stream/network.c

   1 /*
   2  * Network layer for MPlayer
   3  *
   4  * Copyright (C) 2001 Bertrand Baudet <bertrand_baudet@yahoo.com>
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 //#define DUMP2FILE
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29
  30 #include <errno.h>
  31 #include <ctype.h>
  32
  33 #include "config.h"
  34
  35 #include "mp_msg.h"
  36
  37 #if HAVE_WINSOCK2_H
  38 #include <winsock2.h>
  39 #include <ws2tcpip.h>
  40 #endif
  41
  42 #include "stream.h"
  43 #include "libmpdemux/demuxer.h"
  44 #include "m_config.h"
  45 #include "mpcommon.h"
  46 #include "network.h"
  47 #include "tcp.h"
  48 #include "http.h"
  49 #include "cookies.h"
  50 #include "url.h"
  51
  52 extern int stream_cache_size;
  53
  54 /* Variables for the command line option -user, -passwd, -bandwidth,
  55    -user-agent and -nocookies */
  56
  57 char *network_username=NULL;
  58 char *network_password=NULL;
  59 int   network_bandwidth=0;
  60 int   network_cookies_enabled = 0;
  61 char *network_useragent=NULL;
  62 char *network_referrer=NULL;
  63
  64 /* IPv6 options */
  65 int   network_ipv4_only_proxy = 0;
  66
  67
  68 const mime_struct_t mime_type_table[] = {
  69 #ifdef CONFIG_LIBAVFORMAT
  70         // Flash Video
  71         { "video/x-flv", DEMUXER_TYPE_LAVF_PREFERRED},
  72         // do not force any demuxer in this case!
  73         // we want the lavf demuxer to be tried first (happens automatically anyway),
  74         // but for mov reference files to work we must also try
  75         // the native demuxer if lavf fails.
  76         { "video/quicktime", 0 },
  77 #endif
  78         // MP3 streaming, some MP3 streaming server answer with audio/mpeg
  79         { "audio/mpeg", DEMUXER_TYPE_AUDIO },
  80         // MPEG streaming
  81         { "video/mpeg", DEMUXER_TYPE_UNKNOWN },
  82         { "video/x-mpeg", DEMUXER_TYPE_UNKNOWN },
  83         { "video/x-mpeg2", DEMUXER_TYPE_UNKNOWN },
  84         // AVI ??? => video/x-msvideo
  85         { "video/x-msvideo", DEMUXER_TYPE_AVI },
  86         // MOV => video/quicktime
  87         { "video/quicktime", DEMUXER_TYPE_MOV },
  88         // ASF
  89         { "audio/x-ms-wax", DEMUXER_TYPE_ASF },
  90         { "audio/x-ms-wma", DEMUXER_TYPE_ASF },
  91         { "video/x-ms-asf", DEMUXER_TYPE_ASF },
  92         { "video/x-ms-afs", DEMUXER_TYPE_ASF },
  93         { "video/x-ms-wmv", DEMUXER_TYPE_ASF },
  94         { "video/x-ms-wma", DEMUXER_TYPE_ASF },
  95         { "application/x-mms-framed", DEMUXER_TYPE_ASF },
  96         { "application/vnd.ms.wms-hdr.asfv1", DEMUXER_TYPE_ASF },
  97         { "application/octet-stream", DEMUXER_TYPE_UNKNOWN },
  98         // Playlists
  99         { "video/x-ms-wmx", DEMUXER_TYPE_PLAYLIST },
 100         { "video/x-ms-wvx", DEMUXER_TYPE_PLAYLIST },
 101         { "audio/x-scpls", DEMUXER_TYPE_PLAYLIST },
 102         { "audio/x-mpegurl", DEMUXER_TYPE_PLAYLIST },
 103         { "audio/x-pls", DEMUXER_TYPE_PLAYLIST },
 104         // Real Media
 105 //      { "audio/x-pn-realaudio", DEMUXER_TYPE_REAL },
 106         // OGG Streaming
 107         { "application/x-ogg", DEMUXER_TYPE_OGG },
 108         // NullSoft Streaming Video
 109         { "video/nsv", DEMUXER_TYPE_NSV},
 110         { "misc/ultravox", DEMUXER_TYPE_NSV},
 111         { NULL, DEMUXER_TYPE_UNKNOWN},
 112 };
 113
 114
 115 streaming_ctrl_t *
 116 streaming_ctrl_new(void) {
 117         streaming_ctrl_t *streaming_ctrl;
 118         streaming_ctrl = malloc(sizeof(streaming_ctrl_t));
 119         if( streaming_ctrl==NULL ) {
 120                 mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 121                 return NULL;
 122         }
 123         memset( streaming_ctrl, 0, sizeof(streaming_ctrl_t) );
 124         return streaming_ctrl;
 125 }
 126
 127 void
