toolkit/components/downloads/nsDownloadManager.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/components/downloads/nsDownloadManager.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,3748 @@
     1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "mozilla/DebugOnly.h"
    1.10 +
    1.11 +#include "mozIStorageService.h"
    1.12 +#include "nsIAlertsService.h"
    1.13 +#include "nsIArray.h"
    1.14 +#include "nsIClassInfoImpl.h"
    1.15 +#include "nsIDOMWindow.h"
    1.16 +#include "nsIDownloadHistory.h"
    1.17 +#include "nsIDownloadManagerUI.h"
    1.18 +#include "nsIMIMEService.h"
    1.19 +#include "nsIParentalControlsService.h"
    1.20 +#include "nsIPrefService.h"
    1.21 +#include "nsIPromptService.h"
    1.22 +#include "nsIResumableChannel.h"
    1.23 +#include "nsIWebBrowserPersist.h"
    1.24 +#include "nsIWindowMediator.h"
    1.25 +#include "nsILocalFileWin.h"
    1.26 +#include "nsILoadContext.h"
    1.27 +#include "nsIXULAppInfo.h"
    1.28 +
    1.29 +#include "nsAppDirectoryServiceDefs.h"
    1.30 +#include "nsArrayEnumerator.h"
    1.31 +#include "nsCExternalHandlerService.h"
    1.32 +#include "nsDirectoryServiceDefs.h"
    1.33 +#include "nsDownloadManager.h"
    1.34 +#include "nsNetUtil.h"
    1.35 +#include "nsThreadUtils.h"
    1.36 +
    1.37 +#include "mozStorageCID.h"
    1.38 +#include "nsDocShellCID.h"
    1.39 +#include "nsEmbedCID.h"
    1.40 +#include "nsToolkitCompsCID.h"
    1.41 +
    1.42 +#include "SQLFunctions.h"
    1.43 +
    1.44 +#include "mozilla/Preferences.h"
    1.45 +
    1.46 +#ifdef XP_WIN
    1.47 +#include <shlobj.h>
    1.48 +#include "nsWindowsHelpers.h"
    1.49 +#ifdef DOWNLOAD_SCANNER
    1.50 +#include "nsDownloadScanner.h"
    1.51 +#endif
    1.52 +#endif
    1.53 +
    1.54 +#ifdef XP_MACOSX
    1.55 +#include <CoreFoundation/CoreFoundation.h>
    1.56 +#endif
    1.57 +
    1.58 +#ifdef MOZ_WIDGET_ANDROID
    1.59 +#include "AndroidBridge.h"
    1.60 +using namespace mozilla::widget::android;
    1.61 +#endif
    1.62 +
    1.63 +#ifdef MOZ_WIDGET_GTK
    1.64 +#include <gtk/gtk.h>
    1.65 +#endif
    1.66 +
    1.67 +using namespace mozilla;
    1.68 +using mozilla::downloads::GenerateGUID;
    1.69 +
    1.70 +#define DOWNLOAD_MANAGER_BUNDLE "chrome://mozapps/locale/downloads/downloads.properties"
    1.71 +#define DOWNLOAD_MANAGER_ALERT_ICON "chrome://mozapps/skin/downloads/downloadIcon.png"
    1.72 +#define PREF_BD_USEJSTRANSFER "browser.download.useJSTransfer"
    1.73 +#define PREF_BDM_SHOWALERTONCOMPLETE "browser.download.manager.showAlertOnComplete"
    1.74 +#define PREF_BDM_SHOWALERTINTERVAL "browser.download.manager.showAlertInterval"
    1.75 +#define PREF_BDM_RETENTION "browser.download.manager.retention"
    1.76 +#define PREF_BDM_QUITBEHAVIOR "browser.download.manager.quitBehavior"
    1.77 +#define PREF_BDM_ADDTORECENTDOCS "browser.download.manager.addToRecentDocs"
    1.78 +#define PREF_BDM_SCANWHENDONE "browser.download.manager.scanWhenDone"
    1.79 +#define PREF_BDM_RESUMEONWAKEDELAY "browser.download.manager.resumeOnWakeDelay"
    1.80 +#define PREF_BH_DELETETEMPFILEONEXIT "browser.helperApps.deleteTempFileOnExit"
    1.81 +
    1.82 +static const int64_t gUpdateInterval = 400 * PR_USEC_PER_MSEC;
    1.83 +
    1.84 +#define DM_SCHEMA_VERSION      9
    1.85 +#define DM_DB_NAME             NS_LITERAL_STRING("downloads.sqlite")
    1.86 +#define DM_DB_CORRUPT_FILENAME NS_LITERAL_STRING("downloads.sqlite.corrupt")
    1.87 +
    1.88 +#define NS_SYSTEMINFO_CONTRACTID "@mozilla.org/system-info;1"
    1.89 +
    1.90 +////////////////////////////////////////////////////////////////////////////////
    1.91 +//// nsDownloadManager
    1.92 +
    1.93 +NS_IMPL_ISUPPORTS(
    1.94 +  nsDownloadManager
    1.95 +, nsIDownloadManager
    1.96 +, nsINavHistoryObserver
    1.97 +, nsIObserver
    1.98 +, nsISupportsWeakReference
    1.99 +)
   1.100 +
   1.101 +nsDownloadManager *nsDownloadManager::gDownloadManagerService = nullptr;
   1.102 +
   1.103 +nsDownloadManager *
   1.104 +nsDownloadManager::GetSingleton()
   1.105 +{
   1.106 +  if (gDownloadManagerService) {
   1.107 +    NS_ADDREF(gDownloadManagerService);
   1.108 +    return gDownloadManagerService;
   1.109 +  }
   1.110 +
   1.111 +  gDownloadManagerService = new nsDownloadManager();
   1.112 +  if (gDownloadManagerService) {
   1.113 +#if defined(MOZ_WIDGET_GTK)
   1.114 +    g_type_init();
   1.115 +#endif
   1.116 +    NS_ADDREF(gDownloadManagerService);
   1.117 +    if (NS_FAILED(gDownloadManagerService->Init()))
   1.118 +      NS_RELEASE(gDownloadManagerService);
   1.119 +  }
   1.120 +
   1.121 +  return gDownloadManagerService;
   1.122 +}
   1.123 +
   1.124 +nsDownloadManager::~nsDownloadManager()
   1.125 +{
   1.126 +#ifdef DOWNLOAD_SCANNER
   1.127 +  if (mScanner) {
   1.128 +    delete mScanner;
   1.129 +    mScanner = nullptr;
   1.130 +  }
   1.131 +#endif
   1.132 +  gDownloadManagerService = nullptr;
   1.133 +}
   1.134 +
   1.135 +nsresult
   1.136 +nsDownloadManager::ResumeRetry(nsDownload *aDl)
   1.137 +{
   1.138 +  // Keep a reference in case we need to cancel the download
   1.139 +  nsRefPtr<nsDownload> dl = aDl;
   1.140 +
   1.141 +  // Try to resume the active download
   1.142 +  nsresult rv = dl->Resume();
   1.143 +
   1.144 +  // If not, try to retry the download
   1.145 +  if (NS_FAILED(rv)) {
   1.146 +    // First cancel the download so it's no longer active
   1.147 +    rv = dl->Cancel();
   1.148 +
   1.149 +    // Then retry it
   1.150 +    if (NS_SUCCEEDED(rv))
   1.151 +      rv = dl->Retry();
   1.152 +  }
   1.153 +
   1.154 +  return rv;
   1.155 +}
   1.156 +
   1.157 +nsresult
   1.158 +nsDownloadManager::PauseAllDownloads(bool aSetResume)
   1.159 +{
   1.160 +  nsresult rv = PauseAllDownloads(mCurrentDownloads, aSetResume);
   1.161 +  nsresult rv2 = PauseAllDownloads(mCurrentPrivateDownloads, aSetResume);
   1.162 +  NS_ENSURE_SUCCESS(rv, rv);
   1.163 +  NS_ENSURE_SUCCESS(rv2, rv2);
   1.164 +  return NS_OK;
   1.165 +}
   1.166 +
   1.167 +nsresult
   1.168 +nsDownloadManager::PauseAllDownloads(nsCOMArray<nsDownload>& aDownloads, bool aSetResume)
   1.169 +{
   1.170 +  nsresult retVal = NS_OK;
   1.171 +  for (int32_t i = aDownloads.Count() - 1; i >= 0; --i) {
   1.172 +    nsRefPtr<nsDownload> dl = aDownloads[i];
   1.173 +
   1.174 +    // Only pause things that need to be paused
   1.175 +    if (!dl->IsPaused()) {
   1.176 +      // Set auto-resume before pausing so that it gets into the DB
   1.177 +      dl->mAutoResume = aSetResume ? nsDownload::AUTO_RESUME :
   1.178 +                                     nsDownload::DONT_RESUME;
   1.179 +
   1.180 +      // Try to pause the download but don't bail now if we fail
   1.181 +      nsresult rv = dl->Pause();
   1.182 +      if (NS_FAILED(rv))
   1.183 +        retVal = rv;
   1.184 +    }
   1.185 +  }
   1.186 +
   1.187 +  return retVal;
   1.188 +}
   1.189 +
   1.190 +nsresult
   1.191 +nsDownloadManager::ResumeAllDownloads(bool aResumeAll)
   1.192 +{
   1.193 +  nsresult rv = ResumeAllDownloads(mCurrentDownloads, aResumeAll);
   1.194 +  nsresult rv2 = ResumeAllDownloads(mCurrentPrivateDownloads, aResumeAll);
   1.195 +  NS_ENSURE_SUCCESS(rv, rv);
   1.196 +  NS_ENSURE_SUCCESS(rv2, rv2);
   1.197 +  return NS_OK;
   1.198 +}
   1.199 +
   1.200 +nsresult
   1.201 +nsDownloadManager::ResumeAllDownloads(nsCOMArray<nsDownload>& aDownloads, bool aResumeAll)
   1.202 +{
   1.203 +  nsresult retVal = NS_OK;
   1.204 +  for (int32_t i = aDownloads.Count() - 1; i >= 0; --i) {
   1.205 +    nsRefPtr<nsDownload> dl = aDownloads[i];
   1.206 +
   1.207 +    // If aResumeAll is true, then resume everything; otherwise, check if the
   1.208 +    // download should auto-resume
   1.209 +    if (aResumeAll || dl->ShouldAutoResume()) {
   1.210 +      // Reset auto-resume before retrying so that it gets into the DB through
   1.211 +      // ResumeRetry's eventual call to SetState. We clear the value now so we
   1.212 +      // don't accidentally query completed downloads that were previously
   1.213 +      // auto-resumed (and try to resume them).
   1.214 +      dl->mAutoResume = nsDownload::DONT_RESUME;
   1.215 +
   1.216 +      // Try to resume/retry the download but don't bail now if we fail
   1.217 +      nsresult rv = ResumeRetry(dl);
   1.218 +      if (NS_FAILED(rv))
   1.219 +        retVal = rv;
   1.220 +    }
   1.221 +  }
   1.222 +
   1.223 +  return retVal;
   1.224 +}
   1.225 +
   1.226 +nsresult
   1.227 +nsDownloadManager::RemoveAllDownloads()
   1.228 +{
   1.229 +  nsresult rv = RemoveAllDownloads(mCurrentDownloads);
   1.230 +  nsresult rv2 = RemoveAllDownloads(mCurrentPrivateDownloads);
   1.231 +  NS_ENSURE_SUCCESS(rv, rv);
   1.232 +  NS_ENSURE_SUCCESS(rv2, rv2);
   1.233 +  return NS_OK;
   1.234 +}
   1.235 +
   1.236 +nsresult
   1.237 +nsDownloadManager::RemoveAllDownloads(nsCOMArray<nsDownload>& aDownloads)
   1.238 +{
   1.239 +  nsresult rv = NS_OK;
   1.240 +  for (int32_t i = aDownloads.Count() - 1; i >= 0; --i) {
   1.241 +    nsRefPtr<nsDownload> dl = aDownloads[0];
   1.242 +
   1.243 +    nsresult result = NS_OK;
   1.244 +    if (!dl->mPrivate && dl->IsPaused() && GetQuitBehavior() != QUIT_AND_CANCEL)
   1.245 +      aDownloads.RemoveObject(dl);
   1.246 +    else
   1.247 +      result = dl->Cancel();
   1.248 +
   1.249 +    // Track the failure, but don't miss out on other downloads
   1.250 +    if (NS_FAILED(result))
   1.251 +      rv = result;
   1.252 +  }
   1.253 +
   1.254 +  return rv;
   1.255 +}
   1.256 +
   1.257 +nsresult
   1.258 +nsDownloadManager::RemoveDownloadsForURI(mozIStorageStatement* aStatement, nsIURI *aURI)
   1.259 +{
   1.260 +  mozStorageStatementScoper scope(aStatement);
   1.261 +
   1.262 +  nsAutoCString source;
   1.263 +  nsresult rv = aURI->GetSpec(source);
   1.264 +  NS_ENSURE_SUCCESS(rv, rv);
   1.265 +
   1.266 +  rv = aStatement->BindUTF8StringByName(
   1.267 +    NS_LITERAL_CSTRING("source"), source);
   1.268 +  NS_ENSURE_SUCCESS(rv, rv);
   1.269 +
   1.270 +  bool hasMore = false;
   1.271 +  nsAutoTArray<nsCString, 4> downloads;
   1.272 +  // Get all the downloads that match the provided URI
   1.273 +  while (NS_SUCCEEDED(aStatement->ExecuteStep(&hasMore)) &&
   1.274 +         hasMore) {
   1.275 +    nsAutoCString downloadGuid;
   1.276 +    rv = aStatement->GetUTF8String(0, downloadGuid);
   1.277 +    NS_ENSURE_SUCCESS(rv, rv);
   1.278 +
   1.279 +    downloads.AppendElement(downloadGuid);
   1.280 +  }
   1.281 +
   1.282 +  // Remove each download ignoring any failure so we reach other downloads
   1.283 +  for (int32_t i = downloads.Length(); --i >= 0; )
   1.284 +    (void)RemoveDownload(downloads[i]);
   1.285 +
   1.286 +  return NS_OK;
   1.287 +}
   1.288 +
   1.289 +void // static
   1.290 +nsDownloadManager::ResumeOnWakeCallback(nsITimer *aTimer, void *aClosure)
   1.291 +{
   1.292 +  // Resume the downloads that were set to autoResume
   1.293 +  nsDownloadManager *dlMgr = static_cast<nsDownloadManager *>(aClosure);
   1.294 +  (void)dlMgr->ResumeAllDownloads(false);
   1.295 +}
   1.296 +
   1.297 +already_AddRefed<mozIStorageConnection>
   1.298 +nsDownloadManager::GetFileDBConnection(nsIFile *dbFile) const
   1.299 +{
   1.300 +  NS_ASSERTION(dbFile, "GetFileDBConnection called with an invalid nsIFile");
   1.301 +
   1.302 +  nsCOMPtr<mozIStorageService> storage =
   1.303 +    do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
   1.304 +  NS_ENSURE_TRUE(storage, nullptr);
   1.305 +
   1.306 +  nsCOMPtr<mozIStorageConnection> conn;
   1.307 +  nsresult rv = storage->OpenDatabase(dbFile, getter_AddRefs(conn));
   1.308 +  if (rv == NS_ERROR_FILE_CORRUPTED) {
   1.309 +    // delete and try again, since we don't care so much about losing a user's
   1.310 +    // download history
   1.311 +    rv = dbFile->Remove(false);
   1.312 +    NS_ENSURE_SUCCESS(rv, nullptr);
   1.313 +    rv = storage->OpenDatabase(dbFile, getter_AddRefs(conn));
   1.314 +  }
   1.315 +  NS_ENSURE_SUCCESS(rv, nullptr);
   1.316 +
   1.317 +  return conn.forget();
   1.318 +}
   1.319 +
   1.320 +already_AddRefed<mozIStorageConnection>
   1.321 +nsDownloadManager::GetPrivateDBConnection() const
   1.322 +{
   1.323 +  nsCOMPtr<mozIStorageService> storage =
   1.324 +    do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
   1.325 +  NS_ENSURE_TRUE(storage, nullptr);
   1.326 +
   1.327 +  nsCOMPtr<mozIStorageConnection> conn;
   1.328 +  nsresult rv = storage->OpenSpecialDatabase("memory", getter_AddRefs(conn));
   1.329 +  NS_ENSURE_SUCCESS(rv, nullptr);
   1.330 +
   1.331 +  return conn.forget();
   1.332 +}
   1.333 +
   1.334 +void
   1.335 +nsDownloadManager::CloseAllDBs()
   1.336 +{
   1.337 +  CloseDB(mDBConn, mUpdateDownloadStatement, mGetIdsForURIStatement);
   1.338 +  CloseDB(mPrivateDBConn, mUpdatePrivateDownloadStatement, mGetPrivateIdsForURIStatement);
   1.339 +}
   1.340 +
   1.341 +void
   1.342 +nsDownloadManager::CloseDB(mozIStorageConnection* aDBConn,
   1.343 +                           mozIStorageStatement* aUpdateStmt,
   1.344 +                           mozIStorageStatement* aGetIdsStmt)
   1.345 +{
   1.346 +  DebugOnly<nsresult> rv = aGetIdsStmt->Finalize();
   1.347 +  MOZ_ASSERT(NS_SUCCEEDED(rv));
   1.348 +  rv = aUpdateStmt->Finalize();
   1.349 +  MOZ_ASSERT(NS_SUCCEEDED(rv));
   1.350 +  rv = aDBConn->AsyncClose(nullptr);
   1.351 +  MOZ_ASSERT(NS_SUCCEEDED(rv));
   1.352 +}
   1.353 +
   1.354 +static nsresult
   1.355 +InitSQLFunctions(mozIStorageConnection* aDBConn)
   1.356 +{
   1.357 +  nsresult rv = mozilla::downloads::GenerateGUIDFunction::create(aDBConn);
   1.358 +  NS_ENSURE_SUCCESS(rv, rv);
   1.359 +  return NS_OK;
   1.360 +}
   1.361 +
   1.362 +nsresult
   1.363 +nsDownloadManager::InitPrivateDB()
   1.364 +{
   1.365 +  bool ready = false;
   1.366 +  if (mPrivateDBConn && NS_SUCCEEDED(mPrivateDBConn->GetConnectionReady(&ready)) && ready)
   1.367 +    CloseDB(mPrivateDBConn, mUpdatePrivateDownloadStatement, mGetPrivateIdsForURIStatement);
   1.368 +  mPrivateDBConn = GetPrivateDBConnection();
   1.369 +  if (!mPrivateDBConn)
   1.370 +    return NS_ERROR_NOT_AVAILABLE;
   1.371 +
   1.372 +  nsresult rv = InitSQLFunctions(mPrivateDBConn);
   1.373 +  NS_ENSURE_SUCCESS(rv, rv);
   1.374 +
   1.375 +  rv = CreateTable(mPrivateDBConn);
   1.376 +  NS_ENSURE_SUCCESS(rv, rv);
   1.377 +
   1.378 +  rv = InitStatements(mPrivateDBConn, getter_AddRefs(mUpdatePrivateDownloadStatement),
   1.379 +                      getter_AddRefs(mGetPrivateIdsForURIStatement));
   1.380 +  NS_ENSURE_SUCCESS(rv, rv);
   1.381 +  return NS_OK;
   1.382 +}
   1.383 +
   1.384 +nsresult
   1.385 +nsDownloadManager::InitFileDB()
   1.386 +{
   1.387 +  nsresult rv;
   1.388 +
   1.389 +  nsCOMPtr<nsIFile> dbFile;
   1.390 +  rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
   1.391 +                              getter_AddRefs(dbFile));
   1.392 +  NS_ENSURE_SUCCESS(rv, rv);
   1.393 +  rv = dbFile->Append(DM_DB_NAME);
   1.394 +  NS_ENSURE_SUCCESS(rv, rv);
   1.395 +
   1.396 +  bool ready = false;
   1.397 +  if (mDBConn && NS_SUCCEEDED(mDBConn->GetConnectionReady(&ready)) && ready)
   1.398 +    CloseDB(mDBConn, mUpdateDownloadStatement, mGetIdsForURIStatement);
   1.399 +  mDBConn = GetFileDBConnection(dbFile);
   1.400 +  NS_ENSURE_TRUE(mDBConn, NS_ERROR_NOT_AVAILABLE);
   1.401 +
   1.402 +  rv = InitSQLFunctions(mDBConn);
   1.403 +  NS_ENSURE_SUCCESS(rv, rv);
   1.404 +
   1.405 +  bool tableExists;
   1.406 +  rv = mDBConn->TableExists(NS_LITERAL_CSTRING("moz_downloads"), &tableExists);
   1.407 +  NS_ENSURE_SUCCESS(rv, rv);
   1.408 +
   1.409 +  if (!tableExists) {
   1.410 +    rv = CreateTable(mDBConn);
   1.411 +    NS_ENSURE_SUCCESS(rv, rv);
   1.412 +
   1.413 +    // We're done with the initialization now and can skip the remaining
   1.414 +    // upgrading logic.
   1.415 +    return NS_OK;
   1.416 +  }
   1.417 +
   1.418 +  // Checking the database schema now
   1.419 +  int32_t schemaVersion;
   1.420 +  rv = mDBConn->GetSchemaVersion(&schemaVersion);
   1.421 +  NS_ENSURE_SUCCESS(rv, rv);
   1.422 +
   1.423 +  // Changing the database?  Be sure to do these two things!
   1.424 +  // 1) Increment DM_SCHEMA_VERSION
   1.425 +  // 2) Implement the proper downgrade/upgrade code for the current version
   1.426 +
   1.427 +  switch (schemaVersion) {
   1.428 +  // Upgrading
   1.429 +  // Every time you increment the database schema, you need to implement
   1.430 +  // the upgrading code from the previous version to the new one.
   1.431 +  // Also, don't forget to make a unit test to test your upgrading code!
