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