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 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <unistd.h>
  27
  28 #include <errno.h>
  29 #include <ctype.h>
  30
  31 #include "config.h"
  32 #include "options.h"
  33
  34 #include "mp_msg.h"
  35
  36 #if HAVE_WINSOCK2_H
  37 #include <winsock2.h>
  38 #include <ws2tcpip.h>
  39 #endif
  40
  41 #include "stream.h"
  42 #include "libmpdemux/demuxer.h"
  43 #include "m_config.h"
  44 #include "mpcommon.h"
  45 #include "network.h"
  46 #include "tcp.h"
  47 #include "http.h"
  48 #include "cookies.h"
  49 #include "url.h"
  50
  51 /* Variables for the command line option -user, -passwd, -bandwidth,
  52    -user-agent and -nocookies */
  53
  54 char *network_username=NULL;
  55 char *network_password=NULL;
  56 int   network_bandwidth=0;
  57 int   network_cookies_enabled = 0;
  58 char *network_useragent=NULL;
  59 char *network_referrer=NULL;
  60 char **network_http_header_fields=NULL;
  61
  62 /* IPv6 options */
  63 int   network_ipv4_only_proxy = 0;
  64
  65
  66 const mime_struct_t mime_type_table[] = {
  67         // Flash Video
  68         { "video/x-flv", DEMUXER_TYPE_LAVF_PREFERRED},
  69         // do not force any demuxer in this case!
  70         // we want the lavf demuxer to be tried first (happens automatically anyway),
  71         // but for mov reference files to work we must also try
  72         // the native demuxer if lavf fails.
  73         { "video/quicktime", 0 },
  74         // MP3 streaming, some MP3 streaming server answer with audio/mpeg
  75         { "audio/mpeg", DEMUXER_TYPE_AUDIO },
  76         // MPEG streaming
  77         { "video/mpeg", DEMUXER_TYPE_UNKNOWN },
  78         { "video/x-mpeg", DEMUXER_TYPE_UNKNOWN },
  79         { "video/x-mpeg2", DEMUXER_TYPE_UNKNOWN },
  80         // AVI ??? => video/x-msvideo
  81         { "video/x-msvideo", DEMUXER_TYPE_AVI },
  82         // MOV => video/quicktime
  83         { "video/quicktime", DEMUXER_TYPE_MOV },
  84         // ASF
  85         { "audio/x-ms-wax", DEMUXER_TYPE_ASF },
  86         { "audio/x-ms-wma", DEMUXER_TYPE_ASF },
  87         { "video/x-ms-asf", DEMUXER_TYPE_ASF },
  88         { "video/x-ms-afs", DEMUXER_TYPE_ASF },
  89         { "video/x-ms-wmv", DEMUXER_TYPE_ASF },
  90         { "video/x-ms-wma", DEMUXER_TYPE_ASF },
  91         { "application/x-mms-framed", DEMUXER_TYPE_ASF },
  92         { "application/vnd.ms.wms-hdr.asfv1", DEMUXER_TYPE_ASF },
  93         { "application/octet-stream", DEMUXER_TYPE_UNKNOWN },
  94         // Playlists
  95         { "video/x-ms-wmx", DEMUXER_TYPE_PLAYLIST },
  96         { "video/x-ms-wvx", DEMUXER_TYPE_PLAYLIST },
  97         { "audio/x-scpls", DEMUXER_TYPE_PLAYLIST },
  98         { "audio/x-mpegurl", DEMUXER_TYPE_PLAYLIST },
  99         { "audio/x-pls", DEMUXER_TYPE_PLAYLIST },
 100         // Real Media
 101 //      { "audio/x-pn-realaudio", DEMUXER_TYPE_REAL },
 102         // OGG Streaming
 103         { "application/x-ogg", DEMUXER_TYPE_OGG },
 104         // NullSoft Streaming Video
 105         { "video/nsv", DEMUXER_TYPE_NSV},
 106         { "misc/ultravox", DEMUXER_TYPE_NSV},
 107         { NULL, DEMUXER_TYPE_UNKNOWN},
 108 };
 109
 110
 111 streaming_ctrl_t *
 112 streaming_ctrl_new(void) {
 113         streaming_ctrl_t *streaming_ctrl = calloc(1, sizeof(*streaming_ctrl));
 114         if( streaming_ctrl==NULL ) {
 115                 mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 116                 return NULL;
 117         }
 118         return streaming_ctrl;
 119 }
 120
 121 void
 122 streaming_ctrl_free( streaming_ctrl_t *streaming_ctrl ) {
 123         if( streaming_ctrl==NULL ) return;
 124         if( streaming_ctrl->url ) url_free( streaming_ctrl->url );
 125         free(streaming_ctrl->buffer);
 126         free(streaming_ctrl->data);
 127         free(streaming_ctrl);
