stream/http.c

   1 /*
   2  * HTTP Helper
   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 "config.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29
  30 #if !HAVE_WINSOCK2_H
  31 #else
  32 #include <winsock2.h>
  33 #include <ws2tcpip.h>
  34 #endif
  35
  36 #include "http.h"
  37 #include "url.h"
  38 #include "mp_msg.h"
  39
  40 #include "stream.h"
  41 #include "libmpdemux/demuxer.h"
  42 #include "network.h"
  43
  44
  45 extern const mime_struct_t mime_type_table[];
  46 extern int stream_cache_size;
  47 extern int network_bandwidth;
  48
  49 typedef struct {
  50   unsigned metaint;
  51   unsigned metapos;
  52   int is_ultravox;
  53 } scast_data_t;
  54
  55 /**
  56  * \brief first read any data from sc->buffer then from fd
  57  * \param fd file descriptor to read data from
  58  * \param buffer buffer to read into
  59  * \param len how many bytes to read
  60  * \param sc streaming control containing buffer to read from first
  61  * \return len unless there is a read error or eof
  62  */
  63 static unsigned my_read(int fd, char *buffer, int len, streaming_ctrl_t *sc) {
  64   unsigned pos = 0;
  65   unsigned cp_len = sc->buffer_size - sc->buffer_pos;
  66   if (cp_len > len)
  67     cp_len = len;
  68   memcpy(buffer, &sc->buffer[sc->buffer_pos], cp_len);
  69   sc->buffer_pos += cp_len;
  70   pos += cp_len;
  71   while (pos < len) {
  72     int ret = recv(fd, &buffer[pos], len - pos, 0);
  73     if (ret <= 0)
  74       break;
  75     pos += ret;
  76   }
  77   return pos;
  78 }
  79
  80 /**
  81  * \brief read and process (i.e. discard *g*) a block of ultravox metadata
  82  * \param fd file descriptor to read from
  83  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
  84  * \return number of real data before next metadata block starts or 0 on error
  85  */
  86 static unsigned uvox_meta_read(int fd, streaming_ctrl_t *sc) {
  87   unsigned metaint;
  88   unsigned char info[6] = {0, 0, 0, 0, 0, 0};
  89   int info_read;
  90   do {
  91     info_read = my_read(fd, info, 1, sc);
  92     if (info[0] == 0x00)
  93       info_read = my_read(fd, info, 6, sc);
  94     else
  95       info_read += my_read(fd, &info[1], 5, sc);
  96     if (info_read != 6) // read error or eof
  97       return 0;
  98     // sync byte and reserved flags
  99     if (info[0] != 0x5a || (info[1] & 0xfc) != 0x00) {
 100       mp_msg(MSGT_DEMUXER, MSGL_ERR, "Invalid or unknown uvox metadata\n");
 101       return 0;
 102     }
 103     if (info[1] & 0x01)
 104       mp_msg(MSGT_DEMUXER, MSGL_WARN, "Encrypted ultravox data\n");
 105     metaint = info[4] << 8 | info[5];
 106     if ((info[3] & 0xf) < 0x07) { // discard any metadata nonsense
 107       char *metabuf = malloc(metaint);
 108       my_read(fd, metabuf, metaint, sc);
 109       free(metabuf);
 110     }
 111   } while ((info[3] & 0xf) < 0x07);
 112   return metaint;
 113 }
 114
 115 /**
 116  * \brief read one scast meta data entry and print it
 117  * \param fd file descriptor to read from
 118  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 119  */
 120 static void scast_meta_read(int fd, streaming_ctrl_t *sc) {
 121   unsigned char tmp = 0;
 122   unsigned metalen;
 123   my_read(fd, &tmp, 1, sc);
 124   metalen = tmp * 16;
 125   if (metalen > 0) {
 126     char *info = malloc(metalen + 1);
 127     unsigned nlen = my_read(fd, info, metalen, sc);
 128     info[nlen] = 0;
 129     mp_msg(MSGT_DEMUXER, MSGL_INFO, "\nICY Info: %s\n", info);
 130     free(info);
 131   }
 132 }
 133
 134 /**
 135  * \brief read data from scast/ultravox stream without any metadata
 136  * \param fd file descriptor to read from
 137  * \param buffer buffer to read data into
 138  * \param size number of bytes to read
 139  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 140  */
 141 static int scast_streaming_read(int fd, char *buffer, int size,
 142                                 streaming_ctrl_t *sc) {
 143   scast_data_t *sd = (scast_data_t *)sc->data;
 144   unsigned block, ret;
 145   unsigned done = 0;
 146
 147   // first read remaining data up to next metadata
 148   block = sd->metaint - sd->metapos;
 149   if (block > size)
 150     block = size;
 151   ret = my_read(fd, buffer, block, sc);
 152   sd->metapos += ret;
 153   done += ret;
 154   if (ret != block) // read problems or eof
 155     size = done;
 156
 157   while (done < size) { // now comes the metadata
 158     if (sd->is_ultravox)
 159     {
 160       sd->metaint = uvox_meta_read(fd, sc);
 161       if (!sd->metaint)
 162         size = done;
 163     }
 164     else
 165       scast_meta_read(fd, sc); // read and display metadata
 166     sd->metapos = 0;
 167     block = size - done;
 168     if (block > sd->metaint)
 169       block = sd->metaint;
 170     ret = my_read(fd, &buffer[done], block, sc);
 171     sd->metapos += ret;
 172     done += ret;
 173     if (ret != block) // read problems or eof
 174       size = done;
 175   }
 176   return done;
 177 }
 178
 179 static int scast_streaming_start(stream_t *stream) {
 180   int metaint;
 181   scast_data_t *scast_data;
 182   HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 183   int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 184   if (!stream || stream->fd < 0 || !http_hdr)
 185     return -1;
 186   if (is_ultravox)
