server.c@ 166

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Last change on this file since 166 was 166, checked in by Nishi, on Sep 27, 2024 at 5:00:49 AM
better redirect
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Rev	Line
[8]	1	/* $Id: server.c 166 2024-09-26 20:00:49Z nishi $ */
	2
[16]	3	#define SOURCE
	4
[43]	5	#include "../config.h"
	6
[8]	7	#include "tw_server.h"
	8
[43]	9	#ifndef NO_SSL
[12]	10	#include "tw_ssl.h"
[43]	11	#endif
	12
[8]	13	#include "tw_config.h"
[16]	14	#include "tw_http.h"
[18]	15	#include "tw_module.h"
	16	#include "tw_version.h"
[8]	17
	18	#include <unistd.h>
	19	#include <string.h>
[11]	20	#include <stdbool.h>
[20]	21	#include <stdarg.h>
[43]	22	#include <stdio.h>
	23	#include <stdlib.h>
[84]	24	#include <errno.h>
[21]	25	#include <sys/stat.h>
[32]	26	#include <time.h>
[8]	27
[18]	28	#include <cm_string.h>
[8]	29	#include <cm_log.h>
[21]	30	#include <cm_dir.h>
[8]	31
	32	#ifdef __MINGW32__
[163]	33	#ifndef NO_GETADDRINFO
[116]	34	#include <ws2tcpip.h>
	35	#include <wspiapi.h>
[163]	36	#endif
[8]	37	#include <winsock2.h>
[11]	38	#include <process.h>
[62]	39	#include <windows.h>
[32]	40
	41	#include "strptime.h"
[8]	42	#else
[118]	43	#ifdef USE_POLL
	44	#include <poll.h>
	45	#else
[8]	46	#include <sys/select.h>
[118]	47	#endif
[8]	48	#include <sys/socket.h>
	49	#include <arpa/inet.h>
	50	#include <netinet/in.h>
	51	#include <netinet/tcp.h>
[163]	52	#ifndef NO_GETADDRINFO
[116]	53	#include <netdb.h>
[8]	54	#endif
[163]	55	#endif
[8]	56
[97]	57	#ifdef __HAIKU__
	58	#include <OS.h>
	59	#endif
	60
[8]	61	extern struct tw_config config;
[18]	62	extern char tw_server[];
[8]	63
	64	int sockcount = 0;
	65
[9]	66	SOCKADDR addresses[MAX_PORTS];
	67	int sockets[MAX_PORTS];
[8]	68
[70]	69	#ifdef __MINGW32__
	70	const char* reserved_names[] = {"CON", "PRN", "AUX", "NUL", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9"};
	71	#endif
	72
[23]	73	/* https://qiita.com/gyu-don/items/5a640c6d2252a860c8cd */
	74	int tw_wildcard_match(const char* wildcard, const char* target) {
	75	const char pw = wildcard, pt = target;
	76
	77	while(1) {
	78	if(*pt == 0) {
	79	while(pw == '') pw++;
	80	return *pw == 0;
	81	} else if(*pw == 0) {
	82	return 0;
	83	} else if(pw == '') {
	84	return *(pw + 1) == 0 \|\| tw_wildcard_match(pw, pt + 1) \|\| tw_wildcard_match(pw + 1, pt);
	85	} else if(pw == '?' \|\| (pw == *pt)) {
	86	pw++;
	87	pt++;
	88	continue;
	89	} else {
	90	return 0;
	91	}
	92	}
	93	}
	94
[8]	95	void close_socket(int sock) {
[88]	96	#if defined(__MINGW32__)
[8]	97	closesocket(sock);
	98	#else
	99	close(sock);
	100	#endif
	101	}
	102
	103	int tw_server_init(void) {
	104	int i;
	105	#ifdef __MINGW32__
	106	WSADATA wsa;
	107	WSAStartup(MAKEWORD(2, 0), &wsa);
	108	#endif
	109	for(i = 0; config.ports[i] != -1; i++)
	110	;
	111	sockcount = i;
	112	for(i = 0; config.ports[i] != -1; i++) {
	113	#ifdef NO_IPV6
	114	int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	115	#else
	116	int sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
	117	#endif
	118	#ifdef __MINGW32__
	119	if(sock == INVALID_SOCKET)
	120	#else
	121	if(sock < 0)
	122	#endif
	123	{
	124	cm_log("Server", "Socket creation failure");
	125	return 1;
	126	}
	127	int yes = 1;
	128	if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(yes)) < 0) {
	129	close_socket(sock);
	130	cm_log("Server", "setsockopt failure (reuseaddr)");
	131	return 1;
	132	}
	133	if(setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&yes, sizeof(yes)) < 0) {
	134	close_socket(sock);
	135	cm_log("Server", "setsockopt failure (nodelay)");
	136	return 1;
	137	}
	138	#ifndef NO_IPV6
	139	int no = 0;
	140	if(setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&no, sizeof(no)) < 0) {
