Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 0 insertions, 372 deletions

diff --git a/WebCore/loader/DocumentThreadableLoader.cpp b/WebCore/loader/DocumentThreadableLoader.cpp
deleted file mode 100644
index dee5001..0000000
--- a/WebCore/loader/DocumentThreadableLoader.cpp
+++ /dev/null
@@ -1,372 +0,0 @@
-/*
- * Copyright (C) 2009 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 "DocumentThreadableLoader.h"
-
-#include "AuthenticationChallenge.h"
-#include "CrossOriginAccessControl.h"
-#include "CrossOriginPreflightResultCache.h"
-#include "Document.h"
-#include "Frame.h"
-#include "FrameLoader.h"
-#include "ResourceHandle.h"
-#include "ResourceLoadScheduler.h"
-#include "ResourceRequest.h"
-#include "SecurityOrigin.h"
-#include "SubresourceLoader.h"
-#include "ThreadableLoaderClient.h"
-#include <wtf/UnusedParam.h>
-
-namespace WebCore {
-
-void DocumentThreadableLoader::loadResourceSynchronously(Document* document, const ResourceRequest& request, ThreadableLoaderClient& client, const ThreadableLoaderOptions& options)
-{
-    // The loader will be deleted as soon as this function exits.
-    RefPtr<DocumentThreadableLoader> loader = adoptRef(new DocumentThreadableLoader(document, &client, LoadSynchronously, request, options));
-    ASSERT(loader->hasOneRef());
-}
-
-PassRefPtr<DocumentThreadableLoader> DocumentThreadableLoader::create(Document* document, ThreadableLoaderClient* client, const ResourceRequest& request, const ThreadableLoaderOptions& options)
-{
-    RefPtr<DocumentThreadableLoader> loader = adoptRef(new DocumentThreadableLoader(document, client, LoadAsynchronously, request, options));
-    if (!loader->m_loader)
-        loader = 0;
-    return loader.release();
-}
-
-DocumentThreadableLoader::DocumentThreadableLoader(Document* document, ThreadableLoaderClient* client, BlockingBehavior blockingBehavior, const ResourceRequest& request, const ThreadableLoaderOptions& options)
-    : m_client(client)
-    , m_document(document)
-    , m_options(options)
-    , m_sameOriginRequest(document->securityOrigin()->canRequest(request.url()))
-    , m_async(blockingBehavior == LoadAsynchronously)
-{
-    ASSERT(document);
-    ASSERT(client);
-
-    if (m_sameOriginRequest || m_options.crossOriginRequestPolicy == AllowCrossOriginRequests) {
-        loadRequest(request, DoSecurityCheck);
-        return;
-    }
-
-    if (m_options.crossOriginRequestPolicy == DenyCrossOriginRequests) {
-        m_client->didFail(ResourceError(errorDomainWebKitInternal, 0, request.url().string(), "Cross origin requests are not supported."));
-        return;
-    }
-    
-    ASSERT(m_options.crossOriginRequestPolicy == UseAccessControl);
-
-    OwnPtr<ResourceRequest> crossOriginRequest = adoptPtr(new ResourceRequest(request));
-    crossOriginRequest->removeCredentials();
-    crossOriginRequest->setAllowCookies(m_options.allowCredentials);
-
-    if (!m_options.forcePreflight && isSimpleCrossOriginAccessRequest(crossOriginRequest->httpMethod(), crossOriginRequest->httpHeaderFields()))
-        makeSimpleCrossOriginAccessRequest(*crossOriginRequest);
-    else {
-        m_actualRequest = crossOriginRequest.release();
-
-        if (CrossOriginPreflightResultCache::shared().canSkipPreflight(document->securityOrigin()->toString(), m_actualRequest->url(), m_options.allowCredentials, m_actualRequest->httpMethod(), m_actualRequest->httpHeaderFields()))
-            preflightSuccess();
-        else
-            makeCrossOriginAccessRequestWithPreflight(*m_actualRequest);
-    }
-}
-
-void DocumentThreadableLoader::makeSimpleCrossOriginAccessRequest(const ResourceRequest& request)
-{
-    ASSERT(isSimpleCrossOriginAccessRequest(request.httpMethod(), request.httpHeaderFields()));
-
-    // Cross-origin requests are only defined for HTTP. We would catch this when checking response headers later, but there is no reason to send a request that's guaranteed to be denied.
