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83 lines
2.9 KiB
83 lines
2.9 KiB
// Copyright 2014 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef LIBBRILLO_BRILLO_DATA_ENCODING_H_
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#define LIBBRILLO_BRILLO_DATA_ENCODING_H_
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#include <string>
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#include <utility>
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#include <vector>
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#include <brillo/brillo_export.h>
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#include <brillo/secure_blob.h>
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namespace brillo {
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namespace data_encoding {
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using WebParamList = std::vector<std::pair<std::string, std::string>>;
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// Encode/escape string to be used in the query portion of a URL.
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// If |encodeSpaceAsPlus| is set to true, spaces are encoded as '+' instead
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// of "%20"
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BRILLO_EXPORT std::string UrlEncode(const char* data, bool encodeSpaceAsPlus);
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inline std::string UrlEncode(const char* data) {
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return UrlEncode(data, true);
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}
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// Decodes/unescapes a URL. Replaces all %XX sequences with actual characters.
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// Also replaces '+' with spaces.
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BRILLO_EXPORT std::string UrlDecode(const char* data);
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// Converts a list of key-value pairs into a string compatible with
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// 'application/x-www-form-urlencoded' content encoding.
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BRILLO_EXPORT std::string WebParamsEncode(const WebParamList& params,
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bool encodeSpaceAsPlus);
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inline std::string WebParamsEncode(const WebParamList& params) {
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return WebParamsEncode(params, true);
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}
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// Parses a string of '&'-delimited key-value pairs (separated by '=') and
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// encoded in a way compatible with 'application/x-www-form-urlencoded'
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// content encoding.
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BRILLO_EXPORT WebParamList WebParamsDecode(const std::string& data);
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// Encodes binary data using base64-encoding.
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BRILLO_EXPORT std::string Base64Encode(const void* data, size_t size);
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// Encodes binary data using base64-encoding and wraps lines at 64 character
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// boundary using LF as required by PEM (RFC 1421) specification.
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BRILLO_EXPORT std::string Base64EncodeWrapLines(const void* data, size_t size);
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// Decodes the input string from Base64.
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BRILLO_EXPORT bool Base64Decode(const std::string& input, brillo::Blob* output);
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// Helper wrappers to use std::string and brillo::Blob as binary data
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// containers.
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inline std::string Base64Encode(const brillo::Blob& input) {
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return Base64Encode(input.data(), input.size());
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}
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inline std::string Base64EncodeWrapLines(const brillo::Blob& input) {
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return Base64EncodeWrapLines(input.data(), input.size());
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}
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inline std::string Base64Encode(const std::string& input) {
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return Base64Encode(input.data(), input.size());
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}
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inline std::string Base64EncodeWrapLines(const std::string& input) {
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return Base64EncodeWrapLines(input.data(), input.size());
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}
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inline bool Base64Decode(const std::string& input, std::string* output) {
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brillo::Blob blob;
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if (!Base64Decode(input, &blob))
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return false;
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*output = std::string{blob.begin(), blob.end()};
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return true;
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}
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} // namespace data_encoding
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} // namespace brillo
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#endif // LIBBRILLO_BRILLO_DATA_ENCODING_H_
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