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

   1 /*****************************************************************************
   2  * httpd.c
   3  *****************************************************************************
   4  * Copyright (C) 2004-2006 the VideoLAN team
   5  * Copyright © 2004-2007 Rémi Denis-Courmont
   6  * $Id$
   7  *
   8  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   9  *          Rémi Denis-Courmont <rem # videolan.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <vlc_common.h>
  31 #include <vlc_httpd.h>
  32
  33 #ifdef ENABLE_HTTPD
  34
  35 #include <assert.h>
  36
  37 #include <vlc_network.h>
  38 #include <vlc_tls.h>
  39 #include <vlc_acl.h>
  40 #include <vlc_strings.h>
  41 #include "../libvlc.h"
  42
  43 #include <string.h>
  44 #include <errno.h>
  45
  46 #ifdef HAVE_UNISTD_H
  47 #   include <unistd.h>
  48 #endif
  49
  50 #ifdef HAVE_FCNTL_H
  51 #   include <fcntl.h>
  52 #endif
  53
  54 #ifdef HAVE_POLL
  55 # include <poll.h>
  56 #endif
  57
  58 #if defined( UNDER_CE )
  59 #   include <winsock.h>
  60 #elif defined( WIN32 )
  61 #   include <winsock2.h>
  62 #else
  63 #   include <sys/socket.h>
  64 #endif
  65
  66 #if defined( WIN32 )
  67 /* We need HUGE buffer otherwise TCP throughput is very limited */
  68 #define HTTPD_CL_BUFSIZE 1000000
  69 #else
  70 #define HTTPD_CL_BUFSIZE 10000
  71 #endif
  72
  73 static void httpd_ClientClean( httpd_client_t *cl );
  74
  75 struct httpd_t
  76 {
  77     VLC_COMMON_MEMBERS
  78
  79     int          i_host;
  80     httpd_host_t **host;
  81 };
  82
  83
  84 /* each host run in his own thread */
  85 struct httpd_host_t
  86 {
  87     VLC_COMMON_MEMBERS
  88
  89     httpd_t     *httpd;
  90
  91     /* ref count */
  92     int         i_ref;
  93
  94     /* address/port and socket for listening at connections */
  95     char        *psz_hostname;
  96     int         i_port;
  97     int         *fds;
  98     unsigned     nfd;
  99
 100     vlc_mutex_t lock;
 101
 102     /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
 103      * This will slow down the url research but make my live easier
 104      * All url will have their cb trigger, but only the first one can answer
 105      * */
 106     int         i_url;
 107     httpd_url_t **url;
 108
 109     int            i_client;
 110     httpd_client_t **client;
 111
 112     /* TLS data */
 113     tls_server_t *p_tls;
 114 };
 115
 116
 117 struct httpd_url_t
 118 {
 119     httpd_host_t *host;
 120
 121     vlc_mutex_t lock;
 122
 123     char      *psz_url;
 124     char      *psz_user;
 125     char      *psz_password;
 126     vlc_acl_t *p_acl;
 127
 128     struct
 129     {
 130         httpd_callback_t     cb;
 131         httpd_callback_sys_t *p_sys;
 132     } catch[HTTPD_MSG_MAX];
 133 };
 134
 135 /* status */
 136 enum
 137 {
 138     HTTPD_CLIENT_RECEIVING,
 139     HTTPD_CLIENT_RECEIVE_DONE,
 140
 141     HTTPD_CLIENT_SENDING,
 142     HTTPD_CLIENT_SEND_DONE,
 143
 144     HTTPD_CLIENT_WAITING,
 145
 146     HTTPD_CLIENT_DEAD,
 147
 148     HTTPD_CLIENT_TLS_HS_IN,
 149     HTTPD_CLIENT_TLS_HS_OUT
 150 };
 151
 152 /* mode */
 153 enum
 154 {
 155     HTTPD_CLIENT_FILE,      /* default */
 156     HTTPD_CLIENT_STREAM,    /* regulary get data from cb */
 157     HTTPD_CLIENT_BIDIR,     /* check for reading and get data from cb */
 158 };
 159
 160 struct httpd_client_t
 161 {
 162     httpd_url_t *url;
 163
 164     int     i_ref;
 165
 166     int     fd;
 167
 168     int     i_mode;
 169     int     i_state;
 170     int     b_read_waiting; /* stop as soon as possible sending */
 171
 172     mtime_t i_activity_date;
 173     mtime_t i_activity_timeout;
 174
 175     /* buffer for reading header */
 176     int     i_buffer_size;
 177     int     i_buffer;
 178     uint8_t *p_buffer;
 179
 180     /* */
 181     httpd_message_t query;  /* client -> httpd */
 182     httpd_message_t answer; /* httpd -> client */
 183
 184     /* TLS data */
 185     tls_session_t *p_tls;
 186 };
 187
 188
 189 /*****************************************************************************
 190  * Various functions
 191  *****************************************************************************/
 192 static const struct
 193 {
 194     const char psz_ext[8];
 195     const char *psz_mime;
 196 } http_mime[] =
 197 {
 198     { ".htm",   "text/html" },
 199     { ".html",  "text/html" },
 200     { ".txt",   "text/plain" },
 201     { ".xml",   "text/xml" },
 202     { ".dtd",   "text/dtd" },
 203
 204     { ".css",   "text/css" },
 205
 206     /* image mime */
 207     { ".gif",   "image/gif" },
 208     { ".jpe",   "image/jpeg" },
 209     { ".jpg",   "image/jpeg" },
 210     { ".jpeg",  "image/jpeg" },
 211     { ".png",   "image/png" },
 212     /* same as modules/mux/mpjpeg.c here: */
 213     { ".mpjpeg","multipart/x-mixed-replace; boundary=7b3cc56e5f51db803f790dad720ed50a" },
 214
 215     /* media mime */
 216     { ".avi",   "video/avi" },
 217     { ".asf",   "video/x-ms-asf" },
 218     { ".m1a",   "audio/mpeg" },
 219     { ".m2a",   "audio/mpeg" },
 220     { ".m1v",   "video/mpeg" },
 221     { ".m2v",   "video/mpeg" },
 222     { ".mp2",   "audio/mpeg" },
 223     { ".mp3",   "audio/mpeg" },
 224     { ".mpa",   "audio/mpeg" },
 225     { ".mpg",   "video/mpeg" },
 226     { ".mpeg",  "video/mpeg" },
 227     { ".mpe",   "video/mpeg" },
 228     { ".mov",   "video/quicktime" },
 229     { ".moov",  "video/quicktime" },
 230     { ".ogg",   "application/ogg" },
 231     { ".ogm",   "application/ogg" },
 232     { ".wav",   "audio/wav" },
 233     { ".wma",   "audio/x-ms-wma" },
 234     { ".wmv",   "video/x-ms-wmv" },
 235
 236
 237     /* end */
 238     { "",       "" }
 239 };
 240
 241 static const char *httpd_MimeFromUrl( const char *psz_url )
 242 {
 243
 244     char *psz_ext;
 245
 246     psz_ext = strrchr( psz_url, '.' );
 247     if( psz_ext )
 248     {
 249         int i;
 250
 251         for( i = 0; http_mime[i].psz_ext[0] ; i++ )
 252         {
 253             if( !strcasecmp( http_mime[i].psz_ext, psz_ext ) )
 254             {
 255                 return http_mime[i].psz_mime;
 256             }
 257         }
 258     }
 259     return "application/octet-stream";
 260 }
 261
 262
 263 typedef struct
 264 {
 265     unsigned   i_code;
 266     const char psz_reason[36];
 267 } http_status_info;
 268
 269 static const http_status_info http_reason[] =
 270 {
 271   /*{ 100, "Continue" },
 272     { 101, "Switching Protocols" },*/
 273     { 200, "OK" },
 274   /*{ 201, "Created" },
 275     { 202, "Accepted" },
 276     { 203, "Non-authoritative information" },
 277     { 204, "No content" },
 278     { 205, "Reset content" },
 279     { 206, "Partial content" },
 280     { 250, "Low on storage space" },
 281     { 300, "Multiple choices" },*/
 282     { 301, "Moved permanently" },
 283   /*{ 302, "Moved temporarily" },
 284     { 303, "See other" },
 285     { 304, "Not modified" },
 286     { 305, "Use proxy" },
 287     { 307, "Temporary redirect" },
 288     { 400, "Bad request" },*/
 289     { 401, "Unauthorized" },
 290   /*{ 402, "Payment Required" },*/
 291     { 403, "Forbidden" },
 292     { 404, "Not found" },
 293     { 405, "Method not allowed" },
 294   /*{ 406, "Not acceptable" },
 295     { 407, "Proxy authentication required" },
 296     { 408, "Request time-out" },
 297     { 409, "Conflict" },
 298     { 410, "Gone" },
 299     { 411, "Length required" },
 300     { 412, "Precondition failed" },
 301     { 413, "Request entity too large" },
 302     { 414, "Request-URI too large" },
 303     { 415, "Unsupported media Type" },
 304     { 416, "Requested range not satisfiable" },
 305     { 417, "Expectation failed" },
 306     { 451, "Parameter not understood" },
 307     { 452, "Conference not found" },
 308     { 453, "Not enough bandwidth" },*/
 309     { 454, "Session not found" },
 310   /*{ 455, "Method not valid in this State" },*/
 311     { 456, "Header field not valid for resource" },
 312   /*{ 457, "Invalid range" },
 313     { 458, "Read-only parameter" },*/
 314     { 459, "Aggregate operation not allowed" },
 315     { 460, "Non-aggregate operation not allowed" },
 316     { 461, "Unsupported transport" },
 317   /*{ 462, "Destination unreachable" },*/
 318     { 500, "Internal server error" },
 319     { 501, "Not implemented" },
 320   /*{ 502, "Bad gateway" },*/
 321     { 503, "Service unavailable" },
 322   /*{ 504, "Gateway time-out" },*/
 323     { 505, "Protocol version not supported" },
 324     { 551, "Option not supported" },
 325     { 999, "" }
 326 };
 327
 328 static const char psz_fallback_reason[5][16] =
 329 { "Continue", "OK", "Found", "Client error", "Server error" };
 330
 331 static const char *httpd_ReasonFromCode( unsigned i_code )
 332 {
 333     const http_status_info *p;
 334
 335     assert( ( i_code >= 100 ) && ( i_code <= 599 ) );
 336
 337     for (p = http_reason; i_code > p->i_code; p++);
 338
 339     if( p->i_code == i_code )
 340         return p->psz_reason;
 341
 342     return psz_fallback_reason[(i_code / 100) - 1];
 343 }
 344
 345
 346 static size_t httpd_HtmlError (char **body, int code, const char *url)
 347 {
 348     const char *errname = httpd_ReasonFromCode (code);
 349     assert (errname != NULL);
 350
 351     int res = asprintf (body,
 352         "<?xml version=\"1.0\" encoding=\"ascii\" ?>\n"
 353         "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\""
 354         " \"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
 355         "<html lang=\"en\">\n"
 356         "<head>\n"
 357         "<title>%s</title>\n"
 358         "</head>\n"
 359         "<body>\n"
 360         "<h1>%d %s%s%s%s</h1>\n"
 361         "<hr />\n"
 362         "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
 363         "</body>\n"
 364         "</html>\n", errname, code, errname,
 365         (url ? " (" : ""), (url ?: ""), (url ? ")" : ""));
 366
 367     if (res == -1)
 368     {
 369         *body = NULL;
 370         return 0;
 371     }
 372
 373     return (size_t)res;
 374 }
 375
 376
 377 /*****************************************************************************
 378  * High Level Functions: httpd_file_t
 379  *****************************************************************************/
 380 struct httpd_file_t
 381 {
 382     httpd_url_t *url;
 383
 384     char *psz_url;
 385     char *psz_mime;
 386
 387     httpd_file_callback_t pf_fill;
 388     httpd_file_sys_t      *p_sys;
 389
 390 };
 391
 392 static int
 393 httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
 394                     httpd_message_t *answer, const httpd_message_t *query )
 395 {
 396     httpd_file_t *file = (httpd_file_t*)p_sys;
 397     uint8_t **pp_body, *p_body;
 398     const char *psz_connection;
 399     int *pi_body, i_body;
 400
 401     if( answer == NULL || query == NULL )
 402     {
 403         return VLC_SUCCESS;
 404     }
 405     answer->i_proto  = HTTPD_PROTO_HTTP;
 406     answer->i_version= 1;
 407     answer->i_type   = HTTPD_MSG_ANSWER;
 408
 409     answer->i_status = 200;
 410
 411     httpd_MsgAdd( answer, "Content-type",  "%s", file->psz_mime );
 412     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 413
 414     if( query->i_type != HTTPD_MSG_HEAD )
 415     {
 416         pp_body = &answer->p_body;
 417         pi_body = &answer->i_body;
 418     }
 419     else
 420     {
 421         /* The file still needs to be executed. */
 422         p_body = NULL;
 423         i_body = 0;
 424         pp_body = &p_body;
 425         pi_body = &i_body;
 426     }
 427
 428     if( query->i_type == HTTPD_MSG_POST )
 429     {
 430         /* msg_Warn not supported */
 431     }
 432
 433     uint8_t *psz_args = query->psz_args;
