server.c@ 215

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Last change on this file since 215 was 215, checked in by Nishi, on Oct 3, 2024 at 4:24:43 AM
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1	/* $Id: server.c 215 2024-10-02 19:24:43Z nishi $ */
2
3	#define SOURCE
4
5	#include "../config.h"
6
7	#include "tw_server.h"
8
9	#ifndef NO_SSL
10	#include "tw_ssl.h"
11	#endif
12
13	#include "tw_config.h"
14	#include "tw_http.h"
15	#include "tw_module.h"
16	#include "tw_version.h"
17
18	#if !defined(_MSC_VER) && !defined(__BORLANDC__)
19	#include <unistd.h>
20	#endif
21	#include <string.h>
22	#include <stdbool.h>
23	#include <stdarg.h>
24	#include <stdio.h>
25	#include <stdlib.h>
26	#include <errno.h>
27	#include <sys/types.h>
28	#include <sys/stat.h>
29	#include <time.h>
30
31	#include <cm_string.h>
32	#include <cm_log.h>
33	#include <cm_dir.h>
34
35	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
36	#ifndef NO_GETADDRINFO
37	#include <ws2tcpip.h>
38	#include <wspiapi.h>
39	#endif
40	#include <winsock2.h>
41	#include <process.h>
42	#include <windows.h>
43
44	#include "strptime.h"
45	#else
46	#ifdef USE_POLL
47	#ifdef __PPU__
48	#include <net/poll.h>
49	#else
50	#include <poll.h>
51	#endif
52	#else
53	#include <sys/select.h>
54	#endif
55	#include <sys/socket.h>
56	#include <arpa/inet.h>
57	#include <netinet/in.h>
58	#ifndef __PPU__
59	#include <netinet/tcp.h>
60	#endif
61	#ifndef NO_GETADDRINFO
62	#include <netdb.h>
63	#endif
64	#endif
65
66	#if defined(_PSP) \|\| defined(__ps2sdk__)
67	#include "strptime.h"
68	#endif
69
70	#ifdef __HAIKU__
71	#include <OS.h>
72	#endif
73
74	#ifndef S_ISDIR
75	#define S_ISDIR(x) ((x) & _S_IFDIR)
76	#endif
77
78	extern struct tw_config config;
79	extern char tw_server[];
80
81	int sockcount = 0;
82
83	SOCKADDR addresses[MAX_PORTS];
84	int sockets[MAX_PORTS];
85
86	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
87	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"};
88	#endif
89
90	/* https://qiita.com/gyu-don/items/5a640c6d2252a860c8cd */
91	int tw_wildcard_match(const char* wildcard, const char* target) {
92	const char pw = wildcard, pt = target;
93
94	while(1) {
95	if(*pt == 0) {
96	while(pw == '') pw++;
97	return *pw == 0;
98	} else if(*pw == 0) {
99	return 0;
100	} else if(pw == '') {
101	return *(pw + 1) == 0 \|\| tw_wildcard_match(pw, pt + 1) \|\| tw_wildcard_match(pw + 1, pt);
102	} else if(pw == '?' \|\| (pw == *pt)) {
103	pw++;
104	pt++;
105	continue;
106	} else {
107	return 0;
108	}
109	}
110	}
111
112	void close_socket(int sock) {
113	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
114	closesocket(sock);
115	#else
116	close(sock);
117	#endif
118	}
119
120	int tw_server_init(void) {
121	int i;
122	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
123	WSADATA wsa;
124	WSAStartup(MAKEWORD(2, 0), &wsa);
125	#endif
126	for(i = 0; config.ports[i] != -1; i++)
127	;
128	sockcount = i;
129	for(i = 0; config.ports[i] != -1; i++) {
130	int yes = 1;
131	int no = 0;
132	#ifdef NO_IPV6
133	int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
134	#else
135	int sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
136	#endif
137	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
138	if(sock == INVALID_SOCKET)
139	#else
140	if(sock < 0)
141	#endif
142	{
143	cm_log("Server", "Socket creation failure");
144	return 1;
145	}
146	if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(yes)) < 0) {
147	close_socket(sock);
148	cm_log("Server", "setsockopt failure (reuseaddr)");
149	return 1;
150	}
151	#ifndef __PPU__
152	if(setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&yes, sizeof(yes)) < 0) {
