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

   1 /*****************************************************************************
   2  * httpd.c
   3  *****************************************************************************
   4  * Copyright (C) 2004-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Rémi Denis-Courmont <rem # videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #include <vlc/vlc.h>
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29
  30 #ifdef ENABLE_HTTPD
  31
  32 #include <assert.h>
  33
  34 #include <vlc_httpd.h>
  35 #include <vlc_network.h>
  36 #include <vlc_tls.h>
  37 #include <vlc_acl.h>
  38 #include "../libvlc.h"
  39
  40 #include <string.h>
  41 #include <errno.h>
  42
  43 #ifdef HAVE_UNISTD_H
  44 #   include <unistd.h>
  45 #endif
  46
  47 #ifdef HAVE_FCNTL_H
  48 #   include <fcntl.h>
  49 #endif
  50
  51 #ifdef HAVE_POLL
  52 # include <poll.h>
  53 #endif
  54
  55 #if defined( UNDER_CE )
  56 #   include <winsock.h>
  57 #elif defined( WIN32 )
  58 #   include <winsock2.h>
  59 #else
  60 #   include <sys/socket.h>
  61 #endif
  62
  63 #if defined( WIN32 )
  64 /* We need HUGE buffer otherwise TCP throughput is very limited */
  65 #define HTTPD_CL_BUFSIZE 1000000
  66 #else
  67 #define HTTPD_CL_BUFSIZE 10000
  68 #endif
  69
  70 static void httpd_ClientClean( httpd_client_t *cl );
  71
  72 struct httpd_t
  73 {
  74     VLC_COMMON_MEMBERS
  75
  76     int          i_host;
  77     httpd_host_t **host;
  78 };
  79
  80
  81 /* each host run in his own thread */
  82 struct httpd_host_t
  83 {
  84     VLC_COMMON_MEMBERS
  85
  86     httpd_t     *httpd;
  87
  88     /* ref count */
  89     int         i_ref;
  90
  91     /* address/port and socket for listening at connections */
  92     char        *psz_hostname;
  93     int         i_port;
  94     int         *fds;
  95     unsigned     nfd;
  96
  97     /* Statistics */
  98     counter_t *p_active_counter;
  99     counter_t *p_total_counter;
 100
 101     vlc_mutex_t lock;
 102
 103     /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
 104      * This will slow down the url research but make my live easier
 105      * All url will have their cb trigger, but only the first one can answer
 106      * */
 107     int         i_url;
 108     httpd_url_t **url;
 109
 110     int            i_client;
 111     httpd_client_t **client;
 112
 113     /* TLS data */
 114     tls_server_t *p_tls;
 115 };
 116
 117
 118 struct httpd_url_t
 119 {
 120     httpd_host_t *host;
 121
 122     vlc_mutex_t lock;
 123
 124     char      *psz_url;
 125     char      *psz_user;
 126     char      *psz_password;
 127     vlc_acl_t *p_acl;
 128
 129     struct
 130     {
 131         httpd_callback_t     cb;
 132         httpd_callback_sys_t *p_sys;
 133     } catch[HTTPD_MSG_MAX];
 134 };
 135
 136 /* status */
 137 enum
 138 {
 139     HTTPD_CLIENT_RECEIVING,
 140     HTTPD_CLIENT_RECEIVE_DONE,
 141
 142     HTTPD_CLIENT_SENDING,
 143     HTTPD_CLIENT_SEND_DONE,
 144
 145     HTTPD_CLIENT_WAITING,
 146
 147     HTTPD_CLIENT_DEAD,
 148
 149     HTTPD_CLIENT_TLS_HS_IN,
 150     HTTPD_CLIENT_TLS_HS_OUT
 151 };
 152
 153 /* mode */
 154 enum
 155 {
 156     HTTPD_CLIENT_FILE,      /* default */
 157     HTTPD_CLIENT_STREAM,    /* regulary get data from cb */
 158     HTTPD_CLIENT_BIDIR,     /* check for reading and get data from cb */
 159 };
 160
 161 struct httpd_client_t
 162 {
 163     httpd_url_t *url;
 164
 165     int     i_ref;
 166
 167     struct  sockaddr_storage sock;
 168     int     i_sock_size;
 169     int     fd;
 170
 171     int     i_mode;
 172     int     i_state;
 173     int     b_read_waiting; /* stop as soon as possible sending */
 174
 175     mtime_t i_activity_date;
 176     mtime_t i_activity_timeout;
 177
 178     /* buffer for reading header */
 179     int     i_buffer_size;
 180     int     i_buffer;
 181     uint8_t *p_buffer;
 182
 183     /* */
 184     httpd_message_t query;  /* client -> httpd */
 185     httpd_message_t answer; /* httpd -> client */
 186
 187     /* TLS data */
 188     tls_session_t *p_tls;
 189 };
 190
 191
 192 /*****************************************************************************
 193  * Various functions
 194  *****************************************************************************/
 195 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
 196 static void b64_decode( char *restrict dest, const char *restrict src )
 197 {
 198     int  i_level;
 199     int  last = 0;
 200     int  b64[256] = {
 201         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
 202         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
 203         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
 204         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
 205         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
 206         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
 207         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
 208         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
 209         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
 210         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
 211         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
 212         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
 213         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
 214         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
 215         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
 216         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
 217         };
 218
 219     for( i_level = 0; *src != '\0'; src++ )
 220     {
 221         int  c;
 222
 223         c = b64[(unsigned int)*src];
 224         if( c == -1 )
 225         {
 226             continue;
 227         }
 228
 229         switch( i_level )
 230         {
 231             case 0:
 232                 i_level++;
 233                 break;
 234             case 1:
 235                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
 236                 i_level++;
 237                 break;
 238             case 2:
 239                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
 240                 i_level++;
 241                 break;
 242             case 3:
 243                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
 244                 i_level = 0;
 245         }
 246         last = c;
 247     }
 248
 249     *dest = '\0';
 250 }
 251
 252 static struct
 253 {
 254     const char *psz_ext;
 255     const char *psz_mime;
 256 } http_mime[] =
 257 {
 258     { ".htm",   "text/html" },
 259     { ".html",  "text/html" },
 260     { ".txt",   "text/plain" },
 261     { ".xml",   "text/xml" },
 262     { ".dtd",   "text/dtd" },
 263
 264     { ".css",   "text/css" },
 265
 266     /* image mime */
 267     { ".gif",   "image/gif" },
 268     { ".jpe",   "image/jpeg" },
 269     { ".jpg",   "image/jpeg" },
 270     { ".jpeg",  "image/jpeg" },
 271     { ".png",   "image/png" },
 272     { ".mpjpeg","multipart/x-mixed-replace; boundary=This Random String" },
 273
 274     /* media mime */
 275     { ".avi",   "video/avi" },
 276     { ".asf",   "video/x-ms-asf" },
 277     { ".m1a",   "audio/mpeg" },
 278     { ".m2a",   "audio/mpeg" },
 279     { ".m1v",   "video/mpeg" },
 280     { ".m2v",   "video/mpeg" },
 281     { ".mp2",   "audio/mpeg" },
 282     { ".mp3",   "audio/mpeg" },
 283     { ".mpa",   "audio/mpeg" },
 284     { ".mpg",   "video/mpeg" },
 285     { ".mpeg",  "video/mpeg" },
 286     { ".mpe",   "video/mpeg" },
 287     { ".mov",   "video/quicktime" },
 288     { ".moov",  "video/quicktime" },
 289     { ".ogg",   "application/ogg" },
 290     { ".ogm",   "application/ogg" },
 291     { ".wav",   "audio/wav" },
 292     { ".wma",   "audio/x-ms-wma" },
 293     { ".wmv",   "video/x-ms-wmv" },
 294
 295
 296     /* end */
 297     { NULL,     NULL }
 298 };
 299
 300 static const char *httpd_MimeFromUrl( const char *psz_url )
 301 {
 302
 303     char *psz_ext;
 304
 305     psz_ext = strrchr( psz_url, '.' );
 306     if( psz_ext )
 307     {
 308         int i;
 309
 310         for( i = 0; http_mime[i].psz_ext != NULL ; i++ )
 311         {
 312             if( !strcasecmp( http_mime[i].psz_ext, psz_ext ) )
 313             {
 314                 return http_mime[i].psz_mime;
 315             }
 316         }
 317     }
 318     return "application/octet-stream";
 319 }
 320
 321
 322 typedef struct
 323 {
 324     int i_code;
 325     const char *psz_reason;
 326 } http_status_info;
 327
 328 static const http_status_info http_reason[] =
 329 {
 330   /*{ 100, "Continue" },
 331     { 101, "Switching Protocols" },*/
 332     { 200, "OK" }/*,
 333     { 201, "Created" },
 334     { 202, "Accepted" },
 335     { 203, "Non-Authoritative Information" },
 336     { 204, "No Content" },
 337     { 205, "Reset Content" },
 338     { 206, "Partial Content" },
 339     { 250, "Low on Storage Space" },
 340     { 300, "Multiple Choices" }*/,
 341     { 301, "Moved Permanently" }/*,
 342     { 302, "Moved Temporarily" }, - aka "Found"
 343     { 303, "See Other" },
 344     { 304, "Not Modified" },
 345     { 305, "Use Proxy" },
 346     { 307, "Temporary Redirect" },
 347     { 400, "Bad Request" }*/,
 348     { 401, "Unauthorized" }/*,
 349     { 402, "Payment Required" }*/,
 350     { 403, "Forbidden" },
 351     { 404, "Not Found" }/*,
 352     { 405, "Method Not Allowed" },
 353     { 406, "Not Acceptable" },
 354     { 407, "Proxy Authentication Required" },
 355     { 408, "Request Time-out" },
 356     { 409, "Conflict" },
 357     { 410, "Gone" },
 358     { 411, "Length Required" },
 359     { 412, "Precondition Failed" },
 360     { 413, "Request Entity Too Large" },
 361     { 414, "Request-URI Too Large" },
 362     { 415, "Unsupported Media Type" },
 363     { 416, "Requested range not satisfiable" },
 364     { 417, "Expectation Failed" },
 365     { 451, "Parameter Not Understood" },
 366     { 452, "Conference Not Found" },
 367     { 453, "Not Enough Bandwidth" }*/,
 368     { 454, "Session Not Found" }/*,
 369     { 455, "Method Not Valid in This State" },
 370     { 456, "Header Field Not Valid for Resource" },
 371     { 457, "Invalid Range" },
 372     { 458, "Parameter Is Read-Only" },
 373     { 459, "Aggregate operation not allowed" },
 374     { 460, "Only aggregate operation allowed" }*/,
 375     { 461, "Unsupported transport" }/*,
 376     { 462, "Destination unreachable" }*/,
 377     { 500, "Internal Server Error" },
 378     { 501, "Not Implemented" }/*,
 379     { 502, "Bad Gateway" }*/,
 380     { 503, "Service Unavailable" }/*,
 381     { 504, "Gateway Time-out" },
 382     { 505, "Protocol version not supported" }*/,
 383     {   0, NULL }
 384 };
 385
 386 static const char *psz_fallback_reason[] =
 387 { "Continue", "OK", "Found", "Client Error", "Server Error" };
 388
 389 static const char *httpd_ReasonFromCode( int i_code )
 390 {
 391     const http_status_info *p;
 392
 393     for (p = http_reason; p->i_code < i_code; p++);
 394
 395     if( p->i_code == i_code )
 396         return p->psz_reason;
 397
 398     assert( ( i_code >= 100 ) && ( i_code <= 599 ) );
 399     return psz_fallback_reason[(i_code / 100) - 1];
 400 }
 401
 402
 403 static size_t httpd_HtmlError (char **body, int code, const char *url)
 404 {
 405     const char *errname = httpd_ReasonFromCode (code);
 406     assert (errname != NULL);
 407
 408     int res = asprintf (body,
 409         "<?xml version=\"1.0\" encoding=\"ascii\" ?>\n"
 410         "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\""
 411         " \"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
