* httpd.c
*****************************************************************************
* Copyright (C) 2004-2006 the VideoLAN team
+ * Copyright © 2004-2007 Rémi Denis-Courmont
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
#include <vlc_network.h>
#include <vlc_tls.h>
#include <vlc_acl.h>
+#include <vlc_strings.h>
+#include "../libvlc.h"
#include <string.h>
#include <errno.h>
# include <fcntl.h>
#endif
+#ifdef HAVE_POLL
+# include <poll.h>
+#endif
+
#if defined( UNDER_CE )
# include <winsock.h>
#elif defined( WIN32 )
static void httpd_ClientClean( httpd_client_t *cl );
+struct httpd_t
+{
+ VLC_COMMON_MEMBERS
+
+ int i_host;
+ httpd_host_t **host;
+};
+
+
+/* each host run in his own thread */
+struct httpd_host_t
+{
+ VLC_COMMON_MEMBERS
+
+ httpd_t *httpd;
+
+ /* ref count */
+ int i_ref;
+
+ /* address/port and socket for listening at connections */
+ char *psz_hostname;
+ int i_port;
+ int *fds;
+ unsigned nfd;
+
+ vlc_mutex_t lock;
+
+ /* all registered url (becarefull that 2 httpd_url_t could point at the same url)
+ * This will slow down the url research but make my live easier
+ * All url will have their cb trigger, but only the first one can answer
+ * */
+ int i_url;
+ httpd_url_t **url;
+
+ int i_client;
+ httpd_client_t **client;
+
+ /* TLS data */
+ tls_server_t *p_tls;
+};
+
+
struct httpd_url_t
{
httpd_host_t *host;
int i_ref;
- struct sockaddr_storage sock;
- int i_sock_size;
int fd;
int i_mode;
/*****************************************************************************
* Various functions
*****************************************************************************/
-/*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
-static void b64_decode( char *restrict dest, const char *restrict src )
-{
- int i_level;
- int last = 0;
- int b64[256] = {
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 00-0F */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 10-1F */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63, /* 20-2F */
- 52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1, /* 30-3F */
- -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14, /* 40-4F */
- 15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1, /* 50-5F */
- -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40, /* 60-6F */
- 41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1, /* 70-7F */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 80-8F */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 90-9F */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* A0-AF */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* B0-BF */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* C0-CF */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* D0-DF */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* E0-EF */
- -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 /* F0-FF */
- };
-
- for( i_level = 0; *src != '\0'; src++ )
- {
- int c;
-
- c = b64[(unsigned int)*src];
- if( c == -1 )
- {
- continue;
- }
-
- switch( i_level )
- {
- case 0:
- i_level++;
- break;
- case 1:
- *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
- i_level++;
- break;
- case 2:
- *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
- i_level++;
- break;
- case 3:
- *dest++ = ( ( last &0x03 ) << 6 ) | c;
- i_level = 0;
- }
- last = c;
- }
-
- *dest = '\0';
-}
-
static struct
{
const char *psz_ext;
{
httpd_redirect_t *rdir = (httpd_redirect_t*)p_sys;
char *p_body;
+ (void)cl;