   1.432 +  case 1: // Drop a column (iconURL) from the database (bug 385875)
   1.433 +    {
   1.434 +      // Safely wrap this in a transaction so we don't hose the whole DB
   1.435 +      mozStorageTransaction safeTransaction(mDBConn, true);
   1.436 +
   1.437 +      // Create a temporary table that will store the existing records
   1.438 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.439 +        "CREATE TEMPORARY TABLE moz_downloads_backup ("
   1.440 +          "id INTEGER PRIMARY KEY, "
   1.441 +          "name TEXT, "
   1.442 +          "source TEXT, "
   1.443 +          "target TEXT, "
   1.444 +          "startTime INTEGER, "
   1.445 +          "endTime INTEGER, "
   1.446 +          "state INTEGER"
   1.447 +        ")"));
   1.448 +      NS_ENSURE_SUCCESS(rv, rv);
   1.449 +
   1.450 +      // Insert into a temporary table
   1.451 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.452 +        "INSERT INTO moz_downloads_backup "
   1.453 +        "SELECT id, name, source, target, startTime, endTime, state "
   1.454 +        "FROM moz_downloads"));
   1.455 +      NS_ENSURE_SUCCESS(rv, rv);
   1.456 +
   1.457 +      // Drop the old table
   1.458 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.459 +        "DROP TABLE moz_downloads"));
   1.460 +      NS_ENSURE_SUCCESS(rv, rv);
   1.461 +
   1.462 +      // Now recreate it with this schema version
   1.463 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.464 +        "CREATE TABLE moz_downloads ("
   1.465 +          "id INTEGER PRIMARY KEY, "
   1.466 +          "name TEXT, "
   1.467 +          "source TEXT, "
   1.468 +          "target TEXT, "
   1.469 +          "startTime INTEGER, "
   1.470 +          "endTime INTEGER, "
   1.471 +          "state INTEGER"
   1.472 +        ")"));
   1.473 +      NS_ENSURE_SUCCESS(rv, rv);
   1.474 +
   1.475 +      // Insert the data back into it
   1.476 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.477 +        "INSERT INTO moz_downloads "
   1.478 +        "SELECT id, name, source, target, startTime, endTime, state "
   1.479 +        "FROM moz_downloads_backup"));
   1.480 +      NS_ENSURE_SUCCESS(rv, rv);
   1.481 +
   1.482 +      // And drop our temporary table
   1.483 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.484 +        "DROP TABLE moz_downloads_backup"));
   1.485 +      NS_ENSURE_SUCCESS(rv, rv);
   1.486 +
   1.487 +      // Finally, update the schemaVersion variable and the database schema
   1.488 +      schemaVersion = 2;
   1.489 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.490 +      NS_ENSURE_SUCCESS(rv, rv);
   1.491 +    }
   1.492 +    // Fallthrough to the next upgrade
   1.493 +
   1.494 +  case 2: // Add referrer column to the database
   1.495 +    {
   1.496 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.497 +        "ALTER TABLE moz_downloads "
   1.498 +        "ADD COLUMN referrer TEXT"));
   1.499 +      NS_ENSURE_SUCCESS(rv, rv);
   1.500 +
   1.501 +      // Finally, update the schemaVersion variable and the database schema
   1.502 +      schemaVersion = 3;
   1.503 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.504 +      NS_ENSURE_SUCCESS(rv, rv);
   1.505 +    }
   1.506 +    // Fallthrough to the next upgrade
   1.507 +
   1.508 +  case 3: // This version adds a column to the database (entityID)
   1.509 +    {
   1.510 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.511 +        "ALTER TABLE moz_downloads "
   1.512 +        "ADD COLUMN entityID TEXT"));
   1.513 +      NS_ENSURE_SUCCESS(rv, rv);
   1.514 +
   1.515 +      // Finally, update the schemaVersion variable and the database schema
   1.516 +      schemaVersion = 4;
   1.517 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.518 +      NS_ENSURE_SUCCESS(rv, rv);
   1.519 +    }
   1.520 +    // Fallthrough to the next upgrade
   1.521 +
   1.522 +  case 4: // This version adds a column to the database (tempPath)
   1.523 +    {
   1.524 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.525 +        "ALTER TABLE moz_downloads "
   1.526 +        "ADD COLUMN tempPath TEXT"));
   1.527 +      NS_ENSURE_SUCCESS(rv, rv);
   1.528 +
   1.529 +      // Finally, update the schemaVersion variable and the database schema
   1.530 +      schemaVersion = 5;
   1.531 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.532 +      NS_ENSURE_SUCCESS(rv, rv);
   1.533 +    }
   1.534 +    // Fallthrough to the next upgrade
   1.535 +
   1.536 +  case 5: // This version adds two columns for tracking transfer progress
   1.537 +    {
   1.538 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.539 +        "ALTER TABLE moz_downloads "
   1.540 +        "ADD COLUMN currBytes INTEGER NOT NULL DEFAULT 0"));
   1.541 +      NS_ENSURE_SUCCESS(rv, rv);
   1.542 +
   1.543 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.544 +        "ALTER TABLE moz_downloads "
   1.545 +        "ADD COLUMN maxBytes INTEGER NOT NULL DEFAULT -1"));
   1.546 +      NS_ENSURE_SUCCESS(rv, rv);
   1.547 +
   1.548 +      // Finally, update the schemaVersion variable and the database schema
   1.549 +      schemaVersion = 6;
   1.550 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.551 +      NS_ENSURE_SUCCESS(rv, rv);
   1.552 +    }
   1.553 +    // Fallthrough to the next upgrade
   1.554 +
   1.555 +  case 6: // This version adds three columns to DB (MIME type related info)
   1.556 +    {
   1.557 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.558 +        "ALTER TABLE moz_downloads "
   1.559 +        "ADD COLUMN mimeType TEXT"));
   1.560 +      NS_ENSURE_SUCCESS(rv, rv);
   1.561 +
   1.562 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.563 +        "ALTER TABLE moz_downloads "
   1.564 +        "ADD COLUMN preferredApplication TEXT"));
   1.565 +      NS_ENSURE_SUCCESS(rv, rv);
   1.566 +
   1.567 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.568 +        "ALTER TABLE moz_downloads "
   1.569 +        "ADD COLUMN preferredAction INTEGER NOT NULL DEFAULT 0"));
   1.570 +      NS_ENSURE_SUCCESS(rv, rv);
   1.571 +
   1.572 +      // Finally, update the schemaVersion variable and the database schema
   1.573 +      schemaVersion = 7;
   1.574 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.575 +      NS_ENSURE_SUCCESS(rv, rv);
   1.576 +    }
   1.577 +    // Fallthrough to next upgrade
   1.578 +
   1.579 +  case 7: // This version adds a column to remember to auto-resume downloads
   1.580 +    {
   1.581 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.582 +        "ALTER TABLE moz_downloads "
   1.583 +        "ADD COLUMN autoResume INTEGER NOT NULL DEFAULT 0"));
   1.584 +      NS_ENSURE_SUCCESS(rv, rv);
   1.585 +
   1.586 +      // Finally, update the schemaVersion variable and the database schema
   1.587 +      schemaVersion = 8;
   1.588 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.589 +      NS_ENSURE_SUCCESS(rv, rv);
   1.590 +    }
   1.591 +    // Fallthrough to the next upgrade
   1.592 +
   1.593 +    // Warning: schema versions >=8 must take into account that they can
   1.594 +    // be operating on schemas from unknown, future versions that have
   1.595 +    // been downgraded. Operations such as adding columns may fail,
   1.596 +    // since the column may already exist.
   1.597 +
   1.598 +  case 8: // This version adds a column for GUIDs
   1.599 +    {
   1.600 +      bool exists;
   1.601 +      rv = mDBConn->IndexExists(NS_LITERAL_CSTRING("moz_downloads_guid_uniqueindex"),
   1.602 +                                &exists);
   1.603 +      NS_ENSURE_SUCCESS(rv, rv);
   1.604 +      if (!exists) {
   1.605 +        rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.606 +          "ALTER TABLE moz_downloads ADD COLUMN guid TEXT"));
   1.607 +        NS_ENSURE_SUCCESS(rv, rv);
   1.608 +        rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.609 +          "CREATE UNIQUE INDEX moz_downloads_guid_uniqueindex ON moz_downloads (guid)"));
   1.610 +        NS_ENSURE_SUCCESS(rv, rv);
   1.611 +      }
   1.612 +
   1.613 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.614 +        "UPDATE moz_downloads SET guid = GENERATE_GUID() WHERE guid ISNULL"));
   1.615 +      NS_ENSURE_SUCCESS(rv, rv);
   1.616 +
   1.617 +      // Finally, update the database schema
   1.618 +      schemaVersion = 9;
   1.619 +      rv = mDBConn->SetSchemaVersion(schemaVersion);
   1.620 +      NS_ENSURE_SUCCESS(rv, rv);
   1.621 +    }
   1.622 +    // Fallthrough to the next upgrade
   1.623 +
   1.624 +  // Extra sanity checking for developers
   1.625 +#ifndef DEBUG
   1.626 +  case DM_SCHEMA_VERSION:
   1.627 +#endif
   1.628 +    break;
   1.629 +
   1.630 +  case 0:
   1.631 +    {
   1.632 +      NS_WARNING("Could not get download database's schema version!");
   1.633 +
   1.634 +      // The table may still be usable - someone may have just messed with the
   1.635 +      // schema version, so let's just treat this like a downgrade and verify
   1.636 +      // that the needed columns are there.  If they aren't there, we'll drop
   1.637 +      // the table anyway.
   1.638 +      rv = mDBConn->SetSchemaVersion(DM_SCHEMA_VERSION);
   1.639 +      NS_ENSURE_SUCCESS(rv, rv);
   1.640 +    }
   1.641 +    // Fallthrough to downgrade check
   1.642 +
   1.643 +  // Downgrading
   1.644 +  // If columns have been added to the table, we can still use the ones we
   1.645 +  // understand safely.  If columns have been deleted or alterd, we just
   1.646 +  // drop the table and start from scratch.  If you change how a column
   1.647 +  // should be interpreted, make sure you also change its name so this
   1.648 +  // check will catch it.
   1.649 +  default:
   1.650 +    {
   1.651 +      nsCOMPtr<mozIStorageStatement> stmt;
   1.652 +      rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
   1.653 +        "SELECT id, name, source, target, tempPath, startTime, endTime, state, "
   1.654 +               "referrer, entityID, currBytes, maxBytes, mimeType, "
   1.655 +               "preferredApplication, preferredAction, autoResume, guid "
   1.656 +        "FROM moz_downloads"), getter_AddRefs(stmt));
   1.657 +      if (NS_SUCCEEDED(rv)) {
   1.658 +        // We have a database that contains all of the elements that make up
   1.659 +        // the latest known schema. Reset the version to force an upgrade
   1.660 +        // path if this downgraded database is used in a later version.
   1.661 +        mDBConn->SetSchemaVersion(DM_SCHEMA_VERSION);
   1.662 +        break;
   1.663 +      }
   1.664 +
   1.665 +      // if the statement fails, that means all the columns were not there.
   1.666 +      // First we backup the database
   1.667 +      nsCOMPtr<mozIStorageService> storage =
   1.668 +        do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
   1.669 +      NS_ENSURE_TRUE(storage, NS_ERROR_NOT_AVAILABLE);
   1.670 +      nsCOMPtr<nsIFile> backup;
   1.671 +      rv = storage->BackupDatabaseFile(dbFile, DM_DB_CORRUPT_FILENAME, nullptr,
   1.672 +                                       getter_AddRefs(backup));
   1.673 +      NS_ENSURE_SUCCESS(rv, rv);
   1.674 +
   1.675 +      // Then we dump it
   1.676 +      rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.677 +        "DROP TABLE moz_downloads"));
   1.678 +      NS_ENSURE_SUCCESS(rv, rv);
   1.679 +
   1.680 +      rv = CreateTable(mDBConn);
   1.681 +      NS_ENSURE_SUCCESS(rv, rv);
   1.682 +    }
   1.683 +    break;
   1.684 +  }
   1.685 +
   1.686 +  return NS_OK;
   1.687 +}
   1.688 +
   1.689 +nsresult
   1.690 +nsDownloadManager::CreateTable(mozIStorageConnection* aDBConn)
   1.691 +{
   1.692 +  nsresult rv = aDBConn->SetSchemaVersion(DM_SCHEMA_VERSION);
   1.693 +  if (NS_FAILED(rv)) return rv;
   1.694 +
   1.695 +  rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.696 +    "CREATE TABLE moz_downloads ("
   1.697 +      "id INTEGER PRIMARY KEY, "
   1.698 +      "name TEXT, "
   1.699 +      "source TEXT, "
   1.700 +      "target TEXT, "
   1.701 +      "tempPath TEXT, "
   1.702 +      "startTime INTEGER, "
   1.703 +      "endTime INTEGER, "
   1.704 +      "state INTEGER, "
   1.705 +      "referrer TEXT, "
   1.706 +      "entityID TEXT, "
   1.707 +      "currBytes INTEGER NOT NULL DEFAULT 0, "
   1.708 +      "maxBytes INTEGER NOT NULL DEFAULT -1, "
   1.709 +      "mimeType TEXT, "
   1.710 +      "preferredApplication TEXT, "
   1.711 +      "preferredAction INTEGER NOT NULL DEFAULT 0, "
   1.712 +      "autoResume INTEGER NOT NULL DEFAULT 0, "
   1.713 +      "guid TEXT"
   1.714 +    ")"));
   1.715 +  if (NS_FAILED(rv)) return rv;
   1.716 +
   1.717 +  rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
   1.718 +    "CREATE UNIQUE INDEX moz_downloads_guid_uniqueindex "
   1.719 +      "ON moz_downloads(guid)"));
   1.720 +  return rv;
   1.721 +}
   1.722 +
   1.723 +nsresult
   1.724 +nsDownloadManager::RestoreDatabaseState()
   1.725 +{
   1.726 +  // Restore downloads that were in a scanning state.  We can assume that they
   1.727 +  // have been dealt with by the virus scanner
   1.728 +  nsCOMPtr<mozIStorageStatement> stmt;
   1.729 +  nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
   1.730 +    "UPDATE moz_downloads "
   1.731 +    "SET state = :state "
   1.732 +    "WHERE state = :state_cond"), getter_AddRefs(stmt));
   1.733 +  NS_ENSURE_SUCCESS(rv, rv);
   1.734 +
   1.735 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_FINISHED);
   1.736 +  NS_ENSURE_SUCCESS(rv, rv);
   1.737 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state_cond"), nsIDownloadManager::DOWNLOAD_SCANNING);
   1.738 +  NS_ENSURE_SUCCESS(rv, rv);
   1.739 +
   1.740 +  rv = stmt->Execute();
   1.741 +  NS_ENSURE_SUCCESS(rv, rv);
   1.742 +
   1.743 +  // Convert supposedly-active downloads into downloads that should auto-resume
   1.744 +  rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
   1.745 +    "UPDATE moz_downloads "
   1.746 +    "SET autoResume = :autoResume "
   1.747 +    "WHERE state = :notStarted "
   1.748 +      "OR state = :queued "
   1.749 +      "OR state = :downloading"), getter_AddRefs(stmt));
   1.750 +  NS_ENSURE_SUCCESS(rv, rv);
   1.751 +
   1.752 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), nsDownload::AUTO_RESUME);
   1.753 +  NS_ENSURE_SUCCESS(rv, rv);
   1.754 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("notStarted"), nsIDownloadManager::DOWNLOAD_NOTSTARTED);
   1.755 +  NS_ENSURE_SUCCESS(rv, rv);
   1.756 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("queued"), nsIDownloadManager::DOWNLOAD_QUEUED);
   1.757 +  NS_ENSURE_SUCCESS(rv, rv);
   1.758 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("downloading"), nsIDownloadManager::DOWNLOAD_DOWNLOADING);
   1.759 +  NS_ENSURE_SUCCESS(rv, rv);
   1.760 +
   1.761 +  rv = stmt->Execute();
   1.762 +  NS_ENSURE_SUCCESS(rv, rv);
   1.763 +
   1.764 +  // Switch any download that is supposed to automatically resume and is in a
   1.765 +  // finished state to *not* automatically resume.  See Bug 409179 for details.
   1.766 +  rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
   1.767 +    "UPDATE moz_downloads "
   1.768 +    "SET autoResume = :autoResume "
   1.769 +    "WHERE state = :state "
   1.770 +      "AND autoResume = :autoResume_cond"),
   1.771 +    getter_AddRefs(stmt));
   1.772 +  NS_ENSURE_SUCCESS(rv, rv);
   1.773 +
   1.774 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), nsDownload::DONT_RESUME);
   1.775 +  NS_ENSURE_SUCCESS(rv, rv);
   1.776 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_FINISHED);
   1.777 +  NS_ENSURE_SUCCESS(rv, rv);
   1.778 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume_cond"), nsDownload::AUTO_RESUME);
   1.779 +  NS_ENSURE_SUCCESS(rv, rv);
   1.780 +
   1.781 +  rv = stmt->Execute();
   1.782 +  NS_ENSURE_SUCCESS(rv, rv);
   1.783 +
   1.784 +  return NS_OK;
   1.785 +}
   1.786 +
   1.787 +nsresult
   1.788 +nsDownloadManager::RestoreActiveDownloads()
   1.789 +{
   1.790 +  nsCOMPtr<mozIStorageStatement> stmt;
   1.791 +  nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
   1.792 +    "SELECT id "
   1.793 +    "FROM moz_downloads "
   1.794 +    "WHERE (state = :state AND LENGTH(entityID) > 0) "
   1.795 +      "OR autoResume != :autoResume"), getter_AddRefs(stmt));
   1.796 +  NS_ENSURE_SUCCESS(rv, rv);
   1.797 +
   1.798 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_PAUSED);
   1.799 +  NS_ENSURE_SUCCESS(rv, rv);
   1.800 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), nsDownload::DONT_RESUME);
   1.801 +  NS_ENSURE_SUCCESS(rv, rv);
   1.802 +
   1.803 +  nsresult retVal = NS_OK;
   1.804 +  bool hasResults;
   1.805 +  while (NS_SUCCEEDED(stmt->ExecuteStep(&hasResults)) && hasResults) {
   1.806 +    nsRefPtr<nsDownload> dl;
   1.807 +    // Keep trying to add even if we fail one, but make sure to return failure.
   1.808 +    // Additionally, be careful to not call anything that tries to change the
   1.809 +    // database because we're iterating over a live statement.
   1.810 +    if (NS_FAILED(GetDownloadFromDB(stmt->AsInt32(0), getter_AddRefs(dl))) ||
   1.811 +        NS_FAILED(AddToCurrentDownloads(dl)))
   1.812 +      retVal = NS_ERROR_FAILURE;
   1.813 +  }
   1.814 +
   1.815 +  // Try to resume only the downloads that should auto-resume
   1.816 +  rv = ResumeAllDownloads(false);
   1.817 +  NS_ENSURE_SUCCESS(rv, rv);
   1.818 +
   1.819 +  return retVal;
   1.820 +}
   1.821 +
   1.822 +int64_t
   1.823 +nsDownloadManager::AddDownloadToDB(const nsAString &aName,
   1.824 +                                   const nsACString &aSource,
   1.825 +                                   const nsACString &aTarget,
   1.826 +                                   const nsAString &aTempPath,
   1.827 +                                   int64_t aStartTime,
   1.828 +                                   int64_t aEndTime,
   1.829 +                                   const nsACString &aMimeType,
   1.830 +                                   const nsACString &aPreferredApp,
   1.831 +                                   nsHandlerInfoAction aPreferredAction,
   1.832 +                                   bool aPrivate,
   1.833 +                                   nsACString& aNewGUID)
   1.834 +{
   1.835 +  mozIStorageConnection* dbConn = aPrivate ? mPrivateDBConn : mDBConn;
   1.836 +  nsCOMPtr<mozIStorageStatement> stmt;
   1.837 +  nsresult rv = dbConn->CreateStatement(NS_LITERAL_CSTRING(
   1.838 +    "INSERT INTO moz_downloads "
   1.839 +    "(name, source, target, tempPath, startTime, endTime, state, "
   1.840 +     "mimeType, preferredApplication, preferredAction, guid) VALUES "
   1.841 +    "(:name, :source, :target, :tempPath, :startTime, :endTime, :state, "
   1.842 +     ":mimeType, :preferredApplication, :preferredAction, :guid)"),
   1.843 +    getter_AddRefs(stmt));
   1.844 +  NS_ENSURE_SUCCESS(rv, 0);
   1.845 +
   1.846 +  rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), aName);
   1.847 +  NS_ENSURE_SUCCESS(rv, 0);
   1.848 +
   1.849 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("source"), aSource);
   1.850 +  NS_ENSURE_SUCCESS(rv, 0);
   1.851 +
   1.852 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("target"), aTarget);
   1.853 +  NS_ENSURE_SUCCESS(rv, 0);
   1.854 +
   1.855 +  rv = stmt->BindStringByName(NS_LITERAL_CSTRING("tempPath"), aTempPath);
   1.856 +  NS_ENSURE_SUCCESS(rv, 0);
   1.857 +
   1.858 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("startTime"), aStartTime);
   1.859 +  NS_ENSURE_SUCCESS(rv, 0);
   1.860 +
   1.861 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("endTime"), aEndTime);
   1.862 +  NS_ENSURE_SUCCESS(rv, 0);
   1.863 +
   1.864 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_NOTSTARTED);
   1.865 +  NS_ENSURE_SUCCESS(rv, 0);
   1.866 +
   1.867 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("mimeType"), aMimeType);
   1.868 +  NS_ENSURE_SUCCESS(rv, 0);
   1.869 +
   1.870 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("preferredApplication"), aPreferredApp);
   1.871 +  NS_ENSURE_SUCCESS(rv, 0);
   1.872 +
   1.873 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("preferredAction"), aPreferredAction);
   1.874 +  NS_ENSURE_SUCCESS(rv, 0);
   1.875 +
   1.876 +  nsAutoCString guid;
   1.877 +  rv = GenerateGUID(guid);
   1.878 +  NS_ENSURE_SUCCESS(rv, 0);
   1.879 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), guid);
   1.880 +  NS_ENSURE_SUCCESS(rv, 0);
   1.881 +
   1.882 +  bool hasMore;
   1.883 +  rv = stmt->ExecuteStep(&hasMore); // we want to keep our lock
   1.884 +  NS_ENSURE_SUCCESS(rv, 0);
   1.885 +
   1.886 +  int64_t id = 0;
   1.887 +  rv = dbConn->GetLastInsertRowID(&id);
   1.888 +  NS_ENSURE_SUCCESS(rv, 0);
   1.889 +
   1.890 +  aNewGUID = guid;
   1.891 +
   1.892 +  // lock on DB from statement will be released once we return
   1.893 +  return id;
   1.894 +}
   1.895 +
   1.896 +nsresult
   1.897 +nsDownloadManager::InitDB()
   1.898 +{
   1.899 +  nsresult rv = InitPrivateDB();
   1.900 +  NS_ENSURE_SUCCESS(rv, rv);
   1.901 +
   1.902 +  rv = InitFileDB();
   1.903 +  NS_ENSURE_SUCCESS(rv, rv);
   1.904 +
   1.905 +  rv = InitStatements(mDBConn, getter_AddRefs(mUpdateDownloadStatement),
   1.906 +                      getter_AddRefs(mGetIdsForURIStatement));
   1.907 +  NS_ENSURE_SUCCESS(rv, rv);
   1.908 +  return NS_OK;
   1.909 +}
   1.910 +
   1.911 +nsresult
   1.912 +nsDownloadManager::InitStatements(mozIStorageConnection* aDBConn,
   1.913 +                                  mozIStorageStatement** aUpdateStatement,
   1.914 +                                  mozIStorageStatement** aGetIdsStatement)
   1.915 +{
   1.916 +  nsresult rv = aDBConn->CreateStatement(NS_LITERAL_CSTRING(
   1.917 +    "UPDATE moz_downloads "
   1.918 +    "SET tempPath = :tempPath, startTime = :startTime, endTime = :endTime, "
   1.919 +      "state = :state, referrer = :referrer, entityID = :entityID, "
   1.920 +      "currBytes = :currBytes, maxBytes = :maxBytes, autoResume = :autoResume "
   1.921 +    "WHERE id = :id"), aUpdateStatement);
   1.922 +  NS_ENSURE_SUCCESS(rv, rv);
   1.923 +
   1.924 +  rv = aDBConn->CreateStatement(NS_LITERAL_CSTRING(
   1.925 +    "SELECT guid "
   1.926 +    "FROM moz_downloads "
   1.927 +    "WHERE source = :source"), aGetIdsStatement);
   1.928 +  NS_ENSURE_SUCCESS(rv, rv);
   1.929 +
   1.930 +  return NS_OK;
   1.931 +}
   1.932 +
   1.933 +nsresult
   1.934 +nsDownloadManager::Init()
   1.935 +{
   1.936 +  nsresult rv;
   1.937 +
   1.938 +  nsCOMPtr<nsIStringBundleService> bundleService =
   1.939 +    mozilla::services::GetStringBundleService();
   1.940 +  if (!bundleService)
   1.941 +    return NS_ERROR_FAILURE;
   1.942 +
   1.943 +  rv = bundleService->CreateBundle(DOWNLOAD_MANAGER_BUNDLE,
   1.944 +                                   getter_AddRefs(mBundle));
   1.945 +  NS_ENSURE_SUCCESS(rv, rv);
   1.946 +
   1.947 +#if !defined(MOZ_JSDOWNLOADS)
   1.948 +  // When MOZ_JSDOWNLOADS is undefined, we still check the preference that can
   1.949 +  // be used to enable the JavaScript API during the migration process.
