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 #include "libavutil/base64.h"
  45
  46 #include <libavutil/avutil.h>
  47
  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                         case 307: // Temporarily (since HTTP/1.1)
 247                                 ret=-1;
 248                                 next_url = http_get_field( http_hdr, "Location" );
 249
 250                                 if (next_url != NULL)
 251                                         rd_url=url_new(next_url);
 252
 253                                 if (next_url != NULL && rd_url != NULL) {
 254                                         mp_msg(MSGT_NETWORK,MSGL_STATUS,"Redirected: Using this url instead %s\n",next_url);
 255                                                         stream->streaming_ctrl->url=check4proxies(rd_url);
 256                                         ret=nop_streaming_start(stream); //recursively get streaming started
 257                                 } else {
 258                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Redirection failed\n");
 259                                         closesocket( fd );
 260                                         fd = -1;
 261                                 }
 262                                 return ret;
 263                                 break;
 264                         case 401: //Authorization required
 265                         case 403: //Forbidden
 266                         case 404: //Not found
 267                         case 500: //Server Error
 268                         default:
 269                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned code %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 270                                 closesocket( fd );
 271                                 fd = -1;
 272                                 return -1;
 273                                 break;
 274                 }
 275                 stream->fd = fd;
 276         } else {
 277                 http_hdr = (HTTP_header_t*)stream->streaming_ctrl->data;
 278                 if( http_hdr->body_size>0 ) {
 279                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 280                                 http_free( http_hdr );
 281                                 stream->streaming_ctrl->data = NULL;
 282                                 return -1;
 283                         }
 284                 }
 285         }
 286
 287         if( http_hdr ) {
 288                 http_free( http_hdr );
 289                 stream->streaming_ctrl->data = NULL;
 290         }
 291
 292         stream->streaming_ctrl->streaming_read = nop_streaming_read;
 293         stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
 294         stream->streaming_ctrl->prebuffer_size = 64*1024; // 64 KBytes
 295         stream->streaming_ctrl->buffering = 1;
 296         stream->streaming_ctrl->status = streaming_playing_e;
 297         return 0;
 298 }
 299
 300 HTTP_header_t *
 301 http_new_header(void) {
 302         HTTP_header_t *http_hdr;
 303
 304         http_hdr = calloc(1, sizeof(*http_hdr));
 305         if( http_hdr==NULL ) return NULL;
 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         free(http_hdr->protocol);
 315         free(http_hdr->uri);
 316         free(http_hdr->reason_phrase);
 317         free(http_hdr->field_search);
 318         free(http_hdr->method);
 319         free(http_hdr->buffer);
 320         field = http_hdr->first_field;
 321         while( field!=NULL ) {
 322                 field2free = field;
 323                 free(field->field_name);
 324                 field = field->next;
 325                 free( field2free );
 326         }
 327         free( http_hdr );
 328         http_hdr = NULL;
 329 }
 330
 331 int
 332 http_response_append( HTTP_header_t *http_hdr, char *response, int length ) {
 333         if( http_hdr==NULL || response==NULL || length<0 ) return -1;
 334
 335         if( (unsigned)length > SIZE_MAX - http_hdr->buffer_size - 1) {
 336                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Bad size in memory (re)allocation\n");
 337                 return -1;
 338         }
 339         http_hdr->buffer = realloc( http_hdr->buffer, http_hdr->buffer_size+length+1 );
 340         if( http_hdr->buffer==NULL ) {
 341                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory (re)allocation failed\n");
 342                 return -1;
 343         }
 344         memcpy( http_hdr->buffer+http_hdr->buffer_size, response, length );
 345         http_hdr->buffer_size += length;
 346         http_hdr->buffer[http_hdr->buffer_size]=0; // close the string!
