chrome/utility/importer/firefox_importer.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/utility/importer/firefox_importer.h"
   6
   7 #include <set>
   8
   9 #include "base/files/file_enumerator.h"
  10 #include "base/files/file_util.h"
  11 #include "base/json/json_file_value_serializer.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/message_loop/message_loop.h"
  14 #include "base/stl_util.h"
  15 #include "base/strings/string_util.h"
  16 #include "base/strings/utf_string_conversions.h"
  17 #include "chrome/common/importer/firefox_importer_utils.h"
  18 #include "chrome/common/importer/imported_bookmark_entry.h"
  19 #include "chrome/common/importer/imported_favicon_usage.h"
  20 #include "chrome/common/importer/importer_autofill_form_data_entry.h"
  21 #include "chrome/common/importer/importer_bridge.h"
  22 #include "chrome/common/importer/importer_url_row.h"
  23 #include "chrome/grit/generated_resources.h"
  24 #include "chrome/utility/importer/bookmark_html_reader.h"
  25 #include "chrome/utility/importer/favicon_reencode.h"
  26 #include "chrome/utility/importer/nss_decryptor.h"
  27 #include "components/autofill/core/common/password_form.h"
  28 #include "sql/connection.h"
  29 #include "sql/statement.h"
  30 #include "url/gurl.h"
  31
  32 namespace {
  33
  34 // Original definition is in http://mxr.mozilla.org/firefox/source/toolkit/
  35 //  components/places/public/nsINavBookmarksService.idl
  36 enum BookmarkItemType {
  37   TYPE_BOOKMARK = 1,
  38   TYPE_FOLDER = 2,
  39   TYPE_SEPARATOR = 3,
  40   TYPE_DYNAMIC_CONTAINER = 4
  41 };
  42
  43 // Loads the default bookmarks in the Firefox installed at |app_path|,
  44 // and stores their locations in |urls|.
  45 void LoadDefaultBookmarks(const base::FilePath& app_path,
  46                           std::set<GURL>* urls) {
  47   base::FilePath file = app_path.AppendASCII("defaults")
  48       .AppendASCII("profile")
  49       .AppendASCII("bookmarks.html");
  50   urls->clear();
  51
  52   std::vector<ImportedBookmarkEntry> bookmarks;
  53   bookmark_html_reader::ImportBookmarksFile(base::Callback<bool(void)>(),
  54                                             base::Callback<bool(const GURL&)>(),
  55                                             file,
  56                                             &bookmarks,
  57                                             NULL);
  58   for (size_t i = 0; i < bookmarks.size(); ++i)
  59     urls->insert(bookmarks[i].url);
  60 }
  61
  62 // Returns true if |url| has a valid scheme that we allow to import. We
  63 // filter out the URL with a unsupported scheme.
  64 bool CanImportURL(const GURL& url) {
  65   // The URL is not valid.
  66   if (!url.is_valid())
  67     return false;
  68
  69   // Filter out the URLs with unsupported schemes.
  70   const char* const kInvalidSchemes[] = {"wyciwyg", "place", "about", "chrome"};
  71   for (size_t i = 0; i < arraysize(kInvalidSchemes); ++i) {
  72     if (url.SchemeIs(kInvalidSchemes[i]))
  73       return false;
  74   }
  75
  76   return true;
  77 }
  78
  79 }  // namespace
  80
  81 struct FirefoxImporter::BookmarkItem {
  82   int parent;
  83   int id;
  84   GURL url;
  85   base::string16 title;
  86   BookmarkItemType type;
  87   std::string keyword;
  88   base::Time date_added;
  89   int64 favicon;
  90   bool empty_folder;
  91 };
  92
  93 FirefoxImporter::FirefoxImporter() {
  94 }
  95
  96 FirefoxImporter::~FirefoxImporter() {
  97 }
  98
  99 void FirefoxImporter::StartImport(
 100     const importer::SourceProfile& source_profile,
 101     uint16 items,
 102     ImporterBridge* bridge) {
 103   bridge_ = bridge;
 104   source_path_ = source_profile.source_path;
 105   app_path_ = source_profile.app_path;
 106
 107 #if defined(OS_POSIX)
 108   locale_ = source_profile.locale;
 109 #endif
 110
 111   // The order here is important!
