+ if (!FindInReadable(nsCString(substring), start, end)){
+ return false;
+ }
+
+ auto offset = start.get() - dataString.Data();
+
+ const char *begin = dataString.BeginReading();
+
+ // Only do the validation when we find the substring.
+ return IsDocumentElement(begin, begin + offset);
+}
+
+NS_IMETHODIMP
+nsFeedSniffer::GetMIMETypeFromContent(nsIRequest* request,
+ const uint8_t* data,
+ uint32_t length,
+ nsACString& sniffedType)
+{
+ nsCOMPtr<nsIHttpChannel> channel(do_QueryInterface(request));
+ if (!channel)
+ return NS_ERROR_NO_INTERFACE;
+
+ // Check that this is a GET request, since you can't subscribe to a POST...
+ nsAutoCString method;
+ channel->GetRequestMethod(method);
+ if (!method.EqualsLiteral("GET")) {
+ sniffedType.Truncate();
+ return NS_OK;
+ }
+
+ // We need to find out if this is a load of a view-source document. In this
+ // case we do not want to override the content type, since the source display
+ // does not need to be converted from feed format to XUL. More importantly,
+ // we don't want to change the content type from something
+ // nsContentDLF::CreateInstance knows about (e.g. application/xml, text/html
+ // etc) to something that only the application fe knows about (maybe.feed)
+ // thus deactivating syntax highlighting.
+ nsCOMPtr<nsIURI> originalURI;
+ channel->GetOriginalURI(getter_AddRefs(originalURI));
+
+ nsAutoCString scheme;
+ originalURI->GetScheme(scheme);
+ if (scheme.EqualsLiteral("view-source")) {
+ sniffedType.Truncate();
+ return NS_OK;
+ }
+
+ // Check the Content-Type to see if it is set correctly. If it is set to
+ // something specific that we think is a reliable indication of a feed, don't
+ // bother sniffing since we assume the site maintainer knows what they're
+ // doing.
+ nsAutoCString contentType;
+ channel->GetContentType(contentType);
+ bool noSniff = contentType.EqualsLiteral(TYPE_RSS) ||
+ contentType.EqualsLiteral(TYPE_ATOM);
+
+ // Check to see if this was a feed request from the location bar or from
+ // the feed: protocol. This is also a reliable indication.
+ // The value of the header doesn't matter.
+ if (!noSniff) {
+ nsAutoCString sniffHeader;
+ nsresult foundHeader =
+ channel->GetRequestHeader(NS_LITERAL_CSTRING("X-Moz-Is-Feed"),
+ sniffHeader);
+ noSniff = NS_SUCCEEDED(foundHeader);
+ }
+
+ if (noSniff) {
+ // check for an attachment after we have a likely feed.
+ if(HasAttachmentDisposition(channel)) {
+ sniffedType.Truncate();
+ return NS_OK;
+ }
+
+ // set the feed header as a response header, since we have good metadata
+ // telling us that the feed is supposed to be RSS or Atom
+ channel->SetResponseHeader(NS_LITERAL_CSTRING("X-Moz-Is-Feed"),
+ NS_LITERAL_CSTRING("1"), false);
+ sniffedType.AssignLiteral(TYPE_MAYBE_FEED);
+ return NS_OK;
+ }
+
+ // Don't sniff arbitrary types. Limit sniffing to situations that
+ // we think can reasonably arise.
+ if (!contentType.EqualsLiteral(TEXT_HTML) &&
+ !contentType.EqualsLiteral(APPLICATION_OCTET_STREAM) &&
+ // Same criterion as XMLHttpRequest. Should we be checking for "+xml"
+ // and check for text/xml and application/xml by hand instead?
+ contentType.Find("xml") == -1) {
+ sniffedType.Truncate();
+ return NS_OK;
+ }
+
+ // Now we need to potentially decompress data served with
+ // Content-Encoding: gzip
+ nsresult rv = ConvertEncodedData(request, data, length);
+ if (NS_FAILED(rv))
+ return rv;
+
+ // We cap the number of bytes to scan at MAX_BYTES to prevent picking up
+ // false positives by accidentally reading document content, e.g. a "how to
+ // make a feed" page.
+ const char* testData;
+ if (mDecodedData.IsEmpty()) {
+ testData = (const char*)data;
+ length = std::min(length, MAX_BYTES);
+ } else {
+ testData = mDecodedData.get();
+ length = std::min(mDecodedData.Length(), MAX_BYTES);
+ }
+
+ // The strategy here is based on that described in:
+ // http://blogs.msdn.com/rssteam/articles/PublishersGuide.aspx
+ // for interoperarbility purposes.
+
+ // Thus begins the actual sniffing.
