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16b8d91baa
* Add missing translator comments. * Fix placement of some translator comments. Translator comments should be on the line directly above the line containing the translation function call for optimal compatibility with various `.pot` file generation tools. The CS auto-fixing, which changed some inconsistent function calls to multi-line function calls, is part of the reason why this was no longer the case for a select group of translator comments. Includes minor code layout fixes. Polyglots, rejoice! All WordPress core files now have translator comments for all strings with placeholders! Props jrf, subrataemfluence, GaryJ, webdados, Dency, swissspidy, alvarogois, marcomartins, mihaiiceyro, vladwtz, niq1982, flipkeijzer, michielatyoast, chandrapatel, thrijith, joshuanoyce, FesoVik, tessak22, bhaktirajdev, cleancoded, dhavalkasvala, garrett-eclipse, bibliofille, socalchristina, priyankkpatel, 5hel2l2y, adamsilverstein, JeffPaul, pierlo, SergeyBiryukov. Fixes #44360. Built from https://develop.svn.wordpress.org/trunk@45926 git-svn-id: http://core.svn.wordpress.org/trunk@45737 1a063a9b-81f0-0310-95a4-ce76da25c4cd
777 lines
22 KiB
PHP
777 lines
22 KiB
PHP
<?php
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/**
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* WordPress Filesystem Class for implementing SSH2
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*
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* To use this class you must follow these steps for PHP 5.2.6+
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*
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* @contrib http://kevin.vanzonneveld.net/techblog/article/make_ssh_connections_with_php/ - Installation Notes
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*
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* Complie libssh2 (Note: Only 0.14 is officaly working with PHP 5.2.6+ right now, But many users have found the latest versions work)
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*
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* cd /usr/src
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* wget http://surfnet.dl.sourceforge.net/sourceforge/libssh2/libssh2-0.14.tar.gz
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* tar -zxvf libssh2-0.14.tar.gz
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* cd libssh2-0.14/
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* ./configure
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* make all install
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*
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* Note: Do not leave the directory yet!
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*
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* Enter: pecl install -f ssh2
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*
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* Copy the ssh.so file it creates to your PHP Module Directory.
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* Open up your PHP.INI file and look for where extensions are placed.
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* Add in your PHP.ini file: extension=ssh2.so
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*
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* Restart Apache!
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* Check phpinfo() streams to confirm that: ssh2.shell, ssh2.exec, ssh2.tunnel, ssh2.scp, ssh2.sftp exist.
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*
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* Note: as of WordPress 2.8, This utilises the PHP5+ function 'stream_get_contents'
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*
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* @since 2.7.0
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*
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* @package WordPress
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* @subpackage Filesystem
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*/
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class WP_Filesystem_SSH2 extends WP_Filesystem_Base {
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/**
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* @since 2.7.0
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* @var resource
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*/
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public $link = false;
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/**
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* @since 2.7.0
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* @var resource
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*/
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public $sftp_link;
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/**
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* @since 2.7.0
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* @var bool
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*/
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public $keys = false;
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/**
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* Constructor.
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*
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* @since 2.7.0
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*
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* @param array $opt
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*/
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public function __construct( $opt = '' ) {
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$this->method = 'ssh2';
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$this->errors = new WP_Error();
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//Check if possible to use ssh2 functions.
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if ( ! extension_loaded( 'ssh2' ) ) {
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$this->errors->add( 'no_ssh2_ext', __( 'The ssh2 PHP extension is not available' ) );
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return;
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}
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if ( ! function_exists( 'stream_get_contents' ) ) {
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$this->errors->add(
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'ssh2_php_requirement',
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sprintf(
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/* translators: %s: stream_get_contents() */
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__( 'The ssh2 PHP extension is available, however, we require the PHP5 function %s' ),
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'<code>stream_get_contents()</code>'
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)
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);
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return;
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}
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// Set defaults:
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if ( empty( $opt['port'] ) ) {
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$this->options['port'] = 22;
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} else {
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$this->options['port'] = $opt['port'];
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}
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if ( empty( $opt['hostname'] ) ) {
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$this->errors->add( 'empty_hostname', __( 'SSH2 hostname is required' ) );
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} else {
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$this->options['hostname'] = $opt['hostname'];
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}
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// Check if the options provided are OK.