 112   bridge_->NotifyStarted();
 113   if ((items & importer::HOME_PAGE) && !cancelled()) {
 114     bridge_->NotifyItemStarted(importer::HOME_PAGE);
 115     ImportHomepage();  // Doesn't have a UI item.
 116     bridge_->NotifyItemEnded(importer::HOME_PAGE);
 117   }
 118
 119   // Note history should be imported before bookmarks because bookmark import
 120   // will also import favicons and we store favicon for a URL only if the URL
 121   // exist in history or bookmarks.
 122   if ((items & importer::HISTORY) && !cancelled()) {
 123     bridge_->NotifyItemStarted(importer::HISTORY);
 124     ImportHistory();
 125     bridge_->NotifyItemEnded(importer::HISTORY);
 126   }
 127
 128   if ((items & importer::FAVORITES) && !cancelled()) {
 129     bridge_->NotifyItemStarted(importer::FAVORITES);
 130     ImportBookmarks();
 131     bridge_->NotifyItemEnded(importer::FAVORITES);
 132   }
 133   if ((items & importer::SEARCH_ENGINES) && !cancelled()) {
 134     bridge_->NotifyItemStarted(importer::SEARCH_ENGINES);
 135     ImportSearchEngines();
 136     bridge_->NotifyItemEnded(importer::SEARCH_ENGINES);
 137   }
 138   if ((items & importer::PASSWORDS) && !cancelled()) {
 139     bridge_->NotifyItemStarted(importer::PASSWORDS);
 140     ImportPasswords();
 141     bridge_->NotifyItemEnded(importer::PASSWORDS);
 142   }
 143   if ((items & importer::AUTOFILL_FORM_DATA) && !cancelled()) {
 144     bridge_->NotifyItemStarted(importer::AUTOFILL_FORM_DATA);
 145     ImportAutofillFormData();
 146     bridge_->NotifyItemEnded(importer::AUTOFILL_FORM_DATA);
 147   }
 148   bridge_->NotifyEnded();
 149 }
 150
 151 void FirefoxImporter::ImportHistory() {
 152   base::FilePath file = source_path_.AppendASCII("places.sqlite");
 153   if (!base::PathExists(file))
 154     return;
 155
 156   sql::Connection db;
 157   if (!db.Open(file))
 158     return;
 159
 160   // |visit_type| represent the transition type of URLs (typed, click,
 161   // redirect, bookmark, etc.) We eliminate some URLs like sub-frames and
 162   // redirects, since we don't want them to appear in history.
 163   // Firefox transition types are defined in:
 164   //   toolkit/components/places/public/nsINavHistoryService.idl
 165   const char query[] =
 166       "SELECT h.url, h.title, h.visit_count, "
 167       "h.hidden, h.typed, v.visit_date "
 168       "FROM moz_places h JOIN moz_historyvisits v "
 169       "ON h.id = v.place_id "
 170       "WHERE v.visit_type <= 3";
 171
 172   sql::Statement s(db.GetUniqueStatement(query));
 173
 174   std::vector<ImporterURLRow> rows;
 175   while (s.Step() && !cancelled()) {
 176     GURL url(s.ColumnString(0));
 177
 178     // Filter out unwanted URLs.
 179     if (!CanImportURL(url))
 180       continue;
 181
 182     ImporterURLRow row(url);
 183     row.title = s.ColumnString16(1);
 184     row.visit_count = s.ColumnInt(2);
 185     row.hidden = s.ColumnInt(3) == 1;
 186     row.typed_count = s.ColumnInt(4);
 187     row.last_visit = base::Time::FromTimeT(s.ColumnInt64(5)/1000000);
 188
 189     rows.push_back(row);
 190   }
 191
 192   if (!rows.empty() && !cancelled())
 193     bridge_->SetHistoryItems(rows, importer::VISIT_SOURCE_FIREFOX_IMPORTED);
 194 }
 195
 196 void FirefoxImporter::ImportBookmarks() {
 197   base::FilePath file = source_path_.AppendASCII("places.sqlite");
 198   if (!base::PathExists(file))
 199     return;
 200
 201   sql::Connection db;
 202   if (!db.Open(file))
 203     return;
 204
 205   // Get the bookmark folders that we are interested in.
