Remove HTTPD object type
[vlc.git] / src / network / httpd.c
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/vlc.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 *psz_args = query->psz_args;
398     uint8_t **pp_body, *p_body;
399     const char *psz_connection;
400     int *pi_body, i_body;
401
402     if( answer == NULL || query == NULL )
403     {
404         return VLC_SUCCESS;
405     }
406     answer->i_proto  = HTTPD_PROTO_HTTP;
407     answer->i_version= 1;
408     answer->i_type   = HTTPD_MSG_ANSWER;
409
410     answer->i_status = 200;
411
412     httpd_MsgAdd( answer, "Content-type",  "%s", file->psz_mime );
413     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
414
415     if( query->i_type != HTTPD_MSG_HEAD )
416     {
417         pp_body = &answer->p_body;
418         pi_body = &answer->i_body;
419     }
420     else
421     {
422         /* The file still needs to be executed. */
423         p_body = NULL;
424         i_body = 0;
425         pp_body = &p_body;
426         pi_body = &i_body;
427     }
428
429     if( query->i_type == HTTPD_MSG_POST )
430     {
431         /* msg_Warn not supported */
432     }
433
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     uint8_t *psz_args = query->psz_args;
524     char psz_remote_addr[NI_MAXNUMERICHOST];
525
526     if( answer == NULL || query == NULL )
527     {
528         return VLC_SUCCESS;
529     }
530     answer->i_proto  = HTTPD_PROTO_NONE;
531     answer->i_type   = HTTPD_MSG_ANSWER;
532
533     /* We do it ourselves, thanks */
534     answer->i_status = 0;
535
536     if( httpd_ClientIP( cl, psz_remote_addr ) == NULL )
537         *psz_remote_addr = '\0';
538
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             vlc_bool_t b_xplaystream = VLC_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 = VLC_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( host, &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     {
993         msg_Err( p_this, "memory error" );
994         return NULL;
995     }
996
997     /* to be sure to avoid multiple creation */
998     var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
999     var_Create( p_this->p_libvlc, "httpd_object", VLC_VAR_ADDRESS );
1000     var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
1001     vlc_mutex_lock( lockval.p_address );
1002     var_Get( p_this->p_libvlc, "httpd_object", &ptrval );
1003
1004     if( ptrval.p_address != NULL )
1005         httpd = ptrval.p_address;
1006     else
1007     {
1008         msg_Info( p_this, "creating httpd" );
1009         httpd = (httpd_t *)vlc_custom_create( p_this, sizeof (*httpd),
1010                                               VLC_OBJECT_GENERIC,
1011                                               psz_object_type );
1012         if( httpd == NULL )
1013         {
1014             vlc_mutex_unlock( lockval.p_address );
1015             free( psz_host );
1016             return NULL;
1017         }
1018
1019         httpd->i_host = 0;
1020         httpd->host   = NULL;
1021
1022         ptrval.p_address = httpd;
1023         var_Set( p_this->p_libvlc, "httpd_object", ptrval );
1024         vlc_object_yield( httpd );
1025         vlc_object_attach( httpd, p_this->p_libvlc );
1026     }
1027
1028     /* verify if it already exist */
1029     for( i = httpd->i_host - 1; i >= 0; i-- )
1030     {
1031         host = httpd->host[i];
1032
1033         /* cannot mix TLS and non-TLS hosts */
1034         if( ( ( httpd->host[i]->p_tls != NULL ) != ( psz_cert != NULL ) )
1035          || ( host->i_port != i_port )
1036          || strcmp( host->psz_hostname, psz_hostname ) )
1037             continue;
1038
1039         /* yep found */
1040         host->i_ref++;
1041
1042         vlc_mutex_unlock( lockval.p_address );
1043         return host;
1044     }
1045
1046     host = NULL;
1047
1048     /* determine TLS configuration */
1049     if ( psz_cert != NULL )
1050     {
1051         p_tls = tls_ServerCreate( p_this, psz_cert, psz_key );
1052         if ( p_tls == NULL )
1053         {
1054             msg_Err( p_this, "TLS initialization error" );
1055             goto error;
1056         }
1057
1058         if ( ( psz_ca != NULL) && tls_ServerAddCA( p_tls, psz_ca ) )
1059         {
1060             msg_Err( p_this, "TLS CA error" );
1061             goto error;
1062         }
1063
1064         if ( ( psz_crl != NULL) && tls_ServerAddCRL( p_tls, psz_crl ) )
1065         {
1066             msg_Err( p_this, "TLS CRL error" );
1067             goto error;
1068         }
1069     }
1070     else
1071         p_tls = NULL;
1072
1073     /* create the new host */
1074     host = (httpd_host_t *)vlc_custom_create( p_this, sizeof (*host),
1075                                               VLC_OBJECT_HTTPD_HOST,
1076                                               psz_object_type );
1077     if (host == NULL)
1078         goto error;
1079
1080     vlc_object_lock( host );
1081     if( vlc_object_waitpipe( VLC_OBJECT( host ) ) == -1 )
1082     {
1083         msg_Err( host, "signaling pipe error: %m" );
1084         vlc_object_unlock( host );
1085         goto error;
1086     }
1087     vlc_object_unlock( host );
1088
1089     host->httpd = httpd;
1090     vlc_mutex_init( httpd, &host->lock );
1091     host->i_ref = 1;
1092
1093     host->fds = net_ListenTCP( p_this, psz_host, i_port );
1094     if( host->fds == NULL )
1095     {
1096         msg_Err( p_this, "cannot create socket(s) for HTTP host" );
1097         goto error;
1098     }
1099     for (host->nfd = 0; host->fds[host->nfd] != -1; host->nfd++);
1100
1101     host->i_port = i_port;
1102     host->psz_hostname = psz_host;
1103
1104     host->i_url     = 0;
1105     host->url       = NULL;
1106     host->i_client  = 0;
1107     host->client    = NULL;
1108
1109     host->p_tls = p_tls;
1110
1111     /* create the thread */
1112     if( vlc_thread_create( host, "httpd host thread", httpd_HostThread,
1113                            VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
1114     {
1115         msg_Err( p_this, "cannot spawn http host thread" );
1116         goto error;
1117     }
1118
1119     /* now add it to httpd */
1120     TAB_APPEND( httpd->i_host, httpd->host, host );
1121     vlc_mutex_unlock( lockval.p_address );
1122
1123     return host;
1124
1125 error:
1126     free( psz_host );
1127     if( httpd->i_host <= 0 )
1128     {
1129         vlc_object_release( httpd );
1130         vlc_object_detach( httpd );
1131         vlc_object_release( httpd );
1132     }
1133     vlc_mutex_unlock( lockval.p_address );
1134
1135     if( host != NULL )
1136     {
1137         net_ListenClose( host->fds );
1138         vlc_mutex_destroy( &host->lock );
1139         vlc_object_release( host );
1140     }
1141
1142     if( p_tls != NULL )
1143         tls_ServerDelete( p_tls );
1144
1145     return NULL;
1146 }
1147
1148 /* delete a host */
1149 void httpd_HostDelete( httpd_host_t *host )
1150 {
1151     httpd_t *httpd = host->httpd;
1152     vlc_value_t lockval;
1153     int i;
1154
1155     var_Get( httpd->p_libvlc, "httpd_mutex", &lockval );
1156     vlc_mutex_lock( lockval.p_address );
1157
1158     host->i_ref--;
1159     if( host->i_ref > 0 )
1160     {
1161         /* still used */
1162         vlc_mutex_unlock( lockval.p_address );
1163         msg_Dbg( host, "httpd_HostDelete: host still used" );
1164         return;
1165     }
1166     TAB_REMOVE( httpd->i_host, httpd->host, host );
1167
1168     vlc_object_kill( host );
1169     vlc_thread_join( host );
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         tls_ServerDelete( host->p_tls );
1190
1191     net_ListenClose( host->fds );
1192     free( host->psz_hostname );
1193
1194     vlc_mutex_destroy( &host->lock );
1195     vlc_object_release( host );
1196
1197     vlc_object_release( httpd );
1198     if( httpd->i_host <= 0 )
1199     {
1200         vlc_value_t ptrval;
1201
1202         msg_Dbg( httpd, "no host left, stopping httpd" );
1203
1204         ptrval.p_address = NULL;
1205         var_Set( httpd->p_libvlc, "httpd_object", ptrval );
