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gecko-dev/toolkit/components/downloads/nsDownloadManager.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Util.h"
#include "mozIStorageService.h"
#include "nsIAlertsService.h"
#include "nsIClassInfoImpl.h"
#include "nsIDOMWindow.h"
#include "nsIDownloadHistory.h"
#include "nsIDownloadManagerUI.h"
#include "nsIMIMEService.h"
#include "nsIParentalControlsService.h"
#include "nsIPrefService.h"
#include "nsIPrivateBrowsingService.h"
#include "nsIPromptService.h"
#include "nsIResumableChannel.h"
#include "nsIWebBrowserPersist.h"
#include "nsIWindowMediator.h"
#include "nsILocalFileWin.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsArrayEnumerator.h"
#include "nsCExternalHandlerService.h"
#include "nsDirectoryServiceDefs.h"
#include "nsDownloadManager.h"
#include "nsNetUtil.h"
#include "mozStorageCID.h"
#include "nsDocShellCID.h"
#include "nsEmbedCID.h"
#include "nsToolkitCompsCID.h"
#ifdef XP_WIN
#include <shlobj.h>
#ifdef DOWNLOAD_SCANNER
#include "nsDownloadScanner.h"
#endif
#endif
#ifdef XP_MACOSX
#include <CoreFoundation/CoreFoundation.h>
#endif
#ifdef MOZ_WIDGET_ANDROID
#include "AndroidBridge.h"
#endif
#ifdef MOZ_WIDGET_GTK2
#include <gtk/gtk.h>
#endif
using namespace mozilla;
#define DOWNLOAD_MANAGER_BUNDLE "chrome://mozapps/locale/downloads/downloads.properties"
#define DOWNLOAD_MANAGER_ALERT_ICON "chrome://mozapps/skin/downloads/downloadIcon.png"
#define PREF_BDM_SHOWALERTONCOMPLETE "browser.download.manager.showAlertOnComplete"
#define PREF_BDM_SHOWALERTINTERVAL "browser.download.manager.showAlertInterval"
#define PREF_BDM_RETENTION "browser.download.manager.retention"
#define PREF_BDM_QUITBEHAVIOR "browser.download.manager.quitBehavior"
#define PREF_BDM_ADDTORECENTDOCS "browser.download.manager.addToRecentDocs"
#define PREF_BDM_SCANWHENDONE "browser.download.manager.scanWhenDone"
#define PREF_BDM_RESUMEONWAKEDELAY "browser.download.manager.resumeOnWakeDelay"
#define PREF_BH_DELETETEMPFILEONEXIT "browser.helperApps.deleteTempFileOnExit"
static const PRInt64 gUpdateInterval = 400 * PR_USEC_PER_MSEC;
#define DM_SCHEMA_VERSION 8
#define DM_DB_NAME NS_LITERAL_STRING("downloads.sqlite")
#define DM_DB_CORRUPT_FILENAME NS_LITERAL_STRING("downloads.sqlite.corrupt")
#define NS_SYSTEMINFO_CONTRACTID "@mozilla.org/system-info;1"
////////////////////////////////////////////////////////////////////////////////
//// nsDownloadManager
NS_IMPL_ISUPPORTS4(
nsDownloadManager
, nsIDownloadManager
, nsINavHistoryObserver
, nsIObserver
, nsISupportsWeakReference
)
nsDownloadManager *nsDownloadManager::gDownloadManagerService = nsnull;
nsDownloadManager *
nsDownloadManager::GetSingleton()
{
if (gDownloadManagerService) {
NS_ADDREF(gDownloadManagerService);
return gDownloadManagerService;
}
gDownloadManagerService = new nsDownloadManager();
if (gDownloadManagerService) {
#if defined(MOZ_WIDGET_GTK2)
g_type_init();
#endif
NS_ADDREF(gDownloadManagerService);
if (NS_FAILED(gDownloadManagerService->Init()))
NS_RELEASE(gDownloadManagerService);
}
return gDownloadManagerService;
}
nsDownloadManager::~nsDownloadManager()
{
#ifdef DOWNLOAD_SCANNER
if (mScanner) {
delete mScanner;
mScanner = nsnull;
}
#endif
gDownloadManagerService = nsnull;
}
nsresult
nsDownloadManager::ResumeRetry(nsDownload *aDl)
{
// Keep a reference in case we need to cancel the download
nsRefPtr<nsDownload> dl = aDl;
// Try to resume the active download
nsresult rv = dl->Resume();
// If not, try to retry the download
if (NS_FAILED(rv)) {
// First cancel the download so it's no longer active
rv = CancelDownload(dl->mID);
// Then retry it
if (NS_SUCCEEDED(rv))
rv = RetryDownload(dl->mID);
}
return rv;
}
nsresult
nsDownloadManager::PauseAllDownloads(bool aSetResume)
{
nsresult retVal = NS_OK;
for (PRInt32 i = mCurrentDownloads.Count() - 1; i >= 0; --i) {
nsRefPtr<nsDownload> dl = mCurrentDownloads[i];
// Only pause things that need to be paused
if (!dl->IsPaused()) {
// Set auto-resume before pausing so that it gets into the DB
dl->mAutoResume = aSetResume ? nsDownload::AUTO_RESUME :
nsDownload::DONT_RESUME;
// Try to pause the download but don't bail now if we fail
nsresult rv = dl->Pause();
if (NS_FAILED(rv))
retVal = rv;
}
}
return retVal;
}
nsresult
nsDownloadManager::ResumeAllDownloads(bool aResumeAll)
{
nsresult retVal = NS_OK;
for (PRInt32 i = mCurrentDownloads.Count() - 1; i >= 0; --i) {
nsRefPtr<nsDownload> dl = mCurrentDownloads[i];
// If aResumeAll is true, then resume everything; otherwise, check if the
// download should auto-resume
if (aResumeAll || dl->ShouldAutoResume()) {
// Reset auto-resume before retrying so that it gets into the DB through
// ResumeRetry's eventual call to SetState. We clear the value now so we
// don't accidentally query completed downloads that were previously
// auto-resumed (and try to resume them).
dl->mAutoResume = nsDownload::DONT_RESUME;
// Try to resume/retry the download but don't bail now if we fail
nsresult rv = ResumeRetry(dl);
if (NS_FAILED(rv))
retVal = rv;
}
}
return retVal;
}
nsresult
nsDownloadManager::RemoveAllDownloads()
{
nsresult rv = NS_OK;
for (PRInt32 i = mCurrentDownloads.Count() - 1; i >= 0; --i) {
nsRefPtr<nsDownload> dl = mCurrentDownloads[0];
nsresult result;
if (dl->IsPaused() && GetQuitBehavior() != QUIT_AND_CANCEL)
result = mCurrentDownloads.RemoveObject(dl);
else
result = CancelDownload(dl->mID);
// Track the failure, but don't miss out on other downloads
if (NS_FAILED(result))
rv = result;
}
return rv;
}
nsresult
nsDownloadManager::RemoveDownloadsForURI(nsIURI *aURI)
{
mozStorageStatementScoper scope(mGetIdsForURIStatement);
nsCAutoString source;
nsresult rv = aURI->GetSpec(source);
NS_ENSURE_SUCCESS(rv, rv);
rv = mGetIdsForURIStatement->BindUTF8StringByName(
NS_LITERAL_CSTRING("source"), source);
NS_ENSURE_SUCCESS(rv, rv);
bool hasMore = false;
nsAutoTArray<PRInt64, 4> downloads;
// Get all the downloads that match the provided URI
while (NS_SUCCEEDED(mGetIdsForURIStatement->ExecuteStep(&hasMore)) &&
hasMore) {
PRInt64 downloadId;
rv = mGetIdsForURIStatement->GetInt64(0, &downloadId);
NS_ENSURE_SUCCESS(rv, rv);
downloads.AppendElement(downloadId);
}
// Remove each download ignoring any failure so we reach other downloads
for (PRInt32 i = downloads.Length(); --i >= 0; )
(void)RemoveDownload(downloads[i]);
return NS_OK;
}
void // static
nsDownloadManager::ResumeOnWakeCallback(nsITimer *aTimer, void *aClosure)
{
// Resume the downloads that were set to autoResume
nsDownloadManager *dlMgr = static_cast<nsDownloadManager *>(aClosure);
(void)dlMgr->ResumeAllDownloads(false);
}
already_AddRefed<mozIStorageConnection>
nsDownloadManager::GetFileDBConnection(nsIFile *dbFile) const
{
NS_ASSERTION(dbFile, "GetFileDBConnection called with an invalid nsIFile");
nsCOMPtr<mozIStorageService> storage =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
NS_ENSURE_TRUE(storage, nsnull);
nsCOMPtr<mozIStorageConnection> conn;
nsresult rv = storage->OpenDatabase(dbFile, getter_AddRefs(conn));
if (rv == NS_ERROR_FILE_CORRUPTED) {
// delete and try again, since we don't care so much about losing a user's
// download history
rv = dbFile->Remove(false);
NS_ENSURE_SUCCESS(rv, nsnull);
rv = storage->OpenDatabase(dbFile, getter_AddRefs(conn));
}
NS_ENSURE_SUCCESS(rv, nsnull);
return conn.forget();
}
already_AddRefed<mozIStorageConnection>
nsDownloadManager::GetMemoryDBConnection() const
{
nsCOMPtr<mozIStorageService> storage =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
NS_ENSURE_TRUE(storage, nsnull);
nsCOMPtr<mozIStorageConnection> conn;
nsresult rv = storage->OpenSpecialDatabase("memory", getter_AddRefs(conn));
NS_ENSURE_SUCCESS(rv, nsnull);
return conn.forget();
}
void
nsDownloadManager::CloseDB()
{
DebugOnly<nsresult> rv = mGetIdsForURIStatement->Finalize();
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = mUpdateDownloadStatement->Finalize();
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = mDBConn->AsyncClose(nsnull);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
nsresult
nsDownloadManager::InitMemoryDB()
{
bool ready = false;
if (mDBConn && NS_SUCCEEDED(mDBConn->GetConnectionReady(&ready)) && ready)
CloseDB();
mDBConn = GetMemoryDBConnection();
if (!mDBConn)
return NS_ERROR_NOT_AVAILABLE;
nsresult rv = CreateTable();
NS_ENSURE_SUCCESS(rv, rv);
mDBType = DATABASE_MEMORY;
return NS_OK;
}
nsresult
nsDownloadManager::InitFileDB()
{
nsresult rv;
nsCOMPtr<nsIFile> dbFile;
rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
getter_AddRefs(dbFile));
NS_ENSURE_SUCCESS(rv, rv);
rv = dbFile->Append(DM_DB_NAME);
NS_ENSURE_SUCCESS(rv, rv);
bool ready = false;
if (mDBConn && NS_SUCCEEDED(mDBConn->GetConnectionReady(&ready)) && ready)
CloseDB();
mDBConn = GetFileDBConnection(dbFile);
NS_ENSURE_TRUE(mDBConn, NS_ERROR_NOT_AVAILABLE);
bool tableExists;
rv = mDBConn->TableExists(NS_LITERAL_CSTRING("moz_downloads"), &tableExists);
NS_ENSURE_SUCCESS(rv, rv);
if (!tableExists) {
rv = CreateTable();
NS_ENSURE_SUCCESS(rv, rv);
mDBType = DATABASE_DISK;
return NS_OK;
}
mDBType = DATABASE_DISK;
// Checking the database schema now
PRInt32 schemaVersion;
rv = mDBConn->GetSchemaVersion(&schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
// Changing the database? Be sure to do these two things!
// 1) Increment DM_SCHEMA_VERSION
// 2) Implement the proper downgrade/upgrade code for the current version
switch (schemaVersion) {
// Upgrading
// Every time you increment the database schema, you need to implement
// the upgrading code from the previous version to the new one.
