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

   1 /*****************************************************************************
   2  * httpd.c
   3  *****************************************************************************
   4  * Copyright (C) 2004-2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Rémi Denis-Courmont <rem # videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 #include <stdlib.h>
  26 #include <vlc/vlc.h>
  27
  28 #ifdef ENABLE_HTTPD
  29
  30 #include "vlc_httpd.h"
  31 #include "network.h"
  32 #include "vlc_tls.h"
  33 #include "vlc_acl.h"
  34
  35 #include <string.h>
  36 #include <errno.h>
  37
  38 #ifdef HAVE_UNISTD_H
  39 #   include <unistd.h>
  40 #endif
  41
  42 #ifdef HAVE_FCNTL_H
  43 #   include <fcntl.h>
  44 #endif
  45
  46 #if defined( UNDER_CE )
  47 #   include <winsock.h>
  48 #elif defined( WIN32 )
  49 #   include <winsock2.h>
  50 #   include <ws2tcpip.h>
  51 #else
  52 #   include <netdb.h>                                         /* hostent ... */
  53 #   include <sys/socket.h>
  54 /* FIXME: should not be needed */
  55 #   include <netinet/in.h>
  56 #   ifdef HAVE_ARPA_INET_H
  57 #       include <arpa/inet.h>                    /* inet_ntoa(), inet_aton() */
  58 #   endif
  59 #endif
  60
  61 #if 0
  62 typedef struct httpd_t          httpd_t;
  63
  64 typedef struct httpd_host_t     httpd_host_t;
  65 typedef struct httpd_url_t      httpd_url_t;
  66 typedef struct httpd_client_t   httpd_client_t;
  67
  68 enum
  69 {
  70     HTTPD_MSG_NONE,
  71
  72     /* answer */
  73     HTTPD_MSG_ANSWER,
  74
  75     /* channel communication */
  76     HTTPD_MSG_CHANNEL,
  77
  78     /* http request */
  79     HTTPD_MSG_GET,
  80     HTTPD_MSG_HEAD,
  81     HTTPD_MSG_POST,
  82
  83     /* rtsp request */
  84     HTTPD_MSG_OPTIONS,
  85     HTTPD_MSG_DESCRIBE,
  86     HTTPD_MSG_SETUP,
  87     HTTPD_MSG_PLAY,
  88     HTTPD_MSG_PAUSE,
  89     HTTPD_MSG_TEARDOWN,
  90
  91     /* just to track the count of MSG */
  92     HTTPD_MSG_MAX
  93 };
  94
  95 enum
  96 {
  97     HTTPD_PROTO_NONE,
  98     HTTPD_PROTO_HTTP,
  99     HTTPD_PROTO_RTSP,
 100 };
 101
 102 typedef struct
 103 {
 104     httpd_client_t *cl; /* NULL if not throught a connection e vlc internal */
 105
 106     int     i_type;
 107     int     i_proto;
 108     int     i_version;
 109
 110     /* for an answer */
 111     int     i_status;
 112     char    *psz_status;
 113
 114     /* for a query */
 115     char    *psz_url;
 116     char    *psz_args;  /* FIXME find a clean way to handle GET(psz_args) and POST(body) through the same code */
 117
 118     /* for rtp over rtsp */
 119     int     i_channel;
 120
 121     /* options */
 122     int     i_name;
 123     char    **name;
 124     int     i_value;
 125     char    **value;
 126
 127     /* body */
 128     int64_t i_body_offset;
 129     int     i_body;
 130     uint8_t *p_body;
 131
 132 } httpd_message_t;
 133
 134 typedef struct httpd_callback_sys_t httpd_callback_sys_t;
 135 /* answer could be null, int this case no answer is requested */
 136 typedef int (*httpd_callback_t)( httpd_callback_sys_t *, httpd_client_t *, httpd_message_t *answer, httpd_message_t *query );
 137
 138
 139 /* create a new host */
 140 httpd_host_t *httpd_HostNew( vlc_object_t *, char *psz_host, int i_port );
 141 /* delete a host */
 142 void          httpd_HostDelete( httpd_host_t * );
 143
 144 /* register a new url */
 145 httpd_url_t *httpd_UrlNew( httpd_host_t *, char *psz_url );
 146 /* register callback on a url */
 147 int          httpd_UrlCatch( httpd_url_t *, int i_msg,
 148                              httpd_callback_t, httpd_callback_sys_t * );
 149 /* delete an url */
 150 void         httpd_UrlDelete( httpd_url_t * );
 151
 152
 153 void httpd_ClientModeStream( httpd_client_t *cl );
 154 void httpd_ClientModeBidir( httpd_client_t *cl );
 155 static void httpd_ClientClean( httpd_client_t *cl );
 156
 157 /* High level */
 158 typedef struct httpd_file_t     httpd_file_t;
 159 typedef struct httpd_file_sys_t httpd_file_sys_t;
 160 typedef int (*httpd_file_callback_t)( httpd_file_sys_t*, httpd_file_t *, uint8_t *psz_request, uint8_t **pp_data, int *pi_data );
 161 httpd_file_t *httpd_FileNew( httpd_host_t *,
 162                              char *psz_url, char *psz_mime,
 163                              char *psz_user, char *psz_password,
 164                              httpd_file_callback_t pf_fill,
 165                              httpd_file_sys_t *p_sys );
 166 void         httpd_FileDelete( httpd_file_t * );
 167
 168 typedef struct httpd_redirect_t httpd_redirect_t;
 169 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *, char *psz_url_dst, char *psz_url_src );
 170 void              httpd_RedirectDelete( httpd_redirect_t * );
 171
 172 #if 0
 173 typedef struct httpd_stream_t httpd_stream_t;
 174 httpd_stream_t *httpd_StreamNew( httpd_host_t * );
 175 int             httpd_StreamHeader( httpd_stream_t *, uint8_t *p_data, int i_data );
 176 int             httpd_StreamSend( httpd_stream_t *, uint8_t *p_data, int i_data );
 177 void            httpd_StreamDelete( httpd_stream_t * );
 178 #endif
 179
 180 /* Msg functions facilities */
 181 void         httpd_MsgInit( httpd_message_t * );
 182 void         httpd_MsgAdd( httpd_message_t *, char *psz_name, char *psz_value, ... );
 183 /* return "" if not found. The string is not allocated */
 184 char        *httpd_MsgGet( httpd_message_t *, char *psz_name );
 185 void         httpd_MsgClean( httpd_message_t * );
 186 #endif
 187
 188 #if 0
 189 struct httpd_t
 190 {
 191     VLC_COMMON_MEMBERS
 192
 193     /* vlc_mutex_t  lock; */
 194     int          i_host;
 195     httpd_host_t **host;
 196 };
 197 #endif
 198
 199 static void httpd_ClientClean( httpd_client_t *cl );
 200
 201 /* each host run in his own thread */
 202 struct httpd_host_t
 203 {
 204     VLC_COMMON_MEMBERS
 205
 206     httpd_t     *httpd;
 207
 208     /* ref count */
 209     int         i_ref;
 210
 211     /* address/port and socket for listening at connections */
 212     char        *psz_hostname;
 213     int         i_port;
 214     int         *fd;
 215
 216     vlc_mutex_t lock;
 217
 218     /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
 219      * This will slow down the url research but make my live easier
 220      * All url will have their cb trigger, but only the first one can answer
 221      * */
 222     int         i_url;
 223     httpd_url_t **url;
 224
 225     int            i_client;
 226     httpd_client_t **client;
 227
 228     /* TLS data */
 229     tls_server_t *p_tls;
 230 };
 231
 232 struct httpd_url_t
 233 {
 234     httpd_host_t *host;
 235
 236     vlc_mutex_t lock;
 237
 238     char      *psz_url;
 239     char      *psz_user;
 240     char      *psz_password;
 241     vlc_acl_t *p_acl;
 242
 243     struct
 244     {
 245         httpd_callback_t     cb;
 246         httpd_callback_sys_t *p_sys;
 247     } catch[HTTPD_MSG_MAX];
 248 };
 249
 250 /* status */
 251 enum
 252 {
 253     HTTPD_CLIENT_RECEIVING,
 254     HTTPD_CLIENT_RECEIVE_DONE,
 255
 256     HTTPD_CLIENT_SENDING,
 257     HTTPD_CLIENT_SEND_DONE,
 258
 259     HTTPD_CLIENT_WAITING,
 260
 261     HTTPD_CLIENT_DEAD,
 262
 263     HTTPD_CLIENT_TLS_HS_IN,
 264     HTTPD_CLIENT_TLS_HS_OUT
 265 };
 266 /* mode */
 267 enum
 268 {
 269     HTTPD_CLIENT_FILE,      /* default */
 270     HTTPD_CLIENT_STREAM,    /* regulary get data from cb */
 271     HTTPD_CLIENT_BIDIR,     /* check for reading and get data from cb */
 272 };
 273
 274 struct httpd_client_t
 275 {
 276     httpd_url_t *url;
 277
 278     int     i_ref;
 279
 280     struct  sockaddr_storage sock;
 281     int     i_sock_size;
 282     int     fd;
 283
 284     int     i_mode;
 285     int     i_state;
 286     int     b_read_waiting; /* stop as soon as possible sending */
 287
 288     mtime_t i_activity_date;
 289     mtime_t i_activity_timeout;
 290
 291     /* buffer for reading header */
 292     int     i_buffer_size;
 293     int     i_buffer;
 294     uint8_t *p_buffer;
 295
 296     /* */
 297     httpd_message_t query;  /* client -> httpd */
 298     httpd_message_t answer; /* httpd -> client */
 299
 300     /* TLS data */
 301     tls_session_t *p_tls;
 302 };
 303
 304
 305 /*****************************************************************************
 306  * Various functions
 307  *****************************************************************************/
 308 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
 309 static void b64_decode( char *dest, char *src )
 310 {
 311     int  i_level;
 312     int  last = 0;
 313     int  b64[256] = {
 314         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
 315         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
 316         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
 317         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
 318         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
 319         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
 320         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
 321         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
 322         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
 323         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
 324         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
 325         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
 326         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
 327         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
 328         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
 329         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
 330         };
 331
 332     for( i_level = 0; *src != '\0'; src++ )
 333     {
 334         int  c;
 335
 336         c = b64[(unsigned int)*src];
 337         if( c == -1 )
 338         {
 339             continue;
 340         }
 341
 342         switch( i_level )
 343         {
 344             case 0:
 345                 i_level++;
 346                 break;
 347             case 1:
 348                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
 349                 i_level++;
 350                 break;
 351             case 2:
 352                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
 353                 i_level++;
 354                 break;
 355             case 3:
 356                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
 357                 i_level = 0;
 358         }
 359         last = c;
 360     }
 361
 362     *dest = '\0';
 363 }
 364
 365 static struct
 366 {
 367     char *psz_ext;
 368     char *psz_mime;
 369 } http_mime[] =
 370 {
 371     { ".htm",   "text/html" },
 372     { ".html",  "text/html" },
 373     { ".txt",   "text/plain" },
 374     { ".xml",   "text/xml" },
 375     { ".dtd",   "text/dtd" },
 376
 377     { ".css",   "text/css" },
 378
 379     /* image mime */
 380     { ".gif",   "image/gif" },
 381     { ".jpe",   "image/jpeg" },
 382     { ".jpg",   "image/jpeg" },
 383     { ".jpeg",  "image/jpeg" },
 384     { ".png",   "image/png" },
 385     { ".mpjpeg","multipart/x-mixed-replace; boundary=This Random String" },
 386
 387     /* media mime */
