X-Git-Url: https://git.mxchange.org/?p=mailer.git;a=blobdiff_plain;f=inc%2Flibs%2Fcache_functions.php;h=611073a72ae89cba3603f1129bd3f217afc0c64b;hp=e0c3fec20cd0b42090b05bc01ce33b78f94ffb07;hb=6586600d8020147192e5f28ca2a3a0153f774d3c;hpb=80e2def8ef2125fd4d7d1312ee3993ab613f0846
diff --git a/inc/libs/cache_functions.php b/inc/libs/cache_functions.php
index e0c3fec20c..611073a72a 100644
--- a/inc/libs/cache_functions.php
+++ b/inc/libs/cache_functions.php
@@ -32,37 +32,37 @@
************************************************************************/
// Some security stuff...
-if (ereg(basename(__FILE__), $_SERVER['PHP_SELF']))
-{
+if (!defined('__SECURITY')) {
$INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
require($INC);
}
+
// 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 $path = "";
+ var $inc = "";
+ var $pointer = false;
+ var $data = "";
+ var $version = "";
+ var $name = "";
// Constructor
- function mxchange_cache($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")) {
@@ -70,77 +70,55 @@ class mxchange_cache
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";
+ // Checks validity of cache file and if content is given
+ function loadCacheFile ($file, $forceContent = false) {
+ // Remember cache file
+ $this->name = $file;
- // 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";
- }
-
- // 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, "cache_pointer = $fp;
+ // Add default depency
+ $this->storeExtensionVersion("cache");
} else {
// Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
}
}
- function add_row ($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 => $v) {
// Write global cache array for immediate access
@@ -153,206 +131,254 @@ class mxchange_cache
if (($k == "ext_keep") && ($v == "Y")) {
$cacheArray['active_extensions'][$data['ext_name']] = $v;
} // END - if
- } // END - if
+ } elseif (is_array($v)) {
+ // Serialize and BASE64-encode the array
+ $v = base64_encode(serialize($v));
+ }
// Write cache line to file
- @fwrite($this->cache_pointer, "\$data['".$k."'][] = \"".$v."\";\n");
+ fwrite($this->pointer, $this->rewriteEntry($k, $v));
}
} else {
// Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
}
}
- function cache_close()
- {
+ function finalize () {
// Quit function when no pointer is set
- if (empty($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
- {
+ $this->pointer = false;
+ } else {
// Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
}
}
- function cache_load()
- {
- if (FILE_READABLE($this->cache_inc)) {
+ 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->inc)) {
// Prepare temporary array
$data = array();
+ $cache_version = null;
// Load cache file
- $cache = implode("", file($this->cache_inc));
+ require_once($this->inc);
- // Execute cache file
- eval($cache);
+ // Is there an array?
if (is_array($data)) {
+ // Cache data
+ $this->data[$this->name] = $data;
+
+ // Cache version found?
+ if ((is_array($cache_version)) && (count($cache_version) > 0)) {
+ // Remember it as well...
+ $this->version[$this->name] = $cache_version;
+ } else {
+ // Invalid cache so destroy it
+ $this->destroyCacheFile();
+
+ // Clear cached data
+ $this->data[$this->name] = array();
+ }
+
// Return cache
- return $data;
+ return $this->data[$this->name];
} else {
// Cache problem detected!
- $this->cache_destroy();
+ $this->destroyCacheFile();
}
- }
- else
- {
+ } else {
// Cache file not found or not readable
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_LOAD_1.$this->cache_inc.CACHE_CANNOT_LOAD_2);
+ ADD_FATAL(__FILE__."(".__LINE__."): ".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 (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!)
- $this->cache_close();
- }
- else
- {
+ unlink($this->inc);
+
+ // Is the file there?
+ if (!FILE_READABLE($this->inc)) {
+ // The cache does no longer exist so kill the content
+ unset($this->data[$this->name]);
+ } else {
// Not removed!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_UNLINK_1.$this->cache_inc.CACHE_CANNOT_UNLINK_2);
+ ADD_FATAL(__FILE__."(".__LINE__."): ".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__."(".__LINE__."): ".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]);
- if (!empty($key))
- {
+ if (!empty($key)) {
// Key (hopefully) found?
- foreach ($array as $a)
- {
+ foreach ($array as $a) {
// So we can remove all elements as requested
unset($dummy[$a][$key]);
}
// 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...
- $LINE .= "\$data['".$k."'][] = \"".$v2."\";\n";
- }
- }
- else
- {
- // Single line found
- $LINE = "\$data['".$k."'] = \"".$v."\";\n";
- }
+ $this->init();
- // Write line(s)
- fwrite($fp, $LINE);
- }
+ // Write array out
+ $this->writeArray($dummy);
// Close cache file
- fclose($fp);
+ $this->finalize();
}
- }
- else
- {
+ } else {
// Cannot write to cache!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
}
}
- function cache_replace($search, $replace, $search_key, $array)
- {
- global $ARRAY;
- if ((FILE_READABLE($this->cache_inc)) && (is_writeable($this->cache_inc)))
- {
+ function writeArray ($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, $LINE);
+ } // END - foreach
+ } else {
+ // Cannot write array!
+ ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ }
+ }
+
+ // Unused method
+ function replaceEntry ($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 ((is_array($dummy)) && (isset($dummy[$search])) && (is_array($dummy[$search]))) {
// Search for key in array
$key_found = array_key_exists($search_key, $dummy[$search]);
- if ($key_found == true)
- {
+ if ($key_found == true) {
$key = $search_key;
// Key (hopefully) found?
- foreach ($dummy as $a => $v)
- {
+ foreach ($dummy as $a => $v) {
// So we can update all entries
- if ($a == $search)
- {
+ if ($a == $search) {
// Update now...
$dummy[$a][$search_key] = $replace;
}
}
// 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...
- $LINE .= "\$data['".$k."'][] = \"".$v2."\";\n";
- }
- }
- else
- {
- // Single line found
- $LINE = "\$data['".$k."'] = \"".$v."\";\n";
- }
+ $this->init();
- // Write line(s)
- fwrite($fp, $LINE);
- }
+ // Write array out
+ $this->writeArray($dummy);
// Close cache file
- fclose($fp);
+ $this->finalize();
}
}
- }
- else
- {
+ } else {
// Cannot write to cache!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ }
+ }
+
+ function storeExtensionVersion ($ext_name) {
+ // Valid cache pointer?
+ if (is_resource($this->pointer)) {
+ // Get extension version
+ $ext_ver = GET_EXT_VERSION($ext_name);
+
+ // Write cache line to file
+ fwrite($this->pointer, "\$cache_version['".$ext_name."'] = \"".$ext_ver."\";\n");
+ } else {
+ // Cannot create file
+ ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
+ }
+ }
+
+ function extensionVersionMatches ($ext_name) {
+ // Load cache (dummy)
+ $this->getArrayFromCache();
+
+ // Get extension version
+ $ext_ver = GET_EXT_VERSION($ext_name);
+
+ // Compare both
+ return ((isset($this->version[$this->name][$ext_name])) && ($this->version[$this->name][$ext_name] == $ext_ver));
+ }
+
+ function rewriteEntry ($key, $value) {
+ // Init line
+ $line = "";
+
+ // String or non-string? ;-)
+ if (is_string($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;
}
}
//