}
// Caching class
-class mxchange_cache
-{
+class CacheSystem {
// Define variables
- var $update_interval = 0;
var $ret = "init";
- var $cache_path = "";
- var $cache_inc = "";
- var $cache_ctime = 0;
- var $cache_pointer = false;
- var $cache_data = "";
- var $cache_version = "";
+ var $path = "";
+ var $inc = "";
+ var $pointer = false;
+ var $data = "";
+ var $version = "";
+ var $name = "";
+ var $rebuilt = array();
// Constructor
- function mxchange_cache($interval, $path, $tested) {
- // Remember interval in class
- $this->update_interval=$interval;
+ function CacheSystem ($interval, $path, $tested) {
+ // Failed is the default
+ $this->ret = "failed";
// Remeber path
- $this->cache_path=$path;
+ $this->path = $path;
// Check if path exists
if ((is_dir($path)) && (!$tested)) {
// Check if we can create a file inside the path
- @touch($path."dummy.tmp", 'w');
+ touch($path."dummy.tmp", 'w');
if (FILE_READABLE($path."dummy.tmp")) {
// Yes, we can do. So let's remove it
- @unlink($path."dummy.tmp");
+ unlink($path."dummy.tmp");
// Is there a .htaccess file?
if (FILE_READABLE($path.".htaccess")) {
UPDATE_CONFIG("cache_tested", 1);
// All done!
- return "done";
+ $this->ret = "done";
} else {
// Stop! Set a .htaccess file first
- $this->ret="htaccess";
- return "htaccess";
+ $this->ret = "htaccess";
}
}
} elseif ($tested) {
// System already tested
- $this->ret="done";
- return "done";
+ $this->ret = "done";
}
-
- // Something goes wrong here!
- $this->ret="failed";
- return "failed";
}
- function cache_file($file, $ignore_ctime=false) {
- global $INC;
- // Construct FQFN (full qualified file name)
- $inc = $this->cache_path.$file.".cache";
-
- // Rember it + filename in class
- $this->cache_inc = $inc;
-
- // Check if file exists
- $status = (FILE_READABLE($inc) && (is_writeable($inc)));
- if ($status) {
- // Yes, it does. So let's get it's last changed date/time
- $ctime = filectime($inc);
- } else {
- // No, it doesn't. Zero date/time
- $ctime = 0;
- }
+ // Checks validity of cache file and if content is given
+ function loadCacheFile ($file, $forceContent = false) {
+ // Remember cache file
+ $this->name = $file;
- // Remember change date/time in class
- $this->cache_ctime = $ctime;
+ // Construct FQFN (full qualified file name)
+ $this->inc = $this->path.$file.".cache";
- // Is the cache file outdated?
- if (((time() - $ctime) >= $this->update_interval) && (!$ignore_ctime)) {
- // Ok, we need an update!
- $status = false;
- }
+ // Check if file exists and if version matches
+ $status = (FILE_READABLE($this->inc) && (is_writeable($this->inc)) && ($this->extensionVersionMatches("cache")));
// Return status
return $status;
}
- function cache_init($array) {
+ function init () {
// This will destory an existing cache file!
