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Fixed a crash caused by yadif deinterlacer on Windows XP
[vlc/solaris.git] / src / network / httpd.c
blob5f0b5e308ac07f6ca1202177df2b1099340a0724
1 /*****************************************************************************
2 * httpd.c
3 *****************************************************************************
4 * Copyright (C) 2004-2006 VLC authors and VideoLAN
5 * Copyright © 2004-2007 Rémi Denis-Courmont
6 * $Id$
7 *
8 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * Rémi Denis-Courmont <rem # videolan.org>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 2.1 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program; if not, write to the Free Software Foundation,
23 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
25
26 #ifdef HAVE_CONFIG_H
27 # include "config.h"
28 #endif
29
30 #include <vlc_common.h>
31 #include <vlc_httpd.h>
32
33 #include <assert.h>
34
35 #include <vlc_network.h>
36 #include <vlc_tls.h>
37 #include <vlc_acl.h>
38 #include <vlc_strings.h>
39 #include <vlc_rand.h>
40 #include <vlc_charset.h>
41 #include <vlc_url.h>
42 #include "../libvlc.h"
43
44 #include <string.h>
45 #include <errno.h>
46
47 #ifdef HAVE_UNISTD_H
48 # include <unistd.h>
49 #endif
50
51 #ifdef HAVE_POLL
52 # include <poll.h>
53 #endif
54
55 #if defined( UNDER_CE )
56 # include <winsock.h>
57 #elif defined( WIN32 )
58 # include <winsock2.h>
59 #else
60 # include <sys/socket.h>
61 #endif
62
63 #if defined( WIN32 )
64 /* We need HUGE buffer otherwise TCP throughput is very limited */
65 #define HTTPD_CL_BUFSIZE 1000000
66 #else
67 #define HTTPD_CL_BUFSIZE 10000
68 #endif
69
70 static void httpd_ClientClean( httpd_client_t *cl );
71
72 /* each host run in his own thread */
73 struct httpd_host_t
74 {
75 VLC_COMMON_MEMBERS
76
77 /* ref count */
78 unsigned i_ref;
79
80 /* address/port and socket for listening at connections */
81 int *fds;
82 unsigned nfd;
83 unsigned port;
84
85 vlc_thread_t thread;
86 vlc_mutex_t lock;
87 vlc_cond_t wait;
88
89 /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
90 * This will slow down the url research but make my live easier
91 * All url will have their cb trigger, but only the first one can answer
92 * */
93 int i_url;
94 httpd_url_t **url;
95
96 int i_client;
97 httpd_client_t **client;
98
99 /* TLS data */
100 vlc_tls_creds_t *p_tls;
101 };
102
103
104 struct httpd_url_t
105 {
106 httpd_host_t *host;
107
108 vlc_mutex_t lock;
109
110 char *psz_url;
111 char *psz_user;
112 char *psz_password;
113 vlc_acl_t *p_acl;
114
115 struct
116 {
117 httpd_callback_t cb;
118 httpd_callback_sys_t *p_sys;
119 } catch[HTTPD_MSG_MAX];
120 };
121
122 /* status */
123 enum
124 {
125 HTTPD_CLIENT_RECEIVING,
126 HTTPD_CLIENT_RECEIVE_DONE,
127
128 HTTPD_CLIENT_SENDING,
129 HTTPD_CLIENT_SEND_DONE,
130
131 HTTPD_CLIENT_WAITING,
132
133 HTTPD_CLIENT_DEAD,
134
135 HTTPD_CLIENT_TLS_HS_IN,
136 HTTPD_CLIENT_TLS_HS_OUT
137 };
138
139 /* mode */
140 enum
141 {
142 HTTPD_CLIENT_FILE, /* default */
143 HTTPD_CLIENT_STREAM, /* regulary get data from cb */
144 };
145
146 struct httpd_client_t
147 {
148 httpd_url_t *url;
149
150 int i_ref;
151
152 int fd;
153
154 bool b_stream_mode;
155 uint8_t i_state;
156
157 mtime_t i_activity_date;
158 mtime_t i_activity_timeout;
159
160 /* buffer for reading header */
161 int i_buffer_size;
162 int i_buffer;
163 uint8_t *p_buffer;
164
165 /* */
166 httpd_message_t query; /* client -> httpd */
167 httpd_message_t answer; /* httpd -> client */
168
169 /* TLS data */
170 vlc_tls_t *p_tls;
171 };
172
173
174 /*****************************************************************************
175 * Various functions
176 *****************************************************************************/
177 static const struct
178 {
179 const char psz_ext[8];
180 const char *psz_mime;
181 } http_mime[] =
182 {
183 { ".htm", "text/html" },
184 { ".html", "text/html" },
185 { ".txt", "text/plain" },
186 { ".xml", "text/xml" },
187 { ".dtd", "text/dtd" },
188
189 { ".css", "text/css" },
190
191 /* image mime */
192 { ".gif", "image/gif" },
193 { ".jpe", "image/jpeg" },
194 { ".jpg", "image/jpeg" },
195 { ".jpeg", "image/jpeg" },
196 { ".png", "image/png" },
197 /* same as modules/mux/mpjpeg.c here: */
198 { ".mpjpeg","multipart/x-mixed-replace; boundary=7b3cc56e5f51db803f790dad720ed50a" },
199
200 /* media mime */
201 { ".avi", "video/avi" },
202 { ".asf", "video/x-ms-asf" },
203 { ".m1a", "audio/mpeg" },
204 { ".m2a", "audio/mpeg" },
205 { ".m1v", "video/mpeg" },
206 { ".m2v", "video/mpeg" },
207 { ".mp2", "audio/mpeg" },
208 { ".mp3", "audio/mpeg" },
209 { ".mpa", "audio/mpeg" },
210 { ".mpg", "video/mpeg" },
211 { ".mpeg", "video/mpeg" },
212 { ".mpe", "video/mpeg" },
213 { ".mov", "video/quicktime" },
214 { ".moov", "video/quicktime" },
215 { ".oga", "audio/ogg" },
216 { ".ogg", "application/ogg" },
217 { ".ogm", "application/ogg" },
218 { ".ogv", "video/ogg" },
219 { ".ogx", "application/ogg" },
220 { ".spx", "audio/ogg" },
221 { ".wav", "audio/wav" },
222 { ".wma", "audio/x-ms-wma" },
223 { ".wmv", "video/x-ms-wmv" },
224
225
226 /* end */
227 { "", "" }
228 };
229
230 static const char *httpd_MimeFromUrl( const char *psz_url )
231 {
232
233 char *psz_ext;
234
235 psz_ext = strrchr( psz_url, '.' );
236 if( psz_ext )
237 {
238 int i;
239
240 for( i = 0; http_mime[i].psz_ext[0] ; i++ )
241 {
242 if( !strcasecmp( http_mime[i].psz_ext, psz_ext ) )
243 {
244 return http_mime[i].psz_mime;
245 }
246 }
247 }
248 return "application/octet-stream";
249 }
250
251
252 typedef struct
253 {
254 unsigned i_code;
255 const char psz_reason[36];
256 } http_status_info;
257
258 static const http_status_info http_reason[] =
259 {
260 /*{ 100, "Continue" },
261 { 101, "Switching Protocols" },*/
262 { 200, "OK" },
263 /*{ 201, "Created" },
264 { 202, "Accepted" },
265 { 203, "Non-authoritative information" },
266 { 204, "No content" },
267 { 205, "Reset content" },
268 { 206, "Partial content" },
269 { 250, "Low on storage space" },
270 { 300, "Multiple choices" },*/
271 { 301, "Moved permanently" },
272 /*{ 302, "Moved temporarily" },
273 { 303, "See other" },
274 { 304, "Not modified" },
275 { 305, "Use proxy" },
276 { 307, "Temporary redirect" },
277 { 400, "Bad request" },*/
278 { 401, "Unauthorized" },
279 /*{ 402, "Payment Required" },*/
280 { 403, "Forbidden" },
281 { 404, "Not found" },
282 { 405, "Method not allowed" },
283 /*{ 406, "Not acceptable" },
284 { 407, "Proxy authentication required" },
285 { 408, "Request time-out" },
286 { 409, "Conflict" },
287 { 410, "Gone" },
288 { 411, "Length required" },
289 { 412, "Precondition failed" },
290 { 413, "Request entity too large" },
291 { 414, "Request-URI too large" },
292 { 415, "Unsupported media Type" },
293 { 416, "Requested range not satisfiable" },
294 { 417, "Expectation failed" },
295 { 451, "Parameter not understood" },
296 { 452, "Conference not found" },
297 { 453, "Not enough bandwidth" },*/
298 { 454, "Session not found" },
299 { 455, "Method not valid in this State" },
300 { 456, "Header field not valid for resource" },
301 { 457, "Invalid range" },
302 /*{ 458, "Read-only parameter" },*/
303 { 459, "Aggregate operation not allowed" },
304 { 460, "Non-aggregate operation not allowed" },
305 { 461, "Unsupported transport" },
306 /*{ 462, "Destination unreachable" },*/
307 { 500, "Internal server error" },
308 { 501, "Not implemented" },
309 /*{ 502, "Bad gateway" },*/
310 { 503, "Service unavailable" },
311 /*{ 504, "Gateway time-out" },*/
312 { 505, "Protocol version not supported" },
313 { 551, "Option not supported" },
314 { 999, "" }
315 };
316
317 static const char psz_fallback_reason[5][16] =
318 { "Continue", "OK", "Found", "Client error", "Server error" };
319
320 static const char *httpd_ReasonFromCode( unsigned i_code )
321 {
322 const http_status_info *p;
323
324 assert( ( i_code >= 100 ) && ( i_code <= 599 ) );
325
326 for (p = http_reason; i_code > p->i_code; p++);
327
328 if( p->i_code == i_code )
