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// Copyright (c) 2012 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/cpp/private/content_decryptor_private.h"
#include <cstring> // memcpy
#include "ppapi/c/ppb_var.h"
#include "ppapi/c/private/ppb_content_decryptor_private.h"
#include "ppapi/c/private/ppp_content_decryptor_private.h"
#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/instance_handle.h"
#include "ppapi/cpp/logging.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/module_impl.h"
#include "ppapi/cpp/var.h"
namespace pp {
namespace {
static const char kPPPContentDecryptorInterface[] =
PPP_CONTENTDECRYPTOR_PRIVATE_INTERFACE;
PP_Bool GenerateKeyRequest(PP_Instance instance,
PP_Var key_system_arg,
PP_Var init_data_arg) {
void* object =
Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
if (!object)
return PP_FALSE;
pp::Var key_system_var(pp::PASS_REF, key_system_arg);
if (key_system_var.is_string() == false)
return PP_FALSE;
pp::Var init_data_var(pp::PASS_REF, init_data_arg);
if (init_data_var.is_array_buffer() == false)
return PP_FALSE;
pp::VarArrayBuffer init_data_array_buffer(init_data_var);
return PP_FromBool(
static_cast<ContentDecryptor_Private*>(object)->GenerateKeyRequest(
key_system_var.AsString(),
init_data_array_buffer));
}
PP_Bool AddKey(PP_Instance instance,
PP_Var session_id_arg,
PP_Var key_arg,
PP_Var init_data_arg) {
void* object =
Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
if (!object)
return PP_FALSE;
pp::Var session_id_var(pp::PASS_REF, session_id_arg);
if (session_id_var.is_string() == false)
return PP_FALSE;
pp::Var key_var(pp::PASS_REF, key_arg);
if (key_var.is_array_buffer() == false)
return PP_FALSE;
pp::VarArrayBuffer key(key_var);
pp::Var init_data_var(pp::PASS_REF, init_data_arg);
if (init_data_var.is_array_buffer() == false)
return PP_FALSE;
pp::VarArrayBuffer init_data(init_data_var);
return PP_FromBool(
static_cast<ContentDecryptor_Private*>(object)->AddKey(
session_id_var.AsString(),
key,
init_data));
}
PP_Bool CancelKeyRequest(PP_Instance instance,
PP_Var session_id_arg) {
void* object =
Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
if (!object)
return PP_FALSE;
pp::Var session_id_var(pp::PASS_REF, session_id_arg);
if (session_id_var.is_string() == false)
return PP_FALSE;
return PP_FromBool(
static_cast<ContentDecryptor_Private*>(object)->
CancelKeyRequest(session_id_var.AsString()));
}
PP_Bool Decrypt(PP_Instance instance,
PP_Resource encrypted_resource,
const PP_EncryptedBlockInfo* encrypted_block_info) {
void* object =
Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
if (!object)
return PP_FALSE;
pp::Buffer_Dev encrypted_block(encrypted_resource);
return PP_FromBool(
static_cast<ContentDecryptor_Private*>(object)->Decrypt(
encrypted_block,
*encrypted_block_info));
}
PP_Bool DecryptAndDecode(PP_Instance instance,
PP_Resource encrypted_resource,
const PP_EncryptedBlockInfo* encrypted_block_info) {
void* object =
Instance::GetPerInstanceObject(instance, kPPPContentDecryptorInterface);
if (!object)
return PP_FALSE;
pp::Buffer_Dev encrypted_block(encrypted_resource);
return PP_FromBool(
static_cast<ContentDecryptor_Private*>(object)->DecryptAndDecode(
encrypted_block,
*encrypted_block_info));
}
const PPP_ContentDecryptor_Private ppp_content_decryptor = {
&GenerateKeyRequest,
&AddKey,
&CancelKeyRequest,
&Decrypt,
&DecryptAndDecode
};
template <> const char* interface_name<PPB_ContentDecryptor_Private>() {
return PPB_CONTENTDECRYPTOR_PRIVATE_INTERFACE;
}
} // namespace
ContentDecryptor_Private::ContentDecryptor_Private(Instance* instance)
: associated_instance_(instance) {
Module::Get()->AddPluginInterface(kPPPContentDecryptorInterface,
&ppp_content_decryptor);
instance->AddPerInstanceObject(kPPPContentDecryptorInterface, this);
}
ContentDecryptor_Private::~ContentDecryptor_Private() {
Instance::RemovePerInstanceObject(associated_instance_,
kPPPContentDecryptorInterface,
this);
}
void ContentDecryptor_Private::NeedKey(const std::string& key_system,
const std::string& session_id,
pp::VarArrayBuffer init_data) {
// session_id can be empty here.
