| // Copyright 2015 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 "content/browser/frame_host/navigation_handle_impl.h" |
| |
| #include <iterator> |
| |
| #include "base/logging.h" |
| #include "content/browser/appcache/appcache_navigation_handle.h" |
| #include "content/browser/appcache/appcache_service_impl.h" |
| #include "content/browser/browsing_data/clear_site_data_throttle.h" |
| #include "content/browser/child_process_security_policy_impl.h" |
| #include "content/browser/devtools/render_frame_devtools_agent_host.h" |
| #include "content/browser/frame_host/ancestor_throttle.h" |
| #include "content/browser/frame_host/debug_urls.h" |
| #include "content/browser/frame_host/frame_tree_node.h" |
| #include "content/browser/frame_host/mixed_content_navigation_throttle.h" |
| #include "content/browser/frame_host/navigation_controller_impl.h" |
| #include "content/browser/frame_host/navigation_entry_impl.h" |
| #include "content/browser/frame_host/navigator.h" |
| #include "content/browser/frame_host/navigator_delegate.h" |
| #include "content/browser/loader/resource_dispatcher_host_impl.h" |
| #include "content/browser/service_worker/service_worker_context_wrapper.h" |
| #include "content/browser/service_worker/service_worker_navigation_handle.h" |
| #include "content/common/frame_messages.h" |
| #include "content/common/resource_request_body_impl.h" |
| #include "content/common/site_isolation_policy.h" |
| #include "content/public/browser/content_browser_client.h" |
| #include "content/public/browser/navigation_ui_data.h" |
| #include "content/public/browser/site_instance.h" |
| #include "content/public/common/browser_side_navigation_policy.h" |
| #include "content/public/common/content_client.h" |
| #include "content/public/common/url_constants.h" |
| #include "net/base/net_errors.h" |
| #include "net/url_request/redirect_info.h" |
| #include "url/gurl.h" |
| #include "url/url_constants.h" |
| |
| namespace content { |
| |
| namespace { |
| |
| void UpdateThrottleCheckResult( |
| NavigationThrottle::ThrottleCheckResult* to_update, |
| NavigationThrottle::ThrottleCheckResult result) { |
| *to_update = result; |
| } |
| |
| void NotifyAbandonedTransferNavigation(const GlobalRequestID& id) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| if (ResourceDispatcherHostImpl* rdh = ResourceDispatcherHostImpl::Get()) |
| rdh->CancelRequest(id.child_id, id.request_id); |
| } |
| |
| } // namespace |
| |
| // static |
| std::unique_ptr<NavigationHandleImpl> NavigationHandleImpl::Create( |
| const GURL& url, |
| const std::vector<GURL>& redirect_chain, |
| FrameTreeNode* frame_tree_node, |
| bool is_renderer_initiated, |
| bool is_same_page, |
| const base::TimeTicks& navigation_start, |
| int pending_nav_entry_id, |
| bool started_from_context_menu) { |
| return std::unique_ptr<NavigationHandleImpl>(new NavigationHandleImpl( |
| url, redirect_chain, frame_tree_node, is_renderer_initiated, is_same_page, |
| navigation_start, pending_nav_entry_id, |
| started_from_context_menu)); |
| } |
| |
| NavigationHandleImpl::NavigationHandleImpl( |
| const GURL& url, |
| const std::vector<GURL>& redirect_chain, |
| FrameTreeNode* frame_tree_node, |
| bool is_renderer_initiated, |
| bool is_same_page, |
| const base::TimeTicks& navigation_start, |
| int pending_nav_entry_id, |
| bool started_from_context_menu) |
| : url_(url), |
| has_user_gesture_(false), |
| transition_(ui::PAGE_TRANSITION_LINK), |
| is_external_protocol_(false), |
| net_error_code_(net::OK), |
| render_frame_host_(nullptr), |
| is_renderer_initiated_(is_renderer_initiated), |
| is_same_page_(is_same_page), |
| was_redirected_(false), |
| did_replace_entry_(false), |
| should_update_history_(false), |
| connection_info_(net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN), |
| original_url_(url), |
| state_(INITIAL), |
| is_transferring_(false), |
| frame_tree_node_(frame_tree_node), |
| next_index_(0), |
| navigation_start_(navigation_start), |
| pending_nav_entry_id_(pending_nav_entry_id), |
| request_context_type_(REQUEST_CONTEXT_TYPE_UNSPECIFIED), |
| mixed_content_context_type_(blink::WebMixedContentContextType::Blockable), |
| should_replace_current_entry_(false), |
| redirect_chain_(redirect_chain), |
| is_download_(false), |
| is_stream_(false), |
| started_from_context_menu_(started_from_context_menu), |
