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 #include <assert.h>
  34
  35 #include <vlc_network.h>
  36 #include <vlc_fs.h>
  37 #include <vlc_tls.h>
  38 #include <vlc_acl.h>
  39 #include <vlc_strings.h>
  40 #include <vlc_rand.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_POLL
  51 # include <poll.h>
  52 #endif
  53
  54 #if defined( UNDER_CE )
  55 #   include <winsock.h>
  56 #elif defined( WIN32 )
  57 #   include <winsock2.h>
  58 #else
  59 #   include <sys/socket.h>
  60 #endif
  61
  62 #if defined( WIN32 )
  63 /* We need HUGE buffer otherwise TCP throughput is very limited */
  64 #define HTTPD_CL_BUFSIZE 1000000
  65 #else
  66 #define HTTPD_CL_BUFSIZE 10000
  67 #endif
  68
  69 static void httpd_ClientClean( httpd_client_t *cl );
  70
  71 struct httpd_t
  72 {
  73     VLC_COMMON_MEMBERS
  74
  75     int          i_host;
  76     httpd_host_t **host;
  77 };
  78
  79
  80 /* each host run in his own thread */
  81 struct httpd_host_t
  82 {
  83     VLC_COMMON_MEMBERS
  84
  85     httpd_t     *httpd;
  86
  87     /* ref count */
  88     unsigned    i_ref;
  89
  90     /* address/port and socket for listening at connections */
  91     char        *psz_hostname;
  92     int         i_port;
  93     int         *fds;
  94     unsigned     nfd;
  95
  96     vlc_thread_t thread;
  97     vlc_mutex_t lock;
  98     vlc_cond_t  wait;
  99
 100     /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
 101      * This will slow down the url research but make my live easier
 102      * All url will have their cb trigger, but only the first one can answer
 103      * */
 104     int         i_url;
 105     httpd_url_t **url;
 106
 107     int            i_client;
 108     httpd_client_t **client;
 109
 110     /* TLS data */
 111     tls_server_t *p_tls;
 112 };
 113
 114
 115 struct httpd_url_t
 116 {
 117     httpd_host_t *host;
 118
 119     vlc_mutex_t lock;
 120
 121     char      *psz_url;
 122     char      *psz_user;
 123     char      *psz_password;
 124     vlc_acl_t *p_acl;
 125
 126     struct
 127     {
 128         httpd_callback_t     cb;
 129         httpd_callback_sys_t *p_sys;
 130     } catch[HTTPD_MSG_MAX];
 131 };
 132
 133 /* status */
 134 enum
 135 {
 136     HTTPD_CLIENT_RECEIVING,
 137     HTTPD_CLIENT_RECEIVE_DONE,
 138
 139     HTTPD_CLIENT_SENDING,
 140     HTTPD_CLIENT_SEND_DONE,
 141
 142     HTTPD_CLIENT_WAITING,
 143
 144     HTTPD_CLIENT_DEAD,
 145
 146     HTTPD_CLIENT_TLS_HS_IN,
 147     HTTPD_CLIENT_TLS_HS_OUT
 148 };
 149
 150 /* mode */
 151 enum
 152 {
 153     HTTPD_CLIENT_FILE,      /* default */
 154     HTTPD_CLIENT_STREAM,    /* regulary get data from cb */
 155     HTTPD_CLIENT_BIDIR,     /* check for reading and get data from cb */
 156 };
 157
 158 struct httpd_client_t
 159 {
 160     httpd_url_t *url;
 161
 162     int     i_ref;
 163
 164     int     fd;
 165
 166     int     i_mode;
 167     int     i_state;
 168     int     b_read_waiting; /* stop as soon as possible sending */
 169
 170     mtime_t i_activity_date;
 171     mtime_t i_activity_timeout;
 172
 173     /* buffer for reading header */
 174     int     i_buffer_size;
 175     int     i_buffer;
 176     uint8_t *p_buffer;
 177
 178     /* */
 179     httpd_message_t query;  /* client -> httpd */
 180     httpd_message_t answer; /* httpd -> client */
 181
 182     /* TLS data */
 183     tls_session_t *p_tls;
 184 };
 185
 186
 187 /*****************************************************************************
 188  * Various functions
 189  *****************************************************************************/
 190 static const struct
 191 {
 192     const char psz_ext[8];
 193     const char *psz_mime;
 194 } http_mime[] =
 195 {
 196     { ".htm",   "text/html" },
 197     { ".html",  "text/html" },
 198     { ".txt",   "text/plain" },
 199     { ".xml",   "text/xml" },
 200     { ".dtd",   "text/dtd" },
 201
 202     { ".css",   "text/css" },
 203
 204     /* image mime */
 205     { ".gif",   "image/gif" },
 206     { ".jpe",   "image/jpeg" },
 207     { ".jpg",   "image/jpeg" },
 208     { ".jpeg",  "image/jpeg" },
 209     { ".png",   "image/png" },
 210     /* same as modules/mux/mpjpeg.c here: */
 211     { ".mpjpeg","multipart/x-mixed-replace; boundary=7b3cc56e5f51db803f790dad720ed50a" },
 212
 213     /* media mime */
 214     { ".avi",   "video/avi" },
 215     { ".asf",   "video/x-ms-asf" },
 216     { ".m1a",   "audio/mpeg" },
 217     { ".m2a",   "audio/mpeg" },
 218     { ".m1v",   "video/mpeg" },
 219     { ".m2v",   "video/mpeg" },
 220     { ".mp2",   "audio/mpeg" },
 221     { ".mp3",   "audio/mpeg" },
 222     { ".mpa",   "audio/mpeg" },
 223     { ".mpg",   "video/mpeg" },
 224     { ".mpeg",  "video/mpeg" },
 225     { ".mpe",   "video/mpeg" },
 226     { ".mov",   "video/quicktime" },
 227     { ".moov",  "video/quicktime" },
 228     { ".oga",   "audio/ogg" },
 229     { ".ogg",   "application/ogg" },
 230     { ".ogm",   "application/ogg" },
 231     { ".ogv",   "video/ogg" },
 232     { ".ogx",   "application/ogg" },
 233     { ".spx",   "audio/ogg" },
 234     { ".wav",   "audio/wav" },
 235     { ".wma",   "audio/x-ms-wma" },
 236     { ".wmv",   "video/x-ms-wmv" },
 237
 238
 239     /* end */
 240     { "",       "" }
 241 };
 242
 243 static const char *httpd_MimeFromUrl( const char *psz_url )
 244 {
 245
 246     char *psz_ext;
 247
 248     psz_ext = strrchr( psz_url, '.' );
 249     if( psz_ext )
 250     {
 251         int i;
 252
 253         for( i = 0; http_mime[i].psz_ext[0] ; i++ )
 254         {
 255             if( !strcasecmp( http_mime[i].psz_ext, psz_ext ) )
 256             {
 257                 return http_mime[i].psz_mime;
 258             }
 259         }
 260     }
 261     return "application/octet-stream";
 262 }
 263
 264
 265 typedef struct
 266 {
 267     unsigned   i_code;
 268     const char psz_reason[36];
 269 } http_status_info;
 270
 271 static const http_status_info http_reason[] =
 272 {
 273   /*{ 100, "Continue" },
 274     { 101, "Switching Protocols" },*/
 275     { 200, "OK" },
 276   /*{ 201, "Created" },
 277     { 202, "Accepted" },
 278     { 203, "Non-authoritative information" },
 279     { 204, "No content" },
 280     { 205, "Reset content" },
 281     { 206, "Partial content" },
 282     { 250, "Low on storage space" },
 283     { 300, "Multiple choices" },*/
 284     { 301, "Moved permanently" },
 285   /*{ 302, "Moved temporarily" },
 286     { 303, "See other" },
 287     { 304, "Not modified" },
 288     { 305, "Use proxy" },
 289     { 307, "Temporary redirect" },
 290     { 400, "Bad request" },*/
 291     { 401, "Unauthorized" },
 292   /*{ 402, "Payment Required" },*/
 293     { 403, "Forbidden" },
 294     { 404, "Not found" },
 295     { 405, "Method not allowed" },
 296   /*{ 406, "Not acceptable" },
 297     { 407, "Proxy authentication required" },
 298     { 408, "Request time-out" },
 299     { 409, "Conflict" },
 300     { 410, "Gone" },
 301     { 411, "Length required" },
 302     { 412, "Precondition failed" },
 303     { 413, "Request entity too large" },
 304     { 414, "Request-URI too large" },
 305     { 415, "Unsupported media Type" },
 306     { 416, "Requested range not satisfiable" },
 307     { 417, "Expectation failed" },
 308     { 451, "Parameter not understood" },
 309     { 452, "Conference not found" },
 310     { 453, "Not enough bandwidth" },*/
 311     { 454, "Session not found" },
 312   /*{ 455, "Method not valid in this State" },*/
 313     { 456, "Header field not valid for resource" },
 314   /*{ 457, "Invalid range" },
 315     { 458, "Read-only parameter" },*/
 316     { 459, "Aggregate operation not allowed" },
 317     { 460, "Non-aggregate operation not allowed" },
 318     { 461, "Unsupported transport" },
 319   /*{ 462, "Destination unreachable" },*/
 320     { 500, "Internal server error" },
 321     { 501, "Not implemented" },
 322   /*{ 502, "Bad gateway" },*/
 323     { 503, "Service unavailable" },
 324   /*{ 504, "Gateway time-out" },*/
 325     { 505, "Protocol version not supported" },
 326     { 551, "Option not supported" },
 327     { 999, "" }
 328 };
 329
 330 static const char psz_fallback_reason[5][16] =
 331 { "Continue", "OK", "Found", "Client error", "Server error" };
 332
 333 static const char *httpd_ReasonFromCode( unsigned i_code )
 334 {
 335     const http_status_info *p;
 336
 337     assert( ( i_code >= 100 ) && ( i_code <= 599 ) );
 338
 339     for (p = http_reason; i_code > p->i_code; p++);
 340
 341     if( p->i_code == i_code )
 342         return p->psz_reason;
 343
 344     return psz_fallback_reason[(i_code / 100) - 1];
 345 }
 346
 347
 348 static size_t httpd_HtmlError (char **body, int code, const char *url)
 349 {
 350     const char *errname = httpd_ReasonFromCode (code);
 351     assert (errname != NULL);
 352
 353     int res = asprintf (body,
 354         "<?xml version=\"1.0\" encoding=\"ascii\" ?>\n"
 355         "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\""
 356         " \"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
 357         "<html lang=\"en\">\n"
 358         "<head>\n"
 359         "<title>%s</title>\n"
 360         "</head>\n"
 361         "<body>\n"
 362         "<h1>%d %s%s%s%s</h1>\n"
 363         "<hr />\n"
 364         "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
 365         "</body>\n"
 366         "</html>\n", errname, code, errname,
 367         (url ? " (" : ""), (url ? url : ""), (url ? ")" : ""));
 368
 369     if (res == -1)
 370     {
 371         *body = NULL;
 372         return 0;
 373     }
 374
 375     return (size_t)res;
 376 }
 377
 378
 379 /*****************************************************************************
 380  * High Level Functions: httpd_file_t
 381  *****************************************************************************/
 382 struct httpd_file_t
 383 {
 384     httpd_url_t *url;
 385
 386     char *psz_url;
 387     char *psz_mime;
 388
 389     httpd_file_callback_t pf_fill;
 390     httpd_file_sys_t      *p_sys;
 391
 392 };
 393
 394 static int
 395 httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
 396                     httpd_message_t *answer, const httpd_message_t *query )
 397 {
 398     httpd_file_t *file = (httpd_file_t*)p_sys;
 399     uint8_t **pp_body, *p_body;
 400     const char *psz_connection;
 401     int *pi_body, i_body;
 402
 403     if( answer == NULL || query == NULL )
 404     {
 405         return VLC_SUCCESS;
 406     }
 407     answer->i_proto  = HTTPD_PROTO_HTTP;
 408     answer->i_version= 1;
 409     answer->i_type   = HTTPD_MSG_ANSWER;
 410
 411     answer->i_status = 200;
 412
 413     httpd_MsgAdd( answer, "Content-type",  "%s", file->psz_mime );
 414     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 415
 416     if( query->i_type != HTTPD_MSG_HEAD )
 417     {
 418         pp_body = &answer->p_body;
