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 int stream_cache_size;
  46 extern int network_bandwidth;
  47
  48 typedef struct {
  49   unsigned metaint;
  50   unsigned metapos;
  51   int is_ultravox;
  52 } scast_data_t;
  53
  54 /**
  55  * \brief first read any data from sc->buffer then from fd
  56  * \param fd file descriptor to read data from
  57  * \param buffer buffer to read into
  58  * \param len how many bytes to read
  59  * \param sc streaming control containing buffer to read from first
  60  * \return len unless there is a read error or eof
  61  */
  62 static unsigned my_read(int fd, char *buffer, int len, streaming_ctrl_t *sc) {
  63   unsigned pos = 0;
  64   unsigned cp_len = sc->buffer_size - sc->buffer_pos;
  65   if (cp_len > len)
  66     cp_len = len;
  67   memcpy(buffer, &sc->buffer[sc->buffer_pos], cp_len);
  68   sc->buffer_pos += cp_len;
  69   pos += cp_len;
  70   while (pos < len) {
  71     int ret = recv(fd, &buffer[pos], len - pos, 0);
  72     if (ret <= 0)
  73       break;
  74     pos += ret;
  75   }
  76   return pos;
  77 }
  78
  79 /**
  80  * \brief read and process (i.e. discard *g*) a block of ultravox metadata
  81  * \param fd file descriptor to read from
  82  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
  83  * \return number of real data before next metadata block starts or 0 on error
  84  */
  85 static unsigned uvox_meta_read(int fd, streaming_ctrl_t *sc) {
  86   unsigned metaint;
  87   unsigned char info[6] = {0, 0, 0, 0, 0, 0};
  88   int info_read;
  89   do {
  90     info_read = my_read(fd, info, 1, sc);
  91     if (info[0] == 0x00)
  92       info_read = my_read(fd, info, 6, sc);
  93     else
  94       info_read += my_read(fd, &info[1], 5, sc);
  95     if (info_read != 6) // read error or eof
  96       return 0;
  97     // sync byte and reserved flags
  98     if (info[0] != 0x5a || (info[1] & 0xfc) != 0x00) {
  99       mp_msg(MSGT_DEMUXER, MSGL_ERR, "Invalid or unknown uvox metadata\n");
 100       return 0;
 101     }
 102     if (info[1] & 0x01)
 103       mp_msg(MSGT_DEMUXER, MSGL_WARN, "Encrypted ultravox data\n");
 104     metaint = info[4] << 8 | info[5];
 105     if ((info[3] & 0xf) < 0x07) { // discard any metadata nonsense
 106       char *metabuf = malloc(metaint);
 107       my_read(fd, metabuf, metaint, sc);
 108       free(metabuf);
 109     }
 110   } while ((info[3] & 0xf) < 0x07);
 111   return metaint;
 112 }
 113
 114 /**
 115  * \brief read one scast meta data entry and print it
 116  * \param fd file descriptor to read from
 117  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 118  */
 119 static void scast_meta_read(int fd, streaming_ctrl_t *sc) {
 120   unsigned char tmp = 0;
 121   unsigned metalen;
 122   my_read(fd, &tmp, 1, sc);
 123   metalen = tmp * 16;
 124   if (metalen > 0) {
 125     int i;
 126     uint8_t *info = malloc(metalen + 1);
 127     unsigned nlen = my_read(fd, info, metalen, sc);
 128     // avoid breaking the user's terminal too much
 129     if (nlen > 256) nlen = 256;
 130     for (i = 0; i < nlen; i++)
 131       if (info[i] && info[i] < 32) info[i] = '?';
 132     info[nlen] = 0;
 133     mp_msg(MSGT_DEMUXER, MSGL_INFO, "\nICY Info: %s\n", info);
 134     free(info);
 135   }
 136 }
 137
 138 /**
 139  * \brief read data from scast/ultravox stream without any metadata
 140  * \param fd file descriptor to read from
 141  * \param buffer buffer to read data into
 142  * \param size number of bytes to read
 143  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 144  */
 145 static int scast_streaming_read(int fd, char *buffer, int size,
 146                                 streaming_ctrl_t *sc) {
 147   scast_data_t *sd = (scast_data_t *)sc->data;
 148   unsigned block, ret;
 149   unsigned done = 0;
 150
 151   // first read remaining data up to next metadata
 152   block = sd->metaint - sd->metapos;
 153   if (block > size)
 154     block = size;
 155   ret = my_read(fd, buffer, block, sc);
 156   sd->metapos += ret;
 157   done += ret;
 158   if (ret != block) // read problems or eof
 159     size = done;
 160
 161   while (done < size) { // now comes the metadata
 162     if (sd->is_ultravox)
 163     {
 164       sd->metaint = uvox_meta_read(fd, sc);
 165       if (!sd->metaint)
 166         size = done;
 167     }
 168     else
 169       scast_meta_read(fd, sc); // read and display metadata
 170     sd->metapos = 0;
 171     block = size - done;
 172     if (block > sd->metaint)
 173       block = sd->metaint;
 174     ret = my_read(fd, &buffer[done], block, sc);
 175     sd->metapos += ret;
 176     done += ret;
 177     if (ret != block) // read problems or eof
 178       size = done;
 179   }
 180   return done;
 181 }
 182
 183 static int scast_streaming_start(stream_t *stream) {
 184   int metaint;
 185   scast_data_t *scast_data;
 186   HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 187   int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 188   if (!stream || stream->fd < 0 || !http_hdr)
 189     return -1;
 190   if (is_ultravox)
 191     metaint = 0;
 192   else {
 193     metaint = atoi(http_get_field(http_hdr, "Icy-MetaInt"));
 194     if (metaint <= 0)
 195       return -1;
 196   }
