server.c@ 161

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Last change on this file since 161 was 161, checked in by Nishi, on Sep 25, 2024 at 10:35:04 PM
adding chroot
Property svn:keywords set to `Id`
File size: 25.7 KB

Rev	Line
[8]	1	/* $Id: server.c 161 2024-09-25 13:35:04Z 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__
[116]	33	#include <ws2tcpip.h>
	34	#include <wspiapi.h>
[8]	35	#include <winsock2.h>
[11]	36	#include <process.h>
[62]	37	#include <windows.h>
[32]	38
	39	#include "strptime.h"
[8]	40	#else
[118]	41	#ifdef USE_POLL
	42	#include <poll.h>
	43	#else
[8]	44	#include <sys/select.h>
[118]	45	#endif
[8]	46	#include <sys/socket.h>
	47	#include <arpa/inet.h>
	48	#include <netinet/in.h>
	49	#include <netinet/tcp.h>
[116]	50	#include <netdb.h>
[8]	51	#endif
	52
[97]	53	#ifdef __HAIKU__
	54	#include <OS.h>
	55	#endif
	56
[8]	57	extern struct tw_config config;
[18]	58	extern char tw_server[];
[8]	59
	60	int sockcount = 0;
	61
[9]	62	SOCKADDR addresses[MAX_PORTS];
	63	int sockets[MAX_PORTS];
[8]	64
[70]	65	#ifdef __MINGW32__
	66	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"};
	67	#endif
	68
[23]	69	/* https://qiita.com/gyu-don/items/5a640c6d2252a860c8cd */
	70	int tw_wildcard_match(const char* wildcard, const char* target) {
	71	const char pw = wildcard, pt = target;
	72
	73	while(1) {
	74	if(*pt == 0) {
	75	while(pw == '') pw++;
	76	return *pw == 0;
	77	} else if(*pw == 0) {
	78	return 0;
	79	} else if(pw == '') {
	80	return *(pw + 1) == 0 \|\| tw_wildcard_match(pw, pt + 1) \|\| tw_wildcard_match(pw + 1, pt);
	81	} else if(pw == '?' \|\| (pw == *pt)) {
	82	pw++;
	83	pt++;
	84	continue;
	85	} else {
	86	return 0;
	87	}
	88	}
	89	}
	90
[8]	91	void close_socket(int sock) {
[88]	92	#if defined(__MINGW32__)
[8]	93	closesocket(sock);
	94	#else
	95	close(sock);
	96	#endif
	97	}
	98
	99	int tw_server_init(void) {
	100	int i;
	101	#ifdef __MINGW32__
	102	WSADATA wsa;
	103	WSAStartup(MAKEWORD(2, 0), &wsa);
	104	#endif
	105	for(i = 0; config.ports[i] != -1; i++)
	106	;
	107	sockcount = i;
	108	for(i = 0; config.ports[i] != -1; i++) {
	109	#ifdef NO_IPV6
	110	int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	111	#else
	112	int sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
	113	#endif
	114	#ifdef __MINGW32__
	115	if(sock == INVALID_SOCKET)
	116	#else
	117	if(sock < 0)
	118	#endif
	119	{
	120	cm_log("Server", "Socket creation failure");
	121	return 1;
	122	}
	123	int yes = 1;
	124	if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(yes)) < 0) {
	125	close_socket(sock);
	126	cm_log("Server", "setsockopt failure (reuseaddr)");
	127	return 1;
	128	}
	129	if(setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&yes, sizeof(yes)) < 0) {
	130	close_socket(sock);
	131	cm_log("Server", "setsockopt failure (nodelay)");
	132	return 1;
	133	}
	134	#ifndef NO_IPV6
	135	int no = 0;
	136	if(setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&no, sizeof(no)) < 0) {
	137	close_socket(sock);
	138	cm_log("Server", "setsockopt failure (IPv6)");
	139	return 1;
	140	}
	141	#endif
	142	memset(&addresses[i], 0, sizeof(addresses[i]));
	143	#ifdef NO_IPV6
	144	addresses[i].sin_family = AF_INET;
	145	addresses[i].sin_addr.s_addr = INADDR_ANY;
	146	addresses[i].sin_port = htons(config.ports[i]);
	147	#else
	148	addresses[i].sin6_family = AF_INET6;
	149	addresses[i].sin6_addr = in6addr_any;
	150	addresses[i].sin6_port = htons(config.ports[i]);
	151	#endif
	152	if(bind(sock, (struct sockaddr*)&addresses[i], sizeof(addresses[i])) < 0) {
	153	close_socket(sock);