 419         pi_body = &answer->i_body;
 420     }
 421     else
 422     {
 423         /* The file still needs to be executed. */
 424         p_body = NULL;
 425         i_body = 0;
 426         pp_body = &p_body;
 427         pi_body = &i_body;
 428     }
 429
 430     if( query->i_type == HTTPD_MSG_POST )
 431     {
 432         /* msg_Warn not supported */
 433     }
 434
 435     uint8_t *psz_args = query->psz_args;
 436     file->pf_fill( file->p_sys, file, psz_args, pp_body, pi_body );
 437
 438     if( query->i_type == HTTPD_MSG_HEAD && p_body != NULL )
 439     {
 440         free( p_body );
 441     }
 442
 443     /* We respect client request */
 444     psz_connection = httpd_MsgGet( &cl->query, "Connection" );
 445     if( psz_connection != NULL )
 446     {
 447         httpd_MsgAdd( answer, "Connection", "%s", psz_connection );
 448     }
 449
 450     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 451
 452     return VLC_SUCCESS;
 453 }
 454
 455 httpd_file_t *httpd_FileNew( httpd_host_t *host,
 456                              const char *psz_url, const char *psz_mime,
 457                              const char *psz_user, const char *psz_password,
 458                              const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
 459                              httpd_file_sys_t *p_sys )
 460 {
 461     httpd_file_t *file = xmalloc( sizeof( httpd_file_t ) );
 462
 463     if( ( file->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 464                                           psz_password, p_acl )
 465         ) == NULL )
 466     {
 467         free( file );
 468         return NULL;
 469     }
 470
 471     file->psz_url  = strdup( psz_url );
 472     if( psz_mime && *psz_mime )
 473     {
 474         file->psz_mime = strdup( psz_mime );
 475     }
 476     else
 477     {
 478         file->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 479     }
 480
 481     file->pf_fill = pf_fill;
 482     file->p_sys   = p_sys;
 483
 484     httpd_UrlCatch( file->url, HTTPD_MSG_HEAD, httpd_FileCallBack,
 485                     (httpd_callback_sys_t*)file );
 486     httpd_UrlCatch( file->url, HTTPD_MSG_GET,  httpd_FileCallBack,
 487                     (httpd_callback_sys_t*)file );
 488     httpd_UrlCatch( file->url, HTTPD_MSG_POST, httpd_FileCallBack,
 489                     (httpd_callback_sys_t*)file );
 490
 491     return file;
 492 }
 493
 494 httpd_file_sys_t *httpd_FileDelete( httpd_file_t *file )
 495 {
 496     httpd_file_sys_t *p_sys = file->p_sys;
 497
 498     httpd_UrlDelete( file->url );
 499
 500     free( file->psz_url );
 501     free( file->psz_mime );
 502
 503     free( file );
 504
 505     return p_sys;
 506 }
 507
 508 /*****************************************************************************
 509  * High Level Functions: httpd_handler_t (for CGIs)
 510  *****************************************************************************/
 511 struct httpd_handler_t
 512 {
 513     httpd_url_t *url;
 514
 515     httpd_handler_callback_t pf_fill;
 516     httpd_handler_sys_t      *p_sys;
 517
 518 };
 519
 520 static int
 521 httpd_HandlerCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
 522                        httpd_message_t *answer, const httpd_message_t *query )
 523 {
 524     httpd_handler_t *handler = (httpd_handler_t*)p_sys;
 525     char psz_remote_addr[NI_MAXNUMERICHOST];
 526
 527     if( answer == NULL || query == NULL )
 528     {
 529         return VLC_SUCCESS;
 530     }
 531     answer->i_proto  = HTTPD_PROTO_NONE;
 532     answer->i_type   = HTTPD_MSG_ANSWER;
 533
 534     /* We do it ourselves, thanks */
 535     answer->i_status = 0;
 536
 537     if( httpd_ClientIP( cl, psz_remote_addr ) == NULL )
 538         *psz_remote_addr = '\0';
 539
 540     uint8_t *psz_args = query->psz_args;
 541     handler->pf_fill( handler->p_sys, handler, query->psz_url, psz_args,
 542                       query->i_type, query->p_body, query->i_body,
 543                       psz_remote_addr, NULL,
 544                       &answer->p_body, &answer->i_body );
 545
 546     if( query->i_type == HTTPD_MSG_HEAD )
 547     {
 548         char *p = (char *)answer->p_body;
 549
 550         /* Looks for end of header (i.e. one empty line) */
 551         while ( (p = strchr( p, '\r' )) != NULL )
 552         {
 553             if( p[1] && p[1] == '\n' && p[2] && p[2] == '\r'
 554                  && p[3] && p[3] == '\n' )
 555             {
 556                 break;
 557             }
 558         }
 559
 560         if( p != NULL )
 561         {
 562             p[4] = '\0';
 563             answer->i_body = strlen((char*)answer->p_body) + 1;
 564             answer->p_body = xrealloc( answer->p_body, answer->i_body );
 565         }
 566     }
 567
 568     if( strncmp( (char *)answer->p_body, "HTTP/1.", 7 ) )
 569     {
 570         int i_status, i_headers;
 571         char *psz_headers, *psz_new;
 572         const char *psz_status;
 573
 574         if( !strncmp( (char *)answer->p_body, "Status: ", 8 ) )
 575         {
 576             /* Apache-style */
 577             i_status = strtol( (char *)&answer->p_body[8], &psz_headers, 0 );
 578             if( *psz_headers == '\r' || *psz_headers == '\n' ) psz_headers++;
 579             if( *psz_headers == '\n' ) psz_headers++;
 580             i_headers = answer->i_body - (psz_headers - (char *)answer->p_body);
 581         }
 582         else
 583         {
 584             i_status = 200;
 585             psz_headers = (char *)answer->p_body;
 586             i_headers = answer->i_body;
 587         }
 588
 589         psz_status = httpd_ReasonFromCode( i_status );
 590         answer->i_body = sizeof("HTTP/1.0 xxx \r\n")
 591                         + strlen(psz_status) + i_headers - 1;
 592         psz_new = (char *)xmalloc( answer->i_body + 1);
 593         sprintf( psz_new, "HTTP/1.0 %03d %s\r\n", i_status, psz_status );
 594         memcpy( &psz_new[strlen(psz_new)], psz_headers, i_headers );
 595         free( answer->p_body );
 596         answer->p_body = (uint8_t *)psz_new;
 597     }
 598
 599     return VLC_SUCCESS;
 600 }
 601
 602 httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
 603                                    const char *psz_user,
 604                                    const char *psz_password,
 605                                    const vlc_acl_t *p_acl,
 606                                    httpd_handler_callback_t pf_fill,
 607                                    httpd_handler_sys_t *p_sys )
 608 {
 609     httpd_handler_t *handler = xmalloc( sizeof( httpd_handler_t ) );
 610
 611     if( ( handler->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 612                                              psz_password, p_acl )
 613         ) == NULL )
 614     {
 615         free( handler );
 616         return NULL;
 617     }
 618
 619     handler->pf_fill = pf_fill;
 620     handler->p_sys   = p_sys;
 621
 622     httpd_UrlCatch( handler->url, HTTPD_MSG_HEAD, httpd_HandlerCallBack,
 623                     (httpd_callback_sys_t*)handler );
 624     httpd_UrlCatch( handler->url, HTTPD_MSG_GET,  httpd_HandlerCallBack,
 625                     (httpd_callback_sys_t*)handler );
 626     httpd_UrlCatch( handler->url, HTTPD_MSG_POST, httpd_HandlerCallBack,
 627                     (httpd_callback_sys_t*)handler );
 628
 629     return handler;
 630 }
 631
 632 httpd_handler_sys_t *httpd_HandlerDelete( httpd_handler_t *handler )
 633 {
 634     httpd_handler_sys_t *p_sys = handler->p_sys;
 635     httpd_UrlDelete( handler->url );
 636     free( handler );
 637     return p_sys;
 638 }
 639
 640 /*****************************************************************************
 641  * High Level Functions: httpd_redirect_t
 642  *****************************************************************************/
 643 struct httpd_redirect_t
 644 {
 645     httpd_url_t *url;
 646     char        *psz_dst;
 647 };
 648
 649 static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
 650                                    httpd_client_t *cl, httpd_message_t *answer,
 651                                    const httpd_message_t *query )
 652 {
 653     httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
 654     char *p_body;
 655     (void)cl;
 656
 657     if( answer == NULL || query == NULL )
 658     {
 659         return VLC_SUCCESS;
 660     }
 661     answer->i_proto  = HTTPD_PROTO_HTTP;
 662     answer->i_version= 1;
 663     answer->i_type   = HTTPD_MSG_ANSWER;
 664     answer->i_status = 301;
 665
 666     answer->i_body = httpd_HtmlError (&p_body, 301, rdir->psz_dst);
 667     answer->p_body = (unsigned char *)p_body;
 668
 669     /* XXX check if it's ok or we need to set an absolute url */
 670     httpd_MsgAdd( answer, "Location",  "%s", rdir->psz_dst );
 671
 672     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 673
 674     return VLC_SUCCESS;
 675 }
 676
 677 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
 678                                      const char *psz_url_src )
 679 {
 680     httpd_redirect_t *rdir = xmalloc( sizeof( httpd_redirect_t ) );
 681
 682     if( !( rdir->url = httpd_UrlNewUnique( host, psz_url_src, NULL, NULL, NULL ) ) )
 683     {
 684         free( rdir );
 685         return NULL;
 686     }
 687     rdir->psz_dst = strdup( psz_url_dst );
 688
 689     /* Redirect apply for all HTTP request and RTSP DESCRIBE resquest */
 690     httpd_UrlCatch( rdir->url, HTTPD_MSG_HEAD, httpd_RedirectCallBack,
 691                     (httpd_callback_sys_t*)rdir );
 692     httpd_UrlCatch( rdir->url, HTTPD_MSG_GET, httpd_RedirectCallBack,
 693                     (httpd_callback_sys_t*)rdir );
 694     httpd_UrlCatch( rdir->url, HTTPD_MSG_POST, httpd_RedirectCallBack,
 695                     (httpd_callback_sys_t*)rdir );
 696     httpd_UrlCatch( rdir->url, HTTPD_MSG_DESCRIBE, httpd_RedirectCallBack,
 697                     (httpd_callback_sys_t*)rdir );
 698
 699     return rdir;
 700 }
 701 void httpd_RedirectDelete( httpd_redirect_t *rdir )
 702 {
 703     httpd_UrlDelete( rdir->url );
 704     free( rdir->psz_dst );
 705     free( rdir );
 706 }
 707
 708 /*****************************************************************************
 709  * High Level Funtions: httpd_stream_t
 710  *****************************************************************************/
 711 struct httpd_stream_t
 712 {
 713     vlc_mutex_t lock;
 714     httpd_url_t *url;
 715
 716     char    *psz_mime;
 717
 718     /* Header to send as first packet */
 719     uint8_t *p_header;
 720     int     i_header;
 721
 722     /* circular buffer */
 723     int         i_buffer_size;      /* buffer size, can't be reallocated smaller */
 724     uint8_t     *p_buffer;          /* buffer */
 725     int64_t     i_buffer_pos;       /* absolute position from begining */
 726     int64_t     i_buffer_last_pos;  /* a new connection will start with that */
