server.c@ 346

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Last change on this file since 346 was 342, checked in by Nishi, on Oct 15, 2024 at 3:25:41 AM
trying to add nextstep support
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File size: 29.8 KB

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1	/* $Id: server.c 342 2024-10-14 18:25:41Z 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 <ctype.h>
22	#include <string.h>
23	#include <stdbool.h>
24	#include <stdarg.h>
25	#include <stdio.h>
26	#include <stdlib.h>
27	#include <errno.h>
28	#include <sys/types.h>
29	#include <sys/stat.h>
30	#include <time.h>
31
32	#include <cm_string.h>
33	#include <cm_log.h>
34	#include <cm_dir.h>
35
36	#ifdef __OS2__
37	#include <types.h>
38	#include <sys/time.h>
39	#define INCL_DOSPROCESS
40	#include <os2.h>
41	#include <process.h>
42	#define HANDLE void*
43
44	#include "strptime.h"
45	typedef int socklen_t;
46
47	#include <tcpustd.h>
48	#endif
49
50	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| (defined(__WATCOMC__) && !defined(__OS2__) && !defined(__NETWARE__))
51	#ifndef NO_GETNAMEINFO
52	#include <ws2tcpip.h>
53	#include <wspiapi.h>
54	#endif
55	#ifdef USE_WINSOCK1
56	#include <winsock.h>
57	#else
58	#include <winsock2.h>
59	#endif
60	#include <process.h>
61	#include <windows.h>
62
63	#include "strptime.h"
64	typedef int socklen_t;
65	#elif defined(__NETWARE__)
66	#include <sys/socket.h>
67	#include <nwthread.h>
68	#define IPPROTO_TCP 0
69	#define INADDR_ANY 0
70	#define htons(x) x
71	#include "strptime.h"
72	#else
73	#ifdef USE_POLL
74	#ifdef __PPU__
75	#include <net/poll.h>
76	#else
77	#include <poll.h>
78	#endif
79	#else
80	#ifndef __NeXT__
81	#include <sys/select.h>
82	#endif
83	#endif
84	#include <sys/socket.h>
85	#include <arpa/inet.h>
86	#if !defined(__PPU__)
87	#ifdef __NeXT__
88	#include <netinet/in_systm.h>
89	#endif
90	#include <netinet/tcp.h>
91	#endif
92	#ifndef NO_GETNAMEINFO
93	#include <netdb.h>
94	#endif
95	#endif
96
97	#if defined(_PSP) \|\| defined(__ps2sdk__)
98	#include "strptime.h"
99	#endif
100
101	#ifdef __HAIKU__
102	#include <OS.h>
103	#endif
104
105	#ifdef __NeXT__
106	#include <sys/time.h>
107	#endif
108
109	#if defined(__USLC__) \|\| defined(__NeXT__) \|\| defined(__NETWARE__)
110	typedef int socklen_t;
111	#endif
112
113	#ifndef S_ISDIR
114	#define S_ISDIR(x) ((x) & _S_IFDIR)
115	#endif
116
117	extern struct tw_config config;
118	extern char tw_server[];
119
120	int sockcount = 0;
121
122	SOCKADDR addresses[MAX_PORTS];
123	int sockets[MAX_PORTS];
124
125	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
126	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"};
127	#endif
128
129	/* https://qiita.com/gyu-don/items/5a640c6d2252a860c8cd */
130	int tw_wildcard_match(const char* wildcard, const char* target) {
131	const char pw = wildcard, pt = target;
132
133	while(1) {
134	if(*pt == 0) {
135	while(pw == '') pw++;
136	return *pw == 0;
137	} else if(*pw == 0) {
138	return 0;
139	} else if(pw == '') {
140	return *(pw + 1) == 0 \|\| tw_wildcard_match(pw, pt + 1) \|\| tw_wildcard_match(pw + 1, pt);
141	} else if(pw == '?' \|\| (tolower(pw) == tolower(*pt))) {
142	pw++;
143	pt++;
144	continue;
145	} else {
146	return 0;
147	}
148	}
149	}
150
151	void close_socket(int sock) {
152	#ifdef __OS2__
153	soclose(sock);
154	#elif defined(__NETWARE__)
155	shutdown(sock, 2);
156	#elif defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
157	closesocket(sock);
158	#else
159	close(sock);
160	#endif
161	}
162
163	int tw_server_init(void) {
164	int i;
165	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| (defined(__WATCOMC__) && !defined(__OS2__) && !defined(__NETWARE__))
166	WSADATA wsa;
167	#ifdef USE_WINSOCK1
168	WSAStartup(MAKEWORD(1, 1), &wsa);
169	#else
170	WSAStartup(MAKEWORD(2, 0), &wsa);
171	#endif
172	#endif
173	#ifdef __OS2__
174	sock_init();