 128 streaming_ctrl_free( streaming_ctrl_t *streaming_ctrl ) {
 129         if( streaming_ctrl==NULL ) return;
 130         if( streaming_ctrl->url ) url_free( streaming_ctrl->url );
 131         if( streaming_ctrl->buffer ) free( streaming_ctrl->buffer );
 132         if( streaming_ctrl->data ) free( streaming_ctrl->data );
 133         free( streaming_ctrl );
 134 }
 135
 136 URL_t*
 137 check4proxies( URL_t *url ) {
 138         URL_t *url_out = NULL;
 139         if( url==NULL ) return NULL;
 140         url_out = url_new( url->url );
 141         if( !strcasecmp(url->protocol, "http_proxy") ) {
 142                 mp_msg(MSGT_NETWORK,MSGL_V,"Using HTTP proxy: http://%s:%d\n", url->hostname, url->port );
 143                 return url_out;
 144         }
 145         // Check if the http_proxy environment variable is set.
 146         if( !strcasecmp(url->protocol, "http") ) {
 147                 char *proxy;
 148                 proxy = getenv("http_proxy");
 149                 if( proxy!=NULL ) {
 150                         // We got a proxy, build the URL to use it
 151                         int len;
 152                         char *new_url;
 153                         URL_t *tmp_url;
 154                         URL_t *proxy_url = url_new( proxy );
 155
 156                         if( proxy_url==NULL ) {
 157                                 mp_tmsg(MSGT_NETWORK,MSGL_WARN,
 158                                         "Invalid proxy setting... Trying without proxy.\n");
 159                                 return url_out;
 160                         }
 161
 162 #ifdef HAVE_AF_INET6
 163                         if (network_ipv4_only_proxy && (gethostbyname(url->hostname)==NULL)) {
 164                                 mp_tmsg(MSGT_NETWORK,MSGL_WARN,
 165                                         "Could not resolve remote hostname for AF_INET. Trying without proxy.\n");
 166                                 url_free(proxy_url);
 167                                 return url_out;
 168                         }
 169 #endif
 170
 171                         mp_msg(MSGT_NETWORK,MSGL_V,"Using HTTP proxy: %s\n", proxy_url->url );
 172                         len = strlen( proxy_url->hostname ) + strlen( url->url ) + 20;  // 20 = http_proxy:// + port
 173                         new_url = malloc( len+1 );
 174                         if( new_url==NULL ) {
 175                                 mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 176                                 url_free(proxy_url);
 177                                 return url_out;
 178                         }
 179                         sprintf(new_url, "http_proxy://%s:%d/%s", proxy_url->hostname, proxy_url->port, url->url );
 180                         tmp_url = url_new( new_url );
 181                         if( tmp_url==NULL ) {
 182                                 free( new_url );
 183                                 url_free( proxy_url );
 184                                 return url_out;
 185                         }
 186                         url_free( url_out );
 187                         url_out = tmp_url;
 188                         free( new_url );
 189                         url_free( proxy_url );
 190                 }
 191         }
 192         return url_out;
 193 }
 194
 195 int
 196 http_send_request( URL_t *url, off_t pos ) {
 197         HTTP_header_t *http_hdr;
 198         URL_t *server_url;
 199         char str[256];
 200         int fd = -1;
 201         int ret;
 202         int proxy = 0;          // Boolean
 203
 204         http_hdr = http_new_header();
 205
 206         if( !strcasecmp(url->protocol, "http_proxy") ) {
 207                 proxy = 1;
 208                 server_url = url_new( (url->file)+1 );
 209                 http_set_uri( http_hdr, server_url->url );