 434     file->pf_fill( file->p_sys, file, psz_args, pp_body, pi_body );
 435
 436     if( query->i_type == HTTPD_MSG_HEAD && p_body != NULL )
 437     {
 438         free( p_body );
 439     }
 440
 441     /* We respect client request */
 442     psz_connection = httpd_MsgGet( &cl->query, "Connection" );
 443     if( psz_connection != NULL )
 444     {
 445         httpd_MsgAdd( answer, "Connection", "%s", psz_connection );
 446     }
 447
 448     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 449
 450     return VLC_SUCCESS;
 451 }
 452
 453 httpd_file_t *httpd_FileNew( httpd_host_t *host,
 454                              const char *psz_url, const char *psz_mime,
 455                              const char *psz_user, const char *psz_password,
 456                              const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
 457                              httpd_file_sys_t *p_sys )
 458 {
 459     httpd_file_t *file = malloc( sizeof( httpd_file_t ) );
 460
 461     if( ( file->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 462                                           psz_password, p_acl )
 463         ) == NULL )
 464     {
 465         free( file );
 466         return NULL;
 467     }
 468
 469     file->psz_url  = strdup( psz_url );
 470     if( psz_mime && *psz_mime )
 471     {
 472         file->psz_mime = strdup( psz_mime );
 473     }
 474     else
 475     {
 476         file->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 477     }
 478
 479     file->pf_fill = pf_fill;
 480     file->p_sys   = p_sys;
 481
 482     httpd_UrlCatch( file->url, HTTPD_MSG_HEAD, httpd_FileCallBack,
 483                     (httpd_callback_sys_t*)file );
 484     httpd_UrlCatch( file->url, HTTPD_MSG_GET,  httpd_FileCallBack,
 485                     (httpd_callback_sys_t*)file );
 486     httpd_UrlCatch( file->url, HTTPD_MSG_POST, httpd_FileCallBack,
 487                     (httpd_callback_sys_t*)file );
 488
 489     return file;
 490 }
 491
 492 httpd_file_sys_t *httpd_FileDelete( httpd_file_t *file )
 493 {
 494     httpd_file_sys_t *p_sys = file->p_sys;
 495
 496     httpd_UrlDelete( file->url );
 497
 498     free( file->psz_url );
 499     free( file->psz_mime );
 500
 501     free( file );
 502
 503     return p_sys;
 504 }
 505
 506 /*****************************************************************************
 507  * High Level Functions: httpd_handler_t (for CGIs)
 508  *****************************************************************************/
 509 struct httpd_handler_t
 510 {
 511     httpd_url_t *url;
 512
 513     httpd_handler_callback_t pf_fill;
 514     httpd_handler_sys_t      *p_sys;
 515
 516 };
 517
 518 static int
 519 httpd_HandlerCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
 520                        httpd_message_t *answer, const httpd_message_t *query )
 521 {
 522     httpd_handler_t *handler = (httpd_handler_t*)p_sys;
 523     char psz_remote_addr[NI_MAXNUMERICHOST];
 524
 525     if( answer == NULL || query == NULL )
 526     {
 527         return VLC_SUCCESS;
 528     }
 529     answer->i_proto  = HTTPD_PROTO_NONE;
 530     answer->i_type   = HTTPD_MSG_ANSWER;
 531
 532     /* We do it ourselves, thanks */
 533     answer->i_status = 0;
 534
 535     if( httpd_ClientIP( cl, psz_remote_addr ) == NULL )
 536         *psz_remote_addr = '\0';
 537
 538     uint8_t *psz_args = query->psz_args;
 539     handler->pf_fill( handler->p_sys, handler, query->psz_url, psz_args,
 540                       query->i_type, query->p_body, query->i_body,
 541                       psz_remote_addr, NULL,
 542                       &answer->p_body, &answer->i_body );
 543
 544     if( query->i_type == HTTPD_MSG_HEAD )
 545     {
 546         char *p = (char *)answer->p_body;
 547
 548         /* Looks for end of header (i.e. one empty line) */
 549         while ( (p = strchr( p, '\r' )) != NULL )
 550         {
 551             if( p[1] && p[1] == '\n' && p[2] && p[2] == '\r'
 552                  && p[3] && p[3] == '\n' )
 553             {
 554                 break;
 555             }
 556         }
 557
 558         if( p != NULL )
 559         {
 560             p[4] = '\0';
 561             answer->i_body = strlen((char*)answer->p_body) + 1;
 562             answer->p_body = realloc( answer->p_body, answer->i_body );
 563         }
 564     }
 565
 566     if( strncmp( (char *)answer->p_body, "HTTP/1.", 7 ) )
 567     {
 568         int i_status, i_headers;
 569         char *psz_headers, *psz_new;
 570         const char *psz_status;
 571
 572         if( !strncmp( (char *)answer->p_body, "Status: ", 8 ) )
 573         {
 574             /* Apache-style */
 575             i_status = strtol( (char *)&answer->p_body[8], &psz_headers, 0 );
 576             if( *psz_headers ) psz_headers++;
 577             if( *psz_headers ) psz_headers++;
 578             i_headers = answer->i_body - (psz_headers - (char *)answer->p_body);
 579         }
 580         else
 581         {
 582             i_status = 200;
 583             psz_headers = (char *)answer->p_body;
 584             i_headers = answer->i_body;
 585         }
 586
 587         psz_status = httpd_ReasonFromCode( i_status );
 588         answer->i_body = sizeof("HTTP/1.0 xxx \r\n")
 589                         + strlen(psz_status) + i_headers - 1;
 590         psz_new = (char *)malloc( answer->i_body + 1);
 591         sprintf( psz_new, "HTTP/1.0 %03d %s\r\n", i_status, psz_status );
 592         memcpy( &psz_new[strlen(psz_new)], psz_headers, i_headers );
 593         free( answer->p_body );
 594         answer->p_body = (uint8_t *)psz_new;
 595     }
 596
 597     return VLC_SUCCESS;
 598 }
 599
 600 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
 601                                    const char *psz_user,
 602                                    const char *psz_password,
 603                                    const vlc_acl_t *p_acl,
 604                                    httpd_handler_callback_t pf_fill,
 605                                    httpd_handler_sys_t *p_sys )
 606 {
 607     httpd_handler_t *handler = malloc( sizeof( httpd_handler_t ) );
 608
 609     if( ( handler->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 610                                              psz_password, p_acl )
 611         ) == NULL )
 612     {
 613         free( handler );
 614         return NULL;
 615     }
 616
 617     handler->pf_fill = pf_fill;
 618     handler->p_sys   = p_sys;
 619
 620     httpd_UrlCatch( handler->url, HTTPD_MSG_HEAD, httpd_HandlerCallBack,
 621                     (httpd_callback_sys_t*)handler );
 622     httpd_UrlCatch( handler->url, HTTPD_MSG_GET,  httpd_HandlerCallBack,
 623                     (httpd_callback_sys_t*)handler );
 624     httpd_UrlCatch( handler->url, HTTPD_MSG_POST, httpd_HandlerCallBack,
 625                     (httpd_callback_sys_t*)handler );
 626
 627     return handler;
 628 }
 629
 630 httpd_handler_sys_t *httpd_HandlerDelete( httpd_handler_t *handler )
 631 {
 632     httpd_handler_sys_t *p_sys = handler->p_sys;
 633     httpd_UrlDelete( handler->url );
 634     free( handler );
 635     return p_sys;
 636 }
 637
 638 /*****************************************************************************
 639  * High Level Functions: httpd_redirect_t
 640  *****************************************************************************/
 641 struct httpd_redirect_t
 642 {
 643     httpd_url_t *url;
 644     char        *psz_dst;
 645 };
 646
 647 static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
 648                                    httpd_client_t *cl, httpd_message_t *answer,
 649                                    const httpd_message_t *query )
 650 {
 651     httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
 652     char *p_body;
 653     (void)cl;
 654
 655     if( answer == NULL || query == NULL )
 656     {
 657         return VLC_SUCCESS;
 658     }
 659     answer->i_proto  = HTTPD_PROTO_HTTP;
 660     answer->i_version= 1;
 661     answer->i_type   = HTTPD_MSG_ANSWER;
 662     answer->i_status = 301;
 663
 664     answer->i_body = httpd_HtmlError (&p_body, 301, rdir->psz_dst);
 665     answer->p_body = (unsigned char *)p_body;
 666
 667     /* XXX check if it's ok or we need to set an absolute url */
 668     httpd_MsgAdd( answer, "Location",  "%s", rdir->psz_dst );
 669
 670     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 671
 672     return VLC_SUCCESS;
 673 }
 674
 675 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
 676                                      const char *psz_url_src )
 677 {
 678     httpd_redirect_t *rdir = malloc( sizeof( httpd_redirect_t ) );
 679
 680     if( !( rdir->url = httpd_UrlNewUnique( host, psz_url_src, NULL, NULL, NULL ) ) )
 681     {
 682         free( rdir );
 683         return NULL;
 684     }
 685     rdir->psz_dst = strdup( psz_url_dst );
 686
 687     /* Redirect apply for all HTTP request and RTSP DESCRIBE resquest */
 688     httpd_UrlCatch( rdir->url, HTTPD_MSG_HEAD, httpd_RedirectCallBack,
 689                     (httpd_callback_sys_t*)rdir );
 690     httpd_UrlCatch( rdir->url, HTTPD_MSG_GET, httpd_RedirectCallBack,
 691                     (httpd_callback_sys_t*)rdir );
 692     httpd_UrlCatch( rdir->url, HTTPD_MSG_POST, httpd_RedirectCallBack,
 693                     (httpd_callback_sys_t*)rdir );
 694     httpd_UrlCatch( rdir->url, HTTPD_MSG_DESCRIBE, httpd_RedirectCallBack,
 695                     (httpd_callback_sys_t*)rdir );
 696
 697     return rdir;
 698 }
 699 void httpd_RedirectDelete( httpd_redirect_t *rdir )
 700 {
 701     httpd_UrlDelete( rdir->url );
 702     free( rdir->psz_dst );
 703     free( rdir );
 704 }
 705
 706 /*****************************************************************************
 707  * High Level Funtions: httpd_stream_t
 708  *****************************************************************************/
 709 struct httpd_stream_t
 710 {
 711     vlc_mutex_t lock;
 712     httpd_url_t *url;
 713
 714     char    *psz_mime;
 715
 716     /* Header to send as first packet */
 717     uint8_t *p_header;
 718     int     i_header;
 719
 720     /* circular buffer */
 721     int         i_buffer_size;      /* buffer size, can't be reallocated smaller */
 722     uint8_t     *p_buffer;          /* buffer */
 723     int64_t     i_buffer_pos;       /* absolute position from begining */
 724     int64_t     i_buffer_last_pos;  /* a new connection will start with that */
 725 };
 726
 727 static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
 728                                  httpd_client_t *cl, httpd_message_t *answer,
 729                                  const httpd_message_t *query )
 730 {
 731     httpd_stream_t *stream = (httpd_stream_t*)p_sys;
 732
 733     if( answer == NULL || query == NULL || cl == NULL )
 734     {
 735         return VLC_SUCCESS;
 736     }
 737
 738     if( answer->i_body_offset > 0 )
 739     {
 740         int64_t i_write;
 741         int     i_pos;
 742
 743 #if 0
 744         fprintf( stderr, "httpd_StreamCallBack i_body_offset=%lld\n",
 745                  answer->i_body_offset );
 746 #endif
 747
 748         if( answer->i_body_offset >= stream->i_buffer_pos )
 749         {
 750             /* fprintf( stderr, "httpd_StreamCallBack: no data\n" ); */
 751             return VLC_EGENERIC;    /* wait, no data available */
 752         }
 753         if( answer->i_body_offset + stream->i_buffer_size <
 754             stream->i_buffer_pos )
 755         {
 756             /* this client isn't fast enough */
 757 #if 0
 758             fprintf( stderr, "fixing i_body_offset (old=%lld new=%lld)\n",
 759                      answer->i_body_offset, stream->i_buffer_last_pos );
 760 #endif
 761             answer->i_body_offset = stream->i_buffer_last_pos;
 762         }
 763