 187     metaint = 0;
 188   else {
 189     metaint = atoi(http_get_field(http_hdr, "Icy-MetaInt"));
 190     if (metaint <= 0)
 191       return -1;
 192   }
 193   stream->streaming_ctrl->buffer = malloc(http_hdr->body_size);
 194   stream->streaming_ctrl->buffer_size = http_hdr->body_size;
 195   stream->streaming_ctrl->buffer_pos = 0;
 196   memcpy(stream->streaming_ctrl->buffer, http_hdr->body, http_hdr->body_size);
 197   scast_data = malloc(sizeof(scast_data_t));
 198   scast_data->metaint = metaint;
 199   scast_data->metapos = 0;
 200   scast_data->is_ultravox = is_ultravox;
 201   http_free(http_hdr);
 202   stream->streaming_ctrl->data = scast_data;
 203   stream->streaming_ctrl->streaming_read = scast_streaming_read;
 204   stream->streaming_ctrl->streaming_seek = NULL;
 205   stream->streaming_ctrl->prebuffer_size = 64 * 1024; // 64 KBytes
 206   stream->streaming_ctrl->buffering = 1;
 207   stream->streaming_ctrl->status = streaming_playing_e;
 208   return 0;
 209 }
 210
 211 static int nop_streaming_start( stream_t *stream ) {
 212         HTTP_header_t *http_hdr = NULL;
 213         char *next_url=NULL;
 214         URL_t *rd_url=NULL;
 215         int fd,ret;
 216         if( stream==NULL ) return -1;
 217
 218         fd = stream->fd;
 219         if( fd<0 ) {
 220                 fd = http_send_request( stream->streaming_ctrl->url, 0 );
 221                 if( fd<0 ) return -1;
 222                 http_hdr = http_read_response( fd );
 223                 if( http_hdr==NULL ) return -1;
 224
 225                 switch( http_hdr->status_code ) {
 226                         case 200: // OK
 227                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
 228                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
 229                                 if( http_hdr->body_size>0 ) {
 230                                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 231                                                 http_free( http_hdr );
 232                                                 return -1;
 233                                         }
 234                                 }
 235                                 break;
 236                         // Redirect
 237                         case 301: // Permanently
 238                         case 302: // Temporarily
 239                         case 303: // See Other
 240                                 ret=-1;
 241                                 next_url = http_get_field( http_hdr, "Location" );
 242
 243                                 if (next_url != NULL)
 244                                         rd_url=url_new(next_url);
 245
 246                                 if (next_url != NULL && rd_url != NULL) {
 247                                         mp_msg(MSGT_NETWORK,MSGL_STATUS,"Redirected: Using this url instead %s\n",next_url);
 248                                                         stream->streaming_ctrl->url=check4proxies(rd_url);
 249                                         ret=nop_streaming_start(stream); //recursively get streaming started
 250                                 } else {
 251                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Redirection failed\n");
 252                                         closesocket( fd );
 253                                         fd = -1;
 254                                 }
 255                                 return ret;
 256                                 break;
 257                         case 401: //Authorization required
 258                         case 403: //Forbidden
 259                         case 404: //Not found
 260                         case 500: //Server Error
 261                         default:
 262                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned code %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 263                                 closesocket( fd );
 264                                 fd = -1;
 265                                 return -1;
 266                                 break;
 267                 }
 268                 stream->fd = fd;
 269         } else {
 270                 http_hdr = (HTTP_header_t*)stream->streaming_ctrl->data;
 271                 if( http_hdr->body_size>0 ) {
 272                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 273                                 http_free( http_hdr );
 274                                 stream->streaming_ctrl->data = NULL;
 275                                 return -1;
 276                         }
 277                 }
 278         }
 279
 280         if( http_hdr ) {
 281                 http_free( http_hdr );
 282                 stream->streaming_ctrl->data = NULL;
 283         }
 284
 285         stream->streaming_ctrl->streaming_read = nop_streaming_read;
 286         stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
 287         stream->streaming_ctrl->prebuffer_size = 64*1024; // 64 KBytes
 288         stream->streaming_ctrl->buffering = 1;
 289         stream->streaming_ctrl->status = streaming_playing_e;
 290         return 0;
 291 }
 292
 293 HTTP_header_t *
 294 http_new_header(void) {
 295         HTTP_header_t *http_hdr;
 296
 297         http_hdr = malloc(sizeof(HTTP_header_t));
 298         if( http_hdr==NULL ) return NULL;