 206   int toolbar_folder_id = -1;
 207   int menu_folder_id = -1;
 208   int unsorted_folder_id = -1;
 209   LoadRootNodeID(&db, &toolbar_folder_id, &menu_folder_id, &unsorted_folder_id);
 210
 211   // Load livemark IDs.
 212   std::set<int> livemark_id;
 213   LoadLivemarkIDs(&db, &livemark_id);
 214
 215   // Load the default bookmarks.
 216   std::set<GURL> default_urls;
 217   LoadDefaultBookmarks(app_path_, &default_urls);
 218
 219   BookmarkList list;
 220   GetTopBookmarkFolder(&db, toolbar_folder_id, &list);
 221   GetTopBookmarkFolder(&db, menu_folder_id, &list);
 222   GetTopBookmarkFolder(&db, unsorted_folder_id, &list);
 223   size_t count = list.size();
 224   for (size_t i = 0; i < count; ++i)
 225     GetWholeBookmarkFolder(&db, &list, i, NULL);
 226
 227   std::vector<ImportedBookmarkEntry> bookmarks;
 228   std::vector<importer::URLKeywordInfo> url_keywords;
 229   FaviconMap favicon_map;
 230
 231   // TODO(jcampan): http://b/issue?id=1196285 we do not support POST based
 232   //                keywords yet.  We won't include them in the list.
 233   std::set<int> post_keyword_ids;
 234   const char query[] =
 235       "SELECT b.id FROM moz_bookmarks b "
 236       "INNER JOIN moz_items_annos ia ON ia.item_id = b.id "
 237       "INNER JOIN moz_anno_attributes aa ON ia.anno_attribute_id = aa.id "
 238       "WHERE aa.name = 'bookmarkProperties/POSTData'";
 239   sql::Statement s(db.GetUniqueStatement(query));
 240
 241   if (!s.is_valid())
 242     return;
 243
 244   while (s.Step() && !cancelled())
 245     post_keyword_ids.insert(s.ColumnInt(0));
 246
 247   for (size_t i = 0; i < list.size(); ++i) {
 248     BookmarkItem* item = list[i];
 249
 250     if (item->type == TYPE_FOLDER) {
 251       // Folders are added implicitly on adding children, so we only explicitly
 252       // add empty folders.
 253       if (!item->empty_folder)
 254         continue;
 255     } else if (item->type == TYPE_BOOKMARK) {
 256       // Import only valid bookmarks
 257       if (!CanImportURL(item->url))
 258         continue;
 259     } else {
 260       continue;
 261     }
 262
 263     // Skip the default bookmarks and unwanted URLs.
 264     if (default_urls.find(item->url) != default_urls.end() ||
 265         post_keyword_ids.find(item->id) != post_keyword_ids.end())
 266       continue;
 267
 268     // Find the bookmark path by tracing their links to parent folders.
 269     std::vector<base::string16> path;
 270     BookmarkItem* child = item;
 271     bool found_path = false;
 272     bool is_in_toolbar = false;
 273     while (child->parent >= 0) {
 274       BookmarkItem* parent = list[child->parent];
 275       if (livemark_id.find(parent->id) != livemark_id.end()) {
 276         // Don't import live bookmarks.
 277         break;
 278       }
 279
 280       if (parent->id != menu_folder_id) {
 281         // To avoid excessive nesting, omit the name for the bookmarks menu
 282         // folder.
 283         path.insert(path.begin(), parent->title);
 284       }
 285
 286       if (parent->id == toolbar_folder_id)
 287         is_in_toolbar = true;
 288
 289       if (parent->id == toolbar_folder_id ||
 290           parent->id == menu_folder_id ||
 291           parent->id == unsorted_folder_id) {
 292         // We've reached a root node, hooray!
