git.sesse.net Git - vlc/blob - src/misc/httpd.c

   1 /*****************************************************************************
   2  * httpd.c
   3  *****************************************************************************
   4  * Copyright (C) 2004 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #include <stdlib.h>
  25 #include <vlc/vlc.h>
  26
  27 #include "vlc_httpd.h"
  28
  29 #include <errno.h>
  30 #ifdef HAVE_UNISTD_H
  31 #   include <unistd.h>
  32 #endif
  33 #include <fcntl.h>
  34
  35 #if defined( UNDER_CE )
  36 #   include <winsock.h>
  37 #elif defined( WIN32 )
  38 #   include <winsock2.h>
  39 #   include <ws2tcpip.h>
  40 #   ifndef IN_MULTICAST
  41 #       define IN_MULTICAST(a) IN_CLASSD(a)
  42 #   endif
  43 #else
  44 #   include <netdb.h>                                         /* hostent ... */
  45 #   include <sys/socket.h>
  46 #   include <netinet/in.h>
  47 #   ifdef HAVE_ARPA_INET_H
  48 #       include <arpa/inet.h>                    /* inet_ntoa(), inet_aton() */
  49 #   endif
  50 #endif
  51
  52 #if 0
  53 typedef struct httpd_t          httpd_t;
  54
  55 typedef struct httpd_host_t     httpd_host_t;
  56 typedef struct httpd_url_t      httpd_url_t;
  57 typedef struct httpd_client_t   httpd_client_t;
  58
  59 enum
  60 {
  61     HTTPD_MSG_NONE,
  62
  63     /* answer */
  64     HTTPD_MSG_ANSWER,
  65
  66     /* channel communication */
  67     HTTPD_MSG_CHANNEL,
  68
  69     /* http request */
  70     HTTPD_MSG_GET,
  71     HTTPD_MSG_HEAD,
  72     HTTPD_MSG_POST,
  73
  74     /* rtsp request */
  75     HTTPD_MSG_OPTIONS,
  76     HTTPD_MSG_DESCRIBE,
  77     HTTPD_MSG_SETUP,
  78     HTTPD_MSG_PLAY,
  79     HTTPD_MSG_PAUSE,
  80     HTTPD_MSG_TEARDOWN,
  81
  82     /* just to track the count of MSG */
  83     HTTPD_MSG_MAX
  84 };
  85
  86 enum
  87 {
  88     HTTPD_PROTO_NONE,
  89     HTTPD_PROTO_HTTP,
  90     HTTPD_PROTO_RTSP,
  91 };
  92
  93 typedef struct
  94 {
  95     httpd_client_t *cl; /* NULL if not throught a connection e vlc internal */
  96
  97     int     i_type;
  98     int     i_proto;
  99     int     i_version;
 100
 101     /* for an answer */
 102     int     i_status;
 103     char    *psz_status;
 104
 105     /* for a query */
 106     char    *psz_url;
 107     char    *psz_args;  /* FIXME find a clean way to handle GET(psz_args) and POST(body) through the same code */
 108
 109     /* for rtp over rtsp */
 110     int     i_channel;
 111
 112     /* options */
 113     int     i_name;
 114     char    **name;
 115     int     i_value;
 116     char    **value;
 117
 118     /* body */
 119     int64_t i_body_offset;
 120     int     i_body;
 121     uint8_t *p_body;
 122
 123 } httpd_message_t;
 124
 125 typedef struct httpd_callback_sys_t httpd_callback_sys_t;
 126 /* answer could be null, int this case no answer is requested */
 127 typedef int (*httpd_callback_t)( httpd_callback_sys_t *, httpd_client_t *, httpd_message_t *answer, httpd_message_t *query );
 128
 129
 130 /* create a new host */
 131 httpd_host_t *httpd_HostNew( vlc_object_t *, char *psz_host, int i_port );
 132 /* delete a host */
 133 void          httpd_HostDelete( httpd_host_t * );
 134
 135 /* register a new url */
 136 httpd_url_t *httpd_UrlNew( httpd_host_t *, char *psz_url );
 137 /* register callback on a url */
 138 int          httpd_UrlCatch( httpd_url_t *, int i_msg,
 139                              httpd_callback_t, httpd_callback_sys_t * );
 140 /* delete an url */
 141 void         httpd_UrlDelete( httpd_url_t * );
 142
 143
 144 void httpd_ClientModeStream( httpd_client_t *cl );
 145 void httpd_ClientModeBidir( httpd_client_t *cl );
 146 static void httpd_ClientClean( httpd_client_t *cl );
 147
 148 /* High level */
 149 typedef struct httpd_file_t     httpd_file_t;
 150 typedef struct httpd_file_sys_t httpd_file_sys_t;
 151 typedef int (*httpd_file_callback_t)( httpd_file_sys_t*, httpd_file_t *, uint8_t *psz_request, uint8_t **pp_data, int *pi_data );
 152 httpd_file_t *httpd_FileNew( httpd_host_t *,
 153                              char *psz_url, char *psz_mime,
 154                              char *psz_user, char *psz_password,
 155                              httpd_file_callback_t pf_fill,
 156                              httpd_file_sys_t *p_sys );
 157 void         httpd_FileDelete( httpd_file_t * );
 158
 159 typedef struct httpd_redirect_t httpd_redirect_t;
 160 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *, char *psz_url_dst, char *psz_url_src );
 161 void              httpd_RedirectDelete( httpd_redirect_t * );
 162
 163 #if 0
 164 typedef struct httpd_stream_t httpd_stream_t;
 165 httpd_stream_t *httpd_StreamNew( httpd_host_t * );
 166 int             httpd_StreamHeader( httpd_stream_t *, uint8_t *p_data, int i_data );
 167 int             httpd_StreamSend( httpd_stream_t *, uint8_t *p_data, int i_data );
 168 void            httpd_StreamDelete( httpd_stream_t * );
 169 #endif
 170
 171 /* Msg functions facilities */
 172 void         httpd_MsgInit( httpd_message_t * );
 173 void         httpd_MsgAdd( httpd_message_t *, char *psz_name, char *psz_value, ... );
 174 /* return "" if not found. The string is not allocated */
 175 char        *httpd_MsgGet( httpd_message_t *, char *psz_name );
 176 void         httpd_MsgClean( httpd_message_t * );
 177 #endif
 178
 179 #if 0
 180 struct httpd_t
 181 {
 182     VLC_COMMON_MEMBERS
 183
 184     /* vlc_mutex_t  lock; */
 185     int          i_host;
 186     httpd_host_t **host;
 187 };
 188 #endif
 189
 190 static void httpd_ClientClean( httpd_client_t *cl );
 191
 192 /* each host run in his own thread */
 193 struct httpd_host_t
 194 {
 195     VLC_COMMON_MEMBERS
 196
 197     httpd_t     *httpd;
 198
 199     /* ref count */
 200     int         i_ref;
 201
 202     /* address/port and socket for listening at connections */
 203     struct sockaddr_in sock;
 204     int                fd;
 205
 206     vlc_mutex_t lock;
 207
 208     /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
 209      * This will slow down the url research but make my live easier
 210      * All url will have their cb trigger, but only the first one can answer
 211      * */
 212     int         i_url;
 213     httpd_url_t **url;
 214
 215     int            i_client;
 216     httpd_client_t **client;
 217 };
 218
 219 struct httpd_url_t
 220 {
 221     httpd_host_t *host;
 222
 223     vlc_mutex_t lock;
 224
 225     char    *psz_url;
 226     char    *psz_user;
 227     char    *psz_password;
 228
 229     struct
 230     {
 231         httpd_callback_t     cb;
 232         httpd_callback_sys_t *p_sys;
 233     } catch[HTTPD_MSG_MAX];
 234 };
 235
 236 /* status */
 237 enum
 238 {
 239     HTTPD_CLIENT_RECEIVING,
 240     HTTPD_CLIENT_RECEIVE_DONE,
 241
 242     HTTPD_CLIENT_SENDING,
 243     HTTPD_CLIENT_SEND_DONE,
 244
 245     HTTPD_CLIENT_WAITING,
 246
 247     HTTPD_CLIENT_DEAD,
 248 };
 249 /* mode */
 250 enum
 251 {
 252     HTTPD_CLIENT_FILE,      /* default */
 253     HTTPD_CLIENT_STREAM,    /* regulary get data from cb */
 254     HTTPD_CLIENT_BIDIR,     /* check for reading and get data from cb */
 255 };
 256
 257 struct httpd_client_t
 258 {
 259     httpd_url_t *url;
 260
 261     int     i_ref;
 262
 263     struct  sockaddr_in sock;
 264     int     fd;
 265
 266     int     i_mode;
 267     int     i_state;
 268     int     b_read_waiting; /* stop as soon as possible sending */
 269
 270     mtime_t i_activity_date;
 271     mtime_t i_activity_timeout;
 272
 273     /* buffer for reading header */
 274     int     i_buffer_size;
 275     int     i_buffer;
 276     uint8_t *p_buffer;
 277
 278     /* */
 279     httpd_message_t query;  /* client -> httpd */
 280     httpd_message_t answer; /* httpd -> client */
 281 };
 282
 283
 284 /*****************************************************************************
 285  * Various functions
 286  *****************************************************************************/
 287 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
 288 static void b64_decode( char *dest, char *src )
 289 {
 290     int  i_level;
 291     int  last = 0;
 292     int  b64[256] = {
 293         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
 294         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
 295         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
 296         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
 297         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
 298         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
 299         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
 300         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
 301         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
 302         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
 303         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
 304         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
 305         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
 306         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
 307         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
 308         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
 309         };
 310
 311     for( i_level = 0; *src != '\0'; src++ )
 312     {
 313         int  c;
 314
 315         c = b64[(unsigned int)*src];
 316         if( c == -1 )
 317         {
 318             continue;
 319         }
 320
 321         switch( i_level )
 322         {
 323             case 0:
 324                 i_level++;
 325                 break;
 326             case 1:
 327                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
 328                 i_level++;
 329                 break;
 330             case 2:
 331                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
 332                 i_level++;
 333                 break;
 334             case 3:
 335                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
