void DocumentLoader::willSendRequest(ResourceRequest& newRequest, const ResourceResponse& redirectResponse)
{
// Note that there are no asserts here as there are for the other callbacks. This is due to the
// fact that this "callback" is sent when starting every load, and the state of callback
// deferrals plays less of a part in this function in preventing the bad behavior deferring
// callbacks is meant to prevent.
ASSERT(!newRequest.isNull());
if (!frameLoader()->checkIfFormActionAllowedByCSP(newRequest.url())) {
cancelMainResourceLoad(frameLoader()->cancelledError(newRequest));
return;
}
ASSERT(timing()->fetchStart());
if (!redirectResponse.isNull()) {
// If the redirecting url is not allowed to display content from the target origin,
// then block the redirect.
RefPtr<SecurityOrigin> redirectingOrigin = SecurityOrigin::create(redirectResponse.url());
if (!redirectingOrigin->canDisplay(newRequest.url())) {
FrameLoader::reportLocalLoadFailed(m_frame, newRequest.url().string());
cancelMainResourceLoad(frameLoader()->cancelledError(newRequest));
return;
}
timing()->addRedirect(redirectResponse.url(), newRequest.url());
}
// Update cookie policy base URL as URL changes, except for subframes, which use the
// URL of the main frame which doesn't change when we redirect.
if (frameLoader()->isLoadingMainFrame())
newRequest.setFirstPartyForCookies(newRequest.url());
// If we're fielding a redirect in response to a POST, force a load from origin, since
// this is a common site technique to return to a page viewing some data that the POST
// just modified.
// Also, POST requests always load from origin, but this does not affect subresources.
if (newRequest.cachePolicy() == UseProtocolCachePolicy && isPostOrRedirectAfterPost(newRequest, redirectResponse))
newRequest.setCachePolicy(ReloadIgnoringCacheData);
Frame* top = m_frame->tree()->top();
if (top) {
if (!top->loader()->mixedContentChecker()->canDisplayInsecureContent(top->document()->securityOrigin(), newRequest.url())) {
cancelMainResourceLoad(frameLoader()->cancelledError(newRequest));
return;
}
}
setRequest(newRequest);
if (redirectResponse.isNull())
return;
frameLoader()->client()->dispatchDidReceiveServerRedirectForProvisionalLoad();
if (!shouldContinueForNavigationPolicy(newRequest))
stopLoadingForPolicyChange();
}
void DocumentLoader::willSendRequest(ResourceRequest& newRequest, const ResourceResponse& redirectResponse)
{
// Note that there are no asserts here as there are for the other callbacks. This is due to the
// fact that this "callback" is sent when starting every load, and the state of callback
// deferrals plays less of a part in this function in preventing the bad behavior deferring
// callbacks is meant to prevent.
ASSERT(!newRequest.isNull());
if (isFormSubmission(m_triggeringAction.type()) && !m_frame->document()->contentSecurityPolicy()->allowFormAction(newRequest.url())) {
cancelMainResourceLoad(ResourceError::cancelledError(newRequest.url()));
return;
}
ASSERT(timing()->fetchStart());
if (!redirectResponse.isNull()) {
// If the redirecting url is not allowed to display content from the target origin,
// then block the redirect.
RefPtr<SecurityOrigin> redirectingOrigin = SecurityOrigin::create(redirectResponse.url());
if (!redirectingOrigin->canDisplay(newRequest.url())) {
FrameLoader::reportLocalLoadFailed(m_frame, newRequest.url().string());
cancelMainResourceLoad(ResourceError::cancelledError(newRequest.url()));
return;
}
timing()->addRedirect(redirectResponse.url(), newRequest.url());
}
// If we're fielding a redirect in response to a POST, force a load from origin, since
// this is a common site technique to return to a page viewing some data that the POST
// just modified.
if (newRequest.cachePolicy() == UseProtocolCachePolicy && isRedirectAfterPost(newRequest, redirectResponse))
newRequest.setCachePolicy(ReloadBypassingCache);
// If this is a sub-frame, check for mixed content blocking against the top frame.
if (m_frame->tree().parent()) {
// FIXME: This does not yet work with out-of-process iframes.
Frame* top = m_frame->tree().top();
if (top->isLocalFrame() && !toLocalFrame(top)->loader().mixedContentChecker()->canRunInsecureContent(toLocalFrame(top)->document()->securityOrigin(), newRequest.url())) {
cancelMainResourceLoad(ResourceError::cancelledError(newRequest.url()));
return;
}
}
m_request = newRequest;
if (redirectResponse.isNull())
return;
appendRedirect(newRequest.url());
frameLoader()->client()->dispatchDidReceiveServerRedirectForProvisionalLoad();
if (!shouldContinueForNavigationPolicy(newRequest))
cancelMainResourceLoad(ResourceError::cancelledError(m_request.url()));
}