 197   stream->streaming_ctrl->buffer = malloc(http_hdr->body_size);
 198   stream->streaming_ctrl->buffer_size = http_hdr->body_size;
 199   stream->streaming_ctrl->buffer_pos = 0;
 200   memcpy(stream->streaming_ctrl->buffer, http_hdr->body, http_hdr->body_size);
 201   scast_data = malloc(sizeof(scast_data_t));
 202   scast_data->metaint = metaint;
 203   scast_data->metapos = 0;
 204   scast_data->is_ultravox = is_ultravox;
 205   http_free(http_hdr);
 206   stream->streaming_ctrl->data = scast_data;
 207   stream->streaming_ctrl->streaming_read = scast_streaming_read;
 208   stream->streaming_ctrl->streaming_seek = NULL;
 209   stream->streaming_ctrl->prebuffer_size = 64 * 1024; // 64 KBytes
 210   stream->streaming_ctrl->buffering = 1;
 211   stream->streaming_ctrl->status = streaming_playing_e;
 212   return 0;
 213 }
 214
 215 static int nop_streaming_start( stream_t *stream ) {
 216         HTTP_header_t *http_hdr = NULL;
 217         char *next_url=NULL;
 218         URL_t *rd_url=NULL;
 219         int fd,ret;
 220         if( stream==NULL ) return -1;
 221
 222         fd = stream->fd;
 223         if( fd<0 ) {
 224                 fd = http_send_request( stream->streaming_ctrl->url, 0 );
 225                 if( fd<0 ) return -1;
 226                 http_hdr = http_read_response( fd );
 227                 if( http_hdr==NULL ) return -1;
 228
 229                 switch( http_hdr->status_code ) {
 230                         case 200: // OK
 231                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
 232                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
 233                                 if( http_hdr->body_size>0 ) {
 234                                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 235                                                 http_free( http_hdr );
 236                                                 return -1;
 237                                         }
 238                                 }
 239                                 break;
 240                         // Redirect
 241                         case 301: // Permanently
 242                         case 302: // Temporarily
 243                         case 303: // See Other
 244                                 ret=-1;
 245                                 next_url = http_get_field( http_hdr, "Location" );
 246
 247                                 if (next_url != NULL)
 248                                         rd_url=url_new(next_url);
 249
 250                                 if (next_url != NULL && rd_url != NULL) {
 251                                         mp_msg(MSGT_NETWORK,MSGL_STATUS,"Redirected: Using this url instead %s\n",next_url);
 252                                                         stream->streaming_ctrl->url=check4proxies(rd_url);
 253                                         ret=nop_streaming_start(stream); //recursively get streaming started
 254                                 } else {
 255                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Redirection failed\n");
 256                                         closesocket( fd );
 257                                         fd = -1;
 258                                 }
 259                                 return ret;
 260                                 break;
 261                         case 401: //Authorization required
 262                         case 403: //Forbidden
 263                         case 404: //Not found
 264                         case 500: //Server Error
 265                         default:
 266                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned code %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 267                                 closesocket( fd );
 268                                 fd = -1;
 269                                 return -1;
 270                                 break;
 271                 }
 272                 stream->fd = fd;
 273         } else {
 274                 http_hdr = (HTTP_header_t*)stream->streaming_ctrl->data;
 275                 if( http_hdr->body_size>0 ) {
 276                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 277                                 http_free( http_hdr );
 278                                 stream->streaming_ctrl->data = NULL;
 279                                 return -1;
 280                         }
 281                 }
 282         }
 283
 284         if( http_hdr ) {
 285                 http_free( http_hdr );
 286                 stream->streaming_ctrl->data = NULL;
 287         }
 288
 289         stream->streaming_ctrl->streaming_read = nop_streaming_read;
 290         stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
 291         stream->streaming_ctrl->prebuffer_size = 64*1024; // 64 KBytes
 292         stream->streaming_ctrl->buffering = 1;
 293         stream->streaming_ctrl->status = streaming_playing_e;
 294         return 0;
 295 }
 296
 297 HTTP_header_t *
 298 http_new_header(void) {
 299         HTTP_header_t *http_hdr;
 300
 301         http_hdr = malloc(sizeof(HTTP_header_t));
 302         if( http_hdr==NULL ) return NULL;
 303         memset( http_hdr, 0, sizeof(HTTP_header_t) );
 304