   1.950 +  mUseJSTransfer = Preferences::GetBool(PREF_BD_USEJSTRANSFER, false);
   1.951 +#else
   1.952 +
   1.953 +  nsAutoCString appID;
   1.954 +  nsCOMPtr<nsIXULAppInfo> info = do_GetService("@mozilla.org/xre/app-info;1");
   1.955 +  if (info) {
   1.956 +    rv = info->GetID(appID);
   1.957 +    NS_ENSURE_SUCCESS(rv, rv);
   1.958 +  }
   1.959 +
   1.960 +  // The webapp runtime doesn't use the new JS downloads API yet.
   1.961 +  // The conversion of the webapp runtime to use the JavaScript API for
   1.962 +  // downloads is tracked in bug 911636.
   1.963 +  if (appID.EqualsLiteral("webapprt@mozilla.org")) {
   1.964 +    mUseJSTransfer = false;
   1.965 +  } else {
   1.966 +#if !defined(XP_WIN)
   1.967 +    mUseJSTransfer = true;
   1.968 +#else
   1.969 +    // When MOZ_JSDOWNLOADS is defined on Windows, this component is disabled
   1.970 +    // unless we are running in Windows Metro.  The conversion of Windows Metro
   1.971 +    // to use the JavaScript API for downloads is tracked in bug 906042.
   1.972 +    mUseJSTransfer = !IsRunningInWindowsMetro();
   1.973 +#endif
   1.974 +  }
   1.975 +
   1.976 +#endif
   1.977 +
   1.978 +  if (mUseJSTransfer)
   1.979 +    return NS_OK;
   1.980 +
   1.981 +  // Clean up any old downloads.rdf files from before Firefox 3
   1.982 +  {
   1.983 +    nsCOMPtr<nsIFile> oldDownloadsFile;
   1.984 +    bool fileExists;
   1.985 +    if (NS_SUCCEEDED(NS_GetSpecialDirectory(NS_APP_DOWNLOADS_50_FILE,
   1.986 +          getter_AddRefs(oldDownloadsFile))) &&
   1.987 +        NS_SUCCEEDED(oldDownloadsFile->Exists(&fileExists)) &&
   1.988 +        fileExists) {
   1.989 +      (void)oldDownloadsFile->Remove(false);
   1.990 +    }
   1.991 +  }
   1.992 +
   1.993 +  mObserverService = mozilla::services::GetObserverService();
   1.994 +  if (!mObserverService)
   1.995 +    return NS_ERROR_FAILURE;
   1.996 +
   1.997 +  rv = InitDB();
   1.998 +  NS_ENSURE_SUCCESS(rv, rv);
   1.999 +
  1.1000 +#ifdef DOWNLOAD_SCANNER
  1.1001 +  mScanner = new nsDownloadScanner();
  1.1002 +  if (!mScanner)
  1.1003 +    return NS_ERROR_OUT_OF_MEMORY;
  1.1004 +  rv = mScanner->Init();
  1.1005 +  if (NS_FAILED(rv)) {
  1.1006 +    delete mScanner;
  1.1007 +    mScanner = nullptr;
  1.1008 +  }
  1.1009 +#endif
  1.1010 +
  1.1011 +  // Do things *after* initializing various download manager properties such as
  1.1012 +  // restoring downloads to a consistent state
  1.1013 +  rv = RestoreDatabaseState();
  1.1014 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1015 +
  1.1016 +  rv = RestoreActiveDownloads();
  1.1017 +  NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "Failed to restore all active downloads");
  1.1018 +
  1.1019 +  nsCOMPtr<nsINavHistoryService> history =
  1.1020 +    do_GetService(NS_NAVHISTORYSERVICE_CONTRACTID);
  1.1021 +
  1.1022 +  (void)mObserverService->NotifyObservers(
  1.1023 +                                static_cast<nsIDownloadManager *>(this),
  1.1024 +                                "download-manager-initialized",
  1.1025 +                                nullptr);
  1.1026 +
  1.1027 +  // The following AddObserver calls must be the last lines in this function,
  1.1028 +  // because otherwise, this function may fail (and thus, this object would be not
  1.1029 +  // completely initialized), but the observerservice would still keep a reference
  1.1030 +  // to us and notify us about shutdown, which may cause crashes.
  1.1031 +  // failure to add an observer is not critical
  1.1032 +  (void)mObserverService->AddObserver(this, "quit-application", true);
  1.1033 +  (void)mObserverService->AddObserver(this, "quit-application-requested", true);
  1.1034 +  (void)mObserverService->AddObserver(this, "offline-requested", true);
  1.1035 +  (void)mObserverService->AddObserver(this, "sleep_notification", true);
  1.1036 +  (void)mObserverService->AddObserver(this, "wake_notification", true);
  1.1037 +  (void)mObserverService->AddObserver(this, "suspend_process_notification", true);
  1.1038 +  (void)mObserverService->AddObserver(this, "resume_process_notification", true);
  1.1039 +  (void)mObserverService->AddObserver(this, "profile-before-change", true);
  1.1040 +  (void)mObserverService->AddObserver(this, NS_IOSERVICE_GOING_OFFLINE_TOPIC, true);
  1.1041 +  (void)mObserverService->AddObserver(this, NS_IOSERVICE_OFFLINE_STATUS_TOPIC, true);
  1.1042 +  (void)mObserverService->AddObserver(this, "last-pb-context-exited", true);
  1.1043 +  (void)mObserverService->AddObserver(this, "last-pb-context-exiting", true);
  1.1044 +
  1.1045 +  if (history)
  1.1046 +    (void)history->AddObserver(this, true);
  1.1047 +
  1.1048 +  return NS_OK;
  1.1049 +}
  1.1050 +
  1.1051 +int32_t
  1.1052 +nsDownloadManager::GetRetentionBehavior()
  1.1053 +{
  1.1054 +  // We use 0 as the default, which is "remove when done"
  1.1055 +  nsresult rv;
  1.1056 +  nsCOMPtr<nsIPrefBranch> pref = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
  1.1057 +  NS_ENSURE_SUCCESS(rv, 0);
  1.1058 +
  1.1059 +  int32_t val;
  1.1060 +  rv = pref->GetIntPref(PREF_BDM_RETENTION, &val);
  1.1061 +  NS_ENSURE_SUCCESS(rv, 0);
  1.1062 +
  1.1063 +  // Allow the Downloads Panel to change the retention behavior.  We do this to
  1.1064 +  // allow proper migration to the new feature when using the same profile on
  1.1065 +  // multiple versions of the product (bug 697678).  Implementation note: in
  1.1066 +  // order to allow observers to change the retention value, we have to pass an
  1.1067 +  // object in the aSubject parameter, we cannot use aData for that.
  1.1068 +  nsCOMPtr<nsISupportsPRInt32> retentionBehavior =
  1.1069 +    do_CreateInstance(NS_SUPPORTS_PRINT32_CONTRACTID);
  1.1070 +  retentionBehavior->SetData(val);
  1.1071 +  (void)mObserverService->NotifyObservers(retentionBehavior,
  1.1072 +                                          "download-manager-change-retention",
  1.1073 +                                          nullptr);
  1.1074 +  retentionBehavior->GetData(&val);
  1.1075 +
  1.1076 +  return val;
  1.1077 +}
  1.1078 +
  1.1079 +enum nsDownloadManager::QuitBehavior
  1.1080 +nsDownloadManager::GetQuitBehavior()
  1.1081 +{
  1.1082 +  // We use 0 as the default, which is "remember and resume the download"
  1.1083 +  nsresult rv;
  1.1084 +  nsCOMPtr<nsIPrefBranch> pref = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
  1.1085 +  NS_ENSURE_SUCCESS(rv, QUIT_AND_RESUME);
  1.1086 +
  1.1087 +  int32_t val;
  1.1088 +  rv = pref->GetIntPref(PREF_BDM_QUITBEHAVIOR, &val);
  1.1089 +  NS_ENSURE_SUCCESS(rv, QUIT_AND_RESUME);
  1.1090 +
  1.1091 +  switch (val) {
  1.1092 +    case 1:
  1.1093 +      return QUIT_AND_PAUSE;
  1.1094 +    case 2:
  1.1095 +      return QUIT_AND_CANCEL;
  1.1096 +    default:
  1.1097 +      return QUIT_AND_RESUME;
  1.1098 +  }
  1.1099 +}
  1.1100 +
  1.1101 +// Using a globally-unique GUID, search all databases (both private and public).
  1.1102 +// A return value of NS_ERROR_NOT_AVAILABLE means no download with the given GUID
  1.1103 +// could be found, either private or public.
  1.1104 +
  1.1105 +nsresult
  1.1106 +nsDownloadManager::GetDownloadFromDB(const nsACString& aGUID, nsDownload **retVal)
  1.1107 +{
  1.1108 +  MOZ_ASSERT(!FindDownload(aGUID),
  1.1109 +             "If it is a current download, you should not call this method!");
  1.1110 +
  1.1111 +  NS_NAMED_LITERAL_CSTRING(query,
  1.1112 +    "SELECT id, state, startTime, source, target, tempPath, name, referrer, "
  1.1113 +           "entityID, currBytes, maxBytes, mimeType, preferredAction, "
  1.1114 +           "preferredApplication, autoResume, guid "
  1.1115 +    "FROM moz_downloads "
  1.1116 +    "WHERE guid = :guid");
  1.1117 +  // First, let's query the database and see if it even exists
  1.1118 +  nsCOMPtr<mozIStorageStatement> stmt;
  1.1119 +  nsresult rv = mDBConn->CreateStatement(query, getter_AddRefs(stmt));
  1.1120 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1121 +
  1.1122 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), aGUID);
  1.1123 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1124 +
  1.1125 +  rv = GetDownloadFromDB(mDBConn, stmt, retVal);
  1.1126 +
  1.1127 +  // If the download cannot be found in the public database, try again
  1.1128 +  // in the private one. Otherwise, return whatever successful result
  1.1129 +  // or failure obtained from the public database.
  1.1130 +  if (rv == NS_ERROR_NOT_AVAILABLE) {
  1.1131 +    rv = mPrivateDBConn->CreateStatement(query, getter_AddRefs(stmt));
  1.1132 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1133 +
  1.1134 +    rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), aGUID);
  1.1135 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1136 +
  1.1137 +    rv = GetDownloadFromDB(mPrivateDBConn, stmt, retVal);
  1.1138 +
  1.1139 +    // Only if it still cannot be found do we report the failure.
  1.1140 +    if (rv == NS_ERROR_NOT_AVAILABLE) {
  1.1141 +      *retVal = nullptr;
  1.1142 +    }
  1.1143 +  }
  1.1144 +  return rv;
  1.1145 +}
  1.1146 +
  1.1147 +nsresult
  1.1148 +nsDownloadManager::GetDownloadFromDB(uint32_t aID, nsDownload **retVal)
  1.1149 +{
  1.1150 +  NS_WARNING("Using integer IDs without compat mode enabled");
  1.1151 +
  1.1152 +  MOZ_ASSERT(!FindDownload(aID),
  1.1153 +             "If it is a current download, you should not call this method!");
  1.1154 +
  1.1155 +  // First, let's query the database and see if it even exists
  1.1156 +  nsCOMPtr<mozIStorageStatement> stmt;
  1.1157 +  nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
  1.1158 +    "SELECT id, state, startTime, source, target, tempPath, name, referrer, "
  1.1159 +           "entityID, currBytes, maxBytes, mimeType, preferredAction, "
  1.1160 +           "preferredApplication, autoResume, guid "
  1.1161 +    "FROM moz_downloads "
  1.1162 +    "WHERE id = :id"), getter_AddRefs(stmt));
  1.1163 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1164 +
  1.1165 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), aID);
  1.1166 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1167 +
  1.1168 +  return GetDownloadFromDB(mDBConn, stmt, retVal);
  1.1169 +}
  1.1170 +
  1.1171 +nsresult
  1.1172 +nsDownloadManager::GetDownloadFromDB(mozIStorageConnection* aDBConn,
  1.1173 +                                     mozIStorageStatement* stmt,
  1.1174 +                                     nsDownload **retVal)
  1.1175 +{
  1.1176 +  bool hasResults = false;
  1.1177 +  nsresult rv = stmt->ExecuteStep(&hasResults);
  1.1178 +  if (NS_FAILED(rv) || !hasResults)
  1.1179 +    return NS_ERROR_NOT_AVAILABLE;
  1.1180 +
  1.1181 +  // We have a download, so lets create it
  1.1182 +  nsRefPtr<nsDownload> dl = new nsDownload();
  1.1183 +  if (!dl)
  1.1184 +    return NS_ERROR_OUT_OF_MEMORY;
  1.1185 +  dl->mPrivate = aDBConn == mPrivateDBConn;
  1.1186 +
  1.1187 +  dl->mDownloadManager = this;
  1.1188 +
  1.1189 +  int32_t i = 0;
  1.1190 +  // Setting all properties of the download now
  1.1191 +  dl->mCancelable = nullptr;
  1.1192 +  dl->mID = stmt->AsInt64(i++);
  1.1193 +  dl->mDownloadState = stmt->AsInt32(i++);
  1.1194 +  dl->mStartTime = stmt->AsInt64(i++);
  1.1195 +
  1.1196 +  nsCString source;
  1.1197 +  stmt->GetUTF8String(i++, source);
  1.1198 +  rv = NS_NewURI(getter_AddRefs(dl->mSource), source);
  1.1199 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1200 +
  1.1201 +  nsCString target;
  1.1202 +  stmt->GetUTF8String(i++, target);
  1.1203 +  rv = NS_NewURI(getter_AddRefs(dl->mTarget), target);
  1.1204 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1205 +
  1.1206 +  nsString tempPath;
  1.1207 +  stmt->GetString(i++, tempPath);
  1.1208 +  if (!tempPath.IsEmpty()) {
  1.1209 +    rv = NS_NewLocalFile(tempPath, true, getter_AddRefs(dl->mTempFile));
  1.1210 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1211 +  }
  1.1212 +
  1.1213 +  stmt->GetString(i++, dl->mDisplayName);
  1.1214 +
  1.1215 +  nsCString referrer;
  1.1216 +  rv = stmt->GetUTF8String(i++, referrer);
  1.1217 +  if (NS_SUCCEEDED(rv) && !referrer.IsEmpty()) {
  1.1218 +    rv = NS_NewURI(getter_AddRefs(dl->mReferrer), referrer);
  1.1219 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1220 +  }
  1.1221 +
  1.1222 +  rv = stmt->GetUTF8String(i++, dl->mEntityID);
  1.1223 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1224 +
  1.1225 +  int64_t currBytes = stmt->AsInt64(i++);
  1.1226 +  int64_t maxBytes = stmt->AsInt64(i++);
  1.1227 +  dl->SetProgressBytes(currBytes, maxBytes);
  1.1228 +
  1.1229 +  // Build mMIMEInfo only if the mimeType in DB is not empty
  1.1230 +  nsAutoCString mimeType;
  1.1231 +  rv = stmt->GetUTF8String(i++, mimeType);
  1.1232 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1233 +
  1.1234 +  if (!mimeType.IsEmpty()) {
  1.1235 +    nsCOMPtr<nsIMIMEService> mimeService =
  1.1236 +      do_GetService(NS_MIMESERVICE_CONTRACTID, &rv);
  1.1237 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1238 +
  1.1239 +    rv = mimeService->GetFromTypeAndExtension(mimeType, EmptyCString(),
  1.1240 +                                              getter_AddRefs(dl->mMIMEInfo));
  1.1241 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1242 +
  1.1243 +    nsHandlerInfoAction action = stmt->AsInt32(i++);
  1.1244 +    rv = dl->mMIMEInfo->SetPreferredAction(action);
  1.1245 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1246 +
  1.1247 +    nsAutoCString persistentDescriptor;
  1.1248 +    rv = stmt->GetUTF8String(i++, persistentDescriptor);
  1.1249 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1250 +
  1.1251 +    if (!persistentDescriptor.IsEmpty()) {
  1.1252 +      nsCOMPtr<nsILocalHandlerApp> handler =
  1.1253 +        do_CreateInstance(NS_LOCALHANDLERAPP_CONTRACTID, &rv);
  1.1254 +      NS_ENSURE_SUCCESS(rv, rv);
  1.1255 +
  1.1256 +      nsCOMPtr<nsIFile> localExecutable;
  1.1257 +      rv = NS_NewNativeLocalFile(EmptyCString(), false,
  1.1258 +                                 getter_AddRefs(localExecutable));
  1.1259 +      NS_ENSURE_SUCCESS(rv, rv);
  1.1260 +
  1.1261 +      rv = localExecutable->SetPersistentDescriptor(persistentDescriptor);
  1.1262 +      NS_ENSURE_SUCCESS(rv, rv);
  1.1263 +
  1.1264 +      rv = handler->SetExecutable(localExecutable);
  1.1265 +      NS_ENSURE_SUCCESS(rv, rv);
  1.1266 +
  1.1267 +      rv = dl->mMIMEInfo->SetPreferredApplicationHandler(handler);
  1.1268 +      NS_ENSURE_SUCCESS(rv, rv);
  1.1269 +    }
  1.1270 +  } else {
  1.1271 +    // Compensate for the i++s skipped in the true block
  1.1272 +    i += 2;
  1.1273 +  }
  1.1274 +
  1.1275 +  dl->mAutoResume =
  1.1276 +    static_cast<enum nsDownload::AutoResume>(stmt->AsInt32(i++));
  1.1277 +
  1.1278 +  rv = stmt->GetUTF8String(i++, dl->mGUID);
  1.1279 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1280 +
  1.1281 +  // Handle situations where we load a download from a database that has been
  1.1282 +  // used in an older version and not gone through the upgrade path (ie. it
  1.1283 +  // contains empty GUID entries).
  1.1284 +  if (dl->mGUID.IsEmpty()) {
  1.1285 +    rv = GenerateGUID(dl->mGUID);
  1.1286 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1287 +    nsCOMPtr<mozIStorageStatement> stmt;
  1.1288 +    rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
  1.1289 +                                    "UPDATE moz_downloads SET guid = :guid "
  1.1290 +                                    "WHERE id = :id"),
  1.1291 +                                  getter_AddRefs(stmt));
  1.1292 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1293 +    rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), dl->mGUID);
  1.1294 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1295 +    rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), dl->mID);
  1.1296 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1297 +    rv = stmt->Execute();
  1.1298 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1299 +  }
  1.1300 +
  1.1301 +  // Addrefing and returning
  1.1302 +  NS_ADDREF(*retVal = dl);
  1.1303 +  return NS_OK;
  1.1304 +}
  1.1305 +
  1.1306 +nsresult
  1.1307 +nsDownloadManager::AddToCurrentDownloads(nsDownload *aDl)
  1.1308 +{
  1.1309 +  nsCOMArray<nsDownload>& currentDownloads =
  1.1310 +    aDl->mPrivate ? mCurrentPrivateDownloads : mCurrentDownloads;
  1.1311 +  if (!currentDownloads.AppendObject(aDl))
  1.1312 +    return NS_ERROR_OUT_OF_MEMORY;
  1.1313 +
  1.1314 +  aDl->mDownloadManager = this;
  1.1315 +  return NS_OK;
  1.1316 +}
  1.1317 +
  1.1318 +void
  1.1319 +nsDownloadManager::SendEvent(nsDownload *aDownload, const char *aTopic)
  1.1320 +{
  1.1321 +  (void)mObserverService->NotifyObservers(aDownload, aTopic, nullptr);
  1.1322 +}
  1.1323 +
  1.1324 +////////////////////////////////////////////////////////////////////////////////
  1.1325 +//// nsIDownloadManager
  1.1326 +
  1.1327 +NS_IMETHODIMP
  1.1328 +nsDownloadManager::GetActivePrivateDownloadCount(int32_t* aResult)
  1.1329 +{
  1.1330 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1331 +
  1.1332 +  *aResult = mCurrentPrivateDownloads.Count();
  1.1333 +  return NS_OK;
  1.1334 +}
  1.1335 +
  1.1336 +NS_IMETHODIMP
  1.1337 +nsDownloadManager::GetActiveDownloadCount(int32_t *aResult)
  1.1338 +{
  1.1339 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1340 +
  1.1341 +  *aResult = mCurrentDownloads.Count();
  1.1342 +
  1.1343 +  return NS_OK;
  1.1344 +}
  1.1345 +
  1.1346 +NS_IMETHODIMP
  1.1347 +nsDownloadManager::GetActiveDownloads(nsISimpleEnumerator **aResult)
  1.1348 +{
  1.1349 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1350 +
  1.1351 +  return NS_NewArrayEnumerator(aResult, mCurrentDownloads);
  1.1352 +}
  1.1353 +
  1.1354 +NS_IMETHODIMP
  1.1355 +nsDownloadManager::GetActivePrivateDownloads(nsISimpleEnumerator **aResult)
  1.1356 +{
  1.1357 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1358 +
  1.1359 +  return NS_NewArrayEnumerator(aResult, mCurrentPrivateDownloads);
  1.1360 +}
  1.1361 +
  1.1362 +/**
  1.1363 + * For platforms where helper apps use the downloads directory (i.e. mobile),
  1.1364 + * this should be kept in sync with nsExternalHelperAppService.cpp
  1.1365 + */
  1.1366 +NS_IMETHODIMP
  1.1367 +nsDownloadManager::GetDefaultDownloadsDirectory(nsIFile **aResult)
  1.1368 +{
  1.1369 +  nsCOMPtr<nsIFile> downloadDir;
  1.1370 +
  1.1371 +  nsresult rv;
  1.1372 +  nsCOMPtr<nsIProperties> dirService =
  1.1373 +     do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
  1.1374 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1375 +
  1.1376 +  // OSX 10.4:
  1.1377 +  // Desktop
  1.1378 +  // OSX 10.5:
  1.1379 +  // User download directory
  1.1380 +  // Vista:
  1.1381 +  // Downloads
  1.1382 +  // XP/2K:
  1.1383 +  // My Documents/Downloads
  1.1384 +  // Linux:
  1.1385 +  // XDG user dir spec, with a fallback to Home/Downloads
  1.1386 +
  1.1387 +  nsXPIDLString folderName;
  1.1388 +  mBundle->GetStringFromName(MOZ_UTF16("downloadsFolder"),
  1.1389 +                             getter_Copies(folderName));
  1.1390 +
  1.1391 +#if defined (XP_MACOSX)
  1.1392 +  rv = dirService->Get(NS_OSX_DEFAULT_DOWNLOAD_DIR,
  1.1393 +                       NS_GET_IID(nsIFile),
  1.1394 +                       getter_AddRefs(downloadDir));
  1.1395 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1396 +#elif defined(XP_WIN)
  1.1397 +  rv = dirService->Get(NS_WIN_DEFAULT_DOWNLOAD_DIR,
  1.1398 +                       NS_GET_IID(nsIFile),
  1.1399 +                       getter_AddRefs(downloadDir));
  1.1400 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1401 +
  1.1402 +  // Check the os version
  1.1403 +  nsCOMPtr<nsIPropertyBag2> infoService =
  1.1404 +     do_GetService(NS_SYSTEMINFO_CONTRACTID, &rv);
  1.1405 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1406 +
  1.1407 +  int32_t version;
  1.1408 +  NS_NAMED_LITERAL_STRING(osVersion, "version");
  1.1409 +  rv = infoService->GetPropertyAsInt32(osVersion, &version);
  1.1410 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1411 +  if (version < 6) { // XP/2K
  1.1412 +    // First get "My Documents"
  1.1413 +    rv = dirService->Get(NS_WIN_PERSONAL_DIR,
  1.1414 +                         NS_GET_IID(nsIFile),
  1.1415 +                         getter_AddRefs(downloadDir));
  1.1416 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1417 +
  1.1418 +    rv = downloadDir->Append(folderName);
  1.1419 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1420 +
  1.1421 +    // This could be the first time we are creating the downloads folder in My
  1.1422 +    // Documents, so make sure it exists.