-    if (!request.url().protocolInHTTPFamily()) {
-        m_client->didFail(ResourceError(errorDomainWebKitInternal, 0, request.url().string(), "Cross origin requests are only supported for HTTP."));
-        return;
-    }
-
-    // Make a copy of the passed request so that we can modify some details.
-    ResourceRequest crossOriginRequest(request);
-    crossOriginRequest.setHTTPOrigin(m_document->securityOrigin()->toString());
-
-    loadRequest(crossOriginRequest, DoSecurityCheck);
-}
-
-void DocumentThreadableLoader::makeCrossOriginAccessRequestWithPreflight(const ResourceRequest& request)
-{
-    ResourceRequest preflightRequest(request.url());
-    preflightRequest.removeCredentials();
-    preflightRequest.setHTTPOrigin(m_document->securityOrigin()->toString());
-    preflightRequest.setAllowCookies(m_options.allowCredentials);
-    preflightRequest.setHTTPMethod("OPTIONS");
-    preflightRequest.setHTTPHeaderField("Access-Control-Request-Method", request.httpMethod());
-
-    const HTTPHeaderMap& requestHeaderFields = request.httpHeaderFields();
-
-    if (requestHeaderFields.size() > 0) {
-        Vector<UChar> headerBuffer;
-        HTTPHeaderMap::const_iterator it = requestHeaderFields.begin();
-        append(headerBuffer, it->first);
-        ++it;
-
-        HTTPHeaderMap::const_iterator end = requestHeaderFields.end();
-        for (; it != end; ++it) {
-            headerBuffer.append(',');
-            headerBuffer.append(' ');
-            append(headerBuffer, it->first);
-        }
-
-        preflightRequest.setHTTPHeaderField("Access-Control-Request-Headers", String::adopt(headerBuffer));
-    }
-
-    loadRequest(preflightRequest, DoSecurityCheck);
-}
-
-DocumentThreadableLoader::~DocumentThreadableLoader()
-{
-    if (m_loader)
-        m_loader->clearClient();
-}
-
-void DocumentThreadableLoader::cancel()
-{
-    if (!m_loader)
-        return;
-
-    m_loader->cancel();
-    m_loader->clearClient();
-    m_loader = 0;
-    m_client = 0;
-}
-
-void DocumentThreadableLoader::willSendRequest(SubresourceLoader* loader, ResourceRequest& request, const ResourceResponse&)
-{
-    ASSERT(m_client);
-    ASSERT_UNUSED(loader, loader == m_loader);
-
-    if (!isAllowedRedirect(request.url())) {
-        RefPtr<DocumentThreadableLoader> protect(this);
-        m_client->didFailRedirectCheck();
-        request = ResourceRequest();
-    }
-}
-
-void DocumentThreadableLoader::didSendData(SubresourceLoader* loader, unsigned long long bytesSent, unsigned long long totalBytesToBeSent)
-{
-    ASSERT(m_client);
-    ASSERT_UNUSED(loader, loader == m_loader);
-
-    m_client->didSendData(bytesSent, totalBytesToBeSent);
-}
-
-void DocumentThreadableLoader::didReceiveResponse(SubresourceLoader* loader, const ResourceResponse& response)
-{
-    ASSERT(m_client);
-    ASSERT_UNUSED(loader, loader == m_loader);
-
-    String accessControlErrorDescription;
-    if (m_actualRequest) {
-        if (!passesAccessControlCheck(response, m_options.allowCredentials, m_document->securityOrigin(), accessControlErrorDescription)) {
-            preflightFailure(response.url(), accessControlErrorDescription);
-            return;
-        }
-
