1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "base/base64/base64_util.h"
17
18 #include "include/core/SkData.h"
19 #include "include/utils/SkBase64.h"
20
21 namespace OHOS::Ace {
22
Decode(const std::string & src,std::string & dst)23 bool Base64Util::Decode(const std::string& src, std::string& dst)
24 {
25 #ifdef NG_BUILD
26 size_t outputLen = 0;
27 SkBase64::Error error = SkBase64::Decode(src.data(), src.size(), nullptr, &outputLen);
28 if (error != SkBase64::Error::kNoError) {
29 return false;
30 }
31
32 sk_sp<SkData> resData = SkData::MakeUninitialized(outputLen);
33 void* output = resData->writable_data();
34 error = SkBase64::Decode(src.data(), src.size(), output, &outputLen);
35 if (error != SkBase64::Error::kNoError) {
36 return false;
37 }
38 dst.assign(static_cast<const char*>(resData->data()), resData->size());
39 return true;
40 #else
41 SkBase64 base64Decoder;
42 SkBase64::Error error = base64Decoder.decode(src.data(), src.size());
43 if (error != SkBase64::kNoError) {
44 return false;
45 }
46 auto base64Data = base64Decoder.getData();
47 if (base64Data == nullptr) {
48 return false;
49 }
50 dst.assign(base64Data, base64Decoder.getDataSize());
51 // in SkBase64, the fData is not deleted after decoded.
52 delete[] base64Data;
53 base64Data = nullptr;
54 return true;
55 #endif
56 }
57
58 } // namespace OHOS::Ace
59