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FIx annoying button behaviour (resize when tab changing).
[vlc/davidf-public.git] / src / network / httpd.c
blob86c7745209ac3208eba141dc6028faa489597cae
1 /*****************************************************************************
2 * httpd.c
3 *****************************************************************************
4 * Copyright (C) 2004-2006 the VideoLAN team
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
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 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 General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, 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 #ifdef ENABLE_HTTPD
34
35 #include <assert.h>
36
37 #include <vlc_network.h>
38 #include <vlc_tls.h>
39 #include <vlc_acl.h>
40 #include <vlc_strings.h>
41 #include "../libvlc.h"
42
43 #include <string.h>
44 #include <errno.h>
45
46 #ifdef HAVE_UNISTD_H
47 # include <unistd.h>
48 #endif
49
50 #ifdef HAVE_FCNTL_H
51 # include <fcntl.h>
52 #endif
53
54 #ifdef HAVE_POLL
55 # include <poll.h>
56 #endif
57
58 #if defined( UNDER_CE )
59 # include <winsock.h>
60 #elif defined( WIN32 )
61 # include <winsock2.h>
62 #else
63 # include <sys/socket.h>
64 #endif
65
66 #if defined( WIN32 )
67 /* We need HUGE buffer otherwise TCP throughput is very limited */
68 #define HTTPD_CL_BUFSIZE 1000000
69 #else
70 #define HTTPD_CL_BUFSIZE 10000
71 #endif
72
73 static void httpd_ClientClean( httpd_client_t *cl );
74
75 struct httpd_t
76 {
77 VLC_COMMON_MEMBERS
78
79 int i_host;
80 httpd_host_t **host;
81 };
82
83
84 /* each host run in his own thread */
85 struct httpd_host_t
86 {
87 VLC_COMMON_MEMBERS
88
89 httpd_t *httpd;
90
91 /* ref count */
92 int i_ref;
93
94 /* address/port and socket for listening at connections */
95 char *psz_hostname;
96 int i_port;
97 int *fds;
98 unsigned nfd;
99
100 vlc_mutex_t lock;
101
102 /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
103 * This will slow down the url research but make my live easier
104 * All url will have their cb trigger, but only the first one can answer
105 * */
106 int i_url;
107 httpd_url_t **url;
108
109 int i_client;
110 httpd_client_t **client;
111
112 /* TLS data */
113 tls_server_t *p_tls;
114 };
115
116
117 struct httpd_url_t
118 {
119 httpd_host_t *host;
120
121 vlc_mutex_t lock;
122
123 char *psz_url;
124 char *psz_user;
125 char *psz_password;
126 vlc_acl_t *p_acl;
127
128 struct
129 {
130 httpd_callback_t cb;
131 httpd_callback_sys_t *p_sys;
132 } catch[HTTPD_MSG_MAX];
133 };
134
135 /* status */
136 enum
137 {
138 HTTPD_CLIENT_RECEIVING,
139 HTTPD_CLIENT_RECEIVE_DONE,
140
141 HTTPD_CLIENT_SENDING,
142 HTTPD_CLIENT_SEND_DONE,
143
144 HTTPD_CLIENT_WAITING,
145
146 HTTPD_CLIENT_DEAD,
147
148 HTTPD_CLIENT_TLS_HS_IN,
149 HTTPD_CLIENT_TLS_HS_OUT
150 };
151
152 /* mode */
153 enum
154 {
155 HTTPD_CLIENT_FILE, /* default */
156 HTTPD_CLIENT_STREAM, /* regulary get data from cb */
157 HTTPD_CLIENT_BIDIR, /* check for reading and get data from cb */
158 };
159
160 struct httpd_client_t
161 {
162 httpd_url_t *url;
163
164 int i_ref;
165
166 int fd;
167
168 int i_mode;
169 int i_state;
170 int b_read_waiting; /* stop as soon as possible sending */
171
172 mtime_t i_activity_date;
173 mtime_t i_activity_timeout;
174
175 /* buffer for reading header */
176 int i_buffer_size;
177 int i_buffer;
178 uint8_t *p_buffer;
179
180 /* */
181 httpd_message_t query; /* client -> httpd */
182 httpd_message_t answer; /* httpd -> client */
183
184 /* TLS data */
185 tls_session_t *p_tls;
186 };
187
188
189 /*****************************************************************************
190 * Various functions
191 *****************************************************************************/
192 static struct
193 {
194 const char psz_ext[8];
195 const char *psz_mime;
196 } http_mime[] =
197 {
198 { ".htm", "text/html" },
199 { ".html", "text/html" },
200 { ".txt", "text/plain" },
201 { ".xml", "text/xml" },
202 { ".dtd", "text/dtd" },
203
204 { ".css", "text/css" },
205
206 /* image mime */
207 { ".gif", "image/gif" },
208 { ".jpe", "image/jpeg" },
209 { ".jpg", "image/jpeg" },
210 { ".jpeg", "image/jpeg" },
211 { ".png", "image/png" },
212 /* same as modules/mux/mpjpeg.c here: */
213 { ".mpjpeg","multipart/x-mixed-replace; boundary=7b3cc56e5f51db803f790dad720ed50a" },
214
215 /* media mime */
216 { ".avi", "video/avi" },
217 { ".asf", "video/x-ms-asf" },
218 { ".m1a", "audio/mpeg" },
219 { ".m2a", "audio/mpeg" },
220 { ".m1v", "video/mpeg" },
221 { ".m2v", "video/mpeg" },
222 { ".mp2", "audio/mpeg" },
223 { ".mp3", "audio/mpeg" },
224 { ".mpa", "audio/mpeg" },
225 { ".mpg", "video/mpeg" },
226 { ".mpeg", "video/mpeg" },
227 { ".mpe", "video/mpeg" },
228 { ".mov", "video/quicktime" },
229 { ".moov", "video/quicktime" },
230 { ".ogg", "application/ogg" },
231 { ".ogm", "application/ogg" },
232 { ".wav", "audio/wav" },
233 { ".wma", "audio/x-ms-wma" },
234 { ".wmv", "video/x-ms-wmv" },
235
236
237 /* end */
238 { "", "" }
239 };
240
241 static const char *httpd_MimeFromUrl( const char *psz_url )
242 {
243
244 char *psz_ext;
245
246 psz_ext = strrchr( psz_url, '.' );
247 if( psz_ext )
248 {
249 int i;
250
251 for( i = 0; http_mime[i].psz_ext[0] ; i++ )
252 {
253 if( !strcasecmp( http_mime[i].psz_ext, psz_ext ) )
254 {
255 return http_mime[i].psz_mime;
256 }
257 }
258 }
259 return "application/octet-stream";
260 }
261
262
263 typedef struct
264 {
265 unsigned i_code;
266 const char psz_reason[36];
267 } http_status_info;
268
269 static const http_status_info http_reason[] =
270 {
271 /*{ 100, "Continue" },
272 { 101, "Switching Protocols" },*/
273 { 200, "OK" },
274 /*{ 201, "Created" },
275 { 202, "Accepted" },
276 { 203, "Non-authoritative information" },
277 { 204, "No content" },
278 { 205, "Reset content" },
279 { 206, "Partial content" },
280 { 250, "Low on storage space" },
281 { 300, "Multiple choices" },*/
282 { 301, "Moved permanently" },
283 /*{ 302, "Moved temporarily" },
284 { 303, "See other" },
285 { 304, "Not modified" },
286 { 305, "Use proxy" },
287 { 307, "Temporary redirect" },
288 { 400, "Bad request" },*/
289 { 401, "Unauthorized" },
290 /*{ 402, "Payment Required" },*/
291 { 403, "Forbidden" },
292 { 404, "Not found" },
293 { 405, "Method not allowed" },
294 /*{ 406, "Not acceptable" },
295 { 407, "Proxy authentication required" },
296 { 408, "Request time-out" },
297 { 409, "Conflict" },
298 { 410, "Gone" },
299 { 411, "Length required" },
300 { 412, "Precondition failed" },
301 { 413, "Request entity too large" },
302 { 414, "Request-URI too large" },
303 { 415, "Unsupported media Type" },
304 { 416, "Requested range not satisfiable" },
305 { 417, "Expectation failed" },
306 { 451, "Parameter not understood" },
307 { 452, "Conference not found" },
308 { 453, "Not enough bandwidth" },*/
309 { 454, "Session not found" },
310 /*{ 455, "Method not valid in this State" },*/
311 { 456, "Header field not valid for resource" },
312 /*{ 457, "Invalid range" },
313 { 458, "Read-only parameter" },*/
314 { 459, "Aggregate operation not allowed" },
315 { 460, "Non-aggregate operation not allowed" },
316 { 461, "Unsupported transport" },
317 /*{ 462, "Destination unreachable" },*/
318 { 500, "Internal server error" },
319 { 501, "Not implemented" },
320 /*{ 502, "Bad gateway" },*/
321 { 503, "Service unavailable" },
322 /*{ 504, "Gateway time-out" },*/
323 { 505, "Protocol version not supported" },
324 { 551, "Option not supported" },
325 { 999, "" }
326 };
327
328 static const char psz_fallback_reason[5][16] =
329 { "Continue", "OK", "Found", "Client error", "Server error" };
330
331 static const char *httpd_ReasonFromCode( unsigned i_code )
332 {
333 const http_status_info *p;
334
335 assert( ( i_code >= 100 ) && ( i_code <= 599 ) );
336
337 for (p = http_reason; i_code > p->i_code; p++);
338
339 if( p->i_code == i_code )
340 return p->psz_reason;
341
342 return psz_fallback_reason[(i_code / 100) - 1];
343 }
344
345
346 static size_t httpd_HtmlError (char **body, int code, const char *url)
347 {
348 const char *errname = httpd_ReasonFromCode (code);
349 assert (errname != NULL);
350
351 int res = asprintf (body,
352 "<?xml version=\"1.0\" encoding=\"ascii\" ?>\n"
353 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\""
354 " \"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
355 "<html lang=\"en\">\n"
356 "<head>\n"
357 "<title>%s</title>\n"
358 "</head>\n"
359 "<body>\n"
360 "<h1>%d %s%s%s%s</h1>\n"
361 "<hr />\n"
362 "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
363 "</body>\n"
364 "</html>\n", errname, code, errname,
365 (url ? " (" : ""), (url ?: ""), (url ? ")" : ""));
