// Copyright (c) 2011 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.
// An implementation of WebURLLoader in terms of ResourceLoaderBridge.
#include "webkit/glue/weburlloader_impl.h"
#include "base/file_path.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "base/process_util.h"
#include "base/string_util.h"
#include "base/time.h"
#include "net/base/data_url.h"
#include "net/base/load_flags.h"
#include "net/base/mime_util.h"
#include "net/base/net_errors.h"
#include "net/base/net_util.h"
#include "net/http/http_response_headers.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebHTTPHeaderVisitor.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebHTTPLoadInfo.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityPolicy.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLError.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLLoadTiming.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLLoaderClient.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLRequest.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLResponse.h"
#include "webkit/glue/ftp_directory_listing_response_delegate.h"
#include "webkit/glue/multipart_response_delegate.h"
#include "webkit/glue/resource_loader_bridge.h"
#include "webkit/glue/site_isolation_metrics.h"
#include "webkit/glue/webkit_glue.h"
using base::Time;
using base::TimeDelta;
using WebKit::WebData;
using WebKit::WebHTTPBody;
using WebKit::WebHTTPHeaderVisitor;
using WebKit::WebHTTPLoadInfo;
using WebKit::WebSecurityPolicy;
using WebKit::WebString;
using WebKit::WebURL;
using WebKit::WebURLError;
using WebKit::WebURLLoadTiming;
using WebKit::WebURLLoader;
using WebKit::WebURLLoaderClient;
using WebKit::WebURLRequest;
using WebKit::WebURLResponse;
namespace webkit_glue {
// Utilities ------------------------------------------------------------------
namespace {
class HeaderFlattener : public WebHTTPHeaderVisitor {
public:
explicit HeaderFlattener(int load_flags)
: load_flags_(load_flags),
has_accept_header_(false) {
}
virtual void visitHeader(const WebString& name, const WebString& value) {
// TODO(darin): is UTF-8 really correct here? It is if the strings are
// already ASCII (i.e., if they are already escaped properly).
const std::string& name_utf8 = name.utf8();
const std::string& value_utf8 = value.utf8();
// Skip over referrer headers found in the header map because we already
// pulled it out as a separate parameter.
if (LowerCaseEqualsASCII(name_utf8, "referer"))
return;
// Skip over "Cache-Control: max-age=0" header if the corresponding
// load flag is already specified. FrameLoader sets both the flag and
// the extra header -- the extra header is redundant since our network
// implementation will add the necessary headers based on load flags.
// See http://code.google.com/p/chromium/issues/detail?id=3434.
if ((load_flags_ & net::LOAD_VALIDATE_CACHE) &&
LowerCaseEqualsASCII(name_utf8, "cache-control") &&
LowerCaseEqualsASCII(value_utf8, "max-age=0"))
return;
if (LowerCaseEqualsASCII(name_utf8, "accept"))
has_accept_header_ = true;
if (!buffer_.empty())
buffer_.append("\r\n");
buffer_.append(name_utf8 + ": " + value_utf8);
}
const std::string& GetBuffer() {
// In some cases, WebKit doesn't add an Accept header, but not having the
// header confuses some web servers. See bug 808613.
if (!has_accept_header_) {
if (!buffer_.empty())
buffer_.append("\r\n");
buffer_.append("Accept: */*");
has_accept_header_ = true;
}
return buffer_;
}
private:
int load_flags_;
std::string buffer_;
bool has_accept_header_;
};
ResourceType::Type FromTargetType(WebURLRequest::TargetType type) {
switch (type) {
case WebURLRequest::TargetIsMainFrame:
return ResourceType::MAIN_FRAME;
case WebURLRequest::TargetIsSubframe:
return ResourceType::SUB_FRAME;
case WebURLRequest::TargetIsSubresource:
return ResourceType::SUB_RESOURCE;
case WebURLRequest::TargetIsStyleSheet:
return ResourceType::STYLESHEET;
case WebURLRequest::TargetIsScript:
return ResourceType::SCRIPT;
case WebURLRequest::TargetIsFontResource:
return ResourceType::FONT_RESOURCE;
case WebURLRequest::TargetIsImage:
return ResourceType::IMAGE;
case WebURLRequest::TargetIsObject:
return ResourceType::OBJECT;
case WebURLRequest::TargetIsMedia:
return ResourceType::MEDIA;
case WebURLRequest::TargetIsWorker:
return ResourceType::WORKER;
case WebURLRequest::TargetIsSharedWorker:
return ResourceType::SHARED_WORKER;
case WebURLRequest::TargetIsPrefetch:
return ResourceType::PREFETCH;
case WebURLRequest::TargetIsFavicon:
return ResourceType::FAVICON;
default:
NOTREACHED();
return ResourceType::SUB_RESOURCE;
}
}
// Extracts the information from a data: url.