 128 }
 129
 130 URL_t*
 131 check4proxies( URL_t *url ) {
 132         URL_t *url_out = NULL;
 133         if( url==NULL ) return NULL;
 134         url_out = url_new( url->url );
 135         if( !strcasecmp(url->protocol, "http_proxy") ) {
 136                 mp_msg(MSGT_NETWORK,MSGL_V,"Using HTTP proxy: http://%s:%d\n", url->hostname, url->port );
 137                 return url_out;
 138         }
 139         // Check if the http_proxy environment variable is set.
 140         if( !strcasecmp(url->protocol, "http") ) {
 141                 char *proxy;
 142                 proxy = getenv("http_proxy");
 143                 if( proxy!=NULL ) {
 144                         // We got a proxy, build the URL to use it
 145                         int len;
 146                         char *new_url;
 147                         URL_t *tmp_url;
 148                         URL_t *proxy_url = url_new( proxy );
 149
 150                         if( proxy_url==NULL ) {
 151                                 mp_tmsg(MSGT_NETWORK,MSGL_WARN,
 152                                         "Invalid proxy setting... Trying without proxy.\n");
 153                                 return url_out;
 154                         }
 155
 156 #ifdef HAVE_AF_INET6
 157                         if (network_ipv4_only_proxy && (gethostbyname(url->hostname)==NULL)) {
 158                                 mp_tmsg(MSGT_NETWORK,MSGL_WARN,
 159                                         "Could not resolve remote hostname for AF_INET. Trying without proxy.\n");
 160                                 url_free(proxy_url);
 161                                 return url_out;
 162                         }
 163 #endif
 164
 165                         mp_msg(MSGT_NETWORK,MSGL_V,"Using HTTP proxy: %s\n", proxy_url->url );
 166                         len = make_http_proxy_url(proxy_url, url->url, NULL, 0) + 1;
 167                         new_url = malloc(len);
 168                         if( new_url==NULL ) {
 169                                 mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 170                                 url_free(proxy_url);
 171                                 return url_out;
 172                         }
 173                         make_http_proxy_url(proxy_url, url->url, new_url, len);
 174                         tmp_url = url_new( new_url );
 175                         if( tmp_url==NULL ) {
 176                                 free( new_url );
 177                                 url_free( proxy_url );
 178                                 return url_out;
 179                         }
 180                         url_free( url_out );
 181                         url_out = tmp_url;
 182                         free( new_url );
 183                         url_free( proxy_url );
 184                 }
 185         }
 186         return url_out;
 187 }
 188
 189 int
 190 http_send_request( URL_t *url, off_t pos ) {
 191         HTTP_header_t *http_hdr;
 192         URL_t *server_url;
 193         char str[256];
 194         int fd = -1;
 195         int ret;
 196         int proxy = 0;          // Boolean
 197
 198         http_hdr = http_new_header();
 199
 200         if( !strcasecmp(url->protocol, "http_proxy") ) {
 201                 proxy = 1;
 202                 server_url = url_new( (url->file)+1 );
 203                 if (!server_url) {
 204                         mp_msg(MSGT_NETWORK, MSGL_ERR, "Invalid URL '%s' to proxify\n", url->file+1);
 205                         goto err_out;
 206                 }
 207                 http_set_uri( http_hdr, server_url->noauth_url );
 208         } else {
 209                 server_url = url;
 210                 http_set_uri( http_hdr, server_url->file );
 211         }
 212         if (server_url->port && server_url->port != 80)
