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4 nishi 1 
/* $Id: config.c 19 2024-09-14 00:51:41Z 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 
 
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#include <cm_string.h>
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#include <cm_log.h>
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6 nishi 17 
struct tw_config config;
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12 nishi 19 
struct tw_config_entry* tw_vhost_match(const char* name, int port) {
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	int i;
21 
	for(i = 0; i < config.vhost_count; i++) {
13 nishi 22 
		if(strcmp(config.vhosts[i].name, name) == 0 && (config.vhosts[i].port == -1 ? 1 : config.vhosts[i].port == port)) {
12 nishi 23 
			return &config.vhosts[i];
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		}
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	}
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	return &config.root;
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}
28 
 
7 nishi 29 
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 34 
	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 37 
		config.vhosts[i].root = NULL;
12 nishi 38 
	}
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	config.root.sslkey = NULL;
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	config.root.sslcert = NULL;
19 nishi 41 
	config.root.root = NULL;
12 nishi 42 
	config.vhost_count = 0;
18 nishi 43 
	config.module_count = 0;
44 
	config.extension = NULL;
17 nishi 45 
	config.server_root = cm_strdup(PREFIX);
12 nishi 46 
	gethostname(config.hostname, 1024);
7 nishi 47 
}
6 nishi 48 
 
49 
int tw_config_read(const char* path) {
4 nishi 50 
	cm_log("Config", "Reading %s", path);
51 
	char cbuf[2];
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	cbuf[1] = 0;
6 nishi 53 
	int ln = 0;
4 nishi 54 
	FILE* f = fopen(path, "r");
6 nishi 55 
	if(f != NULL) {
4 nishi 56 
		char* line = malloc(1);
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		line[0] = 0;
6 nishi 58 
		int stop = 0;
12 nishi 59 
		struct tw_config_entry* current = &config.root;
6 nishi 60 
		char* vhost = NULL;
61 
		while(stop == 0) {
4 nishi 62 
			int c = fread(cbuf, 1, 1, f);
6 nishi 63 
			if(cbuf[0] == '\n' || c <= 0) {
64 
				ln++;
4 nishi 65 
				char* l = cm_trim(line);
6 nishi 66 
				if(strlen(l) > 0 && l[0] != '#') {
5 nishi 67 
					char** r = cm_split(l, " \t");
68 
					int i;
6 nishi 69 
					if(cm_strcaseequ(r[0], "Include") || cm_strcaseequ(r[0], "IncludeOptional")) {
70 
						for(i = 1; r[i] != NULL; i++) {
71 
							if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
72 
								stop = 1;
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								break;
5 nishi 74 
							}
75 
						}
6 nishi 76 
					} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
77 
						if(vhost != NULL) {
12 nishi 78 
							cm_log("Config", "Already in virtual host section at line %d", ln);
6 nishi 79 
							stop = 1;
80 
						} else {
81 
							if(r[1] == NULL) {
12 nishi 82 
								cm_log("Config", "Missing virtual host at line %d", ln);
6 nishi 83 
								stop = 1;
84 
							} else {
85 
								vhost = cm_strdup(r[1]);
12 nishi 86 
								current = &config.vhosts[config.vhost_count++];
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								int i;
88 
								current->name = cm_strdup(vhost);
13 nishi 89 
								current->port = -1;
12 nishi 90 
								for(i = 0; vhost[i] != 0; i++) {
91 
									if(vhost[i] == ':') {
92 
										current->name[i] = 0;
93 
										current->port = atoi(current->name + i + 1);
94 
										break;
95 
									}
96 
								}
6 nishi 97 
							}
98 
						}
99 
					} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
100 
						if(vhost == NULL) {
12 nishi 101 
							cm_log("Config", "Not in virtual host section at line %d", ln);
6 nishi 102 
							stop = 1;
103 
						} else {
104 
							free(vhost);
105 
							vhost = NULL;
12 nishi 106 
							current = &config.root;
6 nishi 107 
						}
7 nishi 108 
					} else if(cm_strcaseequ(r[0], "Listen") || cm_strcaseequ(r[0], "ListenSSL")) {
109 
						for(i = 1; r[i] != NULL; i++) {
110 
							uint64_t port = atoi(r[i]);
111 
							cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
112 
							if(cm_strcaseequ(r[0], "ListenSSL")) port |= (1ULL << 32);
113 
							int j;
114 
							for(j = 0; config.ports[j] != -1; j++)
115 
								;
116 
							config.ports[j] = port;
117 
						}
12 nishi 118 
					} else if(cm_strcaseequ(r[0], "SSLKey")) {
119 
						if(r[1] == NULL) {
120 
							cm_log("Config", "Missing path at line %d", ln);
121 
							stop = 1;
122 
						} else {
123 
							if(current->sslkey != NULL) free(current->sslkey);
124 
							current->sslkey = cm_strdup(r[1]);
125 
						}
126 
					} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
127 
						if(r[1] == NULL) {
128 
							cm_log("Config", "Missing path at line %d", ln);
129 
							stop = 1;
130 
						} else {
131 
							if(current->sslcert != NULL) free(current->sslcert);
132 
							current->sslcert = cm_strdup(r[1]);
133 
						}
19 nishi 134 
					} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
135 
						if(r[1] == NULL) {
136 
							cm_log("Config", "Missing path at line %d", ln);
137 
							stop = 1;
138 
						} else {
139 
							if(current->root != NULL) free(current->root);
140 
							current->root = cm_strdup(r[1]);
141 
						}
17 nishi 142 
					} else if(cm_strcaseequ(r[0], "ServerRoot")) {
143 
						if(r[1] == NULL) {
144 
							cm_log("Config", "Missing path at line %d", ln);
145 
							stop = 1;
146 
						} else {
147 
							if(config.server_root != NULL) free(config.server_root);
148 
							config.server_root = cm_strdup(r[1]);
149 
						}
150 
					} else if(cm_strcaseequ(r[0], "LoadModule")) {
151 
						for(i = 1; r[i] != NULL; i++) {
152 
							void* mod = tw_module_load(r[i]);
153 
							if(mod != NULL) {
18 nishi 154 
								config.modules[config.module_count++] = mod;
17 nishi 155 
								if(tw_module_init(mod) != 0) {
156 
									stop = 1;
157 
									break;
158 
								}
159 
							} else {
160 
								stop = 1;
161 
								break;
162 
							}
163 
						}
6 nishi 164 
					} else {
165 
						if(r[0] != NULL) {
166 
							cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
167 
						}
168 
						stop = 1;
5 nishi 169 
					}
170 
					for(i = 0; r[i] != NULL; i++) free(r[i]);
171 
					free(r);
4 nishi 172 
				}
173 
				free(l);
174 
				free(line);
175 
				line = malloc(1);
176 
				line[0] = 0;
177 
				if(c <= 0) break;
6 nishi 178 
			} else if(cbuf[0] != '\r') {
4 nishi 179 
				char* tmp = line;
180 
				line = cm_strcat(tmp, cbuf);
181 
				free(tmp);
182 
			}
183 
		}
184 
		free(line);
185 
		fclose(f);
6 nishi 186 
		return stop;
187 
	} else {
5 nishi 188 
		cm_log("Config", "Could not open the file");
4 nishi 189 
		return 1;
190 
	}
191 
}