175	#endif
176	for(i = 0; config.ports[i] != -1; i++)
177	;
178	sockcount = i;
179	for(i = 0; config.ports[i] != -1; i++) {
180	int yes = 1;
181	int no = 0;
182	#ifdef NO_IPV6
183	int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
184	#else
185	int sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
186	#endif
187	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__)
188	if(sock == INVALID_SOCKET)
189	#else
190	if(sock < 0)
191	#endif
192	{
193	cm_log("Server", "Socket creation failure");
194	return 1;
195	}
196	if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(yes)) < 0) {
197	close_socket(sock);
198	cm_log("Server", "setsockopt failure (reuseaddr)");
199	return 1;
200	}
201	#if !defined(__PPU__) && !defined(__minix)
202	if(setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&yes, sizeof(yes)) < 0) {
203	close_socket(sock);
204	cm_log("Server", "setsockopt failure (nodelay)");
205	return 1;
206	}
207	#endif
208	#ifndef NO_IPV6
209	if(setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&no, sizeof(no)) < 0) {
210	close_socket(sock);
211	cm_log("Server", "setsockopt failure (IPv6)");
212	return 1;
213	}
214	#endif
215	memset(&addresses[i], 0, sizeof(addresses[i]));
216	#ifdef NO_IPV6
217	addresses[i].sin_family = AF_INET;
218	addresses[i].sin_addr.s_addr = INADDR_ANY;
219	addresses[i].sin_port = htons(config.ports[i] & 0xffff);
220	#else
221	addresses[i].sin6_family = AF_INET6;
222	addresses[i].sin6_addr = in6addr_any;
223	addresses[i].sin6_port = htons(config.ports[i] & 0xffff);
224	#endif
225	if(bind(sock, (struct sockaddr*)&addresses[i], sizeof(addresses[i])) < 0) {
226	close_socket(sock);
227	cm_log("Server", "Bind failure");
228	return 1;
229	}
230	if(listen(sock, 128) < 0) {
231	close_socket(sock);
232	cm_log("Server", "Listen failure");
233	return 1;
234	}
235	sockets[i] = sock;
236	}
237	return 0;
238	}
239
240	size_t tw_read(SSL* ssl, int s, void* data, size_t len) {
241	#ifndef NO_SSL
242	if(ssl == NULL) {
243	return recv(s, data, len, 0);
244	} else {
245	return SSL_read(ssl, data, len);
246	}
247	#else
248	return recv(s, data, len, 0);
249	#endif
250	}
251
252	size_t tw_write(SSL* ssl, int s, void* data, size_t len) {
253	#ifndef NO_SSL
254	if(ssl == NULL) {
255	return send(s, data, len, 0);
256	} else {
257	return SSL_write(ssl, data, len);
258	}
259	#else
260	return send(s, data, len, 0);
261	#endif
262	}
263
264	#define ERROR_HTML \
265	"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n" \
266	"<html>\n" \
267	" <head>\n" \
268	" <title>%s</title>\n" \
269	" </head>\n" \
270	" <body>\n" \
271	" <h1>%s</h1>\n" \
272	" <hr>\n" \
273	" ", \
274	address, \
275	"\n" \
276	" </body>\n" \
277	"</html>\n"
278
279	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) {
280	char construct[512];
281	size_t incr;
282	if(mtime != 0 && cmtime != 0 && mtime <= cmtime) {
283	status = "304 Not Modified";
284	type = NULL;
285	size = 0;
286	headers = NULL;
287	f = NULL;
288	doc = NULL;
289	}
290	#if defined(_MSC_VER) \|\| defined(__BORLANDC__)
291	sprintf(construct, "%lu", (unsigned long)size);
292	#else
293	sprintf(construct, "%llu", (unsigned long long)size);
294	#endif
295	tw_write(ssl, sock, "HTTP/1.1 ", 9);
296	tw_write(ssl, sock, (char*)status, strlen(status));
297	tw_write(ssl, sock, "\r\n", 2);
298	if(type != NULL) {
299	tw_write(ssl, sock, "Content-Type: ", 7 + 5 + 2);
300	tw_write(ssl, sock, (char*)type, strlen(type));
301	tw_write(ssl, sock, "\r\n", 2);
302	}
303	tw_write(ssl, sock, "Server: ", 6 + 2);
304	tw_write(ssl, sock, tw_server, strlen(tw_server));
305	tw_write(ssl, sock, "\r\n", 2);
306	if(size != 0) {
307	tw_write(ssl, sock, "Content-Length: ", 7 + 7 + 2);
308	tw_write(ssl, sock, construct, strlen(construct));
309	tw_write(ssl, sock, "\r\n", 2);
310	if(mtime != 0) {
311	struct tm* tm = gmtime(&mtime);
312	char date[513];