 293         found_path = true;
 294         break;
 295       }
 296
 297       child = parent;
 298     }
 299
 300     if (!found_path)
 301       continue;
 302
 303     ImportedBookmarkEntry entry;
 304     entry.creation_time = item->date_added;
 305     entry.title = item->title;
 306     entry.url = item->url;
 307     entry.path = path;
 308     entry.in_toolbar = is_in_toolbar;
 309     entry.is_folder = item->type == TYPE_FOLDER;
 310
 311     bookmarks.push_back(entry);
 312
 313     if (item->type == TYPE_BOOKMARK) {
 314       if (item->favicon)
 315         favicon_map[item->favicon].insert(item->url);
 316
 317       // This bookmark has a keyword, we should import it.
 318       if (!item->keyword.empty() && item->url.is_valid()) {
 319         importer::URLKeywordInfo url_keyword_info;
 320         url_keyword_info.url = item->url;
 321         url_keyword_info.keyword.assign(base::UTF8ToUTF16(item->keyword));
 322         url_keyword_info.display_name = item->title;
 323         url_keywords.push_back(url_keyword_info);
 324       }
 325     }
 326   }
 327
 328   STLDeleteElements(&list);
 329
 330   // Write into profile.
 331   if (!bookmarks.empty() && !cancelled()) {
 332     const base::string16& first_folder_name =
 333         bridge_->GetLocalizedString(IDS_BOOKMARK_GROUP_FROM_FIREFOX);
 334     bridge_->AddBookmarks(bookmarks, first_folder_name);
 335   }
 336   if (!url_keywords.empty() && !cancelled()) {
 337     bridge_->SetKeywords(url_keywords, false);
 338   }
 339   if (!favicon_map.empty() && !cancelled()) {
 340     std::vector<ImportedFaviconUsage> favicons;
 341     LoadFavicons(&db, favicon_map, &favicons);
 342     bridge_->SetFavicons(favicons);
 343   }
 344 }
 345
 346 void FirefoxImporter::ImportPasswords() {
 347   // Initializes NSS3.
 348   NSSDecryptor decryptor;
 349   if (!decryptor.Init(source_path_, source_path_) &&
 350       !decryptor.Init(app_path_, source_path_)) {
 351     return;
 352   }
 353
 354   std::vector<autofill::PasswordForm> forms;
 355   base::FilePath source_path = source_path_;
 356   base::FilePath file = source_path.AppendASCII("signons.sqlite");
 357   if (base::PathExists(file)) {
 358     // Since Firefox 3.1, passwords are in signons.sqlite db.
 359     decryptor.ReadAndParseSignons(file, &forms);
 360   } else {
 361     // Firefox 3.0 uses signons3.txt to store the passwords.
 362     file = source_path.AppendASCII("signons3.txt");
 363     if (!base::PathExists(file))
 364       file = source_path.AppendASCII("signons2.txt");
 365
 366     std::string content;
 367     base::ReadFileToString(file, &content);
 368     decryptor.ParseSignons(content, &forms);
 369   }
 370
 371   if (!cancelled()) {
 372     for (size_t i = 0; i < forms.size(); ++i) {
 373       bridge_->SetPasswordForm(forms[i]);
 374     }
 375   }
 376 }
 377
 378 void FirefoxImporter::ImportSearchEngines() {
 379   std::vector<std::string> search_engine_data;
 380   GetSearchEnginesXMLData(&search_engine_data);
 381
 382   bridge_->SetFirefoxSearchEnginesXMLData(search_engine_data);
 383 }
 384
 385 void FirefoxImporter::ImportHomepage() {
 386   GURL home_page = GetHomepage(source_path_);
 387   if (home_page.is_valid() && !IsDefaultHomepage(home_page, app_path_)) {
 388     bridge_->AddHomePage(home_page);
 389   }
 390 }
 391
 392 void FirefoxImporter::ImportAutofillFormData() {
 393   base::FilePath file = source_path_.AppendASCII("formhistory.sqlite");
 394   if (!base::PathExists(file))
 395     return;
 396
 397   sql::Connection db;
 398   if (!db.Open(file))
 399     return;
 400
 401   const char query[] =
 402       "SELECT fieldname, value, timesUsed, firstUsed, lastUsed FROM "
 403       "moz_formhistory";
 404
 405   sql::Statement s(db.GetUniqueStatement(query));
 406
 407   std::vector<ImporterAutofillFormDataEntry> form_entries;
 408   while (s.Step() && !cancelled()) {
 409     ImporterAutofillFormDataEntry form_entry;
 410     form_entry.name = s.ColumnString16(0);
 411     form_entry.value = s.ColumnString16(1);
 412     form_entry.times_used = s.ColumnInt(2);
 413     form_entry.first_used = base::Time::FromTimeT(s.ColumnInt64(3) / 1000000);
 414     form_entry.last_used = base::Time::FromTimeT(s.ColumnInt64(4) / 1000000);
 415
 416     // Don't import search bar history.