 388     { ".avi",   "video/avi" },
 389     { ".asf",   "video/x-ms-asf" },
 390     { ".m1a",   "audio/mpeg" },
 391     { ".m2a",   "audio/mpeg" },
 392     { ".m1v",   "video/mpeg" },
 393     { ".m2v",   "video/mpeg" },
 394     { ".mp2",   "audio/mpeg" },
 395     { ".mp3",   "audio/mpeg" },
 396     { ".mpa",   "audio/mpeg" },
 397     { ".mpg",   "video/mpeg" },
 398     { ".mpeg",  "video/mpeg" },
 399     { ".mpe",   "video/mpeg" },
 400     { ".mov",   "video/quicktime" },
 401     { ".moov",  "video/quicktime" },
 402     { ".ogg",   "application/ogg" },
 403     { ".ogm",   "application/ogg" },
 404     { ".wav",   "audio/wav" },
 405     { ".wma",   "audio/x-ms-wma" },
 406     { ".wmv",   "video/x-ms-wmv" },
 407
 408
 409     /* end */
 410     { NULL,     NULL }
 411 };
 412 static char *httpd_MimeFromUrl( char *psz_url )
 413 {
 414
 415     char *psz_ext;
 416
 417     psz_ext = strrchr( psz_url, '.' );
 418     if( psz_ext )
 419     {
 420         int i;
 421
 422         for( i = 0; http_mime[i].psz_ext != NULL ; i++ )
 423         {
 424             if( !strcasecmp( http_mime[i].psz_ext, psz_ext ) )
 425             {
 426                 return http_mime[i].psz_mime;
 427             }
 428         }
 429     }
 430     return "application/octet-stream";
 431 }
 432
 433 /*****************************************************************************
 434  * High Level Funtions: httpd_file_t
 435  *****************************************************************************/
 436 struct httpd_file_t
 437 {
 438     httpd_url_t *url;
 439
 440     char *psz_url;
 441     char *psz_mime;
 442
 443     httpd_file_callback_t pf_fill;
 444     httpd_file_sys_t      *p_sys;
 445
 446 };
 447
 448
 449 static int httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl, httpd_message_t *answer, httpd_message_t *query )
 450 {
 451     httpd_file_t *file = (httpd_file_t*)p_sys;
 452
 453     if( answer == NULL || query == NULL )
 454     {
 455         return VLC_SUCCESS;
 456     }
 457     answer->i_proto  = HTTPD_PROTO_HTTP;
 458     answer->i_version= query->i_version;
 459     answer->i_type   = HTTPD_MSG_ANSWER;
 460
 461     answer->i_status = 200;
 462     answer->psz_status = strdup( "OK" );
 463
 464     httpd_MsgAdd( answer, "Content-type",  "%s", file->psz_mime );
 465     httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 466
 467     if( query->i_type != HTTPD_MSG_HEAD )
 468     {
 469         uint8_t *psz_args = query->psz_args;
 470         if( query->i_type == HTTPD_MSG_POST )
 471         {
 472             /* Check that */
 473             psz_args = query->p_body;
 474         }
 475         file->pf_fill( file->p_sys, file, psz_args, &answer->p_body,
 476                        &answer->i_body );
 477     }
 478     /* We respect client request */
 479     if( strcmp( httpd_MsgGet( &cl->query, "Connection" ), "" ) )
 480     {
 481         httpd_MsgAdd( answer, "Connection",
 482                       httpd_MsgGet( &cl->query, "Connection" ) );
 483     }
 484
 485     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 486
 487     return VLC_SUCCESS;
 488 }
 489
 490
 491 httpd_file_t *httpd_FileNew( httpd_host_t *host,
 492                              char *psz_url, char *psz_mime,
 493                              char *psz_user, char *psz_password,
 494                              const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
 495                              httpd_file_sys_t *p_sys )
 496 {
 497     httpd_file_t *file = malloc( sizeof( httpd_file_t ) );
 498
 499     if( ( file->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 500                                           psz_password, p_acl )
 501         ) == NULL )
 502     {
 503         free( file );
 504         return NULL;
 505     }
 506
 507     file->psz_url  = strdup( psz_url );
 508     if( psz_mime && *psz_mime )
 509     {
 510         file->psz_mime = strdup( psz_mime );
 511     }
 512     else
 513     {
 514         file->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 515     }
 516
 517     file->pf_fill = pf_fill;
 518     file->p_sys   = p_sys;
 519
 520     httpd_UrlCatch( file->url, HTTPD_MSG_HEAD, httpd_FileCallBack,
 521                     (httpd_callback_sys_t*)file );
 522     httpd_UrlCatch( file->url, HTTPD_MSG_GET,  httpd_FileCallBack,
 523                     (httpd_callback_sys_t*)file );
 524     httpd_UrlCatch( file->url, HTTPD_MSG_POST, httpd_FileCallBack,
 525                     (httpd_callback_sys_t*)file );
 526
 527     return file;
 528 }
 529
 530 void httpd_FileDelete( httpd_file_t *file )
 531 {
 532     httpd_UrlDelete( file->url );
 533
 534     free( file->psz_url );
 535     free( file->psz_mime );
 536
 537     free( file );
 538 }
 539
 540 /*****************************************************************************
 541  * High Level Funtions: httpd_redirect_t
 542  *****************************************************************************/
 543 struct httpd_redirect_t
 544 {
 545     httpd_url_t *url;
 546     char        *psz_dst;
 547 };
 548
 549 static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
 550                                    httpd_client_t *cl, httpd_message_t *answer,
 551                                    httpd_message_t *query )
 552 {
 553     httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
 554     uint8_t *p;
 555
 556     if( answer == NULL || query == NULL )
 557     {
 558         return VLC_SUCCESS;
 559     }
 560     answer->i_proto  = query->i_proto;
 561     answer->i_version= query->i_version;
 562     answer->i_type   = HTTPD_MSG_ANSWER;
 563     answer->i_status = 301;
 564     answer->psz_status = strdup( "Moved Permanently" );
 565
 566     p = answer->p_body = malloc( 1000 + strlen( rdir->psz_dst ) );
 567     p += sprintf( (char *)p,
 568         "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"
 569         "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
 570         "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
 571         "<html>\n"
 572         "<head>\n"
 573         "<title>Redirection</title>\n"
 574         "</head>\n"
 575         "<body>\n"
 576         "<h1>You should be "
 577         "<a href=\"%s\">redirected</a></h1>\n"
 578         "<hr />\n"
 579         "<p><a href=\"http://www.videolan.org\">VideoLAN</a>\n</p>"
 580         "<hr />\n"
 581         "</body>\n"
 582         "</html>\n", rdir->psz_dst );
 583     answer->i_body = p - answer->p_body;
 584
 585     /* XXX check if it's ok or we need to set an absolute url */
 586     httpd_MsgAdd( answer, "Location",  "%s", rdir->psz_dst );
 587
 588     httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
 589
 590     return VLC_SUCCESS;
 591 }
 592
 593 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, char *psz_url_dst,
 594                                      char *psz_url_src )
 595 {
 596     httpd_redirect_t *rdir = malloc( sizeof( httpd_redirect_t ) );
 597
 598     if( !( rdir->url = httpd_UrlNewUnique( host, psz_url_src, NULL, NULL, NULL ) ) )
 599     {
 600         free( rdir );
 601         return NULL;
 602     }
 603     rdir->psz_dst = strdup( psz_url_dst );
 604
 605     /* Redirect apply for all HTTP request and RTSP DESCRIBE resquest */
 606     httpd_UrlCatch( rdir->url, HTTPD_MSG_HEAD, httpd_RedirectCallBack,
 607                     (httpd_callback_sys_t*)rdir );
 608     httpd_UrlCatch( rdir->url, HTTPD_MSG_GET, httpd_RedirectCallBack,
 609                     (httpd_callback_sys_t*)rdir );
 610     httpd_UrlCatch( rdir->url, HTTPD_MSG_POST, httpd_RedirectCallBack,
 611                     (httpd_callback_sys_t*)rdir );
 612     httpd_UrlCatch( rdir->url, HTTPD_MSG_DESCRIBE, httpd_RedirectCallBack,
 613                     (httpd_callback_sys_t*)rdir );
 614
 615     return rdir;
 616 }
 617 void httpd_RedirectDelete( httpd_redirect_t *rdir )
 618 {
 619     httpd_UrlDelete( rdir->url );
 620     free( rdir->psz_dst );
 621     free( rdir );
 622 }
 623
 624 /*****************************************************************************
 625  * High Level Funtions: httpd_stream_t
 626  *****************************************************************************/
 627 struct httpd_stream_t
 628 {
 629     vlc_mutex_t lock;
 630     httpd_url_t *url;
 631
 632     char    *psz_mime;
 633
 634     /* Header to send as first packet */
 635     uint8_t *p_header;
 636     int     i_header;
 637
 638     /* circular buffer */
 639     int         i_buffer_size;      /* buffer size, can't be reallocated smaller */
 640     uint8_t     *p_buffer;          /* buffer */
 641     int64_t     i_buffer_pos;       /* absolute position from begining */
 642     int64_t     i_buffer_last_pos;  /* a new connection will start with that */
 643 };
 644
 645 static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
 646                                  httpd_client_t *cl, httpd_message_t *answer,
 647                                  httpd_message_t *query )
 648 {
 649     httpd_stream_t *stream = (httpd_stream_t*)p_sys;
 650
 651     if( answer == NULL || query == NULL || cl == NULL )
 652     {
 653         return VLC_SUCCESS;
 654     }
 655     if( answer->i_body_offset > 0 )
 656     {
 657         int64_t i_write;
 658         int     i_pos;
 659
 660 #if 0
 661         fprintf( stderr, "httpd_StreamCallBack i_body_offset=%lld\n",
 662                  answer->i_body_offset );
 663 #endif
 664
 665         if( answer->i_body_offset >= stream->i_buffer_pos )
 666         {
 667             /* fprintf( stderr, "httpd_StreamCallBack: no data\n" ); */
 668             return VLC_EGENERIC;    /* wait, no data available */
 669         }
 670         if( answer->i_body_offset + stream->i_buffer_size <
 671             stream->i_buffer_pos )
 672         {
 673             /* this client isn't fast enough */
 674             fprintf( stderr, "fixing i_body_offset (old=%lld new=%lld)\n",
 675                      answer->i_body_offset, stream->i_buffer_last_pos );
 676             answer->i_body_offset = stream->i_buffer_last_pos;
 677         }
 678
 679         i_pos   = answer->i_body_offset % stream->i_buffer_size;
 680         i_write = stream->i_buffer_pos - answer->i_body_offset;
 681         if( i_write > 10000 )
 682         {
 683             i_write = 10000;
 684         }
 685         else if( i_write <= 0 )
 686         {
 687             return VLC_EGENERIC;    /* wait, no data available */
 688         }
 689
 690         /* Don't go past the end of the circular buffer */
 691         i_write = __MIN( i_write, stream->i_buffer_size - i_pos );
 692
 693         /* using HTTPD_MSG_ANSWER -> data available */
 694         answer->i_proto  = HTTPD_PROTO_HTTP;
 695         answer->i_version= 0;
 696         answer->i_type   = HTTPD_MSG_ANSWER;
 697
 698         answer->i_body = i_write;
 699         answer->p_body = malloc( i_write );
 700         memcpy( answer->p_body, &stream->p_buffer[i_pos], i_write );
 701
 702         answer->i_body_offset += i_write;
 703
 704         return VLC_SUCCESS;
 705     }
 706     else
 707     {
 708         answer->i_proto  = HTTPD_PROTO_HTTP;
 709         answer->i_version= 0;
 710         answer->i_type   = HTTPD_MSG_ANSWER;
 711
 712         answer->i_status = 200;