 412         "<html lang=\"en\">\n"
 413         "<head>\n"
 414         "<title>%s</title>\n"
 415         "</head>\n"
 416         "<body>\n"
 417         "<h1>%d %s%s%s%s</h1>\n"
 418         "<hr />\n"
 419         "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
 420         "</body>\n"
 421         "</html>\n", errname, code, errname,
 422         (url ? " (" : ""), (url ?: ""), (url ? ")" : ""));
 423
 424     if (res == -1)
 425     {
 426         *body = NULL;
 427         return 0;
 428     }
 429
 430     return (size_t)res;
 431 }
 432
 433
 434 /*****************************************************************************
 435  * High Level Functions: httpd_file_t
 436  *****************************************************************************/
 437 struct httpd_file_t
 438 {
 439     httpd_url_t *url;
 440
 441     char *psz_url;
 442     char *psz_mime;
 443
 444     httpd_file_callback_t pf_fill;
 445     httpd_file_sys_t      *p_sys;
 446
 447 };
 448
 449 static int httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl, httpd_message_t *answer, httpd_message_t *query )
 450 {
 451     httpd_file_t *file = (httpd_file_t*)p_sys;
 452     uint8_t *psz_args = query->psz_args;
 453     uint8_t **pp_body, *p_body;
 454     const char *psz_connection;
 455     int *pi_body, i_body;
 456
 457     if( answer == NULL || query == NULL )
 458     {
 459         return VLC_SUCCESS;
 460     }
 461     answer->i_proto  = HTTPD_PROTO_HTTP;
 462     answer->i_version= query->i_version;
 463     answer->i_type   = HTTPD_MSG_ANSWER;
 464
 465     answer->i_status = 200;
 466     answer->psz_status = strdup( "OK" );
 467
 468     httpd_MsgAdd( answer, "Content-type",  "%s", file->psz_mime );
 469     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 470
 471     if( query->i_type != HTTPD_MSG_HEAD )
 472     {
 473         pp_body = &answer->p_body;
 474         pi_body = &answer->i_body;
 475     }
 476     else
 477     {
 478         /* The file still needs to be executed. */
 479         p_body = NULL;
 480         i_body = 0;
 481         pp_body = &p_body;
 482         pi_body = &i_body;
 483     }
 484
 485     if( query->i_type == HTTPD_MSG_POST )
 486     {
 487         /* msg_Warn not supported */
 488     }
 489
 490     file->pf_fill( file->p_sys, file, psz_args, pp_body, pi_body );
 491
 492     if( query->i_type == HTTPD_MSG_HEAD && p_body != NULL )
 493     {
 494         free( p_body );
 495     }
 496
 497     /* We respect client request */
 498     psz_connection = httpd_MsgGet( &cl->query, "Connection" );
 499     if( psz_connection != NULL )
 500     {
 501         httpd_MsgAdd( answer, "Connection", psz_connection );
 502     }
 503
 504     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 505
 506     return VLC_SUCCESS;
 507 }
 508
 509 httpd_file_t *httpd_FileNew( httpd_host_t *host,
 510                              const char *psz_url, const char *psz_mime,
 511                              const char *psz_user, const char *psz_password,
 512                              const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
 513                              httpd_file_sys_t *p_sys )
 514 {
 515     httpd_file_t *file = malloc( sizeof( httpd_file_t ) );
 516
 517     if( ( file->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 518                                           psz_password, p_acl )
 519         ) == NULL )
 520     {
 521         free( file );
 522         return NULL;
 523     }
 524
 525     file->psz_url  = strdup( psz_url );
 526     if( psz_mime && *psz_mime )
 527     {
 528         file->psz_mime = strdup( psz_mime );
 529     }
 530     else
 531     {
 532         file->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 533     }
 534
 535     file->pf_fill = pf_fill;
 536     file->p_sys   = p_sys;
 537
 538     httpd_UrlCatch( file->url, HTTPD_MSG_HEAD, httpd_FileCallBack,
 539                     (httpd_callback_sys_t*)file );
 540     httpd_UrlCatch( file->url, HTTPD_MSG_GET,  httpd_FileCallBack,
 541                     (httpd_callback_sys_t*)file );
 542     httpd_UrlCatch( file->url, HTTPD_MSG_POST, httpd_FileCallBack,
 543                     (httpd_callback_sys_t*)file );
 544
 545     return file;
 546 }
 547
 548 void httpd_FileDelete( httpd_file_t *file )
 549 {
 550     httpd_UrlDelete( file->url );
 551
 552     free( file->psz_url );
 553     free( file->psz_mime );
 554
 555     free( file );
 556 }
 557
 558 /*****************************************************************************
 559  * High Level Functions: httpd_handler_t (for CGIs)
 560  *****************************************************************************/
 561 struct httpd_handler_t
 562 {
 563     httpd_url_t *url;
 564
 565     httpd_handler_callback_t pf_fill;
 566     httpd_handler_sys_t      *p_sys;
 567
 568 };
 569
 570 static int httpd_HandlerCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl, httpd_message_t *answer, httpd_message_t *query )
 571 {
 572     httpd_handler_t *handler = (httpd_handler_t*)p_sys;
 573     uint8_t *psz_args = query->psz_args;
 574     char psz_remote_addr[NI_MAXNUMERICHOST];
 575
 576     if( answer == NULL || query == NULL )
 577     {
 578         return VLC_SUCCESS;
 579     }
 580     answer->i_proto  = HTTPD_PROTO_NONE;
 581     answer->i_type   = HTTPD_MSG_ANSWER;
 582
 583     /* We do it ourselves, thanks */
 584     answer->i_status = 0;
 585     answer->psz_status = NULL;
 586
 587     if( httpd_ClientIP( cl, psz_remote_addr ) == NULL )
 588         *psz_remote_addr = '\0';
 589
 590     handler->pf_fill( handler->p_sys, handler, query->psz_url, psz_args,
 591                       query->i_type, query->p_body, query->i_body,
 592                       psz_remote_addr, NULL,
 593                       &answer->p_body, &answer->i_body );
 594
 595     if( query->i_type == HTTPD_MSG_HEAD )
 596     {
 597         char *p = (char *)answer->p_body;
 598         while ( (p = strchr( p, '\r' )) != NULL )
 599         {
 600             if( p[1] && p[1] == '\n' && p[2] && p[2] == '\r'
 601                  && p[3] && p[3] == '\n' )
 602             {
 603                 break;
 604             }
 605         }
 606         if( p != NULL )
 607         {
 608             p[4] = '\0';
 609             answer->i_body = strlen((char*)answer->p_body) + 1;
 610             answer->p_body = realloc( answer->p_body, answer->i_body );
 611         }
 612     }
 613
 614     if( strncmp( (char *)answer->p_body, "HTTP/1.", 7 ) )
 615     {
 616         int i_status, i_headers;
 617         char *psz_headers, *psz_new;
 618         const char *psz_status;
 619
 620         if( !strncmp( (char *)answer->p_body, "Status: ", 8 ) )
 621         {
 622             /* Apache-style */
 623             i_status = strtol( (char *)&answer->p_body[8], &psz_headers, 0 );
 624             if( *psz_headers ) psz_headers++;
 625             if( *psz_headers ) psz_headers++;
 626             i_headers = answer->i_body - (psz_headers - (char *)answer->p_body);
 627         }
 628         else
 629         {
 630             i_status = 200;
 631             psz_headers = (char *)answer->p_body;
 632             i_headers = answer->i_body;
 633         }
 634         switch( i_status )
 635         {
 636         case 200:
 637             psz_status = "OK";
 638             break;
 639         case 401:
 640             psz_status = "Unauthorized";
 641             break;
 642         default:
 643             if( (i_status < 0) || (i_status > 999) )
 644                 i_status = 500;
 645             psz_status = "Undefined";
 646             break;
 647         }
 648         answer->i_body = sizeof("HTTP/1.0 xxx \r\n")
 649                         + strlen(psz_status) + i_headers - 1;
 650         psz_new = (char *)malloc( answer->i_body + 1);
 651         sprintf( psz_new, "HTTP/1.0 %03d %s\r\n", i_status, psz_status );
 652         memcpy( &psz_new[strlen(psz_new)], psz_headers, i_headers );
 653         free( answer->p_body );
 654         answer->p_body = (uint8_t *)psz_new;
 655     }
 656
 657     return VLC_SUCCESS;
 658 }
 659
 660 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
 661                                    const char *psz_user,
 662                                    const char *psz_password,
 663                                    const vlc_acl_t *p_acl,
 664                                    httpd_handler_callback_t pf_fill,
 665                                    httpd_handler_sys_t *p_sys )
 666 {
 667     httpd_handler_t *handler = malloc( sizeof( httpd_handler_t ) );
 668
 669     if( ( handler->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 670                                              psz_password, p_acl )
 671         ) == NULL )
 672     {
 673         free( handler );
 674         return NULL;
 675     }
 676
 677     handler->pf_fill = pf_fill;
 678     handler->p_sys   = p_sys;
 679
 680     httpd_UrlCatch( handler->url, HTTPD_MSG_HEAD, httpd_HandlerCallBack,
 681                     (httpd_callback_sys_t*)handler );
 682     httpd_UrlCatch( handler->url, HTTPD_MSG_GET,  httpd_HandlerCallBack,
 683                     (httpd_callback_sys_t*)handler );
 684     httpd_UrlCatch( handler->url, HTTPD_MSG_POST, httpd_HandlerCallBack,
 685                     (httpd_callback_sys_t*)handler );
 686
 687     return handler;
 688 }
 689
 690 void httpd_HandlerDelete( httpd_handler_t *handler )
 691 {
 692     httpd_UrlDelete( handler->url );
 693     free( handler );
 694 }
 695
 696 /*****************************************************************************
 697  * High Level Functions: httpd_redirect_t
 698  *****************************************************************************/
 699 struct httpd_redirect_t
 700 {
 701     httpd_url_t *url;
 702     char        *psz_dst;
 703 };
 704
 705 static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
 706                                    httpd_client_t *cl, httpd_message_t *answer,
 707                                    httpd_message_t *query )
 708 {
 709     httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
 710     char *p_body;
 711
 712     if( answer == NULL || query == NULL )
 713     {
 714         return VLC_SUCCESS;
 715     }
 716     answer->i_proto  = query->i_proto;
 717     answer->i_version= query->i_version;
 718     answer->i_type   = HTTPD_MSG_ANSWER;
 719     answer->i_status = 301;
 720     answer->psz_status = strdup( "Moved Permanently" );
 721
 722     answer->i_body = httpd_HtmlError (&p_body, 301, rdir->psz_dst);
 723     answer->p_body = (unsigned char *)p_body;
 724
 725     /* XXX check if it's ok or we need to set an absolute url */
 726     httpd_MsgAdd( answer, "Location",  "%s", rdir->psz_dst );
 727
 728     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 729
 730     return VLC_SUCCESS;
 731 }
 732
 733 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
 734                                      const char *psz_url_src )
 735 {
 736     httpd_redirect_t *rdir = malloc( sizeof( httpd_redirect_t ) );
 737
 738     if( !( rdir->url = httpd_UrlNewUnique( host, psz_url_src, NULL, NULL, NULL ) ) )
 739     {
 740         free( rdir );
 741         return NULL;
 742     }
 743     rdir->psz_dst = strdup( psz_url_dst );
 744
 745     /* Redirect apply for all HTTP request and RTSP DESCRIBE resquest */
 746     httpd_UrlCatch( rdir->url, HTTPD_MSG_HEAD, httpd_RedirectCallBack,
 747                     (httpd_callback_sys_t*)rdir );
 748     httpd_UrlCatch( rdir->url, HTTPD_MSG_GET, httpd_RedirectCallBack,
 749                     (httpd_callback_sys_t*)rdir );
 750     httpd_UrlCatch( rdir->url, HTTPD_MSG_POST, httpd_RedirectCallBack,
