/* 
 * Copyright (C) 2000-2002 the xine project
 * 
 * This file is part of xine, a free video player.
 * 
 * xine is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * xine is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
 *
 * input plugin for http network streams
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <errno.h>
#include <sys/time.h>

#include "xine_internal.h"
#include "xineutils.h"
#include "input_plugin.h"
#include "net_buf_ctrl.h"

/*
#define LOG
*/

#define PREVIEW_SIZE            2200
#define BUFSIZE                 1024

#define DEFAULT_HTTP_PORT         80

typedef struct {
  input_plugin_t   input_plugin;

  xine_stream_t   *stream;
  
  int              fh;
  char            *mrl;

  nbc_t           *nbc; 

  off_t            curpos;
  off_t            contentlength;
    
  char             buf[BUFSIZE];
  char             mrlbuf[BUFSIZE];
  char             mrlbuf2[BUFSIZE]; /* icecast */
  char             proxybuf[BUFSIZE];

  char             auth[BUFSIZE];
  char             proxyauth[BUFSIZE];
  
  char            *user;
  char            *password;
  char            *host;
  int              port;
  char            *filename;
  
  char            *proxyuser;
  char            *proxypassword;
  char            *proxyhost;
  int              proxyport;

  char             preview[PREVIEW_SIZE];
  off_t            preview_size;
  off_t            preview_pos;
  
  /* ShoutCast */
  int              shoutcast_mode;
  int              shoutcast_metaint;
  off_t            shoutcast_pos;
  char            *shoutcast_songtitle;

  /* scratch buffer for forward seeking */

  char             seek_buf[BUFSIZE];

  
} http_input_plugin_t;

typedef struct {

  input_class_t     input_class;

  xine_t           *xine;
  config_values_t  *config;
  
} http_input_class_t;

static int http_plugin_host_connect_attempt (struct in_addr ia, int port, 
					     xine_t *xine) {

  int                s;
  struct sockaddr_in sin;
	
  s=socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);

  if (s==-1) {
    xine_log (xine, XINE_LOG_MSG, _("input_http: failed to open socket\n"));
    return -1;
  }

  sin.sin_family = AF_INET;	
  sin.sin_addr   = ia;
  sin.sin_port   = htons(port);
	
  if (connect(s, (struct sockaddr *)&sin, sizeof(sin))==-1 && errno != EINPROGRESS) {
    xine_log (xine, XINE_LOG_MSG, _("input_http: cannot connect to host\n"));
    close(s);
    return -1;
  }	
	
  return s;
}

static int http_plugin_host_connect (const char *host, int port, xine_t *xine) {
  struct hostent *h;
  int i;
  int s;
	
  h=gethostbyname(host);
  if (h==NULL) {
    xine_log (xine, XINE_LOG_MSG, _("input_http: unable to resolve >%s<\n"), host);
    return -1;
  }
	
  for(i=0; h->h_addr_list[i]; i++) {
    struct in_addr ia;
    memcpy(&ia, h->h_addr_list[i], 4);
    s=http_plugin_host_connect_attempt(ia, port, xine);
    if(s != -1)
      return s;
  }

  xine_log (xine, XINE_LOG_MSG, _("http: unable to connect to >%s<\n"), host);
  return -1;
}

static int http_plugin_parse_url (char *urlbuf, char **user, char **password,
    char** host, int *port, char **filename) {
  char   *start = NULL;
  char   *authcolon = NULL;
  char	 *at = NULL;
  char	 *portcolon = NULL;
  char   *slash = NULL;
  
  if (user != NULL)
    *user = NULL;
  
  if (password != NULL)
    *password = NULL;
  
  if (host != NULL)
    *host = NULL;
  
  if (filename != NULL)
    *filename = NULL;
  
  if (port != NULL)
    *port = 0;
  
  start = strstr(urlbuf, "://");
  if (start != NULL)
    start += 3;
  else
    start = urlbuf;
  
