Sanitize data before providing it to the CDM

media/cdm/json_web_key.h

 // 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.
 
 #ifndef MEDIA_CDM_JSON_WEB_KEY_H_
 #define MEDIA_CDM_JSON_WEB_KEY_H_
 
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 42 matching lines @@
 
 // Vector of [key_id, key_value] pairs. Values are raw binary data, stored in
 // strings for convenience.
 typedef std::pair<std::string, std::string> KeyIdAndKeyPair;
 typedef std::vector<KeyIdAndKeyPair> KeyIdAndKeyPairs;
 
 // Converts a single |key|, |key_id| pair to a JSON Web Key Set.
 MEDIA_EXPORT std::string GenerateJWKSet(const uint8* key, int key_length,
                                         const uint8* key_id, int key_id_length);
 
+// Converts a set of |key|, |key_id| pairs to a JSON Web Key Set.
+MEDIA_EXPORT std::string GenerateJWKSet(const KeyIdAndKeyPairs& keys,
+                                        MediaKeys::SessionType session_type);
+
 // Extracts the JSON Web Keys from a JSON Web Key Set. If |input| looks like
 // a valid JWK Set, then true is returned and |keys| and |session_type| are
 // updated to contain the values found. Otherwise return false.
 MEDIA_EXPORT bool ExtractKeysFromJWKSet(const std::string& jwk_set,
                                         KeyIdAndKeyPairs* keys,
                                         MediaKeys::SessionType* session_type);
 
 // Extracts the Key Ids from a Key IDs Initialization Data
 // (https://w3c.github.io/encrypted-media/keyids-format.html). If |input| looks
 // valid, then true is returned and |key_ids| is updated to contain the values
@@ skipping 16 matching lines @@
 // Extract the first key from the license request message. Returns true if
 // |license| is a valid license request and contains at least one key,
 // otherwise false and |first_key| is not touched.
 MEDIA_EXPORT bool ExtractFirstKeyIdFromLicenseRequest(
     const std::vector<uint8>& license,
     std::vector<uint8>* first_key);
 
 }  // namespace media
 
 #endif  // MEDIA_CDM_JSON_WEB_KEY_H_