366
367 if (res == -1)
368 {
369 *body = NULL;
370 return 0;
371 }
372
373 return (size_t)res;
374 }
375
376
377 /*****************************************************************************
378 * High Level Functions: httpd_file_t
379 *****************************************************************************/
380 struct httpd_file_t
381 {
382 httpd_url_t *url;
383
384 char *psz_url;
385 char *psz_mime;
386
387 httpd_file_callback_t pf_fill;
388 httpd_file_sys_t *p_sys;
389
390 };
391
392 static int
393 httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
394 httpd_message_t *answer, const httpd_message_t *query )
395 {
396 httpd_file_t *file = (httpd_file_t*)p_sys;
397 uint8_t **pp_body, *p_body;
398 const char *psz_connection;
399 int *pi_body, i_body;
400
401 if( answer == NULL || query == NULL )
402 {
403 return VLC_SUCCESS;
404 }
405 answer->i_proto = HTTPD_PROTO_HTTP;
406 answer->i_version= 1;
407 answer->i_type = HTTPD_MSG_ANSWER;
408
409 answer->i_status = 200;
410
411 httpd_MsgAdd( answer, "Content-type", "%s", file->psz_mime );
412 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
413
414 if( query->i_type != HTTPD_MSG_HEAD )
415 {
416 pp_body = &answer->p_body;
417 pi_body = &answer->i_body;
418 }
419 else
420 {
421 /* The file still needs to be executed. */
422 p_body = NULL;
423 i_body = 0;
424 pp_body = &p_body;
425 pi_body = &i_body;
426 }
427
428 if( query->i_type == HTTPD_MSG_POST )
429 {
430 /* msg_Warn not supported */
431 }
432
433 uint8_t *psz_args = query->psz_args;
434 file->pf_fill( file->p_sys, file, psz_args, pp_body, pi_body );
435
436 if( query->i_type == HTTPD_MSG_HEAD && p_body != NULL )
437 {
438 free( p_body );
439 }
440
441 /* We respect client request */
442 psz_connection = httpd_MsgGet( &cl->query, "Connection" );
443 if( psz_connection != NULL )
444 {
445 httpd_MsgAdd( answer, "Connection", "%s", psz_connection );
446 }
447
448 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
449
450 return VLC_SUCCESS;
451 }
452
453 httpd_file_t *httpd_FileNew( httpd_host_t *host,
454 const char *psz_url, const char *psz_mime,
455 const char *psz_user, const char *psz_password,
456 const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
457 httpd_file_sys_t *p_sys )
458 {
459 httpd_file_t *file = malloc( sizeof( httpd_file_t ) );
460
461 if( ( file->url = httpd_UrlNewUnique( host, psz_url, psz_user,
462 psz_password, p_acl )
463 ) == NULL )
464 {
465 free( file );
466 return NULL;
467 }
468
469 file->psz_url = strdup( psz_url );
470 if( psz_mime && *psz_mime )
471 {
472 file->psz_mime = strdup( psz_mime );
473 }
474 else
475 {
476 file->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
477 }
478
479 file->pf_fill = pf_fill;
480 file->p_sys = p_sys;
481
482 httpd_UrlCatch( file->url, HTTPD_MSG_HEAD, httpd_FileCallBack,
483 (httpd_callback_sys_t*)file );
484 httpd_UrlCatch( file->url, HTTPD_MSG_GET, httpd_FileCallBack,
485 (httpd_callback_sys_t*)file );
486 httpd_UrlCatch( file->url, HTTPD_MSG_POST, httpd_FileCallBack,
487 (httpd_callback_sys_t*)file );
488
489 return file;
490 }
491
492 httpd_file_sys_t *httpd_FileDelete( httpd_file_t *file )
493 {
494 httpd_file_sys_t *p_sys = file->p_sys;
495
496 httpd_UrlDelete( file->url );
497
498 free( file->psz_url );
499 free( file->psz_mime );
500
501 free( file );
502
503 return p_sys;
504 }
505
506 /*****************************************************************************
507 * High Level Functions: httpd_handler_t (for CGIs)
508 *****************************************************************************/
509 struct httpd_handler_t
510 {
511 httpd_url_t *url;
512
513 httpd_handler_callback_t pf_fill;
514 httpd_handler_sys_t *p_sys;
515
516 };
517
518 static int
519 httpd_HandlerCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
520 httpd_message_t *answer, const httpd_message_t *query )
521 {
522 httpd_handler_t *handler = (httpd_handler_t*)p_sys;
523 char psz_remote_addr[NI_MAXNUMERICHOST];
524
525 if( answer == NULL || query == NULL )
526 {
527 return VLC_SUCCESS;
528 }
529 answer->i_proto = HTTPD_PROTO_NONE;
530 answer->i_type = HTTPD_MSG_ANSWER;
531
532 /* We do it ourselves, thanks */
533 answer->i_status = 0;
534
535 if( httpd_ClientIP( cl, psz_remote_addr ) == NULL )
536 *psz_remote_addr = '\0';
537
538 uint8_t *psz_args = query->psz_args;
539 handler->pf_fill( handler->p_sys, handler, query->psz_url, psz_args,
540 query->i_type, query->p_body, query->i_body,
541 psz_remote_addr, NULL,
542 &answer->p_body, &answer->i_body );
543
544 if( query->i_type == HTTPD_MSG_HEAD )
545 {
546 char *p = (char *)answer->p_body;
547
548 /* Looks for end of header (i.e. one empty line) */
549 while ( (p = strchr( p, '\r' )) != NULL )
550 {
551 if( p[1] && p[1] == '\n' && p[2] && p[2] == '\r'
552 && p[3] && p[3] == '\n' )
553 {
554 break;
555 }
556 }
557
558 if( p != NULL )
559 {
560 p[4] = '\0';
561 answer->i_body = strlen((char*)answer->p_body) + 1;
562 answer->p_body = realloc( answer->p_body, answer->i_body );
563 }
564 }
565
566 if( strncmp( (char *)answer->p_body, "HTTP/1.", 7 ) )
567 {
568 int i_status, i_headers;
569 char *psz_headers, *psz_new;
570 const char *psz_status;
571
572 if( !strncmp( (char *)answer->p_body, "Status: ", 8 ) )
573 {
574 /* Apache-style */
575 i_status = strtol( (char *)&answer->p_body[8], &psz_headers, 0 );
576 if( *psz_headers ) psz_headers++;
577 if( *psz_headers ) psz_headers++;
578 i_headers = answer->i_body - (psz_headers - (char *)answer->p_body);
579 }
580 else
581 {
582 i_status = 200;
583 psz_headers = (char *)answer->p_body;
584 i_headers = answer->i_body;
585 }
586
587 psz_status = httpd_ReasonFromCode( i_status );
588 answer->i_body = sizeof("HTTP/1.0 xxx \r\n")
589 + strlen(psz_status) + i_headers - 1;
590 psz_new = (char *)malloc( answer->i_body + 1);
591 sprintf( psz_new, "HTTP/1.0 %03d %s\r\n", i_status, psz_status );
592 memcpy( &psz_new[strlen(psz_new)], psz_headers, i_headers );
593 free( answer->p_body );
594 answer->p_body = (uint8_t *)psz_new;
595 }
596
597 return VLC_SUCCESS;
598 }
599
600 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
601 const char *psz_user,
602 const char *psz_password,
603 const vlc_acl_t *p_acl,
604 httpd_handler_callback_t pf_fill,
605 httpd_handler_sys_t *p_sys )
606 {
607 httpd_handler_t *handler = malloc( sizeof( httpd_handler_t ) );
608
609 if( ( handler->url = httpd_UrlNewUnique( host, psz_url, psz_user,
610 psz_password, p_acl )
611 ) == NULL )
612 {
613 free( handler );
614 return NULL;
615 }
616
617 handler->pf_fill = pf_fill;
618 handler->p_sys = p_sys;
619
620 httpd_UrlCatch( handler->url, HTTPD_MSG_HEAD, httpd_HandlerCallBack,
621 (httpd_callback_sys_t*)handler );
622 httpd_UrlCatch( handler->url, HTTPD_MSG_GET, httpd_HandlerCallBack,
623 (httpd_callback_sys_t*)handler );
624 httpd_UrlCatch( handler->url, HTTPD_MSG_POST, httpd_HandlerCallBack,
625 (httpd_callback_sys_t*)handler );
626
627 return handler;
628 }
629
630 httpd_handler_sys_t *httpd_HandlerDelete( httpd_handler_t *handler )
631 {
632 httpd_handler_sys_t *p_sys = handler->p_sys;
633 httpd_UrlDelete( handler->url );
634 free( handler );
635 return p_sys;
636 }
637
638 /*****************************************************************************
639 * High Level Functions: httpd_redirect_t
640 *****************************************************************************/
641 struct httpd_redirect_t
642 {
643 httpd_url_t *url;
644 char *psz_dst;
645 };
646
647 static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
648 httpd_client_t *cl, httpd_message_t *answer,
649 const httpd_message_t *query )
650 {
651 httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
652 char *p_body;
653 (void)cl;
654
655 if( answer == NULL || query == NULL )
656 {
657 return VLC_SUCCESS;
658 }
659 answer->i_proto = HTTPD_PROTO_HTTP;
660 answer->i_version= 1;
661 answer->i_type = HTTPD_MSG_ANSWER;
662 answer->i_status = 301;
663
664 answer->i_body = httpd_HtmlError (&p_body, 301, rdir->psz_dst);
665 answer->p_body = (unsigned char *)p_body;
666
667 /* XXX check if it's ok or we need to set an absolute url */
668 httpd_MsgAdd( answer, "Location", "%s", rdir->psz_dst );
669
670 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
671
672 return VLC_SUCCESS;
673 }
674
675 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
676 const char *psz_url_src )
677 {
678 httpd_redirect_t *rdir = malloc( sizeof( httpd_redirect_t ) );
679
680 if( !( rdir->url = httpd_UrlNewUnique( host, psz_url_src, NULL, NULL, NULL ) ) )
681 {
682 free( rdir );
683 return NULL;
684 }
685 rdir->psz_dst = strdup( psz_url_dst );
686
687 /* Redirect apply for all HTTP request and RTSP DESCRIBE resquest */
