| // Copyright 2014 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 "components/domain_reliability/monitor.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/check.h" |
| #include "base/command_line.h" |
| #include "base/feature_list.h" |
| #include "base/notreached.h" |
| #include "components/domain_reliability/baked_in_configs.h" |
| #include "components/domain_reliability/features.h" |
| #include "components/domain_reliability/google_configs.h" |
| #include "components/domain_reliability/quic_error_mapping.h" |
| #include "net/base/isolation_info.h" |
| #include "net/base/load_flags.h" |
| #include "net/base/net_errors.h" |
| #include "net/base/network_isolation_key.h" |
| #include "net/http/http_response_headers.h" |
| #include "net/url_request/url_request.h" |
| #include "net/url_request/url_request_context.h" |
| |
| namespace domain_reliability { |
| |
| namespace { |
| |
| // Creates a new beacon based on |beacon_template| but fills in the status, |
| // chrome_error, and server_ip fields based on the endpoint and result of |
| // |attempt|. |
| // |
| // If there is no matching status for the result, returns nullptr (which |
| // means the attempt should not result in a beacon being reported). |
| std::unique_ptr<DomainReliabilityBeacon> CreateBeaconFromAttempt( |
| const DomainReliabilityBeacon& beacon_template, |
| const net::ConnectionAttempt& attempt) { |
| std::string status; |
| if (!GetDomainReliabilityBeaconStatus( |
| attempt.result, beacon_template.http_response_code, &status)) { |
| return nullptr; |
| } |
| |
| auto beacon = std::make_unique<DomainReliabilityBeacon>(beacon_template); |
| beacon->status = status; |
| beacon->chrome_error = attempt.result; |
| if (!attempt.endpoint.address().empty()) |
| beacon->server_ip = attempt.endpoint.ToString(); |
| else |
| beacon->server_ip = ""; |
| return beacon; |
| } |
| |
| } // namespace |
| |
| DomainReliabilityMonitor::DomainReliabilityMonitor( |
| net::URLRequestContext* url_request_context, |
| const std::string& upload_reporter_string, |
| const DomainReliabilityContext::UploadAllowedCallback& |
| upload_allowed_callback) |
| : DomainReliabilityMonitor(url_request_context, |
| upload_reporter_string, |
| upload_allowed_callback, |
| std::make_unique<ActualTime>()) {} |
| |
| DomainReliabilityMonitor::DomainReliabilityMonitor( |
| net::URLRequestContext* url_request_context, |
| const std::string& upload_reporter_string, |
| const DomainReliabilityContext::UploadAllowedCallback& |
| upload_allowed_callback, |
| std::unique_ptr<MockableTime> time) |
| : time_(std::move(time)), |
| dispatcher_(time_.get()), |
| context_manager_(time_.get(), |
| upload_reporter_string, |
| upload_allowed_callback, |
| &dispatcher_), |
| discard_uploads_set_(false) { |
| DCHECK(url_request_context); |
| uploader_ = |
| DomainReliabilityUploader::Create(time_.get(), url_request_context); |
| context_manager_.SetUploader(uploader_.get()); |
| net::NetworkChangeNotifier::AddNetworkChangeObserver(this); |
| } |
| |
| DomainReliabilityMonitor::~DomainReliabilityMonitor() { |
| net::NetworkChangeNotifier::RemoveNetworkChangeObserver(this); |
| } |
| |
| void DomainReliabilityMonitor::Shutdown() { |
| uploader_->Shutdown(); |
| } |
| |
| void DomainReliabilityMonitor::AddBakedInConfigs() { |
| for (size_t i = 0; kBakedInJsonConfigs[i]; ++i) { |
| base::StringPiece json(kBakedInJsonConfigs[i]); |
| std::unique_ptr<const DomainReliabilityConfig> config = |
| DomainReliabilityConfig::FromJSON(json); |
| // Guard against accidentally checking in malformed JSON configs. |
| DCHECK(config->IsValid()); |
| context_manager_.AddContextForConfig(std::move(config)); |
