[英]PHP require Permission Denied even with 777 permissions and correct group on file + directory
當組和用戶設置正確時,PHP能夠讀取文件,我從來沒有遇到過問題。
Apache在www-data用戶下運行,因此我使用777 chmod將所有內容(組和用戶權限)設置為www-data,但仍然無法正常工作。
不知道發生了什么。
PHP不在安全模式下。
碼:
require ('/root/app/class/api.php');
文件系統:
$ pwd
/root/app/class
$ ls -la
total 76
drwxrwxrwx 2 www-data www-data 4096 Oct 8 10:59 .
drwxrwxrwx 9 www-data www-data 4096 Sep 25 21:25 ..
-rw-r--r-- 1 root root 26896 Jan 13 2014 something_else.php
-rw-rw-r-- 1 root root 32807 Mar 11 2015 something.php
-rwxrwxrwx 1 www-data www-data 3439 Mar 3 2015 api.php
錯誤:
Warning: require(/root/app/class/api.php): failed to open stream: Permission denied in /var/www/website.com/htdocs/app_frontend/include/config.php on line 36
Fatal error: require(): Failed opening required '/root/app/class/api.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/website.com/htdocs/app_frontend/include/config.php on line 36
嘗試調試:
error_reporting(E_ALL);
ini_set('display_errors','On');
$file = '/root/app/class/api.php';
echo sprintf ( '%o', fileperms ( $file ) ), PHP_EOL;
echo posix_getpwuid ( fileowner ( $file ) ), PHP_EOL; // Get Owner
echo posix_getpwuid ( posix_getuid () ), PHP_EOL; // Get User
if (is_file ( $file )) {
echo "is_file", PHP_EOL;
;
}
if (is_readable ( $file )) {
echo "is_readable", PHP_EOL;
;
}
if (is_writable ( $file )) {
echo "is_readable", PHP_EOL;
}
fopen ( $file, "w" );
結果:
Warning: fileperms(): stat failed for /root/app/class/api.php in /var/www/website.com/...
Warning: fileowner(): stat failed for /root/app/class/api.php in /var/www/website.com/...
編輯:我的服務器上沒有啟用SElinux,這是apachectl DUMP_MODULES的輸出
$ /usr/sbin/apachectl -t -D DUMP_MODULES
Loaded Modules:
core_module (static)
so_module (static)
watchdog_module (static)
http_module (static)
log_config_module (static)
logio_module (static)
version_module (static)
unixd_module (static)
access_compat_module (shared)
alias_module (shared)
auth_basic_module (shared)
authn_core_module (shared)
authn_file_module (shared)
authz_core_module (shared)
authz_host_module (shared)
authz_user_module (shared)
autoindex_module (shared)
deflate_module (shared)
dir_module (shared)
env_module (shared)
filter_module (shared)
mime_module (shared)
mpm_prefork_module (shared)
negotiation_module (shared)
php5_module (shared)
rewrite_module (shared)
setenvif_module (shared)
status_module (shared)
該文件的完整路徑需要可讀才能使PHP打開。
例如:
# cd /
# ls -al
drwx------ 3 root wheel 102 jan 1 2014 root
# sudo su
Password:
$ cd /root
$ mkdir pub
$ chmod 777 pub
$ vi pub/test.php
<?php
echo "Hi, world!";
:wq
$ chmod 666 pub/test.php
$ php -a
Interactive shell
php > include "/root/pub/test.php";
Hi, world!
php > exit
$ exit
# php -a
Interactive shell
php > include "/root/pub/test.php";
PHP Warning: include(/root/pub/test.php): failed to open stream: Permission denied in php shell code on line 1
...
請注意,在此示例中, /root
是並且應該始終 僅由root可讀,可寫且可執行。
TL; DR:將文件移出/root
。 確保文件的完整路徑可讀。
禁用SELinux並查看結果。 如果是這種情況,只需安裝並運行一個名為SELinux故障排除程序的程序即可。
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