stream/asf_streaming.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <unistd.h>
   5 #include <errno.h>
   6 #include <limits.h>
   7
   8 #include "config.h"
   9 #include "mp_msg.h"
  10 #include "help_mp.h"
  11
  12 #if HAVE_WINSOCK2_H
  13 #include <winsock2.h>
  14 #endif
  15
  16 #include "url.h"
  17 #include "http.h"
  18 #include "libmpdemux/asf.h"
  19
  20 #include "stream.h"
  21 #include "libmpdemux/demuxer.h"
  22
  23 #include "network.h"
  24 #include "tcp.h"
  25
  26 #include "libavutil/intreadwrite.h"
  27
  28 #include "libmpdemux/asfguid.h"
  29
  30 extern int network_bandwidth;
  31
  32 int asf_mmst_streaming_start( stream_t *stream );
  33 static int asf_http_streaming_start(stream_t *stream, int *demuxer_type);
  34
  35 static int asf_read_wrapper(int fd, void *buffer, int len, streaming_ctrl_t *stream_ctrl) {
  36     uint8_t *buf = buffer;
  37     while (len > 0) {
  38         int got = nop_streaming_read(fd, buf, len, stream_ctrl);
  39         if (got <= 0) {
  40             mp_msg(MSGT_NETWORK, MSGL_ERR, MSGTR_MPDEMUX_ASF_ErrReadingNetworkStream);
  41             return got;
  42         }
  43         buf += got;
  44         len -= got;
  45     }
  46     return 1;
  47 }
  48
  49 // We can try several protocol for asf streaming
  50 // * first the UDP protcol, if there is a firewall, UDP
  51 //   packets will not come back, so the mmsu will fail.
  52 // * Then we can try TCP, but if there is a proxy for
  53 //   internet connection, the TCP connection will not get
  54 //   through
  55 // * Then we can try HTTP.
  56 //
  57 // Note: Using  WMP sequence  MMSU then MMST and then HTTP.
  58
  59 static int asf_streaming_start( stream_t *stream, int *demuxer_type) {
  60     char *proto = stream->streaming_ctrl->url->protocol;
  61     int fd = -1;
  62     int port = stream->streaming_ctrl->url->port;
  63
  64     // Is protocol mms or mmsu?
  65     if (!strcasecmp(proto, "mmsu") || !strcasecmp(proto, "mms"))
  66     {
  67                 mp_msg(MSGT_NETWORK,MSGL_V,"Trying ASF/UDP...\n");
  68                 //fd = asf_mmsu_streaming_start( stream );
  69                 if( fd>-1 ) return fd; //mmsu support is not implemented yet - using this code
  70                 mp_msg(MSGT_NETWORK,MSGL_V,"  ===> ASF/UDP failed\n");
  71                 if( fd==-2 ) return -1;
  72         }
  73
  74     //Is protocol mms or mmst?
  75     if (!strcasecmp(proto, "mmst") || !strcasecmp(proto, "mms"))
  76     {
  77                 mp_msg(MSGT_NETWORK,MSGL_V,"Trying ASF/TCP...\n");
  78                 fd = asf_mmst_streaming_start( stream );
  79                 stream->streaming_ctrl->url->port = port;
  80                 if( fd>-1 ) return fd;
  81                 mp_msg(MSGT_NETWORK,MSGL_V,"  ===> ASF/TCP failed\n");
  82                 if( fd==-2 ) return -1;
  83         }
  84
  85     //Is protocol http, http_proxy, or mms?
