stream/http.c

   1 /*
   2  * HTTP Helper
   3  * by Bertrand Baudet <bertrand_baudet@yahoo.com>
   4  * (C) 2001, MPlayer team.
   5  */
   6
   7 #include "config.h"
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <unistd.h>
  13
  14 #ifndef HAVE_WINSOCK2
  15 #define closesocket close
  16 #else
  17 #include <winsock2.h>
  18 #include <ws2tcpip.h>
  19 #endif
  20
  21 #include "http.h"
  22 #include "url.h"
  23 #include "mp_msg.h"
  24
  25 #include "stream.h"
  26 #include "libmpdemux/demuxer.h"
  27 #include "network.h"
  28 #include "help_mp.h"
  29
  30
  31 extern const mime_struct_t mime_type_table[];
  32 extern int stream_cache_size;
  33 extern int network_bandwidth;
  34
  35 extern int http_seek(stream_t *stream, off_t pos);
  36
  37 typedef struct {
  38   unsigned metaint;
  39   unsigned metapos;
  40   int is_ultravox;
  41 } scast_data_t;
  42
  43 /**
  44  * \brief first read any data from sc->buffer then from fd
  45  * \param fd file descriptor to read data from
  46  * \param buffer buffer to read into
  47  * \param len how many bytes to read
  48  * \param sc streaming control containing buffer to read from first
  49  * \return len unless there is a read error or eof
  50  */
  51 static unsigned my_read(int fd, char *buffer, int len, streaming_ctrl_t *sc) {
  52   unsigned pos = 0;
  53   unsigned cp_len = sc->buffer_size - sc->buffer_pos;
  54   if (cp_len > len)
  55     cp_len = len;
  56   memcpy(buffer, &sc->buffer[sc->buffer_pos], cp_len);
  57   sc->buffer_pos += cp_len;
  58   pos += cp_len;
  59   while (pos < len) {
  60     int ret = recv(fd, &buffer[pos], len - pos, 0);
  61     if (ret <= 0)
  62       break;
  63     pos += ret;
  64   }
  65   return pos;
  66 }
  67
  68 /**
  69  * \brief read and process (i.e. discard *g*) a block of ultravox metadata
  70  * \param fd file descriptor to read from
  71  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
  72  * \return number of real data before next metadata block starts or 0 on error
  73  */
  74 static unsigned uvox_meta_read(int fd, streaming_ctrl_t *sc) {
  75   unsigned metaint;
  76   unsigned char info[6] = {0, 0, 0, 0, 0, 0};
  77   int info_read;
  78   do {
  79     info_read = my_read(fd, info, 1, sc);
  80     if (info[0] == 0x00)
  81       info_read = my_read(fd, info, 6, sc);
  82     else
  83       info_read += my_read(fd, &info[1], 5, sc);
  84     if (info_read != 6) // read error or eof
  85       return 0;
  86     // sync byte and reserved flags
  87     if (info[0] != 0x5a || (info[1] & 0xfc) != 0x00) {
  88       mp_msg(MSGT_DEMUXER, MSGL_ERR, "Invalid or unknown uvox metadata\n");
  89       return 0;
  90     }
  91     if (info[1] & 0x01)
  92       mp_msg(MSGT_DEMUXER, MSGL_WARN, "Encrypted ultravox data\n");
  93     metaint = info[4] << 8 | info[5];
  94     if ((info[3] & 0xf) < 0x07) { // discard any metadata nonsense
  95       char *metabuf = malloc(metaint);
  96       my_read(fd, metabuf, metaint, sc);
  97       free(metabuf);
  98     }
  99   } while ((info[3] & 0xf) < 0x07);
 100   return metaint;
 101 }
 102
 103 /**
 104  * \brief read one scast meta data entry and print it
 105  * \param fd file descriptor to read from
 106  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 107  */
 108 static void scast_meta_read(int fd, streaming_ctrl_t *sc) {
 109   unsigned char tmp = 0;
 110   unsigned metalen;
 111   my_read(fd, &tmp, 1, sc);
 112   metalen = tmp * 16;
 113   if (metalen > 0) {
 114     char *info = malloc(metalen + 1);
 115     unsigned nlen = my_read(fd, info, metalen, sc);
 116     info[nlen] = 0;
 117     mp_msg(MSGT_DEMUXER, MSGL_INFO, "\nICY Info: %s\n", info);
 118     free(info);
 119   }
 120 }
 121
 122 /**
 123  * \brief read data from scast/ultravox stream without any metadata
 124  * \param fd file descriptor to read from
 125  * \param buffer buffer to read data into
 126  * \param size number of bytes to read
 127  * \param sc streaming_ctrl_t whose buffer is consumed before reading from fd
 128  */
 129 static int scast_streaming_read(int fd, char *buffer, int size,
 130                                 streaming_ctrl_t *sc) {
 131   scast_data_t *sd = (scast_data_t *)sc->data;
 132   unsigned block, ret;
 133   unsigned done = 0;
 134
 135   // first read remaining data up to next metadata
 136   block = sd->metaint - sd->metapos;
 137   if (block > size)
 138     block = size;
 139   ret = my_read(fd, buffer, block, sc);
 140   sd->metapos += ret;
 141   done += ret;
 142   if (ret != block) // read problems or eof
 143     size = done;
 144
 145   while (done < size) { // now comes the metadata
 146     if (sd->is_ultravox)
 147     {
 148       sd->metaint = uvox_meta_read(fd, sc);
 149       if (!sd->metaint)
 150         size = done;
 151     }
 152     else
 153       scast_meta_read(fd, sc); // read and display metadata
 154     sd->metapos = 0;
 155     block = size - done;
 156     if (block > sd->metaint)
 157       block = sd->metaint;
 158     ret = my_read(fd, &buffer[done], block, sc);
 159     sd->metapos += ret;
 160     done += ret;
 161     if (ret != block) // read problems or eof
 162       size = done;
 163   }
 164   return done;
 165 }
 166
 167 static int scast_streaming_start(stream_t *stream) {
 168   int metaint;
 169   scast_data_t *scast_data;