 417     if (base::UTF16ToUTF8(form_entry.name) == "searchbar-history")
 418       continue;
 419
 420     form_entries.push_back(form_entry);
 421   }
 422
 423   if (!form_entries.empty() && !cancelled())
 424     bridge_->SetAutofillFormData(form_entries);
 425 }
 426
 427 void FirefoxImporter::GetSearchEnginesXMLData(
 428     std::vector<std::string>* search_engine_data) {
 429   base::FilePath file = source_path_.AppendASCII("search.sqlite");
 430   if (!base::PathExists(file)) {
 431     // Since Firefox 3.5, search engines are no longer stored in search.sqlite.
 432     // Instead, search.json is used for storing search engines.
 433     GetSearchEnginesXMLDataFromJSON(search_engine_data);
 434     return;
 435   }
 436
 437   sql::Connection db;
 438   if (!db.Open(file))
 439     return;
 440
 441   const char query[] =
 442       "SELECT engineid FROM engine_data "
 443       "WHERE engineid NOT IN "
 444       "(SELECT engineid FROM engine_data "
 445       "WHERE name='hidden') "
 446       "ORDER BY value ASC";
 447
 448   sql::Statement s(db.GetUniqueStatement(query));
 449   if (!s.is_valid())
 450     return;
 451
 452   const base::FilePath searchplugins_path(FILE_PATH_LITERAL("searchplugins"));
 453   // Search engine definitions are XMLs stored in two directories. Default
 454   // engines are in the app directory (app_path_) and custom engines are
 455   // in the profile directory (source_path_).
 456
 457   // Since Firefox 21, app_path_ engines are in 'browser' subdirectory:
 458   base::FilePath app_path =
 459       app_path_.AppendASCII("browser").Append(searchplugins_path);
 460   if (!base::PathExists(app_path)) {
 461     // This might be an older Firefox, try old location without the 'browser'
 462     // path component:
 463     app_path = app_path_.Append(searchplugins_path);
 464   }
 465
 466   base::FilePath profile_path = source_path_.Append(searchplugins_path);
 467
 468   // Firefox doesn't store a search engine in its sqlite database unless the
 469   // user has added a engine. So we get search engines from sqlite db as well
 470   // as from the file system.
 471   if (s.Step()) {
 472     const std::string kAppPrefix("[app]/");
 473     const std::string kProfilePrefix("[profile]/");
 474     do {
 475       base::FilePath file;
 476       std::string engine(s.ColumnString(0));
 477
 478       // The string contains [app]/<name>.xml or [profile]/<name>.xml where
 479       // the [app] and [profile] need to be replaced with the actual app or
 480       // profile path.
 481       size_t index = engine.find(kAppPrefix);
 482       if (index != std::string::npos) {
 483         // Remove '[app]/'.
 484         file = app_path.AppendASCII(engine.substr(index + kAppPrefix.length()));
 485       } else if ((index = engine.find(kProfilePrefix)) != std::string::npos) {
 486         // Remove '[profile]/'.
 487           file = profile_path.AppendASCII(
 488               engine.substr(index + kProfilePrefix.length()));
 489       } else {
 490         // Looks like absolute path to the file.
 491         file = base::FilePath::FromUTF8Unsafe(engine);
 492       }
 493       std::string file_data;
 494       base::ReadFileToString(file, &file_data);
 495       search_engine_data->push_back(file_data);
 496     } while (s.Step() && !cancelled());
 497   }
 498
 499 #if defined(OS_POSIX)
 500   // Ubuntu-flavored Firefox supports locale-specific search engines via
 501   // locale-named subdirectories. They fall back to en-US.