1206         vlc_object_detach( httpd );
1207         vlc_object_release( httpd );
1208
1209     }
1210     vlc_mutex_unlock( lockval.p_address );
1211 }
1212
1213 /* register a new url */
1214 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, const char *psz_url,
1215                                          const char *psz_user, const char *psz_password,
1216                                          const vlc_acl_t *p_acl, vlc_bool_t b_check )
1217 {
1218     httpd_url_t *url;
1219     int         i;
1220
1221     assert( psz_url != NULL );
1222
1223     vlc_mutex_lock( &host->lock );
1224     if( b_check )
1225     {
1226         for( i = 0; i < host->i_url; i++ )
1227         {
1228             if( !strcmp( psz_url, host->url[i]->psz_url ) )
1229             {
1230                 msg_Warn( host->httpd,
1231                           "cannot add '%s' (url already defined)", psz_url );
1232                 vlc_mutex_unlock( &host->lock );
1233                 return NULL;
1234             }
1235         }
1236     }
1237
1238     url = malloc( sizeof( httpd_url_t ) );
1239     url->host = host;
1240
1241     vlc_mutex_init( host->httpd, &url->lock );
1242     url->psz_url = strdup( psz_url );
1243     url->psz_user = strdup( psz_user ? psz_user : "" );
1244     url->psz_password = strdup( psz_password ? psz_password : "" );
1245     url->p_acl = ACL_Duplicate( host, p_acl );
1246     for( i = 0; i < HTTPD_MSG_MAX; i++ )
1247     {
1248         url->catch[i].cb = NULL;
1249         url->catch[i].p_sys = NULL;
1250     }
1251
1252     TAB_APPEND( host->i_url, host->url, url );
1253     vlc_mutex_unlock( &host->lock );
1254
1255     return url;
1256 }
1257
1258 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
1259                            const char *psz_user, const char *psz_password,
1260                            const vlc_acl_t *p_acl )
1261 {
1262     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1263                                 psz_password, p_acl, VLC_FALSE );
1264 }
1265
1266 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
1267                                  const char *psz_user, const char *psz_password,
1268                                  const vlc_acl_t *p_acl )
1269 {
1270     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1271                                 psz_password, p_acl, VLC_TRUE );
1272 }
1273
1274 /* register callback on a url */
1275 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1276                     httpd_callback_sys_t *p_sys )
1277 {
1278     vlc_mutex_lock( &url->lock );
1279     url->catch[i_msg].cb   = cb;
1280     url->catch[i_msg].p_sys= p_sys;
1281     vlc_mutex_unlock( &url->lock );
1282
1283     return VLC_SUCCESS;
1284 }
1285
1286 /* delete an url */
1287 void httpd_UrlDelete( httpd_url_t *url )
1288 {
1289     httpd_host_t *host = url->host;
1290     int          i;
1291
1292     vlc_mutex_lock( &host->lock );
1293     TAB_REMOVE( host->i_url, host->url, url );
1294
1295     vlc_mutex_destroy( &url->lock );
1296     free( url->psz_url );
1297     free( url->psz_user );
1298     free( url->psz_password );
1299     ACL_Destroy( url->p_acl );
1300
1301     for( i = 0; i < host->i_client; i++ )
1302     {
1303         httpd_client_t *client = host->client[i];
1304
1305         if( client->url == url )
1306         {
1307             /* TODO complete it */
1308             msg_Warn( host, "force closing connections" );
1309             httpd_ClientClean( client );
1310             TAB_REMOVE( host->i_client, host->client, client );
1311             free( client );
1312             i--;
1313         }
1314     }
1315     free( url );
1316     vlc_mutex_unlock( &host->lock );
1317 }
1318
1319 void httpd_MsgInit( httpd_message_t *msg )
1320 {
1321     msg->cl         = NULL;
1322     msg->i_type     = HTTPD_MSG_NONE;
1323     msg->i_proto    = HTTPD_PROTO_NONE;
1324     msg->i_version  = -1; /* FIXME */
1325
1326     msg->i_status   = 0;
1327
1328     msg->psz_url    = NULL;
1329     msg->psz_args   = NULL;
1330
1331     msg->i_channel  = -1;
1332
1333     msg->i_name     = 0;
1334     msg->name       = NULL;
1335     msg->i_value    = 0;
1336     msg->value      = NULL;
1337
1338     msg->i_body_offset = 0;
1339     msg->i_body        = 0;
1340     msg->p_body        = NULL;
1341 }
1342
1343 void httpd_MsgClean( httpd_message_t *msg )
1344 {
1345     int i;
1346
1347     free( msg->psz_url );
1348     free( msg->psz_args );
1349     for( i = 0; i < msg->i_name; i++ )
1350     {
1351         free( msg->name[i] );
1352         free( msg->value[i] );
1353     }
1354     free( msg->name );
1355     free( msg->value );
1356     free( msg->p_body );
1357     httpd_MsgInit( msg );
1358 }
1359
1360 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
1361 {
1362     int i;
1363
1364     for( i = 0; i < msg->i_name; i++ )
1365     {
1366         if( !strcasecmp( msg->name[i], name ))
1367         {
1368             return msg->value[i];
1369         }
1370     }
1371     return NULL;
1372 }
1373
1374 void httpd_MsgAdd( httpd_message_t *msg, const char *name, const char *psz_value, ... )
1375 {
1376     va_list args;
1377     char *value = NULL;
1378
1379     va_start( args, psz_value );
1380     if( vasprintf( &value, psz_value, args ) == -1 )
1381         value = NULL;
1382     va_end( args );
1383
1384     if( value == NULL )
1385         return;
1386
1387     name = strdup( name );
1388     if( name == NULL )
1389     {
1390         free( value );
1391         return;
1392     }
1393
1394     TAB_APPEND( msg->i_name,  msg->name,  (char*)name );
1395     TAB_APPEND( msg->i_value, msg->value, value );
1396 }
1397
1398 static void httpd_ClientInit( httpd_client_t *cl, mtime_t now )
1399 {
1400     cl->i_state = HTTPD_CLIENT_RECEIVING;
1401     cl->i_activity_date = now;
1402     cl->i_activity_timeout = I64C(10000000);
1403     cl->i_buffer_size = HTTPD_CL_BUFSIZE;
1404     cl->i_buffer = 0;
1405     cl->p_buffer = malloc( cl->i_buffer_size );
1406     cl->i_mode   = HTTPD_CLIENT_FILE;
1407     cl->b_read_waiting = VLC_FALSE;
1408
1409     httpd_MsgInit( &cl->query );
1410     httpd_MsgInit( &cl->answer );
1411 }
1412
1413 void httpd_ClientModeStream( httpd_client_t *cl )
1414 {
1415     cl->i_mode   = HTTPD_CLIENT_STREAM;
1416 }
1417
1418 void httpd_ClientModeBidir( httpd_client_t *cl )
1419 {
1420     cl->i_mode   = HTTPD_CLIENT_BIDIR;
1421 }
1422
1423 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
1424 {
1425     return net_GetPeerAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1426 }
1427
1428 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
1429 {
1430     return net_GetSockAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1431 }
1432
1433 static void httpd_ClientClean( httpd_client_t *cl )
1434 {
1435     if( cl->fd >= 0 )
1436     {
1437         if( cl->p_tls != NULL )
1438             tls_ServerSessionClose( cl->p_tls );
1439         net_Close( cl->fd );
1440         cl->fd = -1;
1441     }
1442
1443     httpd_MsgClean( &cl->answer );
1444     httpd_MsgClean( &cl->query );
1445
1446     free( cl->p_buffer );
1447     cl->p_buffer = NULL;
1448 }
1449
1450 static httpd_client_t *httpd_ClientNew( int fd, tls_session_t *p_tls, mtime_t now )
1451 {
1452     httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1453
1454     if( !cl ) return NULL;
1455
1456     cl->i_ref   = 0;
1457     cl->fd      = fd;
1458     cl->url     = NULL;
1459     cl->p_tls = p_tls;
1460
1461     httpd_ClientInit( cl, now );
1462
1463     return cl;
1464 }
1465
1466 static int httpd_NetRecv( httpd_client_t *cl, uint8_t *p, int i_len )
1467 {
1468     tls_session_t *p_tls;
1469
1470     p_tls = cl->p_tls;
1471     if( p_tls != NULL)
1472         return tls_Recv( p_tls, p, i_len );
1473
1474     return recv( cl->fd, p, i_len, 0 );
1475 }
1476
1477 static int httpd_NetSend( httpd_client_t *cl, const uint8_t *p, int i_len )
1478 {
1479     tls_session_t *p_tls;
1480
1481     p_tls = cl->p_tls;
1482     if( p_tls != NULL)
