request_filesystem_credentials

Source code

function request_filesystem_credentials($form_post, $type = '', $error = false, $context = false, $extra_fields = null) {

	$req_cred = apply_filters( 'request_filesystem_credentials', '', $form_post, $type, $error, $context, $extra_fields );

	if ( '' !== $req_cred )

		return $req_cred;



	if ( empty($type) )

		$type = get_filesystem_method(array(), $context);



	if ( 'direct' == $type )

		return true;



	if ( is_null( $extra_fields ) )

		$extra_fields = array( 'version', 'locale' );



	$credentials = get_option('ftp_credentials', array( 'hostname' => '', 'username' => ''));



	// If defined, set it to that, Else, If POST'd, set it to that, If not, Set it to whatever it previously was(saved details in option)

	$credentials['hostname'] = defined('FTP_HOST') ? FTP_HOST : (!empty($_POST['hostname']) ? stripslashes($_POST['hostname']) : $credentials['hostname']);

	$credentials['username'] = defined('FTP_USER') ? FTP_USER : (!empty($_POST['username']) ? stripslashes($_POST['username']) : $credentials['username']);

	$credentials['password'] = defined('FTP_PASS') ? FTP_PASS : (!empty($_POST['password']) ? stripslashes($_POST['password']) : '');



	// Check to see if we are setting the public/private keys for ssh

	$credentials['public_key'] = defined('FTP_PUBKEY') ? FTP_PUBKEY : (!empty($_POST['public_key']) ? stripslashes($_POST['public_key']) : '');

	$credentials['private_key'] = defined('FTP_PRIKEY') ? FTP_PRIKEY : (!empty($_POST['private_key']) ? stripslashes($_POST['private_key']) : '');



	//sanitize the hostname, Some people might pass in odd-data:

	$credentials['hostname'] = preg_replace('|\w+://|', '', $credentials['hostname']); //Strip any schemes off



	if ( strpos($credentials['hostname'], ':') ) {

		list( $credentials['hostname'], $credentials['port'] ) = explode(':', $credentials['hostname'], 2);

		if ( ! is_numeric($credentials['port']) )

			unset($credentials['port']);

	} else {

		unset($credentials['port']);

	}



	if ( (defined('FTP_SSH') && FTP_SSH) || (defined('FS_METHOD') && 'ssh' == FS_METHOD) )

		$credentials['connection_type'] = 'ssh';

	else if ( (defined('FTP_SSL') && FTP_SSL) && 'ftpext' == $type ) //Only the FTP Extension understands SSL

		$credentials['connection_type'] = 'ftps';

	else if ( !empty($_POST['connection_type']) )

		$credentials['connection_type'] = stripslashes($_POST['connection_type']);

	else if ( !isset($credentials['connection_type']) ) //All else fails (And its not defaulted to something else saved), Default to FTP

		$credentials['connection_type'] = 'ftp';



	if ( ! $error &&

			(

				( !empty($credentials['password']) && !empty($credentials['username']) && !empty($credentials['hostname']) ) ||

				( 'ssh' == $credentials['connection_type'] && !empty($credentials['public_key']) && !empty($credentials['private_key']) )

			) ) {

		$stored_credentials = $credentials;

		if ( !empty($stored_credentials['port']) ) //save port as part of hostname to simplify above code.

			$stored_credentials['hostname'] .= ':' . $stored_credentials['port'];



		unset($stored_credentials['password'], $stored_credentials['port'], $stored_credentials['private_key'], $stored_credentials['public_key']);

		update_option('ftp_credentials', $stored_credentials);

		return $credentials;

	}

	$hostname = '';

	$username = '';

	$password = '';

	$connection_type = '';

	if ( !empty($credentials) )

		extract($credentials, EXTR_OVERWRITE);

	if ( $error ) {

		$error_string = __('<strong>Error:</strong> There was an error connecting to the server, Please verify the settings are correct.');

		if ( is_wp_error($error) )

			$error_string = esc_html( $error->get_error_message() );

		echo '<div id="message" class="error"><p>' . $error_string . '</p></div>';

	}



	$types = array();

	if ( extension_loaded('ftp') || extension_loaded('sockets') || function_exists('fsockopen') )

		$types[ 'ftp' ] = __('FTP');

	if ( extension_loaded('ftp') ) //Only this supports FTPS

		$types[ 'ftps' ] = __('FTPS (SSL)');

	if ( extension_loaded('ssh2') && function_exists('stream_get_contents') )

		$types[ 'ssh' ] = __('SSH2');