 170   HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 171   int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 172   if (!stream || stream->fd < 0 || !http_hdr)
 173     return -1;
 174   if (is_ultravox)
 175     metaint = 0;
 176   else {
 177     metaint = atoi(http_get_field(http_hdr, "Icy-MetaInt"));
 178     if (metaint <= 0)
 179       return -1;
 180   }
 181   stream->streaming_ctrl->buffer = malloc(http_hdr->body_size);
 182   stream->streaming_ctrl->buffer_size = http_hdr->body_size;
 183   stream->streaming_ctrl->buffer_pos = 0;
 184   memcpy(stream->streaming_ctrl->buffer, http_hdr->body, http_hdr->body_size);
 185   scast_data = malloc(sizeof(scast_data_t));
 186   scast_data->metaint = metaint;
 187   scast_data->metapos = 0;
 188   scast_data->is_ultravox = is_ultravox;
 189   http_free(http_hdr);
 190   stream->streaming_ctrl->data = scast_data;
 191   stream->streaming_ctrl->streaming_read = scast_streaming_read;
 192   stream->streaming_ctrl->streaming_seek = NULL;
 193   stream->streaming_ctrl->prebuffer_size = 64 * 1024; // 64 KBytes
 194   stream->streaming_ctrl->buffering = 1;
 195   stream->streaming_ctrl->status = streaming_playing_e;
 196   return 0;
 197 }
 198
 199 static int nop_streaming_start( stream_t *stream ) {
 200         HTTP_header_t *http_hdr = NULL;
 201         char *next_url=NULL;
 202         URL_t *rd_url=NULL;
 203         int fd,ret;
 204         if( stream==NULL ) return -1;
 205
 206         fd = stream->fd;
 207         if( fd<0 ) {
 208                 fd = http_send_request( stream->streaming_ctrl->url, 0 );
 209                 if( fd<0 ) return -1;
 210                 http_hdr = http_read_response( fd );
 211                 if( http_hdr==NULL ) return -1;
 212
 213                 switch( http_hdr->status_code ) {
 214                         case 200: // OK
 215                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
 216                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
 217                                 if( http_hdr->body_size>0 ) {
 218                                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 219                                                 http_free( http_hdr );
 220                                                 return -1;
 221                                         }
 222                                 }
 223                                 break;
 224                         // Redirect
 225                         case 301: // Permanently
 226                         case 302: // Temporarily
 227                         case 303: // See Other
 228                                 ret=-1;
 229                                 next_url = http_get_field( http_hdr, "Location" );
 230
 231                                 if (next_url != NULL)
 232                                         rd_url=url_new(next_url);
 233
 234                                 if (next_url != NULL && rd_url != NULL) {
 235                                         mp_msg(MSGT_NETWORK,MSGL_STATUS,"Redirected: Using this url instead %s\n",next_url);
 236                                                         stream->streaming_ctrl->url=check4proxies(rd_url);
 237                                         ret=nop_streaming_start(stream); //recursively get streaming started
 238                                 } else {
 239                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Redirection failed\n");
 240                                         closesocket( fd );
 241                                         fd = -1;
 242                                 }
 243                                 return ret;
 244                                 break;
 245                         case 401: //Authorization required
 246                         case 403: //Forbidden
 247                         case 404: //Not found
 248                         case 500: //Server Error
 249                         default:
 250                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned code %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 251                                 closesocket( fd );
 252                                 fd = -1;
 253                                 return -1;
 254                                 break;
 255                 }
 256                 stream->fd = fd;
 257         } else {
 258                 http_hdr = (HTTP_header_t*)stream->streaming_ctrl->data;
 259                 if( http_hdr->body_size>0 ) {
 260                         if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
 261                                 http_free( http_hdr );
 262                                 stream->streaming_ctrl->data = NULL;
 263                                 return -1;
 264                         }
 265                 }
 266         }
 267
 268         if( http_hdr ) {
 269                 http_free( http_hdr );
 270                 stream->streaming_ctrl->data = NULL;
 271         }
 272
 273         stream->streaming_ctrl->streaming_read = nop_streaming_read;
 274         stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
 275         stream->streaming_ctrl->prebuffer_size = 64*1024; // 64 KBytes
 276         stream->streaming_ctrl->buffering = 1;
 277         stream->streaming_ctrl->status = streaming_playing_e;
 278         return 0;
 279 }
 280
 281 HTTP_header_t *
 282 http_new_header(void) {
 283         HTTP_header_t *http_hdr;
 284
 285         http_hdr = malloc(sizeof(HTTP_header_t));
