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ldid.hpp
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ldid.hpp
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#ifndef LDID_HPP
#define LDID_HPP
/* SPDX-License-Identifier: AGPL-3.0-only */
#include <cstdlib>
#include <map>
#include <set>
#include <sstream>
#include <streambuf>
#include <string>
#include <vector>
namespace ldid {
// I wish Apple cared about providing quality toolchains :/
template <typename Function_>
class Functor;
template <typename Type_, typename... Args_>
class Functor<Type_ (Args_...)> {
public:
virtual Type_ operator ()(Args_... args) const = 0;
};
template <typename Function_>
class FunctorImpl;
template <typename Value_, typename Type_, typename... Args_>
class FunctorImpl<Type_ (Value_::*)(Args_...) const> :
public Functor<Type_ (Args_...)>
{
private:
const Value_ *value_;
public:
FunctorImpl(const Value_ &value) :
value_(&value)
{
}
virtual Type_ operator ()(Args_... args) const {
return (*value_)(args...);
}
};
template <typename Function_>
FunctorImpl<decltype(&Function_::operator())> fun(const Function_ &value) {
return value;
}
struct Progress {
virtual void operator()(const std::string &value) const = 0;
virtual void operator()(double value) const = 0;
};
class Folder {
public:
virtual void Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) = 0;
virtual bool Look(const std::string &path) const = 0;
virtual void Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const = 0;
virtual void Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const = 0;
};
class DiskFolder :
public Folder
{
private:
const std::string path_;
std::map<std::string, std::string> commit_;
protected:
std::string Path(const std::string &path) const;
private:
void Find(const std::string &root, const std::string &base, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const;
public:
DiskFolder(const std::string &path);
~DiskFolder();
virtual void Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code);
virtual bool Look(const std::string &path) const;
virtual void Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const;
virtual void Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const;
};
class SubFolder :
public Folder
{
private:
Folder &parent_;
std::string path_;
public:
SubFolder(Folder &parent, const std::string &path);
std::string Path(const std::string &path) const;
virtual void Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code);
virtual bool Look(const std::string &path) const;
virtual void Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const;
virtual void Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const;
};
class UnionFolder :
public Folder
{
private:
struct Reset {
const void *flag_;
std::streambuf *data_;
};
Folder &parent_;
std::set<std::string> deletes_;
std::map<std::string, std::string> remaps_;
mutable std::map<std::string, Reset> resets_;
std::string Map(const std::string &path) const;
void Map(const std::string &path, const Functor<void (const std::string &)> &code, const std::string &file, const Functor<void (const Functor<void (std::streambuf &, size_t, const void *)> &)> &save) const;
public:
UnionFolder(Folder &parent);
virtual void Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code);
virtual bool Look(const std::string &path) const;
virtual void Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const;
virtual void Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const;
void operator ()(const std::string &from) {
deletes_.insert(from);
}
void operator ()(const std::string &from, const std::string &to) {
operator ()(from);
remaps_[to] = from;
}
void operator ()(const std::string &from, const void *flag, std::streambuf &data) {
operator ()(from);
auto &reset(resets_[from]);
reset.flag_ = flag;
reset.data_ = &data;
}
};
struct Hash {
uint8_t sha1_[0x14];
uint8_t sha256_[0x20];
};
struct Bundle {
std::string path;
Hash hash;
};
Bundle Sign(const std::string &root, Folder &folder, const std::string &key, const std::string &requirements, const Functor<std::string (const std::string &, const std::string &)> &alter, bool merge, uint8_t platform, const Progress &progress);
typedef std::map<uint32_t, Hash> Slots;
Hash Sign(const void *idata, size_t isize, std::streambuf &output, const std::string &identifier, const std::string &entitlements, bool merge, const std::string &requirements, const std::string &key, const Slots &slots, uint32_t flags, uint8_t platform, const Progress &progress);
}
#endif//LDID_HPP