153	close_socket(sock);
154	cm_log("Server", "setsockopt failure (nodelay)");
155	return 1;
156	}
157	#endif
158	#ifndef NO_IPV6
159	if(setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&no, sizeof(no)) < 0) {
160	close_socket(sock);
161	cm_log("Server", "setsockopt failure (IPv6)");
162	return 1;
163	}
164	#endif
165	memset(&addresses[i], 0, sizeof(addresses[i]));
166	#ifdef NO_IPV6
167	addresses[i].sin_family = AF_INET;
168	addresses[i].sin_addr.s_addr = INADDR_ANY;
169	addresses[i].sin_port = htons(config.ports[i] & 0xffff);
170	#else
171	addresses[i].sin6_family = AF_INET6;
172	addresses[i].sin6_addr = in6addr_any;
173	addresses[i].sin6_port = htons(config.ports[i] & 0xffff);
174	#endif
175	if(bind(sock, (struct sockaddr*)&addresses[i], sizeof(addresses[i])) < 0) {
176	close_socket(sock);
177	cm_log("Server", "Bind failure");
178	return 1;
179	}
180	if(listen(sock, 128) < 0) {
181	close_socket(sock);
182	cm_log("Server", "Listen failure");
183	return 1;
184	}
185	sockets[i] = sock;
186	}
187	return 0;
188	}
189
190	size_t tw_read(SSL* ssl, int s, void* data, size_t len) {
191	#ifndef NO_SSL
192	if(ssl == NULL) {
193	return recv(s, data, len, 0);
194	} else {
195	return SSL_read(ssl, data, len);
196	}
197	#else
198	return recv(s, data, len, 0);
199	#endif
200	}
201
202	size_t tw_write(SSL* ssl, int s, void* data, size_t len) {
203	#ifndef NO_SSL
204	if(ssl == NULL) {
205	return send(s, data, len, 0);
206	} else {
207	return SSL_write(ssl, data, len);
208	}
209	#else
210	return send(s, data, len, 0);
211	#endif
212	}
213
214	#define ERROR_HTML \
215	"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n" \
216	"<html>\n" \
217	" <head>\n" \
218	" <title>%s</title>\n" \
219	" </head>\n" \
220	" <body>\n" \
221	" <h1>%s</h1>\n" \
222	" <hr>\n" \
223	" ", \
224	address, \
225	"\n" \
226	" </body>\n" \
227	"</html>\n"
228
229	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) {
230	char construct[512];
231	size_t incr;
232	if(mtime != 0 && cmtime != 0 && mtime <= cmtime) {
233	status = "304 Not Modified";
234	type = NULL;
235	size = 0;
236	headers = NULL;
237	f = NULL;
238	doc = NULL;
239	}
240	#if defined(_MSC_VER) \|\| defined(__BORLANDC__)
241	sprintf(construct, "%lu", (unsigned long)size);
242	#else
243	sprintf(construct, "%llu", (unsigned long long)size);
244	#endif
245	tw_write(ssl, sock, "HTTP/1.1 ", 9);
246	tw_write(ssl, sock, (char*)status, strlen(status));
247	tw_write(ssl, sock, "\r\n", 2);
248	if(type != NULL) {
249	tw_write(ssl, sock, "Content-Type: ", 7 + 5 + 2);
250	tw_write(ssl, sock, (char*)type, strlen(type));
251	tw_write(ssl, sock, "\r\n", 2);
252	}
253	tw_write(ssl, sock, "Server: ", 6 + 2);
254	tw_write(ssl, sock, tw_server, strlen(tw_server));
255	tw_write(ssl, sock, "\r\n", 2);
256	if(size != 0) {
257	tw_write(ssl, sock, "Content-Length: ", 7 + 7 + 2);
258	tw_write(ssl, sock, construct, strlen(construct));
259	tw_write(ssl, sock, "\r\n", 2);
260	if(mtime != 0) {
261	struct tm* tm = gmtime(&mtime);
262	char date[513];
263	strftime(date, 512, "%a, %d %b %Y %H:%M:%S GMT", tm);
264	tw_write(ssl, sock, "Last-Modified: ", 5 + 8 + 2);
265	tw_write(ssl, sock, date, strlen(date));
266	tw_write(ssl, sock, "\r\n", 2);
267	}
268	}
269	if(headers != NULL) {
270	int i;
271	for(i = 0; headers[i] != NULL; i += 2) {
272	tw_write(ssl, sock, headers[i], strlen(headers[i]));
273	tw_write(ssl, sock, ": ", 2);
274	tw_write(ssl, sock, headers[i + 1], strlen(headers[i + 1]));
275	tw_write(ssl, sock, "\r\n", 2);
276	}
277	}
278	tw_write(ssl, sock, "\r\n", 2);
279	if(doc == NULL && f == NULL) return;
280	incr = 0;