 751                     (httpd_callback_sys_t*)rdir );
 752     httpd_UrlCatch( rdir->url, HTTPD_MSG_DESCRIBE, httpd_RedirectCallBack,
 753                     (httpd_callback_sys_t*)rdir );
 754
 755     return rdir;
 756 }
 757 void httpd_RedirectDelete( httpd_redirect_t *rdir )
 758 {
 759     httpd_UrlDelete( rdir->url );
 760     free( rdir->psz_dst );
 761     free( rdir );
 762 }
 763
 764 /*****************************************************************************
 765  * High Level Funtions: httpd_stream_t
 766  *****************************************************************************/
 767 struct httpd_stream_t
 768 {
 769     vlc_mutex_t lock;
 770     httpd_url_t *url;
 771
 772     char    *psz_mime;
 773
 774     /* Header to send as first packet */
 775     uint8_t *p_header;
 776     int     i_header;
 777
 778     /* circular buffer */
 779     int         i_buffer_size;      /* buffer size, can't be reallocated smaller */
 780     uint8_t     *p_buffer;          /* buffer */
 781     int64_t     i_buffer_pos;       /* absolute position from begining */
 782     int64_t     i_buffer_last_pos;  /* a new connection will start with that */
 783 };
 784
 785 static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
 786                                  httpd_client_t *cl, httpd_message_t *answer,
 787                                  httpd_message_t *query )
 788 {
 789     httpd_stream_t *stream = (httpd_stream_t*)p_sys;
 790
 791     if( answer == NULL || query == NULL || cl == NULL )
 792     {
 793         return VLC_SUCCESS;
 794     }
 795
 796     if( answer->i_body_offset > 0 )
 797     {
 798         int64_t i_write;
 799         int     i_pos;
 800
 801 #if 0
 802         fprintf( stderr, "httpd_StreamCallBack i_body_offset=%lld\n",
 803                  answer->i_body_offset );
 804 #endif
 805
 806         if( answer->i_body_offset >= stream->i_buffer_pos )
 807         {
 808             /* fprintf( stderr, "httpd_StreamCallBack: no data\n" ); */
 809             return VLC_EGENERIC;    /* wait, no data available */
 810         }
 811         if( answer->i_body_offset + stream->i_buffer_size <
 812             stream->i_buffer_pos )
 813         {
 814             /* this client isn't fast enough */
 815 #if 0
 816             fprintf( stderr, "fixing i_body_offset (old=%lld new=%lld)\n",
 817                      answer->i_body_offset, stream->i_buffer_last_pos );
 818 #endif
 819             answer->i_body_offset = stream->i_buffer_last_pos;
 820         }
 821
 822         i_pos   = answer->i_body_offset % stream->i_buffer_size;
 823         i_write = stream->i_buffer_pos - answer->i_body_offset;
 824         if( i_write > HTTPD_CL_BUFSIZE )
 825         {
 826             i_write = HTTPD_CL_BUFSIZE;
 827         }
 828         else if( i_write <= 0 )
 829         {
 830             return VLC_EGENERIC;    /* wait, no data available */
 831         }
 832
 833         /* Don't go past the end of the circular buffer */
 834         i_write = __MIN( i_write, stream->i_buffer_size - i_pos );
 835
 836         /* using HTTPD_MSG_ANSWER -> data available */
 837         answer->i_proto  = HTTPD_PROTO_HTTP;
 838         answer->i_version= 0;
 839         answer->i_type   = HTTPD_MSG_ANSWER;
 840
 841         answer->i_body = i_write;
 842         answer->p_body = malloc( i_write );
 843         memcpy( answer->p_body, &stream->p_buffer[i_pos], i_write );
 844
 845         answer->i_body_offset += i_write;
 846
 847         return VLC_SUCCESS;
 848     }
 849     else
 850     {
 851         answer->i_proto  = HTTPD_PROTO_HTTP;
 852         answer->i_version= 0;
 853         answer->i_type   = HTTPD_MSG_ANSWER;
 854
 855         answer->i_status = 200;
 856         answer->psz_status = strdup( "OK" );
 857
 858         if( query->i_type != HTTPD_MSG_HEAD )
 859         {
 860             httpd_ClientModeStream( cl );
 861             vlc_mutex_lock( &stream->lock );
 862             /* Send the header */
 863             if( stream->i_header > 0 )
 864             {
 865                 answer->i_body = stream->i_header;
 866                 answer->p_body = malloc( stream->i_header );
 867                 memcpy( answer->p_body, stream->p_header, stream->i_header );
 868             }
 869             answer->i_body_offset = stream->i_buffer_last_pos;
 870             vlc_mutex_unlock( &stream->lock );
 871         }
 872         else
 873         {
 874             httpd_MsgAdd( answer, "Content-Length", "%d", 0 );
 875             answer->i_body_offset = 0;
 876         }
 877
 878         if( !strcmp( stream->psz_mime, "video/x-ms-asf-stream" ) )
 879         {
 880             vlc_bool_t b_xplaystream = VLC_FALSE;
 881             int i;
 882
 883             httpd_MsgAdd( answer, "Content-type", "%s",
 884                           "application/octet-stream" );
 885             httpd_MsgAdd( answer, "Server", "Cougar 4.1.0.3921" );
 886             httpd_MsgAdd( answer, "Pragma", "no-cache" );
 887             httpd_MsgAdd( answer, "Pragma", "client-id=%d", rand()&0x7fff );
 888             httpd_MsgAdd( answer, "Pragma", "features=\"broadcast\"" );
 889
 890             /* Check if there is a xPlayStrm=1 */
 891             for( i = 0; i < query->i_name; i++ )
 892             {
 893                 if( !strcasecmp( query->name[i],  "Pragma" ) &&
 894                     strstr( query->value[i], "xPlayStrm=1" ) )
 895                 {
 896                     b_xplaystream = VLC_TRUE;
 897                 }
 898             }
 899
 900             if( !b_xplaystream )
 901             {
 902                 answer->i_body_offset = 0;
 903             }
 904         }
 905         else
 906         {
 907             httpd_MsgAdd( answer, "Content-type",  "%s", stream->psz_mime );
 908         }
 909         httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 910         return VLC_SUCCESS;
 911     }
 912 }
 913
 914 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
 915                                  const char *psz_url, const char *psz_mime,
 916                                  const char *psz_user, const char *psz_password,
 917                                  const vlc_acl_t *p_acl )
 918 {
 919     httpd_stream_t *stream = malloc( sizeof( httpd_stream_t ) );
 920
 921     if( ( stream->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 922                                             psz_password, p_acl )
 923         ) == NULL )
 924     {
 925         free( stream );
 926         return NULL;
 927     }
 928     vlc_mutex_init( host, &stream->lock );
 929     if( psz_mime && *psz_mime )
 930     {
 931         stream->psz_mime = strdup( psz_mime );
 932     }
 933     else
 934     {
 935         stream->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 936     }
 937     stream->i_header = 0;
 938     stream->p_header = NULL;
 939     stream->i_buffer_size = 5000000;    /* 5 Mo per stream */
 940     stream->p_buffer = malloc( stream->i_buffer_size );
 941     /* We set to 1 to make life simpler
 942      * (this way i_body_offset can never be 0) */
 943     stream->i_buffer_pos = 1;
 944     stream->i_buffer_last_pos = 1;
 945
 946     httpd_UrlCatch( stream->url, HTTPD_MSG_HEAD, httpd_StreamCallBack,
 947                     (httpd_callback_sys_t*)stream );
 948     httpd_UrlCatch( stream->url, HTTPD_MSG_GET, httpd_StreamCallBack,
 949                     (httpd_callback_sys_t*)stream );
 950     httpd_UrlCatch( stream->url, HTTPD_MSG_POST, httpd_StreamCallBack,
 951                     (httpd_callback_sys_t*)stream );
 952
 953     return stream;
 954 }
 955
 956 int httpd_StreamHeader( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 957 {
 958     vlc_mutex_lock( &stream->lock );
 959     if( stream->p_header )
 960     {
 961         free( stream->p_header );
 962         stream->p_header = NULL;
 963     }
 964     stream->i_header = i_data;
 965     if( i_data > 0 )
 966     {
 967         stream->p_header = malloc( i_data );
 968         memcpy( stream->p_header, p_data, i_data );
 969     }
 970     vlc_mutex_unlock( &stream->lock );
 971
 972     return VLC_SUCCESS;
 973 }
 974
 975 int httpd_StreamSend( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 976 {
 977     int i_count;
 978     int i_pos;
 979
 980     if( i_data < 0 || p_data == NULL )
 981     {
 982         return VLC_SUCCESS;
 983     }
 984     vlc_mutex_lock( &stream->lock );
 985
 986     /* save this pointer (to be used by new connection) */
 987     stream->i_buffer_last_pos = stream->i_buffer_pos;
 988
 989     i_pos = stream->i_buffer_pos % stream->i_buffer_size;
 990     i_count = i_data;
 991     while( i_count > 0)
 992     {
 993         int i_copy;
 994
 995         i_copy = __MIN( i_count, stream->i_buffer_size - i_pos );
 996
 997         /* Ok, we can't go past the end of our buffer */
 998         memcpy( &stream->p_buffer[i_pos], p_data, i_copy );
 999
1000         i_pos = ( i_pos + i_copy ) % stream->i_buffer_size;
1001         i_count -= i_copy;
1002         p_data  += i_copy;
1003     }
1004
1005     stream->i_buffer_pos += i_data;
1006
1007     vlc_mutex_unlock( &stream->lock );
1008     return VLC_SUCCESS;
1009 }
1010
1011 void httpd_StreamDelete( httpd_stream_t *stream )
1012 {
1013     httpd_UrlDelete( stream->url );
1014     vlc_mutex_destroy( &stream->lock );
1015     if( stream->psz_mime ) free( stream->psz_mime );
1016     if( stream->p_header ) free( stream->p_header );
1017     if( stream->p_buffer ) free( stream->p_buffer );
1018     free( stream );
1019 }
1020
1021 /*****************************************************************************
1022  * Low level
1023  *****************************************************************************/
1024 static void httpd_HostThread( httpd_host_t * );
1025
1026 /* create a new host */
1027 httpd_host_t *httpd_HostNew( vlc_object_t *p_this, const char *psz_host,
1028                              int i_port )
1029 {
1030     return httpd_TLSHostNew( p_this, psz_host, i_port, NULL, NULL, NULL, NULL
1031                            );
1032 }
1033
1034 static const char psz_object_type[] = "http server";
1035
1036 httpd_host_t *httpd_TLSHostNew( vlc_object_t *p_this, const char *psz_hostname,
1037                                 int i_port,
1038                                 const char *psz_cert, const char *psz_key,
1039                                 const char *psz_ca, const char *psz_crl )
1040 {
1041     httpd_t      *httpd;
1042     httpd_host_t *host;
1043     tls_server_t *p_tls;
1044     char *psz_host;
1045     vlc_value_t  lockval;
1046     int i;
1047
1048     if( psz_hostname == NULL )
1049         psz_hostname = "";
1050
1051     psz_host = strdup( psz_hostname );
1052     if( psz_host == NULL )
1053     {
1054         msg_Err( p_this, "memory error" );
1055         return NULL;
1056     }
1057
1058     /* to be sure to avoid multiple creation */
1059     var_Create( p_this->p_libvlc_global, "httpd_mutex", VLC_VAR_MUTEX );
1060     var_Get( p_this->p_libvlc_global, "httpd_mutex", &lockval );
1061     vlc_mutex_lock( lockval.p_address );
1062
1063     if( !(httpd = vlc_object_find( p_this, VLC_OBJECT_HTTPD, FIND_ANYWHERE )) )
1064     {
1065         msg_Info( p_this, "creating httpd" );
1066         httpd = (httpd_t *)vlc_custom_create( p_this, sizeof (*httpd),
1067                                               VLC_OBJECT_HTTPD,
1068                                               psz_object_type );
1069         if (httpd == NULL)
1070         {
1071             vlc_mutex_unlock( lockval.p_address );
1072             free( psz_host );
1073             return NULL;
1074         }
1075
1076         httpd->i_host = 0;
1077         httpd->host   = NULL;
1078