  86     if (!strcasecmp(proto, "http_proxy") || !strcasecmp(proto, "http") ||
  87         !strcasecmp(proto, "mms") || !strcasecmp(proto, "mmshttp"))
  88     {
  89                 mp_msg(MSGT_NETWORK,MSGL_V,"Trying ASF/HTTP...\n");
  90                 fd = asf_http_streaming_start( stream, demuxer_type );
  91                 stream->streaming_ctrl->url->port = port;
  92                 if( fd>-1 ) return fd;
  93                 mp_msg(MSGT_NETWORK,MSGL_V,"  ===> ASF/HTTP failed\n");
  94                 if( fd==-2 ) return -1;
  95         }
  96
  97     //everything failed
  98         return -1;
  99 }
 100
 101 static int asf_streaming(ASF_stream_chunck_t *stream_chunck, int *drop_packet ) {
 102 /*
 103 printf("ASF stream chunck size=%d\n", stream_chunck->size);
 104 printf("length: %d\n", length );
 105 printf("0x%02X\n", stream_chunck->type );
 106 */
 107         if( drop_packet!=NULL ) *drop_packet = 0;
 108
 109         if( stream_chunck->size<8 ) {
 110                 mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_StreamChunkSize2Small, stream_chunck->size);
 111                 return -1;
 112         }
 113         if( stream_chunck->size!=stream_chunck->size_confirm ) {
 114                 mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_SizeConfirmMismatch, stream_chunck->size, stream_chunck->size_confirm);
 115                 return -1;
 116         }
 117 /*
 118         printf("  type: 0x%02X\n", stream_chunck->type );
 119         printf("  size: %d (0x%02X)\n", stream_chunck->size, stream_chunck->size );
 120         printf("  sequence_number: 0x%04X\n", stream_chunck->sequence_number );
 121         printf("  unknown: 0x%02X\n", stream_chunck->unknown );
 122         printf("  size_confirm: 0x%02X\n", stream_chunck->size_confirm );
 123 */
 124         switch(stream_chunck->type) {
 125                 case ASF_STREAMING_CLEAR:       // $C   Clear ASF configuration
 126                         mp_msg(MSGT_NETWORK,MSGL_V,"=====> Clearing ASF stream configuration!\n");
 127                         if( drop_packet!=NULL ) *drop_packet = 1;
 128                         return stream_chunck->size;
 129                         break;
 130                 case ASF_STREAMING_DATA:        // $D   Data follows
 131 //                      printf("=====> Data follows\n");
 132                         break;
 133                 case ASF_STREAMING_END_TRANS:   // $E   Transfer complete
 134                         mp_msg(MSGT_NETWORK,MSGL_V,"=====> Transfer complete\n");
 135                         if( drop_packet!=NULL ) *drop_packet = 1;
 136                         return stream_chunck->size;
 137                         break;
 138                 case ASF_STREAMING_HEADER:      // $H   ASF header chunk follows
 139                         mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF header chunk follows\n");
 140                         break;
 141                 default:
 142                         mp_msg(MSGT_NETWORK,MSGL_V,"=====> Unknown stream type 0x%x\n", stream_chunck->type );
 143         }
 144         return stream_chunck->size+4;
 145 }
 146
 147 extern int audio_id;
 148 extern int video_id;
 149
 150 static void close_s(stream_t *stream) {
 151         close(stream->fd);
 152         stream->fd=-1;
 153 }
 154
 155 static int max_idx(int s_count, int *s_rates, int bound) {
 156   int i, best = -1, rate = -1;
 157   for (i = 0; i < s_count; i++) {
 158     if (s_rates[i] > rate && s_rates[i] <= bound) {
 159       rate = s_rates[i];
 160       best = i;
 161     }
 162   }
 163   return best;
 164 }
 165
 166 static int asf_streaming_parse_header(int fd, streaming_ctrl_t* streaming_ctrl) {
 167   ASF_stream_chunck_t chunk;
 168   asf_http_streaming_ctrl_t* asf_ctrl = streaming_ctrl->data;
 169   char* buffer=NULL, *chunk_buffer=NULL;
 170   int i,r,size,pos = 0;
 171   int start;
 172   int buffer_size = 0;
 173   int chunk_size2read = 0;
 174   int bw = streaming_ctrl->bandwidth;
 175   int *v_rates = NULL, *a_rates = NULL;
 176   int v_rate = 0, a_rate = 0, a_idx = -1, v_idx = -1;
 177
 178   if(asf_ctrl == NULL) return -1;
 179
 180         // The ASF header can be in several network chunks. For example if the content description
 181         // is big, the ASF header will be split in 2 network chunk.
 182         // So we need to retrieve all the chunk before starting to parse the header.
 183   do {
 184           if (asf_read_wrapper(fd, &chunk, sizeof(ASF_stream_chunck_t), streaming_ctrl) <= 0)
 185             return -1;
 186           // Endian handling of the stream chunk
 187           le2me_ASF_stream_chunck_t(&chunk);
 188           size = asf_streaming( &chunk, &r) - sizeof(ASF_stream_chunck_t);
 189           if(r) mp_msg(MSGT_NETWORK,MSGL_WARN,MSGTR_MPDEMUX_ASF_WarnDropHeader);
 190           if(size < 0){
 191             mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrorParsingChunkHeader);
 192                 return -1;
 193           }
 194           if (chunk.type != ASF_STREAMING_HEADER) {
 195             mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_NoHeaderAtFirstChunk);
 196             return -1;
 197           }
 198
 199           // audit: do not overflow buffer_size
 200           if (size > SIZE_MAX - buffer_size) return -1;
 201           buffer = malloc(size+buffer_size);
 202           if(buffer == NULL) {
 203             mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MPDEMUX_ASF_BufferMallocFailed,size+buffer_size);
 204             return -1;
 205           }
 206           if( chunk_buffer!=NULL ) {
 207                 memcpy( buffer, chunk_buffer, buffer_size );
 208                 free( chunk_buffer );
 209           }
 210           chunk_buffer = buffer;
 211           buffer += buffer_size;
 212           buffer_size += size;
 213
 214           if (asf_read_wrapper(fd, buffer, size, streaming_ctrl) <= 0)
 215             return -1;
 216
 217           if( chunk_size2read==0 ) {
 218                 ASF_header_t *asfh = (ASF_header_t *)buffer;
 219                 if(size < (int)sizeof(ASF_header_t)) {
 220                     mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrChunk2Small);
 221                     return -1;
 222                 } else mp_msg(MSGT_NETWORK,MSGL_DBG2,"Got chunk\n");
 223                 chunk_size2read = AV_RL64(&asfh->objh.size);
 224                 mp_msg(MSGT_NETWORK,MSGL_DBG2,"Size 2 read=%d\n", chunk_size2read);
 225           }
 226   } while( buffer_size<chunk_size2read);
 227   buffer = chunk_buffer;
 228   size = buffer_size;
 229
 230   start = sizeof(ASF_header_t);
 231
 232   pos = find_asf_guid(buffer, asf_file_header_guid, start, size);
 233   if (pos >= 0) {
 234     ASF_file_header_t *fileh = (ASF_file_header_t *) &buffer[pos];
 235     pos += sizeof(ASF_file_header_t);
 236     if (pos > size) goto len_err_out;
 237 /*
 238       if(fileh.packetsize != fileh.packetsize2) {
 239         printf("Error packetsize check don't match\n");
 240         return -1;
 241       }
 242 */
 243       asf_ctrl->packet_size = AV_RL32(&fileh->max_packet_size);
 244       // before playing.