	154	cm_log("Server", "Bind failure");
	155	return 1;
	156	}
	157	if(listen(sock, 128) < 0) {
	158	close_socket(sock);
	159	cm_log("Server", "Listen failure");
	160	return 1;
	161	}
	162	sockets[i] = sock;
	163	}
	164	return 0;
	165	}
[9]	166
[16]	167	size_t tw_read(SSL* ssl, int s, void* data, size_t len) {
[43]	168	#ifndef NO_SSL
[16]	169	if(ssl == NULL) {
	170	return recv(s, data, len, 0);
	171	} else {
	172	return SSL_read(ssl, data, len);
	173	}
[43]	174	#else
	175	return recv(s, data, len, 0);
	176	#endif
[16]	177	}
	178
	179	size_t tw_write(SSL* ssl, int s, void* data, size_t len) {
[43]	180	#ifndef NO_SSL
[16]	181	if(ssl == NULL) {
	182	return send(s, data, len, 0);
	183	} else {
	184	return SSL_write(ssl, data, len);
	185	}
[43]	186	#else
	187	return send(s, data, len, 0);
	188	#endif
[16]	189	}
	190
[20]	191	#define ERROR_HTML \
[18]	192	"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n" \
	193	"<html>\n" \
	194	" <head>\n" \
[20]	195	" <title>%s</title>\n" \
[18]	196	" </head>\n" \
	197	" <body>\n" \
[20]	198	" <h1>%s</h1>\n" \
[18]	199	" <hr>\n" \
	200	" ", \
	201	address, \
	202	"\n" \
	203	" </body>\n" \
	204	"</html>\n"
	205
[32]	206	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]	207	char construct[512];
[32]	208	if(mtime != 0 && cmtime != 0 && mtime <= cmtime) {
	209	status = "304 Not Modified";
	210	type = NULL;
	211	size = 0;
	212	headers = NULL;
	213	f = NULL;
	214	doc = NULL;
	215	}
[18]	216	sprintf(construct, "%llu", (unsigned long long)size);
	217	tw_write(ssl, sock, "HTTP/1.1 ", 9);
	218	tw_write(ssl, sock, (char*)status, strlen(status));
	219	tw_write(ssl, sock, "\r\n", 2);
[24]	220	if(type != NULL) {
	221	tw_write(ssl, sock, "Content-Type: ", 7 + 5 + 2);
	222	tw_write(ssl, sock, (char*)type, strlen(type));
	223	tw_write(ssl, sock, "\r\n", 2);
	224	}
[18]	225	tw_write(ssl, sock, "Server: ", 6 + 2);
	226	tw_write(ssl, sock, tw_server, strlen(tw_server));
	227	tw_write(ssl, sock, "\r\n", 2);
[24]	228	if(size != 0) {
	229	tw_write(ssl, sock, "Content-Length: ", 7 + 7 + 2);
	230	tw_write(ssl, sock, construct, strlen(construct));
	231	tw_write(ssl, sock, "\r\n", 2);
[32]	232	if(mtime != 0) {
	233	struct tm* tm = gmtime(&mtime);
	234	char date[513];
	235	strftime(date, 512, "%a, %d %b %Y %H:%M:%S GMT", tm);
	236	tw_write(ssl, sock, "Last-Modified: ", 5 + 8 + 2);
	237	tw_write(ssl, sock, date, strlen(date));
	238	tw_write(ssl, sock, "\r\n", 2);
	239	}
[24]	240	}
	241	int i;
	242	if(headers != NULL) {
	243	for(i = 0; headers[i] != NULL; i += 2) {
	244	tw_write(ssl, sock, headers[i], strlen(headers[i]));
	245	tw_write(ssl, sock, ": ", 2);
	246	tw_write(ssl, sock, headers[i + 1], strlen(headers[i + 1]));
	247	tw_write(ssl, sock, "\r\n", 2);
	248	}
	249	}
[18]	250	tw_write(ssl, sock, "\r\n", 2);
[24]	251	if(doc == NULL && f == NULL) return;
[18]	252	size_t incr = 0;
	253	while(1) {
[22]	254	if(f != NULL) {
[21]	255	char buffer[128];
	256	fread(buffer, size < 128 ? size : 128, 1, f);
	257	tw_write(ssl, sock, buffer, size < 128 ? size : 128);
[22]	258	} else {
[21]	259	tw_write(ssl, sock, (unsigned char*)doc + incr, size < 128 ? size : 128);
	260	}
[18]	261	incr += 128;
[19]	262	if(size <= 128) break;
[18]	263	size -= 128;
	264	}
	265	}
	266
[32]	267	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]	268
[18]	269	const char* tw_http_status(int code) {
[20]	270	if(code == 200) {
	271	return "200 OK";
[24]	272	} else if(code == 308) {
	273	return "308 Permanent Redirect";
[20]	274	} else if(code == 400) {
[18]	275	return "400 Bad Request";
[20]	276	} else if(code == 401) {