if (has_interface<PPB_ContentDecryptor_Private>()) {
pp::Var key_system_var(key_system);
pp::Var session_id_var(session_id);
get_interface<PPB_ContentDecryptor_Private>()->NeedKey(
associated_instance_.pp_instance(),
key_system_var.pp_var(),
session_id_var.pp_var(),
init_data.pp_var());
}
}
void ContentDecryptor_Private::KeyAdded(const std::string& key_system,
const std::string& session_id) {
if (has_interface<PPB_ContentDecryptor_Private>()) {
pp::Var key_system_var(key_system);
pp::Var session_id_var(session_id);
get_interface<PPB_ContentDecryptor_Private>()->KeyAdded(
associated_instance_.pp_instance(),
key_system_var.pp_var(),
session_id_var.pp_var());
}
}
void ContentDecryptor_Private::KeyMessage(const std::string& key_system,
const std::string& session_id,
pp::Buffer_Dev message,
const std::string& default_url) {
if (has_interface<PPB_ContentDecryptor_Private>()) {
pp::Var key_system_var(key_system);
pp::Var session_id_var(session_id);
pp::Var default_url_var(default_url);
get_interface<PPB_ContentDecryptor_Private>()->KeyMessage(
associated_instance_.pp_instance(),
key_system_var.pp_var(),
session_id_var.pp_var(),
message.pp_resource(),
default_url_var.pp_var());
}
}
void ContentDecryptor_Private::KeyError(const std::string& key_system,
const std::string& session_id,
int32_t media_error,
int32_t system_code) {
if (has_interface<PPB_ContentDecryptor_Private>()) {
pp::Var key_system_var(key_system);
pp::Var session_id_var(session_id);
get_interface<PPB_ContentDecryptor_Private>()->KeyError(
associated_instance_.pp_instance(),
key_system_var.pp_var(),
session_id_var.pp_var(),
media_error,
system_code);
}
}
void ContentDecryptor_Private::DeliverBlock(
pp::Buffer_Dev decrypted_block,
const PP_DecryptedBlockInfo& decrypted_block_info) {
if (has_interface<PPB_ContentDecryptor_Private>()) {
get_interface<PPB_ContentDecryptor_Private>()->DeliverBlock(
associated_instance_.pp_instance(),
decrypted_block.pp_resource(),
&decrypted_block_info);
}
}
void ContentDecryptor_Private::DeliverFrame(
pp::Buffer_Dev decrypted_frame,
const PP_DecryptedBlockInfo& decrypted_block_info) {
if (has_interface<PPB_ContentDecryptor_Private>()) {
get_interface<PPB_ContentDecryptor_Private>()->DeliverFrame(
associated_instance_.pp_instance(),
decrypted_frame.pp_resource(),
&decrypted_block_info);
}
}
void ContentDecryptor_Private::DeliverSamples(
pp::Buffer_Dev decrypted_samples,
const PP_DecryptedBlockInfo& decrypted_block_info) {
if (has_interface<PPB_ContentDecryptor_Private>()) {
get_interface<PPB_ContentDecryptor_Private>()->DeliverSamples(
associated_instance_.pp_instance(),
decrypted_samples.pp_resource(),
&decrypted_block_info);
}
}
} // namespace pp
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