config.c@ 151

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Last change on this file since 151 was 138, checked in by Nishi, on Sep 23, 2024 at 8:12:46 PM
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[4]	1	/* $Id: config.c 138 2024-09-23 11:12:46Z nishi $ */
	2
[16]	3	#define SOURCE
	4
[4]	5	#include "tw_config.h"
[17]	6	#include "tw_module.h"
[4]	7
	8	#include <stdio.h>
[7]	9	#include <stdint.h>
[4]	10	#include <stdlib.h>
	11	#include <string.h>
[12]	12	#include <unistd.h>
[4]	13
[20]	14	#ifdef __MINGW32__
	15	#include <winsock2.h>
	16	#endif
	17
[4]	18	#include <cm_string.h>
	19	#include <cm_log.h>
	20
[6]	21	struct tw_config config;
	22
[12]	23	struct tw_config_entry* tw_vhost_match(const char* name, int port) {
	24	int i;
	25	for(i = 0; i < config.vhost_count; i++) {
[13]	26	if(strcmp(config.vhosts[i].name, name) == 0 && (config.vhosts[i].port == -1 ? 1 : config.vhosts[i].port == port)) {
[12]	27	return &config.vhosts[i];
	28	}
	29	}
	30	return &config.root;
	31	}
	32
[22]	33	bool tw_permission_allowed(const char* path, SOCKADDR addr, struct tw_http_request req, struct tw_config_entry* vhost) {
[21]	34	int i;
	35	bool found = false;
	36	bool pathstart = false;
	37	bool perm = false;
	38	again:
[22]	39	for(i = 0; i < vhost->dir_count; i++) {
[21]	40	struct tw_dir_entry* e = &vhost->dirs[i];
	41	pathstart = false;
[22]	42	if(strlen(path) >= strlen(e->dir)) {
[21]	43	pathstart = true;
	44	int j;
[22]	45	for(j = 0; path[j] != 0 && e->dir[j] != 0; j++) {
	46	if(path[j] != e->dir[j]) {
[21]	47	pathstart = false;
	48	break;
	49	}
	50	}
	51	}
	52	char* noslash = cm_strdup(e->dir);
	53	noslash[strlen(noslash) - 1] = 0;
[22]	54	if(strcmp(e->dir, path) == 0 \|\| strcmp(noslash, path) == 0 \|\| pathstart) {
[21]	55	found = true;
[22]	56	if(strcmp(e->name, "all") == 0) {
[21]	57	perm = e->type == TW_DIR_ALLOW;
	58	}
	59	}
	60	free(noslash);
	61	}
[22]	62	if(!found && vhost != &config.root) {
[21]	63	vhost = &config.root;
	64	goto again;
	65	}
	66	return perm;
	67	}
	68
[7]	69	void tw_config_init(void) {
	70	int i;
	71	for(i = 0; i < MAX_PORTS + 1; i++) {
	72	config.ports[i] = -1;
	73	}
[12]	74	for(i = 0; i < MAX_VHOSTS; i++) {
	75	config.vhosts[i].sslkey = NULL;
	76	config.vhosts[i].sslcert = NULL;
[19]	77	config.vhosts[i].root = NULL;
[12]	78	}
	79	config.root.sslkey = NULL;
	80	config.root.sslcert = NULL;
[19]	81	config.root.root = NULL;
[21]	82	config.root.mime_count = 0;
	83	config.root.dir_count = 0;
[22]	84	config.root.icon_count = 0;
[24]	85	config.root.index_count = 0;
[33]	86	config.root.readme_count = 0;
[123]	87	config.root.hideport = 0;
[12]	88	config.vhost_count = 0;
[18]	89	config.module_count = 0;
	90	config.extension = NULL;
[17]	91	config.server_root = cm_strdup(PREFIX);
[128]	92	config.server_admin = cm_strdup(SERVER_ADMIN);
[12]	93	gethostname(config.hostname, 1024);
[7]	94	}
[6]	95
	96	int tw_config_read(const char* path) {
[4]	97	cm_log("Config", "Reading %s", path);
	98	char cbuf[2];
	99	cbuf[1] = 0;
[6]	100	int ln = 0;
[4]	101	FILE* f = fopen(path, "r");
[6]	102	if(f != NULL) {
[4]	103	char* line = malloc(1);
	104	line[0] = 0;
[6]	105	int stop = 0;
[12]	106	struct tw_config_entry* current = &config.root;
[6]	107	char* vhost = NULL;
[21]	108	char* dir = NULL;
[6]	109	while(stop == 0) {
[4]	110	int c = fread(cbuf, 1, 1, f);
[6]	111	if(cbuf[0] == '\n' \|\| c <= 0) {
	112	ln++;
[4]	113	char* l = cm_trim(line);
[6]	114	if(strlen(l) > 0 && l[0] != '#') {
[5]	115	char** r = cm_split(l, " \t");
	116	int i;
[6]	117	if(cm_strcaseequ(r[0], "Include") \|\| cm_strcaseequ(r[0], "IncludeOptional")) {
	118	for(i = 1; r[i] != NULL; i++) {
	119	if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
	120	stop = 1;
	121	break;
[5]	122	}
	123	}
[21]	124	} else if(cm_strcaseequ(r[0], "BeginDirectory")) {
	125	if(dir != NULL) {