1483         return tls_Send( p_tls, p, i_len );
1484
1485     return send( cl->fd, p, i_len, 0 );
1486 }
1487
1488
1489 static const struct
1490 {
1491     const char name[16];
1492     int  i_type;
1493     int  i_proto;
1494 }
1495 msg_type[] =
1496 {
1497     { "OPTIONS",       HTTPD_MSG_OPTIONS,      HTTPD_PROTO_RTSP },
1498     { "DESCRIBE",      HTTPD_MSG_DESCRIBE,     HTTPD_PROTO_RTSP },
1499     { "SETUP",         HTTPD_MSG_SETUP,        HTTPD_PROTO_RTSP },
1500     { "PLAY",          HTTPD_MSG_PLAY,         HTTPD_PROTO_RTSP },
1501     { "PAUSE",         HTTPD_MSG_PAUSE,        HTTPD_PROTO_RTSP },
1502     { "GET_PARAMETER", HTTPD_MSG_GETPARAMETER, HTTPD_PROTO_RTSP },
1503     { "TEARDOWN",      HTTPD_MSG_TEARDOWN,     HTTPD_PROTO_RTSP },
1504     { "GET",           HTTPD_MSG_GET,          HTTPD_PROTO_HTTP },
1505     { "HEAD",          HTTPD_MSG_HEAD,         HTTPD_PROTO_HTTP },
1506     { "POST",          HTTPD_MSG_POST,         HTTPD_PROTO_HTTP },
1507     { "",              HTTPD_MSG_NONE,         HTTPD_PROTO_NONE }
1508 };
1509
1510
1511 static void httpd_ClientRecv( httpd_client_t *cl )
1512 {
1513     int i_len;
1514
1515     /* ignore leading whites */
1516     if( ( cl->query.i_proto == HTTPD_PROTO_NONE ) &&
1517         ( cl->i_buffer == 0 ) )
1518     {
1519         unsigned char c;
1520
1521         i_len = httpd_NetRecv( cl, &c, 1 );
1522
1523         if( ( i_len > 0 ) && ( strchr( "\r\n\t ", c ) == NULL ) )
1524         {
1525             cl->p_buffer[0] = c;
1526             cl->i_buffer++;
1527         }
1528     }
1529     else
1530     if( cl->query.i_proto == HTTPD_PROTO_NONE )
1531     {
1532         /* enough to see if it's Interleaved RTP over RTSP or RTSP/HTTP */
1533         i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
1534                                7 - cl->i_buffer );
1535         if( i_len > 0 )
1536         {
1537             cl->i_buffer += i_len;
1538         }
1539
1540         if( ( cl->i_buffer >= 4 ) && ( cl->p_buffer[0] == '$' ) )
1541         {
1542             /* Interleaved RTP over RTSP */
1543             cl->query.i_proto = HTTPD_PROTO_RTSP;
1544             cl->query.i_type  = HTTPD_MSG_CHANNEL;
1545             cl->query.i_channel = cl->p_buffer[1];
1546             cl->query.i_body  = (cl->p_buffer[2] << 8)|cl->p_buffer[3];
1547             cl->query.p_body  = malloc( cl->query.i_body );
1548             cl->i_buffer      -= 4;
1549             memcpy( cl->query.p_body, cl->p_buffer + 4, cl->i_buffer );
1550         }
1551         else
1552         /* The smallest legal request is 7 bytes ("GET /\r\n"),
1553          * this is the maximum we can ask at this point. */
1554         if( cl->i_buffer >= 7 )
1555         {
1556             if( !memcmp( cl->p_buffer, "HTTP/1.", 7 ) )
1557             {
1558                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1559                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1560             }
1561             else if( !memcmp( cl->p_buffer, "RTSP/1.", 7 ) )
1562             {
1563                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1564                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1565             }
1566             else
1567             {
1568                 /* We need the full request line to determine the protocol. */
1569                 cl->query.i_proto = HTTPD_PROTO_HTTP0;
1570                 cl->query.i_type  = HTTPD_MSG_NONE;
1571             }
1572         }
1573     }
1574     else if( cl->query.i_body > 0 )
1575     {
1576         /* we are reading the body of a request or a channel */
1577         i_len = httpd_NetRecv( cl, &cl->query.p_body[cl->i_buffer],
1578                                cl->query.i_body - cl->i_buffer );
1579         if( i_len > 0 )
1580         {
1581             cl->i_buffer += i_len;
1582         }
1583         if( cl->i_buffer >= cl->query.i_body )
1584         {
1585             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1586         }
1587     }
1588     else
1589     {
1590         /* we are reading a header -> char by char */
1591         for( ;; )
1592         {
1593             if( cl->i_buffer == cl->i_buffer_size )
1594             {
1595                 uint8_t *newbuf = realloc( cl->p_buffer, cl->i_buffer_size + 1024 );
1596                 if( newbuf == NULL )
1597                 {
1598                     i_len = 0;
1599                     break;
1600                 }
1601
1602                 cl->p_buffer = newbuf;
1603                 cl->i_buffer_size += 1024;
1604             }
1605
1606             i_len = httpd_NetRecv (cl, &cl->p_buffer[cl->i_buffer], 1 );
1607             if( i_len <= 0 )
1608             {
1609                 break;
1610             }
1611             cl->i_buffer++;
1612
1613             if( ( cl->query.i_proto == HTTPD_PROTO_HTTP0 )
1614              && ( cl->p_buffer[cl->i_buffer - 1] == '\n' ) )
1615             {
1616                 /* Request line is now complete */
1617                 const char *p = memchr( cl->p_buffer, ' ', cl->i_buffer );
1618                 size_t len;
1619
1620                 assert( cl->query.i_type == HTTPD_MSG_NONE );
1621
1622                 if( p == NULL ) /* no URI: evil guy */
1623                 {
1624                     i_len = 0; /* drop connection */
1625                     break;
1626                 }
1627
1628                 do
1629                     p++; /* skips extra spaces */
1630                 while( *p == ' ' );
1631
1632                 p = memchr( p, ' ', ((char *)cl->p_buffer) + cl->i_buffer - p );
1633                 if( p == NULL ) /* no explicit protocol: HTTP/0.9 */
1634                 {
1635                     i_len = 0; /* not supported currently -> drop */
1636                     break;
1637                 }
1638
1639                 do
1640                     p++; /* skips extra spaces ever again */
1641                 while( *p == ' ' );
1642
1643                 len = ((char *)cl->p_buffer) + cl->i_buffer - p;
1644                 if( len < 7 ) /* foreign protocol */
1645                     i_len = 0; /* I don't understand -> drop */
1646                 else
1647                 if( memcmp( p, "HTTP/1.", 7 ) == 0 )
1648                 {
1649                     cl->query.i_proto = HTTPD_PROTO_HTTP;
1650                     cl->query.i_version = atoi( p + 7 );
1651                 }
1652                 else
1653                 if( memcmp( p, "RTSP/1.", 7 ) == 0 )
1654                 {
1655                     cl->query.i_proto = HTTPD_PROTO_RTSP;
1656                     cl->query.i_version = atoi( p + 7 );
1657                 }
1658                 else
1659                 if( memcmp( p, "HTTP/", 5 ) == 0 )
1660                 {
1661                     const uint8_t sorry[] =
1662                        "HTTP/1.1 505 Unknown HTTP version\r\n\r\n";
1663                     httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1664                     i_len = 0; /* drop */
1665                 }
1666                 else
1667                 if( memcmp( p, "RTSP/", 5 ) == 0 )
1668                 {
1669                     const uint8_t sorry[] =
1670                         "RTSP/1.0 505 Unknown RTSP version\r\n\r\n";
1671                     httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1672                     i_len = 0; /* drop */
1673                 }
1674                 else /* yet another foreign protocol */
1675                     i_len = 0;
1676
1677                 if( i_len == 0 )
1678                     break;
1679             }
1680
1681             if( ( cl->i_buffer >= 2 && !memcmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1682                 ( cl->i_buffer >= 4 && !memcmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1683             {
1684                 char *p;
1685
1686                 /* we have finished the header so parse it and set i_body */
1687                 cl->p_buffer[cl->i_buffer] = '\0';
1688
1689                 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1690                 {