// Also, don't forget to make a unit test to test your upgrading code!
case 1: // Drop a column (iconURL) from the database (bug 385875)
{
// Safely wrap this in a transaction so we don't hose the whole DB
mozStorageTransaction safeTransaction(mDBConn, true);
// Create a temporary table that will store the existing records
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE moz_downloads_backup ("
"id INTEGER PRIMARY KEY, "
"name TEXT, "
"source TEXT, "
"target TEXT, "
"startTime INTEGER, "
"endTime INTEGER, "
"state INTEGER"
")"));
NS_ENSURE_SUCCESS(rv, rv);
// Insert into a temporary table
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO moz_downloads_backup "
"SELECT id, name, source, target, startTime, endTime, state "
"FROM moz_downloads"));
NS_ENSURE_SUCCESS(rv, rv);
// Drop the old table
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE moz_downloads"));
NS_ENSURE_SUCCESS(rv, rv);
// Now recreate it with this schema version
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE moz_downloads ("
"id INTEGER PRIMARY KEY, "
"name TEXT, "
"source TEXT, "
"target TEXT, "
"startTime INTEGER, "
"endTime INTEGER, "
"state INTEGER"
")"));
NS_ENSURE_SUCCESS(rv, rv);
// Insert the data back into it
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO moz_downloads "
"SELECT id, name, source, target, startTime, endTime, state "
"FROM moz_downloads_backup"));
NS_ENSURE_SUCCESS(rv, rv);
// And drop our temporary table
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE moz_downloads_backup"));
NS_ENSURE_SUCCESS(rv, rv);
// Finally, update the schemaVersion variable and the database schema
schemaVersion = 2;
rv = mDBConn->SetSchemaVersion(schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to the next upgrade
case 2: // Add referrer column to the database
{
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN referrer TEXT"));
NS_ENSURE_SUCCESS(rv, rv);
// Finally, update the schemaVersion variable and the database schema
schemaVersion = 3;
rv = mDBConn->SetSchemaVersion(schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to the next upgrade
case 3: // This version adds a column to the database (entityID)
{
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN entityID TEXT"));
NS_ENSURE_SUCCESS(rv, rv);
// Finally, update the schemaVersion variable and the database schema
schemaVersion = 4;
rv = mDBConn->SetSchemaVersion(schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to the next upgrade
case 4: // This version adds a column to the database (tempPath)
{
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN tempPath TEXT"));
NS_ENSURE_SUCCESS(rv, rv);
// Finally, update the schemaVersion variable and the database schema
schemaVersion = 5;
rv = mDBConn->SetSchemaVersion(schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to the next upgrade
case 5: // This version adds two columns for tracking transfer progress
{
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN currBytes INTEGER NOT NULL DEFAULT 0"));
NS_ENSURE_SUCCESS(rv, rv);
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN maxBytes INTEGER NOT NULL DEFAULT -1"));
NS_ENSURE_SUCCESS(rv, rv);
// Finally, update the schemaVersion variable and the database schema
schemaVersion = 6;
rv = mDBConn->SetSchemaVersion(schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to the next upgrade
case 6: // This version adds three columns to DB (MIME type related info)
{
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN mimeType TEXT"));
NS_ENSURE_SUCCESS(rv, rv);
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN preferredApplication TEXT"));
NS_ENSURE_SUCCESS(rv, rv);
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN preferredAction INTEGER NOT NULL DEFAULT 0"));
NS_ENSURE_SUCCESS(rv, rv);
// Finally, update the schemaVersion variable and the database schema
schemaVersion = 7;
rv = mDBConn->SetSchemaVersion(schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to next upgrade
case 7: // This version adds a column to remember to auto-resume downloads
{
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_downloads "
"ADD COLUMN autoResume INTEGER NOT NULL DEFAULT 0"));
NS_ENSURE_SUCCESS(rv, rv);
// Finally, update the schemaVersion variable and the database schema
schemaVersion = 8;
rv = mDBConn->SetSchemaVersion(schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to the next upgrade
// Extra sanity checking for developers
#ifndef DEBUG
case DM_SCHEMA_VERSION:
#endif
break;
case 0:
{
NS_WARNING("Could not get download database's schema version!");
// The table may still be usable - someone may have just messed with the
// schema version, so let's just treat this like a downgrade and verify
// that the needed columns are there. If they aren't there, we'll drop
// the table anyway.
rv = mDBConn->SetSchemaVersion(DM_SCHEMA_VERSION);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fallthrough to downgrade check
// Downgrading
// If columns have been added to the table, we can still use the ones we
// understand safely. If columns have been deleted or alterd, we just
// drop the table and start from scratch. If you change how a column
// should be interpreted, make sure you also change its name so this
// check will catch it.
default:
{
nsCOMPtr<mozIStorageStatement> stmt;
rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT id, name, source, target, tempPath, startTime, endTime, state, "
"referrer, entityID, currBytes, maxBytes, mimeType, "
"preferredApplication, preferredAction, autoResume "
"FROM moz_downloads"), getter_AddRefs(stmt));
if (NS_SUCCEEDED(rv))
break;
// if the statement fails, that means all the columns were not there.
// First we backup the database
nsCOMPtr<mozIStorageService> storage =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
NS_ENSURE_TRUE(storage, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIFile> backup;
rv = storage->BackupDatabaseFile(dbFile, DM_DB_CORRUPT_FILENAME, nsnull,
getter_AddRefs(backup));
NS_ENSURE_SUCCESS(rv, rv);
// Then we dump it
rv = mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE moz_downloads"));
NS_ENSURE_SUCCESS(rv, rv);
rv = CreateTable();
NS_ENSURE_SUCCESS(rv, rv);
}
break;
}
return NS_OK;
}
nsresult
nsDownloadManager::CreateTable()
{
nsresult rv = mDBConn->SetSchemaVersion(DM_SCHEMA_VERSION);
if (NS_FAILED(rv)) return rv;
return mDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE moz_downloads ("
"id INTEGER PRIMARY KEY, "
"name TEXT, "
"source TEXT, "
"target TEXT, "
"tempPath TEXT, "
"startTime INTEGER, "
"endTime INTEGER, "
"state INTEGER, "
"referrer TEXT, "
"entityID TEXT, "
"currBytes INTEGER NOT NULL DEFAULT 0, "
"maxBytes INTEGER NOT NULL DEFAULT -1, "
"mimeType TEXT, "
"preferredApplication TEXT, "
"preferredAction INTEGER NOT NULL DEFAULT 0, "
"autoResume INTEGER NOT NULL DEFAULT 0"
")"));
}
nsresult
nsDownloadManager::RestoreDatabaseState()
{
// Restore downloads that were in a scanning state. We can assume that they
// have been dealt with by the virus scanner
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE moz_downloads "
"SET state = :state "
"WHERE state = :state_cond"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_FINISHED);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state_cond"), nsIDownloadManager::DOWNLOAD_SCANNING);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
// Convert supposedly-active downloads into downloads that should auto-resume
rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE moz_downloads "
"SET autoResume = :autoResume "
"WHERE state = :notStarted "
"OR state = :queued "
"OR state = :downloading"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), nsDownload::AUTO_RESUME);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("notStarted"), nsIDownloadManager::DOWNLOAD_NOTSTARTED);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("queued"), nsIDownloadManager::DOWNLOAD_QUEUED);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("downloading"), nsIDownloadManager::DOWNLOAD_DOWNLOADING);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
// Switch any download that is supposed to automatically resume and is in a
// finished state to *not* automatically resume. See Bug 409179 for details.
rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE moz_downloads "
"SET autoResume = :autoResume "
"WHERE state = :state "
"AND autoResume = :autoResume_cond"),
getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), nsDownload::DONT_RESUME);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_FINISHED);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume_cond"), nsDownload::AUTO_RESUME);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
nsDownloadManager::RestoreActiveDownloads()
{
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT id "
"FROM moz_downloads "
"WHERE (state = :state AND LENGTH(entityID) > 0) "
"OR autoResume != :autoResume"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_PAUSED);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), nsDownload::DONT_RESUME);
NS_ENSURE_SUCCESS(rv, rv);
nsresult retVal = NS_OK;
bool hasResults;
while (NS_SUCCEEDED(stmt->ExecuteStep(&hasResults)) && hasResults) {
nsRefPtr<nsDownload> dl;
// Keep trying to add even if we fail one, but make sure to return failure.
// Additionally, be careful to not call anything that tries to change the
// database because we're iterating over a live statement.
if (NS_FAILED(GetDownloadFromDB(stmt->AsInt32(0), getter_AddRefs(dl))) ||
NS_FAILED(AddToCurrentDownloads(dl)))
retVal = NS_ERROR_FAILURE;
}
// Try to resume only the downloads that should auto-resume
rv = ResumeAllDownloads(false);
NS_ENSURE_SUCCESS(rv, rv);
return retVal;
}
PRInt64
nsDownloadManager::AddDownloadToDB(const nsAString &aName,
const nsACString &aSource,
const nsACString &aTarget,
const nsAString &aTempPath,
PRInt64 aStartTime,
PRInt64 aEndTime,
const nsACString &aMimeType,
const nsACString &aPreferredApp,
nsHandlerInfoAction aPreferredAction)
{
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO moz_downloads "
"(name, source, target, tempPath, startTime, endTime, state, "
"mimeType, preferredApplication, preferredAction) VALUES "
"(:name, :source, :target, :tempPath, :startTime, :endTime, :state, "
":mimeType, :preferredApplication, :preferredAction)"),
getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), aName);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("source"), aSource);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("target"), aTarget);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("tempPath"), aTempPath);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("startTime"), aStartTime);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("endTime"), aEndTime);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), nsIDownloadManager::DOWNLOAD_NOTSTARTED);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("mimeType"), aMimeType);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("preferredApplication"), aPreferredApp);
NS_ENSURE_SUCCESS(rv, 0);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("preferredAction"), aPreferredAction);
NS_ENSURE_SUCCESS(rv, 0);
bool hasMore;
rv = stmt->ExecuteStep(&hasMore); // we want to keep our lock
NS_ENSURE_SUCCESS(rv, 0);
PRInt64 id = 0;
rv = mDBConn->GetLastInsertRowID(&id);
NS_ENSURE_SUCCESS(rv, 0);
// lock on DB from statement will be released once we return
return id;
}
nsresult
nsDownloadManager::InitDB()
{
nsresult rv = NS_OK;
switch (mDBType) {
case DATABASE_MEMORY:
rv = InitMemoryDB();
break;
case DATABASE_DISK:
rv = InitFileDB();
break;
default:
NS_ERROR("Unexpected value encountered for nsDownloadManager::mDBType");
break;
}
NS_ENSURE_SUCCESS(rv, rv);
rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE moz_downloads "
"SET tempPath = :tempPath, startTime = :startTime, endTime = :endTime, "
"state = :state, referrer = :referrer, entityID = :entityID, "
"currBytes = :currBytes, maxBytes = :maxBytes, autoResume = :autoResume "
"WHERE id = :id"), getter_AddRefs(mUpdateDownloadStatement));
NS_ENSURE_SUCCESS(rv, rv);
rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT id "
"FROM moz_downloads "
"WHERE source = :source"), getter_AddRefs(mGetIdsForURIStatement));
NS_ENSURE_SUCCESS(rv, rv);
return rv;
}
nsresult
nsDownloadManager::Init()
{
// Clean up any old downloads.rdf files from before Firefox 3
{
nsCOMPtr<nsIFile> oldDownloadsFile;
bool fileExists;
if (NS_SUCCEEDED(NS_GetSpecialDirectory(NS_APP_DOWNLOADS_50_FILE,
getter_AddRefs(oldDownloadsFile))) &&
NS_SUCCEEDED(oldDownloadsFile->Exists(&fileExists)) &&
fileExists) {
(void)oldDownloadsFile->Remove(false);
}
}
mObserverService = mozilla::services::GetObserverService();
if (!mObserverService)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIStringBundleService> bundleService =
mozilla::services::GetStringBundleService();
if (!bundleService)
return NS_ERROR_FAILURE;
nsresult rv = InitDB();
NS_ENSURE_SUCCESS(rv, rv);
rv = bundleService->CreateBundle(DOWNLOAD_MANAGER_BUNDLE,
getter_AddRefs(mBundle));
NS_ENSURE_SUCCESS(rv, rv);
#ifdef DOWNLOAD_SCANNER
mScanner = new nsDownloadScanner();
if (!mScanner)
return NS_ERROR_OUT_OF_MEMORY;
rv = mScanner->Init();
if (NS_FAILED(rv)) {
delete mScanner;
mScanner = nsnull;
}
#endif
// Do things *after* initializing various download manager properties such as
// restoring downloads to a consistent state
rv = RestoreDatabaseState();
NS_ENSURE_SUCCESS(rv, rv);
rv = RestoreActiveDownloads();
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "Failed to restore all active downloads");
nsCOMPtr<nsIPrivateBrowsingService> pbs =
do_GetService(NS_PRIVATE_BROWSING_SERVICE_CONTRACTID);
if (pbs) {
(void)pbs->GetPrivateBrowsingEnabled(&mInPrivateBrowsing);
if (mInPrivateBrowsing)
OnEnterPrivateBrowsingMode();
}
nsCOMPtr<nsINavHistoryService> history =
do_GetService(NS_NAVHISTORYSERVICE_CONTRACTID);
(void)mObserverService->NotifyObservers(
static_cast<nsIDownloadManager *>(this),
"download-manager-initialized",
nsnull);
// The following AddObserver calls must be the last lines in this function,
// because otherwise, this function may fail (and thus, this object would be not
// completely initialized), but the observerservice would still keep a reference
// to us and notify us about shutdown, which may cause crashes.