if( answer == NULL || query == NULL )
{
);
}
+static const char psz_object_type[] = "http server";
+
httpd_host_t *httpd_TLSHostNew( vlc_object_t *p_this, const char *psz_hostname,
int i_port,
const char *psz_cert, const char *psz_key,
}
/* to be sure to avoid multiple creation */
- var_Create( p_this->p_libvlc_global, "httpd_mutex", VLC_VAR_MUTEX );
- var_Get( p_this->p_libvlc_global, "httpd_mutex", &lockval );
+ var_Create( p_this->p_libvlc, "httpd_mutex", VLC_VAR_MUTEX );
+ var_Get( p_this->p_libvlc, "httpd_mutex", &lockval );
vlc_mutex_lock( lockval.p_address );
if( !(httpd = vlc_object_find( p_this, VLC_OBJECT_HTTPD, FIND_ANYWHERE )) )
{
msg_Info( p_this, "creating httpd" );
- if( ( httpd = vlc_object_create( p_this, VLC_OBJECT_HTTPD ) ) == NULL )
+ httpd = (httpd_t *)vlc_custom_create( p_this, sizeof (*httpd),
+ VLC_OBJECT_HTTPD,
+ psz_object_type );
+ if (httpd == NULL)
{
vlc_mutex_unlock( lockval.p_address );
free( psz_host );
p_tls = NULL;
/* create the new host */
- host = vlc_object_create( p_this, VLC_OBJECT_HTTPD_HOST );
+ host = (httpd_host_t *)vlc_custom_create( p_this, sizeof (*host),
+ VLC_OBJECT_HTTPD_HOST,
+ psz_object_type );
+ if (host == NULL)
+ goto error;
+
host->httpd = httpd;
vlc_mutex_init( httpd, &host->lock );
host->i_ref = 1;
- host->fd = net_ListenTCP( p_this, psz_host, i_port );
- if( host->fd == NULL )
+ host->fds = net_ListenTCP( p_this, psz_host, i_port );
+ if( host->fds == NULL )
{
msg_Err( p_this, "cannot create socket(s) for HTTP host" );
goto error;
}
+ for (host->nfd = 0; host->fds[host->nfd] != -1; host->nfd++);
host->i_port = i_port;
host->psz_hostname = psz_host;
if( host != NULL )
{
- net_ListenClose( host->fd );
+ net_ListenClose( host->fds );
vlc_mutex_destroy( &host->lock );
vlc_object_destroy( host );
}
vlc_value_t lockval;
int i;
- var_Get( httpd->p_libvlc_global, "httpd_mutex", &lockval );
+ var_Get( httpd->p_libvlc, "httpd_mutex", &lockval );
vlc_mutex_lock( lockval.p_address );
host->i_ref--;
}
TAB_REMOVE( httpd->i_host, httpd->host, host );
- host->b_die = 1;
+ vlc_object_kill( host );
vlc_thread_join( host );
msg_Dbg( host, "HTTP host removed" );
if( host->p_tls != NULL)
tls_ServerDelete( host->p_tls );
- net_ListenClose( host->fd );
+ net_ListenClose( host->fds );
free( host->psz_hostname );
vlc_mutex_destroy( &host->lock );
char *value = NULL;
va_start( args, psz_value );
-#if defined(HAVE_VASPRINTF) && !defined(__APPLE__) && !defined(SYS_BEOS)
- vasprintf( &value, psz_value, args );
-#else
- {
- int i_size = strlen( psz_value ) + 4096; /* FIXME stupid system */
- value = calloc( i_size, sizeof( char ) );
- vsnprintf( value, i_size, psz_value, args );
- value[i_size - 1] = 0;
- }
-#endif
+ if( vasprintf( &value, psz_value, args ) == -1 )
+ value = NULL;
va_end( args );
+ if( value == NULL )
+ return;
+
name = strdup( name );
+ if( name == NULL )
+ {
+ free( value );
+ return;
+ }
- TAB_APPEND( msg->i_name, msg->name, name );
+ TAB_APPEND( msg->i_name, msg->name, (char*)name );
TAB_APPEND( msg->i_value, msg->value, value );
}
-static void httpd_ClientInit( httpd_client_t *cl )
+static void httpd_ClientInit( httpd_client_t *cl, mtime_t now )
{
cl->i_state = HTTPD_CLIENT_RECEIVING;
- cl->i_activity_date = mdate();
+ cl->i_activity_date = now;
cl->i_activity_timeout = I64C(10000000);
cl->i_buffer_size = HTTPD_CL_BUFSIZE;
cl->i_buffer = 0;
}
}
-static httpd_client_t *httpd_ClientNew( int fd, struct sockaddr_storage *sock,
- int i_sock_size,
- tls_session_t *p_tls )