281	while(1) {
282	if(f != NULL) {
283	char buffer[128];
284	fread(buffer, size < 128 ? size : 128, 1, f);
285	tw_write(ssl, sock, buffer, size < 128 ? size : 128);
286	} else {
287	tw_write(ssl, sock, (unsigned char*)doc + incr, size < 128 ? size : 128);
288	}
289	incr += 128;
290	if(size <= 128) break;
291	size -= 128;
292	}
293	}
294
295	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); }
296
297	const char* tw_http_status(int code) {
298	if(code == 200) {
299	return "200 OK";
300	} else if(code == 301) {
301	return "301 Moved Permanently";
302	} else if(code == 308) {
303	return "308 Permanent Redirect";
304	} else if(code == 400) {
305	return "400 Bad Request";
306	} else if(code == 401) {
307	return "401 Unauthorized";
308	} else if(code == 403) {
309	return "403 Forbidden";
310	} else if(code == 404) {
311	return "404 Not Found";
312	} else if(code == 500) {
313	return "500 Internal Server Error";
314	} else {
315	return "400 Bad Request";
316	}
317	}
318
319	char* tw_http_default_error(int code, char* name, int port, struct tw_config_entry* vhost) {
320	char address[1024];
321	char* st;
322	char* st2;
323	char* buffer;
324	char* str;
325	int i;
326
327	if((vhost->hideport == -1 ? config.root.hideport : vhost->hideport) == 1) {
328	sprintf(address, "<address>%s Server at %s</address>", tw_server, name, port);
329	} else {
330	sprintf(address, "<address>%s Server at %s Port %d</address>", tw_server, name, port);
331	}
332
333	st = cm_strdup(tw_http_status(code));
334	for(i = 0; st[i] != 0; i++) {
335	if(st[i] == ' ') {
336	st2 = cm_strdup(st + i + 1);
337	break;
338	}
339	}
340	buffer = malloc(4096);
341	str = cm_strcat3(ERROR_HTML);
342	sprintf(buffer, str, st, st2);
343	free(str);
344	free(st);
345	return buffer;
346	}
347
348	void tw_http_error(SSL* ssl, int sock, int error, char* name, int port, struct tw_config_entry* vhost) {
349	char* str = tw_http_default_error(error, name, port, vhost);
350	tw_process_page(ssl, sock, tw_http_status(error), "text/html", NULL, str, strlen(str), 0, 0);
351	free(str);
352	}
353
354	void addstring(char** str, const char* add, ...) {
355	int i;
356	char cbuf[2];
357	va_list va;
358	cbuf[1] = 0;
359	va_start(va, add);
360	for(i = 0; add[i] != 0; i++) {
361	cbuf[0] = add[i];
362	if(add[i] == '%') {
363	i++;
364	if(add[i] == 's') {
365	char* tmp = *str;
366	str = cm_strcat(tmp, va_arg(va, const char));
367	free(tmp);
368	} else if(add[i] == 'h') {
369	char* h = cm_html_escape(va_arg(va, const char*));
370	char* tmp = *str;
371	*str = cm_strcat(tmp, h);
372	free(tmp);
373	free(h);
374	} else if(add[i] == 'l') {
375	char* h = cm_url_escape(va_arg(va, const char*));
376	char* tmp = *str;
377	*str = cm_strcat(tmp, h);
378	free(tmp);
379	free(h);
380	} else if(add[i] == 'd') {
381	int n = va_arg(va, int);
382	char* h = malloc(512);
383	char* tmp = *str;
384	sprintf(h, "%d", n);
385	*str = cm_strcat(tmp, h);
386	free(tmp);
387	free(h);
388	} else if(add[i] == '%') {
389	char* tmp = *str;
390	*str = cm_strcat(tmp, "%");
391	free(tmp);
392	}
393	} else {
394	char* tmp = *str;
395	*str = cm_strcat(tmp, cbuf);
396	free(tmp);
397	}
398	}
399	va_end(va);
400	}
401
402	char* tw_get_mime(const char* ext, struct tw_config_entry* vhost_entry) {
403	char* mime = "application/octet-stream";
404	bool set = false;
405	int i;
406	if(ext == NULL) return mime;
407	for(i = 0; i < vhost_entry->mime_count; i++) {
408	if(strcmp(vhost_entry->mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(vhost_entry->mimes[i].ext, ext))) {
409	mime = vhost_entry->mimes[i].mime;
410	set = true;
411	}
412	}
413	if(!set) {
414	for(i = 0; i < config.root.mime_count; i++) {
