Files
Carbon/src/config_parser.c
Azreyo 1b83097f00 Refactor logging system and enhance Dockerfile configuration
- Introduced a new logging system with configurable log levels and categories.
- Added support for different log formats: plain text, JSON, and syslog.
- Updated Dockerfile to use Alpine 3.19 and improved build process.
- Enhanced server configuration to replace verbose logging with log modes (off, classic, debug, advanced).
- Improved security measures in SSL context configuration.
- Added health checks and resource limits in docker-compose.yml.
- Refactored Makefile to include new logging source files.
- Updated server configuration to set default log file path and SSL certificate paths.
- Enhanced performance tracking and logging capabilities.
- Added hex dump utility for debugging binary data.
2025-12-11 20:04:54 +01:00

288 lines
8.8 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <stdbool.h>
#include <ctype.h>
#include "server_config.h"
typedef enum
{
CONFIG_PORT,
CONFIG_USE_HTTPS,
CONFIG_LOG_FILE,
CONFIG_MAX_THREADS,
CONFIG_RUNNING,
CONFIG_SERVER_NAME,
CONFIG_LOG_MODE,
CONFIG_VERBOSE, // Keep for backwards compatibility
CONFIG_ENABLE_HTTP2,
CONFIG_ENABLE_WEBSOCKET,
CONFIG_WWW_PATH,
CONFIG_MAX_CONNECTIONS,
CONFIG_SSL_CERT_PATH,
CONFIG_SSL_KEY_PATH,
CONFIG_UNKNOWN
} ConfigKey;
// Trim whitespace from both ends of a string
static char *trim_whitespace(char *str)
{
char *end;
// Trim leading space
while (isspace((unsigned char)*str))
str++;
if (*str == 0)
return str;
// Trim trailing space
end = str + strlen(str) - 1;
while (end > str && isspace((unsigned char)*end))
end--;
end[1] = '\0';
return str;
}
// Parse a boolean value (true/false, yes/no, on/off, 1/0)
static bool parse_bool(const char *value)
{
if (strcasecmp(value, "true") == 0 ||
strcasecmp(value, "yes") == 0 ||
strcasecmp(value, "on") == 0 ||
strcmp(value, "1") == 0)
{
return true;
}
return false;
}
// Parse log mode value (off/classic/debug/advanced)
static LogMode parse_log_mode(const char *value)
{
if (strcasecmp(value, "off") == 0 || strcmp(value, "0") == 0)
return LOG_MODE_OFF;
if (strcasecmp(value, "classic") == 0 || strcasecmp(value, "true") == 0 ||
strcasecmp(value, "yes") == 0 || strcmp(value, "1") == 0)
return LOG_MODE_CLASSIC;
if (strcasecmp(value, "debug") == 0)
return LOG_MODE_DEBUG;
if (strcasecmp(value, "advanced") == 0)
return LOG_MODE_ADVANCED;
return LOG_MODE_CLASSIC; // Default
}
// Map string to enum
static ConfigKey get_config_key(const char *key)
{
static const struct
{
const char *name;
ConfigKey key;
} key_map[] = {
{"port", CONFIG_PORT},
{"use_https", CONFIG_USE_HTTPS},
{"log_file", CONFIG_LOG_FILE},
{"max_threads", CONFIG_MAX_THREADS},
{"running", CONFIG_RUNNING},
{"server_name", CONFIG_SERVER_NAME},
{"log_mode", CONFIG_LOG_MODE},
{"verbose", CONFIG_VERBOSE}, // Keep for backwards compatibility
{"enable_http2", CONFIG_ENABLE_HTTP2},
{"enable_websocket", CONFIG_ENABLE_WEBSOCKET},
{"www_path", CONFIG_WWW_PATH},
{"max_connections", CONFIG_MAX_CONNECTIONS},
{"ssl_cert_path", CONFIG_SSL_CERT_PATH},
{"ssl_key_path", CONFIG_SSL_KEY_PATH},
{NULL, CONFIG_UNKNOWN}
};
for (int i = 0; key_map[i].name != NULL; i++)
{
if (strcasecmp(key, key_map[i].name) == 0)
{
return key_map[i].key;
}
}
return CONFIG_UNKNOWN;
}
int load_config(const char *filename, ServerConfig *config)
{
if (!filename || strlen(filename) > 4096)
{
fprintf(stderr, "Invalid config filename\n");
return 1;
}
FILE *fp = fopen(filename, "r");
if (!fp)
{
perror("Error opening config file");
return 1;
}
char line[512];
int line_number = 0;
while (fgets(line, sizeof(line), fp))
{
line_number++;
// Remove newline
line[strcspn(line, "\r\n")] = 0;
// Trim whitespace
char *trimmed = trim_whitespace(line);
// Skip empty lines and comments
if (trimmed[0] == '\0' || trimmed[0] == '#' || trimmed[0] == ';')
{
continue;
}
// Find the delimiter (= or space)