 286         if( http_hdr==NULL ) return NULL;
 287         memset( http_hdr, 0, sizeof(HTTP_header_t) );
 288
 289         return http_hdr;
 290 }
 291
 292 void
 293 http_free( HTTP_header_t *http_hdr ) {
 294         HTTP_field_t *field, *field2free;
 295         if( http_hdr==NULL ) return;
 296         if( http_hdr->protocol!=NULL ) free( http_hdr->protocol );
 297         if( http_hdr->uri!=NULL ) free( http_hdr->uri );
 298         if( http_hdr->reason_phrase!=NULL ) free( http_hdr->reason_phrase );
 299         if( http_hdr->field_search!=NULL ) free( http_hdr->field_search );
 300         if( http_hdr->method!=NULL ) free( http_hdr->method );
 301         if( http_hdr->buffer!=NULL ) free( http_hdr->buffer );
 302         field = http_hdr->first_field;
 303         while( field!=NULL ) {
 304                 field2free = field;
 305                 if (field->field_name)
 306                   free(field->field_name);
 307                 field = field->next;
 308                 free( field2free );
 309         }
 310         free( http_hdr );
 311         http_hdr = NULL;
 312 }
 313
 314 int
 315 http_response_append( HTTP_header_t *http_hdr, char *response, int length ) {
 316         if( http_hdr==NULL || response==NULL || length<0 ) return -1;
 317
 318         if( (unsigned)length > SIZE_MAX - http_hdr->buffer_size - 1) {
 319                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Bad size in memory (re)allocation\n");
 320                 return -1;
 321         }
 322         http_hdr->buffer = (char*)realloc( http_hdr->buffer, http_hdr->buffer_size+length+1 );
 323         if( http_hdr->buffer==NULL ) {
 324                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory (re)allocation failed\n");
 325                 return -1;
 326         }
 327         memcpy( http_hdr->buffer+http_hdr->buffer_size, response, length );
 328         http_hdr->buffer_size += length;
 329         http_hdr->buffer[http_hdr->buffer_size]=0; // close the string!
 330         return http_hdr->buffer_size;
 331 }
 332
 333 int
 334 http_is_header_entire( HTTP_header_t *http_hdr ) {
 335         if( http_hdr==NULL ) return -1;
 336         if( http_hdr->buffer==NULL ) return 0; // empty
 337
 338         if( strstr(http_hdr->buffer, "\r\n\r\n")==NULL &&
 339             strstr(http_hdr->buffer, "\n\n")==NULL ) return 0;
 340         return 1;
 341 }
 342
 343 int
 344 http_response_parse( HTTP_header_t *http_hdr ) {
 345         char *hdr_ptr, *ptr;
 346         char *field=NULL;
 347         int pos_hdr_sep, hdr_sep_len;
 348         size_t len;
 349         if( http_hdr==NULL ) return -1;
 350         if( http_hdr->is_parsed ) return 0;
 351
 352         // Get the protocol
 353         hdr_ptr = strstr( http_hdr->buffer, " " );
 354         if( hdr_ptr==NULL ) {
 355                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. No space separator found.\n");
 356                 return -1;
 357         }
 358         len = hdr_ptr-http_hdr->buffer;
 359         http_hdr->protocol = malloc(len+1);
 360         if( http_hdr->protocol==NULL ) {
 361                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 362                 return -1;
 363         }
 364         strncpy( http_hdr->protocol, http_hdr->buffer, len );
 365         http_hdr->protocol[len]='\0';
 366         if( !strncasecmp( http_hdr->protocol, "HTTP", 4) ) {
 367                 if( sscanf( http_hdr->protocol+5,"1.%d", &(http_hdr->http_minor_version) )!=1 ) {
 368                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get HTTP minor version.\n");
 369                         return -1;
 370                 }
 371         }
 372
 373         // Get the status code
 374         if( sscanf( ++hdr_ptr, "%d", &(http_hdr->status_code) )!=1 ) {
 375                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get status code.\n");
 376                 return -1;
 377         }
 378         hdr_ptr += 4;
 379
 380         // Get the reason phrase
 381         ptr = strstr( hdr_ptr, "\n" );
 382         if( hdr_ptr==NULL ) {
 383                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Malformed answer. Unable to get the reason phrase.\n");
 384                 return -1;
 385         }
 386         len = ptr-hdr_ptr;
 387         http_hdr->reason_phrase = malloc(len+1);
 388         if( http_hdr->reason_phrase==NULL ) {
 389                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 390                 return -1;
 391         }
 392         strncpy( http_hdr->reason_phrase, hdr_ptr, len );
 393         if( http_hdr->reason_phrase[len-1]=='\r' ) {
 394                 len--;
 395         }
 396         http_hdr->reason_phrase[len]='\0';
 397
 398         // Set the position of the header separator: \r\n\r\n
 399         hdr_sep_len = 4;
 400         ptr = strstr( http_hdr->buffer, "\r\n\r\n" );
 401         if( ptr==NULL ) {
 402                 ptr = strstr( http_hdr->buffer, "\n\n" );
 403                 if( ptr==NULL ) {
 404                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Header may be incomplete. No CRLF CRLF found.\n");
 405                         return -1;
 406                 }
 407                 hdr_sep_len = 2;
 408         }
 409         pos_hdr_sep = ptr-http_hdr->buffer;
 410
 411         // Point to the first line after the method line.