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if ( ! empty( $opt['public_key'] ) && ! empty( $opt['private_key'] ) ) {
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$this->options['public_key'] = $opt['public_key'];
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$this->options['private_key'] = $opt['private_key'];
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$this->options['hostkey'] = array( 'hostkey' => 'ssh-rsa' );
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$this->keys = true;
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} elseif ( empty( $opt['username'] ) ) {
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$this->errors->add( 'empty_username', __( 'SSH2 username is required' ) );
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}
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if ( ! empty( $opt['username'] ) ) {
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$this->options['username'] = $opt['username'];
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}
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if ( empty( $opt['password'] ) ) {
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// Password can be blank if we are using keys.
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if ( ! $this->keys ) {
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$this->errors->add( 'empty_password', __( 'SSH2 password is required' ) );
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}
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} else {
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$this->options['password'] = $opt['password'];
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}
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}
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/**
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* Connects filesystem.
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*
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* @since 2.7.0
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*
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* @return bool True on success, false on failure.
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*/
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public function connect() {
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if ( ! $this->keys ) {
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$this->link = @ssh2_connect( $this->options['hostname'], $this->options['port'] );
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} else {
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$this->link = @ssh2_connect( $this->options['hostname'], $this->options['port'], $this->options['hostkey'] );
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}
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if ( ! $this->link ) {
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$this->errors->add(
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'connect',
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sprintf(
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/* translators: %s: hostname:port */
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__( 'Failed to connect to SSH2 Server %s' ),
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$this->options['hostname'] . ':' . $this->options['port']
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)
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);
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return false;
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}
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if ( ! $this->keys ) {
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if ( ! @ssh2_auth_password( $this->link, $this->options['username'], $this->options['password'] ) ) {
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$this->errors->add(
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'auth',
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sprintf(
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/* translators: %s: username */
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__( 'Username/Password incorrect for %s' ),
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$this->options['username']
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)
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);
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return false;
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}
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} else {
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if ( ! @ssh2_auth_pubkey_file( $this->link, $this->options['username'], $this->options['public_key'], $this->options['private_key'], $this->options['password'] ) ) {
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$this->errors->add(
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'auth',
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sprintf(
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/* translators: %s: username */
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__( 'Public and Private keys incorrect for %s' ),
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$this->options['username']
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)
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);
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return false;
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}
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}
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$this->sftp_link = ssh2_sftp( $this->link );
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if ( ! $this->sftp_link ) {
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$this->errors->add(
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'connect',
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sprintf(
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/* translators: %s: hostname:port */
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__( 'Failed to initialize a SFTP subsystem session with the SSH2 Server %s' ),
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$this->options['hostname'] . ':' . $this->options['port']
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)
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);
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return false;
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}
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return true;
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}
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/**
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* Gets the ssh2.sftp PHP stream wrapper path to open for the given file.
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*
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* This method also works around a PHP bug where the root directory (/) cannot
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* be opened by PHP functions, causing a false failure. In order to work around
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* this, the path is converted to /./ which is semantically the same as /
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* See https://bugs.php.net/bug.php?id=64169 for more details.
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*
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* @since 4.4.0
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*
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* @param string $path The File/Directory path on the remote server to return
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* @return string The ssh2.sftp:// wrapped path to use.
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*/
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public function sftp_path( $path ) {
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if ( '/' === $path ) {
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$path = '/./';
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}
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return 'ssh2.sftp://' . $this->sftp_link . '/' . ltrim( $path, '/' );
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}
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/**
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* @since 2.7.0
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*
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* @param string $command
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* @param bool $returnbool
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* @return bool|string True on success, false on failure. String if the command was executed, `$returnbool`
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* is false (default), and data from the resulting stream was retrieved.
