From c225aa9002676b0d1dff51940175544d36667d8c Mon Sep 17 00:00:00 2001
From: tianya <tianya@imcollege.cn>
Date: Thu, 20 Aug 2020 09:45:05 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E5=9C=A8=E4=B8=8D=E6=94=AF?=
 =?UTF-8?q?=E6=8C=81GD=E5=BA=93=E7=9A=84=E6=83=85=E5=86=B5=E4=B8=8B?=
 =?UTF-8?q?=E8=83=BD=E5=A4=9F=E6=AD=A3=E5=B8=B8=E7=99=BB=E5=BD=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/plus/vdimgck.php | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/plus/vdimgck.php b/src/plus/vdimgck.php
index cf2b07c4..c298df88 100755
--- a/src/plus/vdimgck.php
+++ b/src/plus/vdimgck.php
@@ -35,12 +35,23 @@ if (!echo_validate_image($config))
     // 如果不成功则初始化一个默认验证码
     @session_start();
     $_SESSION['securimage_code_value'] = strtolower('abcd');
-    $im = @imagecreatefromjpeg(DEDEINC.'/data/vdcode.jpg');
-    header("Pragma:no-cache\r\n");
-    header("Cache-Control:no-cache\r\n");
-    header("Expires:0\r\n");
-    imagejpeg($im);
-    imagedestroy($im);
+    if (function_exists('imagecreatefromjpeg')) {
+        $im = @imagecreatefromjpeg(DEDEINC.'/data/vdcode.jpg');
+        header("Pragma:no-cache\r\n");
+        header("Cache-Control:no-cache\r\n");
+        header("Expires:0\r\n");
+        imagejpeg($im);
+        imagedestroy($im);
+    } else {
+        header("Pragma:no-cache\r\n");
+        header("Cache-Control:no-cache\r\n");
+        header("Expires:0\r\n");
+        $c = file_get_contents(DEDEINC.'/data/vdcode.jpg',true);
+        $size = filesize(DEDEINC.'/data/vdcode.jpg');
+        header ('Content-Type: image/x-icon');
+        header ("Content-length: $size");
+        echo $c;
+    }
 }
 
 function echo_validate_image( $config = array() )