 305         return http_hdr;
 306 }
 307
 308 void
 309 http_free( HTTP_header_t *http_hdr ) {
 310         HTTP_field_t *field, *field2free;
 311         if( http_hdr==NULL ) return;
 312         if( http_hdr->protocol!=NULL ) free( http_hdr->protocol );
 313         if( http_hdr->uri!=NULL ) free( http_hdr->uri );
 314         if( http_hdr->reason_phrase!=NULL ) free( http_hdr->reason_phrase );
 315         if( http_hdr->field_search!=NULL ) free( http_hdr->field_search );
 316         if( http_hdr->method!=NULL ) free( http_hdr->method );
 317         if( http_hdr->buffer!=NULL ) free( http_hdr->buffer );
 318         field = http_hdr->first_field;
 319         while( field!=NULL ) {
 320                 field2free = field;
 321                 if (field->field_name)
 322                   free(field->field_name);
 323                 field = field->next;
 324                 free( field2free );
 325         }
 326         free( http_hdr );
 327         http_hdr = NULL;
 328 }
 329
 330 int
 331 http_response_append( HTTP_header_t *http_hdr, char *response, int length ) {
 332         if( http_hdr==NULL || response==NULL || length<0 ) return -1;
 333
 334         if( (unsigned)length > SIZE_MAX - http_hdr->buffer_size - 1) {
 335                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Bad size in memory (re)allocation\n");
 336                 return -1;
 337         }
 338         http_hdr->buffer = realloc( http_hdr->buffer, http_hdr->buffer_size+length+1 );
 339         if( http_hdr->buffer==NULL ) {
 340                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory (re)allocation failed\n");
 341                 return -1;
 342         }
 343         memcpy( http_hdr->buffer+http_hdr->buffer_size, response, length );
 344         http_hdr->buffer_size += length;
 345         http_hdr->buffer[http_hdr->buffer_size]=0; // close the string!
 346         return http_hdr->buffer_size;
 347 }
 348
 349 int
 350 http_is_header_entire( HTTP_header_t *http_hdr ) {
 351         if( http_hdr==NULL ) return -1;
 352         if( http_hdr->buffer==NULL ) return 0; // empty
 353
 354         if( strstr(http_hdr->buffer, "\r\n\r\n")==NULL &&
 355             strstr(http_hdr->buffer, "\n\n")==NULL ) return 0;
 356         return 1;
 357 }
 358
 359 int
 360 http_response_parse( HTTP_header_t *http_hdr ) {
 361         char *hdr_ptr, *ptr;
 362         char *field=NULL;
 363         int pos_hdr_sep, hdr_sep_len;
 364         size_t len;
 365         if( http_hdr==NULL ) return -1;
 366         if( http_hdr->is_parsed ) return 0;
 367
 368         // Get the protocol
 369         hdr_ptr = strstr( http_hdr->buffer, " " );
 370         if( hdr_ptr==NULL ) {
 371                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. No space separator found.\n");
 372                 return -1;
 373         }
 374         len = hdr_ptr-http_hdr->buffer;
 375         http_hdr->protocol = malloc(len+1);
 376         if( http_hdr->protocol==NULL ) {
 377                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 378                 return -1;
 379         }
 380         strncpy( http_hdr->protocol, http_hdr->buffer, len );
 381         http_hdr->protocol[len]='\0';
 382         if( !strncasecmp( http_hdr->protocol, "HTTP", 4) ) {
 383                 if( sscanf( http_hdr->protocol+5,"1.%d", &(http_hdr->http_minor_version) )!=1 ) {
 384                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get HTTP minor version.\n");
 385                         return -1;
 386                 }
 387         }
 388
 389         // Get the status code
 390         if( sscanf( ++hdr_ptr, "%d", &(http_hdr->status_code) )!=1 ) {
 391                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get status code.\n");
 392                 return -1;
 393         }
 394         hdr_ptr += 4;
 395
 396         // Get the reason phrase
 397         ptr = strstr( hdr_ptr, "\n" );
 398         if( hdr_ptr==NULL ) {
 399                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get the reason phrase.\n");
 400                 return -1;
 401         }
 402         len = ptr-hdr_ptr;
 403         http_hdr->reason_phrase = malloc(len+1);
 404         if( http_hdr->reason_phrase==NULL ) {
 405                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 406                 return -1;
 407         }
 408         strncpy( http_hdr->reason_phrase, hdr_ptr, len );
 409         if( http_hdr->reason_phrase[len-1]=='\r' ) {
 410                 len--;
 411         }
 412         http_hdr->reason_phrase[len]='\0';
 413
 414         // Set the position of the header separator: \r\n\r\n
 415         hdr_sep_len = 4;
 416         ptr = strstr( http_hdr->buffer, "\r\n\r\n" );
 417         if( ptr==NULL ) {
 418                 ptr = strstr( http_hdr->buffer, "\n\n" );
 419                 if( ptr==NULL ) {
 420                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Header may be incomplete. No CRLF CRLF found.\n");
 421                         return -1;
 422                 }
 423                 hdr_sep_len = 2;
 424         }
 425         pos_hdr_sep = ptr-http_hdr->buffer;
 426
 427         // Point to the first line after the method line.