313	strftime(date, 512, "%a, %d %b %Y %H:%M:%S GMT", tm);
314	tw_write(ssl, sock, "Last-Modified: ", 5 + 8 + 2);
315	tw_write(ssl, sock, date, strlen(date));
316	tw_write(ssl, sock, "\r\n", 2);
317	}
318	}
319	if(headers != NULL) {
320	int i;
321	for(i = 0; headers[i] != NULL; i += 2) {
322	tw_write(ssl, sock, headers[i], strlen(headers[i]));
323	tw_write(ssl, sock, ": ", 2);
324	tw_write(ssl, sock, headers[i + 1], strlen(headers[i + 1]));
325	tw_write(ssl, sock, "\r\n", 2);
326	}
327	}
328	tw_write(ssl, sock, "\r\n", 2);
329	if(doc == NULL && f == NULL) return;
330	incr = 0;
331	while(1) {
332	if(f != NULL) {
333	char buffer[128];
334	fread(buffer, size < 128 ? size : 128, 1, f);
335	tw_write(ssl, sock, buffer, size < 128 ? size : 128);
336	} else {
337	tw_write(ssl, sock, (unsigned char*)doc + incr, size < 128 ? size : 128);
338	}
339	incr += 128;
340	if(size <= 128) break;
341	size -= 128;
342	}
343	}
344
345	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); }
346
347	const char* tw_http_status(int code) {
348	if(code == 200) {
349	return "200 OK";
350	} else if(code == 301) {
351	return "301 Moved Permanently";
352	} else if(code == 308) {
353	return "308 Permanent Redirect";
354	} else if(code == 400) {
355	return "400 Bad Request";
356	} else if(code == 401) {
357	return "401 Unauthorized";
358	} else if(code == 403) {
359	return "403 Forbidden";
360	} else if(code == 404) {
361	return "404 Not Found";
362	} else if(code == 500) {
363	return "500 Internal Server Error";
364	} else {
365	return "400 Bad Request";
366	}
367	}
368
369	char* tw_http_default_error(int code, char* name, int port, struct tw_config_entry* vhost) {
370	char address[1024];
371	char* st;
372	char* st2;
373	char* buffer;
374	char* str;
375	int i;
376
377	if((vhost->hideport == -1 ? config.root.hideport : vhost->hideport) == 1) {
378	sprintf(address, "<address>%s Server at %s</address>", tw_server, name, port);
379	} else {
380	sprintf(address, "<address>%s Server at %s Port %d</address>", tw_server, name, port);
381	}
382
383	st = cm_strdup(tw_http_status(code));
384	for(i = 0; st[i] != 0; i++) {
385	if(st[i] == ' ') {
386	st2 = cm_strdup(st + i + 1);
387	break;
388	}
389	}
390	buffer = malloc(4096);
391	str = cm_strcat3(ERROR_HTML);
392	sprintf(buffer, str, st, st2);
393	free(str);
394	free(st);
395	return buffer;
396	}
397
398	void tw_http_error(SSL* ssl, int sock, int error, char* name, int port, struct tw_config_entry* vhost) {
399	char* str = tw_http_default_error(error, name, port, vhost);
400	tw_process_page(ssl, sock, tw_http_status(error), "text/html", NULL, str, strlen(str), 0, 0);
401	free(str);
402	}
403
404	void addstring(char** str, const char* add, ...) {
405	int i;
406	char cbuf[2];
407	va_list va;
408	cbuf[1] = 0;
409	va_start(va, add);
410	for(i = 0; add[i] != 0; i++) {
411	cbuf[0] = add[i];
412	if(add[i] == '%') {
413	i++;
414	if(add[i] == 's') {
415	char* tmp = *str;
416	str = cm_strcat(tmp, va_arg(va, const char));
417	free(tmp);
418	} else if(add[i] == 'h') {
419	char* h = cm_html_escape(va_arg(va, const char*));
420	char* tmp = *str;
421	*str = cm_strcat(tmp, h);
422	free(tmp);
423	free(h);
424	} else if(add[i] == 'l') {
425	char* h = cm_url_escape(va_arg(va, const char*));
426	char* tmp = *str;
427	*str = cm_strcat(tmp, h);
428	free(tmp);
429	free(h);
430	} else if(add[i] == 'd') {
431	int n = va_arg(va, int);
432	char* h = malloc(512);
433	char* tmp = *str;
434	sprintf(h, "%d", n);
435	*str = cm_strcat(tmp, h);
436	free(tmp);
437	free(h);
438	} else if(add[i] == '%') {
439	char* tmp = *str;
440	*str = cm_strcat(tmp, "%");
441	free(tmp);
442	}
443	} else {
444	char* tmp = *str;
445	*str = cm_strcat(tmp, cbuf);
446	free(tmp);
447	}
448	}
449	va_end(va);
450	}
451
452	char* tw_get_mime(const char* ext, struct tw_config_entry* vhost_entry) {
453	char* mime = "application/octet-stream";
454	bool set = false;