bool GetInfoFromDataURL(const GURL& url,
ResourceResponseInfo* info,
std::string* data,
net::URLRequestStatus* status) {
std::string mime_type;
std::string charset;
if (net::DataURL::Parse(url, &mime_type, &charset, data)) {
*status = net::URLRequestStatus(net::URLRequestStatus::SUCCESS, 0);
info->request_time = Time::Now();
info->response_time = Time::Now();
info->headers = NULL;
info->mime_type.swap(mime_type);
info->charset.swap(charset);
info->security_info.clear();
info->content_length = -1;
info->encoded_data_length = 0;
info->load_timing.base_time = Time::Now();
return true;
}
*status = net::URLRequestStatus(net::URLRequestStatus::FAILED,
net::ERR_INVALID_URL);
return false;
}
typedef ResourceDevToolsInfo::HeadersVector HeadersVector;
void PopulateURLResponse(
const GURL& url,
const ResourceResponseInfo& info,
WebURLResponse* response) {
response->setURL(url);
response->setResponseTime(info.response_time.ToDoubleT());
response->setMIMEType(WebString::fromUTF8(info.mime_type));
response->setTextEncodingName(WebString::fromUTF8(info.charset));
response->setExpectedContentLength(info.content_length);
response->setSecurityInfo(info.security_info);
response->setAppCacheID(info.appcache_id);
response->setAppCacheManifestURL(info.appcache_manifest_url);
response->setWasCached(!info.load_timing.base_time.is_null() &&
info.response_time < info.load_timing.base_time);
response->setWasFetchedViaSPDY(info.was_fetched_via_spdy);
response->setWasNpnNegotiated(info.was_npn_negotiated);
response->setWasAlternateProtocolAvailable(
info.was_alternate_protocol_available);
response->setWasFetchedViaProxy(info.was_fetched_via_proxy);
response->setRemoteIPAddress(
WebString::fromUTF8(info.socket_address.host()));
response->setRemotePort(info.socket_address.port());
response->setConnectionID(info.connection_id);
response->setConnectionReused(info.connection_reused);
response->setDownloadFilePath(FilePathToWebString(info.download_file_path));
const ResourceLoadTimingInfo& timing_info = info.load_timing;
if (!timing_info.base_time.is_null()) {
WebURLLoadTiming timing;
timing.initialize();
timing.setRequestTime(timing_info.base_time.ToDoubleT());
timing.setProxyStart(timing_info.proxy_start);
timing.setProxyEnd(timing_info.proxy_end);
timing.setDNSStart(timing_info.dns_start);
timing.setDNSEnd(timing_info.dns_end);
timing.setConnectStart(timing_info.connect_start);
timing.setConnectEnd(timing_info.connect_end);
timing.setSSLStart(timing_info.ssl_start);
timing.setSSLEnd(timing_info.ssl_end);
timing.setSendStart(timing_info.send_start);
timing.setSendEnd(timing_info.send_end);
timing.setReceiveHeadersEnd(timing_info.receive_headers_end);
response->setLoadTiming(timing);
}
if (info.devtools_info.get()) {
WebHTTPLoadInfo load_info;
load_info.setHTTPStatusCode(info.devtools_info->http_status_code);
load_info.setHTTPStatusText(WebString::fromUTF8(
info.devtools_info->http_status_text));
load_info.setEncodedDataLength(info.encoded_data_length);
const HeadersVector& request_headers = info.devtools_info->request_headers;
for (HeadersVector::const_iterator it = request_headers.begin();
it != request_headers.end(); ++it) {
load_info.addRequestHeader(WebString::fromUTF8(it->first),
WebString::fromUTF8(it->second));
}
const HeadersVector& response_headers =
info.devtools_info->response_headers;
for (HeadersVector::const_iterator it = response_headers.begin();
it != response_headers.end(); ++it) {
load_info.addResponseHeader(WebString::fromUTF8(it->first),
WebString::fromUTF8(it->second));
}
response->setHTTPLoadInfo(load_info);
}
const net::HttpResponseHeaders* headers = info.headers;
if (!headers)
return;
response->setHTTPStatusCode(headers->response_code());
response->setHTTPStatusText(WebString::fromUTF8(headers->GetStatusText()));
// TODO(darin): We should leverage HttpResponseHeaders for this, and this
// should be using the same code as ResourceDispatcherHost.