if ($this->ret == "done") {
// Create file
- if (FILE_READABLE($this->cache_inc)) @chmod($this->cache_inc, 0666);
- $fp = @fopen($this->cache_inc, 'w') or mxchange_die("Cannot write to cache ".$this->cache_inc." !");
+ if (FILE_READABLE($this->inc)) chmod($this->inc, 0666);
+ $this->pointer = fopen($this->inc, 'w') or mxchange_die("Cannot write to cache ".$this->inc." !");
- // Begin of cache file
- fwrite($fp, "\$ARRAY = \"".$array."\";\n\n");
+ // Add open PHP tag
+ fwrite($this->pointer, "<?php\n");
- // Remember file pointer
- $this->cache_pointer = $fp;
+ // Add default depency
+ $this->storeExtensionVersion("cache");
} else {
// Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_PROBLEMS_DETECTED);
}
}
- function add_row ($data) {
+ function addRow ($data) {
global $cacheArray;
- if (is_resource($this->cache_pointer)) {
+ if (is_resource($this->pointer)) {
// Write every array element to cache file
foreach ($data as $k => $v) {
// Write global cache array for immediate access
}
// Write cache line to file
- @fwrite($this->cache_pointer, $this->add_raw_row($k, $v));
+ fwrite($this->pointer, $this->rewriteEntry($k, $v));
}
} else {
// Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_PROBLEMS_DETECTED);
}
}
- function cache_close()
- {
+ function finalize () {
// Quit function when no pointer is set
- if (empty($this->cache_pointer)) return;
- if ($this->cache_pointer)
- {
+ if (is_resource($this->pointer)) {
+ // Write footer
+ fwrite($this->pointer, "?>\n");
+
// Close file add destroy handler
- @fclose($this->cache_pointer);
+ fclose($this->pointer);
// Set rights
- if (FILE_READABLE($this->cache_inc)) @chmod($this->cache_inc, 0666);
+ if (FILE_READABLE($this->inc)) chmod($this->inc, 0666);
// Remove pointer
- unset($this->cache_pointer);
- }
- else
- {
- // Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
- }
+ $this->pointer = false;
+ //* DEBUG: */ print __METHOD__."(<font color=\"#0000aa\">".__LINE__."</font>): {$this->name} - FINALIZED!<br />\n";
+ } // END - if
}
- function cache_load() {
+ function getArrayFromCache () {
+ // Is the cache already loaded?
+ if (isset($this->data[$this->name])) {
+ // Return it's content!
+ return $this->data[$this->name];
+ } // END - if
+
// Is the cache file there?
- if (FILE_READABLE($this->cache_inc)) {
+ if (FILE_READABLE($this->inc)) {
// Prepare temporary array
$data = array();
$cache_version = null;
// Load cache file
- $this->cache_data = implode("", file($this->cache_inc));
-
- // Execute cache file
- eval($this->cache_data);
+ require_once($this->inc);
+ // Is there an array?
if (is_array($data)) {
// Cache data
- $this->cache_data = $data;
+ $this->data[$this->name] = $data;
// Cache version found?
- if ((isset($cache_version)) && (is_array($cache_version))) {
+ if ((is_array($cache_version)) && (count($cache_version) > 0)) {
// Remember it as well...
- $this->cache_version = $cache_version;
- } // END - if
+ $this->version[$this->name] = $cache_version;
+ } else {
+ // Invalid cache so destroy it
+ $this->destroyCacheFile();
+
+ // Clear cached data
+ $this->data[$this->name] = array();
+ }
// Return cache
- return $this->cache_data;
+ return $this->data[$this->name];
} else {
// Cache problem detected!
- $this->cache_destroy();
+ $this->destroyCacheFile();
}
} else {
// Cache file not found or not readable
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_LOAD_1.$this->cache_inc.CACHE_CANNOT_LOAD_2);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_CANNOT_LOAD_1.$this->inc.CACHE_CANNOT_LOAD_2);
}
}
- function cache_destroy()
- {
- if (FILE_READABLE($this->cache_inc))
- {
+ // Destroy an existing cache file
+ function destroyCacheFile () {
+ // Is the cache file there?
+ if ((!isset($this->rebuilt[$this->name])) && (FILE_READABLE($this->inc))) {
+ // Close cache
+ $this->finalize();
+
// Remove cache file from system
- @unlink($this->cache_inc);
- if (!FILE_READABLE($this->cache_inc))
- {
- // Close cache automatically (we don't need it anymore!)
- $this->cache_close();
- }
- else
- {
+ //* DEBUG: */ print __METHOD__."(<font color=\"#0000aa\">".__LINE__."</font>): {$this->name} - DESTROYED!<br />\n";
+ unlink($this->inc);
+
+ // Is the file there?
