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//
// Distributed under the terms of the BSD 3-Clause License.
//
// The full license is in the file LICENSE, distributed with this software.
#ifndef MAMBA_VALIDATION_ERRORS_HPP
#define MAMBA_VALIDATION_ERRORS_HPP
#include <exception>
#include <string>
#include <string_view>
namespace mamba::validation
{
/**
* Base class for artifact/package verification error.
*/
class trust_error : public std::exception
{
public:
trust_error(std::string_view message);
~trust_error() override = default;
[[nodiscard]] auto what() const noexcept -> const char* override;
private:
std::string m_message;
};
/**
* Error raised when a threshold of signatures is not met.
*
* This can be due to wrong signatures, wrong or missing public keys.
*/
class threshold_error : public trust_error
{
public:
threshold_error();
~threshold_error() override = default;
};
/**
* Error raised when wrong metadata are spotted
* in a role file.
*/
class role_metadata_error : public trust_error
{
public:
role_metadata_error();
~role_metadata_error() override = default;
};
/**
* Error raised when a wrong file name is
* detected for role metadata.
*/
class role_file_error : public trust_error
{
public:
role_file_error();
~role_file_error() override = default;
};
/**
* Error raised when a possible rollback attack is detected.
*/
class rollback_error : public trust_error
{
public:
rollback_error();
~rollback_error() override = default;
};
/**
* Error raised when a possible freeze attack is detected.
*/
class freeze_error : public trust_error
{
public:
freeze_error();
~freeze_error() override = default;
};
/**
* Error raised when a spec version is either wrong/invalid or not supported by the client.
*/
class spec_version_error : public trust_error
{
public:
spec_version_error();
~spec_version_error() override = default;
};
/**
* Error raised when a role metadata file fetching process fails.
*/
class fetching_error : public trust_error
{
public:
fetching_error();
~fetching_error() override = default;
};
/**
* Error raised when signatures threshold is not met for a package.
*/
class package_error : public trust_error
{
public:
package_error();
~package_error() override = default;
};
/**
* Error raised when signatures threshold is not met for a trust role.
*/
class role_error : public trust_error
{
public:
role_error();
~role_error() override = default;
};
/**
* Error raised when an invalid package index is met.
*/
class index_error : public trust_error
{
public:
index_error();
~index_error() override = default;
};
/**
* Error raised when the given signatures of a package are empty/invalid.
*/
class signatures_error : public trust_error
{
public:
signatures_error();
~signatures_error() override = default;
};
}
#endif
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