  1.1423 +    bool exists;
  1.1424 +    rv = downloadDir->Exists(&exists);
  1.1425 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1426 +    if (!exists) {
  1.1427 +      rv = downloadDir->Create(nsIFile::DIRECTORY_TYPE, 0755);
  1.1428 +      NS_ENSURE_SUCCESS(rv, rv);
  1.1429 +    }
  1.1430 +  }
  1.1431 +#elif defined(XP_UNIX)
  1.1432 +#if defined(MOZ_WIDGET_ANDROID)
  1.1433 +    // Android doesn't have a $HOME directory, and by default we only have
  1.1434 +    // write access to /data/data/org.mozilla.{$APP} and /sdcard
  1.1435 +    char* downloadDirPath = getenv("DOWNLOADS_DIRECTORY");
  1.1436 +    if (downloadDirPath) {
  1.1437 +      rv = NS_NewNativeLocalFile(nsDependentCString(downloadDirPath),
  1.1438 +                                 true, getter_AddRefs(downloadDir));
  1.1439 +      NS_ENSURE_SUCCESS(rv, rv);
  1.1440 +    }
  1.1441 +    else {
  1.1442 +      rv = NS_ERROR_FAILURE;
  1.1443 +    }
  1.1444 +#else
  1.1445 +  rv = dirService->Get(NS_UNIX_DEFAULT_DOWNLOAD_DIR,
  1.1446 +                       NS_GET_IID(nsIFile),
  1.1447 +                       getter_AddRefs(downloadDir));
  1.1448 +  // fallback to Home/Downloads
  1.1449 +  if (NS_FAILED(rv)) {
  1.1450 +    rv = dirService->Get(NS_UNIX_HOME_DIR,
  1.1451 +                         NS_GET_IID(nsIFile),
  1.1452 +                         getter_AddRefs(downloadDir));
  1.1453 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1454 +    rv = downloadDir->Append(folderName);
  1.1455 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1456 +  }
  1.1457 +#endif
  1.1458 +#else
  1.1459 +  rv = dirService->Get(NS_OS_HOME_DIR,
  1.1460 +                       NS_GET_IID(nsIFile),
  1.1461 +                       getter_AddRefs(downloadDir));
  1.1462 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1463 +  rv = downloadDir->Append(folderName);
  1.1464 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1465 +#endif
  1.1466 +
  1.1467 +  downloadDir.forget(aResult);
  1.1468 +
  1.1469 +  return NS_OK;
  1.1470 +}
  1.1471 +
  1.1472 +#define NS_BRANCH_DOWNLOAD     "browser.download."
  1.1473 +#define NS_PREF_FOLDERLIST     "folderList"
  1.1474 +#define NS_PREF_DIR            "dir"
  1.1475 +
  1.1476 +NS_IMETHODIMP
  1.1477 +nsDownloadManager::GetUserDownloadsDirectory(nsIFile **aResult)
  1.1478 +{
  1.1479 +  nsresult rv;
  1.1480 +  nsCOMPtr<nsIProperties> dirService =
  1.1481 +     do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
  1.1482 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1483 +
  1.1484 +  nsCOMPtr<nsIPrefService> prefService =
  1.1485 +     do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
  1.1486 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1487 +
  1.1488 +  nsCOMPtr<nsIPrefBranch> prefBranch;
  1.1489 +  rv = prefService->GetBranch(NS_BRANCH_DOWNLOAD,
  1.1490 +                              getter_AddRefs(prefBranch));
  1.1491 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1492 +
  1.1493 +  int32_t val;
  1.1494 +  rv = prefBranch->GetIntPref(NS_PREF_FOLDERLIST,
  1.1495 +                              &val);
  1.1496 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1497 +
  1.1498 +  switch(val) {
  1.1499 +    case 0: // Desktop
  1.1500 +      {
  1.1501 +        nsCOMPtr<nsIFile> downloadDir;
  1.1502 +        nsCOMPtr<nsIProperties> dirService =
  1.1503 +           do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
  1.1504 +        NS_ENSURE_SUCCESS(rv, rv);
  1.1505 +        rv = dirService->Get(NS_OS_DESKTOP_DIR,
  1.1506 +                             NS_GET_IID(nsIFile),
  1.1507 +                             getter_AddRefs(downloadDir));
  1.1508 +        NS_ENSURE_SUCCESS(rv, rv);
  1.1509 +        downloadDir.forget(aResult);
  1.1510 +        return NS_OK;
  1.1511 +      }
  1.1512 +      break;
  1.1513 +    case 1: // Downloads
  1.1514 +      return GetDefaultDownloadsDirectory(aResult);
  1.1515 +    case 2: // Custom
  1.1516 +      {
  1.1517 +        nsCOMPtr<nsIFile> customDirectory;
  1.1518 +        prefBranch->GetComplexValue(NS_PREF_DIR,
  1.1519 +                                    NS_GET_IID(nsIFile),
  1.1520 +                                    getter_AddRefs(customDirectory));
  1.1521 +        if (customDirectory) {
  1.1522 +          bool exists = false;
  1.1523 +          (void)customDirectory->Exists(&exists);
  1.1524 +
  1.1525 +          if (!exists) {
  1.1526 +            rv = customDirectory->Create(nsIFile::DIRECTORY_TYPE, 0755);
  1.1527 +            if (NS_SUCCEEDED(rv)) {
  1.1528 +              customDirectory.forget(aResult);
  1.1529 +              return NS_OK;
  1.1530 +            }
  1.1531 +
  1.1532 +            // Create failed, so it still doesn't exist.  Fall out and get the
  1.1533 +            // default downloads directory.
  1.1534 +          }
  1.1535 +
  1.1536 +          bool writable = false;
  1.1537 +          bool directory = false;
  1.1538 +          (void)customDirectory->IsWritable(&writable);
  1.1539 +          (void)customDirectory->IsDirectory(&directory);
  1.1540 +
  1.1541 +          if (exists && writable && directory) {
  1.1542 +            customDirectory.forget(aResult);
  1.1543 +            return NS_OK;
  1.1544 +          }
  1.1545 +        }
  1.1546 +        rv = GetDefaultDownloadsDirectory(aResult);
  1.1547 +        if (NS_SUCCEEDED(rv)) {
  1.1548 +          (void)prefBranch->SetComplexValue(NS_PREF_DIR,
  1.1549 +                                            NS_GET_IID(nsIFile),
  1.1550 +                                            *aResult);
  1.1551 +        }
  1.1552 +        return rv;
  1.1553 +      }
  1.1554 +      break;
  1.1555 +  }
  1.1556 +  return NS_ERROR_INVALID_ARG;
  1.1557 +}
  1.1558 +
  1.1559 +NS_IMETHODIMP
  1.1560 +nsDownloadManager::AddDownload(DownloadType aDownloadType,
  1.1561 +                               nsIURI *aSource,
  1.1562 +                               nsIURI *aTarget,
  1.1563 +                               const nsAString& aDisplayName,
  1.1564 +                               nsIMIMEInfo *aMIMEInfo,
  1.1565 +                               PRTime aStartTime,
  1.1566 +                               nsIFile *aTempFile,
  1.1567 +                               nsICancelable *aCancelable,
  1.1568 +                               bool aIsPrivate,
  1.1569 +                               nsIDownload **aDownload)
  1.1570 +{
  1.1571 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1572 +
  1.1573 +  NS_ENSURE_ARG_POINTER(aSource);
  1.1574 +  NS_ENSURE_ARG_POINTER(aTarget);
  1.1575 +  NS_ENSURE_ARG_POINTER(aDownload);
  1.1576 +
  1.1577 +  nsresult rv;
  1.1578 +
  1.1579 +  // target must be on the local filesystem
  1.1580 +  nsCOMPtr<nsIFileURL> targetFileURL = do_QueryInterface(aTarget, &rv);
  1.1581 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1582 +
  1.1583 +  nsCOMPtr<nsIFile> targetFile;
  1.1584 +  rv = targetFileURL->GetFile(getter_AddRefs(targetFile));
  1.1585 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1586 +
  1.1587 +  nsRefPtr<nsDownload> dl = new nsDownload();
  1.1588 +  if (!dl)
  1.1589 +    return NS_ERROR_OUT_OF_MEMORY;
  1.1590 +
  1.1591 +  // give our new nsIDownload some info so it's ready to go off into the world
  1.1592 +  dl->mTarget = aTarget;
  1.1593 +  dl->mSource = aSource;
  1.1594 +  dl->mTempFile = aTempFile;
  1.1595 +  dl->mPrivate = aIsPrivate;
  1.1596 +
  1.1597 +  dl->mDisplayName = aDisplayName;
  1.1598 +  if (dl->mDisplayName.IsEmpty())
  1.1599 +    targetFile->GetLeafName(dl->mDisplayName);
  1.1600 +
  1.1601 +  dl->mMIMEInfo = aMIMEInfo;
  1.1602 +  dl->SetStartTime(aStartTime == 0 ? PR_Now() : aStartTime);
  1.1603 +
  1.1604 +  // Creates a cycle that will be broken when the download finishes
  1.1605 +  dl->mCancelable = aCancelable;
  1.1606 +
  1.1607 +  // Adding to the DB
  1.1608 +  nsAutoCString source, target;
  1.1609 +  aSource->GetSpec(source);
  1.1610 +  aTarget->GetSpec(target);
  1.1611 +
  1.1612 +  // Track the temp file for exthandler downloads
  1.1613 +  nsAutoString tempPath;
  1.1614 +  if (aTempFile)
  1.1615 +    aTempFile->GetPath(tempPath);
  1.1616 +
  1.1617 +  // Break down MIMEInfo but don't panic if we can't get all the pieces - we
  1.1618 +  // can still download the file
  1.1619 +  nsAutoCString persistentDescriptor, mimeType;
  1.1620 +  nsHandlerInfoAction action = nsIMIMEInfo::saveToDisk;
  1.1621 +  if (aMIMEInfo) {
  1.1622 +    (void)aMIMEInfo->GetType(mimeType);
  1.1623 +
  1.1624 +    nsCOMPtr<nsIHandlerApp> handlerApp;
  1.1625 +    (void)aMIMEInfo->GetPreferredApplicationHandler(getter_AddRefs(handlerApp));
  1.1626 +    nsCOMPtr<nsILocalHandlerApp> locHandlerApp = do_QueryInterface(handlerApp);
  1.1627 +
  1.1628 +    if (locHandlerApp) {
  1.1629 +      nsCOMPtr<nsIFile> executable;
  1.1630 +      (void)locHandlerApp->GetExecutable(getter_AddRefs(executable));
  1.1631 +      (void)executable->GetPersistentDescriptor(persistentDescriptor);
  1.1632 +    }
  1.1633 +
  1.1634 +    (void)aMIMEInfo->GetPreferredAction(&action);
  1.1635 +  }
  1.1636 +
  1.1637 +  int64_t id = AddDownloadToDB(dl->mDisplayName, source, target, tempPath,
  1.1638 +                               dl->mStartTime, dl->mLastUpdate,
  1.1639 +                               mimeType, persistentDescriptor, action,
  1.1640 +                               dl->mPrivate, dl->mGUID /* outparam */);
  1.1641 +  NS_ENSURE_TRUE(id, NS_ERROR_FAILURE);
  1.1642 +  dl->mID = id;
  1.1643 +
  1.1644 +  rv = AddToCurrentDownloads(dl);
  1.1645 +  (void)dl->SetState(nsIDownloadManager::DOWNLOAD_QUEUED);
  1.1646 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1647 +
  1.1648 +#ifdef DOWNLOAD_SCANNER
  1.1649 +  if (mScanner) {
  1.1650 +    bool scan = true;
  1.1651 +    nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
  1.1652 +    if (prefs) {
  1.1653 +      (void)prefs->GetBoolPref(PREF_BDM_SCANWHENDONE, &scan);
  1.1654 +    }
  1.1655 +    // We currently apply local security policy to downloads when we scan
  1.1656 +    // via windows all-in-one download security api. The CheckPolicy call
  1.1657 +    // below is a pre-emptive part of that process. So tie applying security
  1.1658 +    // zone policy settings when downloads are intiated to the same pref
  1.1659 +    // that triggers applying security zone policy settings after a download
  1.1660 +    // completes. (bug 504804)
  1.1661 +    if (scan) {
  1.1662 +      AVCheckPolicyState res = mScanner->CheckPolicy(aSource, aTarget);
  1.1663 +      if (res == AVPOLICY_BLOCKED) {
  1.1664 +        // This download will get deleted during a call to IAE's Save,
  1.1665 +        // so go ahead and mark it as blocked and avoid the download.
  1.1666 +        (void)CancelDownload(id);
  1.1667 +        (void)dl->SetState(nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY);
  1.1668 +      }
  1.1669 +    }
  1.1670 +  }
  1.1671 +#endif
  1.1672 +
  1.1673 +  // Check with parental controls to see if file downloads
  1.1674 +  // are allowed for this user. If not allowed, cancel the
  1.1675 +  // download and mark its state as being blocked.
  1.1676 +  nsCOMPtr<nsIParentalControlsService> pc =
  1.1677 +    do_CreateInstance(NS_PARENTALCONTROLSSERVICE_CONTRACTID);
  1.1678 +  if (pc) {
  1.1679 +    bool enabled = false;
  1.1680 +    (void)pc->GetBlockFileDownloadsEnabled(&enabled);
  1.1681 +    if (enabled) {
  1.1682 +      (void)CancelDownload(id);
  1.1683 +      (void)dl->SetState(nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL);
  1.1684 +    }
  1.1685 +
  1.1686 +    // Log the event if required by pc settings.
  1.1687 +    bool logEnabled = false;
  1.1688 +    (void)pc->GetLoggingEnabled(&logEnabled);
  1.1689 +    if (logEnabled) {
  1.1690 +      (void)pc->Log(nsIParentalControlsService::ePCLog_FileDownload,
  1.1691 +                    enabled,
  1.1692 +                    aSource,
  1.1693 +                    nullptr);
  1.1694 +    }
  1.1695 +  }
  1.1696 +
  1.1697 +  NS_ADDREF(*aDownload = dl);
  1.1698 +
  1.1699 +  return NS_OK;
  1.1700 +}
  1.1701 +
  1.1702 +NS_IMETHODIMP
  1.1703 +nsDownloadManager::GetDownload(uint32_t aID, nsIDownload **aDownloadItem)
  1.1704 +{
  1.1705 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1706 +
  1.1707 +  NS_WARNING("Using integer IDs without compat mode enabled");
  1.1708 +
  1.1709 +  nsDownload *itm = FindDownload(aID);
  1.1710 +
  1.1711 +  nsRefPtr<nsDownload> dl;
  1.1712 +  if (!itm) {
  1.1713 +    nsresult rv = GetDownloadFromDB(aID, getter_AddRefs(dl));
  1.1714 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1715 +
  1.1716 +    itm = dl.get();
  1.1717 +  }
  1.1718 +
  1.1719 +  NS_ADDREF(*aDownloadItem = itm);
  1.1720 +
  1.1721 +  return NS_OK;
  1.1722 +}
  1.1723 +
  1.1724 +namespace {
  1.1725 +class AsyncResult : public nsRunnable
  1.1726 +{
  1.1727 +public:
  1.1728 +  AsyncResult(nsresult aStatus, nsIDownload* aResult,
  1.1729 +              nsIDownloadManagerResult* aCallback)
  1.1730 +  : mStatus(aStatus), mResult(aResult), mCallback(aCallback)
  1.1731 +  {
  1.1732 +  }
  1.1733 +
  1.1734 +  NS_IMETHOD Run()
  1.1735 +  {
  1.1736 +    mCallback->HandleResult(mStatus, mResult);
  1.1737 +    return NS_OK;
  1.1738 +  }
  1.1739 +
  1.1740 +private:
  1.1741 +  nsresult mStatus;
  1.1742 +  nsCOMPtr<nsIDownload> mResult;
  1.1743 +  nsCOMPtr<nsIDownloadManagerResult> mCallback;
  1.1744 +};
  1.1745 +} // anonymous namespace
  1.1746 +
  1.1747 +NS_IMETHODIMP
  1.1748 +nsDownloadManager::GetDownloadByGUID(const nsACString& aGUID,
  1.1749 +                                     nsIDownloadManagerResult* aCallback)
  1.1750 +{
  1.1751 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1752 +
  1.1753 +  nsDownload *itm = FindDownload(aGUID);
  1.1754 +
  1.1755 +  nsresult rv = NS_OK;
  1.1756 +  nsRefPtr<nsDownload> dl;
  1.1757 +  if (!itm) {
  1.1758 +    rv = GetDownloadFromDB(aGUID, getter_AddRefs(dl));
  1.1759 +    itm = dl.get();
  1.1760 +  }
  1.1761 +
  1.1762 +  nsRefPtr<AsyncResult> runnable = new AsyncResult(rv, itm, aCallback);
  1.1763 +  NS_DispatchToMainThread(runnable);
  1.1764 +  return NS_OK;
  1.1765 +}
  1.1766 +
  1.1767 +nsDownload *
  1.1768 +nsDownloadManager::FindDownload(uint32_t aID)
  1.1769 +{
  1.1770 +  // we shouldn't ever have many downloads, so we can loop over them
  1.1771 +  for (int32_t i = mCurrentDownloads.Count() - 1; i >= 0; --i) {
  1.1772 +    nsDownload *dl = mCurrentDownloads[i];
  1.1773 +    if (dl->mID == aID)
  1.1774 +      return dl;
  1.1775 +  }
  1.1776 +
  1.1777 +  return nullptr;
  1.1778 +}
  1.1779 +
  1.1780 +nsDownload *
  1.1781 +nsDownloadManager::FindDownload(const nsACString& aGUID)
  1.1782 +{
  1.1783 +  // we shouldn't ever have many downloads, so we can loop over them
  1.1784 +  for (int32_t i = mCurrentDownloads.Count() - 1; i >= 0; --i) {
  1.1785 +    nsDownload *dl = mCurrentDownloads[i];
  1.1786 +    if (dl->mGUID == aGUID)
  1.1787 +      return dl;
  1.1788 +  }
  1.1789 +
  1.1790 +  for (int32_t i = mCurrentPrivateDownloads.Count() - 1; i >= 0; --i) {
  1.1791 +    nsDownload *dl = mCurrentPrivateDownloads[i];
  1.1792 +    if (dl->mGUID == aGUID)
  1.1793 +      return dl;
  1.1794 +  }
  1.1795 +
  1.1796 +  return nullptr;
  1.1797 +}
  1.1798 +
  1.1799 +NS_IMETHODIMP
  1.1800 +nsDownloadManager::CancelDownload(uint32_t aID)
  1.1801 +{
  1.1802 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1803 +
  1.1804 +  NS_WARNING("Using integer IDs without compat mode enabled");
  1.1805 +
  1.1806 +  // We AddRef here so we don't lose access to member variables when we remove
  1.1807 +  nsRefPtr<nsDownload> dl = FindDownload(aID);
  1.1808 +
  1.1809 +  // if it's null, someone passed us a bad id.
  1.1810 +  if (!dl)
  1.1811 +    return NS_ERROR_FAILURE;
  1.1812 +
  1.1813 +  return dl->Cancel();
  1.1814 +}
  1.1815 +
  1.1816 +nsresult
  1.1817 +nsDownloadManager::RetryDownload(const nsACString& aGUID)
  1.1818 +{
  1.1819 +  nsRefPtr<nsDownload> dl;
  1.1820 +  nsresult rv = GetDownloadFromDB(aGUID, getter_AddRefs(dl));
  1.1821 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1822 +
  1.1823 +  return RetryDownload(dl);
  1.1824 +}
  1.1825 +
  1.1826 +
  1.1827 +NS_IMETHODIMP
  1.1828 +nsDownloadManager::RetryDownload(uint32_t aID)
  1.1829 +{
  1.1830 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1831 +
  1.1832 +  NS_WARNING("Using integer IDs without compat mode enabled");
  1.1833 +
  1.1834 +  nsRefPtr<nsDownload> dl;
  1.1835 +  nsresult rv = GetDownloadFromDB(aID, getter_AddRefs(dl));
  1.1836 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1837 +
  1.1838 +  return RetryDownload(dl);
  1.1839 +}
  1.1840 +
  1.1841 +nsresult
  1.1842 +nsDownloadManager::RetryDownload(nsDownload* dl)
  1.1843 +{
  1.1844 +  // if our download is not canceled or failed, we should fail
  1.1845 +  if (dl->mDownloadState != nsIDownloadManager::DOWNLOAD_FAILED &&
  1.1846 +      dl->mDownloadState != nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL &&
  1.1847 +      dl->mDownloadState != nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY &&
  1.1848 +      dl->mDownloadState != nsIDownloadManager::DOWNLOAD_DIRTY &&
  1.1849 +      dl->mDownloadState != nsIDownloadManager::DOWNLOAD_CANCELED)
  1.1850 +    return NS_ERROR_FAILURE;
  1.1851 +
  1.1852 +  // If the download has failed and is resumable then we first try resuming it
  1.1853 +  nsresult rv;
  1.1854 +  if (dl->mDownloadState == nsIDownloadManager::DOWNLOAD_FAILED && dl->IsResumable()) {
  1.1855 +    rv = dl->Resume();
  1.1856 +    if (NS_SUCCEEDED(rv))
  1.1857 +      return rv;
  1.1858 +  }
  1.1859 +
  1.1860 +  // reset time and download progress
  1.1861 +  dl->SetStartTime(PR_Now());
  1.1862 +  dl->SetProgressBytes(0, -1);
  1.1863 +
  1.1864 +  nsCOMPtr<nsIWebBrowserPersist> wbp =
  1.1865 +    do_CreateInstance("@mozilla.org/embedding/browser/nsWebBrowserPersist;1", &rv);
  1.1866 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1867 +
  1.1868 +  rv = wbp->SetPersistFlags(nsIWebBrowserPersist::PERSIST_FLAGS_REPLACE_EXISTING_FILES |
  1.1869 +                            nsIWebBrowserPersist::PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION);
  1.1870 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1871 +
  1.1872 +  rv = AddToCurrentDownloads(dl);
  1.1873 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1874 +
  1.1875 +  rv = dl->SetState(nsIDownloadManager::DOWNLOAD_QUEUED);
  1.1876 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1877 +
  1.1878 +  // Creates a cycle that will be broken when the download finishes
  1.1879 +  dl->mCancelable = wbp;
  1.1880 +  (void)wbp->SetProgressListener(dl);
  1.1881 +
  1.1882 +  rv = wbp->SavePrivacyAwareURI(dl->mSource, nullptr, nullptr, nullptr, nullptr,
  1.1883 +                                dl->mTarget, dl->mPrivate);
  1.1884 +  if (NS_FAILED(rv)) {
  1.1885 +    dl->mCancelable = nullptr;
  1.1886 +    (void)wbp->SetProgressListener(nullptr);
  1.1887 +    return rv;
  1.1888 +  }
  1.1889 +
  1.1890 +  return NS_OK;
  1.1891 +}
  1.1892 +
  1.1893 +static nsresult
  1.1894 +RemoveDownloadByGUID(const nsACString& aGUID, mozIStorageConnection* aDBConn)
  1.1895 +{
  1.1896 +  nsCOMPtr<mozIStorageStatement> stmt;
  1.1897 +  nsresult rv = aDBConn->CreateStatement(NS_LITERAL_CSTRING(
  1.1898 +    "DELETE FROM moz_downloads "
  1.1899 +    "WHERE guid = :guid"), getter_AddRefs(stmt));
  1.1900 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1901 +
  1.1902 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), aGUID);
  1.1903 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1904 +
  1.1905 +  rv = stmt->Execute();
  1.1906 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1907 +
  1.1908 +  return NS_OK;
  1.1909 +}
  1.1910 +
  1.1911 +nsresult
  1.1912 +nsDownloadManager::RemoveDownload(const nsACString& aGUID)
  1.1913 +{
  1.1914 +  nsRefPtr<nsDownload> dl = FindDownload(aGUID);
  1.1915 +  MOZ_ASSERT(!dl, "Can't call RemoveDownload on a download in progress!");
  1.1916 +  if (dl)
  1.1917 +    return NS_ERROR_FAILURE;
  1.1918 +
  1.1919 +  nsresult rv = GetDownloadFromDB(aGUID, getter_AddRefs(dl));
  1.1920 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1921 +
  1.1922 +  if (dl->mPrivate) {
  1.1923 +    RemoveDownloadByGUID(aGUID, mPrivateDBConn);
  1.1924 +  } else {
  1.1925 +    RemoveDownloadByGUID(aGUID, mDBConn);
  1.1926 +  }
  1.1927 +
  1.1928 +  return NotifyDownloadRemoval(dl);
  1.1929 +}
  1.1930 +
  1.1931 +NS_IMETHODIMP
  1.1932 +nsDownloadManager::RemoveDownload(uint32_t aID)
  1.1933 +{
  1.1934 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.1935 +
  1.1936 +  NS_WARNING("Using integer IDs without compat mode enabled");
  1.1937 +
  1.1938 +  nsRefPtr<nsDownload> dl = FindDownload(aID);
  1.1939 +  MOZ_ASSERT(!dl, "Can't call RemoveDownload on a download in progress!");
  1.1940 +  if (dl)
  1.1941 +    return NS_ERROR_FAILURE;
  1.1942 +
  1.1943 +  nsresult rv = GetDownloadFromDB(aID, getter_AddRefs(dl));
  1.1944 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1945 +
  1.1946 +  nsCOMPtr<mozIStorageStatement> stmt;
  1.1947 +  rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
  1.1948 +    "DELETE FROM moz_downloads "
  1.1949 +    "WHERE id = :id"), getter_AddRefs(stmt));
  1.1950 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1951 +
  1.1952 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), aID); // unsigned; 64-bit to prevent overflow
  1.1953 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1954 +
  1.1955 +  rv = stmt->Execute();
  1.1956 +  NS_ENSURE_SUCCESS(rv, rv);
  1.1957 +
  1.1958 +  // Notify the UI with the topic and download id
  1.1959 +  return NotifyDownloadRemoval(dl);
  1.1960 +}
  1.1961 +
  1.1962 +nsresult
  1.1963 +nsDownloadManager::NotifyDownloadRemoval(nsDownload* aRemoved)
  1.1964 +{
  1.1965 +  nsCOMPtr<nsISupportsPRUint32> id;
  1.1966 +  nsCOMPtr<nsISupportsCString> guid;
  1.1967 +  nsresult rv;
  1.1968 +
  1.1969 +  // Only send an integer ID notification if the download is public.
