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vlc/modules/access/http.c

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/*****************************************************************************
* http.c: HTTP input module
*****************************************************************************
* Copyright (C) 2001-2005 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Christophe Massiot <massiot@via.ecp.fr>
* Rémi Denis-Courmont <rem # videolan.org>
*
* This program 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.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
#include "vlc_interaction.h"
#include "vlc_playlist.h"
#include "vlc_meta.h"
#include "network.h"
#include "vlc_url.h"
#include "vlc_tls.h"
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
#define PROXY_TEXT N_("HTTP proxy")
#define PROXY_LONGTEXT N_( \
"HTTP proxy to be usesd It must be of the form " \
"http://[user[:pass]@]myproxy.mydomain:myport/ ; " \
"if empty, the http_proxy environment variable will be tried." )
#define CACHING_TEXT N_("Caching value in ms")
#define CACHING_LONGTEXT N_( \
"Caching value for HTTP streams. This " \
"value should be set in milliseconds." )
#define AGENT_TEXT N_("HTTP user agent")
#define AGENT_LONGTEXT N_("User agent that will be " \
"used for the connection.")
#define RECONNECT_TEXT N_("Auto re-connect")
#define RECONNECT_LONGTEXT N_( \
"Automatically try to reconnect to the stream in case of a sudden " \
"disconnect." )
/// \bug missing space before you should
#define CONTINUOUS_TEXT N_("Continuous stream")
#define CONTINUOUS_LONGTEXT N_("Read a file that is " \
"being constantly updated (for example, a JPG file on a server)." \
"You should not globally enable this option as it will break all other " \
"types of HTTP streams." )
vlc_module_begin();
set_description( _("HTTP input") );
set_capability( "access2", 0 );
set_shortname( _( "HTTP(S)" ) );
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_ACCESS );
add_string( "http-proxy", NULL, NULL, PROXY_TEXT, PROXY_LONGTEXT,
VLC_FALSE );
add_integer( "http-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
add_string( "http-user-agent", COPYRIGHT_MESSAGE , NULL, AGENT_TEXT,
AGENT_LONGTEXT, VLC_TRUE );
add_bool( "http-reconnect", 0, NULL, RECONNECT_TEXT,
RECONNECT_LONGTEXT, VLC_TRUE );
add_bool( "http-continuous", 0, NULL, CONTINUOUS_TEXT,
CONTINUOUS_LONGTEXT, VLC_TRUE );
add_suppressed_string("http-user");
add_suppressed_string("http-pwd");
add_shortcut( "http" );
add_shortcut( "https" );
add_shortcut( "unsv" );
set_callbacks( Open, Close );
vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
struct access_sys_t
{
int fd;
tls_session_t *p_tls;
v_socket_t *p_vs;
/* From uri */
vlc_url_t url;
char *psz_user_agent;
/* Proxy */
vlc_bool_t b_proxy;
vlc_url_t proxy;
/* */
int i_code;
char *psz_protocol;
int i_version;
char *psz_mime;
char *psz_pragma;
char *psz_location;
vlc_bool_t b_mms;
vlc_bool_t b_icecast;
vlc_bool_t b_ssl;
vlc_bool_t b_chunked;
int64_t i_chunk;
int i_icy_meta;
char *psz_icy_name;
char *psz_icy_genre;
char *psz_icy_title;
int i_remaining;
vlc_bool_t b_seekable;
vlc_bool_t b_reconnect;
vlc_bool_t b_continuous;
vlc_bool_t b_pace_control;
};
/* */
static int Read( access_t *, uint8_t *, int );
static int Seek( access_t *, int64_t );
static int Control( access_t *, int, va_list );
/* */
static int Connect( access_t *, int64_t );
