add memory safety

src/helper_funcs.cpp

@@ -1,5 +1,7 @@
 #include "helper_funcs.h"
 #include "color.h"
+#include "main.h"
+#include "memory.h"
 #include "net.h"
 #include <codecvt>
 #include <csignal>
@@ -13,7 +15,9 @@
 #include <string>
 #include <termios.h>
 #include <unistd.h>
-#include "main.h"
+#include <vector>
+
+std::vector<allocation> *current_allocated;
 
 void safe_exit(int code) {
   switch (code) {
@@ -38,6 +42,7 @@ void safe_exit(int code) {
   default:
     break;
   }
+  delete_all(current_allocated);
 
   curl_easy_cleanup(curl);
   endwin();
@@ -152,9 +157,11 @@ void wprint_in_middle(WINDOW *win, int starty, int startx, int width,
   x = startx + (int)temp;
   wattron(win, color);
   if (mvwaddwstr(win, y, x, string) == ERR) {
-    if(config.verbose){
+    if (config.verbose) {
-    std::wcerr << RED"[ERROR]"<< RESET" wprint_in_middle failed to print " << string << "\n";
+      std::wcerr << RED "[ERROR]" << RESET " wprint_in_middle failed to print "
-  }}
+                 << string << "\n";
+    }
+  }
   wattroff(win, color);
   refresh();
 }

src/helper_funcs.h

@@ -1,10 +1,14 @@
+#include "memory.h"
 #include <curses.h>
 #include <string>
+#include <vector>
 
 // header guard
 #ifndef _ba_hf_hg_
 #define _ba_hf_hg_
 
+extern std::vector<allocation> *current_allocated;
+
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
 
 void safe_exit(int code);

src/marks.cpp

@@ -1,5 +1,6 @@
 #include "marks.h"
 #include "helper_funcs.h"
+#include "memory.h"
 #include "net.h"
 #include <algorithm>
 #include <cstddef>
@@ -12,6 +13,7 @@
 #include <nlohmann/json.hpp>
 #include <panel.h>
 #include <string>
+#include <vector>
 
 using nlohmann::json;
 
@@ -27,23 +29,26 @@ using nlohmann::json;
 
 #define DEFAULT_PADDING 4
 
+std::vector<allocation> marks_allocated;
+
 void init_wins(WINDOW **wins, int n, json marks_json);
 void win_show(WINDOW *win, wchar_t *label, int label_color, int width,
               int height, json marks_json, int SubjectIndex);
 
 void marks_page() {
+  current_allocated = &marks_allocated;
   json resp_from_api;
   {
-  std::string endpoint = "api/3/marks";
+    std::string endpoint = "api/3/marks";
-  resp_from_api = bakaapi::get_data_from_endpoint(endpoint);
+    resp_from_api = bakaapi::get_data_from_endpoint(endpoint);
   }
-  WINDOW **my_wins;
   size_t size_my_wins = resp_from_api["Subjects"].size();
-  my_wins = new (std::nothrow) WINDOW *[size_my_wins];
+  WINDOW **my_wins = new (std::nothrow) WINDOW *[size_my_wins];
+  marks_allocated.push_back({WINDOW_ARRAY, my_wins, size_my_wins});
 
-  PANEL **my_panels;
   size_t size_my_panels = resp_from_api["Subjects"].size();
-  my_panels = new (std::nothrow) PANEL *[size_my_panels];
+  PANEL **my_panels = new (std::nothrow) PANEL *[size_my_panels];
+  marks_allocated.push_back({PANEL_ARRAY, my_panels, size_my_panels});
 
   // trows compiler warning for some reason but cannot be removed
   PANEL *top;
@@ -66,7 +71,9 @@ void marks_page() {
 
   // store all original window position
   int *original_y = new int[size_my_wins];
+  marks_allocated.push_back({GENERIC_ARRAY, original_y, size_my_wins});
   int *original_x = new int[size_my_wins];
+  marks_allocated.push_back({GENERIC_ARRAY, original_x, size_my_wins});
   for (size_t i = 0; i < size_my_wins; ++i) {
     getbegyx(my_wins[i], original_y[i], original_x[i]);
   }
@@ -121,10 +128,7 @@ void marks_page() {
   // Cleanup
   endwin();
   clear();
-  delete[] my_wins;
+  delete_all(&marks_allocated);
-  delete[] my_panels;
-  delete[] original_y;
-  delete[] original_x;
 }
 