 428         hdr_ptr = strstr( http_hdr->buffer, "\n" )+1;
 429         do {
 430                 ptr = hdr_ptr;
 431                 while( *ptr!='\r' && *ptr!='\n' ) ptr++;
 432                 len = ptr-hdr_ptr;
 433                 if( len==0 ) break;
 434                 field = realloc(field, len+1);
 435                 if( field==NULL ) {
 436                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 437                         return -1;
 438                 }
 439                 strncpy( field, hdr_ptr, len );
 440                 field[len]='\0';
 441                 http_set_field( http_hdr, field );
 442                 hdr_ptr = ptr+((*ptr=='\r')?2:1);
 443         } while( hdr_ptr<(http_hdr->buffer+pos_hdr_sep) );
 444
 445         if( field!=NULL ) free( field );
 446
 447         if( pos_hdr_sep+hdr_sep_len<http_hdr->buffer_size ) {
 448                 // Response has data!
 449                 http_hdr->body = http_hdr->buffer+pos_hdr_sep+hdr_sep_len;
 450                 http_hdr->body_size = http_hdr->buffer_size-(pos_hdr_sep+hdr_sep_len);
 451         }
 452
 453         http_hdr->is_parsed = 1;
 454         return 0;
 455 }
 456
 457 char *
 458 http_build_request( HTTP_header_t *http_hdr ) {
 459         char *ptr, *uri=NULL;
 460         int len;
 461         HTTP_field_t *field;
 462         if( http_hdr==NULL ) return NULL;
 463
 464         if( http_hdr->method==NULL ) http_set_method( http_hdr, "GET");
 465         if( http_hdr->uri==NULL ) http_set_uri( http_hdr, "/");
 466         else {
 467                 uri = malloc(strlen(http_hdr->uri) + 1);
 468                 if( uri==NULL ) {
 469                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 470                         return NULL;
 471                 }
 472                 strcpy(uri,http_hdr->uri);
 473         }
 474
 475         //**** Compute the request length
 476         // Add the Method line
 477         len = strlen(http_hdr->method)+strlen(uri)+12;
 478         // Add the fields
 479         field = http_hdr->first_field;
 480         while( field!=NULL ) {
 481                 len += strlen(field->field_name)+2;
 482                 field = field->next;
 483         }
 484         // Add the CRLF
 485         len += 2;
 486         // Add the body
 487         if( http_hdr->body!=NULL ) {
 488                 len += http_hdr->body_size;
 489         }
 490         // Free the buffer if it was previously used
 491         if( http_hdr->buffer!=NULL ) {
 492                 free( http_hdr->buffer );
 493                 http_hdr->buffer = NULL;
 494         }
 495         http_hdr->buffer = malloc(len+1);
 496         if( http_hdr->buffer==NULL ) {
 497                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 498                 return NULL;
 499         }
 500         http_hdr->buffer_size = len;
 501
 502         //*** Building the request
 503         ptr = http_hdr->buffer;
 504         // Add the method line
 505         ptr += sprintf( ptr, "%s %s HTTP/1.%d\r\n", http_hdr->method, uri, http_hdr->http_minor_version );
 506         field = http_hdr->first_field;
 507         // Add the field
 508         while( field!=NULL ) {
 509                 ptr += sprintf( ptr, "%s\r\n", field->field_name );
 510                 field = field->next;
 511         }
 512         ptr += sprintf( ptr, "\r\n" );
 513         // Add the body
 514         if( http_hdr->body!=NULL ) {
 515                 memcpy( ptr, http_hdr->body, http_hdr->body_size );
 516         }
 517
 518         if( uri ) free( uri );
 519         return http_hdr->buffer;
 520 }
 521
 522 char *
 523 http_get_field( HTTP_header_t *http_hdr, const char *field_name ) {
 524         if( http_hdr==NULL || field_name==NULL ) return NULL;
 525         http_hdr->field_search_pos = http_hdr->first_field;
 526         http_hdr->field_search = realloc( http_hdr->field_search, strlen(field_name)+1 );
 527         if( http_hdr->field_search==NULL ) {
 528                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 529                 return NULL;
 530         }
 531         strcpy( http_hdr->field_search, field_name );
 532         return http_get_next_field( http_hdr );
 533 }
 534
 535 char *
 536 http_get_next_field( HTTP_header_t *http_hdr ) {
 537         char *ptr;
 538         HTTP_field_t *field;
 539         if( http_hdr==NULL ) return NULL;
 540
 541         field = http_hdr->field_search_pos;
 542         while( field!=NULL ) {
 543                 ptr = strstr( field->field_name, ":" );
 544                 if( ptr==NULL ) return NULL;
 545                 if( !strncasecmp( field->field_name, http_hdr->field_search, ptr-(field->field_name) ) ) {
 546                         ptr++;  // Skip the column
 547                         while( ptr[0]==' ' ) ptr++; // Skip the spaces if there is some
 548                         http_hdr->field_search_pos = field->next;
 549                         return ptr;     // return the value without the field name
 550                 }
 551                 field = field->next;
 552         }
 553         return NULL;
 554 }
 555
 556 void
 557 http_set_field( HTTP_header_t *http_hdr, const char *field_name ) {
 558         HTTP_field_t *new_field;
 559         if( http_hdr==NULL || field_name==NULL ) return;
