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| -rw-r--r-- | toolkit/components/places/BookmarkHTMLUtils.sys.mjs | 1149 |
1 files changed, 1149 insertions, 0 deletions
diff --git a/toolkit/components/places/BookmarkHTMLUtils.sys.mjs b/toolkit/components/places/BookmarkHTMLUtils.sys.mjs new file mode 100644 index 0000000000..ec6acb5e10 --- /dev/null +++ b/toolkit/components/places/BookmarkHTMLUtils.sys.mjs @@ -0,0 +1,1149 @@ +/* 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/. */ + +/** + * This file works on the old-style "bookmarks.html" file. It includes + * functions to import and export existing bookmarks to this file format. + * + * Format + * ------ + * + * Primary heading := h1 + * Old version used this to set attributes on the bookmarks RDF root, such + * as the last modified date. We only use H1 to check for the attribute + * PLACES_ROOT, which tells us that this hierarchy root is the places root. + * For backwards compatibility, if we don't find this, we assume that the + * hierarchy is rooted at the bookmarks menu. + * Heading := any heading other than h1 + * Old version used this to set attributes on the current container. We only + * care about the content of the heading container, which contains the title + * of the bookmark container. + * Bookmark := a + * HREF is the destination of the bookmark + * FEEDURL is the URI of the RSS feed. This is deprecated and no more + * supported, but some old files may still contain it. + * LAST_CHARSET is stored as an annotation so that the next time we go to + * that page we remember the user's preference. + * ICON will be stored in the favicon service + * ICON_URI is new for places bookmarks.html, it refers to the original + * URI of the favicon so we don't have to make up favicon URLs. + * Text of the <a> container is the name of the bookmark + * Ignored: LAST_VISIT, ID (writing out non-RDF IDs can confuse Firefox 2) + * Bookmark comment := dd + * This affects the previosly added bookmark + * Separator := hr + * Insert a separator into the current container + * The folder hierarchy is defined by <dl>/<ul>/<menu> (the old importing code + * handles all these cases, when we write, use <dl>). + * + * Overall design + * -------------- + * + * We need to emulate a recursive parser. A "Bookmark import frame" is created + * corresponding to each folder we encounter. These are arranged in a stack, + * and contain all the state we need to keep track of. + * + * A frame is created when we find a heading, which defines a new container. + * The frame also keeps track of the nesting of <DL>s, (in well-formed + * bookmarks files, these will have a 1-1 correspondence with frames, but we + * try to be a little more flexible here). When the nesting count decreases + * to 0, then we know a frame is complete and to pop back to the previous + * frame. + * + * Note that a lot of things happen when tags are CLOSED because we need to + * get the text from the content of the tag. For example, link and heading tags + * both require the content (= title) before actually creating it. + */ + +const { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm"); +import { FileUtils } from "resource://gre/modules/FileUtils.sys.mjs"; +import { PlacesUtils } from "resource://gre/modules/PlacesUtils.sys.mjs"; + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + PlacesBackups: "resource://gre/modules/PlacesBackups.sys.mjs", +}); + +const Container_Normal = 0; +const Container_Toolbar = 1; +const Container_Menu = 2; +const Container_Unfiled = 3; +const Container_Places = 4; + +const MICROSEC_PER_SEC = 1000000; + +const EXPORT_INDENT = " "; // four spaces + +function base64EncodeString(aString) { + let stream = Cc["@mozilla.org/io/string-input-stream;1"].createInstance( + Ci.nsIStringInputStream + ); + stream.setData(aString, aString.length); + let encoder = Cc["@mozilla.org/scriptablebase64encoder;1"].createInstance( + Ci.nsIScriptableBase64Encoder + ); + return encoder.encodeToString(stream, aString.length); +} + +/** + * Provides HTML escaping for use in HTML attributes and body of the bookmarks + * file, compatible with the old bookmarks system. + */ +function escapeHtmlEntities(aText) { + return (aText || "") + .replace(/&/g, "&") + .replace(/</g, "<") + .replace(/>/g, ">") + .replace(/"/g, """) + .replace(/'/g, "'"); +} + +/** + * Provides URL escaping for use in HTML attributes of the bookmarks file, + * compatible with the old bookmarks system. + */ +function escapeUrl(aText) { + return (aText || "").replace(/"/g, "%22"); +} + +function notifyObservers(aTopic, aInitialImport) { + Services.obs.notifyObservers( + null, + aTopic, + aInitialImport ? "html-initial" : "html" + ); +} + +export var BookmarkHTMLUtils = Object.freeze({ + /** + * Loads the current bookmarks hierarchy from a "bookmarks.html" file. + * + * @param aSpec + * String containing the "file:" URI for the existing "bookmarks.html" + * file to be loaded. + * @param [options.replace] + * Whether we should erase existing bookmarks before loading. + * Defaults to `false`. + * @param [options.source] + * The bookmark change source, used to determine the sync status for + * imported bookmarks. Defaults to `RESTORE` if `replace = true`, or + * `IMPORT` otherwise. + * + * @return {Promise} + * @resolves When the new bookmarks have been created. + * @rejects JavaScript exception. + */ + async importFromURL( + aSpec, + { + replace: aInitialImport = false, + source: aSource = aInitialImport + ? PlacesUtils.bookmarks.SOURCES.RESTORE + : PlacesUtils.bookmarks.SOURCES.IMPORT, + } = {} + ) { + notifyObservers(PlacesUtils.TOPIC_BOOKMARKS_RESTORE_BEGIN, aInitialImport); + try { + let importer = new BookmarkImporter(aInitialImport, aSource); + await importer.importFromURL(aSpec); + + notifyObservers( + PlacesUtils.TOPIC_BOOKMARKS_RESTORE_SUCCESS, + aInitialImport + ); + } catch (ex) { + console.error("Failed to import bookmarks from " + aSpec + ": " + ex); + notifyObservers( + PlacesUtils.TOPIC_BOOKMARKS_RESTORE_FAILED, + aInitialImport + ); + throw ex; + } + }, + + /** + * Loads the current bookmarks hierarchy from a "bookmarks.html" file. + * + * @param aFilePath + * OS.File path string of the "bookmarks.html" file to be loaded. + * @param [options.replace] + * Whether we should erase existing bookmarks before loading. + * Defaults to `false`. + * @param [options.source] + * The bookmark change source, used to determine the sync status for + * imported bookmarks. Defaults to `RESTORE` if `replace = true`, or + * `IMPORT` otherwise. + * + * @return {Promise} + * @resolves When the new bookmarks have been created. + * @rejects JavaScript exception. + */ + async importFromFile( + aFilePath, + { + replace: aInitialImport = false, + source: aSource = aInitialImport + ? PlacesUtils.bookmarks.SOURCES.RESTORE + : PlacesUtils.bookmarks.SOURCES.IMPORT, + } = {} + ) { + notifyObservers(PlacesUtils.TOPIC_BOOKMARKS_RESTORE_BEGIN, aInitialImport); + try { + if (!(await IOUtils.exists(aFilePath))) { + throw new Error( + "Cannot import from nonexisting html file: " + aFilePath + ); + } + let importer = new BookmarkImporter(aInitialImport, aSource); + await importer.importFromURL(PathUtils.toFileURI(aFilePath)); + + notifyObservers( + PlacesUtils.TOPIC_BOOKMARKS_RESTORE_SUCCESS, + aInitialImport + ); + } catch (ex) { + console.error("Failed to import bookmarks from " + aFilePath + ": " + ex); + notifyObservers( + PlacesUtils.TOPIC_BOOKMARKS_RESTORE_FAILED, + aInitialImport + ); + throw ex; + } + }, + + /** + * Saves the current bookmarks hierarchy to a "bookmarks.html" file. + * + * @param aFilePath + * OS.File path string for the "bookmarks.html" file to be created. + * + * @return {Promise} + * @resolves To the exported bookmarks count when the file has been created. + * @rejects JavaScript exception. + */ + async exportToFile(aFilePath) { + let [bookmarks, count] = await lazy.PlacesBackups.getBookmarksTree(); + let startTime = Date.now(); + + // Report the time taken to convert the tree to HTML. + let exporter = new BookmarkExporter(bookmarks); + await exporter.exportToFile(aFilePath); + + try { + Services.telemetry + .getHistogramById("PLACES_EXPORT_TOHTML_MS") + .add(Date.now() - startTime); + } catch (ex) { + console.error("Unable to report telemetry."); + } + + return count; + }, + + get