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