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*/
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public function run_command( $command, $returnbool = false ) {
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if ( ! $this->link ) {
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return false;
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}
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$stream = ssh2_exec( $this->link, $command );
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if ( ! $stream ) {
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$this->errors->add(
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'command',
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sprintf(
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/* translators: %s: command */
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__( 'Unable to perform command: %s' ),
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$command
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)
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);
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} else {
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stream_set_blocking( $stream, true );
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stream_set_timeout( $stream, FS_TIMEOUT );
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$data = stream_get_contents( $stream );
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fclose( $stream );
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if ( $returnbool ) {
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return ( $data === false ) ? false : '' != trim( $data );
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} else {
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return $data;
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}
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}
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return false;
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}
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/**
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* Reads entire file into a string.
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*
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* @since 2.7.0
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*
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* @param string $file Name of the file to read.
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* @return string|false Read data on success, false if no temporary file could be opened,
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* or if the file couldn't be retrieved.
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*/
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public function get_contents( $file ) {
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return file_get_contents( $this->sftp_path( $file ) );
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}
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/**
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* Reads entire file into an array.
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*
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* @since 2.7.0
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*
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* @param string $file Path to the file.
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* @return array|false File contents in an array on success, false on failure.
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*/
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public function get_contents_array( $file ) {
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return file( $this->sftp_path( $file ) );
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}
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/**
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* Writes a string to a file.
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*
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* @since 2.7.0
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*
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* @param string $file Remote path to the file where to write the data.
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* @param string $contents The data to write.
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* @param int|false $mode Optional. The file permissions as octal number, usually 0644.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function put_contents( $file, $contents, $mode = false ) {
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$ret = file_put_contents( $this->sftp_path( $file ), $contents );
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if ( $ret !== strlen( $contents ) ) {
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return false;
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}
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$this->chmod( $file, $mode );
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return true;
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}
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/**
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* Gets the current working directory.
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*
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* @since 2.7.0
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*
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* @return string|false The current working directory on success, false on failure.
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*/
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public function cwd() {
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$cwd = ssh2_sftp_realpath( $this->sftp_link, '.' );
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if ( $cwd ) {
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$cwd = trailingslashit( trim( $cwd ) );
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}
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return $cwd;
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}
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/**
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* Changes current directory.
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*
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* @since 2.7.0
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*
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* @param string $dir The new current directory.
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* @return bool True on success, false on failure.
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*/
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public function chdir( $dir ) {
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return $this->run_command( 'cd ' . $dir, true );
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}
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/**
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* Changes the file group.
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*
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* @since 2.7.0
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*
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* @param string $file Path to the file.
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* @param string|int $group A group name or number.
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* @param bool $recursive Optional. If set to true, changes file group recursively.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function chgrp( $file, $group, $recursive = false ) {
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if ( ! $this->exists( $file ) ) {
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return false;
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}
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if ( ! $recursive || ! $this->is_dir( $file ) ) {
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return $this->run_command( sprintf( 'chgrp %s %s', escapeshellarg( $group ), escapeshellarg( $file ) ), true );
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}
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return $this->run_command( sprintf( 'chgrp -R %s %s', escapeshellarg( $group ), escapeshellarg( $file ) ), true );
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}
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/**
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* Changes filesystem permissions.
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*
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* @since 2.7.0
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*
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* @param string $file Path to the file.
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* @param int|false $mode Optional. The permissions as octal number, usually 0644 for files,
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* 0755 for directories. Default false.
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* @param bool $recursive Optional. If set to true, changes file group recursively.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function chmod( $file, $mode = false, $recursive = false ) {
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if ( ! $this->exists( $file ) ) {
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return false;
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}
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if ( ! $mode ) {
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if ( $this->is_file( $file ) ) {
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$mode = FS_CHMOD_FILE;
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} elseif ( $this->is_dir( $file ) ) {
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$mode = FS_CHMOD_DIR;
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} else {
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return false;
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}
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}
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if ( ! $recursive || ! $this->is_dir( $file ) ) {
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return $this->run_command( sprintf( 'chmod %o %s', $mode, escapeshellarg( $file ) ), true );
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}
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return $this->run_command( sprintf( 'chmod -R %o %s', $mode, escapeshellarg( $file ) ), true );
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}
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/**
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* Changes the owner of a file or directory.
