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