static int Request( access_t *p_access, int64_t i_tell );
static void Disconnect( access_t * );
/*****************************************************************************
* Open:
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys;
char *psz, *p;
/* Set up p_access */
p_access->pf_read = Read;
p_access->pf_block = NULL;
p_access->pf_control = Control;
p_access->pf_seek = Seek;
p_access->info.i_update = 0;
p_access->info.i_size = 0;
p_access->info.i_pos = 0;
p_access->info.b_eof = VLC_FALSE;
p_access->info.i_title = 0;
p_access->info.i_seekpoint = 0;
p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
memset( p_sys, 0, sizeof( access_sys_t ) );
p_sys->fd = -1;
p_sys->b_proxy = VLC_FALSE;
p_sys->i_version = 1;
p_sys->b_seekable = VLC_TRUE;
p_sys->psz_mime = NULL;
p_sys->psz_pragma = NULL;
p_sys->b_mms = VLC_FALSE;
p_sys->b_icecast = VLC_FALSE;
p_sys->psz_location = NULL;
p_sys->psz_user_agent = NULL;
p_sys->b_pace_control = VLC_TRUE;
p_sys->b_ssl = VLC_FALSE;
p_sys->p_tls = NULL;
p_sys->p_vs = NULL;
p_sys->i_icy_meta = 0;
p_sys->psz_icy_name = NULL;
p_sys->psz_icy_genre = NULL;
p_sys->psz_icy_title = NULL;
p_sys->i_remaining = 0;
/* Parse URI - remove spaces */
p = psz = strdup( p_access->psz_path );
while( (p = strchr( p, ' ' )) != NULL )
*p = '+';
vlc_UrlParse( &p_sys->url, psz, 0 );
free( psz );
if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == '\0' )
{
msg_Warn( p_access, "invalid host" );
goto error;
}
if( !strncmp( p_access->psz_access, "https", 5 ) )
{
/* HTTP over SSL */
p_sys->b_ssl = VLC_TRUE;
if( p_sys->url.i_port <= 0 )
p_sys->url.i_port = 443;
}
else
{
if( p_sys->url.i_port <= 0 )
p_sys->url.i_port = 80;
}
/* Do user agent */
p_sys->psz_user_agent = var_CreateGetString( p_access, "http-user-agent" );
/* Check proxy */
psz = var_CreateGetString( p_access, "http-proxy" );
if( *psz )
{
p_sys->b_proxy = VLC_TRUE;
vlc_UrlParse( &p_sys->proxy, psz, 0 );
}
#ifdef HAVE_GETENV
else
{
char *psz_proxy = getenv( "http_proxy" );
if( psz_proxy && *psz_proxy )
{
p_sys->b_proxy = VLC_TRUE;
vlc_UrlParse( &p_sys->proxy, psz_proxy, 0 );
}
}
#endif
free( psz );
if( p_sys->b_proxy )
{
if( p_sys->proxy.psz_host == NULL || *p_sys->proxy.psz_host == '\0' )
{
msg_Warn( p_access, "invalid proxy host" );
goto error;
}
if( p_sys->proxy.i_port <= 0 )
{
p_sys->proxy.i_port = 80;
}
}
msg_Dbg( p_access, "http: server='%s' port=%d file='%s",
p_sys->url.psz_host, p_sys->url.i_port, p_sys->url.psz_path );
if( p_sys->b_proxy )
{
msg_Dbg( p_access, " proxy %s:%d", p_sys->proxy.psz_host,
p_sys->proxy.i_port );
}
if( p_sys->url.psz_username && *p_sys->url.psz_username )
{
msg_Dbg( p_access, " user='%s', pwd='%s'",
p_sys->url.psz_username, p_sys->url.psz_password );
}
p_sys->b_reconnect = var_CreateGetBool( p_access, "http-reconnect" );
p_sys->b_continuous = var_CreateGetBool( p_access, "http-continuous" );
connect:
/* Connect */
if( Connect( p_access, 0 ) )
{
/* Retry with http 1.0 */
p_sys->i_version = 0;
if( p_access->b_die ||
Connect( p_access, 0 ) )
{
goto error;
}
}
if( p_sys->i_code == 401 )
{
char *psz_login = NULL; char *psz_password = NULL;
int i_ret;
msg_Dbg( p_access, "authentication failed" );
i_ret = intf_UserLoginPassword( p_access, "HTTP authentication",
"Please enter a valid login and password.", &psz_login, &psz_password );
if( i_ret == DIALOG_OK_YES )
{
msg_Dbg( p_access, "retrying with user=%s, pwd=%s",
