chrome/utility/importer/ie_importer_win.cc

   1 // Copyright (c) 2012 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/ie_importer_win.h"
   6
   7 #include <ole2.h>
   8 #include <intshcut.h>
   9 #include <shlobj.h>
  10 #include <urlhist.h>
  11 #include <wininet.h>
  12
  13 #include <algorithm>
  14 #include <map>
  15 #include <string>
  16 #include <vector>
  17
  18 #include "base/files/file_enumerator.h"
  19 #include "base/files/file_path.h"
  20 #include "base/files/file_util.h"
  21 #include "base/strings/string16.h"
  22 #include "base/strings/string_split.h"
  23 #include "base/strings/string_util.h"
  24 #include "base/strings/utf_string_conversions.h"
  25 #include "base/time/time.h"
  26 #include "base/win/registry.h"
  27 #include "base/win/scoped_co_mem.h"
  28 #include "base/win/scoped_comptr.h"
  29 #include "base/win/scoped_handle.h"
  30 #include "base/win/scoped_propvariant.h"
  31 #include "base/win/windows_version.h"
  32 #include "chrome/common/importer/ie_importer_utils_win.h"
  33 #include "chrome/common/importer/imported_bookmark_entry.h"
  34 #include "chrome/common/importer/imported_favicon_usage.h"
  35 #include "chrome/common/importer/importer_bridge.h"
  36 #include "chrome/common/importer/importer_data_types.h"
  37 #include "chrome/common/importer/importer_url_row.h"
  38 #include "chrome/common/importer/pstore_declarations.h"
  39 #include "chrome/grit/generated_resources.h"
  40 #include "chrome/utility/importer/favicon_reencode.h"
  41 #include "components/autofill/core/common/password_form.h"
  42 #include "ui/base/l10n/l10n_util.h"
  43 #include "url/gurl.h"
  44 #include "url/url_constants.h"
  45
  46 namespace {
  47
  48 // Registry key paths from which we import IE settings.
  49 const base::char16 kSearchScopePath[] =
  50   L"Software\\Microsoft\\Internet Explorer\\SearchScopes";
  51 const base::char16 kIEVersionKey[] =
  52   L"Software\\Microsoft\\Internet Explorer";
  53 const base::char16 kIEToolbarKey[] =
  54   L"Software\\Microsoft\\Internet Explorer\\Toolbar";
  55
  56 // NTFS stream name of favicon image data.
  57 const base::char16 kFaviconStreamName[] = L":favicon:$DATA";
  58
  59 // A struct that hosts the information of AutoComplete data in PStore.
  60 struct AutoCompleteInfo {
  61   base::string16 key;
  62   std::vector<base::string16> data;
  63   bool is_url;
  64 };
  65
  66 // Gets the creation time of the given file or directory.
  67 base::Time GetFileCreationTime(const base::string16& file) {
  68   base::Time creation_time;
  69   base::win::ScopedHandle file_handle(
  70       CreateFile(file.c_str(), GENERIC_READ,
  71                  FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
  72                  NULL, OPEN_EXISTING,
  73                  FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS, NULL));
  74   FILETIME creation_filetime;
  75   if (GetFileTime(file_handle, &creation_filetime, NULL, NULL))
  76     creation_time = base::Time::FromFileTime(creation_filetime);
  77   return creation_time;
  78 }
  79
  80 // Safely read an object of type T from a raw sequence of bytes.
  81 template<typename T>
  82 bool BinaryRead(T* data, size_t offset, const std::vector<uint8>& blob) {
  83   if (offset + sizeof(T) > blob.size())
  84     return false;
  85   memcpy(data, &blob[offset], sizeof(T));
  86   return true;
  87 }
  88
  89 // Safely read an ITEMIDLIST from a raw sequence of bytes.
  90 //
  91 // An ITEMIDLIST is a list of SHITEMIDs, terminated by a SHITEMID with
  92 // .cb = 0. Here, before simply casting &blob[offset] to LPITEMIDLIST,
  93 // we verify that the list structure is not overrunning the boundary of
  94 // the binary blob.
  95 LPCITEMIDLIST BinaryReadItemIDList(size_t offset, size_t idlist_size,
  96                                    const std::vector<uint8>& blob) {
  97   size_t head = 0;
  98   while (true) {
  99     // Use a USHORT instead of SHITEMID to avoid buffer over read.
 100     USHORT id_cb;
 101     if (head >= idlist_size || !BinaryRead(&id_cb, offset + head, blob))
 102       return NULL;
 103     if (id_cb == 0)
 104       break;
 105     head += id_cb;
 106   }
 107   return reinterpret_cast<LPCITEMIDLIST>(&blob[offset]);
 108 }
 109
 110 // Compares the two bookmarks in the order of IE's Favorites menu.
 111 // Returns true if rhs should come later than lhs (lhs < rhs).
 112 struct IEOrderBookmarkComparator {
 113   bool operator()(const ImportedBookmarkEntry& lhs,
 114                   const ImportedBookmarkEntry& rhs) const {
 115     static const uint32 kNotSorted = 0xfffffffb; // IE uses this magic value.
