Move base64-urlsafe helpers to jwk.{cc,h}

content/child/webcrypto/webcrypto_util.cc

 // Copyright 2014 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 "content/child/webcrypto/webcrypto_util.h"
 
-#include "base/base64.h"
 #include "base/logging.h"
-#include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "content/child/webcrypto/status.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
 #include "third_party/WebKit/public/platform/WebCryptoKeyAlgorithm.h"
 
 namespace content {
 
 namespace webcrypto {
 
@@ skipping 15 matching lines @@
     if (reverse_i >= sizeof(*result) && data[i])
       return false;  // Too large for a uint.
 
     *result |= data[i] << 8 * reverse_i;
   }
   return true;
 }
 
 }  // namespace
 
-// This function decodes unpadded 'base64url' encoded data, as described in
-// RFC4648 (http://www.ietf.org/rfc/rfc4648.txt) Section 5. To do this, first
-// change the incoming data to 'base64' encoding by applying the appropriate
-// transformation including adding padding if required, and then call a base64
-// decoder.
-bool Base64DecodeUrlSafe(const std::string& input, std::string* output) {
-  std::string base64EncodedText(input);
-  std::replace(base64EncodedText.begin(), base64EncodedText.end(), '-', '+');
-  std::replace(base64EncodedText.begin(), base64EncodedText.end(), '_', '/');
-  base64EncodedText.append((4 - base64EncodedText.size() % 4) % 4, '=');
-  return base::Base64Decode(base64EncodedText, output);
-}
-
-// Returns an unpadded 'base64url' encoding of the input data, using the
-// inverse of the process above.
-std::string Base64EncodeUrlSafe(const base::StringPiece& input) {
-  std::string output;
-  base::Base64Encode(input, &output);
-  std::replace(output.begin(), output.end(), '+', '-');
-  std::replace(output.begin(), output.end(), '/', '_');
-  output.erase(std::remove(output.begin(), output.end(), '='), output.end());
-  return output;
-}
-
-std::string Base64EncodeUrlSafe(const std::vector<uint8_t>& input) {
-  const base::StringPiece string_piece(
-      reinterpret_cast<const char*>(vector_as_array(&input)), input.size());
-  return Base64EncodeUrlSafe(string_piece);
-}
-
 struct JwkToWebCryptoUsage {
   const char* const jwk_key_op;
   const blink::WebCryptoKeyUsage webcrypto_usage;
 };
 
 // Keep this ordered according to the definition
 // order of WebCrypto's "recognized key usage
 // values".
 //
 // This is not required for spec compliance,
@@ skipping 213 matching lines @@
   // avoid feeding OpenSSL data that will hang use a whitelist.
   if (*public_exponent != 3 && *public_exponent != 65537)
     return Status::ErrorGenerateKeyPublicExponent();
 
   return Status::Success();
 }
 
 }  // namespace webcrypto
 
 }  // namespace content