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// Copyright (c) 2012 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 "net/cert/x509_cert_types.h"
#include <cstdlib>
#include <cstring>
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_piece.h"
#include "base/time/time.h"
#include "net/cert/x509_certificate.h"
namespace net {
namespace {
// Helper for ParseCertificateDate. |*field| must contain at least
// |field_len| characters. |*field| will be advanced by |field_len| on exit.
// |*ok| is set to false if there is an error in parsing the number, but left
// untouched otherwise. Returns the parsed integer.
int ParseIntAndAdvance(const char** field, size_t field_len, bool* ok) {
int result = 0;
*ok &= base::StringToInt(base::StringPiece(*field, field_len), &result);
*field += field_len;
return result;
}
}
CertPrincipal::CertPrincipal() {
}
CertPrincipal::CertPrincipal(const std::string& name) : common_name(name) {}
CertPrincipal::~CertPrincipal() {
}
std::string CertPrincipal::GetDisplayName() const {
if (!common_name.empty())
return common_name;
if (!organization_names.empty())
return organization_names[0];
if (!organization_unit_names.empty())
return organization_unit_names[0];
return std::string();
}
bool ParseCertificateDate(const base::StringPiece& raw_date,
CertDateFormat format,
base::Time* time) {
size_t year_length = format == CERT_DATE_FORMAT_UTC_TIME ? 2 : 4;
if (raw_date.length() < 11 + year_length)
return false;
const char* field = raw_date.data();
bool valid = true;
base::Time::Exploded exploded = {0};
exploded.year = ParseIntAndAdvance(&field, year_length, &valid);
exploded.month = ParseIntAndAdvance(&field, 2, &valid);
exploded.day_of_month = ParseIntAndAdvance(&field, 2, &valid);
exploded.hour = ParseIntAndAdvance(&field, 2, &valid);
exploded.minute = ParseIntAndAdvance(&field, 2, &valid);
exploded.second = ParseIntAndAdvance(&field, 2, &valid);
if (valid && year_length == 2)
exploded.year += exploded.year < 50 ? 2000 : 1900;
valid &= exploded.HasValidValues();
if (!valid)
return false;
*time = base::Time::FromUTCExploded(exploded);
return true;
}
} // namespace net
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