 764         i_pos   = answer->i_body_offset % stream->i_buffer_size;
 765         i_write = stream->i_buffer_pos - answer->i_body_offset;
 766         if( i_write > HTTPD_CL_BUFSIZE )
 767         {
 768             i_write = HTTPD_CL_BUFSIZE;
 769         }
 770         else if( i_write <= 0 )
 771         {
 772             return VLC_EGENERIC;    /* wait, no data available */
 773         }
 774
 775         /* Don't go past the end of the circular buffer */
 776         i_write = __MIN( i_write, stream->i_buffer_size - i_pos );
 777
 778         /* using HTTPD_MSG_ANSWER -> data available */
 779         answer->i_proto  = HTTPD_PROTO_HTTP;
 780         answer->i_version= 0;
 781         answer->i_type   = HTTPD_MSG_ANSWER;
 782
 783         answer->i_body = i_write;
 784         answer->p_body = malloc( i_write );
 785         memcpy( answer->p_body, &stream->p_buffer[i_pos], i_write );
 786
 787         answer->i_body_offset += i_write;
 788
 789         return VLC_SUCCESS;
 790     }
 791     else
 792     {
 793         answer->i_proto  = HTTPD_PROTO_HTTP;
 794         answer->i_version= 0;
 795         answer->i_type   = HTTPD_MSG_ANSWER;
 796
 797         answer->i_status = 200;
 798
 799         if( query->i_type != HTTPD_MSG_HEAD )
 800         {
 801             httpd_ClientModeStream( cl );
 802             vlc_mutex_lock( &stream->lock );
 803             /* Send the header */
 804             if( stream->i_header > 0 )
 805             {
 806                 answer->i_body = stream->i_header;
 807                 answer->p_body = malloc( stream->i_header );
 808                 memcpy( answer->p_body, stream->p_header, stream->i_header );
 809             }
 810             answer->i_body_offset = stream->i_buffer_last_pos;
 811             vlc_mutex_unlock( &stream->lock );
 812         }
 813         else
 814         {
 815             httpd_MsgAdd( answer, "Content-Length", "%d", 0 );
 816             answer->i_body_offset = 0;
 817         }
 818
 819         if( !strcmp( stream->psz_mime, "video/x-ms-asf-stream" ) )
 820         {
 821             bool b_xplaystream = false;
 822             int i;
 823
 824             httpd_MsgAdd( answer, "Content-type", "%s",
 825                           "application/octet-stream" );
 826             httpd_MsgAdd( answer, "Server", "Cougar 4.1.0.3921" );
 827             httpd_MsgAdd( answer, "Pragma", "no-cache" );
 828             httpd_MsgAdd( answer, "Pragma", "client-id=%d", rand()&0x7fff );
 829             httpd_MsgAdd( answer, "Pragma", "features=\"broadcast\"" );
 830
 831             /* Check if there is a xPlayStrm=1 */
 832             for( i = 0; i < query->i_name; i++ )
 833             {
 834                 if( !strcasecmp( query->name[i],  "Pragma" ) &&
 835                     strstr( query->value[i], "xPlayStrm=1" ) )
 836                 {
 837                     b_xplaystream = true;
 838                 }
 839             }
 840
 841             if( !b_xplaystream )
 842             {
 843                 answer->i_body_offset = 0;
 844             }
 845         }
 846         else
 847         {
 848             httpd_MsgAdd( answer, "Content-type",  "%s", stream->psz_mime );
 849         }
 850         httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 851         return VLC_SUCCESS;
 852     }
 853 }
 854
 855 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
 856                                  const char *psz_url, const char *psz_mime,
 857                                  const char *psz_user, const char *psz_password,
 858                                  const vlc_acl_t *p_acl )
 859 {
 860     httpd_stream_t *stream = malloc( sizeof( httpd_stream_t ) );
 861
 862     if( ( stream->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 863                                             psz_password, p_acl )
 864         ) == NULL )
 865     {
 866         free( stream );
 867         return NULL;
 868     }
 869     vlc_mutex_init( &stream->lock );
 870     if( psz_mime && *psz_mime )
 871     {
 872         stream->psz_mime = strdup( psz_mime );
 873     }
 874     else
 875     {
 876         stream->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 877     }
 878     stream->i_header = 0;
 879     stream->p_header = NULL;
 880     stream->i_buffer_size = 5000000;    /* 5 Mo per stream */
 881     stream->p_buffer = malloc( stream->i_buffer_size );
 882     /* We set to 1 to make life simpler
 883      * (this way i_body_offset can never be 0) */
 884     stream->i_buffer_pos = 1;
 885     stream->i_buffer_last_pos = 1;
 886
 887     httpd_UrlCatch( stream->url, HTTPD_MSG_HEAD, httpd_StreamCallBack,
 888                     (httpd_callback_sys_t*)stream );
 889     httpd_UrlCatch( stream->url, HTTPD_MSG_GET, httpd_StreamCallBack,
 890                     (httpd_callback_sys_t*)stream );
 891     httpd_UrlCatch( stream->url, HTTPD_MSG_POST, httpd_StreamCallBack,
 892                     (httpd_callback_sys_t*)stream );
 893
 894     return stream;
 895 }
 896
 897 int httpd_StreamHeader( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 898 {
 899     vlc_mutex_lock( &stream->lock );
 900     free( stream->p_header );
 901     stream->p_header = NULL;
 902
 903     stream->i_header = i_data;
 904     if( i_data > 0 )
 905     {
 906         stream->p_header = malloc( i_data );
 907         memcpy( stream->p_header, p_data, i_data );
 908     }
 909     vlc_mutex_unlock( &stream->lock );
 910
 911     return VLC_SUCCESS;
 912 }
 913
 914 int httpd_StreamSend( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 915 {
 916     int i_count;
 917     int i_pos;
 918
 919     if( i_data < 0 || p_data == NULL )
 920     {
 921         return VLC_SUCCESS;
 922     }
 923     vlc_mutex_lock( &stream->lock );
 924
 925     /* save this pointer (to be used by new connection) */
 926     stream->i_buffer_last_pos = stream->i_buffer_pos;
 927
 928     i_pos = stream->i_buffer_pos % stream->i_buffer_size;
 929     i_count = i_data;
 930     while( i_count > 0)
 931     {
 932         int i_copy;
 933
 934         i_copy = __MIN( i_count, stream->i_buffer_size - i_pos );
 935
 936         /* Ok, we can't go past the end of our buffer */
 937         memcpy( &stream->p_buffer[i_pos], p_data, i_copy );
 938
 939         i_pos = ( i_pos + i_copy ) % stream->i_buffer_size;
 940         i_count -= i_copy;
 941         p_data  += i_copy;
 942     }
 943
 944     stream->i_buffer_pos += i_data;
 945
 946     vlc_mutex_unlock( &stream->lock );
 947     return VLC_SUCCESS;
 948 }
 949
 950 void httpd_StreamDelete( httpd_stream_t *stream )
 951 {
 952     httpd_UrlDelete( stream->url );
 953     vlc_mutex_destroy( &stream->lock );
 954     free( stream->psz_mime );
 955     free( stream->p_header );
 956     free( stream->p_buffer );
 957     free( stream );
 958 }
 959
 960 /*****************************************************************************
 961  * Low level
 962  *****************************************************************************/
 963 static void* httpd_HostThread( vlc_object_t * );
 964
 965 /* create a new host */
 966 httpd_host_t *httpd_HostNew( vlc_object_t *p_this, const char *psz_host,
 967                              int i_port )
 968 {
 969     return httpd_TLSHostNew( p_this, psz_host, i_port, NULL, NULL, NULL, NULL
 970                            );
 971 }
 972
 973 static const char psz_object_type[] = "http server";
 974
 975 httpd_host_t *httpd_TLSHostNew( vlc_object_t *p_this, const char *psz_hostname,
 976                                 int i_port,
 977                                 const char *psz_cert, const char *psz_key,
 978                                 const char *psz_ca, const char *psz_crl )
 979 {
 980     httpd_t      *httpd;
 981     httpd_host_t *host;
 982     tls_server_t *p_tls;
 983     char *psz_host;
 984     vlc_value_t  lockval, ptrval;
 985     int i;
 986
 987     if( psz_hostname == NULL )
 988         psz_hostname = "";
 989
 990     psz_host = strdup( psz_hostname );
 991     if( psz_host == NULL )
 992         return NULL;
 993
 994     /* to be sure to avoid multiple creation */
 995     var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
 996     var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
 997     vlc_mutex_lock( lockval.p_address );
 998     httpd = libvlc_priv (p_this->p_libvlc)->p_httpd;
 999
1000     if( httpd == NULL )
1001     {
1002         msg_Info( p_this, "creating httpd" );
1003         httpd = (httpd_t *)vlc_custom_create( p_this, sizeof (*httpd),
1004                                               VLC_OBJECT_GENERIC,
1005                                               psz_object_type );
1006         if( httpd == NULL )
1007         {
1008             vlc_mutex_unlock( lockval.p_address );
1009             free( psz_host );
1010             return NULL;
1011         }
1012
1013         httpd->i_host = 0;
1014         httpd->host   = NULL;
1015
1016         ptrval.p_address = httpd;
1017         libvlc_priv (p_this->p_libvlc)->p_httpd = httpd;
1018         vlc_object_hold( httpd );
1019         vlc_object_attach( httpd, p_this->p_libvlc );
1020     }
1021
1022     /* verify if it already exist */
1023     for( i = httpd->i_host - 1; i >= 0; i-- )
1024     {
1025         host = httpd->host[i];
1026
1027         /* cannot mix TLS and non-TLS hosts */
1028         if( ( ( httpd->host[i]->p_tls != NULL ) != ( psz_cert != NULL ) )
1029          || ( host->i_port != i_port )
1030          || strcmp( host->psz_hostname, psz_hostname ) )
1031             continue;
1032
1033         /* yep found */
1034         host->i_ref++;
1035
1036         vlc_mutex_unlock( lockval.p_address );
1037         return host;
1038     }
1039
1040     host = NULL;
1041
1042     /* determine TLS configuration */
1043     if ( psz_cert != NULL )
1044     {
1045         p_tls = tls_ServerCreate( p_this, psz_cert, psz_key );
1046         if ( p_tls == NULL )
1047         {
1048             msg_Err( p_this, "TLS initialization error" );
1049             goto error;
1050         }
1051
1052         if ( ( psz_ca != NULL) && tls_ServerAddCA( p_tls, psz_ca ) )
1053         {
1054             msg_Err( p_this, "TLS CA error" );
1055             goto error;
1056         }
1057
1058         if ( ( psz_crl != NULL) && tls_ServerAddCRL( p_tls, psz_crl ) )
1059         {
1060             msg_Err( p_this, "TLS CRL error" );
1061             goto error;
1062         }
1063     }
1064     else
1065         p_tls = NULL;
1066
1067     /* create the new host */
1068     host = (httpd_host_t *)vlc_custom_create( p_this, sizeof (*host),
1069                                               VLC_OBJECT_GENERIC,
1070                                               psz_object_type );
1071     if (host == NULL)
1072         goto error;
1073
1074     vlc_object_lock( host );
1075     if( vlc_object_waitpipe( VLC_OBJECT( host ) ) == -1 )
1076     {
1077         msg_Err( host, "signaling pipe error: %m" );
1078         vlc_object_unlock( host );
1079         goto error;
1080     }
1081     vlc_object_unlock( host );
1082
1083     host->httpd = httpd;
1084     vlc_mutex_init( &host->lock );
1085     host->i_ref = 1;
1086
1087     host->fds = net_ListenTCP( p_this, psz_host, i_port );
1088     if( host->fds == NULL )
1089     {
1090         msg_Err( p_this, "cannot create socket(s) for HTTP host" );
1091         goto error;
1092     }
1093     for (host->nfd = 0; host->fds[host->nfd] != -1; host->nfd++);
1094
1095     host->i_port = i_port;
1096     host->psz_hostname = psz_host;
1097
1098     host->i_url     = 0;
1099     host->url       = NULL;
1100     host->i_client  = 0;
1101     host->client    = NULL;
1102
1103     host->p_tls = p_tls;
1104
1105     /* create the thread */
1106     if( vlc_thread_create( host, "httpd host thread", httpd_HostThread,
