8e79f2ee9c
Based on Nekogram. Key additions: - Rebrand to FoxiGram (app name, APK name, applicationId com.foxigram.app) - Embedded Xray (VLESS+Reality) proxy client via JNI libxray.so - Bundled hidden one-tap proxies (LTE + WiFi), read-only in UI - Auto-restore proxy on restart, rebind to active network (LTE/WiFi) - Server credentials externalized to git-ignored XrayServers.java (+ template) - libxray Go source included; compiled .so, keystore, google-services.json ignored
96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
// Copyright 2011 The Chromium Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef BSSL_PKI_PEM_H_
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#define BSSL_PKI_PEM_H_
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#include <stddef.h>
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#include <string>
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#include <string_view>
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#include <vector>
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#include <openssl/base.h>
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BSSL_NAMESPACE_BEGIN
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// PEMTokenizer is a utility class for the parsing of data encapsulated
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// using RFC 1421, Privacy Enhancement for Internet Electronic Mail. It
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// does not implement the full specification, most notably it does not
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// support the Encapsulated Header Portion described in Section 4.4.
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class OPENSSL_EXPORT PEMTokenizer {
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public:
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// Create a new PEMTokenizer that iterates through |str| searching for
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// instances of PEM encoded blocks that are of the |allowed_block_types|.
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// |str| must remain valid for the duration of the PEMTokenizer.
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PEMTokenizer(std::string_view str,
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const std::vector<std::string> &allowed_block_types);
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PEMTokenizer(const PEMTokenizer &) = delete;
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PEMTokenizer &operator=(const PEMTokenizer &) = delete;
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~PEMTokenizer();
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// Attempts to decode the next PEM block in the string. Returns false if no
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// PEM blocks can be decoded. The decoded PEM block will be available via
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// data().
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bool GetNext();
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// Returns the PEM block type (eg: CERTIFICATE) of the last successfully
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// decoded PEM block.
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// GetNext() must have returned true before calling this method.
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const std::string &block_type() const { return block_type_; }
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// Returns the raw, Base64-decoded data of the last successfully decoded
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// PEM block.
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// GetNext() must have returned true before calling this method.
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const std::string &data() const { return data_; }
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private:
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void Init(std::string_view str,
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const std::vector<std::string> &allowed_block_types);
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// A simple cache of the allowed PEM header and footer for a given PEM
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// block type, so that it is only computed once.
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struct PEMType;
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// The string to search, which must remain valid for as long as this class
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// is around.
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std::string_view str_;
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// The current position within |str_| that searching should begin from,
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// or std::string_view::npos if iteration is complete
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std::string_view::size_type pos_;
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// The type of data that was encoded, as indicated in the PEM
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// Pre-Encapsulation Boundary (eg: CERTIFICATE, PKCS7, or
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// PRIVACY-ENHANCED MESSAGE).
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std::string block_type_;
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// The types of PEM blocks that are allowed. PEM blocks that are not of
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// one of these types will be skipped.
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std::vector<PEMType> block_types_;
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// The raw (Base64-decoded) data of the last successfully decoded block.
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std::string data_;
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};
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// Encodes |data| in the encapsulated message format described in RFC 1421,
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// with |type| as the PEM block type (eg: CERTIFICATE).
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OPENSSL_EXPORT std::string PEMEncode(std::string_view data,
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const std::string &type);
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BSSL_NAMESPACE_END
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#endif // BSSL_PKI_PEM_H_
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