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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/proxy_resolver_v8_tracing_wrapper.h"
#include <string>
#include "base/bind.h"
#include "base/values.h"
#include "net/base/net_errors.h"
#include "net/log/net_log.h"
#include "net/proxy/proxy_resolver_error_observer.h"
namespace net {
namespace {
// Returns event parameters for a PAC error message (line number + message).
scoped_ptr<base::Value> NetLogErrorCallback(
int line_number,
const base::string16* message,
NetLogCaptureMode /* capture_mode */) {
scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
dict->SetInteger("line_number", line_number);
dict->SetString("message", *message);
return dict.Pass();
}
class BindingsImpl : public ProxyResolverV8Tracing::Bindings {
public:
BindingsImpl(ProxyResolverErrorObserver* error_observer,
HostResolver* host_resolver,
NetLog* net_log,
const BoundNetLog& bound_net_log)
: error_observer_(error_observer),
host_resolver_(host_resolver),
net_log_(net_log),
bound_net_log_(bound_net_log) {}
// ProxyResolverV8Tracing::Bindings overrides.
void Alert(const base::string16& message) override {
// Send to the NetLog.
LogEventToCurrentRequestAndGlobally(
NetLog::TYPE_PAC_JAVASCRIPT_ALERT,
NetLog::StringCallback("message", &message));
}
void OnError(int line_number, const base::string16& message) override {
// Send the error to the NetLog.
LogEventToCurrentRequestAndGlobally(
NetLog::TYPE_PAC_JAVASCRIPT_ERROR,
base::Bind(&NetLogErrorCallback, line_number, &message));
if (error_observer_)
error_observer_->OnPACScriptError(line_number, message);
}
HostResolver* GetHostResolver() override { return host_resolver_; }
BoundNetLog GetBoundNetLog() override { return bound_net_log_; }
private:
void LogEventToCurrentRequestAndGlobally(
NetLog::EventType type,
const NetLog::ParametersCallback& parameters_callback) {
bound_net_log_.AddEvent(type, parameters_callback);
// Emit to the global NetLog event stream.
if (net_log_)
net_log_->AddGlobalEntry(type, parameters_callback);
}
ProxyResolverErrorObserver* error_observer_;
HostResolver* host_resolver_;
NetLog* net_log_;
BoundNetLog bound_net_log_;
};
class ProxyResolverV8TracingWrapper : public ProxyResolver {
public:
ProxyResolverV8TracingWrapper(
scoped_ptr<ProxyResolverV8Tracing> resolver_impl,
NetLog* net_log,
HostResolver* host_resolver,
scoped_ptr<ProxyResolverErrorObserver> error_observer);
int GetProxyForURL(const GURL& url,
ProxyInfo* results,
const CompletionCallback& callback,
RequestHandle* request,
const BoundNetLog& net_log) override;
void CancelRequest(RequestHandle request) override;
LoadState GetLoadState(RequestHandle request) const override;
private:
scoped_ptr<ProxyResolverV8Tracing> resolver_impl_;
NetLog* net_log_;
HostResolver* host_resolver_;
scoped_ptr<ProxyResolverErrorObserver> error_observer_;
DISALLOW_COPY_AND_ASSIGN(ProxyResolverV8TracingWrapper);
};
ProxyResolverV8TracingWrapper::ProxyResolverV8TracingWrapper(
scoped_ptr<ProxyResolverV8Tracing> resolver_impl,
NetLog* net_log,
HostResolver* host_resolver,
scoped_ptr<ProxyResolverErrorObserver> error_observer)
: resolver_impl_(resolver_impl.Pass()),
net_log_(net_log),
host_resolver_(host_resolver),
error_observer_(error_observer.Pass()) {
}
int ProxyResolverV8TracingWrapper::GetProxyForURL(
const GURL& url,
ProxyInfo* results,
const CompletionCallback& callback,
RequestHandle* request,
const BoundNetLog& net_log) {
resolver_impl_->GetProxyForURL(
url, results, callback, request,
make_scoped_ptr(new BindingsImpl(error_observer_.get(), host_resolver_,
net_log_, net_log)));
return ERR_IO_PENDING;
}
void ProxyResolverV8TracingWrapper::CancelRequest(RequestHandle request) {
resolver_impl_->CancelRequest(request);
}
LoadState ProxyResolverV8TracingWrapper::GetLoadState(
RequestHandle request) const {
return resolver_impl_->GetLoadState(request);
}
} // namespace
ProxyResolverFactoryV8TracingWrapper::ProxyResolverFactoryV8TracingWrapper(
HostResolver* host_resolver,
NetLog* net_log,
const base::Callback<scoped_ptr<ProxyResolverErrorObserver>()>&
error_observer_factory)
: ProxyResolverFactory(true),
factory_impl_(ProxyResolverV8TracingFactory::Create()),
host_resolver_(host_resolver),
net_log_(net_log),
error_observer_factory_(error_observer_factory) {
}
ProxyResolverFactoryV8TracingWrapper::~ProxyResolverFactoryV8TracingWrapper() =
default;
int ProxyResolverFactoryV8TracingWrapper::CreateProxyResolver(
const scoped_refptr<ProxyResolverScriptData>& pac_script,
scoped_ptr<ProxyResolver>* resolver,
const CompletionCallback& callback,
scoped_ptr<Request>* request) {
scoped_ptr<scoped_ptr<ProxyResolverV8Tracing>> v8_resolver(
new scoped_ptr<ProxyResolverV8Tracing>);
scoped_ptr<ProxyResolverErrorObserver> error_observer =
error_observer_factory_.Run();
// Note: Argument evaluation order is unspecified, so make copies before
// passing |v8_resolver| and |error_observer|.
scoped_ptr<ProxyResolverV8Tracing>* v8_resolver_local = v8_resolver.get();
ProxyResolverErrorObserver* error_observer_local = error_observer.get();
factory_impl_->CreateProxyResolverV8Tracing(
pac_script,
make_scoped_ptr(new BindingsImpl(error_observer_local, host_resolver_,
net_log_, BoundNetLog())),
v8_resolver_local,
base::Bind(&ProxyResolverFactoryV8TracingWrapper::OnProxyResolverCreated,
base::Unretained(this), base::Passed(&v8_resolver), resolver,
callback, base::Passed(&error_observer)),
request);
return ERR_IO_PENDING;
}
void ProxyResolverFactoryV8TracingWrapper::OnProxyResolverCreated(
scoped_ptr<scoped_ptr<ProxyResolverV8Tracing>> v8_resolver,
scoped_ptr<ProxyResolver>* resolver,
const CompletionCallback& callback,
scoped_ptr<ProxyResolverErrorObserver> error_observer,
int error) {
if (error == OK) {
resolver->reset(new ProxyResolverV8TracingWrapper(
v8_resolver->Pass(), net_log_, host_resolver_, error_observer.Pass()));
}
callback.Run(error);
}
} // namespace net
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