1107                            VLC_THREAD_PRIORITY_LOW, false ) )
1108     {
1109         msg_Err( p_this, "cannot spawn http host thread" );
1110         goto error;
1111     }
1112
1113     /* now add it to httpd */
1114     TAB_APPEND( httpd->i_host, httpd->host, host );
1115     vlc_mutex_unlock( lockval.p_address );
1116
1117     return host;
1118
1119 error:
1120     free( psz_host );
1121     if( httpd->i_host <= 0 )
1122     {
1123         vlc_object_release( httpd );
1124         vlc_object_detach( httpd );
1125         vlc_object_release( httpd );
1126     }
1127     vlc_mutex_unlock( lockval.p_address );
1128
1129     if( host != NULL )
1130     {
1131         net_ListenClose( host->fds );
1132         vlc_mutex_destroy( &host->lock );
1133         vlc_object_release( host );
1134     }
1135
1136     if( p_tls != NULL )
1137         tls_ServerDelete( p_tls );
1138
1139     return NULL;
1140 }
1141
1142 /* delete a host */
1143 void httpd_HostDelete( httpd_host_t *host )
1144 {
1145     httpd_t *httpd = host->httpd;
1146     vlc_value_t lockval;
1147     int i;
1148
1149     var_Get( httpd->p_libvlc, "httpd_mutex", &lockval );
1150     vlc_mutex_lock( lockval.p_address );
1151
1152     host->i_ref--;
1153     if( host->i_ref > 0 )
1154     {
1155         /* still used */
1156         vlc_mutex_unlock( lockval.p_address );
1157         msg_Dbg( host, "httpd_HostDelete: host still used" );
1158         return;
1159     }
1160     TAB_REMOVE( httpd->i_host, httpd->host, host );
1161
1162     vlc_object_kill( host );
1163     vlc_thread_join( host );
1164
1165     msg_Dbg( host, "HTTP host removed" );
1166
1167     for( i = 0; i < host->i_url; i++ )
1168     {
1169         msg_Err( host, "url still registered: %s", host->url[i]->psz_url );
1170     }
1171     for( i = 0; i < host->i_client; i++ )
1172     {
1173         httpd_client_t *cl = host->client[i];
1174         msg_Warn( host, "client still connected" );
1175         httpd_ClientClean( cl );
1176         TAB_REMOVE( host->i_client, host->client, cl );
1177         free( cl );
1178         i--;
1179         /* TODO */
1180     }
1181
1182     if( host->p_tls != NULL)
1183         tls_ServerDelete( host->p_tls );
1184
1185     net_ListenClose( host->fds );
1186     free( host->psz_hostname );
1187
1188     vlc_mutex_destroy( &host->lock );
1189     vlc_object_release( host );
1190
1191     vlc_object_release( httpd );
1192     if( httpd->i_host <= 0 )
1193     {
1194         msg_Dbg( httpd, "no host left, stopping httpd" );
1195
1196         libvlc_priv (httpd->p_libvlc)->p_httpd = NULL;
1197         vlc_object_detach( httpd );
1198         vlc_object_release( httpd );
1199
1200     }
1201     vlc_mutex_unlock( lockval.p_address );
1202 }
1203
1204 /* register a new url */
1205 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, const char *psz_url,
1206                                          const char *psz_user, const char *psz_password,
1207                                          const vlc_acl_t *p_acl, bool b_check )
1208 {
1209     httpd_url_t *url;
1210     int         i;
1211
1212     assert( psz_url != NULL );
1213
1214     vlc_mutex_lock( &host->lock );
1215     if( b_check )
1216     {
1217         for( i = 0; i < host->i_url; i++ )
1218         {
1219             if( !strcmp( psz_url, host->url[i]->psz_url ) )
1220             {
1221                 msg_Warn( host->httpd,
1222                           "cannot add '%s' (url already defined)", psz_url );
1223                 vlc_mutex_unlock( &host->lock );
1224                 return NULL;
1225             }
1226         }
1227     }
1228
1229     url = malloc( sizeof( httpd_url_t ) );
1230     url->host = host;
1231
1232     vlc_mutex_init( &url->lock );
1233     url->psz_url = strdup( psz_url );
1234     url->psz_user = strdup( psz_user ? psz_user : "" );
1235     url->psz_password = strdup( psz_password ? psz_password : "" );
1236     url->p_acl = ACL_Duplicate( host, p_acl );
1237     for( i = 0; i < HTTPD_MSG_MAX; i++ )
1238     {
1239         url->catch[i].cb = NULL;
1240         url->catch[i].p_sys = NULL;
1241     }
1242
1243     TAB_APPEND( host->i_url, host->url, url );
1244     vlc_mutex_unlock( &host->lock );
1245
1246     return url;
1247 }
1248
1249 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
1250                            const char *psz_user, const char *psz_password,
1251                            const vlc_acl_t *p_acl )
1252 {
1253     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1254                                 psz_password, p_acl, false );
1255 }
1256
1257 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
1258                                  const char *psz_user, const char *psz_password,
1259                                  const vlc_acl_t *p_acl )
1260 {
1261     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1262                                 psz_password, p_acl, true );
1263 }
1264
1265 /* register callback on a url */
1266 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1267                     httpd_callback_sys_t *p_sys )
1268 {
1269     vlc_mutex_lock( &url->lock );
1270     url->catch[i_msg].cb   = cb;
1271     url->catch[i_msg].p_sys= p_sys;
1272     vlc_mutex_unlock( &url->lock );
1273
1274     return VLC_SUCCESS;
1275 }
1276
1277 /* delete an url */
1278 void httpd_UrlDelete( httpd_url_t *url )
1279 {
1280     httpd_host_t *host = url->host;
1281     int          i;
1282
1283     vlc_mutex_lock( &host->lock );
1284     TAB_REMOVE( host->i_url, host->url, url );
1285
1286     vlc_mutex_destroy( &url->lock );
1287     free( url->psz_url );
1288     free( url->psz_user );
1289     free( url->psz_password );
1290     ACL_Destroy( url->p_acl );
1291
1292     for( i = 0; i < host->i_client; i++ )
1293     {
1294         httpd_client_t *client = host->client[i];
1295
1296         if( client->url == url )
1297         {
1298             /* TODO complete it */
1299             msg_Warn( host, "force closing connections" );
1300             httpd_ClientClean( client );
1301             TAB_REMOVE( host->i_client, host->client, client );
1302             free( client );
1303             i--;
1304         }
1305     }
1306     free( url );
1307     vlc_mutex_unlock( &host->lock );
1308 }
1309
1310 void httpd_MsgInit( httpd_message_t *msg )
1311 {
1312     msg->cl         = NULL;
1313     msg->i_type     = HTTPD_MSG_NONE;
1314     msg->i_proto    = HTTPD_PROTO_NONE;
1315     msg->i_version  = -1; /* FIXME */
1316
1317     msg->i_status   = 0;
1318
1319     msg->psz_url    = NULL;
1320     msg->psz_args   = NULL;
1321
1322     msg->i_channel  = -1;
1323
1324     msg->i_name     = 0;
1325     msg->name       = NULL;
1326     msg->i_value    = 0;
1327     msg->value      = NULL;
1328
1329     msg->i_body_offset = 0;
1330     msg->i_body        = 0;
1331     msg->p_body        = NULL;
1332 }
1333
1334 void httpd_MsgClean( httpd_message_t *msg )
1335 {
1336     int i;
1337
1338     free( msg->psz_url );
1339     free( msg->psz_args );
1340     for( i = 0; i < msg->i_name; i++ )
1341     {
1342         free( msg->name[i] );
1343         free( msg->value[i] );
1344     }
1345     free( msg->name );
1346     free( msg->value );
1347     free( msg->p_body );
1348     httpd_MsgInit( msg );
1349 }
1350
1351 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
1352 {
1353     int i;
1354
1355     for( i = 0; i < msg->i_name; i++ )
1356     {
1357         if( !strcasecmp( msg->name[i], name ))
1358         {
1359             return msg->value[i];
1360         }
1361     }
1362     return NULL;
1363 }
1364
1365 void httpd_MsgAdd( httpd_message_t *msg, const char *name, const char *psz_value, ... )
1366 {
1367     va_list args;
1368     char *value = NULL;
1369
1370     va_start( args, psz_value );
1371     if( vasprintf( &value, psz_value, args ) == -1 )
1372         value = NULL;
1373     va_end( args );
1374
1375     if( value == NULL )
1376         return;
1377
1378     name = strdup( name );
1379     if( name == NULL )
1380     {
1381         free( value );
1382         return;
1383     }
1384
1385     TAB_APPEND( msg->i_name,  msg->name,  (char*)name );
1386     TAB_APPEND( msg->i_value, msg->value, value );
1387 }
1388
1389 static void httpd_ClientInit( httpd_client_t *cl, mtime_t now )
1390 {
1391     cl->i_state = HTTPD_CLIENT_RECEIVING;
1392     cl->i_activity_date = now;
1393     cl->i_activity_timeout = INT64_C(10000000);
1394     cl->i_buffer_size = HTTPD_CL_BUFSIZE;
1395     cl->i_buffer = 0;
1396     cl->p_buffer = malloc( cl->i_buffer_size );
1397     cl->i_mode   = HTTPD_CLIENT_FILE;
1398     cl->b_read_waiting = false;
1399
1400     httpd_MsgInit( &cl->query );
1401     httpd_MsgInit( &cl->answer );
1402 }
1403
1404 void httpd_ClientModeStream( httpd_client_t *cl )
1405 {
1406     cl->i_mode   = HTTPD_CLIENT_STREAM;
1407 }
1408
1409 void httpd_ClientModeBidir( httpd_client_t *cl )
1410 {
1411     cl->i_mode   = HTTPD_CLIENT_BIDIR;
1412 }
1413
1414 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
1415 {
1416     return net_GetPeerAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1417 }
1418
1419 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
1420 {
1421     return net_GetSockAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1422 }
1423
1424 static void httpd_ClientClean( httpd_client_t *cl )
1425 {
1426     if( cl->fd >= 0 )
1427     {
1428         if( cl->p_tls != NULL )
1429             tls_ServerSessionClose( cl->p_tls );
1430         net_Close( cl->fd );
1431         cl->fd = -1;
1432     }
1433
1434     httpd_MsgClean( &cl->answer );
1435     httpd_MsgClean( &cl->query );
1436
1437     free( cl->p_buffer );
1438     cl->p_buffer = NULL;
1439 }
1440
1441 static httpd_client_t *httpd_ClientNew( int fd, tls_session_t *p_tls, mtime_t now )
1442 {
1443     httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1444
1445     if( !cl ) return NULL;
1446
1447     cl->i_ref   = 0;
1448     cl->fd      = fd;
1449     cl->url     = NULL;
1450     cl->p_tls = p_tls;
1451
1452     httpd_ClientInit( cl, now );
1453
1454     return cl;
1455 }
1456
1457 static
1458 ssize_t httpd_NetRecv (httpd_client_t *cl, uint8_t *p, size_t i_len)
1459 {
1460     tls_session_t *p_tls;
1461     ssize_t val;
1462
1463     p_tls = cl->p_tls;
1464     do
1465         val = p_tls ? tls_Recv (p_tls, p, i_len)
1466                     : recv (cl->fd, p, i_len, 0);
1467     while (val == -1 && errno == EINTR);
1468     return val;
1469 }
1470
1471 static
1472 ssize_t httpd_NetSend (httpd_client_t *cl, const uint8_t *p, size_t i_len)
1473 {
1474     tls_session_t *p_tls;
1475     ssize_t val;
1476
1477     p_tls = cl->p_tls;
1478     do
1479         val = p_tls ? tls_Send( p_tls, p, i_len )
1480                     : send (cl->fd, p, i_len, 0);
1481     while (val == -1 && errno == EINTR);
1482     return val;
1483 }
1484
1485
1486 static const struct
1487 {
1488     const char name[16];
1489     int  i_type;
1490     int  i_proto;
1491 }
1492 msg_type[] =
1493 {
1494     { "OPTIONS",       HTTPD_MSG_OPTIONS,      HTTPD_PROTO_RTSP },
1495     { "DESCRIBE",      HTTPD_MSG_DESCRIBE,     HTTPD_PROTO_RTSP },
1496     { "SETUP",         HTTPD_MSG_SETUP,        HTTPD_PROTO_RTSP },
1497     { "PLAY",          HTTPD_MSG_PLAY,         HTTPD_PROTO_RTSP },
1498     { "PAUSE",         HTTPD_MSG_PAUSE,        HTTPD_PROTO_RTSP },
1499     { "GET_PARAMETER", HTTPD_MSG_GETPARAMETER, HTTPD_PROTO_RTSP },
1500     { "TEARDOWN",      HTTPD_MSG_TEARDOWN,     HTTPD_PROTO_RTSP },
1501     { "GET",           HTTPD_MSG_GET,          HTTPD_PROTO_HTTP },
1502     { "HEAD",          HTTPD_MSG_HEAD,         HTTPD_PROTO_HTTP },
1503     { "POST",          HTTPD_MSG_POST,         HTTPD_PROTO_HTTP },
1504     { "",              HTTPD_MSG_NONE,         HTTPD_PROTO_NONE }
1505 };
1506
1507
1508 static void httpd_ClientRecv( httpd_client_t *cl )
1509 {
1510     int i_len;