| reload_type_(ReloadType::NONE), |
| restore_type_(RestoreType::NONE), |
| navigation_type_(NAVIGATION_TYPE_UNKNOWN), |
| weak_factory_(this) { |
| DCHECK(!navigation_start.is_null()); |
| if (redirect_chain_.empty()) |
| redirect_chain_.push_back(url); |
| |
| starting_site_instance_ = |
| frame_tree_node_->current_frame_host()->GetSiteInstance(); |
| |
| if (pending_nav_entry_id_) { |
| NavigationControllerImpl* nav_controller = |
| static_cast<NavigationControllerImpl*>( |
| frame_tree_node_->navigator()->GetController()); |
| NavigationEntryImpl* nav_entry = |
| nav_controller->GetEntryWithUniqueID(pending_nav_entry_id_); |
| if (!nav_entry && |
| nav_controller->GetPendingEntry() && |
| nav_controller->GetPendingEntry()->GetUniqueID() == |
| pending_nav_entry_id_) { |
| nav_entry = nav_controller->GetPendingEntry(); |
| } |
| |
| if (nav_entry) { |
| reload_type_ = nav_entry->reload_type(); |
| restore_type_ = nav_entry->restore_type(); |
| } |
| } |
| |
| if (!IsRendererDebugURL(url_)) |
| GetDelegate()->DidStartNavigation(this); |
| |
| if (IsInMainFrame()) { |
| TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP1( |
| "navigation", "Navigation StartToCommit", this, |
| navigation_start, "Initial URL", url_.spec()); |
| } |
| } |
| |
| NavigationHandleImpl::~NavigationHandleImpl() { |
| // Transfer requests that have not matched up with another navigation request |
| // from the renderer need to be cleaned up. These are marked as protected in |
| // the RDHI, so they do not get cancelled when frames are destroyed. |
| if (is_transferring()) { |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&NotifyAbandonedTransferNavigation, GetGlobalRequestID())); |
| } |
| |
| if (!IsRendererDebugURL(url_)) |
| GetDelegate()->DidFinishNavigation(this); |
| |
| // Cancel the navigation on the IO thread if the NavigationHandle is being |
| // destroyed in the middle of the NavigationThrottles checks. |
| if (!IsBrowserSideNavigationEnabled() && !complete_callback_.is_null()) |
| RunCompleteCallback(NavigationThrottle::CANCEL_AND_IGNORE); |
| |
| if (IsInMainFrame()) { |
| TRACE_EVENT_ASYNC_END2("navigation", "Navigation StartToCommit", this, |
| "URL", url_.spec(), "Net Error Code", |
| net_error_code_); |
| } |
| } |
| |
| NavigatorDelegate* NavigationHandleImpl::GetDelegate() const { |
| return frame_tree_node_->navigator()->GetDelegate(); |
| } |
| |
| const GURL& NavigationHandleImpl::GetURL() { |
| return url_; |
| } |
| |
| SiteInstance* NavigationHandleImpl::GetStartingSiteInstance() { |
| return starting_site_instance_.get(); |
| } |
| |
| bool NavigationHandleImpl::IsInMainFrame() { |
| return frame_tree_node_->IsMainFrame(); |
| } |
| |
| bool NavigationHandleImpl::IsParentMainFrame() { |
| if (frame_tree_node_->parent()) |
| return frame_tree_node_->parent()->IsMainFrame(); |
| |
| return false; |
| } |
| |
| bool NavigationHandleImpl::IsRendererInitiated() { |
| return is_renderer_initiated_; |
| } |
| |
| bool NavigationHandleImpl::WasServerRedirect() { |
| return was_redirected_; |
| } |
| |
| const std::vector<GURL>& NavigationHandleImpl::GetRedirectChain() { |
| return redirect_chain_; |
| } |
| |
| int NavigationHandleImpl::GetFrameTreeNodeId() { |
| return frame_tree_node_->frame_tree_node_id(); |
| } |
| |
| int NavigationHandleImpl::GetParentFrameTreeNodeId() { |
| if (frame_tree_node_->IsMainFrame()) |
| return FrameTreeNode::kFrameTreeNodeInvalidId; |
| |
| return frame_tree_node_->parent()->frame_tree_node_id(); |
| } |
| |
| const base::TimeTicks& NavigationHandleImpl::NavigationStart() { |
| return navigation_start_; |
| } |
| |
| bool NavigationHandleImpl::IsPost() { |
| CHECK_NE(INITIAL, state_) |
| << "This accessor should not be called before the request is started."; |
| return method_ == "POST"; |
| } |
| |
| const Referrer& NavigationHandleImpl::GetReferrer() { |
| CHECK_NE(INITIAL, state_) |
| << "This accessor should not be called before the request is started."; |
| return sanitized_referrer_; |
| } |
| |
| bool NavigationHandleImpl::HasUserGesture() { |
| CHECK_NE(INITIAL, state_) |
| << "This accessor should not be called before the request is started."; |
| return has_user_gesture_; |
| } |
| |
| ui::PageTransition NavigationHandleImpl::GetPageTransition() { |
| CHECK_NE(INITIAL, state_) |
| << "This accessor should not be called before the request is started."; |