 299         memset( http_hdr, 0, sizeof(HTTP_header_t) );
 300
 301         return http_hdr;
 302 }
 303
 304 void
 305 http_free( HTTP_header_t *http_hdr ) {
 306         HTTP_field_t *field, *field2free;
 307         if( http_hdr==NULL ) return;
 308         if( http_hdr->protocol!=NULL ) free( http_hdr->protocol );
 309         if( http_hdr->uri!=NULL ) free( http_hdr->uri );
 310         if( http_hdr->reason_phrase!=NULL ) free( http_hdr->reason_phrase );
 311         if( http_hdr->field_search!=NULL ) free( http_hdr->field_search );
 312         if( http_hdr->method!=NULL ) free( http_hdr->method );
 313         if( http_hdr->buffer!=NULL ) free( http_hdr->buffer );
 314         field = http_hdr->first_field;
 315         while( field!=NULL ) {
 316                 field2free = field;
 317                 if (field->field_name)
 318                   free(field->field_name);
 319                 field = field->next;
 320                 free( field2free );
 321         }
 322         free( http_hdr );
 323         http_hdr = NULL;
 324 }
 325
 326 int
 327 http_response_append( HTTP_header_t *http_hdr, char *response, int length ) {
 328         if( http_hdr==NULL || response==NULL || length<0 ) return -1;
 329
 330         if( (unsigned)length > SIZE_MAX - http_hdr->buffer_size - 1) {
 331                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Bad size in memory (re)allocation\n");
 332                 return -1;
 333         }
 334         http_hdr->buffer = realloc( http_hdr->buffer, http_hdr->buffer_size+length+1 );
 335         if( http_hdr->buffer==NULL ) {
 336                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory (re)allocation failed\n");
 337                 return -1;
 338         }
 339         memcpy( http_hdr->buffer+http_hdr->buffer_size, response, length );
 340         http_hdr->buffer_size += length;
 341         http_hdr->buffer[http_hdr->buffer_size]=0; // close the string!
 342         return http_hdr->buffer_size;
 343 }
 344
 345 int
 346 http_is_header_entire( HTTP_header_t *http_hdr ) {
 347         if( http_hdr==NULL ) return -1;
 348         if( http_hdr->buffer==NULL ) return 0; // empty
 349
 350         if( strstr(http_hdr->buffer, "\r\n\r\n")==NULL &&
 351             strstr(http_hdr->buffer, "\n\n")==NULL ) return 0;
 352         return 1;
 353 }
 354
 355 int
 356 http_response_parse( HTTP_header_t *http_hdr ) {
 357         char *hdr_ptr, *ptr;
 358         char *field=NULL;
 359         int pos_hdr_sep, hdr_sep_len;
 360         size_t len;
 361         if( http_hdr==NULL ) return -1;
 362         if( http_hdr->is_parsed ) return 0;
 363
 364         // Get the protocol
 365         hdr_ptr = strstr( http_hdr->buffer, " " );
 366         if( hdr_ptr==NULL ) {
 367                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. No space separator found.\n");
 368                 return -1;
 369         }
 370         len = hdr_ptr-http_hdr->buffer;
 371         http_hdr->protocol = malloc(len+1);
 372         if( http_hdr->protocol==NULL ) {
 373                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 374                 return -1;
 375         }
 376         strncpy( http_hdr->protocol, http_hdr->buffer, len );
 377         http_hdr->protocol[len]='\0';
 378         if( !strncasecmp( http_hdr->protocol, "HTTP", 4) ) {
 379                 if( sscanf( http_hdr->protocol+5,"1.%d", &(http_hdr->http_minor_version) )!=1 ) {
 380                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get HTTP minor version.\n");
 381                         return -1;
 382                 }
 383         }
 384
 385         // Get the status code
 386         if( sscanf( ++hdr_ptr, "%d", &(http_hdr->status_code) )!=1 ) {
 387                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get status code.\n");
 388                 return -1;
 389         }
 390         hdr_ptr += 4;
 391
 392         // Get the reason phrase
 393         ptr = strstr( hdr_ptr, "\n" );
 394         if( hdr_ptr==NULL ) {
 395                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get the reason phrase.\n");
 396                 return -1;
 397         }
 398         len = ptr-hdr_ptr;
 399         http_hdr->reason_phrase = malloc(len+1);
 400         if( http_hdr->reason_phrase==NULL ) {
 401                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 402                 return -1;
 403         }
 404         strncpy( http_hdr->reason_phrase, hdr_ptr, len );
 405         if( http_hdr->reason_phrase[len-1]=='\r' ) {
 406                 len--;
 407         }
 408         http_hdr->reason_phrase[len]='\0';
 409
 410         // Set the position of the header separator: \r\n\r\n
 411         hdr_sep_len = 4;
 412         ptr = strstr( http_hdr->buffer, "\r\n\r\n" );
 413         if( ptr==NULL ) {
 414                 ptr = strstr( http_hdr->buffer, "\n\n" );
 415                 if( ptr==NULL ) {
 416                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Header may be incomplete. No CRLF CRLF found.\n");
 417                         return -1;
 418                 }
 419                 hdr_sep_len = 2;
 420         }
 421         pos_hdr_sep = ptr-http_hdr->buffer;
 422
 423         // Point to the first line after the method line.