 336                 i_level = 0;
 337         }
 338         last = c;
 339     }
 340
 341     *dest = '\0';
 342 }
 343
 344 static struct
 345 {
 346     char *psz_ext;
 347     char *psz_mime;
 348 } http_mime[] =
 349 {
 350     { ".htm",   "text/html" },
 351     { ".html",  "text/html" },
 352     { ".txt",   "text/plain" },
 353     { ".xml",   "text/xml" },
 354     { ".dtd",   "text/dtd" },
 355
 356     { ".css",   "text/css" },
 357
 358     /* image mime */
 359     { ".gif",   "image/gif" },
 360     { ".jpe",   "image/jpeg" },
 361     { ".jpg",   "image/jpeg" },
 362     { ".jpeg",  "image/jpeg" },
 363     { ".png",   "image/png" },
 364
 365     /* media mime */
 366     { ".avi",   "video/avi" },
 367     { ".asf",   "video/x-ms-asf" },
 368     { ".m1a",   "audio/mpeg" },
 369     { ".m2a",   "audio/mpeg" },
 370     { ".m1v",   "video/mpeg" },
 371     { ".m2v",   "video/mpeg" },
 372     { ".mp2",   "audio/mpeg" },
 373     { ".mp3",   "audio/mpeg" },
 374     { ".mpa",   "audio/mpeg" },
 375     { ".mpg",   "video/mpeg" },
 376     { ".mpeg",  "video/mpeg" },
 377     { ".mpe",   "video/mpeg" },
 378     { ".mov",   "video/quicktime" },
 379     { ".moov",  "video/quicktime" },
 380     { ".ogg",   "application/ogg" },
 381     { ".ogm",   "application/ogg" },
 382     { ".wav",   "audio/wav" },
 383     { ".wma",   "audio/x-ms-wma" },
 384     { ".wmv",   "video/x-ms-wmv" },
 385
 386
 387     /* end */
 388     { NULL,     NULL }
 389 };
 390 static char *httpd_MimeFromUrl( char *psz_url )
 391 {
 392
 393     char *psz_ext;
 394
 395     psz_ext = strrchr( psz_url, '.' );
 396     if( psz_ext )
 397     {
 398         int i;
 399
 400         for( i = 0; http_mime[i].psz_ext != NULL ; i++ )
 401         {
 402             if( !strcasecmp( http_mime[i].psz_ext, psz_ext ) )
 403             {
 404                 return http_mime[i].psz_mime;
 405             }
 406         }
 407     }
 408     return "application/octet-stream";
 409 }
 410
 411 /*****************************************************************************
 412  * High Level Funtions: httpd_file_t
 413  *****************************************************************************/
 414 struct httpd_file_t
 415 {
 416     httpd_url_t *url;
 417
 418     char *psz_url;
 419     char *psz_mime;
 420
 421     httpd_file_callback_t pf_fill;
 422     httpd_file_sys_t      *p_sys;
 423
 424 };
 425
 426
 427 static int httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl, httpd_message_t *answer, httpd_message_t *query )
 428 {
 429     httpd_file_t *file = (httpd_file_t*)p_sys;
 430
 431     if( answer == NULL || query == NULL )
 432     {
 433         return VLC_SUCCESS;
 434     }
 435     answer->i_proto  = HTTPD_PROTO_HTTP;
 436     answer->i_version= query->i_version;
 437     answer->i_type   = HTTPD_MSG_ANSWER;
 438
 439     answer->i_status = 200;
 440     answer->psz_status = strdup( "OK" );
 441
 442     httpd_MsgAdd( answer, "Content-type",  "%s", file->psz_mime );
 443     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 444
 445     if( query->i_type != HTTPD_MSG_HEAD )
 446     {
 447         char *psz_args = query->psz_args;
 448         if( query->i_type == HTTPD_MSG_POST )
 449         {
 450             /* Check that */
 451             psz_args = query->p_body;
 452         }
 453         file->pf_fill( file->p_sys, file, psz_args, &answer->p_body,
 454                        &answer->i_body );
 455     }
 456     /* We respect client request */
 457     if( strcmp( httpd_MsgGet( &cl->query, "Connection" ), "" ) )
 458     {
 459         httpd_MsgAdd( answer, "Connection",
 460                       httpd_MsgGet( &cl->query, "Connection" ) );
 461     }
 462
 463     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 464
 465     return VLC_SUCCESS;
 466 }
 467
 468
 469 httpd_file_t *httpd_FileNew( httpd_host_t *host,
 470                              char *psz_url, char *psz_mime,
 471                              char *psz_user, char *psz_password,
 472                              httpd_file_callback_t pf_fill,
 473                              httpd_file_sys_t *p_sys )
 474 {
 475     httpd_file_t *file = malloc( sizeof( httpd_file_t ) );
 476
 477     if( ( file->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 478                                           psz_password ) ) == NULL )
 479     {
 480         free( file );
 481         return NULL;
 482     }
 483
 484     file->psz_url  = strdup( psz_url );
 485     if( psz_mime && *psz_mime )
 486     {
 487         file->psz_mime = strdup( psz_mime );
 488     }
 489     else
 490     {
 491         file->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 492     }
 493
 494     file->pf_fill = pf_fill;
 495     file->p_sys   = p_sys;
 496
 497     httpd_UrlCatch( file->url, HTTPD_MSG_HEAD, httpd_FileCallBack,
 498                     (httpd_callback_sys_t*)file );
 499     httpd_UrlCatch( file->url, HTTPD_MSG_GET,  httpd_FileCallBack,
 500                     (httpd_callback_sys_t*)file );
 501     httpd_UrlCatch( file->url, HTTPD_MSG_POST, httpd_FileCallBack,
 502                     (httpd_callback_sys_t*)file );
 503
 504     return file;
 505 }
 506
 507 void httpd_FileDelete( httpd_file_t *file )
 508 {
 509     httpd_UrlDelete( file->url );
 510
 511     free( file->psz_url );
 512     free( file->psz_mime );
 513
 514     free( file );
 515 }
 516
 517 /*****************************************************************************
 518  * High Level Funtions: httpd_redirect_t
 519  *****************************************************************************/
 520 struct httpd_redirect_t
 521 {
 522     httpd_url_t *url;
 523     char        *psz_dst;
 524 };
 525
 526 static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
 527                                    httpd_client_t *cl, httpd_message_t *answer,
 528                                    httpd_message_t *query )
 529 {
 530     httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
 531     uint8_t *p;
 532
 533     if( answer == NULL || query == NULL )
 534     {
 535         return VLC_SUCCESS;
 536     }
 537     answer->i_proto  = query->i_proto;
 538     answer->i_version= query->i_version;
 539     answer->i_type   = HTTPD_MSG_ANSWER;
 540     answer->i_status = 301;
 541     answer->psz_status = strdup( "Moved Permanently" );
 542
 543     p = answer->p_body = malloc( 1000 + strlen( rdir->psz_dst ) );
 544     p += sprintf( p, "<html>\n" );
 545     p += sprintf( p, "<head>\n" );
 546     p += sprintf( p, "<title>Redirection</title>\n" );
 547     p += sprintf( p, "</head>\n" );
 548     p += sprintf( p, "<body>\n" );
 549     p += sprintf( p, "<h1><center>You should be <a href=\"%s\">redirected</a></center></h1>\n", rdir->psz_dst );
 550     p += sprintf( p, "<hr />\n" );
 551     p += sprintf( p, "<a href=\"http://www.videolan.org\">VideoLAN</a>\n" );
 552     p += sprintf( p, "</body>\n" );
 553     p += sprintf( p, "</html>\n" );
 554     answer->i_body = p - answer->p_body;
 555
 556     /* XXX check if it's ok or we need to set an absolute url */
 557     httpd_MsgAdd( answer, "Location",  "%s", rdir->psz_dst );
 558
 559     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 560
 561     return VLC_SUCCESS;
 562 }
 563
 564 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, char *psz_url_dst,
 565                                      char *psz_url_src )
 566 {
 567     httpd_redirect_t *rdir = malloc( sizeof( httpd_redirect_t ) );
 568
 569     if( !( rdir->url = httpd_UrlNewUnique( host, psz_url_src, NULL, NULL ) ) )
 570     {
 571         free( rdir );
 572         return NULL;
 573     }
 574     rdir->psz_dst = strdup( psz_url_dst );
 575
 576     /* Redirect apply for all HTTP request and RTSP DESCRIBE resquest */
 577     httpd_UrlCatch( rdir->url, HTTPD_MSG_HEAD, httpd_RedirectCallBack,
 578                     (httpd_callback_sys_t*)rdir );
 579     httpd_UrlCatch( rdir->url, HTTPD_MSG_GET, httpd_RedirectCallBack,
 580                     (httpd_callback_sys_t*)rdir );
 581     httpd_UrlCatch( rdir->url, HTTPD_MSG_POST, httpd_RedirectCallBack,
 582                     (httpd_callback_sys_t*)rdir );
 583     httpd_UrlCatch( rdir->url, HTTPD_MSG_DESCRIBE, httpd_RedirectCallBack,
 584                     (httpd_callback_sys_t*)rdir );
 585
 586     return rdir;
 587 }
 588 void httpd_RedirectDelete( httpd_redirect_t *rdir )
 589 {
 590     httpd_UrlDelete( rdir->url );
 591     free( rdir->psz_dst );
 592     free( rdir );
 593 }
 594
 595 /*****************************************************************************
 596  * High Level Funtions: httpd_stream_t
 597  *****************************************************************************/
 598 struct httpd_stream_t
 599 {
 600     vlc_mutex_t lock;
 601     httpd_url_t *url;
 602
 603     char    *psz_mime;
 604
 605     /* Header to send as first packet */
 606     uint8_t *p_header;
 607     int     i_header;
 608
 609     /* circular buffer */
 610     int         i_buffer_size;      /* buffer size, can't be reallocated smaller */
 611     uint8_t     *p_buffer;          /* buffer */
 612     int64_t     i_buffer_pos;       /* absolute position from begining */
 613     int64_t     i_buffer_last_pos;  /* a new connection will start with that */
 614 };
 615
 616 static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
 617                                  httpd_client_t *cl, httpd_message_t *answer,
 618                                  httpd_message_t *query )
 619 {
 620     httpd_stream_t *stream = (httpd_stream_t*)p_sys;
 621
 622     if( answer == NULL || query == NULL || cl == NULL )
 623     {
 624         return VLC_SUCCESS;
 625     }
 626     if( answer->i_body_offset > 0 )
 627     {
 628         int64_t i_write;
 629         int     i_pos;
 630
 631 #if 0
 632         fprintf( stderr, "httpd_StreamCallBack i_body_offset=%lld\n",
 633                  answer->i_body_offset );
 634 #endif
 635