1079         vlc_object_yield( httpd );
1080         vlc_object_attach( httpd, p_this->p_libvlc );
1081     }
1082
1083     /* verify if it already exist */
1084     for( i = httpd->i_host - 1; i >= 0; i-- )
1085     {
1086         host = httpd->host[i];
1087
1088         /* cannot mix TLS and non-TLS hosts */
1089         if( ( ( httpd->host[i]->p_tls != NULL ) != ( psz_cert != NULL ) )
1090          || ( host->i_port != i_port )
1091          || strcmp( host->psz_hostname, psz_hostname ) )
1092             continue;
1093
1094         /* yep found */
1095         host->i_ref++;
1096
1097         vlc_mutex_unlock( lockval.p_address );
1098         return host;
1099     }
1100
1101     host = NULL;
1102
1103     /* determine TLS configuration */
1104     if ( psz_cert != NULL )
1105     {
1106         p_tls = tls_ServerCreate( p_this, psz_cert, psz_key );
1107         if ( p_tls == NULL )
1108         {
1109             msg_Err( p_this, "TLS initialization error" );
1110             goto error;
1111         }
1112
1113         if ( ( psz_ca != NULL) && tls_ServerAddCA( p_tls, psz_ca ) )
1114         {
1115             msg_Err( p_this, "TLS CA error" );
1116             goto error;
1117         }
1118
1119         if ( ( psz_crl != NULL) && tls_ServerAddCRL( p_tls, psz_crl ) )
1120         {
1121             msg_Err( p_this, "TLS CRL error" );
1122             goto error;
1123         }
1124     }
1125     else
1126         p_tls = NULL;
1127
1128     /* create the new host */
1129     host = (httpd_host_t *)vlc_custom_create( p_this, sizeof (*host),
1130                                               VLC_OBJECT_HTTPD_HOST,
1131                                               psz_object_type );
1132     if (host == NULL)
1133         goto error;
1134
1135     host->httpd = httpd;
1136     vlc_mutex_init( httpd, &host->lock );
1137     host->i_ref = 1;
1138
1139     host->fds = net_ListenTCP( p_this, psz_host, i_port );
1140     if( host->fds == NULL )
1141     {
1142         msg_Err( p_this, "cannot create socket(s) for HTTP host" );
1143         goto error;
1144     }
1145     for (host->nfd = 0; host->fds[host->nfd] != -1; host->nfd++);
1146
1147     host->i_port = i_port;
1148     host->psz_hostname = psz_host;
1149
1150     host->i_url     = 0;
1151     host->url       = NULL;
1152     host->i_client  = 0;
1153     host->client    = NULL;
1154
1155     host->p_tls = p_tls;
1156
1157     /* create the thread */
1158     if( vlc_thread_create( host, "httpd host thread", httpd_HostThread,
1159                            VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
1160     {
1161         msg_Err( p_this, "cannot spawn http host thread" );
1162         goto error;
1163     }
1164
1165     /* now add it to httpd */
1166     TAB_APPEND( httpd->i_host, httpd->host, host );
1167     vlc_mutex_unlock( lockval.p_address );
1168
1169     return host;
1170
1171 error:
1172     free( psz_host );
1173     if( httpd->i_host <= 0 )
1174     {
1175         vlc_object_release( httpd );
1176         vlc_object_detach( httpd );
1177         vlc_object_destroy( httpd );
1178     }
1179     vlc_mutex_unlock( lockval.p_address );
1180
1181     if( host != NULL )
1182     {
1183         net_ListenClose( host->fds );
1184         vlc_mutex_destroy( &host->lock );
1185         vlc_object_destroy( host );
1186     }
1187
1188     if( p_tls != NULL )
1189         tls_ServerDelete( p_tls );
1190
1191     return NULL;
1192 }
1193
1194 /* delete a host */
1195 void httpd_HostDelete( httpd_host_t *host )
1196 {
1197     httpd_t *httpd = host->httpd;
1198     vlc_value_t lockval;
1199     int i;
1200
1201     var_Get( httpd->p_libvlc_global, "httpd_mutex", &lockval );
1202     vlc_mutex_lock( lockval.p_address );
1203
1204     host->i_ref--;
1205     if( host->i_ref > 0 )
1206     {
1207         /* still used */
1208         vlc_mutex_unlock( lockval.p_address );
1209         msg_Dbg( host, "httpd_HostDelete: host still used" );
1210         return;
1211     }
1212     TAB_REMOVE( httpd->i_host, httpd->host, host );
1213
1214     host->b_die = 1;
1215     vlc_thread_join( host );
1216
1217     msg_Dbg( host, "HTTP host removed" );
1218
1219     for( i = 0; i < host->i_url; i++ )
1220     {
1221         msg_Err( host, "url still registered: %s", host->url[i]->psz_url );
1222     }
1223     for( i = 0; i < host->i_client; i++ )
1224     {
1225         httpd_client_t *cl = host->client[i];
1226         msg_Warn( host, "client still connected" );
1227         httpd_ClientClean( cl );
1228         TAB_REMOVE( host->i_client, host->client, cl );
1229         free( cl );
1230         i--;
1231         /* TODO */
1232     }
1233
1234     if( host->p_tls != NULL)
1235         tls_ServerDelete( host->p_tls );
1236
1237     net_ListenClose( host->fds );
1238     free( host->psz_hostname );
1239
1240     vlc_mutex_destroy( &host->lock );
1241     vlc_object_destroy( host );
1242
1243     vlc_object_release( httpd );
1244     if( httpd->i_host <= 0 )
1245     {
1246         msg_Dbg( httpd, "no host left, stopping httpd" );
1247         vlc_object_detach( httpd );
1248         vlc_object_destroy( httpd );
1249     }
1250     vlc_mutex_unlock( lockval.p_address );
1251 }
1252
1253 /* register a new url */
1254 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, const char *psz_url,
1255                                          const char *psz_user, const char *psz_password,
1256                                          const vlc_acl_t *p_acl, vlc_bool_t b_check )
1257 {
1258     httpd_url_t *url;
1259     int         i;
1260
1261     vlc_mutex_lock( &host->lock );
1262     if( b_check )
1263     {
1264         for( i = 0; i < host->i_url; i++ )
1265         {
1266             if( !strcmp( psz_url, host->url[i]->psz_url ) )
1267             {
1268                 msg_Warn( host->httpd,
1269                           "cannot add '%s' (url already defined)", psz_url );
1270                 vlc_mutex_unlock( &host->lock );
1271                 return NULL;
1272             }
1273         }
1274     }
1275
1276     url = malloc( sizeof( httpd_url_t ) );
1277     url->host = host;
1278
1279     vlc_mutex_init( host->httpd, &url->lock );
1280     url->psz_url = strdup( psz_url );
1281     url->psz_user = strdup( psz_user ? psz_user : "" );
1282     url->psz_password = strdup( psz_password ? psz_password : "" );
1283     url->p_acl = ACL_Duplicate( host, p_acl );
1284     for( i = 0; i < HTTPD_MSG_MAX; i++ )
1285     {
1286         url->catch[i].cb = NULL;
1287         url->catch[i].p_sys = NULL;
1288     }
1289
1290     TAB_APPEND( host->i_url, host->url, url );
1291     vlc_mutex_unlock( &host->lock );
1292
1293     return url;
1294 }
1295
1296 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
1297                            const char *psz_user, const char *psz_password,
1298                            const vlc_acl_t *p_acl )
1299 {
1300     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1301                                 psz_password, p_acl, VLC_FALSE );
1302 }
1303
1304 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
1305                                  const char *psz_user, const char *psz_password,
1306                                  const vlc_acl_t *p_acl )
1307 {
1308     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1309                                 psz_password, p_acl, VLC_TRUE );
1310 }
1311
1312 /* register callback on a url */
1313 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1314                     httpd_callback_sys_t *p_sys )
1315 {
1316     vlc_mutex_lock( &url->lock );
1317     url->catch[i_msg].cb   = cb;
1318     url->catch[i_msg].p_sys= p_sys;
1319     vlc_mutex_unlock( &url->lock );
1320
1321     return VLC_SUCCESS;
1322 }
1323
1324 /* delete an url */
1325 void httpd_UrlDelete( httpd_url_t *url )
1326 {
1327     httpd_host_t *host = url->host;
1328     int          i;
1329
1330     vlc_mutex_lock( &host->lock );
1331     TAB_REMOVE( host->i_url, host->url, url );
1332
1333     vlc_mutex_destroy( &url->lock );
1334     free( url->psz_url );
1335     free( url->psz_user );
1336     free( url->psz_password );
1337     ACL_Destroy( url->p_acl );
1338
1339     for( i = 0; i < host->i_client; i++ )
1340     {
1341         httpd_client_t *client = host->client[i];
1342
1343         if( client->url == url )
1344         {
1345             /* TODO complete it */
1346             msg_Warn( host, "force closing connections" );
1347             httpd_ClientClean( client );
1348             TAB_REMOVE( host->i_client, host->client, client );
1349             free( client );
1350             i--;
1351         }
1352     }
1353     free( url );
1354     vlc_mutex_unlock( &host->lock );
1355 }
1356
1357 void httpd_MsgInit( httpd_message_t *msg )
1358 {
1359     msg->cl         = NULL;
1360     msg->i_type     = HTTPD_MSG_NONE;
1361     msg->i_proto    = HTTPD_PROTO_NONE;
1362     msg->i_version  = -1;
1363
1364     msg->i_status   = 0;
1365     msg->psz_status = NULL;
1366
1367     msg->psz_url    = NULL;
1368     msg->psz_args   = NULL;
1369
1370     msg->i_channel  = -1;
1371
1372     msg->i_name     = 0;
1373     msg->name       = NULL;
1374     msg->i_value    = 0;
1375     msg->value      = NULL;
1376
1377     msg->i_body_offset = 0;
1378     msg->i_body        = 0;
1379     msg->p_body        = 0;
1380 }
1381
1382 void httpd_MsgClean( httpd_message_t *msg )
1383 {
1384     int i;
1385
1386     if( msg->psz_status )
1387     {
1388         free( msg->psz_status );
1389     }
1390     if( msg->psz_url )
1391     {
1392         free( msg->psz_url );
1393     }
1394     if( msg->psz_args )
1395     {
1396         free( msg->psz_args );
1397     }
1398     for( i = 0; i < msg->i_name; i++ )
1399     {
1400         free( msg->name[i] );
1401         free( msg->value[i] );
1402     }
1403     if( msg->name )
1404     {
1405         free( msg->name );
1406     }
1407     if( msg->value )
1408     {
1409         free( msg->value );
1410     }
1411     if( msg->p_body )
1412     {
1413         free( msg->p_body );
1414     }
1415     httpd_MsgInit( msg );
1416 }
1417
1418 const char *httpd_MsgGet( httpd_message_t *msg, const char *name )
1419 {
1420     int i;
1421
1422     for( i = 0; i < msg->i_name; i++ )
1423     {
1424         if( !strcasecmp( msg->name[i], name ))
1425         {
1426             return msg->value[i];
1427         }
1428     }
1429     return NULL;
1430 }
1431
1432 void httpd_MsgAdd( httpd_message_t *msg, const char *name, const char *psz_value, ... )
1433 {
1434     va_list args;
1435     char *value = NULL;
1436
1437     va_start( args, psz_value );
1438 #if defined(HAVE_VASPRINTF) && !defined(__APPLE__) && !defined(SYS_BEOS)
1439     vasprintf( &value, psz_value, args );
1440 #else
1441     {
1442         int i_size = strlen( psz_value ) + 4096;    /* FIXME stupid system */
1443         value = calloc( i_size, sizeof( char ) );
1444         vsnprintf( value, i_size, psz_value, args );
1445         value[i_size - 1] = 0;
1446     }
1447 #endif
1448     va_end( args );
1449
1450     name = strdup( name );
1451
1452     TAB_APPEND( msg->i_name,  msg->name,  (char*)name );
1453     TAB_APPEND( msg->i_value, msg->value, value );
1454 }
1455
1456 static void httpd_ClientInit( httpd_client_t *cl, mtime_t now )
1457 {
1458     cl->i_state = HTTPD_CLIENT_RECEIVING;
1459     cl->i_activity_date = now;
1460     cl->i_activity_timeout = I64C(10000000);
1461     cl->i_buffer_size = HTTPD_CL_BUFSIZE;
1462     cl->i_buffer = 0;
1463     cl->p_buffer = malloc( cl->i_buffer_size );
1464     cl->i_mode   = HTTPD_CLIENT_FILE;
1465     cl->b_read_waiting = VLC_FALSE;
1466
1467     httpd_MsgInit( &cl->query );
1468     httpd_MsgInit( &cl->answer );
1469 }
1470
1471 void httpd_ClientModeStream( httpd_client_t *cl )