+ nsDependentCSubstring dataString((const char*)testData, length);
+
+ bool isFeed = false;
+
+ // RSS 0.91/0.92/2.0
+ isFeed = ContainsTopLevelSubstring(dataString, "<rss");
+
+ // Atom 1.0
+ if (!isFeed)
+ isFeed = ContainsTopLevelSubstring(dataString, "<feed");
+
+ // RSS 1.0
+ if (!isFeed) {
+ bool foundNS_RDF = FindInReadable(NS_LITERAL_CSTRING(NS_RDF), dataString);
+ bool foundNS_RSS = FindInReadable(NS_LITERAL_CSTRING(NS_RSS), dataString);
+ isFeed = ContainsTopLevelSubstring(dataString, "<rdf:RDF") &&
+ foundNS_RDF && foundNS_RSS;
+ }
+
+ // If we sniffed a feed, coerce our internal type
+ if (isFeed && !HasAttachmentDisposition(channel))
+ sniffedType.AssignLiteral(TYPE_MAYBE_FEED);
+ else
+ sniffedType.Truncate();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFeedSniffer::OnStartRequest(nsIRequest* request, nsISupports* context)
+{
+ return NS_OK;
+}
+
+nsresult
+nsFeedSniffer::AppendSegmentToString(nsIInputStream* inputStream,
+ void* closure,
+ const char* rawSegment,
+ uint32_t toOffset,
+ uint32_t count,
+ uint32_t* writeCount)
+{
+ nsCString* decodedData = static_cast<nsCString*>(closure);
+ decodedData->Append(rawSegment, count);
+ *writeCount = count;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFeedSniffer::OnDataAvailable(nsIRequest* request, nsISupports* context,
+ nsIInputStream* stream, uint64_t offset,
+ uint32_t count)
+{
+ uint32_t read;
+ return stream->ReadSegments(AppendSegmentToString, &mDecodedData, count,
+ &read);
+}
+
+NS_IMETHODIMP
+nsFeedSniffer::OnStopRequest(nsIRequest* request, nsISupports* context,
+ nsresult status)
+{
+ return NS_OK;
+}
diff --git a/application/basilisk/components/feeds/nsFeedSniffer.h b/application/basilisk/components/feeds/nsFeedSniffer.h
new file mode 100644
index 000000000..b7ac002bd
--- /dev/null
+++ b/application/basilisk/components/feeds/nsFeedSniffer.h
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+#include "nsIContentSniffer.h"
+#include "nsIStreamListener.h"
+#include "nsString.h"
+#include "mozilla/Attributes.h"
+
+class nsFeedSniffer final : public nsIContentSniffer,
+ nsIStreamListener
+{
+public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSICONTENTSNIFFER
+ NS_DECL_NSIREQUESTOBSERVER
+ NS_DECL_NSISTREAMLISTENER
+
+ static nsresult AppendSegmentToString(nsIInputStream* inputStream,
+ void* closure,
+ const char* rawSegment,
+ uint32_t toOffset,
+ uint32_t count,
+ uint32_t* writeCount);
+
+protected:
+ ~nsFeedSniffer() {}
+
+ nsresult ConvertEncodedData(nsIRequest* request, const uint8_t* data,
+ uint32_t length);
+
+private:
+ nsCString mDecodedData;
+};
+
diff --git a/application/basilisk/components/feeds/nsIFeedResultService.idl b/application/basilisk/components/feeds/nsIFeedResultService.idl
new file mode 100644
index 000000000..f745fa693
--- /dev/null
+++ b/application/basilisk/components/feeds/nsIFeedResultService.idl
@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+interface nsIURI;
+interface nsIRequest;
+interface nsIFeedResult;
+
+/**
+ * nsIFeedResultService provides a globally-accessible object for retrieving
+ * the results of feed processing.
+ */
+[scriptable, uuid(95309fd2-7b3a-47fb-97f3-5c460d9473cd)]
+interface nsIFeedResultService : nsISupports
+{
+ /**
+ * When set to true, forces the preview page to be displayed, regardless
+ * of the user's preferences.
+ */
+ attribute boolean forcePreviewPage;
+
+ /**
+ * Adds a URI to the user's specified external feed handler, or live
+ * bookmarks.
+ * @param uri
+ * The uri of the feed to add.
+ * @param title
+ * The title of the feed to add.
+ * @param subtitle
+ * The subtitle of the feed to add.
+ * @param feedType
+ * The nsIFeed type of the feed. See nsIFeed.idl
+ * @param feedReader
+ * The type of feed reader we're using (client, bookmarks, default)
+ * If this parameter is null, the type is set to default
+ */
+ void addToClientReader(in AUTF8String uri,
+ in AString title,
+ in AString subtitle,
+ in unsigned long feedType,
+ [optional] in AString feedReader);
+
+ /**
+ * Registers a Feed Result object with a globally accessible service
+ * so that it can be accessed by a singleton method outside the usual
+ * flow of control in document loading.