415	if(strcmp(config.root.mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(config.root.mimes[i].ext, ext))) {
416	mime = config.root.mimes[i].mime;
417	}
418	}
419	}
420	return mime;
421	}
422
423	char* tw_get_icon(const char* mime, struct tw_config_entry* vhost_entry) {
424	char* icon = "";
425	bool set = false;
426	int i;
427	if(mime == NULL) return "";
428	for(i = 0; i < vhost_entry->icon_count; i++) {
429	if(strcmp(vhost_entry->icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(vhost_entry->icons[i].mime, mime))) {
430	icon = vhost_entry->icons[i].icon;
431	set = true;
432	}
433	}
434	if(!set) {
435	for(i = 0; i < config.root.icon_count; i++) {
436	if(strcmp(config.root.icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(config.root.icons[i].mime, mime))) {
437	icon = config.root.icons[i].icon;
438	}
439	}
440	}
441	return icon;
442	}
443
444	struct pass_entry {
445	int sock;
446	int port;
447	bool ssl;
448	SOCKADDR addr;
449	};
450
451	#if defined(__MINGW32__) \|\| defined(_MSC_VER)
452	unsigned int WINAPI tw_server_pass(void* ptr) {
453	#elif defined(__BORLANDC__)
454	void tw_server_pass(void* ptr) {
455	#elif defined(__HAIKU__)
456	int32_t tw_server_pass(void* ptr) {
457	#elif defined(_PSP) \|\| defined(__PPU__)
458	int tw_server_pass(void* ptr) {
459	#endif
460	#if defined(__HAIKU__) \|\| defined(__MINGW32__) \|\| defined(_PSP) \|\| defined(__PPU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
461	#define FREE_PTR
462	int sock = ((struct pass_entry*)ptr)->sock;
463	bool ssl = ((struct pass_entry*)ptr)->ssl;
464	int port = ((struct pass_entry*)ptr)->port;
465	SOCKADDR addr = ((struct pass_entry*)ptr)->addr;
466	#else
467	void tw_server_pass(int sock, bool ssl, int port, SOCKADDR addr) {
468	#endif
469	SSL* s = NULL;
470	#ifndef NO_SSL
471	SSL_CTX* ctx = NULL;
472	bool sslworks = false;
473	if(ssl) {
474	ctx = tw_create_ssl_ctx(port);
475	s = SSL_new(ctx);
476	SSL_set_fd(s, sock);
477	if(SSL_accept(s) <= 0) goto cleanup;
478	sslworks = true;
479	}
480	#endif
481	char* name = config.hostname;
482	char address[513];
483	int ret;
484	struct tw_http_request req;
485	struct tw_http_response res;
486	struct tw_tool tools;
487	#ifndef NO_GETADDRINFO
488	struct sockaddr* sa = (struct sockaddr*)&addr;
489	getnameinfo(sa, sizeof(addr), address, 512, NULL, 0, NI_NUMERICHOST);
490	#endif
491	address[0] = 0;
492	#ifdef FREE_PTR
493	free(ptr);
494	#endif
495
496	res._processed = false;
497	tw_init_tools(&tools);
498	ret = tw_http_parse(s, sock, &req);
499	if(ret == 0) {
500	char date[513];
501	time_t t = time(NULL);
502	struct tm* tm = localtime(&t);
503	char* useragent = cm_strdup("");
504	int i;
505	char* tmp;
506	char* tmp2;
507	char* tmp3;
508	char* tmp4;
509	char* tmp5;
510	char* log;
511	char* vhost;
512	time_t cmtime;
513	bool rej;
514	char* host;
515	int port;
516	struct tw_config_entry* vhost_entry;
517	strftime(date, 512, "%a, %d %b %Y %H:%M:%S %Z", tm);
518
519	for(i = 0; req.headers[i] != NULL; i += 2) {
520	if(cm_strcaseequ(req.headers[i], "User-Agent")) {
521	free(useragent);
522	useragent = cm_strdup(req.headers[i + 1]);
523	}
524	}
525
526	tmp = cm_strcat3(address, " - [", date);
527	tmp2 = cm_strcat3(tmp, "] \"", req.method);
528	tmp3 = cm_strcat3(tmp2, " ", req.path);
529	tmp4 = cm_strcat3(tmp3, " ", req.version);
530	tmp5 = cm_strcat3(tmp4, "\" \"", useragent);
531	log = cm_strcat(tmp5, "\"");
532	free(tmp);
533	free(tmp2);
534	free(tmp3);
535	free(tmp4);
536	free(tmp5);
537	free(useragent);
538	cm_force_log(log);
539	free(log);
540
541	vhost = cm_strdup(config.hostname);
542	cmtime = 0;