 636         if( answer->i_body_offset >= stream->i_buffer_pos )
 637         {
 638             /* fprintf( stderr, "httpd_StreamCallBack: no data\n" ); */
 639             return VLC_EGENERIC;    /* wait, no data available */
 640         }
 641         if( answer->i_body_offset + stream->i_buffer_size <
 642             stream->i_buffer_pos )
 643         {
 644             /* this client isn't fast enough */
 645             fprintf( stderr, "fixing i_body_offset (old=%lld new=%lld)\n",
 646                      answer->i_body_offset, stream->i_buffer_last_pos );
 647             answer->i_body_offset = stream->i_buffer_last_pos;
 648         }
 649
 650         i_pos   = answer->i_body_offset % stream->i_buffer_size;
 651         i_write = stream->i_buffer_pos - answer->i_body_offset;
 652         if( i_write > 10000 )
 653         {
 654             i_write = 10000;
 655         }
 656         else if( i_write <= 0 )
 657         {
 658             return VLC_EGENERIC;    /* wait, no data available */
 659         }
 660
 661         /* Don't go past the end of the circular buffer */
 662         i_write = __MIN( i_write, stream->i_buffer_size - i_pos );
 663
 664         /* using HTTPD_MSG_ANSWER -> data available */
 665         answer->i_proto  = HTTPD_PROTO_HTTP;
 666         answer->i_version= 0;
 667         answer->i_type   = HTTPD_MSG_ANSWER;
 668
 669         answer->i_body = i_write;
 670         answer->p_body = malloc( i_write );
 671         memcpy( answer->p_body, &stream->p_buffer[i_pos], i_write );
 672
 673         answer->i_body_offset += i_write;
 674
 675         return VLC_SUCCESS;
 676     }
 677     else
 678     {
 679         answer->i_proto  = HTTPD_PROTO_HTTP;
 680         answer->i_version= 0;
 681         answer->i_type   = HTTPD_MSG_ANSWER;
 682
 683         answer->i_status = 200;
 684         answer->psz_status = strdup( "OK" );
 685
 686         if( query->i_type != HTTPD_MSG_HEAD )
 687         {
 688             httpd_ClientModeStream( cl );
 689             vlc_mutex_lock( &stream->lock );
 690             /* Send the header */
 691             if( stream->i_header > 0 )
 692             {
 693                 answer->i_body = stream->i_header;
 694                 answer->p_body = malloc( stream->i_header );
 695                 memcpy( answer->p_body, stream->p_header, stream->i_header );
 696             }
 697             answer->i_body_offset = stream->i_buffer_last_pos;
 698             vlc_mutex_unlock( &stream->lock );
 699         }
 700         else
 701         {
 702             httpd_MsgAdd( answer, "Content-Length", "%d", 0 );
 703         }
 704
 705         if( !strcmp( stream->psz_mime, "video/x-ms-asf-stream" ) )
 706         {
 707             vlc_bool_t b_xplaystream = VLC_FALSE;
 708             int i;
 709
 710             httpd_MsgAdd( answer, "Content-type", "%s",
 711                           "application/octet-stream" );
 712             httpd_MsgAdd( answer, "Server", "Cougar 4.1.0.3921" );
 713             httpd_MsgAdd( answer, "Pragma", "no-cache" );
 714             httpd_MsgAdd( answer, "Pragma", "client-id=%d", rand()&0x7fff );
 715             httpd_MsgAdd( answer, "Pragma", "features=\"broadcast\"" );
 716
 717             /* Check if there is a xPlayStrm=1 */
 718             for( i = 0; i < query->i_name; i++ )
 719             {
 720                 if( !strcasecmp( query->name[i],  "Pragma" ) &&
 721                     !strcasecmp( query->value[i], "xPlayStrm=1" ) )
 722                 {
 723                     b_xplaystream = VLC_TRUE;
 724                 }
 725             }
 726
 727             if( !b_xplaystream )
 728             {
 729                 answer->i_body_offset = 0;
 730             }
 731         }
 732         else
 733         {
 734             httpd_MsgAdd( answer, "Content-type",  "%s", stream->psz_mime );
 735         }
 736         httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 737         return VLC_SUCCESS;
 738     }
 739 }
 740
 741 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
 742                                  char *psz_url, char *psz_mime,
 743                                  char *psz_user, char *psz_password )
 744 {
 745     httpd_stream_t *stream = malloc( sizeof( httpd_stream_t ) );
 746
 747     if( ( stream->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 748                                             psz_password ) ) == NULL )
 749     {
 750         free( stream );
 751         return NULL;
 752     }
 753     vlc_mutex_init( host, &stream->lock );
 754     if( psz_mime && *psz_mime )
 755     {
 756         stream->psz_mime = strdup( psz_mime );
 757     }
 758     else
 759     {
 760         stream->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 761     }
 762     stream->i_header = 0;
 763     stream->p_header = NULL;
 764     stream->i_buffer_size = 5000000;    /* 5 Mo per stream */
 765     stream->p_buffer = malloc( stream->i_buffer_size );
 766     /* We set to 1 to make life simpler
 767      * (this way i_body_offset can never be 0) */
 768     stream->i_buffer_pos = 1;
 769     stream->i_buffer_last_pos = 1;
 770
 771     httpd_UrlCatch( stream->url, HTTPD_MSG_HEAD, httpd_StreamCallBack,
 772                     (httpd_callback_sys_t*)stream );
 773     httpd_UrlCatch( stream->url, HTTPD_MSG_GET, httpd_StreamCallBack,
 774                     (httpd_callback_sys_t*)stream );
 775     httpd_UrlCatch( stream->url, HTTPD_MSG_POST, httpd_StreamCallBack,
 776                     (httpd_callback_sys_t*)stream );
 777
 778     return stream;
 779 }
 780
 781 int httpd_StreamHeader( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 782 {
 783     vlc_mutex_lock( &stream->lock );
 784     if( stream->p_header )
 785     {
 786         free( stream->p_header );
 787         stream->p_header = NULL;
 788     }
 789     stream->i_header = i_data;
 790     if( i_data > 0 )
 791     {
 792         stream->p_header = malloc( i_data );
 793         memcpy( stream->p_header, p_data, i_data );
 794     }
 795     vlc_mutex_unlock( &stream->lock );
 796
 797     return VLC_SUCCESS;
 798 }
 799
 800 int httpd_StreamSend( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 801 {
 802     int i_count;
 803     int i_pos;
 804
 805     if( i_data < 0 || p_data == NULL )
 806     {
 807         return VLC_SUCCESS;
 808     }
 809     vlc_mutex_lock( &stream->lock );
 810
 811     /* save this pointer (to be used by new connection) */
 812     stream->i_buffer_last_pos = stream->i_buffer_pos;
 813
 814     i_pos = stream->i_buffer_pos % stream->i_buffer_size;
 815     i_count = i_data;
 816     while( i_count > 0)
 817     {
 818         int i_copy;
 819
 820         i_copy = __MIN( i_count, stream->i_buffer_size - i_pos );
 821
 822         /* Ok, we can't go past the end of our buffer */
 823         memcpy( &stream->p_buffer[i_pos], p_data, i_copy );
 824
 825         i_pos = ( i_pos + i_copy ) % stream->i_buffer_size;
 826         i_count -= i_copy;
 827         p_data  += i_copy;
 828     }
 829
 830     stream->i_buffer_pos += i_data;
 831
 832     vlc_mutex_unlock( &stream->lock );
 833     return VLC_SUCCESS;
 834 }
 835
 836 void httpd_StreamDelete( httpd_stream_t *stream )
 837 {
 838     httpd_UrlDelete( stream->url );
 839     vlc_mutex_destroy( &stream->lock );
 840     if( stream->psz_mime ) free( stream->psz_mime );
 841     if( stream->p_header ) free( stream->p_header );
 842     if( stream->p_buffer ) free( stream->p_buffer );
 843     free( stream );
 844 }
 845
 846
 847 /*****************************************************************************
 848  * Low level
 849  *****************************************************************************/
 850 #define LISTEN_BACKLOG          100
 851
 852 #if defined( WIN32 ) || defined( UNDER_CE )
 853 #define SOCKET_CLOSE(a)    closesocket(a)
 854 #else
 855 #define SOCKET_CLOSE(a)    close(a)
 856 #endif
 857
 858 static void httpd_HostThread( httpd_host_t * );
 859 static int BuildAddr( struct sockaddr_in * p_socket,
 860                       const char * psz_address, int i_port );
 861
 862
 863 /* create a new host */
 864 httpd_host_t *httpd_HostNew( vlc_object_t *p_this, char *psz_host, int i_port )
 865 {
 866     httpd_t      *httpd;
 867     httpd_host_t *host;
 868     vlc_value_t lockval;
 869     struct sockaddr_in sock;
 870     int i;
 871
 872     /* resolv */
 873     if( BuildAddr( &sock, psz_host, i_port ) )
 874     {
 875         msg_Err( p_this, "cannot build address for %s:%d", psz_host, i_port );
 876         return NULL;
 877     }
 878
 879     /* to be sure to avoid multiple creation */
 880     var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
 881     var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
 882     vlc_mutex_lock( lockval.p_address );
 883
 884     if( !(httpd = vlc_object_find( p_this, VLC_OBJECT_HTTPD, FIND_ANYWHERE )) )
 885     {
 886         msg_Info( p_this, "creating httpd" );
 887         if( ( httpd = vlc_object_create( p_this, VLC_OBJECT_HTTPD ) ) == NULL )
 888         {
 889             vlc_mutex_unlock( lockval.p_address );
 890             return NULL;
 891         }
 892
 893         httpd->i_host = 0;
 894         httpd->host   = NULL;
 895
 896         vlc_object_yield( httpd );
 897         vlc_object_attach( httpd, p_this->p_vlc );
 898     }
 899
 900     /* verify if it already exist */
 901     for( i = 0; i < httpd->i_host; i++ )
 902     {
 903         if( httpd->host[i]->sock.sin_port == sock.sin_port &&
 904             ( httpd->host[i]->sock.sin_addr.s_addr == INADDR_ANY ||
 905               httpd->host[i]->sock.sin_addr.s_addr == sock.sin_addr.s_addr ) )
 906         {
 907             /* yep found */
 908             host = httpd->host[i];
 909             host->i_ref++;
 910
 911             vlc_mutex_unlock( lockval.p_address );
 912
 913             msg_Dbg( p_this, "host already registered" );
 914             return host;
 915         }
 916     }
 917     /* create the new host */
