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atom_api_protocol.cc
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atom_api_protocol.cc
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// Copyright (c) 2013 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/api/atom_api_protocol.h"
#include "atom/browser/atom_browser_client.h"
#include "atom/browser/atom_browser_main_parts.h"
#include "atom/browser/browser.h"
#include "atom/browser/net/url_request_async_asar_job.h"
#include "atom/browser/net/url_request_buffer_job.h"
#include "atom/browser/net/url_request_fetch_job.h"
#include "atom/browser/net/url_request_stream_job.h"
#include "atom/browser/net/url_request_string_job.h"
#include "atom/common/native_mate_converters/callback.h"
#include "atom/common/native_mate_converters/value_converter.h"
#include "atom/common/node_includes.h"
#include "atom/common/options_switches.h"
#include "base/command_line.h"
#include "base/strings/string_util.h"
#include "content/public/browser/child_process_security_policy.h"
#include "native_mate/dictionary.h"
#include "url/url_util.h"
using content::BrowserThread;
namespace {
// List of registered custom standard schemes.
std::vector<std::string> g_standard_schemes;
struct SchemeOptions {
bool standard = false;
bool secure = false;
bool bypassCSP = false;
bool allowServiceWorkers = false;
bool supportFetchAPI = false;
bool corsEnabled = false;
};
struct CustomScheme {
std::string scheme;
SchemeOptions options;
};
} // namespace
namespace mate {
template <>
struct Converter<CustomScheme> {
static bool FromV8(v8::Isolate* isolate,
v8::Local<v8::Value> val,
CustomScheme* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
if (!dict.Get("scheme", &(out->scheme)))
return false;
mate::Dictionary opt;
// options are optional. Default values specified in SchemeOptions are used
if (dict.Get("privileges", &opt)) {
opt.Get("standard", &(out->options.standard));
opt.Get("supportFetchAPI", &(out->options.supportFetchAPI));
opt.Get("secure", &(out->options.secure));
opt.Get("bypassCSP", &(out->options.bypassCSP));
opt.Get("allowServiceWorkers", &(out->options.allowServiceWorkers));
opt.Get("supportFetchAPI", &(out->options.supportFetchAPI));
opt.Get("corsEnabled", &(out->options.corsEnabled));
}
return true;
}
};
} // namespace mate
namespace atom {
namespace api {
std::vector<std::string> GetStandardSchemes() {
return g_standard_schemes;
}
void RegisterSchemesAsPrivileged(v8::Local<v8::Value> val,
mate::Arguments* args) {
std::vector<CustomScheme> custom_schemes;
if (!mate::ConvertFromV8(args->isolate(), val, &custom_schemes)) {
args->ThrowError("Argument must be an array of custom schemes.");
return;
}
std::vector<std::string> secure_schemes, cspbypassing_schemes, fetch_schemes,
service_worker_schemes, cors_schemes;
for (const auto& custom_scheme : custom_schemes) {
// Register scheme to privileged list (https, wss, data, chrome-extension)
if (custom_scheme.options.standard) {
auto* policy = content::ChildProcessSecurityPolicy::GetInstance();
url::AddStandardScheme(custom_scheme.scheme.c_str(),
url::SCHEME_WITH_HOST);
g_standard_schemes.push_back(custom_scheme.scheme);
policy->RegisterWebSafeScheme(custom_scheme.scheme);
}
if (custom_scheme.options.secure) {
secure_schemes.push_back(custom_scheme.scheme);
url::AddSecureScheme(custom_scheme.scheme.c_str());
}
if (custom_scheme.options.bypassCSP) {
cspbypassing_schemes.push_back(custom_scheme.scheme);
url::AddCSPBypassingScheme(custom_scheme.scheme.c_str());
}
if (custom_scheme.options.corsEnabled) {
cors_schemes.push_back(custom_scheme.scheme);
url::AddCorsEnabledScheme(custom_scheme.scheme.c_str());
}
if (custom_scheme.options.supportFetchAPI) {
fetch_schemes.push_back(custom_scheme.scheme);
}
if (custom_scheme.options.allowServiceWorkers) {
service_worker_schemes.push_back(custom_scheme.scheme);
}
}
const auto AppendSchemesToCmdLine = [](const char* switch_name,
std::vector<std::string> schemes) {
// Add the schemes to command line switches, so child processes can also
// register them.