 560
 561         new_field = malloc(sizeof(HTTP_field_t));
 562         if( new_field==NULL ) {
 563                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 564                 return;
 565         }
 566         new_field->next = NULL;
 567         new_field->field_name = malloc(strlen(field_name)+1);
 568         if( new_field->field_name==NULL ) {
 569                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 570                 free(new_field);
 571                 return;
 572         }
 573         strcpy( new_field->field_name, field_name );
 574
 575         if( http_hdr->last_field==NULL ) {
 576                 http_hdr->first_field = new_field;
 577         } else {
 578                 http_hdr->last_field->next = new_field;
 579         }
 580         http_hdr->last_field = new_field;
 581         http_hdr->field_nb++;
 582 }
 583
 584 void
 585 http_set_method( HTTP_header_t *http_hdr, const char *method ) {
 586         if( http_hdr==NULL || method==NULL ) return;
 587
 588         http_hdr->method = malloc(strlen(method)+1);
 589         if( http_hdr->method==NULL ) {
 590                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 591                 return;
 592         }
 593         strcpy( http_hdr->method, method );
 594 }
 595
 596 void
 597 http_set_uri( HTTP_header_t *http_hdr, const char *uri ) {
 598         if( http_hdr==NULL || uri==NULL ) return;
 599
 600         http_hdr->uri = malloc(strlen(uri)+1);
 601         if( http_hdr->uri==NULL ) {
 602                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 603                 return;
 604         }
 605         strcpy( http_hdr->uri, uri );
 606 }
 607
 608 int
 609 http_add_basic_authentication( HTTP_header_t *http_hdr, const char *username, const char *password ) {
 610         char *auth = NULL, *usr_pass = NULL, *b64_usr_pass = NULL;
 611         int encoded_len, pass_len=0, out_len;
 612         int res = -1;
 613         if( http_hdr==NULL || username==NULL ) return -1;
 614
 615         if( password!=NULL ) {
 616                 pass_len = strlen(password);
 617         }
 618
 619         usr_pass = malloc(strlen(username)+pass_len+2);
 620         if( usr_pass==NULL ) {
 621                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 622                 goto out;
 623         }
 624
 625         sprintf( usr_pass, "%s:%s", username, (password==NULL)?"":password );
 626
 627         // Base 64 encode with at least 33% more data than the original size
 628         encoded_len = strlen(usr_pass)*2;
 629         b64_usr_pass = malloc(encoded_len);
 630         if( b64_usr_pass==NULL ) {
 631                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 632                 goto out;
 633         }
 634
 635         out_len = base64_encode( usr_pass, strlen(usr_pass), b64_usr_pass, encoded_len);
 636         if( out_len<0 ) {
 637                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Base64 out overflow\n");
 638                 goto out;
 639         }
 640
 641         b64_usr_pass[out_len]='\0';
 642
 643         auth = malloc(encoded_len+22);
 644         if( auth==NULL ) {
 645                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 646                 goto out;
 647         }
 648
 649         sprintf( auth, "Authorization: Basic %s", b64_usr_pass);
 650         http_set_field( http_hdr, auth );
 651         res = 0;
 652
 653 out:
 654         free( usr_pass );
 655         free( b64_usr_pass );
 656         free( auth );
 657
 658         return res;
 659 }
 660
 661 void
 662 http_debug_hdr( HTTP_header_t *http_hdr ) {
 663         HTTP_field_t *field;
 664         int i = 0;
 665         if( http_hdr==NULL ) return;
 666
 667         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- START ---\n");
 668         mp_msg(MSGT_NETWORK,MSGL_V,"protocol:           [%s]\n", http_hdr->protocol );
 669         mp_msg(MSGT_NETWORK,MSGL_V,"http minor version: [%d]\n", http_hdr->http_minor_version );
 670         mp_msg(MSGT_NETWORK,MSGL_V,"uri:                [%s]\n", http_hdr->uri );
 671         mp_msg(MSGT_NETWORK,MSGL_V,"method:             [%s]\n", http_hdr->method );
 672         mp_msg(MSGT_NETWORK,MSGL_V,"status code:        [%d]\n", http_hdr->status_code );
 673         mp_msg(MSGT_NETWORK,MSGL_V,"reason phrase:      [%s]\n", http_hdr->reason_phrase );
 674         mp_msg(MSGT_NETWORK,MSGL_V,"body size:          [%zd]\n", http_hdr->body_size );
 675
 676         mp_msg(MSGT_NETWORK,MSGL_V,"Fields:\n");
 677         field = http_hdr->first_field;
 678         while( field!=NULL ) {
 679                 mp_msg(MSGT_NETWORK,MSGL_V," %d - %s\n", i++, field->field_name );
 680                 field = field->next;
 681         }
 682         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- END ---\n");
 683 }
 684
 685 int
 686 base64_encode(const void *enc, int encLen, char *out, int outMax) {
 687         static const char       b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 688
 689         unsigned char           *encBuf;
 690         int                     outLen;
 691         unsigned int            bits;
 692         unsigned int            shift;
 693
 694         encBuf = (unsigned char*)enc;
 695         outLen = 0;
 696         bits = 0;
