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557 lines
16 KiB
557 lines
16 KiB
#include <iostream>
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#include <cctype>
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#include <pEp/pEpEngine.h>
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#include <pEp/message_api.h>
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#include <pEp/keymanagement.h>
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#include <pEp/identity_list.h>
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#include <pEp/utils.hh>
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#include <pEp/pEpLog.hh>
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#include <pEp/inspect.hh>
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#include <type_traits>
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namespace pEp {
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char* alloc_str(const std::string& str)
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{
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char* ret = strdup(str.c_str());
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pEpLog(CXX::Inspect::all(ret));
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return ret;
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}
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template<class T>
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void free(T ptr_type)
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{
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pEpLog(CXX::Inspect::all(ptr_type));
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::pEp_free(ptr_type);
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}
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template<>
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void free(char* ptr_type)
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{
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pEpLog(CXX::Inspect::all(ptr_type));
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::pEp_free(ptr_type);
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}
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template<>
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void free(::pEp_identity* ptr_type)
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{
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pEpLog(CXX::Inspect::all(ptr_type));
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::pEp_free(ptr_type);
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}
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//---------------------------------------------------------------------------------------------
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#define EXSTR(msg) std::string(__FUNCTION__) + " - " + msg
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template<class T>
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class POD {
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static_assert(std::is_pod<T>::value && !std::is_pointer<T>::value, "not an integral");
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public:
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POD() = delete;
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explicit POD(T* pod_p)
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{
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if (pod_p == nullptr) {
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throw Exception{ EXSTR("cant init on a nullptr") };
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}
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_pod_p = pod_p;
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pEpLogClass(to_string() + " - taking ownership");
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}
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// make a copy
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POD& operator=(T value)
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{
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pEpLogClass("Before: " + to_string() + " - new val: '" + CXX::Inspect::val(value) + "'");
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*_pod_p = value;
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pEpLogClass("After: " + to_string());
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return *this;
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}
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// return a copy
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operator T() const
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{
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return *_pod_p;
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}
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// return address of the wrappee
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T* data()
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{
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return _pod_p;
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}
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// return address of the wrappee (const)
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const T* c_data() const
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{
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return _pod_p;
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}
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std::string to_string() const
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{
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std::string ret{ "[" + CXX::Inspect::all(_pod_p) + "]" };
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return ret;
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}
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static bool log_enabled;
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private:
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T* _pod_p{ nullptr };
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Adapter::pEpLog::pEpLogger logger{ "pEp::POD", log_enabled };
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Adapter::pEpLog::pEpLogger& m4gic_logger_n4me = logger;
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class Exception : public std::runtime_error {
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public:
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explicit Exception(const std::string& msg) : std::runtime_error(msg) {}
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};
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};
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template<class T>
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bool pEp::POD<T>::log_enabled{ true };
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template<class T>
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std::ostream& operator<<(std::ostream& o, pEp::POD<T> pEpEnum)
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{
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return o << (int)pEpEnum;
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}
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//---------------------------------------------------------------------------------------------
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// Manages a char* to appear like a std::string
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// char* c_str
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// c_str MUST point to either:
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// * NULL - means there is no value/mem alloc yet
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// * dyn allocated memory
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// in case the mem is already allocated, there must be 2 modes
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// * take ownership (and free it)
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// * dont take ownership, only provide a C++ interface
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// There must be the option to construct the object before the wrapped c_str (char*)
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// is known. This leads to a pEp::String object in invalid state, and it must be initialized using
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// init(). Otherwise all(most) functions will throw.
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// init() can only be called once, will throw otherwise.
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// NON-owning mode, just does not free the string when it dies, owning mode does.
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// Thats the only difference.