455	int i;
456	if(ext == NULL) return mime;
457	for(i = 0; i < vhost_entry->mime_count; i++) {
458	if(strcmp(vhost_entry->mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(vhost_entry->mimes[i].ext, ext))) {
459	mime = vhost_entry->mimes[i].mime;
460	set = true;
461	}
462	}
463	if(!set) {
464	for(i = 0; i < config.root.mime_count; i++) {
465	if(strcmp(config.root.mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(config.root.mimes[i].ext, ext))) {
466	mime = config.root.mimes[i].mime;
467	}
468	}
469	}
470	return mime;
471	}
472
473	char* tw_get_icon(const char* mime, struct tw_config_entry* vhost_entry) {
474	char* icon = "";
475	bool set = false;
476	int i;
477	if(mime == NULL) return "";
478	for(i = 0; i < vhost_entry->icon_count; i++) {
479	if(strcmp(vhost_entry->icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(vhost_entry->icons[i].mime, mime))) {
480	icon = vhost_entry->icons[i].icon;
481	set = true;
482	}
483	}
484	if(!set) {
485	for(i = 0; i < config.root.icon_count; i++) {
486	if(strcmp(config.root.icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(config.root.icons[i].mime, mime))) {
487	icon = config.root.icons[i].icon;
488	}
489	}
490	}
491	return icon;
492	}
493
494	struct pass_entry {
495	int sock;
496	int port;
497	bool ssl;
498	SOCKADDR addr;
499	};
500
501	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
502	#define NO_RETURN_THREAD
503	void tw_server_pass(void* ptr) {
504	#elif defined(__HAIKU__)
505	int32_t tw_server_pass(void* ptr) {
506	#elif defined(_PSP) \|\| defined(__PPU__)
507	int tw_server_pass(void* ptr) {
508	#endif
509	#if defined(__HAIKU__) \|\| defined(__MINGW32__) \|\| defined(_PSP) \|\| defined(__PPU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
510	#define FREE_PTR
511	int sock = ((struct pass_entry*)ptr)->sock;
512	bool ssl = ((struct pass_entry*)ptr)->ssl;
513	int port = ((struct pass_entry*)ptr)->port;
514	SOCKADDR addr = ((struct pass_entry*)ptr)->addr;
515	#else
516	#define NO_RETURN_THREAD
517	void tw_server_pass(int sock, bool ssl, int port, SOCKADDR addr) {
518	#endif
519	SSL* s = NULL;
520	#ifndef NO_SSL
521	SSL_CTX* ctx = NULL;
522	bool sslworks = false;
523	if(ssl) {
524	ctx = tw_create_ssl_ctx(port);
525	s = SSL_new(ctx);
526	SSL_set_fd(s, sock);
527	if(SSL_accept(s) <= 0) goto cleanup;
528	sslworks = true;
529	}
530	#endif
531	char* name = config.hostname;
532	char address[513];
533	int ret;
534	struct tw_http_request req;
535	struct tw_http_response res;
536	struct tw_tool tools;
537	char* addrstr;
538	#ifndef NO_GETNAMEINFO
539	struct sockaddr* sa = (struct sockaddr*)&addr;
540	getnameinfo(sa, sizeof(addr), address, 512, NULL, 0, NI_NUMERICHOST);
541	#elif defined(__NETWARE__)
542	address[0] = 0;
543	#else
544	addrstr = inet_ntoa(addr.sin_addr);
545	strcpy(address, addrstr);
546	address[strlen(addrstr)] = 0;
547	#endif
548	#ifdef FREE_PTR
549	free(ptr);
550	#endif
551
552	res._processed = false;
553	tw_init_tools(&tools);
554	ret = tw_http_parse(s, sock, &req);
555	if(ret == 0) {
556	char date[513];
557	time_t t = time(NULL);
558	struct tm* tm = localtime(&t);
559	char* useragent = cm_strdup("");
560	int i;
561	char* tmp;
562	char* tmp2;
563	char* tmp3;
564	char* tmp4;
565	char* tmp5;
566	char* log;
567	char* vhost;
568	time_t cmtime;
569	bool rej;
570	char* host;
571	int port;
572	char* chrootpath;
573	struct tw_config_entry* vhost_entry;
574	strftime(date, 512, "%a, %d %b %Y %H:%M:%S %Z", tm);
575
576	for(i = 0; req.headers[i] != NULL; i += 2) {
577	if(cm_strcaseequ(req.headers[i], "User-Agent")) {
578	free(useragent);
579	useragent = cm_strdup(req.headers[i + 1]);
580	}
581	}
582
583	tmp = cm_strcat3(address, " - [", date);
584	tmp2 = cm_strcat3(tmp, "] \"", req.method);
585	tmp3 = cm_strcat3(tmp2, " ", req.path);
586	tmp4 = cm_strcat3(tmp3, " ", req.version);
587	tmp5 = cm_strcat3(tmp4, "\" \"", useragent);