 727 };
 728
 729 static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
 730                                  httpd_client_t *cl, httpd_message_t *answer,
 731                                  const httpd_message_t *query )
 732 {
 733     httpd_stream_t *stream = (httpd_stream_t*)p_sys;
 734
 735     if( answer == NULL || query == NULL || cl == NULL )
 736     {
 737         return VLC_SUCCESS;
 738     }
 739
 740     if( answer->i_body_offset > 0 )
 741     {
 742         int64_t i_write;
 743         int     i_pos;
 744
 745 #if 0
 746         fprintf( stderr, "httpd_StreamCallBack i_body_offset=%lld\n",
 747                  answer->i_body_offset );
 748 #endif
 749
 750         if( answer->i_body_offset >= stream->i_buffer_pos )
 751         {
 752             /* fprintf( stderr, "httpd_StreamCallBack: no data\n" ); */
 753             return VLC_EGENERIC;    /* wait, no data available */
 754         }
 755         if( answer->i_body_offset + stream->i_buffer_size <
 756             stream->i_buffer_pos )
 757         {
 758             /* this client isn't fast enough */
 759 #if 0
 760             fprintf( stderr, "fixing i_body_offset (old=%lld new=%lld)\n",
 761                      answer->i_body_offset, stream->i_buffer_last_pos );
 762 #endif
 763             answer->i_body_offset = stream->i_buffer_last_pos;
 764         }
 765
 766         i_pos   = answer->i_body_offset % stream->i_buffer_size;
 767         i_write = stream->i_buffer_pos - answer->i_body_offset;
 768         if( i_write > HTTPD_CL_BUFSIZE )
 769         {
 770             i_write = HTTPD_CL_BUFSIZE;
 771         }
 772         else if( i_write <= 0 )
 773         {
 774             return VLC_EGENERIC;    /* wait, no data available */
 775         }
 776
 777         /* Don't go past the end of the circular buffer */
 778         i_write = __MIN( i_write, stream->i_buffer_size - i_pos );
 779
 780         /* using HTTPD_MSG_ANSWER -> data available */
 781         answer->i_proto  = HTTPD_PROTO_HTTP;
 782         answer->i_version= 0;
 783         answer->i_type   = HTTPD_MSG_ANSWER;
 784
 785         answer->i_body = i_write;
 786         answer->p_body = xmalloc( i_write );
 787         memcpy( answer->p_body, &stream->p_buffer[i_pos], i_write );
 788
 789         answer->i_body_offset += i_write;
 790
 791         return VLC_SUCCESS;
 792     }
 793     else
 794     {
 795         answer->i_proto  = HTTPD_PROTO_HTTP;
 796         answer->i_version= 0;
 797         answer->i_type   = HTTPD_MSG_ANSWER;
 798
 799         answer->i_status = 200;
 800
 801         if( query->i_type != HTTPD_MSG_HEAD )
 802         {
 803             httpd_ClientModeStream( cl );
 804             vlc_mutex_lock( &stream->lock );
 805             /* Send the header */
 806             if( stream->i_header > 0 )
 807             {
 808                 answer->i_body = stream->i_header;
 809                 answer->p_body = xmalloc( stream->i_header );
 810                 memcpy( answer->p_body, stream->p_header, stream->i_header );
 811             }
 812             answer->i_body_offset = stream->i_buffer_last_pos;
 813             vlc_mutex_unlock( &stream->lock );
 814         }
 815         else
 816         {
 817             httpd_MsgAdd( answer, "Content-Length", "%d", 0 );
 818             answer->i_body_offset = 0;
 819         }
 820
 821         if( !strcmp( stream->psz_mime, "video/x-ms-asf-stream" ) )
 822         {
 823             bool b_xplaystream = false;
 824             int i;
 825
 826             httpd_MsgAdd( answer, "Content-type", "%s",
 827                           "application/octet-stream" );
 828             httpd_MsgAdd( answer, "Server", "Cougar 4.1.0.3921" );
 829             httpd_MsgAdd( answer, "Pragma", "no-cache" );
 830             httpd_MsgAdd( answer, "Pragma", "client-id=%lu",
 831                           vlc_mrand48()&0x7fff );
 832             httpd_MsgAdd( answer, "Pragma", "features=\"broadcast\"" );
 833
 834             /* Check if there is a xPlayStrm=1 */
 835             for( i = 0; i < query->i_name; i++ )
 836             {
 837                 if( !strcasecmp( query->name[i],  "Pragma" ) &&
 838                     strstr( query->value[i], "xPlayStrm=1" ) )
 839                 {
 840                     b_xplaystream = true;
 841                 }
 842             }
 843
 844             if( !b_xplaystream )
 845             {
 846                 answer->i_body_offset = 0;
 847             }
 848         }
 849         else
 850         {
 851             httpd_MsgAdd( answer, "Content-type",  "%s", stream->psz_mime );
 852         }
 853         httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 854         return VLC_SUCCESS;
 855     }
 856 }
 857
 858 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
 859                                  const char *psz_url, const char *psz_mime,
 860                                  const char *psz_user, const char *psz_password,
 861                                  const vlc_acl_t *p_acl )
 862 {
 863     httpd_stream_t *stream = xmalloc( sizeof( httpd_stream_t ) );
 864
 865     if( ( stream->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 866                                             psz_password, p_acl )
 867         ) == NULL )
 868     {
 869         free( stream );
 870         return NULL;
 871     }
 872     vlc_mutex_init( &stream->lock );
 873     if( psz_mime && *psz_mime )
 874     {
 875         stream->psz_mime = strdup( psz_mime );
 876     }
 877     else
 878     {
 879         stream->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 880     }
 881     stream->i_header = 0;
 882     stream->p_header = NULL;
 883     stream->i_buffer_size = 5000000;    /* 5 Mo per stream */
 884     stream->p_buffer = xmalloc( stream->i_buffer_size );
 885     /* We set to 1 to make life simpler
 886      * (this way i_body_offset can never be 0) */
 887     stream->i_buffer_pos = 1;
 888     stream->i_buffer_last_pos = 1;
 889
 890     httpd_UrlCatch( stream->url, HTTPD_MSG_HEAD, httpd_StreamCallBack,
 891                     (httpd_callback_sys_t*)stream );
 892     httpd_UrlCatch( stream->url, HTTPD_MSG_GET, httpd_StreamCallBack,
 893                     (httpd_callback_sys_t*)stream );
 894     httpd_UrlCatch( stream->url, HTTPD_MSG_POST, httpd_StreamCallBack,
 895                     (httpd_callback_sys_t*)stream );
 896
 897     return stream;
 898 }
 899
 900 int httpd_StreamHeader( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 901 {
 902     vlc_mutex_lock( &stream->lock );
 903     free( stream->p_header );
 904     stream->p_header = NULL;
 905
 906     stream->i_header = i_data;
 907     if( i_data > 0 )
 908     {
 909         stream->p_header = xmalloc( i_data );
 910         memcpy( stream->p_header, p_data, i_data );
 911     }
 912     vlc_mutex_unlock( &stream->lock );
 913
 914     return VLC_SUCCESS;
 915 }
 916
 917 int httpd_StreamSend( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 918 {
 919     int i_count;
 920     int i_pos;
 921
 922     if( i_data < 0 || p_data == NULL )
 923     {
 924         return VLC_SUCCESS;
 925     }
 926     vlc_mutex_lock( &stream->lock );
 927
 928     /* save this pointer (to be used by new connection) */
 929     stream->i_buffer_last_pos = stream->i_buffer_pos;
 930
 931     i_pos = stream->i_buffer_pos % stream->i_buffer_size;
 932     i_count = i_data;
 933     while( i_count > 0)
 934     {
 935         int i_copy;
 936
 937         i_copy = __MIN( i_count, stream->i_buffer_size - i_pos );
 938
 939         /* Ok, we can't go past the end of our buffer */
 940         memcpy( &stream->p_buffer[i_pos], p_data, i_copy );
 941
 942         i_pos = ( i_pos + i_copy ) % stream->i_buffer_size;
 943         i_count -= i_copy;
 944         p_data  += i_copy;
 945     }
 946
 947     stream->i_buffer_pos += i_data;
 948
 949     vlc_mutex_unlock( &stream->lock );
 950     return VLC_SUCCESS;
 951 }
 952
 953 void httpd_StreamDelete( httpd_stream_t *stream )
 954 {
 955     httpd_UrlDelete( stream->url );
 956     vlc_mutex_destroy( &stream->lock );
 957     free( stream->psz_mime );
 958     free( stream->p_header );
 959     free( stream->p_buffer );
 960     free( stream );
 961 }
 962
 963 /*****************************************************************************
 964  * Low level
 965  *****************************************************************************/
 966 static void* httpd_HostThread( void * );
 967
 968 /* create a new host */
 969 httpd_host_t *httpd_HostNew( vlc_object_t *p_this, const char *psz_host,
 970                              int i_port )
 971 {
 972     return httpd_TLSHostNew( p_this, psz_host, i_port, NULL, NULL, NULL, NULL
 973                            );
 974 }
 975
 976 static const char psz_object_type[] = "http server";
 977 static vlc_mutex_t httpd_mutex = VLC_STATIC_MUTEX;
 978
 979 httpd_host_t *httpd_TLSHostNew( vlc_object_t *p_this, const char *psz_hostname,
 980                                 int i_port,
 981                                 const char *psz_cert, const char *psz_key,
 982                                 const char *psz_ca, const char *psz_crl )
 983 {
 984     httpd_t      *httpd;
 985     httpd_host_t *host;
 986     tls_server_t *p_tls;
 987     char *psz_host;
 988     vlc_value_t  ptrval;
 989     int i;
 990
 991     if( psz_hostname == NULL )
 992         psz_hostname = "";
 993
 994     psz_host = strdup( psz_hostname );
 995     if( psz_host == NULL )
 996         return NULL;
 997
 998     /* to be sure to avoid multiple creation */
 999     vlc_mutex_lock( &httpd_mutex );
1000     httpd = libvlc_priv (p_this->p_libvlc)->p_httpd;
1001
1002     if( httpd == NULL )
1003     {
1004         msg_Info( p_this, "creating httpd" );
1005         httpd = (httpd_t *)vlc_custom_create( p_this, sizeof (*httpd),
1006                                               VLC_OBJECT_GENERIC,
1007                                               psz_object_type );
1008         if( httpd == NULL )
1009         {
1010             vlc_mutex_unlock( &httpd_mutex );
1011             free( psz_host );
1012             return NULL;
1013         }
1014
1015         httpd->i_host = 0;
1016         httpd->host   = NULL;
1017
1018         ptrval.p_address = httpd;
1019         libvlc_priv (p_this->p_libvlc)->p_httpd = httpd;
1020         vlc_object_attach( httpd, p_this->p_libvlc );
1021     }
1022
1023     /* verify if it already exist */
1024     for( i = httpd->i_host - 1; i >= 0; i-- )
1025     {
1026         host = httpd->host[i];
1027
1028         /* cannot mix TLS and non-TLS hosts */
1029         if( ( ( httpd->host[i]->p_tls != NULL ) != ( psz_cert != NULL ) )
1030          || ( host->i_port != i_port )
1031          || strcmp( host->psz_hostname, psz_hostname ) )
1032             continue;
1033
1034         /* Increase existing matching host reference count.
