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 #include "help_mp.h"
  44
  45
  46 extern const mime_struct_t mime_type_table[];
  47 extern int stream_cache_size;
  48 extern int network_bandwidth;
  49
  50 typedef struct {
  51   unsigned metaint;
  52   unsigned metapos;
  53   int is_ultravox;
  54 } scast_data_t;
  55
  56 /**
  57  * \brief first read any data from sc->buffer then from fd
  58  * \param fd file descriptor to read data from
  59  * \param buffer buffer to read into
  60  * \param len how many bytes to read
  61  * \param sc streaming control containing buffer to read from first
  62  * \return len unless there is a read error or eof
  63  */
  64 static unsigned my_read(int fd, char *buffer, int len, streaming_ctrl_t *sc) {
  65   unsigned pos = 0;
  66   unsigned cp_len = sc->buffer_size - sc->buffer_pos;
  67   if (cp_len > len)
  68     cp_len = len;
  69   memcpy(buffer, &sc->buffer[sc->buffer_pos], cp_len);
  70   sc->buffer_pos += cp_len;
  71   pos += cp_len;
  72   while (pos < len) {
  73     int ret = recv(fd, &buffer[pos], len - pos, 0);
  74     if (ret <= 0)
  75       break;
  76     pos += ret;
  77   }
  78   return pos;
  79 }
  80
  81 /**
  82  * \brief read and process (i.e. discard *g*) a block of ultravox metadata
  83  * \param fd file descriptor to read from
  84  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
  85  * \return number of real data before next metadata block starts or 0 on error
  86  */
  87 static unsigned uvox_meta_read(int fd, streaming_ctrl_t *sc) {
  88   unsigned metaint;
  89   unsigned char info[6] = {0, 0, 0, 0, 0, 0};
  90   int info_read;
  91   do {
  92     info_read = my_read(fd, info, 1, sc);
  93     if (info[0] == 0x00)
  94       info_read = my_read(fd, info, 6, sc);
  95     else
  96       info_read += my_read(fd, &info[1], 5, sc);
  97     if (info_read != 6) // read error or eof
  98       return 0;
  99     // sync byte and reserved flags
 100     if (info[0] != 0x5a || (info[1] & 0xfc) != 0x00) {
 101       mp_msg(MSGT_DEMUXER, MSGL_ERR, "Invalid or unknown uvox metadata\n");
 102       return 0;
 103     }
 104     if (info[1] & 0x01)
 105       mp_msg(MSGT_DEMUXER, MSGL_WARN, "Encrypted ultravox data\n");
 106     metaint = info[4] << 8 | info[5];
 107     if ((info[3] & 0xf) < 0x07) { // discard any metadata nonsense
 108       char *metabuf = malloc(metaint);
 109       my_read(fd, metabuf, metaint, sc);
 110       free(metabuf);
 111     }
 112   } while ((info[3] & 0xf) < 0x07);
 113   return metaint;
 114 }
 115
 116 /**
 117  * \brief read one scast meta data entry and print it
 118  * \param fd file descriptor to read from
 119  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 120  */
 121 static void scast_meta_read(int fd, streaming_ctrl_t *sc) {
 122   unsigned char tmp = 0;
 123   unsigned metalen;
 124   my_read(fd, &tmp, 1, sc);
 125   metalen = tmp * 16;
 126   if (metalen > 0) {
 127     int i;
 128     uint8_t *info = malloc(metalen + 1);
 129     unsigned nlen = my_read(fd, info, metalen, sc);
 130     // avoid breaking the user's terminal too much
 131     if (nlen > 256) nlen = 256;
 132     for (i = 0; i < nlen; i++)
 133       if (info[i] && info[i] < 32) info[i] = '?';
 134     info[nlen] = 0;
 135     mp_msg(MSGT_DEMUXER, MSGL_INFO, "\nICY Info: %s\n", info);
 136     free(info);
 137   }
 138 }
 139
 140 /**
 141  * \brief read data from scast/ultravox stream without any metadata
 142  * \param fd file descriptor to read from
 143  * \param buffer buffer to read data into
 144  * \param size number of bytes to read
 145  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 146  */
 147 static int scast_streaming_read(int fd, char *buffer, int size,
 148                                 streaming_ctrl_t *sc) {
 149   scast_data_t *sd = (scast_data_t *)sc->data;
 150   unsigned block, ret;
 151   unsigned done = 0;
 152
 153   // first read remaining data up to next metadata
 154   block = sd->metaint - sd->metapos;
 155   if (block > size)
 156     block = size;
 157   ret = my_read(fd, buffer, block, sc);
 158   sd->metapos += ret;
 159   done += ret;
 160   if (ret != block) // read problems or eof
 161     size = done;
 162
 163   while (done < size) { // now comes the metadata
 164     if (sd->is_ultravox)
 165     {
 166       sd->metaint = uvox_meta_read(fd, sc);
 167       if (!sd->metaint)
 168         size = done;
 169     }
 170     else
 171       scast_meta_read(fd, sc); // read and display metadata
 172     sd->metapos = 0;
 173     block = size - done;
 174     if (block > sd->metaint)
 175       block = sd->metaint;
 176     ret = my_read(fd, &buffer[done], block, sc);
 177     sd->metapos += ret;
 178     done += ret;
 179     if (ret != block) // read problems or eof
 180       size = done;
 181   }
 182   return done;
 183 }
 184
 185 static int scast_streaming_start(stream_t *stream) {
 186   int metaint;
 187   scast_data_t *scast_data;
 188   HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 189   int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 190   if (!stream || stream->fd < 0 || !http_hdr)
 191     return -1;
 192   if (is_ultravox)
 193     metaint = 0;
 194   else {
 195     metaint = atoi(http_get_field(http_hdr, "Icy-MetaInt"));