  1.1970 +  bool sendDeprecatedNotification = !(aRemoved && aRemoved->mPrivate);
  1.1971 +
  1.1972 +  if (sendDeprecatedNotification && aRemoved) {
  1.1973 +    id = do_CreateInstance(NS_SUPPORTS_PRUINT32_CONTRACTID, &rv);
  1.1974 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1975 +    uint32_t dlID;
  1.1976 +    rv = aRemoved->GetId(&dlID);
  1.1977 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1978 +    rv = id->SetData(dlID);
  1.1979 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1980 +  }
  1.1981 +
  1.1982 +  if (sendDeprecatedNotification) {
  1.1983 +    mObserverService->NotifyObservers(id,
  1.1984 +                                     "download-manager-remove-download",
  1.1985 +                                     nullptr);
  1.1986 +  }
  1.1987 +
  1.1988 +  if (aRemoved) {
  1.1989 +    guid = do_CreateInstance(NS_SUPPORTS_CSTRING_CONTRACTID, &rv);
  1.1990 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1991 +    nsAutoCString guidStr;
  1.1992 +    rv = aRemoved->GetGuid(guidStr);
  1.1993 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1994 +    rv = guid->SetData(guidStr);
  1.1995 +    NS_ENSURE_SUCCESS(rv, rv);
  1.1996 +  }
  1.1997 +
  1.1998 +  mObserverService->NotifyObservers(guid,
  1.1999 +                                    "download-manager-remove-download-guid",
  1.2000 +                                    nullptr);
  1.2001 +  return NS_OK;
  1.2002 +}
  1.2003 +
  1.2004 +static nsresult
  1.2005 +DoRemoveDownloadsByTimeframe(mozIStorageConnection* aDBConn,
  1.2006 +                             int64_t aStartTime,
  1.2007 +                             int64_t aEndTime)
  1.2008 +{
  1.2009 +  nsCOMPtr<mozIStorageStatement> stmt;
  1.2010 +  nsresult rv = aDBConn->CreateStatement(NS_LITERAL_CSTRING(
  1.2011 +    "DELETE FROM moz_downloads "
  1.2012 +    "WHERE startTime >= :startTime "
  1.2013 +    "AND startTime <= :endTime "
  1.2014 +    "AND state NOT IN (:downloading, :paused, :queued)"), getter_AddRefs(stmt));
  1.2015 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2016 +
  1.2017 +  // Bind the times
  1.2018 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("startTime"), aStartTime);
  1.2019 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2020 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("endTime"), aEndTime);
  1.2021 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2022 +
  1.2023 +  // Bind the active states
  1.2024 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("downloading"), nsIDownloadManager::DOWNLOAD_DOWNLOADING);
  1.2025 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2026 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("paused"), nsIDownloadManager::DOWNLOAD_PAUSED);
  1.2027 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2028 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("queued"), nsIDownloadManager::DOWNLOAD_QUEUED);
  1.2029 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2030 +
  1.2031 +  // Execute
  1.2032 +  rv = stmt->Execute();
  1.2033 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2034 +
  1.2035 +  return NS_OK;
  1.2036 +}
  1.2037 +
  1.2038 +NS_IMETHODIMP
  1.2039 +nsDownloadManager::RemoveDownloadsByTimeframe(int64_t aStartTime,
  1.2040 +                                              int64_t aEndTime)
  1.2041 +{
  1.2042 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2043 +
  1.2044 +  nsresult rv = DoRemoveDownloadsByTimeframe(mDBConn, aStartTime, aEndTime);
  1.2045 +  nsresult rv2 = DoRemoveDownloadsByTimeframe(mPrivateDBConn, aStartTime, aEndTime);
  1.2046 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2047 +  NS_ENSURE_SUCCESS(rv2, rv2);
  1.2048 +
  1.2049 +  // Notify the UI with the topic and null subject to indicate "remove multiple"
  1.2050 +  return NotifyDownloadRemoval(nullptr);
  1.2051 +}
  1.2052 +
  1.2053 +NS_IMETHODIMP
  1.2054 +nsDownloadManager::CleanUp()
  1.2055 +{
  1.2056 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2057 +
  1.2058 +  return CleanUp(mDBConn);
  1.2059 +}
  1.2060 +
  1.2061 +NS_IMETHODIMP
  1.2062 +nsDownloadManager::CleanUpPrivate()
  1.2063 +{
  1.2064 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2065 +
  1.2066 +  return CleanUp(mPrivateDBConn);
  1.2067 +}
  1.2068 +
  1.2069 +nsresult
  1.2070 +nsDownloadManager::CleanUp(mozIStorageConnection* aDBConn)
  1.2071 +{
  1.2072 +  DownloadState states[] = { nsIDownloadManager::DOWNLOAD_FINISHED,
  1.2073 +                             nsIDownloadManager::DOWNLOAD_FAILED,
  1.2074 +                             nsIDownloadManager::DOWNLOAD_CANCELED,
  1.2075 +                             nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL,
  1.2076 +                             nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY,
  1.2077 +                             nsIDownloadManager::DOWNLOAD_DIRTY };
  1.2078 +
  1.2079 +  nsCOMPtr<mozIStorageStatement> stmt;
  1.2080 +  nsresult rv = aDBConn->CreateStatement(NS_LITERAL_CSTRING(
  1.2081 +    "DELETE FROM moz_downloads "
  1.2082 +    "WHERE state = ? "
  1.2083 +      "OR state = ? "
  1.2084 +      "OR state = ? "
  1.2085 +      "OR state = ? "
  1.2086 +      "OR state = ? "
  1.2087 +      "OR state = ?"), getter_AddRefs(stmt));
  1.2088 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2089 +  for (uint32_t i = 0; i < ArrayLength(states); ++i) {
  1.2090 +    rv = stmt->BindInt32ByIndex(i, states[i]);
  1.2091 +    NS_ENSURE_SUCCESS(rv, rv);
  1.2092 +  }
  1.2093 +
  1.2094 +  rv = stmt->Execute();
  1.2095 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2096 +
  1.2097 +  // Notify the UI with the topic and null subject to indicate "remove multiple"
  1.2098 +  return NotifyDownloadRemoval(nullptr);
  1.2099 +}
  1.2100 +
  1.2101 +static nsresult
  1.2102 +DoGetCanCleanUp(mozIStorageConnection* aDBConn, bool *aResult)
  1.2103 +{
  1.2104 +  // This method should never return anything but NS_OK for the benefit of
  1.2105 +  // unwitting consumers.
  1.2106 +  
  1.2107 +  *aResult = false;
  1.2108 +
  1.2109 +  DownloadState states[] = { nsIDownloadManager::DOWNLOAD_FINISHED,
  1.2110 +                             nsIDownloadManager::DOWNLOAD_FAILED,
  1.2111 +                             nsIDownloadManager::DOWNLOAD_CANCELED,
  1.2112 +                             nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL,
  1.2113 +                             nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY,
  1.2114 +                             nsIDownloadManager::DOWNLOAD_DIRTY };
  1.2115 +
  1.2116 +  nsCOMPtr<mozIStorageStatement> stmt;
  1.2117 +  nsresult rv = aDBConn->CreateStatement(NS_LITERAL_CSTRING(
  1.2118 +    "SELECT COUNT(*) "
  1.2119 +    "FROM moz_downloads "
  1.2120 +    "WHERE state = ? "
  1.2121 +      "OR state = ? "
  1.2122 +      "OR state = ? "
  1.2123 +      "OR state = ? "
  1.2124 +      "OR state = ? "
  1.2125 +      "OR state = ?"), getter_AddRefs(stmt));
  1.2126 +  NS_ENSURE_SUCCESS(rv, NS_OK);
  1.2127 +  for (uint32_t i = 0; i < ArrayLength(states); ++i) {
  1.2128 +    rv = stmt->BindInt32ByIndex(i, states[i]);
  1.2129 +    NS_ENSURE_SUCCESS(rv, NS_OK);
  1.2130 +  }
  1.2131 +
  1.2132 +  bool moreResults; // We don't really care...
  1.2133 +  rv = stmt->ExecuteStep(&moreResults);
  1.2134 +  NS_ENSURE_SUCCESS(rv, NS_OK);
  1.2135 +
  1.2136 +  int32_t count;
  1.2137 +  rv = stmt->GetInt32(0, &count);
  1.2138 +  NS_ENSURE_SUCCESS(rv, NS_OK);
  1.2139 +
  1.2140 +  if (count > 0)
  1.2141 +    *aResult = true;
  1.2142 +
  1.2143 +  return NS_OK;
  1.2144 +}
  1.2145 +
  1.2146 +NS_IMETHODIMP
  1.2147 +nsDownloadManager::GetCanCleanUp(bool *aResult)
  1.2148 +{
  1.2149 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2150 +
  1.2151 +  return DoGetCanCleanUp(mDBConn, aResult);
  1.2152 +}
  1.2153 +
  1.2154 +NS_IMETHODIMP
  1.2155 +nsDownloadManager::GetCanCleanUpPrivate(bool *aResult)
  1.2156 +{
  1.2157 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2158 +
  1.2159 +  return DoGetCanCleanUp(mPrivateDBConn, aResult);
  1.2160 +}
  1.2161 +
  1.2162 +NS_IMETHODIMP
  1.2163 +nsDownloadManager::PauseDownload(uint32_t aID)
  1.2164 +{
  1.2165 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2166 +
  1.2167 +  NS_WARNING("Using integer IDs without compat mode enabled");
  1.2168 +
  1.2169 +  nsDownload *dl = FindDownload(aID);
  1.2170 +  if (!dl)
  1.2171 +    return NS_ERROR_FAILURE;
  1.2172 +
  1.2173 +  return dl->Pause();
  1.2174 +}
  1.2175 +
  1.2176 +NS_IMETHODIMP
  1.2177 +nsDownloadManager::ResumeDownload(uint32_t aID)
  1.2178 +{
  1.2179 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2180 +
  1.2181 +  NS_WARNING("Using integer IDs without compat mode enabled");
  1.2182 +
  1.2183 +  nsDownload *dl = FindDownload(aID);
  1.2184 +  if (!dl)
  1.2185 +    return NS_ERROR_FAILURE;
  1.2186 +
  1.2187 +  return dl->Resume();
  1.2188 +}
  1.2189 +
  1.2190 +NS_IMETHODIMP
  1.2191 +nsDownloadManager::GetDBConnection(mozIStorageConnection **aDBConn)
  1.2192 +{
  1.2193 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2194 +
  1.2195 +  NS_ADDREF(*aDBConn = mDBConn);
  1.2196 +
  1.2197 +  return NS_OK;
  1.2198 +}
  1.2199 +
  1.2200 +NS_IMETHODIMP
  1.2201 +nsDownloadManager::GetPrivateDBConnection(mozIStorageConnection **aDBConn)
  1.2202 +{
  1.2203 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2204 +
  1.2205 +  NS_ADDREF(*aDBConn = mPrivateDBConn);
  1.2206 +
  1.2207 +  return NS_OK;
  1.2208 + }
  1.2209 +
  1.2210 +NS_IMETHODIMP
  1.2211 +nsDownloadManager::AddListener(nsIDownloadProgressListener *aListener)
  1.2212 +{
  1.2213 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2214 +
  1.2215 +  mListeners.AppendObject(aListener);
  1.2216 +  return NS_OK;
  1.2217 +}
  1.2218 +
  1.2219 +NS_IMETHODIMP
  1.2220 +nsDownloadManager::AddPrivacyAwareListener(nsIDownloadProgressListener *aListener)
  1.2221 +{
  1.2222 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2223 +
  1.2224 +  mPrivacyAwareListeners.AppendObject(aListener);
  1.2225 +  return NS_OK;
  1.2226 +}
  1.2227 +
  1.2228 +NS_IMETHODIMP
  1.2229 +nsDownloadManager::RemoveListener(nsIDownloadProgressListener *aListener)
  1.2230 +{
  1.2231 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2232 +
  1.2233 +  mListeners.RemoveObject(aListener);
  1.2234 +  mPrivacyAwareListeners.RemoveObject(aListener);
  1.2235 +  return NS_OK;
  1.2236 +}
  1.2237 +
  1.2238 +void
  1.2239 +nsDownloadManager::NotifyListenersOnDownloadStateChange(int16_t aOldState,
  1.2240 +                                                        nsDownload *aDownload)
  1.2241 +{
  1.2242 +  for (int32_t i = mPrivacyAwareListeners.Count() - 1; i >= 0; --i) {
  1.2243 +    mPrivacyAwareListeners[i]->OnDownloadStateChange(aOldState, aDownload);
  1.2244 +  }
  1.2245 +
  1.2246 +  // Only privacy-aware listeners should receive notifications about private
  1.2247 +  // downloads, while non-privacy-aware listeners receive no sign they exist.
  1.2248 +  if (aDownload->mPrivate) {
  1.2249 +    return;
  1.2250 +  }
  1.2251 +
  1.2252 +  for (int32_t i = mListeners.Count() - 1; i >= 0; --i) {
  1.2253 +    mListeners[i]->OnDownloadStateChange(aOldState, aDownload);
  1.2254 +  }
  1.2255 +}
  1.2256 +
  1.2257 +void
  1.2258 +nsDownloadManager::NotifyListenersOnProgressChange(nsIWebProgress *aProgress,
  1.2259 +                                                   nsIRequest *aRequest,
  1.2260 +                                                   int64_t aCurSelfProgress,
  1.2261 +                                                   int64_t aMaxSelfProgress,
  1.2262 +                                                   int64_t aCurTotalProgress,
  1.2263 +                                                   int64_t aMaxTotalProgress,
  1.2264 +                                                   nsDownload *aDownload)
  1.2265 +{
  1.2266 +  for (int32_t i = mPrivacyAwareListeners.Count() - 1; i >= 0; --i) {
  1.2267 +    mPrivacyAwareListeners[i]->OnProgressChange(aProgress, aRequest, aCurSelfProgress,
  1.2268 +                                                aMaxSelfProgress, aCurTotalProgress,
  1.2269 +                                                aMaxTotalProgress, aDownload);
  1.2270 +  }
  1.2271 +
  1.2272 +  // Only privacy-aware listeners should receive notifications about private
  1.2273 +  // downloads, while non-privacy-aware listeners receive no sign they exist.
  1.2274 +  if (aDownload->mPrivate) {
  1.2275 +    return;
  1.2276 +  }
  1.2277 +
  1.2278 +  for (int32_t i = mListeners.Count() - 1; i >= 0; --i) {
  1.2279 +    mListeners[i]->OnProgressChange(aProgress, aRequest, aCurSelfProgress,
  1.2280 +                                    aMaxSelfProgress, aCurTotalProgress,
  1.2281 +                                    aMaxTotalProgress, aDownload);
  1.2282 +  }
  1.2283 +}
  1.2284 +
  1.2285 +void
  1.2286 +nsDownloadManager::NotifyListenersOnStateChange(nsIWebProgress *aProgress,
  1.2287 +                                                nsIRequest *aRequest,
  1.2288 +                                                uint32_t aStateFlags,
  1.2289 +                                                nsresult aStatus,
  1.2290 +                                                nsDownload *aDownload)
  1.2291 +{
  1.2292 +  for (int32_t i = mPrivacyAwareListeners.Count() - 1; i >= 0; --i) {
  1.2293 +    mPrivacyAwareListeners[i]->OnStateChange(aProgress, aRequest, aStateFlags, aStatus,
  1.2294 +                                             aDownload);
  1.2295 +  }
  1.2296 +
  1.2297 +  // Only privacy-aware listeners should receive notifications about private
  1.2298 +  // downloads, while non-privacy-aware listeners receive no sign they exist.
  1.2299 +  if (aDownload->mPrivate) {
  1.2300 +    return;
  1.2301 +  }
  1.2302 +
  1.2303 +  for (int32_t i = mListeners.Count() - 1; i >= 0; --i) {
  1.2304 +    mListeners[i]->OnStateChange(aProgress, aRequest, aStateFlags, aStatus,
  1.2305 +                                 aDownload);
  1.2306 +  }
  1.2307 +}
  1.2308 +
  1.2309 +////////////////////////////////////////////////////////////////////////////////
  1.2310 +//// nsINavHistoryObserver
  1.2311 +
  1.2312 +NS_IMETHODIMP
  1.2313 +nsDownloadManager::OnBeginUpdateBatch()
  1.2314 +{
  1.2315 +  // This method in not normally invoked when mUseJSTransfer is enabled, however
  1.2316 +  // we provide an extra check in case it is called manually by add-ons.
  1.2317 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2318 +
  1.2319 +  // We already have a transaction, so don't make another
  1.2320 +  if (mHistoryTransaction)
  1.2321 +    return NS_OK;
  1.2322 +
  1.2323 +  // Start a transaction that commits when deleted
  1.2324 +  mHistoryTransaction = new mozStorageTransaction(mDBConn, true);
  1.2325 +
  1.2326 +  return NS_OK;
  1.2327 +}
  1.2328 +
  1.2329 +NS_IMETHODIMP
  1.2330 +nsDownloadManager::OnEndUpdateBatch()
  1.2331 +{
  1.2332 +  // Get rid of the transaction and cause it to commit
  1.2333 +  mHistoryTransaction = nullptr;
  1.2334 +
  1.2335 +  return NS_OK;
  1.2336 +}
  1.2337 +
  1.2338 +NS_IMETHODIMP
  1.2339 +nsDownloadManager::OnVisit(nsIURI *aURI, int64_t aVisitID, PRTime aTime,
  1.2340 +                           int64_t aSessionID, int64_t aReferringID,
  1.2341 +                           uint32_t aTransitionType, const nsACString& aGUID,
  1.2342 +                           bool aHidden)
  1.2343 +{
  1.2344 +  return NS_OK;
  1.2345 +}
  1.2346 +
  1.2347 +NS_IMETHODIMP
  1.2348 +nsDownloadManager::OnTitleChanged(nsIURI *aURI,
  1.2349 +                                  const nsAString &aPageTitle,
  1.2350 +                                  const nsACString &aGUID)
  1.2351 +{
  1.2352 +  return NS_OK;
  1.2353 +}
  1.2354 +
  1.2355 +NS_IMETHODIMP
  1.2356 +nsDownloadManager::OnFrecencyChanged(nsIURI* aURI,
  1.2357 +                                     int32_t aNewFrecency,
  1.2358 +                                     const nsACString& aGUID,
  1.2359 +                                     bool aHidden,
  1.2360 +                                     PRTime aLastVisitDate)
  1.2361 +{
  1.2362 +  return NS_OK;
  1.2363 +}
  1.2364 +
  1.2365 +NS_IMETHODIMP
  1.2366 +nsDownloadManager::OnManyFrecenciesChanged()
  1.2367 +{
  1.2368 +  return NS_OK;
  1.2369 +}
  1.2370 +
  1.2371 +NS_IMETHODIMP
  1.2372 +nsDownloadManager::OnDeleteURI(nsIURI *aURI,
  1.2373 +                               const nsACString& aGUID,
  1.2374 +                               uint16_t aReason)
  1.2375 +{
  1.2376 +  // This method in not normally invoked when mUseJSTransfer is enabled, however
  1.2377 +  // we provide an extra check in case it is called manually by add-ons.
  1.2378 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2379 +
  1.2380 +  nsresult rv = RemoveDownloadsForURI(mGetIdsForURIStatement, aURI);
  1.2381 +  nsresult rv2 = RemoveDownloadsForURI(mGetPrivateIdsForURIStatement, aURI);
  1.2382 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2383 +  NS_ENSURE_SUCCESS(rv2, rv2);
  1.2384 +  return NS_OK;
  1.2385 +}
  1.2386 +
  1.2387 +NS_IMETHODIMP
  1.2388 +nsDownloadManager::OnClearHistory()
  1.2389 +{
  1.2390 +  return CleanUp();
  1.2391 +}
  1.2392 +
  1.2393 +NS_IMETHODIMP
  1.2394 +nsDownloadManager::OnPageChanged(nsIURI *aURI,
  1.2395 +                                 uint32_t aChangedAttribute,
  1.2396 +                                 const nsAString& aNewValue,
  1.2397 +                                 const nsACString &aGUID)
  1.2398 +{
  1.2399 +  return NS_OK;
  1.2400 +}
  1.2401 +
  1.2402 +NS_IMETHODIMP
  1.2403 +nsDownloadManager::OnDeleteVisits(nsIURI *aURI, PRTime aVisitTime,
  1.2404 +                                  const nsACString& aGUID,
  1.2405 +                                  uint16_t aReason, uint32_t aTransitionType)
  1.2406 +{
  1.2407 +  // Don't bother removing downloads until the page is removed.
