可以';t执行从php导入cv2.so的python脚本


Can't execute python script that imports cv2.so from php

我正在尝试从php 运行一个用于图像处理的python脚本

php脚本

<?php
echo exec('echo $PATH ');
putenv("PATH=/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/user/.local/bin:/home/user/bin");
echo "<br>";
echo exec('echo $PATH');
echo "<br>";
echo exec('whoami');
echo "<br>";
echo exec('/usr/bin/python /var/www/html/wordspot/uploads/editimage1.py /var/www/html/wordspot/uploads/test.jpg 2>&1'); ?>

python脚本

import sys,getopt
import numpy as np
import cv2
imname=str(sys.argv[1])
print imname
img=cv2.imread(imname,0)
ret,thresh1 = cv2.threshold(img,127,255,cv2.THRESH_BINARY)
cv2.imwrite(imname,thresh1)

当在终端上执行"phptest.php"时,它可以工作(我以root身份运行它)

在浏览器上我得到这个输出

/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/user/.local/bin:/home/user/bin
apache
ImportError: libopencv_core.so.3.0: cannot open shared object file: No such file or directory

我认为导入cv2.so导致了这个错误(例如,它在helloworldpython示例上运行)我能做些什么让opencv库对apache用户可见?

编辑解决方案:在/etc/ld.so.conf.d/opencv.confexecuting ldconfig -v中添加库的路径将错误更改为"ImportError: libopencv_core.so.3.0: cannot enable executable stack as shared object requires: Permission denied"

在用setenforce 0禁用SELinux后,它工作了。(这将无法在重新启动后继续运行,SELinux需要从/etc/selinux/config中禁用并更改为SELINUX=disabled,或者在SELinux中提供正确的权限以允许访问库。)

libopencv_core.so.3.0位于何处?如果它在/usr/local/lib中,请在执行程序之前尝试这样设置LD_LIBRARY_PATH

putenv("LD_LIBRARY_PATH=/usr/local/lib");