543	if(req.headers != NULL) {
544	for(i = 0; req.headers[i] != NULL; i += 2) {
545	if(cm_strcaseequ(req.headers[i], "Host")) {
546	free(vhost);
547	vhost = cm_strdup(req.headers[i + 1]);
548	} else if(cm_strcaseequ(req.headers[i], "If-Modified-Since")) {
549	struct tm tm;
550	time_t t;
551	struct tm* btm;
552	strptime(req.headers[i + 1], "%a, %d %b %Y %H:%M:%S GMT", &tm);
553	#if defined(__MINGW32__) \|\| defined(_PSP) \|\| defined(__PPU__) \|\| defined(__ps2sdk__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
554	t = 0;
555	btm = localtime(&t);
556	cmtime = mktime(&tm);
557	cmtime -= (btm->tm_hour * 60 + btm->tm_min) * 60;
558	#else
559	cmtime = timegm(&tm);
560	#endif
561	}
562	}
563	}
564	rej = false;
565	cm_log("Server", "Host is %s", vhost);
566	port = s == NULL ? 80 : 443;
567	host = cm_strdup(vhost);
568	for(i = 0; vhost[i] != 0; i++) {
569	if(vhost[i] == ':') {
570	host[i] = 0;
571	port = atoi(host + i + 1);
572	break;
573	}
574	}
575	name = host;
576	cm_log("Server", "Hostname is `%s', port is `%d'", host, port);
577	vhost_entry = tw_vhost_match(host, port);
578	#ifdef HAS_CHROOT
579	char* chrootpath = vhost_entry->chroot_path != NULL ? vhost_entry->chroot_path : config.root.chroot_path;
580	if(chrootpath != NULL) {
581	if(chdir(chrootpath) == 0) {
582	if(chroot(".") == 0) {
583	cm_log("Server", "Chroot successful");
584	}
585	} else {
586	cm_log("Server", "chdir() failed, cannot chroot");
587	tw_http_error(s, sock, 500, name, port, vhost_entry);
588	rej = true;
589	}
590	}
591	#endif
592	for(i = 0; i < config.module_count; i++) {
593	tw_mod_request_t mod_req = (tw_mod_request_t)tw_module_symbol(config.modules[i], "mod_request");
594	if(mod_req != NULL) {
595	int ret = mod_req(&tools, &req, &res);
596	int co = ret & 0xff;
597	if(co == _TW_MODULE_PASS) {
598	continue;
599	} else if(co == _TW_MODULE_STOP) {
600	/* Handle response here ... */
601	res._processed = true;
602	break;
603	} else if(co == _TW_MODULE_STOP2) {
604	res._processed = true;
605	break;
606	} else if(co == _TW_MODULE_ERROR) {
607	tw_http_error(s, sock, (ret & 0xffff00) >> 8, name, port, vhost_entry);
608	break;
609	}
610	}
611	}
612	if(!res._processed) {
613	char* path;
614	char* rpath;
615	struct stat st;
616	char* slash;
617	cm_log("Server", "Document root is %s", vhost_entry->root == NULL ? "not set" : vhost_entry->root);
618	path = cm_strcat(vhost_entry->root == NULL ? "" : vhost_entry->root, req.path);
619	cm_log("Server", "Filesystem path is %s", path);
620	#if defined(_MSC_VER) \|\| defined(__BORLANDC__)
621	for(i = strlen(path) - 1; i >= 0; i--){
622	if(path[i] == '/'){
623	path[i] = 0;
624	}else{
625	break;
626	}
627	}
628	#endif
629	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
630	rpath = cm_strdup(path);
631	for(i = strlen(rpath) - 1; i >= 0; i--) {
632	if(rpath[i] == '/') {
633	int j;
634	for(j = i + 1; rpath[j] != 0; j++) {
635	if(rpath[j] == ':' \|\| rpath[j] == '.') {
636	rpath[j] = 0;
637	break;
638	}
639	}
640	break;
641	}
642	}
643	for(i = 0; i < sizeof(reserved_names) / sizeof(reserved_names[0]); i++) {
644	char* n = cm_strcat("/", reserved_names[i]);
645	if(cm_nocase_endswith(rpath, n)) {
646	tw_http_error(s, sock, 403, name, port, vhost_entry);
647	free(n);
648	rej = true;
649	cm_log("Server", "XP Patch ; rejecting access to device");
650	break;
651	}
652	free(n);
653	}
654	free(rpath);
655	#endif
656	if(!rej && stat(path, &st) == 0) {
657	if(!tw_permission_allowed(path, addr, req, vhost_entry)) {
658	tw_http_error(s, sock, 403, name, port, vhost_entry);
659	} else if(S_ISDIR(st.st_mode)) {
660	if(req.path[strlen(req.path) - 1] != '/') {