329 return p->psz_reason;
330
331 return psz_fallback_reason[(i_code / 100) - 1];
332 }
333
334
335 static size_t httpd_HtmlError (char **body, int code, const char *url)
336 {
337 const char *errname = httpd_ReasonFromCode (code);
338 assert (errname != NULL);
339
340 int res = asprintf (body,
341 "<?xml version=\"1.0\" encoding=\"ascii\" ?>\n"
342 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\""
343 " \"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
344 "<html lang=\"en\">\n"
345 "<head>\n"
346 "<title>%s</title>\n"
347 "</head>\n"
348 "<body>\n"
349 "<h1>%d %s%s%s%s</h1>\n"
350 "<hr />\n"
351 "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
352 "</body>\n"
353 "</html>\n", errname, code, errname,
354 (url ? " (" : ""), (url ? url : ""), (url ? ")" : ""));
355
356 if (res == -1)
357 {
358 *body = NULL;
359 return 0;
360 }
361
362 return (size_t)res;
363 }
364
365
366 /*****************************************************************************
367 * High Level Functions: httpd_file_t
368 *****************************************************************************/
369 struct httpd_file_t
370 {
371 httpd_url_t *url;
372
373 char *psz_url;
374 char *psz_mime;
375
376 httpd_file_callback_t pf_fill;
377 httpd_file_sys_t *p_sys;
378
379 };
380
381 static int
382 httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
383 httpd_message_t *answer, const httpd_message_t *query )
384 {
385 httpd_file_t *file = (httpd_file_t*)p_sys;
386 uint8_t **pp_body, *p_body;
387 const char *psz_connection;
388 int *pi_body, i_body;
389
390 if( answer == NULL || query == NULL )
391 {
392 return VLC_SUCCESS;
393 }
394 answer->i_proto = HTTPD_PROTO_HTTP;
395 answer->i_version= 1;
396 answer->i_type = HTTPD_MSG_ANSWER;
397
398 answer->i_status = 200;
399
400 httpd_MsgAdd( answer, "Content-type", "%s", file->psz_mime );
401 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
402
403 if( query->i_type != HTTPD_MSG_HEAD )
404 {
405 pp_body = &answer->p_body;
406 pi_body = &answer->i_body;
407 }
408 else
409 {
410 /* The file still needs to be executed. */
411 p_body = NULL;
412 i_body = 0;
413 pp_body = &p_body;
414 pi_body = &i_body;
415 }
416
417 if( query->i_type == HTTPD_MSG_POST )
418 {
419 /* msg_Warn not supported */
420 }
421
422 uint8_t *psz_args = query->psz_args;
423 file->pf_fill( file->p_sys, file, psz_args, pp_body, pi_body );
424
425 if( query->i_type == HTTPD_MSG_HEAD && p_body != NULL )
426 {
427 free( p_body );
428 }
429
430 /* We respect client request */
431 psz_connection = httpd_MsgGet( &cl->query, "Connection" );
432 if( psz_connection != NULL )
433 {
434 httpd_MsgAdd( answer, "Connection", "%s", psz_connection );
435 }
436
437 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
438
439 return VLC_SUCCESS;
440 }
441
442 httpd_file_t *httpd_FileNew( httpd_host_t *host,
443 const char *psz_url, const char *psz_mime,
444 const char *psz_user, const char *psz_password,
445 const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
446 httpd_file_sys_t *p_sys )
447 {
448 httpd_file_t *file = xmalloc( sizeof( httpd_file_t ) );
449
450 if( ( file->url = httpd_UrlNewUnique( host, psz_url, psz_user,
451 psz_password, p_acl )
452 ) == NULL )
453 {
454 free( file );
455 return NULL;
456 }
457
458 file->psz_url = strdup( psz_url );
459 if( psz_mime && *psz_mime )
460 {
461 file->psz_mime = strdup( psz_mime );
462 }
463 else
464 {
465 file->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
466 }
467
468 file->pf_fill = pf_fill;
469 file->p_sys = p_sys;
470
471 httpd_UrlCatch( file->url, HTTPD_MSG_HEAD, httpd_FileCallBack,
472 (httpd_callback_sys_t*)file );
473 httpd_UrlCatch( file->url, HTTPD_MSG_GET, httpd_FileCallBack,
474 (httpd_callback_sys_t*)file );
475 httpd_UrlCatch( file->url, HTTPD_MSG_POST, httpd_FileCallBack,
476 (httpd_callback_sys_t*)file );
477
478 return file;
479 }
480
481 httpd_file_sys_t *httpd_FileDelete( httpd_file_t *file )
482 {
483 httpd_file_sys_t *p_sys = file->p_sys;
484
485 httpd_UrlDelete( file->url );
486
487 free( file->psz_url );
488 free( file->psz_mime );
489
490 free( file );
491
492 return p_sys;
493 }
494
495 /*****************************************************************************
496 * High Level Functions: httpd_handler_t (for CGIs)
497 *****************************************************************************/
498 struct httpd_handler_t
499 {
500 httpd_url_t *url;
501
502 httpd_handler_callback_t pf_fill;
503 httpd_handler_sys_t *p_sys;
504
505 };
506
507 static int
508 httpd_HandlerCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
509 httpd_message_t *answer, const httpd_message_t *query )
510 {
511 httpd_handler_t *handler = (httpd_handler_t*)p_sys;
512 char psz_remote_addr[NI_MAXNUMERICHOST];
513
514 if( answer == NULL || query == NULL )
515 {
516 return VLC_SUCCESS;
517 }
518 answer->i_proto = HTTPD_PROTO_NONE;
519 answer->i_type = HTTPD_MSG_ANSWER;
520
521 /* We do it ourselves, thanks */
522 answer->i_status = 0;
523
524 if( httpd_ClientIP( cl, psz_remote_addr, NULL ) == NULL )
525 *psz_remote_addr = '\0';
526
527 uint8_t *psz_args = query->psz_args;
528 handler->pf_fill( handler->p_sys, handler, query->psz_url, psz_args,
529 query->i_type, query->p_body, query->i_body,
530 psz_remote_addr, NULL,
531 &answer->p_body, &answer->i_body );
532
533 if( query->i_type == HTTPD_MSG_HEAD )
534 {
535 char *p = (char *)answer->p_body;
536
537 /* Looks for end of header (i.e. one empty line) */
538 while ( (p = strchr( p, '\r' )) != NULL )
539 {
540 if( p[1] && p[1] == '\n' && p[2] && p[2] == '\r'
541 && p[3] && p[3] == '\n' )
542 {
543 break;
544 }
545 }
546
547 if( p != NULL )
548 {
549 p[4] = '\0';
550 answer->i_body = strlen((char*)answer->p_body) + 1;
551 answer->p_body = xrealloc( answer->p_body, answer->i_body );
552 }
553 }
554
555 if( strncmp( (char *)answer->p_body, "HTTP/1.", 7 ) )
556 {
557 int i_status, i_headers;
558 char *psz_headers, *psz_new;
559 const char *psz_status;
560
561 if( !strncmp( (char *)answer->p_body, "Status: ", 8 ) )
562 {
563 /* Apache-style */
564 i_status = strtol( (char *)&answer->p_body[8], &psz_headers, 0 );
565 if( *psz_headers == '\r' || *psz_headers == '\n' ) psz_headers++;
566 if( *psz_headers == '\n' ) psz_headers++;
567 i_headers = answer->i_body - (psz_headers - (char *)answer->p_body);
568 }
569 else
570 {
571 i_status = 200;
572 psz_headers = (char *)answer->p_body;
573 i_headers = answer->i_body;
574 }
575
576 psz_status = httpd_ReasonFromCode( i_status );
577 answer->i_body = sizeof("HTTP/1.0 xxx \r\n")
578 + strlen(psz_status) + i_headers - 1;
579 psz_new = (char *)xmalloc( answer->i_body + 1);
580 sprintf( psz_new, "HTTP/1.0 %03d %s\r\n", i_status, psz_status );
581 memcpy( &psz_new[strlen(psz_new)], psz_headers, i_headers );
582 free( answer->p_body );
583 answer->p_body = (uint8_t *)psz_new;
584 }
585
586 return VLC_SUCCESS;
587 }
588
589 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
590 const char *psz_user,
591 const char *psz_password,
592 const vlc_acl_t *p_acl,
593 httpd_handler_callback_t pf_fill,
594 httpd_handler_sys_t *p_sys )
595 {
596 httpd_handler_t *handler = xmalloc( sizeof( httpd_handler_t ) );
597
598 if( ( handler->url = httpd_UrlNewUnique( host, psz_url, psz_user,
599 psz_password, p_acl )
600 ) == NULL )
601 {
602 free( handler );
603 return NULL;
604 }
605
606 handler->pf_fill = pf_fill;
607 handler->p_sys = p_sys;
608
609 httpd_UrlCatch( handler->url, HTTPD_MSG_HEAD, httpd_HandlerCallBack,
610 (httpd_callback_sys_t*)handler );
611 httpd_UrlCatch( handler->url, HTTPD_MSG_GET, httpd_HandlerCallBack,
612 (httpd_callback_sys_t*)handler );
613 httpd_UrlCatch( handler->url, HTTPD_MSG_POST, httpd_HandlerCallBack,
614 (httpd_callback_sys_t*)handler );
615
616 return handler;
617 }
618
619 httpd_handler_sys_t *httpd_HandlerDelete( httpd_handler_t *handler )
620 {
621 httpd_handler_sys_t *p_sys = handler->p_sys;
622 httpd_UrlDelete( handler->url );
623 free( handler );
624 return p_sys;
625 }
626
627 /*****************************************************************************