  at = strchr(start, '@');
  slash = strchr(start, '/');
  
  if (at != NULL && slash != NULL && at > slash)
    at = NULL;
  
  if (at != NULL)
  {
    authcolon = strchr(start, ':');
    if(authcolon != NULL && authcolon > at)
      authcolon = NULL;
    
    portcolon = strchr(at, ':');
  } else
    portcolon = strchr(start, ':');
  
  if (portcolon != NULL && slash != NULL && portcolon > slash)
    portcolon = NULL;
  
  if (at != NULL)
  {
    *at = '\0';
    
    if (user != NULL)
      *user = start;
    
    if (authcolon != NULL)
    {
      *authcolon = '\0';
      
      if (password != NULL)
      	*password = authcolon + 1;
    }
    
    if (host != NULL)
      *host = at + 1;
  } else
    if (host != NULL)
      *host = start;
  
  if (slash != 0)
  {
    *slash = '\0';
    
    if (filename != NULL)
      *filename = slash + 1;
  } else
    *filename = urlbuf + strlen(urlbuf);
  
  if (portcolon != NULL)
  {
    *portcolon = '\0';
    
    if (port != NULL)
      *port = atoi(portcolon + 1);
  }
  
  return 0;
}

static int http_plugin_basicauth (const char *user, const char *password,
				  char* dest, int len) {
  static char *enctable="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
  char        *tmp;
  char        *sptr;
  char        *dptr;
  int          totlen;
  int          enclen;
  int          count;
  
  totlen = strlen (user) + 1;
  if(password != NULL)
    totlen += strlen (password);
  
  enclen = ((totlen + 2) / 3 ) * 4 + 1;
  
  if (len < enclen)
    return -1;
  
  tmp = malloc (sizeof(char) * (totlen + 1));
  strcpy (tmp, user);
  strcat (tmp, ":");
  if (password != NULL)
    strcat (tmp, password);  
  
  count = strlen(tmp);
  sptr = tmp;
  dptr = dest;
  while (count >= 3) {
    dptr[0] = enctable[(sptr[0] & 0xFC) >> 2];
    dptr[1] = enctable[((sptr[0] & 0x3) << 4) | ((sptr[1] & 0xF0) >> 4)];
    dptr[2] = enctable[((sptr[1] & 0x0F) << 2) | ((sptr[2] & 0xC0) >> 6)];
    dptr[3] = enctable[sptr[2] & 0x3F];
    count -= 3;
    sptr += 3;
    dptr += 4;
  }
  
  if (count > 0) {
    dptr[0] = enctable[(sptr[0] & 0xFC) >> 2];
    dptr[1] = enctable[(sptr[0] & 0x3) << 4];
    dptr[2] = '=';
    
    if (count > 1) {
      dptr[1] = enctable[((sptr[0] & 0x3) << 4) | ((sptr[1] & 0xF0) >> 4)];
      dptr[2] = enctable[(sptr[1] & 0x0F) << 2];
    }
    
    dptr[3] = '=';
    dptr += 4;
  }
  
  dptr[0] = '\0';
  
  free(tmp);
  return 0;
}

static void http_plugin_read_metainf (input_plugin_t *this_gen) {
 
  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;
  char metadata_buf[255 * 16];
  unsigned char len = 0;
  char *title_end;
  char *songtitle, *radio;
  xine_event_t uevent;
  xine_ui_data_t data;
    
  /* avoid recursion */
  this->shoutcast_mode = 0;
  
  /* get the length of the metadata */
  this_gen->read(this_gen, &len, 1);