 116     base::FilePath lhs_prefix;
 117     base::FilePath rhs_prefix;
 118     for (size_t i = 0; i <= lhs.path.size() && i <= rhs.path.size(); ++i) {
 119       const base::FilePath::StringType lhs_i =
 120         (i < lhs.path.size() ? lhs.path[i] : lhs.title + L".url");
 121       const base::FilePath::StringType rhs_i =
 122         (i < rhs.path.size() ? rhs.path[i] : rhs.title + L".url");
 123       lhs_prefix = lhs_prefix.Append(lhs_i);
 124       rhs_prefix = rhs_prefix.Append(rhs_i);
 125       if (lhs_i == rhs_i)
 126         continue;
 127       // The first path element that differs between the two.
 128       std::map<base::FilePath, uint32>::const_iterator lhs_iter =
 129         sort_index_->find(lhs_prefix);
 130       std::map<base::FilePath, uint32>::const_iterator rhs_iter =
 131         sort_index_->find(rhs_prefix);
 132       uint32 lhs_sort_index = (lhs_iter == sort_index_->end() ? kNotSorted
 133         : lhs_iter->second);
 134       uint32 rhs_sort_index = (rhs_iter == sort_index_->end() ? kNotSorted
 135         : rhs_iter->second);
 136       if (lhs_sort_index != rhs_sort_index)
 137         return lhs_sort_index < rhs_sort_index;
 138       // If they have the same sort order, sort alphabetically.
 139       return lhs_i < rhs_i;
 140     }
 141     return lhs.path.size() < rhs.path.size();
 142   }
 143   const std::map<base::FilePath, uint32>* sort_index_;
 144 };
 145
 146 // IE stores the order of the Favorites menu in registry under:
 147 // HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Favorites.
 148 // The folder hierarchy of Favorites menu is directly mapped to the key
 149 // hierarchy in the registry.
 150 //
 151 // If the order of the items in a folder is customized by user, the order is
 152 // recorded in the REG_BINARY value named "Order" of the corresponding key.
 153 // The content of the "Order" value is a raw binary dump of an array of the
 154 // following data structure
 155 //   struct {
 156 //     uint32 size;  // Note that ITEMIDLIST is variably-sized.
 157 //     uint32 sort_index;  // 0 means this is the first item, 1 the second, ...
 158 //     ITEMIDLIST item_id;
 159 //   };
 160 // where each item_id should correspond to a favorites link file (*.url) in
 161 // the current folder.
 162 bool ParseFavoritesOrderBlob(
 163     const Importer* importer,
 164     const std::vector<uint8>& blob,
 165     const base::FilePath& path,
 166     std::map<base::FilePath, uint32>* sort_index) WARN_UNUSED_RESULT {
 167   static const int kItemCountOffset = 16;
 168   static const int kItemListStartOffset = 20;
 169
 170   // Read the number of items.
 171   uint32 item_count = 0;
 172   if (!BinaryRead(&item_count, kItemCountOffset, blob))
 173     return false;
 174
 175   // Traverse over the items.
 176   size_t base_offset = kItemListStartOffset;
 177   for (uint32 i = 0; i < item_count && !importer->cancelled(); ++i) {
 178     static const int kSizeOffset = 0;
 179     static const int kSortIndexOffset = 4;
 180     static const int kItemIDListOffset = 8;
 181
 182     // Read the size (number of bytes) of the current item.
 183     uint32 item_size = 0;
 184     if (!BinaryRead(&item_size, base_offset + kSizeOffset, blob) ||
 185         base_offset + item_size <= base_offset || // checking overflow
 186         base_offset + item_size > blob.size())
 187       return false;
 188
 189     // Read the sort index of the current item.
 190     uint32 item_sort_index = 0;
 191     if (!BinaryRead(&item_sort_index, base_offset + kSortIndexOffset, blob))
 192       return false;
 193
 194     // Read the file name from the ITEMIDLIST structure.
 195     LPCITEMIDLIST idlist = BinaryReadItemIDList(
 196       base_offset + kItemIDListOffset, item_size - kItemIDListOffset, blob);
 197     TCHAR item_filename[MAX_PATH];
 198     if (!idlist || FAILED(SHGetPathFromIDList(idlist, item_filename)))
 199       return false;
 200     base::FilePath item_relative_path =
 201       path.Append(base::FilePath(item_filename).BaseName());
 202
 203     // Record the retrieved information and go to the next item.
 204     sort_index->insert(std::make_pair(item_relative_path, item_sort_index));
 205     base_offset += item_size;
 206   }
 207   return true;
 208 }
 209
 210 bool ParseFavoritesOrderRegistryTree(
 211     const Importer* importer,
 212     const base::win::RegKey& key,
 213     const base::FilePath& path,
 214     std::map<base::FilePath, uint32>* sort_index) WARN_UNUSED_RESULT {
 215   // Parse the order information of the current folder.
 216   DWORD blob_length = 0;
 217   if (key.ReadValue(L"Order", NULL, &blob_length, NULL) == ERROR_SUCCESS) {
 218     std::vector<uint8> blob(blob_length);
 219     if (blob_length > 0 &&
 220         key.ReadValue(L"Order", reinterpret_cast<DWORD*>(&blob[0]),
 221                       &blob_length, NULL) == ERROR_SUCCESS) {
 222       if (!ParseFavoritesOrderBlob(importer, blob, path, sort_index))
 223         return false;
 224     }
 225   }
 226
 227   // Recursively parse subfolders.