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class String {
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public:
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String() = default;
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// Best to use this constructor, as the object is in a valid state when the wrapped
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// c_str (char*) is known
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String(bool take_ownership, char** c_str_pp)
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{
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init(take_ownership, c_str_pp);
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}
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explicit String(bool take_ownership, char** c_str_pp, const std::string& init_val)
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{
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init(take_ownership, c_str_pp, init_val);
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}
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~String()
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{
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if (_is_owning_mode) {
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_free();
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}
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}
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void init(bool take_ownership, char** c_str_pp, const std::string& init_val)
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{
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init(take_ownership, c_str_pp);
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this->operator=(init_val);
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}
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void init(bool take_ownership, char** c_str_pp)
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{
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if (c_str_pp == nullptr) {
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throw Exception{ EXSTR("cant init on a nullptr") };
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}
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if (_is_initialized) {
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throw Exception{ EXSTR("double initialization") };
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}
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// init
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_c_str_pp = c_str_pp;
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_c_str_p = *_c_str_pp;
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_is_initialized = true;
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_is_owning_mode = take_ownership;
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pEpLogClass(to_string() + " - init " + (take_ownership ? "/taking ownership" : ""));
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}
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// make a copy
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String& operator=(const std::string& str)
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{
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pEpLogClass("Before: " + to_string() + " - new val: '" + pEp::Utils::clip(str, 30) + "'");
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if (_c_str_pp == nullptr) {
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throw Exception{ EXSTR("invalid state") };
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}
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// DEALLOCATION
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_free();
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// ALLOCATION
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if (str.empty()) {
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// if the new value is empty str, lets point to nothing
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*_c_str_pp = nullptr;
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_c_str_p = *_c_str_pp;
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} else {
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*_c_str_pp = pEp::alloc_str(str);
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_c_str_p = *_c_str_pp;
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}
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pEpLogClass("After: " + to_string());
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return *this;
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}
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// return a copy of whatever c_str currently is (maybe created by us, maybe changed meanwhile)
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operator std::string() const
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{
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if (_c_str_pp == nullptr) {
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throw Exception{ EXSTR("invalid state") };
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}
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if (*_c_str_pp != nullptr) {
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return { *_c_str_pp };
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}
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return {};
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}
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char** data()
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{
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return _c_str_pp;
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}
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const char* c_data() const
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{
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if (_c_str_pp == nullptr) {
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throw Exception{ EXSTR("invalid state") };
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}
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return *_c_str_pp;
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}
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std::string to_string() const
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{
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if (_c_str_pp == nullptr) {
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throw Exception{ EXSTR("invalid state") };
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}
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std::string ret{ "[" + CXX::Inspect::all(_c_str_pp) + " / " +
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CXX::Inspect::all(*_c_str_pp) + "]" };
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return ret;
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}
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static bool log_enabled;
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private:
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// TODO: this is dodgy, do we really need _c_str_pp AND _c_str_p???
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void _free()
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{
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// if the c_str points to a different address now, than the one we created
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if (*_c_str_pp != _c_str_p) {
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// a new string has been created, and we need to free it as well
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pEpLog("raw access string change detected");
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pEp::free(*_c_str_pp);
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} else {
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// WE ASSUME THAT:
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// if the char* has been replaced, it has been freed, as well
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if (_c_str_p != nullptr) {
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pEp::free(_c_str_p);
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}
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}
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}
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bool _is_initialized{ false };
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bool _is_owning_mode{ false };
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char** _c_str_pp{ nullptr };
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char* _c_str_p{ nullptr };
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Adapter::pEpLog::pEpLogger logger{ "pEp::String", log_enabled };
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Adapter::pEpLog::pEpLogger& m4gic_logger_n4me = logger;
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class Exception : public std::runtime_error {
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public:
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explicit Exception(const std::string& msg) : std::runtime_error(msg) {}
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};