1511
1512     /* ignore leading whites */
1513     if( ( cl->query.i_proto == HTTPD_PROTO_NONE ) &&
1514         ( cl->i_buffer == 0 ) )
1515     {
1516         unsigned char c;
1517
1518         i_len = httpd_NetRecv( cl, &c, 1 );
1519
1520         if( ( i_len > 0 ) && ( strchr( "\r\n\t ", c ) == NULL ) )
1521         {
1522             cl->p_buffer[0] = c;
1523             cl->i_buffer++;
1524         }
1525     }
1526     else
1527     if( cl->query.i_proto == HTTPD_PROTO_NONE )
1528     {
1529         /* enough to see if it's Interleaved RTP over RTSP or RTSP/HTTP */
1530         i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
1531                                7 - cl->i_buffer );
1532         if( i_len > 0 )
1533         {
1534             cl->i_buffer += i_len;
1535         }
1536
1537         if( ( cl->i_buffer >= 4 ) && ( cl->p_buffer[0] == '$' ) )
1538         {
1539             /* Interleaved RTP over RTSP */
1540             cl->query.i_proto = HTTPD_PROTO_RTSP;
1541             cl->query.i_type  = HTTPD_MSG_CHANNEL;
1542             cl->query.i_channel = cl->p_buffer[1];
1543             cl->query.i_body  = (cl->p_buffer[2] << 8)|cl->p_buffer[3];
1544             cl->query.p_body  = malloc( cl->query.i_body );
1545             cl->i_buffer      -= 4;
1546             memcpy( cl->query.p_body, cl->p_buffer + 4, cl->i_buffer );
1547         }
1548         else
1549         /* The smallest legal request is 7 bytes ("GET /\r\n"),
1550          * this is the maximum we can ask at this point. */
1551         if( cl->i_buffer >= 7 )
1552         {
1553             if( !memcmp( cl->p_buffer, "HTTP/1.", 7 ) )
1554             {
1555                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1556                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1557             }
1558             else if( !memcmp( cl->p_buffer, "RTSP/1.", 7 ) )
1559             {
1560                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1561                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1562             }
1563             else
1564             {
1565                 /* We need the full request line to determine the protocol. */
1566                 cl->query.i_proto = HTTPD_PROTO_HTTP0;
1567                 cl->query.i_type  = HTTPD_MSG_NONE;
1568             }
1569         }
1570     }
1571     else if( cl->query.i_body > 0 )
1572     {
1573         /* we are reading the body of a request or a channel */
1574         i_len = httpd_NetRecv( cl, &cl->query.p_body[cl->i_buffer],
1575                                cl->query.i_body - cl->i_buffer );
1576         if( i_len > 0 )
1577         {
1578             cl->i_buffer += i_len;
1579         }
1580         if( cl->i_buffer >= cl->query.i_body )
1581         {
1582             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1583         }
1584     }
1585     else
1586     {
1587         /* we are reading a header -> char by char */
1588         for( ;; )
1589         {
1590             if( cl->i_buffer == cl->i_buffer_size )
1591             {
1592                 uint8_t *newbuf = realloc( cl->p_buffer, cl->i_buffer_size + 1024 );
1593                 if( newbuf == NULL )
1594                 {
1595                     i_len = 0;
1596                     break;
1597                 }
1598
1599                 cl->p_buffer = newbuf;
1600                 cl->i_buffer_size += 1024;
1601             }
1602
1603             i_len = httpd_NetRecv (cl, &cl->p_buffer[cl->i_buffer], 1 );
1604             if( i_len <= 0 )
1605             {
1606                 break;
1607             }
1608             cl->i_buffer++;
1609
1610             if( ( cl->query.i_proto == HTTPD_PROTO_HTTP0 )
1611              && ( cl->p_buffer[cl->i_buffer - 1] == '\n' ) )
1612             {
1613                 /* Request line is now complete */
1614                 const char *p = memchr( cl->p_buffer, ' ', cl->i_buffer );
1615                 size_t len;
1616
1617                 assert( cl->query.i_type == HTTPD_MSG_NONE );
1618
1619                 if( p == NULL ) /* no URI: evil guy */
1620                 {
1621                     i_len = 0; /* drop connection */
1622                     break;
1623                 }
1624
1625                 do
1626                     p++; /* skips extra spaces */
1627                 while( *p == ' ' );
1628
1629                 p = memchr( p, ' ', ((char *)cl->p_buffer) + cl->i_buffer - p );
1630                 if( p == NULL ) /* no explicit protocol: HTTP/0.9 */
1631                 {
1632                     i_len = 0; /* not supported currently -> drop */
1633                     break;
1634                 }
1635
1636                 do
1637                     p++; /* skips extra spaces ever again */
1638                 while( *p == ' ' );
1639
1640                 len = ((char *)cl->p_buffer) + cl->i_buffer - p;
1641                 if( len < 7 ) /* foreign protocol */
1642                     i_len = 0; /* I don't understand -> drop */
1643                 else
1644                 if( memcmp( p, "HTTP/1.", 7 ) == 0 )
1645                 {
1646                     cl->query.i_proto = HTTPD_PROTO_HTTP;
1647                     cl->query.i_version = atoi( p + 7 );
1648                 }
1649                 else
1650                 if( memcmp( p, "RTSP/1.", 7 ) == 0 )
1651                 {
1652                     cl->query.i_proto = HTTPD_PROTO_RTSP;
1653                     cl->query.i_version = atoi( p + 7 );
1654                 }
1655                 else
1656                 if( memcmp( p, "HTTP/", 5 ) == 0 )
1657                 {
1658                     const uint8_t sorry[] =
1659                        "HTTP/1.1 505 Unknown HTTP version\r\n\r\n";
1660                     httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1661                     i_len = 0; /* drop */
1662                 }
1663                 else
1664                 if( memcmp( p, "RTSP/", 5 ) == 0 )
1665                 {
1666                     const uint8_t sorry[] =
1667                         "RTSP/1.0 505 Unknown RTSP version\r\n\r\n";
1668                     httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1669                     i_len = 0; /* drop */
1670                 }
1671                 else /* yet another foreign protocol */
1672                     i_len = 0;
1673
1674                 if( i_len == 0 )
1675                     break;
1676             }
1677
1678             if( ( cl->i_buffer >= 2 && !memcmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1679                 ( cl->i_buffer >= 4 && !memcmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1680             {
1681                 char *p;
1682
1683                 /* we have finished the header so parse it and set i_body */
1684                 cl->p_buffer[cl->i_buffer] = '\0';
1685
1686                 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1687                 {
1688                     /* FIXME:
1689                      * assume strlen( "HTTP/1.x" ) = 8
1690                      */
1691                     cl->query.i_status =
1692                         strtol( (char *)&cl->p_buffer[8],
1693                                 &p, 0 );
1694                     while( *p == ' ' )
1695                         p++;
1696                 }
1697                 else
1698                 {
1699                     unsigned i;
1700
1701                     p = NULL;
1702                     cl->query.i_type = HTTPD_MSG_NONE;
1703
1704                     /*fprintf( stderr, "received new request=%s\n", cl->p_buffer);*/
1705
1706                     for( i = 0; msg_type[i].name[0]; i++ )
1707                     {
1708                         if( !strncmp( (char *)cl->p_buffer, msg_type[i].name,
1709                                       strlen( msg_type[i].name ) ) )
1710                         {
1711                             p = (char *)&cl->p_buffer[strlen(msg_type[i].name) + 1 ];
1712                             cl->query.i_type = msg_type[i].i_type;
1713                             if( cl->query.i_proto != msg_type[i].i_proto )
1714                             {
1715                                 p = NULL;
1716                                 cl->query.i_proto = HTTPD_PROTO_NONE;
1717                                 cl->query.i_type = HTTPD_MSG_NONE;
1718                             }
1719                             break;
1720                         }
1721                     }
1722                     if( p == NULL )
1723                     {
1724                         if( strstr( (char *)cl->p_buffer, "HTTP/1." ) )
1725                         {
1726                             cl->query.i_proto = HTTPD_PROTO_HTTP;
1727                         }
1728                         else if( strstr( (char *)cl->p_buffer, "RTSP/1." ) )
1729                         {
1730                             cl->query.i_proto = HTTPD_PROTO_RTSP;
1731                         }
1732                     }
1733                     else
1734                     {
1735                         char *p2;
1736                         char *p3;
1737
1738                         while( *p == ' ' )
1739                         {
1740                             p++;
1741                         }
1742                         p2 = strchr( p, ' ' );
1743                         if( p2 )
1744                         {
1745                             *p2++ = '\0';
1746                         }
1747                         if( !strncasecmp( p, "rtsp:", 5 ) )
1748                         {
1749                             /* for rtsp url, you have rtsp://localhost:port/path */
1750                             p += 5;
1751                             while( *p == '/' ) p++;
1752                             while( *p && *p != '/' ) p++;
1753                         }
1754                         cl->query.psz_url = strdup( p );
1755                         if( ( p3 = strchr( cl->query.psz_url, '?' ) )  )
1756                         {
1757                             *p3++ = '\0';
1758                             cl->query.psz_args = (uint8_t *)strdup( p3 );
1759                         }
1760                         p = p2;
1761                     }
1762                 }
1763                 if( p )
1764                 {
1765                     p = strchr( p, '\n' );
1766                 }
1767                 if( p )
1768                 {
1769                     while( *p == '\n' || *p == '\r' )
1770                     {
1771                         p++;
1772                     }
1773                     while( p && *p != '\0' )
1774                     {
1775                         char *line = p;
1776                         char *eol = p = strchr( p, '\n' );
1777                         char *colon;
1778
1779                         while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1780                         {
1781                             *eol-- = '\0';
1782                         }
1783
1784                         if( ( colon = strchr( line, ':' ) ) )
1785                         {
1786                             char *name;
1787                             char *value;
1788
1789                             *colon++ = '\0';
1790                             while( *colon == ' ' )
1791                             {
1792                                 colon++;
1793                             }
1794                             name = strdup( line );
1795                             value = strdup( colon );
1796
1797                             TAB_APPEND( cl->query.i_name, cl->query.name, name );
1798                             TAB_APPEND( cl->query.i_value,cl->query.value,value);
1799
1800                             if( !strcasecmp( name, "Content-Length" ) )