 228   for (base::win::RegistryKeyIterator child(key.Handle(), L"");
 229        child.Valid() && !importer->cancelled();
 230        ++child) {
 231     base::win::RegKey subkey(key.Handle(), child.Name(), KEY_READ);
 232     if (subkey.Valid()) {
 233       base::FilePath subpath(path.Append(child.Name()));
 234       if (!ParseFavoritesOrderRegistryTree(importer, subkey, subpath,
 235                                            sort_index)) {
 236         return false;
 237       }
 238     }
 239   }
 240   return true;
 241 }
 242
 243 bool ParseFavoritesOrderInfo(
 244     const Importer* importer,
 245     std::map<base::FilePath, uint32>* sort_index) WARN_UNUSED_RESULT {
 246   base::string16 key_path(importer::GetIEFavoritesOrderKey());
 247   base::win::RegKey key(HKEY_CURRENT_USER, key_path.c_str(), KEY_READ);
 248   if (!key.Valid())
 249     return false;
 250   return ParseFavoritesOrderRegistryTree(importer, key, base::FilePath(),
 251                                          sort_index);
 252 }
 253
 254 // Reads the sort order from registry. If failed, we don't touch the list
 255 // and use the default (alphabetical) order.
 256 void SortBookmarksInIEOrder(
 257     const Importer* importer,
 258     std::vector<ImportedBookmarkEntry>* bookmarks) {
 259   std::map<base::FilePath, uint32> sort_index;
 260   if (!ParseFavoritesOrderInfo(importer, &sort_index))
 261     return;
 262   IEOrderBookmarkComparator compare = {&sort_index};
 263   std::sort(bookmarks->begin(), bookmarks->end(), compare);
 264 }
 265
 266 // Reads an internet shortcut (*.url) |file| and returns a COM object
 267 // representing it.
 268 bool LoadInternetShortcut(
 269     const base::string16& file,
 270     base::win::ScopedComPtr<IUniformResourceLocator>* shortcut) {
 271   base::win::ScopedComPtr<IUniformResourceLocator> url_locator;
 272   if (FAILED(url_locator.CreateInstance(CLSID_InternetShortcut, NULL,
 273                                         CLSCTX_INPROC_SERVER)))
 274     return false;
 275
 276   base::win::ScopedComPtr<IPersistFile> persist_file;
 277   if (FAILED(persist_file.QueryFrom(url_locator)))
 278     return false;
 279
 280   // Loads the Internet Shortcut from persistent storage.
 281   if (FAILED(persist_file->Load(file.c_str(), STGM_READ)))
 282     return false;
 283
 284   std::swap(url_locator, *shortcut);
 285   return true;
 286 }
 287
 288 // Reads the URL stored in the internet shortcut.
 289 GURL ReadURLFromInternetShortcut(IUniformResourceLocator* url_locator) {
 290   base::win::ScopedCoMem<wchar_t> url;
 291   // GetURL can return S_FALSE (FAILED(S_FALSE) is false) when url == NULL.
 292   return (FAILED(url_locator->GetURL(&url)) || !url) ?
 293       GURL() : GURL(base::WideToUTF16(std::wstring(url)));
 294 }
 295
 296 // Reads the URL of the favicon of the internet shortcut.
 297 GURL ReadFaviconURLFromInternetShortcut(IUniformResourceLocator* url_locator) {
 298   base::win::ScopedComPtr<IPropertySetStorage> property_set_storage;
 299   if (FAILED(property_set_storage.QueryFrom(url_locator)))
 300     return GURL();
 301
 302   base::win::ScopedComPtr<IPropertyStorage> property_storage;
 303   if (FAILED(property_set_storage->Open(FMTID_Intshcut, STGM_READ,
 304                                         property_storage.Receive()))) {
 305     return GURL();
 306   }
 307
 308   PROPSPEC properties[] = {{PRSPEC_PROPID, PID_IS_ICONFILE}};
 309   // ReadMultiple takes a non-const array of PROPVARIANTs, but since this code
 310   // only needs an array of size 1: a non-const pointer to |output| is
 311   // equivalent.
 312   base::win::ScopedPropVariant output;
 313   // ReadMultiple can return S_FALSE (FAILED(S_FALSE) is false) when the
 314   // property is not found, in which case output[0].vt is set to VT_EMPTY.
 315   if (FAILED(property_storage->ReadMultiple(1, properties, output.Receive())) ||
 316       output.get().vt != VT_LPWSTR)
 317     return GURL();
 318   return GURL(base::WideToUTF16(output.get().pwszVal));
 319 }
 320
 321 // Reads the favicon imaga data in an NTFS alternate data stream. This is where
 322 // IE7 and above store the data.