1691                     /* FIXME:
1692                      * assume strlen( "HTTP/1.x" ) = 8
1693                      */
1694                     cl->query.i_status =
1695                         strtol( (char *)&cl->p_buffer[8],
1696                                 &p, 0 );
1697                     while( *p == ' ' )
1698                         p++;
1699                 }
1700                 else
1701                 {
1702                     unsigned i;
1703
1704                     p = NULL;
1705                     cl->query.i_type = HTTPD_MSG_NONE;
1706
1707                     /*fprintf( stderr, "received new request=%s\n", cl->p_buffer);*/
1708
1709                     for( i = 0; msg_type[i].name[0]; i++ )
1710                     {
1711                         if( !strncmp( (char *)cl->p_buffer, msg_type[i].name,
1712                                       strlen( msg_type[i].name ) ) )
1713                         {
1714                             p = (char *)&cl->p_buffer[strlen(msg_type[i].name) + 1 ];
1715                             cl->query.i_type = msg_type[i].i_type;
1716                             if( cl->query.i_proto != msg_type[i].i_proto )
1717                             {
1718                                 p = NULL;
1719                                 cl->query.i_proto = HTTPD_PROTO_NONE;
1720                                 cl->query.i_type = HTTPD_MSG_NONE;
1721                             }
1722                             break;
1723                         }
1724                     }
1725                     if( p == NULL )
1726                     {
1727                         if( strstr( (char *)cl->p_buffer, "HTTP/1." ) )
1728                         {
1729                             cl->query.i_proto = HTTPD_PROTO_HTTP;
1730                         }
1731                         else if( strstr( (char *)cl->p_buffer, "RTSP/1." ) )
1732                         {
1733                             cl->query.i_proto = HTTPD_PROTO_RTSP;
1734                         }
1735                     }
1736                     else
1737                     {
1738                         char *p2;
1739                         char *p3;
1740
1741                         while( *p == ' ' )
1742                         {
1743                             p++;
1744                         }
1745                         p2 = strchr( p, ' ' );
1746                         if( p2 )
1747                         {
1748                             *p2++ = '\0';
1749                         }
1750                         if( !strncasecmp( p, "rtsp:", 5 ) )
1751                         {
1752                             /* for rtsp url, you have rtsp://localhost:port/path */
1753                             p += 5;
1754                             while( *p == '/' ) p++;
1755                             while( *p && *p != '/' ) p++;
1756                         }
1757                         cl->query.psz_url = strdup( p );
1758                         if( ( p3 = strchr( cl->query.psz_url, '?' ) )  )
1759                         {
1760                             *p3++ = '\0';
1761                             cl->query.psz_args = (uint8_t *)strdup( p3 );
1762                         }
1763                         p = p2;
1764                     }
1765                 }
1766                 if( p )
1767                 {
1768                     p = strchr( p, '\n' );
1769                 }
1770                 if( p )
1771                 {
1772                     while( *p == '\n' || *p == '\r' )
1773                     {
1774                         p++;
1775                     }
1776                     while( p && *p != '\0' )
1777                     {
1778                         char *line = p;
1779                         char *eol = p = strchr( p, '\n' );
1780                         char *colon;
1781
1782                         while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1783                         {
1784                             *eol-- = '\0';
1785                         }
1786
1787                         if( ( colon = strchr( line, ':' ) ) )
1788                         {
1789                             char *name;
1790                             char *value;
1791
1792                             *colon++ = '\0';
1793                             while( *colon == ' ' )
1794                             {
1795                                 colon++;
1796                             }
1797                             name = strdup( line );
1798                             value = strdup( colon );
1799
1800                             TAB_APPEND( cl->query.i_name, cl->query.name, name );
1801                             TAB_APPEND( cl->query.i_value,cl->query.value,value);
1802
1803                             if( !strcasecmp( name, "Content-Length" ) )
1804                             {
1805                                 cl->query.i_body = atol( value );
1806                             }
1807                         }
1808
1809                         if( p )
1810                         {
1811                             p++;
1812                             while( *p == '\n' || *p == '\r' )
1813                             {
1814                                 p++;
1815                             }
1816                         }
1817                     }
1818                 }
1819                 if( cl->query.i_body > 0 )
1820                 {
1821                     /* TODO Mhh, handle the case client will only send a
1822                      * request and close the connection
1823                      * to mark and of body (probably only RTSP) */
1824                     cl->query.p_body = malloc( cl->query.i_body );
1825                     cl->i_buffer = 0;
1826                 }
1827                 else
1828                 {
1829                     cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1830                 }
1831             }
1832         }
1833     }
1834
1835     /* check if the client is to be set to dead */
1836 #if defined( WIN32 ) || defined( UNDER_CE )
1837     if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1838 #else
1839     if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1840 #endif
1841     {
1842         if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1843         {
1844             /* connection closed -> end of data */
1845             if( cl->query.i_body > 0 )
1846             {
1847                 cl->query.i_body = cl->i_buffer;
1848             }
1849             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1850         }
1851         else
1852         {
1853             cl->i_state = HTTPD_CLIENT_DEAD;
1854         }
1855     }
1856
1857     /* XXX: for QT I have to disable timeout. Try to find why */
1858     if( cl->query.i_proto == HTTPD_PROTO_RTSP )
1859         cl->i_activity_timeout = 0;
1860
1861 #if 0 /* Debugging only */
1862     if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1863     {
1864         int i;
1865
1866         fprintf( stderr, "received new request\n" );
1867         fprintf( stderr, "  - proto=%s\n",
1868                  cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1869         fprintf( stderr, "  - version=%d\n", cl->query.i_version );
1870         fprintf( stderr, "  - msg=%d\n", cl->query.i_type );
1871         if( cl->query.i_type == HTTPD_MSG_ANSWER )
1872         {
1873             fprintf( stderr, "  - answer=%d '%s'\n", cl->query.i_status,
1874                      cl->query.psz_status );
1875         }
1876         else if( cl->query.i_type != HTTPD_MSG_NONE )
1877         {
1878             fprintf( stderr, "  - url=%s\n", cl->query.psz_url );
1879         }
1880         for( i = 0; i < cl->query.i_name; i++ )
1881         {
1882             fprintf( stderr, "  - option name='%s' value='%s'\n",
1883                      cl->query.name[i], cl->query.value[i] );
1884         }
1885     }
1886 #endif
1887 }
1888