1035          * The reference count is written under both the global httpd and the
1036          * host lock. It is read with either or both locks held. The global
1037          * lock is always acquired first. */
1038         vlc_mutex_lock( &host->lock );
1039         host->i_ref++;
1040         vlc_mutex_unlock( &host->lock );
1041
1042         vlc_mutex_unlock( &httpd_mutex );
1043         return host;
1044     }
1045
1046     host = NULL;
1047
1048     /* determine TLS configuration */
1049     if ( psz_cert != NULL )
1050     {
1051         p_tls = tls_ServerCreate( p_this, psz_cert, psz_key );
1052         if ( p_tls == NULL )
1053         {
1054             msg_Err( p_this, "TLS initialization error" );
1055             goto error;
1056         }
1057
1058         if ( ( psz_ca != NULL) && tls_ServerAddCA( p_tls, psz_ca ) )
1059         {
1060             msg_Err( p_this, "TLS CA error" );
1061             goto error;
1062         }
1063
1064         if ( ( psz_crl != NULL) && tls_ServerAddCRL( p_tls, psz_crl ) )
1065         {
1066             msg_Err( p_this, "TLS CRL error" );
1067             goto error;
1068         }
1069     }
1070     else
1071         p_tls = NULL;
1072
1073     /* create the new host */
1074     host = (httpd_host_t *)vlc_custom_create( p_this, sizeof (*host),
1075                                               VLC_OBJECT_GENERIC,
1076                                               psz_object_type );
1077     if (host == NULL)
1078         goto error;
1079
1080     host->httpd = httpd;
1081     vlc_mutex_init( &host->lock );
1082     vlc_cond_init( &host->wait );
1083     host->i_ref = 1;
1084
1085     vlc_object_attach( host, p_this );
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     if( vlc_object_waitpipe( VLC_OBJECT( host ) ) == -1 )
1096     {
1097         msg_Err( host, "signaling pipe error: %m" );
1098         goto error;
1099     }
1100
1101     host->i_port = i_port;
1102     host->psz_hostname = psz_host;
1103
1104     host->i_url     = 0;
1105     host->url       = NULL;
1106     host->i_client  = 0;
1107     host->client    = NULL;
1108
1109     host->p_tls = p_tls;
1110
1111     /* create the thread */
1112     if( vlc_clone( &host->thread, httpd_HostThread, host,
1113                    VLC_THREAD_PRIORITY_LOW ) )
1114     {
1115         msg_Err( p_this, "cannot spawn http host thread" );
1116         goto error;
1117     }
1118
1119     /* now add it to httpd */
1120     TAB_APPEND( httpd->i_host, httpd->host, host );
1121     vlc_mutex_unlock( &httpd_mutex );
1122
1123     return host;
1124
1125 error:
1126     free( psz_host );
1127     if( httpd->i_host <= 0 )
1128     {
1129         libvlc_priv (httpd->p_libvlc)->p_httpd = NULL;
1130         vlc_object_release( httpd );
1131     }
1132     vlc_mutex_unlock( &httpd_mutex );
1133
1134     if( host != NULL )
1135     {
1136         net_ListenClose( host->fds );
1137         vlc_cond_destroy( &host->wait );
1138         vlc_mutex_destroy( &host->lock );
1139         vlc_object_release( host );
1140     }
1141
1142     if( p_tls != NULL )
1143         tls_ServerDelete( p_tls );
1144
1145     return NULL;
1146 }
1147
1148 /* delete a host */
1149 void httpd_HostDelete( httpd_host_t *host )
1150 {
1151     httpd_t *httpd = host->httpd;
1152     int i;
1153     bool delete = false;
1154
1155     vlc_mutex_lock( &httpd_mutex );
1156
1157     vlc_mutex_lock( &host->lock );
1158     host->i_ref--;
1159     if( host->i_ref == 0 )
1160     {
1161         vlc_cond_signal( &host->wait );
1162         delete = true;
1163     }
1164     vlc_mutex_unlock( &host->lock );
1165     if( !delete )
1166     {
1167         /* still used */
1168         vlc_mutex_unlock( &httpd_mutex );
1169         msg_Dbg( host, "httpd_HostDelete: host still in use" );
1170         return;
1171     }
1172     TAB_REMOVE( httpd->i_host, httpd->host, host );
1173
1174     vlc_object_kill( host );
1175     vlc_join( host->thread, NULL );
1176
1177     msg_Dbg( host, "HTTP host removed" );
1178
1179     for( i = 0; i < host->i_url; i++ )
1180     {
1181         msg_Err( host, "url still registered: %s", host->url[i]->psz_url );
1182     }
1183     for( i = 0; i < host->i_client; i++ )
1184     {
1185         httpd_client_t *cl = host->client[i];
1186         msg_Warn( host, "client still connected" );
1187         httpd_ClientClean( cl );
1188         TAB_REMOVE( host->i_client, host->client, cl );
1189         free( cl );
1190         i--;
1191         /* TODO */
1192     }
1193
1194     if( host->p_tls != NULL)
1195         tls_ServerDelete( host->p_tls );
1196
1197     net_ListenClose( host->fds );
1198     free( host->psz_hostname );
1199
1200     vlc_cond_destroy( &host->wait );
1201     vlc_mutex_destroy( &host->lock );
1202     vlc_object_release( host );
1203
1204     if( httpd->i_host <= 0 )
1205     {
1206         msg_Dbg( httpd, "no hosts left, stopping httpd" );
1207
1208         libvlc_priv (httpd->p_libvlc)->p_httpd = NULL;
1209         vlc_object_release( httpd );
1210     }
1211     vlc_mutex_unlock( &httpd_mutex );
1212 }
1213
1214 /* register a new url */
1215 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, const char *psz_url,
1216                                          const char *psz_user, const char *psz_password,
1217                                          const vlc_acl_t *p_acl, bool b_check )
1218 {
1219     httpd_url_t *url;
1220     int         i;
1221
1222     assert( psz_url != NULL );
1223
1224     vlc_mutex_lock( &host->lock );
1225     if( b_check )
1226     {
1227         for( i = 0; i < host->i_url; i++ )
1228         {
1229             if( !strcmp( psz_url, host->url[i]->psz_url ) )
1230             {
1231                 msg_Warn( host->httpd,
1232                           "cannot add '%s' (url already defined)", psz_url );
1233                 vlc_mutex_unlock( &host->lock );
1234                 return NULL;
1235             }
1236         }
1237     }
1238
1239     url = xmalloc( sizeof( httpd_url_t ) );
1240     url->host = host;
1241
1242     vlc_mutex_init( &url->lock );
1243     url->psz_url = strdup( psz_url );
1244     url->psz_user = strdup( psz_user ? psz_user : "" );
1245     url->psz_password = strdup( psz_password ? psz_password : "" );
1246     url->p_acl = ACL_Duplicate( host, p_acl );
1247     for( i = 0; i < HTTPD_MSG_MAX; i++ )
1248     {
1249         url->catch[i].cb = NULL;
1250         url->catch[i].p_sys = NULL;
1251     }
1252
1253     TAB_APPEND( host->i_url, host->url, url );
1254     vlc_cond_signal( &host->wait );
1255     vlc_mutex_unlock( &host->lock );
1256
1257     return url;
1258 }
1259
1260 httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
1261                            const char *psz_user, const char *psz_password,
1262                            const vlc_acl_t *p_acl )
1263 {
1264     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1265                                 psz_password, p_acl, false );
1266 }
1267
1268 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
1269                                  const char *psz_user, const char *psz_password,
1270                                  const vlc_acl_t *p_acl )
1271 {
1272     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1273                                 psz_password, p_acl, true );
1274 }
1275
1276 /* register callback on a url */
1277 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1278                     httpd_callback_sys_t *p_sys )
1279 {
1280     vlc_mutex_lock( &url->lock );
1281     url->catch[i_msg].cb   = cb;
1282     url->catch[i_msg].p_sys= p_sys;
1283     vlc_mutex_unlock( &url->lock );
1284
1285     return VLC_SUCCESS;
1286 }
1287
1288 /* delete an url */
1289 void httpd_UrlDelete( httpd_url_t *url )
1290 {
1291     httpd_host_t *host = url->host;
1292     int          i;
1293
1294     vlc_mutex_lock( &host->lock );
1295     TAB_REMOVE( host->i_url, host->url, url );
1296
1297     vlc_mutex_destroy( &url->lock );
1298     free( url->psz_url );
1299     free( url->psz_user );
1300     free( url->psz_password );
1301     ACL_Destroy( url->p_acl );
1302
1303     for( i = 0; i < host->i_client; i++ )
1304     {
1305         httpd_client_t *client = host->client[i];
1306
1307         if( client->url == url )
1308         {
1309             /* TODO complete it */
1310             msg_Warn( host, "force closing connections" );
1311             httpd_ClientClean( client );
1312             TAB_REMOVE( host->i_client, host->client, client );
1313             free( client );
1314             i--;
1315         }
1316     }
1317     free( url );
1318     vlc_mutex_unlock( &host->lock );
1319 }
1320
1321 static void httpd_MsgInit( httpd_message_t *msg )
1322 {
1323     msg->cl         = NULL;
1324     msg->i_type     = HTTPD_MSG_NONE;
1325     msg->i_proto    = HTTPD_PROTO_NONE;
1326     msg->i_version  = -1; /* FIXME */
1327
1328     msg->i_status   = 0;
1329
1330     msg->psz_url    = NULL;
1331     msg->psz_args   = NULL;
1332
1333     msg->i_channel  = -1;
1334
1335     msg->i_name     = 0;
1336     msg->name       = NULL;
1337     msg->i_value    = 0;
1338     msg->value      = NULL;
1339
1340     msg->i_body_offset = 0;
1341     msg->i_body        = 0;
1342     msg->p_body        = NULL;
1343 }
1344
1345 static void httpd_MsgClean( httpd_message_t *msg )
1346 {
1347     int i;
1348
1349     free( msg->psz_url );
1350     free( msg->psz_args );
1351     for( i = 0; i < msg->i_name; i++ )
1352     {
1353         free( msg->name[i] );
1354         free( msg->value[i] );
1355     }
1356     free( msg->name );
1357     free( msg->value );
1358     free( msg->p_body );
1359     httpd_MsgInit( msg );
1360 }
1361
1362 const char *httpd_MsgGet( const httpd_message_t *msg, const char *name )
1363 {
1364     int i;
1365
1366     for( i = 0; i < msg->i_name; i++ )
1367     {
1368         if( !strcasecmp( msg->name[i], name ))
1369         {
1370             return msg->value[i];
1371         }
1372     }
1373     return NULL;
1374 }
1375
1376 void httpd_MsgAdd( httpd_message_t *msg, const char *name, const char *psz_value, ... )
1377 {
1378     va_list args;
1379     char *value = NULL;
1380
1381     va_start( args, psz_value );
1382     if( vasprintf( &value, psz_value, args ) == -1 )
1383         value = NULL;
1384     va_end( args );
1385
1386     if( value == NULL )
1387         return;
1388
1389     name = strdup( name );
1390     if( name == NULL )
1391     {
1392         free( value );
1393         return;
1394     }
1395
1396     TAB_APPEND( msg->i_name,  msg->name,  (char*)name );
1397     TAB_APPEND( msg->i_value, msg->value, value );
1398 }
1399
1400 static void httpd_ClientInit( httpd_client_t *cl, mtime_t now )
1401 {
1402     cl->i_state = HTTPD_CLIENT_RECEIVING;
1403     cl->i_activity_date = now;
1404     cl->i_activity_timeout = INT64_C(10000000);
1405     cl->i_buffer_size = HTTPD_CL_BUFSIZE;
1406     cl->i_buffer = 0;
1407     cl->p_buffer = xmalloc( cl->i_buffer_size );
1408     cl->i_mode   = HTTPD_CLIENT_FILE;
1409     cl->b_read_waiting = false;
1410
1411     httpd_MsgInit( &cl->query );
1412     httpd_MsgInit( &cl->answer );
1413 }
1414
1415 void httpd_ClientModeStream( httpd_client_t *cl )
1416 {
1417     cl->i_mode   = HTTPD_CLIENT_STREAM;
1418 }
1419
1420 void httpd_ClientModeBidir( httpd_client_t *cl )
1421 {
1422     cl->i_mode   = HTTPD_CLIENT_BIDIR;
1423 }
1424