 713         answer->psz_status = strdup( "OK" );
 714
 715         if( query->i_type != HTTPD_MSG_HEAD )
 716         {
 717             httpd_ClientModeStream( cl );
 718             vlc_mutex_lock( &stream->lock );
 719             /* Send the header */
 720             if( stream->i_header > 0 )
 721             {
 722                 answer->i_body = stream->i_header;
 723                 answer->p_body = malloc( stream->i_header );
 724                 memcpy( answer->p_body, stream->p_header, stream->i_header );
 725             }
 726             answer->i_body_offset = stream->i_buffer_last_pos;
 727             vlc_mutex_unlock( &stream->lock );
 728         }
 729         else
 730         {
 731             httpd_MsgAdd( answer, "Content-Length", "%d", 0 );
 732             answer->i_body_offset = 0;
 733         }
 734
 735         if( !strcmp( stream->psz_mime, "video/x-ms-asf-stream" ) )
 736         {
 737             vlc_bool_t b_xplaystream = VLC_FALSE;
 738             int i;
 739
 740             httpd_MsgAdd( answer, "Content-type", "%s",
 741                           "application/octet-stream" );
 742             httpd_MsgAdd( answer, "Server", "Cougar 4.1.0.3921" );
 743             httpd_MsgAdd( answer, "Pragma", "no-cache" );
 744             httpd_MsgAdd( answer, "Pragma", "client-id=%d", rand()&0x7fff );
 745             httpd_MsgAdd( answer, "Pragma", "features=\"broadcast\"" );
 746
 747             /* Check if there is a xPlayStrm=1 */
 748             for( i = 0; i < query->i_name; i++ )
 749             {
 750                 if( !strcasecmp( query->name[i],  "Pragma" ) &&
 751                     strstr( query->value[i], "xPlayStrm=1" ) )
 752                 {
 753                     b_xplaystream = VLC_TRUE;
 754                 }
 755             }
 756
 757             if( !b_xplaystream )
 758             {
 759                 answer->i_body_offset = 0;
 760             }
 761         }
 762         else
 763         {
 764             httpd_MsgAdd( answer, "Content-type",  "%s", stream->psz_mime );
 765         }
 766         httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
 767         return VLC_SUCCESS;
 768     }
 769 }
 770
 771 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
 772                                  char *psz_url, char *psz_mime,
 773                                  char *psz_user, char *psz_password,
 774                                  const vlc_acl_t *p_acl )
 775 {
 776     httpd_stream_t *stream = malloc( sizeof( httpd_stream_t ) );
 777
 778     if( ( stream->url = httpd_UrlNewUnique( host, psz_url, psz_user,
 779                                             psz_password, p_acl )
 780         ) == NULL )
 781     {
 782         free( stream );
 783         return NULL;
 784     }
 785     vlc_mutex_init( host, &stream->lock );
 786     if( psz_mime && *psz_mime )
 787     {
 788         stream->psz_mime = strdup( psz_mime );
 789     }
 790     else
 791     {
 792         stream->psz_mime = strdup( httpd_MimeFromUrl( psz_url ) );
 793     }
 794     stream->i_header = 0;
 795     stream->p_header = NULL;
 796     stream->i_buffer_size = 5000000;    /* 5 Mo per stream */
 797     stream->p_buffer = malloc( stream->i_buffer_size );
 798     /* We set to 1 to make life simpler
 799      * (this way i_body_offset can never be 0) */
 800     stream->i_buffer_pos = 1;
 801     stream->i_buffer_last_pos = 1;
 802
 803     httpd_UrlCatch( stream->url, HTTPD_MSG_HEAD, httpd_StreamCallBack,
 804                     (httpd_callback_sys_t*)stream );
 805     httpd_UrlCatch( stream->url, HTTPD_MSG_GET, httpd_StreamCallBack,
 806                     (httpd_callback_sys_t*)stream );
 807     httpd_UrlCatch( stream->url, HTTPD_MSG_POST, httpd_StreamCallBack,
 808                     (httpd_callback_sys_t*)stream );
 809
 810     return stream;
 811 }
 812
 813 int httpd_StreamHeader( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 814 {
 815     vlc_mutex_lock( &stream->lock );
 816     if( stream->p_header )
 817     {
 818         free( stream->p_header );
 819         stream->p_header = NULL;
 820     }
 821     stream->i_header = i_data;
 822     if( i_data > 0 )
 823     {
 824         stream->p_header = malloc( i_data );
 825         memcpy( stream->p_header, p_data, i_data );
 826     }
 827     vlc_mutex_unlock( &stream->lock );
 828
 829     return VLC_SUCCESS;
 830 }
 831
 832 int httpd_StreamSend( httpd_stream_t *stream, uint8_t *p_data, int i_data )
 833 {
 834     int i_count;
 835     int i_pos;
 836
 837     if( i_data < 0 || p_data == NULL )
 838     {
 839         return VLC_SUCCESS;
 840     }
 841     vlc_mutex_lock( &stream->lock );
 842
 843     /* save this pointer (to be used by new connection) */
 844     stream->i_buffer_last_pos = stream->i_buffer_pos;
 845
 846     i_pos = stream->i_buffer_pos % stream->i_buffer_size;
 847     i_count = i_data;
 848     while( i_count > 0)
 849     {
 850         int i_copy;
 851
 852         i_copy = __MIN( i_count, stream->i_buffer_size - i_pos );
 853
 854         /* Ok, we can't go past the end of our buffer */
 855         memcpy( &stream->p_buffer[i_pos], p_data, i_copy );
 856
 857         i_pos = ( i_pos + i_copy ) % stream->i_buffer_size;
 858         i_count -= i_copy;
 859         p_data  += i_copy;
 860     }
 861
 862     stream->i_buffer_pos += i_data;
 863
 864     vlc_mutex_unlock( &stream->lock );
 865     return VLC_SUCCESS;
 866 }
 867
 868 void httpd_StreamDelete( httpd_stream_t *stream )
 869 {
 870     httpd_UrlDelete( stream->url );
 871     vlc_mutex_destroy( &stream->lock );
 872     if( stream->psz_mime ) free( stream->psz_mime );
 873     if( stream->p_header ) free( stream->p_header );
 874     if( stream->p_buffer ) free( stream->p_buffer );
 875     free( stream );
 876 }
 877
 878
 879 /*****************************************************************************
 880  * Low level
 881  *****************************************************************************/
 882 static void httpd_HostThread( httpd_host_t * );
 883
 884 /* create a new host */
 885 httpd_host_t *httpd_HostNew( vlc_object_t *p_this, const char *psz_host,
 886                              int i_port )
 887 {
 888     return httpd_TLSHostNew( p_this, psz_host, i_port, NULL, NULL, NULL, NULL
 889                            );
 890 }
 891
 892 httpd_host_t *httpd_TLSHostNew( vlc_object_t *p_this, const char *psz_hostname,
 893                                 int i_port,
 894                                 const char *psz_cert, const char *psz_key,
 895                                 const char *psz_ca, const char *psz_crl )
 896 {
 897     httpd_t      *httpd;
 898     httpd_host_t *host;
 899     tls_server_t *p_tls;
 900     char *psz_host;
 901     vlc_value_t  lockval;
 902     int i;
 903
 904     psz_host = strdup( psz_hostname );
 905     if( psz_host == NULL )
 906     {
 907         msg_Err( p_this, "memory error" );
 908         return NULL;
 909     }
 910
 911     /* to be sure to avoid multiple creation */
 912     var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
 913     var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
 914     vlc_mutex_lock( lockval.p_address );
 915
 916     if( !(httpd = vlc_object_find( p_this, VLC_OBJECT_HTTPD, FIND_ANYWHERE )) )
 917     {
 918         msg_Info( p_this, "creating httpd" );
 919         if( ( httpd = vlc_object_create( p_this, VLC_OBJECT_HTTPD ) ) == NULL )
 920         {
 921             vlc_mutex_unlock( lockval.p_address );
 922             free( psz_host );
 923             return NULL;
 924         }
 925
 926         httpd->i_host = 0;
 927         httpd->host   = NULL;
 928
 929         vlc_object_yield( httpd );
 930         vlc_object_attach( httpd, p_this->p_vlc );
 931     }
 932
 933     /* verify if it already exist */
 934     for( i = httpd->i_host - 1; i >= 0; i-- )
 935     {
 936         host = httpd->host[i];
 937
 938         /* cannot mix TLS and non-TLS hosts */
 939         if( ( ( httpd->host[i]->p_tls != NULL ) != ( psz_cert != NULL ) )
 940          || ( host->i_port != i_port )
 941          || strcmp( host->psz_hostname, psz_hostname ) )
 942             continue;
 943
 944         /* yep found */
 945         host->i_ref++;
 946
 947         vlc_mutex_unlock( lockval.p_address );
 948         return host;
 949     }
 950
 951     host = NULL;
 952
 953     /* determine TLS configuration */
 954     if ( psz_cert != NULL )
 955     {
 956         p_tls = tls_ServerCreate( p_this, psz_cert, psz_key );
 957         if ( p_tls == NULL )
 958         {
 959             msg_Err( p_this, "TLS initialization error" );
 960             goto error;
 961         }
 962
 963         if ( ( psz_ca != NULL) && tls_ServerAddCA( p_tls, psz_ca ) )
 964         {
 965             msg_Err( p_this, "TLS CA error" );
 966             goto error;
 967         }
 968
 969         if ( ( psz_crl != NULL) && tls_ServerAddCRL( p_tls, psz_crl ) )
 970         {
 971             msg_Err( p_this, "TLS CRL error" );
 972             goto error;
 973         }
 974     }
 975     else
 976         p_tls = NULL;
 977
 978     /* create the new host */
 979     host = vlc_object_create( p_this, sizeof( httpd_host_t ) );
 980     host->httpd = httpd;
 981     vlc_mutex_init( httpd, &host->lock );
 982     host->i_ref = 1;
 983
 984     host->fd = net_ListenTCP( p_this, psz_host, i_port );
 985     if( host->fd == NULL )
 986     {
 987         msg_Err( p_this, "cannot create socket(s) for HTTP host" );
 988         goto error;
 989     }
 990
 991     host->i_port = i_port;
 992     host->psz_hostname = psz_host;
 993
 994     host->i_url     = 0;
 995     host->url       = NULL;
 996     host->i_client  = 0;
 997     host->client    = NULL;
 998
 999     host->p_tls = p_tls;
1000
1001     /* create the thread */
1002     if( vlc_thread_create( host, "httpd host thread", httpd_HostThread,
1003                            VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
1004     {
1005         msg_Err( p_this, "cannot spawn http host thread" );
1006         goto error;
1007     }
1008
1009     /* now add it to httpd */
1010     TAB_APPEND( httpd->i_host, httpd->host, host );
1011     vlc_mutex_unlock( lockval.p_address );
1012
1013     return host;
1014
1015 error:
1016     free( psz_host );
1017     if( httpd->i_host <= 0 )
1018     {
1019         vlc_object_release( httpd );
1020         vlc_object_detach( httpd );
1021         vlc_object_destroy( httpd );
1022     }
1023     vlc_mutex_unlock( lockval.p_address );
1024
1025     if( host != NULL )
1026     {
1027         net_ListenClose( host->fd );
1028         vlc_mutex_destroy( &host->lock );
1029         vlc_object_destroy( host );
1030     }
1031
1032     if( p_tls != NULL )
1033         tls_ServerDelete( p_tls );
1034
1035     return NULL;
1036 }
1037
1038 /* delete a host */
1039 void httpd_HostDelete( httpd_host_t *host )
1040 {
1041     httpd_t *httpd = host->httpd;
1042     vlc_value_t lockval;
1043     int i;
1044
1045     msg_Dbg( host, "httpd_HostDelete" );
1046
1047     var_Get( httpd->p_libvlc, "httpd_mutex", &lockval );
1048     vlc_mutex_lock( lockval.p_address );
1049
1050     host->i_ref--;
1051     if( host->i_ref > 0 )
1052     {
1053         /* still used */