// TODO(jungshik): Figure out the actual value of the referrer charset and
// pass it to GetSuggestedFilename.
std::string value;
if (headers->EnumerateHeader(NULL, "content-disposition", &value)) {
response->setSuggestedFileName(
net::GetSuggestedFilename(url, value, "", string16()));
}
Time time_val;
if (headers->GetLastModifiedValue(&time_val))
response->setLastModifiedDate(time_val.ToDoubleT());
// Build up the header map.
void* iter = NULL;
std::string name;
while (headers->EnumerateHeaderLines(&iter, &name, &value)) {
response->addHTTPHeaderField(WebString::fromUTF8(name),
WebString::fromUTF8(value));
}
}
} // namespace
// WebURLLoaderImpl::Context --------------------------------------------------
// This inner class exists since the WebURLLoader may be deleted while inside a
// call to WebURLLoaderClient. The bridge requires its Peer to stay alive
// until it receives OnCompletedRequest.
class WebURLLoaderImpl::Context : public base::RefCounted<Context>,
public ResourceLoaderBridge::Peer {
public:
explicit Context(WebURLLoaderImpl* loader);
WebURLLoaderClient* client() const { return client_; }
void set_client(WebURLLoaderClient* client) { client_ = client; }
void Cancel();
void SetDefersLoading(bool value);
void Start(
const WebURLRequest& request,
ResourceLoaderBridge::SyncLoadResponse* sync_load_response);
// ResourceLoaderBridge::Peer methods:
virtual void OnUploadProgress(uint64 position, uint64 size);
virtual bool OnReceivedRedirect(
const GURL& new_url,
const ResourceResponseInfo& info,
bool* has_new_first_party_for_cookies,
GURL* new_first_party_for_cookies);
virtual void OnReceivedResponse(const ResourceResponseInfo& info);
virtual void OnDownloadedData(int len);
virtual void OnReceivedData(const char* data,
int data_length,
int encoded_data_length);
virtual void OnReceivedCachedMetadata(const char* data, int len);
virtual void OnCompletedRequest(const net::URLRequestStatus& status,
const std::string& security_info,
const base::Time& completion_time);
private:
friend class base::RefCounted<Context>;
~Context() {}
// We can optimize the handling of data URLs in most cases.
bool CanHandleDataURL(const GURL& url) const;
void HandleDataURL();
WebURLLoaderImpl* loader_;
WebURLRequest request_;
WebURLLoaderClient* client_;
scoped_ptr<ResourceLoaderBridge> bridge_;
scoped_ptr<FtpDirectoryListingResponseDelegate> ftp_listing_delegate_;
scoped_ptr<MultipartResponseDelegate> multipart_delegate_;
scoped_ptr<ResourceLoaderBridge> completed_bridge_;
// TODO(japhet): Storing this is a temporary hack for site isolation logging.
WebURL response_url_;
};
WebURLLoaderImpl::Context::Context(WebURLLoaderImpl* loader)
: loader_(loader),
client_(NULL) {
}
void WebURLLoaderImpl::Context::Cancel() {
// The bridge will still send OnCompletedRequest, which will Release() us, so
// we don't do that here.
if (bridge_.get())
bridge_->Cancel();
// Ensure that we do not notify the multipart delegate anymore as it has
// its own pointer to the client.
if (multipart_delegate_.get())
multipart_delegate_->Cancel();
// Do not make any further calls to the client.
client_ = NULL;
loader_ = NULL;
}
void WebURLLoaderImpl::Context::SetDefersLoading(bool value) {
if (bridge_.get())
bridge_->SetDefersLoading(value);
}
void WebURLLoaderImpl::Context::Start(
const WebURLRequest& request,
ResourceLoaderBridge::SyncLoadResponse* sync_load_response) {
DCHECK(!bridge_.get());
request_ = request; // Save the request.