 424         hdr_ptr = strstr( http_hdr->buffer, "\n" )+1;
 425         do {
 426                 ptr = hdr_ptr;
 427                 while( *ptr!='\r' && *ptr!='\n' ) ptr++;
 428                 len = ptr-hdr_ptr;
 429                 if( len==0 ) break;
 430                 field = realloc(field, len+1);
 431                 if( field==NULL ) {
 432                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 433                         return -1;
 434                 }
 435                 strncpy( field, hdr_ptr, len );
 436                 field[len]='\0';
 437                 http_set_field( http_hdr, field );
 438                 hdr_ptr = ptr+((*ptr=='\r')?2:1);
 439         } while( hdr_ptr<(http_hdr->buffer+pos_hdr_sep) );
 440
 441         if( field!=NULL ) free( field );
 442
 443         if( pos_hdr_sep+hdr_sep_len<http_hdr->buffer_size ) {
 444                 // Response has data!
 445                 http_hdr->body = http_hdr->buffer+pos_hdr_sep+hdr_sep_len;
 446                 http_hdr->body_size = http_hdr->buffer_size-(pos_hdr_sep+hdr_sep_len);
 447         }
 448
 449         http_hdr->is_parsed = 1;
 450         return 0;
 451 }
 452
 453 char *
 454 http_build_request( HTTP_header_t *http_hdr ) {
 455         char *ptr, *uri=NULL;
 456         int len;
 457         HTTP_field_t *field;
 458         if( http_hdr==NULL ) return NULL;
 459
 460         if( http_hdr->method==NULL ) http_set_method( http_hdr, "GET");
 461         if( http_hdr->uri==NULL ) http_set_uri( http_hdr, "/");
 462         else {
 463                 uri = malloc(strlen(http_hdr->uri) + 1);
 464                 if( uri==NULL ) {
 465                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 466                         return NULL;
 467                 }
 468                 strcpy(uri,http_hdr->uri);
 469         }
 470
 471         //**** Compute the request length
 472         // Add the Method line
 473         len = strlen(http_hdr->method)+strlen(uri)+12;
 474         // Add the fields
 475         field = http_hdr->first_field;
 476         while( field!=NULL ) {
 477                 len += strlen(field->field_name)+2;
 478                 field = field->next;
 479         }
 480         // Add the CRLF
 481         len += 2;
 482         // Add the body
 483         if( http_hdr->body!=NULL ) {
 484                 len += http_hdr->body_size;
 485         }
 486         // Free the buffer if it was previously used
 487         if( http_hdr->buffer!=NULL ) {
 488                 free( http_hdr->buffer );
 489                 http_hdr->buffer = NULL;
 490         }
 491         http_hdr->buffer = malloc(len+1);
 492         if( http_hdr->buffer==NULL ) {
 493                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 494                 return NULL;
 495         }
 496         http_hdr->buffer_size = len;
 497
 498         //*** Building the request
 499         ptr = http_hdr->buffer;
 500         // Add the method line
 501         ptr += sprintf( ptr, "%s %s HTTP/1.%d\r\n", http_hdr->method, uri, http_hdr->http_minor_version );
 502         field = http_hdr->first_field;
 503         // Add the field
 504         while( field!=NULL ) {
 505                 ptr += sprintf( ptr, "%s\r\n", field->field_name );
 506                 field = field->next;
 507         }
 508         ptr += sprintf( ptr, "\r\n" );
 509         // Add the body
 510         if( http_hdr->body!=NULL ) {
 511                 memcpy( ptr, http_hdr->body, http_hdr->body_size );
 512         }
 513
 514         if( uri ) free( uri );
 515         return http_hdr->buffer;
 516 }
 517
 518 char *
 519 http_get_field( HTTP_header_t *http_hdr, const char *field_name ) {
 520         if( http_hdr==NULL || field_name==NULL ) return NULL;
 521         http_hdr->field_search_pos = http_hdr->first_field;
 522         http_hdr->field_search = realloc( http_hdr->field_search, strlen(field_name)+1 );
 523         if( http_hdr->field_search==NULL ) {
 524                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 525                 return NULL;
 526         }
 527         strcpy( http_hdr->field_search, field_name );
 528         return http_get_next_field( http_hdr );
 529 }
 530
 531 char *
 532 http_get_next_field( HTTP_header_t *http_hdr ) {
 533         char *ptr;
 534         HTTP_field_t *field;
 535         if( http_hdr==NULL ) return NULL;
 536
 537         field = http_hdr->field_search_pos;
 538         while( field!=NULL ) {
 539                 ptr = strstr( field->field_name, ":" );
 540                 if( ptr==NULL ) return NULL;
 541                 if( !strncasecmp( field->field_name, http_hdr->field_search, ptr-(field->field_name) ) ) {
 542                         ptr++;  // Skip the column
 543                         while( ptr[0]==' ' ) ptr++; // Skip the spaces if there is some
 544                         http_hdr->field_search_pos = field->next;
 545                         return ptr;     // return the value without the field name
 546                 }
 547                 field = field->next;
 548         }
 549         return NULL;
 550 }
 551
 552 void
 553 http_set_field( HTTP_header_t *http_hdr, const char *field_name ) {
 554         HTTP_field_t *new_field;
 555         if( http_hdr==NULL || field_name==NULL ) return;