 196     if (metaint <= 0)
 197       return -1;
 198   }
 199   stream->streaming_ctrl->buffer = malloc(http_hdr->body_size);
 200   stream->streaming_ctrl->buffer_size = http_hdr->body_size;
 201   stream->streaming_ctrl->buffer_pos = 0;
 202   memcpy(stream->streaming_ctrl->buffer, http_hdr->body, http_hdr->body_size);
 203   scast_data = malloc(sizeof(scast_data_t));
 204   scast_data->metaint = metaint;
 205   scast_data->metapos = 0;
 206   scast_data->is_ultravox = is_ultravox;
 207   http_free(http_hdr);
 208   stream->streaming_ctrl->data = scast_data;
 209   stream->streaming_ctrl->streaming_read = scast_streaming_read;
 210   stream->streaming_ctrl->streaming_seek = NULL;
 211   stream->streaming_ctrl->prebuffer_size = 64 * 1024; // 64 KBytes
 212   stream->streaming_ctrl->buffering = 1;
 213   stream->streaming_ctrl->status = streaming_playing_e;
 214   return 0;
 215 }
 216
 217 static int nop_streaming_start( stream_t *stream ) {
 218         HTTP_header_t *http_hdr = NULL;
 219         char *next_url=NULL;
 220         URL_t *rd_url=NULL;
 221         int fd,ret;
 222         if( stream==NULL ) return -1;
 223
 224         fd = stream->fd;
 225         if( fd<0 ) {
 226                 fd = http_send_request( stream->streaming_ctrl->url, 0 );
 227                 if( fd<0 ) return -1;
 228                 http_hdr = http_read_response( fd );
 229                 if( http_hdr==NULL ) return -1;
 230
 231                 switch( http_hdr->status_code ) {
 232                         case 200: // OK
 233                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
 234                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
 235                                 if( http_hdr->body_size>0 ) {
 236                                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 237                                                 http_free( http_hdr );
 238                                                 return -1;
 239                                         }
 240                                 }
 241                                 break;
 242                         // Redirect
 243                         case 301: // Permanently
 244                         case 302: // Temporarily
 245                         case 303: // See Other
 246                                 ret=-1;
 247                                 next_url = http_get_field( http_hdr, "Location" );
 248
 249                                 if (next_url != NULL)
 250                                         rd_url=url_new(next_url);
 251
 252                                 if (next_url != NULL && rd_url != NULL) {
 253                                         mp_msg(MSGT_NETWORK,MSGL_STATUS,"Redirected: Using this url instead %s\n",next_url);
 254                                                         stream->streaming_ctrl->url=check4proxies(rd_url);
 255                                         ret=nop_streaming_start(stream); //recursively get streaming started
 256                                 } else {
 257                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Redirection failed\n");
 258                                         closesocket( fd );
 259                                         fd = -1;
 260                                 }
 261                                 return ret;
 262                                 break;
 263                         case 401: //Authorization required
 264                         case 403: //Forbidden
 265                         case 404: //Not found
 266                         case 500: //Server Error
 267                         default:
 268                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned code %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 269                                 closesocket( fd );
 270                                 fd = -1;
 271                                 return -1;
 272                                 break;
 273                 }
 274                 stream->fd = fd;
 275         } else {
 276                 http_hdr = (HTTP_header_t*)stream->streaming_ctrl->data;
 277                 if( http_hdr->body_size>0 ) {
 278                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 279                                 http_free( http_hdr );
 280                                 stream->streaming_ctrl->data = NULL;
 281                                 return -1;
 282                         }
 283                 }
 284         }
 285
 286         if( http_hdr ) {
 287                 http_free( http_hdr );
 288                 stream->streaming_ctrl->data = NULL;
 289         }
 290
 291         stream->streaming_ctrl->streaming_read = nop_streaming_read;
 292         stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
 293         stream->streaming_ctrl->prebuffer_size = 64*1024; // 64 KBytes
 294         stream->streaming_ctrl->buffering = 1;
 295         stream->streaming_ctrl->status = streaming_playing_e;
 296         return 0;
 297 }
 298
 299 HTTP_header_t *
 300 http_new_header(void) {
 301         HTTP_header_t *http_hdr;
 302
 303         http_hdr = malloc(sizeof(HTTP_header_t));
 304         if( http_hdr==NULL ) return NULL;
 305         memset( http_hdr, 0, sizeof(HTTP_header_t) );
