Debug comments rewritten
[mailer.git] / inc / extensions.php
index 17dbf7d6d4aaf5c3e1a97527f880e2786c57eba1..9d2c0a44184b7fb6932aca4acb3dfab530ec9497 100644 (file)
  ************************************************************************/
 
 // 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);
 }
+
 //
 function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
 {
        global $NOTES, $_CONFIG, $INC_POOL, $cacheInstance;
+
        // We want to register an extension and registration status is by default "failed" (= false)
        $EXT_LOAD_MODE = "register"; $ret = false; $SQLs = array();
        $INC_POOL = array();
@@ -48,6 +49,13 @@ function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
        // This shall never do a non-admin user!
        if (!IS_ADMIN()) return false;
 
+       // By default the language prefix is the extension's name
+       // @TODO: Do we really need this one anymore? Can't we just take $ext_name and done?
+       $EXT_LANG_PREFIX = $ext_name;
+
+       // By default we have no failtures
+       $EXT_REPORTS_FAILURE = false;
+
        // Is this extension already installed?
        if (EXT_IS_ACTIVE($ext_name)) return false;
 
@@ -55,87 +63,100 @@ function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
        $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 
        // Does this extension exists?
-       if (file_exists($file) && is_readable($file))
-       {
+       if (FILE_READABLE($file)) {
                // Extension was found so we can load it in registration mode
+               $EXT_ALWAYS_ACTIVE = "N";
                require($file);
 
                // And run possible updates
                $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = "";
-               foreach ($EXT_VER_HISTORY as $EXT_VER)
-               {
+               foreach ($EXT_VER_HISTORY as $EXT_VER) {
+                       // Load extension in update mode
                        require($file);
-                       if (((GET_EXT_VERSION("sql_patches") != '') && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches")))
-                       {
-                               if (!empty($UPDATE_NOTES))
-                               {
+
+                       // Do we have an update?
+                       if (((GET_EXT_VERSION("sql_patches") != "") && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches"))) {
+                               if (!empty($UPDATE_NOTES)) {
                                        // Update notes found
                                        $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
                                        $UPDATE_NOTES = "";
-                               }
-                                elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0"))
-                               {
+                               } elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0")) {
                                        // Initial release
                                        $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
-                               }
-                                else
-                               {
+                               } else {
+                                       // No update notes found!
                                        $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
                                }
-                       }
-               }
+                       } // END - if
+               } // END - foreach
 
                // Does this extension depends on an outstanding update of another update?
-               if (!empty($EXT_UPDATE_DEPENDS))
-               {
+               if (!empty($EXT_UPDATE_DEPENDS)) {
                        // Backup SQL commands and clear current
-                       $SQLs2 = $SQLs;  $SQLs = array(); $test = false;
-
-                       // Backup language as well
-                       $LANG_BCK = $EXT_LANG_PREFIX; $EXT_ALWAYS_ACTIVE = "N";
+                       $SQLs2 = $SQLs;
+                       $SQLs  = array();
+                       $test  = false;
 
                        // Load required extension also in update mode
                        $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $EXT_UPDATE_DEPENDS);
 
                        // Check for required file
-                       if (file_exists($file) && is_readable($file))
-                       {
-                               // File exists so let's load it
+                       if (FILE_READABLE($file)) {
+                               // Bacup version number
                                $VER_BACKUP = $EXT_VERSION;
+
+                               // Backup language as well
+                               $LANG_BCK = $EXT_LANG_PREFIX;
+
+                               // Save the Parrent $EXT_ALWAYS_ACTIVE for later!
+                               $EXT_ALWAYS_ACTIVE_PARRENT = $EXT_ALWAYS_ACTIVE;
+
+                               // Set EXT_ALWAYS_ACTIVE for update
+                               $EXT_ALWAYS_ACTIVE = "N";
+
+                               // File exists so let's load it
                                require($file);
-                               $EXT_VERSION = $VER_BACKUP;
 