688 httpd_UrlCatch( rdir->url, HTTPD_MSG_HEAD, httpd_RedirectCallBack,
689 (httpd_callback_sys_t*)rdir );
690 httpd_UrlCatch( rdir->url, HTTPD_MSG_GET, httpd_RedirectCallBack,
691 (httpd_callback_sys_t*)rdir );
692 httpd_UrlCatch( rdir->url, HTTPD_MSG_POST, httpd_RedirectCallBack,
693 (httpd_callback_sys_t*)rdir );
694 httpd_UrlCatch( rdir->url, HTTPD_MSG_DESCRIBE, httpd_RedirectCallBack,
695 (httpd_callback_sys_t*)rdir );
696
697 return rdir;
698 }
699 void httpd_RedirectDelete( httpd_redirect_t *rdir )
700 {
701 httpd_UrlDelete( rdir->url );
702 free( rdir->psz_dst );
703 free( rdir );
704 }
705
706 /*****************************************************************************
707 * High Level Funtions: httpd_stream_t
708 *****************************************************************************/
709 struct httpd_stream_t
710 {
711 vlc_mutex_t lock;
712 httpd_url_t *url;
713
714 char *psz_mime;
715
716 /* Header to send as first packet */
717 uint8_t *p_header;
718 int i_header;
719
720 /* circular buffer */
721 int i_buffer_size; /* buffer size, can't be reallocated smaller */
722 uint8_t *p_buffer; /* buffer */
723 int64_t i_buffer_pos; /* absolute position from begining */
724 int64_t i_buffer_last_pos; /* a new connection will start with that */
725 };
726
727 static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
728 httpd_client_t *cl, httpd_message_t *answer,
729 const httpd_message_t *query )
730 {
731 httpd_stream_t *stream = (httpd_stream_t*)p_sys;
732
733 if( answer == NULL || query == NULL || cl == NULL )
734 {
735 return VLC_SUCCESS;
736 }
737
738 if( answer->i_body_offset > 0 )
739 {
740 int64_t i_write;
741 int i_pos;
742
743 #if 0
744 fprintf( stderr, "httpd_StreamCallBack i_body_offset=%lld\n",
745 answer->i_body_offset );
746 #endif
747
748 if( answer->i_body_offset >= stream->i_buffer_pos )
749 {
750 /* fprintf( stderr, "httpd_StreamCallBack: no data\n" ); */
751 return VLC_EGENERIC; /* wait, no data available */
752 }
753 if( answer->i_body_offset + stream->i_buffer_size <
754 stream->i_buffer_pos )
755 {
756 /* this client isn't fast enough */
757 #if 0
758 fprintf( stderr, "fixing i_body_offset (old=%lld new=%lld)\n",
759 answer->i_body_offset, stream->i_buffer_last_pos );
760 #endif
761 answer->i_body_offset = stream->i_buffer_last_pos;
762 }
763
764 i_pos = answer->i_body_offset % stream->i_buffer_size;
765 i_write = stream->i_buffer_pos - answer->i_body_offset;
766 if( i_write > HTTPD_CL_BUFSIZE )
767 {
768 i_write = HTTPD_CL_BUFSIZE;
769 }
770 else if( i_write <= 0 )
771 {
772 return VLC_EGENERIC; /* wait, no data available */
773 }
774
775 /* Don't go past the end of the circular buffer */
776 i_write = __MIN( i_write, stream->i_buffer_size - i_pos );
777
778 /* using HTTPD_MSG_ANSWER -> data available */
779 answer->i_proto = HTTPD_PROTO_HTTP;
780 answer->i_version= 0;
781 answer->i_type = HTTPD_MSG_ANSWER;
782
783 answer->i_body = i_write;
784 answer->p_body = malloc( i_write );
785 memcpy( answer->p_body, &stream->p_buffer[i_pos], i_write );
786
787 answer->i_body_offset += i_write;
788
789 return VLC_SUCCESS;
790 }
791 else
792 {
793 answer->i_proto = HTTPD_PROTO_HTTP;
794 answer->i_version= 0;
795 answer->i_type = HTTPD_MSG_ANSWER;
796
797 answer->i_status = 200;
798
799 if( query->i_type != HTTPD_MSG_HEAD )
800 {
801 httpd_ClientModeStream( cl );
802 vlc_mutex_lock( &stream->lock );
803 /* Send the header */
804 if( stream->i_header > 0 )
805 {
806 answer->i_body = stream->i_header;
807 answer->p_body = malloc( stream->i_header );
808 memcpy( answer->p_body, stream->p_header, stream->i_header );
809 }
810 answer->i_body_offset = stream->i_buffer_last_pos;
811 vlc_mutex_unlock( &stream->lock );
812 }
813 else
814 {
815 httpd_MsgAdd( answer, "Content-Length", "%d", 0 );
816 answer->i_body_offset = 0;
817 }
818
819 if( !strcmp( stream->psz_mime, "video/x-ms-asf-stream" ) )
820 {
821 bool b_xplaystream = false;
822 int i;
823
824 httpd_MsgAdd( answer, "Content-type", "%s",
825 "application/octet-stream" );
826 httpd_MsgAdd( answer, "Server", "Cougar 4.1.0.3921" );
827 httpd_MsgAdd( answer, "Pragma", "no-cache" );
828 httpd_MsgAdd( answer, "Pragma", "client-id=%d", rand()&0x7fff );
829 httpd_MsgAdd( answer, "Pragma", "features=\"broadcast\"" );
830
831 /* Check if there is a xPlayStrm=1 */
832 for( i = 0; i < query->i_name; i++ )
833 {
834 if( !strcasecmp( query->name[i], "Pragma" ) &&
835 strstr( query->value[i], "xPlayStrm=1" ) )
836 {
837 b_xplaystream = true;
838 }
839 }
840
841 if( !b_xplaystream )
842 {
843 answer->i_body_offset = 0;
844 }
845 }
846 else
847 {
848 httpd_MsgAdd( answer, "Content-type", "%s", stream->psz_mime );
849 }
850 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
851 return VLC_SUCCESS;
852 }
853 }
854
855 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
856 const char *psz_url, const char *psz_mime,
857 const char *psz_user, const char *psz_password,
858 const vlc_acl_t *p_acl )
859 {
860 httpd_stream_t *stream = malloc( sizeof( httpd_stream_t ) );
861
862 if( ( stream->url = httpd_UrlNewUnique( host, psz_url, psz_user,
863 psz_password, p_acl )
864 ) == NULL )
865 {
866 free( stream );
867 return NULL;
868 }
869 vlc_mutex_init( &stream->lock );
870 if( psz_mime && *psz_mime )
871 {
872 stream->psz_mime = strdup( psz_mime );
873 }
874 else
875 {
876 stream->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
877 }
878 stream->i_header = 0;
879 stream->p_header = NULL;
880 stream->i_buffer_size = 5000000; /* 5 Mo per stream */
881 stream->p_buffer = malloc( stream->i_buffer_size );
882 /* We set to 1 to make life simpler
883 * (this way i_body_offset can never be 0) */
884 stream->i_buffer_pos = 1;
885 stream->i_buffer_last_pos = 1;
886
887 httpd_UrlCatch( stream->url, HTTPD_MSG_HEAD, httpd_StreamCallBack,
888 (httpd_callback_sys_t*)stream );
889 httpd_UrlCatch( stream->url, HTTPD_MSG_GET, httpd_StreamCallBack,
890 (httpd_callback_sys_t*)stream );
891 httpd_UrlCatch( stream->url, HTTPD_MSG_POST, httpd_StreamCallBack,
892 (httpd_callback_sys_t*)stream );
893
894 return stream;
895 }
896
897 int httpd_StreamHeader( httpd_stream_t *stream, uint8_t *p_data, int i_data )
898 {
899 vlc_mutex_lock( &stream->lock );
900 free( stream->p_header );
901 stream->p_header = NULL;
902
903 stream->i_header = i_data;
904 if( i_data > 0 )
905 {
906 stream->p_header = malloc( i_data );
907 memcpy( stream->p_header, p_data, i_data );
908 }
909 vlc_mutex_unlock( &stream->lock );
910
911 return VLC_SUCCESS;
912 }
913
914 int httpd_StreamSend( httpd_stream_t *stream, uint8_t *p_data, int i_data )
915 {
916 int i_count;
917 int i_pos;
918
919 if( i_data < 0 || p_data == NULL )
920 {
921 return VLC_SUCCESS;
922 }
923 vlc_mutex_lock( &stream->lock );
924
925 /* save this pointer (to be used by new connection) */
926 stream->i_buffer_last_pos = stream->i_buffer_pos;
927
928 i_pos = stream->i_buffer_pos % stream->i_buffer_size;
929 i_count = i_data;
930 while( i_count > 0)
931 {
932 int i_copy;
933
934 i_copy = __MIN( i_count, stream->i_buffer_size - i_pos );
935
936 /* Ok, we can't go past the end of our buffer */
937 memcpy( &stream->p_buffer[i_pos], p_data, i_copy );
938
939 i_pos = ( i_pos + i_copy ) % stream->i_buffer_size;
940 i_count -= i_copy;
941 p_data += i_copy;
942 }
943
944 stream->i_buffer_pos += i_data;
945
946 vlc_mutex_unlock( &stream->lock );
947 return VLC_SUCCESS;
948 }
949
950 void httpd_StreamDelete( httpd_stream_t *stream )
951 {
952 httpd_UrlDelete( stream->url );
953 vlc_mutex_destroy( &stream->lock );
954 free( stream->psz_mime );
955 free( stream->p_header );
956 free( stream->p_buffer );
957 free( stream );
958 }
959
960 /*****************************************************************************
961 * Low level
962 *****************************************************************************/
963 static void httpd_HostThread( httpd_host_t * );
964
965 /* create a new host */
966 httpd_host_t *httpd_HostNew( vlc_object_t *p_this, const char *psz_host,
967 int i_port )
968 {
969 return httpd_TLSHostNew( p_this, psz_host, i_port, NULL, NULL, NULL, NULL
970 );
971 }
972
973 static const char psz_object_type[] = "http server";
974
975 httpd_host_t *httpd_TLSHostNew( vlc_object_t *p_this, const char *psz_hostname,
976 int i_port,
977 const char *psz_cert, const char *psz_key,
978 const char *psz_ca, const char *psz_crl )
979 {
980 httpd_t *httpd;
981 httpd_host_t *host;
982 tls_server_t *p_tls;
983 char *psz_host;
984 vlc_value_t lockval, ptrval;
985 int i;
986
987 if( psz_hostname == NULL )
988 psz_hostname = "";
989
990 psz_host = strdup( psz_hostname );
991 if( psz_host == NULL )
992 return NULL;
