Index: net/proxy/proxy_resolver_mojo.cc |
diff --git a/net/proxy/proxy_resolver_mojo.cc b/net/proxy/proxy_resolver_mojo.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..6150d154b5106b9f85dad033164a5aca5908ce13 |
--- /dev/null |
+++ b/net/proxy/proxy_resolver_mojo.cc |
@@ -0,0 +1,254 @@ |
+// 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 "net/proxy/proxy_resolver_mojo.h" |
+ |
+#include "base/bind.h" |
+#include "base/logging.h" |
+#include "base/stl_util.h" |
+#include "mojo/common/common_type_converters.h" |
+#include "mojo/common/url_type_converters.h" |
+#include "net/base/net_errors.h" |
+#include "net/dns/mojo_host_resolver_impl.h" |
+#include "net/proxy/mojo_proxy_resolver_factory.h" |
+#include "net/proxy/mojo_proxy_type_converters.h" |
+#include "net/proxy/proxy_info.h" |
+#include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h" |
+#include "third_party/mojo/src/mojo/public/cpp/bindings/error_handler.h" |
+ |
+namespace net { |
+ |
+class ProxyResolverMojo::Job : public interfaces::ProxyResolverRequestClient, |
+ public mojo::ErrorHandler { |
+ public: |
+ Job(ProxyResolverMojo* resolver, |
+ const GURL& url, |
+ ProxyInfo* results, |
+ const net::CompletionCallback& callback); |
+ ~Job() override; |
+ |
+ // Cancels the job and prevents the callback from being run. |
+ void Cancel(); |
+ |
+ private: |
+ // Overridden from mojo::ErrorHandler: |
+ void OnConnectionError() override; |
+ |
+ // Overridden from interfaces::ProxyResolverRequestClient: |
+ void ReportResult( |
+ int32_t error, |
+ mojo::Array<interfaces::ProxyServerPtr> proxy_servers) override; |
+ |
+ ProxyResolverMojo* resolver_; |
+ const GURL url_; |
+ ProxyInfo* results_; |
+ net::CompletionCallback callback_; |
+ |
+ base::ThreadChecker thread_checker_; |
+ mojo::Binding<interfaces::ProxyResolverRequestClient> binding_; |
+}; |
+ |
+ProxyResolverMojo::Job::Job(ProxyResolverMojo* resolver, |
+ const GURL& url, |
+ ProxyInfo* results, |
+ const net::CompletionCallback& callback) |
+ : resolver_(resolver), |
+ url_(url), |
+ results_(results), |
+ callback_(callback), |
+ binding_(this) { |
+ binding_.set_error_handler(this); |
+ |
+ interfaces::ProxyResolverRequestClientPtr client_ptr; |
+ binding_.Bind(mojo::GetProxy(&client_ptr)); |
+ resolver_->mojo_proxy_resolver_ptr_->GetProxyForUrl(mojo::String::From(url_), |
+ client_ptr.Pass()); |
+} |
+ |
+ProxyResolverMojo::Job::~Job() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ if (!callback_.is_null()) |
+ callback_.Run(ERR_PAC_SCRIPT_TERMINATED); |
+} |
+ |
+void ProxyResolverMojo::Job::Cancel() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ DCHECK(!callback_.is_null()); |
+ callback_.Reset(); |
+} |
+ |
+void ProxyResolverMojo::Job::OnConnectionError() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ DVLOG(1) << "ProxyResolverMojo::Job::OnConnectionError"; |
+ resolver_->RemoveJob(this); |
+} |
+ |
+void ProxyResolverMojo::Job::ReportResult( |
+ int32_t error, |
+ mojo::Array<interfaces::ProxyServerPtr> proxy_servers) { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ DVLOG(1) << "ProxyResolverMojo::Job::ReportResult: " << error; |
+ |
+ if (error == OK) { |
+ *results_ = proxy_servers.To<ProxyInfo>(); |
+ DVLOG(1) << "Servers: " << results_->ToPacString(); |
+ } |
+ |
+ callback_.Run(error); |
+ callback_.Reset(); |
+ resolver_->RemoveJob(this); |
+} |
+ |
+ProxyResolverMojo::ProxyResolverMojo( |
+ MojoProxyResolverFactory* mojo_proxy_resolver_factory, |
+ HostResolver* host_resolver) |
+ : ProxyResolver(true /* |expects_pac_bytes| */), |
+ mojo_proxy_resolver_factory_(mojo_proxy_resolver_factory), |
+ host_resolver_(host_resolver) { |
+} |
+ |
+ProxyResolverMojo::~ProxyResolverMojo() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ // All pending requests should have been cancelled. |
+ DCHECK(pending_jobs_.empty()); |
+ DCHECK(set_pac_script_callback_.IsCancelled()); |
+} |
+ |
+void ProxyResolverMojo::CancelSetPacScript() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ set_pac_script_callback_.Cancel(); |
+} |
+ |
+int ProxyResolverMojo::SetPacScript( |
+ const scoped_refptr<ProxyResolverScriptData>& pac_script, |
+ const net::CompletionCallback& callback) { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ DCHECK(set_pac_script_callback_.IsCancelled()); |
+ DCHECK(!callback.is_null()); |
+ if (pac_script->type() != ProxyResolverScriptData::TYPE_SCRIPT_CONTENTS || |