1054         vlc_mutex_unlock( lockval.p_address );
1055         msg_Dbg( host, "httpd_HostDelete: host still used" );
1056         return;
1057     }
1058     TAB_REMOVE( httpd->i_host, httpd->host, host );
1059
1060     msg_Dbg( host, "httpd_HostDelete: host removed from http" );
1061
1062     host->b_die = 1;
1063     vlc_thread_join( host );
1064
1065     msg_Dbg( host, "httpd_HostDelete: host thread joined" );
1066
1067     for( i = 0; i < host->i_url; i++ )
1068     {
1069         msg_Err( host, "url still registered:%s", host->url[i]->psz_url );
1070     }
1071     for( i = 0; i < host->i_client; i++ )
1072     {
1073         httpd_client_t *cl = host->client[i];
1074         msg_Warn( host, "client still connected" );
1075         httpd_ClientClean( cl );
1076         TAB_REMOVE( host->i_client, host->client, cl );
1077         free( cl );
1078         i--;
1079         /* TODO */
1080     }
1081
1082     if( host->p_tls != NULL)
1083         tls_ServerDelete( host->p_tls );
1084
1085     net_ListenClose( host->fd );
1086     free( host->psz_hostname );
1087
1088     vlc_mutex_destroy( &host->lock );
1089     vlc_object_destroy( host );
1090
1091     if( httpd->i_host <= 0 )
1092     {
1093         msg_Info( httpd, "httpd doesn't reference any host, deleting" );
1094         vlc_object_release( httpd );
1095         vlc_object_detach( httpd );
1096         vlc_object_destroy( httpd );
1097     }
1098     vlc_mutex_unlock( lockval.p_address );
1099 }
1100
1101 /* register a new url */
1102 static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, char *psz_url,
1103                                          char *psz_user, char *psz_password,
1104                                          const vlc_acl_t *p_acl, vlc_bool_t b_check )
1105 {
1106     httpd_url_t *url;
1107     int         i;
1108
1109     vlc_mutex_lock( &host->lock );
1110     if( b_check )
1111     {
1112         for( i = 0; i < host->i_url; i++ )
1113         {
1114             if( !strcmp( psz_url, host->url[i]->psz_url ) )
1115             {
1116                 msg_Warn( host->httpd,
1117                           "cannot add '%s' (url already defined)", psz_url );
1118                 vlc_mutex_unlock( &host->lock );
1119                 return NULL;
1120             }
1121         }
1122     }
1123
1124     url = malloc( sizeof( httpd_url_t ) );
1125     url->host = host;
1126
1127     vlc_mutex_init( host->httpd, &url->lock );
1128     url->psz_url = strdup( psz_url );
1129     url->psz_user = strdup( psz_user ? psz_user : "" );
1130     url->psz_password = strdup( psz_password ? psz_password : "" );
1131     url->p_acl = ACL_Duplicate( host, p_acl );
1132     for( i = 0; i < HTTPD_MSG_MAX; i++ )
1133     {
1134         url->catch[i].cb = NULL;
1135         url->catch[i].p_sys = NULL;
1136     }
1137
1138     TAB_APPEND( host->i_url, host->url, url );
1139     vlc_mutex_unlock( &host->lock );
1140
1141     return url;
1142 }
1143
1144 httpd_url_t *httpd_UrlNew( httpd_host_t *host, char *psz_url,
1145                            char *psz_user, char *psz_password,
1146                            const vlc_acl_t *p_acl )
1147 {
1148     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1149                                 psz_password, p_acl, VLC_FALSE );
1150 }
1151
1152 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, char *psz_url,
1153                                  char *psz_user, char *psz_password,
1154                                  const vlc_acl_t *p_acl )
1155 {
1156     return httpd_UrlNewPrivate( host, psz_url, psz_user,
1157                                 psz_password, p_acl, VLC_TRUE );
1158 }
1159
1160 /* register callback on a url */
1161 int httpd_UrlCatch( httpd_url_t *url, int i_msg, httpd_callback_t cb,
1162                     httpd_callback_sys_t *p_sys )
1163 {
1164     vlc_mutex_lock( &url->lock );
1165     url->catch[i_msg].cb   = cb;
1166     url->catch[i_msg].p_sys= p_sys;
1167     vlc_mutex_unlock( &url->lock );
1168
1169     return VLC_SUCCESS;
1170 }
1171
1172
1173 /* delete an url */
1174 void httpd_UrlDelete( httpd_url_t *url )
1175 {
1176     httpd_host_t *host = url->host;
1177     int          i;
1178
1179     vlc_mutex_lock( &host->lock );
1180     TAB_REMOVE( host->i_url, host->url, url );
1181
1182     vlc_mutex_destroy( &url->lock );
1183     free( url->psz_url );
1184     free( url->psz_user );
1185     free( url->psz_password );
1186     ACL_Destroy( url->p_acl );
1187
1188     for( i = 0; i < host->i_client; i++ )
1189     {
1190         httpd_client_t *client = host->client[i];
1191
1192         if( client->url == url )
1193         {
1194             /* TODO complete it */
1195             msg_Warn( host, "force closing connections" );
1196             httpd_ClientClean( client );
1197             TAB_REMOVE( host->i_client, host->client, client );
1198             free( client );
1199             i--;
1200         }
1201     }
1202     free( url );
1203     vlc_mutex_unlock( &host->lock );
1204 }
1205
1206 void httpd_MsgInit( httpd_message_t *msg )
1207 {
1208     msg->cl         = NULL;
1209     msg->i_type     = HTTPD_MSG_NONE;
1210     msg->i_proto    = HTTPD_PROTO_NONE;
1211     msg->i_version  = -1;
1212
1213     msg->i_status   = 0;
1214     msg->psz_status = NULL;
1215
1216     msg->psz_url = NULL;
1217     msg->psz_args = NULL;
1218
1219     msg->i_channel = -1;
1220
1221     msg->i_name = 0;
1222     msg->name   = NULL;
1223     msg->i_value= 0;
1224     msg->value  = NULL;
1225
1226     msg->i_body_offset = 0;
1227     msg->i_body        = 0;
1228     msg->p_body        = 0;
1229 }
1230
1231 void httpd_MsgClean( httpd_message_t *msg )
1232 {
1233     int i;
1234
1235     if( msg->psz_status )
1236     {
1237         free( msg->psz_status );
1238     }
1239     if( msg->psz_url )
1240     {
1241         free( msg->psz_url );
1242     }
1243     if( msg->psz_args )
1244     {
1245         free( msg->psz_args );
1246     }
1247     for( i = 0; i < msg->i_name; i++ )
1248     {
1249         free( msg->name[i] );
1250         free( msg->value[i] );
1251     }
1252     if( msg->name )
1253     {
1254         free( msg->name );
1255     }
1256     if( msg->value )
1257     {
1258         free( msg->value );
1259     }
1260     if( msg->p_body )
1261     {
1262         free( msg->p_body );
1263     }
1264     httpd_MsgInit( msg );
1265 }
1266
1267 char *httpd_MsgGet( httpd_message_t *msg, char *name )
1268 {
1269     int i;
1270
1271     for( i = 0; i < msg->i_name; i++ )
1272     {
1273         if( !strcasecmp( msg->name[i], name ))
1274         {
1275             return msg->value[i];
1276         }
1277     }
1278     return "";
1279 }
1280 void httpd_MsgAdd( httpd_message_t *msg, char *name, char *psz_value, ... )
1281 {
1282     va_list args;
1283     char *value = NULL;
1284
1285     va_start( args, psz_value );
1286 #if defined(HAVE_VASPRINTF) && !defined(SYS_DARWIN) && !defined(SYS_BEOS)
1287     vasprintf( &value, psz_value, args );
1288 #else
1289     {
1290         int i_size = strlen( psz_value ) + 4096;    /* FIXME stupid system */
1291         value = calloc( i_size, sizeof( char ) );
1292         vsnprintf( value, i_size, psz_value, args );
1293         value[i_size - 1] = 0;
1294     }
1295 #endif
1296     va_end( args );
1297
1298     name = strdup( name );
1299
1300     TAB_APPEND( msg->i_name,  msg->name,  name );
1301     TAB_APPEND( msg->i_value, msg->value, value );
1302 }
1303
1304 static void httpd_ClientInit( httpd_client_t *cl )
1305 {
1306     cl->i_state = HTTPD_CLIENT_RECEIVING;
1307     cl->i_activity_date = mdate();
1308     cl->i_activity_timeout = I64C(10000000);
1309     cl->i_buffer_size = 10000;
1310     cl->i_buffer = 0;
1311     cl->p_buffer = malloc( cl->i_buffer_size );
1312     cl->i_mode   = HTTPD_CLIENT_FILE;
1313     cl->b_read_waiting = VLC_FALSE;
1314
1315     httpd_MsgInit( &cl->query );
1316     httpd_MsgInit( &cl->answer );
1317 }
1318
1319 void httpd_ClientModeStream( httpd_client_t *cl )
1320 {
1321     cl->i_mode   = HTTPD_CLIENT_STREAM;
1322 }
1323
1324 void httpd_ClientModeBidir( httpd_client_t *cl )
1325 {
1326     cl->i_mode   = HTTPD_CLIENT_BIDIR;
1327 }
1328
1329 char* httpd_ClientIP( httpd_client_t *cl )
1330 {
1331     int i;
1332     char sz_ip[NI_MAXNUMERICHOST + 2];
1333
1334     i = vlc_getnameinfo( (const struct sockaddr *)&cl->sock, cl->i_sock_size,
1335                          sz_ip+1, NI_MAXNUMERICHOST, NULL, NI_NUMERICHOST );
1336
1337     if( i != 0 )
1338         return NULL;
1339
1340     /* semi-colon in address => must add bracket for HTTP */
1341     if( strchr( sz_ip + 1, ':' ) != NULL )
1342     {
1343         sz_ip[0] = '[';
1344         i = strlen( sz_ip );
1345         sz_ip[i++] = ']';
1346         sz_ip[i] = '\0';
1347
1348         return strdup(sz_ip);
1349     }
1350
1351     return strdup(sz_ip + 1);
1352 }
1353
1354 static void httpd_ClientClean( httpd_client_t *cl )
1355 {
1356     if( cl->fd >= 0 )
1357     {
1358         if( cl->p_tls != NULL )
1359             tls_ServerSessionClose( cl->p_tls );
1360         net_Close( cl->fd );
1361         cl->fd = -1;
1362     }
1363
1364     httpd_MsgClean( &cl->answer );
1365     httpd_MsgClean( &cl->query );
1366
1367     if( cl->p_buffer )
1368     {
1369         free( cl->p_buffer );
1370         cl->p_buffer = NULL;
1371     }
1372 }
1373
1374 static httpd_client_t *httpd_ClientNew( int fd, struct sockaddr_storage *sock,
1375                                         int i_sock_size,
1376                                         tls_session_t *p_tls )
1377 {
1378     httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
1379     cl->i_ref   = 0;
1380     cl->fd      = fd;
1381     memcpy( &cl->sock, sock, sizeof( cl->sock ) );
1382     cl->i_sock_size = i_sock_size;
1383     cl->url     = NULL;
1384     cl->p_tls = p_tls;
1385
1386     httpd_ClientInit( cl );
1387
1388     return cl;
1389 }
1390
1391
1392 static int httpd_NetRecv( httpd_client_t *cl, uint8_t *p, int i_len )
1393 {
1394     tls_session_t *p_tls;
1395
1396     p_tls = cl->p_tls;
1397     if( p_tls != NULL)
1398         return tls_Recv( p_tls, p, i_len );
1399
1400     return recv( cl->fd, p, i_len, 0 );
1401 }
1402
1403
1404 static int httpd_NetSend( httpd_client_t *cl, const uint8_t *p, int i_len )
1405 {
1406     tls_session_t *p_tls;
1407
1408     p_tls = cl->p_tls;
1409     if( p_tls != NULL)
1410         return tls_Send( p_tls, p, i_len );
1411
1412     return send( cl->fd, p, i_len, 0 );
1413 }
1414
1415
1416 static void httpd_ClientRecv( httpd_client_t *cl )
1417 {
1418     int i_len;
1419
1420     if( cl->query.i_proto == HTTPD_PROTO_NONE )
1421     {
1422         /* enought to see if it's rtp over rtsp or RTSP/HTTP */
1423         i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
1424                                4 - cl->i_buffer );
1425         if( i_len > 0 )
1426         {
1427             cl->i_buffer += i_len;
1428         }
1429
1430         if( cl->i_buffer >= 4 )
1431         {
1432             /*fprintf( stderr, "peek=%4.4s\n", cl->p_buffer );*/
1433             /* detect type */
1434             if( cl->p_buffer[0] == '$' )
1435             {
1436                 /* RTSP (rtp over rtsp) */
1437                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1438                 cl->query.i_type  = HTTPD_MSG_CHANNEL;