base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
switch_name, base::JoinString(schemes, ","));
};
AppendSchemesToCmdLine(atom::switches::kSecureSchemes, secure_schemes);
AppendSchemesToCmdLine(atom::switches::kBypassCSPSchemes,
cspbypassing_schemes);
AppendSchemesToCmdLine(atom::switches::kCORSSchemes, cors_schemes);
AppendSchemesToCmdLine(atom::switches::kFetchSchemes, fetch_schemes);
AppendSchemesToCmdLine(atom::switches::kServiceWorkerSchemes,
service_worker_schemes);
AppendSchemesToCmdLine(atom::switches::kStandardSchemes, g_standard_schemes);
}
Protocol::Protocol(v8::Isolate* isolate, AtomBrowserContext* browser_context)
: browser_context_(browser_context), weak_factory_(this) {
Init(isolate);
}
Protocol::~Protocol() {}
void Protocol::UnregisterProtocol(const std::string& scheme,
mate::Arguments* args) {
CompletionCallback callback;
args->GetNext(&callback);
auto* getter = static_cast<URLRequestContextGetter*>(
browser_context_->GetRequestContext());
base::PostTaskWithTraitsAndReplyWithResult(
FROM_HERE, {content::BrowserThread::IO},
base::BindOnce(&Protocol::UnregisterProtocolInIO,
base::RetainedRef(getter), scheme),
base::BindOnce(&Protocol::OnIOCompleted, GetWeakPtr(), callback));
}
// static
Protocol::ProtocolError Protocol::UnregisterProtocolInIO(
scoped_refptr<URLRequestContextGetter> request_context_getter,
const std::string& scheme) {
auto* job_factory = request_context_getter->job_factory();
if (!job_factory->HasProtocolHandler(scheme))
return PROTOCOL_NOT_REGISTERED;
job_factory->SetProtocolHandler(scheme, nullptr);
return PROTOCOL_OK;
}
bool IsProtocolHandledInIO(
scoped_refptr<URLRequestContextGetter> request_context_getter,
const std::string& scheme) {
bool is_handled =
request_context_getter->job_factory()->IsHandledProtocol(scheme);
return is_handled;
}
void PromiseCallback(scoped_refptr<util::Promise> promise, bool handled) {
promise->Resolve(handled);
}
v8::Local<v8::Promise> Protocol::IsProtocolHandled(const std::string& scheme) {
scoped_refptr<util::Promise> promise = new util::Promise(isolate());
auto* getter = static_cast<URLRequestContextGetter*>(
browser_context_->GetRequestContext());
base::PostTaskWithTraitsAndReplyWithResult(
FROM_HERE, {content::BrowserThread::IO},
base::Bind(&IsProtocolHandledInIO, base::RetainedRef(getter), scheme),
base::Bind(&PromiseCallback, promise));
return promise->GetHandle();
}
void Protocol::UninterceptProtocol(const std::string& scheme,
mate::Arguments* args) {
CompletionCallback callback;
args->GetNext(&callback);
auto* getter = static_cast<URLRequestContextGetter*>(
browser_context_->GetRequestContext());
base::PostTaskWithTraitsAndReplyWithResult(
FROM_HERE, {content::BrowserThread::IO},
base::BindOnce(&Protocol::UninterceptProtocolInIO,
base::RetainedRef(getter), scheme),
base::BindOnce(&Protocol::OnIOCompleted, GetWeakPtr(), callback));
}
// static
Protocol::ProtocolError Protocol::UninterceptProtocolInIO(
scoped_refptr<URLRequestContextGetter> request_context_getter,
const std::string& scheme) {
return request_context_getter->job_factory()->UninterceptProtocol(scheme)
? PROTOCOL_OK
: PROTOCOL_NOT_INTERCEPTED;
}
void Protocol::OnIOCompleted(const CompletionCallback& callback,
ProtocolError error) {
// The completion callback is optional.