 306
 307         return http_hdr;
 308 }
 309
 310 void
 311 http_free( HTTP_header_t *http_hdr ) {
 312         HTTP_field_t *field, *field2free;
 313         if( http_hdr==NULL ) return;
 314         if( http_hdr->protocol!=NULL ) free( http_hdr->protocol );
 315         if( http_hdr->uri!=NULL ) free( http_hdr->uri );
 316         if( http_hdr->reason_phrase!=NULL ) free( http_hdr->reason_phrase );
 317         if( http_hdr->field_search!=NULL ) free( http_hdr->field_search );
 318         if( http_hdr->method!=NULL ) free( http_hdr->method );
 319         if( http_hdr->buffer!=NULL ) free( http_hdr->buffer );
 320         field = http_hdr->first_field;
 321         while( field!=NULL ) {
 322                 field2free = field;
 323                 if (field->field_name)
 324                   free(field->field_name);
 325                 field = field->next;
 326                 free( field2free );
 327         }
 328         free( http_hdr );
 329         http_hdr = NULL;
 330 }
 331
 332 int
 333 http_response_append( HTTP_header_t *http_hdr, char *response, int length ) {
 334         if( http_hdr==NULL || response==NULL || length<0 ) return -1;
 335
 336         if( (unsigned)length > SIZE_MAX - http_hdr->buffer_size - 1) {
 337                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Bad size in memory (re)allocation\n");
 338                 return -1;
 339         }
 340         http_hdr->buffer = realloc( http_hdr->buffer, http_hdr->buffer_size+length+1 );
 341         if( http_hdr->buffer==NULL ) {
 342                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory (re)allocation failed\n");
 343                 return -1;
 344         }
 345         memcpy( http_hdr->buffer+http_hdr->buffer_size, response, length );
 346         http_hdr->buffer_size += length;
 347         http_hdr->buffer[http_hdr->buffer_size]=0; // close the string!
 348         return http_hdr->buffer_size;
 349 }
 350
 351 int
 352 http_is_header_entire( HTTP_header_t *http_hdr ) {
 353         if( http_hdr==NULL ) return -1;
 354         if( http_hdr->buffer==NULL ) return 0; // empty
 355
 356         if( strstr(http_hdr->buffer, "\r\n\r\n")==NULL &&
 357             strstr(http_hdr->buffer, "\n\n")==NULL ) return 0;
 358         return 1;
 359 }
 360
 361 int
 362 http_response_parse( HTTP_header_t *http_hdr ) {
 363         char *hdr_ptr, *ptr;
 364         char *field=NULL;
 365         int pos_hdr_sep, hdr_sep_len;
 366         size_t len;
 367         if( http_hdr==NULL ) return -1;
 368         if( http_hdr->is_parsed ) return 0;
 369
 370         // Get the protocol
 371         hdr_ptr = strstr( http_hdr->buffer, " " );
 372         if( hdr_ptr==NULL ) {
 373                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. No space separator found.\n");
 374                 return -1;
 375         }
 376         len = hdr_ptr-http_hdr->buffer;
 377         http_hdr->protocol = malloc(len+1);
 378         if( http_hdr->protocol==NULL ) {
 379                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 380                 return -1;
 381         }
 382         strncpy( http_hdr->protocol, http_hdr->buffer, len );
 383         http_hdr->protocol[len]='\0';
 384         if( !strncasecmp( http_hdr->protocol, "HTTP", 4) ) {
 385                 if( sscanf( http_hdr->protocol+5,"1.%d", &(http_hdr->http_minor_version) )!=1 ) {
 386                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get HTTP minor version.\n");
 387                         return -1;
 388                 }
 389         }
 390
 391         // Get the status code
 392         if( sscanf( ++hdr_ptr, "%d", &(http_hdr->status_code) )!=1 ) {
 393                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get status code.\n");
 394                 return -1;
 395         }
 396         hdr_ptr += 4;
 397
 398         // Get the reason phrase
 399         ptr = strstr( hdr_ptr, "\n" );
 400         if( hdr_ptr==NULL ) {
 401                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get the reason phrase.\n");
 402                 return -1;
 403         }
 404         len = ptr-hdr_ptr;
 405         http_hdr->reason_phrase = malloc(len+1);
 406         if( http_hdr->reason_phrase==NULL ) {
 407                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 408                 return -1;
 409         }
 410         strncpy( http_hdr->reason_phrase, hdr_ptr, len );
 411         if( http_hdr->reason_phrase[len-1]=='\r' ) {
 412                 len--;
 413         }
 414         http_hdr->reason_phrase[len]='\0';
 415
 416         // Set the position of the header separator: \r\n\r\n
 417         hdr_sep_len = 4;
 418         ptr = strstr( http_hdr->buffer, "\r\n\r\n" );
 419         if( ptr==NULL ) {
 420                 ptr = strstr( http_hdr->buffer, "\n\n" );
 421                 if( ptr==NULL ) {
 422                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Header may be incomplete. No CRLF CRLF found.\n");
 423                         return -1;
 424                 }
 425                 hdr_sep_len = 2;
 426         }
 427         pos_hdr_sep = ptr-http_hdr->buffer;
 428
 429         // Point to the first line after the method line.