 323 bool ReadFaviconDataFromInternetShortcut(const base::string16& file,
 324                                          std::string* data) {
 325   return base::ReadFileToString(
 326       base::FilePath(file + kFaviconStreamName), data);
 327 }
 328
 329 // Reads the favicon imaga data in the Internet cache. IE6 doesn't hold the data
 330 // explicitly, but it might be found in the cache.
 331 bool ReadFaviconDataFromCache(const GURL& favicon_url, std::string* data) {
 332   std::wstring url_wstring(base::UTF8ToWide(favicon_url.spec()));
 333   DWORD info_size = 0;
 334   GetUrlCacheEntryInfoEx(url_wstring.c_str(), NULL, &info_size, NULL, NULL,
 335                          NULL, 0);
 336   if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
 337     return false;
 338
 339   std::vector<char> buf(info_size);
 340   INTERNET_CACHE_ENTRY_INFO* cache =
 341       reinterpret_cast<INTERNET_CACHE_ENTRY_INFO*>(&buf[0]);
 342   if (!GetUrlCacheEntryInfoEx(url_wstring.c_str(), cache, &info_size, NULL,
 343                               NULL, NULL, 0)) {
 344     return false;
 345   }
 346   return base::ReadFileToString(base::FilePath(cache->lpszLocalFileName), data);
 347 }
 348
 349 // Reads the binary image data of favicon of an internet shortcut file |file|.
 350 // |favicon_url| read by ReadFaviconURLFromInternetShortcut is also needed to
 351 // examine the IE cache.
 352 bool ReadReencodedFaviconData(const base::string16& file,
 353                               const GURL& favicon_url,
 354                               std::vector<unsigned char>* data) {
 355   std::string image_data;
 356   if (!ReadFaviconDataFromInternetShortcut(file, &image_data) &&
 357       !ReadFaviconDataFromCache(favicon_url, &image_data)) {
 358     return false;
 359   }
 360
 361   const unsigned char* ptr =
 362       reinterpret_cast<const unsigned char*>(image_data.c_str());
 363   return importer::ReencodeFavicon(ptr, image_data.size(), data);
 364 }
 365
 366 // Loads favicon image data and registers to |favicon_map|.
 367 void UpdateFaviconMap(const base::string16& url_file,
 368                       const GURL& url,
 369                       IUniformResourceLocator* url_locator,
 370                       std::map<GURL, ImportedFaviconUsage>* favicon_map) {
 371   GURL favicon_url = ReadFaviconURLFromInternetShortcut(url_locator);
 372   if (!favicon_url.is_valid())
 373     return;
 374
 375   std::map<GURL, ImportedFaviconUsage>::iterator it =
 376     favicon_map->find(favicon_url);
 377   if (it != favicon_map->end()) {
 378     // Known favicon URL.
 379     it->second.urls.insert(url);
 380   } else {
 381     // New favicon URL. Read the image data and store.
 382     ImportedFaviconUsage usage;
 383     if (ReadReencodedFaviconData(url_file, favicon_url, &usage.png_data)) {
 384       usage.favicon_url = favicon_url;
 385       usage.urls.insert(url);
 386       favicon_map->insert(std::make_pair(favicon_url, usage));
 387     }
 388   }
 389 }
 390
 391 }  // namespace
 392
 393 // static
 394 // {E161255A-37C3-11D2-BCAA-00C04fD929DB}
 395 const GUID IEImporter::kPStoreAutocompleteGUID = {
 396     0xe161255a, 0x37c3, 0x11d2,
 397     { 0xbc, 0xaa, 0x00, 0xc0, 0x4f, 0xd9, 0x29, 0xdb }
 398 };
 399 // {A79029D6-753E-4e27-B807-3D46AB1545DF}
 400 const GUID IEImporter::kUnittestGUID = {
 401     0xa79029d6, 0x753e, 0x4e27,
 402     { 0xb8, 0x7, 0x3d, 0x46, 0xab, 0x15, 0x45, 0xdf }
 403 };
 404
 405 IEImporter::IEImporter() {
 406 }
 407
 408 void IEImporter::StartImport(const importer::SourceProfile& source_profile,
 409                              uint16 items,
 410                              ImporterBridge* bridge) {
 411   bridge_ = bridge;
 412   source_path_ = source_profile.source_path;
 413
 414   bridge_->NotifyStarted();
 415
 416   if ((items & importer::HOME_PAGE) && !cancelled()) {
 417     bridge_->NotifyItemStarted(importer::HOME_PAGE);
 418     ImportHomepage();  // Doesn't have a UI item.
 419     bridge_->NotifyItemEnded(importer::HOME_PAGE);
 420   }
 421   // The order here is important!
 422   if ((items & importer::HISTORY) && !cancelled()) {
 423     bridge_->NotifyItemStarted(importer::HISTORY);
 424     ImportHistory();
 425     bridge_->NotifyItemEnded(importer::HISTORY);
 426   }
 427   if ((items & importer::FAVORITES) && !cancelled()) {
 428     bridge_->NotifyItemStarted(importer::FAVORITES);
 429     ImportFavorites();
 430     bridge_->NotifyItemEnded(importer::FAVORITES);
 431   }
 432   if ((items & importer::SEARCH_ENGINES) && !cancelled()) {
 433     bridge_->NotifyItemStarted(importer::SEARCH_ENGINES);
 434     ImportSearchEngines();
 435     bridge_->NotifyItemEnded(importer::SEARCH_ENGINES);
 436   }
 437   if ((items & importer::PASSWORDS) && !cancelled()) {
 438     bridge_->NotifyItemStarted(importer::PASSWORDS);
 439     // Always import IE6 passwords.