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};
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bool pEp::String::log_enabled{ true };
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std::ostream& operator<<(std::ostream& o, const pEp::String& pEpStr)
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{
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return o << std::string(pEpStr);
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}
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//---------------------------------------------------------------------------------------------
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// TOOD:
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// ctor not exception safe
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class Identity {
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public:
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Identity(
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const std::string& address = "",
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const std::string& username = "",
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const std::string& user_id = "",
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const std::string& fpr = "")
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{
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pEpLogClass("called");
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_wrappee = ::new_identity(nullptr, nullptr, nullptr, nullptr);
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// set the pEp::String wrapper underlying c_str
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this->address.init(true, &_wrappee->address, address);
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this->username.init(true, &_wrappee->username, username);
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this->user_id.init(true, &_wrappee->user_id, user_id);
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this->fpr.init(true, &_wrappee->fpr, fpr);
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}
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~Identity()
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{
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_free();
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}
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pEp::String address{};
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pEp::String username{};
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pEp::String user_id{};
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pEp::String fpr{};
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operator ::pEp_identity*()
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{
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return _wrappee;
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}
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static bool log_enabled;
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private:
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void _free()
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{
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// pEp::free(_wrappee);
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}
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::pEp_identity* _wrappee{ nullptr };
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Adapter::pEpLog::pEpLogger logger{ "IdentWrappySP", log_enabled };
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Adapter::pEpLog::pEpLogger& m4gic_logger_n4me = logger;
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};
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bool Identity::log_enabled{ true };
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} // namespace pEp
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::PEP_SESSION session;
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void test_getters(char** c_str_p, pEp::String& pstr, const std::string& expected)
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{
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pEpLog("to_string(): " + pstr.to_string());
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// compare addresses
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pEpLog("addresses == c_str_p");
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assert(pstr.c_data() == *c_str_p);
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assert(pstr.data() == c_str_p);
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// compare values
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if (*c_str_p != nullptr) {
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pEpLog("operator std::string(): " + std::string(pstr));
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assert(std::string(pstr) == std::string(*c_str_p));
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assert(std::string(pstr) == expected);
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// will segfault with nullptr, and this is correct
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pEpLog("data(): " + std::string(*pstr.data()));
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assert(std::string(*pstr.data()) == std::string(*c_str_p));
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assert(std::string(*pstr.data()) == expected);
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pEpLog("c_data(): " + std::string(pstr.c_data()));
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assert(std::string(pstr.c_data()) == std::string(*c_str_p));
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assert(std::string(pstr.c_data()) == expected);
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} else {
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std::string tmp{ pstr };
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pEpLog("operator std::string(): " + tmp);
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assert(tmp.empty());
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}
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}
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void test_assign(char** c_str_p, pEp::String& pstr)
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{
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{
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pEpLogH2("assign operator");
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std::string new_val{ "assign operator" };
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pstr = new_val;
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test_getters(c_str_p, pstr, new_val);
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}
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{
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pEpLogH2("raw c_str assign");
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std::string new_val{ "raw c_str assign" };
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free(*c_str_p);
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*c_str_p = strdup(new_val.c_str());
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test_getters(c_str_p, pstr, new_val);
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}
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}
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void test_getters(int* c_int_p, pEp::POD<int>& pint, int expected)
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{
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pEpLog("to_string(): " + pint.to_string());
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// compare addresses
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pEpLog("addresses == c_int_p");
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assert(pint.c_data() == c_int_p);
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assert(pint.data() == c_int_p);
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// compare values
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if (c_int_p != nullptr) {
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pEpLog("operator int(): " + std::to_string(pint));
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assert(pint == *c_int_p);
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assert(pint == expected);
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// will segfault with nullptr, and this is correct
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pEpLog("data(): " + std::to_string(*pint.data()));
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assert(*pint.data() == *c_int_p);
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assert(*pint.data() == expected);
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pEpLog("c_data(): " + std::to_string(*pint.c_data()));
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assert(*pint.c_data() == *c_int_p);
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assert(*pint.c_data() == expected);
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}
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}
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void test_assign(int* c_int_p, pEp::POD<int>& pint)
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{