628 * High Level Functions: httpd_redirect_t
629 *****************************************************************************/
630 struct httpd_redirect_t
631 {
632 httpd_url_t *url;
633 char *psz_dst;
634 };
635
636 static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
637 httpd_client_t *cl, httpd_message_t *answer,
638 const httpd_message_t *query )
639 {
640 httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
641 char *p_body;
642 (void)cl;
643
644 if( answer == NULL || query == NULL )
645 {
646 return VLC_SUCCESS;
647 }
648 answer->i_proto = HTTPD_PROTO_HTTP;
649 answer->i_version= 1;
650 answer->i_type = HTTPD_MSG_ANSWER;
651 answer->i_status = 301;
652
653 answer->i_body = httpd_HtmlError (&p_body, 301, rdir->psz_dst);
654 answer->p_body = (unsigned char *)p_body;
655
656 /* XXX check if it's ok or we need to set an absolute url */
657 httpd_MsgAdd( answer, "Location", "%s", rdir->psz_dst );
658
659 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
660
661 return VLC_SUCCESS;
662 }
663
664 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
665 const char *psz_url_src )
666 {
667 httpd_redirect_t *rdir = xmalloc( sizeof( httpd_redirect_t ) );
668
669 if( !( rdir->url = httpd_UrlNewUnique( host, psz_url_src, NULL, NULL, NULL ) ) )
670 {
671 free( rdir );
672 return NULL;
673 }
674 rdir->psz_dst = strdup( psz_url_dst );
675
676 /* Redirect apply for all HTTP request and RTSP DESCRIBE resquest */
677 httpd_UrlCatch( rdir->url, HTTPD_MSG_HEAD, httpd_RedirectCallBack,
678 (httpd_callback_sys_t*)rdir );
679 httpd_UrlCatch( rdir->url, HTTPD_MSG_GET, httpd_RedirectCallBack,
680 (httpd_callback_sys_t*)rdir );
681 httpd_UrlCatch( rdir->url, HTTPD_MSG_POST, httpd_RedirectCallBack,
682 (httpd_callback_sys_t*)rdir );
683 httpd_UrlCatch( rdir->url, HTTPD_MSG_DESCRIBE, httpd_RedirectCallBack,
684 (httpd_callback_sys_t*)rdir );
685
686 return rdir;
687 }
688 void httpd_RedirectDelete( httpd_redirect_t *rdir )
689 {
690 httpd_UrlDelete( rdir->url );
691 free( rdir->psz_dst );
692 free( rdir );
693 }
694
695 /*****************************************************************************
696 * High Level Funtions: httpd_stream_t
697 *****************************************************************************/
698 struct httpd_stream_t
699 {
700 vlc_mutex_t lock;
701 httpd_url_t *url;
702
703 char *psz_mime;
704
705 /* Header to send as first packet */
706 uint8_t *p_header;
707 int i_header;
708
709 /* circular buffer */
710 int i_buffer_size; /* buffer size, can't be reallocated smaller */
711 uint8_t *p_buffer; /* buffer */
712 int64_t i_buffer_pos; /* absolute position from begining */
713 int64_t i_buffer_last_pos; /* a new connection will start with that */
714 };
715
716 static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
717 httpd_client_t *cl, httpd_message_t *answer,
718 const httpd_message_t *query )
719 {
720 httpd_stream_t *stream = (httpd_stream_t*)p_sys;
721
722 if( answer == NULL || query == NULL || cl == NULL )
723 {
724 return VLC_SUCCESS;
725 }
726
727 if( answer->i_body_offset > 0 )
728 {
729 int64_t i_write;
730 int i_pos;
731
732 #if 0
733 fprintf( stderr, "httpd_StreamCallBack i_body_offset=%lld\n",
734 answer->i_body_offset );
735 #endif
736
737 if( answer->i_body_offset >= stream->i_buffer_pos )
738 {
739 /* fprintf( stderr, "httpd_StreamCallBack: no data\n" ); */
740 return VLC_EGENERIC; /* wait, no data available */
741 }
742 if( answer->i_body_offset + stream->i_buffer_size <
743 stream->i_buffer_pos )
744 {
745 /* this client isn't fast enough */
746 #if 0
747 fprintf( stderr, "fixing i_body_offset (old=%lld new=%lld)\n",
748 answer->i_body_offset, stream->i_buffer_last_pos );
749 #endif
750 answer->i_body_offset = stream->i_buffer_last_pos;
751 }
752
753 i_pos = answer->i_body_offset % stream->i_buffer_size;
754 i_write = stream->i_buffer_pos - answer->i_body_offset;
755 if( i_write > HTTPD_CL_BUFSIZE )
756 {
757 i_write = HTTPD_CL_BUFSIZE;
758 }
759 else if( i_write <= 0 )
760 {
761 return VLC_EGENERIC; /* wait, no data available */
762 }
763
764 /* Don't go past the end of the circular buffer */
765 i_write = __MIN( i_write, stream->i_buffer_size - i_pos );
766
767 /* using HTTPD_MSG_ANSWER -> data available */
768 answer->i_proto = HTTPD_PROTO_HTTP;
769 answer->i_version= 0;
770 answer->i_type = HTTPD_MSG_ANSWER;
771
772 answer->i_body = i_write;
773 answer->p_body = xmalloc( i_write );
774 memcpy( answer->p_body, &stream->p_buffer[i_pos], i_write );
775
776 answer->i_body_offset += i_write;
777
778 return VLC_SUCCESS;
779 }
780 else
781 {
782 answer->i_proto = HTTPD_PROTO_HTTP;
783 answer->i_version= 0;
784 answer->i_type = HTTPD_MSG_ANSWER;
785
786 answer->i_status = 200;
787
788 if( query->i_type != HTTPD_MSG_HEAD )
789 {
790 cl->b_stream_mode = true;
791 vlc_mutex_lock( &stream->lock );
792 /* Send the header */
793 if( stream->i_header > 0 )
794 {
795 answer->i_body = stream->i_header;
796 answer->p_body = xmalloc( stream->i_header );
797 memcpy( answer->p_body, stream->p_header, stream->i_header );
798 }
799 answer->i_body_offset = stream->i_buffer_last_pos;
800 vlc_mutex_unlock( &stream->lock );
801 }
802 else
803 {
804 httpd_MsgAdd( answer, "Content-Length", "%d", 0 );
805 answer->i_body_offset = 0;
806 }
807
808 if( !strcmp( stream->psz_mime, "video/x-ms-asf-stream" ) )
809 {
810 bool b_xplaystream = false;
811 int i;
812
813 httpd_MsgAdd( answer, "Content-type", "%s",
814 "application/octet-stream" );
815 httpd_MsgAdd( answer, "Server", "Cougar 4.1.0.3921" );
816 httpd_MsgAdd( answer, "Pragma", "no-cache" );
817 httpd_MsgAdd( answer, "Pragma", "client-id=%lu",
818 vlc_mrand48()&0x7fff );
819 httpd_MsgAdd( answer, "Pragma", "features=\"broadcast\"" );
820
821 /* Check if there is a xPlayStrm=1 */
822 for( i = 0; i < query->i_name; i++ )
823 {
824 if( !strcasecmp( query->name[i], "Pragma" ) &&
825 strstr( query->value[i], "xPlayStrm=1" ) )
826 {
827 b_xplaystream = true;
828 }
829 }
830
831 if( !b_xplaystream )
832 {
833 answer->i_body_offset = 0;
834 }
835 }
836 else
837 {
838 httpd_MsgAdd( answer, "Content-type", "%s", stream->psz_mime );
839 }
840 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
841 return VLC_SUCCESS;
842 }
843 }
844
845 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
846 const char *psz_url, const char *psz_mime,
847 const char *psz_user, const char *psz_password,
848 const vlc_acl_t *p_acl )
849 {
850 httpd_stream_t *stream = xmalloc( sizeof( httpd_stream_t ) );
851
852 if( ( stream->url = httpd_UrlNewUnique( host, psz_url, psz_user,
853 psz_password, p_acl )
854 ) == NULL )
855 {
856 free( stream );
857 return NULL;
858 }
859 vlc_mutex_init( &stream->lock );
860 if( psz_mime && *psz_mime )
861 {
862 stream->psz_mime = strdup( psz_mime );
863 }
864 else
865 {
866 stream->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
867 }
868 stream->i_header = 0;
869 stream->p_header = NULL;
870 stream->i_buffer_size = 5000000; /* 5 Mo per stream */
871 stream->p_buffer = xmalloc( stream->i_buffer_size );
872 /* We set to 1 to make life simpler
873 * (this way i_body_offset can never be 0) */
874 stream->i_buffer_pos = 1;
875 stream->i_buffer_last_pos = 1;
876
877 httpd_UrlCatch( stream->url, HTTPD_MSG_HEAD, httpd_StreamCallBack,
878 (httpd_callback_sys_t*)stream );
879 httpd_UrlCatch( stream->url, HTTPD_MSG_GET, httpd_StreamCallBack,
880 (httpd_callback_sys_t*)stream );
881 httpd_UrlCatch( stream->url, HTTPD_MSG_POST, httpd_StreamCallBack,
882 (httpd_callback_sys_t*)stream );
883
884 return stream;
885 }
886
887 int httpd_StreamHeader( httpd_stream_t *stream, uint8_t *p_data, int i_data )
888 {
889 vlc_mutex_lock( &stream->lock );
890 free( stream->p_header );
891 stream->p_header = NULL;
892
893 stream->i_header = i_data;
894 if( i_data > 0 )
895 {
896 stream->p_header = xmalloc( i_data );
897 memcpy( stream->p_header, p_data, i_data );
898 }
899 vlc_mutex_unlock( &stream->lock );
900
901 return VLC_SUCCESS;
902 }
903