 556
 557         new_field = malloc(sizeof(HTTP_field_t));
 558         if( new_field==NULL ) {
 559                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 560                 return;
 561         }
 562         new_field->next = NULL;
 563         new_field->field_name = malloc(strlen(field_name)+1);
 564         if( new_field->field_name==NULL ) {
 565                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 566                 free(new_field);
 567                 return;
 568         }
 569         strcpy( new_field->field_name, field_name );
 570
 571         if( http_hdr->last_field==NULL ) {
 572                 http_hdr->first_field = new_field;
 573         } else {
 574                 http_hdr->last_field->next = new_field;
 575         }
 576         http_hdr->last_field = new_field;
 577         http_hdr->field_nb++;
 578 }
 579
 580 void
 581 http_set_method( HTTP_header_t *http_hdr, const char *method ) {
 582         if( http_hdr==NULL || method==NULL ) return;
 583
 584         http_hdr->method = malloc(strlen(method)+1);
 585         if( http_hdr->method==NULL ) {
 586                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 587                 return;
 588         }
 589         strcpy( http_hdr->method, method );
 590 }
 591
 592 void
 593 http_set_uri( HTTP_header_t *http_hdr, const char *uri ) {
 594         if( http_hdr==NULL || uri==NULL ) return;
 595
 596         http_hdr->uri = malloc(strlen(uri)+1);
 597         if( http_hdr->uri==NULL ) {
 598                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 599                 return;
 600         }
 601         strcpy( http_hdr->uri, uri );
 602 }
 603
 604 int
 605 http_add_basic_authentication( HTTP_header_t *http_hdr, const char *username, const char *password ) {
 606         char *auth = NULL, *usr_pass = NULL, *b64_usr_pass = NULL;
 607         int encoded_len, pass_len=0, out_len;
 608         int res = -1;
 609         if( http_hdr==NULL || username==NULL ) return -1;
 610
 611         if( password!=NULL ) {
 612                 pass_len = strlen(password);
 613         }
 614
 615         usr_pass = malloc(strlen(username)+pass_len+2);
 616         if( usr_pass==NULL ) {
 617                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 618                 goto out;
 619         }
 620
 621         sprintf( usr_pass, "%s:%s", username, (password==NULL)?"":password );
 622
 623         // Base 64 encode with at least 33% more data than the original size
 624         encoded_len = strlen(usr_pass)*2;
 625         b64_usr_pass = malloc(encoded_len);
 626         if( b64_usr_pass==NULL ) {
 627                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 628                 goto out;
 629         }
 630
 631         out_len = base64_encode( usr_pass, strlen(usr_pass), b64_usr_pass, encoded_len);
 632         if( out_len<0 ) {
 633                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Base64 out overflow\n");
 634                 goto out;
 635         }
 636
 637         b64_usr_pass[out_len]='\0';
 638
 639         auth = malloc(encoded_len+22);
 640         if( auth==NULL ) {
 641                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 642                 goto out;
 643         }
 644
 645         sprintf( auth, "Authorization: Basic %s", b64_usr_pass);
 646         http_set_field( http_hdr, auth );
 647         res = 0;
 648
 649 out:
 650         free( usr_pass );
 651         free( b64_usr_pass );
 652         free( auth );
 653
 654         return res;
 655 }
 656
 657 void
 658 http_debug_hdr( HTTP_header_t *http_hdr ) {
 659         HTTP_field_t *field;
 660         int i = 0;
 661         if( http_hdr==NULL ) return;
 662
 663         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- START ---\n");
 664         mp_msg(MSGT_NETWORK,MSGL_V,"protocol:           [%s]\n", http_hdr->protocol );
 665         mp_msg(MSGT_NETWORK,MSGL_V,"http minor version: [%d]\n", http_hdr->http_minor_version );
 666         mp_msg(MSGT_NETWORK,MSGL_V,"uri:                [%s]\n", http_hdr->uri );
 667         mp_msg(MSGT_NETWORK,MSGL_V,"method:             [%s]\n", http_hdr->method );
 668         mp_msg(MSGT_NETWORK,MSGL_V,"status code:        [%d]\n", http_hdr->status_code );
 669         mp_msg(MSGT_NETWORK,MSGL_V,"reason phrase:      [%s]\n", http_hdr->reason_phrase );
 670         mp_msg(MSGT_NETWORK,MSGL_V,"body size:          [%d]\n", http_hdr->body_size );
 671
 672         mp_msg(MSGT_NETWORK,MSGL_V,"Fields:\n");
 673         field = http_hdr->first_field;
 674         while( field!=NULL ) {
 675                 mp_msg(MSGT_NETWORK,MSGL_V," %d - %s\n", i++, field->field_name );
 676                 field = field->next;
 677         }
 678         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- END ---\n");
 679 }
 680
 681 int
 682 base64_encode(const void *enc, int encLen, char *out, int outMax) {
 683         static const char       b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 684
 685         unsigned char           *encBuf;
 686         int                     outLen;
 687         unsigned int            bits;
 688         unsigned int            shift;
 689
 690         encBuf = (unsigned char*)enc;
 691         outLen = 0;
 692         bits = 0;