 502   // See http://crbug.com/53899
 503   // TODO(jshin): we need to make sure our locale code matches that of
 504   // Firefox.
 505   DCHECK(!locale_.empty());
 506   base::FilePath locale_app_path = app_path.AppendASCII(locale_);
 507   base::FilePath default_locale_app_path = app_path.AppendASCII("en-US");
 508   if (base::DirectoryExists(locale_app_path))
 509     app_path = locale_app_path;
 510   else if (base::DirectoryExists(default_locale_app_path))
 511     app_path = default_locale_app_path;
 512 #endif
 513
 514   // Get search engine definition from file system.
 515   base::FileEnumerator engines(app_path, false, base::FileEnumerator::FILES);
 516   for (base::FilePath engine_path = engines.Next();
 517        !engine_path.value().empty(); engine_path = engines.Next()) {
 518     std::string file_data;
 519     base::ReadFileToString(file, &file_data);
 520     search_engine_data->push_back(file_data);
 521   }
 522 }
 523
 524 void FirefoxImporter::GetSearchEnginesXMLDataFromJSON(
 525     std::vector<std::string>* search_engine_data) {
 526   // search-metadata.json contains keywords for search engines. This
 527   // file exists only if the user has set keywords for search engines.
 528   base::FilePath search_metadata_json_file =
 529       source_path_.AppendASCII("search-metadata.json");
 530   JSONFileValueSerializer metadata_serializer(search_metadata_json_file);
 531   scoped_ptr<base::Value> metadata_root(
 532       metadata_serializer.Deserialize(NULL, NULL));
 533   const base::DictionaryValue* search_metadata_root = NULL;
 534   if (metadata_root)
 535     metadata_root->GetAsDictionary(&search_metadata_root);
 536
 537   // search.json contains information about search engines to import.
 538   base::FilePath search_json_file = source_path_.AppendASCII("search.json");
 539   if (!base::PathExists(search_json_file))
 540     return;
 541
 542   JSONFileValueSerializer serializer(search_json_file);
 543   scoped_ptr<base::Value> root(serializer.Deserialize(NULL, NULL));
 544   const base::DictionaryValue* search_root = NULL;
 545   if (!root || !root->GetAsDictionary(&search_root))
 546     return;
 547
 548   const std::string kDirectories("directories");
 549   const base::DictionaryValue* search_directories = NULL;
 550   if (!search_root->GetDictionary(kDirectories, &search_directories))
 551     return;
 552
 553   // Dictionary |search_directories| contains a list of search engines
 554   // (default and installed). The list can be found from key <engines>
 555   // of the dictionary. Key <engines> is a grandchild of key <directories>.
 556   // However, key <engines> parent's key is dynamic which depends on
 557   // operating systems. For example,
 558   //   Ubuntu (for default search engine):
 559   //     /usr/lib/firefox/distribution/searchplugins/locale/en-US
 560   //   Ubuntu (for installed search engines):
 561   //     /home/<username>/.mozilla/firefox/lcd50n4n.default/searchplugins
 562   //   Windows (for default search engine):
 563   //     C:\\Program Files (x86)\\Mozilla Firefox\\browser\\searchplugins
 564   // Therefore, it needs to be retrieved by searching.
 565
 566   for (base::DictionaryValue::Iterator it(*search_directories); !it.IsAtEnd();
 567        it.Advance()) {
 568     // The key of |it| may contains dot (.) which cannot be used as <key>
 569     // for retrieving <engines>. Hence, it is needed to get |it| as dictionary.
 570     // The resulted dictionary can be used for retrieving <engines>.
 571     const std::string kEngines("engines");
 572     const base::DictionaryValue* search_directory = NULL;
 573     if (!it.value().GetAsDictionary(&search_directory))
 574       continue;
 575
 576     const base::ListValue* search_engines = NULL;
 577     if (!search_directory->GetList(kEngines, &search_engines))
 578       continue;
 579
 580     const std::string kFilePath("filePath");
 581     const std::string kHidden("_hidden");
 582     for (size_t i = 0; i < search_engines->GetSize(); ++i) {
 583       const base::DictionaryValue* engine_info = NULL;
 584       if (!search_engines->GetDictionary(i, &engine_info))
 585         continue;
 586
 587       bool is_hidden = false;
 588       std::string file_path;
 589       if (!engine_info->GetBoolean(kHidden, &is_hidden) ||
 590           !engine_info->GetString(kFilePath, &file_path))
 591         continue;
 592
 593       if (!is_hidden) {
 594         const std::string kAppPrefix("[app]/");
 595         const std::string kProfilePrefix("[profile]/");
 596         base::FilePath xml_file = base::FilePath::FromUTF8Unsafe(file_path);
 597
 598         // If |file_path| contains [app] or [profile] then they need to be
 599         // replaced with the actual app or profile path.