 210         } else {
 211                 server_url = url;
 212                 http_set_uri( http_hdr, server_url->file );
 213         }
 214         if (server_url->port && server_url->port != 80)
 215             snprintf(str, 256, "Host: %s:%d", server_url->hostname, server_url->port );
 216         else
 217             snprintf(str, 256, "Host: %s", server_url->hostname );
 218         http_set_field( http_hdr, str);
 219         if (network_useragent)
 220             snprintf(str, 256, "User-Agent: %s", network_useragent);
 221         else
 222             snprintf(str, 256, "User-Agent: %s", mplayer_version);
 223         http_set_field(http_hdr, str);
 224
 225         if (network_referrer) {
 226             char *referrer = NULL;
 227             size_t len = strlen(network_referrer) + 10;
 228
 229             // Check len to ensure we don't do something really bad in case of an overflow
 230             if (len > 10)
 231                 referrer = malloc(len);
 232
 233             if (referrer == NULL) {
 234                 mp_tmsg(MSGT_NETWORK, MSGL_FATAL, "Memory allocation failed.\n");
 235             } else {
 236                 snprintf(referrer, len, "Referer: %s", network_referrer);
 237                 http_set_field(http_hdr, referrer);
 238                 free(referrer);
 239             }
 240         }
 241
 242         if( strcasecmp(url->protocol, "noicyx") )
 243             http_set_field(http_hdr, "Icy-MetaData: 1");
 244
 245         if(pos>0) {
 246         // Extend http_send_request with possibility to do partial content retrieval
 247             snprintf(str, 256, "Range: bytes=%"PRId64"-", (int64_t)pos);
 248             http_set_field(http_hdr, str);
 249         }
 250
 251         if (network_cookies_enabled) cookies_set( http_hdr, server_url->hostname, server_url->url );
 252
 253         http_set_field( http_hdr, "Connection: close");
 254         http_add_basic_authentication( http_hdr, url->username, url->password );
 255         if( http_build_request( http_hdr )==NULL ) {
 256                 goto err_out;
 257         }
 258
 259         if( proxy ) {
 260                 if( url->port==0 ) url->port = 8080;                    // Default port for the proxy server
 261                 fd = connect2Server( url->hostname, url->port,1 );
 262                 url_free( server_url );
 263                 server_url = NULL;
 264         } else {
 265                 if( server_url->port==0 ) server_url->port = 80;        // Default port for the web server
 266                 fd = connect2Server( server_url->hostname, server_url->port,1 );
 267         }
 268         if( fd<0 ) {
 269                 goto err_out;
 270         }
 271         mp_msg(MSGT_NETWORK,MSGL_DBG2,"Request: [%s]\n", http_hdr->buffer );
 272
 273         ret = send( fd, http_hdr->buffer, http_hdr->buffer_size, DEFAULT_SEND_FLAGS );
 274         if( ret!=(int)http_hdr->buffer_size ) {
 275                 mp_tmsg(MSGT_NETWORK,MSGL_ERR,"Error while sending HTTP request: Didn't send all the request.\n");
 276                 goto err_out;
 277         }
 278
 279         http_free( http_hdr );
 280
 281         return fd;
 282 err_out:
 283         if (fd > 0) closesocket(fd);
 284         http_free(http_hdr);
 285         if (proxy && server_url)
 286                 url_free(server_url);
 287         return -1;
 288 }
 289
 290 HTTP_header_t *
 291 http_read_response( int fd ) {
 292         HTTP_header_t *http_hdr;
 293         char response[BUFFER_SIZE];
 294         int i;
 295
 296         http_hdr = http_new_header();
 297         if( http_hdr==NULL ) {
 298                 return NULL;
 299         }
 300
 301         do {
 302                 i = recv( fd, response, BUFFER_SIZE, 0 );
 303                 if( i<0 ) {
