2024-10-10

web/admin/problem_changeid.php

@@ -0,0 +1,82 @@
+<?php require("admin-header.php");
+
+if (!(isset($_SESSION[$OJ_NAME.'_'.'administrator']))){
+	echo "<a href='../loginpage.php'>Please Login First!</a>";
+	exit(1);
+}
+function writable($path){
+	$ret=false;
+	$fp=fopen($path."/testifwritable.tst","w");
+	$ret=!($fp===false);
+	fclose($fp);
+	unlink($path."/testifwritable.tst");
+	return $ret;
+}
+?>
+<?php if(isset($_POST['do'])){
+	require_once("../include/check_post_key.php");
+	if (isset($_POST['from'])){
+		$from=intval($_POST['from']);
+		$to=intval($_POST['to']);
+		$row=0;
+		if($result=pdo_query("select 1 from problem where problem_id=?",$to)){
+			$row=count($result);
+			
+		}
+		
+		if($row==0&&rename("$OJ_DATA/$from","$OJ_DATA/$to")){
+			$sql="UPDATE `problem` SET `problem_id`=? WHERE `problem_id`=?";
+			if(pdo_query($sql,$to,$from)==0){
+				 rename("$OJ_DATA/$to","$OJ_DATA/$from");
+				 echo "fail...";
+				 exit(1);
+			}
+			$sql="UPDATE `solution` SET `problem_id`=? WHERE `problem_id`=?";
+			pdo_query($sql,$to,$from);
+			$sql="UPDATE `contest_problem` SET `problem_id`=? WHERE `problem_id`=?";
+			pdo_query($sql,$to,$from);
+			$sql="UPDATE `topic` SET `pid`=? WHERE `pid`=?";
+			pdo_query($sql,$to,$from);
+			
+			$sql="select max(problem_id) from problem";
+			if($result=pdo_query($sql)){
+				$f=$result[0];
+				$nextid=$f[0]+1;
+				$sql="ALTER TABLE problem AUTO_INCREMENT = $nextid";
+				pdo_query($sql);
+			}
+			
+			echo "done!";
+		}else{
+			
+				echo "fail...";
+		}
+
+	}
+}
+
+ $show_form=true;
+   if(!isset($OJ_SAE)||!$OJ_SAE){
+	   if(!writable($OJ_DATA)){
+		   echo " You need to add  $OJ_DATA into your open_basedir setting of php.ini,<br>
+					or you need to execute:<br>
+					   <b>chmod 775 -R $OJ_DATA && chgrp -R www-data $OJ_DATA</b><br>
+					you can't use import function at this time.<br>"; 
+			$show_form=false;
+	   }
+	}	
+	if($show_form){
+?>
+<b>Change ProblemID</b>
+	<ol>
+	<li>Problem
+	<form action='problem_changeid.php' method=post>
+		Move<input type=input name='from'>->
+		<input type=input name='to'>
+		<input type='hidden' name='do' value='do'>
+		<input type=submit value=submit>
+		<?php require_once("../include/set_post_key.php");?>
+	</form>
+	
+<?php }
+?>