588	log = cm_strcat(tmp5, "\"");
589	free(tmp);
590	free(tmp2);
591	free(tmp3);
592	free(tmp4);
593	free(tmp5);
594	free(useragent);
595	cm_force_log(log);
596	free(log);
597
598	vhost = cm_strdup(config.hostname);
599	cmtime = 0;
600	if(req.headers != NULL) {
601	for(i = 0; req.headers[i] != NULL; i += 2) {
602	if(cm_strcaseequ(req.headers[i], "Host")) {
603	free(vhost);
604	vhost = cm_strdup(req.headers[i + 1]);
605	} else if(cm_strcaseequ(req.headers[i], "If-Modified-Since")) {
606	struct tm tm;
607	time_t t;
608	struct tm* btm;
609	strptime(req.headers[i + 1], "%a, %d %b %Y %H:%M:%S GMT", &tm);
610	#if defined(__MINGW32__) \|\| defined(_PSP) \|\| defined(__PPU__) \|\| defined(__ps2sdk__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__) \|\| defined(__USLC__) \|\| defined(__NeXT__)
611	t = 0;
612	btm = localtime(&t);
613	cmtime = mktime(&tm);
614	cmtime -= (btm->tm_hour * 60 + btm->tm_min) * 60;
615	#else
616	cmtime = timegm(&tm);
617	#endif
618	}
619	}
620	}
621	rej = false;
622	cm_log("Server", "Host is %s", vhost);
623	port = s == NULL ? 80 : 443;
624	host = cm_strdup(vhost);
625	for(i = 0; vhost[i] != 0; i++) {
626	if(vhost[i] == ':') {
627	host[i] = 0;
628	port = atoi(host + i + 1);
629	break;
630	}
631	}
632	name = host;
633	cm_log("Server", "Hostname is `%s', port is `%d'", host, port);
634	vhost_entry = tw_vhost_match(host, port);
635	#ifdef HAS_CHROOT
636	chrootpath = vhost_entry->chroot_path != NULL ? vhost_entry->chroot_path : config.root.chroot_path;
637	if(chrootpath != NULL) {
638	if(chdir(chrootpath) == 0) {
639	if(chroot(".") == 0) {
640	cm_log("Server", "Chroot successful");
641	}
642	} else {
643	cm_log("Server", "chdir() failed, cannot chroot");
644	tw_http_error(s, sock, 500, name, port, vhost_entry);
645	rej = true;
646	}
647	}
648	#endif
649	for(i = 0; i < config.module_count; i++) {
650	#ifdef __OS2__
651	tw_mod_request_t mod_req = (tw_mod_request_t)tw_module_symbol(config.modules[i], "MOD_REQUEST");
652	#else
653	tw_mod_request_t mod_req = (tw_mod_request_t)tw_module_symbol(config.modules[i], "mod_request");
654	#endif
655	if(mod_req != NULL) {
656	int ret = mod_req(&tools, &req, &res);
657	int co = ret & 0xff;
658	if(co == _TW_MODULE_PASS) {
659	continue;
660	} else if(co == _TW_MODULE_STOP) {
661	/* Handle response here ... */
662	res._processed = true;
663	break;
664	} else if(co == _TW_MODULE_STOP2) {
665	res._processed = true;
666	break;
667	} else if(co == _TW_MODULE_ERROR) {
668	tw_http_error(s, sock, (ret & 0xffff00) >> 8, name, port, vhost_entry);
669	break;
670	}
671	}
672	}
673	if(!res._processed) {
674	char* path;
675	char* rpath;
676	struct stat st;
677	char* slash;
678	cm_log("Server", "Document root is %s", vhost_entry->root == NULL ? "not set" : vhost_entry->root);
679	path = cm_strcat(vhost_entry->root == NULL ? "" : vhost_entry->root, req.path);
680	cm_log("Server", "Filesystem path is %s", path);
681	#if defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
682	for(i = strlen(path) - 1; i >= 0; i--) {
683	if(path[i] == '/') {
684	path[i] = 0;
685	} else {
686	break;
687	}
688	}
689	#endif
690	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
691	rpath = cm_strdup(path);
692	for(i = strlen(rpath) - 1; i >= 0; i--) {
693	if(rpath[i] == '/') {
694	int j;
695	for(j = i + 1; rpath[j] != 0; j++) {
696	if(rpath[j] == ':' \|\| rpath[j] == '.') {
697	rpath[j] = 0;
698	break;
699	}
700	}
701	break;
702	}
703	}
704	for(i = 0; i < sizeof(reserved_names) / sizeof(reserved_names[0]); i++) {
705	char* n = cm_strcat("/", reserved_names[i]);
706	if(cm_nocase_endswith(rpath, n)) {
707	tw_http_error(s, sock, 403, name, port, vhost_entry);
708	free(n);
709	rej = true;
710	cm_log("Server", "XP Patch ; rejecting access to device");
711	break;
712	}
713	free(n);
714	}
715	free(rpath);
716	#endif
717	if(!rej && stat(path, &st) == 0) {