                                // If versions mismatch update extension first
                                $ext_ver = GET_EXT_VERSION($EXT_UPDATE_DEPENDS);
-                               if (empty($ext_ver))
-                               {
+
+                               // Extension version set?
+                               if (empty($ext_ver)) {
                                        // Extension not registered so far so first load task's ID...
                                        $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE task_type='EXTENSION' AND subject LIKE '[%s:]%%' LIMIT 1",
                                         array($EXT_UPDATE_DEPENDS), __FILE__, __LINE__);
-                                       if (SQL_NUMROWS($result) == 1)
-                                       {
+
+                                       // Entry found?
+                                       if (SQL_NUMROWS($result) == 1) {
                                                // Task found so load task's ID and register extension...
                                                list($task) = SQL_FETCHROW($result);
-                                               SQL_FREERESULT($result);
+
+                                               // Try to register the extension
                                                $test = EXTENSION_REGISTER($EXT_UPDATE_DEPENDS, $task, $dry_run);
-                                       }
-                               }
-                                elseif ($ext_ver != $EXT_VERSION)
-                               {
+                                       } // END - if
+
+                                       // Free result
+                                       SQL_FREERESULT($result);
+                               } elseif ($ext_ver != $EXT_VERSION) {
                                        // Ok, update this extension now
                                        EXTENSION_UPDATE(basename($file), $EXT_UPDATE_DEPENDS, $ext_ver, $dry_run);
 
                                        // All okay!
                                        $test = true;
-                               }
-                                else
-                               {
+                               } else {
                                        // Nothing to register / update before...
                                        $test = true;
                                }
-                       }
-                        else
-                       {
+
+                               // Restore version number
+                               $EXT_VERSION = $VER_BACKUP;
+
+                               // Restore language back
+                               $EXT_LANG_PREFIX = $LANG_BCK;
+
+                               // Restore $EXT_ALWAYS_ACTIVE with the value from parrent
+                               $EXT_ALWAYS_ACTIVE = $EXT_ALWAYS_ACTIVE_PARRENT;
+                       } else {
                                // Required file for update does not exists!
                                $test = true;
                                // But this is fine for the first time...
@@ -143,10 +164,7 @@ function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
 
                        // Finally restore previous SQLs
                        $SQLs = $SQLs2; unset($SQLs2);
-                       $EXT_LANG_PREFIX = $LANG_BCK;
-               }
-                else
-               {
+               } else {
                        // Does not depend on an other extension
                        $test = true;
                }
@@ -154,6 +172,9 @@ function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
                // Switch back to register mode
                $EXT_LOAD_MODE = "register";
 
+               // Remains true if extension registration reports no failtures
+               $test = ($test && !$EXT_REPORTS_FAILURE);
+
                // Does everthing before wents ok?
                if ($test) {
                        // "Dry-run-mode" activated?
@@ -191,17 +212,26 @@ function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
                                        foreach ($INC_POOL as $inc) {
                                                require_once($inc);
                                        } // END - foreach
-                               }
+
+                                       // Remove array
+                                       unset($INC_POOL);
+                               } // END - if
 
                                // Register extension
-                               $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_lang_file, ext_active, ext_version) VALUES ('%s', '%s', '%s', '%s')",
+                               $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_lang_file, ext_active, ext_version) VALUES ('%s','%s','%s','%s')",
                                 array($ext_name, $EXT_LANG_PREFIX, $EXT_ALWAYS_ACTIVE, $EXT_VERSION), __FILE__, __LINE__);
 
                                // Update task management
                                ADMIN_SOLVE_TASK($id);
 
+                               // @TODO This causes the whole (!) menu cache being purged
+                               CACHE_PURGE_ADMIN_MENU();
+
                                // In normal mode return a true on success
-                               $ret = true; unset($SQLs);
+                               $ret = true;
+
+                               // Remove SQLs
+                               unset($SQLs);
                        } else {
                                // Rewrite SQL command to keep { and } inside
                                foreach ($SQLs as $key => $sql) {
@@ -238,9 +268,12 @@ function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
 }
 //
 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
-       global $cacheInstance;
+       global $cacheInstance, $_CONFIG;
        $SQLs = array();
 
+       // Extensions are never active by default
+       $EXT_ALWAYS_ACTIVE = "N";
+
        // By default no SQL has been executed
        $sqlRan = false;
 
@@ -252,11 +285,14 @@ function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
        if (empty($ext_name)) return false;
 
        // Load extension in detected mode
-       //* DEBUG: */ echo __FUNCTION__.":ext_name[{$id}]={$ext_name}<br />\n";
+       //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):ext_name[{$id}]={$ext_name}<br />\n";
        $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
-       if (file_exists($file) && is_readable($file)) require($file);
+       if (FILE_READABLE($file)) {
+               // Load the include
+               require($file);
+       } // END - if
 