| return transition_; |
| } |
| |
| bool NavigationHandleImpl::IsExternalProtocol() { |
| CHECK_NE(INITIAL, state_) |
| << "This accessor should not be called before the request is started."; |
| return is_external_protocol_; |
| } |
| |
| net::Error NavigationHandleImpl::GetNetErrorCode() { |
| return net_error_code_; |
| } |
| |
| RenderFrameHostImpl* NavigationHandleImpl::GetRenderFrameHost() { |
| // TODO(mkwst): Change this to check against 'READY_TO_COMMIT' once |
| // ReadyToCommitNavigation is available whether or not PlzNavigate is |
| // enabled. https://crbug.com/621856 |
| CHECK_GE(state_, WILL_PROCESS_RESPONSE) |
| << "This accessor should only be called after a response has been " |
| "delivered for processing."; |
| return render_frame_host_; |
| } |
| |
| bool NavigationHandleImpl::IsSameDocument() { |
| return is_same_page_; |
| } |
| |
| const net::HttpResponseHeaders* NavigationHandleImpl::GetResponseHeaders() { |
| return response_headers_.get(); |
| } |
| |
| net::HttpResponseInfo::ConnectionInfo |
| NavigationHandleImpl::GetConnectionInfo() { |
| return connection_info_; |
| } |
| |
| bool NavigationHandleImpl::HasCommitted() { |
| return state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE; |
| } |
| |
| bool NavigationHandleImpl::IsErrorPage() { |
| return state_ == DID_COMMIT_ERROR_PAGE; |
| } |
| |
| bool NavigationHandleImpl::DidReplaceEntry() { |
| DCHECK(state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE); |
| return did_replace_entry_; |
| } |
| |
| bool NavigationHandleImpl::ShouldUpdateHistory() { |
| DCHECK(state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE); |
| return should_update_history_; |
| } |
| |
| const GURL& NavigationHandleImpl::GetPreviousURL() { |
| DCHECK(state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE); |
| return previous_url_; |
| } |
| |
| net::HostPortPair NavigationHandleImpl::GetSocketAddress() { |
| DCHECK(state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE); |
| return socket_address_; |
| } |
| |
| void NavigationHandleImpl::Resume() { |
| if (state_ != DEFERRING_START && state_ != DEFERRING_REDIRECT && |
| state_ != DEFERRING_RESPONSE) { |
| return; |
| } |
| |
| NavigationThrottle::ThrottleCheckResult result = NavigationThrottle::DEFER; |
| if (state_ == DEFERRING_START) { |
| result = CheckWillStartRequest(); |
| } else if (state_ == DEFERRING_REDIRECT) { |
| result = CheckWillRedirectRequest(); |
| } else { |
| result = CheckWillProcessResponse(); |
| |
| // If the navigation is about to proceed after having been deferred while |
| // processing the response, then it's ready to commit. Determine which |
| // RenderFrameHost should render the response, based on its site (after any |
| // redirects). |
| // Note: if MaybeTransferAndProceed returns false, this means that this |
| // NavigationHandle was deleted, so return immediately. |
| if (result == NavigationThrottle::PROCEED && !MaybeTransferAndProceed()) |
| return; |
| } |
| |
| if (result != NavigationThrottle::DEFER) |
| RunCompleteCallback(result); |
| } |
| |
| void NavigationHandleImpl::CancelDeferredNavigation( |
| NavigationThrottle::ThrottleCheckResult result) { |
| DCHECK(state_ == DEFERRING_START || |
| state_ == DEFERRING_REDIRECT || |
| state_ == DEFERRING_RESPONSE); |
| DCHECK(result == NavigationThrottle::CANCEL_AND_IGNORE || |
| result == NavigationThrottle::CANCEL); |
| state_ = CANCELING; |
| RunCompleteCallback(result); |
| } |
| |
| void NavigationHandleImpl::RegisterThrottleForTesting( |
| std::unique_ptr<NavigationThrottle> navigation_throttle) { |
| throttles_.push_back(std::move(navigation_throttle)); |
| } |
| |
| NavigationThrottle::ThrottleCheckResult |
| NavigationHandleImpl::CallWillStartRequestForTesting( |
| bool is_post, |
| const Referrer& sanitized_referrer, |
| bool has_user_gesture, |
| ui::PageTransition transition, |
| bool is_external_protocol) { |
| NavigationThrottle::ThrottleCheckResult result = NavigationThrottle::DEFER; |
| |
| scoped_refptr<ResourceRequestBodyImpl> resource_request_body; |
| std::string method = "GET"; |
| if (is_post) { |
| method = "POST"; |
| |
| std::string body = "test=body"; |
| resource_request_body = new ResourceRequestBodyImpl(); |
| resource_request_body->AppendBytes(body.data(), body.size()); |
| } |
| |
| WillStartRequest(method, resource_request_body, sanitized_referrer, |
