Update Clear Key to support keyids formatted init_data

media/cdm/json_web_key_unittest.cc

 // 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 "media/cdm/json_web_key.h"
 
 #include "base/base64.h"
 #include "base/logging.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 42 matching lines @@
   }
 
   void ExtractKeyFromLicenseAndExpect(const std::string& license,
                                       bool expected_result,
                                       const uint8* expected_key,
                                       int expected_key_length) {
     std::vector<uint8> license_vector(license.begin(), license.end());
     std::vector<uint8> key;
     EXPECT_EQ(expected_result,
               ExtractFirstKeyIdFromLicenseRequest(license_vector, &key));
-    if (expected_result) {
-      std::vector<uint8> key_result(expected_key,
-                                    expected_key + expected_key_length);
-      EXPECT_EQ(key_result, key);
-    }
+    if (expected_result)
+      VerifyKeyId(key, expected_key, expected_key_length);
+  }
+
+  void VerifyKeyId(std::vector<uint8> key,
+                   const uint8* expected_key,
+                   int expected_key_length) {
+    std::vector<uint8> key_result(expected_key,
+                                  expected_key + expected_key_length);
+    EXPECT_EQ(key_result, key);
   }
 };
 
 TEST_F(JSONWebKeyTest, GenerateJWKSet) {
   const uint8 data1[] = { 0x01, 0x02 };
   const uint8 data2[] = { 0x01, 0x02, 0x03, 0x04 };
   const uint8 data3[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
                           0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10 };
 
   EXPECT_EQ(
@@ skipping 434 matching lines @@
   key_ids.push_back(std::vector<uint8>(data2, data2 + arraysize(data2)));
   key_ids.push_back(std::vector<uint8>(data3, data3 + arraysize(data3)));
   CreateLicenseRequest(key_ids, MediaKeys::TEMPORARY_SESSION, &result);
   std::string s(result.begin(), result.end());
   EXPECT_EQ(
       "{\"kids\":[\"AQI\",\"AQIDBA\",\"AQIDBAUGBwgJCgsMDQ4PEA\"],\"type\":"
       "\"temporary\"}",
       s);
 }
 
+TEST_F(JSONWebKeyTest, ExtractKeyIds) {
+  const uint8 data1[] = { 0x01, 0x02 };
+  const uint8 data2[] = { 0x01, 0x02, 0x03, 0x04 };
+  const uint8 data3[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+                          0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10 };
+
+  KeyIdList key_ids;
+  std::string error_message;
+
+  EXPECT_TRUE(ExtractKeyIdsFromKeyIdsInitData("{\"kids\":[\"AQI\"]}", &key_ids,
+                                              &error_message));
+  EXPECT_EQ(1u, key_ids.size());
+  EXPECT_EQ(0u, error_message.length());
+  VerifyKeyId(key_ids[0], data1, arraysize(data1));
+
+  EXPECT_TRUE(ExtractKeyIdsFromKeyIdsInitData(
+      "{\"kids\":[\"AQI\",\"AQIDBA\",\"AQIDBAUGBwgJCgsMDQ4PEA\"]}", &key_ids,
+      &error_message));
+  EXPECT_EQ(3u, key_ids.size());
+  EXPECT_EQ(0u, error_message.length());
+  VerifyKeyId(key_ids[0], data1, arraysize(data1));
+  VerifyKeyId(key_ids[1], data2, arraysize(data2));
+  VerifyKeyId(key_ids[2], data3, arraysize(data3));
+
+  // Expect failure when non-ascii.
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData(
+      "This is not ASCII due to \xff\xfe\xfd in it.", &key_ids,
+      &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message,
+            "Non ASCII: This is not ASCII due to \xFF\xFE\xFD in it.");
+
+  // Expect failure when not JSON or not a dictionary.
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData("This is invalid.", &key_ids,
+                                               &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message, "Not valid JSON: This is invalid.");
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData("6", &key_ids, &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message, "Not valid JSON: 6");
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData(
+      "This is a very long string that is longer than 64 characters and is "
+      "invalid.",
+      &key_ids, &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message,
+            "Not valid JSON: This is a very long string that is longer than 64 "
+            "characters ...");
+
+  // Expect failure when "kids" not specified.
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData("{\"keys\":[\"AQI\"]}", &key_ids,
+                                               &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message, "Missing 'kids' parameter or not a list");
+
+  // Expect failure when invalid key_ids specified.
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData("{\"kids\":[1]}", &key_ids,
+                                               &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message, "'kids'[0] is not string.");
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData("{\"kids\": {\"id\":\"AQI\" }}",
+                                               &key_ids, &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message, "Missing 'kids' parameter or not a list");
+
+  // Expect failure when non-base64 key_ids specified.
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData("{\"kids\":[\"AQI+\"]}",
+                                               &key_ids, &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message,
+            "'kids'[0] is not valid base64url encoded. Value: AQI+");
+  EXPECT_FALSE(ExtractKeyIdsFromKeyIdsInitData("{\"kids\":[\"AQI\",\"AQI/\"]}",
+                                               &key_ids, &error_message));
+  EXPECT_EQ(3u, key_ids.size());  // |key_ids| should be unchanged.
+  EXPECT_EQ(error_message,
+            "'kids'[1] is not valid base64url encoded. Value: AQI/");
+}
+
 }  // namespace media