// failure to add an observer is not critical
(void)mObserverService->AddObserver(this, "quit-application", true);
(void)mObserverService->AddObserver(this, "quit-application-requested", true);
(void)mObserverService->AddObserver(this, "offline-requested", true);
(void)mObserverService->AddObserver(this, "sleep_notification", true);
(void)mObserverService->AddObserver(this, "wake_notification", true);
(void)mObserverService->AddObserver(this, "profile-before-change", true);
(void)mObserverService->AddObserver(this, NS_IOSERVICE_GOING_OFFLINE_TOPIC, true);
(void)mObserverService->AddObserver(this, NS_IOSERVICE_OFFLINE_STATUS_TOPIC, true);
(void)mObserverService->AddObserver(this, NS_PRIVATE_BROWSING_REQUEST_TOPIC, true);
(void)mObserverService->AddObserver(this, NS_PRIVATE_BROWSING_SWITCH_TOPIC, true);
if (history)
(void)history->AddObserver(this, true);
return NS_OK;
}
PRInt32
nsDownloadManager::GetRetentionBehavior()
{
// We use 0 as the default, which is "remove when done"
nsresult rv;
nsCOMPtr<nsIPrefBranch> pref = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, 0);
PRInt32 val;
rv = pref->GetIntPref(PREF_BDM_RETENTION, &val);
NS_ENSURE_SUCCESS(rv, 0);
// Allow the Downloads Panel to change the retention behavior. We do this to
// allow proper migration to the new feature when using the same profile on
// multiple versions of the product (bug 697678). Implementation note: in
// order to allow observers to change the retention value, we have to pass an
// object in the aSubject parameter, we cannot use aData for that.
nsCOMPtr<nsISupportsPRInt32> retentionBehavior =
do_CreateInstance(NS_SUPPORTS_PRINT32_CONTRACTID);
retentionBehavior->SetData(val);
(void)mObserverService->NotifyObservers(retentionBehavior,
"download-manager-change-retention",
nsnull);
retentionBehavior->GetData(&val);
return val;
}
enum nsDownloadManager::QuitBehavior
nsDownloadManager::GetQuitBehavior()
{
// We use 0 as the default, which is "remember and resume the download"
nsresult rv;
nsCOMPtr<nsIPrefBranch> pref = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, QUIT_AND_RESUME);
PRInt32 val;
rv = pref->GetIntPref(PREF_BDM_QUITBEHAVIOR, &val);
NS_ENSURE_SUCCESS(rv, QUIT_AND_RESUME);
switch (val) {
case 1:
return QUIT_AND_PAUSE;
case 2:
return QUIT_AND_CANCEL;
default:
return QUIT_AND_RESUME;
}
}
nsresult
nsDownloadManager::GetDownloadFromDB(PRUint32 aID, nsDownload **retVal)
{
NS_ASSERTION(!FindDownload(aID),
"If it is a current download, you should not call this method!");
// First, let's query the database and see if it even exists
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT id, state, startTime, source, target, tempPath, name, referrer, "
"entityID, currBytes, maxBytes, mimeType, preferredAction, "
"preferredApplication, autoResume "
"FROM moz_downloads "
"WHERE id = :id"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), aID);
NS_ENSURE_SUCCESS(rv, rv);
bool hasResults = false;
rv = stmt->ExecuteStep(&hasResults);
if (NS_FAILED(rv) || !hasResults)
return NS_ERROR_NOT_AVAILABLE;
// We have a download, so lets create it
nsRefPtr<nsDownload> dl = new nsDownload();
if (!dl)
return NS_ERROR_OUT_OF_MEMORY;
PRInt32 i = 0;
// Setting all properties of the download now
dl->mCancelable = nsnull;
dl->mID = stmt->AsInt64(i++);
dl->mDownloadState = stmt->AsInt32(i++);
dl->mStartTime = stmt->AsInt64(i++);
nsCString source;
stmt->GetUTF8String(i++, source);
rv = NS_NewURI(getter_AddRefs(dl->mSource), source);
NS_ENSURE_SUCCESS(rv, rv);
nsCString target;
stmt->GetUTF8String(i++, target);
rv = NS_NewURI(getter_AddRefs(dl->mTarget), target);
NS_ENSURE_SUCCESS(rv, rv);
nsString tempPath;
stmt->GetString(i++, tempPath);
if (!tempPath.IsEmpty()) {
rv = NS_NewLocalFile(tempPath, true, getter_AddRefs(dl->mTempFile));
NS_ENSURE_SUCCESS(rv, rv);
}
stmt->GetString(i++, dl->mDisplayName);
nsCString referrer;
rv = stmt->GetUTF8String(i++, referrer);
if (NS_SUCCEEDED(rv) && !referrer.IsEmpty()) {
rv = NS_NewURI(getter_AddRefs(dl->mReferrer), referrer);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = stmt->GetUTF8String(i++, dl->mEntityID);
NS_ENSURE_SUCCESS(rv, rv);
PRInt64 currBytes = stmt->AsInt64(i++);
PRInt64 maxBytes = stmt->AsInt64(i++);
dl->SetProgressBytes(currBytes, maxBytes);
// Build mMIMEInfo only if the mimeType in DB is not empty
nsCAutoString mimeType;
rv = stmt->GetUTF8String(i++, mimeType);
NS_ENSURE_SUCCESS(rv, rv);
if (!mimeType.IsEmpty()) {
nsCOMPtr<nsIMIMEService> mimeService =
do_GetService(NS_MIMESERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = mimeService->GetFromTypeAndExtension(mimeType, EmptyCString(),
getter_AddRefs(dl->mMIMEInfo));
NS_ENSURE_SUCCESS(rv, rv);
nsHandlerInfoAction action = stmt->AsInt32(i++);
rv = dl->mMIMEInfo->SetPreferredAction(action);
NS_ENSURE_SUCCESS(rv, rv);
nsCAutoString persistentDescriptor;
rv = stmt->GetUTF8String(i++, persistentDescriptor);
NS_ENSURE_SUCCESS(rv, rv);
if (!persistentDescriptor.IsEmpty()) {
nsCOMPtr<nsILocalHandlerApp> handler =
do_CreateInstance(NS_LOCALHANDLERAPP_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> localExecutable;
rv = NS_NewNativeLocalFile(EmptyCString(), false,
getter_AddRefs(localExecutable));
NS_ENSURE_SUCCESS(rv, rv);
rv = localExecutable->SetPersistentDescriptor(persistentDescriptor);
NS_ENSURE_SUCCESS(rv, rv);
rv = handler->SetExecutable(localExecutable);
NS_ENSURE_SUCCESS(rv, rv);
rv = dl->mMIMEInfo->SetPreferredApplicationHandler(handler);
NS_ENSURE_SUCCESS(rv, rv);
}
} else {
// Compensate for the i++s skipped in the true block
i += 2;
}
dl->mAutoResume =
static_cast<enum nsDownload::AutoResume>(stmt->AsInt32(i++));
// Addrefing and returning
NS_ADDREF(*retVal = dl);
return NS_OK;
}
nsresult
nsDownloadManager::AddToCurrentDownloads(nsDownload *aDl)
{
if (!mCurrentDownloads.AppendObject(aDl))
return NS_ERROR_OUT_OF_MEMORY;
aDl->mDownloadManager = this;
return NS_OK;
}
void
nsDownloadManager::SendEvent(nsDownload *aDownload, const char *aTopic)
{
(void)mObserverService->NotifyObservers(aDownload, aTopic, nsnull);
}
////////////////////////////////////////////////////////////////////////////////
//// nsIDownloadManager
NS_IMETHODIMP
nsDownloadManager::GetActiveDownloadCount(PRInt32 *aResult)
{
*aResult = mCurrentDownloads.Count();
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::GetActiveDownloads(nsISimpleEnumerator **aResult)
{
return NS_NewArrayEnumerator(aResult, mCurrentDownloads);
}
/**
* For platforms where helper apps use the downloads directory (i.e. mobile),
* this should be kept in sync with nsExternalHelperAppService.cpp
*/
NS_IMETHODIMP
nsDownloadManager::GetDefaultDownloadsDirectory(nsIFile **aResult)
{
nsCOMPtr<nsIFile> downloadDir;
nsresult rv;
nsCOMPtr<nsIProperties> dirService =
do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
// OSX 10.4:
// Desktop
// OSX 10.5:
// User download directory
// Vista:
// Downloads
// XP/2K:
// My Documents/Downloads
// Linux:
// XDG user dir spec, with a fallback to Home/Downloads
nsXPIDLString folderName;
mBundle->GetStringFromName(NS_LITERAL_STRING("downloadsFolder").get(),
getter_Copies(folderName));
#if defined (XP_MACOSX)
rv = dirService->Get(NS_OSX_DEFAULT_DOWNLOAD_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
NS_ENSURE_SUCCESS(rv, rv);
#elif defined(XP_WIN)
rv = dirService->Get(NS_WIN_DEFAULT_DOWNLOAD_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
NS_ENSURE_SUCCESS(rv, rv);
// Check the os version
nsCOMPtr<nsIPropertyBag2> infoService =
do_GetService(NS_SYSTEMINFO_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 version;
NS_NAMED_LITERAL_STRING(osVersion, "version");
rv = infoService->GetPropertyAsInt32(osVersion, &version);
NS_ENSURE_SUCCESS(rv, rv);
if (version < 6) { // XP/2K
// First get "My Documents"
rv = dirService->Get(NS_WIN_PERSONAL_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
NS_ENSURE_SUCCESS(rv, rv);
rv = downloadDir->Append(folderName);
NS_ENSURE_SUCCESS(rv, rv);
// This could be the first time we are creating the downloads folder in My
// Documents, so make sure it exists.
bool exists;
rv = downloadDir->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
if (!exists) {
rv = downloadDir->Create(nsIFile::DIRECTORY_TYPE, 0755);
NS_ENSURE_SUCCESS(rv, rv);
}
}
#elif defined(XP_UNIX)
#if defined(MOZ_PLATFORM_MAEMO)
// As maemo does not follow the XDG "standard" (as usually desktop
// Linux distros do) neither has a working $HOME/Desktop folder
// for us to fallback into, "$HOME/MyDocs/.documents/" is the folder
// we found most apropriate to be the default target folder for downloads
// on the platform.
rv = dirService->Get(NS_UNIX_XDG_DOCUMENTS_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
#elif defined(MOZ_WIDGET_ANDROID)
// Android doesn't have a $HOME directory, and by default we only have
// write access to /data/data/org.mozilla.{$APP} and /sdcard
char* downloadDirPath = getenv("DOWNLOADS_DIRECTORY");
if (downloadDirPath) {
rv = NS_NewNativeLocalFile(nsDependentCString(downloadDirPath),
true, getter_AddRefs(downloadDir));
NS_ENSURE_SUCCESS(rv, rv);
}
else {
rv = NS_ERROR_FAILURE;
}
#else
rv = dirService->Get(NS_UNIX_DEFAULT_DOWNLOAD_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
// fallback to Home/Downloads
if (NS_FAILED(rv)) {
rv = dirService->Get(NS_UNIX_HOME_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
NS_ENSURE_SUCCESS(rv, rv);
rv = downloadDir->Append(folderName);
NS_ENSURE_SUCCESS(rv, rv);
}
#endif
#else
rv = dirService->Get(NS_OS_HOME_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
NS_ENSURE_SUCCESS(rv, rv);
rv = downloadDir->Append(folderName);
NS_ENSURE_SUCCESS(rv, rv);
#endif
downloadDir.forget(aResult);
return NS_OK;
}
#define NS_BRANCH_DOWNLOAD "browser.download."