 304                         mp_tmsg(MSGT_NETWORK,MSGL_ERR,"Read failed.\n");
 305                         http_free( http_hdr );
 306                         return NULL;
 307                 }
 308                 if( i==0 ) {
 309                         mp_tmsg(MSGT_NETWORK,MSGL_ERR,"http_read_response read 0 (i.e. EOF).\n");
 310                         http_free( http_hdr );
 311                         return NULL;
 312                 }
 313                 http_response_append( http_hdr, response, i );
 314         } while( !http_is_header_entire( http_hdr ) );
 315         if (http_response_parse( http_hdr ) < 0) {
 316                 http_free( http_hdr );
 317                 return NULL;
 318         }
 319         return http_hdr;
 320 }
 321
 322 int
 323 http_authenticate(HTTP_header_t *http_hdr, URL_t *url, int *auth_retry) {
 324         char *aut;
 325
 326 #define MPDEMUX_NW_AuthFailed _(\
 327 "Authentication failed. Please use the -user and -passwd options to provide your\n"\
 328 "username/password for a list of URLs, or form an URL like:\n"\
 329 "http://username:password@hostname/file\n")
 330
 331
 332         if( *auth_retry==1 ) {
 333                 mp_tmsg(MSGT_NETWORK,MSGL_ERR,MPDEMUX_NW_AuthFailed);
 334                 return -1;
 335         }
 336         if( *auth_retry>0 ) {
 337                 if( url->username ) {
 338                         free( url->username );
 339                         url->username = NULL;
 340                 }
 341                 if( url->password ) {
 342                         free( url->password );
 343                         url->password = NULL;
 344                 }
 345         }
 346
 347         aut = http_get_field(http_hdr, "WWW-Authenticate");
 348         if( aut!=NULL ) {
 349                 char *aut_space;
 350                 aut_space = strstr(aut, "realm=");
 351                 if( aut_space!=NULL ) aut_space += 6;
 352                 mp_tmsg(MSGT_NETWORK,MSGL_INFO,"Authentication required for %s\n", aut_space);
 353         } else {
 354                 mp_tmsg(MSGT_NETWORK,MSGL_INFO,"Authentication required.\n");
 355         }
 356         if( network_username ) {
 357                 url->username = strdup(network_username);
 358                 if( url->username==NULL ) {
 359                         mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 360                         return -1;
 361                 }
 362         } else {
 363                 mp_tmsg(MSGT_NETWORK,MSGL_ERR,MPDEMUX_NW_AuthFailed);
 364                 return -1;
 365         }
 366         if( network_password ) {
 367                 url->password = strdup(network_password);
 368                 if( url->password==NULL ) {
 369                         mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 370                         return -1;
 371                 }
 372         } else {
 373                 mp_tmsg(MSGT_NETWORK,MSGL_INFO,"No password provided, trying blank password.\n");
 374         }
 375         (*auth_retry)++;
 376         return 0;
 377 }
 378
 379 int
 380 http_seek( stream_t *stream, off_t pos ) {
 381         HTTP_header_t *http_hdr = NULL;
 382         int fd;
 383         if( stream==NULL ) return 0;
 384
 385         if( stream->fd>0 ) closesocket(stream->fd); // need to reconnect to seek in http-stream
 386         fd = http_send_request( stream->streaming_ctrl->url, pos );
 387         if( fd<0 ) return 0;
 388
 389         http_hdr = http_read_response( fd );
 390
 391         if( http_hdr==NULL ) return 0;
 392
 393         if( mp_msg_test(MSGT_NETWORK,MSGL_V) )
 394                 http_debug_hdr( http_hdr );
 395
 396         switch( http_hdr->status_code ) {
 397                 case 200:
 398                 case 206: // OK
