Книжка "Профессиональное PHP программирование (2-е издание)"
Глава 10. Кодирование клиентов FTP.
Делать было нечего, набрал пример, приведенный в книге. Опечатки, вроде все отловил, с принципом работы разобрался, перепроверил, не работает 
Может кто-нить уже копался до меня в этом примере? В чем причина?
| Код |
<?
set_time_limit(0);
if (getenv('SERVER_ADMIN'))
{
define('SERVER_ADMIN',getenv('SERVER_ADMIN'));
}
else
{
define('SERVER_ADMIN','root@'.getenv('SERVER_NAME'));
}
class Ftp_Web_Client
{
var $conn,
$cwd,
$max_upload_size,
$mode,
$systype,
$tmp_dir='/tmp';
function Ftp_Web_Client($host,
$user='anonymous',
$pass='$SERVER_ADMIN',
$port=21)
{
$fh=ftp_connect($host, $port);
if (!$fh)
{
user_error("Could not connect to host '$host:$port'");
return FALSE;
}
$logged_in=ftp_login($fh, $user, $pass);
if (!$logged_in)
{
user_error("Could not authenticate to host '$host:$port'.\n");
return FALSE;
}
$this->conn=$fh;
register_shutdown_function(
create_function('', 'ftp_quit($fh);')
);
$this->cwd=ftp_pwd($this->conn);
$this->max_upload_size=1024*1024;
$this->mode=FTP_BINARY;
$this->systype=ftp_systype($this->conn);
}
function cd($dir)
{
$return=ftp_chdir($this->conn, $dir);
if ($return)
{
$this->cwd=ftp_pwd($this->conn);
}
else
{
user_error("Could not cd into directory '$dir'.");
}
return $return;
}
function ls($directory='.')
{
$temp=ftp_rawlist($this->conn, $directory);
if (FALSE===$temp)
{
user_error("This directory listings could not be retrieved.");
return array();
}
switch ($this->systype)
{
case 'Windows_NT':
$re='/^'.
'([0-9-]+\s+'.
'\d\d:\d\d..)\s+'.
'(\S+)\s+'.
'(.+)$/';
break;
case 'UNIX':
default:
$re='/'.
'^(.)'.
'(\S+)\s+'.
'\S+\s+'.
'(\S+)\s+'.
'(\S+)\s+'.
'(\S+)\s+'.
'(\S+\s+\S+\s+\S+\s+)'.
'(.+)$/';
break;
}
$type=array('-'=>'file', 'd'=>'directory');
$listings=array();
foreach ($temp as $entry)
{
$match=preg_match($re, $entry, $matches);
if (!$match)
{
user_error("This directory listings could not be parsed.");
return array();
}
switch ($this->systype)
{
case 'Windows_NT':
$listings[]=array('type'=>is_numeric($matches[2]) ? 'file' : 'directory',
'permissions'=>NULL,
'owner'=>NULL,
'group'=>NULL,
'size'=>(int)$matches[2],
'last mod'=>$matches[1],
'name'=>$matches[3]
);
break;
case 'UNIX':
default:
$listings[]=array('type'=>$type[$matches[1]],
'permissions'=>$matches[2],
'owner'=>$matches[3],
'group'=>$matches[4],
'size'=>$matches[5],
'last mod'=>$matches[6],
'name'=>$matches[7]
);
break;
}
}
return $listings;
}
function get($file)
{
$tmp_name=$this->tmp_dir.'/ftp_web_client_'.md5($file.microtime());
$result=ftp_get($this->conn, $tmp_name, $this->cwd."/$file",$this->mode);
if ($result)
{
header("Content-Type: application/octet-stream");
header("Content-Disposition: inline;'.'filename='.urlencode($file));
readfile($tmp_name);
unlink($tmp_name);
exit();
}
$clean=htmlentities($file);
user_error("Could not download file '$clean'.");
return FALSE;
}
}
$ftp=new Ftp_Web_Client('ftp.wrox.com');
if ('Change to Selected Directory'==$_POST['action'])
{
$ftp->cd($_POST['dir']);
}
else if (isset($_POST['cwd']))
{
$ftp->cd($_POST['cwd']);
}
if ('Download Selected File'==$_POST['action'])
{
if (isset($_POST['selected_file']))
{
$ftp->get($_POST['selected_file']);
}
else
{
user_error("Please select a file to download!");
}
}
$directory=array();
$file=array();
foreach ($ftp->ls($ftp->cwd) as $entry)
{
switch ($entry['type'])
{
case 'directory':
$directory[]=$entry['name'] ;
break;
default:
$file[$entry['name']]=sprintf("%s (%0.2f kb)", $entry['name'], $entry['size']/1024);
break;
}
}
?>
<form action="<?echo (getenv('SCRIPT_NAME'));?>" enctype="multipart/form-data" method="POST">
<input type="hidden" name="cwd" value="<?echo (htmlentities(stripslashes ($ftp->cwd)));?>"/>
<input type="hidden" name="max_file_size" value="<?echo ($ftp->max_file_size);?>"/>
<p><b>Current Working Directory:</b><?echo ($ftp->cwd);?></p>
<p>
<select name="dir">
<?
if ('/'==$ftp->cwd)
{
echo ("<option>/</option>");
}
else
{
echo ("<option value=\"{$ftp->cwd}\"> . ({$ftp->cwd})</option>\n",
"<option value=\"{$ftp->cwd}/..\"> .. </option>\n");
}
foreach ($directory as $name => $entry)
{
printf(
"<option value=\"%s\"">%s</option>'."\n",
"{$ftp->cwd}/$name",
$name
);
}
?>
</select>
<input type="submit" name="action" value="Change to Selected Directory" />
</p>
<p>
<select name="selected_file" size="20">
<?
foreach ($file as $name => $entry)
{
echo("<option value=\"$name\">$entry</option>\n");
}
?>
</select><br />
<input type="submit" name="action" value="Download Selected File" /><be />
</form>
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