  1.2408 +  return NS_OK;
  1.2409 +}
  1.2410 +
  1.2411 +////////////////////////////////////////////////////////////////////////////////
  1.2412 +//// nsIObserver
  1.2413 +
  1.2414 +NS_IMETHODIMP
  1.2415 +nsDownloadManager::Observe(nsISupports *aSubject,
  1.2416 +                           const char *aTopic,
  1.2417 +                           const char16_t *aData)
  1.2418 +{
  1.2419 +  // This method in not normally invoked when mUseJSTransfer is enabled, however
  1.2420 +  // we provide an extra check in case it is called manually by add-ons.
  1.2421 +  NS_ENSURE_STATE(!mUseJSTransfer);
  1.2422 +
  1.2423 +  // We need to count the active public downloads that could be lost
  1.2424 +  // by quitting, and add any active private ones as well, since per-window
  1.2425 +  // private browsing may be active.
  1.2426 +  int32_t currDownloadCount = mCurrentDownloads.Count();
  1.2427 +
  1.2428 +  // If we don't need to cancel all the downloads on quit, only count the ones
  1.2429 +  // that aren't resumable.
  1.2430 +  if (GetQuitBehavior() != QUIT_AND_CANCEL) {
  1.2431 +    for (int32_t i = currDownloadCount - 1; i >= 0; --i) {
  1.2432 +      if (mCurrentDownloads[i]->IsResumable()) {
  1.2433 +        currDownloadCount--;
  1.2434 +      }
  1.2435 +    }
  1.2436 +
  1.2437 +    // We have a count of the public, non-resumable downloads. Now we need
  1.2438 +    // to add the total number of private downloads, since they are in danger
  1.2439 +    // of being lost.
  1.2440 +    currDownloadCount += mCurrentPrivateDownloads.Count();
  1.2441 +  }
  1.2442 +
  1.2443 +  nsresult rv;
  1.2444 +  if (strcmp(aTopic, "oncancel") == 0) {
  1.2445 +    nsCOMPtr<nsIDownload> dl = do_QueryInterface(aSubject, &rv);
  1.2446 +    NS_ENSURE_SUCCESS(rv, rv);
  1.2447 +
  1.2448 +    dl->Cancel();
  1.2449 +  } else if (strcmp(aTopic, "profile-before-change") == 0) {
  1.2450 +    CloseAllDBs();
  1.2451 +  } else if (strcmp(aTopic, "quit-application") == 0) {
  1.2452 +    // Try to pause all downloads and, if appropriate, mark them as auto-resume
  1.2453 +    // unless user has specified that downloads should be canceled
  1.2454 +    enum QuitBehavior behavior = GetQuitBehavior();
  1.2455 +    if (behavior != QUIT_AND_CANCEL)
  1.2456 +      (void)PauseAllDownloads(bool(behavior != QUIT_AND_PAUSE));
  1.2457 +
  1.2458 +    // Remove downloads to break cycles and cancel downloads
  1.2459 +    (void)RemoveAllDownloads();
  1.2460 +
  1.2461 +   // Now that active downloads have been canceled, remove all completed or
  1.2462 +   // aborted downloads if the user's retention policy specifies it.
  1.2463 +    if (GetRetentionBehavior() == 1)
  1.2464 +      CleanUp();
  1.2465 +  } else if (strcmp(aTopic, "quit-application-requested") == 0 &&
  1.2466 +             currDownloadCount) {
  1.2467 +    nsCOMPtr<nsISupportsPRBool> cancelDownloads =
  1.2468 +      do_QueryInterface(aSubject, &rv);
  1.2469 +    NS_ENSURE_SUCCESS(rv, rv);
  1.2470 +#ifndef XP_MACOSX
  1.2471 +    ConfirmCancelDownloads(currDownloadCount, cancelDownloads,
  1.2472 +                           MOZ_UTF16("quitCancelDownloadsAlertTitle"),
  1.2473 +                           MOZ_UTF16("quitCancelDownloadsAlertMsgMultiple"),
  1.2474 +                           MOZ_UTF16("quitCancelDownloadsAlertMsg"),
  1.2475 +                           MOZ_UTF16("dontQuitButtonWin"));
  1.2476 +#else
  1.2477 +    ConfirmCancelDownloads(currDownloadCount, cancelDownloads,
  1.2478 +                           MOZ_UTF16("quitCancelDownloadsAlertTitle"),
  1.2479 +                           MOZ_UTF16("quitCancelDownloadsAlertMsgMacMultiple"),
  1.2480 +                           MOZ_UTF16("quitCancelDownloadsAlertMsgMac"),
  1.2481 +                           MOZ_UTF16("dontQuitButtonMac"));
  1.2482 +#endif
  1.2483 +  } else if (strcmp(aTopic, "offline-requested") == 0 && currDownloadCount) {
  1.2484 +    nsCOMPtr<nsISupportsPRBool> cancelDownloads =
  1.2485 +      do_QueryInterface(aSubject, &rv);
  1.2486 +    NS_ENSURE_SUCCESS(rv, rv);
  1.2487 +    ConfirmCancelDownloads(currDownloadCount, cancelDownloads,
  1.2488 +                           MOZ_UTF16("offlineCancelDownloadsAlertTitle"),
  1.2489 +                           MOZ_UTF16("offlineCancelDownloadsAlertMsgMultiple"),
  1.2490 +                           MOZ_UTF16("offlineCancelDownloadsAlertMsg"),
  1.2491 +                           MOZ_UTF16("dontGoOfflineButton"));
  1.2492 +  }
  1.2493 +  else if (strcmp(aTopic, NS_IOSERVICE_GOING_OFFLINE_TOPIC) == 0) {
  1.2494 +    // Pause all downloads, and mark them to auto-resume.
  1.2495 +    (void)PauseAllDownloads(true);
  1.2496 +  }
  1.2497 +  else if (strcmp(aTopic, NS_IOSERVICE_OFFLINE_STATUS_TOPIC) == 0 &&
  1.2498 +           nsDependentString(aData).EqualsLiteral(NS_IOSERVICE_ONLINE)) {
  1.2499 +    // We can now resume all downloads that are supposed to auto-resume.
  1.2500 +    (void)ResumeAllDownloads(false);
  1.2501 +  }
  1.2502 +  else if (strcmp(aTopic, "alertclickcallback") == 0) {
  1.2503 +    nsCOMPtr<nsIDownloadManagerUI> dmui =
  1.2504 +      do_GetService("@mozilla.org/download-manager-ui;1", &rv);
  1.2505 +    NS_ENSURE_SUCCESS(rv, rv);
  1.2506 +    return dmui->Show(nullptr, nullptr, nsIDownloadManagerUI::REASON_USER_INTERACTED,
  1.2507 +                      aData && NS_strcmp(aData, MOZ_UTF16("private")) == 0);
  1.2508 +  } else if (strcmp(aTopic, "sleep_notification") == 0 ||
  1.2509 +             strcmp(aTopic, "suspend_process_notification") == 0) {
  1.2510 +    // Pause downloads if we're sleeping, and mark the downloads as auto-resume
  1.2511 +    (void)PauseAllDownloads(true);
  1.2512 +  } else if (strcmp(aTopic, "wake_notification") == 0 ||
  1.2513 +             strcmp(aTopic, "resume_process_notification") == 0) {
  1.2514 +    int32_t resumeOnWakeDelay = 10000;
  1.2515 +    nsCOMPtr<nsIPrefBranch> pref = do_GetService(NS_PREFSERVICE_CONTRACTID);
  1.2516 +    if (pref)
  1.2517 +      (void)pref->GetIntPref(PREF_BDM_RESUMEONWAKEDELAY, &resumeOnWakeDelay);
  1.2518 +
  1.2519 +    // Wait a little bit before trying to resume to avoid resuming when network
  1.2520 +    // connections haven't restarted yet
  1.2521 +    mResumeOnWakeTimer = do_CreateInstance("@mozilla.org/timer;1");
  1.2522 +    if (resumeOnWakeDelay >= 0 && mResumeOnWakeTimer) {
  1.2523 +      (void)mResumeOnWakeTimer->InitWithFuncCallback(ResumeOnWakeCallback,
  1.2524 +        this, resumeOnWakeDelay, nsITimer::TYPE_ONE_SHOT);
  1.2525 +    }
  1.2526 +  } else if (strcmp(aTopic, "last-pb-context-exited") == 0) {
  1.2527 +    // Upon leaving private browsing mode, cancel all private downloads,
  1.2528 +    // remove all trace of them, and then blow away the private database
  1.2529 +    // and recreate a blank one.
  1.2530 +    RemoveAllDownloads(mCurrentPrivateDownloads);
  1.2531 +    InitPrivateDB();
  1.2532 +  } else if (strcmp(aTopic, "last-pb-context-exiting") == 0) {
  1.2533 +    // If there are active private downloads, prompt the user to confirm leaving
  1.2534 +    // private browsing mode (thereby cancelling them). Otherwise, silently proceed.
  1.2535 +    if (!mCurrentPrivateDownloads.Count())
  1.2536 +      return NS_OK;
  1.2537 +
  1.2538 +    nsCOMPtr<nsISupportsPRBool> cancelDownloads = do_QueryInterface(aSubject, &rv);
  1.2539 +    NS_ENSURE_SUCCESS(rv, rv);
  1.2540 +
  1.2541 +    ConfirmCancelDownloads(mCurrentPrivateDownloads.Count(), cancelDownloads,
  1.2542 +                           MOZ_UTF16("leavePrivateBrowsingCancelDownloadsAlertTitle"),
  1.2543 +                           MOZ_UTF16("leavePrivateBrowsingWindowsCancelDownloadsAlertMsgMultiple"),
  1.2544 +                           MOZ_UTF16("leavePrivateBrowsingWindowsCancelDownloadsAlertMsg"),
  1.2545 +                           MOZ_UTF16("dontLeavePrivateBrowsingButton"));
  1.2546 +  }
  1.2547 +
  1.2548 +  return NS_OK;
  1.2549 +}
  1.2550 +
  1.2551 +void
  1.2552 +nsDownloadManager::ConfirmCancelDownloads(int32_t aCount,
  1.2553 +                                          nsISupportsPRBool *aCancelDownloads,
  1.2554 +                                          const char16_t *aTitle,
  1.2555 +                                          const char16_t *aCancelMessageMultiple,
  1.2556 +                                          const char16_t *aCancelMessageSingle,
  1.2557 +                                          const char16_t *aDontCancelButton)
  1.2558 +{
  1.2559 +  // If user has already dismissed quit request, then do nothing
  1.2560 +  bool quitRequestCancelled = false;
  1.2561 +  aCancelDownloads->GetData(&quitRequestCancelled);
  1.2562 +  if (quitRequestCancelled)
  1.2563 +    return;
  1.2564 +
  1.2565 +  nsXPIDLString title, message, quitButton, dontQuitButton;
  1.2566 +
  1.2567 +  mBundle->GetStringFromName(aTitle, getter_Copies(title));
  1.2568 +
  1.2569 +  nsAutoString countString;
  1.2570 +  countString.AppendInt(aCount);
  1.2571 +  const char16_t *strings[1] = { countString.get() };
  1.2572 +  if (aCount > 1) {
  1.2573 +    mBundle->FormatStringFromName(aCancelMessageMultiple, strings, 1,
  1.2574 +                                  getter_Copies(message));
  1.2575 +    mBundle->FormatStringFromName(MOZ_UTF16("cancelDownloadsOKTextMultiple"),
  1.2576 +                                  strings, 1, getter_Copies(quitButton));
  1.2577 +  } else {
  1.2578 +    mBundle->GetStringFromName(aCancelMessageSingle, getter_Copies(message));
  1.2579 +    mBundle->GetStringFromName(MOZ_UTF16("cancelDownloadsOKText"),
  1.2580 +                               getter_Copies(quitButton));
  1.2581 +  }
  1.2582 +
  1.2583 +  mBundle->GetStringFromName(aDontCancelButton, getter_Copies(dontQuitButton));
  1.2584 +
  1.2585 +  // Get Download Manager window, to be parent of alert.
  1.2586 +  nsCOMPtr<nsIWindowMediator> wm = do_GetService(NS_WINDOWMEDIATOR_CONTRACTID);
  1.2587 +  nsCOMPtr<nsIDOMWindow> dmWindow;
  1.2588 +  if (wm) {
  1.2589 +    wm->GetMostRecentWindow(MOZ_UTF16("Download:Manager"),
  1.2590 +                            getter_AddRefs(dmWindow));
  1.2591 +  }
  1.2592 +
  1.2593 +  // Show alert.
  1.2594 +  nsCOMPtr<nsIPromptService> prompter(do_GetService(NS_PROMPTSERVICE_CONTRACTID));
  1.2595 +  if (prompter) {
  1.2596 +    int32_t flags = (nsIPromptService::BUTTON_TITLE_IS_STRING * nsIPromptService::BUTTON_POS_0) + (nsIPromptService::BUTTON_TITLE_IS_STRING * nsIPromptService::BUTTON_POS_1);
  1.2597 +    bool nothing = false;
  1.2598 +    int32_t button;
  1.2599 +    prompter->ConfirmEx(dmWindow, title, message, flags, quitButton.get(), dontQuitButton.get(), nullptr, nullptr, &nothing, &button);
  1.2600 +
  1.2601 +    aCancelDownloads->SetData(button == 1);
  1.2602 +  }
  1.2603 +}
  1.2604 +
  1.2605 +////////////////////////////////////////////////////////////////////////////////
  1.2606 +//// nsDownload
  1.2607 +
  1.2608 +NS_IMPL_CLASSINFO(nsDownload, nullptr, 0, NS_DOWNLOAD_CID)
  1.2609 +NS_IMPL_ISUPPORTS_CI(
  1.2610 +    nsDownload
  1.2611 +  , nsIDownload
  1.2612 +  , nsITransfer
  1.2613 +  , nsIWebProgressListener
  1.2614 +  , nsIWebProgressListener2
  1.2615 +)
  1.2616 +
  1.2617 +nsDownload::nsDownload() : mDownloadState(nsIDownloadManager::DOWNLOAD_NOTSTARTED),
  1.2618 +                           mID(0),
  1.2619 +                           mPercentComplete(0),
  1.2620 +                           mCurrBytes(0),
  1.2621 +                           mMaxBytes(-1),
  1.2622 +                           mStartTime(0),
  1.2623 +                           mLastUpdate(PR_Now() - (uint32_t)gUpdateInterval),
  1.2624 +                           mResumedAt(-1),
  1.2625 +                           mSpeed(0),
  1.2626 +                           mHasMultipleFiles(false),
  1.2627 +                           mPrivate(false),
  1.2628 +                           mAutoResume(DONT_RESUME)
  1.2629 +{
  1.2630 +}
  1.2631 +
  1.2632 +nsDownload::~nsDownload()
  1.2633 +{
  1.2634 +}
  1.2635 +
  1.2636 +NS_IMETHODIMP nsDownload::SetSha256Hash(const nsACString& aHash) {
  1.2637 +  MOZ_ASSERT(NS_IsMainThread(), "Must call SetSha256Hash on main thread");
  1.2638 +  // This will be used later to query the application reputation service.
  1.2639 +  mHash = aHash;
  1.2640 +  return NS_OK;
  1.2641 +}
  1.2642 +
  1.2643 +NS_IMETHODIMP nsDownload::SetSignatureInfo(nsIArray* aSignatureInfo) {
  1.2644 +  MOZ_ASSERT(NS_IsMainThread(), "Must call SetSignatureInfo on main thread");
  1.2645 +  // This will be used later to query the application reputation service.
  1.2646 +  mSignatureInfo = aSignatureInfo;
  1.2647 +  return NS_OK;
  1.2648 +}
  1.2649 +
  1.2650 +#ifdef MOZ_ENABLE_GIO
  1.2651 +static void gio_set_metadata_done(GObject *source_obj, GAsyncResult *res, gpointer user_data)
  1.2652 +{
  1.2653 +  GError *err = nullptr;
  1.2654 +  g_file_set_attributes_finish(G_FILE(source_obj), res, nullptr, &err);
  1.2655 +  if (err) {
  1.2656 +#ifdef DEBUG
  1.2657 +    NS_DebugBreak(NS_DEBUG_WARNING, "Set file metadata failed: ", err->message, __FILE__, __LINE__);
  1.2658 +#endif
  1.2659 +    g_error_free(err);
  1.2660 +  }
  1.2661 +}
  1.2662 +#endif
  1.2663 +
  1.2664 +nsresult
  1.2665 +nsDownload::SetState(DownloadState aState)
  1.2666 +{
  1.2667 +  NS_ASSERTION(mDownloadState != aState,
  1.2668 +               "Trying to set the download state to what it already is set to!");
  1.2669 +
  1.2670 +  int16_t oldState = mDownloadState;
  1.2671 +  mDownloadState = aState;
  1.2672 +
  1.2673 +  // We don't want to lose access to our member variables
  1.2674 +  nsRefPtr<nsDownload> kungFuDeathGrip = this;
  1.2675 +
  1.2676 +  // When the state changed listener is dispatched, queries to the database and
  1.2677 +  // the download manager api should reflect what the nsIDownload object would
  1.2678 +  // return. So, if a download is done (finished, canceled, etc.), it should
  1.2679 +  // first be removed from the current downloads.  We will also have to update
  1.2680 +  // the database *before* notifying listeners.  At this point, you can safely
  1.2681 +  // dispatch to the observers as well.
  1.2682 +  switch (aState) {
  1.2683 +    case nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL:
  1.2684 +    case nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY:
  1.2685 +    case nsIDownloadManager::DOWNLOAD_DIRTY:
  1.2686 +    case nsIDownloadManager::DOWNLOAD_CANCELED:
  1.2687 +    case nsIDownloadManager::DOWNLOAD_FAILED:
  1.2688 +#ifdef ANDROID
  1.2689 +      // If we still have a temp file, remove it
  1.2690 +      bool tempExists;
  1.2691 +      if (mTempFile && NS_SUCCEEDED(mTempFile->Exists(&tempExists)) && tempExists) {
  1.2692 +        nsresult rv = mTempFile->Remove(false);
  1.2693 +        NS_ENSURE_SUCCESS(rv, rv);
  1.2694 +      }
  1.2695 +#endif
  1.2696 +
  1.2697 +      // Transfers are finished, so break the reference cycle
  1.2698 +      Finalize();
  1.2699 +      break;
  1.2700 +#ifdef DOWNLOAD_SCANNER
  1.2701 +    case nsIDownloadManager::DOWNLOAD_SCANNING:
  1.2702 +    {
  1.2703 +      nsresult rv = mDownloadManager->mScanner ? mDownloadManager->mScanner->ScanDownload(this) : NS_ERROR_NOT_INITIALIZED;
  1.2704 +      // If we failed, then fall through to 'download finished'
  1.2705 +      if (NS_SUCCEEDED(rv))
  1.2706 +        break;
  1.2707 +      mDownloadState = aState = nsIDownloadManager::DOWNLOAD_FINISHED;
  1.2708 +    }
  1.2709 +#endif
  1.2710 +    case nsIDownloadManager::DOWNLOAD_FINISHED:
  1.2711 +    {
  1.2712 +      nsresult rv = ExecuteDesiredAction();
  1.2713 +      if (NS_FAILED(rv)) {
  1.2714 +        // We've failed to execute the desired action.  As a result, we should
  1.2715 +        // fail the download so the user can try again.
  1.2716 +        (void)FailDownload(rv, nullptr);
  1.2717 +        return rv;
  1.2718 +      }
  1.2719 +
  1.2720 +      // Now that we're done with handling the download, clean it up
  1.2721 +      Finalize();
  1.2722 +
  1.2723 +      nsCOMPtr<nsIPrefBranch> pref(do_GetService(NS_PREFSERVICE_CONTRACTID));
  1.2724 +
  1.2725 +      // Master pref to control this function.
  1.2726 +      bool showTaskbarAlert = true;
  1.2727 +      if (pref)
  1.2728 +        pref->GetBoolPref(PREF_BDM_SHOWALERTONCOMPLETE, &showTaskbarAlert);
  1.2729 +
  1.2730 +      if (showTaskbarAlert) {
  1.2731 +        int32_t alertInterval = 2000;
  1.2732 +        if (pref)
  1.2733 +          pref->GetIntPref(PREF_BDM_SHOWALERTINTERVAL, &alertInterval);
  1.2734 +
  1.2735 +        int64_t alertIntervalUSec = alertInterval * PR_USEC_PER_MSEC;
  1.2736 +        int64_t goat = PR_Now() - mStartTime;
  1.2737 +        showTaskbarAlert = goat > alertIntervalUSec;
  1.2738 +
  1.2739 +        int32_t size = mPrivate ?
  1.2740 +            mDownloadManager->mCurrentPrivateDownloads.Count() :
  1.2741 +            mDownloadManager->mCurrentDownloads.Count();
  1.2742 +        if (showTaskbarAlert && size == 0) {
  1.2743 +          nsCOMPtr<nsIAlertsService> alerts =
  1.2744 +            do_GetService("@mozilla.org/alerts-service;1");
  1.2745 +          if (alerts) {
  1.2746 +              nsXPIDLString title, message;
  1.2747 +
  1.2748 +              mDownloadManager->mBundle->GetStringFromName(
  1.2749 +                  MOZ_UTF16("downloadsCompleteTitle"),
  1.2750 +                  getter_Copies(title));
  1.2751 +              mDownloadManager->mBundle->GetStringFromName(
  1.2752 +                  MOZ_UTF16("downloadsCompleteMsg"),
  1.2753 +                  getter_Copies(message));
  1.2754 +
  1.2755 +              bool removeWhenDone =
  1.2756 +                mDownloadManager->GetRetentionBehavior() == 0;
  1.2757 +
  1.2758 +              // If downloads are automatically removed per the user's
  1.2759 +              // retention policy, there's no reason to make the text clickable
  1.2760 +              // because if it is, they'll click open the download manager and
  1.2761 +              // the items they downloaded will have been removed.
  1.2762 +              alerts->ShowAlertNotification(
  1.2763 +                  NS_LITERAL_STRING(DOWNLOAD_MANAGER_ALERT_ICON), title,
  1.2764 +                  message, !removeWhenDone,
  1.2765 +                  mPrivate ? NS_LITERAL_STRING("private") : NS_LITERAL_STRING("non-private"),
  1.2766 +                  mDownloadManager, EmptyString(), NS_LITERAL_STRING("auto"),
  1.2767 +                  EmptyString(), nullptr);
  1.2768 +            }
  1.2769 +        }
  1.2770 +      }
  1.2771 +
  1.2772 +#if defined(XP_WIN) || defined(XP_MACOSX) || defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK)
  1.2773 +      nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mTarget);
  1.2774 +      nsCOMPtr<nsIFile> file;
  1.2775 +      nsAutoString path;
  1.2776 +
  1.2777 +      if (fileURL &&
  1.2778 +          NS_SUCCEEDED(fileURL->GetFile(getter_AddRefs(file))) &&
  1.2779 +          file &&
  1.2780 +          NS_SUCCEEDED(file->GetPath(path))) {
  1.2781 +
  1.2782 +#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
  1.2783 +        // On Windows and Gtk, add the download to the system's "recent documents"
  1.2784 +        // list, with a pref to disable.
