Merge pull request 'Fix critical issues and all tests' (#2) from fix-critical-issues into main

Reviewed-on: #2

src/shared/chunk.c

@@ -6,8 +6,8 @@
 #include <string.h>
 #include <zstd.h>
 
-#include "array_list.h"
 #include "chunk.h"
+#include "array_list.h"
 #include "data.h"
 #include "file.h"
 #include "log.h"
@@ -72,23 +72,26 @@ Data *chunk_format(Chunk *chunk) {
     exit(EXIT_FAILURE);
   }
   char *current_data_pointer = data;
-  // for (int i = 0; i < chunk->element_count; ++i) {
-  //   File *file = chunk->items[i];
-  //   // add path len
-  //   int path_length = (int)strlen(file->path);
-  //   memcpy(current_data_pointer, &path_length, sizeof(int));
-  //   current_data_pointer += sizeof(int);
-  //   // add path
-  //   memcpy(current_data_pointer, file->path, path_length);
-  //   current_data_pointer += path_length;
-  //   // add file data len
-  //   unsigned long long file_length = file->stats.st_size;
-  //   memcpy(current_data_pointer, &file_length, sizeof(unsigned long long));
-  //   current_data_pointer += sizeof(unsigned long long);
-  //   // add file data
-  //   file_content_to_buffer(file, current_data_pointer);
-  //   current_data_pointer += file_length;
-  // }
+  for (int i = 0; i < chunk->element_count; ++i) {
+    File *file = chunk->items[i];
+    // add path len
+    int path_length = (int)strlen(file->path);
+    memcpy(current_data_pointer, &path_length, sizeof(int));
+    current_data_pointer += sizeof(int);
+    // add path
+    memcpy(current_data_pointer, file->path, path_length);
+    current_data_pointer += path_length;
+    // add file data len
+    unsigned long long file_length = file->stats.st_size;
+    memcpy(current_data_pointer, &file_length, sizeof(unsigned long long));
+    current_data_pointer += sizeof(unsigned long long);
+    // add file data
+    if (file->data == NULL) {
+      file_load_data(file);
+    }
+    memcpy(current_data_pointer, file->data->data, file_length);
+    current_data_pointer += file_length;
+  }
   if (current_data_pointer - data != (long)(long)buffer_size) {
     perror("Buffer of Chunk wasn't filled enough!");
     exit(EXIT_FAILURE);
@@ -123,7 +126,7 @@ Data *chunk_compress(Chunk *chunk, int compression_level) {
     unsigned long long data_size = chunk->items[i]->stats.st_size;
     memcpy(data_pointer, &data_size, sizeof(size_t));
     data_pointer += sizeof(size_t);
-    memcpy(data_pointer, chunk->items[i]->data, data_size);
+    memcpy(data_pointer, chunk->items[i]->data->data, data_size);
     data_pointer += data_size;
   }
 
@@ -134,18 +137,95 @@ Data *chunk_compress(Chunk *chunk, int compression_level) {
 Chunk *chunk_decompress(Data *compressed_data) {
   log_message(LOG_LEVEL_DEBUG, "Starting to decompress chunk");
   Data *uncompressed_data = data_decompress(compressed_data);
-  ArrayList *files = array_list_create(file_destroy);
-  size_t *data_pointer = uncompressed_data->data;
-  while (data_pointer <
-         (size_t *)uncompressed_data->data + uncompressed_data->size) {
-    size_t path_len = data_pointer[0];
-
-    printf("%zu, testing", path_len);
-    break;
+  if (uncompressed_data == NULL) {
+    log_message(LOG_LEVEL_ERROR, "Failed to decompress chunk data");
+    return NULL;
   }
   