904 int httpd_StreamSend( httpd_stream_t *stream, uint8_t *p_data, int i_data )
905 {
906 int i_count;
907 int i_pos;
908
909 if( i_data < 0 || p_data == NULL )
910 {
911 return VLC_SUCCESS;
912 }
913 vlc_mutex_lock( &stream->lock );
914
915 /* save this pointer (to be used by new connection) */
916 stream->i_buffer_last_pos = stream->i_buffer_pos;
917
918 i_pos = stream->i_buffer_pos % stream->i_buffer_size;
919 i_count = i_data;
920 while( i_count > 0)
921 {
922 int i_copy;
923
924 i_copy = __MIN( i_count, stream->i_buffer_size - i_pos );
925
926 /* Ok, we can't go past the end of our buffer */
927 memcpy( &stream->p_buffer[i_pos], p_data, i_copy );
928
929 i_pos = ( i_pos + i_copy ) % stream->i_buffer_size;
930 i_count -= i_copy;
931 p_data += i_copy;
932 }
933
934 stream->i_buffer_pos += i_data;
935
936 vlc_mutex_unlock( &stream->lock );
937 return VLC_SUCCESS;
938 }
939
940 void httpd_StreamDelete( httpd_stream_t *stream )
941 {
942 httpd_UrlDelete( stream->url );
943 vlc_mutex_destroy( &stream->lock );
944 free( stream->psz_mime );
945 free( stream->p_header );
946 free( stream->p_buffer );
947 free( stream );
948 }
949
950 /*****************************************************************************
951 * Low level
952 *****************************************************************************/
953 static void* httpd_HostThread( void * );
954 static httpd_host_t *httpd_HostCreate( vlc_object_t *, const char *,
955 const char *, vlc_tls_creds_t * );
956
957 /* create a new host */
958 httpd_host_t *vlc_http_HostNew( vlc_object_t *p_this )
959 {
960 return httpd_HostCreate( p_this, "http-host", "http-port", NULL );
961 }
962
963 httpd_host_t *vlc_https_HostNew( vlc_object_t *obj )
964 {
965 char *cert = var_InheritString( obj, "http-cert" );
966 if( cert == NULL )
967 {
968 msg_Err( obj, "HTTP/TLS certificate not specified!" );
969 return NULL;
970 }
971
972 char *key = var_InheritString( obj, "http-key" );
973 vlc_tls_creds_t *tls = vlc_tls_ServerCreate( obj, cert, key );
974
975 if( tls == NULL )
976 {
977 msg_Err( obj, "HTTP/TLS certificate error (%s and %s)",
978 cert, (key != NULL) ? key : cert );
979 free( key );
980 free( cert );
981 return NULL;
982 }
983 free( key );
984 free( cert );
985
986 char *ca = var_InheritString( obj, "http-ca" );
987 if( ca != NULL )
988 {
989 if( vlc_tls_ServerAddCA( tls, ca ) )
990 {
991 msg_Err( obj, "HTTP/TLS CA error (%s)", ca );
992 free( ca );
993 goto error;
994 }
995 free( ca );
996 }
997
998 char *crl = var_InheritString( obj, "http-crl" );
999 if( crl != NULL )
1000 {
1001 if( vlc_tls_ServerAddCRL( tls, crl ) )
1002 {
1003 msg_Err( obj, "TLS CRL error (%s)", crl );
1004 free( crl );
1005 goto error;
1006 }
1007 free( crl );
1008 }
1009
1010 return httpd_HostCreate( obj, "http-host", "https-port", tls );
1011
1012 error:
1013 vlc_tls_ServerDelete( tls );
1014 return NULL;
1015 }
1016
1017 httpd_host_t *vlc_rtsp_HostNew( vlc_object_t *p_this )
1018 {
1019 return httpd_HostCreate( p_this, "rtsp-host", "rtsp-port", NULL );
1020 }
1021
1022 static struct httpd_t
1023 {
1024 vlc_mutex_t mutex;
1025
1026 httpd_host_t **host;
1027 int i_host;
1028 } httpd = { VLC_STATIC_MUTEX, NULL, 0 };
1029
1030 static httpd_host_t *httpd_HostCreate( vlc_object_t *p_this,
1031 const char *hostvar,
1032 const char *portvar,
1033 vlc_tls_creds_t *p_tls )
1034 {
1035 httpd_host_t *host;
1036 char *hostname = var_InheritString( p_this, hostvar );
1037 unsigned port = var_InheritInteger( p_this, portvar );
1038
1039 vlc_url_t url;
1040 vlc_UrlParse( &url, hostname, 0 );
1041 free( hostname );
1042 if( url.i_port != 0 )
1043 {
1044 msg_Err( p_this, "Ignoring port %d (using %d)", url.i_port, port );
1045 msg_Info( p_this, "Specify port %d separately with the "
1046 "%s option instead.", url.i_port, portvar );
1047 }
1048
1049 /* to be sure to avoid multiple creation */
1050 vlc_mutex_lock( &httpd.mutex );
1051
1052 /* verify if it already exist */
1053 for( int i = 0; i < httpd.i_host; i++ )
1054 {
1055 host = httpd.host[i];
1056
1057 /* cannot mix TLS and non-TLS hosts */
1058 if( host->port != port
1059 || (host->p_tls != NULL) != (p_tls != NULL) )
1060 continue;
1061
1062 /* Increase existing matching host reference count.
1063 * The reference count is written under both the global httpd and the
1064 * host lock. It is read with either or both locks held. The global
1065 * lock is always acquired first. */
1066 vlc_mutex_lock( &host->lock );
1067 host->i_ref++;
1068 vlc_mutex_unlock( &host->lock );
1069
1070 vlc_mutex_unlock( &httpd.mutex );
1071 vlc_UrlClean( &url );
1072 if( p_tls != NULL )
1073 vlc_tls_ServerDelete( p_tls );
1074 return host;
1075 }
1076
1077 /* create the new host */
1078 host = (httpd_host_t *)vlc_custom_create( p_this, sizeof (*host),
1079 "http host" );
1080 if (host == NULL)
1081 goto error;
1082
1083 vlc_mutex_init( &host->lock );
1084 vlc_cond_init( &host->wait );
1085 host->i_ref = 1;
1086
1087 host->fds = net_ListenTCP( p_this, url.psz_host, port );
1088 if( host->fds == NULL )
1089 {
1090 msg_Err( p_this, "cannot create socket(s) for HTTP host" );
1091 goto error;
1092 }
1093 for (host->nfd = 0; host->fds[host->nfd] != -1; host->nfd++);
1094
1095 if( vlc_object_waitpipe( VLC_OBJECT( host ) ) == -1 )
1096 {
1097 msg_Err( host, "signaling pipe error: %m" );
1098 goto error;
1099 }
1100
1101 host->port = port;
1102 host->i_url = 0;
1103 host->url = NULL;
1104 host->i_client = 0;
1105 host->client = NULL;
1106 host->p_tls = p_tls;
1107
1108 /* create the thread */
1109 if( vlc_clone( &host->thread, httpd_HostThread, host,
1110 VLC_THREAD_PRIORITY_LOW ) )
1111 {
1112 msg_Err( p_this, "cannot spawn http host thread" );
1113 goto error;
1114 }
1115
1116 /* now add it to httpd */
1117 TAB_APPEND( httpd.i_host, httpd.host, host );
1118 vlc_mutex_unlock( &httpd.mutex );
1119
1120 vlc_UrlClean( &url );
1121
1122 return host;
1123
1124 error:
1125 vlc_mutex_unlock( &httpd.mutex );
1126
1127 if( host != NULL )
1128 {
1129 net_ListenClose( host->fds );
1130 vlc_cond_destroy( &host->wait );
1131 vlc_mutex_destroy( &host->lock );
1132 vlc_object_release( host );
1133 }
1134
1135 vlc_UrlClean( &url );
1136
1137 if( p_tls != NULL )
1138 vlc_tls_ServerDelete( p_tls );
1139
1140 return NULL;
1141 }
1142
1143 /* delete a host */
1144 void httpd_HostDelete( httpd_host_t *host )
1145 {
1146 int i;
1147 bool delete = false;
1148
1149 vlc_mutex_lock( &httpd.mutex );
1150
1151 vlc_mutex_lock( &host->lock );
1152 host->i_ref--;
1153 if( host->i_ref == 0 )
1154 {
1155 vlc_cond_signal( &host->wait );
1156 delete = true;
1157 }
1158 vlc_mutex_unlock( &host->lock );
1159 if( !delete )
1160 {
1161 /* still used */
1162 vlc_mutex_unlock( &httpd.mutex );
1163 msg_Dbg( host, "httpd_HostDelete: host still in use" );
1164 return;
1165 }
1166 TAB_REMOVE( httpd.i_host, httpd.host, host );
1167
1168 vlc_object_kill( host );
1169 vlc_join( host->thread, NULL );
1170
1171 msg_Dbg( host, "HTTP host removed" );
1172
1173 for( i = 0; i < host->i_url; i++ )
1174 {
1175 msg_Err( host, "url still registered: %s", host->url[i]->psz_url );
1176 }
1177 for( i = 0; i < host->i_client; i++ )
1178 {
1179 httpd_client_t *cl = host->client[i];
1180 msg_Warn( host, "client still connected" );
1181 httpd_ClientClean( cl );
1182 TAB_REMOVE( host->i_client, host->client, cl );
1183 free( cl );
1184 i--;
1185 /* TODO */
1186 }
1187
1188 if( host->p_tls != NULL)
1189 vlc_tls_ServerDelete( host->p_tls );
1190
1191 net_ListenClose( host->fds );
1192 vlc_cond_destroy( &host->wait );
1193 vlc_mutex_destroy( &host->lock );
1194 vlc_object_release( host );
1195 vlc_mutex_unlock( &httpd.mutex );
1196 }
1197
1198 /* register a new url */
1199 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, const char *psz_url,
1200 const char *psz_user, const char *psz_password,
1201 const vlc_acl_t *p_acl, bool b_check )
1202 {
1203 httpd_url_t *url;
1204 int i;
1205
1206 assert( psz_url != NULL );
1207
1208 vlc_mutex_lock( &host->lock );
1209 if( b_check )
1210 {
1211 for( i = 0; i < host->i_url; i++ )
1212 {