	141	close_socket(sock);
	142	cm_log("Server", "setsockopt failure (IPv6)");
	143	return 1;
	144	}
	145	#endif
	146	memset(&addresses[i], 0, sizeof(addresses[i]));
	147	#ifdef NO_IPV6
	148	addresses[i].sin_family = AF_INET;
	149	addresses[i].sin_addr.s_addr = INADDR_ANY;
	150	addresses[i].sin_port = htons(config.ports[i]);
	151	#else
	152	addresses[i].sin6_family = AF_INET6;
	153	addresses[i].sin6_addr = in6addr_any;
	154	addresses[i].sin6_port = htons(config.ports[i]);
	155	#endif
	156	if(bind(sock, (struct sockaddr*)&addresses[i], sizeof(addresses[i])) < 0) {
	157	close_socket(sock);
	158	cm_log("Server", "Bind failure");
	159	return 1;
	160	}
	161	if(listen(sock, 128) < 0) {
	162	close_socket(sock);
	163	cm_log("Server", "Listen failure");
	164	return 1;
	165	}
	166	sockets[i] = sock;
	167	}
	168	return 0;
	169	}
[9]	170
[16]	171	size_t tw_read(SSL* ssl, int s, void* data, size_t len) {
[43]	172	#ifndef NO_SSL
[16]	173	if(ssl == NULL) {
	174	return recv(s, data, len, 0);
	175	} else {
	176	return SSL_read(ssl, data, len);
	177	}
[43]	178	#else
	179	return recv(s, data, len, 0);
	180	#endif
[16]	181	}
	182
	183	size_t tw_write(SSL* ssl, int s, void* data, size_t len) {
[43]	184	#ifndef NO_SSL
[16]	185	if(ssl == NULL) {
	186	return send(s, data, len, 0);
	187	} else {
	188	return SSL_write(ssl, data, len);
	189	}
[43]	190	#else
	191	return send(s, data, len, 0);
	192	#endif
[16]	193	}
	194
[20]	195	#define ERROR_HTML \
[18]	196	"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n" \
	197	"<html>\n" \
	198	" <head>\n" \
[20]	199	" <title>%s</title>\n" \
[18]	200	" </head>\n" \
	201	" <body>\n" \
[20]	202	" <h1>%s</h1>\n" \
[18]	203	" <hr>\n" \
	204	" ", \
	205	address, \
	206	"\n" \
	207	" </body>\n" \
	208	"</html>\n"
	209
[32]	210	void _tw_process_page(SSL* ssl, int sock, const char* status, const char* type, FILE* f, const unsigned char* doc, size_t size, char** headers, time_t mtime, time_t cmtime) {
[18]	211	char construct[512];
[32]	212	if(mtime != 0 && cmtime != 0 && mtime <= cmtime) {
	213	status = "304 Not Modified";
	214	type = NULL;
	215	size = 0;
	216	headers = NULL;
	217	f = NULL;
	218	doc = NULL;
	219	}
[18]	220	sprintf(construct, "%llu", (unsigned long long)size);
	221	tw_write(ssl, sock, "HTTP/1.1 ", 9);
	222	tw_write(ssl, sock, (char*)status, strlen(status));
	223	tw_write(ssl, sock, "\r\n", 2);
[24]	224	if(type != NULL) {
	225	tw_write(ssl, sock, "Content-Type: ", 7 + 5 + 2);
	226	tw_write(ssl, sock, (char*)type, strlen(type));
	227	tw_write(ssl, sock, "\r\n", 2);
	228	}
[18]	229	tw_write(ssl, sock, "Server: ", 6 + 2);
	230	tw_write(ssl, sock, tw_server, strlen(tw_server));
	231	tw_write(ssl, sock, "\r\n", 2);
[24]	232	if(size != 0) {
	233	tw_write(ssl, sock, "Content-Length: ", 7 + 7 + 2);
	234	tw_write(ssl, sock, construct, strlen(construct));
	235	tw_write(ssl, sock, "\r\n", 2);
[32]	236	if(mtime != 0) {
	237	struct tm* tm = gmtime(&mtime);
	238	char date[513];
	239	strftime(date, 512, "%a, %d %b %Y %H:%M:%S GMT", tm);
	240	tw_write(ssl, sock, "Last-Modified: ", 5 + 8 + 2);
	241	tw_write(ssl, sock, date, strlen(date));
	242	tw_write(ssl, sock, "\r\n", 2);
	243	}
[24]	244	}
	245	int i;
	246	if(headers != NULL) {
	247	for(i = 0; headers[i] != NULL; i += 2) {
	248	tw_write(ssl, sock, headers[i], strlen(headers[i]));
	249	tw_write(ssl, sock, ": ", 2);
	250	tw_write(ssl, sock, headers[i + 1], strlen(headers[i + 1]));
	251	tw_write(ssl, sock, "\r\n", 2);
	252	}
	253	}
[18]	254	tw_write(ssl, sock, "\r\n", 2);
[24]	255	if(doc == NULL && f == NULL) return;
[18]	256	size_t incr = 0;
	257	while(1) {
[22]	258	if(f != NULL) {
[21]	259	char buffer[128];
	260	fread(buffer, size < 128 ? size : 128, 1, f);