1439                 cl->query.i_channel = cl->p_buffer[1];
1440                 cl->query.i_body  = (cl->p_buffer[2] << 8)|cl->p_buffer[3];
1441                 cl->query.p_body  = malloc( cl->query.i_body );
1442
1443                 cl->i_buffer      = 0;
1444             }
1445             else if( !memcmp( cl->p_buffer, "HTTP", 4 ) )
1446             {
1447                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1448                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1449             }
1450             else if( !memcmp( cl->p_buffer, "RTSP", 4 ) )
1451             {
1452                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1453                 cl->query.i_type  = HTTPD_MSG_ANSWER;
1454             }
1455             else if( !memcmp( cl->p_buffer, "GET", 3 ) ||
1456                      !memcmp( cl->p_buffer, "HEAD", 4 ) ||
1457                      !memcmp( cl->p_buffer, "POST", 4 ) )
1458             {
1459                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1460                 cl->query.i_type  = HTTPD_MSG_NONE;
1461             }
1462             else
1463             {
1464                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1465                 cl->query.i_type  = HTTPD_MSG_NONE;
1466             }
1467         }
1468     }
1469     else if( cl->query.i_body > 0 )
1470     {
1471         /* we are reading the body of a request or a channel */
1472         i_len = httpd_NetRecv( cl, &cl->query.p_body[cl->i_buffer],
1473                                cl->query.i_body - cl->i_buffer );
1474         if( i_len > 0 )
1475         {
1476             cl->i_buffer += i_len;
1477         }
1478         if( cl->i_buffer >= cl->query.i_body )
1479         {
1480             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1481         }
1482     }
1483     else
1484     {
1485         /* we are reading a header -> char by char */
1486         for( ;; )
1487         {
1488             i_len = httpd_NetRecv (cl, &cl->p_buffer[cl->i_buffer], 1 );
1489             if( i_len <= 0 )
1490             {
1491                 break;
1492             }
1493             cl->i_buffer++;
1494
1495             if( cl->i_buffer + 1 >= cl->i_buffer_size )
1496             {
1497                 cl->i_buffer_size += 1024;
1498                 cl->p_buffer = realloc( cl->p_buffer, cl->i_buffer_size );
1499             }
1500             if( ( cl->i_buffer >= 2 && !memcmp( &cl->p_buffer[cl->i_buffer-2], "\n\n", 2 ) )||
1501                 ( cl->i_buffer >= 4 && !memcmp( &cl->p_buffer[cl->i_buffer-4], "\r\n\r\n", 4 ) ) )
1502             {
1503                 char *p;
1504
1505                 /* we have finished the header so parse it and set i_body */
1506                 cl->p_buffer[cl->i_buffer] = '\0';
1507
1508                 if( cl->query.i_type == HTTPD_MSG_ANSWER )
1509                 {
1510                     /* FIXME:
1511                      * assume strlen( "HTTP/1.x" ) = 8
1512                      */
1513                     cl->query.i_status =
1514                         strtol( (char *)&cl->p_buffer[8],
1515                                 &p, 0 );
1516                     while( *p == ' ' )
1517                     {
1518                         p++;
1519                     }
1520                     cl->query.psz_status = strdup( p );
1521                 }
1522                 else
1523                 {
1524                     static const struct
1525                     {
1526                         char *name;
1527                         int  i_type;
1528                         int  i_proto;
1529                     }
1530                     msg_type[] =
1531                     {
1532                         { "GET",        HTTPD_MSG_GET,  HTTPD_PROTO_HTTP },
1533                         { "HEAD",       HTTPD_MSG_HEAD, HTTPD_PROTO_HTTP },
1534                         { "POST",       HTTPD_MSG_POST, HTTPD_PROTO_HTTP },
1535
1536                         { "OPTIONS",    HTTPD_MSG_OPTIONS,  HTTPD_PROTO_RTSP },
1537                         { "DESCRIBE",   HTTPD_MSG_DESCRIBE, HTTPD_PROTO_RTSP },
1538                         { "SETUP",      HTTPD_MSG_SETUP,    HTTPD_PROTO_RTSP },
1539                         { "PLAY",       HTTPD_MSG_PLAY,     HTTPD_PROTO_RTSP },
1540                         { "PAUSE",      HTTPD_MSG_PAUSE,    HTTPD_PROTO_RTSP },
1541                         { "TEARDOWN",   HTTPD_MSG_TEARDOWN, HTTPD_PROTO_RTSP },
1542
1543                         { NULL,         HTTPD_MSG_NONE,     HTTPD_PROTO_NONE }
1544                     };
1545                     int  i;
1546
1547                     p = NULL;
1548                     cl->query.i_type = HTTPD_MSG_NONE;
1549
1550                     /*fprintf( stderr, "received new request=%s\n", cl->p_buffer);*/
1551
1552                     for( i = 0; msg_type[i].name != NULL; i++ )
1553                     {
1554                         if( !strncmp( (char *)cl->p_buffer, msg_type[i].name,
1555                                       strlen( msg_type[i].name ) ) )
1556                         {
1557                             p = (char *)&cl->p_buffer[strlen((char *)msg_type[i].name) + 1 ];
1558                             cl->query.i_type = msg_type[i].i_type;
1559                             if( cl->query.i_proto != msg_type[i].i_proto )
1560                             {
1561                                 p = NULL;
1562                                 cl->query.i_proto = HTTPD_PROTO_NONE;
1563                                 cl->query.i_type = HTTPD_MSG_NONE;
1564                             }
1565                             break;
1566                         }
1567                     }
1568                     if( p == NULL )
1569                     {
1570                         if( strstr( (char *)cl->p_buffer, "HTTP/1." ) )
1571                         {
1572                             cl->query.i_proto = HTTPD_PROTO_HTTP;
1573                         }
1574                         else if( strstr( (char *)cl->p_buffer, "RTSP/1." ) )
1575                         {
1576                             cl->query.i_proto = HTTPD_PROTO_RTSP;
1577                         }
1578                     }
1579                     else
1580                     {
1581                         char *p2;
1582                         char *p3;
1583
1584                         while( *p == ' ' )
1585                         {
1586                             p++;
1587                         }
1588                         p2 = strchr( p, ' ' );
1589                         if( p2 )
1590                         {
1591                             *p2++ = '\0';
1592                         }
1593                         if( !strncasecmp( p, "rtsp:", 5 ) )
1594                         {
1595                             /* for rtsp url, you have rtsp://localhost:port/path */
1596                             p += 5;
1597                             while( *p == '/' ) p++;
1598                             while( *p && *p != '/' ) p++;
1599                         }
1600                         cl->query.psz_url = strdup( p );
1601                         if( ( p3 = strchr( cl->query.psz_url, '?' ) )  )
1602                         {
1603                             *p3++ = '\0';
1604                             cl->query.psz_args = (uint8_t *)strdup( p3 );
1605                         }
1606                         if( p2 )
1607                         {
1608                             while( *p2 == ' ' )
1609                             {
1610                                 p2++;
1611                             }
1612                             if( !strncasecmp( p2, "HTTP/1.", 7 ) )
1613                             {
1614                                 cl->query.i_proto = HTTPD_PROTO_HTTP;
1615                                 cl->query.i_version = atoi( p2+7 );
1616                             }
1617                             else if( !strncasecmp( p2, "RTSP/1.", 7 ) )
1618                             {
1619                                 cl->query.i_proto = HTTPD_PROTO_RTSP;
1620                                 cl->query.i_version = atoi( p2+7 );
1621                             }
1622                         }
1623                         p = p2;
1624                     }
1625                 }
1626                 if( p )
1627                 {
1628                     p = strchr( p, '\n' );
1629                 }
1630                 if( p )
1631                 {
1632                     while( *p == '\n' || *p == '\r' )
1633                     {
1634                         p++;
1635                     }
1636                     while( p && *p != '\0' )
1637                     {
1638                         char *line = p;
1639                         char *eol = p = strchr( p, '\n' );
1640                         char *colon;
1641
1642                         while( eol && eol >= line && ( *eol == '\n' || *eol == '\r' ) )
1643                         {
1644                             *eol-- = '\0';
1645                         }
1646
1647                         if( ( colon = strchr( line, ':' ) ) )
1648                         {
1649                             char *name;
1650                             char *value;
1651
1652                             *colon++ = '\0';
1653                             while( *colon == ' ' )
1654                             {
1655                                 colon++;
1656                             }
1657                             name = strdup( line );
1658                             value = strdup( colon );
1659
1660                             TAB_APPEND( cl->query.i_name, cl->query.name, name );
1661                             TAB_APPEND( cl->query.i_value,cl->query.value,value);
1662
1663                             if( !strcasecmp( name, "Content-Length" ) )
1664                             {
1665                                 cl->query.i_body = atol( value );
1666                             }
1667                         }
1668
1669                         if( p )
1670                         {
1671                             p++;
1672                             while( *p == '\n' || *p == '\r' )
1673                             {
1674                                 p++;
1675                             }
1676                         }
1677                     }
1678                 }
1679                 if( cl->query.i_body > 0 )
1680                 {
1681                     /* TODO Mhh, handle the case client will only send a request and close the connection
1682                      * to mark and of body (probably only RTSP) */
1683                     cl->query.p_body = malloc( cl->query.i_body );
1684                     cl->i_buffer = 0;
1685                 }
1686                 else
1687                 {
1688                     cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1689                 }
1690             }
1691         }
1692     }
1693
1694     /* check if the client is to be set to dead */
1695 #if defined( WIN32 ) || defined( UNDER_CE )
1696     if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1697 #else
1698     if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1699 #endif