  1.2785 +        {
  1.2786 +          bool addToRecentDocs = true;
  1.2787 +          if (pref)
  1.2788 +            pref->GetBoolPref(PREF_BDM_ADDTORECENTDOCS, &addToRecentDocs);
  1.2789 +
  1.2790 +          if (addToRecentDocs && !mPrivate) {
  1.2791 +#ifdef XP_WIN
  1.2792 +            ::SHAddToRecentDocs(SHARD_PATHW, path.get());
  1.2793 +#elif defined(MOZ_WIDGET_GTK)
  1.2794 +            GtkRecentManager* manager = gtk_recent_manager_get_default();
  1.2795 +
  1.2796 +            gchar* uri = g_filename_to_uri(NS_ConvertUTF16toUTF8(path).get(),
  1.2797 +                                           nullptr, nullptr);
  1.2798 +            if (uri) {
  1.2799 +              gtk_recent_manager_add_item(manager, uri);
  1.2800 +              g_free(uri);
  1.2801 +            }
  1.2802 +#endif
  1.2803 +          }
  1.2804 +#ifdef MOZ_ENABLE_GIO
  1.2805 +          // Use GIO to store the source URI for later display in the file manager.
  1.2806 +          GFile* gio_file = g_file_new_for_path(NS_ConvertUTF16toUTF8(path).get());
  1.2807 +          nsCString source_uri;
  1.2808 +          mSource->GetSpec(source_uri);
  1.2809 +          GFileInfo *file_info = g_file_info_new();
  1.2810 +          g_file_info_set_attribute_string(file_info, "metadata::download-uri", source_uri.get());
  1.2811 +          g_file_set_attributes_async(gio_file,
  1.2812 +                                      file_info,
  1.2813 +                                      G_FILE_QUERY_INFO_NONE,
  1.2814 +                                      G_PRIORITY_DEFAULT,
  1.2815 +                                      nullptr, gio_set_metadata_done, nullptr);
  1.2816 +          g_object_unref(file_info);
  1.2817 +          g_object_unref(gio_file);
  1.2818 +#endif
  1.2819 +        }
  1.2820 +#endif
  1.2821 +#ifdef XP_MACOSX
  1.2822 +        // On OS X, make the downloads stack bounce.
  1.2823 +        CFStringRef observedObject = ::CFStringCreateWithCString(kCFAllocatorDefault,
  1.2824 +                                                 NS_ConvertUTF16toUTF8(path).get(),
  1.2825 +                                                 kCFStringEncodingUTF8);
  1.2826 +        CFNotificationCenterRef center = ::CFNotificationCenterGetDistributedCenter();
  1.2827 +        ::CFNotificationCenterPostNotification(center, CFSTR("com.apple.DownloadFileFinished"),
  1.2828 +                                               observedObject, nullptr, TRUE);
  1.2829 +        ::CFRelease(observedObject);
  1.2830 +#endif
  1.2831 +#ifdef MOZ_WIDGET_ANDROID
  1.2832 +        nsCOMPtr<nsIMIMEInfo> mimeInfo;
  1.2833 +        nsAutoCString contentType;
  1.2834 +        GetMIMEInfo(getter_AddRefs(mimeInfo));
  1.2835 +
  1.2836 +        if (mimeInfo)
  1.2837 +          mimeInfo->GetMIMEType(contentType);
  1.2838 +
  1.2839 +        mozilla::widget::android::GeckoAppShell::ScanMedia(path, NS_ConvertUTF8toUTF16(contentType));
  1.2840 +#endif
  1.2841 +      }
  1.2842 +
  1.2843 +#ifdef XP_WIN
  1.2844 +      // Adjust file attributes so that by default, new files are indexed
  1.2845 +      // by desktop search services. Skip off those that land in the temp
  1.2846 +      // folder.
  1.2847 +      nsCOMPtr<nsIFile> tempDir, fileDir;
  1.2848 +      rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(tempDir));
  1.2849 +      NS_ENSURE_SUCCESS(rv, rv);
  1.2850 +      (void)file->GetParent(getter_AddRefs(fileDir));
  1.2851 +
  1.2852 +      bool isTemp = false;
  1.2853 +      if (fileDir)
  1.2854 +        (void)fileDir->Equals(tempDir, &isTemp);
  1.2855 +
  1.2856 +      nsCOMPtr<nsILocalFileWin> localFileWin(do_QueryInterface(file));
  1.2857 +      if (!isTemp && localFileWin)
  1.2858 +        (void)localFileWin->SetFileAttributesWin(nsILocalFileWin::WFA_SEARCH_INDEXED);
  1.2859 +#endif
  1.2860 +
  1.2861 +#endif
  1.2862 +      // Now remove the download if the user's retention policy is "Remove when Done"
  1.2863 +      if (mDownloadManager->GetRetentionBehavior() == 0)
  1.2864 +        mDownloadManager->RemoveDownload(mGUID);
  1.2865 +    }
  1.2866 +    break;
  1.2867 +  default:
  1.2868 +    break;
  1.2869 +  }
  1.2870 +
  1.2871 +  // Before notifying the listener, we must update the database so that calls
  1.2872 +  // to it work out properly.
  1.2873 +  nsresult rv = UpdateDB();
  1.2874 +  NS_ENSURE_SUCCESS(rv, rv);
  1.2875 +
  1.2876 +  mDownloadManager->NotifyListenersOnDownloadStateChange(oldState, this);
  1.2877 +
  1.2878 +  switch (mDownloadState) {
  1.2879 +    case nsIDownloadManager::DOWNLOAD_DOWNLOADING:
  1.2880 +      // Only send the dl-start event to downloads that are actually starting.
  1.2881 +      if (oldState == nsIDownloadManager::DOWNLOAD_QUEUED) {
  1.2882 +        if (!mPrivate)
  1.2883 +          mDownloadManager->SendEvent(this, "dl-start");
  1.2884 +      }
  1.2885 +      break;
  1.2886 +    case nsIDownloadManager::DOWNLOAD_FAILED:
  1.2887 +      if (!mPrivate)
  1.2888 +        mDownloadManager->SendEvent(this, "dl-failed");
  1.2889 +      break;
  1.2890 +    case nsIDownloadManager::DOWNLOAD_SCANNING:
  1.2891 +      if (!mPrivate)
  1.2892 +        mDownloadManager->SendEvent(this, "dl-scanning");
  1.2893 +      break;
  1.2894 +    case nsIDownloadManager::DOWNLOAD_FINISHED:
  1.2895 +      if (!mPrivate)
  1.2896 +        mDownloadManager->SendEvent(this, "dl-done");
  1.2897 +      break;
  1.2898 +    case nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL:
  1.2899 +    case nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY:
  1.2900 +      if (!mPrivate)
  1.2901 +        mDownloadManager->SendEvent(this, "dl-blocked");
  1.2902 +      break;
  1.2903 +    case nsIDownloadManager::DOWNLOAD_DIRTY:
  1.2904 +      if (!mPrivate)
  1.2905 +        mDownloadManager->SendEvent(this, "dl-dirty");
  1.2906 +      break;
  1.2907 +    case nsIDownloadManager::DOWNLOAD_CANCELED:
  1.2908 +      if (!mPrivate)
  1.2909 +        mDownloadManager->SendEvent(this, "dl-cancel");
  1.2910 +      break;
  1.2911 +    default:
  1.2912 +      break;
  1.2913 +  }
  1.2914 +  return NS_OK;
  1.2915 +}
  1.2916 +
  1.2917 +////////////////////////////////////////////////////////////////////////////////
  1.2918 +//// nsIWebProgressListener2
  1.2919 +
  1.2920 +NS_IMETHODIMP
  1.2921 +nsDownload::OnProgressChange64(nsIWebProgress *aWebProgress,
  1.2922 +                               nsIRequest *aRequest,
  1.2923 +                               int64_t aCurSelfProgress,
  1.2924 +                               int64_t aMaxSelfProgress,
  1.2925 +                               int64_t aCurTotalProgress,
  1.2926 +                               int64_t aMaxTotalProgress)
  1.2927 +{
  1.2928 +  if (!mRequest)
  1.2929 +    mRequest = aRequest; // used for pause/resume
  1.2930 +
  1.2931 +  if (mDownloadState == nsIDownloadManager::DOWNLOAD_QUEUED) {
  1.2932 +    // Obtain the referrer
  1.2933 +    nsresult rv;
  1.2934 +    nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest));
  1.2935 +    nsCOMPtr<nsIURI> referrer = mReferrer;
  1.2936 +    if (channel)
  1.2937 +      (void)NS_GetReferrerFromChannel(channel, getter_AddRefs(mReferrer));
  1.2938 +
  1.2939 +    // Restore the original referrer if the new one isn't useful
  1.2940 +    if (!mReferrer)
  1.2941 +      mReferrer = referrer;
  1.2942 +
  1.2943 +    // If we have a MIME info, we know that exthandler has already added this to
  1.2944 +    // the history, but if we do not, we'll have to add it ourselves.
  1.2945 +    if (!mMIMEInfo && !mPrivate) {
  1.2946 +      nsCOMPtr<nsIDownloadHistory> dh =
  1.2947 +        do_GetService(NS_DOWNLOADHISTORY_CONTRACTID);
  1.2948 +      if (dh)
  1.2949 +        (void)dh->AddDownload(mSource, mReferrer, mStartTime, mTarget);
  1.2950 +    }
  1.2951 +
  1.2952 +    // Fetch the entityID, but if we can't get it, don't panic (non-resumable)
  1.2953 +    nsCOMPtr<nsIResumableChannel> resumableChannel(do_QueryInterface(aRequest));
  1.2954 +    if (resumableChannel)
  1.2955 +      (void)resumableChannel->GetEntityID(mEntityID);
  1.2956 +
  1.2957 +    // Before we update the state and dispatch state notifications, we want to
  1.2958 +    // ensure that we have the correct state for this download with regards to
  1.2959 +    // its percent completion and size.
  1.2960 +    SetProgressBytes(0, aMaxTotalProgress);
  1.2961 +
  1.2962 +    // Update the state and the database
  1.2963 +    rv = SetState(nsIDownloadManager::DOWNLOAD_DOWNLOADING);
  1.2964 +    NS_ENSURE_SUCCESS(rv, rv);
  1.2965 +  }
  1.2966 +
  1.2967 +  // filter notifications since they come in so frequently
  1.2968 +  PRTime now = PR_Now();
  1.2969 +  PRIntervalTime delta = now - mLastUpdate;
  1.2970 +  if (delta < gUpdateInterval)
  1.2971 +    return NS_OK;
  1.2972 +
  1.2973 +  mLastUpdate = now;
  1.2974 +
  1.2975 +  // Calculate the speed using the elapsed delta time and bytes downloaded
  1.2976 +  // during that time for more accuracy.
  1.2977 +  double elapsedSecs = double(delta) / PR_USEC_PER_SEC;
  1.2978 +  if (elapsedSecs > 0) {
  1.2979 +    double speed = double(aCurTotalProgress - mCurrBytes) / elapsedSecs;
  1.2980 +    if (mCurrBytes == 0) {
  1.2981 +      mSpeed = speed;
  1.2982 +    } else {
  1.2983 +      // Calculate 'smoothed average' of 10 readings.
  1.2984 +      mSpeed = mSpeed * 0.9 + speed * 0.1;
  1.2985 +    }
  1.2986 +  }
  1.2987 +
  1.2988 +  SetProgressBytes(aCurTotalProgress, aMaxTotalProgress);
  1.2989 +
  1.2990 +  // Report to the listener our real sizes
  1.2991 +  int64_t currBytes, maxBytes;
  1.2992 +  (void)GetAmountTransferred(&currBytes);
  1.2993 +  (void)GetSize(&maxBytes);
  1.2994 +  mDownloadManager->NotifyListenersOnProgressChange(
  1.2995 +    aWebProgress, aRequest, currBytes, maxBytes, currBytes, maxBytes, this);
  1.2996 +
  1.2997 +  // If the maximums are different, then there must be more than one file
  1.2998 +  if (aMaxSelfProgress != aMaxTotalProgress)
  1.2999 +    mHasMultipleFiles = true;
  1.3000 +
  1.3001 +  return NS_OK;
  1.3002 +}
  1.3003 +
  1.3004 +NS_IMETHODIMP
  1.3005 +nsDownload::OnRefreshAttempted(nsIWebProgress *aWebProgress,
  1.3006 +                               nsIURI *aUri,
  1.3007 +                               int32_t aDelay,
  1.3008 +                               bool aSameUri,
  1.3009 +                               bool *allowRefresh)
  1.3010 +{
  1.3011 +  *allowRefresh = true;
  1.3012 +  return NS_OK;
  1.3013 +}
  1.3014 +
  1.3015 +////////////////////////////////////////////////////////////////////////////////
  1.3016 +//// nsIWebProgressListener
  1.3017 +
  1.3018 +NS_IMETHODIMP
  1.3019 +nsDownload::OnProgressChange(nsIWebProgress *aWebProgress,
  1.3020 +                             nsIRequest *aRequest,
  1.3021 +                             int32_t aCurSelfProgress,
  1.3022 +                             int32_t aMaxSelfProgress,
  1.3023 +                             int32_t aCurTotalProgress,
  1.3024 +                             int32_t aMaxTotalProgress)
  1.3025 +{
  1.3026 +  return OnProgressChange64(aWebProgress, aRequest,
  1.3027 +                            aCurSelfProgress, aMaxSelfProgress,
  1.3028 +                            aCurTotalProgress, aMaxTotalProgress);
  1.3029 +}
  1.3030 +
  1.3031 +NS_IMETHODIMP
  1.3032 +nsDownload::OnLocationChange(nsIWebProgress *aWebProgress,
  1.3033 +                             nsIRequest *aRequest, nsIURI *aLocation,
  1.3034 +                             uint32_t aFlags)
  1.3035 +{
  1.3036 +  return NS_OK;
  1.3037 +}
  1.3038 +
  1.3039 +NS_IMETHODIMP
  1.3040 +nsDownload::OnStatusChange(nsIWebProgress *aWebProgress,
  1.3041 +                           nsIRequest *aRequest, nsresult aStatus,
  1.3042 +                           const char16_t *aMessage)
  1.3043 +{
  1.3044 +  if (NS_FAILED(aStatus))
  1.3045 +    return FailDownload(aStatus, aMessage);
  1.3046 +  return NS_OK;
  1.3047 +}
  1.3048 +
  1.3049 +NS_IMETHODIMP
  1.3050 +nsDownload::OnStateChange(nsIWebProgress *aWebProgress,
  1.3051 +                          nsIRequest *aRequest, uint32_t aStateFlags,
  1.3052 +                          nsresult aStatus)
  1.3053 +{
  1.3054 +  MOZ_ASSERT(NS_IsMainThread(), "Must call OnStateChange in main thread");
  1.3055 +
  1.3056 +  // We don't want to lose access to our member variables
  1.3057 +  nsRefPtr<nsDownload> kungFuDeathGrip = this;
  1.3058 +
  1.3059 +  // Check if we're starting a request; the NETWORK flag is necessary to not
  1.3060 +  // pick up the START of *each* file but only for the whole request
  1.3061 +  if ((aStateFlags & STATE_START) && (aStateFlags & STATE_IS_NETWORK)) {
  1.3062 +    nsresult rv;
  1.3063 +    nsCOMPtr<nsIHttpChannel> channel = do_QueryInterface(aRequest, &rv);
  1.3064 +    if (NS_SUCCEEDED(rv)) {
  1.3065 +      uint32_t status;
  1.3066 +      rv = channel->GetResponseStatus(&status);
  1.3067 +      // HTTP 450 - Blocked by parental control proxies
  1.3068 +      if (NS_SUCCEEDED(rv) && status == 450) {
  1.3069 +        // Cancel using the provided object
  1.3070 +        (void)Cancel();
  1.3071 +
  1.3072 +        // Fail the download
  1.3073 +        (void)SetState(nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL);
  1.3074 +      }
  1.3075 +    }
  1.3076 +  } else if ((aStateFlags & STATE_STOP) && (aStateFlags & STATE_IS_NETWORK) &&
  1.3077 +             IsFinishable()) {
  1.3078 +    // We got both STOP and NETWORK so that means the whole request is done
  1.3079 +    // (and not just a single file if there are multiple files)
  1.3080 +    if (NS_SUCCEEDED(aStatus)) {
  1.3081 +      // We can't completely trust the bytes we've added up because we might be
  1.3082 +      // missing on some/all of the progress updates (especially from cache).
  1.3083 +      // Our best bet is the file itself, but if for some reason it's gone or
  1.3084 +      // if we have multiple files, the next best is what we've calculated.
  1.3085 +      int64_t fileSize;
  1.3086 +      nsCOMPtr<nsIFile> file;
  1.3087 +      //  We need a nsIFile clone to deal with file size caching issues. :(
  1.3088 +      nsCOMPtr<nsIFile> clone;
  1.3089 +      if (!mHasMultipleFiles &&
  1.3090 +          NS_SUCCEEDED(GetTargetFile(getter_AddRefs(file))) &&
  1.3091 +          NS_SUCCEEDED(file->Clone(getter_AddRefs(clone))) &&
  1.3092 +          NS_SUCCEEDED(clone->GetFileSize(&fileSize)) && fileSize > 0) {
  1.3093 +        mCurrBytes = mMaxBytes = fileSize;
  1.3094 +
  1.3095 +        // If we resumed, keep the fact that we did and fix size calculations
  1.3096 +        if (WasResumed())
  1.3097 +          mResumedAt = 0;
  1.3098 +      } else if (mMaxBytes == -1) {
  1.3099 +        mMaxBytes = mCurrBytes;
  1.3100 +      } else {
  1.3101 +        mCurrBytes = mMaxBytes;
  1.3102 +      }
  1.3103 +
  1.3104 +      mPercentComplete = 100;
  1.3105 +      mLastUpdate = PR_Now();
  1.3106 +
  1.3107 +#ifdef DOWNLOAD_SCANNER
  1.3108 +      bool scan = true;
  1.3109 +      nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
  1.3110 +      if (prefs)
  1.3111 +        (void)prefs->GetBoolPref(PREF_BDM_SCANWHENDONE, &scan);
  1.3112 +
  1.3113 +      if (scan)
  1.3114 +        (void)SetState(nsIDownloadManager::DOWNLOAD_SCANNING);
  1.3115 +      else
  1.3116 +        (void)SetState(nsIDownloadManager::DOWNLOAD_FINISHED);
  1.3117 +#else
  1.3118 +      (void)SetState(nsIDownloadManager::DOWNLOAD_FINISHED);
  1.3119 +#endif
  1.3120 +    } else {
  1.3121 +      // We failed for some unknown reason -- fail with a generic message
  1.3122 +      (void)FailDownload(aStatus, nullptr);
  1.3123 +    }
  1.3124 +  }
  1.3125 +
  1.3126 +  mDownloadManager->NotifyListenersOnStateChange(aWebProgress, aRequest,
  1.3127 +                                                 aStateFlags, aStatus, this);
  1.3128 +  return NS_OK;
  1.3129 +}
  1.3130 +
  1.3131 +NS_IMETHODIMP
  1.3132 +nsDownload::OnSecurityChange(nsIWebProgress *aWebProgress,
  1.3133 +                             nsIRequest *aRequest, uint32_t aState)
  1.3134 +{
  1.3135 +  return NS_OK;
  1.3136 +}
  1.3137 +
  1.3138 +////////////////////////////////////////////////////////////////////////////////
  1.3139 +//// nsIDownload
  1.3140 +
  1.3141 +NS_IMETHODIMP
  1.3142 +nsDownload::Init(nsIURI *aSource,
  1.3143 +                 nsIURI *aTarget,
  1.3144 +                 const nsAString& aDisplayName,
  1.3145 +                 nsIMIMEInfo *aMIMEInfo,
  1.3146 +                 PRTime aStartTime,
  1.3147 +                 nsIFile *aTempFile,
  1.3148 +                 nsICancelable *aCancelable,
  1.3149 +                 bool aIsPrivate)
  1.3150 +{
  1.3151 +  NS_WARNING("Huh...how did we get here?!");
  1.3152 +  return NS_OK;
  1.3153 +}
  1.3154 +
  1.3155 +NS_IMETHODIMP
  1.3156 +nsDownload::GetState(int16_t *aState)
  1.3157 +{
  1.3158 +  *aState = mDownloadState;
  1.3159 +  return NS_OK;
  1.3160 +}
  1.3161 +
  1.3162 +NS_IMETHODIMP
  1.3163 +nsDownload::GetDisplayName(nsAString &aDisplayName)
  1.3164 +{
  1.3165 +  aDisplayName = mDisplayName;
  1.3166 +  return NS_OK;
  1.3167 +}
  1.3168 +
  1.3169 +NS_IMETHODIMP
  1.3170 +nsDownload::GetCancelable(nsICancelable **aCancelable)
  1.3171 +{
  1.3172 +  *aCancelable = mCancelable;
  1.3173 +  NS_IF_ADDREF(*aCancelable);
  1.3174 +  return NS_OK;
  1.3175 +}
  1.3176 +
  1.3177 +NS_IMETHODIMP
  1.3178 +nsDownload::GetTarget(nsIURI **aTarget)
  1.3179 +{
  1.3180 +  *aTarget = mTarget;
  1.3181 +  NS_IF_ADDREF(*aTarget);
  1.3182 +  return NS_OK;
  1.3183 +}
  1.3184 +
  1.3185 +NS_IMETHODIMP
  1.3186 +nsDownload::GetSource(nsIURI **aSource)
  1.3187 +{
  1.3188 +  *aSource = mSource;
  1.3189 +  NS_IF_ADDREF(*aSource);
  1.3190 +  return NS_OK;
  1.3191 +}
  1.3192 +
  1.3193 +NS_IMETHODIMP
  1.3194 +nsDownload::GetStartTime(int64_t *aStartTime)
  1.3195 +{
  1.3196 +  *aStartTime = mStartTime;
  1.3197 +  return NS_OK;
  1.3198 +}
  1.3199 +
  1.3200 +NS_IMETHODIMP
  1.3201 +nsDownload::GetPercentComplete(int32_t *aPercentComplete)
  1.3202 +{
  1.3203 +  *aPercentComplete = mPercentComplete;
  1.3204 +  return NS_OK;
  1.3205 +}
  1.3206 +
  1.3207 +NS_IMETHODIMP
  1.3208 +nsDownload::GetAmountTransferred(int64_t *aAmountTransferred)
  1.3209 +{
  1.3210 +  *aAmountTransferred = mCurrBytes + (WasResumed() ? mResumedAt : 0);
  1.3211 +  return NS_OK;
  1.3212 +}
  1.3213 +
  1.3214 +NS_IMETHODIMP
  1.3215 +nsDownload::GetSize(int64_t *aSize)
  1.3216 +{
  1.3217 +  *aSize = mMaxBytes + (WasResumed() && mMaxBytes != -1 ? mResumedAt : 0);
  1.3218 +  return NS_OK;
  1.3219 +}
  1.3220 +
  1.3221 +NS_IMETHODIMP
  1.3222 +nsDownload::GetMIMEInfo(nsIMIMEInfo **aMIMEInfo)
  1.3223 +{
  1.3224 +  *aMIMEInfo = mMIMEInfo;
  1.3225 +  NS_IF_ADDREF(*aMIMEInfo);
  1.3226 +  return NS_OK;
  1.3227 +}
  1.3228 +
  1.3229 +NS_IMETHODIMP
  1.3230 +nsDownload::GetTargetFile(nsIFile **aTargetFile)
  1.3231 +{
  1.3232 +  nsresult rv;
  1.3233 +
  1.3234 +  nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mTarget, &rv);
  1.3235 +  if (NS_FAILED(rv)) {
  1.3236 +    return rv;
  1.3237 +  }
  1.3238 +
  1.3239 +  nsCOMPtr<nsIFile> file;
  1.3240 +  rv = fileURL->GetFile(getter_AddRefs(file));
  1.3241 +  if (NS_FAILED(rv)) {
  1.3242 +    return rv;
  1.3243 +  }
  1.3244 +
  1.3245 +  file.forget(aTargetFile);
  1.3246 +  return rv;
  1.3247 +}
  1.3248 +
  1.3249 +NS_IMETHODIMP
  1.3250 +nsDownload::GetSpeed(double *aSpeed)
  1.3251 +{
  1.3252 +  *aSpeed = mSpeed;
  1.3253 +  return NS_OK;
  1.3254 +}
  1.3255 +
  1.3256 +NS_IMETHODIMP
  1.3257 +nsDownload::GetId(uint32_t *aId)
  1.3258 +{
  1.3259 +  if (mPrivate) {
  1.3260 +    return NS_ERROR_NOT_AVAILABLE;
  1.3261 +  }
  1.3262 +  *aId = mID;
  1.3263 +  return NS_OK;
  1.3264 +}
  1.3265 +
  1.3266 +NS_IMETHODIMP
  1.3267 +nsDownload::GetGuid(nsACString &aGUID)
  1.3268 +{
  1.3269 +  aGUID = mGUID;
  1.3270 +  return NS_OK;
  1.3271 +}
  1.3272 +
  1.3273 +NS_IMETHODIMP
  1.3274 +nsDownload::GetReferrer(nsIURI **referrer)
  1.3275 +{
  1.3276 +  NS_IF_ADDREF(*referrer = mReferrer);
  1.3277 +  return NS_OK;
  1.3278 +}
  1.3279 +
  1.3280 +NS_IMETHODIMP
  1.3281 +nsDownload::GetResumable(bool *resumable)
  1.3282 +{
  1.3283 +  *resumable = IsResumable();
  1.3284 +  return NS_OK;
  1.3285 +}
  1.3286 +
  1.3287 +NS_IMETHODIMP
  1.3288 +nsDownload::GetIsPrivate(bool *isPrivate)
  1.3289 +{
  1.3290 +  *isPrivate = mPrivate;
  1.3291 +  return NS_OK;
  1.3292 +}
  1.3293 +
  1.3294 +////////////////////////////////////////////////////////////////////////////////
  1.3295 +//// nsDownload Helper Functions
  1.3296 +
  1.3297 +void
  1.3298 +nsDownload::Finalize()
  1.3299 +{
  1.3300 +  // We're stopping, so break the cycle we created at download start
  1.3301 +  mCancelable = nullptr;
  1.3302 +
  1.3303 +  // Reset values that aren't needed anymore, so the DB can be updated as well
  1.3304 +  mEntityID.Truncate();
  1.3305 +  mTempFile = nullptr;
  1.3306 +
  1.3307 +  // Remove ourself from the active downloads
  1.3308 +  nsCOMArray<nsDownload>& currentDownloads = mPrivate ?
