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<?php
class ap_download extends ap_manage {
var $overwrite = false;
/**
* Initiate the plugin download
*/
function process() {
global $lang;
$plugin_url = $_REQUEST['url'];
$this->download($plugin_url, $this->overwrite);
return '';
}
/**
* Print results of the download
*/
function html() {
parent::html();
ptln('<div class="pm_info">');
ptln('<h2>'.$this->lang['downloading'].'</h2>');
if ($this->manager->error) {
ptln('<div class="error">'.str_replace("\n","<br />",$this->manager->error).'</div>');
} else if (count($this->downloaded) == 1) {
ptln('<p>'.sprintf($this->lang['downloaded'],$this->downloaded[0]).'</p>');
} else if (count($this->downloaded)) { // more than one plugin in the download
ptln('<p>'.$this->lang['downloads'].'</p>');
ptln('<ul>');
foreach ($this->downloaded as $plugin) {
ptln('<li><div class="li">'.$plugin.'</div></li>',2);
}
ptln('</ul>');
} else { // none found in download
ptln('<p>'.$this->lang['download_none'].'</p>');
}
ptln('</div>');
}
/**
* Process the downloaded file
*/
function download($url, $overwrite=false) {
global $lang;
// check the url
$matches = array();
if (!preg_match("/[^\/]*$/", $url, $matches) || !$matches[0]) {
$this->manager->error = $this->lang['error_badurl']."\n";
return false;
}
$file = $matches[0];
if (!($tmp = io_mktmpdir())) {
$this->manager->error = $this->lang['error_dircreate']."\n";
return false;
}
if (!$file = io_download($url, "$tmp/", true, $file)) {
$this->manager->error = sprintf($this->lang['error_download'],$url)."\n";
}
if (!$this->manager->error && !$this->decompress("$tmp/$file", $tmp)) {
$this->manager->error = sprintf($this->lang['error_decompress'],$file)."\n";
}
// search $tmp for the folder(s) that has been created
// move the folder(s) to lib/plugins/
if (!$this->manager->error) {
if ($dh = @opendir("$tmp/")) {
while (false !== ($f = readdir($dh))) {
if ($f == '.' || $f == '..' || $f == 'tmp') continue;
if (!is_dir("$tmp/$f")) continue;
// check to make sure we aren't overwriting anything
if (!$overwrite && @file_exists(DOKU_PLUGIN.$f)) {
// remember our settings, ask the user to confirm overwrite, FIXME
continue;
}
$instruction = @file_exists(DOKU_PLUGIN.$f) ? 'update' : 'install';
if ($this->dircopy("$tmp/$f", DOKU_PLUGIN.$f)) {
$this->downloaded[] = $f;
$this->plugin_writelog($f, $instruction, array($url));
} else {
$this->manager->error .= sprintf($this->lang['error_copy']."\n", $f);
}
}
closedir($dh);
} else {
$this->manager->error = $this->lang['error']."\n";
}
}
// cleanup
if ($tmp) $this->dir_delete($tmp);
if (!$this->manager->error) {
msg('Plugin package ('.count($this->downloaded).' plugin'.(count($this->downloaded) != 1?'s':'').': '.join(',',$this->downloaded).') successfully installed.',1);
$this->refresh();
return true;
}
return false;
}
/**
* Decompress a given file to the given target directory
*
* Determines the compression type from the file extension
*/
function decompress($file, $target) {
global $conf;
// decompression library doesn't like target folders ending in "/"
if (substr($target, -1) == "/") $target = substr($target, 0, -1);
$ext = $this->guess_archive($file);
if (in_array($ext, array('tar','bz','gz'))) {
require_once(DOKU_INC."inc/TarLib.class.php");
switch($ext){
case 'bz':
$compress_type = COMPRESS_BZIP;
break;
case 'gz':
$compress_type = COMPRESS_GZIP;
break;
default:
$compress_type = COMPRESS_NONE;
}
$tar = new TarLib($file, $compress_type);
if($tar->_initerror < 0){
if($conf['allowdebug']){
msg('TarLib Error: '.$tar->TarErrorStr($tar->_initerror),-1);
}
return false;
}
$ok = $tar->Extract(FULL_ARCHIVE, $target, '', 0777);
if($ok<1){
if($conf['allowdebug']){
msg('TarLib Error: '.$tar->TarErrorStr($ok),-1);
}
return false;
}
return true;
} else if ($ext == 'zip') {
require_once(DOKU_INC."inc/ZipLib.class.php");
$zip = new ZipLib();
$ok = $zip->Extract($file, $target);
// FIXME sort something out for handling zip error messages meaningfully
return ($ok==-1?false:true);
}
// unsupported file type
return false;
}
/**
* Determine the archive type of the given file
*
* Reads the first magic bytes of the given file for content type guessing,
* if neither bz, gz or zip are recognized, tar is assumed.
*
* @author Andreas Gohr <andi@splitbrain.org>
* @returns false if the file can't be read, otherwise an "extension"
*/
function guess_archive($file){
$fh = fopen($file,'rb');
if(!$fh) return false;
$magic = fread($fh,5);
fclose($fh);
if(strpos($magic,"\x42\x5a") === 0) return 'bz';
if(strpos($magic,"\x1f\x8b") === 0) return 'gz';
if(strpos($magic,"\x50\x4b\x03\x04") === 0) return 'zip';
return 'tar';
}
/**
* Copy with recursive sub-directory support
*/
function dircopy($src, $dst) {
global $conf;
if (is_dir($src)) {
if (!$dh = @opendir($src)) return false;
if ($ok = io_mkdir_p($dst)) {
while ($ok && (false !== ($f = readdir($dh)))) {
if ($f == '..' || $f == '.') continue;
$ok = $this->dircopy("$src/$f", "$dst/$f");
}
}
closedir($dh);
return $ok;
} else {
$exists = @file_exists($dst);
if (!@copy($src,$dst)) return false;
if (!$exists && !empty($conf['fperm'])) chmod($dst, $conf['fperm']);
@touch($dst,filemtime($src));
}
return true;
}
}
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