 347         return http_hdr->buffer_size;
 348 }
 349
 350 int
 351 http_is_header_entire( HTTP_header_t *http_hdr ) {
 352         if( http_hdr==NULL ) return -1;
 353         if( http_hdr->buffer==NULL ) return 0; // empty
 354
 355         if( strstr(http_hdr->buffer, "\r\n\r\n")==NULL &&
 356             strstr(http_hdr->buffer, "\n\n")==NULL ) return 0;
 357         return 1;
 358 }
 359
 360 int
 361 http_response_parse( HTTP_header_t *http_hdr ) {
 362         char *hdr_ptr, *ptr;
 363         char *field=NULL;
 364         int pos_hdr_sep, hdr_sep_len;
 365         size_t len;
 366         if( http_hdr==NULL ) return -1;
 367         if( http_hdr->is_parsed ) return 0;
 368
 369         // Get the protocol
 370         hdr_ptr = strstr( http_hdr->buffer, " " );
 371         if( hdr_ptr==NULL ) {
 372                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. No space separator found.\n");
 373                 return -1;
 374         }
 375         len = hdr_ptr-http_hdr->buffer;
 376         http_hdr->protocol = malloc(len+1);
 377         if( http_hdr->protocol==NULL ) {
 378                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 379                 return -1;
 380         }
 381         strncpy( http_hdr->protocol, http_hdr->buffer, len );
 382         http_hdr->protocol[len]='\0';
 383         if( !strncasecmp( http_hdr->protocol, "HTTP", 4) ) {
 384                 if( sscanf( http_hdr->protocol+5,"1.%d", &(http_hdr->http_minor_version) )!=1 ) {
 385                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get HTTP minor version.\n");
 386                         return -1;
 387                 }
 388         }
 389
 390         // Get the status code
 391         if( sscanf( ++hdr_ptr, "%d", &(http_hdr->status_code) )!=1 ) {
 392                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get status code.\n");
 393                 return -1;
 394         }
 395         hdr_ptr += 4;
 396
 397         // Get the reason phrase
 398         ptr = strstr( hdr_ptr, "\n" );
 399         if( hdr_ptr==NULL ) {
 400                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get the reason phrase.\n");
 401                 return -1;
 402         }
 403         len = ptr-hdr_ptr;
 404         http_hdr->reason_phrase = malloc(len+1);
 405         if( http_hdr->reason_phrase==NULL ) {
 406                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 407                 return -1;
 408         }
 409         strncpy( http_hdr->reason_phrase, hdr_ptr, len );
 410         if( http_hdr->reason_phrase[len-1]=='\r' ) {
 411                 len--;
 412         }
 413         http_hdr->reason_phrase[len]='\0';
 414
 415         // Set the position of the header separator: \r\n\r\n
 416         hdr_sep_len = 4;
 417         ptr = strstr( http_hdr->buffer, "\r\n\r\n" );
 418         if( ptr==NULL ) {
 419                 ptr = strstr( http_hdr->buffer, "\n\n" );
 420                 if( ptr==NULL ) {
 421                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Header may be incomplete. No CRLF CRLF found.\n");
 422                         return -1;
 423                 }
 424                 hdr_sep_len = 2;
 425         }
 426         pos_hdr_sep = ptr-http_hdr->buffer;
 427
 428         // Point to the first line after the method line.
 429         hdr_ptr = strstr( http_hdr->buffer, "\n" )+1;
 430         do {
 431                 ptr = hdr_ptr;
 432                 while( *ptr!='\r' && *ptr!='\n' ) ptr++;
 433                 len = ptr-hdr_ptr;
 434                 if( len==0 ) break;
 435                 field = realloc(field, len+1);
 436                 if( field==NULL ) {
 437                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 438                         return -1;
 439                 }
 440                 strncpy( field, hdr_ptr, len );
 441                 field[len]='\0';
 442                 http_set_field( http_hdr, field );
 443                 hdr_ptr = ptr+((*ptr=='\r')?2:1);
 444         } while( hdr_ptr<(http_hdr->buffer+pos_hdr_sep) );
 445
 446         free(field);
 447
 448         if( pos_hdr_sep+hdr_sep_len<http_hdr->buffer_size ) {
 449                 // Response has data!