 697         shift = 0;
 698         outMax &= ~3;
 699
 700         while(1) {
 701                 if( encLen>0 ) {
 702                         // Shift in byte
 703                         bits <<= 8;
 704                         bits |= *encBuf;
 705                         shift += 8;
 706                         // Next byte
 707                         encBuf++;
 708                         encLen--;
 709                 } else if( shift>0 ) {
 710                         // Pad last bits to 6 bits - will end next loop
 711                         bits <<= 6 - shift;
 712                         shift = 6;
 713                 } else {
 714                         // As per RFC 2045, section 6.8,
 715                         // pad output as necessary: 0 to 2 '=' chars.
 716                         while( outLen & 3 ){
 717                                 *out++ = '=';
 718                                 outLen++;
 719                         }
 720
 721                         return outLen;
 722                 }
 723
 724                 // Encode 6 bit segments
 725                 while( shift>=6 ) {
 726                         if (outLen >= outMax)
 727                                 return -1;
 728                         shift -= 6;
 729                         *out = b64[ (bits >> shift) & 0x3F ];
 730                         out++;
 731                         outLen++;
 732                 }
 733         }
 734 }
 735
 736 static void print_icy_metadata(HTTP_header_t *http_hdr) {
 737         const char *field_data;
 738         // note: I skip icy-notice1 and 2, as they contain html <BR>
 739         // and are IMHO useless info ::atmos
 740         if( (field_data = http_get_field(http_hdr, "icy-name")) != NULL )
 741                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Name   : %s\n", field_data);
 742         if( (field_data = http_get_field(http_hdr, "icy-genre")) != NULL )
 743                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Genre  : %s\n", field_data);
 744         if( (field_data = http_get_field(http_hdr, "icy-url")) != NULL )
 745                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Website: %s\n", field_data);
 746         // XXX: does this really mean public server? ::atmos
 747         if( (field_data = http_get_field(http_hdr, "icy-pub")) != NULL )
 748                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Public : %s\n", atoi(field_data)?"yes":"no");
 749         if( (field_data = http_get_field(http_hdr, "icy-br")) != NULL )
 750                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Bitrate: %skbit/s\n", field_data);
 751 }
 752
 753 //! If this function succeeds you must closesocket stream->fd
 754 static int http_streaming_start(stream_t *stream, int* file_format) {
 755         HTTP_header_t *http_hdr = NULL;
 756         unsigned int i;
 757         int fd = stream->fd;
 758         int res = STREAM_UNSUPPORTED;
 759         int redirect = 0;
 760         int auth_retry=0;
 761         int seekable=0;
 762         char *content_type;
 763         const char *content_length;
 764         char *next_url;
 765         URL_t *url = stream->streaming_ctrl->url;
 766
 767         do
 768         {
 769                 redirect = 0;
 770                 if (fd > 0) closesocket(fd);
 771                 fd = http_send_request( url, 0 );
 772                 if( fd<0 ) {
 773                         goto err_out;
 774                 }
 775
 776                 http_free(http_hdr);
 777                 http_hdr = http_read_response( fd );
 778                 if( http_hdr==NULL ) {
 779                         goto err_out;
 780                 }
 781
 782                 if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
 783                         http_debug_hdr( http_hdr );
 784                 }
 785
 786                 // Check if we can make partial content requests and thus seek in http-streams
 787                 if( http_hdr!=NULL && http_hdr->status_code==200 ) {
 788                     const char *accept_ranges = http_get_field(http_hdr,"Accept-Ranges");
 789                     const char *server = http_get_field(http_hdr, "Server");
 790                     if (accept_ranges)
 791                         seekable = strncmp(accept_ranges,"bytes",5)==0;
 792                     else if (server && strcmp(server, "gvs 1.0") == 0)
 793                         seekable = 1; // HACK for youtube incorrectly claiming not to support seeking
 794                 }
 795
 796                 print_icy_metadata(http_hdr);
 797
 798                 // Check if the response is an ICY status_code reason_phrase
 799                 if( !strcasecmp(http_hdr->protocol, "ICY") ||
 800                      http_get_field(http_hdr, "Icy-MetaInt") ) {
 801                         switch( http_hdr->status_code ) {
 802                                 case 200: { // OK
 803                                         char *field_data;
 804                                         // If content-type == video/nsv we most likely have a winamp video stream
 805                                         // otherwise it should be mp3. if there are more types consider adding mime type
 806                                         // handling like later
