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// Copyright 2014 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 "modules/credentialmanager/CredentialsContainer.h"
#include "bindings/core/v8/Dictionary.h"
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptPromiseResolver.h"
#include "core/dom/DOMException.h"
#include "core/dom/Document.h"
#include "core/dom/ExceptionCode.h"
#include "core/dom/ExecutionContext.h"
#include "core/frame/Frame.h"
#include "core/frame/UseCounter.h"
#include "core/page/FrameTree.h"
#include "modules/credentialmanager/Credential.h"
#include "modules/credentialmanager/CredentialManagerClient.h"
#include "modules/credentialmanager/CredentialRequestOptions.h"
#include "modules/credentialmanager/FederatedCredential.h"
#include "modules/credentialmanager/FederatedCredentialRequestOptions.h"
#include "modules/credentialmanager/PasswordCredential.h"
#include "platform/weborigin/SecurityOrigin.h"
#include "public/platform/Platform.h"
#include "public/platform/WebCredential.h"
#include "public/platform/WebCredentialManagerClient.h"
#include "public/platform/WebCredentialManagerError.h"
#include "public/platform/WebFederatedCredential.h"
#include "public/platform/WebPasswordCredential.h"
#include "wtf/PtrUtil.h"
#include <memory>
namespace blink {
static void rejectDueToCredentialManagerError(
ScriptPromiseResolver* resolver,
WebCredentialManagerError reason) {
switch (reason) {
case WebCredentialManagerDisabledError:
resolver->reject(DOMException::create(
InvalidStateError, "The credential manager is disabled."));
break;
case WebCredentialManagerPendingRequestError:
resolver->reject(DOMException::create(InvalidStateError,
"A 'get()' request is pending."));
break;
case WebCredentialManagerUnknownError:
default:
resolver->reject(DOMException::create(NotReadableError,
"An unknown error occurred while "
"talking to the credential "
"manager."));
break;
}
}
class NotificationCallbacks
: public WebCredentialManagerClient::NotificationCallbacks {
WTF_MAKE_NONCOPYABLE(NotificationCallbacks);
public:
explicit NotificationCallbacks(ScriptPromiseResolver* resolver)
: m_resolver(resolver) {}
~NotificationCallbacks() override {}
void onSuccess() override {
Frame* frame =
toDocument(m_resolver->getScriptState()->getExecutionContext())
->frame();
SECURITY_CHECK(!frame || frame == frame->tree().top());
m_resolver->resolve();
}
void onError(WebCredentialManagerError reason) override {
rejectDueToCredentialManagerError(m_resolver, reason);
}
private:
const Persistent<ScriptPromiseResolver> m_resolver;
};
class RequestCallbacks : public WebCredentialManagerClient::RequestCallbacks {
WTF_MAKE_NONCOPYABLE(RequestCallbacks);
public:
explicit RequestCallbacks(ScriptPromiseResolver* resolver)
: m_resolver(resolver) {}
~RequestCallbacks() override {}
void onSuccess(std::unique_ptr<WebCredential> webCredential) override {
Frame* frame =
toDocument(m_resolver->getScriptState()->getExecutionContext())
->frame();
SECURITY_CHECK(!frame || frame == frame->tree().top());
std::unique_ptr<WebCredential> credential =
WTF::wrapUnique(webCredential.release());
if (!credential || !frame) {
m_resolver->resolve();
return;
}
ASSERT(credential->isPasswordCredential() ||
credential->isFederatedCredential());
UseCounter::count(m_resolver->getScriptState()->getExecutionContext(),
UseCounter::CredentialManagerGetReturnedCredential);
if (credential->isPasswordCredential())
m_resolver->resolve(PasswordCredential::create(
static_cast<WebPasswordCredential*>(credential.get())));
else
m_resolver->resolve(FederatedCredential::create(
static_cast<WebFederatedCredential*>(credential.get())));
}
void onError(WebCredentialManagerError reason) override {
rejectDueToCredentialManagerError(m_resolver, reason);
}
private:
const Persistent<ScriptPromiseResolver> m_resolver;
};
CredentialsContainer* CredentialsContainer::create() {
return new CredentialsContainer();
}
CredentialsContainer::CredentialsContainer() {}
static bool checkBoilerplate(ScriptPromiseResolver* resolver) {
Frame* frame =
toDocument(resolver->getScriptState()->getExecutionContext())->frame();
if (!frame || frame != frame->tree().top()) {
resolver->reject(DOMException::create(SecurityError,
"CredentialContainer methods may "
"only be executed in a top-level "
"document."));
return false;
}
String errorMessage;
if (!resolver->getScriptState()->getExecutionContext()->isSecureContext(
errorMessage)) {
resolver->reject(DOMException::create(SecurityError, errorMessage));
return false;
}
CredentialManagerClient* client = CredentialManagerClient::from(
resolver->getScriptState()->getExecutionContext());
if (!client) {
resolver->reject(DOMException::create(
InvalidStateError,
"Could not establish connection to the credential manager."));
return false;
}
return true;
}
ScriptPromise CredentialsContainer::get(
ScriptState* scriptState,
const CredentialRequestOptions& options) {
ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
ScriptPromise promise = resolver->promise();
if (!checkBoilerplate(resolver))
return promise;
Vector<KURL> providers;
if (options.hasFederated() && options.federated().hasProviders()) {
// TODO(mkwst): CredentialRequestOptions::federated() needs to return a
// reference, not a value. Because it returns a temporary value now, a for
// loop that directly references the value generates code that holds a
// reference to a value that no longer exists by the time the loop starts
// looping. In order to avoid this crazyness for the moment, we're making a
// copy of the vector. https://crbug.com/587088
const Vector<String> providerStrings = options.federated().providers();
for (const auto& string : providerStrings) {
KURL url = KURL(KURL(), string);
if (url.isValid())
providers.push_back(url);
}
}
UseCounter::count(scriptState->getExecutionContext(),
options.unmediated()
? UseCounter::CredentialManagerGetWithoutUI
: UseCounter::CredentialManagerGetWithUI);
CredentialManagerClient::from(scriptState->getExecutionContext())
->dispatchGet(options.unmediated(), options.password(), providers,
new RequestCallbacks(resolver));
return promise;
}
ScriptPromise CredentialsContainer::store(ScriptState* scriptState,
Credential* credential) {
ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
ScriptPromise promise = resolver->promise();
if (!checkBoilerplate(resolver))
return promise;
auto webCredential =
WebCredential::create(credential->getPlatformCredential());
CredentialManagerClient::from(scriptState->getExecutionContext())
->dispatchStore(*webCredential, new NotificationCallbacks(resolver));
return promise;
}
ScriptPromise CredentialsContainer::requireUserMediation(
ScriptState* scriptState) {
ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
ScriptPromise promise = resolver->promise();
if (!checkBoilerplate(resolver))
return promise;
CredentialManagerClient::from(scriptState->getExecutionContext())
->dispatchRequireUserMediation(new NotificationCallbacks(resolver));
return promise;
}
} // namespace blink
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