	277	return "401 Unauthorized";
	278	} else if(code == 403) {
	279	return "403 Forbidden";
	280	} else if(code == 404) {
	281	return "404 Not Found";
[161]	282	} else if(code == 500) {
	283	return "500 Internal Server Error";
[18]	284	} else {
	285	return "400 Bad Request";
	286	}
	287	}
	288
[123]	289	char* tw_http_default_error(int code, char* name, int port, struct tw_config_entry* vhost) {
[18]	290	char address[1024];
[20]	291
[123]	292	if((vhost->hideport == -1 ? config.root.hideport : vhost->hideport) == 1) {
	293	sprintf(address, "<address>%s Server at %s</address>", tw_server, name, port);
	294	} else {
	295	sprintf(address, "<address>%s Server at %s Port %d</address>", tw_server, name, port);
	296	}
	297
[20]	298	char* st = cm_strdup(tw_http_status(code));
	299	char* st2;
	300	int i;
	301	for(i = 0; st[i] != 0; i++) {
	302	if(st[i] == ' ') {
	303	st2 = cm_strdup(st + i + 1);
	304	break;
	305	}
[18]	306	}
[20]	307	char* buffer = malloc(4096);
	308	char* str = cm_strcat3(ERROR_HTML);
	309	sprintf(buffer, str, st, st2);
	310	free(str);
	311	free(st);
	312	return buffer;
[18]	313	}
	314
[123]	315	void tw_http_error(SSL* ssl, int sock, int error, char* name, int port, struct tw_config_entry* vhost) {
	316	char* str = tw_http_default_error(error, name, port, vhost);
[32]	317	tw_process_page(ssl, sock, tw_http_status(error), "text/html", NULL, str, strlen(str), 0, 0);
[18]	318	free(str);
	319	}
	320
[20]	321	void addstring(char** str, const char* add, ...) {
	322	int i;
	323	char cbuf[2];
	324	cbuf[1] = 0;
	325	va_list va;
	326	va_start(va, add);
	327	for(i = 0; add[i] != 0; i++) {
	328	cbuf[0] = add[i];
	329	if(add[i] == '%') {
	330	i++;
	331	if(add[i] == 's') {
	332	char* tmp = *str;
	333	str = cm_strcat(tmp, va_arg(va, const char));
	334	free(tmp);
	335	} else if(add[i] == 'h') {
	336	char* h = cm_html_escape(va_arg(va, const char*));
	337	char* tmp = *str;
	338	*str = cm_strcat(tmp, h);
	339	free(tmp);
	340	free(h);
[21]	341	} else if(add[i] == 'l') {
	342	char* h = cm_url_escape(va_arg(va, const char*));
	343	char* tmp = *str;
	344	*str = cm_strcat(tmp, h);
	345	free(tmp);
	346	free(h);
[20]	347	} else if(add[i] == 'd') {
	348	int n = va_arg(va, int);
	349	char* h = malloc(512);
	350	sprintf(h, "%d", n);
	351	char* tmp = *str;
	352	*str = cm_strcat(tmp, h);
	353	free(tmp);
	354	free(h);
	355	} else if(add[i] == '%') {
	356	char* tmp = *str;
	357	*str = cm_strcat(tmp, "%");
	358	free(tmp);
	359	}
	360	} else {
	361	char* tmp = *str;
	362	*str = cm_strcat(tmp, cbuf);
	363	free(tmp);
	364	}
	365	}
[74]	366	va_end(va);
[20]	367	}
	368
[22]	369	char* tw_get_mime(const char* ext, struct tw_config_entry* vhost_entry) {
	370	char* mime = "application/octet-stream";
	371	if(ext == NULL) return mime;
	372	bool set = false;
	373	int i;
	374	for(i = 0; i < vhost_entry->mime_count; i++) {
[23]	375	if(strcmp(vhost_entry->mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(vhost_entry->mimes[i].ext, ext))) {
[22]	376	mime = vhost_entry->mimes[i].mime;
	377	set = true;
	378	}
	379	}
	380	if(!set) {
	381	for(i = 0; i < config.root.mime_count; i++) {
[23]	382	if(strcmp(config.root.mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(config.root.mimes[i].ext, ext))) {
[22]	383	mime = config.root.mimes[i].mime;
	384	}
	385	}
	386	}
	387	return mime;
	388	}
	389
	390	char* tw_get_icon(const char* mime, struct tw_config_entry* vhost_entry) {
	391	char* icon = "";
	392	if(mime == NULL) return "";
	393	bool set = false;
	394	int i;
	395	for(i = 0; i < vhost_entry->icon_count; i++) {