| has_user_gesture, transition, is_external_protocol, |
| REQUEST_CONTEXT_TYPE_LOCATION, |
| blink::WebMixedContentContextType::Blockable, |
| base::Bind(&UpdateThrottleCheckResult, &result)); |
| |
| // Reset the callback to ensure it will not be called later. |
| complete_callback_.Reset(); |
| return result; |
| } |
| |
| NavigationThrottle::ThrottleCheckResult |
| NavigationHandleImpl::CallWillRedirectRequestForTesting( |
| const GURL& new_url, |
| bool new_method_is_post, |
| const GURL& new_referrer_url, |
| bool new_is_external_protocol) { |
| NavigationThrottle::ThrottleCheckResult result = NavigationThrottle::DEFER; |
| WillRedirectRequest(new_url, new_method_is_post ? "POST" : "GET", |
| new_referrer_url, new_is_external_protocol, |
| scoped_refptr<net::HttpResponseHeaders>(), |
| net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN, |
| base::Bind(&UpdateThrottleCheckResult, &result)); |
| |
| // Reset the callback to ensure it will not be called later. |
| complete_callback_.Reset(); |
| return result; |
| } |
| |
| NavigationThrottle::ThrottleCheckResult |
| NavigationHandleImpl::CallWillProcessResponseForTesting( |
| content::RenderFrameHost* render_frame_host, |
| const std::string& raw_response_headers) { |
| scoped_refptr<net::HttpResponseHeaders> headers = |
| new net::HttpResponseHeaders(raw_response_headers); |
| NavigationThrottle::ThrottleCheckResult result = NavigationThrottle::DEFER; |
| WillProcessResponse(static_cast<RenderFrameHostImpl*>(render_frame_host), |
| headers, net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN, |
| SSLStatus(), GlobalRequestID(), false, false, false, |
| base::Closure(), |
| base::Bind(&UpdateThrottleCheckResult, &result)); |
| |
| // Reset the callback to ensure it will not be called later. |
| complete_callback_.Reset(); |
| return result; |
| } |
| |
| void NavigationHandleImpl::CallDidCommitNavigationForTesting(const GURL& url) { |
| FrameHostMsg_DidCommitProvisionalLoad_Params params; |
| |
| params.nav_entry_id = 1; |
| params.url = url; |
| params.referrer = content::Referrer(); |
| params.transition = ui::PAGE_TRANSITION_TYPED; |
| params.redirects = std::vector<GURL>(); |
| params.should_update_history = false; |
| params.searchable_form_url = GURL(); |
| params.searchable_form_encoding = std::string(); |
| params.did_create_new_entry = false; |
| params.gesture = NavigationGestureUser; |
| params.was_within_same_page = false; |
| params.method = "GET"; |
| params.page_state = PageState::CreateFromURL(url); |
| params.contents_mime_type = std::string("text/html"); |
| |
| DidCommitNavigation(params, false, GURL(), NAVIGATION_TYPE_NEW_PAGE, |
| render_frame_host_); |
| } |
| |
| bool NavigationHandleImpl::WasStartedFromContextMenu() const { |
| return started_from_context_menu_; |
| } |
| |
| const GURL& NavigationHandleImpl::GetSearchableFormURL() { |
| return searchable_form_url_; |
| } |
| |
| const std::string& NavigationHandleImpl::GetSearchableFormEncoding() { |
| return searchable_form_encoding_; |
| } |
| |
| ReloadType NavigationHandleImpl::GetReloadType() { |
| return reload_type_; |
| } |
| |
| RestoreType NavigationHandleImpl::GetRestoreType() { |
| return restore_type_; |
| } |
| |
| NavigationData* NavigationHandleImpl::GetNavigationData() { |
| return navigation_data_.get(); |
| } |
| |
| const GlobalRequestID& NavigationHandleImpl::GetGlobalRequestID() { |
| DCHECK(state_ == WILL_PROCESS_RESPONSE || state_ == DEFERRING_RESPONSE || |
| state_ == READY_TO_COMMIT); |
| return request_id_; |
| } |
| |
| void NavigationHandleImpl::InitServiceWorkerHandle( |
| ServiceWorkerContextWrapper* service_worker_context) { |
| DCHECK(IsBrowserSideNavigationEnabled()); |
| service_worker_handle_.reset( |
| new ServiceWorkerNavigationHandle(service_worker_context)); |
| } |
| |
| void NavigationHandleImpl::InitAppCacheHandle( |
| ChromeAppCacheService* appcache_service) { |
| DCHECK(IsBrowserSideNavigationEnabled()); |
| appcache_handle_.reset(new AppCacheNavigationHandle(appcache_service)); |
| } |
| |
| void NavigationHandleImpl::WillStartRequest( |
| const std::string& method, |
| scoped_refptr<content::ResourceRequestBodyImpl> resource_request_body, |
| const Referrer& sanitized_referrer, |
| bool has_user_gesture, |
| ui::PageTransition transition, |
| bool is_external_protocol, |
| RequestContextType request_context_type, |