psz_login, psz_password );
if( psz_login ) p_sys->url.psz_username = strdup( psz_login );
if( psz_password ) p_sys->url.psz_password = strdup( psz_password );
if( psz_login ) free( psz_login );
if( psz_password ) free( psz_password );
goto connect;
}
else
{
if( psz_login ) free( psz_login );
if( psz_password ) free( psz_password );
goto error;
}
}
if( ( p_sys->i_code == 301 || p_sys->i_code == 302 ||
p_sys->i_code == 303 || p_sys->i_code == 307 ) &&
p_sys->psz_location && *p_sys->psz_location )
{
playlist_t * p_playlist;
input_item_t *p_input_item;
msg_Dbg( p_access, "redirection to %s", p_sys->psz_location );
/* Do not accept redirection outside of HTTP works */
if( strncmp( p_sys->psz_location, "http", 4 )
|| ( ( p_sys->psz_location[4] != ':' ) /* HTTP */
&& strncmp( p_sys->psz_location + 4, "s:", 2 ) /* HTTP/SSL */ ) )
{
msg_Err( p_access, "insecure redirection ignored" );
goto error;
}
p_playlist = vlc_object_find( p_access, VLC_OBJECT_PLAYLIST,
FIND_ANYWHERE );
if( !p_playlist )
{
msg_Err( p_access, "redirection failed: can't find playlist" );
goto error;
}
/* Change the uri */
vlc_mutex_lock( &p_playlist->object_lock );
p_input_item = &p_playlist->status.p_item->input;
vlc_mutex_lock( &p_input_item->lock );
free( p_input_item->psz_uri );
free( p_access->psz_path );
p_input_item->psz_uri = strdup( p_sys->psz_location );
p_access->psz_path = strdup( p_sys->psz_location );
vlc_mutex_unlock( &p_input_item->lock );
vlc_mutex_unlock( &p_playlist->object_lock );
vlc_object_release( p_playlist );
/* Clean up current Open() run */
vlc_UrlClean( &p_sys->url );
vlc_UrlClean( &p_sys->proxy );
if( p_sys->psz_mime ) free( p_sys->psz_mime );
if( p_sys->psz_pragma ) free( p_sys->psz_pragma );
if( p_sys->psz_location ) free( p_sys->psz_location );
if( p_sys->psz_user_agent ) free( p_sys->psz_user_agent );
Disconnect( p_access );
free( p_sys );
/* Do new Open() run with new data */
return Open( p_this );
}
if( p_sys->b_mms )
{
msg_Dbg( p_access, "this is actually a live mms server, BAIL" );
goto error;
}
if( !strcmp( p_sys->psz_protocol, "ICY" ) || p_sys->b_icecast )
{
if( p_sys->psz_mime && strcasecmp( p_sys->psz_mime, "application/ogg" ) )
{
if( !strcasecmp( p_sys->psz_mime, "video/nsv" ) ||
!strcasecmp( p_sys->psz_mime, "video/nsa" ) )
p_access->psz_demux = strdup( "nsv" );
else if( !strcasecmp( p_sys->psz_mime, "audio/aac" ) ||
!strcasecmp( p_sys->psz_mime, "audio/aacp" ) )
p_access->psz_demux = strdup( "m4a" );
else if( !strcasecmp( p_sys->psz_mime, "audio/mpeg" ) )
p_access->psz_demux = strdup( "mp3" );
msg_Info( p_access, "Raw-audio server found, %s demuxer selected",
p_access->psz_demux );
#if 0 /* Doesn't work really well because of the pre-buffering in
* shoutcast servers (the buffer content will be sent as fast as
* possible). */
p_sys->b_pace_control = VLC_FALSE;
#endif
}
else if( !p_sys->psz_mime )
{
/* Shoutcast */
p_access->psz_demux = strdup( "mp3" );
}
/* else probably Ogg Vorbis */
}
else if( !strcasecmp( p_access->psz_access, "unsv" ) &&
p_sys->psz_mime &&
!strcasecmp( p_sys->psz_mime, "misc/ultravox" ) )
{
/* Grrrr! detect ultravox server and force NSV demuxer */
p_access->psz_demux = strdup( "nsv" );
}
else if( p_sys->psz_mime &&
!strcasecmp( p_sys->psz_mime, "application/xspf+xml" ) )
p_access->psz_demux = strdup( "xspf-open" );
if( p_sys->b_reconnect ) msg_Dbg( p_access, "auto re-connect enabled" );
