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85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
#include "database.h"
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#include "user.h"
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#ifdef USE_SQLITE3
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#include "sql.h"
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#else
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#include "cJSON.h"
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#include "file.h"
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#endif
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User *db_get_user_by_username(const char *username) {
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#ifdef USE_SQLITE3
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User *user = nullptr;
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pthread_mutex_lock(&db_mutex);
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if (!db) {
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fprintf(stderr, "Database not initialized\n");
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pthread_mutex_unlock(&db_mutex);
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return nullptr;
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}
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sqlite3_stmt *stmt;
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int rc =
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sqlite3_prepare_v2(db, SELECT_USER_BY_USERNAME_SQL, -1, &stmt, nullptr);
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if (rc != SQLITE_OK) {
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fprintf(stderr, "Cannot prepare statement: %s\n", sqlite3_errmsg(db));
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pthread_mutex_unlock(&db_mutex);
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return nullptr;
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}
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sqlite3_bind_text(stmt, 1, username, -1, SQLITE_STATIC);
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while ((rc = sqlite3_step(stmt)) == SQLITE_ROW) {
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int id = sqlite3_column_int(stmt, 0);
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const unsigned char *db_username = sqlite3_column_text(stmt, 1);
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const unsigned char *db_email = sqlite3_column_text(stmt, 2);
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const unsigned char *db_password = sqlite3_column_text(stmt, 3);
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const unsigned char *db_group = sqlite3_column_text(stmt, 4);
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int db_is_superuser = sqlite3_column_int(stmt, 5);
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user = new_user(id, (char *) db_username, (char *) db_password,
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(char *) db_email, (char *) db_group, db_is_superuser);
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}
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if (rc != SQLITE_DONE) {
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fprintf(stderr, "Error reading data: %s\n", sqlite3_errmsg(db));
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free_user(user);
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sqlite3_finalize(stmt);
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return nullptr;
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}
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pthread_mutex_unlock(&db_mutex);
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return user;
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#else
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pthread_mutex_lock(&users_file_mutex);
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char *data = read_file("users_db.json");
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cJSON *users = cJSON_Parse(data);
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cJSON *user = nullptr;
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User *found = nullptr;
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cJSON_ArrayForEach(user, users) {
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cJSON *user_id = cJSON_GetObjectItem(user, "id");
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cJSON *user_username = cJSON_GetObjectItem(user, "username");
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cJSON *user_password = cJSON_GetObjectItem(user, "password");
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cJSON *user_email = cJSON_GetObjectItem(user, "email");
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cJSON *user_group = cJSON_GetObjectItem(user, "group");
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cJSON *user_is_superuser = cJSON_GetObjectItem(user, "is_superuser");
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if (!strcmp(user_username->valuestring, username)) {
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found = new_user(user_id->valueint, user_username->valuestring,
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user_password->valuestring, user_email->valuestring,
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user_group->valuestring, user_is_superuser->valueint);
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break;
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}
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}
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if (found == nullptr) {
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pthread_mutex_unlock(&users_file_mutex);
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// if (user != nullptr) cJSON_Delete(user);
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cJSON_Delete(users);
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free(data);
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return nullptr;
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}
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pthread_mutex_unlock(&users_file_mutex);
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// if (user != nullptr) cJSON_Delete(user);
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cJSON_Delete(users);
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free(data);
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return found;
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#endif
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}
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