 600         size_t index = file_path.find(kAppPrefix);
 601         if (index != std::string::npos) {
 602           // Replace '[app]/' with actual app path.
 603           xml_file = app_path_.AppendASCII("searchplugins").AppendASCII(
 604               file_path.substr(index + kAppPrefix.length()));
 605         } else if ((index = file_path.find(kProfilePrefix)) !=
 606                    std::string::npos) {
 607           // Replace '[profile]/' with actual profile path.
 608           xml_file = source_path_.AppendASCII("searchplugins").AppendASCII(
 609               file_path.substr(index + kProfilePrefix.length()));
 610         }
 611
 612         std::string file_data;
 613         base::ReadFileToString(xml_file, &file_data);
 614
 615         // If a keyword is mentioned for this search engine, then add
 616         // it to the XML string as an <Alias> element and use this updated
 617         // string.
 618         const base::DictionaryValue* search_xml_path = NULL;
 619         if (search_metadata_root && search_metadata_root->HasKey(file_path) &&
 620             search_metadata_root->GetDictionaryWithoutPathExpansion(
 621                 file_path, &search_xml_path)) {
 622           std::string alias;
 623           search_xml_path->GetString("alias", &alias);
 624
 625           // Add <Alias> element as the last child element.
 626           size_t end_of_parent = file_data.find("</SearchPlugin>");
 627           if (end_of_parent != std::string::npos && !alias.empty())
 628             file_data.insert(end_of_parent, "<Alias>" + alias + "</Alias> \n");
 629         }
 630         search_engine_data->push_back(file_data);
 631       }
 632     }
 633   }
 634 }
 635
 636 void FirefoxImporter::LoadRootNodeID(sql::Connection* db,
 637                                       int* toolbar_folder_id,
 638                                       int* menu_folder_id,
 639                                       int* unsorted_folder_id) {
 640   static const char kToolbarFolderName[] = "toolbar";
 641   static const char kMenuFolderName[] = "menu";
 642   static const char kUnsortedFolderName[] = "unfiled";
 643
 644   const char query[] = "SELECT root_name, folder_id FROM moz_bookmarks_roots";
 645   sql::Statement s(db->GetUniqueStatement(query));
 646
 647   while (s.Step()) {
 648     std::string folder = s.ColumnString(0);
 649     int id = s.ColumnInt(1);
 650     if (folder == kToolbarFolderName)
 651       *toolbar_folder_id = id;
 652     else if (folder == kMenuFolderName)
 653       *menu_folder_id = id;
 654     else if (folder == kUnsortedFolderName)
 655       *unsorted_folder_id = id;
 656   }
 657 }
 658
 659 void FirefoxImporter::LoadLivemarkIDs(sql::Connection* db,
 660                                        std::set<int>* livemark) {
 661   static const char kFeedAnnotation[] = "livemark/feedURI";
 662   livemark->clear();
 663
 664   const char query[] =
 665       "SELECT b.item_id "
 666       "FROM moz_anno_attributes a "
 667       "JOIN moz_items_annos b ON a.id = b.anno_attribute_id "
 668       "WHERE a.name = ? ";
 669   sql::Statement s(db->GetUniqueStatement(query));
 670   s.BindString(0, kFeedAnnotation);
 671
 672   while (s.Step() && !cancelled())
 673     livemark->insert(s.ColumnInt(0));
 674 }
 675
 676 void FirefoxImporter::GetTopBookmarkFolder(sql::Connection* db,
 677                                             int folder_id,
 678                                             BookmarkList* list) {
 679   const char query[] =
 680       "SELECT b.title "
 681       "FROM moz_bookmarks b "
 682       "WHERE b.type = 2 AND b.id = ? "
 683       "ORDER BY b.position";
 684   sql::Statement s(db->GetUniqueStatement(query));
 685   s.BindInt(0, folder_id);
 686
 687   if (s.Step()) {
 688     BookmarkItem* item = new BookmarkItem;
 689     item->parent = -1;  // The top level folder has no parent.
