function GetAllFilesInSubfolders($dirname)
{
$AllFiles = array();
$dirname = rtrim(realpath($dirname), '/\\');
if ($dirhandle = @opendir($dirname)) {
while (($file = readdir($dirhandle)) !== false) {
$fullfilename = $dirname . DIRECTORY_SEPARATOR . $file;
if (is_file($fullfilename)) {
$AllFiles[] = $fullfilename;
} elseif (is_dir($fullfilename)) {
switch ($file) {
case '.':
case '..':
break;
default:
$AllFiles[] = $fullfilename;
$subfiles = phpthumb_functions::GetAllFilesInSubfolders($fullfilename);
foreach ($subfiles as $filename) {
$AllFiles[] = $filename;
}
break;
}
} else {
// ignore?
}
}
closedir($dirhandle);
}
sort($AllFiles);
return array_unique($AllFiles);
}
function CleanUpCacheDirectory()
{
$this->DebugMessage('CleanUpCacheDirectory() set to purge (' . (is_null($this->config_cache_maxage) ? 'NULL' : number_format($this->config_cache_maxage / 86400, 1)) . ' days; ' . (is_null($this->config_cache_maxsize) ? 'NULL' : number_format($this->config_cache_maxsize / 1048576, 2)) . ' MB; ' . (is_null($this->config_cache_maxfiles) ? 'NULL' : number_format($this->config_cache_maxfiles)) . ' files)', __FILE__, __LINE__);
if (!is_writable($this->config_cache_directory)) {
$this->DebugMessage('CleanUpCacheDirectory() skipped because "' . $this->config_cache_directory . '" is not writable', __FILE__, __LINE__);
return true;
}
// cache status of cache directory for 1 hour to avoid hammering the filesystem functions
$phpThumbCacheStats_filename = $this->config_cache_directory . DIRECTORY_SEPARATOR . 'phpThumbCacheStats.txt';
if (file_exists($phpThumbCacheStats_filename) && is_readable($phpThumbCacheStats_filename) && filemtime($phpThumbCacheStats_filename) >= time() - 3600) {
$this->DebugMessage('CleanUpCacheDirectory() skipped because "' . $phpThumbCacheStats_filename . '" is recently modified', __FILE__, __LINE__);
return true;
}
touch($phpThumbCacheStats_filename);
$DeletedKeys = array();
$AllFilesInCacheDirectory = array();
if ($this->config_cache_maxage > 0 || $this->config_cache_maxsize > 0 || $this->config_cache_maxfiles > 0) {
$CacheDirOldFilesAge = array();
$CacheDirOldFilesSize = array();
$AllFilesInCacheDirectory = phpthumb_functions::GetAllFilesInSubfolders($this->config_cache_directory);
foreach ($AllFilesInCacheDirectory as $fullfilename) {
if (preg_match('#' . preg_quote($this->config_cache_prefix) . '#i', $fullfilename) && file_exists($fullfilename)) {
$CacheDirOldFilesAge[$fullfilename] = @fileatime($fullfilename);
if ($CacheDirOldFilesAge[$fullfilename] == 0) {
$CacheDirOldFilesAge[$fullfilename] = @filemtime($fullfilename);
}
$CacheDirOldFilesSize[$fullfilename] = @filesize($fullfilename);
}
}
if (empty($CacheDirOldFilesSize)) {
return true;
}
$DeletedKeys['zerobyte'] = array();
foreach ($CacheDirOldFilesSize as $fullfilename => $filesize) {
// purge all zero-size files more than an hour old (to prevent trying to delete just-created and/or in-use files)
$cutofftime = time() - 3600;
if ($filesize == 0 && $CacheDirOldFilesAge[$fullfilename] < $cutofftime) {
$this->DebugMessage('deleting "' . $fullfilename . '"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$DeletedKeys['zerobyte'][] = $fullfilename;
unset($CacheDirOldFilesSize[$fullfilename]);
unset($CacheDirOldFilesAge[$fullfilename]);
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['zerobyte']) . ' zero-byte files', __FILE__, __LINE__);
asort($CacheDirOldFilesAge);
if ($this->config_cache_maxfiles > 0) {
$TotalCachedFiles = count($CacheDirOldFilesAge);
$DeletedKeys['maxfiles'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFiles > $this->config_cache_maxfiles) {