/* PTS delay */
var_Create( p_access, "http-caching", VLC_VAR_INTEGER |VLC_VAR_DOINHERIT );
return VLC_SUCCESS;
error:
vlc_UrlClean( &p_sys->url );
vlc_UrlClean( &p_sys->proxy );
if( p_sys->psz_mime ) free( p_sys->psz_mime );
if( p_sys->psz_pragma ) free( p_sys->psz_pragma );
if( p_sys->psz_location ) free( p_sys->psz_location );
if( p_sys->psz_user_agent ) free( p_sys->psz_user_agent );
Disconnect( p_access );
free( p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
* Close:
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys = p_access->p_sys;
vlc_UrlClean( &p_sys->url );
vlc_UrlClean( &p_sys->proxy );
if( p_sys->psz_mime ) free( p_sys->psz_mime );
if( p_sys->psz_pragma ) free( p_sys->psz_pragma );
if( p_sys->psz_location ) free( p_sys->psz_location );
if( p_sys->psz_icy_name ) free( p_sys->psz_icy_name );
if( p_sys->psz_icy_genre ) free( p_sys->psz_icy_genre );
if( p_sys->psz_icy_title ) free( p_sys->psz_icy_title );
if( p_sys->psz_user_agent ) free( p_sys->psz_user_agent );
Disconnect( p_access );
free( p_sys );
}
/*****************************************************************************
* Read: Read up to i_len bytes from the http connection and place in
* p_buffer. Return the actual number of bytes read
*****************************************************************************/
static int ReadICYMeta( access_t *p_access );
static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
{
access_sys_t *p_sys = p_access->p_sys;
int i_read;
if( p_sys->fd < 0 )
{
p_access->info.b_eof = VLC_TRUE;
return 0;
}
if( p_access->info.i_size > 0 &&
i_len + p_access->info.i_pos > p_access->info.i_size )
{
if( ( i_len = p_access->info.i_size - p_access->info.i_pos ) == 0 )
{
p_access->info.b_eof = VLC_TRUE;
return 0;
}
}
if( p_sys->b_chunked )
{
if( p_sys->i_chunk < 0 )
{
p_access->info.b_eof = VLC_TRUE;
return 0;
}
if( p_sys->i_chunk <= 0 )
{
char *psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, p_sys->p_vs );
/* read the chunk header */
if( psz == NULL )
{
msg_Dbg( p_access, "failed reading chunk-header line" );
return -1;
}
p_sys->i_chunk = strtoll( psz, NULL, 16 );
free( psz );
if( p_sys->i_chunk <= 0 ) /* eof */
{
p_sys->i_chunk = -1;
p_access->info.b_eof = VLC_TRUE;
return 0;
}
}
if( i_len > p_sys->i_chunk )
{
i_len = p_sys->i_chunk;
}
}
if( p_sys->b_continuous && i_len > p_sys->i_remaining )
{
/* Only ask for the remaining length */
int i_new_len = p_sys->i_remaining;
if( i_new_len == 0 )
{
Request( p_access, 0 );
i_read = Read( p_access, p_buffer, i_len );
return i_read;
}
i_len = i_new_len;
}
if( p_sys->i_icy_meta > 0 && p_access->info.i_pos > 0 )
{
int64_t i_next = p_sys->i_icy_meta -
p_access->info.i_pos % p_sys->i_icy_meta;
if( i_next == p_sys->i_icy_meta )
{
if( ReadICYMeta( p_access ) )
{
p_access->info.b_eof = VLC_TRUE;
return -1;
}
}
if( i_len > i_next )
i_len = i_next;
}
i_read = net_Read( p_access, p_sys->fd, p_sys->p_vs, p_buffer, i_len, VLC_FALSE );
if( i_read > 0 )
{
p_access->info.i_pos += i_read;
if( p_sys->b_chunked )
{
p_sys->i_chunk -= i_read;
if( p_sys->i_chunk <= 0 )
{
/* read the empty line */
char *psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, p_sys->p_vs );
if( psz ) free( psz );
}
}
}
else if( i_read == 0 )
{
/*
* I very much doubt that this will work.
* If i_read == 0, the connection *IS* dead, so the only
* sensible thing to do is Disconnect() and then retry.
