path-info.hh

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#pragma once
 
#include "lix/libstore/crypto.hh"
#include "lix/libstore/path.hh"
#include "lix/libutil/hash.hh"
#include "lix/libstore/content-address.hh"
 
#include <string>
#include <optional>
 
namespace nix {
 
 
class Store;
 
 
struct SubstitutablePathInfo
{
    std::optional<StorePath> deriver;
    StorePathSet references;
    uint64_t downloadSize;
    uint64_t narSize;
};
 
using SubstitutablePathInfos = std::map<StorePath, SubstitutablePathInfo>;
 
 
struct UnkeyedValidPathInfo
{
    std::optional<StorePath> deriver;
    Hash narHash;
    StorePathSet references;
    time_t registrationTime = 0;
    uint64_t narSize = 0; // 0 = unknown
    uint64_t id = 0; // internal use only

    bool ultimate = false;
 
    StringSet sigs; // note: not necessarily verified

    std::optional<ContentAddress> ca;
 
    UnkeyedValidPathInfo(const UnkeyedValidPathInfo & other) = default;
 
    UnkeyedValidPathInfo(Hash narHash) : narHash(narHash) { };
 
    DECLARE_CMP(UnkeyedValidPathInfo);
 
    virtual ~UnkeyedValidPathInfo() { }
};
 
struct ValidPathInfo : UnkeyedValidPathInfo {
    StorePath path;
 
    DECLARE_CMP(ValidPathInfo);

    std::string fingerprint(const Store & store) const;
 
    void sign(const Store & store, const SecretKey & secretKey);

    std::optional<ContentAddressWithReferences> contentAddressWithReferences() const;

    bool isContentAddressed(const Store & store) const;
 
    static const size_t maxSigs = std::numeric_limits<size_t>::max();

    size_t checkSignatures(const Store & store, const PublicKeys & publicKeys) const;

    bool checkSignature(const Store & store, const PublicKeys & publicKeys, const std::string & sig) const;
 
    Strings shortRefs() const;
 
    ValidPathInfo(const ValidPathInfo & other) = default;
 
    ValidPathInfo(StorePath && path, UnkeyedValidPathInfo info) : UnkeyedValidPathInfo(info), path(std::move(path)) { };
    ValidPathInfo(const StorePath & path, UnkeyedValidPathInfo info) : UnkeyedValidPathInfo(info), path(path) { };
 
    ValidPathInfo(const Store & store,
        std::string_view name, ContentAddressWithReferences && ca, Hash narHash);
 
    virtual ~ValidPathInfo() { }
};
 
using ValidPathInfos = std::map<StorePath, ValidPathInfo>;
 
}