 /* Put all the windows */
@@ -153,7 +157,9 @@ void init_wins(WINDOW **wins, int n, json marks_json) {
              wsub_name.c_str(), wsub_avg_s.c_str());
 
     size_t max_text_length = wcslen(label);
-    for (unsigned int j = 0; j < static_cast<unsigned int>(marks_json["Subjects"][i]["Marks"].size()); j++) {
+    for (unsigned int j = 0; j < static_cast<unsigned int>(
+                                     marks_json["Subjects"][i]["Marks"].size());
+         j++) {
       std::string caption =
           rm_tr_le_whitespace(marks_json["Subjects"][i]["Marks"][j]["Caption"]);
       std::string theme =
@@ -178,7 +184,10 @@ void init_wins(WINDOW **wins, int n, json marks_json) {
       MaxHight = 0;
     }
 
-    if (static_cast<unsigned int>(marks_json["Subjects"][i]["Marks"].size()) * 2 + DEFAULT_PADDING > MaxHight) {
+    if (static_cast<unsigned int>(marks_json["Subjects"][i]["Marks"].size()) *
+                2 +
+            DEFAULT_PADDING >
+        MaxHight) {
       MaxHight =
           marks_json["Subjects"][i]["Marks"].size() * 2 + DEFAULT_PADDING;
     }
@@ -196,8 +205,9 @@ void init_wins(WINDOW **wins, int n, json marks_json) {
 /* Show the window with a border and a label */
 void win_show(WINDOW *win, wchar_t *label, int label_color, int width,
               int height, json marks_json, int SubjectIndex) {
-  
+
-  // is the compiler smoking weed or something, why is it thinking starty is not used ??
+  // is the compiler smoking weed or something, why is it thinking starty is not
+  // used ??
   int startx, starty;
 
   wresize(win, height, width);

src/memory.cpp

@@ -0,0 +1,45 @@
+#include "memory.h"
+#include "color.h"
+#include <iostream>
+#include <ncurses.h>
+#include <panel.h>
+
+void delete_all(std::vector<allocation> *allocated) {
+  for (long long i = allocated->size() - 1; i >= 0; i--) {
+    switch (allocated->at(i).type) {
+    case WINDOW_ARRAY: {
+      WINDOW **windows = static_cast<WINDOW **>(allocated->at(i).ptr);
+      for (std::size_t j = 0; j < allocated->at(i).size; j++) {
+        delwin(windows[j]);
+      }
+      delete[] windows;
+      break;
+    }
+    case PANEL_ARRAY: {
+      PANEL **panels = static_cast<PANEL **>(allocated->at(i).ptr);
+      for (std::size_t j = 0; j < allocated->at(i).size; j++) {
+        del_panel(panels[j]);
+      }
+      delete[] panels;
+      break;
+    }
+    case GENERIC_ARRAY:
+      delete[] static_cast<char *>(allocated->at(i).ptr);
+      break;
+    case WINDOW_TYPE:
+      delwin(static_cast<WINDOW *>(allocated->at(i).ptr));
+      break;
+    case PANEL_TYPE:
+      del_panel(static_cast<PANEL *>(allocated->at(i).ptr));
+      break;
+    case GENERIC_TYPE:
+      delete static_cast<char *>(allocated->at(i).ptr);
+      break;
+    default:
+      std::cerr << RED "[!!CRITICAL!!]" << RESET " Unknown allocation type"
+                << "\n";
+      break;
+    }
+    allocated->pop_back();
+  }
+}

src/memory.h

@@ -0,0 +1,23 @@
+// header guard
+#ifndef _ba_me_hg_
+#define _ba_me_hg_
+
+#include <cstddef>
+#include <vector>
+enum AllocationType {
+  WINDOW_ARRAY,
+  PANEL_ARRAY,
+  GENERIC_ARRAY,
+  WINDOW_TYPE,
+  PANEL_TYPE,
+  GENERIC_TYPE
+};
+
+struct allocation {
+  AllocationType type;
+  void *ptr;
+  std::size_t size;
+};
+
+void delete_all(std::vector<allocation> *allocated);
+#endif

src/timetable.cpp

@@ -2,6 +2,7 @@
 #include "color.h"
 #include "const.h"
 #include "helper_funcs.h"
+#include "memory.h"
 #include "net.h"
 #include "types.h"
 #include <bits/chrono.h>
@@ -20,13 +21,13 @@
 #include <sys/types.h>
 #include <vector>
 
