int main (int argc, char **argv) {
GMainLoop *loop;
GIOChannel *sock;
/* Initialize signal handlers */
signal(SIGPIPE, SIG_IGN);
signal(SIGINT, handle_sigint);
/* read nocat.conf */
read_conf_file( NC_CONF_PATH "/nocat.conf" );
initialize_driver();
/* initialize the firewall */
fw_init( nocat_conf );
/* initialize the peer table */
peer_tab = g_hash_new();
/* initialize the listen socket */
sock = http_bind_socket(
CONF("GatewayAddr"), CONFd("GatewayPort"), CONFd("ListenQueue") );
/* initialize the main loop and handlers */
loop = g_main_new(FALSE);
g_io_add_watch( sock, G_IO_IN, (GIOFunc) handle_accept, NULL );
g_timeout_add( 30000, (GSourceFunc) check_peers, NULL );
g_timeout_add( 1000, (GSourceFunc) check_sigint, loop );
/* Go! */
g_message("starting main loop");
g_main_run( loop );
g_message("exiting main loop");
return 0;
}
GHashTable *http_parse_header (http_request *h, gchar *req) {
GHashTable *head = g_hash_new();
gchar **lines, **items, *key, *val, *p, prefix[50];
guint i;
h->method = NULL;
h->uri = NULL;
h->header = head;
if (req == NULL)
return head;
lines = g_strsplit( req, "\r\n", 0 );
if (lines == NULL || lines[0] == NULL)
return head;
items = g_strsplit( lines[0], " ", 3 );
h->method = g_strdup( items[0] );
h->uri = g_strdup( items[1] );
// if (CONFd("Verbosity") >= 8) g_message( "http_parse_header: method_len: %d, uri_len: %d", strlen(h->method), strlen(h->uri));
if (CONFd("Verbosity") >= 8) g_message( "http_parse_header: Method: %s", h->method );
if (CONFd("Verbosity") >= 8) g_message( "http_parse_header: URI: %s", url_decode(h->uri) );
g_strfreev( items );
for (i = 1; lines[i] != NULL && lines[i][0] != '\0'; i++ ) {
key = lines[i];
val = strchr(key, ':');
if (val != NULL) {
/* Separate the key from the value */
*val = '\0';
/* Normalize key -- lowercase every after 1st char */
for (p = key + 1; *p != '\0'; p++)
*p = tolower(*p);
/* Strip ": " plus leading and trailing space from val */
g_strchomp( val += 2 ); // ": "
//if ( strcmp(key, "Referer" )== 0) {
// if (CONFd("Verbosity") >= 8) g_message("http_parse_header: Referer: %s", url_decode(val) );
//}
//else {
if (CONFd("Verbosity") >= 8) {
g_snprintf(prefix, 50, "http_parse_header: %s: ", key);
syslog_message(prefix, url_decode(val), strlen(url_decode(val)) );
}
g_hash_set( head, key, val );
//}
}
}
g_strfreev( lines );
h->header = head;
return head;
}
int main (int argc, char **argv) {
GMainLoop *loop;
GIOChannel *sock;
/* read nocat.conf */
read_conf_file( NC_CONF_PATH "/nocat.conf" );
if (argc < 2 || strncmp(argv[1], "-D", 2) != 0)
daemonize();
/* initalize the log */
initialize_log();
/* set network parameters */
set_network_defaults( nocat_conf );
/* initialize the gateway type driver */
initialize_driver();
/* initialize the firewall */
fw_init( nocat_conf );
/* initialize the peer table */
peer_tab = g_hash_new();
/* initialize the listen socket */
sock = http_bind_socket(
CONF("GatewayAddr"), CONFd("GatewayPort"), CONFd("ListenQueue") );
/* initialize the main loop and handlers */
loop = g_main_new(FALSE);
g_io_add_watch( sock, G_IO_IN, (GIOFunc) handle_accept, NULL );
g_timeout_add( 30000, (GSourceFunc) check_peers, NULL );
g_timeout_add( 1000, (GSourceFunc) check_exit_signal, loop );
/* Go! */
g_message("starting main loop");
g_main_run( loop );
g_message("exiting main loop");
return 0;
}
GHashTable *parse_query_string( gchar *query ) {
GHashTable *data = g_hash_new();
gchar **items, *key, *val, prefix[50];
guint i;
if (!query)
return data;
items = g_strsplit( query, "&", 0 );
for ( i = 0; items[i] != NULL; i++ ) {
key = items[i];
if (key == NULL)
break;
val = strchr( key, '=' );
if (val != NULL)
*(val++) = '\0';
else
val = "1";
key = url_decode( key );
val = url_decode( val );
/* Irving - fix from Yurgi - check to see if the key is already in the
hash table. This deals with keys that are set twice by web sites */
if(g_hash_table_lookup_extended( data, key, NULL, NULL ) == FALSE ) {
g_hash_set( data, key, val );
if(CONFd("Verbosity") >= 8) {
g_snprintf(prefix, 50, "parse_query_string: %s=", key);
syslog_message(prefix, val, strlen(val));
}
}
else
if(CONFd("Verbosity") >= 8) g_message("parse_query_string: DUPLICATE key %s=%s, discarded.", key, val);
g_free( key );
g_free( val );
}
g_strfreev(items);
return data;
}
void http_add_header ( http_request *h, const gchar *key, gchar *val ) {
if ( h->response == NULL )
h->response = g_hash_new();
g_hash_set( h->response, key, val );
}