#define NS_PREF_FOLDERLIST "folderList"
#define NS_PREF_DIR "dir"
NS_IMETHODIMP
nsDownloadManager::GetUserDownloadsDirectory(nsIFile **aResult)
{
nsresult rv;
nsCOMPtr<nsIProperties> dirService =
do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIPrefService> prefService =
do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIPrefBranch> prefBranch;
rv = prefService->GetBranch(NS_BRANCH_DOWNLOAD,
getter_AddRefs(prefBranch));
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 val;
rv = prefBranch->GetIntPref(NS_PREF_FOLDERLIST,
&val);
NS_ENSURE_SUCCESS(rv, rv);
switch(val) {
case 0: // Desktop
{
nsCOMPtr<nsIFile> downloadDir;
nsCOMPtr<nsIProperties> dirService =
do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = dirService->Get(NS_OS_DESKTOP_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(downloadDir));
NS_ENSURE_SUCCESS(rv, rv);
downloadDir.forget(aResult);
return NS_OK;
}
break;
case 1: // Downloads
return GetDefaultDownloadsDirectory(aResult);
case 2: // Custom
{
nsCOMPtr<nsIFile> customDirectory;
prefBranch->GetComplexValue(NS_PREF_DIR,
NS_GET_IID(nsIFile),
getter_AddRefs(customDirectory));
if (customDirectory) {
bool exists = false;
(void)customDirectory->Exists(&exists);
if (!exists) {
rv = customDirectory->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_SUCCEEDED(rv)) {
customDirectory.forget(aResult);
return NS_OK;
}
// Create failed, so it still doesn't exist. Fall out and get the
// default downloads directory.
}
bool writable = false;
bool directory = false;
(void)customDirectory->IsWritable(&writable);
(void)customDirectory->IsDirectory(&directory);
if (exists && writable && directory) {
customDirectory.forget(aResult);
return NS_OK;
}
}
rv = GetDefaultDownloadsDirectory(aResult);
if (NS_SUCCEEDED(rv)) {
(void)prefBranch->SetComplexValue(NS_PREF_DIR,
NS_GET_IID(nsIFile),
*aResult);
}
return rv;
}
break;
}
return NS_ERROR_INVALID_ARG;
}
NS_IMETHODIMP
nsDownloadManager::AddDownload(DownloadType aDownloadType,
nsIURI *aSource,
nsIURI *aTarget,
const nsAString& aDisplayName,
nsIMIMEInfo *aMIMEInfo,
PRTime aStartTime,
nsIFile *aTempFile,
nsICancelable *aCancelable,
nsIDownload **aDownload)
{
NS_ENSURE_ARG_POINTER(aSource);
NS_ENSURE_ARG_POINTER(aTarget);
NS_ENSURE_ARG_POINTER(aDownload);
nsresult rv;
// target must be on the local filesystem
nsCOMPtr<nsIFileURL> targetFileURL = do_QueryInterface(aTarget, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> targetFile;
rv = targetFileURL->GetFile(getter_AddRefs(targetFile));
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<nsDownload> dl = new nsDownload();
if (!dl)
return NS_ERROR_OUT_OF_MEMORY;
// give our new nsIDownload some info so it's ready to go off into the world
dl->mTarget = aTarget;
dl->mSource = aSource;
dl->mTempFile = aTempFile;
dl->mDisplayName = aDisplayName;
if (dl->mDisplayName.IsEmpty())
targetFile->GetLeafName(dl->mDisplayName);
dl->mMIMEInfo = aMIMEInfo;
dl->SetStartTime(aStartTime == 0 ? PR_Now() : aStartTime);
// Creates a cycle that will be broken when the download finishes
dl->mCancelable = aCancelable;
// Adding to the DB
nsCAutoString source, target;
aSource->GetSpec(source);
aTarget->GetSpec(target);
// Track the temp file for exthandler downloads
nsAutoString tempPath;
if (aTempFile)
aTempFile->GetPath(tempPath);
// Break down MIMEInfo but don't panic if we can't get all the pieces - we
// can still download the file
nsCAutoString persistentDescriptor, mimeType;
nsHandlerInfoAction action = nsIMIMEInfo::saveToDisk;
if (aMIMEInfo) {
(void)aMIMEInfo->GetType(mimeType);
nsCOMPtr<nsIHandlerApp> handlerApp;
(void)aMIMEInfo->GetPreferredApplicationHandler(getter_AddRefs(handlerApp));
nsCOMPtr<nsILocalHandlerApp> locHandlerApp = do_QueryInterface(handlerApp);
if (locHandlerApp) {
nsCOMPtr<nsIFile> executable;
(void)locHandlerApp->GetExecutable(getter_AddRefs(executable));
(void)executable->GetPersistentDescriptor(persistentDescriptor);
}
(void)aMIMEInfo->GetPreferredAction(&action);
}
DownloadState startState = nsIDownloadManager::DOWNLOAD_QUEUED;
PRInt64 id = AddDownloadToDB(dl->mDisplayName, source, target, tempPath,
dl->mStartTime, dl->mLastUpdate,
mimeType, persistentDescriptor, action);
NS_ENSURE_TRUE(id, NS_ERROR_FAILURE);
dl->mID = id;
rv = AddToCurrentDownloads(dl);
(void)dl->SetState(startState);
NS_ENSURE_SUCCESS(rv, rv);
#ifdef DOWNLOAD_SCANNER
if (mScanner) {
bool scan = true;
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (prefs) {
(void)prefs->GetBoolPref(PREF_BDM_SCANWHENDONE, &scan);
}
// We currently apply local security policy to downloads when we scan
// via windows all-in-one download security api. The CheckPolicy call
// below is a pre-emptive part of that process. So tie applying security
// zone policy settings when downloads are intiated to the same pref
// that triggers applying security zone policy settings after a download
// completes. (bug 504804)
if (scan) {
AVCheckPolicyState res = mScanner->CheckPolicy(aSource, aTarget);
if (res == AVPOLICY_BLOCKED) {
// This download will get deleted during a call to IAE's Save,
// so go ahead and mark it as blocked and avoid the download.
(void)CancelDownload(id);
startState = nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY;
}
}
}
#endif
// Check with parental controls to see if file downloads
// are allowed for this user. If not allowed, cancel the
// download and mark its state as being blocked.
nsCOMPtr<nsIParentalControlsService> pc =
do_CreateInstance(NS_PARENTALCONTROLSSERVICE_CONTRACTID);
if (pc) {
bool enabled = false;
(void)pc->GetBlockFileDownloadsEnabled(&enabled);
if (enabled) {
(void)CancelDownload(id);
(void)dl->SetState(nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL);
}
// Log the event if required by pc settings.
bool logEnabled = false;
(void)pc->GetLoggingEnabled(&logEnabled);
if (logEnabled) {
(void)pc->Log(nsIParentalControlsService::ePCLog_FileDownload,
enabled,
aSource,
nsnull);
}
}
NS_ADDREF(*aDownload = dl);
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::GetDownload(PRUint32 aID, nsIDownload **aDownloadItem)
{
nsDownload *itm = FindDownload(aID);
nsRefPtr<nsDownload> dl;
if (!itm) {
nsresult rv = GetDownloadFromDB(aID, getter_AddRefs(dl));
NS_ENSURE_SUCCESS(rv, rv);
itm = dl.get();
}
NS_ADDREF(*aDownloadItem = itm);
return NS_OK;
}
nsDownload *
nsDownloadManager::FindDownload(PRUint32 aID)
{
// we shouldn't ever have many downloads, so we can loop over them
for (PRInt32 i = mCurrentDownloads.Count() - 1; i >= 0; --i) {
nsDownload *dl = mCurrentDownloads[i];
if (dl->mID == aID)
return dl;
}
return nsnull;
}
NS_IMETHODIMP
nsDownloadManager::CancelDownload(PRUint32 aID)
{
// We AddRef here so we don't lose access to member variables when we remove
nsRefPtr<nsDownload> dl = FindDownload(aID);
// if it's null, someone passed us a bad id.
if (!dl)
return NS_ERROR_FAILURE;
// Don't cancel if download is already finished
if (dl->IsFinished())
return NS_OK;
// if the download is fake-paused, we have to resume it so we can cancel it
if (dl->IsPaused() && !dl->IsResumable())
(void)dl->Resume();
// Have the download cancel its connection
(void)dl->Cancel();
// Dump the temp file because we know we don't need the file anymore. The
// underlying transfer creating the file doesn't delete the file because it
// can't distinguish between a pause that cancels the transfer or a real
// cancel.
if (dl->mTempFile) {
bool exists;
dl->mTempFile->Exists(&exists);
if (exists)
dl->mTempFile->Remove(false);
}
nsCOMPtr<nsIFile> file;
if (NS_SUCCEEDED(dl->GetTargetFile(getter_AddRefs(file))))
{
bool exists;
file->Exists(&exists);
if (exists)
file->Remove(false);
}
nsresult rv = dl->SetState(nsIDownloadManager::DOWNLOAD_CANCELED);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::RetryDownload(PRUint32 aID)
{
nsRefPtr<nsDownload> dl;
nsresult rv = GetDownloadFromDB(aID, getter_AddRefs(dl));
NS_ENSURE_SUCCESS(rv, rv);
// if our download is not canceled or failed, we should fail
if (dl->mDownloadState != nsIDownloadManager::DOWNLOAD_FAILED &&
dl->mDownloadState != nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL &&
dl->mDownloadState != nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY &&
dl->mDownloadState != nsIDownloadManager::DOWNLOAD_DIRTY &&
dl->mDownloadState != nsIDownloadManager::DOWNLOAD_CANCELED)
return NS_ERROR_FAILURE;
// If the download has failed and is resumable then we first try resuming it
if (dl->mDownloadState == nsIDownloadManager::DOWNLOAD_FAILED && dl->IsResumable()) {
rv = dl->Resume();
if (NS_SUCCEEDED(rv))
return rv;
}
// reset time and download progress
dl->SetStartTime(PR_Now());
dl->SetProgressBytes(0, -1);
nsCOMPtr<nsIWebBrowserPersist> wbp =
do_CreateInstance("@mozilla.org/embedding/browser/nsWebBrowserPersist;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = wbp->SetPersistFlags(nsIWebBrowserPersist::PERSIST_FLAGS_REPLACE_EXISTING_FILES |
nsIWebBrowserPersist::PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION);
NS_ENSURE_SUCCESS(rv, rv);
rv = AddToCurrentDownloads(dl);
NS_ENSURE_SUCCESS(rv, rv);
rv = dl->SetState(nsIDownloadManager::DOWNLOAD_QUEUED);
NS_ENSURE_SUCCESS(rv, rv);
// Creates a cycle that will be broken when the download finishes
dl->mCancelable = wbp;
(void)wbp->SetProgressListener(dl);
rv = wbp->SaveURI(dl->mSource, nsnull, nsnull, nsnull, nsnull, dl->mTarget);
if (NS_FAILED(rv)) {
dl->mCancelable = nsnull;
(void)wbp->SetProgressListener(nsnull);
return rv;
}
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::RemoveDownload(PRUint32 aID)
{
nsDownload *dl = FindDownload(aID);
NS_ASSERTION(!dl, "Can't call RemoveDownload on a download in progress!");
if (dl)
return NS_ERROR_FAILURE;
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_downloads "
"WHERE id = :id"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), aID); // unsigned; 64-bit to prevent overflow
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsPRUint32> id =
do_CreateInstance(NS_SUPPORTS_PRUINT32_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = id->SetData(aID);
NS_ENSURE_SUCCESS(rv, rv);
// Notify the UI with the topic and download id
return mObserverService->NotifyObservers(id,
"download-manager-remove-download",
nsnull);
}
NS_IMETHODIMP
nsDownloadManager::RemoveDownloadsByTimeframe(PRInt64 aStartTime,
PRInt64 aEndTime)
{
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_downloads "
"WHERE startTime >= :startTime "
"AND startTime <= :endTime "
"AND state NOT IN (:downloading, :paused, :queued)"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
// Bind the times
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("startTime"), aStartTime);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("endTime"), aEndTime);
NS_ENSURE_SUCCESS(rv, rv);
// Bind the active states
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("downloading"), nsIDownloadManager::DOWNLOAD_DOWNLOADING);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("paused"), nsIDownloadManager::DOWNLOAD_PAUSED);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("queued"), nsIDownloadManager::DOWNLOAD_QUEUED);
NS_ENSURE_SUCCESS(rv, rv);
// Execute
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
// Notify the UI with the topic and null subject to indicate "remove multiple"
return mObserverService->NotifyObservers(nsnull,
"download-manager-remove-download",
nsnull);
}
NS_IMETHODIMP
nsDownloadManager::CleanUp()
{
DownloadState states[] = { nsIDownloadManager::DOWNLOAD_FINISHED,
nsIDownloadManager::DOWNLOAD_FAILED,
nsIDownloadManager::DOWNLOAD_CANCELED,
nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL,
nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY,
nsIDownloadManager::DOWNLOAD_DIRTY };
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_downloads "
"WHERE state = ? "
"OR state = ? "
"OR state = ? "
"OR state = ? "
"OR state = ? "
"OR state = ?"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
for (PRUint32 i = 0; i < ArrayLength(states); ++i) {
rv = stmt->BindInt32ByIndex(i, states[i]);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
// Notify the UI with the topic and null subject to indicate "remove multiple"
return mObserverService->NotifyObservers(nsnull,
"download-manager-remove-download",
nsnull);
}
NS_IMETHODIMP
nsDownloadManager::GetCanCleanUp(bool *aResult)
{
// This method should never return anything but NS_OK for the benefit of
// unwitting consumers.