| blink::WebMixedContentContextType mixed_content_context_type, |
| const ThrottleChecksFinishedCallback& callback) { |
| if (method != "POST") |
| DCHECK(!resource_request_body); |
| |
| // Update the navigation parameters. |
| method_ = method; |
| if (method_ == "POST") |
| resource_request_body_ = resource_request_body; |
| has_user_gesture_ = has_user_gesture; |
| transition_ = transition; |
| // Mirrors the logic in RenderFrameImpl::SendDidCommitProvisionalLoad. |
| if (transition_ & ui::PAGE_TRANSITION_CLIENT_REDIRECT) { |
| // If the page contained a client redirect (meta refresh, |
| // document.location), set the referrer appropriately. |
| sanitized_referrer_ = |
| Referrer(redirect_chain_[0], sanitized_referrer.policy); |
| } else { |
| sanitized_referrer_ = sanitized_referrer; |
| } |
| is_external_protocol_ = is_external_protocol; |
| request_context_type_ = request_context_type; |
| mixed_content_context_type_ = mixed_content_context_type; |
| state_ = WILL_SEND_REQUEST; |
| complete_callback_ = callback; |
| |
| if (IsSelfReferentialURL()) { |
| state_ = CANCELING; |
| RunCompleteCallback(NavigationThrottle::CANCEL); |
| return; |
| } |
| |
| RegisterNavigationThrottles(); |
| |
| if (IsBrowserSideNavigationEnabled()) |
| navigation_ui_data_ = GetDelegate()->GetNavigationUIData(this); |
| |
| // Notify each throttle of the request. |
| NavigationThrottle::ThrottleCheckResult result = CheckWillStartRequest(); |
| |
| // If the navigation is not deferred, run the callback. |
| if (result != NavigationThrottle::DEFER) |
| RunCompleteCallback(result); |
| } |
| |
| void NavigationHandleImpl::WillRedirectRequest( |
| const GURL& new_url, |
| const std::string& new_method, |
| const GURL& new_referrer_url, |
| bool new_is_external_protocol, |
| scoped_refptr<net::HttpResponseHeaders> response_headers, |
| net::HttpResponseInfo::ConnectionInfo connection_info, |
| const ThrottleChecksFinishedCallback& callback) { |
| // Update the navigation parameters. |
| url_ = new_url; |
| method_ = new_method; |
| |
| if (!(transition_ & ui::PAGE_TRANSITION_CLIENT_REDIRECT)) { |
| sanitized_referrer_.url = new_referrer_url; |
| sanitized_referrer_ = |
| Referrer::SanitizeForRequest(url_, sanitized_referrer_); |
| } |
| |
| is_external_protocol_ = new_is_external_protocol; |
| response_headers_ = response_headers; |
| connection_info_ = connection_info; |
| was_redirected_ = true; |
| redirect_chain_.push_back(new_url); |
| if (new_method != "POST") |
| resource_request_body_ = nullptr; |
| |
| state_ = WILL_REDIRECT_REQUEST; |
| complete_callback_ = callback; |
| |
| if (IsSelfReferentialURL()) { |
| state_ = CANCELING; |
| RunCompleteCallback(NavigationThrottle::CANCEL); |
| return; |
| } |
| |
| // Notify each throttle of the request. |
| NavigationThrottle::ThrottleCheckResult result = CheckWillRedirectRequest(); |
| |
| // If the navigation is not deferred, run the callback. |
| if (result != NavigationThrottle::DEFER) |
| RunCompleteCallback(result); |
| } |
| |
| void NavigationHandleImpl::WillProcessResponse( |
| RenderFrameHostImpl* render_frame_host, |
| scoped_refptr<net::HttpResponseHeaders> response_headers, |
| net::HttpResponseInfo::ConnectionInfo connection_info, |
| const SSLStatus& ssl_status, |
| const GlobalRequestID& request_id, |
| bool should_replace_current_entry, |
| bool is_download, |
| bool is_stream, |
| const base::Closure& transfer_callback, |
| const ThrottleChecksFinishedCallback& callback) { |
| DCHECK(!render_frame_host_ || render_frame_host_ == render_frame_host); |
| render_frame_host_ = render_frame_host; |
| response_headers_ = response_headers; |
| connection_info_ = connection_info; |
| request_id_ = request_id; |
| should_replace_current_entry_ = should_replace_current_entry; |
| is_download_ = is_download; |
| is_stream_ = is_stream; |
| state_ = WILL_PROCESS_RESPONSE; |
| ssl_status_ = ssl_status; |
| complete_callback_ = callback; |
| transfer_callback_ = transfer_callback; |
| |
| // Notify each throttle of the response. |
| NavigationThrottle::ThrottleCheckResult result = CheckWillProcessResponse(); |
| |
| // If the navigation is done processing the response, then it's ready to |
| // commit. Determine which RenderFrameHost should render the response, based |
| // on its site (after any redirects). |
| // Note: if MaybeTransferAndProceed returns false, this means that this |