#ifdef LOG
  printf ("input_http: http_plugin_read_metainf: len=%d\n", len);
#endif
  
  if (len > 0) {
    this_gen->read(this_gen, metadata_buf, len * 16);
  
    metadata_buf[len * 16] = '\0';
#ifdef LOG
  printf ("input_http: http_plugin_read_metainf: %s\n", metadata_buf);
#endif
    /* Extract the title of the current song */
    if ((songtitle = strstr(metadata_buf, "StreamTitle='"))) {
      songtitle += 13; /* skip "StreamTitle='" */
      if ((title_end = strchr(songtitle, '\''))) {
        *title_end = '\0';
        
        if ((!this->shoutcast_songtitle ||
             (strcmp(songtitle, this->shoutcast_songtitle))) &&
            (strlen(songtitle) > 0)) {
#ifdef LOG
          printf ("input_http: http_plugin_read_metainf: songtitle: %s\n", songtitle);
#endif
          
          if (this->shoutcast_songtitle)
            free(this->shoutcast_songtitle);
          this->shoutcast_songtitle = strdup(songtitle);

          if (this->stream->meta_info [XINE_META_INFO_TITLE])
            free(this->stream->meta_info [XINE_META_INFO_TITLE]);
          this->stream->meta_info [XINE_META_INFO_TITLE] = strdup (songtitle);
  
          /* prepares the event */
          radio = this->stream->meta_info [XINE_META_INFO_ALBUM];
          
          if (radio) {
            strcpy(data.str, radio); /* WARNING: the data.str is char[256] */
            strcat(data.str, " - ");
            data.str_len = strlen(radio) + 3 + strlen(songtitle) + 1;
          } else {
            data.str[0] = 0;
            data.str_len = strlen(songtitle) + 1;
          }  
          strcat(data.str, songtitle);
          
          /* sends the event */
          uevent.type = XINE_EVENT_UI_SET_TITLE;
          uevent.stream = this->stream;
          uevent.data = &data;
          uevent.data_length = sizeof(data);
          xine_event_send(this->stream, &uevent);
        }
      }    
    }
  }  
  
  this->shoutcast_mode = 1;
  this->shoutcast_pos  = 0; 
}

static off_t http_plugin_read (input_plugin_t *this_gen, 
			       char *buf, off_t nlen) {
  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;
  off_t n, num_bytes;

  nbc_check_buffers (this->nbc);

  num_bytes = 0;

  while (num_bytes < nlen) {

    if (this->shoutcast_mode && (this->shoutcast_pos == this->shoutcast_metaint)) {
      http_plugin_read_metainf(this_gen);
    }
    
    if (this->preview_pos < this->preview_size) {

      n = this->preview_size - this->preview_pos;
      if (n > (nlen - num_bytes)) 
	n = nlen - num_bytes;

#ifdef LOG
      printf ("input_http: %lld bytes from preview (which has %lld bytes)\n",
	      n, this->preview_size);
#endif

      if (this->shoutcast_mode) {
        if ((this->shoutcast_pos + n) < this->shoutcast_metaint) {
          memcpy (&buf[num_bytes], &this->preview[this->preview_pos], n);
          this->shoutcast_pos += n;
        } else {
          n = this->shoutcast_metaint - this->shoutcast_pos;
          memcpy (&buf[num_bytes], &this->preview[this->preview_pos], n);
          this->shoutcast_pos += n;
        }
      } else {
        memcpy (&buf[num_bytes], &this->preview[this->preview_pos], n);
      }
      this->preview_pos += n;

    } else {
      n = nlen - num_bytes;
      if (this->shoutcast_mode) {
        if ((this->shoutcast_pos + n) < this->shoutcast_metaint) {
          n = read (this->fh, &buf[num_bytes], n);
          this->shoutcast_pos += n;
        } else {
          n = this->shoutcast_metaint - this->shoutcast_pos;
          n = read (this->fh, &buf[num_bytes], n);
          this->shoutcast_pos += n;
        }
      } else {
        n = read (this->fh, &buf[num_bytes], n);
      }
    }
      
    if (n <= 0) {
      
      switch (errno) {
      case EAGAIN:
	xine_log (this->stream->xine, XINE_LOG_MSG, _("input_http: EAGAIN\n"));
	continue;
      default:
	xine_log (this->stream->xine, XINE_LOG_MSG, _("input_http: read error %d\n"), errno);
	return 0;
      }
    }
    