 450                 http_hdr->body = http_hdr->buffer+pos_hdr_sep+hdr_sep_len;
 451                 http_hdr->body_size = http_hdr->buffer_size-(pos_hdr_sep+hdr_sep_len);
 452         }
 453
 454         http_hdr->is_parsed = 1;
 455         return 0;
 456 }
 457
 458 char *
 459 http_build_request( HTTP_header_t *http_hdr ) {
 460         char *ptr, *uri=NULL;
 461         int len;
 462         HTTP_field_t *field;
 463         if( http_hdr==NULL ) return NULL;
 464
 465         if( http_hdr->method==NULL ) http_set_method( http_hdr, "GET");
 466         if( http_hdr->uri==NULL ) http_set_uri( http_hdr, "/");
 467         else {
 468                 uri = malloc(strlen(http_hdr->uri) + 1);
 469                 if( uri==NULL ) {
 470                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 471                         return NULL;
 472                 }
 473                 strcpy(uri,http_hdr->uri);
 474         }
 475
 476         //**** Compute the request length
 477         // Add the Method line
 478         len = strlen(http_hdr->method)+strlen(uri)+12;
 479         // Add the fields
 480         field = http_hdr->first_field;
 481         while( field!=NULL ) {
 482                 len += strlen(field->field_name)+2;
 483                 field = field->next;
 484         }
 485         // Add the CRLF
 486         len += 2;
 487         // Add the body
 488         if( http_hdr->body!=NULL ) {
 489                 len += http_hdr->body_size;
 490         }
 491         // Free the buffer if it was previously used
 492         if( http_hdr->buffer!=NULL ) {
 493                 free( http_hdr->buffer );
 494                 http_hdr->buffer = NULL;
 495         }
 496         http_hdr->buffer = malloc(len+1);
 497         if( http_hdr->buffer==NULL ) {
 498                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 499                 return NULL;
 500         }
 501         http_hdr->buffer_size = len;
 502
 503         //*** Building the request
 504         ptr = http_hdr->buffer;
 505         // Add the method line
 506         ptr += sprintf( ptr, "%s %s HTTP/1.%d\r\n", http_hdr->method, uri, http_hdr->http_minor_version );
 507         field = http_hdr->first_field;
 508         // Add the field
 509         while( field!=NULL ) {
 510                 ptr += sprintf( ptr, "%s\r\n", field->field_name );
 511                 field = field->next;
 512         }
 513         ptr += sprintf( ptr, "\r\n" );
 514         // Add the body
 515         if( http_hdr->body!=NULL ) {
 516                 memcpy( ptr, http_hdr->body, http_hdr->body_size );
 517         }
 518
 519         free(uri);
 520         return http_hdr->buffer;
 521 }
 522
 523 char *
 524 http_get_field( HTTP_header_t *http_hdr, const char *field_name ) {
 525         if( http_hdr==NULL || field_name==NULL ) return NULL;
 526         http_hdr->field_search_pos = http_hdr->first_field;
 527         http_hdr->field_search = realloc( http_hdr->field_search, strlen(field_name)+1 );
 528         if( http_hdr->field_search==NULL ) {
 529                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 530                 return NULL;
 531         }
 532         strcpy( http_hdr->field_search, field_name );
 533         return http_get_next_field( http_hdr );
 534 }
 535
 536 char *
 537 http_get_next_field( HTTP_header_t *http_hdr ) {
 538         char *ptr;
 539         HTTP_field_t *field;
 540         if( http_hdr==NULL ) return NULL;
 541
 542         field = http_hdr->field_search_pos;
 543         while( field!=NULL ) {
 544                 ptr = strstr( field->field_name, ":" );
 545                 if( ptr==NULL ) return NULL;
 546                 if( !strncasecmp( field->field_name, http_hdr->field_search, ptr-(field->field_name) ) ) {
 547                         ptr++;  // Skip the column
 548                         while( ptr[0]==' ' ) ptr++; // Skip the spaces if there is some
 549                         http_hdr->field_search_pos = field->next;
 550                         return ptr;     // return the value without the field name
 551                 }
 552                 field = field->next;
 553         }
 554         return NULL;
 555 }
 556
 557 void
 558 http_set_field( HTTP_header_t *http_hdr, const char *field_name ) {
 559         HTTP_field_t *new_field;
 560         if( http_hdr==NULL || field_name==NULL ) return;
 561
 562         new_field = malloc(sizeof(HTTP_field_t));
 563         if( new_field==NULL ) {
 564                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 565                 return;
 566         }
 567         new_field->next = NULL;
 568         new_field->field_name = malloc(strlen(field_name)+1);
 569         if( new_field->field_name==NULL ) {