	261	tw_write(ssl, sock, buffer, size < 128 ? size : 128);
[22]	262	} else {
[21]	263	tw_write(ssl, sock, (unsigned char*)doc + incr, size < 128 ? size : 128);
	264	}
[18]	265	incr += 128;
[19]	266	if(size <= 128) break;
[18]	267	size -= 128;
	268	}
	269	}
	270
[32]	271	void tw_process_page(SSL* ssl, int sock, const char* status, const char* type, FILE* f, const unsigned char* doc, size_t size, time_t mtime, time_t cmtime) { _tw_process_page(ssl, sock, status, type, f, doc, size, NULL, mtime, cmtime); }
[24]	272
[18]	273	const char* tw_http_status(int code) {
[20]	274	if(code == 200) {
	275	return "200 OK";
[166]	276	} else if(code == 301) {
	277	return "308 Moved Permanently";
[24]	278	} else if(code == 308) {
	279	return "308 Permanent Redirect";
[20]	280	} else if(code == 400) {
[18]	281	return "400 Bad Request";
[20]	282	} else if(code == 401) {
	283	return "401 Unauthorized";
	284	} else if(code == 403) {
	285	return "403 Forbidden";
	286	} else if(code == 404) {
	287	return "404 Not Found";
[161]	288	} else if(code == 500) {
	289	return "500 Internal Server Error";
[18]	290	} else {
	291	return "400 Bad Request";
	292	}
	293	}
	294
[123]	295	char* tw_http_default_error(int code, char* name, int port, struct tw_config_entry* vhost) {
[18]	296	char address[1024];
[20]	297
[123]	298	if((vhost->hideport == -1 ? config.root.hideport : vhost->hideport) == 1) {
	299	sprintf(address, "<address>%s Server at %s</address>", tw_server, name, port);
	300	} else {
	301	sprintf(address, "<address>%s Server at %s Port %d</address>", tw_server, name, port);
	302	}
	303
[20]	304	char* st = cm_strdup(tw_http_status(code));
	305	char* st2;
	306	int i;
	307	for(i = 0; st[i] != 0; i++) {
	308	if(st[i] == ' ') {
	309	st2 = cm_strdup(st + i + 1);
	310	break;
	311	}
[18]	312	}
[20]	313	char* buffer = malloc(4096);
	314	char* str = cm_strcat3(ERROR_HTML);
	315	sprintf(buffer, str, st, st2);
	316	free(str);
	317	free(st);
	318	return buffer;
[18]	319	}
	320
[123]	321	void tw_http_error(SSL* ssl, int sock, int error, char* name, int port, struct tw_config_entry* vhost) {
	322	char* str = tw_http_default_error(error, name, port, vhost);
[32]	323	tw_process_page(ssl, sock, tw_http_status(error), "text/html", NULL, str, strlen(str), 0, 0);
[18]	324	free(str);
	325	}
	326
[20]	327	void addstring(char** str, const char* add, ...) {
	328	int i;
	329	char cbuf[2];
	330	cbuf[1] = 0;
	331	va_list va;
	332	va_start(va, add);
	333	for(i = 0; add[i] != 0; i++) {
	334	cbuf[0] = add[i];
	335	if(add[i] == '%') {
	336	i++;
	337	if(add[i] == 's') {
	338	char* tmp = *str;
	339	str = cm_strcat(tmp, va_arg(va, const char));
	340	free(tmp);
	341	} else if(add[i] == 'h') {
	342	char* h = cm_html_escape(va_arg(va, const char*));
	343	char* tmp = *str;
	344	*str = cm_strcat(tmp, h);
	345	free(tmp);
	346	free(h);
[21]	347	} else if(add[i] == 'l') {
	348	char* h = cm_url_escape(va_arg(va, const char*));
	349	char* tmp = *str;
	350	*str = cm_strcat(tmp, h);
	351	free(tmp);
	352	free(h);
[20]	353	} else if(add[i] == 'd') {
	354	int n = va_arg(va, int);
	355	char* h = malloc(512);
	356	sprintf(h, "%d", n);
	357	char* tmp = *str;
	358	*str = cm_strcat(tmp, h);
	359	free(tmp);
	360	free(h);
	361	} else if(add[i] == '%') {
	362	char* tmp = *str;
	363	*str = cm_strcat(tmp, "%");
	364	free(tmp);
	365	}
	366	} else {
	367	char* tmp = *str;
	368	*str = cm_strcat(tmp, cbuf);
	369	free(tmp);
	370	}
	371	}
[74]	372	va_end(va);
[20]	373	}
	374
[22]	375	char* tw_get_mime(const char* ext, struct tw_config_entry* vhost_entry) {
	376	char* mime = "application/octet-stream";
	377	if(ext == NULL) return mime;
	378	bool set = false;
	379	int i;
	380	for(i = 0; i < vhost_entry->mime_count; i++) {