 430         hdr_ptr = strstr( http_hdr->buffer, "\n" )+1;
 431         do {
 432                 ptr = hdr_ptr;
 433                 while( *ptr!='\r' && *ptr!='\n' ) ptr++;
 434                 len = ptr-hdr_ptr;
 435                 if( len==0 ) break;
 436                 field = realloc(field, len+1);
 437                 if( field==NULL ) {
 438                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 439                         return -1;
 440                 }
 441                 strncpy( field, hdr_ptr, len );
 442                 field[len]='\0';
 443                 http_set_field( http_hdr, field );
 444                 hdr_ptr = ptr+((*ptr=='\r')?2:1);
 445         } while( hdr_ptr<(http_hdr->buffer+pos_hdr_sep) );
 446
 447         if( field!=NULL ) free( field );
 448
 449         if( pos_hdr_sep+hdr_sep_len<http_hdr->buffer_size ) {
 450                 // Response has data!
 451                 http_hdr->body = http_hdr->buffer+pos_hdr_sep+hdr_sep_len;
 452                 http_hdr->body_size = http_hdr->buffer_size-(pos_hdr_sep+hdr_sep_len);
 453         }
 454
 455         http_hdr->is_parsed = 1;
 456         return 0;
 457 }
 458
 459 char *
 460 http_build_request( HTTP_header_t *http_hdr ) {
 461         char *ptr, *uri=NULL;
 462         int len;
 463         HTTP_field_t *field;
 464         if( http_hdr==NULL ) return NULL;
 465
 466         if( http_hdr->method==NULL ) http_set_method( http_hdr, "GET");
 467         if( http_hdr->uri==NULL ) http_set_uri( http_hdr, "/");
 468         else {
 469                 uri = malloc(strlen(http_hdr->uri) + 1);
 470                 if( uri==NULL ) {
 471                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 472                         return NULL;
 473                 }
 474                 strcpy(uri,http_hdr->uri);
 475         }
 476
 477         //**** Compute the request length
 478         // Add the Method line
 479         len = strlen(http_hdr->method)+strlen(uri)+12;
 480         // Add the fields
 481         field = http_hdr->first_field;
 482         while( field!=NULL ) {
 483                 len += strlen(field->field_name)+2;
 484                 field = field->next;
 485         }
 486         // Add the CRLF
 487         len += 2;
 488         // Add the body
 489         if( http_hdr->body!=NULL ) {
 490                 len += http_hdr->body_size;
 491         }
 492         // Free the buffer if it was previously used
 493         if( http_hdr->buffer!=NULL ) {
 494                 free( http_hdr->buffer );
 495                 http_hdr->buffer = NULL;
 496         }
 497         http_hdr->buffer = malloc(len+1);
 498         if( http_hdr->buffer==NULL ) {
 499                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 500                 return NULL;
 501         }
 502         http_hdr->buffer_size = len;
 503
 504         //*** Building the request
 505         ptr = http_hdr->buffer;
 506         // Add the method line
 507         ptr += sprintf( ptr, "%s %s HTTP/1.%d\r\n", http_hdr->method, uri, http_hdr->http_minor_version );
 508         field = http_hdr->first_field;
 509         // Add the field
 510         while( field!=NULL ) {
 511                 ptr += sprintf( ptr, "%s\r\n", field->field_name );
 512                 field = field->next;
 513         }
 514         ptr += sprintf( ptr, "\r\n" );
 515         // Add the body
 516         if( http_hdr->body!=NULL ) {
 517                 memcpy( ptr, http_hdr->body, http_hdr->body_size );
 518         }
 519
 520         if( uri ) free( uri );
 521         return http_hdr->buffer;
 522 }
 523
 524 char *
 525 http_get_field( HTTP_header_t *http_hdr, const char *field_name ) {
 526         if( http_hdr==NULL || field_name==NULL ) return NULL;
 527         http_hdr->field_search_pos = http_hdr->first_field;
 528         http_hdr->field_search = realloc( http_hdr->field_search, strlen(field_name)+1 );
 529         if( http_hdr->field_search==NULL ) {
 530                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 531                 return NULL;
 532         }
 533         strcpy( http_hdr->field_search, field_name );
 534         return http_get_next_field( http_hdr );
 535 }
 536
 537 char *
 538 http_get_next_field( HTTP_header_t *http_hdr ) {
 539         char *ptr;
 540         HTTP_field_t *field;
 541         if( http_hdr==NULL ) return NULL;
 542
 543         field = http_hdr->field_search_pos;
 544         while( field!=NULL ) {
 545                 ptr = strstr( field->field_name, ":" );
 546                 if( ptr==NULL ) return NULL;
 547                 if( !strncasecmp( field->field_name, http_hdr->field_search, ptr-(field->field_name) ) ) {
 548                         ptr++;  // Skip the column
 549                         while( ptr[0]==' ' ) ptr++; // Skip the spaces if there is some
 550                         http_hdr->field_search_pos = field->next;
 551                         return ptr;     // return the value without the field name
 552                 }
 553                 field = field->next;
 554         }
 555         return NULL;
 556 }
 557
 558 void
 559 http_set_field( HTTP_header_t *http_hdr, const char *field_name ) {
 560         HTTP_field_t *new_field;
 561         if( http_hdr==NULL || field_name==NULL ) return;