* Otherwise, I got recv() completely wrong. -- Courmisch
*/
if( p_sys->b_continuous )
{
Request( p_access, 0 );
p_sys->b_continuous = VLC_FALSE;
i_read = Read( p_access, p_buffer, i_len );
p_sys->b_continuous = VLC_TRUE;
}
Disconnect( p_access );
if( p_sys->b_reconnect )
{
msg_Dbg( p_access, "got disconnected, trying to reconnect" );
if( Connect( p_access, p_access->info.i_pos ) )
{
msg_Dbg( p_access, "reconnection failed" );
}
else
{
p_sys->b_reconnect = VLC_FALSE;
i_read = Read( p_access, p_buffer, i_len );
p_sys->b_reconnect = VLC_TRUE;
}
}
if( i_read == 0 ) p_access->info.b_eof = VLC_TRUE;
}
if( p_sys->b_continuous )
{
p_sys->i_remaining -= i_read;
}
return i_read;
}
static int ReadICYMeta( access_t *p_access )
{
access_sys_t *p_sys = p_access->p_sys;
uint8_t buffer;
char *p, *psz_meta;
int i_read;
/* Read meta data length */
i_read = net_Read( p_access, p_sys->fd, p_sys->p_vs, &buffer, 1,
VLC_TRUE );
if( i_read <= 0 )
return VLC_EGENERIC;
if( buffer == 0 )
return VLC_SUCCESS;
i_read = buffer << 4;
/* msg_Dbg( p_access, "ICY meta size=%u", i_read); */
psz_meta = malloc( i_read + 1 );
if( net_Read( p_access, p_sys->fd, p_sys->p_vs,
(uint8_t *)psz_meta, i_read, VLC_TRUE ) != i_read )
return VLC_EGENERIC;
psz_meta[i_read] = '\0'; /* Just in case */
/* msg_Dbg( p_access, "icy-meta=%s", psz_meta ); */
/* Now parse the meta */
/* Look for StreamTitle= */
p = strcasestr( (char *)psz_meta, "StreamTitle=" );
if( p )
{
p += strlen( "StreamTitle=" );
if( *p == '\'' || *p == '"' )
{
char *psz = strchr( &p[1], p[0] );
if( !psz )
psz = strchr( &p[1], ';' );
if( psz ) *psz = '\0';
}
else
{
char *psz = strchr( &p[1], ';' );
if( psz ) *psz = '\0';
}
if( !p_sys->psz_icy_title ||
strcmp( p_sys->psz_icy_title, &p[1] ) )
{
if( p_sys->psz_icy_title )
free( p_sys->psz_icy_title );
p_sys->psz_icy_title = strdup( &p[1] );
p_access->info.i_update |= INPUT_UPDATE_META;
msg_Dbg( p_access, "New Title=%s", p_sys->psz_icy_title );
}
}
free( psz_meta );
return VLC_SUCCESS;
}
/*****************************************************************************
* Seek: close and re-open a connection at the right place
*****************************************************************************/
static int Seek( access_t *p_access, int64_t i_pos )
{
msg_Dbg( p_access, "trying to seek to "I64Fd, i_pos );
Disconnect( p_access );
if( Connect( p_access, i_pos ) )
{
msg_Err( p_access, "seek failed" );
p_access->info.b_eof = VLC_TRUE;
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
/*****************************************************************************
* Control:
*****************************************************************************/
static int Control( access_t *p_access, int i_query, va_list args )
{
access_sys_t *p_sys = p_access->p_sys;
vlc_bool_t *pb_bool;
int *pi_int;
int64_t *pi_64;
vlc_meta_t **pp_meta;
switch( i_query )
{
/* */
case ACCESS_CAN_SEEK:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
*pb_bool = p_sys->b_seekable;
break;
case ACCESS_CAN_FASTSEEK:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
*pb_bool = VLC_FALSE;
break;
case ACCESS_CAN_PAUSE:
case ACCESS_CAN_CONTROL_PACE:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
#if 0 /* Disable for now until we have a clock synchro algo
* which works with something else than MPEG over UDP */
*pb_bool = p_sys->b_pace_control;
#endif
*pb_bool = VLC_TRUE;
break;
/* */
case ACCESS_GET_MTU:
pi_int = (int*)va_arg( args, int * );
*pi_int = 0;
break;
case ACCESS_GET_PTS_DELAY:
