Merge pull request #375 from wrongecho/backups

Add automatic database backup functionality

backups/.htaccess

@@ -0,0 +1 @@
+Deny from all

cron.php

@@ -44,7 +44,75 @@ while($row = mysqli_fetch_array($sql_companies)){
 
   if($config_enable_cron == 1){
 
-    // GET Notifications
+    // DATABASE BACKUP
+    $backup_dir = "backups/";
+
+    // Get All Table Names From the Database
+    $tables = array();
+    $sql = "SHOW TABLES";
+    $result = mysqli_query($mysqli, $sql);
+    while ($row = mysqli_fetch_row($result)) {
+      $tables[] = $row[0];
+    }
+
+    $sqlScript = "";
+    foreach ($tables as $table) {
+
+      // Prepare SQLscript for creating table structure
+      $query = "SHOW CREATE TABLE $table";
+      $result = mysqli_query($mysqli, $query);
+      $row = mysqli_fetch_row($result);
+
+      $sqlScript .= "\n\n" . $row[1] . ";\n\n";
+
+      $query = "SELECT * FROM $table";
+      $result = mysqli_query($mysqli, $query);
+
+      $columnCount = mysqli_num_fields($result);
+
+      // Prepare SQLscript for dumping data for each table
+      for ($i = 0; $i < $columnCount; $i ++) {
+        while ($row = mysqli_fetch_row($result)) {
+          $sqlScript .= "INSERT INTO $table VALUES(";
+          for ($j = 0; $j < $columnCount; $j ++) {
+            $row[$j] = $row[$j];
+
+            if (isset($row[$j])) {
+              $sqlScript .= '"' . $row[$j] . '"';
+            } else {
+              $sqlScript .= '""';
+            }
+            if ($j < ($columnCount - 1)) {
+              $sqlScript .= ',';
+            }
+          }
+          $sqlScript .= ");\n";
+        }
+      }
+      $sqlScript .= "\n";
+    }
+
+    // Save the SQL script to a backup file
+    if(!empty($sqlScript)) {
+      $random_string = key32gen();
+      if(!empty($random_string)){
+        $backup_file_name = date('Y-m-d') . '_backup__' . $random_string . '.sql';
+        $fileHandler = fopen($backup_dir . '/' .$backup_file_name, 'w+');
+        $number_of_lines = fwrite($fileHandler, $sqlScript);
+        fclose($fileHandler);
+      }
+    }
+
+    // Delete backups older than 30 days
+    $now = time();
+    foreach (glob($backup_dir."*.sql") as $file) {
+      if(time() - filectime($file) > 2592000){
+        unlink($file);
+      }
+    }
+
+
+    // GET NOTIFICATIONS
 
     // DOMAINS EXPIRING
 
@@ -103,7 +171,7 @@ while($row = mysqli_fetch_array($sql_companies)){
 
     $warranty_alert_array = [1,7,14,30,90,120];
 
-    foreach($$warranty_alert_array as $day){
+    foreach($warranty_alert_array as $day){
 
       //Get Asset Warranty Expiring
       $sql = mysqli_query($mysqli,"SELECT * FROM assets