| // NavigationHandle was deleted, so return immediately. |
| if (result == NavigationThrottle::PROCEED && !MaybeTransferAndProceed()) |
| return; |
| |
| // If the navigation is not deferred, run the callback. |
| if (result != NavigationThrottle::DEFER) |
| RunCompleteCallback(result); |
| } |
| |
| void NavigationHandleImpl::ReadyToCommitNavigation( |
| RenderFrameHostImpl* render_frame_host) { |
| DCHECK(!render_frame_host_ || render_frame_host_ == render_frame_host); |
| render_frame_host_ = render_frame_host; |
| state_ = READY_TO_COMMIT; |
| |
| if (!IsRendererDebugURL(url_) && !IsSameDocument()) |
| GetDelegate()->ReadyToCommitNavigation(this); |
| } |
| |
| void NavigationHandleImpl::DidCommitNavigation( |
| const FrameHostMsg_DidCommitProvisionalLoad_Params& params, |
| bool did_replace_entry, |
| const GURL& previous_url, |
| NavigationType navigation_type, |
| RenderFrameHostImpl* render_frame_host) { |
| DCHECK(!render_frame_host_ || render_frame_host_ == render_frame_host); |
| DCHECK_EQ(frame_tree_node_, render_frame_host->frame_tree_node()); |
| CHECK_EQ(url_, params.url); |
| |
| did_replace_entry_ = did_replace_entry; |
| method_ = params.method; |
| has_user_gesture_ = (params.gesture == NavigationGestureUser); |
| transition_ = params.transition; |
| should_update_history_ = params.should_update_history; |
| render_frame_host_ = render_frame_host; |
| previous_url_ = previous_url; |
| base_url_ = params.base_url; |
| socket_address_ = params.socket_address; |
| navigation_type_ = navigation_type; |
| |
| // If an error page reloads, net_error_code might be 200 but we still want to |
| // count it as an error page. |
| if (params.base_url.spec() == kUnreachableWebDataURL || |
| net_error_code_ != net::OK) { |
| state_ = DID_COMMIT_ERROR_PAGE; |
| } else { |
| state_ = DID_COMMIT; |
| } |
| |
| if (url_.SchemeIs(url::kDataScheme) && IsInMainFrame() && |
| IsRendererInitiated()) { |
| GetRenderFrameHost()->AddMessageToConsole( |
| CONSOLE_MESSAGE_LEVEL_WARNING, |
| "Upcoming versions will block content-initiated top frame navigations " |
| "to data: URLs. For more information, see https://goo.gl/BaZAea."); |
| } |
| } |
| |
| void NavigationHandleImpl::Transfer() { |
| DCHECK(!IsBrowserSideNavigationEnabled()); |
| // This is an actual transfer. Inform the NavigationResourceThrottle. This |
| // will allow to mark the URLRequest as transferring. When it is marked as |
| // transferring, the URLRequest can no longer be cancelled by its original |
| // RenderFrame. Instead it will persist until being picked up by the transfer |
| // RenderFrame, even if the original RenderFrame is destroyed. |
| // Note: |transfer_callback_| can be null in unit tests. |
| if (!transfer_callback_.is_null()) |
| BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, transfer_callback_); |
| transfer_callback_.Reset(); |
| } |
| |
| NavigationThrottle::ThrottleCheckResult |
| NavigationHandleImpl::CheckWillStartRequest() { |
| DCHECK(state_ == WILL_SEND_REQUEST || state_ == DEFERRING_START); |
| DCHECK(state_ != WILL_SEND_REQUEST || next_index_ == 0); |
| DCHECK(state_ != DEFERRING_START || next_index_ != 0); |
| for (size_t i = next_index_; i < throttles_.size(); ++i) { |
| NavigationThrottle::ThrottleCheckResult result = |
| throttles_[i]->WillStartRequest(); |
| switch (result) { |
| case NavigationThrottle::PROCEED: |
| continue; |
| |
| case NavigationThrottle::CANCEL: |
| case NavigationThrottle::CANCEL_AND_IGNORE: |
| case NavigationThrottle::BLOCK_REQUEST: |
| state_ = CANCELING; |
| return result; |
| |
| case NavigationThrottle::DEFER: |
| state_ = DEFERRING_START; |
| next_index_ = i + 1; |
| return result; |
| |
| case NavigationThrottle::BLOCK_RESPONSE: |
| NOTREACHED(); |
| } |
| } |
| next_index_ = 0; |
| state_ = WILL_SEND_REQUEST; |
| return NavigationThrottle::PROCEED; |
| } |
| |
| NavigationThrottle::ThrottleCheckResult |
| NavigationHandleImpl::CheckWillRedirectRequest() { |
| DCHECK(state_ == WILL_REDIRECT_REQUEST || state_ == DEFERRING_REDIRECT); |
| DCHECK(state_ != WILL_REDIRECT_REQUEST || next_index_ == 0); |
| DCHECK(state_ != DEFERRING_REDIRECT || next_index_ != 0); |
| for (size_t i = next_index_; i < throttles_.size(); ++i) { |
| NavigationThrottle::ThrottleCheckResult result = |
| throttles_[i]->WillRedirectRequest(); |
| switch (result) { |