[23]	396	if(strcmp(vhost_entry->icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(vhost_entry->icons[i].mime, mime))) {
[22]	397	icon = vhost_entry->icons[i].icon;
	398	set = true;
	399	}
	400	}
	401	if(!set) {
	402	for(i = 0; i < config.root.icon_count; i++) {
[23]	403	if(strcmp(config.root.icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(config.root.icons[i].mime, mime))) {
[22]	404	icon = config.root.icons[i].icon;
	405	}
	406	}
	407	}
	408	return icon;
	409	}
	410
[11]	411	struct pass_entry {
	412	int sock;
[12]	413	int port;
[11]	414	bool ssl;
[21]	415	SOCKADDR addr;
[11]	416	};
	417
[97]	418	#ifdef __MINGW32__
[11]	419	unsigned int WINAPI tw_server_pass(void* ptr) {
[97]	420	#elif defined(__HAIKU__)
	421	int32_t tw_server_pass(void* ptr) {
[105]	422	#endif
	423	#if defined(__HAIKU__) \|\| defined(__MINGW32__)
[11]	424	int sock = ((struct pass_entry*)ptr)->sock;
	425	bool ssl = ((struct pass_entry*)ptr)->ssl;
[14]	426	int port = ((struct pass_entry*)ptr)->port;
[21]	427	SOCKADDR addr = ((struct pass_entry*)ptr)->addr;
[12]	428	free(ptr);
[11]	429	#else
[105]	430	void tw_server_pass(int sock, bool ssl, int port, SOCKADDR addr) {
[11]	431	#endif
[13]	432	char* name = config.hostname;
	433
[43]	434	#ifndef NO_SSL
[12]	435	SSL_CTX* ctx = NULL;
	436	SSL* s = NULL;
[15]	437	bool sslworks = false;
[12]	438	if(ssl) {
	439	ctx = tw_create_ssl_ctx(port);
	440	s = SSL_new(ctx);
	441	SSL_set_fd(s, sock);
	442	if(SSL_accept(s) <= 0) goto cleanup;
[15]	443	sslworks = true;
[12]	444	}
[43]	445	#else
[105]	446	void* s = NULL;
[43]	447	#endif
[116]	448
	449	char address[513];
	450	address[0] = 0;
	451	struct sockaddr* sa = (struct sockaddr*)&addr;
	452	getnameinfo(sa, sizeof(addr), address, 512, NULL, 0, NI_NUMERICHOST);
	453
[16]	454	struct tw_http_request req;
[20]	455	struct tw_http_response res;
	456	struct tw_tool tools;
	457	res._processed = false;
	458	tw_init_tools(&tools);
[16]	459	int ret = tw_http_parse(s, sock, &req);
[17]	460	if(ret == 0) {
[116]	461	char date[513];
	462	time_t t = time(NULL);
	463	struct tm* tm = localtime(&t);
	464	strftime(date, 512, "%a, %d %b %Y %H:%M:%S %Z", tm);
	465
	466	char* useragent = cm_strdup("");
	467
	468	int i;
[117]	469	for(i = 0; req.headers[i] != NULL; i += 2) {
	470	if(cm_strcaseequ(req.headers[i], "User-Agent")) {
[116]	471	free(useragent);
	472	useragent = cm_strdup(req.headers[i + 1]);
	473	}
	474	}
	475
	476	char* tmp = cm_strcat3(address, " - [", date);
	477	char* tmp2 = cm_strcat3(tmp, "] \"", req.method);
	478	char* tmp3 = cm_strcat3(tmp2, " ", req.path);
	479	char* tmp4 = cm_strcat3(tmp3, " ", req.version);
	480	char* tmp5 = cm_strcat3(tmp4, "\" \"", useragent);
	481	char* log = cm_strcat(tmp5, "\"");
	482	free(tmp);
	483	free(tmp2);
	484	free(tmp3);
	485	free(tmp4);
	486	free(tmp5);
	487	free(useragent);
	488	cm_force_log(log);
	489	free(log);
	490
[21]	491	char* vhost = cm_strdup(config.hostname);
[32]	492	time_t cmtime = 0;
[70]	493	if(req.headers != NULL) {
[64]	494	for(i = 0; req.headers[i] != NULL; i += 2) {
	495	if(cm_strcaseequ(req.headers[i], "Host")) {
	496	free(vhost);
	497	vhost = cm_strdup(req.headers[i + 1]);
	498	} else if(cm_strcaseequ(req.headers[i], "If-Modified-Since")) {
	499	struct tm tm;
	500	strptime(req.headers[i + 1], "%a, %d %b %Y %H:%M:%S GMT", &tm);
[32]	501	#ifdef __MINGW32__
[64]	502	time_t t = 0;
	503	struct tm* btm = localtime(&t);
	504	cmtime = mktime(&tm);
	505	cmtime -= (btm->tm_hour * 60 + btm->tm_min) * 60;
[32]	506	#else
[140]	507	cmtime = timegm(&tm);
[32]	508	#endif
[64]	509	}
[21]	510	}
	511	}