-       //* DEBUG: */ echo __FUNCTION__.":SQLs::count=".count($SQLs)."<br />\n";
+       //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQLs::count=".count($SQLs)."<br />\n";
        if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
                // Run SQL commands...
                foreach ($SQLs as $sql) {
@@ -266,7 +302,7 @@ function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
                        // Is there still an SQL query?
                        if (!empty($sql)) {
                                // Do we have an "ALTER TABLE" command?
-                               //* DEBUG: */ echo __FUNCTION__.":SQL={$SQL}<br />\n";
+                               //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQL={$SQL}<br />\n";
                                if (substr(strtolower($sql), 0, 11) == "alter table") {
                                        // Analyse the alteration command
                                        SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
@@ -287,16 +323,7 @@ function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
                         array($id), __FILE__, __LINE__);
                } // END - if
 
-               //* DEBUG: */ echo __FUNCTION__.":mode={$EXT_LOAD_MODE}<br />\n";
-
-               // Remove cache file(s) if extension is active
-               if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1) && ($EXT_LOAD_MODE == "remove")) || ($sqlRan === true))) {
-                       //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
-                       // Remove cache files
-                       if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
-                       if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
-                       if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
-               } // END - if
+               //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):mode={$EXT_LOAD_MODE}<br />\n";
 
                // Is this the sql_patches?
                //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
@@ -306,32 +333,39 @@ function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
                        LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
                } // END - if
        } // END - if
+
+       // Remove cache file(s) if extension is active
+       if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1)) || ($sqlRan === true) || ($EXT_LOAD_MODE == "activate") || ($EXT_LOAD_MODE == "deactivate"))) {
+               //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
+               // Remove cache files
+               if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
+               if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
+               if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
+
+               // @TODO This causes the whole (!) menu cache being purged
+               CACHE_PURGE_ADMIN_MENU();
+       } // END - if
 }
 // Check if given extension is active
-function EXT_IS_ACTIVE ($ext_name, $ignore_admin = false, $ignore_cache = false) {
+function EXT_IS_ACTIVE ($ext_name) {
        global $cacheArray, $_CONFIG;
 
        // Extensions are all inactive during installation
        if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
 
-       // Extension's file name will also be checked
-       $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
-       if ((!file_exists($file)) && (!is_readable($file))) return false;
-       //* DEBUG: */ echo "*".$ext_name."(".count($cacheArray).")<br />";
-
        // Not active is the default
        $active = "N";
 
        // Check cache
-       if ((!empty($cacheArray['extensions']['ext_active'][$ext_name])) && (!$ignore_cache)) {
+       if (!empty($cacheArray['extensions']['ext_active'][$ext_name])) {
                // Load from cache
-               //* DEBUG: */ echo "CACHE!<br />\n";
+               //* DEBUG: */ echo "CACHE! ext_name={$ext_name}<br />\n";
                $active = $cacheArray['extensions']['ext_active'][$ext_name];
 
                // Count cache hits
                if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
        } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
-               //* DEBUG: */ echo "DB!<br />\n";
+               //* DEBUG: */ echo "DB! ext_name={$ext_name}<br />\n";
                // Load from database
                $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
                 array($ext_name), __FILE__, __LINE__);
@@ -339,11 +373,16 @@ function EXT_IS_ACTIVE ($ext_name, $ignore_admin = false, $ignore_cache = false)
                        // Extension was not found!
                        return false;
                }
+
+               // Load entry
                list($active) = SQL_FETCHROW($result);
-               //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
+
+               // Free result
                SQL_FREERESULT($result);
 
+
                // Write cache array
+               //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
                $cacheArray['extensions']['ext_active'][$ext_name] = $active;
        } else {
                // Extension not active!
@@ -351,22 +390,11 @@ function EXT_IS_ACTIVE ($ext_name, $ignore_admin = false, $ignore_cache = false)
                $cacheArray['extensions']['ext_active'][$ext_name] = "N";
        }
 
-       // Create FQFN for extension file
-       $inc = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
-
        // Debug message
-       //DEBUG_LOG(__FUNCTION__.": ext_name={$ext_name},active={$active}");
+       //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, " ext_name={$ext_name},active={$active}");
 
        // Is this extension activated? (For admins we always have active extensions...)
-       return (
-               (
-                       $active == "Y"
-               ) && (
-                       file_exists($inc)
-               ) && (
-                       is_readable($inc)
-               )
-       );
+       return ($active == "Y");
 }
 // Get version from extensions
 function GET_EXT_VERSION ($ext_name) {
@@ -375,12 +403,12 @@ function GET_EXT_VERSION ($ext_name) {
 