pi_64 = (int64_t*)va_arg( args, int64_t * );
*pi_64 = (int64_t)var_GetInteger( p_access, "http-caching" ) * 1000;
break;
/* */
case ACCESS_SET_PAUSE_STATE:
break;
case ACCESS_GET_META:
pp_meta = (vlc_meta_t**)va_arg( args, vlc_meta_t** );
*pp_meta = vlc_meta_New();
if( p_sys->psz_icy_name )
vlc_meta_Add( *pp_meta, VLC_META_TITLE,
p_sys->psz_icy_name );
if( p_sys->psz_icy_genre )
vlc_meta_Add( *pp_meta, VLC_META_GENRE,
p_sys->psz_icy_genre );
if( p_sys->psz_icy_title )
vlc_meta_Add( *pp_meta, VLC_META_NOW_PLAYING,
p_sys->psz_icy_title );
break;
case ACCESS_GET_TITLE_INFO:
case ACCESS_SET_TITLE:
case ACCESS_SET_SEEKPOINT:
case ACCESS_SET_PRIVATE_ID_STATE:
return VLC_EGENERIC;
default:
msg_Warn( p_access, "unimplemented query in control" );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
/*****************************************************************************
* Connect:
*****************************************************************************/
static int Connect( access_t *p_access, int64_t i_tell )
{
access_sys_t *p_sys = p_access->p_sys;
vlc_url_t srv = p_sys->b_proxy ? p_sys->proxy : p_sys->url;
/* Clean info */
if( p_sys->psz_location ) free( p_sys->psz_location );
if( p_sys->psz_mime ) free( p_sys->psz_mime );
if( p_sys->psz_pragma ) free( p_sys->psz_pragma );
if( p_sys->psz_icy_genre ) free( p_sys->psz_icy_genre );
if( p_sys->psz_icy_name ) free( p_sys->psz_icy_name );
if( p_sys->psz_icy_title ) free( p_sys->psz_icy_title );
p_sys->psz_location = NULL;
p_sys->psz_mime = NULL;
p_sys->psz_pragma = NULL;
p_sys->b_mms = VLC_FALSE;
p_sys->b_chunked = VLC_FALSE;
p_sys->i_chunk = 0;
p_sys->i_icy_meta = 0;
p_sys->psz_icy_name = NULL;
p_sys->psz_icy_genre = NULL;
p_sys->psz_icy_title = NULL;
p_access->info.i_size = 0;
p_access->info.i_pos = i_tell;
p_access->info.b_eof = VLC_FALSE;
/* Open connection */
p_sys->fd = net_ConnectTCP( p_access, srv.psz_host, srv.i_port );
if( p_sys->fd < 0 )
{
msg_Err( p_access, "cannot connect to %s:%d", srv.psz_host, srv.i_port );
return VLC_EGENERIC;
}
/* Initialize TLS/SSL session */
if( p_sys->b_ssl == VLC_TRUE )
{
/* CONNECT to establish TLS tunnel through HTTP proxy */
if( p_sys->b_proxy )
{
char *psz;
unsigned i_status = 0;
if( p_sys->i_version == 0 )
{
/* CONNECT is not in HTTP/1.0 */
Disconnect( p_access );
return VLC_EGENERIC;
}
net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
"CONNECT %s:%d HTTP/1.%d\r\nHost: %s:%d\r\n\r\n",
p_sys->url.psz_host, p_sys->url.i_port,
p_sys->i_version,
p_sys->url.psz_host, p_sys->url.i_port);
psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, NULL );
if( psz == NULL )
{
msg_Err( p_access, "cannot establish HTTP/TLS tunnel" );
Disconnect( p_access );
return VLC_EGENERIC;
}
sscanf( psz, "HTTP/%*u.%*u %3u", &i_status );
free( psz );
if( ( i_status / 100 ) != 2 )
{
msg_Err( p_access, "HTTP/TLS tunnel through proxy denied" );
Disconnect( p_access );
return VLC_EGENERIC;
}
do
{
psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, NULL );
if( psz == NULL )
{
msg_Err( p_access, "HTTP proxy connection failed" );
Disconnect( p_access );
return VLC_EGENERIC;
}
if( *psz == '\0' )
i_status = 0;
free( psz );
}
while( i_status );
}
/* TLS/SSL handshake */
p_sys->p_tls = tls_ClientCreate( VLC_OBJECT(p_access), p_sys->fd,
srv.psz_host );
if( p_sys->p_tls == NULL )
{
msg_Err( p_access, "cannot establish HTTP/TLS session" );
Disconnect( p_access );
return VLC_EGENERIC;
}
p_sys->p_vs = &p_sys->p_tls->sock;
}
return Request( p_access, i_tell );