[161]	512	bool rej = false;
[21]	513	cm_log("Server", "Host is %s", vhost);
	514	int port = s == NULL ? 80 : 443;
	515	char* host = cm_strdup(vhost);
[22]	516	for(i = 0; vhost[i] != 0; i++) {
	517	if(vhost[i] == ':') {
[21]	518	host[i] = 0;
	519	port = atoi(host + i + 1);
	520	break;
	521	}
	522	}
[136]	523	name = host;
[21]	524	cm_log("Server", "Hostname is `%s', port is `%d'", host, port);
	525	struct tw_config_entry* vhost_entry = tw_vhost_match(host, port);
[161]	526	#ifdef HAS_CHROOT
	527	char* chrootpath = vhost_entry->chroot_path != NULL ? vhost_entry->chroot_path : config.root.chroot_path;
	528	if(chrootpath != NULL) {
	529	if(chdir(chrootpath) == 0) {
	530	if(chroot(".") == 0) {
	531	cm_log("Server", "Chroot successful");
	532	}
	533	} else {
	534	cm_log("Server", "chdir() failed, cannot chroot");
	535	tw_http_error(s, sock, 500, name, port, vhost_entry);
	536	rej = true;
	537	}
	538	}
	539	#endif
[20]	540	for(i = 0; i < config.module_count; i++) {
	541	tw_mod_request_t mod_req = (tw_mod_request_t)tw_module_symbol(config.modules[i], "mod_request");
	542	if(mod_req != NULL) {
	543	int ret = mod_req(&tools, &req, &res);
	544	int co = ret & 0xff;
[141]	545	if(co == _TW_MODULE_PASS) {
	546	continue;
	547	} else if(co == _TW_MODULE_STOP) {
	548	/* Handle response here ... */
[20]	549	res._processed = true;
	550	break;
[141]	551	} else if(co == _TW_MODULE_STOP2) {
	552	res._processed = true;
	553	break;
	554	} else if(co == _TW_MODULE_ERROR) {
[123]	555	tw_http_error(s, sock, (ret & 0xffff00) >> 8, name, port, vhost_entry);
[20]	556	break;
	557	}
	558	}
	559	}
	560	if(!res._processed) {
[21]	561	cm_log("Server", "Document root is %s", vhost_entry->root == NULL ? "not set" : vhost_entry->root);
	562	char* path = cm_strcat(vhost_entry->root == NULL ? "" : vhost_entry->root, req.path);
	563	cm_log("Server", "Filesystem path is %s", path);
[70]	564	#ifdef __MINGW32__
[71]	565	char* rpath = cm_strdup(path);
[72]	566	for(i = strlen(rpath) - 1; i >= 0; i--) {
[73]	567	if(rpath[i] == '/') {
	568	int j;
	569	for(j = i + 1; rpath[j] != 0; j++) {
	570	if(rpath[j] == ':' \|\| rpath[j] == '.') {
	571	rpath[j] = 0;
	572	break;
	573	}
	574	}
[71]	575	break;
	576	}
	577	}
[70]	578	for(i = 0; i < sizeof(reserved_names) / sizeof(reserved_names[0]); i++) {
	579	char* n = cm_strcat("/", reserved_names[i]);
[71]	580	if(cm_nocase_endswith(rpath, n)) {
[124]	581	tw_http_error(s, sock, 403, name, port, vhost_entry);
[70]	582	free(n);
	583	rej = true;
	584	cm_log("Server", "XP Patch ; rejecting access to device");
	585	break;
	586	}
	587	free(n);
	588	}
[71]	589	free(rpath);
[70]	590	#endif
[21]	591	struct stat st;
[70]	592	if(!rej && stat(path, &st) == 0) {
[22]	593	if(!tw_permission_allowed(path, addr, req, vhost_entry)) {
[123]	594	tw_http_error(s, sock, 403, name, port, vhost_entry);
[22]	595	} else if(S_ISDIR(st.st_mode)) {
[24]	596	if(req.path[strlen(req.path) - 1] != '/') {
[61]	597	cm_log("Server", "Accessing directory without the slash at the end");
[24]	598	char* headers[3] = {"Location", cm_strcat(req.path, "/"), NULL};
[32]	599	_tw_process_page(s, sock, tw_http_status(308), NULL, NULL, NULL, 0, headers, 0, 0);
[24]	600	free(headers[1]);
	601	} else {
	602	char** indexes = vhost_entry->index_count == 0 ? config.root.indexes : vhost_entry->indexes;
	603	int index_count = vhost_entry->index_count == 0 ? config.root.index_count : vhost_entry->index_count;
	604	bool found = false;
	605	for(i = 0; i < index_count; i++) {
	606	char* p = cm_strcat3(path, "/", indexes[i]);
	607	FILE* f = fopen(p, "rb");
