ldid.hpp

   1 #ifndef LDID_HPP
   2 #define LDID_HPP
   3
   4 #include <cstdlib>
   5 #include <map>
   6 #include <streambuf>
   7 #include <string>
   8
   9 namespace ldid {
  10
  11 // I wish Apple cared about providing quality toolchains :/
  12
  13 template <typename Function_>
  14 class Functor;
  15
  16 template <typename Type_, typename... Args_>
  17 class Functor<Type_ (Args_...)> {
  18   public:
  19     virtual Type_ operator ()(Args_... args) const = 0;
  20 };
  21
  22 template <typename Function_>
  23 class FunctorImpl;
  24
  25 template <typename Value_, typename Type_, typename... Args_>
  26 class FunctorImpl<Type_ (Value_::*)(Args_...) const> :
  27     public Functor<Type_ (Args_...)>
  28 {
  29   private:
  30     const Value_ *value_;
  31
  32   public:
  33     FunctorImpl(const Value_ &value) :
  34         value_(&value)
  35     {
  36     }
  37
  38     virtual Type_ operator ()(Args_... args) const {
  39         return (*value_)(args...);
  40     }
  41 };
  42
  43 template <typename Function_>
  44 FunctorImpl<decltype(&Function_::operator())> fun(const Function_ &value) {
  45     return value;
  46 }
  47
  48 class Folder {
  49   public:
  50     virtual void Save(const std::string &path, const Functor<void (std::streambuf &)> &code) = 0;
  51     virtual bool Open(const std::string &path, const Functor<void (std::streambuf &)> &code) = 0;
  52     virtual void Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code) = 0;
  53 };
  54
  55 class DiskFolder :
  56     public Folder
  57 {
  58   private:
  59     const std::string path_;
  60     std::map<std::string, std::string> commit_;
  61
  62     std::string Path(const std::string &path);
  63
  64     void Find(const std::string &root, const std::string &base, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)>&code);
  65
  66   public:
  67     DiskFolder(const std::string &path);
  68     ~DiskFolder();
  69
  70     virtual void Save(const std::string &path, const Functor<void (std::streambuf &)> &code);
  71     virtual bool Open(const std::string &path, const Functor<void (std::streambuf &)> &code);
  72     virtual void Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code);
  73 };
  74
  75 class SubFolder :
  76     public Folder
  77 {
  78   private:
  79     Folder &parent_;
  80     std::string path_;
  81
  82   public:
  83     SubFolder(Folder &parent, const std::string &path);
  84
  85     virtual void Save(const std::string &path, const Functor<void (std::streambuf &)> &code);
  86     virtual bool Open(const std::string &path, const Functor<void (std::streambuf &)> &code);
  87     virtual void Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code);
  88 };
  89
  90 class UnionFolder :
  91     public Folder
  92 {
  93   private:
  94     class StringBuffer :
  95         public std::stringbuf
  96     {
  97       public:
  98         StringBuffer() {
  99         }
 100
 101         StringBuffer(const StringBuffer &rhs) :
 102             std::stringbuf(rhs.str())
 103         {
 104         }
 105     };
 106
 107     Folder &parent_;
 108     std::map<std::string, StringBuffer> files_;
 109
 110   public:
 111     UnionFolder(Folder &parent);
 112
 113     virtual void Save(const std::string &path, const Functor<void (std::streambuf &)> &code);
 114     virtual bool Open(const std::string &path, const Functor<void (std::streambuf &)> &code);
 115     virtual void Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code);
 116
 117     std::stringbuf &operator [](const std::string &path) {
 118         return files_[path];
 119     }
 120 };
 121
 122 std::string Bundle(const std::string &root, Folder &folder, const std::string &key, std::map<std::string, std::vector<char>> &remote, const std::string &entitlements);
 123
 124 typedef std::map<uint32_t, std::vector<char>> Slots;
 125
 126 void Sign(const void *idata, size_t isize, std::streambuf &output, const std::string &identifier, const std::string &entitlements, const std::string &key, const Slots &slots);
 127
 128 }
 129
 130 #endif//LDID_HPP