 918     host = vlc_object_create( p_this, sizeof( httpd_host_t ) );
 919     host->httpd = httpd;
 920     vlc_mutex_init( httpd, &host->lock );
 921     host->i_ref = 1;
 922     memcpy( &host->sock, &sock, sizeof( struct sockaddr_in ) );
 923     host->i_url     = 0;
 924     host->url       = NULL;
 925     host->i_client  = 0;
 926     host->client    = NULL;
 927
 928     /* create the listening socket */
 929     if( ( host->fd = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
 930     {
 931         goto socket_error;
 932     }
 933     /* reuse socket */
 934     i = 1;
 935     if( setsockopt( host->fd, SOL_SOCKET, SO_REUSEADDR,
 936                     (void *) &i, sizeof( i ) ) < 0 )
 937     {
 938         msg_Warn( p_this, "cannot configure socket (SO_REUSEADDR)" );
 939     }
 940     /* bind it */
 941     if( bind( host->fd, (struct sockaddr *)&host->sock,
 942         sizeof( struct sockaddr_in ) ) < 0 )
 943     {
 944         msg_Err( p_this, "cannot bind socket" );
 945         goto socket_error;
 946     }
 947     /* set to non-blocking */
 948 #if defined( WIN32 ) || defined( UNDER_CE )
 949     {
 950         unsigned long i_dummy = 1;
 951         if( ioctlsocket( host->fd, FIONBIO, &i_dummy ) != 0 )
 952         {
 953             msg_Err( p_this, "cannot set socket to non-blocking mode" );
 954             goto socket_error;
 955         }
 956     }
 957 #else
 958     {
 959         unsigned int i_flags;
 960         if( ( i_flags = fcntl( host->fd, F_GETFL, 0 ) ) < 0 )
 961         {
 962             msg_Err( p_this, "cannot F_GETFL socket" );
 963             goto socket_error;
 964         }
 965         if( fcntl( host->fd, F_SETFL, i_flags | O_NONBLOCK ) < 0 )
 966         {
 967             msg_Err( p_this, "cannot F_SETFL O_NONBLOCK" );
 968             goto socket_error;
 969         }
 970     }
 971 #endif
 972     /* listen */
 973     if( listen( host->fd, LISTEN_BACKLOG ) < 0 )
 974     {
 975         msg_Err( p_this, "cannot listen socket" );
 976         goto socket_error;
 977     }
 978
 979     /* create the thread */
 980     if( vlc_thread_create( host, "httpd host thread", httpd_HostThread,
 981                            VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
 982     {
 983         msg_Err( p_this, "cannot spawn http host thread" );
 984         goto socket_error;
 985     }
 986
 987     /* now add it to httpd */
 988     TAB_APPEND( httpd->i_host, httpd->host, host );
 989     vlc_mutex_unlock( lockval.p_address );
 990
 991     return host;
 992
 993 socket_error:
 994     vlc_mutex_unlock( lockval.p_address );
 995
 996     if( host->fd > 0 )
 997     {
 998         SOCKET_CLOSE( host->fd );
 999     }
1000     vlc_mutex_destroy( &host->lock );
1001     vlc_object_destroy( host );
1002
1003     /* TODO destroy no more used httpd TODO */
1004     vlc_object_release( httpd );
1005     return NULL;
1006 }
1007
1008 /* delete a host */
1009 void httpd_HostDelete( httpd_host_t *host )
1010 {
1011     httpd_t *httpd = host->httpd;
1012     vlc_value_t lockval;
1013     int i;
1014
1015     msg_Dbg( host, "httpd_HostDelete" );
1016
1017     var_Get( httpd->p_libvlc, "httpd_mutex", &lockval );
1018     vlc_mutex_lock( lockval.p_address );
1019
1020     vlc_object_release( httpd );
1021
1022     host->i_ref--;
1023     if( host->i_ref > 0 )
1024     {
1025         /* still used */
1026         vlc_mutex_unlock( lockval.p_address );
1027         msg_Dbg( host, "httpd_HostDelete: host still used" );
1028         return;
1029     }
1030     TAB_REMOVE( httpd->i_host, httpd->host, host );
1031
1032     msg_Dbg( host, "httpd_HostDelete: host removed from http" );
1033
1034     host->b_die = 1;
1035     vlc_thread_join( host );
1036
1037     msg_Dbg( host, "httpd_HostDelete: host thread joined" );
1038
1039     for( i = 0; i < host->i_url; i++ )
1040     {
1041         msg_Err( host, "url still registered:%s", host->url[i]->psz_url );
1042     }
1043     for( i = 0; i < host->i_client; i++ )
1044     {
1045         httpd_client_t *cl = host->client[i];
1046         msg_Warn( host, "client still connected" );
1047         httpd_ClientClean( cl );
1048         TAB_REMOVE( host->i_client, host->client, cl );
1049         free( cl );
1050         i--;
1051         /* TODO */
1052     }
1053
1054     SOCKET_CLOSE( host->fd );
1055     vlc_mutex_destroy( &host->lock );
1056     vlc_object_destroy( host );
1057
1058     if( httpd->i_host <= 0 )
1059     {
1060         msg_Info( httpd, "httpd doesn't reference any host, deleting" );
1061         vlc_object_detach( httpd );
1062         vlc_object_destroy( httpd );
1063     }
1064     vlc_mutex_unlock( lockval.p_address );
1065 }
1066
1067 /* register a new url */
1068 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, char *psz_url,
1069                                          char *psz_user, char *psz_password,
1070                                          vlc_bool_t b_check )
1071 {
1072     httpd_url_t *url;
1073     int         i;
1074
1075     vlc_mutex_lock( &host->lock );
1076     if( b_check )
1077     {
1078         for( i = 0; i < host->i_url; i++ )
1079         {
1080             if( !strcmp( psz_url, host->url[i]->psz_url ) )
1081             {
1082                 msg_Warn( host->httpd,
1083                           "cannot add '%s' (url already defined)", psz_url );
1084                 vlc_mutex_unlock( &host->lock );
1085                 return NULL;
1086             }
1087         }
1088     }
1089
1090     url = malloc( sizeof( httpd_url_t ) );
1091     url->host = host;
1092
1093     vlc_mutex_init( host->httpd, &url->lock );
1094     url->psz_url = strdup( psz_url );
1095     url->psz_user = strdup( psz_user ? psz_user : "" );
1096     url->psz_password = strdup( psz_password ? psz_password : "" );
1097     for( i = 0; i < HTTPD_MSG_MAX; i++ )
1098     {
1099         url->catch[i].cb = NULL;
1100         url->catch[i].p_sys = NULL;
1101     }
1102
1103     TAB_APPEND( host->i_url, host->url, url );
1104     vlc_mutex_unlock( &host->lock );
1105
1106     return url;
1107 }
1108
1109 httpd_url_t *httpd_UrlNew( httpd_host_t *host, char *psz_url,
1110                            char *psz_user, char *psz_password )
1111 {
1112     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1113                                 psz_password, VLC_FALSE );
1114 }
1115
1116 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, char *psz_url,
1117                                  char *psz_user, char *psz_password )
1118 {
1119     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1120                                 psz_password, VLC_TRUE );
1121 }
1122
1123 /* register callback on a url */
1124 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1125                     httpd_callback_sys_t *p_sys )
1126 {
1127     vlc_mutex_lock( &url->lock );
1128     url->catch[i_msg].cb   = cb;
1129     url->catch[i_msg].p_sys= p_sys;
1130     vlc_mutex_unlock( &url->lock );
1131
1132     return VLC_SUCCESS;
1133 }
1134
1135
1136 /* delete an url */
1137 void httpd_UrlDelete( httpd_url_t *url )
1138 {
1139     httpd_host_t *host = url->host;
1140     int          i;
1141
1142     vlc_mutex_lock( &host->lock );
1143     TAB_REMOVE( host->i_url, host->url, url );
1144
1145     vlc_mutex_destroy( &url->lock );
1146     free( url->psz_url );
1147     free( url->psz_user );
1148     free( url->psz_password );
1149
1150     for( i = 0; i < host->i_client; i++ )
1151     {
1152         httpd_client_t *client = host->client[i];
1153
1154         if( client->url == url )
1155         {
1156             /* TODO complete it */
1157             msg_Warn( host, "force closing connections" );
1158             httpd_ClientClean( client );
1159             TAB_REMOVE( host->i_client, host->client, client );
1160             free( client );
1161             i--;
1162         }
1163     }
1164     free( url );
1165     vlc_mutex_unlock( &host->lock );
1166 }
1167
1168 void httpd_MsgInit( httpd_message_t *msg )
1169 {
1170     msg->cl         = NULL;
1171     msg->i_type     = HTTPD_MSG_NONE;
1172     msg->i_proto    = HTTPD_PROTO_NONE;
1173     msg->i_version  = -1;
1174
1175     msg->i_status   = 0;
1176     msg->psz_status = NULL;
1177
1178     msg->psz_url = NULL;
1179     msg->psz_args = NULL;
1180
1181     msg->i_channel = -1;
1182
1183     msg->i_name = 0;
1184     msg->name   = NULL;
1185     msg->i_value= 0;
1186     msg->value  = NULL;
1187
1188     msg->i_body_offset = 0;
1189     msg->i_body        = 0;
1190     msg->p_body        = 0;
1191 }
1192
1193 void httpd_MsgClean( httpd_message_t *msg )
1194 {
1195     int i;
1196
1197     if( msg->psz_status )
1198     {
1199         free( msg->psz_status );
1200     }
1201     if( msg->psz_url )
1202     {
1203         free( msg->psz_url );
1204     }
1205     if( msg->psz_args )
1206     {
1207         free( msg->psz_args );
1208     }
1209     for( i = 0; i < msg->i_name; i++ )
1210     {
1211         free( msg->name[i] );
1212         free( msg->value[i] );
1213     }
1214     if( msg->name )
1215     {
1216         free( msg->name );
1217     }
1218     if( msg->value )
1219     {
1220         free( msg->value );
1221     }
1222     if( msg->p_body )
1223     {
1224         free( msg->p_body );
1225     }
1226     httpd_MsgInit( msg );
1227 }
1228
1229 char *httpd_MsgGet( httpd_message_t *msg, char *name )
1230 {
1231     int i;
1232
1233     for( i = 0; i < msg->i_name; i++ )
1234     {
1235         if( !strcasecmp( msg->name[i], name ))
1236         {
1237             return msg->value[i];
1238         }
1239     }
1240     return "";
1241 }
1242 void httpd_MsgAdd( httpd_message_t *msg, char *name, char *psz_value, ... )
1243 {
1244     va_list args;
1245     char *value = NULL;
1246
1247     va_start( args, psz_value );
1248 #if defined(HAVE_VASPRINTF) && !defined(SYS_DARWIN) && !defined(SYS_BEOS)
1249     vasprintf( &value, psz_value, args );
1250 #else
1251     {
1252         int i_size = strlen( psz_value ) + 4096;    /* FIXME stupid system */