 440     ImportPasswordsIE6();
 441
 442     if (CurrentIEVersion() >= 7)
 443       ImportPasswordsIE7();
 444     bridge_->NotifyItemEnded(importer::PASSWORDS);
 445   }
 446   bridge_->NotifyEnded();
 447 }
 448
 449 IEImporter::~IEImporter() {
 450 }
 451
 452 void IEImporter::ImportFavorites() {
 453   FavoritesInfo info;
 454   if (!GetFavoritesInfo(&info))
 455     return;
 456
 457   BookmarkVector bookmarks;
 458   std::vector<ImportedFaviconUsage> favicons;
 459   ParseFavoritesFolder(info, &bookmarks, &favicons);
 460
 461   if (!bookmarks.empty() && !cancelled()) {
 462     const base::string16& first_folder_name =
 463         l10n_util::GetStringUTF16(IDS_BOOKMARK_GROUP_FROM_IE);
 464     bridge_->AddBookmarks(bookmarks, first_folder_name);
 465   }
 466   if (!favicons.empty() && !cancelled())
 467     bridge_->SetFavicons(favicons);
 468 }
 469
 470 void IEImporter::ImportHistory() {
 471   const std::string kSchemes[] = {url::kHttpScheme,
 472                                   url::kHttpsScheme,
 473                                   url::kFtpScheme,
 474                                   url::kFileScheme};
 475   int total_schemes = arraysize(kSchemes);
 476
 477   base::win::ScopedComPtr<IUrlHistoryStg2> url_history_stg2;
 478   HRESULT result;
 479   result = url_history_stg2.CreateInstance(CLSID_CUrlHistory, NULL,
 480                                            CLSCTX_INPROC_SERVER);
 481   if (FAILED(result))
 482     return;
 483   base::win::ScopedComPtr<IEnumSTATURL> enum_url;
 484   if (SUCCEEDED(result = url_history_stg2->EnumUrls(enum_url.Receive()))) {
 485     std::vector<ImporterURLRow> rows;
 486     STATURL stat_url;
 487     ULONG fetched;
 488     while (!cancelled() &&
 489            (result = enum_url->Next(1, &stat_url, &fetched)) == S_OK) {
 490       base::string16 url_string;
 491       if (stat_url.pwcsUrl) {
 492         url_string = stat_url.pwcsUrl;
 493         CoTaskMemFree(stat_url.pwcsUrl);
 494       }
 495       base::string16 title_string;
 496       if (stat_url.pwcsTitle) {
 497         title_string = stat_url.pwcsTitle;
 498         CoTaskMemFree(stat_url.pwcsTitle);
 499       }
 500
 501       GURL url(url_string);
 502       // Skips the URLs that are invalid or have other schemes.
 503       if (!url.is_valid() ||
 504           (std::find(kSchemes, kSchemes + total_schemes, url.scheme()) ==
 505            kSchemes + total_schemes))
 506         continue;
 507
 508       ImporterURLRow row(url);
 509       row.title = title_string;
 510       row.last_visit = base::Time::FromFileTime(stat_url.ftLastVisited);
 511       if (stat_url.dwFlags == STATURL_QUERYFLAG_TOPLEVEL) {
 512         row.visit_count = 1;
 513         row.hidden = false;
 514       } else {
 515         row.hidden = true;
 516       }
 517
 518       rows.push_back(row);
 519     }
 520
 521     if (!rows.empty() && !cancelled()) {
 522       bridge_->SetHistoryItems(rows, importer::VISIT_SOURCE_IE_IMPORTED);
 523     }
 524   }
 525 }
 526
 527 void IEImporter::ImportPasswordsIE6() {
 528   GUID AutocompleteGUID = kPStoreAutocompleteGUID;
 529   if (!source_path_.empty()) {
 530     // We supply a fake GUID for testting.
 531     AutocompleteGUID = kUnittestGUID;
 532   }
 533
 534   // The PStoreCreateInstance function retrieves an interface pointer
 535   // to a storage provider. But this function has no associated import
 536   // library or header file, we must call it using the LoadLibrary()
 537   // and GetProcAddress() functions.
 538   typedef HRESULT (WINAPI *PStoreCreateFunc)(IPStore**, DWORD, DWORD, DWORD);
 539   HMODULE pstorec_dll = LoadLibrary(L"pstorec.dll");
 540   if (!pstorec_dll)
 541     return;
 542   PStoreCreateFunc PStoreCreateInstance =
 543       (PStoreCreateFunc)GetProcAddress(pstorec_dll, "PStoreCreateInstance");
 544   if (!PStoreCreateInstance) {
 545     FreeLibrary(pstorec_dll);
 546     return;
 547   }
 548
 549   base::win::ScopedComPtr<IPStore, &IID_IPStore> pstore;
 550   HRESULT result = PStoreCreateInstance(pstore.Receive(), 0, 0, 0);
 551   if (result != S_OK) {
 552     FreeLibrary(pstorec_dll);
 553     return;
 554   }
 555
 556   std::vector<AutoCompleteInfo> ac_list;
 557
 558   // Enumerates AutoComplete items in the protected database.
