uriloader/exthandler/ExternalHelperAppChild.cpp@97036ab72558 (annotated)
uriloader/exthandler/ExternalHelperAppChild.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #include "ExternalHelperAppChild.h" |
| michael@0 | 8 | #include "mozilla/net/ChannelDiverterChild.h" |
| michael@0 | 9 | #include "nsIDivertableChannel.h" |
| michael@0 | 10 | #include "nsIInputStream.h" |
| michael@0 | 11 | #include "nsIFTPChannel.h" |
| michael@0 | 12 | #include "nsIRequest.h" |
| michael@0 | 13 | #include "nsIResumableChannel.h" |
| michael@0 | 14 | #include "nsNetUtil.h" |
| michael@0 | 15 | |
| michael@0 | 16 | namespace mozilla { |
| michael@0 | 17 | namespace dom { |
| michael@0 | 18 | |
| michael@0 | 19 | NS_IMPL_ISUPPORTS(ExternalHelperAppChild, |
| michael@0 | 20 | nsIStreamListener, |
| michael@0 | 21 | nsIRequestObserver) |
| michael@0 | 22 | |
| michael@0 | 23 | ExternalHelperAppChild::ExternalHelperAppChild() |
| michael@0 | 24 | : mStatus(NS_OK) |
| michael@0 | 25 | { |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | ExternalHelperAppChild::~ExternalHelperAppChild() |
| michael@0 | 29 | { |
| michael@0 | 30 | } |
| michael@0 | 31 | |
| michael@0 | 32 | //----------------------------------------------------------------------------- |
| michael@0 | 33 | // nsIStreamListener |
| michael@0 | 34 | //----------------------------------------------------------------------------- |
| michael@0 | 35 | NS_IMETHODIMP |
| michael@0 | 36 | ExternalHelperAppChild::OnDataAvailable(nsIRequest *request, |
| michael@0 | 37 | nsISupports *ctx, |
| michael@0 | 38 | nsIInputStream *input, |
| michael@0 | 39 | uint64_t offset, |
| michael@0 | 40 | uint32_t count) |
| michael@0 | 41 | { |
| michael@0 | 42 | if (NS_FAILED(mStatus)) |
| michael@0 | 43 | return mStatus; |
| michael@0 | 44 | |
| michael@0 | 45 | nsCString data; |
| michael@0 | 46 | nsresult rv = NS_ReadInputStreamToString(input, data, count); |
| michael@0 | 47 | if (NS_FAILED(rv)) |
| michael@0 | 48 | return rv; |
| michael@0 | 49 | |
| michael@0 | 50 | if (!SendOnDataAvailable(data, offset, count)) |
| michael@0 | 51 | return NS_ERROR_UNEXPECTED; |
| michael@0 | 52 | |
| michael@0 | 53 | return NS_OK; |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | ////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 57 | // nsIRequestObserver |
| michael@0 | 58 | ////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 59 | |
| michael@0 | 60 | NS_IMETHODIMP |
| michael@0 | 61 | ExternalHelperAppChild::OnStartRequest(nsIRequest *request, nsISupports *ctx) |
| michael@0 | 62 | { |
| michael@0 | 63 | nsCOMPtr<nsIDivertableChannel> divertable = do_QueryInterface(request); |
| michael@0 | 64 | if (divertable) { |
| michael@0 | 65 | return DivertToParent(divertable, request); |
| michael@0 | 66 | } |
| michael@0 | 67 | |
| michael@0 | 68 | nsresult rv = mHandler->OnStartRequest(request, ctx); |
| michael@0 | 69 | NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED); |
| michael@0 | 70 | |
| michael@0 | 71 | nsCString entityID; |
| michael@0 | 72 | nsCOMPtr<nsIResumableChannel> resumable(do_QueryInterface(request)); |
| michael@0 | 73 | if (resumable) { |
| michael@0 | 74 | resumable->GetEntityID(entityID); |
| michael@0 | 75 | } |
| michael@0 | 76 | SendOnStartRequest(entityID); |
| michael@0 | 77 | return NS_OK; |
| michael@0 | 78 | } |
| michael@0 | 79 | |
| michael@0 | 80 | NS_IMETHODIMP |
| michael@0 | 81 | ExternalHelperAppChild::OnStopRequest(nsIRequest *request, |
| michael@0 | 82 | nsISupports *ctx, |
| michael@0 | 83 | nsresult status) |
| michael@0 | 84 | { |
| michael@0 | 85 | // mHandler can be null if we diverted the request to the parent |
| michael@0 | 86 | if (mHandler) { |
| michael@0 | 87 | nsresult rv = mHandler->OnStopRequest(request, ctx, status); |
| michael@0 | 88 | SendOnStopRequest(status); |
| michael@0 | 89 | NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED); |
| michael@0 | 90 | } |
| michael@0 | 91 | |
| michael@0 | 92 | return NS_OK; |
| michael@0 | 93 | } |
| michael@0 | 94 | |
| michael@0 | 95 | nsresult |
| michael@0 | 96 | ExternalHelperAppChild::DivertToParent(nsIDivertableChannel *divertable, nsIRequest *request) |
| michael@0 | 97 | { |
| michael@0 | 98 | mozilla::net::ChannelDiverterChild *diverter = nullptr; |
| michael@0 | 99 | nsresult rv = divertable->DivertToParent(&diverter); |
| michael@0 | 100 | if (NS_WARN_IF(NS_FAILED(rv))) { |
| michael@0 | 101 | return rv; |
| michael@0 | 102 | } |
| michael@0 | 103 | |
| michael@0 | 104 | MOZ_ASSERT(diverter); |
| michael@0 | 105 | if (SendDivertToParentUsing(diverter)) { |
| michael@0 | 106 | mHandler->DidDivertRequest(request); |
| michael@0 | 107 | mHandler = nullptr; |
| michael@0 | 108 | return NS_OK; |
| michael@0 | 109 | } |
| michael@0 | 110 | |
| michael@0 | 111 | return NS_ERROR_FAILURE; |
| michael@0 | 112 | } |
| michael@0 | 113 | |
| michael@0 | 114 | bool |
| michael@0 | 115 | ExternalHelperAppChild::RecvCancel(const nsresult& aStatus) |
| michael@0 | 116 | { |
| michael@0 | 117 | mStatus = aStatus; |
| michael@0 | 118 | return true; |
| michael@0 | 119 | } |
| michael@0 | 120 | |
| michael@0 | 121 | } // namespace dom |
| michael@0 | 122 | } // namespace mozilla |