 570                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 571                 free(new_field);
 572                 return;
 573         }
 574         strcpy( new_field->field_name, field_name );
 575
 576         if( http_hdr->last_field==NULL ) {
 577                 http_hdr->first_field = new_field;
 578         } else {
 579                 http_hdr->last_field->next = new_field;
 580         }
 581         http_hdr->last_field = new_field;
 582         http_hdr->field_nb++;
 583 }
 584
 585 void
 586 http_set_method( HTTP_header_t *http_hdr, const char *method ) {
 587         if( http_hdr==NULL || method==NULL ) return;
 588
 589         http_hdr->method = malloc(strlen(method)+1);
 590         if( http_hdr->method==NULL ) {
 591                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 592                 return;
 593         }
 594         strcpy( http_hdr->method, method );
 595 }
 596
 597 void
 598 http_set_uri( HTTP_header_t *http_hdr, const char *uri ) {
 599         if( http_hdr==NULL || uri==NULL ) return;
 600
 601         http_hdr->uri = malloc(strlen(uri)+1);
 602         if( http_hdr->uri==NULL ) {
 603                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 604                 return;
 605         }
 606         strcpy( http_hdr->uri, uri );
 607 }
 608
 609 static int
 610 http_add_authentication( HTTP_header_t *http_hdr, const char *username, const char *password, const char *auth_str ) {
 611         char *auth = NULL, *usr_pass = NULL, *b64_usr_pass = NULL;
 612         int encoded_len, pass_len=0;
 613         size_t auth_len, usr_pass_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_len = strlen(username) + 1 + pass_len;
 622         usr_pass = malloc(usr_pass_len + 1);
 623         if( usr_pass==NULL ) {
 624                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 625                 goto out;
 626         }
 627
 628         sprintf( usr_pass, "%s:%s", username, (password==NULL)?"":password );
 629
 630         encoded_len = AV_BASE64_SIZE(usr_pass_len);
 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         av_base64_encode(b64_usr_pass, encoded_len, usr_pass, usr_pass_len);
 637
 638         auth_len = encoded_len + 100;
 639         auth = malloc(auth_len);
 640         if( auth==NULL ) {
 641                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 642                 goto out;
 643         }
 644
 645         snprintf(auth, auth_len, "%s: Basic %s", auth_str, 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 int
 658 http_add_basic_authentication( HTTP_header_t *http_hdr, const char *username, const char *password ) {
 659         return http_add_authentication(http_hdr, username, password, "Authorization");
 660 }
 661
 662 int
 663 http_add_basic_proxy_authentication( HTTP_header_t *http_hdr, const char *username, const char *password ) {
 664         return http_add_authentication(http_hdr, username, password, "Proxy-Authorization");
 665 }
 666
 667 void
 668 http_debug_hdr( HTTP_header_t *http_hdr ) {
 669         HTTP_field_t *field;
 670         int i = 0;
 671         if( http_hdr==NULL ) return;
 672
 673         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- START ---\n");
 674         mp_msg(MSGT_NETWORK,MSGL_V,"protocol:           [%s]\n", http_hdr->protocol );
 675         mp_msg(MSGT_NETWORK,MSGL_V,"http minor version: [%d]\n", http_hdr->http_minor_version );
 676         mp_msg(MSGT_NETWORK,MSGL_V,"uri:                [%s]\n", http_hdr->uri );
 677         mp_msg(MSGT_NETWORK,MSGL_V,"method:             [%s]\n", http_hdr->method );
 678         mp_msg(MSGT_NETWORK,MSGL_V,"status code:        [%d]\n", http_hdr->status_code );
 679         mp_msg(MSGT_NETWORK,MSGL_V,"reason phrase:      [%s]\n", http_hdr->reason_phrase );
 680         mp_msg(MSGT_NETWORK,MSGL_V,"body size:          [%zd]\n", http_hdr->body_size );
 681
 682         mp_msg(MSGT_NETWORK,MSGL_V,"Fields:\n");
 683         field = http_hdr->first_field;
 684         while( field!=NULL ) {
 685                 mp_msg(MSGT_NETWORK,MSGL_V," %d - %s\n", i++, field->field_name );
 686                 field = field->next;
 687         }
 688         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- END ---\n");
 689 }
 690
 691 static void print_icy_metadata(HTTP_header_t *http_hdr) {
 692         const char *field_data;
 693         // note: I skip icy-notice1 and 2, as they contain html <BR>
 694         // and are IMHO useless info ::atmos
 695         if( (field_data = http_get_field(http_hdr, "icy-name")) != NULL )
 696                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Name   : %s\n", field_data);
 697         if( (field_data = http_get_field(http_hdr, "icy-genre")) != NULL )