GURL url = request.url();
if (url.SchemeIs("data") && CanHandleDataURL(url)) {
if (sync_load_response) {
// This is a sync load. Do the work now.
sync_load_response->url = url;
std::string data;
GetInfoFromDataURL(sync_load_response->url, sync_load_response,
&sync_load_response->data,
&sync_load_response->status);
} else {
AddRef(); // Balanced in OnCompletedRequest
MessageLoop::current()->PostTask(FROM_HERE,
NewRunnableMethod(this, &Context::HandleDataURL));
}
return;
}
GURL referrer_url(
request.httpHeaderField(WebString::fromUTF8("Referer")).utf8());
const std::string& method = request.httpMethod().utf8();
int load_flags = net::LOAD_NORMAL;
switch (request.cachePolicy()) {
case WebURLRequest::ReloadIgnoringCacheData:
// Required by LayoutTests/http/tests/misc/refresh-headers.php
load_flags |= net::LOAD_VALIDATE_CACHE;
break;
case WebURLRequest::ReturnCacheDataElseLoad:
load_flags |= net::LOAD_PREFERRING_CACHE;
break;
case WebURLRequest::ReturnCacheDataDontLoad:
load_flags |= net::LOAD_ONLY_FROM_CACHE;
break;
case WebURLRequest::UseProtocolCachePolicy:
break;
}
if (request.reportUploadProgress())
load_flags |= net::LOAD_ENABLE_UPLOAD_PROGRESS;
if (request.reportLoadTiming())
load_flags |= net::LOAD_ENABLE_LOAD_TIMING;
if (request.reportRawHeaders())
load_flags |= net::LOAD_REPORT_RAW_HEADERS;
if (!request.allowCookies() || !request.allowStoredCredentials()) {
load_flags |= net::LOAD_DO_NOT_SAVE_COOKIES;
load_flags |= net::LOAD_DO_NOT_SEND_COOKIES;
}
if (!request.allowStoredCredentials())
load_flags |= net::LOAD_DO_NOT_SEND_AUTH_DATA;
HeaderFlattener flattener(load_flags);
request.visitHTTPHeaderFields(&flattener);
// TODO(abarth): These are wrong! I need to figure out how to get the right
// strings here. See: http://crbug.com/8706
std::string frame_origin = request.firstPartyForCookies().spec();
std::string main_frame_origin = request.firstPartyForCookies().spec();
// TODO(brettw) this should take parameter encoding into account when
// creating the GURLs.
ResourceLoaderBridge::RequestInfo request_info;
request_info.method = method;
request_info.url = url;
request_info.first_party_for_cookies = request.firstPartyForCookies();
request_info.referrer = referrer_url;
request_info.frame_origin = frame_origin;
request_info.main_frame_origin = main_frame_origin;
request_info.headers = flattener.GetBuffer();
request_info.load_flags = load_flags;
// requestor_pid only needs to be non-zero if the request originates outside
// the render process, so we can use requestorProcessID even for requests
// from in-process plugins.
request_info.requestor_pid = request.requestorProcessID();
request_info.request_type = FromTargetType(request.targetType());
request_info.appcache_host_id = request.appCacheHostID();
request_info.routing_id = request.requestorID();
request_info.download_to_file = request.downloadToFile();
request_info.has_user_gesture = request.hasUserGesture();
bridge_.reset(ResourceLoaderBridge::Create(request_info));
if (!request.httpBody().isNull()) {
// GET and HEAD requests shouldn't have http bodies.
DCHECK(method != "GET" && method != "HEAD");
const WebHTTPBody& httpBody = request.httpBody();
size_t i = 0;
WebHTTPBody::Element element;
while (httpBody.elementAt(i++, element)) {
switch (element.type) {
case WebHTTPBody::Element::TypeData:
if (!element.data.isEmpty()) {
// WebKit sometimes gives up empty data to append. These aren't
// necessary so we just optimize those out here.
bridge_->AppendDataToUpload(
element.data.data(), static_cast<int>(element.data.size()));
}
break;
case WebHTTPBody::Element::TypeFile:
if (element.fileLength == -1) {
bridge_->AppendFileToUpload(
WebStringToFilePath(element.filePath));
} else {
bridge_->AppendFileRangeToUpload(
WebStringToFilePath(element.filePath),
static_cast<uint64>(element.fileStart),
static_cast<uint64>(element.fileLength),
base::Time::FromDoubleT(element.modificationTime));
}
break;
case WebHTTPBody::Element::TypeBlob:
bridge_->AppendBlobToUpload(GURL(element.blobURL));
break;
default:
NOTREACHED();
}
}
bridge_->SetUploadIdentifier(request.httpBody().identifier());
}
if (sync_load_response) {
bridge_->SyncLoad(sync_load_response);
return;
}
if (bridge_->Start(this)) {
AddRef(); // Balanced in OnCompletedRequest
} else {
bridge_.reset();
}
}
void WebURLLoaderImpl::Context::OnUploadProgress(uint64 position, uint64 size) {
if (client_)
client_->didSendData(loader_, position, size);
}
bool WebURLLoaderImpl::Context::OnReceivedRedirect(
const GURL& new_url,
const ResourceResponseInfo& info,
bool* has_new_first_party_for_cookies,
GURL* new_first_party_for_cookies) {
if (!client_)
return false;
WebURLResponse response;
response.initialize();
PopulateURLResponse(request_.url(), info, &response);
// TODO(darin): We lack sufficient information to construct the actual
// request that resulted from the redirect.