$this->DebugMessage('deleting "' . $fullfilename . '"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$TotalCachedFiles--;
$DeletedKeys['maxfiles'][] = $fullfilename;
}
} else {
// there are few enough files to keep the rest
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['maxfiles']) . ' files based on (config_cache_maxfiles=' . $this->config_cache_maxfiles . ')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxfiles'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxage > 0) {
$mindate = time() - $this->config_cache_maxage;
$DeletedKeys['maxage'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($filedate > 0) {
if ($filedate < $mindate) {
$this->DebugMessage('deleting "' . $fullfilename . '"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$DeletedKeys['maxage'][] = $fullfilename;
}
} else {
// the rest of the files are new enough to keep
break;
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['maxage']) . ' files based on (config_cache_maxage=' . $this->config_cache_maxage . ')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxage'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxsize > 0) {
$TotalCachedFileSize = array_sum($CacheDirOldFilesSize);
$DeletedKeys['maxsize'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFileSize > $this->config_cache_maxsize) {
$this->DebugMessage('deleting "' . $fullfilename . '"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$TotalCachedFileSize -= $CacheDirOldFilesSize[$fullfilename];
$DeletedKeys['maxsize'][] = $fullfilename;
}
} else {
// the total filesizes are small enough to keep the rest of the files
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['maxsize']) . ' files based on (config_cache_maxsize=' . $this->config_cache_maxsize . ')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxsize'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
} else {
$this->DebugMessage('skipping CleanUpCacheDirectory() because config set to not use it', __FILE__, __LINE__);
}
$totalpurged = 0;
foreach ($DeletedKeys as $key => $value) {
$totalpurged += count($value);
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . $totalpurged . ' files (from ' . count($AllFilesInCacheDirectory) . ') based on config settings', __FILE__, __LINE__);
if ($totalpurged > 0) {
$empty_dirs = array();
foreach ($AllFilesInCacheDirectory as $fullfilename) {
if (is_dir($fullfilename)) {
$empty_dirs[realpath($fullfilename)] = 1;
} else {
unset($empty_dirs[realpath(dirname($fullfilename))]);
}
}
krsort($empty_dirs);
$totalpurgeddirs = 0;
foreach ($empty_dirs as $empty_dir => $dummy) {
if ($empty_dir == $this->config_cache_directory) {
// shouldn't happen, but just in case, don't let it delete actual cache directory
continue;
} elseif (@rmdir($empty_dir)) {
$totalpurgeddirs++;
} else {
$this->DebugMessage('failed to rmdir(' . $empty_dir . ')', __FILE__, __LINE__);
}
}
$this->DebugMessage('purged ' . $totalpurgeddirs . ' empty directories', __FILE__, __LINE__);
}
return true;
}
function GetAllFilesInSubfolders($dirname)
{
$AllFiles = array();
$dirname = rtrim(realpath($dirname), '/\\');
if ($dirhandle = @opendir($dirname)) {
while ($file = readdir($dirhandle)) {
$fullfilename = $dirname . DIRECTORY_SEPARATOR . $file;
if (is_file($fullfilename)) {
$AllFiles[] = $fullfilename;
} elseif (is_dir($fullfilename)) {
if ($file == '.' || $file == '..') {
continue;
}
$subfiles = phpthumb_functions::GetAllFilesInSubfolders($fullfilename);
foreach ($subfiles as $filename) {
$AllFiles[] = $filename;
}
} else {
// ignore?