 399                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
 400                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
 401                         if( http_hdr->body_size>0 ) {
 402                                 if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 403                                         http_free( http_hdr );
 404                                         return -1;
 405                                 }
 406                         }
 407                         break;
 408                 default:
 409                         mp_tmsg(MSGT_NETWORK,MSGL_ERR,"Server returns %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 410                         closesocket( fd );
 411                         fd = -1;
 412         }
 413         stream->fd = fd;
 414
 415         if( http_hdr ) {
 416                 http_free( http_hdr );
 417                 stream->streaming_ctrl->data = NULL;
 418         }
 419
 420         stream->pos=pos;
 421
 422         return 1;
 423 }
 424
 425
 426 int
 427 streaming_bufferize( streaming_ctrl_t *streaming_ctrl, char *buffer, int size) {
 428 //printf("streaming_bufferize\n");
 429         streaming_ctrl->buffer = malloc(size);
 430         if( streaming_ctrl->buffer==NULL ) {
 431                 mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 432                 return -1;
 433         }
 434         memcpy( streaming_ctrl->buffer, buffer, size );
 435         streaming_ctrl->buffer_size = size;
 436         return size;
 437 }
 438
 439 int
 440 nop_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *stream_ctrl ) {
 441         int len=0;
 442 //printf("nop_streaming_read\n");
 443         if( stream_ctrl->buffer_size!=0 ) {
 444                 int buffer_len = stream_ctrl->buffer_size-stream_ctrl->buffer_pos;
 445 //printf("%d bytes in buffer\n", stream_ctrl->buffer_size);
 446                 len = (size<buffer_len)?size:buffer_len;
 447                 memcpy( buffer, (stream_ctrl->buffer)+(stream_ctrl->buffer_pos), len );
 448                 stream_ctrl->buffer_pos += len;
 449 //printf("buffer_pos = %d\n", stream_ctrl->buffer_pos );
 450                 if( stream_ctrl->buffer_pos>=stream_ctrl->buffer_size ) {
 451                         free( stream_ctrl->buffer );
 452                         stream_ctrl->buffer = NULL;
 453                         stream_ctrl->buffer_size = 0;
 454                         stream_ctrl->buffer_pos = 0;
 455 //printf("buffer cleaned\n");
 456                 }
 457 //printf("read %d bytes from buffer\n", len );
 458         }
 459
 460         if( len<size ) {
 461                 int ret;
 462                 ret = recv( fd, buffer+len, size-len, 0 );
 463                 if( ret<0 ) {
 464                         mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_read error : %s\n",strerror(errno));
 465                 }
 466                 len += ret;
 467 //printf("read %d bytes from network\n", len );
 468         }
 469
 470         return len;
 471 }
 472
 473 int
 474 nop_streaming_seek( int fd, off_t pos, streaming_ctrl_t *stream_ctrl ) {
 475         return -1;
 476         // To shut up gcc warning
 477         fd++;
 478         pos++;
 479         stream_ctrl=NULL;
 480 }
 481
 482
 483 void fixup_network_stream_cache(stream_t *stream) {
 484   if(stream->streaming_ctrl->buffering) {
 485     if(stream_cache_size<0) {
 486       // cache option not set, will use our computed value.
 487       // buffer in KBytes, *5 because the prefill is 20% of the buffer.
 488       stream_cache_size = (stream->streaming_ctrl->prebuffer_size/1024)*5;
 489       if( stream_cache_size<64 ) stream_cache_size = 64;        // 16KBytes min buffer
 490     }
 491     mp_tmsg(MSGT_NETWORK,MSGL_INFO,"Cache size set to %d KBytes\n", stream_cache_size);
 492   }
 493 }