WebURLRequest new_request(new_url);
new_request.setFirstPartyForCookies(request_.firstPartyForCookies());
new_request.setDownloadToFile(request_.downloadToFile());
WebString referrer_string = WebString::fromUTF8("Referer");
WebString referrer = request_.httpHeaderField(referrer_string);
if (!WebSecurityPolicy::shouldHideReferrer(new_url, referrer))
new_request.setHTTPHeaderField(referrer_string, referrer);
if (response.httpStatusCode() == 307)
new_request.setHTTPMethod(request_.httpMethod());
client_->willSendRequest(loader_, new_request, response);
request_ = new_request;
*has_new_first_party_for_cookies = true;
*new_first_party_for_cookies = request_.firstPartyForCookies();
// Only follow the redirect if WebKit left the URL unmodified.
if (new_url == GURL(new_request.url()))
return true;
// We assume that WebKit only changes the URL to suppress a redirect, and we
// assume that it does so by setting it to be invalid.
DCHECK(!new_request.url().isValid());
return false;
}
void WebURLLoaderImpl::Context::OnReceivedResponse(
const ResourceResponseInfo& info) {
if (!client_)
return;
WebURLResponse response;
response.initialize();
PopulateURLResponse(request_.url(), info, &response);
bool show_raw_listing = (GURL(request_.url()).query() == "raw");
if (info.mime_type == "text/vnd.chromium.ftp-dir") {
if (show_raw_listing) {
// Set the MIME type to plain text to prevent any active content.
response.setMIMEType("text/plain");
} else {
// We're going to produce a parsed listing in HTML.
response.setMIMEType("text/html");
}
}
client_->didReceiveResponse(loader_, response);
// We may have been cancelled after didReceiveResponse, which would leave us
// without a client and therefore without much need to do further handling.
if (!client_)
return;
DCHECK(!ftp_listing_delegate_.get());
DCHECK(!multipart_delegate_.get());
if (info.headers && info.mime_type == "multipart/x-mixed-replace") {
std::string content_type;
info.headers->EnumerateHeader(NULL, "content-type", &content_type);
std::string boundary = net::GetHeaderParamValue(
content_type, "boundary", net::QuoteRule::REMOVE_OUTER_QUOTES);
TrimString(boundary, " \"", &boundary);
// If there's no boundary, just handle the request normally. In the gecko
// code, nsMultiMixedConv::OnStartRequest throws an exception.
if (!boundary.empty()) {
multipart_delegate_.reset(
new MultipartResponseDelegate(client_, loader_, response, boundary));
}
} else if (info.mime_type == "text/vnd.chromium.ftp-dir" &&
!show_raw_listing) {
ftp_listing_delegate_.reset(
new FtpDirectoryListingResponseDelegate(client_, loader_, response));
}
response_url_ = response.url();
}
void WebURLLoaderImpl::Context::OnDownloadedData(int len) {
if (client_)
client_->didDownloadData(loader_, len);
}
void WebURLLoaderImpl::Context::OnReceivedData(const char* data,
int data_length,
int encoded_data_length) {
if (!client_)
return;
// Temporary logging, see site_isolation_metrics.h/cc.
SiteIsolationMetrics::SniffCrossOriginHTML(response_url_, data, data_length);
if (ftp_listing_delegate_.get()) {
// The FTP listing delegate will make the appropriate calls to
// client_->didReceiveData and client_->didReceiveResponse.
ftp_listing_delegate_->OnReceivedData(data, data_length);
} else if (multipart_delegate_.get()) {
// The multipart delegate will make the appropriate calls to
// client_->didReceiveData and client_->didReceiveResponse.
multipart_delegate_->OnReceivedData(data, data_length, encoded_data_length);
} else {
client_->didReceiveData(loader_, data, data_length, encoded_data_length);
}
}
void WebURLLoaderImpl::Context::OnReceivedCachedMetadata(
const char* data, int len) {
if (client_)
client_->didReceiveCachedMetadata(loader_, data, len);
}
void WebURLLoaderImpl::Context::OnCompletedRequest(
const net::URLRequestStatus& status,
const std::string& security_info,
const base::Time& completion_time) {
if (ftp_listing_delegate_.get()) {
ftp_listing_delegate_->OnCompletedRequest();
ftp_listing_delegate_.reset(NULL);
} else if (multipart_delegate_.get()) {
multipart_delegate_->OnCompletedRequest();
multipart_delegate_.reset(NULL);
}
// Prevent any further IPC to the browser now that we're complete, but
// don't delete it to keep any downloaded temp files alive.
