Repo created

TMessagesProj/jni/voip/webrtc/base/base64.cc

@@ -0,0 +1,44 @@
+// Copyright (c) 2012 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 "base/base64.h"
+
+#include <stddef.h>
+
+#include "third_party/modp_b64/modp_b64.h"
+
+namespace base {
+
+std::string Base64Encode(span<const uint8_t> input) {
+  std::string output;
+  output.resize(modp_b64_encode_len(input.size()));  // makes room for null byte
+
+  // modp_b64_encode_len() returns at least 1, so output[0] is safe to use.
+  const size_t output_size = modp_b64_encode(
+      &(output[0]), reinterpret_cast<const char*>(input.data()), input.size());
+
+  output.resize(output_size);
+  return output;
+}
+
+void Base64Encode(const StringPiece& input, std::string* output) {
+  *output = Base64Encode(base::as_bytes(base::make_span(input)));
+}
+
+bool Base64Decode(const StringPiece& input, std::string* output) {
+  std::string temp;
+  temp.resize(modp_b64_decode_len(input.size()));
+
+  // does not null terminate result since result is binary data!
+  size_t input_size = input.size();
+  size_t output_size = modp_b64_decode(&(temp[0]), input.data(), input_size);
+  if (output_size == MODP_B64_ERROR)
+    return false;
+
+  temp.resize(output_size);
+  output->swap(temp);
+  return true;
+}
+
+}  // namespace base