[23]	381	if(strcmp(vhost_entry->mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(vhost_entry->mimes[i].ext, ext))) {
[22]	382	mime = vhost_entry->mimes[i].mime;
	383	set = true;
	384	}
	385	}
	386	if(!set) {
	387	for(i = 0; i < config.root.mime_count; i++) {
[23]	388	if(strcmp(config.root.mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(config.root.mimes[i].ext, ext))) {
[22]	389	mime = config.root.mimes[i].mime;
	390	}
	391	}
	392	}
	393	return mime;
	394	}
	395
	396	char* tw_get_icon(const char* mime, struct tw_config_entry* vhost_entry) {
	397	char* icon = "";
	398	if(mime == NULL) return "";
	399	bool set = false;
	400	int i;
	401	for(i = 0; i < vhost_entry->icon_count; i++) {
[23]	402	if(strcmp(vhost_entry->icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(vhost_entry->icons[i].mime, mime))) {
[22]	403	icon = vhost_entry->icons[i].icon;
	404	set = true;
	405	}
	406	}
	407	if(!set) {
	408	for(i = 0; i < config.root.icon_count; i++) {
[23]	409	if(strcmp(config.root.icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(config.root.icons[i].mime, mime))) {
[22]	410	icon = config.root.icons[i].icon;
	411	}
	412	}
	413	}
	414	return icon;
	415	}
	416
[11]	417	struct pass_entry {
	418	int sock;
[12]	419	int port;
[11]	420	bool ssl;
[21]	421	SOCKADDR addr;
[11]	422	};
	423
[97]	424	#ifdef __MINGW32__
[11]	425	unsigned int WINAPI tw_server_pass(void* ptr) {
[97]	426	#elif defined(__HAIKU__)
	427	int32_t tw_server_pass(void* ptr) {
[105]	428	#endif
	429	#if defined(__HAIKU__) \|\| defined(__MINGW32__)
[11]	430	int sock = ((struct pass_entry*)ptr)->sock;
	431	bool ssl = ((struct pass_entry*)ptr)->ssl;
[14]	432	int port = ((struct pass_entry*)ptr)->port;
[21]	433	SOCKADDR addr = ((struct pass_entry*)ptr)->addr;
[12]	434	free(ptr);
[11]	435	#else
[105]	436	void tw_server_pass(int sock, bool ssl, int port, SOCKADDR addr) {
[11]	437	#endif
[13]	438	char* name = config.hostname;
	439
[43]	440	#ifndef NO_SSL
[12]	441	SSL_CTX* ctx = NULL;
	442	SSL* s = NULL;
[15]	443	bool sslworks = false;
[12]	444	if(ssl) {
	445	ctx = tw_create_ssl_ctx(port);
	446	s = SSL_new(ctx);
	447	SSL_set_fd(s, sock);
	448	if(SSL_accept(s) <= 0) goto cleanup;
[15]	449	sslworks = true;
[12]	450	}
[43]	451	#else
[105]	452	void* s = NULL;
[43]	453	#endif
[116]	454
	455	char address[513];
	456	address[0] = 0;
[163]	457	#ifndef NO_GETADDRINFO
[116]	458	struct sockaddr* sa = (struct sockaddr*)&addr;
	459	getnameinfo(sa, sizeof(addr), address, 512, NULL, 0, NI_NUMERICHOST);
[163]	460	#endif
[116]	461
[16]	462	struct tw_http_request req;
[20]	463	struct tw_http_response res;
	464	struct tw_tool tools;
	465	res._processed = false;
	466	tw_init_tools(&tools);
[16]	467	int ret = tw_http_parse(s, sock, &req);
[17]	468	if(ret == 0) {
[116]	469	char date[513];
	470	time_t t = time(NULL);
	471	struct tm* tm = localtime(&t);
	472	strftime(date, 512, "%a, %d %b %Y %H:%M:%S %Z", tm);
	473
	474	char* useragent = cm_strdup("");
	475
	476	int i;
[117]	477	for(i = 0; req.headers[i] != NULL; i += 2) {
	478	if(cm_strcaseequ(req.headers[i], "User-Agent")) {
[116]	479	free(useragent);
	480	useragent = cm_strdup(req.headers[i + 1]);
	481	}
	482	}
	483
	484	char* tmp = cm_strcat3(address, " - [", date);
	485	char* tmp2 = cm_strcat3(tmp, "] \"", req.method);
	486	char* tmp3 = cm_strcat3(tmp2, " ", req.path);
	487	char* tmp4 = cm_strcat3(tmp3, " ", req.version);
	488	char* tmp5 = cm_strcat3(tmp4, "\" \"", useragent);
	489	char* log = cm_strcat(tmp5, "\"");
	490	free(tmp);
	491	free(tmp2);
	492	free(tmp3);
	493	free(tmp4);
	494	free(tmp5);
	495	free(useragent);
	496	cm_force_log(log);
	497	free(log);
	498
[21]	499	char* vhost = cm_strdup(config.hostname);
[32]	500	time_t cmtime = 0;
