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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "config.h"
#include "webkit/glue/resource_fetcher.h"
#pragma warning(push, 0)
#include "FrameLoader.h"
#include "ResourceHandle.h"
#include "ResourceRequest.h"
#pragma warning(pop)
#undef LOG
#include "base/logging.h"
#include "webkit/glue/glue_util.h"
#include "net/url_request/url_request_status.h"
using WebCore::ResourceError;
using WebCore::ResourceHandle;
using WebCore::ResourceResponse;
ResourceFetcher::ResourceFetcher(const GURL& url, WebCore::Frame* frame,
Delegate* d)
: url_(url), delegate_(d), completed_(false) {
// Can't do anything without a frame. However, delegate can be NULL (so we
// can do a http request and ignore the results).
DCHECK(frame);
Start(frame);
}
ResourceFetcher::~ResourceFetcher() {
if (!completed_)
loader_->cancel();
loader_ = NULL;
}
void ResourceFetcher::Cancel() {
if (!completed_) {
loader_->cancel();
completed_ = true;
}
}
void ResourceFetcher::Start(WebCore::Frame* frame) {
WebCore::FrameLoader* frame_loader = frame->loader();
if (!frame_loader) {
// We put this on a 0 timer so the callback happens async (consistent with
// regular fetches).
start_failed_timer_.reset(new StartFailedTimer(this,
&ResourceFetcher::StartFailed));
start_failed_timer_->startOneShot(0);
return;
}
WebCore::ResourceRequest request(webkit_glue::GURLToKURL(url_));
request.setFrame(frame);
loader_ = ResourceHandle::create(request, this, NULL, false, false);
}
void ResourceFetcher::StartFailed(StartFailedTimer* timer) {
didFail(NULL, ResourceError());
}
/////////////////////////////////////////////////////////////////////////////
// ResourceHandleClient methods
void ResourceFetcher::didReceiveResponse(ResourceHandle* resource_handle,
const ResourceResponse& response) {
ASSERT(!completed_);
// It's safe to use the ResourceResponse copy constructor
// (xmlhttprequest.cpp uses it).
response_ = response;
}
void ResourceFetcher::didReceiveData(ResourceHandle* resource_handle,
const char* data, int length,
int total_length) {
ASSERT(!completed_);
if (length <= 0)
return;
data_.append(data, length);
}
void ResourceFetcher::didFinishLoading(ResourceHandle* resource_handle) {
ASSERT(!completed_);
completed_ = true;
if (delegate_)
delegate_->OnURLFetchComplete(response_, data_);
}
void ResourceFetcher::didFail(ResourceHandle* resource_handle,
const ResourceError& error) {
ASSERT(!completed_);
completed_ = true;
// Go ahead and tell our delegate that we're done. Send an empty
// ResourceResponse and string.
if (delegate_)
delegate_->OnURLFetchComplete(ResourceResponse(), std::string());
}
/////////////////////////////////////////////////////////////////////////////
// A resource fetcher with a timeout
ResourceFetcherWithTimeout::ResourceFetcherWithTimeout(
const GURL& url, WebCore::Frame* frame, double timeout_secs, Delegate* d)
: ResourceFetcher(url, frame, d) {
timeout_timer_.reset(new FetchTimer(this,
&ResourceFetcherWithTimeout::TimeoutFired));
timeout_timer_->startOneShot(timeout_secs);
}
void ResourceFetcherWithTimeout::TimeoutFired(FetchTimer* timer) {
if (!completed_) {
loader_->cancel();
didFail(NULL, ResourceError());
}
}
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