+static httpd_client_t *httpd_ClientNew( int fd, tls_session_t *p_tls, mtime_t now )
{
httpd_client_t *cl = malloc( sizeof( httpd_client_t ) );
cl->i_ref = 0;
cl->fd = fd;
- memcpy( &cl->sock, sock, sizeof( cl->sock ) );
- cl->i_sock_size = i_sock_size;
cl->url = NULL;
cl->p_tls = p_tls;
- httpd_ClientInit( cl );
+ httpd_ClientInit( cl, now );
return cl;
}
cl->i_state = HTTPD_CLIENT_DEAD;
}
}
- cl->i_activity_date = mdate();
/* XXX: for QT I have to disable timeout. Try to find why */
if( cl->query.i_proto == HTTPD_PROTO_RTSP )
cl->i_buffer_size - cl->i_buffer );
if( i_len >= 0 )
{
- cl->i_activity_date = mdate();
cl->i_buffer += i_len;
if( cl->i_buffer >= cl->i_buffer_size )
static void httpd_HostThread( httpd_host_t *host )
{
tls_session_t *p_tls = NULL;
-
- host->p_total_counter = stats_CounterCreate( host,
- VLC_VAR_INTEGER, STATS_COUNTER );
- host->p_active_counter = stats_CounterCreate( host,
- VLC_VAR_INTEGER, STATS_COUNTER );
+ counter_t *p_total_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
+ counter_t *p_active_counter = stats_CounterCreate( host, VLC_VAR_INTEGER, STATS_COUNTER );
while( !host->b_die )
{
- struct timeval timeout;
- fd_set fds_read;
- fd_set fds_write;
- /* FIXME: (too) many int variables */
- int fd, i_fd;
- int i_handle_max = -1;
- int i_ret;
- int i_client;
- int b_low_delay = 0;
-
if( host->i_url <= 0 )
{
/* 0.2s */
continue;
}
- /* built a set of handle to select */
- FD_ZERO( &fds_read );
- FD_ZERO( &fds_write );
-
- for( i_fd = 0; (fd = host->fd[i_fd]) != -1; i_fd++ )
- {
- FD_SET( fd, &fds_read );
- if( fd > i_handle_max )
- i_handle_max = fd;
- }
-
/* prepare a new TLS session */
if( ( p_tls == NULL ) && ( host->p_tls != NULL ) )
p_tls = tls_ServerSessionPrepare( host->p_tls );
+ struct pollfd ufd[host->nfd + host->i_client];
+ unsigned nfd;
+ for( nfd = 0; nfd < host->nfd; nfd++ )
+ {
+ ufd[nfd].fd = host->fds[nfd];
+ ufd[nfd].events = POLLIN;
+ ufd[nfd].revents = 0;
+ }
+
/* add all socket that should be read/write and close dead connection */
vlc_mutex_lock( &host->lock );
- for( i_client = 0; i_client < host->i_client; i_client++ )
+ mtime_t now = mdate();
+ vlc_bool_t b_low_delay = VLC_FALSE;
+
+ for(int i_client = 0; i_client < host->i_client; i_client++ )
{
httpd_client_t *cl = host->client[i_client];
-
if( cl->i_ref < 0 || ( cl->i_ref == 0 &&
( cl->i_state == HTTPD_CLIENT_DEAD ||
( cl->i_activity_timeout > 0 &&
- cl->i_activity_date+cl->i_activity_timeout < mdate()) ) ) )
+ cl->i_activity_date+cl->i_activity_timeout < now) ) ) )
{
httpd_ClientClean( cl );
- stats_UpdateInteger( host, host->p_active_counter, -1, NULL );
+ stats_UpdateInteger( host, p_active_counter, -1, NULL );
TAB_REMOVE( host->i_client, host->client, cl );
free( cl );
i_client--;
continue;
}
- else if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
+
+ struct pollfd *pufd = ufd + nfd;
+ assert (pufd < ufd + (sizeof (ufd) / sizeof (ufd[0])));
+
+ pufd->fd = cl->fd;
+ pufd->events = pufd->revents = 0;
+
+ if( ( cl->i_state == HTTPD_CLIENT_RECEIVING )
|| ( cl->i_state == HTTPD_CLIENT_TLS_HS_IN ) )
{
- FD_SET( cl->fd, &fds_read );
- i_handle_max = __MAX( i_handle_max, cl->fd );
+ pufd->events = POLLIN;
}
else if( ( cl->i_state == HTTPD_CLIENT_SENDING )
|| ( cl->i_state == HTTPD_CLIENT_TLS_HS_OUT ) )
{
- FD_SET( cl->fd, &fds_write );
- i_handle_max = __MAX( i_handle_max, cl->fd );
+ pufd->events = POLLOUT;
}
else if( cl->i_state == HTTPD_CLIENT_RECEIVE_DONE )
{
{
vlc_bool_t b_auth_failed = VLC_FALSE;