[70]	501	if(req.headers != NULL) {
[64]	502	for(i = 0; req.headers[i] != NULL; i += 2) {
	503	if(cm_strcaseequ(req.headers[i], "Host")) {
	504	free(vhost);
	505	vhost = cm_strdup(req.headers[i + 1]);
	506	} else if(cm_strcaseequ(req.headers[i], "If-Modified-Since")) {
	507	struct tm tm;
	508	strptime(req.headers[i + 1], "%a, %d %b %Y %H:%M:%S GMT", &tm);
[32]	509	#ifdef __MINGW32__
[64]	510	time_t t = 0;
	511	struct tm* btm = localtime(&t);
	512	cmtime = mktime(&tm);
	513	cmtime -= (btm->tm_hour * 60 + btm->tm_min) * 60;
[32]	514	#else
[140]	515	cmtime = timegm(&tm);
[32]	516	#endif
[64]	517	}
[21]	518	}
	519	}
[161]	520	bool rej = false;
[21]	521	cm_log("Server", "Host is %s", vhost);
	522	int port = s == NULL ? 80 : 443;
	523	char* host = cm_strdup(vhost);
[22]	524	for(i = 0; vhost[i] != 0; i++) {
	525	if(vhost[i] == ':') {
[21]	526	host[i] = 0;
	527	port = atoi(host + i + 1);
	528	break;
	529	}
	530	}
[136]	531	name = host;
[21]	532	cm_log("Server", "Hostname is `%s', port is `%d'", host, port);
	533	struct tw_config_entry* vhost_entry = tw_vhost_match(host, port);
[161]	534	#ifdef HAS_CHROOT
	535	char* chrootpath = vhost_entry->chroot_path != NULL ? vhost_entry->chroot_path : config.root.chroot_path;
	536	if(chrootpath != NULL) {
	537	if(chdir(chrootpath) == 0) {
	538	if(chroot(".") == 0) {
	539	cm_log("Server", "Chroot successful");
	540	}
	541	} else {
	542	cm_log("Server", "chdir() failed, cannot chroot");
	543	tw_http_error(s, sock, 500, name, port, vhost_entry);
	544	rej = true;
	545	}
	546	}
	547	#endif
[20]	548	for(i = 0; i < config.module_count; i++) {
	549	tw_mod_request_t mod_req = (tw_mod_request_t)tw_module_symbol(config.modules[i], "mod_request");
	550	if(mod_req != NULL) {
	551	int ret = mod_req(&tools, &req, &res);
	552	int co = ret & 0xff;
[141]	553	if(co == _TW_MODULE_PASS) {
	554	continue;
	555	} else if(co == _TW_MODULE_STOP) {
	556	/* Handle response here ... */
[20]	557	res._processed = true;
	558	break;
[141]	559	} else if(co == _TW_MODULE_STOP2) {
	560	res._processed = true;
	561	break;
	562	} else if(co == _TW_MODULE_ERROR) {
[123]	563	tw_http_error(s, sock, (ret & 0xffff00) >> 8, name, port, vhost_entry);
[20]	564	break;
	565	}
	566	}
	567	}
	568	if(!res._processed) {
[21]	569	cm_log("Server", "Document root is %s", vhost_entry->root == NULL ? "not set" : vhost_entry->root);
	570	char* path = cm_strcat(vhost_entry->root == NULL ? "" : vhost_entry->root, req.path);
	571	cm_log("Server", "Filesystem path is %s", path);
[70]	572	#ifdef __MINGW32__
[71]	573	char* rpath = cm_strdup(path);
[72]	574	for(i = strlen(rpath) - 1; i >= 0; i--) {
[73]	575	if(rpath[i] == '/') {
	576	int j;
	577	for(j = i + 1; rpath[j] != 0; j++) {
	578	if(rpath[j] == ':' \|\| rpath[j] == '.') {
	579	rpath[j] = 0;
	580	break;
	581	}
	582	}
[71]	583	break;
	584	}
	585	}
[70]	586	for(i = 0; i < sizeof(reserved_names) / sizeof(reserved_names[0]); i++) {
	587	char* n = cm_strcat("/", reserved_names[i]);
[71]	588	if(cm_nocase_endswith(rpath, n)) {
[124]	589	tw_http_error(s, sock, 403, name, port, vhost_entry);
[70]	590	free(n);
	591	rej = true;
	592	cm_log("Server", "XP Patch ; rejecting access to device");
	593	break;
	594	}
	595	free(n);
	596	}
[71]	597	free(rpath);
[70]	598	#endif
[21]	599	struct stat st;
[70]	600	if(!rej && stat(path, &st) == 0) {
[22]	601	if(!tw_permission_allowed(path, addr, req, vhost_entry)) {
[123]	602	tw_http_error(s, sock, 403, name, port, vhost_entry);
[22]	603	} else if(S_ISDIR(st.st_mode)) {
[24]	604	if(req.path[strlen(req.path) - 1] != '/') {
[61]	605	cm_log("Server", "Accessing directory without the slash at the end");
[24]	606	char* headers[3] = {"Location", cm_strcat(req.path, "/"), NULL};