 698                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Genre  : %s\n", field_data);
 699         if( (field_data = http_get_field(http_hdr, "icy-url")) != NULL )
 700                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Website: %s\n", field_data);
 701         // XXX: does this really mean public server? ::atmos
 702         if( (field_data = http_get_field(http_hdr, "icy-pub")) != NULL )
 703                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Public : %s\n", atoi(field_data)?"yes":"no");
 704         if( (field_data = http_get_field(http_hdr, "icy-br")) != NULL )
 705                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Bitrate: %skbit/s\n", field_data);
 706 }
 707
 708 //! If this function succeeds you must closesocket stream->fd
 709 static int http_streaming_start(stream_t *stream, int* file_format) {
 710         HTTP_header_t *http_hdr = NULL;
 711         int fd = stream->fd;
 712         int res = STREAM_UNSUPPORTED;
 713         int redirect = 0;
 714         int auth_retry=0;
 715         int seekable=0;
 716         char *content_type;
 717         const char *content_length;
 718         char *next_url;
 719         URL_t *url = stream->streaming_ctrl->url;
 720
 721         do
 722         {
 723                 redirect = 0;
 724                 if (fd > 0) closesocket(fd);
 725                 fd = http_send_request( url, 0 );
 726                 if( fd<0 ) {
 727                         goto err_out;
 728                 }
 729
 730                 http_free(http_hdr);
 731                 http_hdr = http_read_response( fd );
 732                 if( http_hdr==NULL ) {
 733                         goto err_out;
 734                 }
 735
 736                 if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
 737                         http_debug_hdr( http_hdr );
 738                 }
 739
 740                 // Check if we can make partial content requests and thus seek in http-streams
 741                 if( http_hdr!=NULL && http_hdr->status_code==200 ) {
 742                     const char *accept_ranges = http_get_field(http_hdr,"Accept-Ranges");
 743                     const char *server = http_get_field(http_hdr, "Server");
 744                     if (accept_ranges)
 745                         seekable = strncmp(accept_ranges,"bytes",5)==0;
 746                     else if (server && (strcmp(server, "gvs 1.0") == 0 ||
 747                                         strncmp(server, "MakeMKV", 7) == 0)) {
 748                         // HACK for youtube and MakeMKV incorrectly claiming not to support seeking
 749                         mp_msg(MSGT_NETWORK, MSGL_WARN, "Broken webserver, incorrectly claims to not support Accept-Ranges\n");
 750                         seekable = 1;
 751                     }
 752                 }
 753
 754                 print_icy_metadata(http_hdr);
 755
 756                 // Check if the response is an ICY status_code reason_phrase
 757                 if( !strcasecmp(http_hdr->protocol, "ICY") ||
 758                      http_get_field(http_hdr, "Icy-MetaInt") ) {
 759                         switch( http_hdr->status_code ) {
 760                                 case 200: { // OK
 761                                         char *field_data;
 762                                         // If content-type == video/nsv we most likely have a winamp video stream
 763                                         // otherwise it should be mp3. if there are more types consider adding mime type
 764                                         // handling like later
 765                                         if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "video/nsv") || !strcmp(field_data, "misc/ultravox")))
 766                                                 *file_format = DEMUXER_TYPE_NSV;
 767                                         else if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "audio/aacp") || !strcmp(field_data, "audio/aac")))
 768                                                 *file_format = DEMUXER_TYPE_AAC;
 769                                         else
 770                                                 *file_format = DEMUXER_TYPE_AUDIO;
 771                                         res = STREAM_ERROR;
 772                                         goto out;
 773                                 }
 774                                 case 400: // Server Full
 775                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server is full, skipping!\n");
 776                                         goto err_out;
 777                                 case 401: // Service Unavailable
