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/* $Id: config.c 19 2024-09-14 00:51:41Z nishi $ */
#define SOURCE
#include "tw_config.h"
#include "tw_module.h"
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <cm_string.h>
#include <cm_log.h>
struct tw_config config;
struct tw_config_entry* tw_vhost_match(const char* name, int port) {
int i;
for(i = 0; i < config.vhost_count; i++) {
if(strcmp(config.vhosts[i].name, name) == 0 && (config.vhosts[i].port == -1 ? 1 : config.vhosts[i].port == port)) {
return &config.vhosts[i];
}
}
return &config.root;
}
void tw_config_init(void) {
int i;
for(i = 0; i < MAX_PORTS + 1; i++) {
config.ports[i] = -1;
}
for(i = 0; i < MAX_VHOSTS; i++) {
config.vhosts[i].sslkey = NULL;
config.vhosts[i].sslcert = NULL;
config.vhosts[i].root = NULL;
}
config.root.sslkey = NULL;
config.root.sslcert = NULL;
config.root.root = NULL;
config.vhost_count = 0;
config.module_count = 0;
config.extension = NULL;
config.server_root = cm_strdup(PREFIX);
gethostname(config.hostname, 1024);
}
int tw_config_read(const char* path) {
cm_log("Config", "Reading %s", path);
char cbuf[2];
cbuf[1] = 0;
int ln = 0;
FILE* f = fopen(path, "r");
if(f != NULL) {
char* line = malloc(1);
line[0] = 0;
int stop = 0;
struct tw_config_entry* current = &config.root;
char* vhost = NULL;
while(stop == 0) {
int c = fread(cbuf, 1, 1, f);
if(cbuf[0] == '\n' || c <= 0) {
ln++;
char* l = cm_trim(line);
if(strlen(l) > 0 && l[0] != '#') {
char** r = cm_split(l, " \t");
int i;
if(cm_strcaseequ(r[0], "Include") || cm_strcaseequ(r[0], "IncludeOptional")) {
for(i = 1; r[i] != NULL; i++) {
if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
stop = 1;
break;
}
}
} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
if(vhost != NULL) {
cm_log("Config", "Already in virtual host section at line %d", ln);
stop = 1;
} else {
if(r[1] == NULL) {
cm_log("Config", "Missing virtual host at line %d", ln);
stop = 1;
} else {
vhost = cm_strdup(r[1]);
current = &config.vhosts[config.vhost_count++];
int i;
current->name = cm_strdup(vhost);
current->port = -1;
for(i = 0; vhost[i] != 0; i++) {
if(vhost[i] == ':') {
current->name[i] = 0;
current->port = atoi(current->name + i + 1);
break;
}
}
}
}
} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
if(vhost == NULL) {
cm_log("Config", "Not in virtual host section at line %d", ln);
stop = 1;
} else {
free(vhost);
vhost = NULL;
current = &config.root;
}
} else if(cm_strcaseequ(r[0], "Listen") || cm_strcaseequ(r[0], "ListenSSL")) {
for(i = 1; r[i] != NULL; i++) {
uint64_t port = atoi(r[i]);
cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1ULL << 32);
int j;
for(j = 0; config.ports[j] != -1; j++)
;
config.ports[j] = port;
}
} else if(cm_strcaseequ(r[0], "SSLKey")) {
if(r[1] == NULL) {
cm_log("Config", "Missing path at line %d", ln);
stop = 1;
} else {
if(current->sslkey != NULL) free(current->sslkey);
current->sslkey = cm_strdup(r[1]);
}
} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
if(r[1] == NULL) {
cm_log("Config", "Missing path at line %d", ln);
stop = 1;
} else {
if(current->sslcert != NULL) free(current->sslcert);
current->sslcert = cm_strdup(r[1]);
}
} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
if(r[1] == NULL) {
cm_log("Config", "Missing path at line %d", ln);
stop = 1;
} else {
if(current->root != NULL) free(current->root);
current->root = cm_strdup(r[1]);
}
} else if(cm_strcaseequ(r[0], "ServerRoot")) {
if(r[1] == NULL) {
cm_log("Config", "Missing path at line %d", ln);
stop = 1;
} else {
if(config.server_root != NULL) free(config.server_root);
config.server_root = cm_strdup(r[1]);
}
} else if(cm_strcaseequ(r[0], "LoadModule")) {
for(i = 1; r[i] != NULL; i++) {
void* mod = tw_module_load(r[i]);
if(mod != NULL) {
config.modules[config.module_count++] = mod;
if(tw_module_init(mod) != 0) {
stop = 1;
break;
}
} else {
stop = 1;
break;
}
}
} else {
if(r[0] != NULL) {
cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
}
stop = 1;
}
for(i = 0; r[i] != NULL; i++) free(r[i]);
free(r);
}
free(l);
free(line);
line = malloc(1);
line[0] = 0;
if(c <= 0) break;
} else if(cbuf[0] != '\r') {
char* tmp = line;
line = cm_strcat(tmp, cbuf);
free(tmp);
}
}
free(line);
fclose(f);
return stop;
} else {
cm_log("Config", "Could not open the file");
return 1;
}
}