char *delim = strchr(trimmed, '=');
if (!delim)
{
// Try space as delimiter
delim = strchr(trimmed, ' ');
}
if (!delim)
{
fprintf(stderr, "Warning: Invalid config line %d: %s\n", line_number, trimmed);
continue;
}
// Split into key and value
*delim = '\0';
char *key = trim_whitespace(trimmed);
char *value = trim_whitespace(delim + 1);
// Remove quotes from value if present
if ((value[0] == '"' || value[0] == '\'') &&
value[strlen(value) - 1] == value[0])
{
value[strlen(value) - 1] = '\0';
value++;
}
// Parse configuration options
switch (get_config_key(key))
{
case CONFIG_PORT:
config->port = atoi(value);
printf("load_config: port = %d\n", config->port);
break;
case CONFIG_USE_HTTPS:
config->use_https = parse_bool(value);
printf("load_config: use_https = %d\n", config->use_https);
break;
case CONFIG_LOG_FILE:
strncpy(config->log_file, value, sizeof(config->log_file) - 1);
config->log_file[sizeof(config->log_file) - 1] = '\0';
printf("load_config: log_file = %s\n", config->log_file);
break;
case CONFIG_MAX_THREADS:
config->max_threads = atoi(value);
printf("load_config: max_threads = %d\n", config->max_threads);
break;
case CONFIG_RUNNING:
config->running = parse_bool(value);
if (!config->running)
{
fprintf(stderr, "ERROR: current run state is false cannot run the server!\n");
exit(EXIT_FAILURE);
}
printf("load_config: running = %d\n", config->running);
break;
case CONFIG_SERVER_NAME:
strncpy(config->server_name, value, sizeof(config->server_name) - 1);
config->server_name[sizeof(config->server_name) - 1] = '\0';
printf("load_config: server_name = %s\n", config->server_name);
if (strcmp(config->server_name, "Your_domain/IP") == 0)
{
fprintf(stderr, "WARNING: server_name is set to default\n"
"Please set server_name in server.conf to the server's IP address or domain name for proper operation.\n");
}
break;
case CONFIG_LOG_MODE:
config->log_mode = parse_log_mode(value);
printf("load_config: log_mode = %s\n",
config->log_mode == LOG_MODE_OFF ? "off" :
config->log_mode == LOG_MODE_DEBUG ? "debug" :
config->log_mode == LOG_MODE_ADVANCED ? "advanced" : "classic");
break;
case CONFIG_VERBOSE:
// Backwards compatibility: map verbose boolean to log_mode
if (parse_bool(value)) {
config->log_mode = LOG_MODE_CLASSIC;
} else {
config->log_mode = LOG_MODE_OFF;
}
printf("load_config: verbose (legacy) -> log_mode = %s\n",
config->log_mode == LOG_MODE_OFF ? "off" : "classic");
break;
case CONFIG_ENABLE_HTTP2:
config->enable_http2 = parse_bool(value);
if (!config->use_https && config->enable_http2)
{
printf("Error: Cannot load HTTP/2 while HTTPS is not enabled!\n");
exit(EXIT_FAILURE);
}
else
{
printf("load_config: enable_http2 = %d\n", config->enable_http2);
}
break;
case CONFIG_ENABLE_WEBSOCKET:
config->enable_websocket = parse_bool(value);
printf("load_config: enable_websocket = %d\n", config->enable_websocket);
break;
case CONFIG_WWW_PATH:
strncpy(config->www_path, value, sizeof(config->www_path) - 1);
config->www_path[sizeof(config->www_path) - 1] = '\0';
printf("load_config: www_path = %s\n", config->www_path);
break;
case CONFIG_MAX_CONNECTIONS:
config->max_connections = atoi(value);
printf("load_config: max_connections: = %d\n", config->max_connections);
break;
case CONFIG_SSL_CERT_PATH:
if (config->use_https)
{
strncpy(config->ssl_cert_path, value, sizeof(config->ssl_cert_path) - 1);
config->ssl_cert_path[sizeof(config->ssl_cert_path) - 1] = '\0';
printf("load_config: ssl_cert_path = %s\n", config->ssl_cert_path);
}
break;
case CONFIG_SSL_KEY_PATH:
if (config->use_https)
{
strncpy(config->ssl_key_path, value, sizeof(config->ssl_key_path) - 1);
config->ssl_key_path[sizeof(config->ssl_key_path) - 1] = '\0';
printf("load_config: ssl_key_path = %s\n", config->ssl_key_path);
}
break;
case CONFIG_UNKNOWN:
default:
fprintf(stderr, "Warning: Unknown config option '%s' on line %d\n", key, line_number);
break;
}
}
fclose(fp);
return 0;
}