 559   base::win::ScopedComPtr<IEnumPStoreItems, &IID_IEnumPStoreItems> item;
 560   result = pstore->EnumItems(0, &AutocompleteGUID,
 561                              &AutocompleteGUID, 0, item.Receive());
 562   if (result != PST_E_OK) {
 563     pstore.Release();
 564     FreeLibrary(pstorec_dll);
 565     return;
 566   }
 567
 568   wchar_t* item_name;
 569   while (!cancelled() && SUCCEEDED(item->Next(1, &item_name, 0))) {
 570     DWORD length = 0;
 571     unsigned char* buffer = NULL;
 572     result = pstore->ReadItem(0, &AutocompleteGUID, &AutocompleteGUID,
 573                               item_name, &length, &buffer, NULL, 0);
 574     if (SUCCEEDED(result)) {
 575       AutoCompleteInfo ac;
 576       ac.key = item_name;
 577       base::string16 data;
 578       data.insert(0, reinterpret_cast<wchar_t*>(buffer),
 579                   length / sizeof(wchar_t));
 580
 581       // The key name is always ended with ":StringData".
 582       const wchar_t kDataSuffix[] = L":StringData";
 583       size_t i = ac.key.rfind(kDataSuffix);
 584       if (i != base::string16::npos && ac.key.substr(i) == kDataSuffix) {
 585         ac.key.erase(i);
 586         ac.is_url = (ac.key.find(L"://") != base::string16::npos);
 587         ac_list.push_back(ac);
 588         base::SplitString(data, L'\0', &ac_list[ac_list.size() - 1].data);
 589       }
 590       CoTaskMemFree(buffer);
 591     }
 592     CoTaskMemFree(item_name);
 593   }
 594   // Releases them before unload the dll.
 595   item.Release();
 596   pstore.Release();
 597   FreeLibrary(pstorec_dll);
 598
 599   size_t i;
 600   for (i = 0; i < ac_list.size(); i++) {
 601     if (!ac_list[i].is_url || ac_list[i].data.size() < 2)
 602       continue;
 603
 604     GURL url(ac_list[i].key.c_str());
 605     if (!(LowerCaseEqualsASCII(url.scheme(), url::kHttpScheme) ||
 606           LowerCaseEqualsASCII(url.scheme(), url::kHttpsScheme))) {
 607       continue;
 608     }
 609
 610     autofill::PasswordForm form;
 611     GURL::Replacements rp;
 612     rp.ClearUsername();
 613     rp.ClearPassword();
 614     rp.ClearQuery();
 615     rp.ClearRef();
 616     form.origin = url.ReplaceComponents(rp);
 617     form.username_value = ac_list[i].data[0];
 618     form.password_value = ac_list[i].data[1];
 619     form.signon_realm = url.GetOrigin().spec();
 620
 621     // This is not precise, because a scheme of https does not imply a valid
 622     // certificate was presented; however we assign it this way so that if we
 623     // import a password from IE whose scheme is https, we give it the benefit
 624     // of the doubt and DONT auto-fill it unless the form appears under
 625     // valid SSL conditions.
 626     form.ssl_valid = url.SchemeIsSecure();
 627
 628     // Goes through the list to find out the username field
 629     // of the web page.
 630     size_t list_it, item_it;
 631     for (list_it = 0; list_it < ac_list.size(); ++list_it) {
 632       if (ac_list[list_it].is_url)
 633         continue;
 634
 635       for (item_it = 0; item_it < ac_list[list_it].data.size(); ++item_it)
 636         if (ac_list[list_it].data[item_it] == form.username_value) {
 637           form.username_element = ac_list[list_it].key;
 638           break;
 639         }
 640     }
 641
 642     bridge_->SetPasswordForm(form);
 643   }
 644 }
 645
 646 void IEImporter::ImportPasswordsIE7() {
 647   base::string16 key_path(importer::GetIE7PasswordsKey());
 648   base::win::RegKey key(HKEY_CURRENT_USER, key_path.c_str(), KEY_READ);
 649   base::win::RegistryValueIterator reg_iterator(HKEY_CURRENT_USER,
 650                                                 key_path.c_str());
 651   importer::ImporterIE7PasswordInfo password_info;
 652   while (reg_iterator.Valid() && !cancelled()) {
 653     // Get the size of the encrypted data.
 654     DWORD value_len = 0;
 655     key.ReadValue(reg_iterator.Name(), NULL, &value_len, NULL);
 656     if (value_len) {
 657       // Query the encrypted data.