1700     {
1701         if( cl->query.i_proto != HTTPD_PROTO_NONE && cl->query.i_type != HTTPD_MSG_NONE )
1702         {
1703             /* connection closed -> end of data */
1704             if( cl->query.i_body > 0 )
1705             {
1706                 cl->query.i_body = cl->i_buffer;
1707             }
1708             cl->i_state = HTTPD_CLIENT_RECEIVE_DONE;
1709         }
1710         else
1711         {
1712             cl->i_state = HTTPD_CLIENT_DEAD;
1713         }
1714     }
1715     cl->i_activity_date = mdate();
1716
1717     /* XXX: for QT I have to disable timeout. Try to find why */
1718     if( cl->query.i_proto == HTTPD_PROTO_RTSP )
1719         cl->i_activity_timeout = 0;
1720
1721     /* Debugging only */
1722     /*if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1723     {
1724         int i;
1725
1726         fprintf( stderr, "received new request\n" );
1727         fprintf( stderr, "  - proto=%s\n",
1728                  cl->query.i_proto == HTTPD_PROTO_HTTP ? "HTTP" : "RTSP" );
1729         fprintf( stderr, "  - version=%d\n", cl->query.i_version );
1730         fprintf( stderr, "  - msg=%d\n", cl->query.i_type );
1731         if( cl->query.i_type == HTTPD_MSG_ANSWER )
1732         {
1733             fprintf( stderr, "  - answer=%d '%s'\n", cl->query.i_status,
1734                      cl->query.psz_status );
1735         }
1736         else if( cl->query.i_type != HTTPD_MSG_NONE )
1737         {
1738             fprintf( stderr, "  - url=%s\n", cl->query.psz_url );
1739         }
1740         for( i = 0; i < cl->query.i_name; i++ )
1741         {
1742             fprintf( stderr, "  - option name='%s' value='%s'\n",
1743                      cl->query.name[i], cl->query.value[i] );
1744         }
1745     }*/
1746 }
1747
1748
1749 static void httpd_ClientSend( httpd_client_t *cl )
1750 {
1751     int i;
1752     int i_len;
1753
1754     if( cl->i_buffer < 0 )
1755     {
1756         /* We need to create the header */
1757         int i_size = 0;
1758         char *p;
1759
1760         i_size = strlen( "HTTP/1.") + 10 + 10 +
1761                  strlen( cl->answer.psz_status ? cl->answer.psz_status : "" ) + 5;
1762         for( i = 0; i < cl->answer.i_name; i++ )
1763         {
1764             i_size += strlen( cl->answer.name[i] ) + 2 +
1765                       strlen( cl->answer.value[i] ) + 2;
1766         }
1767
1768         if( cl->i_buffer_size < i_size )
1769         {
1770             cl->i_buffer_size = i_size;
1771             free( cl->p_buffer );
1772             cl->p_buffer = malloc( i_size );
1773         }
1774         p = (char *)cl->p_buffer;
1775
1776         p += sprintf( p, "%s/1.%d %d %s\r\n",
1777                       cl->answer.i_proto ==  HTTPD_PROTO_HTTP ? "HTTP" : "RTSP",
1778                       cl->answer.i_version,
1779                       cl->answer.i_status, cl->answer.psz_status );
1780         for( i = 0; i < cl->answer.i_name; i++ )
1781         {
1782             p += sprintf( p, "%s: %s\r\n", cl->answer.name[i],
1783                           cl->answer.value[i] );
1784         }
1785         p += sprintf( p, "\r\n" );
1786
1787         cl->i_buffer = 0;
1788         cl->i_buffer_size = (uint8_t*)p - cl->p_buffer;
1789
1790         /*fprintf( stderr, "sending answer\n" );
1791         fprintf( stderr, "%s",  cl->p_buffer );*/
1792     }
1793
1794     i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
1795                            cl->i_buffer_size - cl->i_buffer );
1796     if( i_len > 0 )
1797     {
1798         cl->i_activity_date = mdate();
1799         cl->i_buffer += i_len;
1800
1801         if( cl->i_buffer >= cl->i_buffer_size )
1802         {
1803             if( cl->answer.i_body == 0  && cl->answer.i_body_offset > 0 &&
1804                 !cl->b_read_waiting )
1805             {
1806                 /* catch more body data */
1807                 int     i_msg = cl->query.i_type;
1808                 int64_t i_offset = cl->answer.i_body_offset;
1809
1810                 httpd_MsgClean( &cl->answer );
1811                 cl->answer.i_body_offset = i_offset;
1812
1813                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
1814                                           &cl->answer, &cl->query );
1815             }
1816
1817             if( cl->answer.i_body > 0 )
1818             {
1819                 /* send the body data */
1820                 free( cl->p_buffer );
1821                 cl->p_buffer = cl->answer.p_body;
1822                 cl->i_buffer_size = cl->answer.i_body;
1823                 cl->i_buffer = 0;
1824
1825                 cl->answer.i_body = 0;
1826                 cl->answer.p_body = NULL;
1827             }
1828             else
1829             {
1830                 /* send finished */
1831                 cl->i_state = HTTPD_CLIENT_SEND_DONE;
1832             }
1833         }
1834     }
1835     else
1836     {
1837 #if defined( WIN32 ) || defined( UNDER_CE )
1838         if( ( i_len < 0 && WSAGetLastError() != WSAEWOULDBLOCK ) || ( i_len == 0 ) )
1839 #else
1840         if( ( i_len < 0 && errno != EAGAIN && errno != EINTR ) || ( i_len == 0 ) )
1841 #endif
1842         {
1843             /* error */
1844             cl->i_state = HTTPD_CLIENT_DEAD;
1845         }
1846     }
1847 }
1848
1849 static void httpd_ClientTlsHsIn( httpd_client_t *cl )
1850 {
1851     switch( tls_SessionContinueHandshake( cl->p_tls ) )
1852     {
1853         case 0:
1854             cl->i_state = HTTPD_CLIENT_RECEIVING;
1855             break;
1856
1857         case -1:
1858             cl->i_state = HTTPD_CLIENT_DEAD;
1859             cl->p_tls = NULL;
1860             break;
1861
1862         case 2:
1863             cl->i_state = HTTPD_CLIENT_TLS_HS_OUT;
1864     }
1865 }
1866
1867 static void httpd_ClientTlsHsOut( httpd_client_t *cl )
1868 {
1869     switch( tls_SessionContinueHandshake( cl->p_tls ) )
1870     {
1871         case 0:
1872             cl->i_state = HTTPD_CLIENT_RECEIVING;
1873             break;
1874
1875         case -1:
1876             cl->i_state = HTTPD_CLIENT_DEAD;
1877             cl->p_tls = NULL;
1878             break;
1879
1880         case 1:
1881             cl->i_state = HTTPD_CLIENT_TLS_HS_IN;
1882             break;
1883     }
1884 }
1885
1886 static void httpd_HostThread( httpd_host_t *host )
1887 {
1888     tls_session_t *p_tls = NULL;
1889
1890     while( !host->b_die )
1891     {
1892         struct timeval  timeout;
1893         fd_set          fds_read;
1894         fd_set          fds_write;
1895         /* FIXME: (too) many int variables */
1896         int             fd, i_fd;
1897         int             i_handle_max = 0;
1898         int             i_ret;
1899         int             i_client;
1900         int             b_low_delay = 0;
1901
1902         if( host->i_url <= 0 )
1903         {
1904             /* 0.2s */
1905             msleep( 200000 );
1906             continue;
1907         }
1908
1909         /* built a set of handle to select */
1910         FD_ZERO( &fds_read );
1911         FD_ZERO( &fds_write );
1912
1913         i_handle_max = -1;
1914
1915         for( i_fd = 0; (fd = host->fd[i_fd]) != -1; i_fd++ )
1916         {
1917             FD_SET( fd, &fds_read );
1918             if( fd > i_handle_max )
1919                 i_handle_max = fd;
1920         }
1921
1922         /* prepare a new TLS session */
1923         if( ( p_tls == NULL ) && ( host->p_tls != NULL ) )
1924             p_tls = tls_ServerSessionPrepare( host->p_tls );
1925
1926         /* add all socket that should be read/write and close dead connection */
1927         vlc_mutex_lock( &host->lock );
1928         for( i_client = 0; i_client < host->i_client; i_client++ )
1929         {
1930             httpd_client_t *cl = host->client[i_client];
1931
1932             if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
1933                 ( cl->i_state == HTTPD_CLIENT_DEAD ||
1934                   ( cl->i_activity_timeout > 0 &&
1935                     cl->i_activity_date+cl->i_activity_timeout < mdate()) ) ) )
1936             {
1937                 httpd_ClientClean( cl );
1938                 TAB_REMOVE( host->i_client, host->client, cl );
1939                 free( cl );
1940                 i_client--;
1941                 continue;
1942             }
1943             else if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
1944                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
1945             {
1946                 FD_SET( cl->fd, &fds_read );
1947                 i_handle_max = __MAX( i_handle_max, cl->fd );
1948             }
1949             else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
1950                   || ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
1951             {
1952                 FD_SET( cl->fd, &fds_write );
1953                 i_handle_max = __MAX( i_handle_max, cl->fd );
1954             }
1955             else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
1956             {
1957                 httpd_message_t *answer = &cl->answer;
1958                 httpd_message_t *query  = &cl->query;
1959                 int i_msg = query->i_type;
1960
1961                 httpd_MsgInit( answer );
1962
1963                 /* Handle what we received */
1964                 if( cl->i_mode != HTTPD_CLIENT_BIDIR &&
1965                     (i_msg == HTTPD_MSG_ANSWER || i_msg == HTTPD_MSG_CHANNEL) )
1966                 {
1967                     /* we can only receive request from client when not
1968                      * in BIDIR mode */
1969                     cl->url     = NULL;
1970                     cl->i_state = HTTPD_CLIENT_DEAD;
1971                 }
1972                 else if( i_msg == HTTPD_MSG_ANSWER )
1973                 {
1974                     /* We are in BIDIR mode, trigger the callback and then
1975                      * check for new data */
1976                     if( cl->url && cl->url->catch[i_msg].cb )
1977                     {
1978                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
1979                                                   cl, NULL, query );
1980                     }
1981                     cl->i_state = HTTPD_CLIENT_WAITING;
1982                 }
1983                 else if( i_msg == HTTPD_MSG_CHANNEL )
1984                 {
1985                     /* We are in BIDIR mode, trigger the callback and then
1986                      * check for new data */
1987                     if( cl->url && cl->url->catch[i_msg].cb )
1988                     {
1989                         cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys,
1990                                                   cl, NULL, query );
1991                     }
1992                     cl->i_state = HTTPD_CLIENT_WAITING;
1993                 }
1994                 else if( i_msg == HTTPD_MSG_OPTIONS )
1995                 {
1996                     int i_cseq;
1997
1998                     /* unimplemented */
1999                     answer->i_proto  = query->i_proto ;
2000                     answer->i_type   = HTTPD_MSG_ANSWER;
2001                     answer->i_version= 0;
2002                     answer->i_status = 200;
2003                     answer->psz_status = strdup( "Ok" );