 412         hdr_ptr = strstr( http_hdr->buffer, "\n" )+1;
 413         do {
 414                 ptr = hdr_ptr;
 415                 while( *ptr!='\r' && *ptr!='\n' ) ptr++;
 416                 len = ptr-hdr_ptr;
 417                 if( len==0 ) break;
 418                 field = (char*)realloc(field, len+1);
 419                 if( field==NULL ) {
 420                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 421                         return -1;
 422                 }
 423                 strncpy( field, hdr_ptr, len );
 424                 field[len]='\0';
 425                 http_set_field( http_hdr, field );
 426                 hdr_ptr = ptr+((*ptr=='\r')?2:1);
 427         } while( hdr_ptr<(http_hdr->buffer+pos_hdr_sep) );
 428
 429         if( field!=NULL ) free( field );
 430
 431         if( pos_hdr_sep+hdr_sep_len<http_hdr->buffer_size ) {
 432                 // Response has data!
 433                 http_hdr->body = http_hdr->buffer+pos_hdr_sep+hdr_sep_len;
 434                 http_hdr->body_size = http_hdr->buffer_size-(pos_hdr_sep+hdr_sep_len);
 435         }
 436
 437         http_hdr->is_parsed = 1;
 438         return 0;
 439 }
 440
 441 char *
 442 http_build_request( HTTP_header_t *http_hdr ) {
 443         char *ptr, *uri=NULL;
 444         int len;
 445         HTTP_field_t *field;
 446         if( http_hdr==NULL ) return NULL;
 447
 448         if( http_hdr->method==NULL ) http_set_method( http_hdr, "GET");
 449         if( http_hdr->uri==NULL ) http_set_uri( http_hdr, "/");
 450         else {
 451                 uri = malloc(strlen(http_hdr->uri) + 1);
 452                 if( uri==NULL ) {
 453                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 454                         return NULL;
 455                 }
 456                 strcpy(uri,http_hdr->uri);
 457         }
 458
 459         //**** Compute the request length
 460         // Add the Method line
 461         len = strlen(http_hdr->method)+strlen(uri)+12;
 462         // Add the fields
 463         field = http_hdr->first_field;
 464         while( field!=NULL ) {
 465                 len += strlen(field->field_name)+2;
 466                 field = field->next;
 467         }
 468         // Add the CRLF
 469         len += 2;
 470         // Add the body
 471         if( http_hdr->body!=NULL ) {
 472                 len += http_hdr->body_size;
 473         }
 474         // Free the buffer if it was previously used
 475         if( http_hdr->buffer!=NULL ) {
 476                 free( http_hdr->buffer );
 477                 http_hdr->buffer = NULL;
 478         }
 479         http_hdr->buffer = malloc(len+1);
 480         if( http_hdr->buffer==NULL ) {
 481                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Memory allocation failed\n");
 482                 return NULL;
 483         }
 484         http_hdr->buffer_size = len;
 485
 486         //*** Building the request
 487         ptr = http_hdr->buffer;
 488         // Add the method line
 489         ptr += sprintf( ptr, "%s %s HTTP/1.%d\r\n", http_hdr->method, uri, http_hdr->http_minor_version );
 490         field = http_hdr->first_field;
 491         // Add the field
 492         while( field!=NULL ) {
 493                 ptr += sprintf( ptr, "%s\r\n", field->field_name );
 494                 field = field->next;
 495         }
 496         ptr += sprintf( ptr, "\r\n" );
 497         // Add the body
 498         if( http_hdr->body!=NULL ) {
 499                 memcpy( ptr, http_hdr->body, http_hdr->body_size );
 500         }
 501
 502         if( uri ) free( uri );
 503         return http_hdr->buffer;
 504 }
 505
 506 char *
 507 http_get_field( HTTP_header_t *http_hdr, const char *field_name ) {
 508         if( http_hdr==NULL || field_name==NULL ) return NULL;
 509         http_hdr->field_search_pos = http_hdr->first_field;
 510         http_hdr->field_search = (char*)realloc( http_hdr->field_search, strlen(field_name)+1 );
 511         if( http_hdr->field_search==NULL ) {
 512                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 513                 return NULL;
 514         }
 515         strcpy( http_hdr->field_search, field_name );
 516         return http_get_next_field( http_hdr );
 517 }
 518
 519 char *
 520 http_get_next_field( HTTP_header_t *http_hdr ) {
 521         char *ptr;
 522         HTTP_field_t *field;
 523         if( http_hdr==NULL ) return NULL;
 524
 525         field = http_hdr->field_search_pos;
 526         while( field!=NULL ) {
 527                 ptr = strstr( field->field_name, ":" );
 528                 if( ptr==NULL ) return NULL;
 529                 if( !strncasecmp( field->field_name, http_hdr->field_search, ptr-(field->field_name) ) ) {
 530                         ptr++;  // Skip the column
 531                         while( ptr[0]==' ' ) ptr++; // Skip the spaces if there is some
 532                         http_hdr->field_search_pos = field->next;
 533                         return ptr;     // return the value without the field name
 534                 }
 535                 field = field->next;
 536         }
 537         return NULL;
 538 }
 539
 540 void
 541 http_set_field( HTTP_header_t *http_hdr, const char *field_name ) {
 542         HTTP_field_t *new_field;