| case NavigationThrottle::PROCEED: |
| continue; |
| |
| case NavigationThrottle::CANCEL: |
| case NavigationThrottle::CANCEL_AND_IGNORE: |
| state_ = CANCELING; |
| return result; |
| |
| case NavigationThrottle::DEFER: |
| state_ = DEFERRING_REDIRECT; |
| next_index_ = i + 1; |
| return result; |
| |
| case NavigationThrottle::BLOCK_REQUEST: |
| case NavigationThrottle::BLOCK_RESPONSE: |
| NOTREACHED(); |
| } |
| } |
| next_index_ = 0; |
| state_ = WILL_REDIRECT_REQUEST; |
| |
| // Notify the delegate that a redirect was encountered and will be followed. |
| if (GetDelegate()) |
| GetDelegate()->DidRedirectNavigation(this); |
| |
| return NavigationThrottle::PROCEED; |
| } |
| |
| NavigationThrottle::ThrottleCheckResult |
| NavigationHandleImpl::CheckWillProcessResponse() { |
| DCHECK(state_ == WILL_PROCESS_RESPONSE || state_ == DEFERRING_RESPONSE); |
| DCHECK(state_ != WILL_PROCESS_RESPONSE || next_index_ == 0); |
| DCHECK(state_ != DEFERRING_RESPONSE || next_index_ != 0); |
| for (size_t i = next_index_; i < throttles_.size(); ++i) { |
| NavigationThrottle::ThrottleCheckResult result = |
| throttles_[i]->WillProcessResponse(); |
| switch (result) { |
| case NavigationThrottle::PROCEED: |
| continue; |
| |
| case NavigationThrottle::CANCEL: |
| case NavigationThrottle::CANCEL_AND_IGNORE: |
| case NavigationThrottle::BLOCK_RESPONSE: |
| state_ = CANCELING; |
| return result; |
| |
| case NavigationThrottle::DEFER: |
| state_ = DEFERRING_RESPONSE; |
| next_index_ = i + 1; |
| return result; |
| |
| case NavigationThrottle::BLOCK_REQUEST: |
| NOTREACHED(); |
| } |
| } |
| next_index_ = 0; |
| state_ = WILL_PROCESS_RESPONSE; |
| return NavigationThrottle::PROCEED; |
| } |
| |
| bool NavigationHandleImpl::MaybeTransferAndProceed() { |
| DCHECK_EQ(WILL_PROCESS_RESPONSE, state_); |
| |
| // Check if the navigation should transfer. This may result in the |
| // destruction of this NavigationHandle, and the cancellation of the request. |
| if (!MaybeTransferAndProceedInternal()) |
| return false; |
| |
| // Inform observers that the navigation is now ready to commit, unless a |
| // transfer of the navigation failed. |
| // PlzNavigate: when a navigation is not set to commit (204/205s/downloads) do |
| // not call ReadyToCommitNavigation. |
| DCHECK(!IsBrowserSideNavigationEnabled() || render_frame_host_ || |
| net_error_code_ == net::ERR_ABORTED); |
| if (!IsBrowserSideNavigationEnabled() || render_frame_host_) |
| ReadyToCommitNavigation(render_frame_host_); |
| return true; |
| } |
| |
| bool NavigationHandleImpl::MaybeTransferAndProceedInternal() { |
| DCHECK(render_frame_host_ || (IsBrowserSideNavigationEnabled() && |
| net_error_code_ == net::ERR_ABORTED)); |
| |
| // PlzNavigate: the final RenderFrameHost handling this navigation has been |
| // decided before calling WillProcessResponse in |
| // NavigationRequest::OnResponseStarted. |
| // TODO(clamy): See if PlzNavigate could use this code to check whether to |
| // use the RFH determined at the start of the navigation or to switch to |
| // another one. |
| if (IsBrowserSideNavigationEnabled()) |
| return true; |
| |
| // A navigation from a RenderFrame that is no longer active should not attempt |
| // to transfer. |
| if (!render_frame_host_->is_active()) { |
| // This will cause the deletion of this NavigationHandle and the |
| // cancellation of the navigation. |
| render_frame_host_->SetNavigationHandle(nullptr); |
| return false; |
| } |
| |
| // Subframes shouldn't swap processes unless out-of-process iframes are |
| // possible. |
| if (!IsInMainFrame() && !SiteIsolationPolicy::AreCrossProcessFramesPossible()) |
| return true; |
| |
| // If this is a download, do not do a cross-site check. The renderer will |
| // see it is a download and abort the request. |
| // |
| // Similarly, HTTP 204 (No Content) responses leave the renderer showing the |
| // previous page. The navigation should be allowed to finish without running |
| // the unload handler or swapping in the pending RenderFrameHost. |
| if (is_download_ || is_stream_ || |
| (response_headers_.get() && response_headers_->response_code() == 204)) { |
| return true; |
| } |
| |
| // The content embedder can decide that a transfer to a different process is |
| // required for this URL. |
| bool should_transfer = |
| GetContentClient()->browser()->ShouldSwapProcessesForRedirect( |
