1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 #include <functional>
21 #include <memory>
22 #include <string>
23
24 #include <openssl/bio.h>
25 #include <openssl/evp.h>
26
27 #include <thrift/Thrift.h>
28
29 using std::string;
30
31 namespace apache {
32 namespace thrift {
33 namespace transport {
34
base64Encode(unsigned char * data,int length)35 std::string base64Encode(unsigned char* data, int length) {
36 std::unique_ptr<BIO, std::function<void(BIO*)>> base64(BIO_new(BIO_f_base64()),
37 [](BIO* b) { BIO_free_all(b); });
38 BIO_set_flags(base64.get(), BIO_FLAGS_BASE64_NO_NL);
39
40 BIO* dest = BIO_new(BIO_s_mem());
41 BIO_push(base64.get(), dest);
42 BIO_write(base64.get(), data, length);
43 int ret = BIO_flush(base64.get());
44 THRIFT_UNUSED_VARIABLE(ret);
45
46 char* encoded;
47 length = BIO_get_mem_data(dest, &encoded);
48 return std::string(encoded, length);
49 }
50 } // namespace transport
51 } // namespace thrift
52 } // namespace apache
53