-  log_message(LOG_LEVEL_DEBUG, "Chunk succesfully decompressed");
-  return NULL;
+  ArrayList *files = array_list_create((void (*)(void *))data_destroy);
+  char *data_pointer = uncompressed_data->data;
+  size_t remaining_size = uncompressed_data->size;
+  
+  while (remaining_size > 0) {
+    if (remaining_size < sizeof(size_t)) {
+      log_message(LOG_LEVEL_ERROR, "Invalid chunk format: not enough data for path length");
+      array_list_delete(files);
+      data_destroy(uncompressed_data);
+      return NULL;
+    }
+    
+    size_t path_len = *(size_t *)data_pointer;
+    data_pointer += sizeof(size_t);
+    remaining_size -= sizeof(size_t);
+    
+    if (remaining_size < path_len) {
+      log_message(LOG_LEVEL_ERROR, "Invalid chunk format: not enough data for path");
+      array_list_delete(files);
+      data_destroy(uncompressed_data);
+      return NULL;
+    }
+    
+    char *path = malloc(path_len + 1);
+    if (path == NULL) {
+      perror("Could not allocate memory for file path");
+      array_list_delete(files);
+      data_destroy(uncompressed_data);
+      return NULL;
+    }
+    memcpy(path, data_pointer, path_len);
+    path[path_len] = '\0';
+    data_pointer += path_len;
+    remaining_size -= path_len;
+    
+    if (remaining_size < sizeof(size_t)) {
+      log_message(LOG_LEVEL_ERROR, "Invalid chunk format: not enough data for data size");
+      free(path);
+      array_list_delete(files);
+      data_destroy(uncompressed_data);
+      return NULL;
+    }
+    
+    size_t data_size = *(size_t *)data_pointer;
+    data_pointer += sizeof(size_t);
+    remaining_size -= sizeof(size_t);
+    
+    if (remaining_size < data_size) {
+      log_message(LOG_LEVEL_ERROR, "Invalid chunk format: not enough data for file content");
+      free(path);
+      array_list_delete(files);
+      data_destroy(uncompressed_data);
+      return NULL;
+    }
+    
+    struct stat st = {0};
+    st.st_size = data_size;
+    File *file = file_create(path, &st);
+    if (file == NULL) {
+      free(path);
+      array_list_delete(files);
+      data_destroy(uncompressed_data);
+      return NULL;
+    }
+    
+    file->data = data_create(data_pointer, data_size);
+    data_pointer += data_size;
+    remaining_size -= data_size;
+    
+    array_list_add(files, file);
+    free(path);
+  }
+  
+  // Create the chunk from the files
+  File **file_array = (File **)array_list_to_array(files);
+  Chunk *chunk = chunk_create(file_array, files->size);
+  
+  // Clean up
+  free(file_array);
+  array_list_delete(files);
+  data_destroy(uncompressed_data);
+  
+  log_message(LOG_LEVEL_DEBUG, "Chunk successfully decompressed");
+  return chunk;
 }
 
 Data *chunk_data_create(void *data, unsigned long long data_size) {

src/shared/file.c

@@ -37,7 +37,7 @@ void file_destroy(void *item) {
   if (item == NULL)
     return;
   File *file = (File *)item;
-  free(file->data);
+  data_destroy(file->data);
   file->data = NULL;
   free(file->path);
   file->path = NULL;

src/shared/socket.c

@@ -61,7 +61,7 @@ void server_listen(Server *server, void (*handler)(int file_descriptor)) {
   int file_descriptor =
       accept(server->file_descriptor, (struct sockaddr *)&server->address,
              &server->address_length);
-  if (server->file_descriptor < 0) {
+  if (file_descriptor < 0) {
     perror("Could not accept the connection");
     exit(EXIT_FAILURE);
   }

tests/test_chunk.c

@@ -25,7 +25,7 @@ static void test_file_operations() {
 
   file_load_data(f);
   EXPECT_NOT_NULL(f->data);
-  EXPECT_EQ_INT(memcmp(f->data, test_content, test_len), 0);
+  EXPECT_EQ_INT(memcmp(f->data->data, test_content, test_len), 0);
 
   file_destroy(f);
   unlink(test_path);