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{
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pEpLogH2("assign operator");
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int new_val = 23;
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pint = new_val;
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test_getters(c_int_p, pint, new_val);
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}
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{
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pEpLogH2("raw c_str assign");
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int new_val = 23;
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*c_int_p = new_val;
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test_getters(c_int_p, pint, new_val);
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}
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}
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// We are testing wrappers for the c-datatypes:
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// * integral e.g (int) here
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// * enum
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// * c-string
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// * struct
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// Those are all considered POD-types
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extern "C" {
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typedef enum
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{
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ONE,
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TWO,
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THREE
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} Test_enum;
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typedef struct {
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int c_int;
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Test_enum c_enum;
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char* c_str;
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} Test_struct;
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}
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int main()
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{
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// c-types are always POD
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// we need to handle pointer types and value types differently
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// pointer types need to be memory-managed (heap)
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// value types are being copied around (stack)
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static_assert(std::is_pod<int>::value && !std::is_pointer<int>::value, "not an integral");
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static_assert(
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std::is_pod<Test_enum>::value && !std::is_pointer<Test_enum>::value,
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"not an integral");
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static_assert(
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std::is_pod<Test_struct>::value && !std::is_pointer<Test_struct>::value,
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"not an integral");
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// static_assert(std::is_pod<char*>::value && !std::is_pointer<char*>::value, "not an integral");
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// pEp::Utils::readKey();
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pEp::Adapter::pEpLog::set_enabled(true);
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// POD
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if (1) {
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// VALID USAGE
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int init_val = 0;
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// new pEp::POD on int
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{
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pEpLogH1("new pEp::POD on int");
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int c_int = init_val;
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pEp::POD<int> pint(&c_int);
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test_getters(&c_int, pint, init_val);
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test_assign(&c_int, pint);
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}
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}
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// String
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// pEp::String::log_enabled = false;
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if (0) {
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//TODO: Test non-owning mode
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// INVALID USAGE
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// char* c_str_u; // uninitialized == INVALID
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// undefined behaviour, most likely "pointer being freed was not allocated"
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// {
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// char* c_str;
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// pEp::String pstr(c_str);
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// }
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// char* c_str_s = "fdsfs"; // statically initialized == INVALID
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// {
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// char ca[4] = { 'p', 'E', 'p'};
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// char* c_str = ca;
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// pEp::String pstr(c_str);
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// }
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// VALID USAGE
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// new pEp::String on char* pointing to NULL
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{
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pEpLogH1("new pEp::String on char* pointing to NULL");
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char* c_str = NULL; // nullptr
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pEp::String pstr(true, &c_str);
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test_getters(&c_str, pstr, "");
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test_assign(&c_str, pstr);
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}
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std::string init_val{ "initialized c string" };
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// new pEp::String on already initalized char*
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{
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pEpLogH1("new pEp::String on already initalized char*");
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char* c_str = strdup(init_val.c_str());
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pEp::String pstr(true, &c_str);
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test_getters(&c_str, pstr, init_val);
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test_assign(&c_str, pstr);
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}
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// initialize()
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{
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pEpLogH1("init()");
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pEp::String pstr{};
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char* c_str = strdup(init_val.c_str());
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//TODO: PITYASSERT_THROWS
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pstr.init(true, &c_str);
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test_getters(&c_str, pstr, init_val);
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test_assign(&c_str, pstr);
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}
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}
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if (0) {
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setenv("HOME", ".", 1);
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::init(&session, nullptr, nullptr, nullptr);
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// create identity
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pEp::Identity id1{ "wrong@entry.lol", "wrong", "23", "INVA_FPR" };
|
|
|
|
pEpLog(id1);
|
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id1.username = "alice";
|
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id1.address = "alice@peptest.org";
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|
|
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pEpLog(id1.address);
|
|
pEpLog(id1.username);
|
|
::myself(session, id1);
|
|
pEpLog(id1);
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|
|
|
pEp::Identity id2{ "bob" };
|
|
::update_identity(session, id2);
|
|
pEpLog(id2);
|
|
}
|
|
}
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|