vlc_bool_t b_hosts_failed = VLC_FALSE;
- int i;
/* Search the url and trigger callbacks */
- for( i = 0; i < host->i_url; i++ )
+ for(int i = 0; i < host->i_url; i++ )
{
httpd_url_t *url = host->url[i];
{
char ip[NI_MAXNUMERICHOST];
- if( httpd_ClientIP( cl, ip ) != NULL )
+ if( ( httpd_ClientIP( cl, ip ) == NULL )
+ || ACL_Check( url->p_acl, ip ) )
{
- if( ACL_Check( url->p_acl, ip ) )
- {
- b_hosts_failed = VLC_TRUE;
- break;
- }
- }
- else
b_hosts_failed = VLC_TRUE;
+ break;
+ }
}
if( answer && ( *url->psz_user || *url->psz_password ) )
{
/* create the headers */
const char *b64 = httpd_MsgGet( query, "Authorization" ); /* BASIC id */
- char *auth;
- char *id;
+ char *user = NULL, *pass = NULL;
- asprintf( &id, "%s:%s", url->psz_user, url->psz_password );
if( b64 != NULL
- && !strncasecmp( b64, "BASIC", 5 ) )
+ && !strncasecmp( b64, "BASIC", 5 ) )
{
b64 += 5;
while( *b64 == ' ' )
- {
b64++;
+
+ user = vlc_b64_decode( b64 );
+ if (user != NULL)
+ {
+ pass = strchr (user, ':');
+ if (pass != NULL)
+ *pass++ = '\0';
}
- auth = malloc( strlen(b64) + 1 );
- b64_decode( auth, b64 );
- }
- else
- {
- auth = strdup( "" );
}
- if( strcmp( id, auth ) )
+ if ((user == NULL) || (pass == NULL)
+ || strcmp (user, url->psz_user)
+ || strcmp (pass, url->psz_password))
{
- httpd_MsgAdd( answer, "WWW-Authenticate", "Basic realm=\"%s\"", url->psz_user );
+ httpd_MsgAdd( answer,
+ "WWW-Authenticate",
+ "Basic realm=\"%s\"",
+ url->psz_user );
/* We fail for all url */
b_auth_failed = VLC_TRUE;
- free( id );
- free( auth );
+ free( user );
break;
}
- free( id );
- free( auth );
+ free( user );
}
if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
&cl->answer, &cl->query );
if( cl->answer.i_type != HTTPD_MSG_NONE )
{
- /* we have new data, so reenter send mode */
+ /* we have new data, so re-enter send mode */
cl->i_buffer = 0;
cl->p_buffer = cl->answer.p_body;
cl->i_buffer_size = cl->answer.i_body;
if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
cl->i_state == HTTPD_CLIENT_SENDING )
{
- FD_SET( cl->fd, &fds_read );
- i_handle_max = __MAX( i_handle_max, cl->fd );
+ pufd->events |= POLLIN;
}
+
+ if (pufd->events != 0)
+ nfd++;
}
vlc_mutex_unlock( &host->lock );
/* we will wait 100ms or 20ms (not too big 'cause HTTPD_CLIENT_WAITING) */
- timeout.tv_sec = 0;
- timeout.tv_usec = b_low_delay ? 20000 : 100000;
-
- i_ret = select( i_handle_max + 1,
- &fds_read, &fds_write, NULL, &timeout );
-
- if( (i_ret == -1) && (errno != EINTR) )
- {
- msg_Warn( host, "select error: %s", net_strerror( net_errno ) );
- msleep( 1000 );
- continue;
- }
- else if( i_ret <= 0 )
- {
- continue;
- }
-
- /* accept new connections */
- for( i_fd = 0; (fd = host->fd[i_fd]) != -1; i_fd++ )
+ switch( poll( ufd, nfd, b_low_delay ? 20 : 100) )
{
- if( FD_ISSET( fd, &fds_read ) )
- {
- socklen_t i_sock_size = sizeof( struct sockaddr_storage );
- struct sockaddr_storage sock;
-
- fd = accept( fd, (struct sockaddr *)&sock, &i_sock_size );
-
- if( fd >= 0 )
+ case -1:
+ if (errno != EINTR)
{
- int i_state = 1;
-
- setsockopt( fd, SOL_SOCKET, SO_REUSEADDR, &i_state, sizeof (i_state));
- i_state = 0;
-
- /* set this new socket non-block */
-#if defined( WIN32 ) || defined( UNDER_CE )
- {
- unsigned long i_dummy = 1;
- ioctlsocket( fd, FIONBIO, &i_dummy );
- }
-#else
- fcntl( fd, F_SETFD, FD_CLOEXEC );
- {
- int i_val = fcntl( fd, F_GETFL );
- fcntl( fd, F_SETFL,
- O_NONBLOCK | ((i_val != -1) ? i_val : 0) );
- }
-
- if( fd >= FD_SETSIZE )