1801                             {
1802                                 cl->query.i_body = atol( value );
1803                             }
1804                         }
1805
1806                         if( p )
1807                         {
1808                             p++;
1809                             while( *p == '\n' || *p == '\r' )
1810                             {
1811                                 p++;
1812                             }
1813                         }
1814                     }
1815                 }
1816                 if( cl->query.i_body > 0 )
1817                 {
1818                     /* TODO Mhh, handle the case client will only send a
1819                      * request and close the connection
1820                      * to mark and of body (probably only RTSP) */
1821                     cl->query.p_body = malloc( cl->query.i_body );
1822                     cl->i_buffer = 0;
1823                 }
1824                 else
1825                 {
1826                     cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1827                 }
1828             }
1829         }
1830     }
1831
1832     /* check if the client is to be set to dead */
1833 #if defined( WIN32 ) || defined( UNDER_CE )
1834     if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1835 #else
1836     if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1837 #endif
1838     {
1839         if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1840         {
1841             /* connection closed -> end of data */
1842             if( cl->query.i_body > 0 )
1843             {
1844                 cl->query.i_body = cl->i_buffer;
1845             }
1846             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1847         }
1848         else
1849         {
1850             cl->i_state = HTTPD_CLIENT_DEAD;
1851         }
1852     }
1853
1854     /* XXX: for QT I have to disable timeout. Try to find why */
1855     if( cl->query.i_proto == HTTPD_PROTO_RTSP )
1856         cl->i_activity_timeout = 0;
1857
1858 #if 0 /* Debugging only */
1859     if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1860     {
1861         int i;
1862
1863         fprintf( stderr, "received new request\n" );
1864         fprintf( stderr, "  - proto=%s\n",
1865                  cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1866         fprintf( stderr, "  - version=%d\n", cl->query.i_version );
1867         fprintf( stderr, "  - msg=%d\n", cl->query.i_type );
1868         if( cl->query.i_type == HTTPD_MSG_ANSWER )
1869         {
1870             fprintf( stderr, "  - answer=%d '%s'\n", cl->query.i_status,
1871                      cl->query.psz_status );
1872         }
1873         else if( cl->query.i_type != HTTPD_MSG_NONE )
1874         {
1875             fprintf( stderr, "  - url=%s\n", cl->query.psz_url );
1876         }
1877         for( i = 0; i < cl->query.i_name; i++ )
1878         {
1879             fprintf( stderr, "  - option name='%s' value='%s'\n",
1880                      cl->query.name[i], cl->query.value[i] );
1881         }
1882     }
1883 #endif
1884 }
1885
1886 static void httpd_ClientSend( httpd_client_t *cl )
1887 {
1888     int i;
1889     int i_len;
1890
1891     if( cl->i_buffer < 0 )
1892     {
1893         /* We need to create the header */
1894         int i_size = 0;
1895         char *p;
1896         const char *psz_status = httpd_ReasonFromCode( cl->answer.i_status );
1897
1898         i_size = strlen( "HTTP/1.") + 10 + 10 + strlen( psz_status ) + 5;
1899         for( i = 0; i < cl->answer.i_name; i++ )
1900         {
1901             i_size += strlen( cl->answer.name[i] ) + 2 +
1902                       strlen( cl->answer.value[i] ) + 2;
1903         }
1904
1905         if( cl->i_buffer_size < i_size )
1906         {
1907             cl->i_buffer_size = i_size;
1908             free( cl->p_buffer );
1909             cl->p_buffer = malloc( i_size );
1910         }
1911         p = (char *)cl->p_buffer;
1912
1913         p += sprintf( p, "%s.%u %d %s\r\n",
1914                       cl->answer.i_proto ==  HTTPD_PROTO_HTTP ? "HTTP/1" : "RTSP/1",
1915                       cl->answer.i_version,
1916                       cl->answer.i_status, psz_status );
1917         for( i = 0; i < cl->answer.i_name; i++ )
1918         {
1919             p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1920                           cl->answer.value[i] );
1921         }
1922         p += sprintf( p, "\r\n" );
1923
1924         cl->i_buffer = 0;
1925         cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1926
1927         /*fprintf( stderr, "sending answer\n" );
1928         fprintf( stderr, "%s",  cl->p_buffer );*/
1929     }
1930
1931     i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
1932                            cl->i_buffer_size - cl->i_buffer );
1933     if( i_len >= 0 )
1934     {
1935         cl->i_buffer += i_len;
1936
1937         if( cl->i_buffer >= cl->i_buffer_size )
1938         {
1939             if( cl->answer.i_body == 0  && cl->answer.i_body_offset > 0 &&
1940                 !cl->b_read_waiting )
1941             {
1942                 /* catch more body data */
1943                 int     i_msg = cl->query.i_type;
1944                 int64_t i_offset = cl->answer.i_body_offset;
1945
1946                 httpd_MsgClean( &cl->answer );
1947                 cl->answer.i_body_offset = i_offset;
1948
1949                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1950                                           &cl->answer, &cl->query );
1951             }
1952
1953             if( cl->answer.i_body > 0 )
1954             {
1955                 /* send the body data */
1956                 free( cl->p_buffer );
1957                 cl->p_buffer = cl->answer.p_body;
1958                 cl->i_buffer_size = cl->answer.i_body;
1959                 cl->i_buffer = 0;
1960
1961                 cl->answer.i_body = 0;
1962                 cl->answer.p_body = NULL;
1963             }
1964             else
1965             {
1966                 /* send finished */
1967                 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1968             }
1969         }
1970     }
1971     else
1972     {
1973 #if defined( WIN32 ) || defined( UNDER_CE )
1974         if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1975 #else
1976         if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1977 #endif
1978         {
1979             /* error */
1980             cl->i_state = HTTPD_CLIENT_DEAD;
1981         }
1982     }
1983 }
1984
1985 static void httpd_ClientTlsHsIn( httpd_client_t *cl )
1986 {
1987     switch( tls_SessionContinueHandshake( cl->p_tls ) )
1988     {
1989         case 0:
1990             cl->i_state = HTTPD_CLIENT_RECEIVING;
1991             break;
1992
1993         case -1:
1994             cl->i_state = HTTPD_CLIENT_DEAD;
1995             cl->p_tls = NULL;
1996             break;
1997
1998         case 2:
1999             cl->i_state = HTTPD_CLIENT_TLS_HS_OUT;
2000     }
2001 }
2002
2003 static void httpd_ClientTlsHsOut( httpd_client_t *cl )
2004 {
2005     switch( tls_SessionContinueHandshake( cl->p_tls ) )
2006     {
2007         case 0:
2008             cl->i_state = HTTPD_CLIENT_RECEIVING;
2009             break;
2010
2011         case -1:
2012             cl->i_state = HTTPD_CLIENT_DEAD;
2013             cl->p_tls = NULL;
2014             break;
2015
2016         case 1:
2017             cl->i_state = HTTPD_CLIENT_TLS_HS_IN;
2018             break;
2019     }
2020 }
2021
2022 static void* httpd_HostThread( vlc_object_t *p_this )
2023 {
2024     httpd_host_t *host = (httpd_host_t *)p_this;
2025     tls_session_t *p_tls = NULL;
2026     counter_t *p_total_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2027     counter_t *p_active_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2028     int evfd;
2029     bool b_die;
2030     int canc = vlc_savecancel ();
2031
2032 retry:
2033     vlc_object_lock( host );
2034     evfd = vlc_object_waitpipe( VLC_OBJECT( host ) );
2035     b_die = !vlc_object_alive( host );
2036     vlc_object_unlock( host );
2037
2038     while( !b_die )
2039     {
2040         if( host->i_url <= 0 )
2041         {
2042             /* 0.2s (FIXME: use a condition variable) */
2043             msleep( 200000 );
2044             goto retry;
2045         }
2046
2047         /* prepare a new TLS session */
2048         if( ( p_tls == NULL ) && ( host->p_tls != NULL ) )
2049             p_tls = tls_ServerSessionPrepare( host->p_tls );
2050
2051         struct pollfd ufd[host->nfd + host->i_client + 1];
2052         unsigned nfd;
2053         for( nfd = 0; nfd < host->nfd; nfd++ )
2054         {
2055             ufd[nfd].fd = host->fds[nfd];
2056             ufd[nfd].events = POLLIN;
2057             ufd[nfd].revents = 0;
2058         }
2059
2060         /* add all socket that should be read/write and close dead connection */
2061         vlc_mutex_lock( &host->lock );
2062         mtime_t now = mdate();
2063         bool b_low_delay = false;
2064
2065         for(int i_client = 0; i_client < host->i_client; i_client++ )
2066         {
2067             httpd_client_t *cl = host->client[i_client];
2068             if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
2069                 ( cl->i_state == HTTPD_CLIENT_DEAD ||
2070                   ( cl->i_activity_timeout > 0 &&
2071                     cl->i_activity_date+cl->i_activity_timeout < now) ) ) )
2072             {
2073                 httpd_ClientClean( cl );
2074                 stats_UpdateInteger( host, p_active_counter, -1, NULL );
2075                 TAB_REMOVE( host->i_client, host->client, cl );
2076                 free( cl );
2077                 i_client--;
2078                 continue;
2079             }
2080
2081             struct pollfd *pufd = ufd + nfd;
2082             assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
2083
2084             pufd->fd = cl->fd;
2085             pufd->events = pufd->revents = 0;
2086
2087             if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
2088                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
2089             {
2090                 pufd->events = POLLIN;
2091             }
2092             else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
2093                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
2094             {
2095                 pufd->events = POLLOUT;
2096             }
2097             else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
2098             {
2099                 httpd_message_t *answer = &cl->answer;
2100                 httpd_message_t *query  = &cl->query;
2101                 int i_msg = query->i_type;
2102
2103                 httpd_MsgInit( answer );
2104
2105                 /* Handle what we received */
2106                 if( (cl->i_mode != HTTPD_CLIENT_BIDIR) &&
2107                     (i_msg == HTTPD_MSG_ANSWER || i_msg == HTTPD_MSG_CHANNEL) )
2108                 {
2109                     /* we can only receive request from client when not
2110                      * in BIDIR mode */
2111                     cl->url     = NULL;
2112                     cl->i_state = HTTPD_CLIENT_DEAD;
2113                 }
2114                 else if( i_msg == HTTPD_MSG_ANSWER )
2115                 {
2116                     /* We are in BIDIR mode, trigger the callback and then
2117                      * check for new data */
2118                     if( cl->url && cl->url->catch[i_msg].cb )
2119                     {
2120                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2121                                                   cl, NULL, query );
2122                     }
2123                     cl->i_state = HTTPD_CLIENT_WAITING;
