コード例 #1
0
ファイル: conn.c プロジェクト: FiloSottile/axel
int conn_setup( conn_t *conn )
{
	if( conn->ftp->fd <= 0 && conn->http->fd <= 0 )
		if( !conn_init( conn ) )
			return( 0 );
	
	if( conn->proto == PROTO_FTP && !conn->proxy )
	{
		if( !ftp_data( conn->ftp ) )	/* Set up data connnection	*/
			return( 0 );
		conn->fd = conn->ftp->data_fd;
		
		if( conn->currentbyte )
		{
			ftp_command( conn->ftp, "REST %lld", conn->currentbyte );
			if( ftp_wait( conn->ftp ) / 100 != 3 &&
			    conn->ftp->status / 100 != 2 )
				return( 0 );
		}
	}
	else
	{
		char s[MAX_STRING];
		int i;

		snprintf( s, MAX_STRING, "%s%s", conn->dir, conn->file );
		conn->http->firstbyte = conn->currentbyte;
		conn->http->lastbyte = conn->lastbyte;
		http_get( conn->http, s );
		http_addheader( conn->http, "User-Agent: %s", conn->conf->user_agent );
		for( i = 0; i < conn->conf->add_header_count; i++)
			http_addheader( conn->http, "%s", conn->conf->add_header[i] );
	}
	return( 1 );
}
コード例 #2
0
ファイル: conn.c プロジェクト: ghuntley/axel
int conn_setup( conn_t *conn )
{
	if( conn->ftp->fd <= 0 && conn->http->fd <= 0 )
		if( !conn_init( conn ) )
			return( 0 );
	
	if( conn->proto == PROTO_FTP && !conn->proxy )
	{
		if( !ftp_data( conn->ftp ) )	/* Set up data connnection	*/
			return( 0 );
		conn->fd = conn->ftp->data_fd;
		
		if( conn->currentbyte )
		{
			ftp_command( conn->ftp, "REST %i", conn->currentbyte );
			if( ftp_wait( conn->ftp ) / 100 != 3 &&
			    conn->ftp->status / 100 != 2 )
				return( 0 );
		}
	}
	else
	{
		char s[MAX_STRING];
		
		snprintf( s, MAX_STRING, "%s%s", conn->dir, conn->file );
		conn->http->firstbyte = conn->currentbyte;
		conn->http->lastbyte = conn->lastbyte;
		http_get( conn->http, s );
	}
	return( 1 );
}
コード例 #3
0
ファイル: ftp.c プロジェクト: 3rdexp/xsandbox
int ftp_connect( ftp_t *conn, char *host, int port, char *user, char *pass )
{
#if WIN32
	conn->data_fd = INVALID_SOCKET;
#else
	conn->data_fd = -1;
#endif
	conn->message = malloc( MAX_STRING );
	
	if( ( conn->fd = tcp_connect( host, port, conn->local_if ) ) == -1 )
	{
		sprintf( conn->message, _("Unable to connect to server %s:%i\n"), host, port );
		return( 0 );
	}
	
	if( ftp_wait( conn ) / 100 != 2 )
		return( 0 );
	
	ftp_command( conn, "USER %s", user );
	if( ftp_wait( conn ) / 100 != 2 )
	{
		if( conn->status / 100 == 3 )
		{
			ftp_command( conn, "PASS %s", pass );
			if( ftp_wait( conn ) / 100 != 2 )
				return( 0 );
		}		
		else
		{
			return( 0 );
		}
	}
	
	/* ASCII mode sucks. Just use Binary.. */
	ftp_command( conn, "TYPE I" );
	if( ftp_wait( conn ) / 100 != 2 )
		return( 0 );
	
	return( 1 );
}
コード例 #4
0
ファイル: ftp.c プロジェクト: selecli/squid
/* Change current working directory					*/
int ftp_cwd( ftp_t *conn, char *cwd )
{
	/* Necessary at all? */
	if( strncmp( conn->cwd, cwd, MAX_STRING ) == 0 )
		return( 1 );

	ftp_command( conn, "CWD %s", cwd );
	if( ftp_wait( conn ) / 100 != 2 )
		return( 0 );

	strncpy( conn->cwd, cwd, MAX_STRING );

	return( 1 );
}
コード例 #5
0
ファイル: conn.c プロジェクト: 3rdexp/xsandbox
int conn_setup(conn_t *conn)
{
#if WIN32
	if (INVALID_SOCKET == conn->ftp->fd && INVALID_SOCKET == conn->http->fd)
#else
	if (conn->ftp->fd <= 0 && conn->http->fd <= 0) 
#endif
	{
		if (!conn_init(conn)) 
		{
			return 0;
		}
	}
	
	if (conn->proto == PROTO_FTP && !conn->proxy)
	{
		/* Set up data connnection	*/
		if(!ftp_data(conn->ftp)) 
		{	
			return 0;
		}
		conn->fd = conn->ftp->data_fd;
		