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*
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* @since 2.7.0
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*
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* @param string $file Path to the file or directory.
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* @param string|int $owner A user name or number.
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* @param bool $recursive Optional. If set to true, changes file owner recursively.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function chown( $file, $owner, $recursive = false ) {
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if ( ! $this->exists( $file ) ) {
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return false;
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}
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if ( ! $recursive || ! $this->is_dir( $file ) ) {
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return $this->run_command( sprintf( 'chown %s %s', escapeshellarg( $owner ), escapeshellarg( $file ) ), true );
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}
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return $this->run_command( sprintf( 'chown -R %s %s', escapeshellarg( $owner ), escapeshellarg( $file ) ), true );
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}
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/**
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* Gets the file owner.
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*
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* @since 2.7.0
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*
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* @param string $file Path to the file.
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* @return string|false Username of the owner on success, false on failure.
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*/
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public function owner( $file ) {
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$owneruid = @fileowner( $this->sftp_path( $file ) );
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if ( ! $owneruid ) {
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return false;
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}
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if ( ! function_exists( 'posix_getpwuid' ) ) {
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return $owneruid;
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}
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$ownerarray = posix_getpwuid( $owneruid );
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return $ownerarray['name'];
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}
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/**
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* Gets the permissions of the specified file or filepath in their octal format.
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*
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* @since 2.7.0
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*
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* @param string $file Path to the file.
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* @return string Mode of the file (the last 3 digits).
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*/
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public function getchmod( $file ) {
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return substr( decoct( @fileperms( $this->sftp_path( $file ) ) ), -3 );
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}
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/**
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* Gets the file's group.
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*
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* @since 2.7.0
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*
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* @param string $file Path to the file.
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* @return string|false The group on success, false on failure.
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*/
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public function group( $file ) {
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$gid = @filegroup( $this->sftp_path( $file ) );
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if ( ! $gid ) {
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return false;
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}
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if ( ! function_exists( 'posix_getgrgid' ) ) {
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return $gid;
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}
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$grouparray = posix_getgrgid( $gid );
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return $grouparray['name'];
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}
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/**
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* Copies a file.
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*
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* @since 2.7.0
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*
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* @param string $source Path to the source file.
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* @param string $destination Path to the destination file.
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* @param bool $overwrite Optional. Whether to overwrite the destination file if it exists.
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* Default false.
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* @param int|false $mode Optional. The permissions as octal number, usually 0644 for files,
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* 0755 for dirs. Default false.
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* @return bool True on success, false on failure.
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*/
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public function copy( $source, $destination, $overwrite = false, $mode = false ) {
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if ( ! $overwrite && $this->exists( $destination ) ) {
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return false;
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}
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$content = $this->get_contents( $source );
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if ( false === $content ) {
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return false;
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}
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return $this->put_contents( $destination, $content, $mode );
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}
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/**
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* Moves a file.
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*
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* @since 2.7.0
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*
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* @param string $source Path to the source file.
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* @param string $destination Path to the destination file.
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* @param bool $overwrite Optional. Whether to overwrite the destination file if it exists.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function move( $source, $destination, $overwrite = false ) {
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if ( $this->exists( $destination ) ) {
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if ( $overwrite ) {
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// We need to remove the destination file before we can rename the source.
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$this->delete( $destination, false, 'f' );
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} else {
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// If we're not overwriting, the rename will fail, so return early.
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return false;
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}
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}
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return ssh2_sftp_rename( $this->sftp_link, $source, $destination );
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}
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/**
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* Deletes a file or directory.
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*
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* @since 2.7.0
|
|
*
|
|
* @param string $file Path to the file or directory.
|
|
* @param bool $recursive Optional. If set to true, changes file group recursively.
|
|
* Default false.
|
|
* @param string|false $type Type of resource. 'f' for file, 'd' for directory.
