fixes #56 and added tool to recalculate all hashes

tools/recreate_hashlist.php

@@ -0,0 +1,24 @@
+<?php 
+define('DS', DIRECTORY_SEPARATOR);
+define('ROOT', dirname(__FILE__).DS.'..');
+
+echo "[i] Starting recreation of hashes.csv\n";
+
+$dir = ROOT.DS.'upload'.DS;
+$dh  = opendir($dir);
+
+$fp = fopen($dir.'hashes.csv','w');
+if(!$fp)
+exit("[X] Can't open hashes.csv to write");
+
+while (false !== ($hash = readdir($dh))) {
+    $img = $dir.$hash.DS.$hash;
+    if(!file_exists($img) || $hash=='.' || $hash=='..') continue;
+    echo "  [s] Calculating $hash\n";
+    $sha1 = sha1_file($img);
+    fwrite($fp,"$sha1;$hash\n");
+}
+
+fclose($fp);
+
+echo "[i] Finished\n";