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/*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef RNP_SIGNATURE_HPP_
#define RNP_SIGNATURE_HPP_
#include <vector>
#include "librepgp/stream-sig.h"
#include "rawpacket.hpp"
namespace rnp {
class SigValidity {
std::vector<int> errors_; /* signature validation errors */
bool validated_;
public:
SigValidity() : validated_(false){};
const std::vector<int> &
errors() const noexcept
{
return errors_;
}
void
add_error(int err)
{
errors_.push_back(err);
}
/* signature doesn't have any validation problems and is validated */
bool
valid() const noexcept
{
return validated_ && errors_.empty();
}
bool
validated() const noexcept
{
return validated_;
}
void
mark_validated(rnp_result_t err = RNP_SUCCESS) noexcept
{
if (err) {
errors_.push_back(err);
}
validated_ = true;
}
void
reset(bool mark_valid = false)
{
errors_.clear();
validated_ = mark_valid;
}
bool
unknown() const noexcept
{
return (errors_.size() == 1) && (errors_[0] == RNP_ERROR_SIG_PARSE_ERROR);
}
bool
expired() const noexcept
{
bool res = false;
for (auto &err : errors_) {
/* only these two cases were used as expired value */
if ((err != RNP_ERROR_SIG_FROM_FUTURE) && (err != RNP_ERROR_SIG_EXPIRED)) {
return false;
}
res = true;
}
return res;
}
bool
no_signer() const noexcept
{
return (errors_.size() == 1) && (errors_[0] == RNP_ERROR_SIG_NO_SIGNER_KEY);
}
};
class SignatureInfo {
public:
bool signer_valid{}; /* assume that signing key is valid */
bool ignore_expiry{}; /* ignore signer's key expiration time */
bool ignore_sig_expiry{}; /* we ignore expiration for revocations */
pgp::pkt::Signature *sig{}; /* signature, or NULL if there were parsing error */
SigValidity validity;
};
class Signature {
public:
uint32_t uid{}; /* index in userid array in key for certification sig */
pgp::pkt::Signature sig{}; /* signature packet */
pgp::SigID sigid{}; /* signature identifier */
RawPacket raw; /* signature's rawpacket */
SigValidity validity; /* signature validity information */
Signature() = delete;
Signature(const pgp::pkt::Signature &sig);
/** @brief Returns true if signature is certification */
bool is_cert() const;
bool is_revocation() const;
/** @brief Returns true if signature is expired */
bool expired(uint64_t at) const;
};
class Revocation {
public:
uint32_t uid; /* index in uid array */
pgp_revocation_type_t code; /* revocation code */
std::string reason; /* revocation reason */
pgp::SigID sigid; /* id of the corresponding subsig */
Revocation() : uid(0), code(PGP_REVOCATION_NO_REASON), sigid(){};
Revocation(Signature &sig);
};
} // namespace rnp
#endif