1253         value = calloc( i_size, sizeof( char ) );
1254         vsnprintf( value, i_size, psz_value, args );
1255         value[i_size - 1] = 0;
1256     }
1257 #endif
1258     va_end( args );
1259
1260     name = strdup( name );
1261
1262     TAB_APPEND( msg->i_name,  msg->name,  name );
1263     TAB_APPEND( msg->i_value, msg->value, value );
1264 }
1265
1266 static void httpd_ClientInit( httpd_client_t *cl )
1267 {
1268     cl->i_state = HTTPD_CLIENT_RECEIVING;
1269     cl->i_activity_date = mdate();
1270     cl->i_activity_timeout = 50000000LL;
1271     cl->i_buffer_size = 10000;
1272     cl->i_buffer = 0;
1273     cl->p_buffer = malloc( cl->i_buffer_size );
1274     cl->i_mode   = HTTPD_CLIENT_FILE;
1275     cl->b_read_waiting = VLC_FALSE;
1276
1277     httpd_MsgInit( &cl->query );
1278     httpd_MsgInit( &cl->answer );
1279 }
1280
1281 void httpd_ClientModeStream( httpd_client_t *cl )
1282 {
1283     cl->i_mode   = HTTPD_CLIENT_STREAM;
1284 }
1285
1286 void httpd_ClientModeBidir( httpd_client_t *cl )
1287 {
1288     cl->i_mode   = HTTPD_CLIENT_BIDIR;
1289 }
1290
1291 char* httpd_ClientIP( httpd_client_t *cl )
1292 {
1293     /* FIXME not thread safe */
1294     return strdup( inet_ntoa( cl->sock.sin_addr ) );
1295 }
1296
1297 static void httpd_ClientClean( httpd_client_t *cl )
1298 {
1299     if( cl->fd > 0 )
1300     {
1301         SOCKET_CLOSE( cl->fd );
1302         cl->fd = -1;
1303     }
1304
1305     httpd_MsgClean( &cl->answer );
1306     httpd_MsgClean( &cl->query );
1307
1308     if( cl->p_buffer )
1309     {
1310         free( cl->p_buffer );
1311         cl->p_buffer = NULL;
1312     }
1313 }
1314
1315 static httpd_client_t *httpd_ClientNew( int fd, struct sockaddr_in *sock )
1316 {
1317     httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1318     /* set this new socket non-block */
1319 #if defined( WIN32 ) || defined( UNDER_CE )
1320     {
1321         unsigned long i_dummy = 1;
1322         ioctlsocket( fd, FIONBIO, &i_dummy );
1323     }
1324 #else
1325     fcntl( fd, F_SETFL, O_NONBLOCK );
1326 #endif
1327     cl->i_ref   = 0;
1328     cl->fd      = fd;
1329     cl->sock    = *sock;
1330     cl->url     = NULL;
1331
1332     httpd_ClientInit( cl );
1333
1334     return cl;
1335 }
1336
1337 static void httpd_ClientRecv( httpd_client_t *cl )
1338 {
1339     int i_len;
1340
1341     if( cl->query.i_proto == HTTPD_PROTO_NONE )
1342     {
1343         /* enought to see if it's rtp over rtsp or RTSP/HTTP */
1344         i_len = recv( cl->fd, &cl->p_buffer[cl->i_buffer], 4 - cl->i_buffer, 0 );
1345
1346         if( i_len > 0 )
1347         {
1348             cl->i_buffer += i_len;
1349         }
1350
1351         if( cl->i_buffer >= 4 )
1352         {
1353             fprintf( stderr, "peek=%4.4s\n", cl->p_buffer );
1354             /* detect type */
1355             if( cl->p_buffer[0] == '$' )
1356             {
1357                 /* RTSP (rtp over rtsp) */
1358                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1359                 cl->query.i_type  = HTTPD_MSG_CHANNEL;
1360                 cl->query.i_channel = cl->p_buffer[1];
1361                 cl->query.i_body  = (cl->p_buffer[2] << 8)|cl->p_buffer[3];
1362                 cl->query.p_body  = malloc( cl->query.i_body );
1363
1364                 cl->i_buffer      = 0;
1365             }
1366             else if( !strncmp( cl->p_buffer, "HTTP", 4 ) )
1367             {
1368                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1369                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1370             }
1371             else if( !strncmp( cl->p_buffer, "RTSP", 4 ) )
1372             {
1373                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1374                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1375             }
1376             else if( !strncmp( cl->p_buffer, "GET", 3 ) ||
1377                      !strncmp( cl->p_buffer, "HEAD", 4 ) ||
1378                      !strncmp( cl->p_buffer, "POST", 4 ) )
1379             {
1380                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1381                 cl->query.i_type  = HTTPD_MSG_NONE;
1382             }
1383             else
1384             {
1385                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1386                 cl->query.i_type  = HTTPD_MSG_NONE;
1387             }
1388         }
1389     }
1390     else if( cl->query.i_body > 0 )
1391     {
1392         /* we are reading the body of a request or a channel */
1393         i_len = recv( cl->fd, &cl->query.p_body[cl->i_buffer],
1394                       cl->query.i_body - cl->i_buffer, 0 );
1395         if( i_len > 0 )
1396         {
1397             cl->i_buffer += i_len;
1398         }
1399         if( cl->i_buffer >= cl->query.i_body )
1400         {
1401             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1402         }
1403     }
1404     else
1405     {
1406         /* we are reading a header -> char by char */
1407         for( ;; )
1408         {
1409             i_len = recv( cl->fd, &cl->p_buffer[cl->i_buffer], 1, 0 );
1410             if( i_len <= 0 )
1411             {
1412                 break;
1413             }
1414             cl->i_buffer++;
1415
1416             if( cl->i_buffer + 1 >= cl->i_buffer_size )
1417             {
1418                 cl->i_buffer_size += 1024;
1419                 cl->p_buffer = realloc( cl->p_buffer, cl->i_buffer_size );
1420             }
1421             if( ( cl->i_buffer >= 2 && !strncmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1422                 ( cl->i_buffer >= 4 && !strncmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1423             {
1424                 char *p;
1425
1426                 /* we have finished the header so parse it and set i_body */
1427                 cl->p_buffer[cl->i_buffer] = '\0';
1428
1429                 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1430                 {
1431                     cl->query.i_status =
1432                         strtol( &cl->p_buffer[strlen( "HTTP/1.x" )], &p, 0 );
1433                     while( *p == ' ' )
1434                     {
1435                         p++;
1436                     }
1437                     cl->query.psz_status = strdup( p );
1438                 }
1439                 else
1440                 {
1441                     static const struct
1442                     {
1443                         char *name;
1444                         int  i_type;
1445                         int  i_proto;
1446                     }
1447                     msg_type[] =
1448                     {
1449                         { "GET",        HTTPD_MSG_GET,  HTTPD_PROTO_HTTP },
1450                         { "HEAD",       HTTPD_MSG_HEAD, HTTPD_PROTO_HTTP },
1451                         { "POST",       HTTPD_MSG_POST, HTTPD_PROTO_HTTP },
1452
1453                         { "OPTIONS",    HTTPD_MSG_OPTIONS,  HTTPD_PROTO_RTSP },
1454                         { "DESCRIBE",   HTTPD_MSG_DESCRIBE, HTTPD_PROTO_RTSP },
1455                         { "SETUP",      HTTPD_MSG_SETUP,    HTTPD_PROTO_RTSP },
1456                         { "PLAY",       HTTPD_MSG_PLAY,     HTTPD_PROTO_RTSP },
1457                         { "PAUSE",      HTTPD_MSG_PAUSE,    HTTPD_PROTO_RTSP },
1458                         { "TEARDOWN",   HTTPD_MSG_TEARDOWN, HTTPD_PROTO_RTSP },
1459
1460                         { NULL,         HTTPD_MSG_NONE,     HTTPD_PROTO_NONE }
1461                     };
1462                     int  i;
1463
1464                     p = NULL;
1465                     cl->query.i_type = HTTPD_MSG_NONE;
1466
1467                     fprintf( stderr, "received new request=%s\n", cl->p_buffer);
1468
1469                     for( i = 0; msg_type[i].name != NULL; i++ )
1470                     {
1471                         if( !strncmp( cl->p_buffer, msg_type[i].name,
1472                                       strlen( msg_type[i].name ) ) )
1473                         {
1474                             p = &cl->p_buffer[strlen(msg_type[i].name) + 1 ];
1475                             cl->query.i_type = msg_type[i].i_type;
1476                             if( cl->query.i_proto != msg_type[i].i_proto )
1477                             {
1478                                 p = NULL;
1479                                 cl->query.i_proto = HTTPD_PROTO_NONE;
1480                                 cl->query.i_type = HTTPD_MSG_NONE;
1481                             }
1482                             break;
1483                         }
1484                     }
1485                     if( p == NULL )
1486                     {
1487                         if( strstr( cl->p_buffer, "HTTP/1." ) )
1488                         {
1489                             cl->query.i_proto = HTTPD_PROTO_HTTP;
1490                         }
1491                         else if( strstr( cl->p_buffer, "RTSP/1." ) )
1492                         {
1493                             cl->query.i_proto = HTTPD_PROTO_RTSP;
1494                         }
1495                     }
1496                     else
1497                     {
1498                         char *p2;
1499                         char *p3;
1500
1501                         while( *p == ' ' )
1502                         {
1503                             p++;
1504                         }
1505                         p2 = strchr( p, ' ' );
1506                         if( p2 )
1507                         {
1508                             *p2++ = '\0';
1509                         }
1510                         if( !strncasecmp( p, "rtsp:", 5 ) )
1511                         {
1512                             /* for rtsp url, you have rtsp://localhost:port/path */
1513                             p += 5;
1514                             while( *p == '/' ) p++;
1515                             while( *p && *p != '/' ) p++;
1516                         }
1517                         cl->query.psz_url = strdup( p );
