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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // File method ordering: Methods in this file are in the same order as | 5 // File method ordering: Methods in this file are in the same order as |
6 // in download_item_impl.h, with the following exception: The public | 6 // in download_item_impl.h, with the following exception: The public |
7 // interface Start is placed in chronological order with the other | 7 // interface Start is placed in chronological order with the other |
8 // (private) routines that together define a DownloadItem's state | 8 // (private) routines that together define a DownloadItem's state |
9 // transitions as the download progresses. See "Download progression | 9 // transitions as the download progresses. See "Download progression |
10 // cascade" later in this file. | 10 // cascade" later in this file. |
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497 return is_temporary_; | 497 return is_temporary_; |
498 } | 498 } |
499 | 499 |
500 bool DownloadItemImpl::CanResume() const { | 500 bool DownloadItemImpl::CanResume() const { |
501 if ((GetState() == IN_PROGRESS) && IsPaused()) | 501 if ((GetState() == IN_PROGRESS) && IsPaused()) |
502 return true; | 502 return true; |
503 | 503 |
504 if (state_ != INTERRUPTED_INTERNAL) | 504 if (state_ != INTERRUPTED_INTERNAL) |
505 return false; | 505 return false; |
506 | 506 |
507 // Downloads that don't have a WebContents should still be resumable, but this | 507 // We currently only support HTTP(S) requests for download resumption. |
508 // isn't currently the case. See ResumeInterruptedDownload(). | 508 if (!GetURL().SchemeIsHTTPOrHTTPS()) |
509 if (!GetWebContents()) | |
510 return false; | 509 return false; |
511 | 510 |
512 ResumeMode resume_mode = GetResumeMode(); | 511 ResumeMode resume_mode = GetResumeMode(); |
513 return IsDownloadResumptionEnabled() && | 512 return IsDownloadResumptionEnabled() && |
514 (resume_mode == RESUME_MODE_USER_RESTART || | 513 (resume_mode == RESUME_MODE_USER_RESTART || |
515 resume_mode == RESUME_MODE_USER_CONTINUE); | 514 resume_mode == RESUME_MODE_USER_CONTINUE); |
516 } | 515 } |
517 | 516 |
518 bool DownloadItemImpl::IsDone() const { | 517 bool DownloadItemImpl::IsDone() const { |
519 switch (state_) { | 518 switch (state_) { |
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1686 // this request. | 1685 // this request. |
1687 const base::CommandLine& command_line = | 1686 const base::CommandLine& command_line = |
1688 *base::CommandLine::ForCurrentProcess(); | 1687 *base::CommandLine::ForCurrentProcess(); |
1689 if (!command_line.HasSwitch(switches::kEnableDownloadResumption)) | 1688 if (!command_line.HasSwitch(switches::kEnableDownloadResumption)) |
1690 return; | 1689 return; |
1691 | 1690 |
1692 // If we're not interrupted, ignore the request; our caller is drunk. | 1691 // If we're not interrupted, ignore the request; our caller is drunk. |
1693 if (state_ != INTERRUPTED_INTERNAL) | 1692 if (state_ != INTERRUPTED_INTERNAL) |
1694 return; | 1693 return; |
1695 | 1694 |
1696 // If we can't get a web contents, we can't resume the download. | |
1697 // TODO(rdsmith): Find some alternative web contents to use--this | |
1698 // means we can't restart a download if it's a download imported | |
1699 // from the history. | |
1700 if (!GetWebContents()) | |
1701 return; | |
1702 | |
1703 // Reset the appropriate state if restarting. | 1695 // Reset the appropriate state if restarting. |
1704 ResumeMode mode = GetResumeMode(); | 1696 ResumeMode mode = GetResumeMode(); |
1705 if (mode == RESUME_MODE_IMMEDIATE_RESTART || | 1697 if (mode == RESUME_MODE_IMMEDIATE_RESTART || |
1706 mode == RESUME_MODE_USER_RESTART) { | 1698 mode == RESUME_MODE_USER_RESTART) { |
1707 received_bytes_ = 0; | 1699 received_bytes_ = 0; |
1708 hash_state_ = ""; | 1700 hash_state_ = ""; |
1709 last_modified_time_ = ""; | 1701 last_modified_time_ = ""; |
1710 etag_ = ""; | 1702 etag_ = ""; |
1711 } | 1703 } |
1712 | 1704 |
1713 scoped_ptr<DownloadUrlParameters> download_params( | 1705 scoped_ptr<DownloadUrlParameters> download_params; |
1714 DownloadUrlParameters::FromWebContents(GetWebContents(), | 1706 if (GetWebContents()) { |
1715 GetOriginalUrl())); | 1707 download_params = DownloadUrlParameters::FromWebContents(GetWebContents(), |
| 1708 GetOriginalUrl()); |
| 1709 } else if (GetBrowserContext()) { |
| 1710 download_params = make_scoped_ptr( |
| 1711 new DownloadUrlParameters(GetOriginalUrl(), -1, -1, -1, |
| 1712 GetBrowserContext()->GetResourceContext())); |
| 1713 } else { |
| 1714 return; |
| 1715 } |
1716 | 1716 |
1717 download_params->set_file_path(GetFullPath()); | 1717 download_params->set_file_path(GetFullPath()); |
1718 download_params->set_offset(GetReceivedBytes()); | 1718 download_params->set_offset(GetReceivedBytes()); |
1719 download_params->set_hash_state(GetHashState()); | 1719 download_params->set_hash_state(GetHashState()); |
1720 download_params->set_last_modified(GetLastModifiedTime()); | 1720 download_params->set_last_modified(GetLastModifiedTime()); |
1721 download_params->set_etag(GetETag()); | 1721 download_params->set_etag(GetETag()); |
1722 download_params->set_callback( | 1722 download_params->set_callback( |
1723 base::Bind(&DownloadItemImpl::OnResumeRequestStarted, | 1723 base::Bind(&DownloadItemImpl::OnResumeRequestStarted, |
1724 weak_ptr_factory_.GetWeakPtr())); | 1724 weak_ptr_factory_.GetWeakPtr())); |
1725 | 1725 |
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1805 case RESUME_MODE_USER_CONTINUE: | 1805 case RESUME_MODE_USER_CONTINUE: |
1806 return "USER_CONTINUE"; | 1806 return "USER_CONTINUE"; |
1807 case RESUME_MODE_USER_RESTART: | 1807 case RESUME_MODE_USER_RESTART: |
1808 return "USER_RESTART"; | 1808 return "USER_RESTART"; |
1809 } | 1809 } |
1810 NOTREACHED() << "Unknown resume mode " << mode; | 1810 NOTREACHED() << "Unknown resume mode " << mode; |
1811 return "unknown"; | 1811 return "unknown"; |
1812 } | 1812 } |
1813 | 1813 |
1814 } // namespace content | 1814 } // namespace content |
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