 778                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return service unavailable, skipping!\n");
 779                                         goto err_out;
 780                                 case 403: // Service Forbidden
 781                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return 'Service Forbidden'\n");
 782                                         goto err_out;
 783                                 case 404: // Resource Not Found
 784                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server couldn't find requested stream, skipping!\n");
 785                                         goto err_out;
 786                                 default:
 787                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: unhandled ICY-Errorcode, contact MPlayer developers!\n");
 788                                         goto err_out;
 789                         }
 790                 }
 791
 792                 // Assume standard http if not ICY
 793                 switch( http_hdr->status_code ) {
 794                         case 200: // OK
 795                                 content_length = http_get_field(http_hdr, "Content-Length");
 796                                 if (content_length) {
 797                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", content_length);
 798                                         stream->end_pos = atoll(content_length);
 799                                 }
 800                                 // Look if we can use the Content-Type
 801                                 content_type = http_get_field( http_hdr, "Content-Type" );
 802                                 if( content_type!=NULL ) {
 803                                         unsigned int i;
 804
 805                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", content_type );
 806                                         // Check in the mime type table for a demuxer type
 807                                         for (i = 0; mime_type_table[i].mime_type != NULL; i++) {
 808                                                 if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) {
 809                                                         *file_format = mime_type_table[i].demuxer_type;
 810                                                         res = seekable;
 811                                                         goto out;
 812                                                 }
 813                                         }
 814                                 }
 815                                 // Not found in the mime type table, don't fail,
 816                                 // we should try raw HTTP
 817                                 res = seekable;
 818                                 goto out;
 819                         // Redirect
 820                         case 301: // Permanently
 821                         case 302: // Temporarily
 822                         case 303: // See Other
 823                         case 307: // Temporarily (since HTTP/1.1)
 824                                 // TODO: RFC 2616, recommand to detect infinite redirection loops
 825                                 next_url = http_get_field( http_hdr, "Location" );
 826                                 if( next_url!=NULL ) {
 827                                         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 828                                         stream->streaming_ctrl->url = url_redirect( &url, next_url );
 829                                         if (!strcasecmp(url->protocol, "mms")) {
 830                                                 res = STREAM_REDIRECTED;
 831                                                 goto err_out;
 832                                         }
 833                                         if (strcasecmp(url->protocol, "http")) {
 834                                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Unsupported http %d redirect to %s protocol\n", http_hdr->status_code, url->protocol);
 835                                                 goto err_out;
 836                                         }
 837                                         if (is_ultravox)  {
 838                                                 free(url->protocol);
 839                                                 url->protocol = strdup("unsv");
 840                                         }
 841                                         redirect = 1;
 842                                 }
 843                                 break;
 844                         case 401: // Authentication required
 845                                 if( http_authenticate(http_hdr, url, &auth_retry)<0 )
 846                                         goto err_out;