        // Extensions are all inactive during installation
        if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
-       //* DEBUG: */ echo __FUNCTION__.": ext_name={$ext_name}<br />\n";
+       //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ext_name={$ext_name}<br />\n";
 
        // Is the cache written?
        if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
                // Load data from cache
-               //* DEBUG: */ echo __FUNCTION__.": CACHE!<br />\n";
+               //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): CACHE!<br />\n";
                $ret = $cacheArray['extensions']['ext_version'][$ext_name];
 
                // Count cache hits
@@ -397,21 +425,28 @@ function GET_EXT_VERSION ($ext_name) {
        }
 
        // Return result
-       //* DEBUG: */ echo __FUNCTION__.": ret={$ret}<br />\n";
+       //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ret={$ret}<br />\n";
        return $ret;
 }
 //
 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
 {
        // This shall never do a non-admin user!
-       global $cacheInstance, $_CONFIG, $NOTES; $SQLs = array();
+       global $cacheInstance, $_CONFIG, $NOTES;
+
+       // Init arrays
+       $SQLs = array(); $INC_POOL = array();
+
+       // Only admins are allowed to update extensions
        if ((!IS_ADMIN()) || (empty($ext))) return false;
 
        // Load extension in update mode
        $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
-       include(PATH."inc/extensions/".$file);
-       if (!empty($EXT_UPDATE_DEPENDS))
-       {
+
+       // Load extension file
+       include(sprintf("%sinc/extensions/%s", PATH, $file));
+
+       if (!empty($EXT_UPDATE_DEPENDS)) {
                // Update another extension first!
                $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
        }
@@ -456,9 +491,16 @@ function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
                                }
                        }
 
+                       // In real-mode execute any existing includes
+                       if ((!$dry_run) && (count($INC_POOL) > 0)) {
+                               // Include all files
+                               foreach ($INC_POOL as $fqfn) {
+                                       require_once($fqfn);
+                               } // END - foreach
+                       } // END - if
+
                        // Run SQLs
-                       if ((is_array($SQLs)) && (!$dry_run))
-                       {
+                       if ((is_array($SQLs)) && (!$dry_run)) {
                                // Run SQL commands
                                foreach ($SQLs as $sql)
                                {
@@ -514,7 +556,7 @@ function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL,
 
        $S = false; $SW = 2; $i = 1;
        $OUT = "";
-       if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
+       if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
                $OUT  = "<DIV align=\"center\">
 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
 <TR>
@@ -538,7 +580,7 @@ function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL,
                }
        }
 
-       if ((!$S) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
+       if ((!$S) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
                // No addional SQL commands to run
                $OUT .= "<TR>
   <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
@@ -565,7 +607,7 @@ function GET_EXT_NAME ($id) {
                $ret = $cacheArray['extensions']['ext_name'][$id];
 
                // Count cache hits
-               $_CONFIG['cache_hits']++;
+               if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
        } elseif (!EXT_IS_ACTIVE("cache")) {
                // Load from database
                $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
@@ -584,7 +626,7 @@ function GET_EXT_ID($name) {
                $ret = $cacheArray['extensions']['ext_id'][$name];
 
                // Count cache hits
-               $_CONFIG['cache_hits']++;
+               if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
        } elseif (!EXT_IS_ACTIVE("cache")) {
                // Load from database
                $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
@@ -596,5 +638,30 @@ function GET_EXT_ID($name) {
        // Return value
        return $ret;
 }
+// Activate given extension
+function ACTIVATE_EXTENSION($ext_name) {
+       // Activate the extension
+       $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_active='Y' WHERE ext_name='%s' LIMIT 1",
+               array($ext_name), __FILE__, __LINE__);
+
+       // Extension has been activated?
+       if (SQL_AFFECTEDROWS() == 1) {
+               // Then run all queries
+               EXTENSION_RUN_SQLS(GET_EXT_ID($ext_name), "activate");
+       } // END - if
+}
+// Checks wether the extension is older than given
+function EXT_VERSION_IS_OLDER ($ext_name, $ext_ver) {
+       // Get current extension version
+       $currVersion = GET_EXT_VERSION($ext_name);
+
+       // Remove all dots from both versions
+       $currVersion = str_replace(".", "", $currVersion);
+       $ext_ver = str_replace(".", "", $ext_ver);
+
+       // Now compare both and return the result
+       return ($currVersion < $ext_ver);
+}
+
 //
 ?>