1472 {
1473     cl->i_mode   = HTTPD_CLIENT_STREAM;
1474 }
1475
1476 void httpd_ClientModeBidir( httpd_client_t *cl )
1477 {
1478     cl->i_mode   = HTTPD_CLIENT_BIDIR;
1479 }
1480
1481 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
1482 {
1483     return net_GetPeerAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1484 }
1485
1486 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
1487 {
1488     return net_GetSockAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1489 }
1490
1491 static void httpd_ClientClean( httpd_client_t *cl )
1492 {
1493     if( cl->fd >= 0 )
1494     {
1495         if( cl->p_tls != NULL )
1496             tls_ServerSessionClose( cl->p_tls );
1497         net_Close( cl->fd );
1498         cl->fd = -1;
1499     }
1500
1501     httpd_MsgClean( &cl->answer );
1502     httpd_MsgClean( &cl->query );
1503
1504     if( cl->p_buffer )
1505     {
1506         free( cl->p_buffer );
1507         cl->p_buffer = NULL;
1508     }
1509 }
1510
1511 static httpd_client_t *httpd_ClientNew( int fd, struct sockaddr_storage *sock,
1512                                         int i_sock_size,
1513                                         tls_session_t *p_tls, mtime_t now )
1514 {
1515     httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1516
1517     if( !cl ) return NULL;
1518
1519     cl->i_ref   = 0;
1520     cl->fd      = fd;
1521     memcpy( &cl->sock, sock, sizeof( cl->sock ) );
1522     cl->i_sock_size = i_sock_size;
1523     cl->url     = NULL;
1524     cl->p_tls = p_tls;
1525
1526     httpd_ClientInit( cl, now );
1527
1528     return cl;
1529 }
1530
1531 static int httpd_NetRecv( httpd_client_t *cl, uint8_t *p, int i_len )
1532 {
1533     tls_session_t *p_tls;
1534
1535     p_tls = cl->p_tls;
1536     if( p_tls != NULL)
1537         return tls_Recv( p_tls, p, i_len );
1538
1539     return recv( cl->fd, p, i_len, 0 );
1540 }
1541
1542 static int httpd_NetSend( httpd_client_t *cl, const uint8_t *p, int i_len )
1543 {
1544     tls_session_t *p_tls;
1545
1546     p_tls = cl->p_tls;
1547     if( p_tls != NULL)
1548         return tls_Send( p_tls, p, i_len );
1549
1550     return send( cl->fd, p, i_len, 0 );
1551 }
1552
1553 static void httpd_ClientRecv( httpd_client_t *cl )
1554 {
1555     int i_len;
1556
1557     if( cl->query.i_proto == HTTPD_PROTO_NONE )
1558     {
1559         /* enough to see if it's rtp over rtsp or RTSP/HTTP */
1560         i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
1561                                4 - cl->i_buffer );
1562         if( i_len > 0 )
1563         {
1564             cl->i_buffer += i_len;
1565         }
1566
1567         if( cl->i_buffer >= 4 )
1568         {
1569             /*fprintf( stderr, "peek=%4.4s\n", cl->p_buffer );*/
1570             /* detect type */
1571             if( cl->p_buffer[0] == '$' )
1572             {
1573                 /* RTSP (rtp over rtsp) */
1574                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1575                 cl->query.i_type  = HTTPD_MSG_CHANNEL;
1576                 cl->query.i_channel = cl->p_buffer[1];
1577                 cl->query.i_body  = (cl->p_buffer[2] << 8)|cl->p_buffer[3];
1578                 cl->query.p_body  = malloc( cl->query.i_body );
1579
1580                 cl->i_buffer      = 0;
1581             }
1582             else if( !memcmp( cl->p_buffer, "HTTP", 4 ) )
1583             {
1584                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1585                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1586             }
1587             else if( !memcmp( cl->p_buffer, "RTSP", 4 ) )
1588             {
1589                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1590                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1591             }
1592             else if( !memcmp( cl->p_buffer, "GET ", 4 ) ||
1593                      !memcmp( cl->p_buffer, "HEAD", 4 ) ||
1594                      !memcmp( cl->p_buffer, "POST", 4 ) )
1595             {
1596                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1597                 cl->query.i_type  = HTTPD_MSG_NONE;
1598             }
1599             else
1600             {
1601                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1602                 cl->query.i_type  = HTTPD_MSG_NONE;
1603             }
1604         }
1605     }
1606     else if( cl->query.i_body > 0 )
1607     {
1608         /* we are reading the body of a request or a channel */
1609         i_len = httpd_NetRecv( cl, &cl->query.p_body[cl->i_buffer],
1610                                cl->query.i_body - cl->i_buffer );
1611         if( i_len > 0 )
1612         {
1613             cl->i_buffer += i_len;
1614         }
1615         if( cl->i_buffer >= cl->query.i_body )
1616         {
1617             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1618         }
1619     }
1620     else
1621     {
1622         /* we are reading a header -> char by char */
1623         for( ;; )
1624         {
1625             i_len = httpd_NetRecv (cl, &cl->p_buffer[cl->i_buffer], 1 );
1626             if( i_len <= 0 )
1627             {
1628                 break;
1629             }
1630             cl->i_buffer++;
1631
1632             if( cl->i_buffer + 1 >= cl->i_buffer_size )
1633             {
1634                 cl->i_buffer_size += 1024;
1635                 cl->p_buffer = realloc( cl->p_buffer, cl->i_buffer_size );
1636             }
1637             if( ( cl->i_buffer >= 2 && !memcmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1638                 ( cl->i_buffer >= 4 && !memcmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1639             {
1640                 char *p;
1641
1642                 /* we have finished the header so parse it and set i_body */
1643                 cl->p_buffer[cl->i_buffer] = '\0';
1644
1645                 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1646                 {
1647                     /* FIXME:
1648                      * assume strlen( "HTTP/1.x" ) = 8
1649                      */
1650                     cl->query.i_status =
1651                         strtol( (char *)&cl->p_buffer[8],
1652                                 &p, 0 );
1653                     while( *p == ' ' )
1654                     {
1655                         p++;
1656                     }
1657                     cl->query.psz_status = strdup( p );
1658                 }
1659                 else
1660                 {
1661                     static const struct
1662                     {
1663                         const char *name;
1664                         int  i_type;
1665                         int  i_proto;
1666                     }
1667                     msg_type[] =
1668                     {
1669                         { "OPTIONS",        HTTPD_MSG_OPTIONS,      HTTPD_PROTO_RTSP },
1670                         { "DESCRIBE",       HTTPD_MSG_DESCRIBE,     HTTPD_PROTO_RTSP },
1671                         { "SETUP",          HTTPD_MSG_SETUP,        HTTPD_PROTO_RTSP },
1672                         { "PLAY",           HTTPD_MSG_PLAY,         HTTPD_PROTO_RTSP },
1673                         { "PAUSE",          HTTPD_MSG_PAUSE,        HTTPD_PROTO_RTSP },
1674                         { "GET_PARAMETER",  HTTPD_MSG_GETPARAMETER, HTTPD_PROTO_RTSP },
1675                         { "TEARDOWN",       HTTPD_MSG_TEARDOWN,     HTTPD_PROTO_RTSP },
1676
1677                         { "GET",            HTTPD_MSG_GET,          HTTPD_PROTO_HTTP },
1678                         { "HEAD",           HTTPD_MSG_HEAD,         HTTPD_PROTO_HTTP },
1679                         { "POST",           HTTPD_MSG_POST,         HTTPD_PROTO_HTTP },
1680
1681                         { NULL,             HTTPD_MSG_NONE,         HTTPD_PROTO_NONE }
1682                     };
1683                     int  i;
1684
1685                     p = NULL;
1686                     cl->query.i_type = HTTPD_MSG_NONE;
1687
1688                     /*fprintf( stderr, "received new request=%s\n", cl->p_buffer);*/
1689
1690                     for( i = 0; msg_type[i].name != NULL; i++ )
1691                     {
1692                         if( !strncmp( (char *)cl->p_buffer, msg_type[i].name,
1693                                       strlen( msg_type[i].name ) ) )
1694                         {
1695                             p = (char *)&cl->p_buffer[strlen((char *)msg_type[i].name) + 1 ];
1696                             cl->query.i_type = msg_type[i].i_type;
1697                             if( cl->query.i_proto != msg_type[i].i_proto )
1698                             {
1699                                 p = NULL;
1700                                 cl->query.i_proto = HTTPD_PROTO_NONE;
1701                                 cl->query.i_type = HTTPD_MSG_NONE;
1702                             }
1703                             break;
1704                         }
1705                     }
1706                     if( p == NULL )
1707                     {
1708                         if( strstr( (char *)cl->p_buffer, "HTTP/1." ) )
1709                         {
1710                             cl->query.i_proto = HTTPD_PROTO_HTTP;
1711                         }
1712                         else if( strstr( (char *)cl->p_buffer, "RTSP/1." ) )
1713                         {
1714                             cl->query.i_proto = HTTPD_PROTO_RTSP;
1715                         }
1716                     }
1717                     else
1718                     {
1719                         char *p2;
1720                         char *p3;
1721
1722                         while( *p == ' ' )
1723                         {
1724                             p++;
1725                         }
1726                         p2 = strchr( p, ' ' );
1727                         if( p2 )
1728                         {
1729                             *p2++ = '\0';
1730                         }
1731                         if( !strncasecmp( p, "rtsp:", 5 ) )
1732                         {
1733                             /* for rtsp url, you have rtsp://localhost:port/path */
1734                             p += 5;
1735                             while( *p == '/' ) p++;
1736                             while( *p && *p != '/' ) p++;
1737                         }
1738                         cl->query.psz_url = strdup( p );
1739                         if( ( p3 = strchr( cl->query.psz_url, '?' ) )  )
1740                         {
1741                             *p3++ = '\0';
1742                             cl->query.psz_args = (uint8_t *)strdup( p3 );
1743                         }
1744                         if( p2 )
1745                         {
1746                             while( *p2 == ' ' )
1747                             {
1748                                 p2++;
1749                             }
1750                             if( !strncasecmp( p2, "HTTP/1.", 7 ) )
1751                             {
1752                                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1753                                 cl->query.i_version = atoi( p2+7 );
1754                             }
1755                             else if( !strncasecmp( p2, "RTSP/1.", 7 ) )
1756                             {
1757                                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1758                                 cl->query.i_version = atoi( p2+7 );
1759                             }
1760                         }
1761                         p = p2;
1762                     }
1763                 }
1764                 if( p )
1765                 {
1766                     p = strchr( p, '\n' );