+ if (!FILE_READABLE($this->inc)) {
+ // The cache does no longer exist so kill the content
+ unset($this->data[$this->name]);
+ unset($this->version[$this->name]);
+ $this->rebuilt[$this->name] = true;
+ } else {
// Not removed!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_UNLINK_1.$this->cache_inc.CACHE_CANNOT_UNLINK_2);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_CANNOT_UNLINK_1.$this->inc.CACHE_CANNOT_UNLINK_2);
}
- }
- else
- {
+ } else {
// Does not exist!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_UNLINK_1.$this->cache_inc.CACHE_CANNOT_UNLINK_2);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_PROBLEMS_DETECTED);
}
}
- function cache_remove($search, $data, $array)
- {
- global $ARRAY;
- if ((FILE_READABLE($this->cache_inc)) && (is_writeable($this->cache_inc))) {
+ // Unused method:
+ function removeEntry ($search, $data, $array) {
+ if ((FILE_READABLE($this->inc)) && (is_writeable($this->inc))) {
// Load cache into dummy array
- $dummy = $this->cache_load();
+ $dummy = $this->getArrayFromCache();
// Search for key in array
$key = array_search($data, $dummy[$search]);
foreach ($array as $a) {
// So we can remove all elements as requested
unset($dummy[$a][$key]);
- }
+ } // END - foreach
// Flush array to cache file
- $fp = fopen($this->cache_inc, 'w');
- fwrite($fp, "\$ARRAY = \"".$ARRAY."\";\n");
- foreach ($dummy as $k => $v) {
- if (is_array($v)) {
- // Multi line(s) found
- $LINE = "";
- foreach($v as $k2 => $v2) {
- // Put every array element in a row...
- $LINE .= $this->add_raw_row($k, $v2);
- }
- } else {
- // Single line found
- $LINE = $this->add_raw_row($k, $v);
- }
+ $this->init();
- // Write line(s)
- fwrite($fp, $LINE);
- }
+ // Write array out
+ $this->writeArray($dummy);
// Close cache file
- fclose($fp);
+ $this->finalize();
}
} else {
// Cannot write to cache!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_PROBLEMS_DETECTED);
+ }
+ }
+
+ function writeArray ($array) {
+ if (is_resource($this->pointer)) {
+ foreach ($array as $k => $v) {
+ if (is_array($v)) {
+ // Multi line(s) found
+ $LINE = "";
+ foreach($v as $k2 => $v2) {
+ // Put every array element in a row...
+ $LINE .= $this->rewriteEntry($k, $v2);
+ }
+ } else {
+ // Single line found
+ $LINE = $this->rewriteEntry($k, $v);
+ }
+
+ // Write line(s)
+ fwrite($this->pointer, $LINE);
+ } // END - foreach
+ } else {
+ // Cannot write array!
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_PROBLEMS_DETECTED);
}
}
- function cache_replace($search, $replace, $search_key, $array)
- {
- global $ARRAY;
- if ((FILE_READABLE($this->cache_inc)) && (is_writeable($this->cache_inc)))
- {
+ // Unused method
+ function replaceEntry ($search, $replace, $search_key, $array) {
+ if ((FILE_READABLE($this->inc)) && (is_writeable($this->inc))) {
// Load cache into dummy array
- $dummy = $this->cache_load();
+ $dummy = $this->getArrayFromCache();
// Check if $dummy is valid (prevents some errors)
if ((is_array($dummy)) && (isset($dummy[$search])) && (is_array($dummy[$search]))) {
if ($a == $search) {
// Update now...
$dummy[$a][$search_key] = $replace;
- }
- }
+ } // END - if
+ } // END - foreach
// Flush array to cache file
- $fp = fopen($this->cache_inc, 'w');
- fwrite($fp, "\$dummy = \"".$ARRAY."\";\n");
- foreach ($dummy as $k => $v) {
- if (is_array($v)) {
- // Multi line(s) found
- $LINE = "";
- foreach($v as $k2 => $v2) {
- // Put every array element in a row...
- $LINE .= $this->add_raw_row($k, $v2);
- }
- } else {
- // Single line found
- $LINE = $this->add_raw_row($k, $v);
- }
-
- // Write line(s)
- fwrite($fp, $LINE);
- }
+ $this->init();
+
+ // Write array out
+ $this->writeArray($dummy);
// Close cache file
- fclose($fp);
- }
- }
+ $this->finalize();
+ } // END - if
+ } // END - if
} else {
// Cannot write to cache!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_PROBLEMS_DETECTED);
}
}
- function store_extension_version ($ext_name) {
+ function storeExtensionVersion ($ext_name) {
// Valid cache pointer?