}
}
closedir($dirhandle);
}
sort($AllFiles);
return array_unique($AllFiles);
}
function CleanUpCacheDirectory()
{
$this->DebugMessage('skipping CleanUpCacheDirectory() set to purge (' . number_format($this->config_cache_maxage / 86400, 1) . ' days; ' . number_format($this->config_cache_maxsize / 1048576, 2) . 'MB; ' . number_format($this->config_cache_maxfiles) . ' files)', __FILE__, __LINE__);
$DeletedKeys = array();
$AllFilesInCacheDirectory = array();
if ($this->config_cache_maxage > 0 || $this->config_cache_maxsize > 0 || $this->config_cache_maxfiles > 0) {
$CacheDirOldFilesAge = array();
$CacheDirOldFilesSize = array();
$AllFilesInCacheDirectory = phpthumb_functions::GetAllFilesInSubfolders($this->config_cache_directory);
foreach ($AllFilesInCacheDirectory as $fullfilename) {
if (preg_match('/^phpThumb\\_cache\\_/i', basename($fullfilename)) && file_exists($fullfilename)) {
$CacheDirOldFilesAge[$fullfilename] = @fileatime($fullfilename);
if ($CacheDirOldFilesAge[$fullfilename] == 0) {
$CacheDirOldFilesAge[$fullfilename] = @filemtime($fullfilename);
}
$CacheDirOldFilesSize[$fullfilename] = @filesize($fullfilename);
}
}
if (empty($CacheDirOldFilesSize)) {
return true;
}
$DeletedKeys['zerobyte'] = array();
foreach ($CacheDirOldFilesSize as $fullfilename => $filesize) {
// purge all zero-size files more than an hour old (to prevent trying to delete just-created and/or in-use files)
$cutofftime = time() - 3600;
if ($filesize == 0 && $CacheDirOldFilesAge[$fullfilename] < $cutofftime) {
if (@unlink($fullfilename)) {
$DeletedKeys['zerobyte'][] = $fullfilename;
unset($CacheDirOldFilesSize[$fullfilename]);
unset($CacheDirOldFilesAge[$fullfilename]);
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['zerobyte']) . ' zero-byte files', __FILE__, __LINE__);
asort($CacheDirOldFilesAge);
if ($this->config_cache_maxfiles > 0) {
$TotalCachedFiles = count($CacheDirOldFilesAge);
$DeletedKeys['maxfiles'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFiles > $this->config_cache_maxfiles) {
if (@unlink($fullfilename)) {
$TotalCachedFiles--;
$DeletedKeys['maxfiles'][] = $fullfilename;
}
} else {
// there are few enough files to keep the rest
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['maxfiles']) . ' files based on (config_cache_maxfiles=' . $this->config_cache_maxfiles . ')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxfiles'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxage > 0) {
$mindate = time() - $this->config_cache_maxage;
$DeletedKeys['maxage'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($filedate > 0) {
if ($filedate < $mindate) {
if (@unlink($fullfilename)) {
$DeletedKeys['maxage'][] = $fullfilename;
}
} else {
// the rest of the files are new enough to keep
break;
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['maxage']) . ' files based on (config_cache_maxage=' . $this->config_cache_maxage . ')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxage'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxsize > 0) {
$TotalCachedFileSize = array_sum($CacheDirOldFilesSize);
$DeletedKeys['maxsize'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFileSize > $this->config_cache_maxsize) {
if (@unlink($fullfilename)) {
$TotalCachedFileSize -= $CacheDirOldFilesSize[$fullfilename];
$DeletedKeys['maxsize'][] = $fullfilename;
}
} else {
// the total filesizes are small enough to keep the rest of the files
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys['maxsize']) . ' files based on (config_cache_maxsize=' . $this->config_cache_maxsize . ')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxsize'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
} else {
$this->DebugMessage('skipping CleanUpCacheDirectory() because config set to not use it', __FILE__, __LINE__);
}
$totalpurged = 0;
foreach ($DeletedKeys as $key => $value) {
$totalpurged += count($value);
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . $totalpurged . ' files (from ' . count($AllFilesInCacheDirectory) . ') based on config settings', __FILE__, __LINE__);
