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wp-content/plugins/duplicator-pro-v4.5.16.2/classes/utilities/class.u.zip.php

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+<?php
+
+/**
+ * Utility class for zipping up content
+ *
+ * Standard: PSR-2
+ *
+ * @link http://www.php-fig.org/psr/psr-2
+ *
+ * @package    DUP_PRO
+ * @subpackage classes/utilities
+ * @copyright  (c) 2017, Snapcreek LLC
+ * @license    https://opensource.org/licenses/GPL-3.0 GNU Public License
+ * @since      3.3.0
+ */
+
+use Duplicator\Libs\Shell\Shell;
+
+/**
+ * Helper class for reporting problems with zipping
+ *
+ * @see DUP_PRO_Zip_U
+ */
+class DUP_PRO_Problem_Fix
+{
+    /** @var string The detected problem */
+    public $problem = '';
+    /** @var string A recommended fix for the problem */
+    public $fix = '';
+}
+
+class DUP_PRO_Zip_U
+{
+    /**
+     * Gets an array of possible ZipArchive problems on the server
+     *
+     * @return string[]
+     */
+    private static function getPossibleZipPaths()
+    {
+        return array(
+            '/usr/bin/zip',
+            '/opt/local/bin/zip', // RSR TODO put back in when we support shellexec on windows,
+            //'C:/Program\ Files\ (x86)/GnuWin32/bin/zip.exe');
+            '/opt/bin/zip',
+            '/bin/zip',
+            '/usr/local/bin/zip',
+            '/usr/sfw/bin/zip',
+            '/usr/xdg4/bin/zip',
+        );
+    }
+
+    /**
+     * Gets an array of possible ShellExec Zip problems on the server
+     *
+     * @return DUP_PRO_Problem_Fix[]
+     */
+    public static function getShellExecZipProblems()
+    {
+        $problem_fixes = array();
+        if (!self::getShellExecZipPath()) {
+            $filepath       = null;
+            $possible_paths = self::getPossibleZipPaths();
+            foreach ($possible_paths as $path) {
+                if (file_exists($path)) {
+                    $filepath = $path;
+                    break;
+                }
+            }
+
+            if ($filepath == null) {
+                $problem_fix          = new DUP_PRO_Problem_Fix();
+                $problem_fix->problem = __('Zip executable not present', 'duplicator-pro');
+                $problem_fix->fix     = __('Install the zip executable and make it accessible to PHP.', 'duplicator-pro');
+                $problem_fixes[]      = $problem_fix;
+            }
+
+            if (Shell::isSuhosinEnabled()) {
+                $fixDisabled = __(
+                    'Remove any of the following from the disable_functions or suhosin.executor.func.blacklist setting in the php.ini files: %1$s',
+                    'duplicator-pro'
+                );
+            } else {
+                $fixDisabled = __(
+                    'Remove any of the following from the disable_functions setting in the php.ini files: %1$s',
+                    'duplicator-pro'
+                );
+            }
+
+            //Function disabled at server level
+            if (Shell::hasDisabledFunctions(array('escapeshellarg', 'escapeshellcmd', 'extension_loaded'))) {
+                $problem_fix          = new DUP_PRO_Problem_Fix();
+                $problem_fix->problem = __('Required functions disabled in the php.ini.', 'duplicator-pro');
+                $problem_fix->fix     = sprintf($fixDisabled, 'escapeshellarg, escapeshellcmd, extension_loaded.');
+                $problem_fixes[]      = $problem_fix;
+            }
+
+            if (Shell::hasDisabledFunctions(array('popen', 'pclose', 'exec', 'shell_exec'))) {
+                $problem_fix          = new DUP_PRO_Problem_Fix();
+                $problem_fix->problem = __('Required functions disabled in the php.ini.', 'duplicator-pro');
+                $problem_fix->fix     = sprintf($fixDisabled, 'popen, pclose or exec or shell_exec.');
+                $problem_fixes[]      = $problem_fix;
+            }
+        }
+
+        return $problem_fixes;
+    }
+
+    /**
+     * Get the path to the zip program executable on the server
+     * If wordpress have multiple scan path shell zip archive is disabled
+     *
+     * @return null|string   Returns the path to the zip program or null if isn't available
+     */
+    public static function getShellExecZipPath()
+    {
+        $filepath = null;
+        if (apply_filters('duplicator_pro_is_shellzip_available', Shell::test(Shell::AVAILABLE_COMMANDS))) {
+            $scanPath = DUP_PRO_Archive::getScanPaths();
+            if (count($scanPath) > 1) {
+                return null;
+            }
+
+            $shellOutput = Shell::runCommand('hash zip 2>&1', Shell::AVAILABLE_COMMANDS);
+            if ($shellOutput !== false && $shellOutput->isEmpty()) {
+                $filepath = 'zip';
+            } else {
+                $possible_paths = self::getPossibleZipPaths();
+                foreach ($possible_paths as $path) {
+                    if (file_exists($path)) {
+                        $filepath = $path;
+                        break;
+                    }
+                }
+            }
+        }
+
+        return $filepath;
+    }
+
+    /**
+     * custom shell arg escape sequence
+     *
+     * @param string $arg argument to escape
+     *
+     * @return string
+     */
+    public static function customShellArgEscapeSequence($arg)
+    {
+        return str_replace(array(' ', '-'), array('\ ', '\-'), $arg);
+    }
+}