 245       // preroll: time in ms to bufferize before playing
 246       streaming_ctrl->prebuffer_size = (unsigned int)(((double)fileh->preroll/1000.0)*((double)fileh->max_bitrate/8.0));
 247   }
 248
 249   pos = start;
 250   while ((pos = find_asf_guid(buffer, asf_stream_header_guid, pos, size)) >= 0)
 251   {
 252     ASF_stream_header_t *streamh = (ASF_stream_header_t *)&buffer[pos];
 253     pos += sizeof(ASF_stream_header_t);
 254     if (pos > size) goto len_err_out;
 255       switch(ASF_LOAD_GUID_PREFIX(streamh->type)) {
 256       case 0xF8699E40 : // audio stream
 257         if(asf_ctrl->audio_streams == NULL){
 258           asf_ctrl->audio_streams = malloc(sizeof(int));
 259           asf_ctrl->n_audio = 1;
 260         } else {
 261           asf_ctrl->n_audio++;
 262           asf_ctrl->audio_streams = realloc(asf_ctrl->audio_streams,
 263                                                      asf_ctrl->n_audio*sizeof(int));
 264         }
 265         asf_ctrl->audio_streams[asf_ctrl->n_audio-1] = AV_RL16(&streamh->stream_no);
 266         break;
 267       case 0xBC19EFC0 : // video stream
 268         if(asf_ctrl->video_streams == NULL){
 269           asf_ctrl->video_streams = malloc(sizeof(int));
 270           asf_ctrl->n_video = 1;
 271         } else {
 272           asf_ctrl->n_video++;
 273           asf_ctrl->video_streams = realloc(asf_ctrl->video_streams,
 274                                                      asf_ctrl->n_video*sizeof(int));
 275         }
 276         asf_ctrl->video_streams[asf_ctrl->n_video-1] = AV_RL16(&streamh->stream_no);
 277         break;
 278       }
 279   }
 280
 281   // always allocate to avoid lots of ifs later
 282   v_rates = calloc(asf_ctrl->n_video, sizeof(int));
 283   a_rates = calloc(asf_ctrl->n_audio, sizeof(int));
 284
 285   pos = find_asf_guid(buffer, asf_stream_group_guid, start, size);
 286   if (pos >= 0) {
 287     // stream bitrate properties object
 288         int stream_count;
 289         char *ptr = &buffer[pos];
 290         char *end = &buffer[size];
 291
 292         mp_msg(MSGT_NETWORK, MSGL_V, "Stream bitrate properties object\n");
 293                 if (ptr + 2 > end) goto len_err_out;
 294                 stream_count = AV_RL16(ptr);
 295                 ptr += 2;
 296                 mp_msg(MSGT_NETWORK, MSGL_V, " stream count=[0x%x][%u]\n",
 297                         stream_count, stream_count );
 298                 for( i=0 ; i<stream_count ; i++ ) {
 299                         uint32_t rate;
 300                         int id;
 301                         int j;
 302                         if (ptr + 6 > end) goto len_err_out;
 303                         id = AV_RL16(ptr);
 304                         ptr += 2;
 305                         rate = AV_RL32(ptr);
 306                         ptr += 4;
 307                         mp_msg(MSGT_NETWORK, MSGL_V,
 308                                 "  stream id=[0x%x][%u]\n", id, id);
 309                         mp_msg(MSGT_NETWORK, MSGL_V,
 310                                 "  max bitrate=[0x%x][%u]\n", rate, rate);
 311                         for (j = 0; j < asf_ctrl->n_video; j++) {
 312                           if (id == asf_ctrl->video_streams[j]) {
 313                             mp_msg(MSGT_NETWORK, MSGL_V, "  is video stream\n");
 314                             v_rates[j] = rate;
 315                             break;
 316                           }
 317                         }
 318                         for (j = 0; j < asf_ctrl->n_audio; j++) {
 319                           if (id == asf_ctrl->audio_streams[j]) {
 320                             mp_msg(MSGT_NETWORK, MSGL_V, "  is audio stream\n");
 321                             a_rates[j] = rate;
 322                             break;
 323                           }
 324                         }
 325                 }
 326   }
 327   free(buffer);
 328
 329   // automatic stream selection based on bandwidth
 330   if (bw == 0) bw = INT_MAX;
 331   mp_msg(MSGT_NETWORK, MSGL_V, "Max bandwidth set to %d\n", bw);
 332
 333   if (asf_ctrl->n_audio) {
 334     // find lowest-bitrate audio stream
 335     a_rate = a_rates[0];
 336     a_idx = 0;
 337     for (i = 0; i < asf_ctrl->n_audio; i++) {