993
994 /* to be sure to avoid multiple creation */
995 var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
996 var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
997 vlc_mutex_lock( lockval.p_address );
998 httpd = libvlc_priv (p_this->p_libvlc)->p_httpd;
999
1000 if( httpd == NULL )
1001 {
1002 msg_Info( p_this, "creating httpd" );
1003 httpd = (httpd_t *)vlc_custom_create( p_this, sizeof (*httpd),
1004 VLC_OBJECT_GENERIC,
1005 psz_object_type );
1006 if( httpd == NULL )
1007 {
1008 vlc_mutex_unlock( lockval.p_address );
1009 free( psz_host );
1010 return NULL;
1011 }
1012
1013 httpd->i_host = 0;
1014 httpd->host = NULL;
1015
1016 ptrval.p_address = httpd;
1017 libvlc_priv (p_this->p_libvlc)->p_httpd = httpd;
1018 vlc_object_yield( httpd );
1019 vlc_object_attach( httpd, p_this->p_libvlc );
1020 }
1021
1022 /* verify if it already exist */
1023 for( i = httpd->i_host - 1; i >= 0; i-- )
1024 {
1025 host = httpd->host[i];
1026
1027 /* cannot mix TLS and non-TLS hosts */
1028 if( ( ( httpd->host[i]->p_tls != NULL ) != ( psz_cert != NULL ) )
1029 || ( host->i_port != i_port )
1030 || strcmp( host->psz_hostname, psz_hostname ) )
1031 continue;
1032
1033 /* yep found */
1034 host->i_ref++;
1035
1036 vlc_mutex_unlock( lockval.p_address );
1037 return host;
1038 }
1039
1040 host = NULL;
1041
1042 /* determine TLS configuration */
1043 if ( psz_cert != NULL )
1044 {
1045 p_tls = tls_ServerCreate( p_this, psz_cert, psz_key );
1046 if ( p_tls == NULL )
1047 {
1048 msg_Err( p_this, "TLS initialization error" );
1049 goto error;
1050 }
1051
1052 if ( ( psz_ca != NULL) && tls_ServerAddCA( p_tls, psz_ca ) )
1053 {
1054 msg_Err( p_this, "TLS CA error" );
1055 goto error;
1056 }
1057
1058 if ( ( psz_crl != NULL) && tls_ServerAddCRL( p_tls, psz_crl ) )
1059 {
1060 msg_Err( p_this, "TLS CRL error" );
1061 goto error;
1062 }
1063 }
1064 else
1065 p_tls = NULL;
1066
1067 /* create the new host */
1068 host = (httpd_host_t *)vlc_custom_create( p_this, sizeof (*host),
1069 VLC_OBJECT_GENERIC,
1070 psz_object_type );
1071 if (host == NULL)
1072 goto error;
1073
1074 vlc_object_lock( host );
1075 if( vlc_object_waitpipe( VLC_OBJECT( host ) ) == -1 )
1076 {
1077 msg_Err( host, "signaling pipe error: %m" );
1078 vlc_object_unlock( host );
1079 goto error;
1080 }
1081 vlc_object_unlock( host );
1082
1083 host->httpd = httpd;
1084 vlc_mutex_init( &host->lock );
1085 host->i_ref = 1;
1086
1087 host->fds = net_ListenTCP( p_this, psz_host, i_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 host->i_port = i_port;
1096 host->psz_hostname = psz_host;
1097
1098 host->i_url = 0;
1099 host->url = NULL;
1100 host->i_client = 0;
1101 host->client = NULL;
1102
1103 host->p_tls = p_tls;
1104
1105 /* create the thread */
1106 if( vlc_thread_create( host, "httpd host thread", httpd_HostThread,
1107 VLC_THREAD_PRIORITY_LOW, false ) )
1108 {
1109 msg_Err( p_this, "cannot spawn http host thread" );
1110 goto error;
1111 }
1112
1113 /* now add it to httpd */
1114 TAB_APPEND( httpd->i_host, httpd->host, host );
1115 vlc_mutex_unlock( lockval.p_address );
1116
1117 return host;
1118
1119 error:
1120 free( psz_host );
1121 if( httpd->i_host <= 0 )
1122 {
1123 vlc_object_release( httpd );
1124 vlc_object_detach( httpd );
1125 vlc_object_release( httpd );
1126 }
1127 vlc_mutex_unlock( lockval.p_address );
1128
1129 if( host != NULL )
1130 {
1131 net_ListenClose( host->fds );
1132 vlc_mutex_destroy( &host->lock );
1133 vlc_object_release( host );
1134 }
1135
1136 if( p_tls != NULL )
1137 tls_ServerDelete( p_tls );
1138
1139 return NULL;
1140 }
1141
1142 /* delete a host */
1143 void httpd_HostDelete( httpd_host_t *host )
1144 {
1145 httpd_t *httpd = host->httpd;
1146 vlc_value_t lockval;
1147 int i;
1148
1149 var_Get( httpd->p_libvlc, "httpd_mutex", &lockval );
1150 vlc_mutex_lock( lockval.p_address );
1151
1152 host->i_ref--;
1153 if( host->i_ref > 0 )
1154 {
1155 /* still used */
1156 vlc_mutex_unlock( lockval.p_address );
1157 msg_Dbg( host, "httpd_HostDelete: host still used" );
1158 return;
1159 }
1160 TAB_REMOVE( httpd->i_host, httpd->host, host );
1161
1162 vlc_object_kill( host );
1163 vlc_thread_join( host );
1164
1165 msg_Dbg( host, "HTTP host removed" );
1166
1167 for( i = 0; i < host->i_url; i++ )
1168 {
1169 msg_Err( host, "url still registered: %s", host->url[i]->psz_url );
1170 }
1171 for( i = 0; i < host->i_client; i++ )
1172 {
1173 httpd_client_t *cl = host->client[i];
1174 msg_Warn( host, "client still connected" );
1175 httpd_ClientClean( cl );
1176 TAB_REMOVE( host->i_client, host->client, cl );
1177 free( cl );
1178 i--;
1179 /* TODO */
1180 }
1181
1182 if( host->p_tls != NULL)
1183 tls_ServerDelete( host->p_tls );
1184
1185 net_ListenClose( host->fds );
1186 free( host->psz_hostname );
1187
1188 vlc_mutex_destroy( &host->lock );
1189 vlc_object_release( host );
1190
1191 vlc_object_release( httpd );
1192 if( httpd->i_host <= 0 )
1193 {
1194 msg_Dbg( httpd, "no host left, stopping httpd" );
1195
1196 libvlc_priv (httpd->p_libvlc)->p_httpd = NULL;
1197 vlc_object_detach( httpd );
1198 vlc_object_release( httpd );
1199
1200 }
1201 vlc_mutex_unlock( lockval.p_address );
1202 }
1203
1204 /* register a new url */
1205 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, const char *psz_url,
1206 const char *psz_user, const char *psz_password,
1207 const vlc_acl_t *p_acl, bool b_check )
1208 {
1209 httpd_url_t *url;
1210 int i;
1211
1212 assert( psz_url != NULL );
1213
1214 vlc_mutex_lock( &host->lock );
1215 if( b_check )
1216 {
1217 for( i = 0; i < host->i_url; i++ )
1218 {
1219 if( !strcmp( psz_url, host->url[i]->psz_url ) )
1220 {
1221 msg_Warn( host->httpd,
1222 "cannot add '%s' (url already defined)", psz_url );
1223 vlc_mutex_unlock( &host->lock );
1224 return NULL;
1225 }
1226 }
1227 }
1228
1229 url = malloc( sizeof( httpd_url_t ) );
1230 url->host = host;
1231
1232 vlc_mutex_init( &url->lock );
1233 url->psz_url = strdup( psz_url );
1234 url->psz_user = strdup( psz_user ? psz_user : "" );
1235 url->psz_password = strdup( psz_password ? psz_password : "" );
1236 url->p_acl = ACL_Duplicate( host, p_acl );
1237 for( i = 0; i < HTTPD_MSG_MAX; i++ )
1238 {
1239 url->catch[i].cb = NULL;
1240 url->catch[i].p_sys = NULL;
1241 }
1242
1243 TAB_APPEND( host->i_url, host->url, url );
1244 vlc_mutex_unlock( &host->lock );
1245
1246 return url;
1247 }
1248
1249 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
1250 const char *psz_user, const char *psz_password,
1251 const vlc_acl_t *p_acl )
1252 {
1253 return httpd_UrlNewPrivate( host, psz_url, psz_user,
1254 psz_password, p_acl, false );
1255 }
1256
1257 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
1258 const char *psz_user, const char *psz_password,
1259 const vlc_acl_t *p_acl )
1260 {
1261 return httpd_UrlNewPrivate( host, psz_url, psz_user,
1262 psz_password, p_acl, true );
1263 }
1264
1265 /* register callback on a url */
1266 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1267 httpd_callback_sys_t *p_sys )
1268 {
1269 vlc_mutex_lock( &url->lock );
1270 url->catch[i_msg].cb = cb;
1271 url->catch[i_msg].p_sys= p_sys;
1272 vlc_mutex_unlock( &url->lock );
1273
1274 return VLC_SUCCESS;
1275 }
1276
1277 /* delete an url */
1278 void httpd_UrlDelete( httpd_url_t *url )
1279 {
1280 httpd_host_t *host = url->host;
1281 int i;
1282
1283 vlc_mutex_lock( &host->lock );
1284 TAB_REMOVE( host->i_url, host->url, url );
1285
1286 vlc_mutex_destroy( &url->lock );
1287 free( url->psz_url );
1288 free( url->psz_user );
1289 free( url->psz_password );
1290 ACL_Destroy( url->p_acl );
1291
1292 for( i = 0; i < host->i_client; i++ )
1293 {
1294 httpd_client_t *client = host->client[i];
1295
1296 if( client->url == url )
1297 {
1298 /* TODO complete it */
1299 msg_Warn( host, "force closing connections" );
1300 httpd_ClientClean( client );
1301 TAB_REMOVE( host->i_client, host->client, client );
1302 free( client );
1303 i--;
1304 }
1305 }
1306 free( url );
1307 vlc_mutex_unlock( &host->lock );
1308 }
1309
1310 void httpd_MsgInit( httpd_message_t *msg )
1311 {
1312 msg->cl = NULL;
1313 msg->i_type = HTTPD_MSG_NONE;
1314 msg->i_proto = HTTPD_PROTO_NONE;
1315 msg->i_version = -1; /* FIXME */
1316
1317 msg->i_status = 0;
1318
1319 msg->psz_url = NULL;
1320 msg->psz_args = NULL;
1321
1322 msg->i_channel = -1;
1323
1324 msg->i_name = 0;
1325 msg->name = NULL;
1326 msg->i_value = 0;
1327 msg->value = NULL;
1328
1329 msg->i_body_offset = 0;
1330 msg->i_body = 0;
1331 msg->p_body = NULL;
1332 }
1333
1334 void httpd_MsgClean( httpd_message_t *msg )
1335 {
1336 int i;
1337
1338 free( msg->psz_url );
1339 free( msg->psz_args );
1340 for( i = 0; i < msg->i_name; i++ )