}
static int Request( access_t *p_access, int64_t i_tell )
{
access_sys_t *p_sys = p_access->p_sys;
char *psz ;
v_socket_t *pvs = p_sys->p_vs;
if( p_sys->b_proxy )
{
if( p_sys->url.psz_path )
{
net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
"GET http://%s:%d%s HTTP/1.%d\r\n",
p_sys->url.psz_host, p_sys->url.i_port,
p_sys->url.psz_path, p_sys->i_version );
}
else
{
net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
"GET http://%s:%d/ HTTP/1.%d\r\n",
p_sys->url.psz_host, p_sys->url.i_port,
p_sys->i_version );
}
}
else
{
char *psz_path = p_sys->url.psz_path;
if( !psz_path || !*psz_path )
{
psz_path = "/";
}
if( p_sys->url.i_port != 80)
{
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
"GET %s HTTP/1.%d\r\nHost: %s:%d\r\n",
psz_path, p_sys->i_version, p_sys->url.psz_host,
p_sys->url.i_port );
}
else
{
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
"GET %s HTTP/1.%d\r\nHost: %s\r\n",
psz_path, p_sys->i_version, p_sys->url.psz_host );
}
}
/* User Agent */
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs, "User-Agent: %s\r\n",
p_sys->psz_user_agent );
/* Offset */
if( p_sys->i_version == 1 )
{
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
"Range: bytes="I64Fd"-\r\n", i_tell );
}
/* Authentication */
if( p_sys->url.psz_username && *p_sys->url.psz_username )
{
char *buf;
char *b64;
asprintf( &buf, "%s:%s", p_sys->url.psz_username,
p_sys->url.psz_password ? p_sys->url.psz_password : "" );
b64 = vlc_b64_encode( buf );
free( buf );
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
"Authorization: Basic %s\r\n", b64 );
free( b64 );
}
/* Proxy Authentication */
if( p_sys->proxy.psz_username && *p_sys->proxy.psz_username )
{
char *buf;
char *b64;
asprintf( &buf, "%s:%s", p_sys->proxy.psz_username,
p_sys->proxy.psz_password ? p_sys->proxy.psz_password : "" );
b64 = vlc_b64_encode( buf );
free( buf );
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
"Proxy-Authorization: Basic %s\r\n", b64 );
free( b64 );
}
/* ICY meta data request */
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs, "Icy-MetaData: 1\r\n" );
if( p_sys->b_continuous && p_sys->i_version == 1 )
{
net_Printf( VLC_OBJECT( p_access ), p_sys->fd, pvs,
"Connection: keep-alive\r\n" );
}
else
{
net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs,
"Connection: Close\r\n");
p_sys->b_continuous = VLC_FALSE;
}
if( net_Printf( VLC_OBJECT(p_access), p_sys->fd, pvs, "\r\n" ) < 0 )
{
msg_Err( p_access, "failed to send request" );
Disconnect( p_access );
return VLC_EGENERIC;
}
/* Read Answer */
if( ( psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, pvs ) ) == NULL )
{
msg_Err( p_access, "failed to read answer" );
goto error;
}
if( !strncmp( psz, "HTTP/1.", 7 ) )
{
p_sys->psz_protocol = "HTTP";
p_sys->i_code = atoi( &psz[9] );
}
else if( !strncmp( psz, "ICY", 3 ) )
{
p_sys->psz_protocol = "ICY";
p_sys->i_code = atoi( &psz[4] );
p_sys->b_reconnect = VLC_TRUE;
}
else
{
msg_Err( p_access, "invalid HTTP reply '%s'", psz );
free( psz );
goto error;
}
msg_Dbg( p_access, "protocol '%s' answer code %d",
p_sys->psz_protocol, p_sys->i_code );
if( !strcmp( p_sys->psz_protocol, "ICY" ) )
{
p_sys->b_seekable = VLC_FALSE;
}
if( p_sys->i_code != 206 )
{
p_sys->b_seekable = VLC_FALSE;
}
/* Authentication error - We'll have to display the dialog */
if( p_sys->i_code == 401 )
{
}
/* Other fatal error */
else if( p_sys->i_code >= 400 )
{
msg_Err( p_access, "error: %s", psz );
free( psz );
goto error;
}
free( psz );
for( ;; )
{