-        OwnPtr<CrossOriginPreflightResultCacheItem> preflightResult = adoptPtr(new CrossOriginPreflightResultCacheItem(m_options.allowCredentials));
-        if (!preflightResult->parse(response, accessControlErrorDescription)
-            || !preflightResult->allowsCrossOriginMethod(m_actualRequest->httpMethod(), accessControlErrorDescription)
-            || !preflightResult->allowsCrossOriginHeaders(m_actualRequest->httpHeaderFields(), accessControlErrorDescription)) {
-            preflightFailure(response.url(), accessControlErrorDescription);
-            return;
-        }
-
-        CrossOriginPreflightResultCache::shared().appendEntry(m_document->securityOrigin()->toString(), m_actualRequest->url(), preflightResult.release());
-    } else {
-        if (!m_sameOriginRequest && m_options.crossOriginRequestPolicy == UseAccessControl) {
-            if (!passesAccessControlCheck(response, m_options.allowCredentials, m_document->securityOrigin(), accessControlErrorDescription)) {
-                m_client->didFail(ResourceError(errorDomainWebKitInternal, 0, response.url().string(), accessControlErrorDescription));
-                return;
-            }
-        }
-
-        m_client->didReceiveResponse(response);
-    }
-}
-
-void DocumentThreadableLoader::didReceiveData(SubresourceLoader* loader, const char* data, int lengthReceived)
-{
-    ASSERT(m_client);
-    ASSERT_UNUSED(loader, loader == m_loader);
-
-    // Ignore response body of preflight requests.
-    if (m_actualRequest)
-        return;
-
-    m_client->didReceiveData(data, lengthReceived);
-}
-
-void DocumentThreadableLoader::didFinishLoading(SubresourceLoader* loader)
-{
-    ASSERT(loader == m_loader);
-    ASSERT(m_client);
-    didFinishLoading(loader->identifier());
-}
-
-void DocumentThreadableLoader::didFinishLoading(unsigned long identifier)
-{
-    if (m_actualRequest) {
-        ASSERT(!m_sameOriginRequest);
-        ASSERT(m_options.crossOriginRequestPolicy == UseAccessControl);
-        preflightSuccess();
-    } else
-        m_client->didFinishLoading(identifier);
-}
-
-void DocumentThreadableLoader::didFail(SubresourceLoader* loader, const ResourceError& error)
-{
-    ASSERT(m_client);
-    // m_loader may be null if we arrive here via SubresourceLoader::create in the ctor
-    ASSERT_UNUSED(loader, loader == m_loader || !m_loader);
-
-    m_client->didFail(error);
-}
-
-bool DocumentThreadableLoader::getShouldUseCredentialStorage(SubresourceLoader* loader, bool& shouldUseCredentialStorage)
-{
-    ASSERT_UNUSED(loader, loader == m_loader || !m_loader);
-
-    if (!m_options.allowCredentials) {
-        shouldUseCredentialStorage = false;
-        return true;
-    }
-
-    return false; // Only FrameLoaderClient can ultimately permit credential use.
-}
-
-void DocumentThreadableLoader::didReceiveAuthenticationChallenge(SubresourceLoader* loader, const AuthenticationChallenge& challenge)
-{
-    ASSERT(loader == m_loader);
-    // Users are not prompted for credentials for cross-origin requests.
-    if (!m_sameOriginRequest) {
-#if PLATFORM(MAC) || USE(CFNETWORK) || USE(CURL)
-        loader->handle()->receivedRequestToContinueWithoutCredential(challenge);
-#else
-        // These platforms don't provide a way to continue without credentials, cancel the load altogether.