 562
 563         new_field = malloc(sizeof(HTTP_field_t));
 564         if( new_field==NULL ) {
 565                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 566                 return;
 567         }
 568         new_field->next = NULL;
 569         new_field->field_name = malloc(strlen(field_name)+1);
 570         if( new_field->field_name==NULL ) {
 571                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 572                 free(new_field);
 573                 return;
 574         }
 575         strcpy( new_field->field_name, field_name );
 576
 577         if( http_hdr->last_field==NULL ) {
 578                 http_hdr->first_field = new_field;
 579         } else {
 580                 http_hdr->last_field->next = new_field;
 581         }
 582         http_hdr->last_field = new_field;
 583         http_hdr->field_nb++;
 584 }
 585
 586 void
 587 http_set_method( HTTP_header_t *http_hdr, const char *method ) {
 588         if( http_hdr==NULL || method==NULL ) return;
 589
 590         http_hdr->method = malloc(strlen(method)+1);
 591         if( http_hdr->method==NULL ) {
 592                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 593                 return;
 594         }
 595         strcpy( http_hdr->method, method );
 596 }
 597
 598 void
 599 http_set_uri( HTTP_header_t *http_hdr, const char *uri ) {
 600         if( http_hdr==NULL || uri==NULL ) return;
 601
 602         http_hdr->uri = malloc(strlen(uri)+1);
 603         if( http_hdr->uri==NULL ) {
 604                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 605                 return;
 606         }
 607         strcpy( http_hdr->uri, uri );
 608 }
 609
 610 int
 611 http_add_basic_authentication( HTTP_header_t *http_hdr, const char *username, const char *password ) {
 612         char *auth = NULL, *usr_pass = NULL, *b64_usr_pass = NULL;
 613         int encoded_len, pass_len=0, out_len;
 614         int res = -1;
 615         if( http_hdr==NULL || username==NULL ) return -1;
 616
 617         if( password!=NULL ) {
 618                 pass_len = strlen(password);
 619         }
 620
 621         usr_pass = malloc(strlen(username)+pass_len+2);
 622         if( usr_pass==NULL ) {
 623                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 624                 goto out;
 625         }
 626
 627         sprintf( usr_pass, "%s:%s", username, (password==NULL)?"":password );
 628
 629         // Base 64 encode with at least 33% more data than the original size
 630         encoded_len = strlen(usr_pass)*2;
 631         b64_usr_pass = malloc(encoded_len);
 632         if( b64_usr_pass==NULL ) {
 633                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 634                 goto out;
 635         }
 636
 637         out_len = base64_encode( usr_pass, strlen(usr_pass), b64_usr_pass, encoded_len);
 638         if( out_len<0 ) {
 639                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Base64 out overflow\n");
 640                 goto out;
 641         }
 642
 643         b64_usr_pass[out_len]='\0';
 644
 645         auth = malloc(encoded_len+22);
 646         if( auth==NULL ) {
 647                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 648                 goto out;
 649         }
 650
 651         sprintf( auth, "Authorization: Basic %s", b64_usr_pass);
 652         http_set_field( http_hdr, auth );
 653         res = 0;
 654
 655 out:
 656         free( usr_pass );
 657         free( b64_usr_pass );
 658         free( auth );
 659
 660         return res;
 661 }
 662
 663 void
 664 http_debug_hdr( HTTP_header_t *http_hdr ) {
 665         HTTP_field_t *field;
 666         int i = 0;
 667         if( http_hdr==NULL ) return;
 668
 669         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- START ---\n");
 670         mp_msg(MSGT_NETWORK,MSGL_V,"protocol:           [%s]\n", http_hdr->protocol );
 671         mp_msg(MSGT_NETWORK,MSGL_V,"http minor version: [%d]\n", http_hdr->http_minor_version );
 672         mp_msg(MSGT_NETWORK,MSGL_V,"uri:                [%s]\n", http_hdr->uri );
 673         mp_msg(MSGT_NETWORK,MSGL_V,"method:             [%s]\n", http_hdr->method );
 674         mp_msg(MSGT_NETWORK,MSGL_V,"status code:        [%d]\n", http_hdr->status_code );
 675         mp_msg(MSGT_NETWORK,MSGL_V,"reason phrase:      [%s]\n", http_hdr->reason_phrase );
 676         mp_msg(MSGT_NETWORK,MSGL_V,"body size:          [%d]\n", http_hdr->body_size );
 677
 678         mp_msg(MSGT_NETWORK,MSGL_V,"Fields:\n");
 679         field = http_hdr->first_field;
 680         while( field!=NULL ) {
 681                 mp_msg(MSGT_NETWORK,MSGL_V," %d - %s\n", i++, field->field_name );
 682                 field = field->next;
 683         }
 684         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- END ---\n");
 685 }
 686
 687 int
 688 base64_encode(const void *enc, int encLen, char *out, int outMax) {
 689         static const char       b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 690
 691         unsigned char           *encBuf;
 692         int                     outLen;
 693         unsigned int            bits;
 694         unsigned int            shift;
 695
 696         encBuf = (unsigned char*)enc;
 697         outLen = 0;
 698         bits = 0;