718	if(!tw_permission_allowed(path, addr, req, vhost_entry)) {
719	tw_http_error(s, sock, 403, name, port, vhost_entry);
720	} else if(S_ISDIR(st.st_mode)) {
721	if(req.path[strlen(req.path) - 1] != '/') {
722	char* headers[3] = {"Location", NULL, NULL};
723	headers[1] = cm_strcat(req.path, "/");
724	cm_log("Server", "Accessing directory without the slash at the end");
725	_tw_process_page(s, sock, tw_http_status(301), NULL, NULL, NULL, 0, headers, 0, 0);
726	free(headers[1]);
727	} else {
728	char** indexes = vhost_entry->index_count == 0 ? config.root.indexes : vhost_entry->indexes;
729	int index_count = vhost_entry->index_count == 0 ? config.root.index_count : vhost_entry->index_count;
730	bool found = false;
731	for(i = 0; i < index_count; i++) {
732	char* p = cm_strcat3(path, "/", indexes[i]);
733	FILE* f = fopen(p, "rb");
734	if(f != NULL) {
735	char* ext = NULL;
736	int j;
737	struct stat st;
738	char* mime;
739	for(j = strlen(p) - 1; j >= 0; j--) {
740	if(p[j] == '.') {
741	ext = cm_strdup(p + j);
742	break;
743	} else if(p[j] == '/') {
744	break;
745	}
746	}
747	stat(p, &st);
748	mime = tw_get_mime(ext, vhost_entry);
749	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, 0, 0);
750	fclose(f);
751	if(ext != NULL) free(ext);
752	free(p);
753	found = true;
754	break;
755	}
756	free(p);
757	}
758	if(!found) {
759	char* str = malloc(1);
760	char** items;
761	int readme;
762	char** readmes;
763	int readme_count;
764	int hp;
765	str[0] = 0;
766	items = cm_scandir(path);
767	addstring(&str, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n");
768	addstring(&str, "<html>\n");
769	addstring(&str, " <head>\n");
770	addstring(&str, " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n");
771	addstring(&str, " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n");
772	addstring(&str, " <title>Index of %h</title>\n", req.path);
773	addstring(&str, " </head>\n");
774	addstring(&str, " <body>\n");
775	addstring(&str, " <h1>Index of %h</h1>\n", req.path);
776	addstring(&str, " <hr>\n");
777	addstring(&str, " <table border=\"0\">\n");
778	addstring(&str, " <tr>\n");
779	addstring(&str, " <th></th>\n");
780	addstring(&str, " <th>Filename</th>\n");
781	addstring(&str, " <th>MIME</th>\n");
782	addstring(&str, " <th>Size</th>\n");
783	addstring(&str, " </tr>\n");
784	readme = -1;
785	readmes = vhost_entry->readme_count == 0 ? config.root.readmes : vhost_entry->readmes;
786	readme_count = vhost_entry->readme_count == 0 ? config.root.readme_count : vhost_entry->readme_count;
787	if(items != NULL) {
788	int phase = 0;
789	doit:
790	for(i = 0; items[i] != NULL; i++) {
791	int j;
792	char* ext;
793	char* itm;
794	char* icon;
795	char* fpth = cm_strcat3(path, "/", items[i]);
796	struct stat s;
797	char size[512];
798	char* showmime;
799	char* mime;
800	size[0] = 0;
801	stat(fpth, &s);
802	if(phase == 0 && !S_ISDIR(s.st_mode)) {
803	free(fpth);
804	continue;
805	} else if(phase == 1 && S_ISDIR(s.st_mode)) {
806	free(fpth);
807	continue;
808	}
809	if(readme == -1) {
810	for(j = 0; j < readme_count; j++) {
811	if(strcmp(items[i], readmes[j]) == 0) {
812	readme = j;
813	break;
814	}
815	}
816	if(readme != -1) {
817	free(fpth);
818	continue;
819	}
820	}
821	if(s.st_size < NUM1024) {
822	sprintf(size, "%d", (int)s.st_size);
823	} else if(s.st_size < NUM1024 * 1024) {
824	sprintf(size, "%.1fK", (double)s.st_size / 1024);
825	} else if(s.st_size < NUM1024 * 1024 * 1024) {
826	sprintf(size, "%.1fM", (double)s.st_size / 1024 / 1024);
827	} else if(s.st_size < NUM1024 * 1024 * 1024 * 1024) {
828	sprintf(size, "%.1fG", (double)s.st_size / 1024 / 1024 / 1024);
829	} else if(s.st_size < NUM1024 * 1024 * 1024 * 1024 * 1024) {
830	sprintf(size, "%.1fT", (double)s.st_size / 1024 / 1024 / 1024 / 1024);
831	}
832
833	free(fpth);
834
835	ext = NULL;
836	for(j = strlen(items[i]) - 1; j >= 0; j--) {
837	if(items[i][j] == '.') {
838	ext = cm_strdup(items[i] + j);