| frame_tree_node_->navigator()->GetController()->GetBrowserContext(), |
| original_url_, url_); |
| |
| RenderFrameHostManager* manager = |
| render_frame_host_->frame_tree_node()->render_manager(); |
| |
| // In the site-per-process model, the RenderFrameHostManager may also decide |
| // (independently from the content embedder's ShouldSwapProcessesForRedirect |
| // above) that a process transfer is needed. Process transfers are skipped for |
| // WebUI processes for now, since e.g. chrome://settings has multiple |
| // "cross-site" chrome:// frames, and that doesn't yet work cross-process. |
| if (SiteIsolationPolicy::AreCrossProcessFramesPossible() && |
| !ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings( |
| render_frame_host_->GetProcess()->GetID())) { |
| should_transfer |= manager->IsRendererTransferNeededForNavigation( |
| render_frame_host_, url_); |
| } |
| |
| // Start the transfer if needed. |
| if (should_transfer) { |
| // This may destroy the NavigationHandle if the transfer fails. |
| base::WeakPtr<NavigationHandleImpl> weak_self = weak_factory_.GetWeakPtr(); |
| manager->OnCrossSiteResponse(render_frame_host_, request_id_, |
| redirect_chain_, sanitized_referrer_, |
| transition_, should_replace_current_entry_); |
| if (!weak_self) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void NavigationHandleImpl::RunCompleteCallback( |
| NavigationThrottle::ThrottleCheckResult result) { |
| DCHECK(result != NavigationThrottle::DEFER); |
| |
| ThrottleChecksFinishedCallback callback = complete_callback_; |
| complete_callback_.Reset(); |
| |
| if (!callback.is_null()) |
| callback.Run(result); |
| |
| // No code after running the callback, as it might have resulted in our |
| // destruction. |
| } |
| |
| void NavigationHandleImpl::RegisterNavigationThrottles() { |
| // Register the navigation throttles. The vector returned by |
| // CreateThrottlesForNavigation is not assigned to throttles_ directly because |
| // it would overwrite any throttles previously added with |
| // RegisterThrottleForTesting. |
| // TODO(carlosk, arthursonzogni): should simplify this to either use |
| // |throttles_| directly (except for the case described above) or |
| // |throttles_to_register| for registering all throttles. |
| std::vector<std::unique_ptr<NavigationThrottle>> throttles_to_register = |
| GetDelegate()->CreateThrottlesForNavigation(this); |
| |
| std::unique_ptr<NavigationThrottle> mixed_content_throttle = |
| MixedContentNavigationThrottle::CreateThrottleForNavigation(this); |
| if (mixed_content_throttle) |
| throttles_to_register.push_back(std::move(mixed_content_throttle)); |
| |
| std::unique_ptr<NavigationThrottle> devtools_throttle = |
| RenderFrameDevToolsAgentHost::CreateThrottleForNavigation(this); |
| if (devtools_throttle) |
| throttles_to_register.push_back(std::move(devtools_throttle)); |
| |
| std::unique_ptr<NavigationThrottle> clear_site_data_throttle = |
| ClearSiteDataThrottle::CreateThrottleForNavigation(this); |
| if (clear_site_data_throttle) |
| throttles_to_register.push_back(std::move(clear_site_data_throttle)); |
| |
| std::unique_ptr<content::NavigationThrottle> ancestor_throttle = |
| content::AncestorThrottle::MaybeCreateThrottleFor(this); |
| if (ancestor_throttle) |
| throttles_.push_back(std::move(ancestor_throttle)); |
| |
| throttles_.insert(throttles_.begin(), |
| std::make_move_iterator(throttles_to_register.begin()), |
| std::make_move_iterator(throttles_to_register.end())); |
| } |
| |
| bool NavigationHandleImpl::IsSelfReferentialURL() { |
| // about: URLs should be exempted since they are reserved for other purposes |
| // and cannot be the source of infinite recursion. See |
| // https://crbug.com/341858 . |
| if (url_.SchemeIs("about")) |
| return false; |
| |
| // Browser-triggered navigations should be exempted. |
| if (!is_renderer_initiated_) |
| return false; |
| |
| // We allow one level of self-reference because some sites depend on that, |
| // but we don't allow more than one. |
| bool found_self_reference = false; |
| for (const FrameTreeNode* node = frame_tree_node_->parent(); node; |
| node = node->parent()) { |
| if (node->current_url().EqualsIgnoringRef(url_)) { |
| if (found_self_reference) |
| return true; |
| found_self_reference = true; |
| } |
| } |
| return false; |
| } |
| |
| } // namespace content |