1518                         if( ( p3 = strchr( cl->query.psz_url, '?' ) )  )
1519                         {
1520                             *p3++ = '\0';
1521                             cl->query.psz_args = strdup( p3 );
1522                         }
1523                         if( p2 )
1524                         {
1525                             while( *p2 == ' ' )
1526                             {
1527                                 p2++;
1528                             }
1529                             if( !strncasecmp( p2, "HTTP/1.", 7 ) )
1530                             {
1531                                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1532                                 cl->query.i_version = atoi( p2+7 );
1533                             }
1534                             else if( !strncasecmp( p2, "RTSP/1.", 7 ) )
1535                             {
1536                                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1537                                 cl->query.i_version = atoi( p2+7 );
1538                             }
1539                         }
1540                         p = p2;
1541                     }
1542                 }
1543                 if( p )
1544                 {
1545                     p = strchr( p, '\n' );
1546                 }
1547                 if( p )
1548                 {
1549                     while( *p == '\n' || *p == '\r' )
1550                     {
1551                         p++;
1552                     }
1553                     while( p && *p != '\0' )
1554                     {
1555                         char *line = p;
1556                         char *eol = p = strchr( p, '\n' );
1557                         char *colon;
1558
1559                         while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1560                         {
1561                             *eol-- = '\0';
1562                         }
1563
1564                         if( ( colon = strchr( line, ':' ) ) )
1565                         {
1566                             char *name;
1567                             char *value;
1568
1569                             *colon++ = '\0';
1570                             while( *colon == ' ' )
1571                             {
1572                                 colon++;
1573                             }
1574                             name = strdup( line );
1575                             value = strdup( colon );
1576
1577                             TAB_APPEND( cl->query.i_name, cl->query.name, name );
1578                             TAB_APPEND( cl->query.i_value,cl->query.value,value);
1579
1580                             if( !strcasecmp( name, "Content-Length" ) )
1581                             {
1582                                 cl->query.i_body = atol( value );
1583                             }
1584                         }
1585
1586                         if( p )
1587                         {
1588                             p++;
1589                             while( *p == '\n' || *p == '\r' )
1590                             {
1591                                 p++;
1592                             }
1593                         }
1594                     }
1595                 }
1596                 if( cl->query.i_body > 0 )
1597                 {
1598                     /* TODO Mhh, handle the case client will only send a request and close the connection
1599                      * to mark and of body (probably only RTSP) */
1600                     cl->query.p_body = malloc( cl->query.i_body );
1601                     cl->i_buffer = 0;
1602                 }
1603                 else
1604                 {
1605                     cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1606                 }
1607             }
1608         }
1609     }
1610
1611     /* check if the client is to be set to dead */
1612 #if defined( WIN32 ) || defined( UNDER_CE )
1613     if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1614 #else
1615     if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1616 #endif
1617     {
1618         if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1619         {
1620             /* connection closed -> end of data */
1621             if( cl->query.i_body > 0 )
1622             {
1623                 cl->query.i_body = cl->i_buffer;
1624             }
1625             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1626         }
1627         else
1628         {
1629             cl->i_state = HTTPD_CLIENT_DEAD;
1630         }
1631     }
1632     cl->i_activity_date = mdate();
1633
1634     /* Debugging only */
1635     if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1636     {
1637         int i;
1638
1639         fprintf( stderr, "received new request\n" );
1640         fprintf( stderr, "  - proto=%s\n",
1641                  cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1642         fprintf( stderr, "  - version=%d\n", cl->query.i_version );
1643         fprintf( stderr, "  - msg=%d\n", cl->query.i_type );
1644         if( cl->query.i_type == HTTPD_MSG_ANSWER )
1645         {
1646             fprintf( stderr, "  - answer=%d '%s'\n", cl->query.i_status,
1647                      cl->query.psz_status );
1648         }
1649         else if( cl->query.i_type != HTTPD_MSG_NONE )
1650         {
1651             fprintf( stderr, "  - url=%s\n", cl->query.psz_url );
1652         }
1653         for( i = 0; i < cl->query.i_name; i++ )
1654         {
1655             fprintf( stderr, "  - option name='%s' value='%s'\n",
1656                      cl->query.name[i], cl->query.value[i] );
1657         }
1658     }
1659 }
1660
1661 static void httpd_ClientSend( httpd_client_t *cl )
1662 {
1663     int i;
1664     int i_len;
1665
1666     if( cl->i_buffer < 0 )
1667     {
1668         /* We need to create the header */
1669         int i_size = 0;
1670         char *p;
1671
1672         i_size = strlen( "HTTP/1.") + 10 + 10 +
1673                  strlen( cl->answer.psz_status ? cl->answer.psz_status : "" ) + 5;
1674         for( i = 0; i < cl->answer.i_name; i++ )
1675         {
1676             i_size += strlen( cl->answer.name[i] ) + 2 +
1677                       strlen( cl->answer.value[i] ) + 2;
1678         }
1679
1680         if( cl->i_buffer_size < i_size )
1681         {
1682             cl->i_buffer_size = i_size;
1683             free( cl->p_buffer );
1684             cl->p_buffer = malloc( i_size );
1685         }
1686         p = cl->p_buffer;
1687
1688         p += sprintf( p, "%s/1.%d %d %s\r\n",
1689                       cl->answer.i_proto ==  HTTPD_PROTO_HTTP ? "HTTP" : "RTSP",
1690                       cl->answer.i_version,
1691                       cl->answer.i_status, cl->answer.psz_status );
1692         for( i = 0; i < cl->answer.i_name; i++ )
1693         {
1694             p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1695                           cl->answer.value[i] );
1696         }
1697         p += sprintf( p, "\r\n" );
1698
1699         cl->i_buffer = 0;
1700         cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1701
1702         fprintf( stderr, "sending answer\n" );
1703         fprintf( stderr, "%s",  cl->p_buffer );
1704     }
1705
1706     i_len = send( cl->fd, &cl->p_buffer[cl->i_buffer],
1707                   cl->i_buffer_size - cl->i_buffer, 0 );
1708     if( i_len > 0 )
1709     {
1710         cl->i_activity_date = mdate();
1711         cl->i_buffer += i_len;
1712
1713         if( cl->i_buffer >= cl->i_buffer_size )
1714         {
1715             if( cl->answer.i_body == 0  && cl->answer.i_body_offset > 0 &&
1716                 !cl->b_read_waiting )
1717             {
1718                 /* catch more body data */
1719                 int     i_msg = cl->query.i_type;
1720                 int64_t i_offset = cl->answer.i_body_offset;
1721
1722                 httpd_MsgClean( &cl->answer );
1723                 cl->answer.i_body_offset = i_offset;
1724
1725                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1726                                           &cl->answer, &cl->query );
1727             }
1728
1729             if( cl->answer.i_body > 0 )
1730             {
1731                 /* send the body data */
1732                 free( cl->p_buffer );
1733                 cl->p_buffer = cl->answer.p_body;
1734                 cl->i_buffer_size = cl->answer.i_body;
1735                 cl->i_buffer = 0;
1736
1737                 cl->answer.i_body = 0;
1738                 cl->answer.p_body = NULL;
1739             }
1740             else
1741             {
1742                 /* send finished */
1743                 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1744             }
1745         }
1746     }
1747     else
1748     {
1749 #if defined( WIN32 ) || defined( UNDER_CE )
1750         if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1751 #else
1752         if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1753 #endif
1754         {
1755             /* error */
1756             cl->i_state = HTTPD_CLIENT_DEAD;
1757         }
1758     }
1759 }
1760
1761 static void httpd_HostThread( httpd_host_t *host )
1762 {
1763     while( !host->b_die )
1764     {
1765         struct timeval  timeout;
1766         fd_set          fds_read;
1767         fd_set          fds_write;
1768         int             i_handle_max = 0;
1769         int             i_ret;
1770         int             i_client;
1771         int             b_low_delay = 0;
1772
1773         if( host->i_url <= 0 )
1774         {
1775             /* 0.2s */
1776             msleep( 200000 );
1777             continue;
1778         }
1779
1780         /* built a set of handle to select */
1781         FD_ZERO( &fds_read );
1782         FD_ZERO( &fds_write );
1783
1784         FD_SET( host->fd, &fds_read );
1785         i_handle_max = host->fd;
1786