		if (conn->currentbyte)
		{
			ftp_command(conn->ftp, "REST %lld", conn->currentbyte);
			if (ftp_wait(conn->ftp) / 100 != 3 && conn->ftp->status / 100 != 2) 
			{
				return 0;
			}
		}
	}
	else
	{
		char s[MAX_STRING];
		int i;

		snprintf(s, MAX_STRING, "%s%s", conn->dir, conn->file);
		conn->http->firstbyte = conn->currentbyte;
		conn->http->lastbyte = conn->lastbyte;
		http_get(conn->http, s);
		http_addheader(conn->http, "User-Agent: %s", conn->conf->user_agent);
		for (i = 0; i < conn->conf->add_header_count; i++) 
		{
			http_addheader(conn->http, "%s", conn->conf->add_header[i]);
		}
	}
	return 1;
}
コード例 #6
0
ファイル: conn.c プロジェクト: FiloSottile/axel
int conn_exec( conn_t *conn )
{
	if( conn->proto == PROTO_FTP && !conn->proxy )
	{
		if( !ftp_command( conn->ftp, "RETR %s", conn->file ) )
			return( 0 );
		return( ftp_wait( conn->ftp ) / 100 == 1 );
	}
	else
	{
		if( !http_exec( conn->http ) )
			return( 0 );
		return( conn->http->status / 100 == 2 );
	}
}
コード例 #7
0
ファイル: ftp.c プロジェクト: a710128/axel
/* Change current working directory					*/
int ftp_cwd( ftp_t *conn, char *cwd )
{
	/* Necessary at all? */
	if( strncmp( conn->cwd, cwd, MAX_STRING ) == 0 )
		return( 1 );
	
	ftp_command( conn, "CWD %s", cwd );
	if( ftp_wait( conn ) / 100 != 2 )
	{
		fprintf( stderr, _("Can't change directory to %s\n"), cwd );
		return( 0 );
	}
	
	strncpy( conn->cwd, cwd, MAX_STRING );
	
	return( 1 );
}
コード例 #8
0
ファイル: ftp.c プロジェクト: a710128/axel
/* Open a data connection. Only Passive mode supported yet, easier..	*/
int ftp_data( ftp_t *conn )
{
	int i, info[6];
	char host[MAX_STRING];
	
	/* Already done?						*/
	if( conn->data_fd > 0 )
		return( 0 );
	
/*	if( conn->ftp_mode == FTP_PASSIVE )
	{
*/		ftp_command( conn, "PASV" );
		if( ftp_wait( conn ) / 100 != 2 )
			return( 0 );
		*host = 0;
		for( i = 0; conn->message[i]; i ++ )
		{
			if( sscanf( &conn->message[i], "%i,%i,%i,%i,%i,%i",
			            &info[0], &info[1], &info[2], &info[3],
			            &info[4], &info[5] ) == 6 )
			{
				sprintf( host, "%i.%i.%i.%i",
				         info[0], info[1], info[2], info[3] );
				break;
			}
		}
		if( !*host )
		{
			sprintf( conn->message, _("Error opening passive data connection.\n") );
			return( 0 );
		}
		if( ( conn->data_fd = tcp_connect( host,
			info[4] * 256 + info[5], conn->local_if ) ) == -1 )
		{
			sprintf( conn->message, _("Error opening passive data connection.\n") );
			return( 0 );
		}
		
		return( 1 );
/*	}
	else
	{
		sprintf( conn->message, _("Active FTP not implemented yet.\n" ) );
		return( 0 );
	} */
}
コード例 #9
0
ファイル: ftp.c プロジェクト: a710128/axel
/* Get file size. Should work with all reasonable servers now		*/
long long int ftp_size( ftp_t *conn, char *file, int maxredir )
{
	long long int i, j, size = MAX_STRING;
	char *reply, *s, fn[MAX_STRING];
	
	/* Try the SIZE command first, if possible			*/
	if( !strchr( file, '*' ) && !strchr( file, '?' ) )
	{
		ftp_command( conn, "SIZE %s", file );
		if( ftp_wait( conn ) / 100 == 2 )
		{
			sscanf( conn->message, "%*i %lld", &i );
			return( i );
		}
		else if( conn->status / 10 != 50 )
		{
			sprintf( conn->message, _("File not found.\n") );
			return( -1 );
		}
	}
	
	if( maxredir == 0 )
	{
		sprintf( conn->message, _("Too many redirects.\n") );
		return( -1 );
	}
	
	if( !ftp_data( conn ) )
		return( -1 );
	
	ftp_command( conn, "LIST %s", file );
	if( ftp_wait( conn ) / 100 != 1 )
		return( -1 );
	
