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