 543         if( http_hdr==NULL || field_name==NULL ) return;
 544
 545         new_field = malloc(sizeof(HTTP_field_t));
 546         if( new_field==NULL ) {
 547                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 548                 return;
 549         }
 550         new_field->next = NULL;
 551         new_field->field_name = malloc(strlen(field_name)+1);
 552         if( new_field->field_name==NULL ) {
 553                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 554                 return;
 555         }
 556         strcpy( new_field->field_name, field_name );
 557
 558         if( http_hdr->last_field==NULL ) {
 559                 http_hdr->first_field = new_field;
 560         } else {
 561                 http_hdr->last_field->next = new_field;
 562         }
 563         http_hdr->last_field = new_field;
 564         http_hdr->field_nb++;
 565 }
 566
 567 void
 568 http_set_method( HTTP_header_t *http_hdr, const char *method ) {
 569         if( http_hdr==NULL || method==NULL ) return;
 570
 571         http_hdr->method = malloc(strlen(method)+1);
 572         if( http_hdr->method==NULL ) {
 573                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 574                 return;
 575         }
 576         strcpy( http_hdr->method, method );
 577 }
 578
 579 void
 580 http_set_uri( HTTP_header_t *http_hdr, const char *uri ) {
 581         if( http_hdr==NULL || uri==NULL ) return;
 582
 583         http_hdr->uri = malloc(strlen(uri)+1);
 584         if( http_hdr->uri==NULL ) {
 585                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 586                 return;
 587         }
 588         strcpy( http_hdr->uri, uri );
 589 }
 590
 591 int
 592 http_add_basic_authentication( HTTP_header_t *http_hdr, const char *username, const char *password ) {
 593         char *auth = NULL, *usr_pass = NULL, *b64_usr_pass = NULL;
 594         int encoded_len, pass_len=0, out_len;
 595         int res = -1;
 596         if( http_hdr==NULL || username==NULL ) return -1;
 597
 598         if( password!=NULL ) {
 599                 pass_len = strlen(password);
 600         }
 601
 602         usr_pass = malloc(strlen(username)+pass_len+2);
 603         if( usr_pass==NULL ) {
 604                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 605                 goto out;
 606         }
 607
 608         sprintf( usr_pass, "%s:%s", username, (password==NULL)?"":password );
 609
 610         // Base 64 encode with at least 33% more data than the original size
 611         encoded_len = strlen(usr_pass)*2;
 612         b64_usr_pass = malloc(encoded_len);
 613         if( b64_usr_pass==NULL ) {
 614                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 615                 goto out;
 616         }
 617
 618         out_len = base64_encode( usr_pass, strlen(usr_pass), b64_usr_pass, encoded_len);
 619         if( out_len<0 ) {
 620                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Base64 out overflow\n");
 621                 goto out;
 622         }
 623
 624         b64_usr_pass[out_len]='\0';
 625
 626         auth = malloc(encoded_len+22);
 627         if( auth==NULL ) {
 628                 mp_msg(MSGT_NETWORK,MSGL_FATAL,"Memory allocation failed\n");
 629                 goto out;
 630         }
 631
 632         sprintf( auth, "Authorization: Basic %s", b64_usr_pass);
 633         http_set_field( http_hdr, auth );
 634         res = 0;
 635
 636 out:
 637         free( usr_pass );
 638         free( b64_usr_pass );
 639         free( auth );
 640
 641         return res;
 642 }
 643
 644 void
 645 http_debug_hdr( HTTP_header_t *http_hdr ) {
 646         HTTP_field_t *field;
 647         int i = 0;
 648         if( http_hdr==NULL ) return;
 649
 650         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- START ---\n");
 651         mp_msg(MSGT_NETWORK,MSGL_V,"protocol:           [%s]\n", http_hdr->protocol );
 652         mp_msg(MSGT_NETWORK,MSGL_V,"http minor version: [%d]\n", http_hdr->http_minor_version );
 653         mp_msg(MSGT_NETWORK,MSGL_V,"uri:                [%s]\n", http_hdr->uri );
 654         mp_msg(MSGT_NETWORK,MSGL_V,"method:             [%s]\n", http_hdr->method );
 655         mp_msg(MSGT_NETWORK,MSGL_V,"status code:        [%d]\n", http_hdr->status_code );
 656         mp_msg(MSGT_NETWORK,MSGL_V,"reason phrase:      [%s]\n", http_hdr->reason_phrase );
 657         mp_msg(MSGT_NETWORK,MSGL_V,"body size:          [%d]\n", http_hdr->body_size );
 658
 659         mp_msg(MSGT_NETWORK,MSGL_V,"Fields:\n");
 660         field = http_hdr->first_field;
 661         while( field!=NULL ) {
 662                 mp_msg(MSGT_NETWORK,MSGL_V," %d - %s\n", i++, field->field_name );
 663                 field = field->next;
 664         }
 665         mp_msg(MSGT_NETWORK,MSGL_V,"--- HTTP DEBUG HEADER --- END ---\n");
 666 }
 667
 668 int
 669 base64_encode(const void *enc, int encLen, char *out, int outMax) {
 670         static const char       b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 671
 672         unsigned char           *encBuf;
 673         int                     outLen;
 674         unsigned int            bits;
 675         unsigned int            shift;
 676
 677         encBuf = (unsigned char*)enc;