839	break;
840	} else if(items[i][j] == '/') {
841	break;
842	}
843	}
844	showmime = "";
845	mime = tw_get_mime(ext, vhost_entry);
846	if(strcmp(items[i], "../") == 0) {
847	mime = "misc/parent";
848	size[0] = 0;
849	} else if(items[i][strlen(items[i]) - 1] == '/') {
850	mime = "misc/dir";
851	size[0] = 0;
852	} else {
853	showmime = mime;
854	}
855	icon = tw_get_icon(mime, vhost_entry);
856	if(ext != NULL) free(ext);
857	itm = cm_strdup(items[i]);
858	if(strlen(itm) >= 32) {
859	if(itm[strlen(itm) - 1] == '/') {
860	itm[31] = 0;
861	itm[30] = '/';
862	itm[29] = '.';
863	itm[28] = '.';
864	itm[27] = '.';
865	} else {
866	itm[31] = 0;
867	itm[30] = '.';
868	itm[29] = '.';
869	itm[28] = '.';
870	}
871	}
872	addstring(&str, "<tr>\n");
873	addstring(&str, " <td><img src=\"%s\" alt=\"icon\"></td>\n", icon);
874	addstring(&str, " <td><a href=\"%l\"><code>%h</code></a></td>\n", items[i], itm);
875	addstring(&str, " <td><code> %h </code></td>\n", showmime);
876	addstring(&str, " <td><code> %s </code></td>\n", size);
877	addstring(&str, "</tr>\n");
878	free(itm);
879	}
880	phase++;
881	if(phase != 2) goto doit;
882	for(i = 0; items[i] != NULL; i++) free(items[i]);
883	free(items);
884	}
885	addstring(&str, " </table>\n");
886	if(readme != -1) {
887	struct stat s;
888	FILE* fr;
889	char* fpth;
890	addstring(&str, "<hr>\n");
891	fpth = cm_strcat3(path, "/", readmes[readme]);
892	stat(fpth, &s);
893	fr = fopen(fpth, "r");
894	if(fr != NULL) {
895	char* rmbuf = malloc(s.st_size + 1);
896	rmbuf[s.st_size] = 0;
897	fread(rmbuf, s.st_size, 1, fr);
898	addstring(&str, "<pre><code>%h</code></pre>\n", rmbuf);
899	fclose(fr);
900	free(rmbuf);
901	}
902	free(fpth);
903	}
904	addstring(&str, " <hr>\n");
905	hp = vhost_entry->hideport == -1 ? config.root.hideport : vhost_entry->hideport;
906	if(hp == 0) {
907	addstring(&str, " <address>%s Server at %s Port %d</address>\n", tw_server, name, port);
908	} else {
909	addstring(&str, " <address>%s Server at %s</address>\n", tw_server, name, port);
910	}
911	addstring(&str, " </body>\n");
912	addstring(&str, "</html>\n");
913	tw_process_page(s, sock, tw_http_status(200), "text/html", NULL, str, strlen(str), 0, 0);
914	free(str);
915	}
916	}
917	} else {
918	char* ext = NULL;
919	char* mime;
920	FILE* f;
921	for(i = strlen(req.path) - 1; i >= 0; i--) {
922	if(req.path[i] == '.') {
923	ext = cm_strdup(req.path + i);
924	break;
925	} else if(req.path[i] == '/') {
926	break;
927	}
928	}
929	mime = tw_get_mime(ext, vhost_entry);
930	if(ext != NULL) free(ext);
931	f = fopen(path, "rb");
932	if(f == NULL) {
933	tw_http_error(s, sock, 403, name, port, vhost_entry);
934	} else {
935	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, st.st_mtime, cmtime);
936	fclose(f);
937	}
938	}
939	} else {
940	if(!rej) {
941	tw_http_error(s, sock, 404, name, port, vhost_entry);
942	}
943	}
944	free(path);
945	}
946	free(vhost);
947	free(host);
948	} else if(ret == -1) {
949	} else {
950	tw_http_error(s, sock, 400, name, port, &config.root);
951	}
952	tw_free_request(&req);
953	cleanup:
954	#ifndef NO_SSL
955	if(sslworks) {
956	SSL_shutdown(s);
957	}
958	SSL_free(s);
959	#endif
960	close_socket(sock);
961	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
962	#ifdef __NETWARE__
963	ExitThread(EXIT_THREAD, 0);
964	#else
965	_endthread();
966	#endif
967	#elif defined(__HAIKU__)
968	exit_thread(0);
969	#endif
970	#ifndef NO_RETURN_THREAD
971	return 0;
972	#endif
973	}
974
975	#ifdef SERVICE
976	extern SERVICE_STATUS status;
977	extern SERVICE_STATUS_HANDLE status_handle;
978	#endif
979
980	#if defined(__MINGW32__) \|\| defined(__HAIKU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
981	struct thread_entry {
982	#ifdef __HAIKU__
983	thread_id thread;
984	#elif defined(__NETWARE__)
985	int thread;
986	#else
987	HANDLE handle;
988	#endif
989	bool used;
990	};
991	#endif
