From f21c33d69c90cda9d76261930d4c4aa0d42d25c8 Mon Sep 17 00:00:00 2001
From: smshine <smshine@qq.com>
Date: Sat, 7 Feb 2026 15:45:07 +0800
Subject: [PATCH] add debug info for ojfeeder.php

---
 ojfeeder.php | 35 +++++++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/ojfeeder.php b/ojfeeder.php
index 31e4554..926036e 100644
--- a/ojfeeder.php
+++ b/ojfeeder.php
@@ -8,6 +8,13 @@ require_once('lib.php');
 @session_unset();
 @session_destroy();
 
+function ojfeeder_log($message) {
+    global $CFG;
+    if (!empty($CFG->debug)) {
+        error_log('[ojfeeder] ' . $message);
+    }
+}
+
 function get_judge_id($xmlrpcmsg) {
     $ip = explode('.', getremoteaddr()); 
     $id = ($ip[0] << 24) | ($ip[1] << 16) | ($ip[2] << 8) | $ip[3];
@@ -188,11 +195,24 @@ function get_tests($xmlrpcmsg)
 
     $tests = array();
     $rs = $DB->get_records('programming_tests', array('programmingid'=> $id));
+    ojfeeder_log("get_tests problem_id={$id} full=" . ($full ? 1 : 0) . " count=" . (is_array($rs) ? count($rs) : 0));
     if (!empty($rs)) {
         foreach ($rs as $rid => $r) {
             if ($full) {
-                if (!empty($r->gzinput)) $r->input = bzdecompress($r->gzinput);
-                if (!empty($r->gzoutput)) $r->output = bzdecompress($r->gzoutput);
+                if (!empty($r->gzinput)) {
+                    $input = bzdecompress($r->gzinput);
+                    if ($input === false) {
+                        ojfeeder_log("get_tests bzdecompress gzinput failed test_id={$r->id}");
+                    }
+                    $r->input = $input;
+                }
+                if (!empty($r->gzoutput)) {
+                    $output = bzdecompress($r->gzoutput);
+                    if ($output === false) {
+                        ojfeeder_log("get_tests bzdecompress gzoutput failed test_id={$r->id}");
+                    }
+                    $r->output = $output;
+                }
             }
             $r = new xmlrpcval(array(
                 'id' => new xmlrpcval(sprintf('%d', $r->id), 'string'),
@@ -313,6 +333,17 @@ function get_gztest($xmlrpcmsg)
     $id = $xmlrpcmsg->getParam(0)->scalarVal();
 
     $r = $DB->get_record('programming_tests', array('id'=> $id));
+    if (empty($r)) {
+        ojfeeder_log("get_gztest missing test_id={$id}");
+        $ret = new xmlrpcval(array(), 'struct');
+        return new xmlrpcresp($ret);
+    }
+    $inlen = isset($r->input) ? strlen($r->input) : 0;
+    $outlen = isset($r->output) ? strlen($r->output) : 0;
+    $gzinin = isset($r->gzinput) ? strlen($r->gzinput) : 0;
+    $gzoutlen = isset($r->gzoutput) ? strlen($r->gzoutput) : 0;
+    ojfeeder_log("get_gztest test_id={$id} input={$inlen} output={$outlen} gzinput={$gzinin} gzoutput={$gzoutlen}");
+
     if (empty($r->gzinput)) $r->gzinput = bzcompress($r->input);
     if (empty($r->gzoutput)) $r->gzoutput = bzcompress($r->output);
     $ret = new xmlrpcval(array(