*aResult = false;
DownloadState states[] = { nsIDownloadManager::DOWNLOAD_FINISHED,
nsIDownloadManager::DOWNLOAD_FAILED,
nsIDownloadManager::DOWNLOAD_CANCELED,
nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL,
nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY,
nsIDownloadManager::DOWNLOAD_DIRTY };
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mDBConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT COUNT(*) "
"FROM moz_downloads "
"WHERE state = ? "
"OR state = ? "
"OR state = ? "
"OR state = ? "
"OR state = ? "
"OR state = ?"), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, NS_OK);
for (PRUint32 i = 0; i < ArrayLength(states); ++i) {
rv = stmt->BindInt32ByIndex(i, states[i]);
NS_ENSURE_SUCCESS(rv, NS_OK);
}
bool moreResults; // We don't really care...
rv = stmt->ExecuteStep(&moreResults);
NS_ENSURE_SUCCESS(rv, NS_OK);
PRInt32 count;
rv = stmt->GetInt32(0, &count);
NS_ENSURE_SUCCESS(rv, NS_OK);
if (count > 0)
*aResult = true;
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::PauseDownload(PRUint32 aID)
{
nsDownload *dl = FindDownload(aID);
if (!dl)
return NS_ERROR_FAILURE;
return dl->Pause();
}
NS_IMETHODIMP
nsDownloadManager::ResumeDownload(PRUint32 aID)
{
nsDownload *dl = FindDownload(aID);
if (!dl)
return NS_ERROR_FAILURE;
return dl->Resume();
}
NS_IMETHODIMP
nsDownloadManager::GetDBConnection(mozIStorageConnection **aDBConn)
{
NS_ADDREF(*aDBConn = mDBConn);
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::AddListener(nsIDownloadProgressListener *aListener)
{
mListeners.AppendObject(aListener);
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::RemoveListener(nsIDownloadProgressListener *aListener)
{
mListeners.RemoveObject(aListener);
return NS_OK;
}
void
nsDownloadManager::NotifyListenersOnDownloadStateChange(PRInt16 aOldState,
nsIDownload *aDownload)
{
for (PRInt32 i = mListeners.Count() - 1; i >= 0; --i)
mListeners[i]->OnDownloadStateChange(aOldState, aDownload);
}
void
nsDownloadManager::NotifyListenersOnProgressChange(nsIWebProgress *aProgress,
nsIRequest *aRequest,
PRInt64 aCurSelfProgress,
PRInt64 aMaxSelfProgress,
PRInt64 aCurTotalProgress,
PRInt64 aMaxTotalProgress,
nsIDownload *aDownload)
{
for (PRInt32 i = mListeners.Count() - 1; i >= 0; --i)
mListeners[i]->OnProgressChange(aProgress, aRequest, aCurSelfProgress,
aMaxSelfProgress, aCurTotalProgress,
aMaxTotalProgress, aDownload);
}
void
nsDownloadManager::NotifyListenersOnStateChange(nsIWebProgress *aProgress,
nsIRequest *aRequest,
PRUint32 aStateFlags,
nsresult aStatus,
nsIDownload *aDownload)
{
for (PRInt32 i = mListeners.Count() - 1; i >= 0; --i)
mListeners[i]->OnStateChange(aProgress, aRequest, aStateFlags, aStatus,
aDownload);
}
nsresult
nsDownloadManager::SwitchDatabaseTypeTo(enum nsDownloadManager::DatabaseType aType)
{
if (aType == mDBType)
return NS_OK; // no-op
mDBType = aType;
(void)PauseAllDownloads(true);
(void)RemoveAllDownloads();
nsresult rv = InitDB();
NS_ENSURE_SUCCESS(rv, rv);
// Do things *after* initializing various download manager properties such as
// restoring downloads to a consistent state
rv = RestoreDatabaseState();
NS_ENSURE_SUCCESS(rv, rv);
// Notify that the database type changed before resuming current downloads
(void)mObserverService->NotifyObservers(
static_cast<nsIDownloadManager *>(this),
"download-manager-database-type-changed",
nsnull);
rv = RestoreActiveDownloads();
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "Failed to restore all active downloads");
return rv;
}
////////////////////////////////////////////////////////////////////////////////
//// nsINavHistoryObserver
NS_IMETHODIMP
nsDownloadManager::OnBeginUpdateBatch()
{
// We already have a transaction, so don't make another
if (mHistoryTransaction)
return NS_OK;
// Start a transaction that commits when deleted
mHistoryTransaction = new mozStorageTransaction(mDBConn, true);
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::OnEndUpdateBatch()
{
// Get rid of the transaction and cause it to commit
mHistoryTransaction = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::OnVisit(nsIURI *aURI, PRInt64 aVisitID, PRTime aTime,
PRInt64 aSessionID, PRInt64 aReferringID,
PRUint32 aTransitionType, const nsACString& aGUID,
PRUint32 *aAdded)
{
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::OnTitleChanged(nsIURI *aURI,
const nsAString &aPageTitle,
const nsACString &aGUID)
{
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::OnBeforeDeleteURI(nsIURI *aURI,
const nsACString& aGUID,
PRUint16 aReason)
{
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::OnDeleteURI(nsIURI *aURI,
const nsACString& aGUID,
PRUint16 aReason)
{
return RemoveDownloadsForURI(aURI);
}
NS_IMETHODIMP
nsDownloadManager::OnClearHistory()
{
return CleanUp();
}
NS_IMETHODIMP
nsDownloadManager::OnPageChanged(nsIURI *aURI,
PRUint32 aChangedAttribute,
const nsAString& aNewValue,
const nsACString &aGUID)
{
return NS_OK;
}
NS_IMETHODIMP
nsDownloadManager::OnDeleteVisits(nsIURI *aURI, PRTime aVisitTime,
const nsACString& aGUID,
PRUint16 aReason)
{
// Don't bother removing downloads until the page is removed.
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
//// nsIObserver
NS_IMETHODIMP
nsDownloadManager::Observe(nsISupports *aSubject,
const char *aTopic,
const PRUnichar *aData)
{
PRInt32 currDownloadCount = mCurrentDownloads.Count();
// If we don't need to cancel all the downloads on quit, only count the ones
// that aren't resumable.
if (GetQuitBehavior() != QUIT_AND_CANCEL)
for (PRInt32 i = currDownloadCount - 1; i >= 0; --i)
if (mCurrentDownloads[i]->IsResumable())
currDownloadCount--;
nsresult rv;
if (strcmp(aTopic, "oncancel") == 0) {
nsCOMPtr<nsIDownload> dl = do_QueryInterface(aSubject, &rv);
NS_ENSURE_SUCCESS(rv, rv);
PRUint32 id;
dl->GetId(&id);
nsDownload *dl2 = FindDownload(id);
if (dl2)
return CancelDownload(id);
} else if (strcmp(aTopic, "profile-before-change") == 0) {
CloseDB();
} else if (strcmp(aTopic, "quit-application") == 0) {
// Try to pause all downloads and, if appropriate, mark them as auto-resume
// unless user has specified that downloads should be canceled
enum QuitBehavior behavior = GetQuitBehavior();
if (behavior != QUIT_AND_CANCEL)
(void)PauseAllDownloads(bool(behavior != QUIT_AND_PAUSE));
// Remove downloads to break cycles and cancel downloads
(void)RemoveAllDownloads();
// Now that active downloads have been canceled, remove all completed or
// aborted downloads if the user's retention policy specifies it.
if (GetRetentionBehavior() == 1)
CleanUp();
} else if (strcmp(aTopic, "quit-application-requested") == 0 &&
currDownloadCount) {
nsCOMPtr<nsISupportsPRBool> cancelDownloads =
do_QueryInterface(aSubject, &rv);
NS_ENSURE_SUCCESS(rv, rv);
#ifndef XP_MACOSX
ConfirmCancelDownloads(currDownloadCount, cancelDownloads,
NS_LITERAL_STRING("quitCancelDownloadsAlertTitle").get(),
NS_LITERAL_STRING("quitCancelDownloadsAlertMsgMultiple").get(),
NS_LITERAL_STRING("quitCancelDownloadsAlertMsg").get(),
NS_LITERAL_STRING("dontQuitButtonWin").get());
#else
ConfirmCancelDownloads(currDownloadCount, cancelDownloads,
NS_LITERAL_STRING("quitCancelDownloadsAlertTitle").get(),
NS_LITERAL_STRING("quitCancelDownloadsAlertMsgMacMultiple").get(),
NS_LITERAL_STRING("quitCancelDownloadsAlertMsgMac").get(),
NS_LITERAL_STRING("dontQuitButtonMac").get());
#endif
} else if (strcmp(aTopic, "offline-requested") == 0 && currDownloadCount) {
nsCOMPtr<nsISupportsPRBool> cancelDownloads =
do_QueryInterface(aSubject, &rv);
NS_ENSURE_SUCCESS(rv, rv);
ConfirmCancelDownloads(currDownloadCount, cancelDownloads,
NS_LITERAL_STRING("offlineCancelDownloadsAlertTitle").get(),
NS_LITERAL_STRING("offlineCancelDownloadsAlertMsgMultiple").get(),
NS_LITERAL_STRING("offlineCancelDownloadsAlertMsg").get(),
NS_LITERAL_STRING("dontGoOfflineButton").get());
}
else if (strcmp(aTopic, NS_IOSERVICE_GOING_OFFLINE_TOPIC) == 0) {
// Pause all downloads, and mark them to auto-resume.
(void)PauseAllDownloads(true);
}
else if (strcmp(aTopic, NS_IOSERVICE_OFFLINE_STATUS_TOPIC) == 0 &&
nsDependentString(aData).EqualsLiteral(NS_IOSERVICE_ONLINE)) {
// We can now resume all downloads that are supposed to auto-resume.