1767                 }
1768                 if( p )
1769                 {
1770                     while( *p == '\n' || *p == '\r' )
1771                     {
1772                         p++;
1773                     }
1774                     while( p && *p != '\0' )
1775                     {
1776                         char *line = p;
1777                         char *eol = p = strchr( p, '\n' );
1778                         char *colon;
1779
1780                         while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1781                         {
1782                             *eol-- = '\0';
1783                         }
1784
1785                         if( ( colon = strchr( line, ':' ) ) )
1786                         {
1787                             char *name;
1788                             char *value;
1789
1790                             *colon++ = '\0';
1791                             while( *colon == ' ' )
1792                             {
1793                                 colon++;
1794                             }
1795                             name = strdup( line );
1796                             value = strdup( colon );
1797
1798                             TAB_APPEND( cl->query.i_name, cl->query.name, name );
1799                             TAB_APPEND( cl->query.i_value,cl->query.value,value);
1800
1801                             if( !strcasecmp( name, "Content-Length" ) )
1802                             {
1803                                 cl->query.i_body = atol( value );
1804                             }
1805                         }
1806
1807                         if( p )
1808                         {
1809                             p++;
1810                             while( *p == '\n' || *p == '\r' )
1811                             {
1812                                 p++;
1813                             }
1814                         }
1815                     }
1816                 }
1817                 if( cl->query.i_body > 0 )
1818                 {
1819                     /* TODO Mhh, handle the case client will only send a request and close the connection
1820                      * to mark and of body (probably only RTSP) */
1821                     cl->query.p_body = malloc( cl->query.i_body );
1822                     cl->i_buffer = 0;
1823                 }
1824                 else
1825                 {
1826                     cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1827                 }
1828             }
1829         }
1830     }
1831
1832     /* check if the client is to be set to dead */
1833 #if defined( WIN32 ) || defined( UNDER_CE )
1834     if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1835 #else
1836     if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1837 #endif
1838     {
1839         if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1840         {
1841             /* connection closed -> end of data */
1842             if( cl->query.i_body > 0 )
1843             {
1844                 cl->query.i_body = cl->i_buffer;
1845             }
1846             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1847         }
1848         else
1849         {
1850             cl->i_state = HTTPD_CLIENT_DEAD;
1851         }
1852     }
1853
1854     /* XXX: for QT I have to disable timeout. Try to find why */
1855     if( cl->query.i_proto == HTTPD_PROTO_RTSP )
1856         cl->i_activity_timeout = 0;
1857
1858 #if 0 /* Debugging only */
1859     if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1860     {
1861         int i;
1862
1863         fprintf( stderr, "received new request\n" );
1864         fprintf( stderr, "  - proto=%s\n",
1865                  cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1866         fprintf( stderr, "  - version=%d\n", cl->query.i_version );
1867         fprintf( stderr, "  - msg=%d\n", cl->query.i_type );
1868         if( cl->query.i_type == HTTPD_MSG_ANSWER )
1869         {
1870             fprintf( stderr, "  - answer=%d '%s'\n", cl->query.i_status,
1871                      cl->query.psz_status );
1872         }
1873         else if( cl->query.i_type != HTTPD_MSG_NONE )
1874         {
1875             fprintf( stderr, "  - url=%s\n", cl->query.psz_url );
1876         }
1877         for( i = 0; i < cl->query.i_name; i++ )
1878         {
1879             fprintf( stderr, "  - option name='%s' value='%s'\n",
1880                      cl->query.name[i], cl->query.value[i] );
1881         }
1882     }
1883 #endif
1884 }
1885
1886 static void httpd_ClientSend( httpd_client_t *cl )
1887 {
1888     int i;
1889     int i_len;
1890
1891     if( cl->i_buffer < 0 )
1892     {
1893         /* We need to create the header */
1894         int i_size = 0;
1895         char *p;
1896
1897         i_size = strlen( "HTTP/1.") + 10 + 10 +
1898                  strlen( cl->answer.psz_status ? cl->answer.psz_status : "" ) + 5;
1899         for( i = 0; i < cl->answer.i_name; i++ )
1900         {
1901             i_size += strlen( cl->answer.name[i] ) + 2 +
1902                       strlen( cl->answer.value[i] ) + 2;
1903         }
1904
1905         if( cl->i_buffer_size < i_size )
1906         {
1907             cl->i_buffer_size = i_size;
1908             free( cl->p_buffer );
1909             cl->p_buffer = malloc( i_size );
1910         }
1911         p = (char *)cl->p_buffer;
1912
1913         p += sprintf( p, "%s/1.%d %d %s\r\n",
1914                       cl->answer.i_proto ==  HTTPD_PROTO_HTTP ? "HTTP" : "RTSP",
1915                       cl->answer.i_version,
1916                       cl->answer.i_status, cl->answer.psz_status );
1917         for( i = 0; i < cl->answer.i_name; i++ )
1918         {
1919             p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1920                           cl->answer.value[i] );
1921         }
1922         p += sprintf( p, "\r\n" );
1923
1924         cl->i_buffer = 0;
1925         cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1926
1927         /*fprintf( stderr, "sending answer\n" );
1928         fprintf( stderr, "%s",  cl->p_buffer );*/
1929     }
1930
1931     i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
1932                            cl->i_buffer_size - cl->i_buffer );
1933     if( i_len >= 0 )
1934     {
1935         cl->i_buffer += i_len;
1936
1937         if( cl->i_buffer >= cl->i_buffer_size )
1938         {
1939             if( cl->answer.i_body == 0  && cl->answer.i_body_offset > 0 &&
1940                 !cl->b_read_waiting )
1941             {
1942                 /* catch more body data */
1943                 int     i_msg = cl->query.i_type;
1944                 int64_t i_offset = cl->answer.i_body_offset;
1945
1946                 httpd_MsgClean( &cl->answer );
1947                 cl->answer.i_body_offset = i_offset;
1948
1949                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1950                                           &cl->answer, &cl->query );
1951             }
1952
1953             if( cl->answer.i_body > 0 )
1954             {
1955                 /* send the body data */
1956                 free( cl->p_buffer );
1957                 cl->p_buffer = cl->answer.p_body;
1958                 cl->i_buffer_size = cl->answer.i_body;
1959                 cl->i_buffer = 0;
1960
1961                 cl->answer.i_body = 0;
1962                 cl->answer.p_body = NULL;
1963             }
1964             else
1965             {
1966                 /* send finished */
1967                 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1968             }
1969         }
1970     }
1971     else
1972     {
1973 #if defined( WIN32 ) || defined( UNDER_CE )
1974         if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1975 #else
1976         if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1977 #endif
1978         {
1979             /* error */
1980             cl->i_state = HTTPD_CLIENT_DEAD;
1981         }
1982     }
1983 }
1984
1985 static void httpd_ClientTlsHsIn( httpd_client_t *cl )
1986 {
1987     switch( tls_SessionContinueHandshake( cl->p_tls ) )
1988     {
1989         case 0:
1990             cl->i_state = HTTPD_CLIENT_RECEIVING;
1991             break;
1992
1993         case -1:
1994             cl->i_state = HTTPD_CLIENT_DEAD;
1995             cl->p_tls = NULL;
1996             break;
1997
1998         case 2:
1999             cl->i_state = HTTPD_CLIENT_TLS_HS_OUT;
2000     }
2001 }
2002
2003 static void httpd_ClientTlsHsOut( httpd_client_t *cl )
2004 {
2005     switch( tls_SessionContinueHandshake( cl->p_tls ) )
2006     {
2007         case 0:
2008             cl->i_state = HTTPD_CLIENT_RECEIVING;
2009             break;
2010
2011         case -1:
2012             cl->i_state = HTTPD_CLIENT_DEAD;
2013             cl->p_tls = NULL;
2014             break;
2015
2016         case 1:
2017             cl->i_state = HTTPD_CLIENT_TLS_HS_IN;
2018             break;
2019     }
2020 }
2021
2022 static void httpd_HostThread( httpd_host_t *host )
2023 {
2024     tls_session_t *p_tls = NULL;
2025
2026     host->p_total_counter = stats_CounterCreate( host,
2027                                           VLC_VAR_INTEGER, STATS_COUNTER );
2028     host->p_active_counter = stats_CounterCreate( host,
2029                                           VLC_VAR_INTEGER, STATS_COUNTER );
2030
2031     while( !host->b_die )
2032     {
2033         if( host->i_url <= 0 )
2034         {
2035             /* 0.2s */
2036             msleep( 200000 );
2037             continue;
2038         }
2039
2040         /* prepare a new TLS session */
2041         if( ( p_tls == NULL ) && ( host->p_tls != NULL ) )
2042             p_tls = tls_ServerSessionPrepare( host->p_tls );
2043
2044         struct pollfd ufd[host->nfd + host->i_client];
2045         unsigned nfd;
2046         for (nfd = 0; nfd < host->nfd; nfd++)
2047         {
2048             ufd[nfd].fd = host->fds[nfd];
2049             ufd[nfd].events = POLLIN;
2050             ufd[nfd].revents = 0;
2051         }
2052
2053         /* add all socket that should be read/write and close dead connection */
2054         vlc_mutex_lock( &host->lock );
2055         mtime_t now = mdate();
2056         vlc_bool_t b_low_delay = VLC_FALSE;
2057
2058         for(int i_client = 0; i_client < host->i_client; i_client++ )
2059         {
2060             httpd_client_t *cl = host->client[i_client];
2061             if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
2062                 ( cl->i_state == HTTPD_CLIENT_DEAD ||
2063                   ( cl->i_activity_timeout > 0 &&
2064                     cl->i_activity_date+cl->i_activity_timeout < now) ) ) )
2065             {
2066                 httpd_ClientClean( cl );
2067                 stats_UpdateInteger( host, host->p_active_counter, -1, NULL );
2068                 TAB_REMOVE( host->i_client, host->client, cl );
2069                 free( cl );
2070                 i_client--;
2071                 continue;
2072             }
2073
2074             struct pollfd *pufd = ufd + nfd;
2075             assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
2076
2077             pufd->fd = cl->fd;
2078             pufd->events = pufd->revents = 0;
2079
2080             if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
2081                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
2082             {
2083                 pufd->events = POLLIN;
2084             }
2085             else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
2086                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
2087             {
2088                 pufd->events = POLLOUT;
2089             }
2090             else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