661	char* headers[3] = {"Location", NULL, NULL};
662	headers[1] = cm_strcat(req.path, "/");
663	cm_log("Server", "Accessing directory without the slash at the end");
664	_tw_process_page(s, sock, tw_http_status(301), NULL, NULL, NULL, 0, headers, 0, 0);
665	free(headers[1]);
666	} else {
667	char** indexes = vhost_entry->index_count == 0 ? config.root.indexes : vhost_entry->indexes;
668	int index_count = vhost_entry->index_count == 0 ? config.root.index_count : vhost_entry->index_count;
669	bool found = false;
670	for(i = 0; i < index_count; i++) {
671	char* p = cm_strcat3(path, "/", indexes[i]);
672	FILE* f = fopen(p, "rb");
673	if(f != NULL) {
674	char* ext = NULL;
675	int j;
676	struct stat st;
677	char* mime;
678	for(j = strlen(p) - 1; j >= 0; j--) {
679	if(p[j] == '.') {
680	ext = cm_strdup(p + j);
681	break;
682	} else if(p[j] == '/') {
683	break;
684	}
685	}
686	stat(p, &st);
687	mime = tw_get_mime(ext, vhost_entry);
688	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, 0, 0);
689	fclose(f);
690	if(ext != NULL) free(ext);
691	free(p);
692	found = true;
693	break;
694	}
695	free(p);
696	}
697	if(!found) {
698	char* str = malloc(1);
699	char** items;
700	int readme;
701	char** readmes;
702	int readme_count;
703	int hp;
704	str[0] = 0;
705	items = cm_scandir(path);
706	addstring(&str, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n");
707	addstring(&str, "<html>\n");
708	addstring(&str, " <head>\n");
709	addstring(&str, " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n");
710	addstring(&str, " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n");
711	addstring(&str, " <title>Index of %h</title>\n", req.path);
712	addstring(&str, " </head>\n");
713	addstring(&str, " <body>\n");
714	addstring(&str, " <h1>Index of %h</h1>\n", req.path);
715	addstring(&str, " <hr>\n");
716	addstring(&str, " <table border=\"0\">\n");
717	addstring(&str, " <tr>\n");
718	addstring(&str, " <th></th>\n");
719	addstring(&str, " <th>Filename</th>\n");
720	addstring(&str, " <th>MIME</th>\n");
721	addstring(&str, " <th>Size</th>\n");
722	addstring(&str, " </tr>\n");
723	readme = -1;
724	readmes = vhost_entry->readme_count == 0 ? config.root.readmes : vhost_entry->readmes;
725	readme_count = vhost_entry->readme_count == 0 ? config.root.readme_count : vhost_entry->readme_count;
726	if(items != NULL) {
727	int phase = 0;
728	doit:
729	for(i = 0; items[i] != NULL; i++) {
730	int j;
731	char* ext;
732	char* itm;
733	char* icon;
734	char* fpth = cm_strcat3(path, "/", items[i]);
735	struct stat s;
736	char size[512];
737	char* showmime;
738	char* mime;
739	size[0] = 0;
740	stat(fpth, &s);
741	if(phase == 0 && !S_ISDIR(s.st_mode)) {
742	free(fpth);
743	continue;
744	} else if(phase == 1 && S_ISDIR(s.st_mode)) {
745	free(fpth);
746	continue;
747	}
748	if(readme == -1) {
749	for(j = 0; j < readme_count; j++) {
750	if(strcmp(items[i], readmes[j]) == 0) {
751	readme = j;
752	break;
753	}
754	}
755	if(readme != -1) {
756	free(fpth);
757	continue;
758	}
759	}
760	if(s.st_size < NUM1024) {
761	sprintf(size, "%d", (int)s.st_size);
762	} else if(s.st_size < NUM1024 * 1024) {
763	sprintf(size, "%.1fK", (double)s.st_size / 1024);
764	} else if(s.st_size < NUM1024 * 1024 * 1024) {
765	sprintf(size, "%.1fM", (double)s.st_size / 1024 / 1024);
766	} else if(s.st_size < NUM1024 * 1024 * 1024 * 1024) {
767	sprintf(size, "%.1fG", (double)s.st_size / 1024 / 1024 / 1024);
768	} else if(s.st_size < NUM1024 * 1024 * 1024 * 1024 * 1024) {
769	sprintf(size, "%.1fT", (double)s.st_size / 1024 / 1024 / 1024 / 1024);
770	}
771
772	free(fpth);
773
774	ext = NULL;
775	for(j = strlen(items[i]) - 1; j >= 0; j--) {