1341 {
1342 free( msg->name[i] );
1343 free( msg->value[i] );
1344 }
1345 free( msg->name );
1346 free( msg->value );
1347 free( msg->p_body );
1348 httpd_MsgInit( msg );
1349 }
1350
1351 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
1352 {
1353 int i;
1354
1355 for( i = 0; i < msg->i_name; i++ )
1356 {
1357 if( !strcasecmp( msg->name[i], name ))
1358 {
1359 return msg->value[i];
1360 }
1361 }
1362 return NULL;
1363 }
1364
1365 void httpd_MsgAdd( httpd_message_t *msg, const char *name, const char *psz_value, ... )
1366 {
1367 va_list args;
1368 char *value = NULL;
1369
1370 va_start( args, psz_value );
1371 if( vasprintf( &value, psz_value, args ) == -1 )
1372 value = NULL;
1373 va_end( args );
1374
1375 if( value == NULL )
1376 return;
1377
1378 name = strdup( name );
1379 if( name == NULL )
1380 {
1381 free( value );
1382 return;
1383 }
1384
1385 TAB_APPEND( msg->i_name, msg->name, (char*)name );
1386 TAB_APPEND( msg->i_value, msg->value, value );
1387 }
1388
1389 static void httpd_ClientInit( httpd_client_t *cl, mtime_t now )
1390 {
1391 cl->i_state = HTTPD_CLIENT_RECEIVING;
1392 cl->i_activity_date = now;
1393 cl->i_activity_timeout = INT64_C(10000000);
1394 cl->i_buffer_size = HTTPD_CL_BUFSIZE;
1395 cl->i_buffer = 0;
1396 cl->p_buffer = malloc( cl->i_buffer_size );
1397 cl->i_mode = HTTPD_CLIENT_FILE;
1398 cl->b_read_waiting = false;
1399
1400 httpd_MsgInit( &cl->query );
1401 httpd_MsgInit( &cl->answer );
1402 }
1403
1404 void httpd_ClientModeStream( httpd_client_t *cl )
1405 {
1406 cl->i_mode = HTTPD_CLIENT_STREAM;
1407 }
1408
1409 void httpd_ClientModeBidir( httpd_client_t *cl )
1410 {
1411 cl->i_mode = HTTPD_CLIENT_BIDIR;
1412 }
1413
1414 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
1415 {
1416 return net_GetPeerAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1417 }
1418
1419 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
1420 {
1421 return net_GetSockAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1422 }
1423
1424 static void httpd_ClientClean( httpd_client_t *cl )
1425 {
1426 if( cl->fd >= 0 )
1427 {
1428 if( cl->p_tls != NULL )
1429 tls_ServerSessionClose( cl->p_tls );
1430 net_Close( cl->fd );
1431 cl->fd = -1;
1432 }
1433
1434 httpd_MsgClean( &cl->answer );
1435 httpd_MsgClean( &cl->query );
1436
1437 free( cl->p_buffer );
1438 cl->p_buffer = NULL;
1439 }
1440
1441 static httpd_client_t *httpd_ClientNew( int fd, tls_session_t *p_tls, mtime_t now )
1442 {
1443 httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1444
1445 if( !cl ) return NULL;
1446
1447 cl->i_ref = 0;
1448 cl->fd = fd;
1449 cl->url = NULL;
1450 cl->p_tls = p_tls;
1451
1452 httpd_ClientInit( cl, now );
1453
1454 return cl;
1455 }
1456
1457 static
1458 ssize_t httpd_NetRecv (httpd_client_t *cl, uint8_t *p, size_t i_len)
1459 {
1460 tls_session_t *p_tls;
1461 ssize_t val;
1462
1463 p_tls = cl->p_tls;
1464 do
1465 val = p_tls ? tls_Recv (p_tls, p, i_len)
1466 : recv (cl->fd, p, i_len, 0);
1467 while (val == -1 && errno == EINTR);
1468 return val;
1469 }
1470
1471 static
1472 ssize_t httpd_NetSend (httpd_client_t *cl, const uint8_t *p, size_t i_len)
1473 {
1474 tls_session_t *p_tls;
1475 ssize_t val;
1476
1477 p_tls = cl->p_tls;
1478 do
1479 val = p_tls ? tls_Send( p_tls, p, i_len )
1480 : send (cl->fd, p, i_len, 0);
1481 while (val == -1 && errno == EINTR);
1482 return val;
1483 }
1484
1485
1486 static const struct
1487 {
1488 const char name[16];
1489 int i_type;
1490 int i_proto;
1491 }
1492 msg_type[] =
1493 {
1494 { "OPTIONS", HTTPD_MSG_OPTIONS, HTTPD_PROTO_RTSP },
1495 { "DESCRIBE", HTTPD_MSG_DESCRIBE, HTTPD_PROTO_RTSP },
1496 { "SETUP", HTTPD_MSG_SETUP, HTTPD_PROTO_RTSP },
1497 { "PLAY", HTTPD_MSG_PLAY, HTTPD_PROTO_RTSP },
1498 { "PAUSE", HTTPD_MSG_PAUSE, HTTPD_PROTO_RTSP },
1499 { "GET_PARAMETER", HTTPD_MSG_GETPARAMETER, HTTPD_PROTO_RTSP },
1500 { "TEARDOWN", HTTPD_MSG_TEARDOWN, HTTPD_PROTO_RTSP },
1501 { "GET", HTTPD_MSG_GET, HTTPD_PROTO_HTTP },
1502 { "HEAD", HTTPD_MSG_HEAD, HTTPD_PROTO_HTTP },
1503 { "POST", HTTPD_MSG_POST, HTTPD_PROTO_HTTP },
1504 { "", HTTPD_MSG_NONE, HTTPD_PROTO_NONE }
1505 };
1506
1507
1508 static void httpd_ClientRecv( httpd_client_t *cl )
1509 {
1510 int i_len;
1511
1512 /* ignore leading whites */
1513 if( ( cl->query.i_proto == HTTPD_PROTO_NONE ) &&
1514 ( cl->i_buffer == 0 ) )
1515 {
1516 unsigned char c;
1517
1518 i_len = httpd_NetRecv( cl, &c, 1 );
1519
1520 if( ( i_len > 0 ) && ( strchr( "\r\n\t ", c ) == NULL ) )
1521 {
1522 cl->p_buffer[0] = c;
1523 cl->i_buffer++;
1524 }
1525 }
1526 else
1527 if( cl->query.i_proto == HTTPD_PROTO_NONE )
1528 {
1529 /* enough to see if it's Interleaved RTP over RTSP or RTSP/HTTP */
1530 i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
1531 7 - cl->i_buffer );
1532 if( i_len > 0 )
1533 {
1534 cl->i_buffer += i_len;
1535 }
1536
1537 if( ( cl->i_buffer >= 4 ) && ( cl->p_buffer[0] == '$' ) )
1538 {
1539 /* Interleaved RTP over RTSP */
1540 cl->query.i_proto = HTTPD_PROTO_RTSP;
1541 cl->query.i_type = HTTPD_MSG_CHANNEL;
1542 cl->query.i_channel = cl->p_buffer[1];
1543 cl->query.i_body = (cl->p_buffer[2] << 8)|cl->p_buffer[3];
1544 cl->query.p_body = malloc( cl->query.i_body );
1545 cl->i_buffer -= 4;
1546 memcpy( cl->query.p_body, cl->p_buffer + 4, cl->i_buffer );
1547 }
1548 else
1549 /* The smallest legal request is 7 bytes ("GET /\r\n"),
1550 * this is the maximum we can ask at this point. */
1551 if( cl->i_buffer >= 7 )
1552 {
1553 if( !memcmp( cl->p_buffer, "HTTP/1.", 7 ) )
1554 {
1555 cl->query.i_proto = HTTPD_PROTO_HTTP;
1556 cl->query.i_type = HTTPD_MSG_ANSWER;
1557 }
1558 else if( !memcmp( cl->p_buffer, "RTSP/1.", 7 ) )
1559 {
1560 cl->query.i_proto = HTTPD_PROTO_RTSP;
1561 cl->query.i_type = HTTPD_MSG_ANSWER;
1562 }
1563 else
1564 {
1565 /* We need the full request line to determine the protocol. */
1566 cl->query.i_proto = HTTPD_PROTO_HTTP0;
1567 cl->query.i_type = HTTPD_MSG_NONE;
1568 }
1569 }
1570 }
1571 else if( cl->query.i_body > 0 )
1572 {
1573 /* we are reading the body of a request or a channel */
1574 i_len = httpd_NetRecv( cl, &cl->query.p_body[cl->i_buffer],
1575 cl->query.i_body - cl->i_buffer );
1576 if( i_len > 0 )
1577 {
1578 cl->i_buffer += i_len;
1579 }
1580 if( cl->i_buffer >= cl->query.i_body )
1581 {
1582 cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1583 }
1584 }
1585 else
1586 {
1587 /* we are reading a header -> char by char */
1588 for( ;; )
1589 {
1590 if( cl->i_buffer == cl->i_buffer_size )
1591 {
1592 uint8_t *newbuf = realloc( cl->p_buffer, cl->i_buffer_size + 1024 );
1593 if( newbuf == NULL )
1594 {
1595 i_len = 0;
1596 break;
1597 }
1598
1599 cl->p_buffer = newbuf;
1600 cl->i_buffer_size += 1024;
1601 }
1602
1603 i_len = httpd_NetRecv (cl, &cl->p_buffer[cl->i_buffer], 1 );
1604 if( i_len <= 0 )
1605 {
1606 break;
1607 }
1608 cl->i_buffer++;
1609
1610 if( ( cl->query.i_proto == HTTPD_PROTO_HTTP0 )
1611 && ( cl->p_buffer[cl->i_buffer - 1] == '\n' ) )
1612 {
1613 /* Request line is now complete */
1614 const char *p = memchr( cl->p_buffer, ' ', cl->i_buffer );
1615 size_t len;
1616
1617 assert( cl->query.i_type == HTTPD_MSG_NONE );
1618
1619 if( p == NULL ) /* no URI: evil guy */
1620 {
1621 i_len = 0; /* drop connection */
1622 break;
1623 }
1624
1625 do
1626 p++; /* skips extra spaces */
1627 while( *p == ' ' );
1628
1629 p = memchr( p, ' ', ((char *)cl->p_buffer) + cl->i_buffer - p );
1630 if( p == NULL ) /* no explicit protocol: HTTP/0.9 */
1631 {
1632 i_len = 0; /* not supported currently -> drop */
1633 break;
1634 }
1635
1636 do
1637 p++; /* skips extra spaces ever again */
1638 while( *p == ' ' );
1639
1640 len = ((char *)cl->p_buffer) + cl->i_buffer - p;
1641 if( len < 7 ) /* foreign protocol */
1642 i_len = 0; /* I don't understand -> drop */
1643 else
1644 if( memcmp( p, "HTTP/1.", 7 ) == 0 )
1645 {
1646 cl->query.i_proto = HTTPD_PROTO_HTTP;
1647 cl->query.i_version = atoi( p + 7 );
1648 }
1649 else
1650 if( memcmp( p, "RTSP/1.", 7 ) == 0 )
1651 {
1652 cl->query.i_proto = HTTPD_PROTO_RTSP;
1653 cl->query.i_version = atoi( p + 7 );
1654 }
1655 else
1656 if( memcmp( p, "HTTP/", 5 ) == 0 )
1657 {
1658 const uint8_t sorry[] =
1659 "HTTP/1.1 505 Unknown HTTP version\r\n\r\n";
1660 httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1661 i_len = 0; /* drop */
1662 }
1663 else
1664 if( memcmp( p, "RTSP/", 5 ) == 0 )
1665 {
1666 const uint8_t sorry[] =
1667 "RTSP/1.0 505 Unknown RTSP version\r\n\r\n";
1668 httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1669 i_len = 0; /* drop */
1670 }
1671 else /* yet another foreign protocol */
1672 i_len = 0;
1673
1674 if( i_len == 0 )
1675 break;
1676 }
1677