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function delete( $file, $recursive = false, $type = false ) {
|
|
if ( 'f' == $type || $this->is_file( $file ) ) {
|
|
return ssh2_sftp_unlink( $this->sftp_link, $file );
|
|
}
|
|
if ( ! $recursive ) {
|
|
return ssh2_sftp_rmdir( $this->sftp_link, $file );
|
|
}
|
|
$filelist = $this->dirlist( $file );
|
|
if ( is_array( $filelist ) ) {
|
|
foreach ( $filelist as $filename => $fileinfo ) {
|
|
$this->delete( $file . '/' . $filename, $recursive, $fileinfo['type'] );
|
|
}
|
|
}
|
|
return ssh2_sftp_rmdir( $this->sftp_link, $file );
|
|
}
|
|
|
|
/**
|
|
* Checks if a file or directory exists.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file Path to file or directory.
|
|
* @return bool Whether $file exists or not.
|
|
*/
|
|
public function exists( $file ) {
|
|
return file_exists( $this->sftp_path( $file ) );
|
|
}
|
|
|
|
/**
|
|
* Checks if resource is a file.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file File path.
|
|
* @return bool Whether $file is a file.
|
|
*/
|
|
public function is_file( $file ) {
|
|
return is_file( $this->sftp_path( $file ) );
|
|
}
|
|
|
|
/**
|
|
* Checks if resource is a directory.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $path Directory path.
|
|
* @return bool Whether $path is a directory.
|
|
*/
|
|
public function is_dir( $path ) {
|
|
return is_dir( $this->sftp_path( $path ) );
|
|
}
|
|
|
|
/**
|
|
* Checks if a file is readable.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return bool Whether $file is readable.
|
|
*/
|
|
public function is_readable( $file ) {
|
|
return is_readable( $this->sftp_path( $file ) );
|
|
}
|
|
|
|
/**
|
|
* Checks if a file or directory is writable.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file Path to file or directory.
|
|
* @return bool Whether $file is writable.
|
|
*/
|
|
public function is_writable( $file ) {
|
|
// PHP will base it's writable checks on system_user === file_owner, not ssh_user === file_owner
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Gets the file's last access time.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return int|false Unix timestamp representing last access time, false on failure.
|
|
*/
|
|
public function atime( $file ) {
|
|
return fileatime( $this->sftp_path( $file ) );
|
|
}
|
|
|
|
/**
|
|
* Gets the file modification time.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return int|false Unix timestamp representing modification time, false on failure.
|
|
*/
|
|
public function mtime( $file ) {
|
|
return filemtime( $this->sftp_path( $file ) );
|
|
}
|
|
|
|
/**
|
|
* Gets the file size (in bytes).
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return int|false Size of the file in bytes on success, false on failure.
|
|
*/
|
|
public function size( $file ) {
|
|
return filesize( $this->sftp_path( $file ) );
|
|
}
|
|
|
|
/**
|
|
* Sets the access and modification times of a file.
|
|
*
|
|
* Note: Not implemented.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $file Path to file.
|
|
* @param int $time Optional. Modified time to set for file.
|
|
* Default 0.
|
|
* @param int $atime Optional. Access time to set for file.
|
|
* Default 0.
|
|
*/
|
|
public function touch( $file, $time = 0, $atime = 0 ) {
|
|
// Not implemented.
|
|
}
|
|
|
|
/**
|
|
* Creates a directory.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $path Path for new directory.
|
|
* @param int|false $chmod Optional. The permissions as octal number (or false to skip chmod).
|
|
* Default false.
|
|
* @param string|int $chown Optional. A user name or number (or false to skip chown).
|
|
* Default false.
|
|
* @param string|int $chgrp Optional. A group name or number (or false to skip chgrp).
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function mkdir( $path, $chmod = false, $chown = false, $chgrp = false ) {
|
|
$path = untrailingslashit( $path );
|
|
if ( empty( $path ) ) {
|
|
return false;
|
|
}
|
|
|
|
if ( ! $chmod ) {
|
|
$chmod = FS_CHMOD_DIR;
|
|
}
|
|
if ( ! ssh2_sftp_mkdir( $this->sftp_link, $path, $chmod, true ) ) {
|
|
return false;
|
|
}
|
|
if ( $chown ) {
|
|
$this->chown( $path, $chown );
|
|
}
|
|
if ( $chgrp ) {
|
|
$this->chgrp( $path, $chgrp );
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Deletes a directory.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $path Path to directory.
|
|
* @param bool $recursive Optional. Whether to recursively remove files/directories.