if ($totalpurged > 0) {
$empty_dirs = array();
foreach ($AllFilesInCacheDirectory as $fullfilename) {
if (is_dir($fullfilename)) {
$empty_dirs[realpath($fullfilename)] = 1;
} else {
unset($empty_dirs[realpath(dirname($fullfilename))]);
}
}
krsort($empty_dirs);
$totalpurgeddirs = 0;
foreach ($empty_dirs as $empty_dir => $dummy) {
if ($empty_dir == $this->config_cache_directory) {
// shouldn't happen, but just in case, don't let it delete actual cache directory
continue;
} elseif (@rmdir($empty_dir)) {
$totalpurgeddirs++;
} else {
$this->DebugMessage('failed to rmdir(' . $empty_dir . ')', __FILE__, __LINE__);
}
}
$this->DebugMessage('purged ' . $totalpurgeddirs . ' empty directories', __FILE__, __LINE__);
}
return true;
}
function CleanUpCacheDirectory()
{
if ($this->config_cache_maxage > 0 || $this->config_cache_maxsize > 0 || $this->config_cache_maxfiles > 0) {
$CacheDirOldFilesAge = array();
$CacheDirOldFilesSize = array();
$AllFilesInCacheDirectory = phpthumb_functions::GetAllFilesInSubfolders($this->config_cache_directory);
foreach ($AllFilesInCacheDirectory as $fullfilename) {
if (eregi('^phpThumb_cache_', $fullfilename) && file_exists($fullfilename)) {
$CacheDirOldFilesAge[$fullfilename] = @fileatime($fullfilename);
if ($CacheDirOldFilesAge[$fullfilename] == 0) {
$CacheDirOldFilesAge[$fullfilename] = @filemtime($fullfilename);
}
$CacheDirOldFilesSize[$fullfilename] = @filesize($fullfilename);
}
}
if (empty($CacheDirOldFilesSize)) {
return true;
}
$DeletedKeys = array();
foreach ($CacheDirOldFilesSize as $fullfilename => $filesize) {
// purge all zero-size files more than an hour old (to prevent trying to delete just-created and/or in-use files)
$cutofftime = time() - 3600;
if ($filesize == 0 && $CacheDirOldFilesAge[$fullfilename] < $cutofftime) {
if (@unlink($fullfilename)) {
$DeletedKeys[] = $fullfilename;
unset($CacheDirOldFilesSize[$fullfilename]);
unset($CacheDirOldFilesAge[$fullfilename]);
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys) . ' zero-byte files', __FILE__, __LINE__);
asort($CacheDirOldFilesAge);
if ($this->config_cache_maxfiles > 0) {
$TotalCachedFiles = count($CacheDirOldFilesAge);
$DeletedKeys = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFiles > $this->config_cache_maxfiles) {
if (@unlink($fullfilename)) {
$TotalCachedFiles--;
$DeletedKeys[] = $fullfilename;
}
} else {
// there are few enough files to keep the rest
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys) . ' files based on (config_cache_maxfiles=' . $this->config_cache_maxfiles . ')', __FILE__, __LINE__);
foreach ($DeletedKeys as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxage > 0) {
$mindate = time() - $this->config_cache_maxage;
$DeletedKeys = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($filedate > 0) {
if ($filedate < $mindate) {
if (@unlink($fullfilename)) {
$DeletedKeys[] = $fullfilename;
}
} else {
// the rest of the files are new enough to keep
break;
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys) . ' files based on (config_cache_maxage=' . $this->config_cache_maxage . ')', __FILE__, __LINE__);
foreach ($DeletedKeys as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxsize > 0) {
$TotalCachedFileSize = array_sum($CacheDirOldFilesSize);
$DeletedKeys = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFileSize > $this->config_cache_maxsize) {
if (@unlink($fullfilename)) {
$TotalCachedFileSize -= $CacheDirOldFilesSize[$fullfilename];
$DeletedKeys[] = $fullfilename;
}
} else {
// the total filesizes are small enough to keep the rest of the files
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged ' . count($DeletedKeys) . ' files based on (config_cache_maxsize=' . $this->config_cache_maxsize . ')', __FILE__, __LINE__);
foreach ($DeletedKeys as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
} else {
$this->DebugMessage('skipping CleanUpCacheDirectory() because config set to not use it', __FILE__, __LINE__);
}
return true;
}