(void)ResumeAllDownloads(false);
}
else if (strcmp(aTopic, "dlmgr-switchdb") == 0) {
if (NS_LITERAL_STRING("memory").Equals(aData))
return SwitchDatabaseTypeTo(DATABASE_MEMORY);
else if (NS_LITERAL_STRING("disk").Equals(aData))
return SwitchDatabaseTypeTo(DATABASE_DISK);
}
else if (strcmp(aTopic, "alertclickcallback") == 0) {
nsCOMPtr<nsIDownloadManagerUI> dmui =
do_GetService("@mozilla.org/download-manager-ui;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
return dmui->Show(nsnull, 0, nsIDownloadManagerUI::REASON_USER_INTERACTED);
} else if (strcmp(aTopic, "sleep_notification") == 0) {
// Pause downloads if we're sleeping, and mark the downloads as auto-resume
(void)PauseAllDownloads(true);
} else if (strcmp(aTopic, "wake_notification") == 0) {
PRInt32 resumeOnWakeDelay = 10000;
nsCOMPtr<nsIPrefBranch> pref = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (pref)
(void)pref->GetIntPref(PREF_BDM_RESUMEONWAKEDELAY, &resumeOnWakeDelay);
// Wait a little bit before trying to resume to avoid resuming when network
// connections haven't restarted yet
mResumeOnWakeTimer = do_CreateInstance("@mozilla.org/timer;1");
if (resumeOnWakeDelay >= 0 && mResumeOnWakeTimer) {
(void)mResumeOnWakeTimer->InitWithFuncCallback(ResumeOnWakeCallback,
this, resumeOnWakeDelay, nsITimer::TYPE_ONE_SHOT);
}
}
else if (strcmp(aTopic, NS_PRIVATE_BROWSING_REQUEST_TOPIC) == 0) {
if (NS_LITERAL_STRING(NS_PRIVATE_BROWSING_ENTER).Equals(aData) &&
currDownloadCount) {
nsCOMPtr<nsISupportsPRBool> cancelDownloads =
do_QueryInterface(aSubject, &rv);
NS_ENSURE_SUCCESS(rv, rv);
ConfirmCancelDownloads(currDownloadCount, cancelDownloads,
NS_LITERAL_STRING("enterPrivateBrowsingCancelDownloadsAlertTitle").get(),
NS_LITERAL_STRING("enterPrivateBrowsingCancelDownloadsAlertMsgMultiple").get(),
NS_LITERAL_STRING("enterPrivateBrowsingCancelDownloadsAlertMsg").get(),
NS_LITERAL_STRING("dontEnterPrivateBrowsingButton").get());
}
else if (NS_LITERAL_STRING(NS_PRIVATE_BROWSING_LEAVE).Equals(aData) &&
mCurrentDownloads.Count()) {
nsCOMPtr<nsISupportsPRBool> cancelDownloads =
do_QueryInterface(aSubject, &rv);
NS_ENSURE_SUCCESS(rv, rv);
ConfirmCancelDownloads(mCurrentDownloads.Count(), cancelDownloads,
NS_LITERAL_STRING("leavePrivateBrowsingCancelDownloadsAlertTitle").get(),
NS_LITERAL_STRING("leavePrivateBrowsingCancelDownloadsAlertMsgMultiple").get(),
NS_LITERAL_STRING("leavePrivateBrowsingCancelDownloadsAlertMsg").get(),
NS_LITERAL_STRING("dontLeavePrivateBrowsingButton").get());
}
}
else if (strcmp(aTopic, NS_PRIVATE_BROWSING_SWITCH_TOPIC) == 0) {
if (NS_LITERAL_STRING(NS_PRIVATE_BROWSING_ENTER).Equals(aData))
OnEnterPrivateBrowsingMode();
else if (NS_LITERAL_STRING(NS_PRIVATE_BROWSING_LEAVE).Equals(aData))
OnLeavePrivateBrowsingMode();
}
return NS_OK;
}
void
nsDownloadManager::OnEnterPrivateBrowsingMode()
{
// Pause all downloads, and mark them to auto-resume.
(void)PauseAllDownloads(true);
// Switch to using an in-memory DB
(void)SwitchDatabaseTypeTo(DATABASE_MEMORY);
mInPrivateBrowsing = true;
}
void
nsDownloadManager::OnLeavePrivateBrowsingMode()
{
// We can now resume all downloads that are supposed to auto-resume.
(void)ResumeAllDownloads(false);
// Switch back to the on-disk DB again
(void)SwitchDatabaseTypeTo(DATABASE_DISK);
mInPrivateBrowsing = false;
}
void
nsDownloadManager::ConfirmCancelDownloads(PRInt32 aCount,
nsISupportsPRBool *aCancelDownloads,
const PRUnichar *aTitle,
const PRUnichar *aCancelMessageMultiple,
const PRUnichar *aCancelMessageSingle,
const PRUnichar *aDontCancelButton)
{
// If user has already dismissed quit request, then do nothing
bool quitRequestCancelled = false;
aCancelDownloads->GetData(&quitRequestCancelled);
if (quitRequestCancelled)
return;
nsXPIDLString title, message, quitButton, dontQuitButton;
mBundle->GetStringFromName(aTitle, getter_Copies(title));
nsAutoString countString;
countString.AppendInt(aCount);
const PRUnichar *strings[1] = { countString.get() };
if (aCount > 1) {
mBundle->FormatStringFromName(aCancelMessageMultiple, strings, 1,
getter_Copies(message));
mBundle->FormatStringFromName(NS_LITERAL_STRING("cancelDownloadsOKTextMultiple").get(),
strings, 1, getter_Copies(quitButton));
} else {
mBundle->GetStringFromName(aCancelMessageSingle, getter_Copies(message));
mBundle->GetStringFromName(NS_LITERAL_STRING("cancelDownloadsOKText").get(),
getter_Copies(quitButton));
}
mBundle->GetStringFromName(aDontCancelButton, getter_Copies(dontQuitButton));
// Get Download Manager window, to be parent of alert.
nsCOMPtr<nsIWindowMediator> wm = do_GetService(NS_WINDOWMEDIATOR_CONTRACTID);
nsCOMPtr<nsIDOMWindow> dmWindow;
if (wm) {
wm->GetMostRecentWindow(NS_LITERAL_STRING("Download:Manager").get(),
getter_AddRefs(dmWindow));
}
// Show alert.
nsCOMPtr<nsIPromptService> prompter(do_GetService(NS_PROMPTSERVICE_CONTRACTID));
if (prompter) {
PRInt32 flags = (nsIPromptService::BUTTON_TITLE_IS_STRING * nsIPromptService::BUTTON_POS_0) + (nsIPromptService::BUTTON_TITLE_IS_STRING * nsIPromptService::BUTTON_POS_1);
bool nothing = false;
PRInt32 button;
prompter->ConfirmEx(dmWindow, title, message, flags, quitButton.get(), dontQuitButton.get(), nsnull, nsnull, &nothing, &button);
aCancelDownloads->SetData(button == 1);
}
}
////////////////////////////////////////////////////////////////////////////////
//// nsDownload
NS_IMPL_CLASSINFO(nsDownload, NULL, 0, NS_DOWNLOAD_CID)
NS_IMPL_ISUPPORTS4_CI(
nsDownload
, nsIDownload
, nsITransfer
, nsIWebProgressListener
, nsIWebProgressListener2
)
nsDownload::nsDownload() : mDownloadState(nsIDownloadManager::DOWNLOAD_NOTSTARTED),
mID(0),
mPercentComplete(0),
mCurrBytes(0),
mMaxBytes(-1),
mStartTime(0),
mLastUpdate(PR_Now() - (PRUint32)gUpdateInterval),
mResumedAt(-1),
mSpeed(0),
mHasMultipleFiles(false),
mAutoResume(DONT_RESUME)
{
}
nsDownload::~nsDownload()
{
}
nsresult
nsDownload::SetState(DownloadState aState)
{
NS_ASSERTION(mDownloadState != aState,
"Trying to set the download state to what it already is set to!");
PRInt16 oldState = mDownloadState;
mDownloadState = aState;
// We don't want to lose access to our member variables
nsRefPtr<nsDownload> kungFuDeathGrip = this;
// When the state changed listener is dispatched, queries to the database and
// the download manager api should reflect what the nsIDownload object would
// return. So, if a download is done (finished, canceled, etc.), it should
// first be removed from the current downloads. We will also have to update
// the database *before* notifying listeners. At this point, you can safely
// dispatch to the observers as well.
switch (aState) {
case nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL:
case nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY:
case nsIDownloadManager::DOWNLOAD_DIRTY:
case nsIDownloadManager::DOWNLOAD_CANCELED:
case nsIDownloadManager::DOWNLOAD_FAILED:
#ifdef ANDROID
// If we still have a temp file, remove it
bool tempExists;
if (mTempFile && NS_SUCCEEDED(mTempFile->Exists(&tempExists)) && tempExists) {
nsresult rv = mTempFile->Remove(false);
NS_ENSURE_SUCCESS(rv, rv);
}
#endif
// Transfers are finished, so break the reference cycle
Finalize();
break;
#ifdef DOWNLOAD_SCANNER
case nsIDownloadManager::DOWNLOAD_SCANNING:
{
nsresult rv = mDownloadManager->mScanner ? mDownloadManager->mScanner->ScanDownload(this) : NS_ERROR_NOT_INITIALIZED;
// If we failed, then fall through to 'download finished'
if (NS_SUCCEEDED(rv))
break;
mDownloadState = aState = nsIDownloadManager::DOWNLOAD_FINISHED;
}
#endif
case nsIDownloadManager::DOWNLOAD_FINISHED:
{
// Do what exthandler would have done if necessary
nsresult rv = ExecuteDesiredAction();
if (NS_FAILED(rv)) {
// We've failed to execute the desired action. As a result, we should
// fail the download so the user can try again.
(void)FailDownload(rv, nsnull);
return rv;
}
// Now that we're done with handling the download, clean it up
Finalize();
nsCOMPtr<nsIPrefBranch> pref(do_GetService(NS_PREFSERVICE_CONTRACTID));
// Master pref to control this function.
bool showTaskbarAlert = true;
if (pref)
pref->GetBoolPref(PREF_BDM_SHOWALERTONCOMPLETE, &showTaskbarAlert);
if (showTaskbarAlert) {
PRInt32 alertInterval = 2000;
if (pref)
pref->GetIntPref(PREF_BDM_SHOWALERTINTERVAL, &alertInterval);
PRInt64 alertIntervalUSec = alertInterval * PR_USEC_PER_MSEC;
PRInt64 goat = PR_Now() - mStartTime;
showTaskbarAlert = goat > alertIntervalUSec;
PRInt32 size = mDownloadManager->mCurrentDownloads.Count();
if (showTaskbarAlert && size == 0) {
nsCOMPtr<nsIAlertsService> alerts =
do_GetService("@mozilla.org/alerts-service;1");
if (alerts) {
nsXPIDLString title, message;
mDownloadManager->mBundle->GetStringFromName(
NS_LITERAL_STRING("downloadsCompleteTitle").get(),
getter_Copies(title));
mDownloadManager->mBundle->GetStringFromName(
NS_LITERAL_STRING("downloadsCompleteMsg").get(),
getter_Copies(message));
bool removeWhenDone =
mDownloadManager->GetRetentionBehavior() == 0;
// If downloads are automatically removed per the user's
// retention policy, there's no reason to make the text clickable
// because if it is, they'll click open the download manager and
// the items they downloaded will have been removed.
alerts->ShowAlertNotification(
NS_LITERAL_STRING(DOWNLOAD_MANAGER_ALERT_ICON), title,
message, !removeWhenDone, EmptyString(), mDownloadManager,
EmptyString());
}
}
}
#if defined(XP_WIN) || defined(XP_MACOSX) || defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK2)
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mTarget);
nsCOMPtr<nsIFile> file;
nsAutoString path;
if (fileURL &&
NS_SUCCEEDED(fileURL->GetFile(getter_AddRefs(file))) &&
file &&
NS_SUCCEEDED(file->GetPath(path))) {
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK2)
// On Windows and Gtk, add the download to the system's "recent documents"
// list, with a pref to disable.
{
bool addToRecentDocs = true;
if (pref)
pref->GetBoolPref(PREF_BDM_ADDTORECENTDOCS, &addToRecentDocs);
if (addToRecentDocs &&
!nsDownloadManager::gDownloadManagerService->mInPrivateBrowsing) {
#ifdef XP_WIN
::SHAddToRecentDocs(SHARD_PATHW, path.get());
#elif defined(MOZ_WIDGET_GTK2)
GtkRecentManager* manager = gtk_recent_manager_get_default();
gchar* uri = g_filename_to_uri(NS_ConvertUTF16toUTF8(path).get(),
NULL, NULL);
if (uri) {
gtk_recent_manager_add_item(manager, uri);
g_free(uri);
}
#endif
}
}
#endif
#ifdef XP_MACOSX
// On OS X, make the downloads stack bounce.