if (callback.is_null())
return;
v8::Locker locker(isolate());
v8::HandleScope handle_scope(isolate());
if (error == PROTOCOL_OK) {
callback.Run(v8::Null(isolate()));
} else {
std::string str = ErrorCodeToString(error);
callback.Run(v8::Exception::Error(mate::StringToV8(isolate(), str)));
}
}
std::string Protocol::ErrorCodeToString(ProtocolError error) {
switch (error) {
case PROTOCOL_FAIL:
return "Failed to manipulate protocol factory";
case PROTOCOL_REGISTERED:
return "The scheme has been registered";
case PROTOCOL_NOT_REGISTERED:
return "The scheme has not been registered";
case PROTOCOL_INTERCEPTED:
return "The scheme has been intercepted";
case PROTOCOL_NOT_INTERCEPTED:
return "The scheme has not been intercepted";
default:
return "Unexpected error";
}
}
// static
mate::Handle<Protocol> Protocol::Create(v8::Isolate* isolate,
AtomBrowserContext* browser_context) {
return mate::CreateHandle(isolate, new Protocol(isolate, browser_context));
}
// static
void Protocol::BuildPrototype(v8::Isolate* isolate,
v8::Local<v8::FunctionTemplate> prototype) {
prototype->SetClassName(mate::StringToV8(isolate, "Protocol"));
mate::ObjectTemplateBuilder(isolate, prototype->PrototypeTemplate())
.SetMethod("registerStringProtocol",
&Protocol::RegisterProtocol<URLRequestStringJob>)
.SetMethod("registerBufferProtocol",
&Protocol::RegisterProtocol<URLRequestBufferJob>)
.SetMethod("registerFileProtocol",
&Protocol::RegisterProtocol<URLRequestAsyncAsarJob>)
.SetMethod("registerHttpProtocol",
&Protocol::RegisterProtocol<URLRequestFetchJob>)
.SetMethod("registerStreamProtocol",
&Protocol::RegisterProtocol<URLRequestStreamJob>)
.SetMethod("unregisterProtocol", &Protocol::UnregisterProtocol)
.SetMethod("isProtocolHandled", &Protocol::IsProtocolHandled)
.SetMethod("interceptStringProtocol",
&Protocol::InterceptProtocol<URLRequestStringJob>)
.SetMethod("interceptBufferProtocol",
&Protocol::InterceptProtocol<URLRequestBufferJob>)
.SetMethod("interceptFileProtocol",
&Protocol::InterceptProtocol<URLRequestAsyncAsarJob>)
.SetMethod("interceptHttpProtocol",
&Protocol::InterceptProtocol<URLRequestFetchJob>)
.SetMethod("interceptStreamProtocol",
&Protocol::InterceptProtocol<URLRequestStreamJob>)
.SetMethod("uninterceptProtocol", &Protocol::UninterceptProtocol);
}
} // namespace api
} // namespace atom
namespace {
void RegisterSchemesAsPrivileged(v8::Local<v8::Value> val,
mate::Arguments* args) {
if (atom::Browser::Get()->is_ready()) {
args->ThrowError(
"protocol.registerSchemesAsPrivileged should be called before "
"app is ready");
return;
}
atom::api::RegisterSchemesAsPrivileged(val, args);
}
void Initialize(v8::Local<v8::Object> exports,
v8::Local<v8::Value> unused,
v8::Local<v8::Context> context,
void* priv) {
v8::Isolate* isolate = context->GetIsolate();
mate::Dictionary dict(isolate, exports);
dict.SetMethod("registerSchemesAsPrivileged", &RegisterSchemesAsPrivileged);
dict.SetMethod("getStandardSchemes", &atom::api::GetStandardSchemes);
}
} // namespace
NODE_BUILTIN_MODULE_CONTEXT_AWARE(atom_browser_protocol, Initialize)