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// Copyright 2016 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 <string>
#include <vector>
#include "base/files/file_path.h"
// Stores DER certificate bytes and details about where they were read from.
// This allows decoupling the input file reading from the certificate parsing
// while retaining useful error messages.
struct CertInput {
// DER-encoded certificate data. This is not validated.
std::string der_cert;
// The source file the data was read from.
base::FilePath source_file_path;
// Human-readable details about the source of the data, for logging purposes.
// For example, if the |source_file_path| contained multiple certificates,
// this might indicate which part of the file |der_cert| came from.
std::string source_details;
// Parses |file_path| as a single DER cert or a PEM certificate list.
bool ReadCertificatesFromFile(const base::FilePath& file_path,
std::vector<CertInput>* certs);
// Parses |file_path| as a DER cert or PEM chain. If more than one cert is
// present, the first will be used as the target certificate and the rest will
// be used as intermediates. Returns true on success. Note if the input
// contains no certificates then the return value is true however
// nothing is written to |target| or |intermediates|.
bool ReadChainFromFile(const base::FilePath& file_path,
CertInput* target,
std::vector<CertInput>* intermediates);
// Reads from a file and prints an error message if it failed.
bool ReadFromFile(const base::FilePath& file_path, std::string* file_data);
// Writes a file and prints an error message if it failed.
bool WriteToFile(const base::FilePath& file_path, const std::string& data);
// Prints an error about the input |cert|. This will include the file the cert
// was read from, as well as which block in the file if it was a PEM file.
void PrintCertError(const std::string& error, const CertInput& cert);