	608	if(f != NULL) {
	609	char* ext = NULL;
	610	int j;
	611	for(j = strlen(p) - 1; j >= 0; j--) {
	612	if(p[j] == '.') {
	613	ext = cm_strdup(p + j);
	614	break;
	615	} else if(p[j] == '/') {
	616	break;
	617	}
[22]	618	}
[24]	619	struct stat st;
	620	stat(p, &st);
	621	char* mime = tw_get_mime(ext, vhost_entry);
[32]	622	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, 0, 0);
[24]	623	fclose(f);
[74]	624	if(ext != NULL) free(ext);
[24]	625	free(p);
	626	found = true;
	627	break;
[22]	628	}
[24]	629	free(p);
	630	}
	631	if(!found) {
	632	char* str = malloc(1);
	633	str[0] = 0;
	634	char** items = cm_scandir(path);
[122]	635	addstring(&str, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n");
[24]	636	addstring(&str, "<html>\n");
	637	addstring(&str, " <head>\n");
	638	addstring(&str, " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n");
[122]	639	addstring(&str, " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n");
[24]	640	addstring(&str, " <title>Index of %h</title>\n", req.path);
	641	addstring(&str, " </head>\n");
	642	addstring(&str, " <body>\n");
	643	addstring(&str, " <h1>Index of %h</h1>\n", req.path);
	644	addstring(&str, " <hr>\n");
	645	addstring(&str, " <table border=\"0\">\n");
	646	addstring(&str, " <tr>\n");
	647	addstring(&str, " <th></th>\n");
	648	addstring(&str, " <th>Filename</th>\n");
[28]	649	addstring(&str, " <th>MIME</th>\n");
	650	addstring(&str, " <th>Size</th>\n");
[24]	651	addstring(&str, " </tr>\n");
[33]	652	int readme = -1;
	653	char** readmes = vhost_entry->readme_count == 0 ? config.root.readmes : vhost_entry->readmes;
	654	int readme_count = vhost_entry->readme_count == 0 ? config.root.readme_count : vhost_entry->readme_count;
[24]	655	if(items != NULL) {
[29]	656	int phase = 0;
	657	doit:
[24]	658	for(i = 0; items[i] != NULL; i++) {
[33]	659	int j;
[28]	660	char* fpth = cm_strcat3(path, "/", items[i]);
	661	struct stat s;
	662	char size[512];
	663	size[0] = 0;
	664	stat(fpth, &s);
[29]	665	if(phase == 0 && !S_ISDIR(s.st_mode)) {
	666	free(fpth);
	667	continue;
	668	} else if(phase == 1 && S_ISDIR(s.st_mode)) {
	669	free(fpth);
	670	continue;
	671	}
[33]	672	if(readme == -1) {
	673	for(j = 0; j < readme_count; j++) {
	674	if(strcmp(items[i], readmes[j]) == 0) {
	675	readme = j;
	676	break;
	677	}
	678	}
	679	if(readme != -1) {
	680	free(fpth);
	681	continue;
	682	}
	683	}
[29]	684	if(s.st_size < 1024ULL) {
[31]	685	sprintf(size, "%d", (int)s.st_size);
[29]	686	} else if(s.st_size < 1024ULL * 1024) {
	687	sprintf(size, "%.1fK", (double)s.st_size / 1024);
	688	} else if(s.st_size < 1024ULL * 1024 * 1024) {
	689	sprintf(size, "%.1fM", (double)s.st_size / 1024 / 1024);
	690	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024) {
	691	sprintf(size, "%.1fG", (double)s.st_size / 1024 / 1024 / 1024);
	692	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024 * 1024) {
	693	sprintf(size, "%.1fT", (double)s.st_size / 1024 / 1024 / 1024 / 1024);
[28]	694	}
	695
	696	free(fpth);
	697
[24]	698	char* ext = NULL;
	699	for(j = strlen(items[i]) - 1; j >= 0; j--) {
	700	if(items[i][j] == '.') {
	701	ext = cm_strdup(items[i] + j);
	702	break;
	703	} else if(items[i][j] == '/') {
	704	break;
	705	}
	706	}
[28]	707	char* showmime = "";
[24]	708	char* mime = tw_get_mime(ext, vhost_entry);
	709	if(strcmp(items[i], "../") == 0) {
	710	mime = "misc/parent";
[29]	711	size[0] = 0;
[24]	712	} else if(items[i][strlen(items[i]) - 1] == '/') {
	713	mime = "misc/dir";
[29]	714	size[0] = 0;
	715	} else {
[28]	716	showmime = mime;
[24]	717	}