1678 if( ( cl->i_buffer >= 2 && !memcmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1679 ( cl->i_buffer >= 4 && !memcmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1680 {
1681 char *p;
1682
1683 /* we have finished the header so parse it and set i_body */
1684 cl->p_buffer[cl->i_buffer] = '\0';
1685
1686 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1687 {
1688 /* FIXME:
1689 * assume strlen( "HTTP/1.x" ) = 8
1690 */
1691 cl->query.i_status =
1692 strtol( (char *)&cl->p_buffer[8],
1693 &p, 0 );
1694 while( *p == ' ' )
1695 p++;
1696 }
1697 else
1698 {
1699 unsigned i;
1700
1701 p = NULL;
1702 cl->query.i_type = HTTPD_MSG_NONE;
1703
1704 /*fprintf( stderr, "received new request=%s\n", cl->p_buffer);*/
1705
1706 for( i = 0; msg_type[i].name[0]; i++ )
1707 {
1708 if( !strncmp( (char *)cl->p_buffer, msg_type[i].name,
1709 strlen( msg_type[i].name ) ) )
1710 {
1711 p = (char *)&cl->p_buffer[strlen(msg_type[i].name) + 1 ];
1712 cl->query.i_type = msg_type[i].i_type;
1713 if( cl->query.i_proto != msg_type[i].i_proto )
1714 {
1715 p = NULL;
1716 cl->query.i_proto = HTTPD_PROTO_NONE;
1717 cl->query.i_type = HTTPD_MSG_NONE;
1718 }
1719 break;
1720 }
1721 }
1722 if( p == NULL )
1723 {
1724 if( strstr( (char *)cl->p_buffer, "HTTP/1." ) )
1725 {
1726 cl->query.i_proto = HTTPD_PROTO_HTTP;
1727 }
1728 else if( strstr( (char *)cl->p_buffer, "RTSP/1." ) )
1729 {
1730 cl->query.i_proto = HTTPD_PROTO_RTSP;
1731 }
1732 }
1733 else
1734 {
1735 char *p2;
1736 char *p3;
1737
1738 while( *p == ' ' )
1739 {
1740 p++;
1741 }
1742 p2 = strchr( p, ' ' );
1743 if( p2 )
1744 {
1745 *p2++ = '\0';
1746 }
1747 if( !strncasecmp( p, "rtsp:", 5 ) )
1748 {
1749 /* for rtsp url, you have rtsp://localhost:port/path */
1750 p += 5;
1751 while( *p == '/' ) p++;
1752 while( *p && *p != '/' ) p++;
1753 }
1754 cl->query.psz_url = strdup( p );
1755 if( ( p3 = strchr( cl->query.psz_url, '?' ) ) )
1756 {
1757 *p3++ = '\0';
1758 cl->query.psz_args = (uint8_t *)strdup( p3 );
1759 }
1760 p = p2;
1761 }
1762 }
1763 if( p )
1764 {
1765 p = strchr( p, '\n' );
1766 }
1767 if( p )
1768 {
1769 while( *p == '\n' || *p == '\r' )
1770 {
1771 p++;
1772 }
1773 while( p && *p != '\0' )
1774 {
1775 char *line = p;
1776 char *eol = p = strchr( p, '\n' );
1777 char *colon;
1778
1779 while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1780 {
1781 *eol-- = '\0';
1782 }
1783
1784 if( ( colon = strchr( line, ':' ) ) )
1785 {
1786 char *name;
1787 char *value;
1788
1789 *colon++ = '\0';
1790 while( *colon == ' ' )
1791 {
1792 colon++;
1793 }
1794 name = strdup( line );
1795 value = strdup( colon );
1796
1797 TAB_APPEND( cl->query.i_name, cl->query.name, name );
1798 TAB_APPEND( cl->query.i_value,cl->query.value,value);
1799
1800 if( !strcasecmp( name, "Content-Length" ) )
1801 {
1802 cl->query.i_body = atol( value );
1803 }
1804 }
1805
1806 if( p )
1807 {
1808 p++;
1809 while( *p == '\n' || *p == '\r' )
1810 {
1811 p++;
1812 }
1813 }
1814 }
1815 }
1816 if( cl->query.i_body > 0 )
1817 {
1818 /* TODO Mhh, handle the case client will only send a
1819 * request and close the connection
1820 * to mark and of body (probably only RTSP) */
1821 cl->query.p_body = malloc( cl->query.i_body );
1822 cl->i_buffer = 0;
1823 }
1824 else
1825 {
1826 cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1827 }
1828 }
1829 }
1830 }
1831
1832 /* check if the client is to be set to dead */
1833 #if defined( WIN32 ) || defined( UNDER_CE )
1834 if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1835 #else
1836 if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1837 #endif
1838 {
1839 if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1840 {
1841 /* connection closed -> end of data */
1842 if( cl->query.i_body > 0 )
1843 {
1844 cl->query.i_body = cl->i_buffer;
1845 }
1846 cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1847 }
1848 else
1849 {
1850 cl->i_state = HTTPD_CLIENT_DEAD;
1851 }
1852 }
1853
1854 /* XXX: for QT I have to disable timeout. Try to find why */
1855 if( cl->query.i_proto == HTTPD_PROTO_RTSP )
1856 cl->i_activity_timeout = 0;
1857
1858 #if 0 /* Debugging only */
1859 if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1860 {
1861 int i;
1862
1863 fprintf( stderr, "received new request\n" );
1864 fprintf( stderr, " - proto=%s\n",
1865 cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1866 fprintf( stderr, " - version=%d\n", cl->query.i_version );
1867 fprintf( stderr, " - msg=%d\n", cl->query.i_type );
1868 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1869 {
1870 fprintf( stderr, " - answer=%d '%s'\n", cl->query.i_status,
1871 cl->query.psz_status );
1872 }
1873 else if( cl->query.i_type != HTTPD_MSG_NONE )
1874 {
1875 fprintf( stderr, " - url=%s\n", cl->query.psz_url );
1876 }
1877 for( i = 0; i < cl->query.i_name; i++ )
1878 {
1879 fprintf( stderr, " - option name='%s' value='%s'\n",
1880 cl->query.name[i], cl->query.value[i] );
1881 }
1882 }
1883 #endif
1884 }
1885
1886 static void httpd_ClientSend( httpd_client_t *cl )
1887 {
1888 int i;
1889 int i_len;
1890
1891 if( cl->i_buffer < 0 )
1892 {
1893 /* We need to create the header */
1894 int i_size = 0;
1895 char *p;
1896 const char *psz_status = httpd_ReasonFromCode( cl->answer.i_status );
1897
1898 i_size = strlen( "HTTP/1.") + 10 + 10 + strlen( psz_status ) + 5;
1899 for( i = 0; i < cl->answer.i_name; i++ )
1900 {
1901 i_size += strlen( cl->answer.name[i] ) + 2 +
1902 strlen( cl->answer.value[i] ) + 2;
1903 }
1904
1905 if( cl->i_buffer_size < i_size )
1906 {
1907 cl->i_buffer_size = i_size;
1908 free( cl->p_buffer );
1909 cl->p_buffer = malloc( i_size );
1910 }
1911 p = (char *)cl->p_buffer;
1912
1913 p += sprintf( p, "%s.%u %d %s\r\n",
1914 cl->answer.i_proto == HTTPD_PROTO_HTTP ? "HTTP/1" : "RTSP/1",
1915 cl->answer.i_version,
1916 cl->answer.i_status, psz_status );
1917 for( i = 0; i < cl->answer.i_name; i++ )
1918 {
1919 p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1920 cl->answer.value[i] );
1921 }
1922 p += sprintf( p, "\r\n" );
1923
1924 cl->i_buffer = 0;
1925 cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1926
1927 /*fprintf( stderr, "sending answer\n" );
1928 fprintf( stderr, "%s", cl->p_buffer );*/
1929 }
1930
1931 i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
1932 cl->i_buffer_size - cl->i_buffer );
1933 if( i_len >= 0 )
1934 {
1935 cl->i_buffer += i_len;
1936
1937 if( cl->i_buffer >= cl->i_buffer_size )
1938 {
1939 if( cl->answer.i_body == 0 && cl->answer.i_body_offset > 0 &&
1940 !cl->b_read_waiting )
1941 {
1942 /* catch more body data */
1943 int i_msg = cl->query.i_type;
1944 int64_t i_offset = cl->answer.i_body_offset;
1945
1946 httpd_MsgClean( &cl->answer );
1947 cl->answer.i_body_offset = i_offset;
1948
1949 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1950 &cl->answer, &cl->query );
1951 }
1952
1953 if( cl->answer.i_body > 0 )
1954 {
1955 /* send the body data */
1956 free( cl->p_buffer );
1957 cl->p_buffer = cl->answer.p_body;
1958 cl->i_buffer_size = cl->answer.i_body;
1959 cl->i_buffer = 0;
1960
1961 cl->answer.i_body = 0;
1962 cl->answer.p_body = NULL;
1963 }
1964 else
1965 {
1966 /* send finished */
1967 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1968 }
1969 }
1970 }
1971 else
1972 {
1973 #if defined( WIN32 ) || defined( UNDER_CE )
1974 if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1975 #else
1976 if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1977 #endif
1978 {
1979 /* error */
1980 cl->i_state = HTTPD_CLIENT_DEAD;
1981 }
1982 }
1983 }
1984
1985 static void httpd_ClientTlsHsIn( httpd_client_t *cl )
1986 {
1987 switch( tls_SessionContinueHandshake( cl->p_tls ) )
1988 {
1989 case 0:
1990 cl->i_state = HTTPD_CLIENT_RECEIVING;
1991 break;
1992
1993 case -1:
1994 cl->i_state = HTTPD_CLIENT_DEAD;
1995 cl->p_tls = NULL;
1996 break;
1997
1998 case 2:
1999 cl->i_state = HTTPD_CLIENT_TLS_HS_OUT;
2000 }
2001 }
2002
2003 static void httpd_ClientTlsHsOut( httpd_client_t *cl )
2004 {
2005 switch( tls_SessionContinueHandshake( cl->p_tls ) )
2006 {
2007 case 0:
2008 cl->i_state = HTTPD_CLIENT_RECEIVING;
2009 break;
2010
2011 case -1:
2012 cl->i_state = HTTPD_CLIENT_DEAD;
2013 cl->p_tls = NULL;
2014 break;
2015
2016 case 1:
2017 cl->i_state = HTTPD_CLIENT_TLS_HS_IN;
2018 break;
2019 }
2020 }
2021
2022 static void httpd_HostThread( httpd_host_t *host )
2023 {
2024 tls_session_t *p_tls = NULL;
2025 counter_t *p_total_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2026 counter_t *p_active_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2027 int evfd;
2028 bool b_die;
2029
2030 retry:
2031 vlc_object_lock( host );
2032 evfd = vlc_object_waitpipe( VLC_OBJECT( host ) );
2033 b_die = !vlc_object_alive( host );
2034 vlc_object_unlock( host );