 693         shift = 0;
 694         outMax &= ~3;
 695
 696         while(1) {
 697                 if( encLen>0 ) {
 698                         // Shift in byte
 699                         bits <<= 8;
 700                         bits |= *encBuf;
 701                         shift += 8;
 702                         // Next byte
 703                         encBuf++;
 704                         encLen--;
 705                 } else if( shift>0 ) {
 706                         // Pad last bits to 6 bits - will end next loop
 707                         bits <<= 6 - shift;
 708                         shift = 6;
 709                 } else {
 710                         // As per RFC 2045, section 6.8,
 711                         // pad output as necessary: 0 to 2 '=' chars.
 712                         while( outLen & 3 ){
 713                                 *out++ = '=';
 714                                 outLen++;
 715                         }
 716
 717                         return outLen;
 718                 }
 719
 720                 // Encode 6 bit segments
 721                 while( shift>=6 ) {
 722                         if (outLen >= outMax)
 723                                 return -1;
 724                         shift -= 6;
 725                         *out = b64[ (bits >> shift) & 0x3F ];
 726                         out++;
 727                         outLen++;
 728                 }
 729         }
 730 }
 731
 732 static void print_icy_metadata(HTTP_header_t *http_hdr) {
 733         const char *field_data;
 734         // note: I skip icy-notice1 and 2, as they contain html <BR>
 735         // and are IMHO useless info ::atmos
 736         if( (field_data = http_get_field(http_hdr, "icy-name")) != NULL )
 737                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Name   : %s\n", field_data);
 738         if( (field_data = http_get_field(http_hdr, "icy-genre")) != NULL )
 739                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Genre  : %s\n", field_data);
 740         if( (field_data = http_get_field(http_hdr, "icy-url")) != NULL )
 741                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Website: %s\n", field_data);
 742         // XXX: does this really mean public server? ::atmos
 743         if( (field_data = http_get_field(http_hdr, "icy-pub")) != NULL )
 744                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Public : %s\n", atoi(field_data)?"yes":"no");
 745         if( (field_data = http_get_field(http_hdr, "icy-br")) != NULL )
 746                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Bitrate: %skbit/s\n", field_data);
 747 }
 748
 749 //! If this function succeeds you must closesocket stream->fd
 750 static int http_streaming_start(stream_t *stream, int* file_format) {
 751         HTTP_header_t *http_hdr = NULL;
 752         unsigned int i;
 753         int fd = stream->fd;
 754         int res = STREAM_UNSUPPORTED;
 755         int redirect = 0;
 756         int auth_retry=0;
 757         int seekable=0;
 758         char *content_type;
 759         const char *content_length;
 760         char *next_url;
 761         URL_t *url = stream->streaming_ctrl->url;
 762
 763         do
 764         {
 765                 redirect = 0;
 766                 if (fd > 0) closesocket(fd);
 767                 fd = http_send_request( url, 0 );
 768                 if( fd<0 ) {
 769                         goto err_out;
 770                 }
 771
 772                 http_free(http_hdr);
 773                 http_hdr = http_read_response( fd );
 774                 if( http_hdr==NULL ) {
 775                         goto err_out;
 776                 }
 777
 778                 if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
 779                         http_debug_hdr( http_hdr );
 780                 }
 781
 782                 // Check if we can make partial content requests and thus seek in http-streams
 783                 if( http_hdr!=NULL && http_hdr->status_code==200 ) {
 784                     const char *accept_ranges = http_get_field(http_hdr,"Accept-Ranges");
 785                     const char *server = http_get_field(http_hdr, "Server");
 786                     if (accept_ranges)
 787                         seekable = strncmp(accept_ranges,"bytes",5)==0;
 788                     else if (server && strcmp(server, "gvs 1.0") == 0)
 789                         seekable = 1; // HACK for youtube incorrectly claiming not to support seeking
 790                 }
 791
 792                 print_icy_metadata(http_hdr);
 793
 794                 // Check if the response is an ICY status_code reason_phrase
 795                 if( !strcasecmp(http_hdr->protocol, "ICY") ||
 796                      http_get_field(http_hdr, "Icy-MetaInt") ) {
 797                         switch( http_hdr->status_code ) {
 798                                 case 200: { // OK
 799                                         char *field_data;
 800                                         // If content-type == video/nsv we most likely have a winamp video stream
 801                                         // otherwise it should be mp3. if there are more types consider adding mime type
 802                                         // handling like later