-
-
 using nlohmann::json;
 #define BOTTOM_PADDING 5
 
 #define DEFAULT_OFFSET 3
 
+std::vector<allocation> timetable_allocated;
+
 const wchar_t *day_abriviations[] = {nullptr, L"Mo", L"Tu", L"We",
                                      L"Th",   L"Fr", L"Sa", L"Su"};
 
@@ -87,20 +88,19 @@ json *find_atom_by_indexes(json &resp_from_api, uint8_t day_index,
 }
 
 void timetable_page() {
-	auto dateSelected = std::chrono::system_clock::now();
+  current_allocated = &timetable_allocated;
-  reload_for_new_week:
+  auto dateSelected = std::chrono::system_clock::now();
-	std::time_t date_time_t = std::chrono::system_clock::to_time_t(dateSelected);
+reload_for_new_week:
- 	std::tm local_time = *std::localtime(&date_time_t);
+  std::time_t date_time_t = std::chrono::system_clock::to_time_t(dateSelected);
-  
+  std::tm local_time = *std::localtime(&date_time_t);
 
-	std::stringstream date_stringstream;
+  std::stringstream date_stringstream;
-	date_stringstream << std::put_time(&local_time, "%Y-%m-%d");
+  date_stringstream << std::put_time(&local_time, "%Y-%m-%d");
 
-	std::string date_string = "date=" + date_stringstream.str();
+  std::string date_string = "date=" + date_stringstream.str();
   std::string endpoint = "api/3/timetable/actual";
 
-  json resp_from_api =
+  json resp_from_api = bakaapi::get_data_from_endpoint(endpoint, date_string);
-      bakaapi::get_data_from_endpoint(endpoint, date_string);
 
   // this may be unnecessary but i dont have enaugh data to test it
   // it sorts the hours by start time
@@ -111,6 +111,8 @@ void timetable_page() {
 
     Id_and_Start_time *temp_hour_sorting_array =
         new Id_and_Start_time[resp_from_api["Hours"].size()];
+    timetable_allocated.push_back({GENERIC_ARRAY, temp_hour_sorting_array,
+                                   resp_from_api["Hours"].size()});
 
     for (uint8_t i = 0; i < resp_from_api["Hours"].size(); i++) {
       temp_hour_sorting_array[i] = std::make_tuple(
@@ -155,6 +157,7 @@ void timetable_page() {
     }
 
     delete[] temp_hour_sorting_array;
+    timetable_allocated.pop_back();
   }
 
   // some lambda dark magic
@@ -194,7 +197,11 @@ void timetable_page() {
   const uint16_t cell_height = (LINES - BOTTOM_PADDING) / num_of_days;
 
   WINDOW **day_windows = new WINDOW *[num_of_days];
+  timetable_allocated.push_back({WINDOW_ARRAY, day_windows, num_of_days});
+
   WINDOW **lesson_windows = new WINDOW *[num_of_columns];
+  timetable_allocated.push_back({WINDOW_ARRAY, lesson_windows, num_of_columns});
+
   std::vector<std::vector<WINDOW *>> cells(
       num_of_days, std::vector<WINDOW *>(num_of_columns));
 
@@ -256,7 +263,11 @@ void timetable_page() {
 
       selector_windows[i] =
           newwin(1, 1, DEFAULT_OFFSET + y_offset, DEFAULT_OFFSET + x_offset);
+      timetable_allocated.push_back({WINDOW_TYPE, selector_windows[i], 1});
+
       selector_panels[i] = new_panel(selector_windows[i]);
+      timetable_allocated.push_back({PANEL_TYPE, selector_panels[i], 1});
+
       wattron(selector_windows[i], COLOR_PAIR(COLOR_RED));
       mvwaddch(selector_windows[i], 0, 0, corners[i]);
       wattroff(selector_windows[i], COLOR_PAIR(COLOR_RED));
@@ -264,45 +275,50 @@ void timetable_page() {
   }
   attron(COLOR_PAIR(COLOR_BLUE));
   mvprintw(LINES - 2, 0,
-           "Arrows/hjkl to select | ENTER to show info | p/n to select weeks |F1 to exit");
+           "Arrows/hjkl to select | ENTER to show info | p/n to select weeks "
+           "|F1 to exit");
   {
     std::tm end_week = local_time;
-std::tm start_week = local_time; 
+    std::tm start_week = local_time;
 