 338       if (a_rates[i] < a_rate) {
 339         a_rate = a_rates[i];
 340         a_idx = i;
 341       }
 342     }
 343     if (max_idx(asf_ctrl->n_video, v_rates, bw - a_rate) < 0) {
 344       // both audio and video are not possible, try video only next
 345       a_idx = -1;
 346       a_rate = 0;
 347     }
 348   }
 349   // find best video stream
 350   v_idx = max_idx(asf_ctrl->n_video, v_rates, bw - a_rate);
 351   if (v_idx >= 0)
 352     v_rate = v_rates[v_idx];
 353
 354   // find best audio stream
 355   a_idx = max_idx(asf_ctrl->n_audio, a_rates, bw - v_rate);
 356
 357   free(v_rates);
 358   free(a_rates);
 359
 360   if (a_idx < 0 && v_idx < 0) {
 361     mp_msg(MSGT_NETWORK, MSGL_FATAL, MSGTR_MPDEMUX_ASF_Bandwidth2SmallCannotPlay);
 362     return -1;
 363   }
 364
 365   if (audio_id > 0)
 366     // a audio stream was forced
 367     asf_ctrl->audio_id = audio_id;
 368   else if (a_idx >= 0)
 369     asf_ctrl->audio_id = asf_ctrl->audio_streams[a_idx];
 370   else if (asf_ctrl->n_audio) {
 371     mp_msg(MSGT_NETWORK, MSGL_WARN, MSGTR_MPDEMUX_ASF_Bandwidth2SmallDeselectedAudio);
 372     audio_id = -2;
 373   }
 374
 375   if (video_id > 0)
 376     // a video stream was forced
 377     asf_ctrl->video_id = video_id;
 378   else if (v_idx >= 0)
 379     asf_ctrl->video_id = asf_ctrl->video_streams[v_idx];
 380   else if (asf_ctrl->n_video) {
 381     mp_msg(MSGT_NETWORK, MSGL_WARN, MSGTR_MPDEMUX_ASF_Bandwidth2SmallDeselectedVideo);
 382     video_id = -2;
 383   }
 384
 385   return 1;
 386
 387 len_err_out:
 388   mp_msg(MSGT_NETWORK, MSGL_FATAL, MSGTR_MPDEMUX_ASF_InvalidLenInHeader);
 389   if (buffer) free(buffer);
 390   if (v_rates) free(v_rates);
 391   if (a_rates) free(a_rates);
 392   return -1;
 393 }
 394
 395 static int asf_http_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *streaming_ctrl ) {
 396   static ASF_stream_chunck_t chunk;
 397   int read,chunk_size = 0;
 398   static int rest = 0, drop_chunk = 0, waiting = 0;
 399   asf_http_streaming_ctrl_t *asf_http_ctrl = (asf_http_streaming_ctrl_t*)streaming_ctrl->data;
 400
 401   while(1) {
 402     if (rest == 0 && waiting == 0) {
 403       if (asf_read_wrapper(fd, &chunk, sizeof(ASF_stream_chunck_t), streaming_ctrl) <= 0)
 404         return -1;
 405
 406       // Endian handling of the stream chunk
 407       le2me_ASF_stream_chunck_t(&chunk);
 408       chunk_size = asf_streaming( &chunk, &drop_chunk );
 409       if(chunk_size < 0) {
 410         mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrorParsingChunkHeader);
 411         return -1;
 412       }
 413       chunk_size -= sizeof(ASF_stream_chunck_t);
 414
 415       if(chunk.type != ASF_STREAMING_HEADER && (!drop_chunk)) {
 416         if (asf_http_ctrl->packet_size < chunk_size) {
 417           mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ErrChunkBiggerThanPacket);
 418           return -1;
 419         }
 420         waiting = asf_http_ctrl->packet_size;
 421       } else {
 422         waiting = chunk_size;
 423       }
 424
 425     } else if (rest){
 426       chunk_size = rest;
 427       rest = 0;
 428     }
 429
 430     read = 0;
 431     if ( waiting >= chunk_size) {
 432       if (chunk_size > size){
 433         rest = chunk_size - size;
 434         chunk_size = size;
 435       }
 436       if (asf_read_wrapper(fd, buffer, chunk_size, streaming_ctrl) <= 0)
 437         return -1;
 438       read = chunk_size;
 439       waiting -= read;
 440       if (drop_chunk) continue;
 441     }
 442     if (rest == 0 && waiting > 0 && size-read > 0) {
 443       int s = FFMIN(waiting,size-read);
 444       memset(buffer+read,0,s);
 445       waiting -= s;
 446       read += s;
 447     }
 448     break;
 449   }
 450
 451   return read;
 452 }
 453
 454 static int asf_http_streaming_seek( int fd, off_t pos, streaming_ctrl_t *streaming_ctrl ) {
 455         return -1;
 456         // to shut up gcc warning
 457         fd++;
 458         pos++;
 459         streaming_ctrl=NULL;
 460 }
 461
 462 static int asf_header_check( HTTP_header_t *http_hdr ) {
 463         ASF_obj_header_t *objh;
 464         if( http_hdr==NULL ) return -1;
 465         if( http_hdr->body==NULL || http_hdr->body_size<sizeof(ASF_obj_header_t) ) return -1;
 466
 467         objh = (ASF_obj_header_t*)http_hdr->body;