1425 char* httpd_ClientIP( const httpd_client_t *cl, char *psz_ip )
1426 {
1427     return net_GetPeerAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1428 }
1429
1430 char* httpd_ServerIP( const httpd_client_t *cl, char *psz_ip )
1431 {
1432     return net_GetSockAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
1433 }
1434
1435 static void httpd_ClientClean( httpd_client_t *cl )
1436 {
1437     if( cl->fd >= 0 )
1438     {
1439         if( cl->p_tls != NULL )
1440             tls_ServerSessionClose( cl->p_tls );
1441         net_Close( cl->fd );
1442         cl->fd = -1;
1443     }
1444
1445     httpd_MsgClean( &cl->answer );
1446     httpd_MsgClean( &cl->query );
1447
1448     free( cl->p_buffer );
1449     cl->p_buffer = NULL;
1450 }
1451
1452 static httpd_client_t *httpd_ClientNew( int fd, tls_session_t *p_tls, mtime_t now )
1453 {
1454     httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1455
1456     if( !cl ) return NULL;
1457
1458     cl->i_ref   = 0;
1459     cl->fd      = fd;
1460     cl->url     = NULL;
1461     cl->p_tls = p_tls;
1462
1463     httpd_ClientInit( cl, now );
1464
1465     return cl;
1466 }
1467
1468 static
1469 ssize_t httpd_NetRecv (httpd_client_t *cl, uint8_t *p, size_t i_len)
1470 {
1471     tls_session_t *p_tls;
1472     ssize_t val;
1473
1474     p_tls = cl->p_tls;
1475     do
1476         val = p_tls ? tls_Recv (p_tls, p, i_len)
1477                     : recv (cl->fd, p, i_len, 0);
1478     while (val == -1 && errno == EINTR);
1479     return val;
1480 }
1481
1482 static
1483 ssize_t httpd_NetSend (httpd_client_t *cl, const uint8_t *p, size_t i_len)
1484 {
1485     tls_session_t *p_tls;
1486     ssize_t val;
1487
1488     p_tls = cl->p_tls;
1489     do
1490         val = p_tls ? tls_Send( p_tls, p, i_len )
1491                     : send (cl->fd, p, i_len, 0);
1492     while (val == -1 && errno == EINTR);
1493     return val;
1494 }
1495
1496
1497 static const struct
1498 {
1499     const char name[16];
1500     int  i_type;
1501     int  i_proto;
1502 }
1503 msg_type[] =
1504 {
1505     { "OPTIONS",       HTTPD_MSG_OPTIONS,      HTTPD_PROTO_RTSP },
1506     { "DESCRIBE",      HTTPD_MSG_DESCRIBE,     HTTPD_PROTO_RTSP },
1507     { "SETUP",         HTTPD_MSG_SETUP,        HTTPD_PROTO_RTSP },
1508     { "PLAY",          HTTPD_MSG_PLAY,         HTTPD_PROTO_RTSP },
1509     { "PAUSE",         HTTPD_MSG_PAUSE,        HTTPD_PROTO_RTSP },
1510     { "GET_PARAMETER", HTTPD_MSG_GETPARAMETER, HTTPD_PROTO_RTSP },
1511     { "TEARDOWN",      HTTPD_MSG_TEARDOWN,     HTTPD_PROTO_RTSP },
1512     { "GET",           HTTPD_MSG_GET,          HTTPD_PROTO_HTTP },
1513     { "HEAD",          HTTPD_MSG_HEAD,         HTTPD_PROTO_HTTP },
1514     { "POST",          HTTPD_MSG_POST,         HTTPD_PROTO_HTTP },
1515     { "",              HTTPD_MSG_NONE,         HTTPD_PROTO_NONE }
1516 };
1517
1518
1519 static void httpd_ClientRecv( httpd_client_t *cl )
1520 {
1521     int i_len;
1522
1523     /* ignore leading whites */
1524     if( ( cl->query.i_proto == HTTPD_PROTO_NONE ) &&
1525         ( cl->i_buffer == 0 ) )
1526     {
1527         unsigned char c;
1528
1529         i_len = httpd_NetRecv( cl, &c, 1 );
1530
1531         if( ( i_len > 0 ) && ( strchr( "\r\n\t ", c ) == NULL ) )
1532         {
1533             cl->p_buffer[0] = c;
1534             cl->i_buffer++;
1535         }
1536     }
1537     else
1538     if( cl->query.i_proto == HTTPD_PROTO_NONE )
1539     {
1540         /* enough to see if it's Interleaved RTP over RTSP or RTSP/HTTP */
1541         i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
1542                                7 - cl->i_buffer );
1543         if( i_len > 0 )
1544         {
1545             cl->i_buffer += i_len;
1546         }
1547
1548         if( ( cl->i_buffer >= 4 ) && ( cl->p_buffer[0] == '$' ) )
1549         {
1550             /* Interleaved RTP over RTSP */
1551             cl->query.i_proto = HTTPD_PROTO_RTSP;
1552             cl->query.i_type  = HTTPD_MSG_CHANNEL;
1553             cl->query.i_channel = cl->p_buffer[1];
1554             cl->query.i_body  = (cl->p_buffer[2] << 8)|cl->p_buffer[3];
1555             cl->query.p_body  = xmalloc( cl->query.i_body );
1556             cl->i_buffer      -= 4;
1557             memcpy( cl->query.p_body, cl->p_buffer + 4, cl->i_buffer );
1558         }
1559         else
1560         /* The smallest legal request is 7 bytes ("GET /\r\n"),
1561          * this is the maximum we can ask at this point. */
1562         if( cl->i_buffer >= 7 )
1563         {
1564             if( !memcmp( cl->p_buffer, "HTTP/1.", 7 ) )
1565             {
1566                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1567                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1568             }
1569             else if( !memcmp( cl->p_buffer, "RTSP/1.", 7 ) )
1570             {
1571                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1572                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1573             }
1574             else
1575             {
1576                 /* We need the full request line to determine the protocol. */
1577                 cl->query.i_proto = HTTPD_PROTO_HTTP0;
1578                 cl->query.i_type  = HTTPD_MSG_NONE;
1579             }
1580         }
1581     }
1582     else if( cl->query.i_body > 0 )
1583     {
1584         /* we are reading the body of a request or a channel */
1585         i_len = httpd_NetRecv( cl, &cl->query.p_body[cl->i_buffer],
1586                                cl->query.i_body - cl->i_buffer );
1587         if( i_len > 0 )
1588         {
1589             cl->i_buffer += i_len;
1590         }
1591         if( cl->i_buffer >= cl->query.i_body )
1592         {
1593             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1594         }
1595     }
1596     else
1597     {
1598         /* we are reading a header -> char by char */
1599         for( ;; )
1600         {
1601             if( cl->i_buffer == cl->i_buffer_size )
1602             {
1603                 uint8_t *newbuf = realloc( cl->p_buffer, cl->i_buffer_size + 1024 );
1604                 if( newbuf == NULL )
1605                 {
1606                     i_len = 0;
1607                     break;
1608                 }
1609
1610                 cl->p_buffer = newbuf;
1611                 cl->i_buffer_size += 1024;
1612             }
1613
1614             i_len = httpd_NetRecv (cl, &cl->p_buffer[cl->i_buffer], 1 );
1615             if( i_len <= 0 )
1616             {
1617                 break;
1618             }
1619             cl->i_buffer++;
1620
1621             if( ( cl->query.i_proto == HTTPD_PROTO_HTTP0 )
1622              && ( cl->p_buffer[cl->i_buffer - 1] == '\n' ) )
1623             {
1624                 /* Request line is now complete */
1625                 const char *p = memchr( cl->p_buffer, ' ', cl->i_buffer );
1626                 size_t len;
1627
1628                 assert( cl->query.i_type == HTTPD_MSG_NONE );
1629
1630                 if( p == NULL ) /* no URI: evil guy */
1631                 {
1632                     i_len = 0; /* drop connection */
1633                     break;
1634                 }
1635
1636                 do
1637                     p++; /* skips extra spaces */
1638                 while( *p == ' ' );
1639
1640                 p = memchr( p, ' ', ((char *)cl->p_buffer) + cl->i_buffer - p );
1641                 if( p == NULL ) /* no explicit protocol: HTTP/0.9 */
1642                 {
1643                     i_len = 0; /* not supported currently -> drop */
1644                     break;
1645                 }
1646
1647                 do
1648                     p++; /* skips extra spaces ever again */
1649                 while( *p == ' ' );
1650
1651                 len = ((char *)cl->p_buffer) + cl->i_buffer - p;
1652                 if( len < 7 ) /* foreign protocol */
1653                     i_len = 0; /* I don't understand -> drop */
1654                 else
1655                 if( memcmp( p, "HTTP/1.", 7 ) == 0 )
1656                 {
1657                     cl->query.i_proto = HTTPD_PROTO_HTTP;
1658                     cl->query.i_version = atoi( p + 7 );
1659                 }
1660                 else
1661                 if( memcmp( p, "RTSP/1.", 7 ) == 0 )
1662                 {
1663                     cl->query.i_proto = HTTPD_PROTO_RTSP;
1664                     cl->query.i_version = atoi( p + 7 );
1665                 }
1666                 else
1667                 if( memcmp( p, "HTTP/", 5 ) == 0 )
1668                 {
1669                     const uint8_t sorry[] =
1670                        "HTTP/1.1 505 Unknown HTTP version\r\n\r\n";
1671                     httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1672                     i_len = 0; /* drop */
1673                 }
1674                 else
1675                 if( memcmp( p, "RTSP/", 5 ) == 0 )
1676                 {
1677                     const uint8_t sorry[] =
1678                         "RTSP/1.0 505 Unknown RTSP version\r\n\r\n";
1679                     httpd_NetSend( cl, sorry, sizeof( sorry ) - 1 );
1680                     i_len = 0; /* drop */
1681                 }
1682                 else /* yet another foreign protocol */
1683                     i_len = 0;
1684
1685                 if( i_len == 0 )
1686                     break;
1687             }
1688
1689             if( ( cl->i_buffer >= 2 && !memcmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1690                 ( cl->i_buffer >= 4 && !memcmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1691             {
1692                 char *p;
1693
1694                 /* we have finished the header so parse it and set i_body */
1695                 cl->p_buffer[cl->i_buffer] = '\0';
1696
1697                 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1698                 {
1699                     /* FIXME:
1700                      * assume strlen( "HTTP/1.x" ) = 8
1701                      */
1702                     cl->query.i_status =
1703                         strtol( (char *)&cl->p_buffer[8],
1704                                 &p, 0 );
1705                     while( *p == ' ' )
1706                         p++;
1707                 }
1708                 else
1709                 {
1710                     unsigned i;
1711
1712                     p = NULL;
1713                     cl->query.i_type = HTTPD_MSG_NONE;
1714
1715                     /*fprintf( stderr, "received new request=%s\n", cl->p_buffer);*/
1716
1717                     for( i = 0; msg_type[i].name[0]; i++ )
1718                     {
1719                         if( !strncmp( (char *)cl->p_buffer, msg_type[i].name,
1720                                       strlen( msg_type[i].name ) ) )
1721                         {
1722                             p = (char *)&cl->p_buffer[strlen(msg_type[i].name) + 1 ];
1723                             cl->query.i_type = msg_type[i].i_type;
1724                             if( cl->query.i_proto != msg_type[i].i_proto )
1725                             {
1726                                 p = NULL;
1727                                 cl->query.i_proto = HTTPD_PROTO_NONE;
1728                                 cl->query.i_type = HTTPD_MSG_NONE;
1729                             }
1730                             break;
