config.c@ 21

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Last change on this file since 21 was 21, checked in by Nishi, on Sep 14, 2024 at 9:39:39 PM
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Rev	Line
[4]	1	/* $Id: config.c 21 2024-09-14 12:39:39Z 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
[21]	33	bool tw_permission_allowed(const char* path, SOCKADDR addr, struct tw_http_request req, struct tw_config_entry* vhost){
	34	int i;
	35	bool found = false;
	36	bool pathstart = false;
	37	bool perm = false;
	38	again:
	39	for(i = 0; i < vhost->dir_count; i++){
	40	struct tw_dir_entry* e = &vhost->dirs[i];
	41	pathstart = false;
	42	if(strlen(path) >= strlen(e->dir)){
	43	pathstart = true;
	44	int j;
	45	for(j = 0; path[j] != 0 && e->dir[j] != 0; j++){
	46	if(path[j] != e->dir[j]){
	47	pathstart = false;
	48	break;
	49	}
	50	}
	51	}
	52	char* noslash = cm_strdup(e->dir);
	53	noslash[strlen(noslash) - 1] = 0;
	54	if(strcmp(e->dir, path) == 0 \|\| strcmp(noslash, path) == 0 \|\| pathstart){
	55	found = true;
	56	if(strcmp(e->name, "all") == 0){
	57	perm = e->type == TW_DIR_ALLOW;
	58	}
	59	}
	60	free(noslash);
	61	}
	62	if(!found && vhost != &config.root){
	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;
[12]	84	config.vhost_count = 0;
[18]	85	config.module_count = 0;
	86	config.extension = NULL;
[17]	87	config.server_root = cm_strdup(PREFIX);
[12]	88	gethostname(config.hostname, 1024);
[7]	89	}
[6]	90
	91	int tw_config_read(const char* path) {
[4]	92	cm_log("Config", "Reading %s", path);
	93	char cbuf[2];
	94	cbuf[1] = 0;
[6]	95	int ln = 0;
[4]	96	FILE* f = fopen(path, "r");
[6]	97	if(f != NULL) {
[4]	98	char* line = malloc(1);
	99	line[0] = 0;
[6]	100	int stop = 0;
[12]	101	struct tw_config_entry* current = &config.root;
[6]	102	char* vhost = NULL;
[21]	103	char* dir = NULL;
[6]	104	while(stop == 0) {
[4]	105	int c = fread(cbuf, 1, 1, f);
[6]	106	if(cbuf[0] == '\n' \|\| c <= 0) {
	107	ln++;
[4]	108	char* l = cm_trim(line);
[6]	109	if(strlen(l) > 0 && l[0] != '#') {
[5]	110	char** r = cm_split(l, " \t");
	111	int i;
[6]	112	if(cm_strcaseequ(r[0], "Include") \|\| cm_strcaseequ(r[0], "IncludeOptional")) {
	113	for(i = 1; r[i] != NULL; i++) {
	114	if(tw_config_read(r[i]) != 0 && cm_strcaseequ(r[0], "Include")) {
	115	stop = 1;
	116	break;
[5]	117	}
	118	}
[21]	119	} else if(cm_strcaseequ(r[0], "BeginDirectory")) {
	120	if(dir != NULL) {
	121	cm_log("Config", "Already in directory section at line %d", ln);
	122	stop = 1;
	123	} else {
	124	if(r[1] == NULL) {
	125	cm_log("Config", "Missing directory at line %d", ln);
	126	stop = 1;
	127	} else {
	128	dir = cm_strcat(r[1], r[1][strlen(r[1]) - 1] == '/' ? "" : "/");
	129	}
	130	}
	131	} else if(cm_strcaseequ(r[0], "EndDirectory")) {
	132	if(dir == NULL) {
	133	cm_log("Config", "Not in directory section at line %d", ln);
	134	stop = 1;
	135	} else {
	136	free(dir);
	137	dir = NULL;
	138	}
	139	} else if(cm_strcaseequ(r[0], "Allow")) {
	140	if(dir == NULL) {
	141	cm_log("Config", "Not in directory section at line %d", ln);
	142	stop = 1;
	143	} else {
	144	if(r[1] == NULL) {
	145	cm_log("Config", "Missing argument at line %d", ln);
	146	stop = 1;
	147	} else {
	148	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
	149	e->name = cm_strdup(r[1]);
	150	e->dir = cm_strdup(dir);
	151	e->type = TW_DIR_ALLOW;
	152	}
	153	}
	154	} else if(cm_strcaseequ(r[0], "Deny")) {
	155	if(dir == NULL) {
	156	cm_log("Config", "Not in directory section at line %d", ln);
	157	stop = 1;
	158	} else {
	159	if(r[1] == NULL) {
	160	cm_log("Config", "Missing argument at line %d", ln);
	161	stop = 1;
	162	} else {
	163	struct tw_dir_entry* e = &current->dirs[current->dir_count++];
	164	e->name = cm_strdup(r[1]);
	165	e->dir = cm_strdup(dir);
	166	e->type = TW_DIR_DENY;
	167	}
	168	}
[6]	169	} else if(cm_strcaseequ(r[0], "BeginVirtualHost")) {
	170	if(vhost != NULL) {