 468         if( ASF_LOAD_GUID_PREFIX(objh->guid)==0x75B22630 ) return 0;
 469         return -1;
 470 }
 471
 472 static int asf_http_streaming_type(char *content_type, char *features, HTTP_header_t *http_hdr ) {
 473         if( content_type==NULL ) return ASF_Unknown_e;
 474         if(     !strcasecmp(content_type, "application/octet-stream") ||
 475                 !strcasecmp(content_type, "application/vnd.ms.wms-hdr.asfv1") ||        // New in Corona, first request
 476                 !strcasecmp(content_type, "application/x-mms-framed") ||                // New in Corana, second request
 477                 !strcasecmp(content_type, "video/x-ms-asf")) {
 478
 479                 if( strstr(features, "broadcast") ) {
 480                         mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Live stream\n");
 481                         return ASF_Live_e;
 482                 } else {
 483                         mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Prerecorded\n");
 484                         return ASF_Prerecorded_e;
 485                 }
 486         } else {
 487                 // Ok in a perfect world, web servers should be well configured
 488                 // so we could used mime type to know the stream type,
 489                 // but guess what? All of them are not well configured.
 490                 // So we have to check for an asf header :(, but it works :p
 491                 if( http_hdr->body_size>sizeof(ASF_obj_header_t) ) {
 492                         if( asf_header_check( http_hdr )==0 ) {
 493                                 mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Plain text\n");
 494                                 return ASF_PlainText_e;
 495                         } else if( (!strcasecmp(content_type, "text/html")) ) {
 496                                 mp_msg(MSGT_NETWORK,MSGL_V,"=====> HTML, MPlayer is not a browser...yet!\n");
 497                                 return ASF_Unknown_e;
 498                         } else {
 499                                 mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Redirector\n");
 500                                 return ASF_Redirector_e;
 501                         }
 502                 } else {
 503                         if(     (!strcasecmp(content_type, "audio/x-ms-wax")) ||
 504                                 (!strcasecmp(content_type, "audio/x-ms-wma")) ||
 505                                 (!strcasecmp(content_type, "video/x-ms-asf")) ||
 506                                 (!strcasecmp(content_type, "video/x-ms-afs")) ||
 507                                 (!strcasecmp(content_type, "video/x-ms-wmv")) ||
 508                                 (!strcasecmp(content_type, "video/x-ms-wma")) ) {
 509                                 mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ASFRedirector);
 510                                 return ASF_Redirector_e;
 511                         } else if( !strcasecmp(content_type, "text/plain") ) {
 512                                 mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF Plain text\n");
 513                                 return ASF_PlainText_e;
 514                         } else {
 515                                 mp_msg(MSGT_NETWORK,MSGL_V,"=====> ASF unknown content-type: %s\n", content_type );
 516                                 return ASF_Unknown_e;
 517                         }
 518                 }
 519         }
 520         return ASF_Unknown_e;
 521 }
 522
 523 static HTTP_header_t *asf_http_request(streaming_ctrl_t *streaming_ctrl) {
 524         HTTP_header_t *http_hdr;
 525         URL_t *url = NULL;
 526         URL_t *server_url = NULL;
 527         asf_http_streaming_ctrl_t *asf_http_ctrl;
 528         char str[250];
 529         char *ptr;
 530         int i, enable;
 531
 532         int offset_hi=0, offset_lo=0, length=0;
 533         int asf_nb_stream=0, stream_id;
 534
 535         // Sanity check
 536         if( streaming_ctrl==NULL ) return NULL;
 537         url = streaming_ctrl->url;
 538         asf_http_ctrl = (asf_http_streaming_ctrl_t*)streaming_ctrl->data;
 539         if( url==NULL || asf_http_ctrl==NULL ) return NULL;
 540
 541         // Common header for all requests.