1213 if( !strcmp( psz_url, host->url[i]->psz_url ) )
1214 {
1215 msg_Warn( host,
1216 "cannot add '%s' (url already defined)", psz_url );
1217 vlc_mutex_unlock( &host->lock );
1218 return NULL;
1219 }
1220 }
1221 }
1222
1223 url = xmalloc( sizeof( httpd_url_t ) );
1224 url->host = host;
1225
1226 vlc_mutex_init( &url->lock );
1227 url->psz_url = strdup( psz_url );
1228 url->psz_user = strdup( psz_user ? psz_user : "" );
1229 url->psz_password = strdup( psz_password ? psz_password : "" );
1230 url->p_acl = ACL_Duplicate( host, p_acl );
1231 for( i = 0; i < HTTPD_MSG_MAX; i++ )
1232 {
1233 url->catch[i].cb = NULL;
1234 url->catch[i].p_sys = NULL;
1235 }
1236
1237 TAB_APPEND( host->i_url, host->url, url );
1238 vlc_cond_signal( &host->wait );
1239 vlc_mutex_unlock( &host->lock );
1240
1241 return url;
1242 }
1243
1244 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
1245 const char *psz_user, const char *psz_password,
1246 const vlc_acl_t *p_acl )
1247 {
1248 return httpd_UrlNewPrivate( host, psz_url, psz_user,
1249 psz_password, p_acl, false );
1250 }
1251
1252 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
1253 const char *psz_user, const char *psz_password,
1254 const vlc_acl_t *p_acl )
1255 {
1256 return httpd_UrlNewPrivate( host, psz_url, psz_user,
1257 psz_password, p_acl, true );
1258 }
1259
1260 /* register callback on a url */
1261 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1262 httpd_callback_sys_t *p_sys )
1263 {
1264 vlc_mutex_lock( &url->lock );
1265 url->catch[i_msg].cb = cb;
1266 url->catch[i_msg].p_sys= p_sys;
1267 vlc_mutex_unlock( &url->lock );
1268
1269 return VLC_SUCCESS;
1270 }
1271
1272 /* delete a url */
1273 void httpd_UrlDelete( httpd_url_t *url )
1274 {
1275 httpd_host_t *host = url->host;
1276 int i;
1277
1278 vlc_mutex_lock( &host->lock );
1279 TAB_REMOVE( host->i_url, host->url, url );
1280
1281 vlc_mutex_destroy( &url->lock );
1282 free( url->psz_url );
1283 free( url->psz_user );
1284 free( url->psz_password );
1285 ACL_Destroy( url->p_acl );
1286
1287 for( i = 0; i < host->i_client; i++ )
1288 {
1289 httpd_client_t *client = host->client[i];
1290
1291 if( client->url == url )
1292 {
1293 /* TODO complete it */
1294 msg_Warn( host, "force closing connections" );
1295 httpd_ClientClean( client );
1296 TAB_REMOVE( host->i_client, host->client, client );
1297 free( client );
1298 i--;
1299 }
1300 }
1301 free( url );
1302 vlc_mutex_unlock( &host->lock );
1303 }
1304
1305 static void httpd_MsgInit( httpd_message_t *msg )
1306 {
1307 msg->cl = NULL;
1308 msg->i_type = HTTPD_MSG_NONE;
1309 msg->i_proto = HTTPD_PROTO_NONE;
1310 msg->i_version = -1; /* FIXME */
1311
1312 msg->i_status = 0;
1313
1314 msg->psz_url = NULL;
1315 msg->psz_args = NULL;
1316
1317 msg->i_name = 0;
1318 msg->name = NULL;
1319 msg->i_value = 0;
1320 msg->value = NULL;
1321
1322 msg->i_body_offset = 0;
1323 msg->i_body = 0;
1324 msg->p_body = NULL;
1325 }
1326
1327 static void httpd_MsgClean( httpd_message_t *msg )
1328 {
1329 int i;
1330
1331 free( msg->psz_url );
1332 free( msg->psz_args );
1333 for( i = 0; i < msg->i_name; i++ )
1334 {
1335 free( msg->name[i] );
1336 free( msg->value[i] );
1337 }
1338 free( msg->name );
1339 free( msg->value );
1340 free( msg->p_body );
1341 httpd_MsgInit( msg );
1342 }
1343
1344 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
1345 {
1346 int i;
1347
1348 for( i = 0; i < msg->i_name; i++ )
1349 {
1350 if( !strcasecmp( msg->name[i], name ))
1351 {
1352 return msg->value[i];
1353 }
1354 }
1355 return NULL;
1356 }
1357
1358 void httpd_MsgAdd( httpd_message_t *msg, const char *name, const char *psz_value, ... )
1359 {
1360 va_list args;
1361 char *value = NULL;
1362
1363 va_start( args, psz_value );
1364 if( us_vasprintf( &value, psz_value, args ) == -1 )
1365 value = NULL;
1366 va_end( args );
1367
1368 if( value == NULL )
1369 return;
1370
1371 name = strdup( name );
1372 if( name == NULL )
1373 {
1374 free( value );
1375 return;
1376 }
1377
1378 TAB_APPEND( msg->i_name, msg->name, (char*)name );
1379 TAB_APPEND( msg->i_value, msg->value, value );
1380 }
1381
1382 static void httpd_ClientInit( httpd_client_t *cl, mtime_t now )
1383 {
1384 cl->i_state = HTTPD_CLIENT_RECEIVING;
1385 cl->i_activity_date = now;
1386 cl->i_activity_timeout = INT64_C(10000000);
1387 cl->i_buffer_size = HTTPD_CL_BUFSIZE;
1388 cl->i_buffer = 0;
1389 cl->p_buffer = xmalloc( cl->i_buffer_size );
1390 cl->b_stream_mode = false;
1391
1392 httpd_MsgInit( &cl->query );
1393 httpd_MsgInit( &cl->answer );
1394 }
1395
1396 char* httpd_ClientIP( const httpd_client_t *cl, char *ip, int *port )
1397 {
1398 return net_GetPeerAddress( cl->fd, ip, port ) ? NULL : ip;
1399 }
1400
1401 char* httpd_ServerIP( const httpd_client_t *cl, char *ip, int *port )
1402 {
1403 return net_GetSockAddress( cl->fd, ip, port ) ? NULL : ip;
1404 }
1405
1406 static void httpd_ClientClean( httpd_client_t *cl )
1407 {
1408 if( cl->fd >= 0 )
1409 {
1410 if( cl->p_tls != NULL )
1411 vlc_tls_ServerSessionDelete( cl->p_tls );
1412 net_Close( cl->fd );
1413 cl->fd = -1;
1414 }
1415
1416 httpd_MsgClean( &cl->answer );
1417 httpd_MsgClean( &cl->query );
1418
1419 free( cl->p_buffer );
1420 cl->p_buffer = NULL;
1421 }
1422
1423 static httpd_client_t *httpd_ClientNew( int fd, vlc_tls_t *p_tls, mtime_t now )
1424 {
1425 httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1426
1427 if( !cl ) return NULL;
1428
1429 cl->i_ref = 0;
1430 cl->fd = fd;
1431 cl->url = NULL;
1432 cl->p_tls = p_tls;
1433
1434 httpd_ClientInit( cl, now );
1435
1436 return cl;
1437 }
1438
1439 static
1440 ssize_t httpd_NetRecv (httpd_client_t *cl, uint8_t *p, size_t i_len)
1441 {
1442 vlc_tls_t *p_tls;
1443 ssize_t val;
1444
1445 p_tls = cl->p_tls;
1446 do
1447 val = p_tls ? tls_Recv (p_tls, p, i_len)
1448 : recv (cl->fd, p, i_len, 0);
1449 while (val == -1 && errno == EINTR);
1450 return val;
1451 }
1452
1453 static
1454 ssize_t httpd_NetSend (httpd_client_t *cl, const uint8_t *p, size_t i_len)
1455 {
1456 vlc_tls_t *p_tls;
1457 ssize_t val;
1458
1459 p_tls = cl->p_tls;
1460 do
1461 val = p_tls ? tls_Send( p_tls, p, i_len )
1462 : send (cl->fd, p, i_len, 0);
1463 while (val == -1 && errno == EINTR);
1464 return val;
1465 }
1466
1467
1468 static const struct
1469 {
1470 const char name[16];
1471 int i_type;
1472 int i_proto;
1473 }
1474 msg_type[] =
1475 {
1476 { "OPTIONS", HTTPD_MSG_OPTIONS, HTTPD_PROTO_RTSP },
1477 { "DESCRIBE", HTTPD_MSG_DESCRIBE, HTTPD_PROTO_RTSP },
1478 { "SETUP", HTTPD_MSG_SETUP, HTTPD_PROTO_RTSP },
1479 { "PLAY", HTTPD_MSG_PLAY, HTTPD_PROTO_RTSP },
1480 { "PAUSE", HTTPD_MSG_PAUSE, HTTPD_PROTO_RTSP },
1481 { "GET_PARAMETER", HTTPD_MSG_GETPARAMETER, HTTPD_PROTO_RTSP },
1482 { "TEARDOWN", HTTPD_MSG_TEARDOWN, HTTPD_PROTO_RTSP },
1483 { "GET", HTTPD_MSG_GET, HTTPD_PROTO_HTTP },
1484 { "HEAD", HTTPD_MSG_HEAD, HTTPD_PROTO_HTTP },
1485 { "POST", HTTPD_MSG_POST, HTTPD_PROTO_HTTP },
1486 { "", HTTPD_MSG_NONE, HTTPD_PROTO_NONE }
1487 };
1488
1489
1490 static void httpd_ClientRecv( httpd_client_t *cl )
1491 {
1492 int i_len;
1493
1494 /* ignore leading whites */
1495 if( ( cl->query.i_proto == HTTPD_PROTO_NONE ) &&
1496 ( cl->i_buffer == 0 ) )
1497 {
1498 unsigned char c;
1499
1500 i_len = httpd_NetRecv( cl, &c, 1 );
1501
1502 if( ( i_len > 0 ) && ( strchr( "\r\n\t ", c ) == NULL ) )
1503 {
1504 cl->p_buffer[0] = c;
1505 cl->i_buffer++;
1506 }
1507 }
1508 else
1509 if( cl->query.i_proto == HTTPD_PROTO_NONE )
1510 {
1511 /* enough to see if it's Interleaved RTP over RTSP or RTSP/HTTP */
1512 i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
1513 7 - cl->i_buffer );
1514 if( i_len > 0 )
1515 {
1516 cl->i_buffer += i_len;
1517 }
1518
1519 /* The smallest legal request is 7 bytes ("GET /\r\n"),
1520 * this is the maximum we can ask at this point. */
1521 if( cl->i_buffer >= 7 )
1522 {
1523 if( !memcmp( cl->p_buffer, "HTTP/1.", 7 ) )
1524 {
1525 cl->query.i_proto = HTTPD_PROTO_HTTP;
1526 cl->query.i_type = HTTPD_MSG_ANSWER;
1527 }
1528 else if( !memcmp( cl->p_buffer, "RTSP/1.", 7 ) )
1529 {
