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97 lines
3.2 KiB
97 lines
3.2 KiB
<?php
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/**
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* generates password hash
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*
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* @param string $pw
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* @return string
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*/
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function generate_pw_hash($pw)
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{
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$salt = bin2hex(openssl_random_pseudo_bytes(22));
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$hash = crypt($pw, '$6$rounds=5000$'.$salt.'$');
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return $hash;
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}
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/**
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* checks password comparing it with the hash
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*
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* @param string $pw
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* @param string $hash
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* @return bool
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*/
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function is_pw_correct($pw,$hash)
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{
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if(strlen($hash)==50) // salted sha1 hash with salt
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{
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$salted_hash = substr($hash,0,40);
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$salt = substr($hash,40,10);
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if(sha1($pw.$salt)==$salted_hash) return true;
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else return false;
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}
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elseif(crypt($pw, $hash) == $hash) return true;
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else return false;
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}
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function move_up($item, $section, $table)
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{
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$dbr = Database::$content->prepare("SELECT ".$section.", sequence FROM ".$table." WHERE id=:id LIMIT 1");
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$dbr->bindParam(':id', $item, PDO::PARAM_INT);
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$dbr->execute();
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$data = $dbr->fetch();
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if(isset($data['sequence']))
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{
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if($data['sequence'] > 1)
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{
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Database::$content->beginTransaction();
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$dbr = Database::$content->prepare("UPDATE ".$table." SET sequence=:new_sequence WHERE ".$section."=:section AND sequence=:sequence");
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$dbr->bindParam(':section', $data[$section], PDO::PARAM_STR);
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$dbr->bindValue(':new_sequence', 0, PDO::PARAM_INT);
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$dbr->bindValue(':sequence', $data['sequence']-1, PDO::PARAM_INT);
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$dbr->execute();
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$dbr->bindValue(':new_sequence', $data['sequence']-1, PDO::PARAM_INT);
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$dbr->bindValue(':sequence', $data['sequence'], PDO::PARAM_INT);
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$dbr->execute();
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$dbr->bindValue(':new_sequence', $data['sequence'], PDO::PARAM_INT);
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$dbr->bindValue(':sequence', 0, PDO::PARAM_INT);
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$dbr->execute();
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Database::$content->commit();
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}
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return $data[$section];
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}
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return false;;
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}
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function move_down($item, $section, $table)
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{
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$dbr = Database::$content->prepare("SELECT ".$section.", sequence FROM ".$table." WHERE id=:id LIMIT 1");
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$dbr->bindParam(':id', $item, PDO::PARAM_INT);
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$dbr->execute();
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$data = $dbr->fetch();
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if(isset($data['sequence']))
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{
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$dbr = Database::$content->prepare("SELECT sequence FROM ".$table." WHERE ".$section."=:section ORDER BY sequence DESC LIMIT 1");
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$dbr->bindParam(':section', $data[$section], PDO::PARAM_STR);
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$dbr->execute();
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$last = $dbr->fetchColumn();
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if($data['sequence'] < $last)
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{
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Database::$content->beginTransaction();
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$dbr = Database::$content->prepare("UPDATE ".$table." SET sequence=:new_sequence WHERE ".$section."=:section AND sequence=:sequence");
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$dbr->bindParam(':section', $data[$section], PDO::PARAM_STR);
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$dbr->bindValue(':new_sequence', 0, PDO::PARAM_INT);
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$dbr->bindValue(':sequence', $data['sequence']+1, PDO::PARAM_INT);
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$dbr->execute();
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$dbr->bindValue(':new_sequence', $data['sequence']+1, PDO::PARAM_INT);
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$dbr->bindValue(':sequence', $data['sequence'], PDO::PARAM_INT);
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$dbr->execute();
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$dbr->bindValue(':new_sequence', $data['sequence'], PDO::PARAM_INT);
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$dbr->bindValue(':sequence', 0, PDO::PARAM_INT);
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$dbr->execute();
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Database::$content->commit();
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}
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return $data[$section];
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}
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return false;
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}
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?>
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