/**
* Cache content
*
* Returns feedParser object from cache if present or write it to cache and
* returns result.
*
* @param string $url Feed URL
* @return feedParser
*/
protected function withCache($url)
{
$url_md5 = md5($url);
$cached_file = sprintf('%s/%s/%s/%s/%s.php', $this->cache_dir, $this->cache_file_prefix, substr($url_md5, 0, 2), substr($url_md5, 2, 2), $url_md5);
$may_use_cached = false;
if (@file_exists($cached_file)) {
$may_use_cached = true;
$ts = @filemtime($cached_file);
if ($ts > strtotime($this->cache_ttl)) {
# Direct cache
return unserialize(file_get_contents($cached_file));
}
$this->setValidator('IfModifiedSince', $ts);
}
if (!$this->getFeed($url)) {
if ($may_use_cached) {
# connection failed - fetched from cache
return unserialize(file_get_contents($cached_file));
}
return false;
}
switch ($this->getStatus()) {
case '304':
@files::touch($cached_file);
return unserialize(file_get_contents($cached_file));
case '200':
if ($feed = new feedParser($this->getContent())) {
try {
files::makeDir(dirname($cached_file), true);
} catch (Exception $e) {
return $feed;
}
if ($fp = @fopen($cached_file, 'wb')) {
fwrite($fp, serialize($feed));
fclose($fp);
files::inheritChmod($cached_file);
}
return $feed;
}
}
return false;
}
protected function putContent($content, $target = false)
{
if ($target) {
$r = @file_put_contents($target, $content);
if ($r === false) {
throw new Exception(__('Unable to write destination file.'));
}
files::inheritChmod($target);
return true;
}
return $content;
}
/**
* Upload file by bits
*
* Creates a new file <var>$dest</var> with contents of <var>$bits</var> and
* return the destination file path.
* <var>$dest</var> should be in jail. This method will throw exception
* if file cannot be written.
*
* @param string $bits Destination file content
* @param string $dest Destination file
* @return string Destination real path
*/
public function uploadBits($name, $bits)
{
$dest = $this->pwd . '/' . path::clean($name);
if ($this->isFileExclude($dest)) {
throw new Exception(__('Uploading this file is not allowed.'));
}
if (!$this->inJail(dirname($dest))) {
throw new Exception(__('Destination directory is not in jail.'));
}
if (!is_writable(dirname($dest))) {
throw new Exception(__('Cannot write in this directory.'));
}
$fp = @fopen($dest, 'wb');
if ($fp === false) {
throw new Exception(__('An error occurred while writing the file.'));
}
fwrite($fp, $bits);
fclose($fp);
files::inheritChmod($dest);
return path::real($dest);
}
public function getFile($file)
{
$tpl_file = $this->getFilePath($file);
if (!$tpl_file) {
throw new Exception('No template found for ' . $file);
return false;
}
$file_md5 = md5($tpl_file);
$dest_file = sprintf('%s/%s/%s/%s/%s.php', $this->cache_dir, 'cbtpl', substr($file_md5, 0, 2), substr($file_md5, 2, 2), $file_md5);
clearstatcache();
$stat_f = $stat_d = false;
if (file_exists($dest_file)) {
$stat_f = stat($tpl_file);
$stat_d = stat($dest_file);
}
# We create template if:
# - dest_file doest not exists
# - we don't want cache
# - dest_file size == 0
# - tpl_file is more recent thant dest_file
if (!$stat_d || !$this->use_cache || $stat_d['size'] == 0 || $stat_f['mtime'] > $stat_d['mtime']) {
files::makeDir(dirname($dest_file), true);
if (($fp = @fopen($dest_file, 'wb')) === false) {
throw new Exception('Unable to create cache file');
}
$fc = $this->compileFile($tpl_file);
fwrite($fp, $fc);
fclose($fp);
files::inheritChmod($dest_file);
}
return $dest_file;
}
/**
* Get repository modules list using cache.
*
* @param string $url XML feed URL
* @return array Feed content or False on fail
*/
protected function withCache($url)
{
$url_md5 = md5($url);
$cached_file = sprintf('%s/%s/%s/%s/%s.ser', $this->cache_dir, $this->cache_file_prefix, substr($url_md5, 0, 2), substr($url_md5, 2, 2), $url_md5);
$may_use_cached = false;
# Use cache file ?
if (@file_exists($cached_file) && !$this->force) {
$may_use_cached = true;
$ts = @filemtime($cached_file);
if ($ts > strtotime($this->cache_ttl)) {
# Direct cache
return unserialize(file_get_contents($cached_file));
}
$this->setValidator('IfModifiedSince', $ts);
}
# Query repository
if (!$this->getModulesXML($url)) {
if ($may_use_cached) {
# Touch cache TTL even if query failed ?
if ($this->cache_touch_on_fail) {
@files::touch($cached_file);
}
# Connection failed - fetched from cache
return unserialize(file_get_contents($cached_file));
}
return false;
}
# Parse response
switch ($this->getStatus()) {
# Not modified, use cache
case '304':
@files::touch($cached_file);
return unserialize(file_get_contents($cached_file));
# Ok, parse feed
# Ok, parse feed
case '200':
if ($modules = new dcStoreParser($this->getContent())) {
try {
files::makeDir(dirname($cached_file), true);
} catch (Exception $e) {
return $modules;
}
if ($fp = @fopen($cached_file, 'wb')) {
fwrite($fp, serialize($modules));
fclose($fp);
files::inheritChmod($cached_file);
}
return $modules;
}
}
return false;
}