1530 cl->query.i_proto = HTTPD_PROTO_RTSP;
1531 cl->query.i_type = HTTPD_MSG_ANSWER;
1532 }
1533 else
1534 {
1535 /* We need the full request line to determine the protocol. */
1536 cl->query.i_proto = HTTPD_PROTO_HTTP0;
1537 cl->query.i_type = HTTPD_MSG_NONE;
1538 }
1539 }
1540 }
1541 else if( cl->query.i_body > 0 )
1542 {
1543 /* we are reading the body of a request or a channel */
1544 i_len = httpd_NetRecv( cl, &cl->query.p_body[cl->i_buffer],
1545 cl->query.i_body - cl->i_buffer );
1546 if( i_len > 0 )
1547 {
1548 cl->i_buffer += i_len;
1549 }
1550 if( cl->i_buffer >= cl->query.i_body )
1551 {
1552 cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1553 }
1554 }
1555 else
1556 {
1557 /* we are reading a header -> char by char */
1558 for( ;; )
1559 {
1560 if( cl->i_buffer == cl->i_buffer_size )
1561 {
1562 uint8_t *newbuf = realloc( cl->p_buffer, cl->i_buffer_size + 1024 );
1563 if( newbuf == NULL )
1564 {
1565 i_len = 0;
1566 break;
1567 }
1568
1569 cl->p_buffer = newbuf;
1570 cl->i_buffer_size += 1024;
1571 }
1572
1573 i_len = httpd_NetRecv (cl, &cl->p_buffer[cl->i_buffer], 1 );
1574 if( i_len <= 0 )
1575 {
1576 break;
1577 }
1578 cl->i_buffer++;
1579
1580 if( ( cl->query.i_proto == HTTPD_PROTO_HTTP0 )
1581 && ( cl->p_buffer[cl->i_buffer - 1] == '\n' ) )
1582 {
1583 /* Request line is now complete */
1584 const char *p = memchr( cl->p_buffer, ' ', cl->i_buffer );
1585 size_t len;
1586
1587 assert( cl->query.i_type == HTTPD_MSG_NONE );
1588
1589 if( p == NULL ) /* no URI: evil guy */
1590 {
1591 i_len = 0; /* drop connection */
1592 break;
1593 }
1594
1595 do
1596 p++; /* skips extra spaces */
1597 while( *p == ' ' );
1598
1599 p = memchr( p, ' ', ((char *)cl->p_buffer) + cl->i_buffer - p );
1600 if( p == NULL ) /* no explicit protocol: HTTP/0.9 */
1601 {
1602 i_len = 0; /* not supported currently -> drop */
1603 break;
1604 }
1605
1606 do
1607 p++; /* skips extra spaces ever again */
1608 while( *p == ' ' );
1609
1610 len = ((char *)cl->p_buffer) + cl->i_buffer - p;
1611 if( len < 7 ) /* foreign protocol */
1612 i_len = 0; /* I don't understand -> drop */
1613 else
1614 if( memcmp( p, "HTTP/1.", 7 ) == 0 )
1615 {
1616 cl->query.i_proto = HTTPD_PROTO_HTTP;
1617 cl->query.i_version = atoi( p + 7 );
1618 }
1619 else
1620 if( memcmp( p, "RTSP/1.", 7 ) == 0 )
1621 {
1622 cl->query.i_proto = HTTPD_PROTO_RTSP;
1623 cl->query.i_version = atoi( p + 7 );
1624 }
1625 else
1626 if( memcmp( p, "HTTP/", 5 ) == 0 )
1627 {
1628 const uint8_t sorry[] =
1629 "HTTP/1.1 505 Unknown HTTP version\r\n\r\n";
1630 httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1631 i_len = 0; /* drop */
1632 }
1633 else
1634 if( memcmp( p, "RTSP/", 5 ) == 0 )
1635 {
1636 const uint8_t sorry[] =
1637 "RTSP/1.0 505 Unknown RTSP version\r\n\r\n";
1638 httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1639 i_len = 0; /* drop */
1640 }
1641 else /* yet another foreign protocol */
1642 i_len = 0;
1643
1644 if( i_len == 0 )
1645 break;
1646 }
1647
1648 if( ( cl->i_buffer >= 2 && !memcmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1649 ( cl->i_buffer >= 4 && !memcmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1650 {
1651 char *p;
1652
1653 /* we have finished the header so parse it and set i_body */
1654 cl->p_buffer[cl->i_buffer] = '\0';
1655
1656 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1657 {
1658 /* FIXME:
1659 * assume strlen( "HTTP/1.x" ) = 8
1660 */
1661 cl->query.i_status =
1662 strtol( (char *)&cl->p_buffer[8],
1663 &p, 0 );
1664 while( *p == ' ' )
1665 p++;
1666 }
1667 else
1668 {
1669 unsigned i;
1670
1671 p = NULL;
1672 cl->query.i_type = HTTPD_MSG_NONE;
1673
1674 /*fprintf( stderr, "received new request=%s\n", cl->p_buffer);*/
1675
1676 for( i = 0; msg_type[i].name[0]; i++ )
1677 {
1678 if( !strncmp( (char *)cl->p_buffer, msg_type[i].name,
1679 strlen( msg_type[i].name ) ) )
1680 {
1681 p = (char *)&cl->p_buffer[strlen(msg_type[i].name) + 1 ];
1682 cl->query.i_type = msg_type[i].i_type;
1683 if( cl->query.i_proto != msg_type[i].i_proto )
1684 {
1685 p = NULL;
1686 cl->query.i_proto = HTTPD_PROTO_NONE;
1687 cl->query.i_type = HTTPD_MSG_NONE;
1688 }
1689 break;
1690 }
1691 }
1692 if( p == NULL )
1693 {
1694 if( strstr( (char *)cl->p_buffer, "HTTP/1." ) )
1695 {
1696 cl->query.i_proto = HTTPD_PROTO_HTTP;
1697 }
1698 else if( strstr( (char *)cl->p_buffer, "RTSP/1." ) )
1699 {
1700 cl->query.i_proto = HTTPD_PROTO_RTSP;
1701 }
1702 }
1703 else
1704 {
1705 char *p2;
1706 char *p3;
1707
1708 while( *p == ' ' )
1709 {
1710 p++;
1711 }
1712 p2 = strchr( p, ' ' );
1713 if( p2 )
1714 {
1715 *p2++ = '\0';
1716 }
1717 if( !strncasecmp( p, ( cl->query.i_proto
1718 == HTTPD_PROTO_HTTP ) ? "http:" : "rtsp:", 5 ) )
1719 { /* Skip hier-part of URL (if present) */
1720 p += 5;
1721 if( !strncmp( p, "//", 2 ) ) /* skip authority */
1722 { /* see RFC3986 §3.2 */
1723 p += 2;
1724 p += strcspn( p, "/?#" );
1725 }
1726 }
1727 else
1728 if( !strncasecmp( p, ( cl->query.i_proto
1729 == HTTPD_PROTO_HTTP ) ? "https:" : "rtsps:", 6 ) )
1730 { /* Skip hier-part of URL (if present) */
1731 p += 6;
1732 if( !strncmp( p, "//", 2 ) ) /* skip authority */
1733 { /* see RFC3986 §3.2 */
1734 p += 2;
1735 p += strcspn( p, "/?#" );
1736 }
1737 }
1738
1739 cl->query.psz_url = strdup( p );
1740 if( ( p3 = strchr( cl->query.psz_url, '?' ) ) )
1741 {
1742 *p3++ = '\0';
1743 cl->query.psz_args = (uint8_t *)strdup( p3 );
1744 }
1745 p = p2;
1746 }
1747 }
1748 if( p )
1749 {
1750 p = strchr( p, '\n' );
1751 }
1752 if( p )
1753 {
1754 while( *p == '\n' || *p == '\r' )
1755 {
1756 p++;
1757 }
1758 while( p && *p != '\0' )
1759 {
1760 char *line = p;
1761 char *eol = p = strchr( p, '\n' );
1762 char *colon;
1763
1764 while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1765 {
1766 *eol-- = '\0';
1767 }
1768
1769 if( ( colon = strchr( line, ':' ) ) )
1770 {
1771 char *name;
1772 char *value;
1773
1774 *colon++ = '\0';
1775 while( *colon == ' ' )
1776 {
1777 colon++;
1778 }
1779 name = strdup( line );
1780 value = strdup( colon );
1781
1782 TAB_APPEND( cl->query.i_name, cl->query.name, name );
1783 TAB_APPEND( cl->query.i_value,cl->query.value,value);
1784
1785 if( !strcasecmp( name, "Content-Length" ) )
1786 {
1787 cl->query.i_body = atol( value );
1788 }
1789 }
1790
1791 if( p )
1792 {
1793 p++;
1794 while( *p == '\n' || *p == '\r' )
1795 {
1796 p++;
1797 }
1798 }
1799 }
1800 }
1801 if( cl->query.i_body > 0 )
1802 {
1803 /* TODO Mhh, handle the case where the client only
1804 * sends a request and closes the connection to
1805 * mark the end of the body (probably only RTSP) */
1806 cl->query.p_body = malloc( cl->query.i_body );
1807 cl->i_buffer = 0;
1808 if ( cl->query.p_body == NULL )
1809 {
1810 switch (cl->query.i_proto)
1811 {
1812 case HTTPD_PROTO_HTTP:
1813 {
1814 const uint8_t sorry[] =
1815 "HTTP/1.1 413 Request Entity Too Large\r\n\r\n";
1816 httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1817 break;
1818 }
1819 case HTTPD_PROTO_RTSP:
1820 {
1821 const uint8_t sorry[] =
1822 "RTSP/1.0 413 Request Entity Too Large\r\n\r\n";
1823 httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1824 break;
1825 }
1826 default:
1827 assert( 0 );
1828 }
1829 i_len = 0; /* drop */
1830 }
1831 break;
1832 }
1833 else
1834 {
1835 cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1836 }
1837 }
1838 }
1839 }
1840
1841 /* check if the client is to be set to dead */
1842 #if defined( WIN32 ) || defined( UNDER_CE )
1843 if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1844 #else
1845 if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1846 #endif
1847 {
1848 if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1849 {
1850 /* connection closed -> end of data */
1851 if( cl->query.i_body > 0 )
1852 {
1853 cl->query.i_body = cl->i_buffer;
1854 }
1855 cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1856 }
1857 else
1858 {
1859 cl->i_state = HTTPD_CLIENT_DEAD;
1860 }
1861 }
1862
1863 /* XXX: for QT I have to disable timeout. Try to find why */
1864 if( cl->query.i_proto == HTTPD_PROTO_RTSP )