 213             snprintf(str, sizeof(str), "Host: %s:%d", server_url->hostname, server_url->port );
 214         else
 215             snprintf(str, sizeof(str), "Host: %s", server_url->hostname );
 216         http_set_field( http_hdr, str);
 217         if (network_useragent)
 218             snprintf(str, sizeof(str), "User-Agent: %s", network_useragent);
 219         else
 220             snprintf(str, sizeof(str), "User-Agent: %s", mplayer_version);
 221         http_set_field(http_hdr, str);
 222
 223         if (network_referrer) {
 224             char *referrer = NULL;
 225             size_t len = strlen(network_referrer) + 10;
 226
 227             // Check len to ensure we don't do something really bad in case of an overflow
 228             if (len > 10)
 229                 referrer = malloc(len);
 230
 231             if (referrer == NULL) {
 232                 mp_tmsg(MSGT_NETWORK, MSGL_FATAL, "Memory allocation failed.\n");
 233             } else {
 234                 snprintf(referrer, len, "Referer: %s", network_referrer);
 235                 http_set_field(http_hdr, referrer);
 236                 free(referrer);
 237             }
 238         }
 239
 240         if( strcasecmp(url->protocol, "noicyx") )
 241             http_set_field(http_hdr, "Icy-MetaData: 1");
 242
 243         if(pos>0) {
 244         // Extend http_send_request with possibility to do partial content retrieval
 245             snprintf(str, sizeof(str), "Range: bytes=%"PRId64"-", (int64_t)pos);
 246             http_set_field(http_hdr, str);
 247         }
 248
 249         if (network_cookies_enabled) cookies_set( http_hdr, server_url->hostname, server_url->url );
 250
 251         if (network_http_header_fields) {
 252                 int i=0;
 253                 while (network_http_header_fields[i])
 254                         http_set_field(http_hdr, network_http_header_fields[i++]);
 255         }
 256
 257         http_set_field( http_hdr, "Connection: close");
 258         if (proxy)
 259                 http_add_basic_proxy_authentication(http_hdr, url->username, url->password);
 260         http_add_basic_authentication(http_hdr, server_url->username, server_url->password);
 261         if( http_build_request( http_hdr )==NULL ) {
 262                 goto err_out;
 263         }
 264
 265         if( proxy ) {
 266                 if( url->port==0 ) url->port = 8080;                    // Default port for the proxy server
 267                 fd = connect2Server( url->hostname, url->port,1 );
 268                 url_free( server_url );
 269                 server_url = NULL;
 270         } else {
 271                 if( server_url->port==0 ) server_url->port = 80;        // Default port for the web server
 272                 fd = connect2Server( server_url->hostname, server_url->port,1 );
 273         }
 274         if( fd<0 ) {
 275                 goto err_out;
 276         }
 277         mp_msg(MSGT_NETWORK,MSGL_DBG2,"Request: [%s]\n", http_hdr->buffer );
 278
 279         ret = send( fd, http_hdr->buffer, http_hdr->buffer_size, DEFAULT_SEND_FLAGS );
 280         if( ret!=(int)http_hdr->buffer_size ) {
 281                 mp_tmsg(MSGT_NETWORK,MSGL_ERR,"Error while sending HTTP request: Didn't send all the request.\n");
 282                 goto err_out;
 283         }
 284
 285         http_free( http_hdr );
 286
 287         return fd;
 288 err_out:
 289         if (fd > 0) closesocket(fd);
 290         http_free(http_hdr);
 291         if (proxy && server_url)
 292                 url_free(server_url);
 293         return -1;
 294 }
 295
 296 HTTP_header_t *
 297 http_read_response( int fd ) {
 298         HTTP_header_t *http_hdr;
 299         char response[BUFFER_SIZE];
 300         int i;
 301
 302         http_hdr = http_new_header();
 303         if( http_hdr==NULL ) {
 304                 return NULL;
