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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/intents/intent_injector.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/file_path.h"
#include "base/logging.h"
#include "base/string16.h"
#include "base/stringprintf.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "content/browser/intents/web_intents_dispatcher_impl.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/common/intents_messages.h"
#include "content/public/common/content_switches.h"
#include "webkit/fileapi/file_system_util.h"
#include "webkit/fileapi/isolated_context.h"
#include "webkit/glue/web_intent_data.h"
#include "webkit/glue/web_intent_reply_data.h"
namespace content {
IntentInjector::IntentInjector(WebContents* web_contents)
: WebContentsObserver(web_contents),
intents_dispatcher_(NULL),
ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)) {
DCHECK(web_contents);
}
IntentInjector::~IntentInjector() {
}
void IntentInjector::WebContentsDestroyed(WebContents* contents) {
if (intents_dispatcher_) {
intents_dispatcher_->SendReply(webkit_glue::WebIntentReply(
webkit_glue::WEB_INTENT_SERVICE_CONTENTS_CLOSED, string16()));
}
delete this;
}
void IntentInjector::SourceWebContentsDestroyed(WebContents* contents) {
intents_dispatcher_ = NULL;
}
void IntentInjector::SetIntent(
WebIntentsDispatcher* intents_dispatcher,
const webkit_glue::WebIntentData& intent) {
intents_dispatcher_ = intents_dispatcher;
intents_dispatcher_->RegisterReplyNotification(
base::Bind(&IntentInjector::OnSendReturnMessage,
weak_factory_.GetWeakPtr()));
source_intent_.reset(new webkit_glue::WebIntentData(intent));
initial_url_ = web_contents()->GetPendingSiteInstance()->GetSiteURL();
}
void IntentInjector::Abandon() {
intents_dispatcher_ = NULL;
delete this;
}
void IntentInjector::OnSendReturnMessage(
webkit_glue::WebIntentReplyType reply_type) {
intents_dispatcher_ = NULL;
}
void IntentInjector::RenderViewCreated(RenderViewHost* render_view_host) {
if (source_intent_.get() == NULL || !web_contents()->GetRenderViewHost())
return;
// Only deliver the intent to the renderer if it has the same origin
// as the initial delivery target.
if (initial_url_.GetOrigin() !=
render_view_host->GetSiteInstance()->GetSiteURL().GetOrigin()) {
return;
}
// If we're passing a browser-originated blob, either directly or as part of a
// payload, grant read permission on the blob file to the delivered context.
if (source_intent_->data_type == webkit_glue::WebIntentData::BLOB ||
(source_intent_->data_type == webkit_glue::WebIntentData::MIME_TYPE &&
!source_intent_->blob_file.empty())) {
const int child_id = render_view_host->GetProcess()->GetID();
ChildProcessSecurityPolicy* policy =
ChildProcessSecurityPolicy::GetInstance();
if (!policy->CanReadFile(child_id, source_intent_->blob_file))
policy->GrantReadFile(child_id, source_intent_->blob_file);
} else if (source_intent_->data_type ==
webkit_glue::WebIntentData::FILESYSTEM) {
const int child_id = render_view_host->GetProcess()->GetID();
base::FilePath path;
const bool valid =
fileapi::IsolatedContext::GetInstance()->GetRegisteredPath(
source_intent_->filesystem_id, &path);
DCHECK(valid);
ChildProcessSecurityPolicy* policy =
ChildProcessSecurityPolicy::GetInstance();
if (!policy->CanReadFile(child_id, path))
policy->GrantReadFile(child_id, path);
policy->GrantReadFileSystem(child_id, source_intent_->filesystem_id);
}
render_view_host->Send(new IntentsMsg_SetWebIntentData(
render_view_host->GetRoutingID(), *(source_intent_.get())));
}
bool IntentInjector::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(IntentInjector, message)
IPC_MESSAGE_HANDLER(IntentsHostMsg_WebIntentReply, OnReply);
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void IntentInjector::OnReply(const webkit_glue::WebIntentReply& reply) {
if (!intents_dispatcher_)
return;
// Ensure SendReplyMessage is only called once.
WebIntentsDispatcher* intents_dispatcher = intents_dispatcher_;
intents_dispatcher_ = NULL;
intents_dispatcher->SendReply(reply);
}
} // namespace content
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