1731                         }
1732                     }
1733                     if( p == NULL )
1734                     {
1735                         if( strstr( (char *)cl->p_buffer, "HTTP/1." ) )
1736                         {
1737                             cl->query.i_proto = HTTPD_PROTO_HTTP;
1738                         }
1739                         else if( strstr( (char *)cl->p_buffer, "RTSP/1." ) )
1740                         {
1741                             cl->query.i_proto = HTTPD_PROTO_RTSP;
1742                         }
1743                     }
1744                     else
1745                     {
1746                         char *p2;
1747                         char *p3;
1748
1749                         while( *p == ' ' )
1750                         {
1751                             p++;
1752                         }
1753                         p2 = strchr( p, ' ' );
1754                         if( p2 )
1755                         {
1756                             *p2++ = '\0';
1757                         }
1758                         if( !strncasecmp( p, ( cl->query.i_proto
1759                                    == HTTPD_PROTO_HTTP ) ? "http" : "rtsp", 4 )
1760                          && p[4 + !!strchr( "sS", p[4] )] == ':' )
1761                         {   /* Skip hier-part of URL (if present) */
1762                             p = strchr( p, ':' ) + 1; /* skip URI scheme */
1763                             if( !strncmp( p, "//", 2 ) ) /* skip authority */
1764                             {   /* see RFC3986 §3.2 */
1765                                 p += 2;
1766                                 while( *p && !strchr( "/?#", *p ) ) p++;
1767                             }
1768                         }
1769                         cl->query.psz_url = strdup( p );
1770                         if( ( p3 = strchr( cl->query.psz_url, '?' ) )  )
1771                         {
1772                             *p3++ = '\0';
1773                             cl->query.psz_args = (uint8_t *)strdup( p3 );
1774                         }
1775                         p = p2;
1776                     }
1777                 }
1778                 if( p )
1779                 {
1780                     p = strchr( p, '\n' );
1781                 }
1782                 if( p )
1783                 {
1784                     while( *p == '\n' || *p == '\r' )
1785                     {
1786                         p++;
1787                     }
1788                     while( p && *p != '\0' )
1789                     {
1790                         char *line = p;
1791                         char *eol = p = strchr( p, '\n' );
1792                         char *colon;
1793
1794                         while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1795                         {
1796                             *eol-- = '\0';
1797                         }
1798
1799                         if( ( colon = strchr( line, ':' ) ) )
1800                         {
1801                             char *name;
1802                             char *value;
1803
1804                             *colon++ = '\0';
1805                             while( *colon == ' ' )
1806                             {
1807                                 colon++;
1808                             }
1809                             name = strdup( line );
1810                             value = strdup( colon );
1811
1812                             TAB_APPEND( cl->query.i_name, cl->query.name, name );
1813                             TAB_APPEND( cl->query.i_value,cl->query.value,value);
1814
1815                             if( !strcasecmp( name, "Content-Length" ) )
1816                             {
1817                                 cl->query.i_body = atol( value );
1818                             }
1819                         }
1820
1821                         if( p )
1822                         {
1823                             p++;
1824                             while( *p == '\n' || *p == '\r' )
1825                             {
1826                                 p++;
1827                             }
1828                         }
1829                     }
1830                 }
1831                 if( cl->query.i_body > 0 )
1832                 {
1833                     /* TODO Mhh, handle the case client will only send a
1834                      * request and close the connection
1835                      * to mark and of body (probably only RTSP) */
1836                     cl->query.p_body = xmalloc( cl->query.i_body );
1837                     cl->i_buffer = 0;
1838                 }
1839                 else
1840                 {
1841                     cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1842                 }
1843             }
1844         }
1845     }
1846
1847     /* check if the client is to be set to dead */
1848 #if defined( WIN32 ) || defined( UNDER_CE )
1849     if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1850 #else
1851     if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1852 #endif
1853     {
1854         if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1855         {
1856             /* connection closed -> end of data */
1857             if( cl->query.i_body > 0 )
1858             {
1859                 cl->query.i_body = cl->i_buffer;
1860             }
1861             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1862         }
1863         else
1864         {
1865             cl->i_state = HTTPD_CLIENT_DEAD;
1866         }
1867     }
1868
1869     /* XXX: for QT I have to disable timeout. Try to find why */
1870     if( cl->query.i_proto == HTTPD_PROTO_RTSP )
1871         cl->i_activity_timeout = 0;
1872
1873 #if 0 /* Debugging only */
1874     if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1875     {
1876         int i;
1877
1878         fprintf( stderr, "received new request\n" );
1879         fprintf( stderr, "  - proto=%s\n",
1880                  cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1881         fprintf( stderr, "  - version=%d\n", cl->query.i_version );
1882         fprintf( stderr, "  - msg=%d\n", cl->query.i_type );
1883         if( cl->query.i_type == HTTPD_MSG_ANSWER )
1884         {
1885             fprintf( stderr, "  - answer=%d '%s'\n", cl->query.i_status,
1886                      cl->query.psz_status );
1887         }
1888         else if( cl->query.i_type != HTTPD_MSG_NONE )
1889         {
1890             fprintf( stderr, "  - url=%s\n", cl->query.psz_url );
1891         }
1892         for( i = 0; i < cl->query.i_name; i++ )
1893         {
1894             fprintf( stderr, "  - option name='%s' value='%s'\n",
1895                      cl->query.name[i], cl->query.value[i] );
1896         }
1897     }
1898 #endif
1899 }
1900
1901 static void httpd_ClientSend( httpd_client_t *cl )
1902 {
1903     int i;
1904     int i_len;
1905
1906     if( cl->i_buffer < 0 )
1907     {
1908         /* We need to create the header */
1909         int i_size = 0;
1910         char *p;
1911         const char *psz_status = httpd_ReasonFromCode( cl->answer.i_status );
1912
1913         i_size = strlen( "HTTP/1.") + 10 + 10 + strlen( psz_status ) + 5;
1914         for( i = 0; i < cl->answer.i_name; i++ )
1915         {
1916             i_size += strlen( cl->answer.name[i] ) + 2 +
1917                       strlen( cl->answer.value[i] ) + 2;
1918         }
1919
1920         if( cl->i_buffer_size < i_size )
1921         {
1922             cl->i_buffer_size = i_size;
1923             free( cl->p_buffer );
1924             cl->p_buffer = xmalloc( i_size );
1925         }
1926         p = (char *)cl->p_buffer;
1927
1928         p += sprintf( p, "%s.%u %d %s\r\n",
1929                       cl->answer.i_proto ==  HTTPD_PROTO_HTTP ? "HTTP/1" : "RTSP/1",
1930                       cl->answer.i_version,
1931                       cl->answer.i_status, psz_status );
1932         for( i = 0; i < cl->answer.i_name; i++ )
1933         {
1934             p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1935                           cl->answer.value[i] );
1936         }
1937         p += sprintf( p, "\r\n" );
1938
1939         cl->i_buffer = 0;
1940         cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1941
1942         /*fprintf( stderr, "sending answer\n" );
1943         fprintf( stderr, "%s",  cl->p_buffer );*/
1944     }
1945
1946     i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
1947                            cl->i_buffer_size - cl->i_buffer );
1948     if( i_len >= 0 )
1949     {
1950         cl->i_buffer += i_len;
1951
1952         if( cl->i_buffer >= cl->i_buffer_size )
1953         {
1954             if( cl->answer.i_body == 0  && cl->answer.i_body_offset > 0 &&
1955                 !cl->b_read_waiting )
1956             {
1957                 /* catch more body data */
1958                 int     i_msg = cl->query.i_type;
1959                 int64_t i_offset = cl->answer.i_body_offset;
1960
1961                 httpd_MsgClean( &cl->answer );
1962                 cl->answer.i_body_offset = i_offset;
1963
1964                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1965                                           &cl->answer, &cl->query );
1966             }
1967
1968             if( cl->answer.i_body > 0 )
1969             {
1970                 /* send the body data */
1971                 free( cl->p_buffer );
1972                 cl->p_buffer = cl->answer.p_body;
1973                 cl->i_buffer_size = cl->answer.i_body;
1974                 cl->i_buffer = 0;
1975
1976                 cl->answer.i_body = 0;
1977                 cl->answer.p_body = NULL;
1978             }
1979             else
1980             {
1981                 /* send finished */
1982                 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1983             }
1984         }
1985     }
1986     else
1987     {
1988 #if defined( WIN32 ) || defined( UNDER_CE )
1989         if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1990 #else
1991         if( ( i_len < 0 && errno != EAGAIN ) || ( i_len == 0 ) )
1992 #endif
1993         {
1994             /* error */
1995             cl->i_state = HTTPD_CLIENT_DEAD;
1996         }
1997     }
1998 }
1999
2000 static void httpd_ClientTlsHsIn( httpd_client_t *cl )
2001 {
2002     switch( tls_SessionContinueHandshake( cl->p_tls ) )
2003     {
2004         case 0:
2005             cl->i_state = HTTPD_CLIENT_RECEIVING;
2006             break;
2007
2008         case -1:
2009             cl->i_state = HTTPD_CLIENT_DEAD;
2010             cl->p_tls = NULL;
2011             break;
2012
2013         case 2:
2014             cl->i_state = HTTPD_CLIENT_TLS_HS_OUT;
2015     }
2016 }
2017
2018 static void httpd_ClientTlsHsOut( httpd_client_t *cl )
2019 {
2020     switch( tls_SessionContinueHandshake( cl->p_tls ) )
2021     {
2022         case 0:
2023             cl->i_state = HTTPD_CLIENT_RECEIVING;
2024             break;
2025
2026         case -1:
2027             cl->i_state = HTTPD_CLIENT_DEAD;
2028             cl->p_tls = NULL;
2029             break;
2030
2031         case 1:
2032             cl->i_state = HTTPD_CLIENT_TLS_HS_IN;
2033             break;
2034     }
2035 }
2036
2037 static void* httpd_HostThread( void *data )
2038 {
2039     httpd_host_t *host = data;