[166]	607	_tw_process_page(s, sock, tw_http_status(301), NULL, NULL, NULL, 0, headers, 0, 0);
[24]	608	free(headers[1]);
	609	} else {
	610	char** indexes = vhost_entry->index_count == 0 ? config.root.indexes : vhost_entry->indexes;
	611	int index_count = vhost_entry->index_count == 0 ? config.root.index_count : vhost_entry->index_count;
	612	bool found = false;
	613	for(i = 0; i < index_count; i++) {
	614	char* p = cm_strcat3(path, "/", indexes[i]);
	615	FILE* f = fopen(p, "rb");
	616	if(f != NULL) {
	617	char* ext = NULL;
	618	int j;
	619	for(j = strlen(p) - 1; j >= 0; j--) {
	620	if(p[j] == '.') {
	621	ext = cm_strdup(p + j);
	622	break;
	623	} else if(p[j] == '/') {
	624	break;
	625	}
[22]	626	}
[24]	627	struct stat st;
	628	stat(p, &st);
	629	char* mime = tw_get_mime(ext, vhost_entry);
[32]	630	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, 0, 0);
[24]	631	fclose(f);
[74]	632	if(ext != NULL) free(ext);
[24]	633	free(p);
	634	found = true;
	635	break;
[22]	636	}
[24]	637	free(p);
	638	}
	639	if(!found) {
	640	char* str = malloc(1);
	641	str[0] = 0;
	642	char** items = cm_scandir(path);
[122]	643	addstring(&str, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n");
[24]	644	addstring(&str, "<html>\n");
	645	addstring(&str, " <head>\n");
	646	addstring(&str, " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n");
[122]	647	addstring(&str, " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n");
[24]	648	addstring(&str, " <title>Index of %h</title>\n", req.path);
	649	addstring(&str, " </head>\n");
	650	addstring(&str, " <body>\n");
	651	addstring(&str, " <h1>Index of %h</h1>\n", req.path);
	652	addstring(&str, " <hr>\n");
	653	addstring(&str, " <table border=\"0\">\n");
	654	addstring(&str, " <tr>\n");
	655	addstring(&str, " <th></th>\n");
	656	addstring(&str, " <th>Filename</th>\n");
[28]	657	addstring(&str, " <th>MIME</th>\n");
	658	addstring(&str, " <th>Size</th>\n");
[24]	659	addstring(&str, " </tr>\n");
[33]	660	int readme = -1;
	661	char** readmes = vhost_entry->readme_count == 0 ? config.root.readmes : vhost_entry->readmes;
	662	int readme_count = vhost_entry->readme_count == 0 ? config.root.readme_count : vhost_entry->readme_count;
[24]	663	if(items != NULL) {
[29]	664	int phase = 0;
	665	doit:
[24]	666	for(i = 0; items[i] != NULL; i++) {
[33]	667	int j;
[28]	668	char* fpth = cm_strcat3(path, "/", items[i]);
	669	struct stat s;
	670	char size[512];
	671	size[0] = 0;
	672	stat(fpth, &s);
[29]	673	if(phase == 0 && !S_ISDIR(s.st_mode)) {
	674	free(fpth);
	675	continue;
	676	} else if(phase == 1 && S_ISDIR(s.st_mode)) {
	677	free(fpth);
	678	continue;
	679	}
[33]	680	if(readme == -1) {
	681	for(j = 0; j < readme_count; j++) {
	682	if(strcmp(items[i], readmes[j]) == 0) {
	683	readme = j;
	684	break;
	685	}
	686	}
	687	if(readme != -1) {
	688	free(fpth);
	689	continue;
	690	}
	691	}
[29]	692	if(s.st_size < 1024ULL) {
[31]	693	sprintf(size, "%d", (int)s.st_size);
[29]	694	} else if(s.st_size < 1024ULL * 1024) {
	695	sprintf(size, "%.1fK", (double)s.st_size / 1024);
	696	} else if(s.st_size < 1024ULL * 1024 * 1024) {
	697	sprintf(size, "%.1fM", (double)s.st_size / 1024 / 1024);
	698	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024) {
	699	sprintf(size, "%.1fG", (double)s.st_size / 1024 / 1024 / 1024);
	700	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024 * 1024) {
	701	sprintf(size, "%.1fT", (double)s.st_size / 1024 / 1024 / 1024 / 1024);
[28]	702	}
	703
	704	free(fpth);
	705
[24]	706	char* ext = NULL;
	707	for(j = strlen(items[i]) - 1; j >= 0; j--) {
	708	if(items[i][j] == '.') {
	709	ext = cm_strdup(items[i] + j);
	710	break;
	711	} else if(items[i][j] == '/') {
	712	break;
	713	}
	714	}
[28]	715	char* showmime = "";