1889 static void httpd_ClientSend( httpd_client_t *cl )
1890 {
1891     int i;
1892     int i_len;
1893
1894     if( cl->i_buffer < 0 )
1895     {
1896         /* We need to create the header */
1897         int i_size = 0;
1898         char *p;
1899         const char *psz_status = httpd_ReasonFromCode( cl->answer.i_status );
1900
1901         i_size = strlen( "HTTP/1.") + 10 + 10 + strlen( psz_status ) + 5;
1902         for( i = 0; i < cl->answer.i_name; i++ )
1903         {
1904             i_size += strlen( cl->answer.name[i] ) + 2 +
1905                       strlen( cl->answer.value[i] ) + 2;
1906         }
1907
1908         if( cl->i_buffer_size < i_size )
1909         {
1910             cl->i_buffer_size = i_size;
1911             free( cl->p_buffer );
1912             cl->p_buffer = malloc( i_size );
1913         }
1914         p = (char *)cl->p_buffer;
1915
1916         p += sprintf( p, "%s.%u %d %s\r\n",
1917                       cl->answer.i_proto ==  HTTPD_PROTO_HTTP ? "HTTP/1" : "RTSP/1",
1918                       cl->answer.i_version,
1919                       cl->answer.i_status, psz_status );
1920         for( i = 0; i < cl->answer.i_name; i++ )
1921         {
1922             p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1923                           cl->answer.value[i] );
1924         }
1925         p += sprintf( p, "\r\n" );
1926
1927         cl->i_buffer = 0;
1928         cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1929
1930         /*fprintf( stderr, "sending answer\n" );
1931         fprintf( stderr, "%s",  cl->p_buffer );*/
1932     }
1933
1934     i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
1935                            cl->i_buffer_size - cl->i_buffer );
1936     if( i_len >= 0 )
1937     {
1938         cl->i_buffer += i_len;
1939
1940         if( cl->i_buffer >= cl->i_buffer_size )
1941         {
1942             if( cl->answer.i_body == 0  && cl->answer.i_body_offset > 0 &&
1943                 !cl->b_read_waiting )
1944             {
1945                 /* catch more body data */
1946                 int     i_msg = cl->query.i_type;
1947                 int64_t i_offset = cl->answer.i_body_offset;
1948
1949                 httpd_MsgClean( &cl->answer );
1950                 cl->answer.i_body_offset = i_offset;
1951
1952                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1953                                           &cl->answer, &cl->query );
1954             }
1955
1956             if( cl->answer.i_body > 0 )
1957             {
1958                 /* send the body data */
1959                 free( cl->p_buffer );
1960                 cl->p_buffer = cl->answer.p_body;
1961                 cl->i_buffer_size = cl->answer.i_body;
1962                 cl->i_buffer = 0;
1963
1964                 cl->answer.i_body = 0;
1965                 cl->answer.p_body = NULL;
1966             }
1967             else
1968             {
1969                 /* send finished */
1970                 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1971             }
1972         }
1973     }
1974     else
1975     {
1976 #if defined( WIN32 ) || defined( UNDER_CE )
1977         if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1978 #else
1979         if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1980 #endif
1981         {
1982             /* error */
1983             cl->i_state = HTTPD_CLIENT_DEAD;
1984         }
1985     }
1986 }
1987
1988 static void httpd_ClientTlsHsIn( httpd_client_t *cl )
1989 {
1990     switch( tls_SessionContinueHandshake( cl->p_tls ) )
1991     {
1992         case 0:
1993             cl->i_state = HTTPD_CLIENT_RECEIVING;
1994             break;
1995
1996         case -1:
1997             cl->i_state = HTTPD_CLIENT_DEAD;
1998             cl->p_tls = NULL;
1999             break;
2000
2001         case 2:
2002             cl->i_state = HTTPD_CLIENT_TLS_HS_OUT;
2003     }
2004 }
2005
2006 static void httpd_ClientTlsHsOut( httpd_client_t *cl )
2007 {
2008     switch( tls_SessionContinueHandshake( cl->p_tls ) )
2009     {
2010         case 0:
2011             cl->i_state = HTTPD_CLIENT_RECEIVING;
2012             break;
2013
2014         case -1:
2015             cl->i_state = HTTPD_CLIENT_DEAD;
2016             cl->p_tls = NULL;
2017             break;
2018
2019         case 1:
2020             cl->i_state = HTTPD_CLIENT_TLS_HS_IN;
2021             break;
2022     }
2023 }
2024
2025 static void httpd_HostThread( httpd_host_t *host )
2026 {
2027     tls_session_t *p_tls = NULL;
2028     counter_t *p_total_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2029     counter_t *p_active_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2030     int evfd;
2031     vlc_bool_t b_die;
2032
2033     vlc_object_lock( host );
2034     evfd = vlc_object_waitpipe( VLC_OBJECT( host ) );
2035     b_die = !vlc_object_alive( host );
2036     vlc_object_unlock( host );
2037
2038     while( !b_die )
2039     {
2040         if( host->i_url <= 0 )
2041         {
2042             /* 0.2s (FIXME: use a condition variable) */
2043             msleep( 200000 );
2044             continue;
2045         }
2046
2047         /* prepare a new TLS session */
2048         if( ( p_tls == NULL ) && ( host->p_tls != NULL ) )
2049             p_tls = tls_ServerSessionPrepare( host->p_tls );
2050
2051         struct pollfd ufd[host->nfd + host->i_client + 1];
2052         unsigned nfd;
2053         for( nfd = 0; nfd < host->nfd; nfd++ )
2054         {
2055             ufd[nfd].fd = host->fds[nfd];
2056             ufd[nfd].events = POLLIN;
2057             ufd[nfd].revents = 0;
2058         }
2059
2060         /* add all socket that should be read/write and close dead connection */
2061         vlc_mutex_lock( &host->lock );
2062         mtime_t now = mdate();
2063         vlc_bool_t b_low_delay = VLC_FALSE;
2064
2065         for(int i_client = 0; i_client < host->i_client; i_client++ )
2066         {
2067             httpd_client_t *cl = host->client[i_client];
2068             if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
2069                 ( cl->i_state == HTTPD_CLIENT_DEAD ||
2070                   ( cl->i_activity_timeout > 0 &&
2071                     cl->i_activity_date+cl->i_activity_timeout < now) ) ) )
2072             {
2073                 httpd_ClientClean( cl );
2074                 stats_UpdateInteger( host, p_active_counter, -1, NULL );
2075                 TAB_REMOVE( host->i_client, host->client, cl );
2076                 free( cl );
2077                 i_client--;
2078                 continue;
2079             }
2080
2081             struct pollfd *pufd = ufd + nfd;
2082             assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
2083
2084             pufd->fd = cl->fd;
2085             pufd->events = pufd->revents = 0;
2086
2087             if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
2088                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
2089             {
2090                 pufd->events = POLLIN;
2091             }
2092             else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
2093                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
2094             {
2095                 pufd->events = POLLOUT;
2096             }
2097             else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
2098             {
2099                 httpd_message_t *answer = &cl->answer;
2100                 httpd_message_t *query  = &cl->query;
2101                 int i_msg = query->i_type;
2102
2103                 httpd_MsgInit( answer );
2104
2105                 /* Handle what we received */
2106                 if( (cl->i_mode != HTTPD_CLIENT_BIDIR) &&
2107                     (i_msg == HTTPD_MSG_ANSWER || i_msg == HTTPD_MSG_CHANNEL) )
2108                 {
2109                     /* we can only receive request from client when not
2110                      * in BIDIR mode */
2111                     cl->url     = NULL;
2112                     cl->i_state = HTTPD_CLIENT_DEAD;