2040     tls_session_t *p_tls = NULL;
2041     counter_t *p_total_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2042     counter_t *p_active_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
2043     int evfd = vlc_object_waitpipe( VLC_OBJECT( host ) );
2044
2045     for( ;; )
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         while( host->i_url <= 0 && host->i_ref > 0 )
2063             vlc_cond_wait( &host->wait, &host->lock );
2064
2065         mtime_t now = mdate();
2066         bool b_low_delay = false;
2067
2068         for(int i_client = 0; i_client < host->i_client; i_client++ )
2069         {
2070             httpd_client_t *cl = host->client[i_client];
2071             if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
2072                 ( cl->i_state == HTTPD_CLIENT_DEAD ||
2073                   ( cl->i_activity_timeout > 0 &&
2074                     cl->i_activity_date+cl->i_activity_timeout < now) ) ) )
2075             {
2076                 httpd_ClientClean( cl );
2077                 stats_UpdateInteger( host, p_active_counter, -1, NULL );
2078                 TAB_REMOVE( host->i_client, host->client, cl );
2079                 free( cl );
2080                 i_client--;
2081                 continue;
2082             }
2083
2084             struct pollfd *pufd = ufd + nfd;
2085             assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
2086
2087             pufd->fd = cl->fd;
2088             pufd->events = pufd->revents = 0;
2089
2090             if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
2091                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
2092             {
2093                 pufd->events = POLLIN;
2094             }
2095             else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
2096                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
2097             {
2098                 pufd->events = POLLOUT;
2099             }
2100             else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
2101             {
2102                 httpd_message_t *answer = &cl->answer;
2103                 httpd_message_t *query  = &cl->query;
2104                 int i_msg = query->i_type;
2105
2106                 httpd_MsgInit( answer );
2107
2108                 /* Handle what we received */
2109                 if( (cl->i_mode != HTTPD_CLIENT_BIDIR) &&
2110                     (i_msg == HTTPD_MSG_ANSWER || i_msg == HTTPD_MSG_CHANNEL) )
2111                 {
2112                     /* we can only receive request from client when not
2113                      * in BIDIR mode */
2114                     cl->url     = NULL;
2115                     cl->i_state = HTTPD_CLIENT_DEAD;
2116                 }
2117                 else if( i_msg == HTTPD_MSG_ANSWER )
2118                 {
2119                     /* We are in BIDIR mode, trigger the callback and then
2120                      * check for new data */
2121                     if( cl->url && cl->url->catch[i_msg].cb )
2122                     {
2123                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2124                                                   cl, NULL, query );
2125                     }
2126                     cl->i_state = HTTPD_CLIENT_WAITING;
2127                 }
2128                 else if( i_msg == HTTPD_MSG_CHANNEL )
2129                 {
2130                     /* We are in BIDIR mode, trigger the callback and then
2131                      * check for new data */
2132                     if( cl->url && cl->url->catch[i_msg].cb )
2133                     {
2134                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
2135                                                   cl, NULL, query );
2136                     }
2137                     cl->i_state = HTTPD_CLIENT_WAITING;
2138                 }
2139                 else if( i_msg == HTTPD_MSG_OPTIONS )
2140                 {
2141
2142                     answer->i_type   = HTTPD_MSG_ANSWER;
2143                     answer->i_proto  = query->i_proto;
2144                     answer->i_status = 200;
2145                     answer->i_body = 0;
2146                     answer->p_body = NULL;
2147
2148                     httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING );
2149                     httpd_MsgAdd( answer, "Content-Length", "0" );
2150
2151                     switch( query->i_proto )
2152                     {
2153                         case HTTPD_PROTO_HTTP:
2154                             answer->i_version = 1;
2155                             httpd_MsgAdd( answer, "Allow",
2156                                           "GET,HEAD,POST,OPTIONS" );
2157                             break;
2158
2159                         case HTTPD_PROTO_RTSP:
2160                         {
2161                             const char *p;
2162                             answer->i_version = 0;
2163
2164                             p = httpd_MsgGet( query, "Cseq" );
2165                             if( p != NULL )
2166                                 httpd_MsgAdd( answer, "Cseq", "%s", p );
2167                             p = httpd_MsgGet( query, "Timestamp" );
2168                             if( p != NULL )
2169                                 httpd_MsgAdd( answer, "Timestamp", "%s", p );
2170
2171                             p = httpd_MsgGet( query, "Require" );
2172                             if( p != NULL )
2173                             {
2174                                 answer->i_status = 551;
2175                                 httpd_MsgAdd( query, "Unsupported", "%s", p );
2176                             }
2177
2178                             httpd_MsgAdd( answer, "Public", "DESCRIBE,SETUP,"
2179                                           "TEARDOWN,PLAY,PAUSE,GET_PARAMETER" );
2180                             break;
2181                         }
2182                     }
2183
2184                     cl->i_buffer = -1;  /* Force the creation of the answer in
2185                                          * httpd_ClientSend */
2186                     cl->i_state = HTTPD_CLIENT_SENDING;
2187                 }
2188                 else if( i_msg == HTTPD_MSG_NONE )
2189                 {
2190                     if( query->i_proto == HTTPD_PROTO_NONE )
2191                     {
2192                         cl->url = NULL;
2193                         cl->i_state = HTTPD_CLIENT_DEAD;
2194                     }
2195                     else
2196                     {
2197                         char *p;
2198
2199                         /* unimplemented */
2200                         answer->i_proto  = query->i_proto ;
2201                         answer->i_type   = HTTPD_MSG_ANSWER;
2202                         answer->i_version= 0;
2203                         answer->i_status = 501;
2204
2205                         answer->i_body = httpd_HtmlError (&p, 501, NULL);
2206                         answer->p_body = (uint8_t *)p;
2207                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2208
2209                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2210                         cl->i_state = HTTPD_CLIENT_SENDING;
2211                     }
2212                 }
2213                 else
2214                 {
2215                     bool b_auth_failed = false;
2216                     bool b_hosts_failed = false;
2217
2218                     /* Search the url and trigger callbacks */
2219                     for(int i = 0; i < host->i_url; i++ )
2220                     {
2221                         httpd_url_t *url = host->url[i];
2222
2223                         if( !strcmp( url->psz_url, query->psz_url ) )
2224                         {
2225                             if( url->catch[i_msg].cb )
2226                             {
2227                                 if( answer && ( url->p_acl != NULL ) )
2228                                 {
2229                                     char ip[NI_MAXNUMERICHOST];
2230
2231                                     if( ( httpd_ClientIP( cl, ip ) == NULL )
2232                                      || ACL_Check( url->p_acl, ip ) )
2233                                     {
2234                                         b_hosts_failed = true;
2235                                         break;
2236                                     }
2237                                 }
2238
2239                                 if( answer && ( *url->psz_user || *url->psz_password ) )
2240                                 {
2241                                     /* create the headers */
2242                                     const char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
2243                                     char *user = NULL, *pass = NULL;
2244
2245                                     if( b64 != NULL
2246                                      && !strncasecmp( b64, "BASIC", 5 ) )
2247                                     {
2248                                         b64 += 5;
2249                                         while( *b64 == ' ' )
2250                                             b64++;
2251
2252                                         user = vlc_b64_decode( b64 );
2253                                         if (user != NULL)
2254                                         {
2255                                             pass = strchr (user, ':');
2256                                             if (pass != NULL)
2257                                                 *pass++ = '\0';
2258                                         }
2259                                     }
2260
2261                                     if ((user == NULL) || (pass == NULL)
2262                                      || strcmp (user, url->psz_user)
2263                                      || strcmp (pass, url->psz_password))
2264                                     {
2265                                         httpd_MsgAdd( answer,
2266                                                       "WWW-Authenticate",
2267                                                       "Basic realm=\"VLC stream\"" );
2268                                         /* We fail for all url */
2269                                         b_auth_failed = true;
2270                                         free( user );
2271                                         break;
2272                                     }
2273
2274                                     free( user );
2275                                 }
2276
2277                                 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
2278                                 {
2279                                     if( answer->i_proto == HTTPD_PROTO_NONE )
2280                                     {
2281                                         /* Raw answer from a CGI */
2282                                         cl->i_buffer = cl->i_buffer_size;
2283                                     }
2284                                     else
2285                                         cl->i_buffer = -1;
2286
2287                                     /* only one url can answer */
2288                                     answer = NULL;
2289                                     if( cl->url == NULL )
2290                                     {