-// Convert tm_wday (0-6) to API day format (1-7)
+    // Convert tm_wday (0-6) to API day format (1-7)
-int current_wday = (local_time.tm_wday == 0) ? 7 : local_time.tm_wday;
+    int current_wday = (local_time.tm_wday == 0) ? 7 : local_time.tm_wday;
 
-// Get days of week from API (1-7 format where Monday is 1)
+    // Get days of week from API (1-7 format where Monday is 1)
-uint8_t start_day = resp_from_api["Days"][0]["DayOfWeek"].get<uint8_t>();
+    uint8_t start_day = resp_from_api["Days"][0]["DayOfWeek"].get<uint8_t>();
-uint8_t end_day = resp_from_api["Days"][resp_from_api["Days"].size() - 1]["DayOfWeek"].get<uint8_t>();
+    uint8_t end_day =
+        resp_from_api["Days"][resp_from_api["Days"].size() - 1]["DayOfWeek"]
+            .get<uint8_t>();
 
-// Calculate days back to start day (handles week wraparound)
+    // Calculate days back to start day (handles week wraparound)
-int days_back = (current_wday >= start_day) 
+    int days_back = (current_wday >= start_day)
-                ? (current_wday - start_day) 
+                        ? (current_wday - start_day)
-                : (current_wday + 7 - start_day);
+                        : (current_wday + 7 - start_day);
 
-// Calculate days forward to end day (handles week wraparound)
+    // Calculate days forward to end day (handles week wraparound)
-int days_forward = (current_wday <= end_day) 
+    int days_forward = (current_wday <= end_day) ? (end_day - current_wday)
-                  ? (end_day - current_wday) 
+                                                 : (end_day + 7 - current_wday);
-                  : (end_day + 7 - current_wday);
 
-// Adjust dates
+    // Adjust dates
-start_week.tm_mday -= days_back;
+    start_week.tm_mday -= days_back;
-end_week.tm_mday += days_forward;
+    end_week.tm_mday += days_forward;
 
-// Normalize the dates
+    // Normalize the dates
-std::mktime(&start_week);
+    std::mktime(&start_week);
-std::mktime(&end_week);
+    std::mktime(&end_week);
 
-// Format the dates as strings
+    // Format the dates as strings
-std::stringstream start_week_strstream, end_week_strstream;
+    std::stringstream start_week_strstream, end_week_strstream;
-start_week_strstream << std::put_time(&start_week, "%d.%m.%Y");
+    start_week_strstream << std::put_time(&start_week, "%d.%m.%Y");
-end_week_strstream << std::put_time(&end_week, "%d.%m.%Y");
+    end_week_strstream << std::put_time(&end_week, "%d.%m.%Y");
-
-// kern. developer approved ↓↓
-mvprintw(LINES - 2, COLS - (start_week_strstream.str().length() + 3 + end_week_strstream.str().length()), 
-         "%s", (start_week_strstream.str() + " - " + end_week_strstream.str()).c_str());
 
+    // kern. developer approved ↓↓
+    mvprintw(LINES - 2,
+             COLS - (start_week_strstream.str().length() + 3 +
+                     end_week_strstream.str().length()),
+             "%s",
+             (start_week_strstream.str() + " - " + end_week_strstream.str())
+                 .c_str());
   }
   attroff(COLOR_PAIR(COLOR_BLUE));
 
@@ -360,13 +376,12 @@ mvprintw(LINES - 2, COLS - (start_week_strstream.str().length() + 3 + end_week_s
       selected_cell.x++;
       break;
     case 'p':
-      dateSelected = dateSelected - std::chrono::days(7);
-      goto reload_for_new_week;
-    break;
     case 'n':
-      dateSelected = dateSelected + std::chrono::days(7);
+      (ch == 'p') ? dateSelected = dateSelected - std::chrono::days(7)
+                  : dateSelected = dateSelected + std::chrono::days(7);
+      delete_all(&timetable_allocated);
       goto reload_for_new_week;
-    break;
+      break;
     case 10: // ENTER
       json *atom = find_atom_by_indexes(resp_from_api, selected_cell.y,
                                         selected_cell.x, HourIdLookupTable);
@@ -513,8 +528,8 @@ mvprintw(LINES - 2, COLS - (start_week_strstream.str().length() + 3 + end_week_s
       }
     }
   }
-  delete[] day_windows;
+  delete_all(&timetable_allocated);
-  delete[] lesson_windows;
+  clear();
   endwin();
 }
 
@@ -661,4 +676,4 @@ void draw_cells(uint8_t num_of_columns, uint8_t num_of_days,
       }
     }
   }
-}
+}