config.c@ 22

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Last change on this file since 22 was 22, checked in by Nishi, on Sep 14, 2024 at 10:25:38 PM
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Rev	Line
[4]	1	/* $Id: config.c 22 2024-09-14 13:25:38Z 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;
[12]	85	config.vhost_count = 0;
[18]	86	config.module_count = 0;
	87	config.extension = NULL;
[17]	88	config.server_root = cm_strdup(PREFIX);
[12]	89	gethostname(config.hostname, 1024);
[7]	90	}
[6]	91
	92	int tw_config_read(const char* path) {
[4]	93	cm_log("Config", "Reading %s", path);
	94	char cbuf[2];
	95	cbuf[1] = 0;
[6]	96	int ln = 0;
[4]	97	FILE* f = fopen(path, "r");
[6]	98	if(f != NULL) {
[4]	99	char* line = malloc(1);
	100	line[0] = 0;
[6]	101	int stop = 0;
[12]	102	struct tw_config_entry* current = &config.root;
[6]	103	char* vhost = NULL;
[21]	104	char* dir = NULL;
[6]	105	while(stop == 0) {
[4]	106	int c = fread(cbuf, 1, 1, f);
[6]	107	if(cbuf[0] == '\n' \|\| c <= 0) {
	108	ln++;
[4]	109	char* l = cm_trim(line);
[6]	110	if(strlen(l) > 0 && l[0] != '#') {
[5]	111	char** r = cm_split(l, " \t");
	112	int i;
[6]	113	if(cm_strcaseequ(r[0], "Include") \|\| cm_strcaseequ(r[0], "IncludeOptional")) {
	114	for(i = 1; r[i] != NULL; i++) {
	115	if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
	116	stop = 1;
	117	break;
[5]	118	}
	119	}
[21]	120	} else if(cm_strcaseequ(r[0], "BeginDirectory")) {
	121	if(dir != NULL) {
	122	cm_log("Config", "Already in directory section at line %d", ln);
	123	stop = 1;
	124	} else {
	125	if(r[1] == NULL) {
	126	cm_log("Config", "Missing directory at line %d", ln);
	127	stop = 1;
	128	} else {
	129	dir = cm_strcat(r[1], r[1][strlen(r[1]) - 1] == '/' ? "" : "/");
	130	}
	131	}
	132	} else if(cm_strcaseequ(r[0], "EndDirectory")) {
	133	if(dir == NULL) {
	134	cm_log("Config", "Not in directory section at line %d", ln);
	135	stop = 1;
	136	} else {
	137	free(dir);
	138	dir = NULL;
	139	}
	140	} else if(cm_strcaseequ(r[0], "Allow")) {
	141	if(dir == NULL) {
	142	cm_log("Config", "Not in directory section at line %d", ln);
	143	stop = 1;
	144	} else {
	145	if(r[1] == NULL) {
	146	cm_log("Config", "Missing argument at line %d", ln);
	147	stop = 1;
	148	} else {
	149	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
	150	e->name = cm_strdup(r[1]);
	151	e->dir = cm_strdup(dir);
	152	e->type = TW_DIR_ALLOW;
	153	}
	154	}
	155	} else if(cm_strcaseequ(r[0], "Deny")) {
	156	if(dir == NULL) {
	157	cm_log("Config", "Not in directory section at line %d", ln);
	158	stop = 1;
	159	} else {
	160	if(r[1] == NULL) {
	161	cm_log("Config", "Missing argument at line %d", ln);
	162	stop = 1;
	163	} else {
	164	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
	165	e->name = cm_strdup(r[1]);
	166	e->dir = cm_strdup(dir);
	167	e->type = TW_DIR_DENY;
	168	}
	169	}
[6]	170	} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
	171	if(vhost != NULL) {
[12]	172	cm_log("Config", "Already in virtual host section at line %d", ln);
[6]	173	stop = 1;
	174	} else {
	175	if(r[1] == NULL) {
[12]	176	cm_log("Config", "Missing virtual host at line %d", ln);
[6]	177	stop = 1;
	178	} else {
	179	vhost = cm_strdup(r[1]);
[12]	180	current = &config.vhosts[config.vhost_count++];
[21]	181	current->dir_count = 0;
	182	current->mime_count = 0;
[22]	183	current->icon_count = 0;
[12]	184	int i;
	185	current->name = cm_strdup(vhost);
[13]	186	current->port = -1;
[12]	187	for(i = 0; vhost[i] != 0; i++) {
	188	if(vhost[i] == ':') {
	189	current->name[i] = 0;
	190	current->port = atoi(current->name + i + 1);
	191	break;
	192	}
	193	}
[6]	194	}
	195	}