 678         outLen = 0;
 679         bits = 0;
 680         shift = 0;
 681         outMax &= ~3;
 682
 683         while(1) {
 684                 if( encLen>0 ) {
 685                         // Shift in byte
 686                         bits <<= 8;
 687                         bits |= *encBuf;
 688                         shift += 8;
 689                         // Next byte
 690                         encBuf++;
 691                         encLen--;
 692                 } else if( shift>0 ) {
 693                         // Pad last bits to 6 bits - will end next loop
 694                         bits <<= 6 - shift;
 695                         shift = 6;
 696                 } else {
 697                         // As per RFC 2045, section 6.8,
 698                         // pad output as necessary: 0 to 2 '=' chars.
 699                         while( outLen & 3 ){
 700                                 *out++ = '=';
 701                                 outLen++;
 702                         }
 703
 704                         return outLen;
 705                 }
 706
 707                 // Encode 6 bit segments
 708                 while( shift>=6 ) {
 709                         if (outLen >= outMax)
 710                                 return -1;
 711                         shift -= 6;
 712                         *out = b64[ (bits >> shift) & 0x3F ];
 713                         out++;
 714                         outLen++;
 715                 }
 716         }
 717 }
 718
 719 static void print_icy_metadata(HTTP_header_t *http_hdr) {
 720         const char *field_data;
 721         // note: I skip icy-notice1 and 2, as they contain html <BR>
 722         // and are IMHO useless info ::atmos
 723         if( (field_data = http_get_field(http_hdr, "icy-name")) != NULL )
 724                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Name   : %s\n", field_data);
 725         if( (field_data = http_get_field(http_hdr, "icy-genre")) != NULL )
 726                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Genre  : %s\n", field_data);
 727         if( (field_data = http_get_field(http_hdr, "icy-url")) != NULL )
 728                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Website: %s\n", field_data);
 729         // XXX: does this really mean public server? ::atmos
 730         if( (field_data = http_get_field(http_hdr, "icy-pub")) != NULL )
 731                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Public : %s\n", atoi(field_data)?"yes":"no");
 732         if( (field_data = http_get_field(http_hdr, "icy-br")) != NULL )
 733                 mp_msg(MSGT_NETWORK,MSGL_INFO,"Bitrate: %skbit/s\n", field_data);
 734 }
 735
 736 //! If this function succeeds you must closesocket stream->fd
 737 static int http_streaming_start(stream_t *stream, int* file_format) {
 738         HTTP_header_t *http_hdr = NULL;
 739         unsigned int i;
 740         int fd = stream->fd;
 741         int res = STREAM_UNSUPPORTED;
 742         int redirect = 0;
 743         int auth_retry=0;
 744         int seekable=0;
 745         char *content_type;
 746         char *next_url;
 747         URL_t *url = stream->streaming_ctrl->url;
 748
 749         do
 750         {
 751                 redirect = 0;
 752                 if (fd > 0) closesocket(fd);
 753                 fd = http_send_request( url, 0 );
 754                 if( fd<0 ) {
 755                         goto err_out;
 756                 }
 757
 758                 http_free(http_hdr);
 759                 http_hdr = http_read_response( fd );
 760                 if( http_hdr==NULL ) {
 761                         goto err_out;
 762                 }
 763
 764                 if( mp_msg_test(MSGT_NETWORK,MSGL_V) ) {
 765                         http_debug_hdr( http_hdr );
 766                 }
 767
 768                 // Check if we can make partial content requests and thus seek in http-streams
 769                 if( http_hdr!=NULL && http_hdr->status_code==200 ) {
 770                     char *accept_ranges;
 771                     if( (accept_ranges = http_get_field(http_hdr,"Accept-Ranges")) != NULL )
 772                         seekable = strncmp(accept_ranges,"bytes",5)==0;
 773                 }
 774
 775                 print_icy_metadata(http_hdr);
 776
 777                 // Check if the response is an ICY status_code reason_phrase
 778                 if( !strcasecmp(http_hdr->protocol, "ICY") ||
 779                      http_get_field(http_hdr, "Icy-MetaInt") ) {
 780                         switch( http_hdr->status_code ) {
 781                                 case 200: { // OK
 782                                         char *field_data;
 783                                         // If content-type == video/nsv we most likely have a winamp video stream
 784                                         // otherwise it should be mp3. if there are more types consider adding mime type
 785                                         // handling like later
 786                                         if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "video/nsv") || !strcmp(field_data, "misc/ultravox")))
 787                                                 *file_format = DEMUXER_TYPE_NSV;