CFStringRef observedObject = ::CFStringCreateWithCString(kCFAllocatorDefault,
NS_ConvertUTF16toUTF8(path).get(),
kCFStringEncodingUTF8);
CFNotificationCenterRef center = ::CFNotificationCenterGetDistributedCenter();
::CFNotificationCenterPostNotification(center, CFSTR("com.apple.DownloadFileFinished"),
observedObject, NULL, TRUE);
::CFRelease(observedObject);
#endif
#ifdef MOZ_WIDGET_ANDROID
nsCOMPtr<nsIMIMEInfo> mimeInfo;
nsCAutoString contentType;
GetMIMEInfo(getter_AddRefs(mimeInfo));
if (mimeInfo)
mimeInfo->GetMIMEType(contentType);
mozilla::AndroidBridge::Bridge()->ScanMedia(path, contentType);
#endif
}
#ifdef XP_WIN
// Adjust file attributes so that by default, new files are indexed
// by desktop search services. Skip off those that land in the temp
// folder.
nsCOMPtr<nsIFile> tempDir, fileDir;
rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(tempDir));
NS_ENSURE_SUCCESS(rv, rv);
(void)file->GetParent(getter_AddRefs(fileDir));
bool isTemp = false;
if (fileDir)
(void)fileDir->Equals(tempDir, &isTemp);
nsCOMPtr<nsILocalFileWin> localFileWin(do_QueryInterface(file));
if (!isTemp && localFileWin)
(void)localFileWin->SetFileAttributesWin(nsILocalFileWin::WFA_SEARCH_INDEXED);
#endif
#endif
// Now remove the download if the user's retention policy is "Remove when Done"
if (mDownloadManager->GetRetentionBehavior() == 0)
mDownloadManager->RemoveDownload(mID);
}
break;
default:
break;
}
// Before notifying the listener, we must update the database so that calls
// to it work out properly.
nsresult rv = UpdateDB();
NS_ENSURE_SUCCESS(rv, rv);
mDownloadManager->NotifyListenersOnDownloadStateChange(oldState, this);
switch (mDownloadState) {
case nsIDownloadManager::DOWNLOAD_DOWNLOADING:
// Only send the dl-start event to downloads that are actually starting.
if (oldState == nsIDownloadManager::DOWNLOAD_QUEUED)
mDownloadManager->SendEvent(this, "dl-start");
break;
case nsIDownloadManager::DOWNLOAD_FAILED:
mDownloadManager->SendEvent(this, "dl-failed");
break;
case nsIDownloadManager::DOWNLOAD_SCANNING:
mDownloadManager->SendEvent(this, "dl-scanning");
break;
case nsIDownloadManager::DOWNLOAD_FINISHED:
mDownloadManager->SendEvent(this, "dl-done");
break;
case nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL:
case nsIDownloadManager::DOWNLOAD_BLOCKED_POLICY:
mDownloadManager->SendEvent(this, "dl-blocked");
break;
case nsIDownloadManager::DOWNLOAD_DIRTY:
mDownloadManager->SendEvent(this, "dl-dirty");
break;
case nsIDownloadManager::DOWNLOAD_CANCELED:
mDownloadManager->SendEvent(this, "dl-cancel");
break;
default:
break;
}
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
//// nsIWebProgressListener2
NS_IMETHODIMP
nsDownload::OnProgressChange64(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
PRInt64 aCurSelfProgress,
PRInt64 aMaxSelfProgress,
PRInt64 aCurTotalProgress,
PRInt64 aMaxTotalProgress)
{
if (!mRequest)
mRequest = aRequest; // used for pause/resume
if (mDownloadState == nsIDownloadManager::DOWNLOAD_QUEUED) {
// Obtain the referrer
nsresult rv;
nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest));
nsCOMPtr<nsIURI> referrer = mReferrer;
if (channel)
(void)NS_GetReferrerFromChannel(channel, getter_AddRefs(mReferrer));
// Restore the original referrer if the new one isn't useful
if (!mReferrer)
mReferrer = referrer;
// If we have a MIME info, we know that exthandler has already added this to
// the history, but if we do not, we'll have to add it ourselves.
if (!mMIMEInfo) {
nsCOMPtr<nsIDownloadHistory> dh =
do_GetService(NS_DOWNLOADHISTORY_CONTRACTID);
if (dh)
(void)dh->AddDownload(mSource, mReferrer, mStartTime, mTarget);
}
// Fetch the entityID, but if we can't get it, don't panic (non-resumable)
nsCOMPtr<nsIResumableChannel> resumableChannel(do_QueryInterface(aRequest));
if (resumableChannel)
(void)resumableChannel->GetEntityID(mEntityID);
// Before we update the state and dispatch state notifications, we want to
// ensure that we have the correct state for this download with regards to
// its percent completion and size.
SetProgressBytes(0, aMaxTotalProgress);
// Update the state and the database
rv = SetState(nsIDownloadManager::DOWNLOAD_DOWNLOADING);
NS_ENSURE_SUCCESS(rv, rv);
}
// filter notifications since they come in so frequently
PRTime now = PR_Now();
PRIntervalTime delta = now - mLastUpdate;
if (delta < gUpdateInterval)
return NS_OK;
mLastUpdate = now;
// Calculate the speed using the elapsed delta time and bytes downloaded
// during that time for more accuracy.
double elapsedSecs = double(delta) / PR_USEC_PER_SEC;
if (elapsedSecs > 0) {
double speed = double(aCurTotalProgress - mCurrBytes) / elapsedSecs;
if (mCurrBytes == 0) {
mSpeed = speed;
} else {
// Calculate 'smoothed average' of 10 readings.
mSpeed = mSpeed * 0.9 + speed * 0.1;
}
}
SetProgressBytes(aCurTotalProgress, aMaxTotalProgress);
// Report to the listener our real sizes
PRInt64 currBytes, maxBytes;
(void)GetAmountTransferred(&currBytes);
(void)GetSize(&maxBytes);
mDownloadManager->NotifyListenersOnProgressChange(
aWebProgress, aRequest, currBytes, maxBytes, currBytes, maxBytes, this);
// If the maximums are different, then there must be more than one file
if (aMaxSelfProgress != aMaxTotalProgress)
mHasMultipleFiles = true;
return NS_OK;
}
NS_IMETHODIMP
nsDownload::OnRefreshAttempted(nsIWebProgress *aWebProgress,
nsIURI *aUri,
PRInt32 aDelay,
bool aSameUri,
bool *allowRefresh)
{
*allowRefresh = true;
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
//// nsIWebProgressListener
NS_IMETHODIMP
nsDownload::OnProgressChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
PRInt32 aCurSelfProgress,
PRInt32 aMaxSelfProgress,
PRInt32 aCurTotalProgress,
PRInt32 aMaxTotalProgress)
{
return OnProgressChange64(aWebProgress, aRequest,
aCurSelfProgress, aMaxSelfProgress,
aCurTotalProgress, aMaxTotalProgress);
}
NS_IMETHODIMP
nsDownload::OnLocationChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, nsIURI *aLocation,
PRUint32 aFlags)
{
return NS_OK;
}
NS_IMETHODIMP
nsDownload::OnStatusChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, nsresult aStatus,
const PRUnichar *aMessage)
{
if (NS_FAILED(aStatus))
return FailDownload(aStatus, aMessage);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::OnStateChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, PRUint32 aStateFlags,
nsresult aStatus)
{
// We don't want to lose access to our member variables
nsRefPtr<nsDownload> kungFuDeathGrip = this;
// Check if we're starting a request; the NETWORK flag is necessary to not
// pick up the START of *each* file but only for the whole request
if ((aStateFlags & STATE_START) && (aStateFlags & STATE_IS_NETWORK)) {
nsresult rv;
nsCOMPtr<nsIHttpChannel> channel = do_QueryInterface(aRequest, &rv);
if (NS_SUCCEEDED(rv)) {
PRUint32 status;
rv = channel->GetResponseStatus(&status);
// HTTP 450 - Blocked by parental control proxies
if (NS_SUCCEEDED(rv) && status == 450) {
// Cancel using the provided object
(void)Cancel();
// Fail the download
(void)SetState(nsIDownloadManager::DOWNLOAD_BLOCKED_PARENTAL);
}
}
} else if ((aStateFlags & STATE_STOP) && (aStateFlags & STATE_IS_NETWORK) &&
IsFinishable()) {
// We got both STOP and NETWORK so that means the whole request is done
// (and not just a single file if there are multiple files)
if (NS_SUCCEEDED(aStatus)) {
// We can't completely trust the bytes we've added up because we might be
// missing on some/all of the progress updates (especially from cache).
// Our best bet is the file itself, but if for some reason it's gone or
// if we have multiple files, the next best is what we've calculated.
PRInt64 fileSize;
nsCOMPtr<nsIFile> file;
// We need a nsIFile clone to deal with file size caching issues. :(
nsCOMPtr<nsIFile> clone;
if (!mHasMultipleFiles &&
NS_SUCCEEDED(GetTargetFile(getter_AddRefs(file))) &&
NS_SUCCEEDED(file->Clone(getter_AddRefs(clone))) &&
NS_SUCCEEDED(clone->GetFileSize(&fileSize)) && fileSize > 0) {
mCurrBytes = mMaxBytes = fileSize;
// If we resumed, keep the fact that we did and fix size calculations
if (WasResumed())
mResumedAt = 0;
} else if (mMaxBytes == -1) {
mMaxBytes = mCurrBytes;
} else {
mCurrBytes = mMaxBytes;
}
mPercentComplete = 100;
mLastUpdate = PR_Now();
#ifdef DOWNLOAD_SCANNER
bool scan = true;
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (prefs)
(void)prefs->GetBoolPref(PREF_BDM_SCANWHENDONE, &scan);
if (scan)
(void)SetState(nsIDownloadManager::DOWNLOAD_SCANNING);
else
(void)SetState(nsIDownloadManager::DOWNLOAD_FINISHED);
#else
(void)SetState(nsIDownloadManager::DOWNLOAD_FINISHED);
#endif
} else {
// We failed for some unknown reason -- fail with a generic message
(void)FailDownload(aStatus, nsnull);
}
}
mDownloadManager->NotifyListenersOnStateChange(aWebProgress, aRequest,
aStateFlags, aStatus, this);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::OnSecurityChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, PRUint32 aState)
{
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
//// nsIDownload
NS_IMETHODIMP
nsDownload::Init(nsIURI *aSource,
nsIURI *aTarget,
const nsAString& aDisplayName,
nsIMIMEInfo *aMIMEInfo,
PRTime aStartTime,
nsIFile *aTempFile,
nsICancelable *aCancelable)
{
NS_WARNING("Huh...how did we get here?!");
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetState(PRInt16 *aState)
{
*aState = mDownloadState;
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetDisplayName(nsAString &aDisplayName)
{
aDisplayName = mDisplayName;
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetCancelable(nsICancelable **aCancelable)
{
*aCancelable = mCancelable;
NS_IF_ADDREF(*aCancelable);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetTarget(nsIURI **aTarget)
{
*aTarget = mTarget;
NS_IF_ADDREF(*aTarget);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetSource(nsIURI **aSource)
{
*aSource = mSource;
NS_IF_ADDREF(*aSource);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetStartTime(PRInt64 *aStartTime)
{
*aStartTime = mStartTime;
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetPercentComplete(PRInt32 *aPercentComplete)
{
*aPercentComplete = mPercentComplete;
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetAmountTransferred(PRInt64 *aAmountTransferred)
{
*aAmountTransferred = mCurrBytes + (WasResumed() ? mResumedAt : 0);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetSize(PRInt64 *aSize)
{
*aSize = mMaxBytes + (WasResumed() && mMaxBytes != -1 ? mResumedAt : 0);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetMIMEInfo(nsIMIMEInfo **aMIMEInfo)
{
*aMIMEInfo = mMIMEInfo;
NS_IF_ADDREF(*aMIMEInfo);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetTargetFile(nsIFile **aTargetFile)
{
nsresult rv;
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mTarget, &rv);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIFile> file;
rv = fileURL->GetFile(getter_AddRefs(file));
if (NS_SUCCEEDED(rv))
rv = CallQueryInterface(file, aTargetFile);
return rv;
}
NS_IMETHODIMP
nsDownload::GetSpeed(double *aSpeed)
{
*aSpeed = mSpeed;
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetId(PRUint32 *aId)
{
*aId = mID;
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetReferrer(nsIURI **referrer)
{
NS_IF_ADDREF(*referrer = mReferrer);
return NS_OK;
}
NS_IMETHODIMP
nsDownload::GetResumable(bool *resumable)
{
*resumable = IsResumable();
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
//// nsDownload Helper Functions
void
nsDownload::Finalize()
{
// We're stopping, so break the cycle we created at download start
mCancelable = nsnull;
// Reset values that aren't needed anymore, so the DB can be updated as well
mEntityID.Truncate();
mTempFile = nsnull;
// Remove ourself from the active downloads
(void)mDownloadManager->mCurrentDownloads.RemoveObject(this);
// Make sure we do not automatically resume
mAutoResume = DONT_RESUME;
}
nsresult
nsDownload::ExecuteDesiredAction()
{
// If we have a temp file and we have resumed, we have to do what the
// external helper app service would have done.