defaultPath() { + try { + return Services.prefs.getCharPref("browser.bookmarks.file"); + } catch (ex) {} + return PathUtils.join(PathUtils.profileDir, "bookmarks.html"); + }, +}); + +function Frame(aFolder) { + this.folder = aFolder; + + /** + * How many <dl>s have been nested. Each frame/container should start + * with a heading, and is then followed by a <dl>, <ul>, or <menu>. When + * that list is complete, then it is the end of this container and we need + * to pop back up one level for new items. If we never get an open tag for + * one of these things, we should assume that the container is empty and + * that things we find should be siblings of it. Normally, these <dl>s won't + * be nested so this will be 0 or 1. + */ + this.containerNesting = 0; + + /** + * when we find a heading tag, it actually affects the title of the NEXT + * container in the list. This stores that heading tag and whether it was + * special. 'consumeHeading' resets this._ + */ + this.lastContainerType = Container_Normal; + + /** + * this contains the text from the last begin tag until now. It is reset + * at every begin tag. We can check it when we see a </a>, or </h3> + * to see what the text content of that node should be. + */ + this.previousText = ""; + + /** + * true when we hit a <dd>, which contains the description for the preceding + * <a> tag. We can't just check for </dd> like we can for </a> or </h3> + * because if there is a sub-folder, it is actually a child of the <dd> + * because the tag is never explicitly closed. If this is true and we see a + * new open tag, that means to commit the description to the previous + * bookmark. + * + * Additional weirdness happens when the previous <dt> tag contains a <h3>: + * this means there is a new folder with the given description, and whose + * children are contained in the following <dl> list. + * + * This is handled in openContainer(), which commits previous text if + * necessary. + */ + this.inDescription = false; + + /** + * contains the URL of the previous bookmark created. This is used so that + * when we encounter a <dd>, we know what bookmark to associate the text with. + * This is cleared whenever we hit a <h3>, so that we know NOT to save this + * with a bookmark, but to keep it until + */ + this.previousLink = null; + + /** + * Contains a reference to the last created bookmark or folder object. + */ + this.previousItem = null; + + /** + * Contains the date-added and last-modified-date of an imported item. + * Used to override the values set by insertBookmark, createFolder, etc. + */ + this.previousDateAdded = null; + this.previousLastModifiedDate = null; +} + +function BookmarkImporter(aInitialImport, aSource) { + this._isImportDefaults = aInitialImport; + this._source = aSource; + + // This root is where we construct the bookmarks tree into, following the format + // of the imported file. + // If we're doing an initial import, the non-menu roots will be created as + // children of this root, so in _getBookmarkTrees we'll split them out. + // If we're not doing an initial import, everything gets imported under the + // bookmark menu folder, so there won't be any need for _getBookmarkTrees to + // do separation. + this._bookmarkTree = { + type: PlacesUtils.bookmarks.TYPE_FOLDER, + guid: PlacesUtils.bookmarks.menuGuid, + children: [], + }; + + this._frames = []; + this._frames.push(new Frame(this._bookmarkTree)); +} + +BookmarkImporter.prototype = { + _safeTrim: function safeTrim(aStr) { + return aStr ? aStr.trim() : aStr; + }, + + get _curFrame() { + return this._frames[this._frames.length - 1]; + }, + + get _previousFrame() { + return this._frames[this._frames.length - 2]; + }, + + /** + * This is called when there is a new folder found. The folder takes the + * name from the previous frame's heading. + */ + _newFrame: function newFrame() { + let frame = this._curFrame; + let containerTitle = frame.previousText; + frame.previousText = ""; + let containerType = frame.lastContainerType; + + let folder = { + children: [], + type: PlacesUtils.bookmarks.TYPE_FOLDER, + }; + + switch (containerType) { + case Container_Normal: + // This