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<?php |
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namespace SilverStripe\EnvironmentCheck\Checks; |
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use SilverStripe\EnvironmentCheck\EnvironmentCheck; |
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/** |
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* Check that the given file is writable. |
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* |
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* @package environmentcheck |
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*/ |
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class FileWriteableCheck implements EnvironmentCheck |
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{ |
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/** |
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* @var string |
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*/ |
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protected $path; |
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/** |
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* @param string $path The full path. If a relative path, it will relative to the BASE_PATH. |
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*/ |
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public function __construct($path) |
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{ |
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$this->path = $path; |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @return array |
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*/ |
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public function check() |
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{ |
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if ($this->path[0] == '/') { |
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$filename = $this->path; |
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} else { |
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$filename = BASE_PATH . DIRECTORY_SEPARATOR . str_replace('/', DIRECTORY_SEPARATOR, $this->path); |
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} |
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if (file_exists($filename)) { |
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$isWriteable = is_writeable($filename); |
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} else { |
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$isWriteable = is_writeable(dirname($filename)); |
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} |
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if (!$isWriteable) { |
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if (function_exists('posix_getgroups')) { |
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$userID = posix_geteuid(); |
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$user = posix_getpwuid($userID); |
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$currentOwnerID = fileowner(file_exists($filename) ? $filename : dirname($filename)); |
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$currentOwner = posix_getpwuid($currentOwnerID); |
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$message = "User '$user[name]' needs to be able to write to this file:\n$filename\n\nThe file is " |
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. "currently owned by '$currentOwner[name]'. "; |
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if ($user['name'] == $currentOwner['name']) { |
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$message .= 'We recommend that you make the file writeable.'; |
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} else { |
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$groups = posix_getgroups(); |
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$groupList = []; |
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foreach ($groups as $group) { |
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$groupInfo = posix_getgrgid($group); |
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if (in_array($currentOwner['name'], $groupInfo['members'])) { |
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$groupList[] = $groupInfo['name']; |
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} |
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} |
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if ($groupList) { |
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$message .= " We recommend that you make the file group-writeable and change the group to " |
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. "one of these groups:\n - " . implode("\n - ", $groupList) |
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. "\n\nFor example:\nchmod g+w $filename\nchgrp " . $groupList[0] . " $filename"; |
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} else { |
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$message .= " There is no user-group that contains both the web-server user and the owner " |
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. "of this file. Change the ownership of the file, create a new group, or temporarily " |
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. "make the file writeable by everyone during the install process."; |
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} |
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} |
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} else { |
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$message = "The webserver user needs to be able to write to this file:\n$filename"; |
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} |
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return [EnvironmentCheck::ERROR, $message]; |
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} |
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return [EnvironmentCheck::OK, '']; |
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} |
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} |
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silverstripe /
silverstripe-environmentcheck
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.