- if (is_resource($this->cache_pointer)) {
+ if (is_resource($this->pointer)) {
// Get extension version
$ext_ver = GET_EXT_VERSION($ext_name);
// Write cache line to file
- @fwrite($this->cache_pointer, "\$cache_version['".$ext_name."'] = \"".$ext_ver."\";\n");
+ fwrite($this->pointer, "\$cache_version['".$ext_name."'] = \"".$ext_ver."\";\n");
+
+ // Add the extension version to object (DO NOT REMOVE IT! Endless loop...)
+ $this->version[$this->name][$ext_name] = $ext_ver;
+ //* DEBUG: */ print __METHOD__."(<font color=\"#0000aa\">".__LINE__."</font>): {$this->name} - {$ext_name}={$ext_ver}<br />\n";
} else {
// Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(<font color=\"#0000aa\">".__LINE__."</font>): ".CACHE_PROBLEMS_DETECTED);
}
}
- function ext_version_matches ($ext_name) {
+ function extensionVersionMatches ($ext_name) {
// Load cache (dummy)
- $this->cache_load();
+ $this->getArrayFromCache();
// Get extension version
$ext_ver = GET_EXT_VERSION($ext_name);
- //* DEBUG: */ echo __METHOD__.": ext_name={$ext_name},ext_ver={$ext_ver},cache_version={$this->cache_version}<br />\n";
+ // Debug messages
+ if (isset($this->version[$this->name][$ext_name])) {
+ //* DEBUG: */ print __METHOD__."(<font color=\"#0000aa\">".__LINE__."</font>): cache={$this->name},ext_name={$ext_name} - {$ext_ver}/{$this->version[$this->name][$ext_name]}<br />\n";
+ } else {
+ // No cache version found!
+ DEBUG_LOG(__METHOD__, __LINE__, "Cache {$this->name} has missing entry for extension {$ext_name}!");
+ }
+
// Compare both
- return ((isset($this->cache_version[$ext_name])) && ($this->cache_version[$ext_name] == $ext_ver));
+ return ((isset($this->version[$this->name][$ext_name])) && ($this->version[$this->name][$ext_name] == $ext_ver));
}
- function add_raw_row ($key, $value) {
+ function rewriteEntry ($key, $value) {
// Init line
$line = "";
if (is_string($value)) {
// String...
$line = "\$data['".$key."'][] = \"".$value."\";\n";
+ } elseif (is_null($value)) {
+ // Null
+ $line = "\$data['".$key."'][] = null;\n";
+ } elseif (is_bool($value)) {
+ // Boolean value
+ if ($value === true) {
+ $line = "\$data['".$key."'][] = true;\n";
+ } else {
+ $line = "\$data['".$key."'][] = false;\n";
+ }
} else {
// Non-string
$line = "\$data['".$key."'][] = ".$value.";\n";
// Return line
return $line;
}
+
+ function getStatus () {
+ return $this->ret;
+ }
+}
+
+// Destroy the cache on extension changes
+function FILTER_CACHE_DESTROY_ON_EXT_CHANGE ($data) {
+ global $cacheInstance;
+
+ // Remove cache
+ if (EXT_IS_ACTIVE("cache")) {
+ if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("extensions")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
+ } // END - if
+
+ // Return it
+ return $DATA;
}
+
+// Destroy the cache on changing admin
+function FILTER_CACHE_DESTROY_ON_ADMIN_CHANGE () {
+ global $cacheInstance;
+
+ // Remove cache
+ if (EXT_IS_ACTIVE("cache")) {
+ if ($cacheInstance->loadCacheFile("admins")) $cacheInstance->destroyCacheFile();
+ } // END - if
+}
+
+// Destroy all cache files
+function FILTER_CACHE_DESTROY_ALL () {
+ global $cacheInstance;
+
+ // Remove cache
+ if (EXT_IS_ACTIVE("cache")) {
+ if ($cacheInstance->loadCacheFile("admins")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("admins_acls")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("extensions")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("refdepths")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("refsystem")) $cacheInstance->destroyCacheFile();
+ if ($cacheInstance->loadCacheFile("themes")) $cacheInstance->destroyCacheFile();
+ } // END - if
+}
+
+// Filter for purging entire admin menu cache
+function FILTER_CACHE_PURGE_ADMIN_MENU () {
+ // Just call the function
+ CACHE_PURGE_ADMIN_MENU();
+}
+
//
?>