-        UNUSED_PARAM(challenge);
-        RefPtr<DocumentThreadableLoader> protect(this);
-        m_client->didFail(loader->blockedError());
-        cancel();
-#endif
-    }
-}
-
-void DocumentThreadableLoader::receivedCancellation(SubresourceLoader* loader, const AuthenticationChallenge& challenge)
-{
-    ASSERT(m_client);
-    ASSERT_UNUSED(loader, loader == m_loader);
-    m_client->didReceiveAuthenticationCancellation(challenge.failureResponse());
-}
-
-void DocumentThreadableLoader::preflightSuccess()
-{
-    OwnPtr<ResourceRequest> actualRequest;
-    actualRequest.swap(m_actualRequest);
-
-    // It should be ok to skip the security check since we already asked about the preflight request.
-    loadRequest(*actualRequest, SkipSecurityCheck);
-}
-
-void DocumentThreadableLoader::preflightFailure(const String& url, const String& errorDescription)
-{
-    m_actualRequest = 0; // Prevent didFinishLoading() from bypassing access check.
-    m_client->didFail(ResourceError(errorDomainWebKitInternal, 0, url, errorDescription));
-}
-
-void DocumentThreadableLoader::loadRequest(const ResourceRequest& request, SecurityCheckPolicy securityCheck)
-{
-    // Any credential should have been removed from the cross-site requests.
-    const KURL& requestURL = request.url();
-    ASSERT(m_sameOriginRequest || requestURL.user().isEmpty());
-    ASSERT(m_sameOriginRequest || requestURL.pass().isEmpty());
-
-    if (m_async) {
-        // Don't sniff content or send load callbacks for the preflight request.
-        bool sendLoadCallbacks = m_options.sendLoadCallbacks && !m_actualRequest;
-        bool sniffContent = m_options.sniffContent && !m_actualRequest;
-
-        // Clear the loader so that any callbacks from SubresourceLoader::create will not have the old loader.
-        m_loader = 0;
-        m_loader = resourceLoadScheduler()->scheduleSubresourceLoad(m_document->frame(), this, request, ResourceLoadPriorityMedium, securityCheck, sendLoadCallbacks, sniffContent);
-        return;
-    }
-    
-    // FIXME: ThreadableLoaderOptions.sniffContent is not supported for synchronous requests.
-    StoredCredentials storedCredentials = m_options.allowCredentials ? AllowStoredCredentials : DoNotAllowStoredCredentials;
-
-    Vector<char> data;
-    ResourceError error;
-    ResourceResponse response;
-    unsigned long identifier = std::numeric_limits<unsigned long>::max();
-    if (m_document->frame())
-        identifier = m_document->frame()->loader()->loadResourceSynchronously(request, storedCredentials, error, response, data);
-
-    // No exception for file:/// resources, see <rdar://problem/4962298>.
-    // Also, if we have an HTTP response, then it wasn't a network error in fact.
-    if (!error.isNull() && !requestURL.isLocalFile() && response.httpStatusCode() <= 0) {
-        m_client->didFail(error);
-        return;
-    }
-
-    // FIXME: FrameLoader::loadSynchronously() does not tell us whether a redirect happened or not, so we guess by comparing the
-    // request and response URLs. This isn't a perfect test though, since a server can serve a redirect to the same URL that was
-    // requested. Also comparing the request and response URLs as strings will fail if the requestURL still has its credentials.
-    if (requestURL != response.url() && !isAllowedRedirect(response.url())) {
-        m_client->didFailRedirectCheck();
-        return;
-    }
-
-    didReceiveResponse(0, response);
-
-    const char* bytes = static_cast<const char*>(data.data());
-    int len = static_cast<int>(data.size());
-    didReceiveData(0, bytes, len);
-
-    didFinishLoading(identifier);
-}
-
-bool DocumentThreadableLoader::isAllowedRedirect(const KURL& url)
-{
-    if (m_options.crossOriginRequestPolicy == AllowCrossOriginRequests)
-        return true;
-
-    // FIXME: We need to implement access control for each redirect. This will require some refactoring though, because the code
-    // that processes redirects doesn't know about access control and expects a synchronous answer from its client about whether
-    // a redirect should proceed.
-    return m_sameOriginRequest && m_document->securityOrigin()->canRequest(url);
-}
-
-} // namespace WebCore