 305         }
 306
 307         do {
 308                 i = recv( fd, response, BUFFER_SIZE, 0 );
 309                 if( i<0 ) {
 310                         mp_tmsg(MSGT_NETWORK,MSGL_ERR,"Read failed.\n");
 311                         http_free( http_hdr );
 312                         return NULL;
 313                 }
 314                 if( i==0 ) {
 315                         mp_tmsg(MSGT_NETWORK,MSGL_ERR,"http_read_response read 0 (i.e. EOF).\n");
 316                         http_free( http_hdr );
 317                         return NULL;
 318                 }
 319                 http_response_append( http_hdr, response, i );
 320         } while( !http_is_header_entire( http_hdr ) );
 321         if (http_response_parse( http_hdr ) < 0) {
 322                 http_free( http_hdr );
 323                 return NULL;
 324         }
 325         return http_hdr;
 326 }
 327
 328 int
 329 http_authenticate(HTTP_header_t *http_hdr, URL_t *url, int *auth_retry) {
 330         char *aut;
 331
 332 #define MPDEMUX_NW_AuthFailed _(\
 333 "Authentication failed. Please use the -user and -passwd options to provide your\n"\
 334 "username/password for a list of URLs, or form an URL like:\n"\
 335 "http://username:password@hostname/file\n")
 336
 337
 338         if( *auth_retry==1 ) {
 339                 mp_tmsg(MSGT_NETWORK,MSGL_ERR,MPDEMUX_NW_AuthFailed);
 340                 return -1;
 341         }
 342         if( *auth_retry>0 ) {
 343                 free(url->username);
 344                 url->username = NULL;
 345                 free(url->password);
 346                 url->password = NULL;
 347         }
 348
 349         aut = http_get_field(http_hdr, "WWW-Authenticate");
 350         if( aut!=NULL ) {
 351                 char *aut_space;
 352                 aut_space = strstr(aut, "realm=");
 353                 if( aut_space!=NULL ) aut_space += 6;
 354                 mp_tmsg(MSGT_NETWORK,MSGL_INFO,"Authentication required for %s\n", aut_space);
 355         } else {
 356                 mp_tmsg(MSGT_NETWORK,MSGL_INFO,"Authentication required.\n");
 357         }
 358         if( network_username ) {
 359                 url->username = strdup(network_username);
 360                 if( url->username==NULL ) {
 361                         mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 362                         return -1;
 363                 }
 364         } else {
 365                 mp_tmsg(MSGT_NETWORK,MSGL_ERR,MPDEMUX_NW_AuthFailed);
 366                 return -1;
 367         }
 368         if( network_password ) {
 369                 url->password = strdup(network_password);
 370                 if( url->password==NULL ) {
 371                         mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 372                         return -1;
 373                 }
 374         } else {
 375                 mp_tmsg(MSGT_NETWORK,MSGL_INFO,"No password provided, trying blank password.\n");
 376         }
 377         (*auth_retry)++;
 378         return 0;
 379 }
 380
 381 int
 382 http_seek( stream_t *stream, off_t pos ) {
 383         HTTP_header_t *http_hdr = NULL;
 384         int fd;
 385         if( stream==NULL ) return 0;
 386
 387         if( stream->fd>0 ) closesocket(stream->fd); // need to reconnect to seek in http-stream
 388         fd = http_send_request( stream->streaming_ctrl->url, pos );
 389         if( fd<0 ) return 0;
 390
 391         http_hdr = http_read_response( fd );
 392
 393         if( http_hdr==NULL ) return 0;
 394
 395         if( mp_msg_test(MSGT_NETWORK,MSGL_V) )
 396                 http_debug_hdr( http_hdr );
 397
 398         switch( http_hdr->status_code ) {
 399                 case 200:
 400                 case 206: // OK
 401                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