	126	cm_log("Config", "Already in directory section at line %d", ln);
	127	stop = 1;
	128	} else {
	129	if(r[1] == NULL) {
	130	cm_log("Config", "Missing directory at line %d", ln);
	131	stop = 1;
	132	} else {
	133	dir = cm_strcat(r[1], r[1][strlen(r[1]) - 1] == '/' ? "" : "/");
	134	}
	135	}
	136	} else if(cm_strcaseequ(r[0], "EndDirectory")) {
	137	if(dir == NULL) {
	138	cm_log("Config", "Not in directory section at line %d", ln);
	139	stop = 1;
	140	} else {
	141	free(dir);
	142	dir = NULL;
	143	}
	144	} else if(cm_strcaseequ(r[0], "Allow")) {
	145	if(dir == NULL) {
	146	cm_log("Config", "Not in directory section at line %d", ln);
	147	stop = 1;
	148	} else {
	149	if(r[1] == NULL) {
	150	cm_log("Config", "Missing argument at line %d", ln);
	151	stop = 1;
	152	} else {
	153	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
	154	e->name = cm_strdup(r[1]);
	155	e->dir = cm_strdup(dir);
	156	e->type = TW_DIR_ALLOW;
	157	}
	158	}
	159	} else if(cm_strcaseequ(r[0], "Deny")) {
	160	if(dir == NULL) {
	161	cm_log("Config", "Not in directory section at line %d", ln);
	162	stop = 1;
	163	} else {
	164	if(r[1] == NULL) {
	165	cm_log("Config", "Missing argument at line %d", ln);
	166	stop = 1;
	167	} else {
	168	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
	169	e->name = cm_strdup(r[1]);
	170	e->dir = cm_strdup(dir);
	171	e->type = TW_DIR_DENY;
	172	}
	173	}
[6]	174	} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
	175	if(vhost != NULL) {
[12]	176	cm_log("Config", "Already in virtual host section at line %d", ln);
[6]	177	stop = 1;
	178	} else {
	179	if(r[1] == NULL) {
[12]	180	cm_log("Config", "Missing virtual host at line %d", ln);
[6]	181	stop = 1;
	182	} else {
	183	vhost = cm_strdup(r[1]);
[12]	184	current = &config.vhosts[config.vhost_count++];
[21]	185	current->dir_count = 0;
	186	current->mime_count = 0;
[22]	187	current->icon_count = 0;
[24]	188	current->index_count = 0;
[33]	189	current->readme_count = 0;
[123]	190	current->hideport = -1;
[12]	191	int i;
	192	current->name = cm_strdup(vhost);
[13]	193	current->port = -1;
[12]	194	for(i = 0; vhost[i] != 0; i++) {
	195	if(vhost[i] == ':') {
	196	current->name[i] = 0;
	197	current->port = atoi(current->name + i + 1);
	198	break;
	199	}
	200	}
[6]	201	}
	202	}
	203	} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
	204	if(vhost == NULL) {
[12]	205	cm_log("Config", "Not in virtual host section at line %d", ln);
[6]	206	stop = 1;
	207	} else {
	208	free(vhost);
	209	vhost = NULL;
[12]	210	current = &config.root;
[6]	211	}
[7]	212	} else if(cm_strcaseequ(r[0], "Listen") \|\| cm_strcaseequ(r[0], "ListenSSL")) {
	213	for(i = 1; r[i] != NULL; i++) {
	214	uint64_t port = atoi(r[i]);
	215	cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
	216	if(cm_strcaseequ(r[0], "ListenSSL")) port \|= (1ULL << 32);
	217	int j;
	218	for(j = 0; config.ports[j] != -1; j++)
	219	;
	220	config.ports[j] = port;
	221	}
[123]	222	} else if(cm_strcaseequ(r[0], "HidePort")) {
	223	current->hideport = 1;
	224	} else if(cm_strcaseequ(r[0], "ShowPort")) {
	225	current->hideport = 0;
[12]	226	} else if(cm_strcaseequ(r[0], "SSLKey")) {
	227	if(r[1] == NULL) {
	228	cm_log("Config", "Missing path at line %d", ln);
	229	stop = 1;
	230	} else {
	231	if(current->sslkey != NULL) free(current->sslkey);
	232	current->sslkey = cm_strdup(r[1]);
	233	}
	234	} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
	235	if(r[1] == NULL) {
	236	cm_log("Config", "Missing path at line %d", ln);
	237	stop = 1;
	238	} else {
	239	if(current->sslcert != NULL) free(current->sslcert);
	240	current->sslcert = cm_strdup(r[1]);
	241	}
[61]	242	} else if(cm_strcaseequ(r[0], "ServerRoot")) {
	243	if(r[1] == NULL) {
	244	cm_log("Config", "Missing path at line %d", ln);
	245	stop = 1;
	246	} else {
	247	chdir(r[1]);