776	if(items[i][j] == '.') {
777	ext = cm_strdup(items[i] + j);
778	break;
779	} else if(items[i][j] == '/') {
780	break;
781	}
782	}
783	showmime = "";
784	mime = tw_get_mime(ext, vhost_entry);
785	if(strcmp(items[i], "../") == 0) {
786	mime = "misc/parent";
787	size[0] = 0;
788	} else if(items[i][strlen(items[i]) - 1] == '/') {
789	mime = "misc/dir";
790	size[0] = 0;
791	} else {
792	showmime = mime;
793	}
794	icon = tw_get_icon(mime, vhost_entry);
795	if(ext != NULL) free(ext);
796	itm = cm_strdup(items[i]);
797	if(strlen(itm) >= 32) {
798	if(itm[strlen(itm) - 1] == '/') {
799	itm[31] = 0;
800	itm[30] = '/';
801	itm[29] = '.';
802	itm[28] = '.';
803	itm[27] = '.';
804	} else {
805	itm[31] = 0;
806	itm[30] = '.';
807	itm[29] = '.';
808	itm[28] = '.';
809	}
810	}
811	addstring(&str, "<tr>\n");
812	addstring(&str, " <td><img src=\"%s\" alt=\"icon\"></td>\n", icon);
813	addstring(&str, " <td><a href=\"%l\"><code>%h</code></a></td>\n", items[i], itm);
814	addstring(&str, " <td><code> %h </code></td>\n", showmime);
815	addstring(&str, " <td><code> %s </code></td>\n", size);
816	addstring(&str, "</tr>\n");
817	free(itm);
818	}
819	phase++;
820	if(phase != 2) goto doit;
821	for(i = 0; items[i] != NULL; i++) free(items[i]);
822	free(items);
823	}
824	addstring(&str, " </table>\n");
825	if(readme != -1) {
826	struct stat s;
827	FILE* fr;
828	char* fpth;
829	addstring(&str, "<hr>\n");
830	fpth = cm_strcat3(path, "/", readmes[readme]);
831	stat(fpth, &s);
832	fr = fopen(fpth, "r");
833	if(fr != NULL) {
834	char* rmbuf = malloc(s.st_size + 1);
835	rmbuf[s.st_size] = 0;
836	fread(rmbuf, s.st_size, 1, fr);
837	addstring(&str, "<pre><code>%h</code></pre>\n", rmbuf);
838	fclose(fr);
839	free(rmbuf);
840	}
841	free(fpth);
842	}
843	addstring(&str, " <hr>\n");
844	hp = vhost_entry->hideport == -1 ? config.root.hideport : vhost_entry->hideport;
845	if(hp == 0) {
846	addstring(&str, " <address>%s Server at %s Port %d</address>\n", tw_server, name, port);
847	} else {
848	addstring(&str, " <address>%s Server at %s</address>\n", tw_server, name, port);
849	}
850	addstring(&str, " </body>\n");
851	addstring(&str, "</html>\n");
852	tw_process_page(s, sock, tw_http_status(200), "text/html", NULL, str, strlen(str), 0, 0);
853	free(str);
854	}
855	}
856	} else {
857	char* ext = NULL;
858	char* mime;
859	FILE* f;
860	for(i = strlen(req.path) - 1; i >= 0; i--) {
861	if(req.path[i] == '.') {
862	ext = cm_strdup(req.path + i);
863	break;
864	} else if(req.path[i] == '/') {
865	break;
866	}
867	}
868	mime = tw_get_mime(ext, vhost_entry);
869	if(ext != NULL) free(ext);
870	f = fopen(path, "rb");
871	if(f == NULL) {
872	tw_http_error(s, sock, 403, name, port, vhost_entry);
873	} else {
874	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, st.st_mtime, cmtime);
875	fclose(f);
876	}
877	}
878	} else {
879	if(!rej) {
880	tw_http_error(s, sock, 404, name, port, vhost_entry);
881	}
882	}
883	free(path);
884	}
885	free(vhost);
886	free(host);
887	} else if(ret == -1) {
888	} else {
889	tw_http_error(s, sock, 400, name, port, &config.root);
890	}
891	tw_free_request(&req);
892	cleanup:
893	#ifndef NO_SSL
894	if(sslworks) {
895	SSL_shutdown(s);
896	}
897	SSL_free(s);
898	#endif
899	close_socket(sock);
900	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
901	_endthread(
902	#ifndef __BORLANDC__
903	0
904	#endif
905	);
906	#elif defined(__HAIKU__)
907	exit_thread(0);
908	#endif
909	#ifndef __BORLANDC__
910	return 0;
911	#endif
912	}
913
914	#ifdef SERVICE
915	extern SERVICE_STATUS status;
916	extern SERVICE_STATUS_HANDLE status_handle;
917	#endif
918