2113                 }
2114                 else if( i_msg == HTTPD_MSG_ANSWER )
2115                 {
2116                     /* We are in BIDIR mode, trigger the callback and then
2117                      * check for new data */
2118                     if( cl->url && cl->url->catch[i_msg].cb )
2119                     {
2120                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2121                                                   cl, NULL, query );
2122                     }
2123                     cl->i_state = HTTPD_CLIENT_WAITING;
2124                 }
2125                 else if( i_msg == HTTPD_MSG_CHANNEL )
2126                 {
2127                     /* We are in BIDIR mode, trigger the callback and then
2128                      * check for new data */
2129                     if( cl->url && cl->url->catch[i_msg].cb )
2130                     {
2131                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2132                                                   cl, NULL, query );
2133                     }
2134                     cl->i_state = HTTPD_CLIENT_WAITING;
2135                 }
2136                 else if( i_msg == HTTPD_MSG_OPTIONS )
2137                 {
2138
2139                     answer->i_type   = HTTPD_MSG_ANSWER;
2140                     answer->i_proto  = query->i_proto;
2141                     answer->i_status = 200;
2142                     answer->i_body = 0;
2143                     answer->p_body = NULL;
2144
2145                     httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING );
2146                     httpd_MsgAdd( answer, "Content-Length", "0" );
2147
2148                     switch( query->i_proto )
2149                     {
2150                         case HTTPD_PROTO_HTTP:
2151                             answer->i_version = 1;
2152                             httpd_MsgAdd( answer, "Allow",
2153                                           "GET,HEAD,POST,OPTIONS" );
2154                             break;
2155
2156                         case HTTPD_PROTO_RTSP:
2157                         {
2158                             const char *p;
2159                             answer->i_version = 0;
2160
2161                             p = httpd_MsgGet( query, "Cseq" );
2162                             if( p != NULL )
2163                                 httpd_MsgAdd( answer, "Cseq", "%s", p );
2164                             p = httpd_MsgGet( query, "Timestamp" );
2165                             if( p != NULL )
2166                                 httpd_MsgAdd( answer, "Timestamp", "%s", p );
2167
2168                             p = httpd_MsgGet( query, "Require" );
2169                             if( p != NULL )
2170                             {
2171                                 answer->i_status = 551;
2172                                 httpd_MsgAdd( query, "Unsupported", "%s", p );
2173                             }
2174
2175                             httpd_MsgAdd( answer, "Public", "DESCRIBE,SETUP,"
2176                                           "TEARDOWN,PLAY,PAUSE,GET_PARAMETER" );
2177                             break;
2178                         }
2179                     }
2180
2181                     cl->i_buffer = -1;  /* Force the creation of the answer in
2182                                          * httpd_ClientSend */
2183                     cl->i_state = HTTPD_CLIENT_SENDING;
2184                 }
2185                 else if( i_msg == HTTPD_MSG_NONE )
2186                 {
2187                     if( query->i_proto == HTTPD_PROTO_NONE )
2188                     {
2189                         cl->url = NULL;
2190                         cl->i_state = HTTPD_CLIENT_DEAD;
2191                     }
2192                     else
2193                     {
2194                         char *p;
2195
2196                         /* unimplemented */
2197                         answer->i_proto  = query->i_proto ;
2198                         answer->i_type   = HTTPD_MSG_ANSWER;
2199                         answer->i_version= 0;
2200                         answer->i_status = 501;
2201
2202                         answer->i_body = httpd_HtmlError (&p, 501, NULL);
2203                         answer->p_body = (uint8_t *)p;
2204                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2205
2206                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2207                         cl->i_state = HTTPD_CLIENT_SENDING;
2208                     }
2209                 }
2210                 else
2211                 {
2212                     vlc_bool_t b_auth_failed = VLC_FALSE;
2213                     vlc_bool_t b_hosts_failed = VLC_FALSE;
2214
2215                     /* Search the url and trigger callbacks */
2216                     for(int i = 0; i < host->i_url; i++ )
2217                     {
2218                         httpd_url_t *url = host->url[i];
2219
2220                         if( !strcmp( url->psz_url, query->psz_url ) )
2221                         {
2222                             if( url->catch[i_msg].cb )
2223                             {
2224                                 if( answer && ( url->p_acl != NULL ) )
2225                                 {
2226                                     char ip[NI_MAXNUMERICHOST];
2227
2228                                     if( ( httpd_ClientIP( cl, ip ) == NULL )
2229                                      || ACL_Check( url->p_acl, ip ) )
2230                                     {
2231                                         b_hosts_failed = VLC_TRUE;
2232                                         break;
2233                                     }
2234                                 }
2235
2236                                 if( answer && ( *url->psz_user || *url->psz_password ) )
2237                                 {
2238                                     /* create the headers */
2239                                     const char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
2240                                     char *user = NULL, *pass = NULL;
2241
2242                                     if( b64 != NULL
2243                                      && !strncasecmp( b64, "BASIC", 5 ) )
2244                                     {
2245                                         b64 += 5;
2246                                         while( *b64 == ' ' )
2247                                             b64++;
2248
2249                                         user = vlc_b64_decode( b64 );
2250                                         if (user != NULL)
2251                                         {
2252                                             pass = strchr (user, ':');
2253                                             if (pass != NULL)
2254                                                 *pass++ = '\0';
2255                                         }
2256                                     }
2257
2258                                     if ((user == NULL) || (pass == NULL)
2259                                      || strcmp (user, url->psz_user)
2260                                      || strcmp (pass, url->psz_password))
2261                                     {
2262                                         httpd_MsgAdd( answer,
2263                                                       "WWW-Authenticate",
2264                                                       "Basic realm=\"%s\"",
2265                                                       url->psz_user );
2266                                         /* We fail for all url */
2267                                         b_auth_failed = VLC_TRUE;
2268                                         free( user );
2269                                         break;
2270                                     }
2271
2272                                     free( user );
2273                                 }
2274
2275                                 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