2124                 }
2125                 else if( i_msg == HTTPD_MSG_CHANNEL )
2126                 {
2127                     /* We are in BIDIR mode, trigger the callback and then
2128                      * check for new data */
2129                     if( cl->url && cl->url->catch[i_msg].cb )
2130                     {
2131                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2132                                                   cl, NULL, query );
2133                     }
2134                     cl->i_state = HTTPD_CLIENT_WAITING;
2135                 }
2136                 else if( i_msg == HTTPD_MSG_OPTIONS )
2137                 {
2138
2139                     answer->i_type   = HTTPD_MSG_ANSWER;
2140                     answer->i_proto  = query->i_proto;
2141                     answer->i_status = 200;
2142                     answer->i_body = 0;
2143                     answer->p_body = NULL;
2144
2145                     httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING );
2146                     httpd_MsgAdd( answer, "Content-Length", "0" );
2147
2148                     switch( query->i_proto )
2149                     {
2150                         case HTTPD_PROTO_HTTP:
2151                             answer->i_version = 1;
2152                             httpd_MsgAdd( answer, "Allow",
2153                                           "GET,HEAD,POST,OPTIONS" );
2154                             break;
2155
2156                         case HTTPD_PROTO_RTSP:
2157                         {
2158                             const char *p;
2159                             answer->i_version = 0;
2160
2161                             p = httpd_MsgGet( query, "Cseq" );
2162                             if( p != NULL )
2163                                 httpd_MsgAdd( answer, "Cseq", "%s", p );
2164                             p = httpd_MsgGet( query, "Timestamp" );
2165                             if( p != NULL )
2166                                 httpd_MsgAdd( answer, "Timestamp", "%s", p );
2167
2168                             p = httpd_MsgGet( query, "Require" );
2169                             if( p != NULL )
2170                             {
2171                                 answer->i_status = 551;
2172                                 httpd_MsgAdd( query, "Unsupported", "%s", p );
2173                             }
2174
2175                             httpd_MsgAdd( answer, "Public", "DESCRIBE,SETUP,"
2176                                           "TEARDOWN,PLAY,PAUSE,GET_PARAMETER" );
2177                             break;
2178                         }
2179                     }
2180
2181                     cl->i_buffer = -1;  /* Force the creation of the answer in
2182                                          * httpd_ClientSend */
2183                     cl->i_state = HTTPD_CLIENT_SENDING;
2184                 }
2185                 else if( i_msg == HTTPD_MSG_NONE )
2186                 {
2187                     if( query->i_proto == HTTPD_PROTO_NONE )
2188                     {
2189                         cl->url = NULL;
2190                         cl->i_state = HTTPD_CLIENT_DEAD;
2191                     }
2192                     else
2193                     {
2194                         char *p;
2195
2196                         /* unimplemented */
2197                         answer->i_proto  = query->i_proto ;
2198                         answer->i_type   = HTTPD_MSG_ANSWER;
2199                         answer->i_version= 0;
2200                         answer->i_status = 501;
2201
2202                         answer->i_body = httpd_HtmlError (&p, 501, NULL);
2203                         answer->p_body = (uint8_t *)p;
2204                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2205
2206                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2207                         cl->i_state = HTTPD_CLIENT_SENDING;
2208                     }
2209                 }
2210                 else
2211                 {
2212                     bool b_auth_failed = false;
2213                     bool b_hosts_failed = false;
2214
2215                     /* Search the url and trigger callbacks */
2216                     for(int i = 0; i < host->i_url; i++ )
2217                     {
2218                         httpd_url_t *url = host->url[i];
2219
2220                         if( !strcmp( url->psz_url, query->psz_url ) )
2221                         {
2222                             if( url->catch[i_msg].cb )
2223                             {
2224                                 if( answer && ( url->p_acl != NULL ) )
2225                                 {
2226                                     char ip[NI_MAXNUMERICHOST];
2227
2228                                     if( ( httpd_ClientIP( cl, ip ) == NULL )
2229                                      || ACL_Check( url->p_acl, ip ) )
2230                                     {
2231                                         b_hosts_failed = true;
2232                                         break;
2233                                     }
2234                                 }
2235
2236                                 if( answer && ( *url->psz_user || *url->psz_password ) )
2237                                 {
2238                                     /* create the headers */
2239                                     const char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
2240                                     char *user = NULL, *pass = NULL;
2241
2242                                     if( b64 != NULL
2243                                      && !strncasecmp( b64, "BASIC", 5 ) )
2244                                     {
2245                                         b64 += 5;
2246                                         while( *b64 == ' ' )
2247                                             b64++;
2248
2249                                         user = vlc_b64_decode( b64 );
2250                                         if (user != NULL)
2251                                         {
2252                                             pass = strchr (user, ':');
2253                                             if (pass != NULL)
2254                                                 *pass++ = '\0';
2255                                         }
2256                                     }
2257
2258                                     if ((user == NULL) || (pass == NULL)
2259                                      || strcmp (user, url->psz_user)
2260                                      || strcmp (pass, url->psz_password))
2261                                     {
2262                                         httpd_MsgAdd( answer,
2263                                                       "WWW-Authenticate",
2264                                                       "Basic realm=\"%s\"",
2265                                                       url->psz_user );
2266                                         /* We fail for all url */
2267                                         b_auth_failed = true;
2268                                         free( user );
2269                                         break;
2270                                     }
2271
2272                                     free( user );
2273                                 }
2274
2275                                 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
2276                                 {
2277                                     if( answer->i_proto == HTTPD_PROTO_NONE )
2278                                     {
2279                                         /* Raw answer from a CGI */
2280                                         cl->i_buffer = cl->i_buffer_size;
2281                                     }
2282                                     else
2283                                         cl->i_buffer = -1;
2284
2285                                     /* only one url can answer */
2286                                     answer = NULL;
2287                                     if( cl->url == NULL )
2288                                     {
2289                                         cl->url = url;
2290                                     }
2291                                 }
2292                             }
2293                         }
2294                     }
2295
2296                     if( answer )
2297                     {
2298                         char *p;
2299
2300                         answer->i_proto  = query->i_proto;
2301                         answer->i_type   = HTTPD_MSG_ANSWER;
2302                         answer->i_version= 0;
2303
2304                         if( b_hosts_failed )
2305                         {
2306                             answer->i_status = 403;
2307                         }
2308                         else if( b_auth_failed )
2309                         {
2310                             answer->i_status = 401;
2311                         }
2312                         else
2313                         {
2314                             /* no url registered */
2315                             answer->i_status = 404;
2316                         }
2317
2318                         answer->i_body = httpd_HtmlError (&p,
2319                                                           answer->i_status,
2320                                                           query->psz_url);
2321                         answer->p_body = (uint8_t *)p;
2322
2323                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2324                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2325                         httpd_MsgAdd( answer, "Content-Type", "%s", "text/html" );
2326                     }
2327
2328                     cl->i_state = HTTPD_CLIENT_SENDING;
2329                 }
2330             }
2331             else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2332             {
2333                 if( cl->i_mode == HTTPD_CLIENT_FILE || cl->answer.i_body_offset == 0 )
2334                 {
2335                     const char *psz_connection = httpd_MsgGet( &cl->answer, "Connection" );
2336                     const char *psz_query = httpd_MsgGet( &cl->query, "Connection" );
2337                     bool b_connection = false;
2338                     bool b_keepalive = false;
2339                     bool b_query = false;
2340
2341                     cl->url = NULL;
2342                     if( psz_connection )
2343                     {
2344                         b_connection = ( strcasecmp( psz_connection, "Close" ) == 0 );
2345                         b_keepalive = ( strcasecmp( psz_connection, "Keep-Alive" ) == 0 );
2346                     }
2347
2348                     if( psz_query )
2349                     {
2350                         b_query = ( strcasecmp( psz_query, "Close" ) == 0 );
2351                     }
2352
2353                     if( ( ( cl->query.i_proto == HTTPD_PROTO_HTTP ) &&
2354                           ( ( cl->answer.i_version == 0 && b_keepalive ) ||
2355                             ( cl->answer.i_version == 1 && !b_connection ) ) ) ||
2356                         ( ( cl->query.i_proto == HTTPD_PROTO_RTSP ) &&
2357                           !b_query && !b_connection ) )
2358                     {
2359                         httpd_MsgClean( &cl->query );
2360                         httpd_MsgInit( &cl->query );
2361
2362                         cl->i_buffer = 0;
2363                         cl->i_buffer_size = 1000;
2364                         free( cl->p_buffer );
2365                         cl->p_buffer = malloc( cl->i_buffer_size );
2366                         cl->i_state = HTTPD_CLIENT_RECEIVING;
2367                     }
2368                     else
