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4 nishi 1 
/* $Id: config.c 20 2024-09-14 09:59:15Z nishi $ */
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16 nishi 3 
#define SOURCE
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4 nishi 5 
#include "tw_config.h"
17 nishi 6 
#include "tw_module.h"
4 nishi 7 
 
8 
#include <stdio.h>
7 nishi 9 
#include <stdint.h>
4 nishi 10 
#include <stdlib.h>
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#include <string.h>
12 nishi 12 
#include <unistd.h>
4 nishi 13 
 
20 nishi 14 
#ifdef __MINGW32__
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#include <winsock2.h>
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#endif
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4 nishi 18 
#include <cm_string.h>
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#include <cm_log.h>
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6 nishi 21 
struct tw_config config;
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12 nishi 23 
struct tw_config_entry* tw_vhost_match(const char* name, int port) {
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	int i;
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	for(i = 0; i < config.vhost_count; i++) {
13 nishi 26 
		if(strcmp(config.vhosts[i].name, name) == 0 && (config.vhosts[i].port == -1 ? 1 : config.vhosts[i].port == port)) {
12 nishi 27 
			return &config.vhosts[i];
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		}
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	}
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	return &config.root;
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}
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7 nishi 33 
void tw_config_init(void) {
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	int i;
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	for(i = 0; i < MAX_PORTS + 1; i++) {
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		config.ports[i] = -1;
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	}
12 nishi 38 
	for(i = 0; i < MAX_VHOSTS; i++) {
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		config.vhosts[i].sslkey = NULL;
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		config.vhosts[i].sslcert = NULL;
19 nishi 41 
		config.vhosts[i].root = NULL;
12 nishi 42 
	}
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	config.root.sslkey = NULL;
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	config.root.sslcert = NULL;
19 nishi 45 
	config.root.root = NULL;
12 nishi 46 
	config.vhost_count = 0;
18 nishi 47 
	config.module_count = 0;
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	config.extension = NULL;
17 nishi 49 
	config.server_root = cm_strdup(PREFIX);
12 nishi 50 
	gethostname(config.hostname, 1024);
7 nishi 51 
}
6 nishi 52 
 