 542         http_hdr = http_new_header();
 543         http_set_field( http_hdr, "Accept: */*" );
 544         http_set_field( http_hdr, "User-Agent: NSPlayer/4.1.0.3856" );
 545         http_add_basic_authentication( http_hdr, url->username, url->password );
 546
 547         // Check if we are using a proxy
 548         if( !strcasecmp( url->protocol, "http_proxy" ) ) {
 549                 server_url = url_new( (url->file)+1 );
 550                 if( server_url==NULL ) {
 551                         mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_InvalidProxyURL);
 552                         http_free( http_hdr );
 553                         return NULL;
 554                 }
 555                 http_set_uri( http_hdr, server_url->url );
 556                 sprintf( str, "Host: %.220s:%d", server_url->hostname, server_url->port );
 557                 url_free( server_url );
 558         } else {
 559                 http_set_uri( http_hdr, url->file );
 560                 sprintf( str, "Host: %.220s:%d", url->hostname, url->port );
 561         }
 562
 563         http_set_field( http_hdr, str );
 564         http_set_field( http_hdr, "Pragma: xClientGUID={c77e7400-738a-11d2-9add-0020af0a3278}" );
 565         sprintf(str,
 566                 "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=%u:%u,request-context=%d,max-duration=%u",
 567                 offset_hi, offset_lo, asf_http_ctrl->request, length );
 568         http_set_field( http_hdr, str );
 569
 570         switch( asf_http_ctrl->streaming_type ) {
 571                 case ASF_Live_e:
 572                 case ASF_Prerecorded_e:
 573                         http_set_field( http_hdr, "Pragma: xPlayStrm=1" );
 574                         ptr = str;
 575                         ptr += sprintf( ptr, "Pragma: stream-switch-entry=");
 576                         if(asf_http_ctrl->n_audio > 0) {
 577                                 for( i=0; i<asf_http_ctrl->n_audio ; i++ ) {
 578                                         stream_id = asf_http_ctrl->audio_streams[i];
 579                                         if(stream_id == asf_http_ctrl->audio_id) {
 580                                                 enable = 0;
 581                                         } else {
 582                                                 enable = 2;
 583                                                 continue;
 584                                         }
 585                                         asf_nb_stream++;
 586                                         ptr += sprintf(ptr, "ffff:%x:%d ", stream_id, enable);
 587                                 }
 588                         }
 589                         if(asf_http_ctrl->n_video > 0) {
 590                                 for( i=0; i<asf_http_ctrl->n_video ; i++ ) {
 591                                         stream_id = asf_http_ctrl->video_streams[i];
 592                                         if(stream_id == asf_http_ctrl->video_id) {
 593                                                 enable = 0;
 594                                         } else {
 595                                                 enable = 2;
 596                                                 continue;
 597                                         }
 598                                         asf_nb_stream++;
 599                                         ptr += sprintf(ptr, "ffff:%x:%d ", stream_id, enable);
 600                                 }
 601                         }
 602                         http_set_field( http_hdr, str );
 603                         sprintf( str, "Pragma: stream-switch-count=%d", asf_nb_stream );
 604                         http_set_field( http_hdr, str );
 605                         break;
 606                 case ASF_Redirector_e:
 607                         break;
 608                 case ASF_Unknown_e:
 609                         // First request goes here.
 610                         break;
 611                 default:
 612                         mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_UnknownASFStreamType);
 613         }
 614
 615         http_set_field( http_hdr, "Connection: Close" );
 616         http_build_request( http_hdr );
 617
 618         return http_hdr;
 619 }
 620
 621 static int asf_http_parse_response(asf_http_streaming_ctrl_t *asf_http_ctrl, HTTP_header_t *http_hdr ) {
 622         char *content_type, *pragma;
 623         char features[64] = "\0";
 624         size_t len;
 625         if( http_response_parse(http_hdr)<0 ) {
 626                 mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_Failed2ParseHTTPResponse);
 627                 return -1;
 628         }
 629         switch( http_hdr->status_code ) {
 630                 case 200:
 631                         break;
 632                 case 401: // Authentication required
 633                         return ASF_Authenticate_e;
 634                 default:
 635                         mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_ServerReturn, http_hdr->status_code, http_hdr->reason_phrase);
 636                         return -1;
 637         }
 638
 639         content_type = http_get_field( http_hdr, "Content-Type");
 640 //printf("Content-Type: [%s]\n", content_type);
 641
 642         pragma = http_get_field( http_hdr, "Pragma");
 643         while( pragma!=NULL ) {
 644                 char *comma_ptr=NULL;
 645                 char *end;
 646 //printf("Pragma: [%s]\n", pragma );
 647                 // The pragma line can get severals attributes
 648                 // separeted with a comma ','.