 847                                 redirect = 1;
 848                                 break;
 849                         default:
 850                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 851                                 goto err_out;
 852                 }
 853         } while( redirect );
 854
 855 err_out:
 856         if (fd > 0) closesocket( fd );
 857         fd = -1;
 858         http_free( http_hdr );
 859         http_hdr = NULL;
 860 out:
 861         stream->streaming_ctrl->data = (void*)http_hdr;
 862         stream->fd = fd;
 863         return res;
 864 }
 865
 866 static int fixup_open(stream_t *stream,int seekable) {
 867         HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 868         int is_icy = http_hdr && http_get_field(http_hdr, "Icy-MetaInt");
 869         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 870
 871         stream->type = STREAMTYPE_STREAM;
 872         if(!is_icy && !is_ultravox && seekable)
 873         {
 874                 stream->flags |= MP_STREAM_SEEK;
 875                 stream->seek = http_seek;
 876         }
 877         stream->streaming_ctrl->bandwidth = network_bandwidth;
 878         if ((!is_icy && !is_ultravox) || scast_streaming_start(stream))
 879         if(nop_streaming_start( stream )) {
 880                 mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_start failed\n");
 881                 if (stream->fd >= 0)
 882                         closesocket(stream->fd);
 883                 stream->fd = -1;
 884                 streaming_ctrl_free(stream->streaming_ctrl);
 885                 stream->streaming_ctrl = NULL;
 886                 return STREAM_UNSUPPORTED;
 887         }
 888
 889         return STREAM_OK;
 890 }
 891
 892 static int open_s1(stream_t *stream,int mode, void* opts, int* file_format) {
 893         int seekable=0;
 894         URL_t *url;
 895
 896         stream->streaming_ctrl = streaming_ctrl_new();
 897         if( stream->streaming_ctrl==NULL ) {
 898                 return STREAM_ERROR;
 899         }
 900         stream->streaming_ctrl->bandwidth = network_bandwidth;
 901         url = url_new(stream->url);
 902         stream->streaming_ctrl->url = check4proxies(url);
 903         url_free(url);
 904
 905         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(1), URL: %s\n", stream->url);
 906         seekable = http_streaming_start(stream, file_format);
 907         if((seekable < 0) || (*file_format == DEMUXER_TYPE_ASF)) {
 908                 if (stream->fd >= 0)
 909                         closesocket(stream->fd);
 910                 stream->fd = -1;
 911                 if (seekable == STREAM_REDIRECTED)
 912                         return seekable;
 913                 streaming_ctrl_free(stream->streaming_ctrl);
 914                 stream->streaming_ctrl = NULL;
 915                 return STREAM_UNSUPPORTED;
 916         }
 917
 918         return fixup_open(stream, seekable);
 919 }
 920
 921 static int open_s2(stream_t *stream,int mode, void* opts, int* file_format) {
 922         int seekable=0;
 923         URL_t *url;
 924
 925         stream->streaming_ctrl = streaming_ctrl_new();
 926         if( stream->streaming_ctrl==NULL ) {
 927                 return STREAM_ERROR;
 928         }
 929         stream->streaming_ctrl->bandwidth = network_bandwidth;
 930         url = url_new(stream->url);
 931         stream->streaming_ctrl->url = check4proxies(url);
 932         url_free(url);
 933
 934         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(2), URL: %s\n", stream->url);
 935         seekable = http_streaming_start(stream, file_format);
 936         if(seekable < 0) {
 937                 if (stream->fd >= 0)
 938                         closesocket(stream->fd);
 939                 stream->fd = -1;
 940                 streaming_ctrl_free(stream->streaming_ctrl);
 941                 stream->streaming_ctrl = NULL;
 942                 return STREAM_UNSUPPORTED;
 943         }
 944
 945         return fixup_open(stream, seekable);
 946 }
 947
 948
 949 const stream_info_t stream_info_http1 = {
 950   "http streaming",
 951   "null",
 952   "Bertrand, Albeau, Reimar Doeffinger, Arpi?",
 953   "plain http",
 954   open_s1,
 955   {"http", "http_proxy", "unsv", "icyx", "noicyx", NULL},
 956   NULL,
 957   0 // Urls are an option string
 958 };
 959
 960 const stream_info_t stream_info_http2 = {
 961   "http streaming",
 962   "null",
 963   "Bertrand, Albeu, Arpi? who?",
 964   "plain http, also used as fallback for many other protocols",
 965   open_s2,
 966   {"http", "http_proxy", "pnm", "mms", "mmsu", "mmst", "rtsp", NULL},   //all the others as fallback
 967   NULL,
 968   0 // Urls are an option string
 969 };