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function rmdir( $path, $recursive = false ) {
|
|
return $this->delete( $path, $recursive );
|
|
}
|
|
|
|
/**
|
|
* Gets details for files in a directory or a specific file.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $path Path to directory or file.
|
|
* @param bool $include_hidden Optional. Whether to include details of hidden ("." prefixed) files.
|
|
* Default true.
|
|
* @param bool $recursive Optional. Whether to recursively include file details in nested directories.
|
|
* Default false.
|
|
* @return array|false {
|
|
* Array of files. False if unable to list directory contents.
|
|
*
|
|
* @type string $name Name of the file or directory.
|
|
* @type string $perms *nix representation of permissions.
|
|
* @type int $permsn Octal representation of permissions.
|
|
* @type string $owner Owner name or ID.
|
|
* @type int $size Size of file in bytes.
|
|
* @type int $lastmodunix Last modified unix timestamp.
|
|
* @type mixed $lastmod Last modified month (3 letter) and day (without leading 0).
|
|
* @type int $time Last modified time.
|
|
* @type string $type Type of resource. 'f' for file, 'd' for directory.
|
|
* @type mixed $files If a directory and $recursive is true, contains another array of files.
|
|
* }
|
|
*/
|
|
public function dirlist( $path, $include_hidden = true, $recursive = false ) {
|
|
if ( $this->is_file( $path ) ) {
|
|
$limit_file = basename( $path );
|
|
$path = dirname( $path );
|
|
} else {
|
|
$limit_file = false;
|
|
}
|
|
|
|
if ( ! $this->is_dir( $path ) || ! $this->is_readable( $path ) ) {
|
|
return false;
|
|
}
|
|
|
|
$ret = array();
|
|
$dir = dir( $this->sftp_path( $path ) );
|
|
|
|
if ( ! $dir ) {
|
|
return false;
|
|
}
|
|
|
|
while ( false !== ( $entry = $dir->read() ) ) {
|
|
$struc = array();
|
|
$struc['name'] = $entry;
|
|
|
|
if ( '.' == $struc['name'] || '..' == $struc['name'] ) {
|
|
continue; //Do not care about these folders.
|
|
}
|
|
|
|
if ( ! $include_hidden && '.' == $struc['name'][0] ) {
|
|
continue;
|
|
}
|
|
|
|
if ( $limit_file && $struc['name'] != $limit_file ) {
|
|
continue;
|
|
}
|
|
|
|
$struc['perms'] = $this->gethchmod( $path . '/' . $entry );
|
|
$struc['permsn'] = $this->getnumchmodfromh( $struc['perms'] );
|
|
$struc['number'] = false;
|
|
$struc['owner'] = $this->owner( $path . '/' . $entry );
|
|
$struc['group'] = $this->group( $path . '/' . $entry );
|
|
$struc['size'] = $this->size( $path . '/' . $entry );
|
|
$struc['lastmodunix'] = $this->mtime( $path . '/' . $entry );
|
|
$struc['lastmod'] = gmdate( 'M j', $struc['lastmodunix'] );
|
|
$struc['time'] = gmdate( 'h:i:s', $struc['lastmodunix'] );
|
|
$struc['type'] = $this->is_dir( $path . '/' . $entry ) ? 'd' : 'f';
|
|
|
|
if ( 'd' == $struc['type'] ) {
|
|
if ( $recursive ) {
|
|
$struc['files'] = $this->dirlist( $path . '/' . $struc['name'], $include_hidden, $recursive );
|
|
} else {
|
|
$struc['files'] = array();
|
|
}
|
|
}
|
|
|
|
$ret[ $struc['name'] ] = $struc;
|
|
}
|
|
$dir->close();
|
|
unset( $dir );
|
|
return $ret;
|
|
}
|
|
}
|