 649                 do {
 650                         if( !strncasecmp( pragma, "features=", 9) ) {
 651                                 pragma += 9;
 652                                 end = strstr( pragma, "," );
 653                                 if( end==NULL ) {
 654                                   len = strlen(pragma);
 655                                 } else {
 656                                   len = (unsigned int)(end-pragma);
 657                                 }
 658                                 if(len > sizeof(features) - 1) {
 659                                   mp_msg(MSGT_NETWORK,MSGL_WARN,MSGTR_MPDEMUX_ASF_ASFHTTPParseWarnCuttedPragma,pragma,len,sizeof(features) - 1);
 660                                   len = sizeof(features) - 1;
 661                                 }
 662                                 strncpy( features, pragma, len );
 663                                 features[len]='\0';
 664                                 break;
 665                         }
 666                         comma_ptr = strstr( pragma, "," );
 667                         if( comma_ptr!=NULL ) {
 668                                 pragma = comma_ptr+1;
 669                                 if( pragma[0]==' ' ) pragma++;
 670                         }
 671                 } while( comma_ptr!=NULL );
 672                 pragma = http_get_next_field( http_hdr );
 673         }
 674         asf_http_ctrl->streaming_type = asf_http_streaming_type( content_type, features, http_hdr );
 675         return 0;
 676 }
 677
 678 static int asf_http_streaming_start( stream_t *stream, int *demuxer_type ) {
 679         HTTP_header_t *http_hdr=NULL;
 680         URL_t *url = stream->streaming_ctrl->url;
 681         asf_http_streaming_ctrl_t *asf_http_ctrl;
 682         char buffer[BUFFER_SIZE];
 683         int i, ret;
 684         int fd = stream->fd;
 685         int done;
 686         int auth_retry = 0;
 687
 688         asf_http_ctrl = malloc(sizeof(asf_http_streaming_ctrl_t));
 689         if( asf_http_ctrl==NULL ) {
 690                 mp_msg(MSGT_NETWORK,MSGL_FATAL,MSGTR_MemAllocFailed);
 691                 return -1;
 692         }
 693         asf_http_ctrl->streaming_type = ASF_Unknown_e;
 694         asf_http_ctrl->request = 1;
 695         asf_http_ctrl->audio_streams = asf_http_ctrl->video_streams = NULL;
 696         asf_http_ctrl->n_audio = asf_http_ctrl->n_video = 0;
 697         stream->streaming_ctrl->data = (void*)asf_http_ctrl;
 698
 699         do {
 700                 done = 1;
 701                 if( fd>0 ) closesocket( fd );
 702
 703                 if( !strcasecmp( url->protocol, "http_proxy" ) ) {
 704                         if( url->port==0 ) url->port = 8080;
 705                 } else {
 706                         if( url->port==0 ) url->port = 80;
 707                 }
 708                 fd = connect2Server( url->hostname, url->port, 1);
 709                 if( fd<0 ) return fd;
 710
 711                 http_hdr = asf_http_request( stream->streaming_ctrl );
 712                 mp_msg(MSGT_NETWORK,MSGL_DBG2,"Request [%s]\n", http_hdr->buffer );
 713                 for(i=0; i < (int)http_hdr->buffer_size ; ) {
 714                         int r = send( fd, http_hdr->buffer+i, http_hdr->buffer_size-i, 0 );
 715                         if(r <0) {
 716                                 mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_SocketWriteError,strerror(errno));
 717                                 goto err_out;
 718                         }
 719                         i += r;
 720                 }
 721                 http_free( http_hdr );
 722                 http_hdr = http_new_header();
 723                 do {
 724                         i = recv( fd, buffer, BUFFER_SIZE, 0 );
 725 //printf("read: %d\n", i );
 726                         if( i<=0 ) {
 727                                 perror("read");
 728                                 goto err_out;
 729                         }
 730                         http_response_append( http_hdr, buffer, i );
 731                 } while( !http_is_header_entire( http_hdr ) );
 732                 if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
 733                         http_hdr->buffer[http_hdr->buffer_size]='\0';
 734                         mp_msg(MSGT_NETWORK,MSGL_DBG2,"Response [%s]\n", http_hdr->buffer );
 735                 }
 736                 ret = asf_http_parse_response(asf_http_ctrl, http_hdr);
 737                 if( ret<0 ) {
 738                         mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_HeaderParseFailed);
 739                         goto err_out;
 740                 }
 741                 switch( asf_http_ctrl->streaming_type ) {
 742                         case ASF_Live_e:
 743                         case ASF_Prerecorded_e:
 744                         case ASF_PlainText_e:
 745                                 if( http_hdr->body_size>0 ) {
 746                                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 747                                                 goto err_out;
 748                                         }
 749                                 }
 750                                 if( asf_http_ctrl->request==1 ) {
 751                                         if( asf_http_ctrl->streaming_type!=ASF_PlainText_e ) {
 752                                                 // First request, we only got the ASF header.