DCHECK(!completed_bridge_.get());
completed_bridge_.swap(bridge_);
if (client_) {
if (status.status() != net::URLRequestStatus::SUCCESS) {
int error_code;
if (status.status() == net::URLRequestStatus::HANDLED_EXTERNALLY) {
// By marking this request as aborted we insure that we don't navigate
// to an error page.
error_code = net::ERR_ABORTED;
} else {
error_code = status.os_error();
}
WebURLError error;
error.domain = WebString::fromUTF8(net::kErrorDomain);
error.reason = error_code;
error.unreachableURL = request_.url();
client_->didFail(loader_, error);
} else {
client_->didFinishLoading(loader_, completion_time.ToDoubleT());
}
}
// Temporary logging, see site_isolation_metrics.h/cc
SiteIsolationMetrics::RemoveCompletedResponse(response_url_);
// We are done with the bridge now, and so we need to release the reference
// to ourselves that we took on behalf of the bridge. This may cause our
// destruction.
Release();
}
bool WebURLLoaderImpl::Context::CanHandleDataURL(const GURL& url) const {
DCHECK(url.SchemeIs("data"));
// Optimize for the case where we can handle a data URL locally. We must
// skip this for data URLs targetted at frames since those could trigger a
// download.
//
// NOTE: We special case MIME types we can render both for performance
// reasons as well as to support unit tests, which do not have an underlying
// ResourceLoaderBridge implementation.
if (request_.targetType() != WebURLRequest::TargetIsMainFrame &&
request_.targetType() != WebURLRequest::TargetIsSubframe)
return true;
std::string mime_type, unused_charset;
if (net::DataURL::Parse(url, &mime_type, &unused_charset, NULL) &&
net::IsSupportedMimeType(mime_type))
return true;
return false;
}
void WebURLLoaderImpl::Context::HandleDataURL() {
ResourceResponseInfo info;
net::URLRequestStatus status;
std::string data;
if (GetInfoFromDataURL(request_.url(), &info, &data, &status)) {
OnReceivedResponse(info);
if (!data.empty())
OnReceivedData(data.data(), data.size(), 0);
}
OnCompletedRequest(status, info.security_info, base::Time::Now());
}
// WebURLLoaderImpl -----------------------------------------------------------
WebURLLoaderImpl::WebURLLoaderImpl()
: ALLOW_THIS_IN_INITIALIZER_LIST(context_(new Context(this))) {
}
WebURLLoaderImpl::~WebURLLoaderImpl() {
cancel();
}
void WebURLLoaderImpl::loadSynchronously(const WebURLRequest& request,
WebURLResponse& response,
WebURLError& error,
WebData& data) {
ResourceLoaderBridge::SyncLoadResponse sync_load_response;
context_->Start(request, &sync_load_response);
const GURL& final_url = sync_load_response.url;
// TODO(tc): For file loads, we may want to include a more descriptive
// status code or status text.
const net::URLRequestStatus::Status& status =
sync_load_response.status.status();
if (status != net::URLRequestStatus::SUCCESS &&
status != net::URLRequestStatus::HANDLED_EXTERNALLY) {
response.setURL(final_url);
error.domain = WebString::fromUTF8(net::kErrorDomain);
error.reason = sync_load_response.status.os_error();
error.unreachableURL = final_url;
return;
}
PopulateURLResponse(final_url, sync_load_response, &response);
data.assign(sync_load_response.data.data(),
sync_load_response.data.size());
}
void WebURLLoaderImpl::loadAsynchronously(const WebURLRequest& request,
WebURLLoaderClient* client) {
DCHECK(!context_->client());
context_->set_client(client);
context_->Start(request, NULL);
}
void WebURLLoaderImpl::cancel() {
context_->Cancel();
}
void WebURLLoaderImpl::setDefersLoading(bool value) {
context_->SetDefersLoading(value);
}
} // namespace webkit_glue