2276                                 {
2277                                     if( answer->i_proto == HTTPD_PROTO_NONE )
2278                                     {
2279                                         /* Raw answer from a CGI */
2280                                         cl->i_buffer = cl->i_buffer_size;
2281                                     }
2282                                     else
2283                                         cl->i_buffer = -1;
2284
2285                                     /* only one url can answer */
2286                                     answer = NULL;
2287                                     if( cl->url == NULL )
2288                                     {
2289                                         cl->url = url;
2290                                     }
2291                                 }
2292                             }
2293                         }
2294                     }
2295
2296                     if( answer )
2297                     {
2298                         char *p;
2299
2300                         answer->i_proto  = query->i_proto;
2301                         answer->i_type   = HTTPD_MSG_ANSWER;
2302                         answer->i_version= 0;
2303
2304                         if( b_hosts_failed )
2305                         {
2306                             answer->i_status = 403;
2307                         }
2308                         else if( b_auth_failed )
2309                         {
2310                             answer->i_status = 401;
2311                         }
2312                         else
2313                         {
2314                             /* no url registered */
2315                             answer->i_status = 404;
2316                         }
2317
2318                         answer->i_body = httpd_HtmlError (&p,
2319                                                           answer->i_status,
2320                                                           query->psz_url);
2321                         answer->p_body = (uint8_t *)p;
2322
2323                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2324                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2325                         httpd_MsgAdd( answer, "Content-Type", "%s", "text/html" );
2326                     }
2327
2328                     cl->i_state = HTTPD_CLIENT_SENDING;
2329                 }
2330             }
2331             else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2332             {
2333                 if( cl->i_mode == HTTPD_CLIENT_FILE || cl->answer.i_body_offset == 0 )
2334                 {
2335                     const char *psz_connection = httpd_MsgGet( &cl->answer, "Connection" );
2336                     const char *psz_query = httpd_MsgGet( &cl->query, "Connection" );
2337                     vlc_bool_t b_connection = VLC_FALSE;
2338                     vlc_bool_t b_keepalive = VLC_FALSE;
2339                     vlc_bool_t b_query = VLC_FALSE;
2340
2341                     cl->url = NULL;
2342                     if( psz_connection )
2343                     {
2344                         b_connection = ( strcasecmp( psz_connection, "Close" ) == 0 );
2345                         b_keepalive = ( strcasecmp( psz_connection, "Keep-Alive" ) == 0 );
2346                     }
2347
2348                     if( psz_query )
2349                     {
2350                         b_query = ( strcasecmp( psz_query, "Close" ) == 0 );
2351                     }
2352
2353                     if( ( ( cl->query.i_proto == HTTPD_PROTO_HTTP ) &&
2354                           ( ( cl->answer.i_version == 0 && b_keepalive ) ||
2355                             ( cl->answer.i_version == 1 && !b_connection ) ) ) ||
2356                         ( ( cl->query.i_proto == HTTPD_PROTO_RTSP ) &&
2357                           !b_query && !b_connection ) )
2358                     {
2359                         httpd_MsgClean( &cl->query );
2360                         httpd_MsgInit( &cl->query );
2361
2362                         cl->i_buffer = 0;
2363                         cl->i_buffer_size = 1000;
2364                         free( cl->p_buffer );
2365                         cl->p_buffer = malloc( cl->i_buffer_size );
2366                         cl->i_state = HTTPD_CLIENT_RECEIVING;
2367                     }
2368                     else
2369                     {
2370                         cl->i_state = HTTPD_CLIENT_DEAD;
2371                     }
2372                     httpd_MsgClean( &cl->answer );
2373                 }
2374                 else if( cl->b_read_waiting )
2375                 {
2376                     /* we have a message waiting for us to read it */
2377                     httpd_MsgClean( &cl->answer );
2378                     httpd_MsgClean( &cl->query );
2379
2380                     cl->i_buffer = 0;
2381                     cl->i_buffer_size = 1000;
2382                     free( cl->p_buffer );
2383                     cl->p_buffer = malloc( cl->i_buffer_size );
2384                     cl->i_state = HTTPD_CLIENT_RECEIVING;
2385                     cl->b_read_waiting = VLC_FALSE;
2386                 }
2387                 else
2388                 {
2389                     int64_t i_offset = cl->answer.i_body_offset;
2390                     httpd_MsgClean( &cl->answer );
2391
2392                     cl->answer.i_body_offset = i_offset;
2393                     free( cl->p_buffer );
2394                     cl->p_buffer = NULL;
2395                     cl->i_buffer = 0;
2396                     cl->i_buffer_size = 0;
2397
2398                     cl->i_state = HTTPD_CLIENT_WAITING;
2399                 }
2400             }
2401             else if( cl->i_state == HTTPD_CLIENT_WAITING )
2402             {
2403                 int64_t i_offset = cl->answer.i_body_offset;
2404                 int     i_msg = cl->query.i_type;
2405
2406                 httpd_MsgInit( &cl->answer );
2407                 cl->answer.i_body_offset = i_offset;
2408
2409                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2410                                           &cl->answer, &cl->query );
2411                 if( cl->answer.i_type != HTTPD_MSG_NONE )
2412                 {
2413                     /* we have new data, so re-enter send mode */
2414                     cl->i_buffer      = 0;
2415                     cl->p_buffer      = cl->answer.p_body;
2416                     cl->i_buffer_size = cl->answer.i_body;
2417                     cl->answer.p_body = NULL;
2418                     cl->answer.i_body = 0;
2419                     cl->i_state = HTTPD_CLIENT_SENDING;
2420                 }
2421             }
2422
2423             /* Special for BIDIR mode we also check reading */
2424             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2425                 cl->i_state == HTTPD_CLIENT_SENDING )
2426             {
2427                 pufd->events |= POLLIN;
2428             }
2429
2430             if (pufd->events != 0)
2431                 nfd++;
2432             else
2433                 b_low_delay = VLC_TRUE;
2434         }
2435         vlc_mutex_unlock( &host->lock );
2436
2437         ufd[nfd].fd = evfd;
2438         ufd[nfd].events = POLLIN;
2439         ufd[nfd].revents = 0;
2440         nfd++;
2441
2442         /* we will wait 20ms (not too big) if HTTPD_CLIENT_WAITING */
2443         switch( poll( ufd, nfd, b_low_delay ? 20 : -1) )
2444         {
2445             case -1:
2446                 if (errno != EINTR)
2447                 {
2448                     /* Kernel on low memory or a bug: pace */
2449                     msg_Err( host, "polling error: %m" );
2450                     msleep( 100000 );
2451                 }
2452             case 0:
2453                 continue;
2454         }
2455
2456         vlc_object_lock( host );
2457         if( ufd[nfd - 1].revents )
2458             b_die = vlc_object_wait( host );
2459         vlc_object_unlock( host );
2460