+ pac_script->utf16().empty()) { |
+ return ERR_PAC_SCRIPT_FAILED; |
+ } |
+ |
+ DVLOG(1) << "ProxyResolverMojo::SetPacScript: " << pac_script->utf16(); |
+ set_pac_script_callback_.Reset( |
+ base::Bind(&ProxyResolverMojo::OnSetPacScriptDone, base::Unretained(this), |
+ pac_script, callback)); |
+ |
+ if (!mojo_proxy_resolver_ptr_) |
+ SetUpServices(); |
+ |
+ mojo_proxy_resolver_ptr_->SetPacScript( |
+ mojo::String::From(pac_script->utf16()), |
+ set_pac_script_callback_.callback()); |
+ |
+ return ERR_IO_PENDING; |
+} |
+ |
+void ProxyResolverMojo::OnSetPacScriptDone( |
+ const scoped_refptr<ProxyResolverScriptData>& pac_script, |
+ const net::CompletionCallback& callback, |
+ int32_t result) { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ DCHECK(!set_pac_script_callback_.IsCancelled()); |
+ DVLOG(1) << "ProxyResolverMojo::OnSetPacScriptDone: " << result; |
+ |
+ callback.Run(result); |
+ set_pac_script_callback_.Cancel(); |
+} |
+ |
+void ProxyResolverMojo::SetUpServices() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ // A Mojo service implementation must outlive its binding. |
+ mojo_host_resolver_binding_.reset(); |
+ |
+ interfaces::HostResolverPtr mojo_host_resolver_ptr; |
+ mojo_host_resolver_.reset(new MojoHostResolverImpl(host_resolver_)); |
+ mojo_host_resolver_binding_.reset(new mojo::Binding<interfaces::HostResolver>( |
+ mojo_host_resolver_.get(), mojo::GetProxy(&mojo_host_resolver_ptr))); |
+ mojo_proxy_resolver_ptr_.reset(); |
+ mojo_proxy_resolver_factory_->Create( |
+ mojo::GetProxy(&mojo_proxy_resolver_ptr_), mojo_host_resolver_ptr.Pass()); |
+ mojo_proxy_resolver_ptr_.set_error_handler(this); |
+} |
+ |
+void ProxyResolverMojo::AbortPendingRequests() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ if (!set_pac_script_callback_.IsCancelled()) { |
+ set_pac_script_callback_.callback().Run(ERR_PAC_SCRIPT_TERMINATED); |
+ set_pac_script_callback_.Cancel(); |
+ } |
+ |
+ // Need to use this loop because deleting a Job will cause its callback to be |
+ // run with a failure error code, which may cause other Jobs to be deleted. |
+ while (!pending_jobs_.empty()) { |
+ auto it = pending_jobs_.begin(); |
+ Job* job = *it; |
+ pending_jobs_.erase(it); |
+ |
+ // Deleting the job will cause its completion callback to be run with an |
+ // ERR_PAC_SCRIPT_TERMINATED error. |
+ delete job; |
+ } |
+} |
+ |
+void ProxyResolverMojo::OnConnectionError() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ DVLOG(1) << "ProxyResolverMojo::OnConnectionError"; |
+ |
+ // Disconnect from the Mojo proxy resolver service. An attempt to reconnect |
+ // will happen on the next |SetPacScript()| request. |
+ mojo_proxy_resolver_ptr_.reset(); |
+ |
+ // Aborting requests will invoke their callbacks, which may call |
+ // |SetPacScript()| and re-create the connection. So disconnect from the Mojo |
+ // service (above) before aborting the pending requests. |
+ AbortPendingRequests(); |
+} |
+ |
+void ProxyResolverMojo::RemoveJob(Job* job) { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ size_t num_erased = pending_jobs_.erase(job); |
+ DCHECK(num_erased); |
+ delete job; |
+} |
+ |
+int ProxyResolverMojo::GetProxyForURL(const GURL& url, |
+ ProxyInfo* results, |
+ const net::CompletionCallback& callback, |
+ RequestHandle* request, |
+ const BoundNetLog& net_log) { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ |
+ // If the Mojo service is not connected, fail. The Mojo service is connected |
+ // when the script is set, which must be done after construction and after a |
+ // previous request returns ERR_PAC_SCRIPT_TERMINATED due to the Mojo proxy |
+ // resolver process crashing. |
+ if (!mojo_proxy_resolver_ptr_) { |
+ DVLOG(1) << "ProxyResolverMojo::GetProxyForURL: Mojo not connected"; |
+ return ERR_PAC_SCRIPT_TERMINATED; |
+ } |
+ |
+ Job* job = new Job(this, url, results, callback); |
+ bool inserted = pending_jobs_.insert(job).second; |
+ DCHECK(inserted); |
+ *request = job; |
+ |
+ return ERR_IO_PENDING; |
+} |
+ |
+void ProxyResolverMojo::CancelRequest(RequestHandle request) { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ Job* job = static_cast<Job*>(request); |
+ DCHECK(job); |
+ job->Cancel(); |
+ RemoveJob(job); |
+} |
+ |
+LoadState ProxyResolverMojo::GetLoadState(RequestHandle request) const { |
+ // TODO(amistry): Implement real LoadState. |
+ return LOAD_STATE_RESOLVING_PROXY_FOR_URL; |
+} |
+ |
+} // namespace net |