	718	char* icon = tw_get_icon(mime, vhost_entry);
	719	if(ext != NULL) free(ext);
	720	char* itm = cm_strdup(items[i]);
	721	if(strlen(itm) >= 32) {
	722	if(itm[strlen(itm) - 1] == '/') {
	723	itm[31] = 0;
	724	itm[30] = '/';
	725	itm[29] = '.';
	726	itm[28] = '.';
	727	itm[27] = '.';
	728	} else {
	729	itm[31] = 0;
	730	itm[30] = '.';
	731	itm[29] = '.';
	732	itm[28] = '.';
	733	}
	734	}
	735	addstring(&str, "<tr>\n");
	736	addstring(&str, " <td><img src=\"%s\" alt=\"icon\"></td>\n", icon);
	737	addstring(&str, " <td><a href=\"%l\"><code>%h</code></a></td>\n", items[i], itm);
[60]	738	addstring(&str, " <td><code> %h </code></td>\n", showmime);
	739	addstring(&str, " <td><code> %s </code></td>\n", size);
[24]	740	addstring(&str, "</tr>\n");
	741	free(itm);
[22]	742	}
[29]	743	phase++;
	744	if(phase != 2) goto doit;
	745	for(i = 0; items[i] != NULL; i++) free(items[i]);
	746	free(items);
[22]	747	}
[24]	748	addstring(&str, " </table>\n");
[33]	749	if(readme != -1) {
	750	addstring(&str, "<hr>\n");
	751	char* fpth = cm_strcat3(path, "/", readmes[readme]);
	752	struct stat s;
	753	stat(fpth, &s);
	754	FILE* fr = fopen(fpth, "r");
	755	if(fr != NULL) {
	756	char* rmbuf = malloc(s.st_size + 1);
	757	rmbuf[s.st_size] = 0;
	758	fread(rmbuf, s.st_size, 1, fr);
	759	addstring(&str, "<pre><code>%h</code></pre>\n", rmbuf);
	760	fclose(fr);
[70]	761	free(rmbuf);
[33]	762	}
[66]	763	free(fpth);
[33]	764	}
[24]	765	addstring(&str, " <hr>\n");
[123]	766	int hp = vhost_entry->hideport == -1 ? config.root.hideport : vhost_entry->hideport;
	767	if(hp == 0) {
	768	addstring(&str, " <address>%s Server at %s Port %d</address>\n", tw_server, name, port);
	769	} else {
	770	addstring(&str, " <address>%s Server at %s</address>\n", tw_server, name, port);
	771	}
[24]	772	addstring(&str, " </body>\n");
	773	addstring(&str, "</html>\n");
[32]	774	tw_process_page(s, sock, tw_http_status(200), "text/html", NULL, str, strlen(str), 0, 0);
[24]	775	free(str);
[21]	776	}
	777	}
[22]	778	} else {
[21]	779	char* ext = NULL;
[22]	780	for(i = strlen(req.path) - 1; i >= 0; i--) {
	781	if(req.path[i] == '.') {
[21]	782	ext = cm_strdup(req.path + i);
	783	break;
[24]	784	} else if(req.path[i] == '/') {
	785	break;
[21]	786	}
	787	}
[22]	788	char* mime = tw_get_mime(ext, vhost_entry);
[21]	789	if(ext != NULL) free(ext);
	790	FILE* f = fopen(path, "rb");
[32]	791	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, st.st_mtime, cmtime);
[21]	792	fclose(f);
	793	}
[22]	794	} else {
[161]	795	if(!rej) {
	796	tw_http_error(s, sock, 404, name, port, vhost_entry);
	797	}
[21]	798	}
	799	free(path);
[20]	800	}
[21]	801	free(vhost);
	802	free(host);
[22]	803	} else if(ret == -1) {
[18]	804	} else {
[123]	805	tw_http_error(s, sock, 400, name, port, &config.root);
[17]	806	}
[70]	807	tw_free_request(&req);
[12]	808	cleanup:
[43]	809	#ifndef NO_SSL
[16]	810	if(sslworks) {
[15]	811	SSL_shutdown(s);
	812	}
	813	SSL_free(s);
[46]	814	#endif
[11]	815	close_socket(sock);
	816	#ifdef __MINGW32__
	817	_endthreadex(0);
[100]	818	#elif defined(__HAIKU__)
[105]	819	exit_thread(0);
[11]	820	#endif
[43]	821	;
[11]	822	}
	823
[62]	824	#ifdef SERVICE
	825	extern SERVICE_STATUS status;
	826	extern SERVICE_STATUS_HANDLE status_handle;
	827	#endif
	828
[101]	829	#if defined(__MINGW32__) \|\| defined(__HAIKU__)
[65]	830	struct thread_entry {
[101]	831	#ifdef __HAIKU__
	832	thread_id thread;
	833	#else
[65]	834	HANDLE handle;
[101]	835	#endif
[65]	836	bool used;
	837	};
	838	#endif
	839
[11]	840	void tw_server_loop(void) {
[68]	841	int i;
[101]	842	#if defined(__MINGW32__) \|\| defined(__HAIKU__)