1865 cl->i_activity_timeout = 0;
1866
1867 #if 0 /* Debugging only */
1868 if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1869 {
1870 int i;
1871
1872 fprintf( stderr, "received new request\n" );
1873 fprintf( stderr, " - proto=%s\n",
1874 cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1875 fprintf( stderr, " - version=%d\n", cl->query.i_version );
1876 fprintf( stderr, " - msg=%d\n", cl->query.i_type );
1877 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1878 {
1879 fprintf( stderr, " - answer=%d '%s'\n", cl->query.i_status,
1880 cl->query.psz_status );
1881 }
1882 else if( cl->query.i_type != HTTPD_MSG_NONE )
1883 {
1884 fprintf( stderr, " - url=%s\n", cl->query.psz_url );
1885 }
1886 for( i = 0; i < cl->query.i_name; i++ )
1887 {
1888 fprintf( stderr, " - option name='%s' value='%s'\n",
1889 cl->query.name[i], cl->query.value[i] );
1890 }
1891 }
1892 #endif
1893 }
1894
1895 static void httpd_ClientSend( httpd_client_t *cl )
1896 {
1897 int i;
1898 int i_len;
1899
1900 if( cl->i_buffer < 0 )
1901 {
1902 /* We need to create the header */
1903 int i_size = 0;
1904 char *p;
1905 const char *psz_status = httpd_ReasonFromCode( cl->answer.i_status );
1906
1907 i_size = strlen( "HTTP/1.") + 10 + 10 + strlen( psz_status ) + 5;
1908 for( i = 0; i < cl->answer.i_name; i++ )
1909 {
1910 i_size += strlen( cl->answer.name[i] ) + 2 +
1911 strlen( cl->answer.value[i] ) + 2;
1912 }
1913
1914 if( cl->i_buffer_size < i_size )
1915 {
1916 cl->i_buffer_size = i_size;
1917 free( cl->p_buffer );
1918 cl->p_buffer = xmalloc( i_size );
1919 }
1920 p = (char *)cl->p_buffer;
1921
1922 p += sprintf( p, "%s.%u %d %s\r\n",
1923 cl->answer.i_proto == HTTPD_PROTO_HTTP ? "HTTP/1" : "RTSP/1",
1924 cl->answer.i_version,
1925 cl->answer.i_status, psz_status );
1926 for( i = 0; i < cl->answer.i_name; i++ )
1927 {
1928 p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1929 cl->answer.value[i] );
1930 }
1931 p += sprintf( p, "\r\n" );
1932
1933 cl->i_buffer = 0;
1934 cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1935
1936 /*fprintf( stderr, "sending answer\n" );
1937 fprintf( stderr, "%s", cl->p_buffer );*/
1938 }
1939
1940 i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
1941 cl->i_buffer_size - cl->i_buffer );
1942 if( i_len >= 0 )
1943 {
1944 cl->i_buffer += i_len;
1945
1946 if( cl->i_buffer >= cl->i_buffer_size )
1947 {
1948 if( cl->answer.i_body == 0 && cl->answer.i_body_offset > 0 )
1949 {
1950 /* catch more body data */
1951 int i_msg = cl->query.i_type;
1952 int64_t i_offset = cl->answer.i_body_offset;
1953
1954 httpd_MsgClean( &cl->answer );
1955 cl->answer.i_body_offset = i_offset;
1956
1957 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1958 &cl->answer, &cl->query );
1959 }
1960
1961 if( cl->answer.i_body > 0 )
1962 {
1963 /* send the body data */
1964 free( cl->p_buffer );
1965 cl->p_buffer = cl->answer.p_body;
1966 cl->i_buffer_size = cl->answer.i_body;
1967 cl->i_buffer = 0;
1968
1969 cl->answer.i_body = 0;
1970 cl->answer.p_body = NULL;
1971 }
1972 else
1973 {
1974 /* send finished */
1975 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1976 }
1977 }
1978 }
1979 else
1980 {
1981 #if defined( WIN32 ) || defined( UNDER_CE )
1982 if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1983 #else
1984 if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1985 #endif
1986 {
1987 /* error */
1988 cl->i_state = HTTPD_CLIENT_DEAD;
1989 }
1990 }
1991 }
1992
1993 static void httpd_ClientTlsHsIn( httpd_client_t *cl )
1994 {
1995 switch( vlc_tls_ServerSessionHandshake( cl->p_tls ) )
1996 {
1997 case 0:
1998 cl->i_state = HTTPD_CLIENT_RECEIVING;
1999 break;
2000
2001 case -1:
2002 cl->i_state = HTTPD_CLIENT_DEAD;
2003 cl->p_tls = NULL;
2004 break;
2005
2006 case 2:
2007 cl->i_state = HTTPD_CLIENT_TLS_HS_OUT;
2008 }
2009 }
2010
2011 static void httpd_ClientTlsHsOut( httpd_client_t *cl )
2012 {
2013 switch( vlc_tls_ServerSessionHandshake( cl->p_tls ) )
2014 {
2015 case 0:
2016 cl->i_state = HTTPD_CLIENT_RECEIVING;
2017 break;
2018
2019 case -1:
2020 cl->i_state = HTTPD_CLIENT_DEAD;
2021 cl->p_tls = NULL;
2022 break;
2023
2024 case 1:
2025 cl->i_state = HTTPD_CLIENT_TLS_HS_IN;
2026 break;
2027 }
2028 }
2029
2030 static void* httpd_HostThread( void *data )
2031 {
2032 httpd_host_t *host = data;
2033 int evfd = vlc_object_waitpipe( VLC_OBJECT( host ) );
2034
2035 for( ;; )
2036 {
2037 struct pollfd ufd[host->nfd + host->i_client + 1];
2038 unsigned nfd;
2039 for( nfd = 0; nfd < host->nfd; nfd++ )
2040 {
2041 ufd[nfd].fd = host->fds[nfd];
2042 ufd[nfd].events = POLLIN;
2043 ufd[nfd].revents = 0;
2044 }
2045
2046 /* add all socket that should be read/write and close dead connection */
2047 vlc_mutex_lock( &host->lock );
2048 while( host->i_url <= 0 && host->i_ref > 0 )
2049 vlc_cond_wait( &host->wait, &host->lock );
2050
2051 mtime_t now = mdate();
2052 bool b_low_delay = false;
2053
2054 for(int i_client = 0; i_client < host->i_client; i_client++ )
2055 {
2056 httpd_client_t *cl = host->client[i_client];
2057 if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
2058 ( cl->i_state == HTTPD_CLIENT_DEAD ||
2059 ( cl->i_activity_timeout > 0 &&
2060 cl->i_activity_date+cl->i_activity_timeout < now) ) ) )
2061 {
2062 httpd_ClientClean( cl );
2063 TAB_REMOVE( host->i_client, host->client, cl );
2064 free( cl );
2065 i_client--;
2066 continue;
2067 }
2068
2069 struct pollfd *pufd = ufd + nfd;
2070 assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
2071
2072 pufd->fd = cl->fd;
2073 pufd->events = pufd->revents = 0;
2074
2075 if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
2076 || ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
2077 {
2078 pufd->events = POLLIN;
2079 }
2080 else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
2081 || ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
2082 {
2083 pufd->events = POLLOUT;
2084 }
2085 else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
2086 {
2087 httpd_message_t *answer = &cl->answer;
2088 httpd_message_t *query = &cl->query;
2089 int i_msg = query->i_type;
2090
2091 httpd_MsgInit( answer );
2092
2093 /* Handle what we received */
2094 if( i_msg == HTTPD_MSG_ANSWER )
2095 {
2096 cl->url = NULL;
2097 cl->i_state = HTTPD_CLIENT_DEAD;
2098 }
2099 else if( i_msg == HTTPD_MSG_OPTIONS )
2100 {
2101
2102 answer->i_type = HTTPD_MSG_ANSWER;
2103 answer->i_proto = query->i_proto;
2104 answer->i_status = 200;
2105 answer->i_body = 0;
2106 answer->p_body = NULL;
2107
2108 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
2109 httpd_MsgAdd( answer, "Content-Length", "0" );
2110
2111 switch( query->i_proto )
2112 {
2113 case HTTPD_PROTO_HTTP:
2114 answer->i_version = 1;
2115 httpd_MsgAdd( answer, "Allow",
2116 "GET,HEAD,POST,OPTIONS" );
2117 break;
2118
2119 case HTTPD_PROTO_RTSP:
2120 {
2121 const char *p;
2122 answer->i_version = 0;
2123
2124 p = httpd_MsgGet( query, "Cseq" );
2125 if( p != NULL )
2126 httpd_MsgAdd( answer, "Cseq", "%s", p );
2127 p = httpd_MsgGet( query, "Timestamp" );
2128 if( p != NULL )
2129 httpd_MsgAdd( answer, "Timestamp", "%s", p );
2130
2131 p = httpd_MsgGet( query, "Require" );
2132 if( p != NULL )
2133 {
2134 answer->i_status = 551;
2135 httpd_MsgAdd( query, "Unsupported", "%s", p );
2136 }
2137
2138 httpd_MsgAdd( answer, "Public", "DESCRIBE,SETUP,"
2139 "TEARDOWN,PLAY,PAUSE,GET_PARAMETER" );
2140 break;
2141 }
2142 }
2143
2144 cl->i_buffer = -1; /* Force the creation of the answer in
2145 * httpd_ClientSend */
2146 cl->i_state = HTTPD_CLIENT_SENDING;
2147 }
2148 else if( i_msg == HTTPD_MSG_NONE )
2149 {
2150 if( query->i_proto == HTTPD_PROTO_NONE )
2151 {
2152 cl->url = NULL;
2153 cl->i_state = HTTPD_CLIENT_DEAD;
2154 }
2155 else
2156 {
2157 char *p;
2158
2159 /* unimplemented */
2160 answer->i_proto = query->i_proto ;
2161 answer->i_type = HTTPD_MSG_ANSWER;
2162 answer->i_version= 0;
2163 answer->i_status = 501;
2164
2165 answer->i_body = httpd_HtmlError (&p, 501, NULL);
2166 answer->p_body = (uint8_t *)p;
2167 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2168
