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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 "android_webview/browser/aw_request_interceptor.h"
#include "android_webview/browser/aw_contents_io_thread_client.h"
#include "android_webview/browser/intercepted_request_data.h"
#include "base/android/jni_string.h"
#include "base/memory/scoped_ptr.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/resource_request_info.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "net/url_request/url_request_job.h"
using content::BrowserThread;
using content::RenderViewHost;
using content::ResourceRequestInfo;
namespace android_webview {
namespace {
const void* kURLRequestUserDataKey = &kURLRequestUserDataKey;
class URLRequestUserData : public base::SupportsUserData::Data {
public:
URLRequestUserData(
scoped_ptr<InterceptedRequestData> intercepted_request_data)
: intercepted_request_data_(intercepted_request_data.Pass()) {
}
static URLRequestUserData* Get(net::URLRequest* request) {
return reinterpret_cast<URLRequestUserData*>(
request->GetUserData(kURLRequestUserDataKey));
}
const InterceptedRequestData* intercepted_request_data() const {
return intercepted_request_data_.get();
}
private:
scoped_ptr<InterceptedRequestData> intercepted_request_data_;
};
} // namespace
AwRequestInterceptor::AwRequestInterceptor() {
}
AwRequestInterceptor::~AwRequestInterceptor() {
}
scoped_ptr<InterceptedRequestData>
AwRequestInterceptor::QueryForInterceptedRequestData(
const GURL& location,
net::URLRequest* request) const {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
int render_process_id, render_view_id;
if (!ResourceRequestInfo::GetRenderViewForRequest(
request, &render_process_id, &render_view_id))
return scoped_ptr<InterceptedRequestData>();
scoped_ptr<AwContentsIoThreadClient> io_thread_client =
AwContentsIoThreadClient::FromID(render_process_id, render_view_id);
if (!io_thread_client.get())
return scoped_ptr<InterceptedRequestData>();
return io_thread_client->ShouldInterceptRequest(location, request).Pass();
}
net::URLRequestJob* AwRequestInterceptor::MaybeCreateJob(
net::URLRequest* request,
net::NetworkDelegate* network_delegate) const {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
// See if we've already found out the intercepted_request_data for this
// request.
// This is done not only for efficiency reasons, but also for correctness
// as it is possible for the Interceptor chain to be invoked more than once
// (in which case we don't want to query the embedder multiple times).
URLRequestUserData* user_data = URLRequestUserData::Get(request);
if (!user_data) {
// To ensure we only query the embedder once, we rely on the fact that the
// user_data object will be created and attached to the URLRequest after a
// call to QueryForInterceptedRequestData is made (regardless of whether
// the result of that call is a valid InterceptedRequestData* pointer or
// NULL.
user_data = new URLRequestUserData(
QueryForInterceptedRequestData(request->url(), request));
request->SetUserData(kURLRequestUserDataKey, user_data);
}
const InterceptedRequestData* intercepted_request_data =
user_data->intercepted_request_data();
if (!intercepted_request_data)
return NULL;
return intercepted_request_data->CreateJobFor(request, network_delegate);
}
} // namespace android_webview
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