can only be a sub-folder so no need to set a guid here. + folder.title = containerTitle; + break; + case Container_Places: + folder.guid = PlacesUtils.bookmarks.rootGuid; + break; + case Container_Menu: + folder.guid = PlacesUtils.bookmarks.menuGuid; + break; + case Container_Unfiled: + folder.guid = PlacesUtils.bookmarks.unfiledGuid; + break; + case Container_Toolbar: + folder.guid = PlacesUtils.bookmarks.toolbarGuid; + break; + default: + // NOT REACHED + throw new Error("Unknown bookmark container type!"); + } + + frame.folder.children.push(folder); + + if (frame.previousDateAdded != null) { + folder.dateAdded = frame.previousDateAdded; + frame.previousDateAdded = null; + } + + if (frame.previousLastModifiedDate != null) { + folder.lastModified = frame.previousLastModifiedDate; + frame.previousLastModifiedDate = null; + } + + if ( + !folder.hasOwnProperty("dateAdded") && + folder.hasOwnProperty("lastModified") + ) { + folder.dateAdded = folder.lastModified; + } + + frame.previousItem = folder; + + this._frames.push(new Frame(folder)); + }, + + /** + * Handles <hr> as a separator. + * + * @note Separators may have a title in old html files, though Places dropped + * support for them. + * We also don't import ADD_DATE or LAST_MODIFIED for separators because + * pre-Places bookmarks did not support them. + */ + _handleSeparator: function handleSeparator(aElt) { + let frame = this._curFrame; + + let separator = { + type: PlacesUtils.bookmarks.TYPE_SEPARATOR, + }; + frame.folder.children.push(separator); + frame.previousItem = separator; + }, + + /** + * Called for h2,h3,h4,h5,h6. This just stores the correct information in + * the current frame; the actual new frame corresponding to the container + * associated with the heading will be created when the tag has been closed + * and we know the title (we don't know to create a new folder or to merge + * with an existing one until we have the title). + */ + _handleHeadBegin: function handleHeadBegin(aElt) { + let frame = this._curFrame; + + // after a heading, a previous bookmark is not applicable (for example, for + // the descriptions contained in a <dd>). Neither is any previous head type + frame.previousLink = null; + frame.lastContainerType = Container_Normal; + + // It is syntactically possible for a heading to appear after another heading + // but before the <dl> that encloses that folder's contents. This should not + // happen in practice, as the file will contain "<dl></dl>" sequence for + // empty containers. + // + // Just to be on the safe side, if we encounter + // <h3>FOO</h3> + // <h3>BAR</h3> + // <dl>...content 1...</dl> + // <dl>...content 2...</dl> + // we'll pop the stack when we find the h3 for BAR, treating that as an + // implicit ending of the FOO container. The output will be FOO and BAR as + // siblings. If there's another <dl> following (as in "content 2"), those + // items will be treated as further siblings of FOO and BAR + // This special frame popping business, of course, only happens when our + // frame array has more than one element so we can avoid situations where + // we don't have a frame to parse into anymore. + if (frame.containerNesting == 0 && this._frames.length > 1) { + this._frames.pop(); + } + + // We have to check for some attributes to see if this is a "special" + // folder, which will have different creation rules when the end tag is + // processed. + if (aElt.hasAttribute("personal_toolbar_folder")) { + if (this._isImportDefaults) { + frame.lastContainerType = Container_Toolbar; + } + } else if (aElt.hasAttribute("bookmarks_menu")) { + if (this._isImportDefaults) { + frame.lastContainerType = Container_Menu; + } + } else if (aElt.hasAttribute("unfiled_bookmarks_folder")) { + if (this._isImportDefaults) { + frame.lastContainerType = Container_Unfiled; + } + } else if (aElt.hasAttribute("places_root")) { + if (this._isImportDefaults) { + frame.lastContainerType = Container_Places; + } + } else { + let addDate = aElt.getAttribute("add_date"); + if (addDate) { + frame.previousDateAdded = this._convertImportedDateToInternalDate( + addDate + ); + } + let modDate = aElt.getAttribute("last_modified"); + if (modDate) { + frame.previousLastModifiedDate = this._convertImportedDateToInternalDate( + modDate + ); + } + } + this._curFrame.previousText = ""; + }, + + /* + * Handles "<a" tags by creating a new bookmark. The title of the bookmark + * will be the text content, which will be stuffed in previousText for us + * and which will be saved by handleLinkEnd + */ + _handleLinkBegin: function handleLinkBegin(aElt) { + let frame = this._curFrame; + + frame.previousItem = null; + frame.previousText = ""; // Will hold link text, clear it. + + // Get the attributes we care about. + let href = this._safeTrim(aElt.getAttribute("href")); + let icon = this._safeTrim(aElt.getAttribute("icon")); + let iconUri = this._safeTrim(aElt.getAttribute("icon_uri")); + let lastCharset = this._safeTrim(aElt.getAttribute("last_charset")); + let keyword = this._safeTrim(aElt.getAttribute("shortcuturl")); + let postData = this._safeTrim(aElt.getAttribute("post_data")); + let dateAdded = this._safeTrim(aElt.getAttribute("add_date")); + let lastModified = this._safeTrim(aElt.getAttribute("last_modified")); + let tags = this._safeTrim(aElt.getAttribute("tags")); + + // Ignore <a> tags that have no href. + try { + frame.previousLink = Services.io.newURI(href).spec; + } catch (e) { + frame.previousLink = null; + return; + } + + let bookmark = {}; + + // Only set the url for bookmarks. + if (frame.previousLink) { + bookmark.url = frame.previousLink; + } + + if (dateAdded) { + bookmark.dateAdded = this._convertImportedDateToInternalDate(dateAdded); + } + // Save bookmark's last modified date. + if (lastModified) { + bookmark.lastModified = this._convertImportedDateToInternalDate( + lastModified + ); + } + + if (!dateAdded && lastModified) { + bookmark.dateAdded = bookmark.lastModified; + } + + if (tags) { + bookmark.tags = tags + .split(",") + .filter( + aTag => + !!aTag.length && aTag.length <= PlacesUtils.bookmarks.MAX_TAG_LENGTH + ); + + // If we end up with none, then delete the property completely. + if (!bookmark.tags.length) { + delete bookmark.tags; + } + } + + if (lastCharset) { + bookmark.charset = lastCharset; + } + + if (keyword) { + bookmark.keyword = keyword; + } + + if (postData) { + bookmark.postData = postData; + } + + if (icon) { + bookmark.icon = icon; + } + + if (iconUri) { + bookmark.iconUri = iconUri; + } + + // Add bookmark to the tree. + frame.folder.children.push(bookmark); + frame.previousItem = bookmark; + }, + + _handleContainerBegin: function handleContainerBegin() { + this._curFrame.containerNesting++; + }, + + /** + * Our "indent" count has decreased, and when we hit 0 that means that this + * container is complete and we need to pop back to the outer frame. Never + * pop the toplevel frame + */ + _handleContainerEnd: function handleContainerEnd() { + let frame = this._curFrame; + if (frame.containerNesting > 0) { + frame.containerNesting--; + } + if (this._frames.length > 1 && frame.containerNesting == 0) { + this._frames.pop(); + } + }, + + /** + * Creates the new frame for this heading now that we know the name of the + * container (tokens since the heading open tag will have been placed in + * previousText). + */ + _handleHeadEnd: function handleHeadEnd() { + this._newFrame(); + }, + + /** + * Saves the title for the given bookmark. + */ + _handleLinkEnd: function handleLinkEnd() { + let frame = this._curFrame; + frame.previousText = frame.previousText.trim(); + + if (frame.previousItem != null) { + frame.previousItem.title = frame.previousText; + } + + frame.previousText = ""; + }, + + _openContainer: function openContainer(aElt) { + if (aElt.namespaceURI != "http://www.w3.org/1999/xhtml") { + return; + } + switch (aElt.localName) { + case "h2": + case "h3": + case "h4": + case "h5": + case "h6": + this._handleHeadBegin(aElt); + break; + case "a": + this._handleLinkBegin(aElt); + break; + case "dl": + case "ul": + case "menu": + this._handleContainerBegin(); + break; + case "dd": + this._curFrame.inDescription = true; + break; + case "hr": + this._handleSeparator(aElt); + break; + } + }, + + _closeContainer: function closeContainer(aElt) { + let frame = this._curFrame; + + // Although