2169 cl->i_buffer = -1; /* Force the creation of the answer in httpd_ClientSend */
2170 cl->i_state = HTTPD_CLIENT_SENDING;
2171 }
2172 }
2173 else
2174 {
2175 bool b_auth_failed = false;
2176 bool b_hosts_failed = false;
2177
2178 /* Search the url and trigger callbacks */
2179 for(int i = 0; i < host->i_url; i++ )
2180 {
2181 httpd_url_t *url = host->url[i];
2182
2183 if( !strcmp( url->psz_url, query->psz_url ) )
2184 {
2185 if( url->catch[i_msg].cb )
2186 {
2187 if( answer && ( url->p_acl != NULL ) )
2188 {
2189 char ip[NI_MAXNUMERICHOST];
2190
2191 if( ( httpd_ClientIP( cl, ip, NULL ) == NULL )
2192 || ACL_Check( url->p_acl, ip ) )
2193 {
2194 b_hosts_failed = true;
2195 break;
2196 }
2197 }
2198
2199 if( answer && ( *url->psz_user || *url->psz_password ) )
2200 {
2201 /* create the headers */
2202 const char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
2203 char *user = NULL, *pass = NULL;
2204
2205 if( b64 != NULL
2206 && !strncasecmp( b64, "BASIC", 5 ) )
2207 {
2208 b64 += 5;
2209 while( *b64 == ' ' )
2210 b64++;
2211
2212 user = vlc_b64_decode( b64 );
2213 if (user != NULL)
2214 {
2215 pass = strchr (user, ':');
2216 if (pass != NULL)
2217 *pass++ = '\0';
2218 }
2219 }
2220
2221 if ((user == NULL) || (pass == NULL)
2222 || strcmp (user, url->psz_user)
2223 || strcmp (pass, url->psz_password))
2224 {
2225 httpd_MsgAdd( answer,
2226 "WWW-Authenticate",
2227 "Basic realm=\"VLC stream\"" );
2228 /* We fail for all url */
2229 b_auth_failed = true;
2230 free( user );
2231 break;
2232 }
2233
2234 free( user );
2235 }
2236
2237 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
2238 {
2239 if( answer->i_proto == HTTPD_PROTO_NONE )
2240 {
2241 /* Raw answer from a CGI */
2242 cl->i_buffer = cl->i_buffer_size;
2243 }
2244 else
2245 cl->i_buffer = -1;
2246
2247 /* only one url can answer */
2248 answer = NULL;
2249 if( cl->url == NULL )
2250 {
2251 cl->url = url;
2252 }
2253 }
2254 }
2255 }
2256 }
2257
2258 if( answer )
2259 {
2260 char *p;
2261
2262 answer->i_proto = query->i_proto;
2263 answer->i_type = HTTPD_MSG_ANSWER;
2264 answer->i_version= 0;
2265
2266 if( b_hosts_failed )
2267 {
2268 answer->i_status = 403;
2269 }
2270 else if( b_auth_failed )
2271 {
2272 answer->i_status = 401;
2273 }
2274 else
2275 {
2276 /* no url registered */
2277 answer->i_status = 404;
2278 }
2279
2280 answer->i_body = httpd_HtmlError (&p,
2281 answer->i_status,
2282 query->psz_url);
2283 answer->p_body = (uint8_t *)p;
2284
2285 cl->i_buffer = -1; /* Force the creation of the answer in httpd_ClientSend */
2286 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2287 httpd_MsgAdd( answer, "Content-Type", "%s", "text/html" );
2288 }
2289
2290 cl->i_state = HTTPD_CLIENT_SENDING;
2291 }
2292 }
2293 else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2294 {
2295 if( !cl->b_stream_mode || cl->answer.i_body_offset == 0 )
2296 {
2297 const char *psz_connection = httpd_MsgGet( &cl->answer, "Connection" );
2298 const char *psz_query = httpd_MsgGet( &cl->query, "Connection" );
2299 bool b_connection = false;
2300 bool b_keepalive = false;
2301 bool b_query = false;
2302
2303 cl->url = NULL;
2304 if( psz_connection )
2305 {
2306 b_connection = ( strcasecmp( psz_connection, "Close" ) == 0 );
2307 b_keepalive = ( strcasecmp( psz_connection, "Keep-Alive" ) == 0 );
2308 }
2309
2310 if( psz_query )
2311 {
2312 b_query = ( strcasecmp( psz_query, "Close" ) == 0 );
2313 }
2314
2315 if( ( ( cl->query.i_proto == HTTPD_PROTO_HTTP ) &&
2316 ( ( cl->query.i_version == 0 && b_keepalive ) ||
2317 ( cl->query.i_version == 1 && !b_connection ) ) ) ||
2318 ( ( cl->query.i_proto == HTTPD_PROTO_RTSP ) &&
2319 !b_query && !b_connection ) )
2320 {
2321 httpd_MsgClean( &cl->query );
2322 httpd_MsgInit( &cl->query );
2323
2324 cl->i_buffer = 0;
2325 cl->i_buffer_size = 1000;
2326 free( cl->p_buffer );
2327 cl->p_buffer = xmalloc( cl->i_buffer_size );
2328 cl->i_state = HTTPD_CLIENT_RECEIVING;
2329 }
2330 else
2331 {
2332 cl->i_state = HTTPD_CLIENT_DEAD;
2333 }
2334 httpd_MsgClean( &cl->answer );
2335 }
2336 else
2337 {
2338 int64_t i_offset = cl->answer.i_body_offset;
2339 httpd_MsgClean( &cl->answer );
2340
2341 cl->answer.i_body_offset = i_offset;
2342 free( cl->p_buffer );
2343 cl->p_buffer = NULL;
2344 cl->i_buffer = 0;
2345 cl->i_buffer_size = 0;
2346
2347 cl->i_state = HTTPD_CLIENT_WAITING;
2348 }
2349 }
2350 else if( cl->i_state == HTTPD_CLIENT_WAITING )
2351 {
2352 int64_t i_offset = cl->answer.i_body_offset;
2353 int i_msg = cl->query.i_type;
2354
2355 httpd_MsgInit( &cl->answer );
2356 cl->answer.i_body_offset = i_offset;
2357
2358 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2359 &cl->answer, &cl->query );
2360 if( cl->answer.i_type != HTTPD_MSG_NONE )
2361 {
2362 /* we have new data, so re-enter send mode */
2363 cl->i_buffer = 0;
2364 cl->p_buffer = cl->answer.p_body;
2365 cl->i_buffer_size = cl->answer.i_body;
2366 cl->answer.p_body = NULL;
2367 cl->answer.i_body = 0;
2368 cl->i_state = HTTPD_CLIENT_SENDING;
2369 }
2370 }
2371
2372 if (pufd->events != 0)
2373 nfd++;
2374 else
2375 b_low_delay = true;
2376 }
2377 vlc_mutex_unlock( &host->lock );
2378
2379 ufd[nfd].fd = evfd;
2380 ufd[nfd].events = POLLIN;
2381 ufd[nfd].revents = 0;
2382 nfd++;
2383
2384 /* we will wait 20ms (not too big) if HTTPD_CLIENT_WAITING */
2385 switch( poll( ufd, nfd, b_low_delay ? 20 : -1) )
2386 {
2387 case -1:
2388 if (errno != EINTR)
2389 {
2390 /* Kernel on low memory or a bug: pace */
2391 msg_Err( host, "polling error: %m" );
2392 msleep( 100000 );
2393 }
2394 case 0:
2395 continue;
2396 }
2397
2398 if( ufd[nfd - 1].revents )
2399 break;
2400
2401 /* Handle client sockets */
2402 vlc_mutex_lock( &host->lock );
2403 now = mdate();
2404 nfd = host->nfd;
2405 for( int i_client = 0; i_client < host->i_client; i_client++ )
2406 {
2407 httpd_client_t *cl = host->client[i_client];
2408 const struct pollfd *pufd = &ufd[nfd];
2409
2410 assert( pufd < &ufd[sizeof(ufd) / sizeof(ufd[0])] );
2411
2412 if( cl->fd != pufd->fd )
2413 continue; // we were not waiting for this client
2414 ++nfd;
2415 if( pufd->revents == 0 )
2416 continue; // no event received
2417
2418 cl->i_activity_date = now;
2419
2420 if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2421 {
2422 httpd_ClientRecv( cl );
2423 }
2424 else if( cl->i_state == HTTPD_CLIENT_SENDING )
2425 {
2426 httpd_ClientSend( cl );
2427 }
2428 else if( cl->i_state == HTTPD_CLIENT_TLS_HS_IN )
2429 {
2430 httpd_ClientTlsHsIn( cl );
2431 }
2432 else if( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT )
2433 {
2434 httpd_ClientTlsHsOut( cl );
2435 }
2436 }
2437 vlc_mutex_unlock( &host->lock );
2438
2439 /* Handle server sockets (accept new connections) */
2440 for( nfd = 0; nfd < host->nfd; nfd++ )
2441 {
2442 httpd_client_t *cl;
2443 int i_state = -1;
2444 int fd = ufd[nfd].fd;
2445
2446 assert (fd == host->fds[nfd]);
2447
2448 if( ufd[nfd].revents == 0 )
2449 continue;
2450
2451 /* */
2452 fd = vlc_accept (fd, NULL, NULL, true);
2453 if (fd == -1)
2454 continue;
2455 setsockopt (fd, SOL_SOCKET, SO_REUSEADDR,
2456 &(int){ 1 }, sizeof(int));
2457
2458 vlc_tls_t *p_tls;
2459
2460 if( host->p_tls != NULL )
2461 {
2462 p_tls = vlc_tls_ServerSessionCreate( host->p_tls, fd );
2463 switch( vlc_tls_ServerSessionHandshake( p_tls ) )
2464 {
2465 case -1:
2466 msg_Err( host, "Rejecting TLS connection" );
2467 /* p_tls is destroyed implicitly */
2468 net_Close( fd );
2469 fd = -1;
2470 p_tls = NULL;
2471 continue;
2472
2473 case 1: /* missing input - most likely */
2474 i_state = HTTPD_CLIENT_TLS_HS_IN;
2475 break;
2476
2477 case 2: /* missing output */
2478 i_state = HTTPD_CLIENT_TLS_HS_OUT;
2479 break;
2480 }
2481 }
2482 else
2483 p_tls = NULL;
2484
2485 cl = httpd_ClientNew( fd, p_tls, now );
2486 vlc_mutex_lock( &host->lock );
2487 TAB_APPEND( host->i_client, host->client, cl );
2488 vlc_mutex_unlock( &host->lock );
2489 if( i_state != -1 )
2490 cl->i_state = i_state; // override state for TLS
2491 }
2492
2493 }
2494
2495 return NULL;
2496 }
VLC Solaris and OpenSolaris fixes