 699         shift = 0;
 700         outMax &= ~3;
 701
 702         while(1) {
 703                 if( encLen>0 ) {
 704                         // Shift in byte
 705                         bits <<= 8;
 706                         bits |= *encBuf;
 707                         shift += 8;
 708                         // Next byte
 709                         encBuf++;
 710                         encLen--;
 711                 } else if( shift>0 ) {
 712                         // Pad last bits to 6 bits - will end next loop
 713                         bits <<= 6 - shift;
 714                         shift = 6;
 715                 } else {
 716                         // As per RFC 2045, section 6.8,
 717                         // pad output as necessary: 0 to 2 '=' chars.
 718                         while( outLen & 3 ){
 719                                 *out++ = '=';
 720                                 outLen++;
 721                         }
 722
 723                         return outLen;
 724                 }
 725
 726                 // Encode 6 bit segments
 727                 while( shift>=6 ) {
 728                         if (outLen >= outMax)
 729                                 return -1;
 730                         shift -= 6;
 731                         *out = b64[ (bits >> shift) & 0x3F ];
 732                         out++;
 733                         outLen++;
 734                 }
 735         }
 736 }
 737
 738 static void print_icy_metadata(HTTP_header_t *http_hdr) {
 739         const char *field_data;
 740         // note: I skip icy-notice1 and 2, as they contain html <BR>
 741         // and are IMHO useless info ::atmos
 742         if( (field_data = http_get_field(http_hdr, "icy-name")) != NULL )
 743                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Name   : %s\n", field_data);
 744         if( (field_data = http_get_field(http_hdr, "icy-genre")) != NULL )
 745                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Genre  : %s\n", field_data);
 746         if( (field_data = http_get_field(http_hdr, "icy-url")) != NULL )
 747                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Website: %s\n", field_data);
 748         // XXX: does this really mean public server? ::atmos
 749         if( (field_data = http_get_field(http_hdr, "icy-pub")) != NULL )
 750                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Public : %s\n", atoi(field_data)?"yes":"no");
 751         if( (field_data = http_get_field(http_hdr, "icy-br")) != NULL )
 752                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Bitrate: %skbit/s\n", field_data);
 753 }
 754
 755 //! If this function succeeds you must closesocket stream->fd
 756 static int http_streaming_start(stream_t *stream, int* file_format) {
 757         HTTP_header_t *http_hdr = NULL;
 758         unsigned int i;
 759         int fd = stream->fd;
 760         int res = STREAM_UNSUPPORTED;
 761         int redirect = 0;
 762         int auth_retry=0;
 763         int seekable=0;
 764         char *content_type;
 765         const char *content_length;
 766         char *next_url;
 767         URL_t *url = stream->streaming_ctrl->url;
 768
 769         do
 770         {
 771                 redirect = 0;
 772                 if (fd > 0) closesocket(fd);
 773                 fd = http_send_request( url, 0 );
 774                 if( fd<0 ) {
 775                         goto err_out;
 776                 }
 777
 778                 http_free(http_hdr);
 779                 http_hdr = http_read_response( fd );
 780                 if( http_hdr==NULL ) {
 781                         goto err_out;
 782                 }
 783
 784                 if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
 785                         http_debug_hdr( http_hdr );
 786                 }
 787
 788                 // Check if we can make partial content requests and thus seek in http-streams
 789                 if( http_hdr!=NULL && http_hdr->status_code==200 ) {
 790                     const char *accept_ranges = http_get_field(http_hdr,"Accept-Ranges");
 791                     const char *server = http_get_field(http_hdr, "Server");
 792                     if (accept_ranges)
 793                         seekable = strncmp(accept_ranges,"bytes",5)==0;
 794                     else if (server && strcmp(server, "gvs 1.0") == 0)
 795                         seekable = 1; // HACK for youtube incorrectly claiming not to support seeking
 796                 }
 797
 798                 print_icy_metadata(http_hdr);
 799
 800                 // Check if the response is an ICY status_code reason_phrase
 801                 if( !strcasecmp(http_hdr->protocol, "ICY") ||
 802                      http_get_field(http_hdr, "Icy-MetaInt") ) {
 803                         switch( http_hdr->status_code ) {
 804                                 case 200: { // OK
 805                                         char *field_data;
 806                                         // If content-type == video/nsv we most likely have a winamp video stream
 807                                         // otherwise it should be mp3. if there are more types consider adding mime type
 808                                         // handling like later