2035
2036 while( !b_die )
2037 {
2038 if( host->i_url <= 0 )
2039 {
2040 /* 0.2s (FIXME: use a condition variable) */
2041 msleep( 200000 );
2042 goto retry;
2043 }
2044
2045 /* prepare a new TLS session */
2046 if( ( p_tls == NULL ) && ( host->p_tls != NULL ) )
2047 p_tls = tls_ServerSessionPrepare( host->p_tls );
2048
2049 struct pollfd ufd[host->nfd + host->i_client + 1];
2050 unsigned nfd;
2051 for( nfd = 0; nfd < host->nfd; nfd++ )
2052 {
2053 ufd[nfd].fd = host->fds[nfd];
2054 ufd[nfd].events = POLLIN;
2055 ufd[nfd].revents = 0;
2056 }
2057
2058 /* add all socket that should be read/write and close dead connection */
2059 vlc_mutex_lock( &host->lock );
2060 mtime_t now = mdate();
2061 bool b_low_delay = false;
2062
2063 for(int i_client = 0; i_client < host->i_client; i_client++ )
2064 {
2065 httpd_client_t *cl = host->client[i_client];
2066 if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
2067 ( cl->i_state == HTTPD_CLIENT_DEAD ||
2068 ( cl->i_activity_timeout > 0 &&
2069 cl->i_activity_date+cl->i_activity_timeout < now) ) ) )
2070 {
2071 httpd_ClientClean( cl );
2072 stats_UpdateInteger( host, p_active_counter, -1, NULL );
2073 TAB_REMOVE( host->i_client, host->client, cl );
2074 free( cl );
2075 i_client--;
2076 continue;
2077 }
2078
2079 struct pollfd *pufd = ufd + nfd;
2080 assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
2081
2082 pufd->fd = cl->fd;
2083 pufd->events = pufd->revents = 0;
2084
2085 if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
2086 || ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
2087 {
2088 pufd->events = POLLIN;
2089 }
2090 else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
2091 || ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
2092 {
2093 pufd->events = POLLOUT;
2094 }
2095 else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
2096 {
2097 httpd_message_t *answer = &cl->answer;
2098 httpd_message_t *query = &cl->query;
2099 int i_msg = query->i_type;
2100
2101 httpd_MsgInit( answer );
2102
2103 /* Handle what we received */
2104 if( (cl->i_mode != HTTPD_CLIENT_BIDIR) &&
2105 (i_msg == HTTPD_MSG_ANSWER || i_msg == HTTPD_MSG_CHANNEL) )
2106 {
2107 /* we can only receive request from client when not
2108 * in BIDIR mode */
2109 cl->url = NULL;
2110 cl->i_state = HTTPD_CLIENT_DEAD;
2111 }
2112 else if( i_msg == HTTPD_MSG_ANSWER )
2113 {
2114 /* We are in BIDIR mode, trigger the callback and then
2115 * check for new data */
2116 if( cl->url && cl->url->catch[i_msg].cb )
2117 {
2118 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2119 cl, NULL, query );
2120 }
2121 cl->i_state = HTTPD_CLIENT_WAITING;
2122 }
2123 else if( i_msg == HTTPD_MSG_CHANNEL )
2124 {
2125 /* We are in BIDIR mode, trigger the callback and then
2126 * check for new data */
2127 if( cl->url && cl->url->catch[i_msg].cb )
2128 {
2129 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2130 cl, NULL, query );
2131 }
2132 cl->i_state = HTTPD_CLIENT_WAITING;
2133 }
2134 else if( i_msg == HTTPD_MSG_OPTIONS )
2135 {
2136
2137 answer->i_type = HTTPD_MSG_ANSWER;
2138 answer->i_proto = query->i_proto;
2139 answer->i_status = 200;
2140 answer->i_body = 0;
2141 answer->p_body = NULL;
2142
2143 httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING );
2144 httpd_MsgAdd( answer, "Content-Length", "0" );
2145
2146 switch( query->i_proto )
2147 {
2148 case HTTPD_PROTO_HTTP:
2149 answer->i_version = 1;
2150 httpd_MsgAdd( answer, "Allow",
2151 "GET,HEAD,POST,OPTIONS" );
2152 break;
2153
2154 case HTTPD_PROTO_RTSP:
2155 {
2156 const char *p;
2157 answer->i_version = 0;
2158
2159 p = httpd_MsgGet( query, "Cseq" );
2160 if( p != NULL )
2161 httpd_MsgAdd( answer, "Cseq", "%s", p );
2162 p = httpd_MsgGet( query, "Timestamp" );
2163 if( p != NULL )
2164 httpd_MsgAdd( answer, "Timestamp", "%s", p );
2165
2166 p = httpd_MsgGet( query, "Require" );
2167 if( p != NULL )
2168 {
2169 answer->i_status = 551;
2170 httpd_MsgAdd( query, "Unsupported", "%s", p );
2171 }
2172
2173 httpd_MsgAdd( answer, "Public", "DESCRIBE,SETUP,"
2174 "TEARDOWN,PLAY,PAUSE,GET_PARAMETER" );
2175 break;
2176 }
2177 }
2178
2179 cl->i_buffer = -1; /* Force the creation of the answer in
2180 * httpd_ClientSend */
2181 cl->i_state = HTTPD_CLIENT_SENDING;
2182 }
2183 else if( i_msg == HTTPD_MSG_NONE )
2184 {
2185 if( query->i_proto == HTTPD_PROTO_NONE )
2186 {
2187 cl->url = NULL;
2188 cl->i_state = HTTPD_CLIENT_DEAD;
2189 }
2190 else
2191 {
2192 char *p;
2193
2194 /* unimplemented */
2195 answer->i_proto = query->i_proto ;
2196 answer->i_type = HTTPD_MSG_ANSWER;
2197 answer->i_version= 0;
2198 answer->i_status = 501;
2199
2200 answer->i_body = httpd_HtmlError (&p, 501, NULL);
2201 answer->p_body = (uint8_t *)p;
2202 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2203
2204 cl->i_buffer = -1; /* Force the creation of the answer in httpd_ClientSend */
2205 cl->i_state = HTTPD_CLIENT_SENDING;
2206 }
2207 }
2208 else
2209 {
2210 bool b_auth_failed = false;
2211 bool b_hosts_failed = false;
2212
2213 /* Search the url and trigger callbacks */
2214 for(int i = 0; i < host->i_url; i++ )
2215 {
2216 httpd_url_t *url = host->url[i];
2217
2218 if( !strcmp( url->psz_url, query->psz_url ) )
2219 {
2220 if( url->catch[i_msg].cb )
2221 {
2222 if( answer && ( url->p_acl != NULL ) )
2223 {
2224 char ip[NI_MAXNUMERICHOST];
2225
2226 if( ( httpd_ClientIP( cl, ip ) == NULL )
2227 || ACL_Check( url->p_acl, ip ) )
2228 {
2229 b_hosts_failed = true;
2230 break;
2231 }
2232 }
2233
2234 if( answer && ( *url->psz_user || *url->psz_password ) )
2235 {
2236 /* create the headers */
2237 const char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
2238 char *user = NULL, *pass = NULL;
2239
2240 if( b64 != NULL
2241 && !strncasecmp( b64, "BASIC", 5 ) )
2242 {
2243 b64 += 5;
2244 while( *b64 == ' ' )
2245 b64++;
2246
2247 user = vlc_b64_decode( b64 );
2248 if (user != NULL)
2249 {
2250 pass = strchr (user, ':');
2251 if (pass != NULL)
2252 *pass++ = '\0';
2253 }
2254 }
2255
2256 if ((user == NULL) || (pass == NULL)
2257 || strcmp (user, url->psz_user)
2258 || strcmp (pass, url->psz_password))
2259 {
2260 httpd_MsgAdd( answer,
2261 "WWW-Authenticate",
2262 "Basic realm=\"%s\"",
2263 url->psz_user );
2264 /* We fail for all url */
2265 b_auth_failed = true;
2266 free( user );
2267 break;
2268 }
2269
2270 free( user );
2271 }
2272
2273 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
2274 {
2275 if( answer->i_proto == HTTPD_PROTO_NONE )
2276 {
2277 /* Raw answer from a CGI */
2278 cl->i_buffer = cl->i_buffer_size;
2279 }
2280 else
2281 cl->i_buffer = -1;
2282
2283 /* only one url can answer */
2284 answer = NULL;
2285 if( cl->url == NULL )
2286 {
2287 cl->url = url;
2288 }
2289 }
2290 }
2291 }
2292 }
2293
2294 if( answer )
2295 {
2296 char *p;
2297
2298 answer->i_proto = query->i_proto;
2299 answer->i_type = HTTPD_MSG_ANSWER;
2300 answer->i_version= 0;
2301
2302 if( b_hosts_failed )
2303 {
2304 answer->i_status = 403;
2305 }
2306 else if( b_auth_failed )
2307 {
2308 answer->i_status = 401;
2309 }
2310 else
2311 {
2312 /* no url registered */
2313 answer->i_status = 404;
2314 }
2315
2316 answer->i_body = httpd_HtmlError (&p,
2317 answer->i_status,
2318 query->psz_url);
2319 answer->p_body = (uint8_t *)p;
2320
2321 cl->i_buffer = -1; /* Force the creation of the answer in httpd_ClientSend */
2322 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2323 httpd_MsgAdd( answer, "Content-Type", "%s", "text/html" );
2324 }
2325
2326 cl->i_state = HTTPD_CLIENT_SENDING;
2327 }
2328 }
2329 else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2330 {
2331 if( cl->i_mode == HTTPD_CLIENT_FILE || cl->answer.i_body_offset == 0 )
2332 {
2333 const char *psz_connection = httpd_MsgGet( &cl->answer, "Connection" );
2334 const char *psz_query = httpd_MsgGet( &cl->query, "Connection" );
2335 bool b_connection = false;
2336 bool b_keepalive = false;
2337 bool b_query = false;
2338
2339 cl->url = NULL;
2340 if( psz_connection )
2341 {
2342 b_connection = ( strcasecmp( psz_connection, "Close" ) == 0 );
2343 b_keepalive = ( strcasecmp( psz_connection, "Keep-Alive" ) == 0 );
2344 }
2345
2346 if( psz_query )
2347 {
2348 b_query = ( strcasecmp( psz_query, "Close" ) == 0 );
2349 }
2350
2351 if( ( ( cl->query.i_proto == HTTPD_PROTO_HTTP ) &&
2352 ( ( cl->answer.i_version == 0 && b_keepalive ) ||
2353 ( cl->answer.i_version == 1 && !b_connection ) ) ) ||
2354 ( ( cl->query.i_proto == HTTPD_PROTO_RTSP ) &&
2355 !b_query && !b_connection ) )
2356 {
2357 httpd_MsgClean( &cl->query );
2358 httpd_MsgInit( &cl->query );
2359
2360 cl->i_buffer = 0;
2361 cl->i_buffer_size = 1000;
2362 free( cl->p_buffer );
2363 cl->p_buffer = malloc( cl->i_buffer_size );