53 
int tw_config_read(const char* path) {
4 nishi 54 
	cm_log("Config", "Reading %s", path);
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	char cbuf[2];
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	cbuf[1] = 0;
6 nishi 57 
	int ln = 0;
4 nishi 58 
	FILE* f = fopen(path, "r");
6 nishi 59 
	if(f != NULL) {
4 nishi 60 
		char* line = malloc(1);
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		line[0] = 0;
6 nishi 62 
		int stop = 0;
12 nishi 63 
		struct tw_config_entry* current = &config.root;
6 nishi 64 
		char* vhost = NULL;
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		while(stop == 0) {
4 nishi 66 
			int c = fread(cbuf, 1, 1, f);
6 nishi 67 
			if(cbuf[0] == '\n' || c <= 0) {
68 
				ln++;
4 nishi 69 
				char* l = cm_trim(line);
6 nishi 70 
				if(strlen(l) > 0 && l[0] != '#') {
5 nishi 71 
					char** r = cm_split(l, " \t");
72 
					int i;
6 nishi 73 
					if(cm_strcaseequ(r[0], "Include") || cm_strcaseequ(r[0], "IncludeOptional")) {
74 
						for(i = 1; r[i] != NULL; i++) {
75 
							if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
76 
								stop = 1;
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								break;
5 nishi 78 
							}
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						}
6 nishi 80 
					} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
81 
						if(vhost != NULL) {
12 nishi 82 
							cm_log("Config", "Already in virtual host section at line %d", ln);
6 nishi 83 
							stop = 1;
84 
						} else {
85 
							if(r[1] == NULL) {
12 nishi 86 
								cm_log("Config", "Missing virtual host at line %d", ln);
6 nishi 87 
								stop = 1;
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							} else {
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								vhost = cm_strdup(r[1]);
12 nishi 90 
								current = &config.vhosts[config.vhost_count++];
91 
								int i;
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								current->name = cm_strdup(vhost);
13 nishi 93 
								current->port = -1;
12 nishi 94 
								for(i = 0; vhost[i] != 0; i++) {
95 
									if(vhost[i] == ':') {
96 
										current->name[i] = 0;
97 
										current->port = atoi(current->name + i + 1);
98 
										break;
99 
									}
100 
								}
6 nishi 101 
							}
102 
						}
103 
					} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
104 
						if(vhost == NULL) {
12 nishi 105 
							cm_log("Config", "Not in virtual host section at line %d", ln);
6 nishi 106 
							stop = 1;
107 
						} else {
108 
							free(vhost);
109 
							vhost = NULL;
12 nishi 110 
							current = &config.root;
6 nishi 111 
						}
7 nishi 112 
					} else if(cm_strcaseequ(r[0], "Listen") || cm_strcaseequ(r[0], "ListenSSL")) {
113 
						for(i = 1; r[i] != NULL; i++) {
114 
							uint64_t port = atoi(r[i]);
115 
							cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
116 
							if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1ULL << 32);
117 
							int j;
118 
							for(j = 0; config.ports[j] != -1; j++)
119 
								;
120 
							config.ports[j] = port;
121 
						}
12 nishi 122 
					} else if(cm_strcaseequ(r[0], "SSLKey")) {
123 
						if(r[1] == NULL) {
124 
							cm_log("Config", "Missing path at line %d", ln);
125 
							stop = 1;
126 
						} else {
127 
							if(current->sslkey != NULL) free(current->sslkey);
128 
							current->sslkey = cm_strdup(r[1]);
129 
						}
130 
					} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
131 
						if(r[1] == NULL) {
132 
							cm_log("Config", "Missing path at line %d", ln);
133 
							stop = 1;
134 
						} else {
135 
							if(current->sslcert != NULL) free(current->sslcert);
136 
							current->sslcert = cm_strdup(r[1]);
137 
						}
19 nishi 138 
					} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
139 
						if(r[1] == NULL) {
140 
							cm_log("Config", "Missing path at line %d", ln);
141 
							stop = 1;
142 
						} else {
143 
							if(current->root != NULL) free(current->root);
144 
							current->root = cm_strdup(r[1]);
145 
						}
17 nishi 146 
					} else if(cm_strcaseequ(r[0], "ServerRoot")) {
147 
						if(r[1] == NULL) {
148 
							cm_log("Config", "Missing path at line %d", ln);
149 
							stop = 1;
150 
						} else {
151 
							if(config.server_root != NULL) free(config.server_root);
152 
							config.server_root = cm_strdup(r[1]);
153 
						}
154 
					} else if(cm_strcaseequ(r[0], "LoadModule")) {
155 
						for(i = 1; r[i] != NULL; i++) {
156 
							void* mod = tw_module_load(r[i]);
157 
							if(mod != NULL) {
18 nishi 158 
								config.modules[config.module_count++] = mod;
17 nishi 159 
								if(tw_module_init(mod) != 0) {
160 
									stop = 1;
161 
									break;
162 
								}
163 
							} else {
164 
								stop = 1;
165 
								break;
166 
							}
167 
						}
6 nishi 168 
					} else {
169 
						if(r[0] != NULL) {
170 
							cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
171 
						}
172 
						stop = 1;
5 nishi 173 
					}
174 
					for(i = 0; r[i] != NULL; i++) free(r[i]);
175 
					free(r);
4 nishi 176 
				}
177 
				free(l);
178 
				free(line);
179 
				line = malloc(1);
180 
				line[0] = 0;
181 
				if(c <= 0) break;
6 nishi 182 
			} else if(cbuf[0] != '\r') {
4 nishi 183 
				char* tmp = line;
184 
				line = cm_strcat(tmp, cbuf);
185 
				free(tmp);
186 
			}
187 
		}
188 
		free(line);
189 
		fclose(f);
6 nishi 190 
		return stop;
191 
	} else {
5 nishi 192 
		cm_log("Config", "Could not open the file");
4 nishi 193 
		return 1;
194 
	}
195 
}