 807                                         if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "video/nsv") || !strcmp(field_data, "misc/ultravox")))
 808                                                 *file_format = DEMUXER_TYPE_NSV;
 809                                         else if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "audio/aacp") || !strcmp(field_data, "audio/aac")))
 810                                                 *file_format = DEMUXER_TYPE_AAC;
 811                                         else
 812                                                 *file_format = DEMUXER_TYPE_AUDIO;
 813                                         res = STREAM_ERROR;
 814                                         goto out;
 815                                 }
 816                                 case 400: // Server Full
 817                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server is full, skipping!\n");
 818                                         goto err_out;
 819                                 case 401: // Service Unavailable
 820                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return service unavailable, skipping!\n");
 821                                         goto err_out;
 822                                 case 403: // Service Forbidden
 823                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return 'Service Forbidden'\n");
 824                                         goto err_out;
 825                                 case 404: // Resource Not Found
 826                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server couldn't find requested stream, skipping!\n");
 827                                         goto err_out;
 828                                 default:
 829                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: unhandled ICY-Errorcode, contact MPlayer developers!\n");
 830                                         goto err_out;
 831                         }
 832                 }
 833
 834                 // Assume standard http if not ICY
 835                 switch( http_hdr->status_code ) {
 836                         case 200: // OK
 837                                 content_length = http_get_field(http_hdr, "Content-Length");
 838                                 if (content_length) {
 839                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", content_length);
 840                                         stream->end_pos = atoll(content_length);
 841                                 }
 842                                 // Look if we can use the Content-Type
 843                                 content_type = http_get_field( http_hdr, "Content-Type" );
 844                                 if( content_type!=NULL ) {
 845                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", content_type );
 846                                         // Check in the mime type table for a demuxer type
 847                                         i = 0;
 848                                         while(mime_type_table[i].mime_type != NULL) {
 849                                                 if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) {
 850                                                         *file_format = mime_type_table[i].demuxer_type;
 851                                                         res = seekable;
 852                                                         goto out;
 853                                                 }
 854                                                 i++;
 855                                         }
 856                                 }
 857                                 // Not found in the mime type table, don't fail,
 858                                 // we should try raw HTTP
 859                                 res = seekable;
 860                                 goto out;
 861                         // Redirect
 862                         case 301: // Permanently
 863                         case 302: // Temporarily
 864                         case 303: // See Other
 865                                 // TODO: RFC 2616, recommand to detect infinite redirection loops
 866                                 next_url = http_get_field( http_hdr, "Location" );
 867                                 if( next_url!=NULL ) {
 868                                         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 869                                         stream->streaming_ctrl->url = url_redirect( &url, next_url );
 870                                         if (!strcasecmp(url->protocol, "mms")) {
 871                                                 res = STREAM_REDIRECTED;
 872                                                 goto err_out;
 873                                         }
 874                                         if (strcasecmp(url->protocol, "http")) {
 875                                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Unsupported http %d redirect to %s protocol\n", http_hdr->status_code, url->protocol);
 876                                                 goto err_out;
 877                                         }
 878                                         if (is_ultravox)  {