	/* Read reply from the server.					*/
	reply = malloc( size );
	memset( reply, 0, size );
	*reply = '\n';
	i = 1;
	while( ( j = read( conn->data_fd, reply + i, size - i - 3 ) ) > 0 )
	{
		i += j;
		reply[i] = 0;
		if( size - i <= 10 )
		{
			size *= 2;
			reply = realloc( reply, size );
			memset( reply + size / 2, 0, size / 2 );
		}
	}
	close( conn->data_fd );
	conn->data_fd = -1;
	
	if( ftp_wait( conn ) / 100 != 2 )
	{
		free( reply );
		return( -1 );
	}
	
#ifdef DEBUG
    fprintf(stderr, "%s", reply);
#endif
	
	/* Count the number of probably legal matches: Files&Links only	*/
	j = 0;
	for( i = 1; reply[i] && reply[i+1]; i ++ )
		if( reply[i] == '-' || reply[i] == 'l' )
			j ++;
		else
			while( reply[i] != '\n' && reply[i] )
				i ++;
	
	/* No match or more than one match				*/
	if( j != 1 )
	{
		if( j == 0 )
			sprintf( conn->message, _("File not found.\n") );
		else
			sprintf( conn->message, _("Multiple matches for this URL.\n") );
		free( reply );
		return( -1 );
	}

	/* Symlink handling						*/
	if( ( s = strstr( reply, "\nl" ) ) != NULL )
	{
		/* Get the real filename */
		sscanf( s, "%*s %*i %*s %*s %*i %*s %*i %*s %100s", fn );
		strcpy( file, fn );
		
		/* Get size of the file linked to			*/
		strncpy( fn, strstr( s, "->" ) + 3, MAX_STRING );
		free( reply );
		if( ( reply = strchr( fn, '\r' ) ) != NULL )
			*reply = 0;
		if( ( reply = strchr( fn, '\n' ) ) != NULL )
			*reply = 0;
		return( ftp_size( conn, fn, maxredir - 1 ) );
	}
	/* Normal file, so read the size! And read filename because of
	   possible wildcards.						*/
	else
	{
		s = strstr( reply, "\n-" );
		i = sscanf( s, "%*s %*i %*s %*s %lld %*s %*i %*s %100s", &size, fn );
		if( i < 2 )
		{
			i = sscanf( s, "%*s %*i %lld %*i %*s %*i %*i %100s", &size, fn );
			if( i < 2 )
			{
				return( -2 );
			}
		}
		strcpy( file, fn );
		
		free( reply );
		return( size );
	}
}
コード例 #10
0
ファイル: conn.c プロジェクト: FiloSottile/axel
/* Get file size and other information					*/
int conn_info( conn_t *conn )
{
	/* It's all a bit messed up.. But it works.			*/
	if( conn->proto == PROTO_FTP && !conn->proxy )
	{
		ftp_command( conn->ftp, "REST %lld", 1 );
		if( ftp_wait( conn->ftp ) / 100 == 3 ||
		    conn->ftp->status / 100 == 2 )
		{
			conn->supported = 1;
			ftp_command( conn->ftp, "REST %lld", 0 );
			ftp_wait( conn->ftp );
		}
		else
		{
			conn->supported = 0;
		}
		
		if( !ftp_cwd( conn->ftp, conn->dir ) )
			return( 0 );
		conn->size = ftp_size( conn->ftp, conn->file, MAX_REDIR );
		if( conn->size < 0 )
			conn->supported = 0;
		if( conn->size == -1 )
			return( 0 );
		else if( conn->size == -2 )
			conn->size = INT_MAX;
	}
	else
	{
		char s[MAX_STRING], *t;
		long long int i = 0;
		
		do
		{
			conn->currentbyte = 1;
			if( !conn_setup( conn ) )
				return( 0 );
			conn_exec( conn );
			conn_disconnect( conn );
			/* Code 3xx == redirect				*/
			if( conn->http->status / 100 != 3 )
				break;
			if( ( t = http_header( conn->http, "location:" ) ) == NULL )
				return( 0 );
			sscanf( t, "%1023s", s );  // Warning: truncating to MAX_STRING
			if( strstr( s, "://" ) == NULL)
			{
				sprintf( conn->http->headers, "%s%s",
					conn_url( conn ), s );
				strncpy( s, conn->http->headers, MAX_STRING );
			}
			else if( s[0] == '/' )
			{
				sprintf( conn->http->headers, "http://%s:%i%s",
					conn->host, conn->port, s );
				strncpy( s, conn->http->headers, MAX_STRING );
			}
			conn_set( conn, s );
			i ++;
		}
		while( conn->http->status / 100 == 3 && i < MAX_REDIR );
		
		if( i == MAX_REDIR )
		{
			sprintf( conn->message, _("Too many redirects.\n") );
			return( 0 );
		}
		
		conn->size = http_size( conn->http );
		if( conn->http->status == 206 && conn->size >= 0 )
		{
			conn->supported = 1;
			conn->size ++;
		}
		else if( conn->http->status == 200 || conn->http->status == 206 )
		{
			conn->supported = 0;
			conn->size = INT_MAX;
		}
		else
		{
			t = strchr( conn->message, '\n' );
			if( t == NULL )
				sprintf( conn->message, _("Unknown HTTP error.\n") );
			else
				*t = 0;
			return( 0 );
		}
	}
	
	return( 1 );
}