 809                                         if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "video/nsv") || !strcmp(field_data, "misc/ultravox")))
 810                                                 *file_format = DEMUXER_TYPE_NSV;
 811                                         else if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "audio/aacp") || !strcmp(field_data, "audio/aac")))
 812                                                 *file_format = DEMUXER_TYPE_AAC;
 813                                         else
 814                                                 *file_format = DEMUXER_TYPE_AUDIO;
 815                                         res = STREAM_ERROR;
 816                                         goto out;
 817                                 }
 818                                 case 400: // Server Full
 819                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server is full, skipping!\n");
 820                                         goto err_out;
 821                                 case 401: // Service Unavailable
 822                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return service unavailable, skipping!\n");
 823                                         goto err_out;
 824                                 case 403: // Service Forbidden
 825                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return 'Service Forbidden'\n");
 826                                         goto err_out;
 827                                 case 404: // Resource Not Found
 828                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server couldn't find requested stream, skipping!\n");
 829                                         goto err_out;
 830                                 default:
 831                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: unhandled ICY-Errorcode, contact MPlayer developers!\n");
 832                                         goto err_out;
 833                         }
 834                 }
 835
 836                 // Assume standard http if not ICY
 837                 switch( http_hdr->status_code ) {
 838                         case 200: // OK
 839                                 content_length = http_get_field(http_hdr, "Content-Length");
 840                                 if (content_length) {
 841                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", content_length);
 842                                         stream->end_pos = atoll(content_length);
 843                                 }
 844                                 // Look if we can use the Content-Type
 845                                 content_type = http_get_field( http_hdr, "Content-Type" );
 846                                 if( content_type!=NULL ) {
 847                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", content_type );
 848                                         // Check in the mime type table for a demuxer type
 849                                         i = 0;
 850                                         while(mime_type_table[i].mime_type != NULL) {
 851                                                 if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) {
 852                                                         *file_format = mime_type_table[i].demuxer_type;
 853                                                         res = seekable;
 854                                                         goto out;
 855                                                 }
 856                                                 i++;
 857                                         }
 858                                 }
 859                                 // Not found in the mime type table, don't fail,
 860                                 // we should try raw HTTP
 861                                 res = seekable;
 862                                 goto out;
 863                         // Redirect
 864                         case 301: // Permanently
 865                         case 302: // Temporarily
 866                         case 303: // See Other
 867                                 // TODO: RFC 2616, recommand to detect infinite redirection loops
 868                                 next_url = http_get_field( http_hdr, "Location" );
 869                                 if( next_url!=NULL ) {
 870                                         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 871                                         stream->streaming_ctrl->url = url_redirect( &url, next_url );
 872                                         if (!strcasecmp(url->protocol, "mms")) {
 873                                                 res = STREAM_REDIRECTED;
 874                                                 goto err_out;
 875                                         }
 876                                         if (strcasecmp(url->protocol, "http")) {
 877                                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Unsupported http %d redirect to %s protocol\n", http_hdr->status_code, url->protocol);
 878                                                 goto err_out;
 879                                         }
 880                                         if (is_ultravox)  {