992
993	extern int running;
994
995	void tw_server_loop(void) {
996	int i;
997	#ifndef USE_POLL
998	fd_set fdset;
999	struct timeval tv;
1000	#endif
1001	#if defined(__MINGW32__) \|\| defined(__HAIKU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
1002	struct thread_entry threads[2048];
1003	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
1004	threads[i].used = false;
1005	}
1006	#endif
1007	#ifdef USE_POLL
1008	struct pollfd* pollfds = malloc(sizeof(pollfds) sockcount);
1009	for(i = 0; i < sockcount; i++) {
1010	pollfds[i].fd = sockets[i];
1011	pollfds[i].events = POLLIN \| POLLPRI;
1012	}
1013	#endif
1014	while(running) {
1015	int ret;
1016	#ifdef USE_POLL
1017	ret = poll(pollfds, sockcount, 1000);
1018	#else
1019	FD_ZERO(&fdset);
1020	for(i = 0; i < sockcount; i++) {
1021	FD_SET(sockets[i], &fdset);
1022	}
1023	tv.tv_sec = 1;
1024	tv.tv_usec = 0;
1025	#ifdef __HAIKU__
1026	ret = select(32, &fdset, NULL, NULL, &tv);
1027	#else
1028	ret = select(FD_SETSIZE, &fdset, NULL, NULL, &tv);
1029	#endif
1030	#endif
1031	if(ret == -1) {
1032	#if !defined(__MINGW32__) && !defined(_MSC_VER) && !defined(__BORLANDC__) && !defined(__WATCOMC__)
1033	if(errno == EINTR) continue;
1034	cm_log("Server", "Select failure: %s", strerror(errno));
1035	#endif
1036	break;
1037	} else if(ret == 0) {
1038	#ifdef SERVICE
1039	if(status.dwCurrentState == SERVICE_STOP_PENDING) {
1040	break;
1041	}
1042	#endif
1043	} else if(ret > 0) {
1044	/* connection */
1045	int i;
1046	for(i = 0; i < sockcount; i++) {
1047	bool cond;
1048	#ifdef USE_POLL
1049	cond = pollfds[i].revents & POLLIN;
1050	#else
1051	cond = FD_ISSET(sockets[i], &fdset);
1052	#endif
1053	if(cond) {
1054	SOCKADDR claddr;
1055	socklen_t clen = sizeof(claddr);
1056	int sock = accept(sockets[i], (struct sockaddr*)&claddr, &clen);
1057	#if defined(__MINGW32__) \|\| defined(__HAIKU__) \|\| defined(_PSP) \|\| defined(__PPU__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
1058	int j;
1059	struct pass_entry* e = malloc(sizeof(*e));
1060	cm_log("Server", "New connection accepted");
1061	e->sock = sock;
1062	#if defined(_MSC_VER) \|\| defined(__BORLANDC__)
1063	e->ssl = config.ports[i] & (1UL << 31);
1064	#else
1065	e->ssl = config.ports[i] & (1ULL << 31);
1066	#endif
1067	e->port = config.ports[i];
1068	e->addr = claddr;
1069	#endif
1070	#if defined(__MINGW32__) \|\| defined(_MSC_VER) \|\| defined(__BORLANDC__) \|\| defined(__WATCOMC__)
1071	#ifdef __OS2__
1072	_beginthread(tw_server_pass, 0, 0, e);
1073	#elif defined(__NETWARE__)
1074	BeginThread(tw_server_pass, 0, 0, e);
1075	#else
1076	_beginthread(tw_server_pass, 0, e);
1077	#endif
1078	#elif defined(_PSP) \|\| defined(__PPU__)
1079	tw_server_pass(e);
1080	#elif defined(__HAIKU__)
1081	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
1082	if(threads[j].used) {
1083	thread_info info;
1084	bool kill = false;
1085	if(get_thread_info(threads[j].thread, &info) == B_OK) {
1086	} else {
1087	kill = true;
1088	}
1089	if(kill) {
1090	threads[j].used = false;
1091	}
1092	}
1093	}
1094	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
1095	if(!threads[j].used) {
1096	threads[j].thread = spawn_thread(tw_server_pass, "Tewi HTTPd", 60, e);
1097	threads[j].used = true;
1098	resume_thread(threads[j].thread);
1099	break;
1100	}
1101	}
1102	#else
1103	pid_t pid = fork();
1104	if(pid == 0) {
1105	int j;
1106	for(j = 0; j < sockcount; j++) close_socket(sockets[j]);
1107	tw_server_pass(sock, config.ports[i] & (1ULL << 31), config.ports[i], claddr);
1108	_exit(0);
1109	} else {
1110	close_socket(sock);
1111	}
1112	#endif
1113	}
1114	}
1115	}
1116	}
1117	for(i = 0; i < sockcount; i++) {
1118	close_socket(sockets[i]);
1119	}
1120	cm_force_log("Server is down");
1121	}

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source: Main/trunk/Server/server.c@ 346

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