1 // Copyright 2015 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_BASE64URL_H_ 6 #define BASE_BASE64URL_H_ 7 8 #include <string> 9 10 #include "base/base_export.h" 11 #include "base/compiler_specific.h" 12 #include "base/macros.h" 13 #include "base/strings/string_piece.h" 14 15 namespace base { 16 17 enum class Base64UrlEncodePolicy { 18 // Include the trailing padding in the output, when necessary. 19 INCLUDE_PADDING, 20 21 // Remove the trailing padding from the output. 22 OMIT_PADDING 23 }; 24 25 // Encodes the |input| string in base64url, defined in RFC 4648: 26 // https://tools.ietf.org/html/rfc4648#section-5 27 // 28 // The |policy| defines whether padding should be included or omitted from the 29 // encoded |*output|. |input| and |*output| may reference the same storage. 30 BASE_EXPORT void Base64UrlEncode(const StringPiece& input, 31 Base64UrlEncodePolicy policy, 32 std::string* output); 33 34 enum class Base64UrlDecodePolicy { 35 // Require inputs contain trailing padding if non-aligned. 36 REQUIRE_PADDING, 37 38 // Accept inputs regardless of whether or not they have the correct padding. 39 IGNORE_PADDING, 40 41 // Reject inputs if they contain any trailing padding. 42 DISALLOW_PADDING 43 }; 44 45 // Decodes the |input| string in base64url, defined in RFC 4648: 46 // https://tools.ietf.org/html/rfc4648#section-5 47 // 48 // The |policy| defines whether padding will be required, ignored or disallowed 49 // altogether. |input| and |*output| may reference the same storage. 50 BASE_EXPORT bool Base64UrlDecode(const StringPiece& input, 51 Base64UrlDecodePolicy policy, 52 std::string* output) WARN_UNUSED_RESULT; 53 54 } // namespace base 55 56 #endif // BASE_BASE64URL_H_ 57