[65]	843	struct thread_entry threads[2048];
[70]	844	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
[65]	845	threads[i].used = false;
	846	}
	847	#endif
[118]	848	#ifdef USE_POLL
	849	struct pollfd pollfds[sockcount];
	850	for(i = 0; i < sockcount; i++) {
	851	pollfds[i].fd = sockets[i];
	852	pollfds[i].events = POLLIN \| POLLPRI;
	853	}
	854	#else
	855	fd_set fdset;
	856	struct timeval tv;
	857	#endif
[11]	858	while(1) {
[118]	859	#ifdef USE_POLL
	860	int ret = poll(pollfds, sockcount, 1000);
	861	#else
	862	FD_ZERO(&fdset);
	863	for(i = 0; i < sockcount; i++) {
	864	FD_SET(sockets[i], &fdset);
	865	}
	866	tv.tv_sec = 1;
	867	tv.tv_usec = 0;
[86]	868	#ifdef __HAIKU__
[118]	869	int ret = select(32, &fdset, NULL, NULL, &tv);
[86]	870	#else
[105]	871	int ret = select(FD_SETSIZE, &fdset, NULL, NULL, &tv);
[86]	872	#endif
[118]	873	#endif
[11]	874	if(ret == -1) {
[84]	875	#ifndef __MINGW32__
	876	cm_log("Server", "Select failure: %s", strerror(errno));
	877	#endif
[9]	878	break;
[70]	879	} else if(ret == 0) {
[62]	880	#ifdef SERVICE
[70]	881	if(status.dwCurrentState == SERVICE_STOP_PENDING) {
[62]	882	break;
	883	}
	884	#endif
[11]	885	} else if(ret > 0) {
[9]	886	/* connection */
	887	int i;
[11]	888	for(i = 0; i < sockcount; i++) {
[118]	889	bool cond;
	890	#ifdef USE_POLL
	891	cond = pollfds[i].revents & POLLIN;
	892	#else
	893	cond = FD_ISSET(sockets[i], &fdset);
	894	#endif
	895	if(cond) {
[9]	896	SOCKADDR claddr;
	897	int clen = sizeof(claddr);
	898	int sock = accept(sockets[i], (struct sockaddr*)&claddr, &clen);
[12]	899	cm_log("Server", "New connection accepted");
[97]	900	#if defined(__MINGW32__) \|\| defined(__HAIKU__)
[11]	901	struct pass_entry* e = malloc(sizeof(*e));
	902	e->sock = sock;
	903	e->ssl = config.ports[i] & (1ULL << 32);
[12]	904	e->port = config.ports[i];
[21]	905	e->addr = claddr;
[97]	906	#endif
	907	#ifdef __MINGW32__
[65]	908	int j;
[70]	909	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	910	if(threads[j].used) {
[65]	911	DWORD ex;
	912	GetExitCodeThread(threads[j].handle, &ex);
[70]	913	if(ex != STILL_ACTIVE) {
[65]	914	CloseHandle(threads[j].handle);
	915	threads[j].used = false;
	916	}
	917	}
	918	}
[70]	919	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	920	if(!threads[j].used) {
[65]	921	threads[j].handle = (HANDLE)_beginthreadex(NULL, 0, tw_server_pass, e, 0, NULL);
	922	threads[j].used = true;
	923	break;
	924	}
	925	}
[97]	926	#elif defined(__HAIKU__)
[105]	927	int j;
	928	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	929	if(threads[j].used) {
	930	thread_info info;
	931	bool kill = false;
	932	if(get_thread_info(threads[j].thread, &info) == B_OK) {
	933	} else {
	934	kill = true;
	935	}
	936	if(kill) {
	937	threads[j].used = false;
	938	}
[101]	939	}
[105]	940	}
	941	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	942	if(!threads[j].used) {
	943	threads[j].thread = spawn_thread(tw_server_pass, "Tewi HTTPd", 60, e);
	944	threads[j].used = true;
	945	resume_thread(threads[j].thread);
	946	break;
[101]	947	}
	948	}
[11]	949	#else
	950	pid_t pid = fork();
	951	if(pid == 0) {
[89]	952	int j;
	953	for(j = 0; j < sockcount; j++) close_socket(sockets[j]);
[21]	954	tw_server_pass(sock, config.ports[i] & (1ULL << 32), config.ports[i], claddr);
[11]	955	_exit(0);
	956	} else {
	957	close_socket(sock);
	958	}
	959	#endif
[9]	960	}
	961	}
	962	}
	963	}
	964	}

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source: Main/trunk/Server/server.c@ 161

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