 788                                         else if ( (field_data = http_get_field(http_hdr, "content-type")) != NULL && (!strcmp(field_data, "audio/aacp") || !strcmp(field_data, "audio/aac")))
 789                                                 *file_format = DEMUXER_TYPE_AAC;
 790                                         else
 791                                                 *file_format = DEMUXER_TYPE_AUDIO;
 792                                         res = STREAM_ERROR;
 793                                         goto out;
 794                                 }
 795                                 case 400: // Server Full
 796                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server is full, skipping!\n");
 797                                         goto err_out;
 798                                 case 401: // Service Unavailable
 799                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return service unavailable, skipping!\n");
 800                                         goto err_out;
 801                                 case 403: // Service Forbidden
 802                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server return 'Service Forbidden'\n");
 803                                         goto err_out;
 804                                 case 404: // Resource Not Found
 805                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: ICY-Server couldn't find requested stream, skipping!\n");
 806                                         goto err_out;
 807                                 default:
 808                                         mp_msg(MSGT_NETWORK,MSGL_ERR,"Error: unhandled ICY-Errorcode, contact MPlayer developers!\n");
 809                                         goto err_out;
 810                         }
 811                 }
 812
 813                 // Assume standard http if not ICY
 814                 switch( http_hdr->status_code ) {
 815                         case 200: // OK
 816                                 // Look if we can use the Content-Type
 817                                 content_type = http_get_field( http_hdr, "Content-Type" );
 818                                 if( content_type!=NULL ) {
 819                                         char *content_length = NULL;
 820                                         mp_msg(MSGT_NETWORK,MSGL_V,"Content-Type: [%s]\n", content_type );
 821                                         if( (content_length = http_get_field(http_hdr, "Content-Length")) != NULL) {
 822                                                 mp_msg(MSGT_NETWORK,MSGL_V,"Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length"));
 823                                                 stream->end_pos = atoi(content_length);
 824                                         }
 825                                         // Check in the mime type table for a demuxer type
 826                                         i = 0;
 827                                         while(mime_type_table[i].mime_type != NULL) {
 828                                                 if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) {
 829                                                         *file_format = mime_type_table[i].demuxer_type;
 830                                                         res = seekable;
 831                                                         goto out;
 832                                                 }
 833                                                 i++;
 834                                         }
 835                                 }
 836                                 // Not found in the mime type table, don't fail,
 837                                 // we should try raw HTTP
 838                                 res = seekable;
 839                                 goto out;
 840                         // Redirect
 841                         case 301: // Permanently
 842                         case 302: // Temporarily
 843                         case 303: // See Other
 844                                 // TODO: RFC 2616, recommand to detect infinite redirection loops
 845                                 next_url = http_get_field( http_hdr, "Location" );
 846                                 if( next_url!=NULL ) {
 847                                         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 848                                         stream->streaming_ctrl->url = url_redirect( &url, next_url );
 849                                         if (!strcasecmp(url->protocol, "mms")) {
 850                                                 res = STREAM_REDIRECTED;
 851                                                 goto err_out;
 852                                         }
 853                                         if (strcasecmp(url->protocol, "http")) {
 854                                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Unsupported http %d redirect to %s protocol\n", http_hdr->status_code, url->protocol);
 855                                                 goto err_out;
 856                                         }
 857                                         if (is_ultravox)  {
 858                                                 free(url->protocol);
