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// 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/mojo_proxy_resolver_factory_impl.h"
#include <string>
#include "base/macros.h"
#include "base/stl_util.h"
#include "net/base/net_errors.h"
#include "net/proxy/mojo_proxy_resolver_impl.h"
#include "net/proxy/mojo_proxy_resolver_v8_tracing_bindings.h"
#include "net/proxy/proxy_resolver_factory.h"
#include "net/proxy/proxy_resolver_v8_tracing.h"
namespace net {
namespace {
// A class to manage the lifetime of a MojoProxyResolverImpl. An instance will
// remain while the message pipe for the mojo connection remains open.
class MojoProxyResolverHolder {
public:
MojoProxyResolverHolder(
scoped_ptr<ProxyResolverV8Tracing> proxy_resolver_impl,
mojo::InterfaceRequest<interfaces::ProxyResolver> request);
private:
// Mojo error handler.
void OnConnectionError();
MojoProxyResolverImpl mojo_proxy_resolver_;
mojo::Binding<interfaces::ProxyResolver> binding_;
DISALLOW_COPY_AND_ASSIGN(MojoProxyResolverHolder);
};
MojoProxyResolverHolder::MojoProxyResolverHolder(
scoped_ptr<ProxyResolverV8Tracing> proxy_resolver_impl,
mojo::InterfaceRequest<interfaces::ProxyResolver> request)
: mojo_proxy_resolver_(proxy_resolver_impl.Pass()),
binding_(&mojo_proxy_resolver_, request.Pass()) {
binding_.set_connection_error_handler(base::Bind(
&MojoProxyResolverHolder::OnConnectionError, base::Unretained(this)));
}
void MojoProxyResolverHolder::OnConnectionError() {
delete this;
}
} // namespace
class MojoProxyResolverFactoryImpl::Job {
public:
Job(MojoProxyResolverFactoryImpl* parent,
const scoped_refptr<ProxyResolverScriptData>& pac_script,
ProxyResolverV8TracingFactory* proxy_resolver_factory,
mojo::InterfaceRequest<interfaces::ProxyResolver> request,
interfaces::ProxyResolverFactoryRequestClientPtr client);
~Job();
private:
// Mojo error handler.
void OnConnectionError();
void OnProxyResolverCreated(int error);
MojoProxyResolverFactoryImpl* const parent_;
scoped_ptr<ProxyResolverV8Tracing> proxy_resolver_impl_;
mojo::InterfaceRequest<interfaces::ProxyResolver> proxy_request_;
ProxyResolverV8TracingFactory* factory_;
scoped_ptr<net::ProxyResolverFactory::Request> request_;
interfaces::ProxyResolverFactoryRequestClientPtr client_ptr_;
DISALLOW_COPY_AND_ASSIGN(Job);
};
MojoProxyResolverFactoryImpl::Job::Job(
MojoProxyResolverFactoryImpl* factory,
const scoped_refptr<ProxyResolverScriptData>& pac_script,
ProxyResolverV8TracingFactory* proxy_resolver_factory,
mojo::InterfaceRequest<interfaces::ProxyResolver> request,
interfaces::ProxyResolverFactoryRequestClientPtr client)
: parent_(factory),
proxy_request_(request.Pass()),
factory_(proxy_resolver_factory),
client_ptr_(client.Pass()) {
client_ptr_.set_connection_error_handler(
base::Bind(&MojoProxyResolverFactoryImpl::Job::OnConnectionError,
base::Unretained(this)));
factory_->CreateProxyResolverV8Tracing(
pac_script,
make_scoped_ptr(new MojoProxyResolverV8TracingBindings<
interfaces::ProxyResolverFactoryRequestClient>(
client_ptr_.get())),
&proxy_resolver_impl_,
base::Bind(&MojoProxyResolverFactoryImpl::Job::OnProxyResolverCreated,
base::Unretained(this)),
&request_);
}
MojoProxyResolverFactoryImpl::Job::~Job() = default;
void MojoProxyResolverFactoryImpl::Job::OnConnectionError() {
client_ptr_->ReportResult(ERR_PAC_SCRIPT_TERMINATED);
parent_->RemoveJob(this);
}
void MojoProxyResolverFactoryImpl::Job::OnProxyResolverCreated(int error) {
if (error == OK) {
// The MojoProxyResolverHolder will delete itself if |proxy_request_|
// encounters a connection error.
new MojoProxyResolverHolder(proxy_resolver_impl_.Pass(),
proxy_request_.Pass());
}
client_ptr_->ReportResult(error);
parent_->RemoveJob(this);
}
MojoProxyResolverFactoryImpl::MojoProxyResolverFactoryImpl(
scoped_ptr<ProxyResolverV8TracingFactory> proxy_resolver_factory,
mojo::InterfaceRequest<interfaces::ProxyResolverFactory> request)
: proxy_resolver_impl_factory_(proxy_resolver_factory.Pass()),
binding_(this, request.Pass()) {
}
MojoProxyResolverFactoryImpl::MojoProxyResolverFactoryImpl(
mojo::InterfaceRequest<interfaces::ProxyResolverFactory> request)
: MojoProxyResolverFactoryImpl(ProxyResolverV8TracingFactory::Create(),
request.Pass()) {
}
MojoProxyResolverFactoryImpl::~MojoProxyResolverFactoryImpl() {
STLDeleteElements(&jobs_);
}
void MojoProxyResolverFactoryImpl::CreateResolver(
const mojo::String& pac_script,
mojo::InterfaceRequest<interfaces::ProxyResolver> request,
interfaces::ProxyResolverFactoryRequestClientPtr client) {
// The Job will call RemoveJob on |this| when either the create request
// finishes or |request| or |client| encounters a connection error.
jobs_.insert(new Job(
this, ProxyResolverScriptData::FromUTF8(pac_script.To<std::string>()),
proxy_resolver_impl_factory_.get(), request.Pass(), client.Pass()));
}
void MojoProxyResolverFactoryImpl::RemoveJob(Job* job) {
size_t erased = jobs_.erase(job);
DCHECK_EQ(1u, erased);
delete job;
}
} // namespace net
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