ipc/testshell/TestShellParent.cpp@97036ab72558 (annotated)
ipc/testshell/TestShellParent.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 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | #include "TestShellParent.h" |
| michael@0 | 6 | |
| michael@0 | 7 | /* This must occur *after* TestShellParent.h to avoid typedefs conflicts. */ |
| michael@0 | 8 | #include "mozilla/ArrayUtils.h" |
| michael@0 | 9 | |
| michael@0 | 10 | #include "mozilla/dom/ContentParent.h" |
| michael@0 | 11 | |
| michael@0 | 12 | #include "nsAutoPtr.h" |
| michael@0 | 13 | #include "nsCxPusher.h" |
| michael@0 | 14 | |
| michael@0 | 15 | using namespace mozilla; |
| michael@0 | 16 | using mozilla::ipc::TestShellParent; |
| michael@0 | 17 | using mozilla::ipc::TestShellCommandParent; |
| michael@0 | 18 | using mozilla::ipc::PTestShellCommandParent; |
| michael@0 | 19 | using mozilla::dom::ContentParent; |
| michael@0 | 20 | |
| michael@0 | 21 | PTestShellCommandParent* |
| michael@0 | 22 | TestShellParent::AllocPTestShellCommandParent(const nsString& aCommand) |
| michael@0 | 23 | { |
| michael@0 | 24 | return new TestShellCommandParent(); |
| michael@0 | 25 | } |
| michael@0 | 26 | |
| michael@0 | 27 | bool |
| michael@0 | 28 | TestShellParent::DeallocPTestShellCommandParent(PTestShellCommandParent* aActor) |
| michael@0 | 29 | { |
| michael@0 | 30 | delete aActor; |
| michael@0 | 31 | return true; |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | bool |
| michael@0 | 35 | TestShellParent::CommandDone(TestShellCommandParent* command, |
| michael@0 | 36 | const nsString& aResponse) |
| michael@0 | 37 | { |
| michael@0 | 38 | // XXX what should happen if the callback fails? |
| michael@0 | 39 | /*bool ok = */command->RunCallback(aResponse); |
| michael@0 | 40 | command->ReleaseCallback(); |
| michael@0 | 41 | |
| michael@0 | 42 | return true; |
| michael@0 | 43 | } |
| michael@0 | 44 | |
| michael@0 | 45 | bool |
| michael@0 | 46 | TestShellCommandParent::SetCallback(JSContext* aCx, |
| michael@0 | 47 | JS::Value aCallback) |
| michael@0 | 48 | { |
| michael@0 | 49 | if (!mCallback.Hold(aCx)) { |
| michael@0 | 50 | return false; |
| michael@0 | 51 | } |
| michael@0 | 52 | |
| michael@0 | 53 | mCallback = aCallback; |
| michael@0 | 54 | mCx = aCx; |
| michael@0 | 55 | |
| michael@0 | 56 | return true; |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | bool |
| michael@0 | 60 | TestShellCommandParent::RunCallback(const nsString& aResponse) |
| michael@0 | 61 | { |
| michael@0 | 62 | NS_ENSURE_TRUE(!mCallback.get().isNull() && mCx, false); |
| michael@0 | 63 | |
| michael@0 | 64 | // We're pulling a cx off the heap, so make sure it's stack-top. |
| michael@0 | 65 | AutoCxPusher pusher(mCx); |
| michael@0 | 66 | NS_ENSURE_TRUE(mCallback.ToJSObject(), false); |
| michael@0 | 67 | JSAutoCompartment ac(mCx, mCallback.ToJSObject()); |
| michael@0 | 68 | JS::Rooted<JSObject*> global(mCx, JS::CurrentGlobalOrNull(mCx)); |
| michael@0 | 69 | |
| michael@0 | 70 | JSString* str = JS_NewUCStringCopyN(mCx, aResponse.get(), aResponse.Length()); |
| michael@0 | 71 | NS_ENSURE_TRUE(str, false); |
| michael@0 | 72 | |
| michael@0 | 73 | JS::Rooted<JS::Value> strVal(mCx, JS::StringValue(str)); |
| michael@0 | 74 | |
| michael@0 | 75 | JS::Rooted<JS::Value> rval(mCx); |
| michael@0 | 76 | JS::Rooted<JS::Value> callback(mCx, mCallback); |
| michael@0 | 77 | bool ok = JS_CallFunctionValue(mCx, global, callback, strVal, &rval); |
| michael@0 | 78 | NS_ENSURE_TRUE(ok, false); |
| michael@0 | 79 | |
| michael@0 | 80 | return true; |
| michael@0 | 81 | } |
| michael@0 | 82 | |
| michael@0 | 83 | void |
| michael@0 | 84 | TestShellCommandParent::ReleaseCallback() |
| michael@0 | 85 | { |
| michael@0 | 86 | mCallback.Release(); |
| michael@0 | 87 | } |
| michael@0 | 88 | |
| michael@0 | 89 | bool |
| michael@0 | 90 | TestShellCommandParent::ExecuteCallback(const nsString& aResponse) |
| michael@0 | 91 | { |
| michael@0 | 92 | return static_cast<TestShellParent*>(Manager())->CommandDone( |
| michael@0 | 93 | this, aResponse); |
| michael@0 | 94 | } |
| michael@0 | 95 | |
| michael@0 | 96 | void |
| michael@0 | 97 | TestShellCommandParent::ActorDestroy(ActorDestroyReason why) |
| michael@0 | 98 | { |
| michael@0 | 99 | if (why == AbnormalShutdown) { |
| michael@0 | 100 | ExecuteCallback(EmptyString()); |
| michael@0 | 101 | } |
| michael@0 | 102 | } |