2461         /* Handle client sockets */
2462         vlc_mutex_lock( &host->lock );
2463         now = mdate();
2464         for( int i_client = 0; i_client < host->i_client; i_client++ )
2465         {
2466             httpd_client_t *cl = host->client[i_client];
2467             const struct pollfd *pufd = &ufd[host->nfd + i_client];
2468
2469             assert( pufd < &ufd[sizeof(ufd) / sizeof(ufd[0])] );
2470
2471             if( cl->fd != pufd->fd )
2472                 continue; // we were not waiting for this client
2473             if( pufd->revents == 0 )
2474                 continue; // no event received
2475
2476             cl->i_activity_date = now;
2477
2478             if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2479             {
2480                 httpd_ClientRecv( cl );
2481             }
2482             else if( cl->i_state == HTTPD_CLIENT_SENDING )
2483             {
2484                 httpd_ClientSend( cl );
2485             }
2486             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_IN )
2487             {
2488                 httpd_ClientTlsHsIn( cl );
2489             }
2490             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT )
2491             {
2492                 httpd_ClientTlsHsOut( cl );
2493             }
2494
2495             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2496                 cl->i_state == HTTPD_CLIENT_SENDING &&
2497                 (pufd->revents & POLLIN) )
2498             {
2499                 cl->b_read_waiting = VLC_TRUE;
2500             }
2501         }
2502         vlc_mutex_unlock( &host->lock );
2503
2504         /* Handle server sockets (accept new connections) */
2505         for( nfd = 0; nfd < host->nfd; nfd++ )
2506         {
2507             httpd_client_t *cl;
2508             int i_state = -1;
2509             int fd = ufd[nfd].fd;
2510
2511             assert (fd == host->fds[nfd]);
2512
2513             if( ufd[nfd].revents == 0 )
2514                 continue;
2515
2516             /* */
2517             fd = accept (fd, NULL, NULL);
2518             if (fd == -1)
2519                 continue;
2520
2521             net_SetupSocket (fd);
2522             if( p_tls != NULL )
2523             {
2524                 switch( tls_ServerSessionHandshake( p_tls, fd ) )
2525                 {
2526                     case -1:
2527                         msg_Err( host, "Rejecting TLS connection" );
2528                         net_Close( fd );
2529                         fd = -1;
2530                         p_tls = NULL;
2531                         break;
2532
2533                     case 1: /* missing input - most likely */
2534                         i_state = HTTPD_CLIENT_TLS_HS_IN;
2535                         break;
2536
2537                     case 2: /* missing output */
2538                         i_state = HTTPD_CLIENT_TLS_HS_OUT;
2539                         break;
2540                 }
2541
2542                 if( (p_tls == NULL) != (host->p_tls == NULL) )
2543                     break; // wasted TLS session, cannot accept() anymore
2544             }
2545
2546             stats_UpdateInteger( host, p_total_counter, 1, NULL );
2547             stats_UpdateInteger( host, p_active_counter, 1, NULL );
2548             cl = httpd_ClientNew( fd, p_tls, now );
2549             p_tls = NULL;
2550             vlc_mutex_lock( &host->lock );
2551             TAB_APPEND( host->i_client, host->client, cl );
2552             vlc_mutex_unlock( &host->lock );
2553             if( i_state != -1 )
2554                 cl->i_state = i_state; // override state for TLS
2555
2556             if (host->p_tls != NULL)
2557                 break; // cannot accept further without new TLS session
2558         }
2559
2560     }
2561
2562     if( p_tls != NULL )
2563         tls_ServerSessionClose( p_tls );
2564     if( p_total_counter )
2565         stats_CounterClean( p_total_counter );
2566     if( p_active_counter )
2567         stats_CounterClean( p_active_counter );
2568 }
2569
2570 #else /* ENABLE_HTTPD */
2571
2572 /* We just define an empty wrapper */
2573 httpd_host_t *httpd_TLSHostNew( vlc_object_t *a, const char *b, 
2574                                 int c,
2575                                 const char *e, const char *f,
2576                                 const char *g, const char* h)
2577 {
2578     msg_Err( a, "HTTP daemon support is disabled" );
2579     return NULL;
2580 }
2581
2582 httpd_host_t *httpd_HostNew( vlc_object_t *a, const char *b,
2583                              int c )
2584 {
2585     msg_Err( a, "HTTP daemon support is disabled" );
2586     return NULL;
2587 }
2588
2589 void httpd_HostDelete( httpd_host_t *a )
2590 {
2591 }
2592
2593 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
2594                            const char *psz_user, const char *psz_password,
2595                            const vlc_acl_t *p_acl )
2596 {
2597     return NULL;
2598 }
2599
2600 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
2601                                  const char *psz_user, const char *psz_password,
2602                                  const vlc_acl_t *p_acl )
2603 {
2604     return NULL;
2605 }
2606
2607 int httpd_UrlCatch( httpd_url_t *a, int b, httpd_callback_t c,
2608                     httpd_callback_sys_t *d )
2609 {
2610     return 0;
2611 }
2612
2613 void httpd_UrlDelete( httpd_url_t *a )
2614 {
2615 }
2616
2617 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
2618 {
2619     return NULL;
2620 }
2621
2622 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
2623 {
2624     return NULL;
2625 }
2626
2627 void httpd_ClientModeStream( httpd_client_t *a )
2628 {
2629 }
2630
2631 void httpd_ClientModeBidir( httpd_client_t *a )
2632 {
2633 }
2634
2635 httpd_file_sys_t *httpd_FileDelete( httpd_file_t *file )
2636 {
2637         return NULL;
2638 }
2639
2640 httpd_file_t *httpd_FileNew( httpd_host_t *host,
2641                              const char *psz_url, const char *psz_mime,
2642                              const char *psz_user, const char *psz_password,
2643                              const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
2644                              httpd_file_sys_t *p_sys )
2645 {
2646     return NULL;
2647 }
2648
2649 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
2650                                    const char *psz_user,
2651                                    const char *psz_password,
2652                                    const vlc_acl_t *p_acl,
2653                                    httpd_handler_callback_t pf_fill,
2654                                    httpd_handler_sys_t *p_sys )
2655 {
2656     return NULL;
2657 }
2658
2659 httpd_handler_sys_t *httpd_HandlerDelete( httpd_handler_t *handler )
2660 {
2661         return NULL;
2662 }
2663
2664 void httpd_RedirectDelete( httpd_redirect_t *a )
2665 {
2666 }
2667
2668 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
2669                                      const char *psz_url_src )
2670 {
2671     return NULL;
2672 }
2673
2674 void httpd_StreamDelete( httpd_stream_t *a )
2675 {
2676 }
2677
2678 int httpd_StreamHeader( httpd_stream_t *a, uint8_t *b, int c )
2679 {
2680     return 0;
2681 }
2682
2683 int httpd_StreamSend ( httpd_stream_t *a, uint8_t *b, int c )
2684 {
2685     return 0;
2686 }
2687
2688 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
2689                                  const char *psz_url, const char *psz_mime,
2690                                  const char *psz_user, const char *psz_password,
2691                                  const vlc_acl_t *p_acl )
2692 {
2693     return NULL;
2694 }
2695
2696 void httpd_MsgInit ( httpd_message_t *a )
2697 {
2698 }
2699
2700 void httpd_MsgAdd  ( httpd_message_t *a, const char *b, const char *c, ... )
2701 {
2702 }
2703
2704 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
2705 {
2706     return "";
2707 }
2708
2709 void httpd_MsgClean( httpd_message_t *a )
2710 {
2711 }
2712
2713 #endif /* ENABLE_HTTPD */