    num_bytes += n;
    this->curpos += n;
  }
  return num_bytes;
}

static int read_shoutcast_header(http_input_plugin_t *this) {
  int done, len, linenum;

  done = 0; len = 0; linenum = 0;
  while (!done) {

    /*
    printf ("input_http: read...\n");
    */

    if (http_plugin_read ((input_plugin_t*)this, &this->buf[len], 1) == 0) {
      return 1;
    }

    if (this->buf[len] == '\012') {

      this->buf[len] = '\0';
      len--;
  
      if (len >= 0 && this->buf[len] == '\015') {
        this->buf[len] = '\0';
        len--;
      }

      linenum++;
      
#ifdef LOG
      printf ("input_http: shoutcast answer: >%s<\n", this->buf);
#endif

      if (!strncasecmp(this->buf, "icy-name:", 9)) {
        this->stream->meta_info [XINE_META_INFO_ALBUM]
          = strdup (this->buf + 9 + (*(this->buf + 9) == ' '));
        this->stream->meta_info [XINE_META_INFO_TITLE]
          = strdup (this->buf + 9 + (*(this->buf + 9) == ' '));
      }

      if (!strncasecmp(this->buf, "icy-genre:", 10)) {
        this->stream->meta_info [XINE_META_INFO_GENRE]
          = strdup (this->buf + 10 + (*(this->buf + 10) == ' '));
      }

      /* icy-notice1 is always the same */
      if (!strncasecmp(this->buf, "icy-notice2:", 12)) {
        this->stream->meta_info [XINE_META_INFO_COMMENT]
          = strdup (this->buf + 12 + (*(this->buf + 12) == ' '));
      }

      /* metadata interval (in byte) */
      if (sscanf(this->buf, "icy-metaint:%d", &this->shoutcast_metaint) == 1) {
#ifdef LOG
        printf("input_http: shoutcast_metaint: %d\n", this->shoutcast_metaint);
#endif
      }
      
      if (len == -1)
        done = 1;
      else
        len = 0;
    } else
      len ++;
  }
#ifdef LOG
  printf ("input_http: end of the shoutcast header\n");
#endif

  return 0;
}

/*
 * helper function to release buffer
 * in case demux thread is cancelled
 */
static void pool_release_buffer (void *arg) {
  buf_element_t *buf = (buf_element_t *) arg;
  if( buf != NULL )
    buf->free_buffer(buf);
}

static buf_element_t *http_plugin_read_block (input_plugin_t *this_gen, fifo_buffer_t *fifo, off_t todo) {

  off_t                 total_bytes;
  http_input_plugin_t  *this = (http_input_plugin_t *) this_gen;
  buf_element_t        *buf = fifo->buffer_pool_alloc (fifo);

  nbc_check_buffers (this->nbc);

  pthread_setcancelstate(PTHREAD_CANCEL_ENABLE,NULL);
  pthread_cleanup_push( pool_release_buffer, buf );

  buf->content = buf->mem;
  buf->type = BUF_DEMUX_BLOCK;

  total_bytes = http_plugin_read (this_gen, buf->content, todo);

  if (total_bytes != todo) {
    buf->free_buffer (buf);
    buf = NULL;
  }

  if (buf != NULL)
    buf->size = total_bytes;

  pthread_setcancelstate(PTHREAD_CANCEL_DISABLE,NULL);
  pthread_cleanup_pop(0);

  return buf;
}

static off_t http_plugin_get_length (input_plugin_t *this_gen) {
  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;

  return this->contentlength;
}

static uint32_t http_plugin_get_capabilities (input_plugin_t *this_gen) {

  return INPUT_CAP_PREVIEW;
}

static uint32_t http_plugin_get_blocksize (input_plugin_t *this_gen) {

  return 0;
}

static off_t http_plugin_get_current_pos (input_plugin_t *this_gen){
  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;

  return this->curpos;
}

static off_t http_plugin_seek(input_plugin_t *this_gen, off_t offset, int origin) {
  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;