	196	} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
	197	if(vhost == NULL) {
[12]	198	cm_log("Config", "Not in virtual host section at line %d", ln);
[6]	199	stop = 1;
	200	} else {
	201	free(vhost);
	202	vhost = NULL;
[12]	203	current = &config.root;
[6]	204	}
[7]	205	} else if(cm_strcaseequ(r[0], "Listen") \|\| cm_strcaseequ(r[0], "ListenSSL")) {
	206	for(i = 1; r[i] != NULL; i++) {
	207	uint64_t port = atoi(r[i]);
	208	cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
	209	if(cm_strcaseequ(r[0], "ListenSSL")) port \|= (1ULL << 32);
	210	int j;
	211	for(j = 0; config.ports[j] != -1; j++)
	212	;
	213	config.ports[j] = port;
	214	}
[12]	215	} else if(cm_strcaseequ(r[0], "SSLKey")) {
	216	if(r[1] == NULL) {
	217	cm_log("Config", "Missing path at line %d", ln);
	218	stop = 1;
	219	} else {
	220	if(current->sslkey != NULL) free(current->sslkey);
	221	current->sslkey = cm_strdup(r[1]);
	222	}
	223	} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
	224	if(r[1] == NULL) {
	225	cm_log("Config", "Missing path at line %d", ln);
	226	stop = 1;
	227	} else {
	228	if(current->sslcert != NULL) free(current->sslcert);
	229	current->sslcert = cm_strdup(r[1]);
	230	}
[19]	231	} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
	232	if(r[1] == NULL) {
	233	cm_log("Config", "Missing path at line %d", ln);
	234	stop = 1;
	235	} else {
	236	if(current->root != NULL) free(current->root);
[21]	237	current->root = cm_strdup(strcmp(r[1], "/") == 0 ? "" : r[1]);
[19]	238	}
[17]	239	} else if(cm_strcaseequ(r[0], "ServerRoot")) {
	240	if(r[1] == NULL) {
	241	cm_log("Config", "Missing path at line %d", ln);
	242	stop = 1;
	243	} else {
	244	if(config.server_root != NULL) free(config.server_root);
	245	config.server_root = cm_strdup(r[1]);
	246	}
[21]	247	} else if(cm_strcaseequ(r[0], "MIMEType")) {
	248	if(r[1] == NULL) {
	249	cm_log("Config", "Missing extension at line %d", ln);
	250	stop = 1;
[22]	251	} else if(r[2] == NULL) {
[21]	252	cm_log("Config", "Missing MIME at line %d", ln);
	253	stop = 1;
	254	} else {
	255	struct tw_mime_entry* e = &current->mimes[current->mime_count++];
	256	e->ext = cm_strdup(r[1]);
	257	e->mime = cm_strdup(r[2]);
	258	}
[22]	259	} else if(cm_strcaseequ(r[0], "Icon")) {
	260	if(r[1] == NULL) {
	261	cm_log("Config", "Missing MIME at line %d", ln);
	262	stop = 1;
	263	} else if(r[2] == NULL) {
	264	cm_log("Config", "Missing path at line %d", ln);
	265	stop = 1;
	266	} else {
	267	struct tw_icon_entry* e = &current->icons[current->icon_count++];
	268	e->mime = cm_strdup(r[1]);
	269	e->icon = cm_strdup(r[2]);
	270	}
[17]	271	} else if(cm_strcaseequ(r[0], "LoadModule")) {
	272	for(i = 1; r[i] != NULL; i++) {
	273	void* mod = tw_module_load(r[i]);
	274	if(mod != NULL) {
[18]	275	config.modules[config.module_count++] = mod;
[17]	276	if(tw_module_init(mod) != 0) {
	277	stop = 1;
	278	break;
	279	}
	280	} else {
	281	stop = 1;
	282	break;
	283	}
	284	}
[6]	285	} else {
	286	if(r[0] != NULL) {
	287	cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
	288	}
	289	stop = 1;
[5]	290	}
	291	for(i = 0; r[i] != NULL; i++) free(r[i]);
	292	free(r);
[4]	293	}
	294	free(l);
	295	free(line);
	296	line = malloc(1);
	297	line[0] = 0;
	298	if(c <= 0) break;
[6]	299	} else if(cbuf[0] != '\r') {
[4]	300	char* tmp = line;
	301	line = cm_strcat(tmp, cbuf);
	302	free(tmp);
	303	}
	304	}
	305	free(line);
	306	fclose(f);
[6]	307	return stop;
	308	} else {
[5]	309	cm_log("Config", "Could not open the file");
[4]	310	return 1;
	311	}
	312	}

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source: Main/trunk/Server/config.c@ 22

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