	$types = apply_filters('fs_ftp_connection_types', $types, $credentials, $type, $error, $context);



?>

<script type="text/javascript">

<!--

jQuery(function($){

	jQuery("#ssh").click(function () {

		jQuery("#ssh_keys").show();

	});

	jQuery("#ftp, #ftps").click(function () {

		jQuery("#ssh_keys").hide();

	});

	jQuery('form input[value=""]:first').focus();

});

-->

</script>

<form action="<?php echo $form_post ?>" method="post">

<div class="wrap">

<?php screen_icon(); ?>

<h2><?php _e('Connection Information') ?></h2>

<p><?php

	$label_user = __('Username');

	$label_pass = __('Password');

	_e('To perform the requested action, WordPress needs to access your web server.');

	echo ' ';

	if ( ( isset( $types['ftp'] ) || isset( $types['ftps'] ) ) ) {

		if ( isset( $types['ssh'] ) ) {

			_e('Please enter your FTP or SSH credentials to proceed.');

			$label_user = __('FTP/SSH Username');

			$label_pass = __('FTP/SSH Password');

		} else {

			_e('Please enter your FTP credentials to proceed.');

			$label_user = __('FTP Username');

			$label_pass = __('FTP Password');

		}

		echo ' ';

	}

	_e('If you do not remember your credentials, you should contact your web host.');

?></p>

<table class="form-table">

<tr valign="top">

<th scope="row"><label for="hostname"><?php _e('Hostname') ?></label></th>

<td><input name="hostname" type="text" id="hostname" value="<?php echo esc_attr($hostname); if ( !empty($port) ) echo ":$port"; ?>"<?php disabled( defined('FTP_HOST') ); ?> size="40" /></td>

</tr>



<tr valign="top">

<th scope="row"><label for="username"><?php echo $label_user; ?></label></th>

<td><input name="username" type="text" id="username" value="<?php echo esc_attr($username) ?>"<?php disabled( defined('FTP_USER') ); ?> size="40" /></td>

</tr>



<tr valign="top">

<th scope="row"><label for="password"><?php echo $label_pass; ?></label></th>

<td><input name="password" type="password" id="password" value="<?php if ( defined('FTP_PASS') ) echo '*****'; ?>"<?php disabled( defined('FTP_PASS') ); ?> size="40" /></td>

</tr>



<?php if ( isset($types['ssh']) ) : ?>

<tr id="ssh_keys" valign="top" style="<?php if ( 'ssh' != $connection_type ) echo 'display:none' ?>">

<th scope="row"><?php _e('Authentication Keys') ?>

<div class="key-labels textright">

<label for="public_key"><?php _e('Public Key:') ?></label ><br />

<label for="private_key"><?php _e('Private Key:') ?></label>

</div></th>

<td><br /><input name="public_key" type="text" id="public_key" value="<?php echo esc_attr($public_key) ?>"<?php disabled( defined('FTP_PUBKEY') ); ?> size="40" /><br /><input name="private_key" type="text" id="private_key" value="<?php echo esc_attr($private_key) ?>"<?php disabled( defined('FTP_PRIKEY') ); ?> size="40" />

<div><?php _e('Enter the location on the server where the keys are located. If a passphrase is needed, enter that in the password field above.') ?></div></td>

</tr>

<?php endif; ?>



<tr valign="top">

<th scope="row"><?php _e('Connection Type') ?></th>

<td>

<fieldset><legend class="screen-reader-text"><span><?php _e('Connection Type') ?></span></legend>

<?php

	$disabled = disabled( (defined('FTP_SSL') && FTP_SSL) || (defined('FTP_SSH') && FTP_SSH), true, false );

	foreach ( $types as $name => $text ) : ?>

	<label for="<?php echo esc_attr($name) ?>">

		<input type="radio" name="connection_type" id="<?php echo esc_attr($name) ?>" value="<?php echo esc_attr($name) ?>"<?php checked($name, $connection_type); echo $disabled; ?> />

		<?php echo $text ?>

	</label>

	<?php endforeach; ?>

</fieldset>

</td>

</tr>

</table>



<?php

foreach ( (array) $extra_fields as $field ) {

	if ( isset( $_POST[ $field ] ) )

		echo '<input type="hidden" name="' . esc_attr( $field ) . '" value="' . esc_attr( stripslashes( $_POST[ $field ] ) ) . '" />';

}

submit_button( __( 'Proceed' ), 'button', 'upgrade' );

?>

</div>

</form>

<?php

	return false;

}