+ *
+ * @param feedResult
+ * An object implementing nsIFeedResult representing the feed.
+ */
+ void addFeedResult(in nsIFeedResult feedResult);
+
+ /**
+ * Gets a Feed Handler object registered using addFeedResult.
+ *
+ * @param uri
+ * The URI of the feed a handler is being requested for
+ */
+ nsIFeedResult getFeedResult(in nsIURI uri);
+
+ /**
+ * Unregisters a Feed Handler object registered using addFeedResult.
+ * @param uri
+ * The feed URI the handler was registered under. This must be
+ * the same *instance* the feed was registered under.
+ */
+ void removeFeedResult(in nsIURI uri);
+};
diff --git a/application/basilisk/components/feeds/nsIWebContentConverterRegistrar.idl b/application/basilisk/components/feeds/nsIWebContentConverterRegistrar.idl
new file mode 100644
index 000000000..08ce2f4ae
--- /dev/null
+++ b/application/basilisk/components/feeds/nsIWebContentConverterRegistrar.idl
@@ -0,0 +1,117 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIMIMEInfo.idl"
+#include "nsIWebContentHandlerRegistrar.idl"
+
+interface nsIRequest;
+
+[scriptable, uuid(eb361098-5158-4b21-8f98-50b445f1f0b2)]
+interface nsIWebContentHandlerInfo : nsIHandlerApp
+{
+ /**
+ * The content type handled by the handler
+ */
+ readonly attribute AString contentType;
+
+ /**
+ * The uri of the handler, with an embedded %s where the URI of the loaded
+ * document will be encoded.
+ */
+ readonly attribute AString uri;
+
+ /**
+ * Gets the service URL Spec, with the loading document URI encoded in it.
+ * @param uri
+ * The URI of the document being loaded
+ * @returns The URI of the service with the loading document URI encoded in
+ * it.
+ */
+ AString getHandlerURI(in AString uri);
+};
+
+[scriptable, uuid(de7cc06e-e778-45cb-b7db-7a114e1e75b1)]
+interface nsIWebContentConverterService : nsIWebContentHandlerRegistrar
+{
+ /**
+ * Specifies the handler to be used to automatically handle all links of a
+ * certain content type from now on.
+ * @param contentType
+ * The content type to automatically load with the specified handler
+ * @param handler
+ * A web service handler. If this is null, no automatic action is
+ * performed and the user must choose.
+ * @throws NS_ERROR_NOT_AVAILABLE if the service refered to by |handler| is
+ * not already registered.
+ */
+ void setAutoHandler(in AString contentType, in nsIWebContentHandlerInfo handler);
+
+ /**
+ * Gets the auto handler specified for a particular content type
+ * @param contentType
+ * The content type to look up an auto handler for.
+ * @returns The web service handler that will automatically handle all
+ * documents of the specified type. null if there is no automatic
+ * handler. (Handlers may be registered, just none of them specified
+ * as "automatic").
+ */
+ nsIWebContentHandlerInfo getAutoHandler(in AString contentType);
+
+ /**
+ * Gets a web handler for the specified service URI
+ * @param contentType
+ * The content type of the service being located
+ * @param uri
+ * The service URI of the handler to locate.
+ * @returns A web service handler that uses the specified uri.
+ */
+ nsIWebContentHandlerInfo getWebContentHandlerByURI(in AString contentType,
+ in AString uri);
+
+ /**
+ * Loads the preferred handler when content of a registered type is about
+ * to be loaded.
+ * @param request
+ * The nsIRequest for the load of the content
+ */
+ void loadPreferredHandler(in nsIRequest request);
+
+ /**
+ * Removes a registered protocol handler
+ * @param protocol
+ * The protocol scheme to remove a service handler for
+ * @param uri
+ * The uri of the service handler to remove
+ */
+ void removeProtocolHandler(in AString protocol, in AString uri);
+
+ /**
+ * Removes a registered content handler
+ * @param contentType
+ * The content type to remove a service handler for
+ * @param uri
+ * The uri of the service handler to remove
+ */
+ void removeContentHandler(in AString contentType, in AString uri);
+
+ /**
+ * Gets the list of content handlers for a particular type.
+ * @param contentType
+ * The content type to get handlers for
+ * @returns An array of nsIWebContentHandlerInfo objects
+ */
+ void getContentHandlers(in AString contentType,
+ [optional] out unsigned long count,
+ [retval,array,size_is(count)] out nsIWebContentHandlerInfo handlers);
+
+ /**
+ * Resets the list of available content handlers to the default set from
+ * the distribution.
+ * @param contentType
+ * The content type to reset handlers for
+ */
+ void resetHandlersForType(in AString contentType);
+};
+