 658       password_info.encrypted_data.resize(value_len);
 659       if (key.ReadValue(reg_iterator.Name(),
 660                         &password_info.encrypted_data.front(),
 661                         &value_len, NULL) == ERROR_SUCCESS) {
 662         password_info.url_hash = reg_iterator.Name();
 663         password_info.date_created = base::Time::Now();
 664
 665         bridge_->AddIE7PasswordInfo(password_info);
 666       }
 667     }
 668
 669     ++reg_iterator;
 670   }
 671 }
 672
 673 void IEImporter::ImportSearchEngines() {
 674   // On IE, search engines are stored in the registry, under:
 675   // Software\Microsoft\Internet Explorer\SearchScopes
 676   // Each key represents a search engine. The URL value contains the URL and
 677   // the DisplayName the name.
 678   typedef std::map<std::string, base::string16> SearchEnginesMap;
 679   SearchEnginesMap search_engines_map;
 680   for (base::win::RegistryKeyIterator key_iter(HKEY_CURRENT_USER,
 681        kSearchScopePath); key_iter.Valid(); ++key_iter) {
 682     base::string16 sub_key_name = kSearchScopePath;
 683     sub_key_name.append(L"\\").append(key_iter.Name());
 684     base::win::RegKey sub_key(HKEY_CURRENT_USER, sub_key_name.c_str(),
 685                               KEY_READ);
 686     base::string16 wide_url;
 687     if ((sub_key.ReadValue(L"URL", &wide_url) != ERROR_SUCCESS) ||
 688         wide_url.empty()) {
 689       VLOG(1) << "No URL for IE search engine at " << key_iter.Name();
 690       continue;
 691     }
 692     // For the name, we try the default value first (as Live Search uses a
 693     // non displayable name in DisplayName, and the readable name under the
 694     // default value).
 695     base::string16 name;
 696     if ((sub_key.ReadValue(NULL, &name) != ERROR_SUCCESS) || name.empty()) {
 697       // Try the displayable name.
 698       if ((sub_key.ReadValue(L"DisplayName", &name) != ERROR_SUCCESS) ||
 699           name.empty()) {
 700         VLOG(1) << "No name for IE search engine at " << key_iter.Name();
 701         continue;
 702       }
 703     }
 704
 705     std::string url(base::WideToUTF8(wide_url));
 706     SearchEnginesMap::iterator t_iter = search_engines_map.find(url);
 707     if (t_iter == search_engines_map.end()) {
 708       // First time we see that URL.
 709       GURL gurl(url);
 710       if (gurl.is_valid()) {
 711         t_iter = search_engines_map.insert(std::make_pair(url, name)).first;
 712       }
 713     }
 714   }
 715   // ProfileWriter::AddKeywords() requires a vector and we have a map.
 716   std::vector<importer::URLKeywordInfo> url_keywords;
 717   for (SearchEnginesMap::iterator i = search_engines_map.begin();
 718        i != search_engines_map.end(); ++i) {
 719     importer::URLKeywordInfo url_keyword_info;
 720     url_keyword_info.url = GURL(i->first);
 721     url_keyword_info.display_name = i->second;
 722     url_keywords.push_back(url_keyword_info);
 723   }
 724   bridge_->SetKeywords(url_keywords, true);
 725 }
 726
 727 void IEImporter::ImportHomepage() {
 728   const wchar_t* kIEHomepage = L"Start Page";
 729   const wchar_t* kIEDefaultHomepage = L"Default_Page_URL";
 730
 731   base::string16 key_path(importer::GetIESettingsKey());
 732
 733   base::win::RegKey key(HKEY_CURRENT_USER, key_path.c_str(), KEY_READ);
 734   base::string16 homepage_url;
 735   if (key.ReadValue(kIEHomepage, &homepage_url) != ERROR_SUCCESS ||
 736       homepage_url.empty())
 737     return;
 738
 739   GURL homepage = GURL(homepage_url);
 740   if (!homepage.is_valid())
 741     return;
 742
 743   // Check to see if this is the default website and skip import.
 744   base::win::RegKey keyDefault(HKEY_LOCAL_MACHINE, key_path.c_str(), KEY_READ);
 745   base::string16 default_homepage_url;
 746   LONG result = keyDefault.ReadValue(kIEDefaultHomepage, &default_homepage_url);
 747   if (result == ERROR_SUCCESS && !default_homepage_url.empty()) {
 748     if (homepage.spec() == GURL(default_homepage_url).spec())
 749       return;
 750   }
 751   bridge_->AddHomePage(homepage);
 752 }
 753
 754 bool IEImporter::GetFavoritesInfo(IEImporter::FavoritesInfo* info) {
 755   if (!source_path_.empty()) {
 756     // Source path exists during testing.
 757     info->path = source_path_;
 758     info->path = info->path.AppendASCII("Favorites");
 759     info->links_folder = L"Links";
 760     return true;
 761   }
 762
 763   // IE stores the favorites in the Favorites under user profile's folder.
 764   wchar_t buffer[MAX_PATH];
 765   if (FAILED(SHGetFolderPath(NULL, CSIDL_FAVORITES, NULL,
 766                              SHGFP_TYPE_CURRENT, buffer)))
 767     return false;
 768   info->path = base::FilePath(buffer);
 769
 770   // There is a Links folder under Favorites folder in Windows Vista, but it
 771   // is not recording in Vista's registry. So in Vista, we assume the Links
 772   // folder is under Favorites folder since it looks like there is not name
 773   // different in every language version of Windows Vista.