1787         /* add all socket that should be read/write and close dead connection */
1788         vlc_mutex_lock( &host->lock );
1789         for( i_client = 0; i_client < host->i_client; i_client++ )
1790         {
1791             httpd_client_t *cl = host->client[i_client];
1792
1793             if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
1794                 ( cl->i_state == HTTPD_CLIENT_DEAD ||
1795                   cl->i_activity_date + cl->i_activity_timeout < mdate() ) ) )
1796             {
1797                 msg_Dbg( host, "connection closed(%s)",
1798                          inet_ntoa(cl->sock.sin_addr) );
1799                 httpd_ClientClean( cl );
1800                 TAB_REMOVE( host->i_client, host->client, cl );
1801                 free( cl );
1802                 i_client--;
1803                 continue;
1804             }
1805             else if( cl->i_state == HTTPD_CLIENT_RECEIVING )
1806             {
1807                 FD_SET( cl->fd, &fds_read );
1808                 i_handle_max = __MAX( i_handle_max, cl->fd );
1809             }
1810             else if( cl->i_state == HTTPD_CLIENT_SENDING )
1811             {
1812                 FD_SET( cl->fd, &fds_write );
1813                 i_handle_max = __MAX( i_handle_max, cl->fd );
1814             }
1815             else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1816             {
1817                 httpd_message_t *answer = &cl->answer;
1818                 httpd_message_t *query  = &cl->query;
1819                 int i_msg = query->i_type;
1820
1821                 httpd_MsgInit( answer );
1822
1823                 /* Handle what we received */
1824                 if( cl->i_mode != HTTPD_CLIENT_BIDIR &&
1825                     (i_msg == HTTPD_MSG_ANSWER || i_msg == HTTPD_MSG_CHANNEL) )
1826                 {
1827                     /* we can only receive request from client when not
1828                      * in BIDIR mode */
1829                     cl->url     = NULL;
1830                     cl->i_state = HTTPD_CLIENT_DEAD;
1831                 }
1832                 else if( i_msg == HTTPD_MSG_ANSWER )
1833                 {
1834                     /* We are in BIDIR mode, trigger the callback and then
1835                      * check for new data */
1836                     if( cl->url && cl->url->catch[i_msg].cb )
1837                     {
1838                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
1839                                                   cl, NULL, query );
1840                     }
1841                     cl->i_state = HTTPD_CLIENT_WAITING;
1842                 }
1843                 else if( i_msg == HTTPD_MSG_CHANNEL )
1844                 {
1845                     /* We are in BIDIR mode, trigger the callback and then
1846                      * check for new data */
1847                     if( cl->url && cl->url->catch[i_msg].cb )
1848                     {
1849                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
1850                                                   cl, NULL, query );
1851                     }
1852                     cl->i_state = HTTPD_CLIENT_WAITING;
1853                 }
1854                 else if( i_msg == HTTPD_MSG_OPTIONS )
1855                 {
1856                     int i_cseq;
1857
1858                     /* unimplemented */
1859                     answer->i_proto  = query->i_proto ;
1860                     answer->i_type   = HTTPD_MSG_ANSWER;
1861                     answer->i_version= 0;
1862                     answer->i_status = 200;
1863                     answer->psz_status = strdup( "Ok" );
1864
1865                     answer->i_body = 0;
1866                     answer->p_body = NULL;
1867
1868                     i_cseq = atoi( httpd_MsgGet( query, "Cseq" ) );
1869                     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1870                     httpd_MsgAdd( answer, "Server", "VLC Server" );
1871                     httpd_MsgAdd( answer, "Public", "DESCRIBE, SETUP, "
1872                                  "TEARDOWN, PLAY, PAUSE" );
1873                     httpd_MsgAdd( answer, "Content-Length", "%d",
1874                                   answer->i_body );
1875
1876                     cl->i_buffer = -1;  /* Force the creation of the answer in
1877                                          * httpd_ClientSend */
1878                     cl->i_state = HTTPD_CLIENT_SENDING;
1879                 }
1880                 else if( i_msg == HTTPD_MSG_NONE )
1881                 {
1882                     if( query->i_proto == HTTPD_PROTO_NONE )
1883                     {
1884                         cl->url = NULL;
1885                         cl->i_state = HTTPD_CLIENT_DEAD;
1886                     }
1887                     else
1888                     {
1889                         uint8_t *p;
1890
1891                         /* unimplemented */
1892                         answer->i_proto  = query->i_proto ;
1893                         answer->i_type   = HTTPD_MSG_ANSWER;
1894                         answer->i_version= 0;
1895                         answer->i_status = 501;
1896                         answer->psz_status = strdup( "Unimplemented" );
1897
1898                         p = answer->p_body = malloc( 1000 );
1899
1900                         p += sprintf( p, "<html>\n" );
1901                         p += sprintf( p, "<head>\n" );
1902                         p += sprintf( p, "<title>Error 501</title>\n" );
1903                         p += sprintf( p, "</head>\n" );
1904                         p += sprintf( p, "<body>\n" );
1905                         p += sprintf( p, "<h1><center> 501 Unimplemented</center></h1>\n" );
1906                         p += sprintf( p, "<hr />\n" );
1907                         p += sprintf( p, "<a href=\"http://www.videolan.org\">VideoLAN</a>\n" );
1908                         p += sprintf( p, "</body>\n" );
1909                         p += sprintf( p, "</html>\n" );
1910
1911                         answer->i_body = p - answer->p_body;
1912                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1913
1914                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
1915                         cl->i_state = HTTPD_CLIENT_SENDING;
1916                     }
1917                 }
1918                 else
1919                 {
1920                     vlc_bool_t b_auth_failed = VLC_FALSE;
1921                     int i;
1922
1923                     /* Search the url and trigger callbacks */
1924                     for( i = 0; i < host->i_url; i++ )
1925                     {
1926                         httpd_url_t *url = host->url[i];
1927
1928                         if( !strcmp( url->psz_url, query->psz_url ) )
1929                         {
1930                             if( url->catch[i_msg].cb )
1931                             {
1932                                 if( answer && ( *url->psz_user || *url->psz_password ) )
1933                                 {
1934                                     /* create the headers */
1935                                     char id[strlen(url->psz_user)+strlen(url->psz_password) + 2];
1936                                     char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
1937                                     char auth[strlen(b64) +1];
1938
1939                                     sprintf( id, "%s:%s", url->psz_user, url->psz_password );
1940                                     if( !strncasecmp( b64, "BASIC", 5 ) )
1941                                     {
1942                                         b64 += 5;
1943                                         while( *b64 == ' ' )
1944                                         {
1945                                             b64++;
1946                                         }
1947                                         b64_decode( auth, b64 );
1948                                     }
1949                                     else
1950                                     {
1951                                         strcpy( auth, "" );
1952                                     }
1953                                     if( strcmp( id, auth ) )
1954                                     {
1955                                         httpd_MsgAdd( answer, "WWW-Authenticate", "Basic realm=\"%s\"", url->psz_user );
1956                                         /* We fail for all url */
1957                                         b_auth_failed = VLC_TRUE;
1958                                         break;
1959                                     }
1960                                 }
1961
1962                                 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
1963                                 {
1964                                     /* only one url can answer */
1965                                     answer = NULL;
1966                                     if( cl->url == NULL )
1967                                     {
1968                                         cl->url = url;
1969                                     }
1970                                 }
1971                             }
1972                         }
1973                     }
1974                     if( answer )
1975                     {
1976                         uint8_t *p;
1977
1978                         answer->i_proto  = query->i_proto;
1979                         answer->i_type   = HTTPD_MSG_ANSWER;
1980                         answer->i_version= 0;
1981                         p = answer->p_body = malloc( 1000 + strlen(query->psz_url) );
1982
1983                         if( b_auth_failed )
1984                         {
1985                             answer->i_status = 401;
1986                             answer->psz_status = strdup( "Authorization Required" );
1987
1988                             p += sprintf( p, "<html>\n" );
1989                             p += sprintf( p, "<head>\n" );