2004
2005                     answer->i_body = 0;
2006                     answer->p_body = NULL;
2007
2008                     i_cseq = atoi( httpd_MsgGet( query, "Cseq" ) );
2009                     httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
2010                     httpd_MsgAdd( answer, "Server", "VLC Server" );
2011                     httpd_MsgAdd( answer, "Public", "DESCRIBE, SETUP, "
2012                                  "TEARDOWN, PLAY, PAUSE" );
2013                     httpd_MsgAdd( answer, "Content-Length", "%d",
2014                                   answer->i_body );
2015
2016                     cl->i_buffer = -1;  /* Force the creation of the answer in
2017                                          * httpd_ClientSend */
2018                     cl->i_state = HTTPD_CLIENT_SENDING;
2019                 }
2020                 else if( i_msg == HTTPD_MSG_NONE )
2021                 {
2022                     if( query->i_proto == HTTPD_PROTO_NONE )
2023                     {
2024                         cl->url = NULL;
2025                         cl->i_state = HTTPD_CLIENT_DEAD;
2026                     }
2027                     else
2028                     {
2029                         uint8_t *p;
2030
2031                         /* unimplemented */
2032                         answer->i_proto  = query->i_proto ;
2033                         answer->i_type   = HTTPD_MSG_ANSWER;
2034                         answer->i_version= 0;
2035                         answer->i_status = 501;
2036                         answer->psz_status = strdup( "Unimplemented" );
2037
2038                         p = answer->p_body = malloc( 1000 );
2039
2040                         p += sprintf( (char *)p,
2041                             "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
2042                             "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
2043                             "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
2044                             "<html>\n"
2045                             "<head>\n"
2046                             "<title>Error 501</title>\n"
2047                             "</head>\n"
2048                             "<body>\n"
2049                             "<h1>501 Unimplemented</h1>\n"
2050                             "<hr />\n"
2051                             "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
2052                             "</body>\n"
2053                             "</html>\n" );
2054
2055                         answer->i_body = p - answer->p_body;
2056                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2057
2058                         cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2059                         cl->i_state = HTTPD_CLIENT_SENDING;
2060                     }
2061                 }
2062                 else
2063                 {
2064                     vlc_bool_t b_auth_failed = VLC_FALSE;
2065                     vlc_bool_t b_hosts_failed = VLC_FALSE;
2066                     int i;
2067
2068                     /* Search the url and trigger callbacks */
2069                     for( i = 0; i < host->i_url; i++ )
2070                     {
2071                         httpd_url_t *url = host->url[i];
2072
2073                         if( !strcmp( url->psz_url, query->psz_url ) )
2074                         {
2075                             if( url->catch[i_msg].cb )
2076                             {
2077                                 if( answer && ( url->p_acl != NULL ) )
2078                                 {
2079                                     char *ip = httpd_ClientIP( cl );
2080                                     if( ip != NULL )
2081                                     {
2082                                         if( ACL_Check( url->p_acl, ip ) )
2083                                         {
2084                                             b_hosts_failed = VLC_TRUE;
2085                                             free( ip );
2086                                             break;
2087                                         }
2088                                         free( ip );
2089                                     }
2090                                 }
2091
2092                                 if( answer && ( *url->psz_user || *url->psz_password ) )
2093                                 {
2094                                     /* create the headers */
2095                                     char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
2096                                     char *auth;
2097                                     char *id;
2098
2099                                     asprintf( &id, "%s:%s", url->psz_user, url->psz_password );
2100                                     auth = malloc( strlen(b64) + 1 );
2101
2102                                     if( !strncasecmp( b64, "BASIC", 5 ) )
2103                                     {
2104                                         b64 += 5;
2105                                         while( *b64 == ' ' )
2106                                         {
2107                                             b64++;
2108                                         }
2109                                         b64_decode( auth, b64 );
2110                                     }
2111                                     else
2112                                     {
2113                                         strcpy( auth, "" );
2114                                     }
2115                                     if( strcmp( id, auth ) )
2116                                     {
2117                                         httpd_MsgAdd( answer, "WWW-Authenticate", "Basic realm=\"%s\"", url->psz_user );
2118                                         /* We fail for all url */
2119                                         b_auth_failed = VLC_TRUE;
2120                                         free( id );
2121                                         free( auth );
2122                                         break;
2123                                     }
2124
2125                                     free( id );
2126                                     free( auth );
2127                                 }
2128
2129                                 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
2130                                 {
2131                                     /* only one url can answer */
2132                                     answer = NULL;
2133                                     if( cl->url == NULL )
2134                                     {
2135                                         cl->url = url;
2136                                     }
2137                                 }
2138                             }
2139                         }
2140                     }
2141                     if( answer )
2142                     {
2143                         uint8_t *p;
2144
2145                         answer->i_proto  = query->i_proto;
2146                         answer->i_type   = HTTPD_MSG_ANSWER;
2147                         answer->i_version= 0;
2148                         p = answer->p_body = malloc( 1000 + strlen(query->psz_url) );
2149
2150                         if( b_hosts_failed )
2151                         {
2152                             answer->i_status = 403;
2153                             answer->psz_status = strdup( "Forbidden" );
2154
2155                             /* FIXME: lots of code duplication */
2156                             p += sprintf( (char *)p,
2157                                 "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
2158                                 "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
2159                                 "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
2160                                 "<html>\n"
2161                                 "<head>\n"
2162                                 "<title>Error 403</title>\n"
2163                                 "</head>\n"
2164                                 "<body>\n"
2165                                 "<h1>403 Forbidden (%s)</h1>\n"
2166                                 "<hr />\n"
2167                                 "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
2168                                 "</body>\n"
2169                                 "</html>\n", query->psz_url );
2170                         }
2171                         else if( b_auth_failed )
2172                         {
2173                             answer->i_status = 401;
2174                             answer->psz_status = strdup( "Authorization Required" );
2175
2176                             p += sprintf( (char *)p,
2177                                 "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
2178                                 "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
2179                                 "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
2180                                 "<html>\n"
2181                                 "<head>\n"
2182                                 "<title>Error 401</title>\n"
2183                                 "</head>\n"
2184                                 "<body>\n"
2185                                 "<h1>401 Authorization Required (%s)</h1>\n"
2186                                 "<hr />\n"
2187                                 "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
2188                                 "</body>\n"
2189                                 "</html>\n", query->psz_url );
2190                         }
2191                         else
2192                         {
2193                             /* no url registered */
2194                             answer->i_status = 404;
2195                             answer->psz_status = strdup( "Not found" );
2196
2197                             p += sprintf( (char *)p,
2198                                 "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
2199                                 "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
2200                                 "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
2201                                 "<html>\n"
2202                                 "<head>\n"
2203                                 "<title>Error 404</title>\n"
2204                                 "</head>\n"
2205                                 "<body>\n"
2206                                 "<h1>404 Resource not found(%s)</h1>\n"
2207                                 "<hr />\n"
2208                                 "<a href=\"http://www.videolan.org\">VideoLAN</a>\n"
2209                                 "</body>\n"
2210                                 "</html>\n", query->psz_url );
2211                         }
2212
2213                         answer->i_body = p - answer->p_body;
2214                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
2215                     }
2216                     cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
2217                     cl->i_state = HTTPD_CLIENT_SENDING;
2218                 }
2219             }