  /* only realtive forward-seeking is implemented */

  if ((origin == SEEK_CUR) && (offset >= 0)) {

    for (;((int)offset) - BUFSIZE > 0; offset -= BUFSIZE) {
      http_plugin_read (this_gen, this->seek_buf, BUFSIZE);
    }

    http_plugin_read (this_gen, this->seek_buf, offset);
  }

  return this->curpos;
}

static char* http_plugin_get_mrl (input_plugin_t *this_gen) {
  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;

  return this->mrlbuf2;
}

static int http_plugin_get_optional_data (input_plugin_t *this_gen, 
					  void *data, int data_type) {

  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;

  switch (data_type) {
  case INPUT_OPTIONAL_DATA_PREVIEW:

    memcpy (data, this->preview, this->preview_size);
    return this->preview_size;

    break;
  }

  return INPUT_OPTIONAL_UNSUPPORTED;
}

static void http_plugin_dispose (input_plugin_t *this_gen ) {
  http_input_plugin_t *this = (http_input_plugin_t *) this_gen;

  close(this->fh);
  this->fh = -1;

  if (this->nbc) {
    nbc_close (this->nbc);
    this->nbc = NULL;
  }

  free (this_gen);
}

static input_plugin_t *open_plugin (input_class_t *cls_gen, xine_stream_t *stream, 
				    const char *mrl) {

  /* http_input_class_t  *cls = (http_input_class_t *) cls_gen;*/
  http_input_plugin_t *this;
  char                *proxy;
  int                  done,len,linenum;
  int                  shoutcast = 0;
  
  this = (http_input_plugin_t *) xine_xmalloc(sizeof(http_input_plugin_t));
  this->shoutcast_pos = 0;

  strncpy (this->mrlbuf, mrl, BUFSIZE);
  strncpy (this->mrlbuf2, mrl, BUFSIZE);
  this->mrl = this->mrlbuf2;

  if (strncasecmp (this->mrlbuf, "http://", 7)) {
    free (this);
    return NULL;
  }

  this->stream = stream;

  this->proxybuf[0] = '\0';
  proxy = getenv("http_proxy");
  
  if (proxy != NULL)  {
    strncpy(this->proxybuf, proxy, BUFSIZE);
    
    if (http_plugin_parse_url (this->proxybuf, &this->proxyuser,
			       &this->proxypassword, &this->proxyhost, 
			       &this->proxyport, NULL)) {
      free (this);
      return NULL;
    }
    
    if (this->proxyport == 0)
      this->proxyport = DEFAULT_HTTP_PORT;
    
    if (this->proxyuser != NULL)
      if (http_plugin_basicauth (this->proxyuser, this->proxypassword,
				 this->proxyauth, BUFSIZE)) {
	free (this);
	return NULL;
      }
  }
  
  if (http_plugin_parse_url (this->mrlbuf, &this->user, &this->password,
			     &this->host, &this->port, &this->filename)) {
    free (this);
    return NULL;
  }

  if(this->port == 0)
    this->port = DEFAULT_HTTP_PORT;

  if (this->user != NULL)
    if (http_plugin_basicauth (this->user, this->password, this->auth, BUFSIZE)) {
      free (this);
      return NULL;
    }

  {
    char buf[256];

    sprintf (buf, _("input_http: opening >/%s< on host >%s<"), 
	     this->filename, this->host);

    if (proxy != NULL)
      sprintf(buf, _("%s via proxy >%s<"), buf, this->proxyhost);
    
    sprintf(buf, "%s\n", buf);