 881                                                 free(url->protocol);
 882                                                 url->protocol = strdup("unsv");
 883                                         }
 884                                         redirect = 1;
 885                                 }
 886                                 break;
 887                         case 401: // Authentication required
 888                                 if( http_authenticate(http_hdr, url, &auth_retry)<0 )
 889                                         goto err_out;
 890                                 redirect = 1;
 891                                 break;
 892                         default:
 893                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 894                                 goto err_out;
 895                 }
 896         } while( redirect );
 897
 898 err_out:
 899         if (fd > 0) closesocket( fd );
 900         fd = -1;
 901         http_free( http_hdr );
 902         http_hdr = NULL;
 903 out:
 904         stream->streaming_ctrl->data = (void*)http_hdr;
 905         stream->fd = fd;
 906         return res;
 907 }
 908
 909 static int fixup_open(stream_t *stream,int seekable) {
 910         HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 911         int is_icy = http_hdr && http_get_field(http_hdr, "Icy-MetaInt");
 912         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 913
 914         stream->type = STREAMTYPE_STREAM;
 915         if(!is_icy && !is_ultravox && seekable)
 916         {
 917                 stream->flags |= MP_STREAM_SEEK;
 918                 stream->seek = http_seek;
 919         }
 920         stream->streaming_ctrl->bandwidth = network_bandwidth;
 921         if ((!is_icy && !is_ultravox) || scast_streaming_start(stream))
 922         if(nop_streaming_start( stream )) {
 923                 mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_start failed\n");
 924                 if (stream->fd >= 0)
 925                         closesocket(stream->fd);
 926                 stream->fd = -1;
 927                 streaming_ctrl_free(stream->streaming_ctrl);
 928                 stream->streaming_ctrl = NULL;
 929                 return STREAM_UNSUPPORTED;
 930         }
 931
 932         fixup_network_stream_cache(stream);
 933         return STREAM_OK;
 934 }
 935
 936 static int open_s1(stream_t *stream,int mode, void* opts, int* file_format) {
 937         int seekable=0;
 938         URL_t *url;
 939
 940         stream->streaming_ctrl = streaming_ctrl_new();
 941         if( stream->streaming_ctrl==NULL ) {
 942                 return STREAM_ERROR;
 943         }
 944         stream->streaming_ctrl->bandwidth = network_bandwidth;
 945         url = url_new(stream->url);
 946         stream->streaming_ctrl->url = check4proxies(url);
 947         url_free(url);
 948
 949         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(1), URL: %s\n", stream->url);
 950         seekable = http_streaming_start(stream, file_format);
 951         if((seekable < 0) || (*file_format == DEMUXER_TYPE_ASF)) {
 952                 if (stream->fd >= 0)
 953                         closesocket(stream->fd);
 954                 stream->fd = -1;
 955                 if (seekable == STREAM_REDIRECTED)
 956                         return seekable;
 957                 streaming_ctrl_free(stream->streaming_ctrl);
 958                 stream->streaming_ctrl = NULL;
 959                 return STREAM_UNSUPPORTED;
 960         }
 961
 962         return fixup_open(stream, seekable);
 963 }
 964
 965 static int open_s2(stream_t *stream,int mode, void* opts, int* file_format) {
 966         int seekable=0;
 967         URL_t *url;
 968
 969         stream->streaming_ctrl = streaming_ctrl_new();
 970         if( stream->streaming_ctrl==NULL ) {
 971                 return STREAM_ERROR;
 972         }
 973         stream->streaming_ctrl->bandwidth = network_bandwidth;
 974         url = url_new(stream->url);
 975         stream->streaming_ctrl->url = check4proxies(url);
 976         url_free(url);
 977
 978         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(2), URL: %s\n", stream->url);
 979         seekable = http_streaming_start(stream, file_format);
 980         if(seekable < 0) {
 981                 if (stream->fd >= 0)
 982                         closesocket(stream->fd);
 983                 stream->fd = -1;
 984                 streaming_ctrl_free(stream->streaming_ctrl);
 985                 stream->streaming_ctrl = NULL;
 986                 return STREAM_UNSUPPORTED;
 987         }
 988
 989         return fixup_open(stream, seekable);
 990 }
 991
 992
 993 const stream_info_t stream_info_http1 = {
 994   "http streaming",
 995   "null",
 996   "Bertrand, Albeau, Reimar Doeffinger, Arpi?",
 997   "plain http",
 998   open_s1,
 999   {"http", "http_proxy", "unsv", "icyx", "noicyx", NULL},
1000   NULL,
1001   0 // Urls are an option string
1002 };
1003
1004 const stream_info_t stream_info_http2 = {
1005   "http streaming",
1006   "null",
1007   "Bertrand, Albeu, Arpi? who?",
1008   "plain http, also used as fallback for many other protocols",
1009   open_s2,
1010   {"http", "http_proxy", "pnm", "mms", "mmsu", "mmst", "rtsp", NULL},   //all the others as fallback
1011   NULL,
1012   0 // Urls are an option string
1013 };