we no longer support importing descriptions, we still need to + // clear any previous text, so that it doesn't get swallowed into other elements. + if (frame.inDescription) { + frame.previousText = ""; + frame.inDescription = false; + } + + if (aElt.namespaceURI != "http://www.w3.org/1999/xhtml") { + return; + } + switch (aElt.localName) { + case "dl": + case "ul": + case "menu": + this._handleContainerEnd(); + break; + case "dt": + break; + case "h1": + // ignore + break; + case "h2": + case "h3": + case "h4": + case "h5": + case "h6": + this._handleHeadEnd(); + break; + case "a": + this._handleLinkEnd(); + break; + default: + break; + } + }, + + _appendText: function appendText(str) { + this._curFrame.previousText += str; + }, + + /** + * Converts a string date in seconds to a date object + */ + _convertImportedDateToInternalDate: function convertImportedDateToInternalDate( + aDate + ) { + try { + if (aDate && !isNaN(aDate)) { + return new Date(parseInt(aDate) * 1000); // in bookmarks.html this value is in seconds + } + } catch (ex) { + // Do nothing. + } + return new Date(); + }, + + _walkTreeForImport(aDoc) { + if (!aDoc) { + return; + } + + let current = aDoc; + let next; + for (;;) { + switch (current.nodeType) { + case current.ELEMENT_NODE: + this._openContainer(current); + break; + case current.TEXT_NODE: + this._appendText(current.data); + break; + } + if ((next = current.firstChild)) { + current = next; + continue; + } + for (;;) { + if (current.nodeType == current.ELEMENT_NODE) { + this._closeContainer(current); + } + if (current == aDoc) { + return; + } + if ((next = current.nextSibling)) { + current = next; + break; + } + current = current.parentNode; + } + } + }, + + /** + * Returns the bookmark tree(s) from the importer. These are suitable for + * passing to PlacesUtils.bookmarks.insertTree(). + * + * @returns {Array} An array of bookmark trees. + */ + _getBookmarkTrees() { + // If we're not importing defaults, then everything gets imported under the + // Bookmarks menu. + if (!this._isImportDefaults) { + return [this._bookmarkTree]; + } + + // If we are importing defaults, we need to separate out the top-level + // default folders into separate items, for the caller to pass into insertTree. + let bookmarkTrees = [this._bookmarkTree]; + + // The children of this "root" element will contain normal children of the + // bookmark menu as well as the places roots. Hence, we need to filter out + // the separate roots, but keep the children that are relevant to the + // bookmark menu. + this._bookmarkTree.children = this._bookmarkTree.children.filter(child => { + if ( + child.guid && + PlacesUtils.bookmarks.userContentRoots.includes(child.guid) + ) { + bookmarkTrees.push(child); + return false; + } + return true; + }); + + return bookmarkTrees; + }, + + /** + * Imports the bookmarks from the importer into the places database. + * + * @param {BookmarkImporter} importer The importer from which to get the + * bookmark information. + */ + async _importBookmarks() { + if (this._isImportDefaults) { + await PlacesUtils.bookmarks.eraseEverything(); + } + + let bookmarksTrees = this._getBookmarkTrees(); + for (let tree of bookmarksTrees) { + if (!tree.children.length) { + continue; + } + + // Give the tree the source. + tree.source = this._source; + await PlacesUtils.bookmarks.insertTree(tree, { + fixupOrSkipInvalidEntries: true, + }); + insertFaviconsForTree(tree); + } + }, + + /** + * Imports data into the places database from the supplied url. + * + * @param {String} href The url to import data from. + */ + async importFromURL(href) { + let data = await fetchData(href); + + if (this._isImportDefaults && data) { + // Localize default bookmarks. Find rel="localization" links and manually + // localize using them. + let hrefs = []; + let links = data.head.querySelectorAll("link[rel='localization']"); + for (let link of links) { + if (link.getAttribute("href")) { + // We need the text, not the fully qualified URL, so we use `getAttribute`. + hrefs.push(link.getAttribute("href")); + } + } + + if (hrefs.length) { + let domLoc = new DOMLocalization(hrefs); + await