 753                                                 ret = asf_streaming_parse_header(fd,stream->streaming_ctrl);
 754                                                 if(ret < 0) goto err_out;
 755                                                 if(asf_http_ctrl->n_audio == 0 && asf_http_ctrl->n_video == 0) {
 756                                                         mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_NoStreamFound);
 757                                                         goto err_out;
 758                                                 }
 759                                                 asf_http_ctrl->request++;
 760                                                 done = 0;
 761                                         } else {
 762                                                 done = 1;
 763                                         }
 764                                 }
 765                                 break;
 766                         case ASF_Redirector_e:
 767                                 if( http_hdr->body_size>0 ) {
 768                                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 769                                                 goto err_out;
 770                                         }
 771                                 }
 772                                 *demuxer_type = DEMUXER_TYPE_PLAYLIST;
 773                                 done = 1;
 774                                 break;
 775                         case ASF_Authenticate_e:
 776                                 if( http_authenticate( http_hdr, url, &auth_retry)<0 ) return -1;
 777                                 asf_http_ctrl->streaming_type = ASF_Unknown_e;
 778                                 done = 0;
 779                                 break;
 780                         case ASF_Unknown_e:
 781                         default:
 782                                 mp_msg(MSGT_NETWORK,MSGL_ERR,MSGTR_MPDEMUX_ASF_UnknownASFStreamingType);
 783                                 goto err_out;
 784                 }
 785         // Check if we got a redirect.
 786         } while(!done);
 787
 788         stream->fd = fd;
 789         if( asf_http_ctrl->streaming_type==ASF_PlainText_e || asf_http_ctrl->streaming_type==ASF_Redirector_e ) {
 790                 stream->streaming_ctrl->streaming_read = nop_streaming_read;
 791                 stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
 792         } else {
 793                 stream->streaming_ctrl->streaming_read = asf_http_streaming_read;
 794                 stream->streaming_ctrl->streaming_seek = asf_http_streaming_seek;
 795                 stream->streaming_ctrl->buffering = 1;
 796         }
 797         stream->streaming_ctrl->status = streaming_playing_e;
 798         stream->close = close_s;
 799
 800         http_free( http_hdr );
 801         return 0;
 802
 803 err_out:
 804         if (fd > 0)
 805                 closesocket(fd);
 806         stream->fd = -1;
 807         http_free(http_hdr);
 808         return -1;
 809 }
 810
 811 static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
 812         URL_t *url;
 813
 814         stream->streaming_ctrl = streaming_ctrl_new();
 815         if( stream->streaming_ctrl==NULL ) {
 816                 return STREAM_ERROR;
 817         }
 818         stream->streaming_ctrl->bandwidth = network_bandwidth;
 819         url = url_new(stream->url);
 820         stream->streaming_ctrl->url = check4proxies(url);
 821         url_free(url);
 822
 823         mp_msg(MSGT_OPEN, MSGL_INFO, MSGTR_MPDEMUX_ASF_InfoStreamASFURL, stream->url);
 824         if((!strncmp(stream->url, "http", 4)) && (*file_format!=DEMUXER_TYPE_ASF && *file_format!=DEMUXER_TYPE_UNKNOWN)) {
 825                 streaming_ctrl_free(stream->streaming_ctrl);
 826                 stream->streaming_ctrl = NULL;
 827                 return STREAM_UNSUPPORTED;
 828         }
 829
 830         if(asf_streaming_start(stream, file_format) < 0) {
 831                 mp_msg(MSGT_OPEN, MSGL_ERR, MSGTR_MPDEMUX_ASF_StreamingFailed);
 832                 streaming_ctrl_free(stream->streaming_ctrl);
 833                 stream->streaming_ctrl = NULL;
 834                 return STREAM_UNSUPPORTED;
 835         }
 836
 837         if (*file_format != DEMUXER_TYPE_PLAYLIST)
 838                 *file_format = DEMUXER_TYPE_ASF;
 839         stream->type = STREAMTYPE_STREAM;
 840         fixup_network_stream_cache(stream);
 841         return STREAM_OK;
 842 }
 843
 844 const stream_info_t stream_info_asf = {
 845   "mms and mms over http streaming",
 846   "null",
 847   "Bertrand, Reimar Doeffinger, Albeu",
 848   "originally based on work by Majormms (is that code still there?)",
 849   open_s,
 850   {"mms", "mmsu", "mmst", "http", "http_proxy", "mmshttp", NULL},
 851   NULL,
 852   0 // Urls are an option string
 853 };
 854