2369                     {
2370                         cl->i_state = HTTPD_CLIENT_DEAD;
2371                     }
2372                     httpd_MsgClean( &cl->answer );
2373                 }
2374                 else if( cl->b_read_waiting )
2375                 {
2376                     /* we have a message waiting for us to read it */
2377                     httpd_MsgClean( &cl->answer );
2378                     httpd_MsgClean( &cl->query );
2379
2380                     cl->i_buffer = 0;
2381                     cl->i_buffer_size = 1000;
2382                     free( cl->p_buffer );
2383                     cl->p_buffer = malloc( cl->i_buffer_size );
2384                     cl->i_state = HTTPD_CLIENT_RECEIVING;
2385                     cl->b_read_waiting = false;
2386                 }
2387                 else
2388                 {
2389                     int64_t i_offset = cl->answer.i_body_offset;
2390                     httpd_MsgClean( &cl->answer );
2391
2392                     cl->answer.i_body_offset = i_offset;
2393                     free( cl->p_buffer );
2394                     cl->p_buffer = NULL;
2395                     cl->i_buffer = 0;
2396                     cl->i_buffer_size = 0;
2397
2398                     cl->i_state = HTTPD_CLIENT_WAITING;
2399                 }
2400             }
2401             else if( cl->i_state == HTTPD_CLIENT_WAITING )
2402             {
2403                 int64_t i_offset = cl->answer.i_body_offset;
2404                 int     i_msg = cl->query.i_type;
2405
2406                 httpd_MsgInit( &cl->answer );
2407                 cl->answer.i_body_offset = i_offset;
2408
2409                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2410                                           &cl->answer, &cl->query );
2411                 if( cl->answer.i_type != HTTPD_MSG_NONE )
2412                 {
2413                     /* we have new data, so re-enter send mode */
2414                     cl->i_buffer      = 0;
2415                     cl->p_buffer      = cl->answer.p_body;
2416                     cl->i_buffer_size = cl->answer.i_body;
2417                     cl->answer.p_body = NULL;
2418                     cl->answer.i_body = 0;
2419                     cl->i_state = HTTPD_CLIENT_SENDING;
2420                 }
2421             }
2422
2423             /* Special for BIDIR mode we also check reading */
2424             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2425                 cl->i_state == HTTPD_CLIENT_SENDING )
2426             {
2427                 pufd->events |= POLLIN;
2428             }
2429
2430             if (pufd->events != 0)
2431                 nfd++;
2432             else
2433                 b_low_delay = true;
2434         }
2435         vlc_mutex_unlock( &host->lock );
2436
2437         ufd[nfd].fd = evfd;
2438         ufd[nfd].events = POLLIN;
2439         ufd[nfd].revents = 0;
2440         nfd++;
2441
2442         /* we will wait 20ms (not too big) if HTTPD_CLIENT_WAITING */
2443         switch( poll( ufd, nfd, b_low_delay ? 20 : -1) )
2444         {
2445             case -1:
2446                 if (errno != EINTR)
2447                 {
2448                     /* Kernel on low memory or a bug: pace */
2449                     msg_Err( host, "polling error: %m" );
2450                     msleep( 100000 );
2451                 }
2452             case 0:
2453                 continue;
2454         }
2455
2456         vlc_object_lock( host );
2457         if( ufd[nfd - 1].revents )
2458         {
2459             b_die = !vlc_object_alive( host );
2460             if( !b_die )
2461                 vlc_object_wait( host );
2462         }
2463         vlc_object_unlock( host );
2464
2465         /* Handle client sockets */
2466         vlc_mutex_lock( &host->lock );
2467         now = mdate();
2468         for( int i_client = 0; i_client < host->i_client; i_client++ )
2469         {
2470             httpd_client_t *cl = host->client[i_client];
2471             const struct pollfd *pufd = &ufd[host->nfd + i_client];
2472
2473             assert( pufd < &ufd[sizeof(ufd) / sizeof(ufd[0])] );
2474
2475             if( cl->fd != pufd->fd )
2476                 continue; // we were not waiting for this client
2477             if( pufd->revents == 0 )
2478                 continue; // no event received
2479
2480             cl->i_activity_date = now;
2481
2482             if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2483             {
2484                 httpd_ClientRecv( cl );
2485             }
2486             else if( cl->i_state == HTTPD_CLIENT_SENDING )
2487             {
2488                 httpd_ClientSend( cl );
2489             }
2490             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_IN )
2491             {
2492                 httpd_ClientTlsHsIn( cl );
2493             }
2494             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT )
2495             {
2496                 httpd_ClientTlsHsOut( cl );
2497             }
2498
2499             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2500                 cl->i_state == HTTPD_CLIENT_SENDING &&
2501                 (pufd->revents & POLLIN) )
2502             {
2503                 cl->b_read_waiting = true;
2504             }
2505         }
2506         vlc_mutex_unlock( &host->lock );
2507
2508         /* Handle server sockets (accept new connections) */
2509         for( nfd = 0; nfd < host->nfd; nfd++ )
2510         {
2511             httpd_client_t *cl;
2512             int i_state = -1;
2513             int fd = ufd[nfd].fd;
2514
2515             assert (fd == host->fds[nfd]);
2516
2517             if( ufd[nfd].revents == 0 )
2518                 continue;
2519
2520             /* */
2521             fd = accept (fd, NULL, NULL);
2522             if (fd == -1)
2523                 continue;
2524
2525             net_SetupSocket (fd);
2526             if( p_tls != NULL )
2527             {
2528                 switch( tls_ServerSessionHandshake( p_tls, fd ) )
2529                 {
2530                     case -1:
2531                         msg_Err( host, "Rejecting TLS connection" );
2532                         net_Close( fd );
2533                         fd = -1;
2534                         p_tls = NULL;
2535                         break;
2536
2537                     case 1: /* missing input - most likely */
2538                         i_state = HTTPD_CLIENT_TLS_HS_IN;
2539                         break;
2540
2541                     case 2: /* missing output */
2542                         i_state = HTTPD_CLIENT_TLS_HS_OUT;
2543                         break;
2544                 }
2545
2546                 if( (p_tls == NULL) != (host->p_tls == NULL) )
2547                     break; // wasted TLS session, cannot accept() anymore
2548             }
2549
2550             stats_UpdateInteger( host, p_total_counter, 1, NULL );
2551             stats_UpdateInteger( host, p_active_counter, 1, NULL );
2552             cl = httpd_ClientNew( fd, p_tls, now );
2553             p_tls = NULL;
2554             vlc_mutex_lock( &host->lock );
2555             TAB_APPEND( host->i_client, host->client, cl );
2556             vlc_mutex_unlock( &host->lock );
2557             if( i_state != -1 )
2558                 cl->i_state = i_state; // override state for TLS
2559
2560             if (host->p_tls != NULL)
2561                 break; // cannot accept further without new TLS session
2562         }
2563
2564     }
2565
2566     if( p_tls != NULL )
2567         tls_ServerSessionClose( p_tls );
2568     if( p_total_counter )
2569         stats_CounterClean( p_total_counter );
2570     if( p_active_counter )
2571         stats_CounterClean( p_active_counter );
2572     vlc_restorecancel (canc);
2573     return NULL;
2574 }
2575
2576 #else /* ENABLE_HTTPD */
2577
2578 /* We just define an empty wrapper */
2579 httpd_host_t *httpd_TLSHostNew( vlc_object_t *a, const char *b,
2580                                 int c,
2581                                 const char *e, const char *f,
2582                                 const char *g, const char* h)
2583 {
2584     msg_Err( a, "HTTP daemon support is disabled" );
2585     return NULL;
2586 }
2587
2588 httpd_host_t *httpd_HostNew( vlc_object_t *a, const char *b,
2589                              int c )
2590 {
2591     msg_Err( a, "HTTP daemon support is disabled" );
2592     return NULL;
2593 }
2594
2595 void httpd_HostDelete( httpd_host_t *a )
2596 {
2597 }
2598
2599 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
2600                            const char *psz_user, const char *psz_password,
2601                            const vlc_acl_t *p_acl )
2602 {
2603     return NULL;
2604 }
2605
2606 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
2607                                  const char *psz_user, const char *psz_password,
2608                                  const vlc_acl_t *p_acl )
2609 {
2610     return NULL;
2611 }
2612
2613 int httpd_UrlCatch( httpd_url_t *a, int b, httpd_callback_t c,
2614                     httpd_callback_sys_t *d )
2615 {
2616     return 0;
2617 }
2618
2619 void httpd_UrlDelete( httpd_url_t *a )
2620 {
2621 }
2622
2623 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
2624 {
2625     return NULL;
2626 }
2627
2628 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
2629 {
2630     return NULL;
2631 }
2632
2633 void httpd_ClientModeStream( httpd_client_t *a )
2634 {
2635 }
2636
2637 void httpd_ClientModeBidir( httpd_client_t *a )
2638 {
2639 }
2640
2641 httpd_file_sys_t *httpd_FileDelete( httpd_file_t *file )
2642 {
2643         return NULL;
2644 }
2645
2646 httpd_file_t *httpd_FileNew( httpd_host_t *host,
2647                              const char *psz_url, const char *psz_mime,
2648                              const char *psz_user, const char *psz_password,
2649                              const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
2650                              httpd_file_sys_t *p_sys )
2651 {
2652     return NULL;
2653 }
2654
2655 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
2656                                    const char *psz_user,
2657                                    const char *psz_password,
2658                                    const vlc_acl_t *p_acl,
2659                                    httpd_handler_callback_t pf_fill,
2660                                    httpd_handler_sys_t *p_sys )
2661 {
2662     return NULL;
2663 }
2664
2665 httpd_handler_sys_t *httpd_HandlerDelete( httpd_handler_t *handler )
2666 {
2667         return NULL;
2668 }
2669
2670 void httpd_RedirectDelete( httpd_redirect_t *a )
2671 {
2672 }
2673
2674 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
2675                                      const char *psz_url_src )
2676 {
2677     return NULL;
2678 }
2679
2680 void httpd_StreamDelete( httpd_stream_t *a )
2681 {
2682 }
2683
2684 int httpd_StreamHeader( httpd_stream_t *a, uint8_t *b, int c )
2685 {
2686     return 0;
2687 }
2688
2689 int httpd_StreamSend ( httpd_stream_t *a, uint8_t *b, int c )
2690 {
2691     return 0;
2692 }
2693
2694 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
2695                                  const char *psz_url, const char *psz_mime,
2696                                  const char *psz_user, const char *psz_password,
2697                                  const vlc_acl_t *p_acl )
2698 {
2699     return NULL;
2700 }
2701
2702 void httpd_MsgInit ( httpd_message_t *a )
2703 {
2704 }
2705
2706 void httpd_MsgAdd  ( httpd_message_t *a, const char *b, const char *c, ... )
2707 {
2708 }
2709
2710 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
2711 {
2712     return "";
2713 }
2714
2715 void httpd_MsgClean( httpd_message_t *a )
2716 {
2717 }
2718
2719 #endif /* ENABLE_HTTPD */