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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <string.h>
#include <media/stagefright/foundation/AString.h>
#include <media/stagefright/foundation/base64.h>
#include <utils/String8.h>
#include <utils/Vector.h>
#include "InitDataParser.h"
namespace clearkeydrm {
using namespace android;
namespace {
const size_t kKeyIdSize = 16;
const String8 kCencType("cenc");
const String8 kWebMType("webm");
const String8 kBase64Padding("=");
}
class InitDataParserTest : public ::testing::Test {
protected:
status_t attemptParse(const Vector<uint8_t>& initData,
const String8& initDataType,
Vector<uint8_t>* licenseRequest) {
InitDataParser parser;
return parser.parse(initData, initDataType, licenseRequest);
}
void attemptParseExpectingSuccess(const Vector<uint8_t>& initData,
const String8& initDataType,
const Vector<String8>& expectedKeys) {
const String8 kRequestPrefix("{\"kids\":[");
const String8 kRequestSuffix("],\"type\":\"temporary\"}");
Vector<uint8_t> request;
ASSERT_EQ(android::OK, attemptParse(initData, initDataType, &request));
String8 requestString(reinterpret_cast<const char*>(request.array()),
request.size());
EXPECT_EQ(0, requestString.find(kRequestPrefix));
EXPECT_EQ(requestString.size() - kRequestSuffix.size(),
requestString.find(kRequestSuffix));
for (size_t i = 0; i < expectedKeys.size(); ++i) {
AString encodedIdAString;
android::encodeBase64(expectedKeys[i], kKeyIdSize,
&encodedIdAString);
String8 encodedId(encodedIdAString.c_str());
encodedId.removeAll(kBase64Padding);
EXPECT_TRUE(requestString.contains(encodedId));
}
}
void attemptParseExpectingFailure(const Vector<uint8_t>& initData,
const String8& initDataType) {
Vector<uint8_t> request;
ASSERT_NE(android::OK, attemptParse(initData, initDataType, &request));
EXPECT_EQ(0, request.size());
}
};
TEST_F(InitDataParserTest, ParsesSingleKeyPssh) {
uint8_t pssh[52] = {
0, 0, 0, 52, // Total Size
'p', 's', 's', 'h', // PSSH
1, 0, 0, 0, // Version
0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
0, 0, 0, 1, // Key Count
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, // "01234567890ABCDE"
0, 0, 0, 0 // Data Size (always 0)
};
Vector<uint8_t> initData;
initData.appendArray(pssh, 52);
Vector<String8> expectedKeys;
expectedKeys.push(String8("01234567890ABCDE"));
attemptParseExpectingSuccess(initData, kCencType, expectedKeys);
}
TEST_F(InitDataParserTest, ParsesMultipleKeyPssh) {
uint8_t pssh[84] = {
0, 0, 0, 84, // Total Size
'p', 's', 's', 'h', // PSSH
1, 0, 0, 0, // Version
0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
0, 0, 0, 3, // Key Count
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, // "01234567890ABCDE"
0x43, 0x6c, 0x65, 0x61, 0x72, 0x4b, 0x65, 0x79, // Key ID #2
0x43, 0x6c, 0x65, 0x61, 0x72, 0x4b, 0x65, 0x79, // "ClearKeyClearKey"
0x20, 0x47, 0x4f, 0x4f, 0x47, 0x4c, 0x45, 0x20, // Key ID #3
0x20, 0x47, 0x4f, 0x4f, 0x47, 0x4c, 0x45, 0x20, // " GOOGLE GOOGLE "
0, 0, 0, 0 // Data Size (always 0)
};
Vector<uint8_t> initData;
initData.appendArray(pssh, 84);
Vector<String8> expectedKeys;
expectedKeys.push(String8("01234567890ABCDE"));
expectedKeys.push(String8("ClearKeyClearKey"));
expectedKeys.push(String8(" GOOGLE GOOGLE "));
attemptParseExpectingSuccess(initData, kCencType, expectedKeys);
}
TEST_F(InitDataParserTest, ParsesWebM) {
uint8_t initDataRaw[16] = {
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID
0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, // "01234567890ABCDE"
};
Vector<uint8_t> initData;
initData.appendArray(initDataRaw, 16);
Vector<String8> expectedKeys;
expectedKeys.push(String8("01234567890ABCDE"));
attemptParseExpectingSuccess(initData, kWebMType, expectedKeys);
}
TEST_F(InitDataParserTest, FailsForPsshTooSmall) {
uint8_t pssh[16] = {
0, 0, 0, 52,
'p', 's', 's', 'h',
1, 0, 0, 0,
0x10, 0x77, 0xef, 0xec
};
Vector<uint8_t> initData;
initData.appendArray(pssh, 16);
attemptParseExpectingFailure(initData, kCencType);
}
TEST_F(InitDataParserTest, FailsForWebMTooSmall) {
uint8_t initDataRaw[8] = {
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37
};
Vector<uint8_t> initData;
initData.appendArray(initDataRaw, 8);
attemptParseExpectingFailure(initData, kWebMType);
}
TEST_F(InitDataParserTest, FailsForPsshBadSystemId) {
uint8_t pssh[52] = {
0, 0, 0, 52, // Total Size
'p', 's', 's', 'h', // PSSH
1, 0, 0, 0, // Version
0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b, // System ID
0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02,
0, 0, 0, 1, // Key Count
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, // "01234567890ABCDE"
0, 0, 0, 0 // Data Size (always 0)
};
Vector<uint8_t> initData;
initData.appendArray(pssh, 52);
attemptParseExpectingFailure(initData, kCencType);
}
TEST_F(InitDataParserTest, FailsForPsshBadSize) {
uint8_t pssh[52] = {
0, 0, 70, 200, // Total Size
'p', 's', 's', 'h', // PSSH
1, 0, 0, 0, // Version
0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
0, 0, 0, 1, // Key Count
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, // "01234567890ABCDE"
0, 0, 0, 0 // Data Size (always 0)
};
Vector<uint8_t> initData;
initData.appendArray(pssh, 52);
attemptParseExpectingFailure(initData, kCencType);
}
TEST_F(InitDataParserTest, FailsForPsshWrongVersion) {
uint8_t pssh[52] = {
0, 0, 0, 52, // Total Size
'p', 's', 's', 'h', // PSSH
0, 0, 0, 0, // Version
0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
0, 0, 0, 1, // Key Count
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, // "01234567890ABCDE"
0, 0, 0, 0 // Data Size (always 0)
};
Vector<uint8_t> initData;
initData.appendArray(pssh, 52);
attemptParseExpectingFailure(initData, kCencType);
}
TEST_F(InitDataParserTest, FailsForPsshBadKeyCount) {
uint8_t pssh[52] = {
0, 0, 0, 52, // Total Size
'p', 's', 's', 'h', // PSSH
1, 0, 0, 0, // Version
0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
0, 0, 0, 7, // Key Count
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, // "01234567890ABCDE"
0, 0, 0, 0 // Data Size (always 0)
};
Vector<uint8_t> initData;
initData.appendArray(pssh, 52);
attemptParseExpectingFailure(initData, kCencType);
}
} // namespace clearkeydrm
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