1990                             p += sprintf( p, "<title>Error 401</title>\n" );
1991                             p += sprintf( p, "</head>\n" );
1992                             p += sprintf( p, "<body>\n" );
1993                             p += sprintf( p, "<h1><center> 401 Authorization Required (%s)</center></h1>\n", query->psz_url );
1994                             p += sprintf( p, "<hr />\n" );
1995                             p += sprintf( p, "<a href=\"http://www.videolan.org\">VideoLAN</a>\n" );
1996                             p += sprintf( p, "</body>\n" );
1997                             p += sprintf( p, "</html>\n" );
1998                         }
1999                         else
2000                         {
2001                             /* no url registered */
2002                             answer->i_status = 404;
2003                             answer->psz_status = strdup( "Not found" );
2004
2005                             p += sprintf( p, "<html>\n" );
2006                             p += sprintf( p, "<head>\n" );
2007                             p += sprintf( p, "<title>Error 404</title>\n" );
2008                             p += sprintf( p, "</head>\n" );
2009                             p += sprintf( p, "<body>\n" );
2010                             p += sprintf( p, "<h1><center> 404 Ressource not found(%s)</center></h1>\n", query->psz_url );
2011                             p += sprintf( p, "<hr />\n" );
2012                             p += sprintf( p, "<a href=\"http://www.videolan.org\">VideoLAN</a>\n" );
2013                             p += sprintf( p, "</body>\n" );
2014                             p += sprintf( p, "</html>\n" );
2015                         }
2016
2017                         answer->i_body = p - answer->p_body;
2018                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2019                     }
2020                     cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2021                     cl->i_state = HTTPD_CLIENT_SENDING;
2022                 }
2023             }
2024             else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2025             {
2026                 if( cl->i_mode == HTTPD_CLIENT_FILE )
2027                 {
2028                     cl->url = NULL;
2029                     if( ( cl->query.i_proto == HTTPD_PROTO_HTTP &&
2030                           ( ( cl->answer.i_version == 0 && !strcasecmp( httpd_MsgGet( &cl->answer, "Connection" ), "Keep-Alive" ) ) ||
2031                             ( cl->answer.i_version == 1 &&  strcasecmp( httpd_MsgGet( &cl->answer, "Connection" ), "Close" ) ) ) ) ||
2032                         ( cl->query.i_proto == HTTPD_PROTO_RTSP &&
2033                           strcasecmp( httpd_MsgGet( &cl->query, "Connection" ), "Close" ) &&
2034                           strcasecmp( httpd_MsgGet( &cl->answer, "Connection" ), "Close" ) ) )
2035                     {
2036                         httpd_MsgClean( &cl->query );
2037                         httpd_MsgInit( &cl->query );
2038
2039                         cl->i_buffer = 0;
2040                         cl->i_buffer_size = 1000;
2041                         free( cl->p_buffer );
2042                         cl->p_buffer = malloc( cl->i_buffer_size );
2043                         cl->i_state = HTTPD_CLIENT_RECEIVING;
2044                     }
2045                     else
2046                     {
2047                         cl->i_state = HTTPD_CLIENT_DEAD;
2048                     }
2049                     httpd_MsgClean( &cl->answer );
2050                 }
2051                 else if( cl->b_read_waiting )
2052                 {
2053                     /* we have a message waiting for us to read it */
2054                     httpd_MsgClean( &cl->answer );
2055                     httpd_MsgClean( &cl->query );
2056
2057                     cl->i_buffer = 0;
2058                     cl->i_buffer_size = 1000;
2059                     free( cl->p_buffer );
2060                     cl->p_buffer = malloc( cl->i_buffer_size );
2061                     cl->i_state = HTTPD_CLIENT_RECEIVING;
2062                     cl->b_read_waiting = VLC_FALSE;
2063                 }
2064                 else
2065                 {
2066                     int64_t i_offset = cl->answer.i_body_offset;
2067                     httpd_MsgClean( &cl->answer );
2068
2069                     cl->answer.i_body_offset = i_offset;
2070                     free( cl->p_buffer );
2071                     cl->p_buffer = NULL;
2072                     cl->i_buffer = 0;
2073                     cl->i_buffer_size = 0;
2074
2075                     cl->i_state = HTTPD_CLIENT_WAITING;
2076                 }
2077             }
2078             else if( cl->i_state == HTTPD_CLIENT_WAITING )
2079             {
2080                 int64_t i_offset = cl->answer.i_body_offset;
2081                 int     i_msg = cl->query.i_type;
2082
2083                 httpd_MsgInit( &cl->answer );
2084                 cl->answer.i_body_offset = i_offset;
2085
2086                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2087                                           &cl->answer, &cl->query );
2088                 if( cl->answer.i_type != HTTPD_MSG_NONE )
2089                 {
2090                     /* we have new data, so reenter send mode */
2091                     cl->i_buffer      = 0;
2092                     cl->p_buffer      = cl->answer.p_body;
2093                     cl->i_buffer_size = cl->answer.i_body;
2094                     cl->answer.p_body = NULL;
2095                     cl->answer.i_body = 0;
2096                     cl->i_state = HTTPD_CLIENT_SENDING;
2097                 }
2098                 else
2099                 {
2100                     /* we shouldn't wait too long */
2101                     b_low_delay = VLC_TRUE;
2102                 }
2103             }
2104
2105             /* Special for BIDIR mode we also check reading */
2106             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2107                 cl->i_state == HTTPD_CLIENT_SENDING )
2108             {
2109                 FD_SET( cl->fd, &fds_read );
2110                 i_handle_max = __MAX( i_handle_max, cl->fd );
2111             }
2112         }
2113         vlc_mutex_unlock( &host->lock );
2114
2115         /* we will wait 100ms or 20ms (not too big 'cause HTTPD_CLIENT_WAITING) */
2116         timeout.tv_sec = 0;
2117         timeout.tv_usec = b_low_delay ? 20000 : 100000;
2118
2119         i_ret = select( i_handle_max + 1,
2120                         &fds_read, &fds_write, NULL, &timeout );
2121
2122         if( i_ret == -1 && errno != EINTR )
2123         {
2124             msg_Warn( host, "cannot select sockets" );
2125             msleep( 1000 );
2126             continue;
2127         }
2128         else if( i_ret <= 0 )
2129         {
2130             continue;
2131         }
2132
2133         /* accept new connections */
2134         if( FD_ISSET( host->fd, &fds_read ) )
2135         {
2136             int     i_sock_size = sizeof( struct sockaddr_in );
2137             struct  sockaddr_in sock;
2138             int     fd;
2139
2140             fd = accept( host->fd, (struct sockaddr *)&sock, &i_sock_size );
2141             if( fd > 0 )
2142             {
2143                 httpd_client_t *cl = httpd_ClientNew( fd, &sock );
2144
2145                 vlc_mutex_lock( &host->lock );
2146                 TAB_APPEND( host->i_client, host->client, cl );
2147                 vlc_mutex_unlock( &host->lock );
2148
2149                 msg_Dbg( host, "new connection (%s)",
2150                          inet_ntoa(sock.sin_addr) );
2151             }
2152         }
2153         /* now try all others socket */
2154         vlc_mutex_lock( &host->lock );
2155         for( i_client = 0; i_client < host->i_client; i_client++ )
2156         {
2157             httpd_client_t *cl = host->client[i_client];
2158             if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2159             {
2160                 httpd_ClientRecv( cl );
2161             }
2162             else if( cl->i_state == HTTPD_CLIENT_SENDING )
2163             {
2164                 httpd_ClientSend( cl );
2165             }
2166
2167             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2168                 cl->i_state == HTTPD_CLIENT_SENDING &&
2169                 FD_ISSET( cl->fd, &fds_read ) )
2170             {
2171                 cl->b_read_waiting = VLC_TRUE;
2172             }
2173         }
2174         vlc_mutex_unlock( &host->lock );
2175     }
2176 }
2177
2178 static int BuildAddr( struct sockaddr_in * p_socket,
2179                       const char * psz_address, int i_port )
2180 {
2181     /* Reset struct */
2182     memset( p_socket, 0, sizeof( struct sockaddr_in ) );
2183     p_socket->sin_family = AF_INET;                                /* family */
2184     p_socket->sin_port = htons( (uint16_t)i_port );
2185     if( !*psz_address )
2186     {
2187         p_socket->sin_addr.s_addr = INADDR_ANY;
2188     }
2189     else
2190     {
2191         struct hostent    * p_hostent;
2192
2193         /* Try to convert address directly from in_addr - this will work if
2194          * psz_address is dotted decimal. */
2195 #ifdef HAVE_ARPA_INET_H
2196         if( !inet_aton( psz_address, &p_socket->sin_addr ) )
2197 #else
2198         p_socket->sin_addr.s_addr = inet_addr( psz_address );
2199         if( p_socket->sin_addr.s_addr == INADDR_NONE )
2200 #endif
2201         {
2202             /* We have a fqdn, try to find its address */
2203             if ( (p_hostent = gethostbyname( psz_address )) == NULL )
2204             {
2205                 return( -1 );
2206             }
2207
2208             /* Copy the first address of the host in the socket address */
2209             memcpy( &p_socket->sin_addr, p_hostent->h_addr_list[0],
2210                      p_hostent->h_length );
2211         }
2212     }
2213     return( 0 );
2214 }