| } |
| } |
| |
| void DomainReliabilityMonitor::SetDiscardUploads(bool discard_uploads) { |
| DCHECK(uploader_); |
| |
| uploader_->SetDiscardUploads(discard_uploads); |
| discard_uploads_set_ = true; |
| } |
| |
| void DomainReliabilityMonitor::OnBeforeRedirect(net::URLRequest* request) { |
| DCHECK(discard_uploads_set_); |
| |
| // Record the redirect itself in addition to the final request. The fact that |
| // a redirect is being followed indicates success. |
| OnRequestLegComplete(RequestInfo(*request, net::OK)); |
| } |
| |
| void DomainReliabilityMonitor::OnCompleted(net::URLRequest* request, |
| bool started, |
| int net_error) { |
| DCHECK(discard_uploads_set_); |
| |
| if (!started) |
| return; |
| RequestInfo request_info(*request, net_error); |
| OnRequestLegComplete(request_info); |
| |
| if (request_info.response_info.network_accessed) { |
| // A request was just using the network, so now is a good time to run any |
| // pending and eligible uploads. |
| dispatcher_.RunEligibleTasks(); |
| } |
| } |
| |
| void DomainReliabilityMonitor::OnNetworkChanged( |
| net::NetworkChangeNotifier::ConnectionType type) { |
| context_manager_.OnNetworkChanged(time_->NowTicks()); |
| } |
| |
| void DomainReliabilityMonitor::ClearBrowsingData( |
| DomainReliabilityClearMode mode, |
| const base::RepeatingCallback<bool(const GURL&)>& origin_filter) { |
| switch (mode) { |
| case CLEAR_BEACONS: |
| context_manager_.ClearBeacons(origin_filter); |
| break; |
| case CLEAR_CONTEXTS: |
| context_manager_.RemoveContexts(origin_filter); |
| break; |
| case MAX_CLEAR_MODE: |
| NOTREACHED(); |
| } |
| } |
| |
| base::Value DomainReliabilityMonitor::GetWebUIData() const { |
| base::Value data_value(base::Value::Type::DICTIONARY); |
| data_value.SetKey("contexts", context_manager_.GetWebUIData()); |
| return data_value; |
| } |
| |
| const DomainReliabilityContext* DomainReliabilityMonitor::AddContextForTesting( |
| std::unique_ptr<const DomainReliabilityConfig> config) { |
| DCHECK(config); |
| return context_manager_.AddContextForConfig(std::move(config)); |
| } |
| |
| void DomainReliabilityMonitor::ForceUploadsForTesting() { |
| dispatcher_.RunAllTasksForTesting(); |
| } |
| |
| void DomainReliabilityMonitor::OnRequestLegCompleteForTesting( |
| const RequestInfo& request) { |
| OnRequestLegComplete(request); |
| } |
| |
| const DomainReliabilityContext* |
| DomainReliabilityMonitor::LookupContextForTesting( |
| const std::string& hostname) const { |
| return context_manager_.GetContext(hostname); |
| } |
| |
| DomainReliabilityMonitor::RequestInfo::RequestInfo() = default; |
| |
| DomainReliabilityMonitor::RequestInfo::RequestInfo( |
| const net::URLRequest& request, |
| int net_error) |
| : url(request.url()), |
| network_isolation_key(request.isolation_info().network_isolation_key()), |
| net_error(net_error), |
| response_info(request.response_info()), |
| // This ignores cookie blocking by the NetworkDelegate, but probably |
| // should not. Unclear if it's worth fixing. |
| allow_credentials(request.allow_credentials()), |
| upload_depth( |
| DomainReliabilityUploader::GetURLRequestUploadDepth(request)) { |
| request.GetLoadTimingInfo(&load_timing_info); |
| request.GetConnectionAttempts(&connection_attempts); |
| request.PopulateNetErrorDetails(&details); |
| if (!request.GetTransactionRemoteEndpoint(&remote_endpoint)) |
| remote_endpoint = net::IPEndPoint(); |
| } |
| |
| DomainReliabilityMonitor::RequestInfo::RequestInfo(const RequestInfo& other) = |
| default; |
| |
| DomainReliabilityMonitor::RequestInfo::~RequestInfo() {} |
| |
| // static |
| bool DomainReliabilityMonitor::RequestInfo::ShouldReportRequest( |