[24]	716	char* mime = tw_get_mime(ext, vhost_entry);
	717	if(strcmp(items[i], "../") == 0) {
	718	mime = "misc/parent";
[29]	719	size[0] = 0;
[24]	720	} else if(items[i][strlen(items[i]) - 1] == '/') {
	721	mime = "misc/dir";
[29]	722	size[0] = 0;
	723	} else {
[28]	724	showmime = mime;
[24]	725	}
	726	char* icon = tw_get_icon(mime, vhost_entry);
	727	if(ext != NULL) free(ext);
	728	char* itm = cm_strdup(items[i]);
	729	if(strlen(itm) >= 32) {
	730	if(itm[strlen(itm) - 1] == '/') {
	731	itm[31] = 0;
	732	itm[30] = '/';
	733	itm[29] = '.';
	734	itm[28] = '.';
	735	itm[27] = '.';
	736	} else {
	737	itm[31] = 0;
	738	itm[30] = '.';
	739	itm[29] = '.';
	740	itm[28] = '.';
	741	}
	742	}
	743	addstring(&str, "<tr>\n");
	744	addstring(&str, " <td><img src=\"%s\" alt=\"icon\"></td>\n", icon);
	745	addstring(&str, " <td><a href=\"%l\"><code>%h</code></a></td>\n", items[i], itm);
[60]	746	addstring(&str, " <td><code> %h </code></td>\n", showmime);
	747	addstring(&str, " <td><code> %s </code></td>\n", size);
[24]	748	addstring(&str, "</tr>\n");
	749	free(itm);
[22]	750	}
[29]	751	phase++;
	752	if(phase != 2) goto doit;
	753	for(i = 0; items[i] != NULL; i++) free(items[i]);
	754	free(items);
[22]	755	}
[24]	756	addstring(&str, " </table>\n");
[33]	757	if(readme != -1) {
	758	addstring(&str, "<hr>\n");
	759	char* fpth = cm_strcat3(path, "/", readmes[readme]);
	760	struct stat s;
	761	stat(fpth, &s);
	762	FILE* fr = fopen(fpth, "r");
	763	if(fr != NULL) {
	764	char* rmbuf = malloc(s.st_size + 1);
	765	rmbuf[s.st_size] = 0;
	766	fread(rmbuf, s.st_size, 1, fr);
	767	addstring(&str, "<pre><code>%h</code></pre>\n", rmbuf);
	768	fclose(fr);
[70]	769	free(rmbuf);
[33]	770	}
[66]	771	free(fpth);
[33]	772	}
[24]	773	addstring(&str, " <hr>\n");
[123]	774	int hp = vhost_entry->hideport == -1 ? config.root.hideport : vhost_entry->hideport;
	775	if(hp == 0) {
	776	addstring(&str, " <address>%s Server at %s Port %d</address>\n", tw_server, name, port);
	777	} else {
	778	addstring(&str, " <address>%s Server at %s</address>\n", tw_server, name, port);
	779	}
[24]	780	addstring(&str, " </body>\n");
	781	addstring(&str, "</html>\n");
[32]	782	tw_process_page(s, sock, tw_http_status(200), "text/html", NULL, str, strlen(str), 0, 0);
[24]	783	free(str);
[21]	784	}
	785	}
[22]	786	} else {
[21]	787	char* ext = NULL;
[22]	788	for(i = strlen(req.path) - 1; i >= 0; i--) {
	789	if(req.path[i] == '.') {
[21]	790	ext = cm_strdup(req.path + i);
	791	break;
[24]	792	} else if(req.path[i] == '/') {
	793	break;
[21]	794	}
	795	}
[22]	796	char* mime = tw_get_mime(ext, vhost_entry);
[21]	797	if(ext != NULL) free(ext);
	798	FILE* f = fopen(path, "rb");
[32]	799	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, st.st_mtime, cmtime);
[21]	800	fclose(f);
	801	}
[22]	802	} else {
[161]	803	if(!rej) {
	804	tw_http_error(s, sock, 404, name, port, vhost_entry);
	805	}
[21]	806	}
	807	free(path);
[20]	808	}
[21]	809	free(vhost);
	810	free(host);
[22]	811	} else if(ret == -1) {
[18]	812	} else {
[123]	813	tw_http_error(s, sock, 400, name, port, &config.root);
[17]	814	}
[70]	815	tw_free_request(&req);
[12]	816	cleanup:
[43]	817	#ifndef NO_SSL
[16]	818	if(sslworks) {
[15]	819	SSL_shutdown(s);
	820	}
	821	SSL_free(s);
[46]	822	#endif
[11]	823	close_socket(sock);
	824	#ifdef __MINGW32__
	825	_endthreadex(0);
[100]	826	#elif defined(__HAIKU__)
[105]	827	exit_thread(0);
[11]	828	#endif
[43]	829	;
[11]	830	}
	831
[62]	832	#ifdef SERVICE
	833	extern SERVICE_STATUS status;
	834	extern SERVICE_STATUS_HANDLE status_handle;
	835	#endif
	836
[101]	837	#if defined(__MINGW32__) \|\| defined(__HAIKU__)
[65]	838	struct thread_entry {
[101]	839	#ifdef __HAIKU__
	840	thread_id thread;
	841	#else
[65]	842	HANDLE handle;