#ifdef LOG
    printf (buf);
#endif
  }
  
  if (proxy != NULL)
    this->fh = http_plugin_host_connect (this->proxyhost, this->proxyport, 
					 this->stream->xine);
  else
    this->fh = http_plugin_host_connect (this->host, this->port, this->stream->xine);

  this->curpos = 0;

  if (this->fh == -1) {
    free (this);
    return NULL;
  }

  if (proxy != NULL)
    if (this->port != DEFAULT_HTTP_PORT)
      sprintf (this->buf, "GET http://%s:%d/%s HTTP/1.0\015\012",
	       this->host, this->port, this->filename);
    else
      sprintf (this->buf, "GET http://%s/%s HTTP/1.0\015\012",
	       this->host, this->filename);
  else
    sprintf (this->buf, "GET /%s HTTP/1.0\015\012", this->filename);
  
  if (this->port != DEFAULT_HTTP_PORT)
    sprintf (this->buf + strlen(this->buf), "Host: %s:%d\015\012",
	     this->host, this->port);
  else
    sprintf (this->buf + strlen(this->buf), "Host: %s\015\012",
	     this->host);
  
  if (this->proxyuser != NULL)
    sprintf (this->buf + strlen(this->buf), "Proxy-Authorization: Basic %s\015\012",
	     this->proxyauth);
  
  if (this->user != NULL)
    sprintf (this->buf + strlen(this->buf), "Authorization: Basic %s\015\012",
	     this->auth);
  
  sprintf (this->buf + strlen(this->buf), "User-Agent: xine/%s\015\012",
	   VERSION);
  
  strcat (this->buf, "Accept: */*\015\012");
  strcat (this->buf, "Icy-MetaData: 1\015\012");
  
  strcat (this->buf, "\015\012");
  
  if (write (this->fh, this->buf, strlen(this->buf)) != strlen(this->buf)) {
    printf ("input_http: couldn't send request\n");
    free (this);
    return NULL ;
  }

#ifdef LOG
  printf ("input_http: request sent: >%s<\n",
	  this->buf);
#endif

  /* read and parse reply */
  done = 0; len = 0; linenum = 0;
  this->contentlength = 0;

  while (!done) {

    /*
    printf ("input_http: read...\n");
    */

    if (read (this->fh, &this->buf[len], 1) <=0) {
      
      switch (errno) {
      case EAGAIN:
	xine_log (this->stream->xine, XINE_LOG_MSG, _("input_http: EAGAIN\n"));
	continue;
      default:
	xine_log (this->stream->xine, XINE_LOG_MSG, _("input_http: read error\n"));
	free (this);
	return NULL;
      }
    }

    if (this->buf[len] == '\012') {

      this->buf[len] = '\0';
      len--;
      
      if (len >= 0 && this->buf[len] == '\015') {
	this->buf[len] = '\0';
	len--;
      }

      linenum++;
      
#ifdef LOG
      printf ("input_http: answer: >%s<\n", this->buf);
#endif

      if (linenum == 1) {
        int httpver, httpsub, httpcode;
	char httpstatus[BUFSIZE];

	if (sscanf(this->buf, "HTTP/%d.%d %d %[^\015\012]", &httpver, &httpsub,
		   &httpcode, httpstatus) != 4)	{
	  
	  /* icecast ? */
	  if (sscanf(this->buf, "ICY %d OK", &httpcode) != 1)	{
	    xine_log (this->stream->xine, XINE_LOG_MSG, 
		      _("input_http: invalid http answer\n"));
	    free (this);
	    return NULL;
	  } else {
	    shoutcast = 1;
	    done = 1;
	  }
	}
	
	if (httpcode >= 300 && httpcode < 400) {
      	  xine_log (this->stream->xine, XINE_LOG_MSG, 
		    _("input_http: 3xx redirection not implemented: >%d %s<\n"),
		    httpcode, httpstatus);
	  free (this);
	  return NULL;
	}
	if (httpcode < 200 || httpcode >= 300) {
      	  xine_log (this->stream->xine, XINE_LOG_MSG, 
		    _("input_http: http status not 2xx: >%d %s<\n"),
		    httpcode, httpstatus);
	  free (this);
	  return NULL;
	}
      } else {
	if (this->contentlength == 0) {
	  off_t contentlength;
	  