| const DomainReliabilityMonitor::RequestInfo& request) { |
| // Always report DR upload requests, even though they don't allow credentials. |
| // Note: They are reported (i.e. generate a beacon) but do not necessarily |
| // trigger an upload by themselves. |
| if (request.upload_depth > 0) |
| return true; |
| |
| // Don't report requests that weren't supposed to send credentials. |
| if (!request.allow_credentials) |
| return false; |
| |
| // Report requests that accessed the network or failed with an error code |
| // that Domain Reliability is interested in. |
| if (request.response_info.network_accessed) |
| return true; |
| if (request.net_error != net::OK) |
| return true; |
| if (request.details.quic_port_migration_detected) |
| return true; |
| |
| return false; |
| } |
| |
| void DomainReliabilityMonitor::OnRequestLegComplete( |
| const RequestInfo& request) { |
| // Check these again because unit tests call this directly. |
| DCHECK(discard_uploads_set_); |
| |
| if (!RequestInfo::ShouldReportRequest(request)) |
| return; |
| |
| int response_code; |
| if (request.response_info.headers) |
| response_code = request.response_info.headers->response_code(); |
| else |
| response_code = -1; |
| |
| net::ConnectionAttempt url_request_attempt(request.remote_endpoint, |
| request.net_error); |
| |
| DomainReliabilityBeacon beacon_template; |
| if (request.response_info.connection_info != |
| net::HttpResponseInfo::CONNECTION_INFO_UNKNOWN) { |
| beacon_template.protocol = |
| GetDomainReliabilityProtocol(request.response_info.connection_info, |
| request.response_info.ssl_info.is_valid()); |
| } else { |
| // Use the connection info from the network error details if the response |
| // is unavailable. |
| beacon_template.protocol = |
| GetDomainReliabilityProtocol(request.details.connection_info, |
| request.response_info.ssl_info.is_valid()); |
| } |
| GetDomainReliabilityBeaconQuicError(request.details.quic_connection_error, |
| &beacon_template.quic_error); |
| beacon_template.http_response_code = response_code; |
| beacon_template.start_time = request.load_timing_info.request_start; |
| beacon_template.elapsed = time_->NowTicks() - beacon_template.start_time; |
| beacon_template.was_proxied = request.response_info.was_fetched_via_proxy; |
| beacon_template.url = request.url; |
| if (base::FeatureList::IsEnabled( |
| features::kPartitionDomainReliabilityByNetworkIsolationKey)) { |
| beacon_template.network_isolation_key = request.network_isolation_key; |
| } |
| beacon_template.upload_depth = request.upload_depth; |
| beacon_template.details = request.details; |
| |
| // This is not foolproof -- it's possible that we'll see the same error twice |
| // (e.g. an SSL error during connection on one attempt, and then an error |
| // that maps to the same code during a read). |
| // TODO(juliatuttle): Find a way for this code to reliably tell whether we |
| // eventually established a connection or not. |
| bool url_request_attempt_is_duplicate = false; |
| for (const auto& attempt : request.connection_attempts) { |
| if (attempt.result == url_request_attempt.result) |
| url_request_attempt_is_duplicate = true; |
| |
| std::unique_ptr<DomainReliabilityBeacon> beacon = |
| CreateBeaconFromAttempt(beacon_template, attempt); |
| if (beacon) |
| context_manager_.RouteBeacon(std::move(beacon)); |
| } |
| |
| if (url_request_attempt_is_duplicate) |
| return; |
| |
| std::unique_ptr<DomainReliabilityBeacon> beacon = |
| CreateBeaconFromAttempt(beacon_template, url_request_attempt); |
| if (beacon) |
| context_manager_.RouteBeacon(std::move(beacon)); |
| } |
| |
| } // namespace domain_reliability |