2220             else if( cl->i_state == HTTPD_CLIENT_SEND_DONE )
2221             {
2222                 if( cl->i_mode == HTTPD_CLIENT_FILE || cl->answer.i_body_offset == 0 )
2223                 {
2224                     cl->url = NULL;
2225                     if( ( cl->query.i_proto == HTTPD_PROTO_HTTP &&
2226                           ( ( cl->answer.i_version == 0 && !strcasecmp( httpd_MsgGet( &cl->answer, "Connection" ), "Keep-Alive" ) ) ||
2227                             ( cl->answer.i_version == 1 &&  strcasecmp( httpd_MsgGet( &cl->answer, "Connection" ), "Close" ) ) ) ) ||
2228                         ( cl->query.i_proto == HTTPD_PROTO_RTSP &&
2229                           strcasecmp( httpd_MsgGet( &cl->query, "Connection" ), "Close" ) &&
2230                           strcasecmp( httpd_MsgGet( &cl->answer, "Connection" ), "Close" ) ) )
2231                     {
2232                         httpd_MsgClean( &cl->query );
2233                         httpd_MsgInit( &cl->query );
2234
2235                         cl->i_buffer = 0;
2236                         cl->i_buffer_size = 1000;
2237                         free( cl->p_buffer );
2238                         cl->p_buffer = malloc( cl->i_buffer_size );
2239                         cl->i_state = HTTPD_CLIENT_RECEIVING;
2240                     }
2241                     else
2242                     {
2243                         cl->i_state = HTTPD_CLIENT_DEAD;
2244                     }
2245                     httpd_MsgClean( &cl->answer );
2246                 }
2247                 else if( cl->b_read_waiting )
2248                 {
2249                     /* we have a message waiting for us to read it */
2250                     httpd_MsgClean( &cl->answer );
2251                     httpd_MsgClean( &cl->query );
2252
2253                     cl->i_buffer = 0;
2254                     cl->i_buffer_size = 1000;
2255                     free( cl->p_buffer );
2256                     cl->p_buffer = malloc( cl->i_buffer_size );
2257                     cl->i_state = HTTPD_CLIENT_RECEIVING;
2258                     cl->b_read_waiting = VLC_FALSE;
2259                 }
2260                 else
2261                 {
2262                     int64_t i_offset = cl->answer.i_body_offset;
2263                     httpd_MsgClean( &cl->answer );
2264
2265                     cl->answer.i_body_offset = i_offset;
2266                     free( cl->p_buffer );
2267                     cl->p_buffer = NULL;
2268                     cl->i_buffer = 0;
2269                     cl->i_buffer_size = 0;
2270
2271                     cl->i_state = HTTPD_CLIENT_WAITING;
2272                 }
2273             }
2274             else if( cl->i_state == HTTPD_CLIENT_WAITING )
2275             {
2276                 int64_t i_offset = cl->answer.i_body_offset;
2277                 int     i_msg = cl->query.i_type;
2278
2279                 httpd_MsgInit( &cl->answer );
2280                 cl->answer.i_body_offset = i_offset;
2281
2282                 cl->url->catch[i_msg].cb( cl->url->catch[i_msg].p_sys, cl,
2283                                           &cl->answer, &cl->query );
2284                 if( cl->answer.i_type != HTTPD_MSG_NONE )
2285                 {
2286                     /* we have new data, so reenter send mode */
2287                     cl->i_buffer      = 0;
2288                     cl->p_buffer      = cl->answer.p_body;
2289                     cl->i_buffer_size = cl->answer.i_body;
2290                     cl->answer.p_body = NULL;
2291                     cl->answer.i_body = 0;
2292                     cl->i_state = HTTPD_CLIENT_SENDING;
2293                 }
2294                 else
2295                 {
2296                     /* we shouldn't wait too long */
2297                     b_low_delay = VLC_TRUE;
2298                 }
2299             }
2300
2301             /* Special for BIDIR mode we also check reading */
2302             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2303                 cl->i_state == HTTPD_CLIENT_SENDING )
2304             {
2305                 FD_SET( cl->fd, &fds_read );
2306                 i_handle_max = __MAX( i_handle_max, cl->fd );
2307             }
2308         }
2309         vlc_mutex_unlock( &host->lock );
2310
2311         /* we will wait 100ms or 20ms (not too big 'cause HTTPD_CLIENT_WAITING) */
2312         timeout.tv_sec = 0;
2313         timeout.tv_usec = b_low_delay ? 20000 : 100000;
2314
2315         i_ret = select( i_handle_max + 1,
2316                         &fds_read, &fds_write, NULL, &timeout );
2317
2318         if( i_ret == -1 && errno != EINTR )
2319         {
2320 #if defined(WIN32) || defined(UNDER_CE)
2321             msg_Warn( host, "cannot select sockets (%d)", WSAGetLastError( ) );
2322 #else
2323             msg_Warn( host, "cannot select sockets : %s", strerror( errno ) );
2324 #endif
2325             msleep( 1000 );
2326             continue;
2327         }
2328         else if( i_ret <= 0 )
2329         {
2330             continue;
2331         }
2332
2333         /* accept new connections */
2334         for( i_fd = 0; (fd = host->fd[i_fd]) != -1; i_fd++ )
2335         {
2336             if( FD_ISSET( fd, &fds_read ) )
2337             {
2338                 socklen_t i_sock_size = sizeof( struct sockaddr_storage );
2339                 struct  sockaddr_storage sock;
2340
2341                 fd = accept( fd, (struct sockaddr *)&sock, &i_sock_size );
2342                 if( fd >= 0 )
2343                 {
2344                     int i_state = 0;
2345
2346                     /* set this new socket non-block */
2347     #if defined( WIN32 ) || defined( UNDER_CE )
2348                     {
2349                         unsigned long i_dummy = 1;
2350                         ioctlsocket( fd, FIONBIO, &i_dummy );
2351                     }
2352     #else
2353                     fcntl( fd, F_SETFL, O_NONBLOCK );
2354     #endif
2355
2356                     if( p_tls != NULL)
2357                     {
2358                         switch ( tls_ServerSessionHandshake( p_tls, fd ) )
2359                         {
2360                             case -1:
2361                                 msg_Err( host, "Rejecting TLS connection" );
2362                                 net_Close( fd );
2363                                 fd = -1;
2364                                 p_tls = NULL;
2365                                 break;
2366
2367                             case 1: /* missing input - most likely */
2368                                 i_state = HTTPD_CLIENT_TLS_HS_IN;
2369                                 break;
2370
2371                             case 2: /* missing output */
2372                                 i_state = HTTPD_CLIENT_TLS_HS_OUT;
2373                                 break;
2374                         }
2375                     }
2376
2377                     if( fd >= 0 )
2378                     {
2379                         httpd_client_t *cl;
2380
2381                         cl = httpd_ClientNew( fd, &sock, i_sock_size, p_tls );
2382                         p_tls = NULL;
2383                         vlc_mutex_lock( &host->lock );
2384                         TAB_APPEND( host->i_client, host->client, cl );
2385                         vlc_mutex_unlock( &host->lock );
2386
2387                         if( i_state != 0 )
2388                             cl->i_state = i_state; // override state for TLS
2389                     }
2390                 }
2391             }
2392         }
2393
2394         /* now try all others socket */
2395         vlc_mutex_lock( &host->lock );
2396         for( i_client = 0; i_client < host->i_client; i_client++ )
2397         {
2398             httpd_client_t *cl = host->client[i_client];
2399             if( cl->i_state == HTTPD_CLIENT_RECEIVING )
2400             {
2401                 httpd_ClientRecv( cl );
2402             }
2403             else if( cl->i_state == HTTPD_CLIENT_SENDING )
2404             {
2405                 httpd_ClientSend( cl );
2406             }
2407             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_IN )
2408             {
2409                 httpd_ClientTlsHsIn( cl );
2410             }
2411             else if( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT )
2412             {
2413                 httpd_ClientTlsHsOut( cl );
2414             }
2415
2416             if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
2417                 cl->i_state == HTTPD_CLIENT_SENDING &&
2418                 FD_ISSET( cl->fd, &fds_read ) )
2419             {
2420                 cl->b_read_waiting = VLC_TRUE;
2421             }
2422         }
2423         vlc_mutex_unlock( &host->lock );
2424     }
2425
2426     if( p_tls != NULL )
2427         tls_ServerSessionClose( p_tls );
2428 }
2429
2430 #else /* ENABLE_HTTPD */
2431
2432 /* We just define an empty wrapper */
2433 httpd_host_t *httpd_TLSHostNew( vlc_object_t *a, char *b, int c,
2434                                 tls_server_t *d )
2435 {
2436     msg_Err( a, "HTTP daemon support is disabled" );
2437     return 0;
2438 }
2439 httpd_host_t *httpd_HostNew( vlc_object_t *a, char *b, int c )
2440 {
2441     msg_Err( a, "HTTP daemon support is disabled" );
2442     return 0;
2443 }
2444 void httpd_HostDelete( httpd_host_t *a )
2445 {
2446 }
2447 httpd_url_t *httpd_UrlNew( httpd_host_t *host, char *psz_url,
2448                            char *psz_user, char *psz_password,
2449                            const vlc_acl_t *p_acl )
2450 {
2451     return NULL;
2452 }
2453 httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, char *psz_url,
2454                                  char *psz_user, char *psz_password,
2455                                  const vlc_acl_t *p_acl )
2456 {
2457     return NULL;
2458 }
2459 int httpd_UrlCatch( httpd_url_t *a, int b, httpd_callback_t c,
2460                     httpd_callback_sys_t *d ){ return 0; }
2461 void httpd_UrlDelete( httpd_url_t *a ){}
2462
2463 char *httpd_ClientIP( httpd_client_t *a ){ return 0; }
2464 void httpd_ClientModeStream( httpd_client_t *a ){}
2465 void httpd_ClientModeBidir( httpd_client_t *a ){}
2466
2467 void httpd_FileDelete( httpd_file_t *a ){}
2468 httpd_file_t *httpd_FileNew( httpd_host_t *a, char *b, char *c, char *d,
2469                              char *e, httpd_file_callback_t f,
2470                              httpd_file_sys_t *g ){ return 0; }
2471
2472 void httpd_RedirectDelete( httpd_redirect_t *a ){}
2473 httpd_redirect_t *httpd_RedirectNew( httpd_host_t *a,
2474                                      char *b, char *c ){ return 0; }
2475
2476 void httpd_StreamDelete( httpd_stream_t *a ){}
2477 int  httpd_StreamHeader( httpd_stream_t *a, uint8_t *b, int c ){ return 0; }
2478 int  httpd_StreamSend  ( httpd_stream_t *a, uint8_t *b, int c ){ return 0; }
2479 httpd_stream_t *httpd_StreamNew( httpd_host_t *a, char *b, char *c,
2480                                  char *d, char *e ){ return 0; }
2481
2482 void httpd_MsgInit ( httpd_message_t *a ){}
2483 void httpd_MsgAdd  ( httpd_message_t *a, char *b, char *c, ... ){}
2484 char *httpd_MsgGet ( httpd_message_t *a, char *b ){ return 0; }
2485 void httpd_MsgClean( httpd_message_t *a ){}
2486
2487 #endif /* ENABLE_HTTPD */