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// Copyright 2013 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 "ppapi/proxy/platform_verification_private_resource.h"
#include "base/bind.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/proxy/dispatch_reply_message.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/shared_impl/ppapi_globals.h"
#include "ppapi/shared_impl/tracked_callback.h"
#include "ppapi/shared_impl/var.h"
#include "ppapi/shared_impl/var_tracker.h"
namespace ppapi {
namespace proxy {
PlatformVerificationPrivateResource::PlatformVerificationPrivateResource(
Connection connection,
PP_Instance instance)
: PluginResource(connection, instance) {
SendCreate(BROWSER, PpapiHostMsg_PlatformVerification_Create());
}
PlatformVerificationPrivateResource::~PlatformVerificationPrivateResource() {}
thunk::PPB_PlatformVerification_API*
PlatformVerificationPrivateResource::AsPPB_PlatformVerification_API() {
return this;
}
int32_t PlatformVerificationPrivateResource::ChallengePlatform(
const PP_Var& service_id,
const PP_Var& challenge,
PP_Var* signed_data,
PP_Var* signed_data_signature,
PP_Var* platform_key_certificate,
const scoped_refptr<TrackedCallback>& callback) {
// Prevent null types for obvious reasons, but also ref-counted types to avoid
// leaks on challenge failures (since they're only written to on success).
if (!signed_data || !signed_data_signature || !platform_key_certificate ||
VarTracker::IsVarTypeRefcounted(signed_data->type) ||
VarTracker::IsVarTypeRefcounted(signed_data_signature->type) ||
VarTracker::IsVarTypeRefcounted(platform_key_certificate->type)) {
return PP_ERROR_BADARGUMENT;
}
StringVar* service_id_str = StringVar::FromPPVar(service_id);
if (!service_id_str)
return PP_ERROR_BADARGUMENT;
scoped_refptr<ArrayBufferVar> challenge_buffer =
ArrayBufferVar::FromPPVar(challenge);
if (!challenge_buffer)
return PP_ERROR_BADARGUMENT;
uint8_t* challenge_data = static_cast<uint8_t*>(challenge_buffer->Map());
uint32 challenge_length = challenge_buffer->ByteLength();
std::vector<uint8_t> challenge_vector(challenge_data,
challenge_data + challenge_length);
challenge_buffer->Unmap();
PpapiHostMsg_PlatformVerification_ChallengePlatform challenge_message(
service_id_str->value(), challenge_vector);
ChallengePlatformParams output_params = {
signed_data, signed_data_signature, platform_key_certificate, callback };
Call<PpapiHostMsg_PlatformVerification_ChallengePlatformReply>(
BROWSER, challenge_message, base::Bind(
&PlatformVerificationPrivateResource::OnChallengePlatformReply,
base::Unretained(this), output_params));
return PP_OK_COMPLETIONPENDING;
}
void PlatformVerificationPrivateResource::OnChallengePlatformReply(
ChallengePlatformParams output_params,
const ResourceMessageReplyParams& params,
const std::vector<uint8_t>& raw_signed_data,
const std::vector<uint8_t>& raw_signed_data_signature,
const std::string& raw_platform_key_certificate) {
if (!TrackedCallback::IsPending(output_params.callback) ||
TrackedCallback::IsScheduledToRun(output_params.callback)) {
return;
}
if (params.result() == PP_OK) {
*(output_params.signed_data) =
(PpapiGlobals::Get()->GetVarTracker()->MakeArrayBufferVar(
raw_signed_data.size(), &raw_signed_data.front()))->GetPPVar();
*(output_params.signed_data_signature) =
(PpapiGlobals::Get()->GetVarTracker()->MakeArrayBufferVar(
raw_signed_data_signature.size(),
&raw_signed_data_signature.front()))->GetPPVar();
*(output_params.platform_key_certificate) =
(new StringVar(raw_platform_key_certificate))->GetPPVar();
}
output_params.callback->Run(params.result());
}
} // namespace proxy
} // namespace ppapi
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