2291                                         cl->url = url;
2292                                     }
2293                                 }
2294                             }
2295                         }
2296                     }
2297
2298                     if( answer )
2299                     {
2300                         char *p;
2301
2302                         answer->i_proto  = query->i_proto;
2303                         answer->i_type   = HTTPD_MSG_ANSWER;
2304                         answer->i_version= 0;
2305
2306                         if( b_hosts_failed )
2307                         {
2308                             answer->i_status = 403;
2309                         }
2310                         else if( b_auth_failed )
2311                         {
2312                             answer->i_status = 401;
2313                         }
2314                         else
2315                         {
2316                             /* no url registered */
2317                             answer->i_status = 404;
2318                         }
2319
2320                         answer->i_body = httpd_HtmlError (&p,
2321                                                           answer->i_status,
2322                                                           query->psz_url);
2323                         answer->p_body = (uint8_t *)p;
2324
2325                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2326                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2327                         httpd_MsgAdd( answer, "Content-Type", "%s", "text/html" );
2328                     }
2329
2330                     cl->i_state = HTTPD_CLIENT_SENDING;
2331                 }
2332             }
2333             else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2334             {
2335                 if( cl->i_mode == HTTPD_CLIENT_FILE || cl->answer.i_body_offset == 0 )
2336                 {
2337                     const char *psz_connection = httpd_MsgGet( &cl->answer, "Connection" );
2338                     const char *psz_query = httpd_MsgGet( &cl->query, "Connection" );
2339                     bool b_connection = false;
2340                     bool b_keepalive = false;
2341                     bool b_query = false;
2342
2343                     cl->url = NULL;
2344                     if( psz_connection )
2345                     {
2346                         b_connection = ( strcasecmp( psz_connection, "Close" ) == 0 );
2347                         b_keepalive = ( strcasecmp( psz_connection, "Keep-Alive" ) == 0 );
2348                     }
2349
2350                     if( psz_query )
2351                     {
2352                         b_query = ( strcasecmp( psz_query, "Close" ) == 0 );
2353                     }
2354
2355                     if( ( ( cl->query.i_proto == HTTPD_PROTO_HTTP ) &&
2356                           ( ( cl->query.i_version == 0 && b_keepalive ) ||
2357                             ( cl->query.i_version == 1 && !b_connection ) ) ) ||
2358                         ( ( cl->query.i_proto == HTTPD_PROTO_RTSP ) &&
2359                           !b_query && !b_connection ) )
2360                     {
2361                         httpd_MsgClean( &cl->query );
2362                         httpd_MsgInit( &cl->query );
2363
2364                         cl->i_buffer = 0;
2365                         cl->i_buffer_size = 1000;
2366                         free( cl->p_buffer );
2367                         cl->p_buffer = xmalloc( cl->i_buffer_size );
2368                         cl->i_state = HTTPD_CLIENT_RECEIVING;
2369                     }
2370                     else
2371                     {
2372                         cl->i_state = HTTPD_CLIENT_DEAD;
2373                     }
2374                     httpd_MsgClean( &cl->answer );
2375                 }
2376                 else if( cl->b_read_waiting )
2377                 {
2378                     /* we have a message waiting for us to read it */
2379                     httpd_MsgClean( &cl->answer );
2380                     httpd_MsgClean( &cl->query );
2381
2382                     cl->i_buffer = 0;
2383                     cl->i_buffer_size = 1000;
2384                     free( cl->p_buffer );
2385                     cl->p_buffer = xmalloc( cl->i_buffer_size );
2386                     cl->i_state = HTTPD_CLIENT_RECEIVING;
2387                     cl->b_read_waiting = false;
2388                 }
2389                 else
2390                 {
2391                     int64_t i_offset = cl->answer.i_body_offset;
2392                     httpd_MsgClean( &cl->answer );
2393
2394                     cl->answer.i_body_offset = i_offset;
2395                     free( cl->p_buffer );
2396                     cl->p_buffer = NULL;
2397                     cl->i_buffer = 0;
2398                     cl->i_buffer_size = 0;
2399
2400                     cl->i_state = HTTPD_CLIENT_WAITING;
2401                 }
2402             }
2403             else if( cl->i_state == HTTPD_CLIENT_WAITING )
2404             {
2405                 int64_t i_offset = cl->answer.i_body_offset;
2406                 int     i_msg = cl->query.i_type;
2407
2408                 httpd_MsgInit( &cl->answer );
2409                 cl->answer.i_body_offset = i_offset;
2410
2411                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2412                                           &cl->answer, &cl->query );
2413                 if( cl->answer.i_type != HTTPD_MSG_NONE )
2414                 {
2415                     /* we have new data, so re-enter send mode */
2416                     cl->i_buffer      = 0;
2417                     cl->p_buffer      = cl->answer.p_body;
2418                     cl->i_buffer_size = cl->answer.i_body;
2419                     cl->answer.p_body = NULL;
2420                     cl->answer.i_body = 0;
2421                     cl->i_state = HTTPD_CLIENT_SENDING;
2422                 }
2423             }
2424
2425             /* Special for BIDIR mode we also check reading */
2426             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2427                 cl->i_state == HTTPD_CLIENT_SENDING )
2428             {
2429                 pufd->events |= POLLIN;
2430             }
2431
2432             if (pufd->events != 0)
2433                 nfd++;
2434             else
2435                 b_low_delay = true;
2436         }
2437         vlc_mutex_unlock( &host->lock );
2438
2439         ufd[nfd].fd = evfd;
2440         ufd[nfd].events = POLLIN;
2441         ufd[nfd].revents = 0;
2442         nfd++;
2443
2444         /* we will wait 20ms (not too big) if HTTPD_CLIENT_WAITING */
2445         switch( poll( ufd, nfd, b_low_delay ? 20 : -1) )
2446         {
2447             case -1:
2448                 if (errno != EINTR)
2449                 {
2450                     /* Kernel on low memory or a bug: pace */
2451                     msg_Err( host, "polling error: %m" );
2452                     msleep( 100000 );
2453                 }
2454             case 0:
2455                 continue;
2456         }
2457
2458         if( ufd[nfd - 1].revents )
2459             break;
2460
2461         /* Handle client sockets */
2462         vlc_mutex_lock( &host->lock );
2463         now = mdate();
2464         nfd = host->nfd;
2465         for( int i_client = 0; i_client < host->i_client; i_client++ )
2466         {
2467             httpd_client_t *cl = host->client[i_client];
2468             const struct pollfd *pufd = &ufd[nfd];
2469
2470             assert( pufd < &ufd[sizeof(ufd) / sizeof(ufd[0])] );
2471
2472             if( cl->fd != pufd->fd )
2473                 continue; // we were not waiting for this client
2474             ++nfd;
2475             if( pufd->revents == 0 )
2476                 continue; // no event received
2477
2478             cl->i_activity_date = now;
2479
2480             if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2481             {
2482                 httpd_ClientRecv( cl );
2483             }
2484             else if( cl->i_state == HTTPD_CLIENT_SENDING )
2485             {
2486                 httpd_ClientSend( cl );
2487             }
2488             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_IN )
2489             {
2490                 httpd_ClientTlsHsIn( cl );
2491             }
2492             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT )
2493             {
2494                 httpd_ClientTlsHsOut( cl );
2495             }
2496
2497             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2498                 cl->i_state == HTTPD_CLIENT_SENDING &&
2499                 (pufd->revents & POLLIN) )
2500             {
2501                 cl->b_read_waiting = true;
2502             }
2503         }
2504         vlc_mutex_unlock( &host->lock );
2505
2506         /* Handle server sockets (accept new connections) */
2507         for( nfd = 0; nfd < host->nfd; nfd++ )
2508         {
2509             httpd_client_t *cl;
2510             int i_state = -1;
2511             int fd = ufd[nfd].fd;
2512
2513             assert (fd == host->fds[nfd]);
2514
2515             if( ufd[nfd].revents == 0 )
2516                 continue;
2517
2518             /* */
2519             fd = vlc_accept (fd, NULL, NULL, true);
2520             if (fd == -1)
2521                 continue;
2522             setsockopt (fd, SOL_SOCKET, SO_REUSEADDR,
2523                         &(int){ 1 }, sizeof(int));
2524
2525             if( p_tls != NULL )
2526             {
2527                 switch( tls_ServerSessionHandshake( p_tls, fd ) )
2528                 {
2529                     case -1:
2530                         msg_Err( host, "Rejecting TLS connection" );
2531                         net_Close( fd );
2532                         fd = -1;
2533                         p_tls = NULL;
2534                         break;
2535
2536                     case 1: /* missing input - most likely */
2537                         i_state = HTTPD_CLIENT_TLS_HS_IN;
2538                         break;
2539
2540                     case 2: /* missing output */
2541                         i_state = HTTPD_CLIENT_TLS_HS_OUT;
2542                         break;
2543                 }
2544
2545                 if( (p_tls == NULL) != (host->p_tls == NULL) )
2546                     break; // wasted TLS session, cannot accept() anymore
2547             }
2548
2549             stats_UpdateInteger( host, p_total_counter, 1, NULL );
2550             stats_UpdateInteger( host, p_active_counter, 1, NULL );
2551             cl = httpd_ClientNew( fd, p_tls, now );
2552             p_tls = NULL;
2553             vlc_mutex_lock( &host->lock );
2554             TAB_APPEND( host->i_client, host->client, cl );
2555             vlc_mutex_unlock( &host->lock );
2556             if( i_state != -1 )
2557                 cl->i_state = i_state; // override state for TLS
2558
2559             if (host->p_tls != NULL)
2560                 break; // cannot accept further without new TLS session
2561         }
2562
2563     }
2564
2565     if( p_tls != NULL )
2566         tls_ServerSessionClose( p_tls );
2567     if( p_total_counter )
2568         stats_CounterClean( p_total_counter );
2569     if( p_active_counter )
2570         stats_CounterClean( p_active_counter );
2571     return NULL;
2572 }