2364 cl->i_state = HTTPD_CLIENT_RECEIVING;
2365 }
2366 else
2367 {
2368 cl->i_state = HTTPD_CLIENT_DEAD;
2369 }
2370 httpd_MsgClean( &cl->answer );
2371 }
2372 else if( cl->b_read_waiting )
2373 {
2374 /* we have a message waiting for us to read it */
2375 httpd_MsgClean( &cl->answer );
2376 httpd_MsgClean( &cl->query );
2377
2378 cl->i_buffer = 0;
2379 cl->i_buffer_size = 1000;
2380 free( cl->p_buffer );
2381 cl->p_buffer = malloc( cl->i_buffer_size );
2382 cl->i_state = HTTPD_CLIENT_RECEIVING;
2383 cl->b_read_waiting = false;
2384 }
2385 else
2386 {
2387 int64_t i_offset = cl->answer.i_body_offset;
2388 httpd_MsgClean( &cl->answer );
2389
2390 cl->answer.i_body_offset = i_offset;
2391 free( cl->p_buffer );
2392 cl->p_buffer = NULL;
2393 cl->i_buffer = 0;
2394 cl->i_buffer_size = 0;
2395
2396 cl->i_state = HTTPD_CLIENT_WAITING;
2397 }
2398 }
2399 else if( cl->i_state == HTTPD_CLIENT_WAITING )
2400 {
2401 int64_t i_offset = cl->answer.i_body_offset;
2402 int i_msg = cl->query.i_type;
2403
2404 httpd_MsgInit( &cl->answer );
2405 cl->answer.i_body_offset = i_offset;
2406
2407 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2408 &cl->answer, &cl->query );
2409 if( cl->answer.i_type != HTTPD_MSG_NONE )
2410 {
2411 /* we have new data, so re-enter send mode */
2412 cl->i_buffer = 0;
2413 cl->p_buffer = cl->answer.p_body;
2414 cl->i_buffer_size = cl->answer.i_body;
2415 cl->answer.p_body = NULL;
2416 cl->answer.i_body = 0;
2417 cl->i_state = HTTPD_CLIENT_SENDING;
2418 }
2419 }
2420
2421 /* Special for BIDIR mode we also check reading */
2422 if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2423 cl->i_state == HTTPD_CLIENT_SENDING )
2424 {
2425 pufd->events |= POLLIN;
2426 }
2427
2428 if (pufd->events != 0)
2429 nfd++;
2430 else
2431 b_low_delay = true;
2432 }
2433 vlc_mutex_unlock( &host->lock );
2434
2435 ufd[nfd].fd = evfd;
2436 ufd[nfd].events = POLLIN;
2437 ufd[nfd].revents = 0;
2438 nfd++;
2439
2440 /* we will wait 20ms (not too big) if HTTPD_CLIENT_WAITING */
2441 switch( poll( ufd, nfd, b_low_delay ? 20 : -1) )
2442 {
2443 case -1:
2444 if (errno != EINTR)
2445 {
2446 /* Kernel on low memory or a bug: pace */
2447 msg_Err( host, "polling error: %m" );
2448 msleep( 100000 );
2449 }
2450 case 0:
2451 continue;
2452 }
2453
2454 vlc_object_lock( host );
2455 if( ufd[nfd - 1].revents )
2456 {
2457 b_die = !vlc_object_alive( host );
2458 if( !b_die )
2459 vlc_object_wait( host );
2460 }
2461 vlc_object_unlock( host );
2462
2463 /* Handle client sockets */
2464 vlc_mutex_lock( &host->lock );
2465 now = mdate();
2466 for( int i_client = 0; i_client < host->i_client; i_client++ )
2467 {
2468 httpd_client_t *cl = host->client[i_client];
2469 const struct pollfd *pufd = &ufd[host->nfd + i_client];
2470
2471 assert( pufd < &ufd[sizeof(ufd) / sizeof(ufd[0])] );
2472
2473 if( cl->fd != pufd->fd )
2474 continue; // we were not waiting for this client
2475 if( pufd->revents == 0 )
2476 continue; // no event received
2477
2478 cl->i_activity_date = now;
2479
2480 if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2481 {
2482 httpd_ClientRecv( cl );
2483 }
2484 else if( cl->i_state == HTTPD_CLIENT_SENDING )
2485 {
2486 httpd_ClientSend( cl );
2487 }
2488 else if( cl->i_state == HTTPD_CLIENT_TLS_HS_IN )
2489 {
2490 httpd_ClientTlsHsIn( cl );
2491 }
2492 else if( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT )
2493 {
2494 httpd_ClientTlsHsOut( cl );
2495 }
2496
2497 if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2498 cl->i_state == HTTPD_CLIENT_SENDING &&
2499 (pufd->revents & POLLIN) )
2500 {
2501 cl->b_read_waiting = true;
2502 }
2503 }
2504 vlc_mutex_unlock( &host->lock );
2505
2506 /* Handle server sockets (accept new connections) */
2507 for( nfd = 0; nfd < host->nfd; nfd++ )
2508 {
2509 httpd_client_t *cl;
2510 int i_state = -1;
2511 int fd = ufd[nfd].fd;
2512
2513 assert (fd == host->fds[nfd]);
2514
2515 if( ufd[nfd].revents == 0 )
2516 continue;
2517
2518 /* */
2519 fd = accept (fd, NULL, NULL);
2520 if (fd == -1)
2521 continue;
2522
2523 net_SetupSocket (fd);
2524 if( p_tls != NULL )
2525 {
2526 switch( tls_ServerSessionHandshake( p_tls, fd ) )
2527 {
2528 case -1:
2529 msg_Err( host, "Rejecting TLS connection" );
2530 net_Close( fd );
2531 fd = -1;
2532 p_tls = NULL;
2533 break;
2534
2535 case 1: /* missing input - most likely */
2536 i_state = HTTPD_CLIENT_TLS_HS_IN;
2537 break;
2538
2539 case 2: /* missing output */
2540 i_state = HTTPD_CLIENT_TLS_HS_OUT;
2541 break;
2542 }
2543
2544 if( (p_tls == NULL) != (host->p_tls == NULL) )
2545 break; // wasted TLS session, cannot accept() anymore
2546 }
2547
2548 stats_UpdateInteger( host, p_total_counter, 1, NULL );
2549 stats_UpdateInteger( host, p_active_counter, 1, NULL );
2550 cl = httpd_ClientNew( fd, p_tls, now );
2551 p_tls = NULL;
2552 vlc_mutex_lock( &host->lock );
2553 TAB_APPEND( host->i_client, host->client, cl );
2554 vlc_mutex_unlock( &host->lock );
2555 if( i_state != -1 )
2556 cl->i_state = i_state; // override state for TLS
2557
2558 if (host->p_tls != NULL)
2559 break; // cannot accept further without new TLS session
2560 }
2561
2562 }
2563
2564 if( p_tls != NULL )
2565 tls_ServerSessionClose( p_tls );
2566 if( p_total_counter )
2567 stats_CounterClean( p_total_counter );
2568 if( p_active_counter )
2569 stats_CounterClean( p_active_counter );
2570 }
2571
2572 #else /* ENABLE_HTTPD */
2573
2574 /* We just define an empty wrapper */
2575 httpd_host_t *httpd_TLSHostNew( vlc_object_t *a, const char *b,
2576 int c,
2577 const char *e, const char *f,
2578 const char *g, const char* h)
2579 {
2580 msg_Err( a, "HTTP daemon support is disabled" );
2581 return NULL;
2582 }
2583
2584 httpd_host_t *httpd_HostNew( vlc_object_t *a, const char *b,
2585 int c )
2586 {
2587 msg_Err( a, "HTTP daemon support is disabled" );
2588 return NULL;
2589 }
2590
2591 void httpd_HostDelete( httpd_host_t *a )
2592 {
2593 }
2594
2595 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
2596 const char *psz_user, const char *psz_password,
2597 const vlc_acl_t *p_acl )
2598 {
2599 return NULL;
2600 }
2601
2602 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
2603 const char *psz_user, const char *psz_password,
2604 const vlc_acl_t *p_acl )
2605 {
2606 return NULL;
2607 }
2608
2609 int httpd_UrlCatch( httpd_url_t *a, int b, httpd_callback_t c,
2610 httpd_callback_sys_t *d )
2611 {
2612 return 0;
2613 }
2614
2615 void httpd_UrlDelete( httpd_url_t *a )
2616 {
2617 }
2618
2619 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
2620 {
2621 return NULL;
2622 }
2623
2624 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
2625 {
2626 return NULL;
2627 }
2628
2629 void httpd_ClientModeStream( httpd_client_t *a )
2630 {
2631 }
2632
2633 void httpd_ClientModeBidir( httpd_client_t *a )
2634 {
2635 }
2636
2637 httpd_file_sys_t *httpd_FileDelete( httpd_file_t *file )
2638 {
2639 return NULL;
2640 }
2641
2642 httpd_file_t *httpd_FileNew( httpd_host_t *host,
2643 const char *psz_url, const char *psz_mime,
2644 const char *psz_user, const char *psz_password,
2645 const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
2646 httpd_file_sys_t *p_sys )
2647 {
2648 return NULL;
2649 }
2650
2651 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
2652 const char *psz_user,
2653 const char *psz_password,
2654 const vlc_acl_t *p_acl,
2655 httpd_handler_callback_t pf_fill,
2656 httpd_handler_sys_t *p_sys )
2657 {
2658 return NULL;
2659 }
2660
2661 httpd_handler_sys_t *httpd_HandlerDelete( httpd_handler_t *handler )
2662 {
2663 return NULL;
2664 }
2665
2666 void httpd_RedirectDelete( httpd_redirect_t *a )
2667 {
2668 }
2669
2670 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
2671 const char *psz_url_src )
2672 {
2673 return NULL;
2674 }
2675
2676 void httpd_StreamDelete( httpd_stream_t *a )
2677 {
2678 }
2679
2680 int httpd_StreamHeader( httpd_stream_t *a, uint8_t *b, int c )
2681 {
2682 return 0;
2683 }
2684
2685 int httpd_StreamSend ( httpd_stream_t *a, uint8_t *b, int c )
2686 {
2687 return 0;
2688 }
2689
2690 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
2691 const char *psz_url, const char *psz_mime,
2692 const char *psz_user, const char *psz_password,
2693 const vlc_acl_t *p_acl )
2694 {
2695 return NULL;
2696 }
2697
2698 void httpd_MsgInit ( httpd_message_t *a )
2699 {
2700 }
2701
2702 void httpd_MsgAdd ( httpd_message_t *a, const char *b, const char *c, ... )
2703 {
2704 }
2705
2706 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
2707 {
2708 return "";
2709 }
2710
2711 void httpd_MsgClean( httpd_message_t *a )
2712 {
2713 }
2714
2715 #endif /* ENABLE_HTTPD */
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