 803                                         if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "video/nsv") || !strcmp(field_data, "misc/ultravox")))
 804                                                 *file_format = DEMUXER_TYPE_NSV;
 805                                         else if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "audio/aacp") || !strcmp(field_data, "audio/aac")))
 806                                                 *file_format = DEMUXER_TYPE_AAC;
 807                                         else
 808                                                 *file_format = DEMUXER_TYPE_AUDIO;
 809                                         res = STREAM_ERROR;
 810                                         goto out;
 811                                 }
 812                                 case 400: // Server Full
 813                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server is full, skipping!\n");
 814                                         goto err_out;
 815                                 case 401: // Service Unavailable
 816                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return service unavailable, skipping!\n");
 817                                         goto err_out;
 818                                 case 403: // Service Forbidden
 819                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return 'Service Forbidden'\n");
 820                                         goto err_out;
 821                                 case 404: // Resource Not Found
 822                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server couldn't find requested stream, skipping!\n");
 823                                         goto err_out;
 824                                 default:
 825                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: unhandled ICY-Errorcode, contact MPlayer developers!\n");
 826                                         goto err_out;
 827                         }
 828                 }
 829
 830                 // Assume standard http if not ICY
 831                 switch( http_hdr->status_code ) {
 832                         case 200: // OK
 833                                 content_length = http_get_field(http_hdr, "Content-Length");
 834                                 if (content_length) {
 835                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", content_length);
 836                                         stream->end_pos = atoll(content_length);
 837                                 }
 838                                 // Look if we can use the Content-Type
 839                                 content_type = http_get_field( http_hdr, "Content-Type" );
 840                                 if( content_type!=NULL ) {
 841                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", content_type );
 842                                         // Check in the mime type table for a demuxer type
 843                                         i = 0;
 844                                         while(mime_type_table[i].mime_type != NULL) {
 845                                                 if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) {
 846                                                         *file_format = mime_type_table[i].demuxer_type;
 847                                                         res = seekable;
 848                                                         goto out;
 849                                                 }
 850                                                 i++;
 851                                         }
 852                                 }
 853                                 // Not found in the mime type table, don't fail,
 854                                 // we should try raw HTTP
 855                                 res = seekable;
 856                                 goto out;
 857                         // Redirect
 858                         case 301: // Permanently
 859                         case 302: // Temporarily
 860                         case 303: // See Other
 861                                 // TODO: RFC 2616, recommand to detect infinite redirection loops
 862                                 next_url = http_get_field( http_hdr, "Location" );
 863                                 if( next_url!=NULL ) {
 864                                         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 865                                         stream->streaming_ctrl->url = url_redirect( &url, next_url );
 866                                         if (!strcasecmp(url->protocol, "mms")) {
 867                                                 res = STREAM_REDIRECTED;
 868                                                 goto err_out;
 869                                         }
 870                                         if (strcasecmp(url->protocol, "http")) {
 871                                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Unsupported http %d redirect to %s protocol\n", http_hdr->status_code, url->protocol);
 872                                                 goto err_out;
 873                                         }
 874                                         if (is_ultravox)  {