if (!mTempFile || !WasResumed())
return NS_OK;
// We need to bail if for some reason the temp file got removed
bool fileExists;
if (NS_FAILED(mTempFile->Exists(&fileExists)) || !fileExists)
return NS_ERROR_FILE_NOT_FOUND;
// Assume an unknown action is save to disk
nsHandlerInfoAction action = nsIMIMEInfo::saveToDisk;
if (mMIMEInfo) {
nsresult rv = mMIMEInfo->GetPreferredAction(&action);
NS_ENSURE_SUCCESS(rv, rv);
}
nsresult retVal = NS_OK;
switch (action) {
case nsIMIMEInfo::saveToDisk:
// Move the file to the proper location
retVal = MoveTempToTarget();
break;
case nsIMIMEInfo::useHelperApp:
case nsIMIMEInfo::useSystemDefault:
// For these cases we have to move the file to the target location and
// open with the appropriate application
retVal = OpenWithApplication();
break;
default:
break;
}
return retVal;
}
nsresult
nsDownload::MoveTempToTarget()
{
nsCOMPtr<nsIFile> target;
nsresult rv = GetTargetFile(getter_AddRefs(target));
NS_ENSURE_SUCCESS(rv, rv);
// MoveTo will fail if the file already exists, but we've already obtained
// confirmation from the user that this is OK, so remove it if it exists.
bool fileExists;
if (NS_SUCCEEDED(target->Exists(&fileExists)) && fileExists) {
rv = target->Remove(false);
NS_ENSURE_SUCCESS(rv, rv);
}
// Extract the new leaf name from the file location
nsAutoString fileName;
rv = target->GetLeafName(fileName);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> dir;
rv = target->GetParent(getter_AddRefs(dir));
NS_ENSURE_SUCCESS(rv, rv);
rv = mTempFile->MoveTo(dir, fileName);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
nsDownload::OpenWithApplication()
{
// First move the temporary file to the target location
nsCOMPtr<nsIFile> target;
nsresult rv = GetTargetFile(getter_AddRefs(target));
NS_ENSURE_SUCCESS(rv, rv);
// Move the temporary file to the target location
rv = MoveTempToTarget();
NS_ENSURE_SUCCESS(rv, rv);
// We do not verify the return value here because, irrespective of success
// or failure of the method, the deletion of temp file has to take place, as
// per the corresponding preference. But we store this separately as this is
// what we ultimately return from this function.
nsresult retVal = mMIMEInfo->LaunchWithFile(target);
bool deleteTempFileOnExit;
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (!prefs || NS_FAILED(prefs->GetBoolPref(PREF_BH_DELETETEMPFILEONEXIT,
&deleteTempFileOnExit))) {
// No prefservice or no pref set; use default value
#if !defined(XP_MACOSX)
// Mac users have been very verbal about temp files being deleted on
// app exit - they don't like it - but we'll continue to do this on
// other platforms for now.
deleteTempFileOnExit = true;
#else
deleteTempFileOnExit = false;
#endif
}
// Always schedule files to be deleted at the end of the private browsing
// mode, regardless of the value of the pref.
if (deleteTempFileOnExit ||
nsDownloadManager::gDownloadManagerService->mInPrivateBrowsing) {
// Use the ExternalHelperAppService to push the temporary file to the list
// of files to be deleted on exit.
nsCOMPtr<nsPIExternalAppLauncher> appLauncher(do_GetService
(NS_EXTERNALHELPERAPPSERVICE_CONTRACTID));
// Even if we are unable to get this service we return the result
// of LaunchWithFile() which makes more sense.
if (appLauncher)
(void)appLauncher->DeleteTemporaryFileOnExit(target);
}
return retVal;
}
void
nsDownload::SetStartTime(PRInt64 aStartTime)
{
mStartTime = aStartTime;
mLastUpdate = aStartTime;
}
void
nsDownload::SetProgressBytes(PRInt64 aCurrBytes, PRInt64 aMaxBytes)
{
mCurrBytes = aCurrBytes;
mMaxBytes = aMaxBytes;
// Get the real bytes that include resume position
PRInt64 currBytes, maxBytes;
(void)GetAmountTransferred(&currBytes);
(void)GetSize(&maxBytes);
if (currBytes == maxBytes)
mPercentComplete = 100;
else if (maxBytes <= 0)
mPercentComplete = -1;
else
mPercentComplete = (PRInt32)((PRFloat64)currBytes / maxBytes * 100 + .5);
}
nsresult
nsDownload::Pause()
{
if (!IsResumable())
return NS_ERROR_UNEXPECTED;
nsresult rv = Cancel();
NS_ENSURE_SUCCESS(rv, rv);
return SetState(nsIDownloadManager::DOWNLOAD_PAUSED);
}
nsresult
nsDownload::Cancel()
{
nsresult rv = NS_OK;
if (mCancelable) {
rv = mCancelable->Cancel(NS_BINDING_ABORTED);
// we're done with this, so break the cycle
mCancelable = nsnull;
}
return rv;
}
nsresult
nsDownload::Resume()
{
if (!IsPaused() || !IsResumable())
return NS_ERROR_UNEXPECTED;
nsresult rv;
nsCOMPtr<nsIWebBrowserPersist> wbp =
do_CreateInstance("@mozilla.org/embedding/browser/nsWebBrowserPersist;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = wbp->SetPersistFlags(nsIWebBrowserPersist::PERSIST_FLAGS_APPEND_TO_FILE |
nsIWebBrowserPersist::PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION);
NS_ENSURE_SUCCESS(rv, rv);
// Create a new channel for the source URI
nsCOMPtr<nsIChannel> channel;
nsCOMPtr<nsIInterfaceRequestor> ir(do_QueryInterface(wbp));
rv = NS_NewChannel(getter_AddRefs(channel), mSource, nsnull, nsnull, ir);
NS_ENSURE_SUCCESS(rv, rv);
// Make sure we can get a file, either the temporary or the real target, for
// both purposes of file size and a target to write to
nsCOMPtr<nsIFile> targetLocalFile(mTempFile);
if (!targetLocalFile) {
rv = GetTargetFile(getter_AddRefs(targetLocalFile));
NS_ENSURE_SUCCESS(rv, rv);
}
// Get the file size to be used as an offset, but if anything goes wrong
// along the way, we'll silently restart at 0.
PRInt64 fileSize;
// We need a nsIFile clone to deal with file size caching issues. :(
nsCOMPtr<nsIFile> clone;
if (NS_FAILED(targetLocalFile->Clone(getter_AddRefs(clone))) ||
NS_FAILED(clone->GetFileSize(&fileSize)))
fileSize = 0;
// Set the channel to resume at the right position along with the entityID
nsCOMPtr<nsIResumableChannel> resumableChannel(do_QueryInterface(channel));
if (!resumableChannel)
return NS_ERROR_UNEXPECTED;
rv = resumableChannel->ResumeAt(fileSize, mEntityID);
NS_ENSURE_SUCCESS(rv, rv);
// If we know the max size, we know what it should be when resuming
PRInt64 maxBytes;
GetSize(&maxBytes);
SetProgressBytes(0, maxBytes != -1 ? maxBytes - fileSize : -1);
// Track where we resumed because progress notifications restart at 0
mResumedAt = fileSize;
// Set the referrer
if (mReferrer) {
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
if (httpChannel) {
rv = httpChannel->SetReferrer(mReferrer);
NS_ENSURE_SUCCESS(rv, rv);
}
}
// Creates a cycle that will be broken when the download finishes
mCancelable = wbp;
(void)wbp->SetProgressListener(this);
// Save the channel using nsIWBP
rv = wbp->SaveChannel(channel, targetLocalFile);
if (NS_FAILED(rv)) {
mCancelable = nsnull;
(void)wbp->SetProgressListener(nsnull);
return rv;
}
return SetState(nsIDownloadManager::DOWNLOAD_DOWNLOADING);
}
bool
nsDownload::IsPaused()
{
return mDownloadState == nsIDownloadManager::DOWNLOAD_PAUSED;
}
bool
nsDownload::IsResumable()
{
return !mEntityID.IsEmpty();
}
bool
nsDownload::WasResumed()
{
return mResumedAt != -1;
}
bool
nsDownload::ShouldAutoResume()
{
return mAutoResume == AUTO_RESUME;
}
bool
nsDownload::IsFinishable()
{
return mDownloadState == nsIDownloadManager::DOWNLOAD_NOTSTARTED ||
mDownloadState == nsIDownloadManager::DOWNLOAD_QUEUED ||
mDownloadState == nsIDownloadManager::DOWNLOAD_DOWNLOADING;
}
bool
nsDownload::IsFinished()
{
return mDownloadState == nsIDownloadManager::DOWNLOAD_FINISHED;
}
nsresult
nsDownload::UpdateDB()
{
NS_ASSERTION(mID, "Download ID is stored as zero. This is bad!");
NS_ASSERTION(mDownloadManager, "Egads! We have no download manager!");
mozIStorageStatement *stmt = mDownloadManager->mUpdateDownloadStatement;
nsAutoString tempPath;
if (mTempFile)
(void)mTempFile->GetPath(tempPath);
nsresult rv = stmt->BindStringByName(NS_LITERAL_CSTRING("tempPath"), tempPath);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("startTime"), mStartTime);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("endTime"), mLastUpdate);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("state"), mDownloadState);
NS_ENSURE_SUCCESS(rv, rv);
if (mReferrer) {
nsCAutoString referrer;
rv = mReferrer->GetSpec(referrer);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("referrer"), referrer);
} else {
rv = stmt->BindNullByName(NS_LITERAL_CSTRING("referrer"));
}
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("entityID"), mEntityID);
NS_ENSURE_SUCCESS(rv, rv);
PRInt64 currBytes;
(void)GetAmountTransferred(&currBytes);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("currBytes"), currBytes);
NS_ENSURE_SUCCESS(rv, rv);
PRInt64 maxBytes;
(void)GetSize(&maxBytes);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("maxBytes"), maxBytes);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("autoResume"), mAutoResume);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"), mID);
NS_ENSURE_SUCCESS(rv, rv);
return stmt->Execute();
}
nsresult
nsDownload::FailDownload(nsresult aStatus, const PRUnichar *aMessage)
{
// Grab the bundle before potentially losing our member variables
nsCOMPtr<nsIStringBundle> bundle = mDownloadManager->mBundle;
(void)SetState(nsIDownloadManager::DOWNLOAD_FAILED);
// Get title for alert.
nsXPIDLString title;
nsresult rv = bundle->GetStringFromName(
NS_LITERAL_STRING("downloadErrorAlertTitle").get(), getter_Copies(title));
NS_ENSURE_SUCCESS(rv, rv);
// Get a generic message if we weren't supplied one
nsXPIDLString message;
message = aMessage;
if (message.IsEmpty()) {
rv = bundle->GetStringFromName(
NS_LITERAL_STRING("downloadErrorGeneric").get(), getter_Copies(message));
NS_ENSURE_SUCCESS(rv, rv);
}
// Get Download Manager window to be parent of alert
nsCOMPtr<nsIWindowMediator> wm =
do_GetService(NS_WINDOWMEDIATOR_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMWindow> dmWindow;
rv = wm->GetMostRecentWindow(NS_LITERAL_STRING("Download:Manager").get(),
getter_AddRefs(dmWindow));
NS_ENSURE_SUCCESS(rv, rv);
// Show alert
nsCOMPtr<nsIPromptService> prompter =
do_GetService("@mozilla.org/embedcomp/prompt-service;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
return prompter->Alert(dmWindow, title, message);
}
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