919	#if defined(__MINGW32__) \|\| defined(__HAIKU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
920	struct thread_entry {
921	#ifdef __HAIKU__
922	thread_id thread;
923	#else
924	HANDLE handle;
925	#endif
926	bool used;
927	};
928	#endif
929
930	extern int running;
931
932	void tw_server_loop(void) {
933	int i;
934	#ifndef USE_POLL
935	fd_set fdset;
936	struct timeval tv;
937	#endif
938	#if defined(__MINGW32__) \|\| defined(__HAIKU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
939	struct thread_entry threads[2048];
940	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
941	threads[i].used = false;
942	}
943	#endif
944	#ifdef USE_POLL
945	struct pollfd pollfds[sockcount];
946	for(i = 0; i < sockcount; i++) {
947	pollfds[i].fd = sockets[i];
948	pollfds[i].events = POLLIN \| POLLPRI;
949	}
950	#endif
951	while(running) {
952	int ret;
953	#ifdef USE_POLL
954	ret = poll(pollfds, sockcount, 1000);
955	#else
956	FD_ZERO(&fdset);
957	for(i = 0; i < sockcount; i++) {
958	FD_SET(sockets[i], &fdset);
959	}
960	tv.tv_sec = 1;
961	tv.tv_usec = 0;
962	#ifdef __HAIKU__
963	ret = select(32, &fdset, NULL, NULL, &tv);
964	#else
965	ret = select(FD_SETSIZE, &fdset, NULL, NULL, &tv);
966	#endif
967	#endif
968	if(ret == -1) {
969	#if !defined(__MINGW32__) && !defined(_MSC_VER) && !defined(__BORLANDC__)
970	cm_log("Server", "Select failure: %s", strerror(errno));
971	#endif
972	break;
973	} else if(ret == 0) {
974	#ifdef SERVICE
975	if(status.dwCurrentState == SERVICE_STOP_PENDING) {
976	break;
977	}
978	#endif
979	} else if(ret > 0) {
980	/* connection */
981	int i;
982	for(i = 0; i < sockcount; i++) {
983	bool cond;
984	#ifdef USE_POLL
985	cond = pollfds[i].revents & POLLIN;
986	#else
987	cond = FD_ISSET(sockets[i], &fdset);
988	#endif
989	if(cond) {
990	SOCKADDR claddr;
991	socklen_t clen = sizeof(claddr);
992	int sock = accept(sockets[i], (struct sockaddr*)&claddr, &clen);
993	#if defined(__MINGW32__) \|\| defined(__HAIKU__) \|\| defined(_PSP) \|\| defined(__PPU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
994	int j;
995	struct pass_entry* e = malloc(sizeof(*e));
996	cm_log("Server", "New connection accepted");
997	e->sock = sock;
998	#if defined(_MSC_VER) \|\| defined(__BORLANDC__)
999	e->ssl = config.ports[i] & (1UL << 31);
1000	#else
1001	e->ssl = config.ports[i] & (1ULL << 31);
1002	#endif
1003	e->port = config.ports[i];
1004	e->addr = claddr;
1005	#endif
1006	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
1007	_beginthread(tw_server_pass, 0, e);
1008	#elif defined(_PSP) \|\| defined(__PPU__)
1009	tw_server_pass(e);
1010	#elif defined(__HAIKU__)
1011	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
1012	if(threads[j].used) {
1013	thread_info info;
1014	bool kill = false;
1015	if(get_thread_info(threads[j].thread, &info) == B_OK) {
1016	} else {
1017	kill = true;
1018	}
1019	if(kill) {
1020	threads[j].used = false;
1021	}
1022	}
1023	}
1024	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
1025	if(!threads[j].used) {
1026	threads[j].thread = spawn_thread(tw_server_pass, "Tewi HTTPd", 60, e);
1027	threads[j].used = true;
1028	resume_thread(threads[j].thread);
1029	break;
1030	}
1031	}
1032	#else
1033	pid_t pid = fork();
1034	if(pid == 0) {
1035	int j;
1036	for(j = 0; j < sockcount; j++) close_socket(sockets[j]);
1037	tw_server_pass(sock, config.ports[i] & (1ULL << 31), config.ports[i], claddr);
1038	_exit(0);
1039	} else {
1040	close_socket(sock);
1041	}
1042	#endif
1043	}
1044	}
1045	}
1046	}
1047	}

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source: Main/trunk/Server/server.c@ 215

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