- {
- net_Close( fd );
- fd = -1;
- }
- else
-#endif
- if( p_tls != NULL)
- {
- switch ( tls_ServerSessionHandshake( p_tls, fd ) )
- {
- case -1:
- msg_Err( host, "Rejecting TLS connection" );
- net_Close( fd );
- fd = -1;
- p_tls = NULL;
- break;
-
- case 1: /* missing input - most likely */
- i_state = HTTPD_CLIENT_TLS_HS_IN;
- break;
-
- case 2: /* missing output */
- i_state = HTTPD_CLIENT_TLS_HS_OUT;
- break;
- }
- }
-
- if( fd >= 0 )
- {
- httpd_client_t *cl;
- char ip[NI_MAXNUMERICHOST];
- stats_UpdateInteger( host, host->p_total_counter,
- 1, NULL );
- stats_UpdateInteger( host, host->p_active_counter,
- 1, NULL );
- cl = httpd_ClientNew( fd, &sock, i_sock_size, p_tls );
- httpd_ClientIP( cl, ip );
- msg_Dbg( host, "Connection from %s", ip );
- p_tls = NULL;
- vlc_mutex_lock( &host->lock );
- TAB_APPEND( host->i_client, host->client, cl );
- vlc_mutex_unlock( &host->lock );
-
- if( i_state != 0 )
- cl->i_state = i_state; // override state for TLS
- }
+ /* This is most likely a bug */
+ msg_Err( host, "polling error: %s", strerror (errno));
+ msleep( 1000 );
}
- }
+ case 0:
+ continue;
}
- /* now try all others socket */
+ /* Handle client sockets */
vlc_mutex_lock( &host->lock );
- for( i_client = 0; i_client < host->i_client; i_client++ )
+ now = mdate();
+ for( int i_client = 0; i_client < host->i_client; i_client++ )
{
httpd_client_t *cl = host->client[i_client];
+ const struct pollfd *pufd = &ufd[host->nfd + i_client];
+
+ assert( pufd < &ufd[sizeof(ufd) / sizeof(ufd[0])] );
+
+ if( cl->fd != pufd->fd )
+ continue; // we were not waiting for this client
+ if( pufd->revents == 0 )
+ continue; // no event received
+
+ cl->i_activity_date = now;
+
if( cl->i_state == HTTPD_CLIENT_RECEIVING )
{
httpd_ClientRecv( cl );
if( cl->i_mode == HTTPD_CLIENT_BIDIR &&
cl->i_state == HTTPD_CLIENT_SENDING &&
- FD_ISSET( cl->fd, &fds_read ) )
+ (pufd->revents & POLLIN) )
{
cl->b_read_waiting = VLC_TRUE;
}
}
vlc_mutex_unlock( &host->lock );
+
+ /* Handle server sockets (accept new connections) */
+ for( nfd = 0; nfd < host->nfd; nfd++ )
+ {
+ httpd_client_t *cl;
+ int i_state = -1;
+
+ assert (ufd[nfd].fd == host->fds[nfd]);
+
+ if( ufd[nfd].revents == 0 )
+ continue;
+
+ /* */
+ int kludge[] = { ufd[nfd].fd, -1 };
+ int fd = net_Accept( host, kludge, 0 );
+ if( fd < 0 )
+ continue;
+
+ if( p_tls != NULL )
+ {
+ switch( tls_ServerSessionHandshake( p_tls, fd ) )
+ {
+ case -1:
+ msg_Err( host, "Rejecting TLS connection" );
+ net_Close( fd );
+ fd = -1;
+ p_tls = NULL;
+ break;
+
+ case 1: /* missing input - most likely */
+ i_state = HTTPD_CLIENT_TLS_HS_IN;
+ break;
+
+ case 2: /* missing output */
+ i_state = HTTPD_CLIENT_TLS_HS_OUT;
+ break;
+ }
+
+ if( (p_tls == NULL) != (host->p_tls == NULL) )
+ break; // wasted TLS session, cannot accept() anymore
+ }
+
+ stats_UpdateInteger( host, p_total_counter, 1, NULL );
+ stats_UpdateInteger( host, p_active_counter, 1, NULL );
+ cl = httpd_ClientNew( fd, p_tls, now );
+ p_tls = NULL;
+ vlc_mutex_lock( &host->lock );
+ TAB_APPEND( host->i_client, host->client, cl );
+ vlc_mutex_unlock( &host->lock );
+ if( i_state != -1 )
+ cl->i_state = i_state; // override state for TLS
+
+ if (host->p_tls != NULL)
+ break; // cannot accept further without new TLS session
+ }
+
}
if( p_tls != NULL )
tls_ServerSessionClose( p_tls );
+ if( p_total_counter )
+ stats_CounterClean( p_total_counter );
+ if( p_active_counter )
+ stats_CounterClean( p_active_counter );
}
#else /* ENABLE_HTTPD */