	  if (sscanf(this->buf, "Content-Length: %Ld", &contentlength) == 1) {
      	    xine_log (this->stream->xine, XINE_LOG_MSG, 
		      _("input_http: content length = %Ld bytes\n"), contentlength);
	    this->contentlength = contentlength;
	  }
        }
	
	if (!strncasecmp(this->buf, "Location: ", 10)) {
      	  xine_log (this->stream->xine, XINE_LOG_MSG, _("input_http: Location redirection not implemented\n"));
	  free (this);
	  return NULL;
	}
      }
      
      if (len == -1)
	done = 1;
      else
	len = 0;
    } else
      len ++;
  }

#ifdef LOG
  printf ("input_http: end of headers\n");
#endif

  this->nbc    = nbc_init (this->stream);

  nbc_set_high_water_mark(this->nbc, 30);

  /*
   * fill preview buffer
   */

  this->preview_size = http_plugin_read (&this->input_plugin, this->preview,
					 PREVIEW_SIZE);
  
  this->preview_pos  = 0;
  this->curpos  = 0;
  
  /* Trivial shoutcast detection */
  this->shoutcast_metaint = 0;
  this->shoutcast_songtitle = NULL;
  if (shoutcast ||
      !strncasecmp(this->preview, "ICY", 3)) {
    this->mrlbuf2[0] = 'i';
    this->mrlbuf2[1] = 'c';
    this->mrlbuf2[2] = 'e';
    this->mrlbuf2[3] = ' ';
    if (read_shoutcast_header(this)) {
      /* problem when reading shoutcast header */
      free (this);
      return NULL;
    }
    this->shoutcast_mode = 1;
    this->shoutcast_pos = 0;
  } else {
    this->shoutcast_mode = 0;
  }

  this->input_plugin.get_capabilities  = http_plugin_get_capabilities;
  this->input_plugin.read              = http_plugin_read;
  this->input_plugin.read_block        = http_plugin_read_block;
  this->input_plugin.seek              = http_plugin_seek;
  this->input_plugin.get_current_pos   = http_plugin_get_current_pos;
  this->input_plugin.get_length        = http_plugin_get_length;
  this->input_plugin.get_blocksize     = http_plugin_get_blocksize;
  this->input_plugin.get_mrl           = http_plugin_get_mrl;
  this->input_plugin.get_optional_data = http_plugin_get_optional_data;
  this->input_plugin.dispose           = http_plugin_dispose;
  this->input_plugin.input_class       = cls_gen;

  return &this->input_plugin;
}

/*
 * http input plugin class
 */

static char *http_class_get_description (input_class_t *this_gen) {
  return _("http input plugin");
}

static char *http_class_get_identifier (input_class_t *this_gen) {
  return "http";
}

static void http_class_dispose (input_class_t *this_gen) {
  http_input_class_t  *this = (http_input_class_t *) this_gen;

  free (this);
}

static void *init_class (xine_t *xine, void *data) {

  http_input_class_t  *this;
  config_values_t     *config;

  this = (http_input_class_t *) xine_xmalloc (sizeof (http_input_class_t));

  this->xine   = xine;
  this->config = xine->config;
  config       = xine->config;

  this->input_class.open_plugin        = open_plugin;
  this->input_class.get_identifier     = http_class_get_identifier;
  this->input_class.get_description    = http_class_get_description;
  this->input_class.get_dir            = NULL;
  this->input_class.get_autoplay_list  = NULL;
  this->input_class.dispose            = http_class_dispose;
  this->input_class.eject_media        = NULL;

  return this;
}

/*
 * exported plugin catalog entry
 */

plugin_info_t xine_plugin_info[] = {
  /* type, API, "name", version, special_info, init_function */  
  { PLUGIN_INPUT, 11, "http", XINE_VERSION_CODE, NULL, init_class },
  { PLUGIN_NONE, 0, "", 0, NULL, NULL }
};