[127]	248	free(config.server_root);
	249	config.server_root = cm_strdup(r[1]);
[61]	250	}
[128]	251	} else if(cm_strcaseequ(r[0], "ServerAdmin")) {
	252	if(r[1] == NULL) {
	253	cm_log("Config", "Missing email at line %d", ln);
	254	stop = 1;
	255	} else {
	256	free(config.server_admin);
	257	config.server_admin = cm_strdup(r[1]);
	258	}
[19]	259	} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
	260	if(r[1] == NULL) {
	261	cm_log("Config", "Missing path at line %d", ln);
	262	stop = 1;
	263	} else {
	264	if(current->root != NULL) free(current->root);
[21]	265	current->root = cm_strdup(strcmp(r[1], "/") == 0 ? "" : r[1]);
[19]	266	}
[17]	267	} else if(cm_strcaseequ(r[0], "ServerRoot")) {
	268	if(r[1] == NULL) {
	269	cm_log("Config", "Missing path at line %d", ln);
	270	stop = 1;
	271	} else {
	272	if(config.server_root != NULL) free(config.server_root);
	273	config.server_root = cm_strdup(r[1]);
	274	}
[21]	275	} else if(cm_strcaseequ(r[0], "MIMEType")) {
	276	if(r[1] == NULL) {
	277	cm_log("Config", "Missing extension at line %d", ln);
	278	stop = 1;
[22]	279	} else if(r[2] == NULL) {
[21]	280	cm_log("Config", "Missing MIME at line %d", ln);
	281	stop = 1;
	282	} else {
	283	struct tw_mime_entry* e = &current->mimes[current->mime_count++];
	284	e->ext = cm_strdup(r[1]);
	285	e->mime = cm_strdup(r[2]);
	286	}
[22]	287	} else if(cm_strcaseequ(r[0], "Icon")) {
	288	if(r[1] == NULL) {
	289	cm_log("Config", "Missing MIME at line %d", ln);
	290	stop = 1;
	291	} else if(r[2] == NULL) {
	292	cm_log("Config", "Missing path at line %d", ln);
	293	stop = 1;
	294	} else {
	295	struct tw_icon_entry* e = &current->icons[current->icon_count++];
	296	e->mime = cm_strdup(r[1]);
	297	e->icon = cm_strdup(r[2]);
	298	}
[17]	299	} else if(cm_strcaseequ(r[0], "LoadModule")) {
	300	for(i = 1; r[i] != NULL; i++) {
	301	void* mod = tw_module_load(r[i]);
	302	if(mod != NULL) {
[18]	303	config.modules[config.module_count++] = mod;
[17]	304	if(tw_module_init(mod) != 0) {
	305	stop = 1;
	306	break;
	307	}
	308	} else {
[127]	309	cm_log("Config", "Could not load the module at line %d", ln);
[17]	310	stop = 1;
	311	break;
	312	}
	313	}
[24]	314	} else if(cm_strcaseequ(r[0], "DirectoryIndex")) {
	315	for(i = 1; r[i] != NULL; i++) {
	316	current->indexes[current->index_count++] = cm_strdup(r[i]);
	317	}
[33]	318	} else if(cm_strcaseequ(r[0], "Readme")) {
	319	for(i = 1; r[i] != NULL; i++) {
	320	current->readmes[current->readme_count++] = cm_strdup(r[i]);
	321	}
[6]	322	} else {
[39]	323	stop = 1;
[6]	324	if(r[0] != NULL) {
[39]	325	int argc;
	326	for(argc = 0; r[argc] != NULL; argc++)
	327	;
	328	stop = 0;
	329	int i;
	330	bool called = false;
	331	struct tw_tool tools;
	332	tw_init_tools(&tools);
	333	for(i = 0; i < config.module_count; i++) {
	334	tw_mod_config_t mod_config = (tw_mod_config_t)tw_module_symbol(config.modules[i], "mod_config");
	335	int resp;
	336	if(mod_config != NULL && (resp = mod_config(&tools, r, argc)) == TW_CONFIG_PARSED) {
	337	called = true;
	338	break;
	339	}
	340	if(resp == TW_CONFIG_ERROR) {
	341	stop = 1;
	342	called = true;
	343	break;
	344	}
	345	}
	346	if(!called) {
	347	cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
	348	stop = 1;
	349	}
[6]	350	}
[5]	351	}
	352	for(i = 0; r[i] != NULL; i++) free(r[i]);
	353	free(r);
[4]	354	}
	355	free(l);
	356	free(line);
	357	line = malloc(1);
	358	line[0] = 0;
	359	if(c <= 0) break;
[6]	360	} else if(cbuf[0] != '\r') {
[4]	361	char* tmp = line;
	362	line = cm_strcat(tmp, cbuf);
	363	free(tmp);
	364	}
	365	}
	366	free(line);
	367	fclose(f);
[6]	368	return stop;
	369	} else {
[5]	370	cm_log("Config", "Could not open the file");
[4]	371	return 1;
	372	}
	373	}

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source: Main/trunk/Server/config.c@ 151

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