 859                                                 url->protocol = strdup("unsv");
 860                                         }
 861                                         redirect = 1;
 862                                 }
 863                                 break;
 864                         case 401: // Authentication required
 865                                 if( http_authenticate(http_hdr, url, &auth_retry)<0 )
 866                                         goto err_out;
 867                                 redirect = 1;
 868                                 break;
 869                         default:
 870                                 mp_msg(MSGT_NETWORK,MSGL_ERR,"Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
 871                                 goto err_out;
 872                 }
 873         } while( redirect );
 874
 875 err_out:
 876         if (fd > 0) closesocket( fd );
 877         fd = -1;
 878         http_free( http_hdr );
 879         http_hdr = NULL;
 880 out:
 881         stream->streaming_ctrl->data = (void*)http_hdr;
 882         stream->fd = fd;
 883         return res;
 884 }
 885
 886 static int fixup_open(stream_t *stream,int seekable) {
 887         HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
 888         int is_icy = http_hdr && http_get_field(http_hdr, "Icy-MetaInt");
 889         int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
 890
 891         stream->type = STREAMTYPE_STREAM;
 892         if(!is_icy && !is_ultravox && seekable)
 893         {
 894                 stream->flags |= STREAM_SEEK;
 895                 stream->seek = http_seek;
 896         }
 897         stream->streaming_ctrl->bandwidth = network_bandwidth;
 898         if ((!is_icy && !is_ultravox) || scast_streaming_start(stream))
 899         if(nop_streaming_start( stream )) {
 900                 mp_msg(MSGT_NETWORK,MSGL_ERR,"nop_streaming_start failed\n");
 901                 if (stream->fd >= 0)
 902                         closesocket(stream->fd);
 903                 stream->fd = -1;
 904                 streaming_ctrl_free(stream->streaming_ctrl);
 905                 stream->streaming_ctrl = NULL;
 906                 return STREAM_UNSUPPORTED;
 907         }
 908
 909         fixup_network_stream_cache(stream);
 910         return STREAM_OK;
 911 }
 912
 913 static int open_s1(stream_t *stream,int mode, void* opts, int* file_format) {
 914         int seekable=0;
 915         URL_t *url;
 916
 917         stream->streaming_ctrl = streaming_ctrl_new();
 918         if( stream->streaming_ctrl==NULL ) {
 919                 return STREAM_ERROR;
 920         }
 921         stream->streaming_ctrl->bandwidth = network_bandwidth;
 922         url = url_new(stream->url);
 923         stream->streaming_ctrl->url = check4proxies(url);
 924         url_free(url);
 925
 926         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(1), URL: %s\n", stream->url);
 927         seekable = http_streaming_start(stream, file_format);
 928         if((seekable < 0) || (*file_format == DEMUXER_TYPE_ASF)) {
 929                 if (stream->fd >= 0)
 930                         closesocket(stream->fd);
 931                 stream->fd = -1;
 932                 if (seekable == STREAM_REDIRECTED)
 933                         return seekable;
 934                 streaming_ctrl_free(stream->streaming_ctrl);
 935                 stream->streaming_ctrl = NULL;
 936                 return STREAM_UNSUPPORTED;
 937         }
 938
 939         return fixup_open(stream, seekable);
 940 }
 941
 942 static int open_s2(stream_t *stream,int mode, void* opts, int* file_format) {
 943         int seekable=0;
 944         URL_t *url;
 945
 946         stream->streaming_ctrl = streaming_ctrl_new();
 947         if( stream->streaming_ctrl==NULL ) {
 948                 return STREAM_ERROR;
 949         }
 950         stream->streaming_ctrl->bandwidth = network_bandwidth;
 951         url = url_new(stream->url);
 952         stream->streaming_ctrl->url = check4proxies(url);
 953         url_free(url);
 954
 955         mp_msg(MSGT_OPEN, MSGL_V, "STREAM_HTTP(2), URL: %s\n", stream->url);
 956         seekable = http_streaming_start(stream, file_format);
 957         if(seekable < 0) {
 958                 if (stream->fd >= 0)
 959                         closesocket(stream->fd);
 960                 stream->fd = -1;
 961                 streaming_ctrl_free(stream->streaming_ctrl);
 962                 stream->streaming_ctrl = NULL;
 963                 return STREAM_UNSUPPORTED;
 964         }
 965
 966         return fixup_open(stream, seekable);
 967 }
 968
 969
 970 const stream_info_t stream_info_http1 = {
 971   "http streaming",
 972   "null",
 973   "Bertrand, Albeau, Reimar Doeffinger, Arpi?",
 974   "plain http",
 975   open_s1,
 976   {"http", "http_proxy", "unsv", "icyx", NULL},
 977   NULL,
 978   0 // Urls are an option string
 979 };
 980
 981 const stream_info_t stream_info_http2 = {
 982   "http streaming",
 983   "null",
 984   "Bertrand, Albeu, Arpi? who?",
 985   "plain http, also used as fallback for many other protocols",
 986   open_s2,
 987   {"http", "http_proxy", "pnm", "mms", "mmsu", "mmst", "rtsp", NULL},   //all the others as fallback
 988   NULL,
 989   0 // Urls are an option string
 990 };