domLoc.translateFragment(data.body); + } + } + + this._walkTreeForImport(data); + await this._importBookmarks(); + }, +}; + +function BookmarkExporter(aBookmarksTree) { + // Create a map of the roots. + let rootsMap = new Map(); + for (let child of aBookmarksTree.children) { + if (child.root) { + rootsMap.set(child.root, child); + // Also take the opportunity to get the correctly localised title for the + // root. + child.title = PlacesUtils.bookmarks.getLocalizedTitle(child); + } + } + + // For backwards compatibility reasons the bookmarks menu is the root, while + // the bookmarks toolbar and unfiled bookmarks will be child items. + this._root = rootsMap.get("bookmarksMenuFolder"); + + for (let key of ["toolbarFolder", "unfiledBookmarksFolder"]) { + let root = rootsMap.get(key); + if (root.children && root.children.length) { + if (!this._root.children) { + this._root.children = []; + } + this._root.children.push(root); + } + } +} + +BookmarkExporter.prototype = { + exportToFile: function exportToFile(aFilePath) { + return (async () => { + // Create a file that can be accessed by the current user only. + let out = FileUtils.openAtomicFileOutputStream( + new FileUtils.File(aFilePath) + ); + try { + // We need a buffered output stream for performance. See bug 202477. + let bufferedOut = Cc[ + "@mozilla.org/network/buffered-output-stream;1" + ].createInstance(Ci.nsIBufferedOutputStream); + bufferedOut.init(out, 4096); + try { + // Write bookmarks in UTF-8. + this._converterOut = Cc[ + "@mozilla.org/intl/converter-output-stream;1" + ].createInstance(Ci.nsIConverterOutputStream); + this._converterOut.init(bufferedOut, "utf-8"); + try { + this._writeHeader(); + await this._writeContainer(this._root); + // Retain the target file on success only. + bufferedOut.QueryInterface(Ci.nsISafeOutputStream).finish(); + } finally { + this._converterOut.close(); + this._converterOut = null; + } + } finally { + bufferedOut.close(); + } + } finally { + out.close(); + } + })(); + }, + + _converterOut: null, + + _write(aText) { + this._converterOut.writeString(aText || ""); + }, + + _writeAttribute(aName, aValue) { + this._write(" " + aName + '="' + aValue + '"'); + }, + + _writeLine(aText) { + this._write(aText + "\n"); + }, + + _writeHeader() { + this._writeLine("<!DOCTYPE NETSCAPE-Bookmark-file-1>"); + this._writeLine("<!-- This is an automatically generated file."); + this._writeLine(" It will be read and overwritten."); + this._writeLine(" DO NOT EDIT! -->"); + this._writeLine( + '<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">' + ); + this._writeLine(`<meta http-equiv="Content-Security-Policy" + content="default-src 'self'; script-src 'none'; img-src data: *; object-src 'none'"></meta>`); + this._writeLine("<TITLE>Bookmarks</TITLE>"); + }, + + async _writeContainer(aItem, aIndent = "") { + if (aItem == this._root) { + this._writeLine("<H1>" + escapeHtmlEntities(this._root.title) + "</H1>"); + this._writeLine(""); + } else { + this._write(aIndent + "<DT><H3"); + this._writeDateAttributes(aItem); + + if (aItem.root === "toolbarFolder") { + this._writeAttribute("PERSONAL_TOOLBAR_FOLDER", "true"); + } else if (aItem.root === "unfiledBookmarksFolder") { + this._writeAttribute("UNFILED_BOOKMARKS_FOLDER", "true"); + } + this._writeLine(">" + escapeHtmlEntities(aItem.title) + "</H3>"); + } + + this._writeLine(aIndent + "<DL><p>"); + if (aItem.children) { + await this._writeContainerContents(aItem, aIndent); + } + if (aItem == this._root) { + this._writeLine(aIndent + "</DL>"); + } else { + this._writeLine(aIndent + "</DL><p>"); + } + }, + + async _writeContainerContents(aItem, aIndent) { + let localIndent = aIndent + EXPORT_INDENT; + + for (let child of aItem.children) { + if (child.type == PlacesUtils.TYPE_X_MOZ_PLACE_CONTAINER) { + await this._writeContainer(child, localIndent); + } else if (child.type == PlacesUtils.TYPE_X_MOZ_PLACE_SEPARATOR) { + this._writeSeparator(child, localIndent); + } else { + await this._writeItem(child, localIndent); + } + } + }, + + _writeSeparator(aItem, aIndent) { + this._write(aIndent + "<HR"); + // We keep exporting separator titles, but don't support them anymore. + if (aItem.title) { + this._writeAttribute("NAME", escapeHtmlEntities(aItem.title)); + } + this._write(">"); + }, + + async _writeItem(aItem, aIndent) { + try { + NetUtil.newURI(aItem.uri); + } catch (ex) { + // If the item URI is invalid, skip the item instead of failing later. + return; + } + + this._write(aIndent + "<DT><A"); + this._writeAttribute("HREF", escapeUrl(aItem.uri)); + this._writeDateAttributes(aItem); + await this._writeFaviconAttribute(aItem); + + if (aItem.keyword) { + this._writeAttribute("SHORTCUTURL", escapeHtmlEntities(aItem.keyword)); + if (aItem.postData) { + this._writeAttribute("POST_DATA", escapeHtmlEntities(aItem.postData)); + } + } + + if (aItem.charset) { + this._writeAttribute("LAST_CHARSET", escapeHtmlEntities(aItem.charset)); + } + if (aItem.tags) { + this._writeAttribute("TAGS", escapeHtmlEntities(aItem.tags)); + } + this._writeLine(">" + escapeHtmlEntities(aItem.title) + "</A>"); + }, + + _writeDateAttributes(aItem) { + if (aItem.dateAdded) { + this._writeAttribute( + "ADD_DATE", + Math.floor(aItem.dateAdded / MICROSEC_PER_SEC) + ); + } + if (aItem.lastModified) { + this._writeAttribute( + "LAST_MODIFIED", + Math.floor(aItem.lastModified / MICROSEC_PER_SEC) + ); + } + }, + + async _writeFaviconAttribute(aItem) { + if (!aItem.iconUri) { + return; + } + let favicon; + try { + favicon = await PlacesUtils.promiseFaviconData(aItem.uri); + } catch (ex) { + console.error("Unexpected Error trying to fetch icon data"); + return; + } + + this._writeAttribute("ICON_URI", escapeUrl(favicon.uri.spec)); + + if (!favicon.uri.schemeIs("chrome") && favicon.dataLen > 0) { + let faviconContents = + "data:image/png;base64," + + base64EncodeString(String.fromCharCode.apply(String, favicon.data)); + this._writeAttribute("ICON", faviconContents); + } + }, +}; + +/** + * Handles inserting favicons into the database for a bookmark node. + * It is assumed the node has already been inserted into the bookmarks + * database. + * + * @param {Object} node The bookmark node for icons to be inserted. + */ +function insertFaviconForNode(node) { + if (node.icon) { + try { + // Create a fake faviconURI to use (FIXME: bug 523932) + let faviconURI = Services.io.newURI("fake-favicon-uri:" + node.url); + PlacesUtils.favicons.replaceFaviconDataFromDataURL( + faviconURI, + node.icon, + 0, + Services.scriptSecurityManager.getSystemPrincipal() + ); + PlacesUtils.favicons.setAndFetchFaviconForPage( + Services.io.newURI(node.url), + faviconURI, + false, + PlacesUtils.favicons.FAVICON_LOAD_NON_PRIVATE, + null, + Services.scriptSecurityManager.getSystemPrincipal() + ); + } catch (ex) { + console.error("Failed to import favicon data:" + ex); + } + } + + if (!node.iconUri) { + return; + } + + try { + PlacesUtils.favicons.setAndFetchFaviconForPage( + Services.io.newURI(node.url), + Services.io.newURI(node.iconUri), + false, + PlacesUtils.favicons.FAVICON_LOAD_NON_PRIVATE, + null, + Services.scriptSecurityManager.getSystemPrincipal() + ); + } catch (ex) { + console.error("Failed to import favicon URI:" + ex); + } +} + +/** + * Handles inserting favicons into the database for a bookmark tree - a node + * and its children. + * + * It is assumed the nodes have already been inserted into the bookmarks + * database. + * + * @param {Object} nodeTree The bookmark node tree for icons to be inserted. + */ +function insertFaviconsForTree(nodeTree) { + insertFaviconForNode(nodeTree); + + if (nodeTree.children) { + for (let child of nodeTree.children) { + insertFaviconsForTree(child); + } + } +} + +/** + * Handles fetching data from a URL. + * + * @param {String} href The url to fetch data from. + * @return {Promise} Returns a promise that is resolved with the data once + * the fetch is complete, or is rejected if it fails. + */ +function fetchData(href) { + return new Promise((resolve, reject) => { + let xhr = new XMLHttpRequest(); + xhr.onload = () => { + resolve(xhr.responseXML); + }; + xhr.onabort = xhr.onerror = xhr.ontimeout = () => { + reject(new Error("xmlhttprequest failed")); + }; + xhr.open("GET", href); + xhr.responseType = "document"; + xhr.overrideMimeType("text/html"); + xhr.send(); + }); +} |