[12]	171	cm_log("Config", "Already in virtual host section at line %d", ln);
[6]	172	stop = 1;
	173	} else {
	174	if(r[1] == NULL) {
[12]	175	cm_log("Config", "Missing virtual host at line %d", ln);
[6]	176	stop = 1;
	177	} else {
	178	vhost = cm_strdup(r[1]);
[12]	179	current = &config.vhosts[config.vhost_count++];
[21]	180	current->dir_count = 0;
	181	current->mime_count = 0;
[12]	182	int i;
	183	current->name = cm_strdup(vhost);
[13]	184	current->port = -1;
[12]	185	for(i = 0; vhost[i] != 0; i++) {
	186	if(vhost[i] == ':') {
	187	current->name[i] = 0;
	188	current->port = atoi(current->name + i + 1);
	189	break;
	190	}
	191	}
[6]	192	}
	193	}
	194	} else if(cm_strcaseequ(r[0], "EndVirtualHost")) {
	195	if(vhost == NULL) {
[12]	196	cm_log("Config", "Not in virtual host section at line %d", ln);
[6]	197	stop = 1;
	198	} else {
	199	free(vhost);
	200	vhost = NULL;
[12]	201	current = &config.root;
[6]	202	}
[7]	203	} else if(cm_strcaseequ(r[0], "Listen") \|\| cm_strcaseequ(r[0], "ListenSSL")) {
	204	for(i = 1; r[i] != NULL; i++) {
	205	uint64_t port = atoi(r[i]);
	206	cm_log("Config", "Going to listen at port %d%s", (int)port, cm_strcaseequ(r[0], "ListenSSL") ? " with SSL" : "");
	207	if(cm_strcaseequ(r[0], "ListenSSL")) port \|= (1ULL << 32);
	208	int j;
	209	for(j = 0; config.ports[j] != -1; j++)
	210	;
	211	config.ports[j] = port;
	212	}
[12]	213	} else if(cm_strcaseequ(r[0], "SSLKey")) {
	214	if(r[1] == NULL) {
	215	cm_log("Config", "Missing path at line %d", ln);
	216	stop = 1;
	217	} else {
	218	if(current->sslkey != NULL) free(current->sslkey);
	219	current->sslkey = cm_strdup(r[1]);
	220	}
	221	} else if(cm_strcaseequ(r[0], "SSLCertificate")) {
	222	if(r[1] == NULL) {
	223	cm_log("Config", "Missing path at line %d", ln);
	224	stop = 1;
	225	} else {
	226	if(current->sslcert != NULL) free(current->sslcert);
	227	current->sslcert = cm_strdup(r[1]);
	228	}
[19]	229	} else if(cm_strcaseequ(r[0], "DocumentRoot")) {
	230	if(r[1] == NULL) {
	231	cm_log("Config", "Missing path at line %d", ln);
	232	stop = 1;
	233	} else {
	234	if(current->root != NULL) free(current->root);
[21]	235	current->root = cm_strdup(strcmp(r[1], "/") == 0 ? "" : r[1]);
[19]	236	}
[17]	237	} else if(cm_strcaseequ(r[0], "ServerRoot")) {
	238	if(r[1] == NULL) {
	239	cm_log("Config", "Missing path at line %d", ln);
	240	stop = 1;
	241	} else {
	242	if(config.server_root != NULL) free(config.server_root);
	243	config.server_root = cm_strdup(r[1]);
	244	}
[21]	245	} else if(cm_strcaseequ(r[0], "MIMEType")) {
	246	if(r[1] == NULL) {
	247	cm_log("Config", "Missing extension at line %d", ln);
	248	stop = 1;
	249	}else if(r[2] == NULL) {
	250	cm_log("Config", "Missing MIME at line %d", ln);
	251	stop = 1;
	252	} else {
	253	struct tw_mime_entry* e = &current->mimes[current->mime_count++];
	254	e->ext = cm_strdup(r[1]);
	255	e->mime = cm_strdup(r[2]);
	256	}
[17]	257	} else if(cm_strcaseequ(r[0], "LoadModule")) {
	258	for(i = 1; r[i] != NULL; i++) {
	259	void* mod = tw_module_load(r[i]);
	260	if(mod != NULL) {
[18]	261	config.modules[config.module_count++] = mod;
[17]	262	if(tw_module_init(mod) != 0) {
	263	stop = 1;
	264	break;
	265	}
	266	} else {
	267	stop = 1;
	268	break;
	269	}
	270	}
[6]	271	} else {
	272	if(r[0] != NULL) {
	273	cm_log("Config", "Unknown directive `%s' at line %d", r[0], ln);
	274	}
	275	stop = 1;
[5]	276	}
	277	for(i = 0; r[i] != NULL; i++) free(r[i]);
	278	free(r);
[4]	279	}
	280	free(l);
	281	free(line);
	282	line = malloc(1);
	283	line[0] = 0;
	284	if(c <= 0) break;
[6]	285	} else if(cbuf[0] != '\r') {
[4]	286	char* tmp = line;
	287	line = cm_strcat(tmp, cbuf);
	288	free(tmp);
	289	}
	290	}
	291	free(line);
	292	fclose(f);
[6]	293	return stop;
	294	} else {
[5]	295	cm_log("Config", "Could not open the file");
[4]	296	return 1;
	297	}
	298	}

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source: Main/trunk/Server/config.c@ 21

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