 875                                                 free(url->protocol);
 876                                                 url->protocol = strdup("unsv");
 877                                         }
 878                                         redirect = 1;
 879                                 }
 880                                 break;
 881                         case 401: // Authentication required
 882                                 if( http_authenticate(http_hdr, url, &auth_retry)<0 )
 883                                         goto err_out;
 884                                 redirect = 1;
 885                                 break;
 886                         default:
 887                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 888                                 goto err_out;
 889                 }
 890         } while( redirect );
 891
 892 err_out:
 893         if (fd > 0) closesocket( fd );
 894         fd = -1;
 895         http_free( http_hdr );
 896         http_hdr = NULL;
 897 out:
 898         stream->streaming_ctrl->data = (void*)http_hdr;
 899         stream->fd = fd;
 900         return res;
 901 }
 902
 903 static int fixup_open(stream_t *stream,int seekable) {
 904         HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 905         int is_icy = http_hdr && http_get_field(http_hdr, "Icy-MetaInt");
 906         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 907
 908         stream->type = STREAMTYPE_STREAM;
 909         if(!is_icy && !is_ultravox && seekable)
 910         {
 911                 stream->flags |= MP_STREAM_SEEK;
 912                 stream->seek = http_seek;
 913         }
 914         stream->streaming_ctrl->bandwidth = network_bandwidth;
 915         if ((!is_icy && !is_ultravox) || scast_streaming_start(stream))
 916         if(nop_streaming_start( stream )) {
 917                 mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_start failed\n");
 918                 if (stream->fd >= 0)
 919                         closesocket(stream->fd);
 920                 stream->fd = -1;
 921                 streaming_ctrl_free(stream->streaming_ctrl);
 922                 stream->streaming_ctrl = NULL;
 923                 return STREAM_UNSUPPORTED;
 924         }
 925
 926         fixup_network_stream_cache(stream);
 927         return STREAM_OK;
 928 }
 929
 930 static int open_s1(stream_t *stream,int mode, void* opts, int* file_format) {
 931         int seekable=0;
 932         URL_t *url;
 933
 934         stream->streaming_ctrl = streaming_ctrl_new();
 935         if( stream->streaming_ctrl==NULL ) {
 936                 return STREAM_ERROR;
 937         }
 938         stream->streaming_ctrl->bandwidth = network_bandwidth;
 939         url = url_new(stream->url);
 940         stream->streaming_ctrl->url = check4proxies(url);
 941         url_free(url);
 942
 943         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(1), URL: %s\n", stream->url);
 944         seekable = http_streaming_start(stream, file_format);
 945         if((seekable < 0) || (*file_format == DEMUXER_TYPE_ASF)) {
 946                 if (stream->fd >= 0)
 947                         closesocket(stream->fd);
 948                 stream->fd = -1;
 949                 if (seekable == STREAM_REDIRECTED)
 950                         return seekable;
 951                 streaming_ctrl_free(stream->streaming_ctrl);
 952                 stream->streaming_ctrl = NULL;
 953                 return STREAM_UNSUPPORTED;
 954         }
 955
 956         return fixup_open(stream, seekable);
 957 }
 958
 959 static int open_s2(stream_t *stream,int mode, void* opts, int* file_format) {
 960         int seekable=0;
 961         URL_t *url;
 962
 963         stream->streaming_ctrl = streaming_ctrl_new();
 964         if( stream->streaming_ctrl==NULL ) {
 965                 return STREAM_ERROR;
 966         }
 967         stream->streaming_ctrl->bandwidth = network_bandwidth;
 968         url = url_new(stream->url);
 969         stream->streaming_ctrl->url = check4proxies(url);
 970         url_free(url);
 971
 972         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(2), URL: %s\n", stream->url);
 973         seekable = http_streaming_start(stream, file_format);
 974         if(seekable < 0) {
 975                 if (stream->fd >= 0)
 976                         closesocket(stream->fd);
 977                 stream->fd = -1;
 978                 streaming_ctrl_free(stream->streaming_ctrl);
 979                 stream->streaming_ctrl = NULL;
 980                 return STREAM_UNSUPPORTED;
 981         }
 982
 983         return fixup_open(stream, seekable);
 984 }
 985
 986
 987 const stream_info_t stream_info_http1 = {
 988   "http streaming",
 989   "null",
 990   "Bertrand, Albeau, Reimar Doeffinger, Arpi?",
 991   "plain http",
 992   open_s1,
 993   {"http", "http_proxy", "unsv", "icyx", "noicyx", NULL},
 994   NULL,
 995   0 // Urls are an option string
 996 };
 997
 998 const stream_info_t stream_info_http2 = {
 999   "http streaming",
1000   "null",
1001   "Bertrand, Albeu, Arpi? who?",
1002   "plain http, also used as fallback for many other protocols",
1003   open_s2,
1004   {"http", "http_proxy", "pnm", "mms", "mmsu", "mmst", "rtsp", NULL},   //all the others as fallback
1005   NULL,
1006   0 // Urls are an option string
1007 };