 690     item->id = folder_id;
 691     item->title = s.ColumnString16(0);
 692     item->type = TYPE_FOLDER;
 693     item->favicon = 0;
 694     item->empty_folder = true;
 695     list->push_back(item);
 696   }
 697 }
 698
 699 void FirefoxImporter::GetWholeBookmarkFolder(sql::Connection* db,
 700                                               BookmarkList* list,
 701                                               size_t position,
 702                                               bool* empty_folder) {
 703   if (position >= list->size()) {
 704     NOTREACHED();
 705     return;
 706   }
 707
 708   const char query[] =
 709       "SELECT b.id, h.url, COALESCE(b.title, h.title), "
 710       "b.type, k.keyword, b.dateAdded, h.favicon_id "
 711       "FROM moz_bookmarks b "
 712       "LEFT JOIN moz_places h ON b.fk = h.id "
 713       "LEFT JOIN moz_keywords k ON k.id = b.keyword_id "
 714       "WHERE b.type IN (1,2) AND b.parent = ? "
 715       "ORDER BY b.position";
 716   sql::Statement s(db->GetUniqueStatement(query));
 717   s.BindInt(0, (*list)[position]->id);
 718
 719   BookmarkList temp_list;
 720   while (s.Step()) {
 721     BookmarkItem* item = new BookmarkItem;
 722     item->parent = static_cast<int>(position);
 723     item->id = s.ColumnInt(0);
 724     item->url = GURL(s.ColumnString(1));
 725     item->title = s.ColumnString16(2);
 726     item->type = static_cast<BookmarkItemType>(s.ColumnInt(3));
 727     item->keyword = s.ColumnString(4);
 728     item->date_added = base::Time::FromTimeT(s.ColumnInt64(5)/1000000);
 729     item->favicon = s.ColumnInt64(6);
 730     item->empty_folder = true;
 731
 732     temp_list.push_back(item);
 733     if (empty_folder != NULL)
 734       *empty_folder = false;
 735   }
 736
 737   // Appends all items to the list.
 738   for (BookmarkList::iterator i = temp_list.begin();
 739        i != temp_list.end(); ++i) {
 740     list->push_back(*i);
 741     // Recursive add bookmarks in sub-folders.
 742     if ((*i)->type == TYPE_FOLDER)
 743       GetWholeBookmarkFolder(db, list, list->size() - 1, &(*i)->empty_folder);
 744   }
 745 }
 746
 747 void FirefoxImporter::LoadFavicons(
 748     sql::Connection* db,
 749     const FaviconMap& favicon_map,
 750     std::vector<ImportedFaviconUsage>* favicons) {
 751   const char query[] = "SELECT url, data FROM moz_favicons WHERE id=?";
 752   sql::Statement s(db->GetUniqueStatement(query));
 753
 754   if (!s.is_valid())
 755     return;
 756
 757   for (FaviconMap::const_iterator i = favicon_map.begin();
 758        i != favicon_map.end(); ++i) {
 759     s.BindInt64(0, i->first);
 760     if (s.Step()) {
 761       ImportedFaviconUsage usage;
 762
 763       usage.favicon_url = GURL(s.ColumnString(0));
 764       if (!usage.favicon_url.is_valid())
 765         continue;  // Don't bother importing favicons with invalid URLs.
 766
 767       std::vector<unsigned char> data;
 768       s.ColumnBlobAsVector(1, &data);
 769       if (data.empty())
 770         continue;  // Data definitely invalid.
 771
 772       if (!importer::ReencodeFavicon(&data[0], data.size(), &usage.png_data))
 773         continue;  // Unable to decode.
 774
 775       usage.urls = i->second;
 776       favicons->push_back(usage);
 777     }
 778     s.Reset(true);
 779   }
 780 }