Subversion Repositories Tewi

/* $Id: config.c 13 2024-09-13 13:38:57Z nishi $ */

#include "tw_config.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.root.sslkey = NULL;
        config.root.sslcert = NULL;
        config.vhost_count = 0;
        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(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;
        }
}