 402                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
 403                         if( http_hdr->body_size>0 ) {
 404                                 if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 405                                         http_free( http_hdr );
 406                                         return -1;
 407                                 }
 408                         }
 409                         break;
 410                 default:
 411                         mp_tmsg(MSGT_NETWORK,MSGL_ERR,"Server returns %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 412                         closesocket( fd );
 413                         fd = -1;
 414         }
 415         stream->fd = fd;
 416
 417         if( http_hdr ) {
 418                 http_free( http_hdr );
 419                 stream->streaming_ctrl->data = NULL;
 420         }
 421
 422         stream->pos=pos;
 423
 424         return 1;
 425 }
 426
 427
 428 int
 429 streaming_bufferize( streaming_ctrl_t *streaming_ctrl, char *buffer, int size) {
 430 //printf("streaming_bufferize\n");
 431         streaming_ctrl->buffer = malloc(size);
 432         if( streaming_ctrl->buffer==NULL ) {
 433                 mp_tmsg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed.\n");
 434                 return -1;
 435         }
 436         memcpy( streaming_ctrl->buffer, buffer, size );
 437         streaming_ctrl->buffer_size = size;
 438         return size;
 439 }
 440
 441 int
 442 nop_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *stream_ctrl ) {
 443         int len=0;
 444 //printf("nop_streaming_read\n");
 445         if( stream_ctrl->buffer_size!=0 ) {
 446                 int buffer_len = stream_ctrl->buffer_size-stream_ctrl->buffer_pos;
 447 //printf("%d bytes in buffer\n", stream_ctrl->buffer_size);
 448                 len = (size<buffer_len)?size:buffer_len;
 449                 memcpy( buffer, (stream_ctrl->buffer)+(stream_ctrl->buffer_pos), len );
 450                 stream_ctrl->buffer_pos += len;
 451 //printf("buffer_pos = %d\n", stream_ctrl->buffer_pos );
 452                 if( stream_ctrl->buffer_pos>=stream_ctrl->buffer_size ) {
 453                         free( stream_ctrl->buffer );
 454                         stream_ctrl->buffer = NULL;
 455                         stream_ctrl->buffer_size = 0;
 456                         stream_ctrl->buffer_pos = 0;
 457 //printf("buffer cleaned\n");
 458                 }
 459 //printf("read %d bytes from buffer\n", len );
 460         }
 461
 462         if( len<size ) {
 463                 int ret;
 464                 ret = recv( fd, buffer+len, size-len, 0 );
 465                 if( ret<0 ) {
 466                         mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_read error : %s\n",strerror(errno));
 467                         ret = 0;
 468                 } else if (ret == 0)
 469                         stream_ctrl->status = streaming_stopped_e;
 470                 len += ret;
 471 //printf("read %d bytes from network\n", len );
 472         }
 473
 474         return len;
 475 }
 476
 477 int
 478 nop_streaming_seek( int fd, off_t pos, streaming_ctrl_t *stream_ctrl ) {
 479         return -1;
 480 }
 481
 482
 483 void fixup_network_stream_cache(stream_t *stream) {
 484   struct MPOpts *opts = stream->opts;
 485   if(stream->streaming_ctrl->buffering) {
 486     if(opts->stream_cache_size<0) {
 487       // cache option not set, will use our computed value.
 488       // buffer in KBytes, *5 because the prefill is 20% of the buffer.
 489       opts->stream_cache_size = (stream->streaming_ctrl->prebuffer_size/1024)*5;
 490       if( opts->stream_cache_size<64 ) opts->stream_cache_size = 64;    // 16KBytes min buffer
 491     }
 492     mp_tmsg(MSGT_NETWORK,MSGL_INFO,"Cache size set to %d KBytes\n", opts->stream_cache_size);
 493   }
 494 }