[101]	843	#endif
[65]	844	bool used;
	845	};
	846	#endif
	847
[11]	848	void tw_server_loop(void) {
[68]	849	int i;
[101]	850	#if defined(__MINGW32__) \|\| defined(__HAIKU__)
[65]	851	struct thread_entry threads[2048];
[70]	852	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
[65]	853	threads[i].used = false;
	854	}
	855	#endif
[118]	856	#ifdef USE_POLL
	857	struct pollfd pollfds[sockcount];
	858	for(i = 0; i < sockcount; i++) {
	859	pollfds[i].fd = sockets[i];
	860	pollfds[i].events = POLLIN \| POLLPRI;
	861	}
	862	#else
	863	fd_set fdset;
	864	struct timeval tv;
	865	#endif
[11]	866	while(1) {
[118]	867	#ifdef USE_POLL
	868	int ret = poll(pollfds, sockcount, 1000);
	869	#else
	870	FD_ZERO(&fdset);
	871	for(i = 0; i < sockcount; i++) {
	872	FD_SET(sockets[i], &fdset);
	873	}
	874	tv.tv_sec = 1;
	875	tv.tv_usec = 0;
[86]	876	#ifdef __HAIKU__
[118]	877	int ret = select(32, &fdset, NULL, NULL, &tv);
[86]	878	#else
[105]	879	int ret = select(FD_SETSIZE, &fdset, NULL, NULL, &tv);
[86]	880	#endif
[118]	881	#endif
[11]	882	if(ret == -1) {
[84]	883	#ifndef __MINGW32__
	884	cm_log("Server", "Select failure: %s", strerror(errno));
	885	#endif
[9]	886	break;
[70]	887	} else if(ret == 0) {
[62]	888	#ifdef SERVICE
[70]	889	if(status.dwCurrentState == SERVICE_STOP_PENDING) {
[62]	890	break;
	891	}
	892	#endif
[11]	893	} else if(ret > 0) {
[9]	894	/* connection */
	895	int i;
[11]	896	for(i = 0; i < sockcount; i++) {
[118]	897	bool cond;
	898	#ifdef USE_POLL
	899	cond = pollfds[i].revents & POLLIN;
	900	#else
	901	cond = FD_ISSET(sockets[i], &fdset);
	902	#endif
	903	if(cond) {
[9]	904	SOCKADDR claddr;
	905	int clen = sizeof(claddr);
	906	int sock = accept(sockets[i], (struct sockaddr*)&claddr, &clen);
[12]	907	cm_log("Server", "New connection accepted");
[97]	908	#if defined(__MINGW32__) \|\| defined(__HAIKU__)
[11]	909	struct pass_entry* e = malloc(sizeof(*e));
	910	e->sock = sock;
	911	e->ssl = config.ports[i] & (1ULL << 32);
[12]	912	e->port = config.ports[i];
[21]	913	e->addr = claddr;
[97]	914	#endif
	915	#ifdef __MINGW32__
[65]	916	int j;
[70]	917	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	918	if(threads[j].used) {
[65]	919	DWORD ex;
	920	GetExitCodeThread(threads[j].handle, &ex);
[70]	921	if(ex != STILL_ACTIVE) {
[65]	922	CloseHandle(threads[j].handle);
	923	threads[j].used = false;
	924	}
	925	}
	926	}
[70]	927	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	928	if(!threads[j].used) {
[65]	929	threads[j].handle = (HANDLE)_beginthreadex(NULL, 0, tw_server_pass, e, 0, NULL);
	930	threads[j].used = true;
	931	break;
	932	}
	933	}
[97]	934	#elif defined(__HAIKU__)
[105]	935	int j;
	936	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	937	if(threads[j].used) {
	938	thread_info info;
	939	bool kill = false;
	940	if(get_thread_info(threads[j].thread, &info) == B_OK) {
	941	} else {
	942	kill = true;
	943	}
	944	if(kill) {
	945	threads[j].used = false;
	946	}
[101]	947	}
[105]	948	}
	949	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	950	if(!threads[j].used) {
	951	threads[j].thread = spawn_thread(tw_server_pass, "Tewi HTTPd", 60, e);
	952	threads[j].used = true;
	953	resume_thread(threads[j].thread);
	954	break;
[101]	955	}
	956	}
[11]	957	#else
	958	pid_t pid = fork();
	959	if(pid == 0) {
[89]	960	int j;
	961	for(j = 0; j < sockcount; j++) close_socket(sockets[j]);
[21]	962	tw_server_pass(sock, config.ports[i] & (1ULL << 32), config.ports[i], claddr);
[11]	963	_exit(0);
	964	} else {
	965	close_socket(sock);
	966	}
	967	#endif
[9]	968	}
	969	}
	970	}
	971	}
	972	}

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source: Main/trunk/Server/server.c@ 166

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