 879                                                 free(url->protocol);
 880                                                 url->protocol = strdup("unsv");
 881                                         }
 882                                         redirect = 1;
 883                                 }
 884                                 break;
 885                         case 401: // Authentication required
 886                                 if( http_authenticate(http_hdr, url, &auth_retry)<0 )
 887                                         goto err_out;
 888                                 redirect = 1;
 889                                 break;
 890                         default:
 891                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 892                                 goto err_out;
 893                 }
 894         } while( redirect );
 895
 896 err_out:
 897         if (fd > 0) closesocket( fd );
 898         fd = -1;
 899         http_free( http_hdr );
 900         http_hdr = NULL;
 901 out:
 902         stream->streaming_ctrl->data = (void*)http_hdr;
 903         stream->fd = fd;
 904         return res;
 905 }
 906
 907 static int fixup_open(stream_t *stream,int seekable) {
 908         HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 909         int is_icy = http_hdr && http_get_field(http_hdr, "Icy-MetaInt");
 910         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 911
 912         stream->type = STREAMTYPE_STREAM;
 913         if(!is_icy && !is_ultravox && seekable)
 914         {
 915                 stream->flags |= MP_STREAM_SEEK;
 916                 stream->seek = http_seek;
 917         }
 918         stream->streaming_ctrl->bandwidth = network_bandwidth;
 919         if ((!is_icy && !is_ultravox) || scast_streaming_start(stream))
 920         if(nop_streaming_start( stream )) {
 921                 mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_start failed\n");
 922                 if (stream->fd >= 0)
 923                         closesocket(stream->fd);
 924                 stream->fd = -1;
 925                 streaming_ctrl_free(stream->streaming_ctrl);
 926                 stream->streaming_ctrl = NULL;
 927                 return STREAM_UNSUPPORTED;
 928         }
 929
 930         fixup_network_stream_cache(stream);
 931         return STREAM_OK;
 932 }
 933
 934 static int open_s1(stream_t *stream,int mode, void* opts, int* file_format) {
 935         int seekable=0;
 936         URL_t *url;
 937
 938         stream->streaming_ctrl = streaming_ctrl_new();
 939         if( stream->streaming_ctrl==NULL ) {
 940                 return STREAM_ERROR;
 941         }
 942         stream->streaming_ctrl->bandwidth = network_bandwidth;
 943         url = url_new(stream->url);
 944         stream->streaming_ctrl->url = check4proxies(url);
 945         url_free(url);
 946
 947         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(1), URL: %s\n", stream->url);
 948         seekable = http_streaming_start(stream, file_format);
 949         if((seekable < 0) || (*file_format == DEMUXER_TYPE_ASF)) {
 950                 if (stream->fd >= 0)
 951                         closesocket(stream->fd);
 952                 stream->fd = -1;
 953                 if (seekable == STREAM_REDIRECTED)
 954                         return seekable;
 955                 streaming_ctrl_free(stream->streaming_ctrl);
 956                 stream->streaming_ctrl = NULL;
 957                 return STREAM_UNSUPPORTED;
 958         }
 959
 960         return fixup_open(stream, seekable);
 961 }
 962
 963 static int open_s2(stream_t *stream,int mode, void* opts, int* file_format) {
 964         int seekable=0;
 965         URL_t *url;
 966
 967         stream->streaming_ctrl = streaming_ctrl_new();
 968         if( stream->streaming_ctrl==NULL ) {
 969                 return STREAM_ERROR;
 970         }
 971         stream->streaming_ctrl->bandwidth = network_bandwidth;
 972         url = url_new(stream->url);
 973         stream->streaming_ctrl->url = check4proxies(url);
 974         url_free(url);
 975
 976         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(2), URL: %s\n", stream->url);
 977         seekable = http_streaming_start(stream, file_format);
 978         if(seekable < 0) {
 979                 if (stream->fd >= 0)
 980                         closesocket(stream->fd);
 981                 stream->fd = -1;
 982                 streaming_ctrl_free(stream->streaming_ctrl);
 983                 stream->streaming_ctrl = NULL;
 984                 return STREAM_UNSUPPORTED;
 985         }
 986
 987         return fixup_open(stream, seekable);
 988 }
 989
 990
 991 const stream_info_t stream_info_http1 = {
 992   "http streaming",
 993   "null",
 994   "Bertrand, Albeau, Reimar Doeffinger, Arpi?",
 995   "plain http",
 996   open_s1,
 997   {"http", "http_proxy", "unsv", "icyx", "noicyx", NULL},
 998   NULL,
 999   0 // Urls are an option string
1000 };
1001
1002 const stream_info_t stream_info_http2 = {
1003   "http streaming",
1004   "null",
1005   "Bertrand, Albeu, Arpi? who?",
1006   "plain http, also used as fallback for many other protocols",
1007   open_s2,
1008   {"http", "http_proxy", "pnm", "mms", "mmsu", "mmst", "rtsp", NULL},   //all the others as fallback
1009   NULL,
1010   0 // Urls are an option string
1011 };