 774   if (base::win::GetVersion() < base::win::VERSION_VISTA) {
 775     // The Link folder name is stored in the registry.
 776     DWORD buffer_length = sizeof(buffer);
 777     base::win::RegKey reg_key(HKEY_CURRENT_USER, kIEToolbarKey, KEY_READ);
 778     if (reg_key.ReadValue(L"LinksFolderName", buffer,
 779                           &buffer_length, NULL) != ERROR_SUCCESS)
 780       return false;
 781     info->links_folder = buffer;
 782   } else {
 783     info->links_folder = L"Links";
 784   }
 785
 786   return true;
 787 }
 788
 789 void IEImporter::ParseFavoritesFolder(
 790     const FavoritesInfo& info,
 791     BookmarkVector* bookmarks,
 792     std::vector<ImportedFaviconUsage>* favicons) {
 793   base::FilePath file;
 794   std::vector<base::FilePath::StringType> file_list;
 795   base::FilePath favorites_path(info.path);
 796   // Favorites path length.  Make sure it doesn't include the trailing \.
 797   size_t favorites_path_len =
 798       favorites_path.StripTrailingSeparators().value().size();
 799   base::FileEnumerator file_enumerator(
 800       favorites_path, true, base::FileEnumerator::FILES);
 801   while (!(file = file_enumerator.Next()).value().empty() && !cancelled())
 802     file_list.push_back(file.value());
 803
 804   // Keep the bookmarks in alphabetical order.
 805   std::sort(file_list.begin(), file_list.end());
 806
 807   // Map from favicon URLs to the favicon data (the binary image data and the
 808   // set of bookmark URLs referring to the favicon).
 809   typedef std::map<GURL, ImportedFaviconUsage> FaviconMap;
 810   FaviconMap favicon_map;
 811
 812   for (std::vector<base::FilePath::StringType>::iterator it = file_list.begin();
 813        it != file_list.end(); ++it) {
 814     base::FilePath shortcut(*it);
 815     if (!LowerCaseEqualsASCII(shortcut.Extension(), ".url"))
 816       continue;
 817
 818     // Skip the bookmark with invalid URL.
 819     base::win::ScopedComPtr<IUniformResourceLocator> url_locator;
 820     if (!LoadInternetShortcut(*it, &url_locator))
 821       continue;
 822     GURL url = ReadURLFromInternetShortcut(url_locator);
 823     if (!url.is_valid())
 824       continue;
 825     // Skip default bookmarks. go.microsoft.com redirects to
 826     // search.microsoft.com, and http://go.microsoft.com/fwlink/?LinkId=XXX,
 827     // which URLs IE has as default, to some another sites.
 828     // We expect that users will never themselves create bookmarks having this
 829     // hostname.
 830     if (url.host() == "go.microsoft.com")
 831       continue;
 832     // Read favicon.
 833     UpdateFaviconMap(*it, url, url_locator, &favicon_map);
 834
 835     // Make the relative path from the Favorites folder, without the basename.
 836     // ex. Suppose that the Favorites folder is C:\Users\Foo\Favorites.
 837     //   C:\Users\Foo\Favorites\Foo.url -> ""
 838     //   C:\Users\Foo\Favorites\Links\Bar\Baz.url -> "Links\Bar"
 839     base::FilePath::StringType relative_string =
 840         shortcut.DirName().value().substr(favorites_path_len);
 841     if (!relative_string.empty() &&
 842         base::FilePath::IsSeparator(relative_string[0]))
 843       relative_string = relative_string.substr(1);
 844     base::FilePath relative_path(relative_string);
 845
 846     ImportedBookmarkEntry entry;
 847     // Remove the dot, the file extension, and the directory path.
 848     entry.title = shortcut.RemoveExtension().BaseName().value();
 849     entry.url = url;
 850     entry.creation_time = GetFileCreationTime(*it);
 851     if (!relative_path.empty())
 852       relative_path.GetComponents(&entry.path);
 853
 854     // Add the bookmark.
 855     if (!entry.path.empty() && entry.path[0] == info.links_folder) {
 856       // Bookmarks in the Link folder should be imported to the toolbar.
 857       entry.in_toolbar = true;
 858     }
 859     bookmarks->push_back(entry);
 860   }
 861
 862   // Reflect the menu order in IE.
 863   SortBookmarksInIEOrder(this, bookmarks);
 864
 865   // Record favicon data.
 866   for (FaviconMap::iterator iter = favicon_map.begin();
 867        iter != favicon_map.end(); ++iter)
 868     favicons->push_back(iter->second);
 869 }
 870
 871 int IEImporter::CurrentIEVersion() const {
 872   static int version = -1;
 873   if (version < 0) {
 874     wchar_t buffer[128];
 875     DWORD buffer_length = sizeof(buffer);
 876     base::win::RegKey reg_key(HKEY_LOCAL_MACHINE, kIEVersionKey, KEY_READ);
 877     LONG result = reg_key.ReadValue(L"Version", buffer, &buffer_length, NULL);
 878     version = ((result == ERROR_SUCCESS)? _wtoi(buffer) : 0);
 879   }
 880   return version;
 881 }