2091             {
2092                 httpd_message_t *answer = &cl->answer;
2093                 httpd_message_t *query  = &cl->query;
2094                 int i_msg = query->i_type;
2095
2096                 httpd_MsgInit( answer );
2097
2098                 /* Handle what we received */
2099                 if( (cl->i_mode != HTTPD_CLIENT_BIDIR) &&
2100                     (i_msg == HTTPD_MSG_ANSWER || i_msg == HTTPD_MSG_CHANNEL) )
2101                 {
2102                     /* we can only receive request from client when not
2103                      * in BIDIR mode */
2104                     cl->url     = NULL;
2105                     cl->i_state = HTTPD_CLIENT_DEAD;
2106                 }
2107                 else if( i_msg == HTTPD_MSG_ANSWER )
2108                 {
2109                     /* We are in BIDIR mode, trigger the callback and then
2110                      * check for new data */
2111                     if( cl->url && cl->url->catch[i_msg].cb )
2112                     {
2113                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2114                                                   cl, NULL, query );
2115                     }
2116                     cl->i_state = HTTPD_CLIENT_WAITING;
2117                 }
2118                 else if( i_msg == HTTPD_MSG_CHANNEL )
2119                 {
2120                     /* We are in BIDIR mode, trigger the callback and then
2121                      * check for new data */
2122                     if( cl->url && cl->url->catch[i_msg].cb )
2123                     {
2124                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2125                                                   cl, NULL, query );
2126                     }
2127                     cl->i_state = HTTPD_CLIENT_WAITING;
2128                 }
2129                 else if( i_msg == HTTPD_MSG_OPTIONS )
2130                 {
2131                     const char *psz_cseq;
2132                     int i_cseq;
2133
2134                     /* unimplemented */
2135                     answer->i_proto  = query->i_proto ;
2136                     answer->i_type   = HTTPD_MSG_ANSWER;
2137                     answer->i_version= 0;
2138                     answer->i_status = 200;
2139                     answer->psz_status = strdup( "Ok" );
2140
2141                     answer->i_body = 0;
2142                     answer->p_body = NULL;
2143
2144                     psz_cseq = httpd_MsgGet( query, "Cseq" );
2145                     if( psz_cseq )
2146                         i_cseq = atoi( psz_cseq );
2147                     else
2148                         i_cseq = 0;
2149                     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
2150                     httpd_MsgAdd( answer, "Server", "VLC Server" );
2151                     httpd_MsgAdd( answer, "Public", "DESCRIBE, SETUP, "
2152                                  "TEARDOWN, PLAY, PAUSE" );
2153                     httpd_MsgAdd( answer, "Content-Length", "%d",
2154                                   answer->i_body );
2155
2156                     cl->i_buffer = -1;  /* Force the creation of the answer in
2157                                          * httpd_ClientSend */
2158                     cl->i_state = HTTPD_CLIENT_SENDING;
2159                 }
2160                 else if( i_msg == HTTPD_MSG_NONE )
2161                 {
2162                     if( query->i_proto == HTTPD_PROTO_NONE )
2163                     {
2164                         cl->url = NULL;
2165                         cl->i_state = HTTPD_CLIENT_DEAD;
2166                     }
2167                     else
2168                     {
2169                         char *p;
2170
2171                         /* unimplemented */
2172                         answer->i_proto  = query->i_proto ;
2173                         answer->i_type   = HTTPD_MSG_ANSWER;
2174                         answer->i_version= 0;
2175                         answer->i_status = 501;
2176                         answer->psz_status = strdup( "Unimplemented" );
2177
2178                         answer->i_body = httpd_HtmlError (&p, 501, NULL);
2179                         answer->p_body = (uint8_t *)p;
2180                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2181
2182                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2183                         cl->i_state = HTTPD_CLIENT_SENDING;
2184                     }
2185                 }
2186                 else
2187                 {
2188                     vlc_bool_t b_auth_failed = VLC_FALSE;
2189                     vlc_bool_t b_hosts_failed = VLC_FALSE;
2190
2191                     /* Search the url and trigger callbacks */
2192                     for(int i = 0; i < host->i_url; i++ )
2193                     {
2194                         httpd_url_t *url = host->url[i];
2195
2196                         if( !strcmp( url->psz_url, query->psz_url ) )
2197                         {
2198                             if( url->catch[i_msg].cb )
2199                             {
2200                                 if( answer && ( url->p_acl != NULL ) )
2201                                 {
2202                                     char ip[NI_MAXNUMERICHOST];
2203
2204                                     if( httpd_ClientIP( cl, ip ) != NULL )
2205                                     {
2206                                         if( ACL_Check( url->p_acl, ip ) )
2207                                         {
2208                                             b_hosts_failed = VLC_TRUE;
2209                                             break;
2210                                         }
2211                                     }
2212                                     else
2213                                         b_hosts_failed = VLC_TRUE;
2214                                 }
2215
2216                                 if( answer && ( *url->psz_user || *url->psz_password ) )
2217                                 {
2218                                     /* create the headers */
2219                                     const char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
2220                                     char *auth;
2221                                     char *id;
2222
2223                                     asprintf( &id, "%s:%s", url->psz_user, url->psz_password );
2224                                     if( b64 != NULL
2225                                          && !strncasecmp( b64, "BASIC", 5 ) )
2226                                     {
2227                                         b64 += 5;
2228                                         while( *b64 == ' ' )
2229                                         {
2230                                             b64++;
2231                                         }
2232                                         auth = malloc( strlen(b64) + 1 );
2233                                         b64_decode( auth, b64 );
2234                                     }
2235                                     else
2236                                     {
2237                                         auth = strdup( "" );
2238                                     }
2239
2240                                     if( strcmp( id, auth ) )
2241                                     {
2242                                         httpd_MsgAdd( answer, "WWW-Authenticate", "Basic realm=\"%s\"", url->psz_user );
2243                                         /* We fail for all url */
2244                                         b_auth_failed = VLC_TRUE;
2245                                         free( id );
2246                                         free( auth );
2247                                         break;
2248                                     }
2249
2250                                     free( id );
2251                                     free( auth );
2252                                 }
2253
2254                                 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
2255                                 {
2256                                     if( answer->i_proto == HTTPD_PROTO_NONE )
2257                                     {
2258                                         /* Raw answer from a CGI */
2259                                         cl->i_buffer = cl->i_buffer_size;
2260                                     }
2261                                     else
2262                                         cl->i_buffer = -1;
2263
2264                                     /* only one url can answer */
2265                                     answer = NULL;
2266                                     if( cl->url == NULL )
2267                                     {
2268                                         cl->url = url;
2269                                     }
2270                                 }
2271                             }
2272                         }
2273                     }
2274
2275                     if( answer )
2276                     {
2277                         char *p;
2278
2279                         answer->i_proto  = query->i_proto;
2280                         answer->i_type   = HTTPD_MSG_ANSWER;
2281                         answer->i_version= 0;
2282
2283                         if( b_hosts_failed )
2284                         {
2285                             answer->i_status = 403;
2286                             answer->psz_status = strdup( "Forbidden" );
2287                         }
2288                         else if( b_auth_failed )
2289                         {
2290                             answer->i_status = 401;
2291                             answer->psz_status = strdup( "Authorization Required" );
2292                         }
2293                         else
2294                         {
2295                             /* no url registered */
2296                             answer->i_status = 404;
2297                             answer->psz_status = strdup( "Not found" );
2298                         }
2299
2300                         answer->i_body = httpd_HtmlError (&p,
2301                                                           answer->i_status,
2302                                                           query->psz_url);
2303                         answer->p_body = (uint8_t *)p;
2304
2305                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2306                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2307                         httpd_MsgAdd( answer, "Content-Type", "%s", "text/html" );
2308                     }
2309
2310                     cl->i_state = HTTPD_CLIENT_SENDING;
2311                 }
2312             }
2313             else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2314             {
2315                 if( cl->i_mode == HTTPD_CLIENT_FILE || cl->answer.i_body_offset == 0 )
2316                 {
2317                     const char *psz_connection = httpd_MsgGet( &cl->answer, "Connection" );
2318                     const char *psz_query = httpd_MsgGet( &cl->query, "Connection" );
2319                     vlc_bool_t b_connection = VLC_FALSE;
2320                     vlc_bool_t b_keepalive = VLC_FALSE;
2321                     vlc_bool_t b_query = VLC_FALSE;
2322
2323                     cl->url = NULL;
2324                     if( psz_connection )
2325                     {
2326                         b_connection = ( strcasecmp( psz_connection, "Close" ) == 0 );
2327                         b_keepalive = ( strcasecmp( psz_connection, "Keep-Alive" ) == 0 );
2328                     }
2329