char *psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, pvs );
char *p;
if( psz == NULL )
{
msg_Err( p_access, "failed to read answer" );
goto error;
}
/* msg_Dbg( p_input, "Line=%s", psz ); */
if( *psz == '\0' )
{
free( psz );
break;
}
if( ( p = strchr( psz, ':' ) ) == NULL )
{
msg_Err( p_access, "malformed header line: %s", psz );
free( psz );
goto error;
}
*p++ = '\0';
while( *p == ' ' ) p++;
if( !strcasecmp( psz, "Content-Length" ) )
{
if( p_sys->b_continuous )
{
p_access->info.i_size = -1;
msg_Dbg( p_access, "this frame size="I64Fd, atoll(p ) );
p_sys->i_remaining = atoll( p );
}
else
{
p_access->info.i_size = i_tell + atoll( p );
msg_Dbg( p_access, "stream size="I64Fd, p_access->info.i_size );
}
}
else if( !strcasecmp( psz, "Location" ) )
{
if( p_sys->psz_location ) free( p_sys->psz_location );
p_sys->psz_location = strdup( p );
}
else if( !strcasecmp( psz, "Content-Type" ) )
{
if( p_sys->psz_mime ) free( p_sys->psz_mime );
p_sys->psz_mime = strdup( p );
msg_Dbg( p_access, "Content-Type: %s", p_sys->psz_mime );
}
else if( !strcasecmp( psz, "Pragma" ) )
{
if( !strcasecmp( psz, "Pragma: features" ) )
p_sys->b_mms = VLC_TRUE;
if( p_sys->psz_pragma ) free( p_sys->psz_pragma );
p_sys->psz_pragma = strdup( p );
msg_Dbg( p_access, "Pragma: %s", p_sys->psz_pragma );
}
else if( !strcasecmp( psz, "Server" ) )
{
msg_Dbg( p_access, "Server: %s", p );
if( !strncasecmp( p, "Icecast", 7 ) ||
!strncasecmp( p, "Nanocaster", 10 ) )
{
/* Remember if this is Icecast
* we need to force demux in this case without breaking
* autodetection */
/* Let live 365 streams (nanocaster) piggyback on the icecast
* routine. They look very similar */
p_sys->b_reconnect = VLC_TRUE;
p_sys->b_pace_control = VLC_FALSE;
p_sys->b_icecast = VLC_TRUE;
}
}
else if( !strcasecmp( psz, "Transfer-Encoding" ) )
{
msg_Dbg( p_access, "Transfer-Encoding: %s", p );
if( !strncasecmp( p, "chunked", 7 ) )
{
p_sys->b_chunked = VLC_TRUE;
}
}
else if( !strcasecmp( psz, "Icy-MetaInt" ) )
{
msg_Dbg( p_access, "Icy-MetaInt: %s", p );
p_sys->i_icy_meta = atoi( p );
if( p_sys->i_icy_meta < 0 )
p_sys->i_icy_meta = 0;
msg_Warn( p_access, "ICY metaint=%d", p_sys->i_icy_meta );
}
else if( !strcasecmp( psz, "Icy-Name" ) )
{
if( p_sys->psz_icy_name ) free( p_sys->psz_icy_name );
p_sys->psz_icy_name = strdup( p );
msg_Dbg( p_access, "Icy-Name: %s", p_sys->psz_icy_name );
p_sys->b_icecast = VLC_TRUE; /* be on the safeside. set it here as well. */
p_sys->b_reconnect = VLC_TRUE;
p_sys->b_pace_control = VLC_FALSE;
}
else if( !strcasecmp( psz, "Icy-Genre" ) )
{
if( p_sys->psz_icy_genre ) free( p_sys->psz_icy_genre );
p_sys->psz_icy_genre = strdup( p );
msg_Dbg( p_access, "Icy-Genre: %s", p_sys->psz_icy_genre );
}
else if( !strncasecmp( psz, "Icy-Notice", 10 ) )
{
msg_Dbg( p_access, "Icy-Notice: %s", p );
}
else if( !strncasecmp( psz, "icy-", 4 ) ||
!strncasecmp( psz, "ice-", 4 ) ||
!strncasecmp( psz, "x-audiocast", 11 ) )
{
msg_Dbg( p_access, "Meta-Info: %s: %s", psz, p );
}
free( psz );
}
return VLC_SUCCESS;
error:
Disconnect( p_access );
return VLC_EGENERIC;
}
/*****************************************************************************
* Disconnect:
*****************************************************************************/
static void Disconnect( access_t *p_access )
{
access_sys_t *p_sys = p_access->p_sys;
if( p_sys->p_tls != NULL)
{
tls_ClientDelete( p_sys->p_tls );
p_sys->p_tls = NULL;
p_sys->p_vs = NULL;
}
if( p_sys->fd != -1)
{
net_Close(p_sys->fd);
p_sys->fd = -1;
}
}