WIP: Prototype OOP V8 PAC.

net/proxy/proxy_resolver_mojo_host.cc

+// 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_host.h"
+
+#include "mojo/common/common_type_converters.h"
+#include "net/base/net_errors.h"
+#include "net/base/net_log.h"
+#include "net/dns/host_resolver_mojo.h"
+#include "net/proxy/proxy_info.h"
+#include "net/proxy/proxy_resolver.h"
+#include "net/proxy/proxy_resolver_error_observer_mojo.h"
+#include "net/proxy/proxy_resolver_mojo_host.h"
+#include "net/proxy/proxy_resolver_script_data.h"
+#include "net/proxy/proxy_resolver_v8.h"
+#include "net/proxy/proxy_resolver_v8_tracing.h"
+
+namespace net {
+namespace {
+
+class Job : public mojo::ErrorHandler {
+ public:
+  Job(const GURL& url,
+      proxy::ResolveRequestClientPtr client,
+      base::WeakPtr<ProxyResolverMojoHost> parent);
+
+ private:
+  ~Job() override;
+
+  // mojo::ErrorHandler override.
+  void OnConnectionError() override;
+
+  void GetProxyDone(int32_t error);
+
+  proxy::ResolveRequestClientPtr client_;
+  base::WeakPtr<ProxyResolverMojoHost> parent_;
+  ProxyInfo result_;
+  BoundNetLog net_log_;
+  ProxyResolver::RequestHandle request_handle_ = nullptr;
+
+  DISALLOW_COPY_AND_ASSIGN(Job);
+};
+
+class SetPacScriptJob : public mojo::ErrorHandler {
+ public:
+  SetPacScriptJob(const std::string& pac_script,
+                  proxy::SetPacScriptClientPtr client,
+                  base::WeakPtr<ProxyResolverMojoHost> parent);
+
+ private:
+  ~SetPacScriptJob() override;
+  void OnConnectionError() override;
+  void SetPacScriptDone(int32_t error);
+
+  proxy::SetPacScriptClientPtr client_;
+  base::WeakPtr<ProxyResolverMojoHost> parent_;
+
+  DISALLOW_COPY_AND_ASSIGN(SetPacScriptJob);
+};
+
+Job::Job(const GURL& url,
+         proxy::ResolveRequestClientPtr client,
+         base::WeakPtr<ProxyResolverMojoHost> parent)
+    : client_(client.Pass()), parent_(parent) {
+  client_.set_error_handler(this);
+  parent_->resolver()->GetProxyForURL(
+      url, &result_, base::Bind(&Job::GetProxyDone, base::Unretained(this)),
+      &request_handle_, net_log_);
+}
+
+void Job::GetProxyDone(int32_t error) {
+  request_handle_ = nullptr;
+  if (error)
+    client_->ReportError(error);
+  else
+    client_->ReportResult(result_.ToPacString());
+  delete this;
+}
+
+Job::~Job() = default;
+
+void Job::OnConnectionError() {
+  if (parent_ && request_handle_)
+    parent_->resolver()->CancelRequest(request_handle_);
+  delete this;
+}
+
+SetPacScriptJob::SetPacScriptJob(const std::string& pac_script,
+                                 proxy::SetPacScriptClientPtr client,
+                                 base::WeakPtr<ProxyResolverMojoHost> parent)
+    : client_(client.Pass()), parent_(parent) {
+  client_.set_error_handler(this);
+  auto result = parent_->resolver()->SetPacScript(
+      ProxyResolverScriptData::FromUTF8(pac_script),
+      base::Bind(&SetPacScriptJob::SetPacScriptDone, base::Unretained(this)));
+  if (result != ERR_IO_PENDING)
+    SetPacScriptDone(result);
+}
+
+void SetPacScriptJob::SetPacScriptDone(int32_t error) {
+  client_->ReportResult(error);
+  delete this;
+}
+
+SetPacScriptJob::~SetPacScriptJob() = default;
+
+void SetPacScriptJob::OnConnectionError() {
+  if (parent_)
+    parent_->resolver()->CancelSetPacScript();
+  delete this;
+}
+
+}  // namespace
+
+ProxyResolverMojoHost::ProxyResolverMojoHost(
+    scoped_ptr<ProxyResolver> resolver,
+    scoped_ptr<HostResolverMojo> host_resolver)
+    : resolver_(resolver.Pass()),
+      host_resolver_(host_resolver.Pass()),
+      weak_factory_(this) {
+}
+
+ProxyResolverMojoHost::~ProxyResolverMojoHost() = default;
+
+void ProxyResolverMojoHost::SetPacScript(const mojo::String& data,
+                                         proxy::SetPacScriptClientPtr client) {
+  VLOG(1) << "SetPacScript: " << data;
+  new SetPacScriptJob(data, client.Pass(), weak_factory_.GetWeakPtr());
+}
+
+void ProxyResolverMojoHost::GetProxyForUrl(
+    const mojo::String& url,
+    proxy::ResolveRequestClientPtr client) {
+  VLOG(1) << "GetProxyForUrl: " << url;
+  new Job(url.To<GURL>(), client.Pass(), weak_factory_.GetWeakPtr());
+}
+
+ProxyResolverMojoFactory::ProxyResolverMojoFactory(NetLog* net_log)
+    : net_log_(net_log) {
+}
+
+ProxyResolverMojoFactory::~ProxyResolverMojoFactory() = default;
+
+void ProxyResolverMojoFactory::CreateResolver(
+    mojo::InterfaceRequest<proxy::Resolver> resolver,
+    dns::ResolverPtr host_resolver_handle,
+    proxy::ErrorObserverPtr error_observer_handle) {
+  net::ProxyResolverV8::EnsureIsolateCreated();
+
+  HostResolverMojo* host_resolver =
+      new HostResolverMojo(host_resolver_handle.Pass());
+  ProxyResolverErrorObserverMojo* error_observer =
+      new ProxyResolverErrorObserverMojo(error_observer_handle.Pass());
+
+  mojo::BindToRequest(
+      new ProxyResolverMojoHost(make_scoped_ptr(new ProxyResolverV8Tracing(
+                                    host_resolver, error_observer, net_log_)),
+                                make_scoped_ptr(host_resolver)),
+      &resolver);
+}
+
+}  // namespace net