2330                     if( psz_query )
2331                     {
2332                         b_query = ( strcasecmp( psz_query, "Close" ) == 0 );
2333                     }
2334
2335                     if( ( ( cl->query.i_proto == HTTPD_PROTO_HTTP ) &&
2336                           ( ( cl->answer.i_version == 0 && b_keepalive ) ||
2337                             ( cl->answer.i_version == 1 && !b_connection ) ) ) ||
2338                         ( ( cl->query.i_proto == HTTPD_PROTO_RTSP ) &&
2339                           !b_query && !b_connection ) )
2340                     {
2341                         httpd_MsgClean( &cl->query );
2342                         httpd_MsgInit( &cl->query );
2343
2344                         cl->i_buffer = 0;
2345                         cl->i_buffer_size = 1000;
2346                         free( cl->p_buffer );
2347                         cl->p_buffer = malloc( cl->i_buffer_size );
2348                         cl->i_state = HTTPD_CLIENT_RECEIVING;
2349                     }
2350                     else
2351                     {
2352                         cl->i_state = HTTPD_CLIENT_DEAD;
2353                     }
2354                     httpd_MsgClean( &cl->answer );
2355                 }
2356                 else if( cl->b_read_waiting )
2357                 {
2358                     /* we have a message waiting for us to read it */
2359                     httpd_MsgClean( &cl->answer );
2360                     httpd_MsgClean( &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                     cl->b_read_waiting = VLC_FALSE;
2368                 }
2369                 else
2370                 {
2371                     int64_t i_offset = cl->answer.i_body_offset;
2372                     httpd_MsgClean( &cl->answer );
2373
2374                     cl->answer.i_body_offset = i_offset;
2375                     free( cl->p_buffer );
2376                     cl->p_buffer = NULL;
2377                     cl->i_buffer = 0;
2378                     cl->i_buffer_size = 0;
2379
2380                     cl->i_state = HTTPD_CLIENT_WAITING;
2381                 }
2382             }
2383             else if( cl->i_state == HTTPD_CLIENT_WAITING )
2384             {
2385                 int64_t i_offset = cl->answer.i_body_offset;
2386                 int     i_msg = cl->query.i_type;
2387
2388                 httpd_MsgInit( &cl->answer );
2389                 cl->answer.i_body_offset = i_offset;
2390
2391                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2392                                           &cl->answer, &cl->query );
2393                 if( cl->answer.i_type != HTTPD_MSG_NONE )
2394                 {
2395                     /* we have new data, so re-enter send mode */
2396                     cl->i_buffer      = 0;
2397                     cl->p_buffer      = cl->answer.p_body;
2398                     cl->i_buffer_size = cl->answer.i_body;
2399                     cl->answer.p_body = NULL;
2400                     cl->answer.i_body = 0;
2401                     cl->i_state = HTTPD_CLIENT_SENDING;
2402                 }
2403                 else
2404                 {
2405                     /* we shouldn't wait too long */
2406                     b_low_delay = VLC_TRUE;
2407                 }
2408             }
2409
2410             /* Special for BIDIR mode we also check reading */
2411             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2412                 cl->i_state == HTTPD_CLIENT_SENDING )
2413             {
2414                 pufd->events |= POLLIN;
2415             }
2416
2417             if (pufd->events != 0)
2418                 nfd++;
2419         }
2420         vlc_mutex_unlock( &host->lock );
2421
2422         /* we will wait 100ms or 20ms (not too big 'cause HTTPD_CLIENT_WAITING) */
2423         switch (poll (ufd, nfd, b_low_delay ? 20 : 100))
2424         {
2425             case -1:
2426                 if (errno != EINTR)
2427                 {
2428                     /* This is most likely a bug */
2429                     msg_Err( host, "polling error: %s", strerror (errno));
2430                     msleep( 1000 );
2431                 }
2432             case 0:
2433                 continue;
2434         }
2435
2436         now = mdate();
2437
2438         /* accept new connections */
2439         for (nfd = 0; nfd < host->nfd; nfd++)
2440         {
2441             assert (ufd[nfd].fd == host->fds[nfd]);
2442
2443             if (ufd[nfd].revents == 0)
2444                 continue;
2445
2446             struct sockaddr_storage addr;
2447             socklen_t addrlen = sizeof (addr);
2448
2449             int fd = accept (ufd[nfd].fd, (struct sockaddr *)&addr, &addrlen);
2450             if (fd == -1)
2451                 continue;
2452
2453             net_SetupSocket (fd);
2454
2455             int i_state = 0;
2456
2457             if (p_tls != NULL)
2458             {
2459                 switch (tls_ServerSessionHandshake (p_tls, fd))
2460                 {
2461                     case -1:
2462                         msg_Err( host, "Rejecting TLS connection" );
2463                         net_Close (fd);
2464                         fd = -1;
2465                         p_tls = NULL;
2466                         break;
2467
2468                     case 1: /* missing input - most likely */
2469                         i_state = HTTPD_CLIENT_TLS_HS_IN;
2470                         break;
2471
2472                     case 2: /* missing output */
2473                         i_state = HTTPD_CLIENT_TLS_HS_OUT;
2474                         break;
2475                 }
2476
2477                 if (p_tls == NULL)
2478                     break; // wasted TLS session, cannot accept() anymore
2479             }
2480
2481             httpd_client_t *cl;
2482             char ip[NI_MAXNUMERICHOST];
2483             stats_UpdateInteger( host, host->p_total_counter, 1, NULL );
2484             stats_UpdateInteger( host, host->p_active_counter, 1, NULL );
2485             cl = httpd_ClientNew( fd, &addr, addrlen, p_tls, now );
2486             httpd_ClientIP( cl, ip );
2487             msg_Dbg( host, "Connection from %s", ip );
2488             p_tls = NULL;
2489             vlc_mutex_lock( &host->lock );
2490             TAB_APPEND( host->i_client, host->client, cl );
2491             vlc_mutex_unlock( &host->lock );
2492             cl->i_state = i_state; // override state for TLS
2493             break; // cannot accept more than one because of TLS
2494         }
2495
2496         /* now try all others socket */
2497         vlc_mutex_lock( &host->lock );
2498
2499         for( int i_client = 0; i_client < host->i_client; i_client++ )
2500         {
2501             httpd_client_t *cl = host->client[i_client];
2502             const struct pollfd *pufd = ufd + nfd;
2503
2504             assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
2505
2506             if (cl->fd != pufd->fd)
2507                 continue; // we were not waiting for this client
2508             nfd++;
2509
2510             if (pufd->revents == 0)
2511                 continue; // no event received
2512
2513             cl->i_activity_date = now;
2514
2515             if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2516             {
2517                 httpd_ClientRecv( cl );
2518             }
2519             else if( cl->i_state == HTTPD_CLIENT_SENDING )
2520             {
2521                 httpd_ClientSend( cl );
2522             }
2523             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_IN )
2524             {
2525                 httpd_ClientTlsHsIn( cl );
2526             }
2527             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT )
2528             {
2529                 httpd_ClientTlsHsOut( cl );
2530             }
2531
2532             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2533                 cl->i_state == HTTPD_CLIENT_SENDING &&
2534                 (pufd->revents & POLLIN) )
2535             {
2536                 cl->b_read_waiting = VLC_TRUE;
2537             }
2538         }
2539         vlc_mutex_unlock( &host->lock );
2540     }
2541
2542     if( p_tls != NULL )
2543         tls_ServerSessionClose( p_tls );
2544 }
2545
2546 #else /* ENABLE_HTTPD */
2547
2548 /* We just define an empty wrapper */
2549 httpd_host_t *httpd_TLSHostNew( vlc_object_t *a, char *b, int c,
2550                                 tls_server_t *d )
2551 {
2552     msg_Err( a, "HTTP daemon support is disabled" );
2553     return NULL;
2554 }
2555
2556 httpd_host_t *httpd_HostNew( vlc_object_t *a, char *b, int c )
2557 {
2558     msg_Err( a, "HTTP daemon support is disabled" );
2559     return NULL;
2560 }
2561
2562 void httpd_HostDelete( httpd_host_t *a )
2563 {
2564 }
2565
2566 httpd_url_t *httpd_UrlNew( httpd_host_t *host, char *psz_url,
2567                            char *psz_user, char *psz_password,
2568                            const vlc_acl_t *p_acl )
2569 {
2570     return NULL;
2571 }
2572
2573 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, char *psz_url,
2574                                  char *psz_user, char *psz_password,
2575                                  const vlc_acl_t *p_acl )
2576 {
2577     return NULL;
2578 }
2579
2580 int httpd_UrlCatch( httpd_url_t *a, int b, httpd_callback_t c,
2581                     httpd_callback_sys_t *d )
2582 {
2583     return 0;
2584 }
2585
2586 void httpd_UrlDelete( httpd_url_t *a )
2587 {
2588 }
2589
2590 char* httpd_ClientIP( httpd_client_t *cl, char *psz_ip )
2591 {
2592     return NULL;
2593 }
2594
2595 char* httpd_ServerIP( httpd_client_t *cl, char *psz_ip )
2596 {
2597     return NULL;
2598 }
2599
2600 void httpd_ClientModeStream( httpd_client_t *a )
2601 {
2602 }
2603
2604 void httpd_ClientModeBidir( httpd_client_t *a )
2605 {
2606 }
2607
2608 void httpd_FileDelete( httpd_file_t *a )
2609 {
2610 }
2611
2612 httpd_file_t *httpd_FileNew( httpd_host_t *a, char *b, char *c, char *d,
2613                              char *e, httpd_file_callback_t f,
2614                              httpd_file_sys_t *g )
2615 {
2616     return NULL;
2617 }
2618
2619 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
2620                                    const char *psz_user,
2621                                    const char *psz_password,
2622                                    const vlc_acl_t *p_acl,
2623                                    httpd_handler_callback_t pf_fill,
2624                                    httpd_handler_sys_t *p_sys )
2625 {
2626     return NULL;
2627 }
2628
2629 void httpd_HandlerDelete( httpd_handler_t *handler )
2630 {
2631 }
2632
2633 void httpd_RedirectDelete( httpd_redirect_t *a )
2634 {
2635 }
2636
2637 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *a,
2638                                      char *b, char *c )
2639 {
2640     return NULL;
2641 }
2642
2643 void httpd_StreamDelete( httpd_stream_t *a )
2644 {
2645 }
2646
2647 int httpd_StreamHeader( httpd_stream_t *a, uint8_t *b, int c )
2648 {
2649     return 0;
2650 }
2651
2652 int httpd_StreamSend ( httpd_stream_t *a, uint8_t *b, int c )
2653 {
2654     return 0;
2655 }
2656
2657 httpd_stream_t *httpd_StreamNew( httpd_host_t *a, char *b, char *c,
2658                                  char *d, char *e )
2659 {
2660     return NULL;
2661 }
2662
2663 void httpd_MsgInit ( httpd_message_t *a )
2664 {
2665 }
2666
2667 void httpd_MsgAdd  ( httpd_message_t *a, const char *b, const char *c, ... )
2668 {
2669 }
2670
2671 const char *httpd_MsgGet ( httpd_message_t *a, const char *b )
2672 {
2673     return "";
2674 }
2675
2676 void httpd_MsgClean( httpd_message_t *a )
2677 {
2678 }
2679
2680 #endif /* ENABLE_HTTPD */