  1.3309 +    mDownloadManager->mCurrentPrivateDownloads :
  1.3310 +    mDownloadManager->mCurrentDownloads;
  1.3311 +  (void)currentDownloads.RemoveObject(this);
  1.3312 +
  1.3313 +  // Make sure we do not automatically resume
  1.3314 +  mAutoResume = DONT_RESUME;
  1.3315 +}
  1.3316 +
  1.3317 +nsresult
  1.3318 +nsDownload::ExecuteDesiredAction()
  1.3319 +{
  1.3320 +  // nsExternalHelperAppHandler is the only caller of AddDownload that sets a
  1.3321 +  // tempfile parameter. In this case, execute the desired action according to
  1.3322 +  // the saved mime info.
  1.3323 +  if (!mTempFile) {
  1.3324 +    return NS_OK;
  1.3325 +  }
  1.3326 +
  1.3327 +  // We need to bail if for some reason the temp file got removed
  1.3328 +  bool fileExists;
  1.3329 +  if (NS_FAILED(mTempFile->Exists(&fileExists)) || !fileExists)
  1.3330 +    return NS_ERROR_FILE_NOT_FOUND;
  1.3331 +
  1.3332 +  // Assume an unknown action is save to disk
  1.3333 +  nsHandlerInfoAction action = nsIMIMEInfo::saveToDisk;
  1.3334 +  if (mMIMEInfo) {
  1.3335 +    nsresult rv = mMIMEInfo->GetPreferredAction(&action);
  1.3336 +    NS_ENSURE_SUCCESS(rv, rv);
  1.3337 +  }
  1.3338 +
  1.3339 +  nsresult retVal = NS_OK;
  1.3340 +  switch (action) {
  1.3341 +    case nsIMIMEInfo::saveToDisk:
  1.3342 +      // Move the file to the proper location
  1.3343 +      retVal = MoveTempToTarget();
  1.3344 +      break;
  1.3345 +    case nsIMIMEInfo::useHelperApp:
  1.3346 +    case nsIMIMEInfo::useSystemDefault:
  1.3347 +      // For these cases we have to move the file to the target location and
  1.3348 +      // open with the appropriate application
  1.3349 +      retVal = OpenWithApplication();
  1.3350 +      break;
  1.3351 +    default:
  1.3352 +      break;
  1.3353 +  }
  1.3354 +
  1.3355 +  return retVal;
  1.3356 +}
  1.3357 +
  1.3358 +nsresult
  1.3359 +nsDownload::MoveTempToTarget()
  1.3360 +{
  1.3361 +  nsCOMPtr<nsIFile> target;
  1.3362 +  nsresult rv = GetTargetFile(getter_AddRefs(target));
  1.3363 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3364 +
  1.3365 +  // MoveTo will fail if the file already exists, but we've already obtained
  1.3366 +  // confirmation from the user that this is OK, so remove it if it exists.
  1.3367 +  bool fileExists;
  1.3368 +  if (NS_SUCCEEDED(target->Exists(&fileExists)) && fileExists) {
  1.3369 +    rv = target->Remove(false);
  1.3370 +    NS_ENSURE_SUCCESS(rv, rv);
  1.3371 +  }
  1.3372 +
  1.3373 +  // Extract the new leaf name from the file location
  1.3374 +  nsAutoString fileName;
  1.3375 +  rv = target->GetLeafName(fileName);
  1.3376 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3377 +  nsCOMPtr<nsIFile> dir;
  1.3378 +  rv = target->GetParent(getter_AddRefs(dir));
  1.3379 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3380 +  rv = mTempFile->MoveTo(dir, fileName);
  1.3381 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3382 +
  1.3383 +  return NS_OK;
  1.3384 +}
  1.3385 +
  1.3386 +nsresult
  1.3387 +nsDownload::OpenWithApplication()
  1.3388 +{
  1.3389 +  // First move the temporary file to the target location
  1.3390 +  nsCOMPtr<nsIFile> target;
  1.3391 +  nsresult rv = GetTargetFile(getter_AddRefs(target));
  1.3392 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3393 +
  1.3394 +  // Move the temporary file to the target location
  1.3395 +  rv = MoveTempToTarget();
  1.3396 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3397 +
  1.3398 +  // We do not verify the return value here because, irrespective of success
  1.3399 +  // or failure of the method, the deletion of temp file has to take place, as
  1.3400 +  // per the corresponding preference. But we store this separately as this is
  1.3401 +  // what we ultimately return from this function.
  1.3402 +  nsresult retVal = mMIMEInfo->LaunchWithFile(target);
  1.3403 +
  1.3404 +  bool deleteTempFileOnExit;
  1.3405 +  nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
  1.3406 +  if (!prefs || NS_FAILED(prefs->GetBoolPref(PREF_BH_DELETETEMPFILEONEXIT,
  1.3407 +                                             &deleteTempFileOnExit))) {
  1.3408 +    // No prefservice or no pref set; use default value
  1.3409 +#if !defined(XP_MACOSX)
  1.3410 +    // Mac users have been very verbal about temp files being deleted on
  1.3411 +    // app exit - they don't like it - but we'll continue to do this on
  1.3412 +    // other platforms for now.
  1.3413 +    deleteTempFileOnExit = true;
  1.3414 +#else
  1.3415 +    deleteTempFileOnExit = false;
  1.3416 +#endif
  1.3417 +  }
  1.3418 +
  1.3419 +  // Always schedule files to be deleted at the end of the private browsing
  1.3420 +  // mode, regardless of the value of the pref.
  1.3421 +  if (deleteTempFileOnExit || mPrivate) {
  1.3422 +    // Use the ExternalHelperAppService to push the temporary file to the list
  1.3423 +    // of files to be deleted on exit.
  1.3424 +    nsCOMPtr<nsPIExternalAppLauncher> appLauncher(do_GetService
  1.3425 +                    (NS_EXTERNALHELPERAPPSERVICE_CONTRACTID));
  1.3426 +
  1.3427 +    // Even if we are unable to get this service we return the result
  1.3428 +    // of LaunchWithFile() which makes more sense.
  1.3429 +    if (appLauncher) {
  1.3430 +      if (mPrivate) {
  1.3431 +        (void)appLauncher->DeleteTemporaryPrivateFileWhenPossible(target);
  1.3432 +      } else {
  1.3433 +        (void)appLauncher->DeleteTemporaryFileOnExit(target);
  1.3434 +      }
  1.3435 +    }
  1.3436 +  }
  1.3437 +
  1.3438 +  return retVal;
  1.3439 +}
  1.3440 +
  1.3441 +void
  1.3442 +nsDownload::SetStartTime(int64_t aStartTime)
  1.3443 +{
  1.3444 +  mStartTime = aStartTime;
  1.3445 +  mLastUpdate = aStartTime;
  1.3446 +}
  1.3447 +
  1.3448 +void
  1.3449 +nsDownload::SetProgressBytes(int64_t aCurrBytes, int64_t aMaxBytes)
  1.3450 +{
  1.3451 +  mCurrBytes = aCurrBytes;
  1.3452 +  mMaxBytes = aMaxBytes;
  1.3453 +
  1.3454 +  // Get the real bytes that include resume position
  1.3455 +  int64_t currBytes, maxBytes;
  1.3456 +  (void)GetAmountTransferred(&currBytes);
  1.3457 +  (void)GetSize(&maxBytes);
  1.3458 +
  1.3459 +  if (currBytes == maxBytes)
  1.3460 +    mPercentComplete = 100;
  1.3461 +  else if (maxBytes <= 0)
  1.3462 +    mPercentComplete = -1;
  1.3463 +  else
  1.3464 +    mPercentComplete = (int32_t)((double)currBytes / maxBytes * 100 + .5);
  1.3465 +}
  1.3466 +
  1.3467 +NS_IMETHODIMP
  1.3468 +nsDownload::Pause()
  1.3469 +{
  1.3470 +  if (!IsResumable())
  1.3471 +    return NS_ERROR_UNEXPECTED;
  1.3472 +
  1.3473 +  nsresult rv = CancelTransfer();
  1.3474 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3475 +
  1.3476 +  return SetState(nsIDownloadManager::DOWNLOAD_PAUSED);
  1.3477 +}
  1.3478 +
  1.3479 +nsresult
  1.3480 +nsDownload::CancelTransfer()
  1.3481 +{
  1.3482 +  nsresult rv = NS_OK;
  1.3483 +  if (mCancelable) {
  1.3484 +    rv = mCancelable->Cancel(NS_BINDING_ABORTED);
  1.3485 +    // we're done with this, so break the cycle
  1.3486 +    mCancelable = nullptr;
  1.3487 +  }
  1.3488 +
  1.3489 +  return rv;
  1.3490 +}
  1.3491 +
  1.3492 +NS_IMETHODIMP
  1.3493 +nsDownload::Cancel()
  1.3494 +{
  1.3495 +  // Don't cancel if download is already finished
  1.3496 +  if (IsFinished())
  1.3497 +    return NS_OK;
  1.3498 +
  1.3499 +  // Have the download cancel its connection
  1.3500 +  (void)CancelTransfer();
  1.3501 +
  1.3502 +  // Dump the temp file because we know we don't need the file anymore. The
  1.3503 +  // underlying transfer creating the file doesn't delete the file because it
  1.3504 +  // can't distinguish between a pause that cancels the transfer or a real
  1.3505 +  // cancel.
  1.3506 +  if (mTempFile) {
  1.3507 +    bool exists;
  1.3508 +    mTempFile->Exists(&exists);
  1.3509 +    if (exists)
  1.3510 +      mTempFile->Remove(false);
  1.3511 +  }
  1.3512 +
  1.3513 +  nsCOMPtr<nsIFile> file;
  1.3514 +  if (NS_SUCCEEDED(GetTargetFile(getter_AddRefs(file))))
  1.3515 +  {
  1.3516 +    bool exists;
  1.3517 +    file->Exists(&exists);
  1.3518 +    if (exists)
  1.3519 +      file->Remove(false);
  1.3520 +  }
  1.3521 +
  1.3522 +  nsresult rv = SetState(nsIDownloadManager::DOWNLOAD_CANCELED);
  1.3523 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3524 +
  1.3525 +  return NS_OK;
  1.3526 +}
  1.3527 +
  1.3528 +NS_IMETHODIMP
  1.3529 +nsDownload::Resume()
  1.3530 +{
  1.3531 +  if (!IsPaused() || !IsResumable())
  1.3532 +    return NS_ERROR_UNEXPECTED;
  1.3533 +
  1.3534 +  nsresult rv;
  1.3535 +  nsCOMPtr<nsIWebBrowserPersist> wbp =
  1.3536 +    do_CreateInstance("@mozilla.org/embedding/browser/nsWebBrowserPersist;1", &rv);
  1.3537 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3538 +
  1.3539 +  rv = wbp->SetPersistFlags(nsIWebBrowserPersist::PERSIST_FLAGS_APPEND_TO_FILE |
  1.3540 +                            nsIWebBrowserPersist::PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION);
  1.3541 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3542 +
  1.3543 +  // Create a new channel for the source URI
  1.3544 +  nsCOMPtr<nsIChannel> channel;
  1.3545 +  nsCOMPtr<nsIInterfaceRequestor> ir(do_QueryInterface(wbp));
  1.3546 +  rv = NS_NewChannel(getter_AddRefs(channel), mSource, nullptr, nullptr, ir);
  1.3547 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3548 +
  1.3549 +  nsCOMPtr<nsIPrivateBrowsingChannel> pbChannel = do_QueryInterface(channel);
  1.3550 +  if (pbChannel) {
  1.3551 +    pbChannel->SetPrivate(mPrivate);
  1.3552 +  }
  1.3553 +
  1.3554 +  // Make sure we can get a file, either the temporary or the real target, for
  1.3555 +  // both purposes of file size and a target to write to
  1.3556 +  nsCOMPtr<nsIFile> targetLocalFile(mTempFile);
  1.3557 +  if (!targetLocalFile) {
  1.3558 +    rv = GetTargetFile(getter_AddRefs(targetLocalFile));
  1.3559 +    NS_ENSURE_SUCCESS(rv, rv);
  1.3560 +  }
  1.3561 +
  1.3562 +  // Get the file size to be used as an offset, but if anything goes wrong
  1.3563 +  // along the way, we'll silently restart at 0.
  1.3564 +  int64_t fileSize;
  1.3565 +  //  We need a nsIFile clone to deal with file size caching issues. :(
  1.3566 +  nsCOMPtr<nsIFile> clone;
  1.3567 +  if (NS_FAILED(targetLocalFile->Clone(getter_AddRefs(clone))) ||
  1.3568 +      NS_FAILED(clone->GetFileSize(&fileSize)))
  1.3569 +    fileSize = 0;
  1.3570 +
  1.3571 +  // Set the channel to resume at the right position along with the entityID
  1.3572 +  nsCOMPtr<nsIResumableChannel> resumableChannel(do_QueryInterface(channel));
  1.3573 +  if (!resumableChannel)
  1.3574 +    return NS_ERROR_UNEXPECTED;
  1.3575 +  rv = resumableChannel->ResumeAt(fileSize, mEntityID);
  1.3576 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3577 +
  1.3578 +  // If we know the max size, we know what it should be when resuming
  1.3579 +  int64_t maxBytes;
  1.3580 +  GetSize(&maxBytes);
  1.3581 +  SetProgressBytes(0, maxBytes != -1 ? maxBytes - fileSize : -1);
  1.3582 +  // Track where we resumed because progress notifications restart at 0
  1.3583 +  mResumedAt = fileSize;
  1.3584 +
  1.3585 +  // Set the referrer
  1.3586 +  if (mReferrer) {
  1.3587 +    nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
  1.3588 +    if (httpChannel) {
  1.3589 +      rv = httpChannel->SetReferrer(mReferrer);
  1.3590 +      NS_ENSURE_SUCCESS(rv, rv);
  1.3591 +    }
  1.3592 +  }
  1.3593 +
  1.3594 +  // Creates a cycle that will be broken when the download finishes
  1.3595 +  mCancelable = wbp;
  1.3596 +  (void)wbp->SetProgressListener(this);
  1.3597 +
  1.3598 +  // Save the channel using nsIWBP
  1.3599 +  rv = wbp->SaveChannel(channel, targetLocalFile);
  1.3600 +  if (NS_FAILED(rv)) {
  1.3601 +    mCancelable = nullptr;
  1.3602 +    (void)wbp->SetProgressListener(nullptr);
  1.3603 +    return rv;
  1.3604 +  }
  1.3605 +
  1.3606 +  return SetState(nsIDownloadManager::DOWNLOAD_DOWNLOADING);
  1.3607 +}
  1.3608 +
  1.3609 +NS_IMETHODIMP
  1.3610 +nsDownload::Remove()
  1.3611 +{
  1.3612 +  return mDownloadManager->RemoveDownload(mGUID);
  1.3613 +}
  1.3614 +
  1.3615 +NS_IMETHODIMP
  1.3616 +nsDownload::Retry()
  1.3617 +{
  1.3618 +  return mDownloadManager->RetryDownload(mGUID);
  1.3619 +}
  1.3620 +
  1.3621 +bool
  1.3622 +nsDownload::IsPaused()
  1.3623 +{
  1.3624 +  return mDownloadState == nsIDownloadManager::DOWNLOAD_PAUSED;
  1.3625 +}
  1.3626 +
  1.3627 +bool
  1.3628 +nsDownload::IsResumable()
  1.3629 +{
  1.3630 +  return !mEntityID.IsEmpty();
  1.3631 +}
  1.3632 +
  1.3633 +bool
  1.3634 +nsDownload::WasResumed()
  1.3635 +{
  1.3636 +  return mResumedAt != -1;
  1.3637 +}
  1.3638 +
  1.3639 +bool
  1.3640 +nsDownload::ShouldAutoResume()
  1.3641 +{
  1.3642 +  return mAutoResume == AUTO_RESUME;
  1.3643 +}
  1.3644 +
  1.3645 +bool
  1.3646 +nsDownload::IsFinishable()
  1.3647 +{
  1.3648 +  return mDownloadState == nsIDownloadManager::DOWNLOAD_NOTSTARTED ||
  1.3649 +         mDownloadState == nsIDownloadManager::DOWNLOAD_QUEUED ||
  1.3650 +         mDownloadState == nsIDownloadManager::DOWNLOAD_DOWNLOADING;
  1.3651 +}
  1.3652 +
  1.3653 +bool
  1.3654 +nsDownload::IsFinished()
  1.3655 +{
  1.3656 +  return mDownloadState == nsIDownloadManager::DOWNLOAD_FINISHED;
  1.3657 +}
  1.3658 +
  1.3659 +nsresult
  1.3660 +nsDownload::UpdateDB()
  1.3661 +{
  1.3662 +  NS_ASSERTION(mID, "Download ID is stored as zero.  This is bad!");
  1.3663 +  NS_ASSERTION(mDownloadManager, "Egads!  We have no download manager!");
  1.3664 +
  1.3665 +  mozIStorageStatement *stmt = mPrivate ?
  1.3666 +    mDownloadManager->mUpdatePrivateDownloadStatement : mDownloadManager->mUpdateDownloadStatement;
  1.3667 +
  1.3668 +  nsAutoString tempPath;
  1.3669 +  if (mTempFile)
  1.3670 +    (void)mTempFile->GetPath(tempPath);
  1.3671 +  nsresult rv = stmt->BindStringByName(NS_LITERAL_CSTRING("tempPath"), tempPath);
  1.3672 +
  1.3673 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("startTime"), mStartTime);
  1.3674 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3675 +
  1.3676 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("endTime"), mLastUpdate);
  1.3677 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3678 +
  1.3679 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), mDownloadState);
  1.3680 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3681 +
  1.3682 +  if (mReferrer) {
  1.3683 +    nsAutoCString referrer;
  1.3684 +    rv = mReferrer->GetSpec(referrer);
  1.3685 +    NS_ENSURE_SUCCESS(rv, rv);
  1.3686 +    rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("referrer"), referrer);
  1.3687 +  } else {
  1.3688 +    rv = stmt->BindNullByName(NS_LITERAL_CSTRING("referrer"));
  1.3689 +  }
  1.3690 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3691 +
  1.3692 +  rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("entityID"), mEntityID);
  1.3693 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3694 +
  1.3695 +  int64_t currBytes;
  1.3696 +  (void)GetAmountTransferred(&currBytes);
  1.3697 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("currBytes"), currBytes);
  1.3698 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3699 +
  1.3700 +  int64_t maxBytes;
  1.3701 +  (void)GetSize(&maxBytes);
  1.3702 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("maxBytes"), maxBytes);
  1.3703 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3704 +
  1.3705 +  rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), mAutoResume);
  1.3706 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3707 +
  1.3708 +  rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mID);
  1.3709 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3710 +
  1.3711 +  return stmt->Execute();
  1.3712 +}
  1.3713 +
  1.3714 +nsresult
  1.3715 +nsDownload::FailDownload(nsresult aStatus, const char16_t *aMessage)
  1.3716 +{
  1.3717 +  // Grab the bundle before potentially losing our member variables
  1.3718 +  nsCOMPtr<nsIStringBundle> bundle = mDownloadManager->mBundle;
  1.3719 +
  1.3720 +  (void)SetState(nsIDownloadManager::DOWNLOAD_FAILED);
  1.3721 +
  1.3722 +  // Get title for alert.
  1.3723 +  nsXPIDLString title;
  1.3724 +  nsresult rv = bundle->GetStringFromName(
  1.3725 +    MOZ_UTF16("downloadErrorAlertTitle"), getter_Copies(title));
  1.3726 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3727 +
  1.3728 +  // Get a generic message if we weren't supplied one
  1.3729 +  nsXPIDLString message;
  1.3730 +  message = aMessage;
  1.3731 +  if (message.IsEmpty()) {
  1.3732 +    rv = bundle->GetStringFromName(
  1.3733 +      MOZ_UTF16("downloadErrorGeneric"), getter_Copies(message));
  1.3734 +    NS_ENSURE_SUCCESS(rv, rv);
  1.3735 +  }
  1.3736 +
  1.3737 +  // Get Download Manager window to be parent of alert
  1.3738 +  nsCOMPtr<nsIWindowMediator> wm =
  1.3739 +    do_GetService(NS_WINDOWMEDIATOR_CONTRACTID, &rv);
  1.3740 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3741 +  nsCOMPtr<nsIDOMWindow> dmWindow;
  1.3742 +  rv = wm->GetMostRecentWindow(MOZ_UTF16("Download:Manager"),
  1.3743 +                               getter_AddRefs(dmWindow));
  1.3744 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3745 +
  1.3746 +  // Show alert
  1.3747 +  nsCOMPtr<nsIPromptService> prompter =
  1.3748 +    do_GetService("@mozilla.org/embedcomp/prompt-service;1", &rv);
  1.3749 +  NS_ENSURE_SUCCESS(rv, rv);
  1.3750 +  return prompter->Alert(dmWindow, title, message);
  1.3751 +}

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