Ticket #75: 0000075-templates.php

<?php
require_once('../wp-includes/wp-l10n.php');

$title = __("Template &amp; file editing");

function add_magic_quotes($array) {
        foreach ($array as $k => $v) {
                if (is_array($v)) {
                        $array[$k] = add_magic_quotes($v);
                } else {
                        $array[$k] = addslashes($v);
                }
        }
        return $array;
} 

function validate_file($file) {
        if ('..' == substr($file,0,2))
                die (__('Sorry, can&#8217;t edit files with ".." in the name. If you are trying to edit a file in your WordPress home directory, you can just type the name of the file in.'));
        
        if (':' == substr($file,1,1))
                die (__('Sorry, can&#8217;t call files with their real path.'));

        if ('/' == substr($file,0,1))
                $file = '.' . $file;
        
        if (stristr($file, 'config') && $user_level < 10)
                die(__('<p>You do not have sufficient permissions to edit config files for this blog.</p>'));
        
        $file = stripslashes($file);
        $file = str_replace('../', '', $file);

    return $file;
}

if (!get_magic_quotes_gpc()) {
        $_GET    = add_magic_quotes($_GET);
        $_POST   = add_magic_quotes($_POST);
        $_COOKIE = add_magic_quotes($_COOKIE);
}

$wpvarstoreset = array('action','standalone','redirect','profile','error','warning','a','file');
for ($i=0; $i<count($wpvarstoreset); $i += 1) {
        $wpvar = $wpvarstoreset[$i];
        if (!isset($$wpvar)) {
                if (empty($_POST["$wpvar"])) {
                        if (empty($_GET["$wpvar"])) {
                                $$wpvar = '';
                        } else {
                                $$wpvar = $_GET["$wpvar"];
                        }
                } else {
                        $$wpvar = $_POST["$wpvar"];
                }
        }
}

switch($action) {

case 'update':

        $standalone = 1;
        require_once("admin-header.php");

        if ($user_level < 5) {
                die(__('<p>You have do not have sufficient permissions to edit templates for this blog.</p>'));
        }

        $newcontent = stripslashes($_POST['newcontent']);
        $file = $_POST['file'];
    $file = validate_file($file);
        $real_file = '../' . $file;
    if (is_writeable($real_file)) {
        $f = fopen($real_file, 'w+');
        fwrite($f, $newcontent);
        fclose($f);
        header("Location: templates.php?file=$file&a=te");
    } else {
        header("Location: templates.php?file=$file");
    }

        exit();

break;

default:

        require_once('admin-header.php');

        if ($user_level <= 5) {
                die(__('<p>You have do not have sufficient permissions to edit templates for this blog.</p>'));
        }

        if ('' == $file) {
                if ('' != get_settings('blogfilename')) {
                        $file = get_settings('blogfilename');
                } else {
                        $file = 'index.php';
                }
        }

    $home = get_settings('home');
    if ($home != '' && ('index.php' == $file || get_settings('blogfilename') == $file)) {
        $home_root = str_replace('http://', '', $home);
        $home_root = preg_replace('|([^/]*)(.*)|i', '$2', $home_root);
        $real_file = $_SERVER['DOCUMENT_ROOT'] . $home_root . '/' . $file;
    } else {
        $file = validate_file($file);
        $real_file = '../' . $file;
    }
        
        if (!is_file($real_file))
                $error = 1;

        if ((substr($file,0,2) == 'wp') and (substr($file,-4,4) == '.php') and ($file != 'wp.php'))
                $warning = __(' &#8212; this is a WordPress file, be careful when editing it!');
        
        if (!$error) {
                $f = fopen($real_file, 'r');
                $content = fread($f, filesize($real_file));
                $content = htmlspecialchars($content);
//              $content = str_replace("</textarea","&lt;/textarea",$content);
        }

        ?>
<?php if (isset($_GET['a'])) : ?>
 <div class="updated"><p><?php _e('File edited successfully.') ?></p></div>
<?php endif; ?>
 <div class="wrap"> 
  <?php
        echo "<p>" . sprintf(__('Editing <strong>%s</strong>'), $file) . " $warning</p>";
        
        if (!$error) {
        ?> 
  <form name="template" action="templates.php" method="post"> 
     <textarea cols="80" rows="21" style="width:98%; font-family: 'Courier New', Courier, monopace; font-size:small;" name="newcontent" tabindex="1"><?php echo $content ?></textarea> 
     <input type="hidden" name="action" value="update" /> 
     <input type="hidden" name="file" value="<?php echo $file ?>" /> 
     <p class="submit">
     <?php
                if (is_writeable($real_file)) {
                        echo "<input type='submit' name='submit' value='Update File &raquo;' tabindex='2' />";
                } else {
                        echo "<input type='button' name='oops' value='" . __('(You cannot update that file/template: must make it writable, e.g. CHMOD 666)') ."' tabindex='2' />";
                }
                ?> 
</p>
   </form> 
  <?php
        } else {
                echo '<div class="error"><p>' . __('Oops, no such file exists! Double check the name and try again, merci.') . '</p></div>';
        }
        ?> 
</div> 
<div class="wrap">
  <p><?php _e('To edit a file, type its name here. You can edit any file <a href="http://wiki.wordpress.org/index.php/MakeWritable" title="Read more about making files writable">writable by the server</a>, e.g. CHMOD 666.') ?></p> 
  <form name="file" action="templates.php" method="get"> 
    <input type="text" name="file" /> 
    <input type="submit" name="submit"  value="<?php _e('Edit file &raquo;') ?>" /> 
  </form>
  <p><?php _e('Common files: (click to edit)') ?></p>
  <ul>
    <li><a href="templates.php?file=index.php"><?php _e('Main Index') ?> </a></li>
    <li><a href="templates.php?file=wp-comments.php">Comments</a></li>
    <li><a href="templates.php?file=wp-comments-popup.php"><?php _e('Popup comments') ?> </a></li>
    <li><a href="templates.php?file=.htaccess"><?php _e('.htaccess (for rewrite rules)') ?></a></li>
    <li><a href="templates.php?file=my-hacks.php"><?php _e('my-hacks.php (legacy hacks support)') ?></a></li>
    </ul>
<?php
$plugins_dir = @ dir(ABSPATH . 'wp-content/plugins');
if ($plugins_dir) {
        while(($file = $plugins_dir->read()) !== false) {
          if ( !preg_match('|^\.+$|', $file) && preg_match('|\.php$|', $file) ) 
                $plugin_files[] = $file;
        }
}
if ($plugins_dir || $plugin_files) :
?>
  <p>Plugin files:</p>
  <ul>
<?php foreach($plugin_files as $plugin_file) : ?>
        <li><a href="templates.php?file=wp-content/plugins/<?php echo $plugin_file; ?>"><?php echo $plugin_file; ?></a></li>
<?php endforeach; ?>
  </ul>
<?php endif; ?>
  <p><?php _e('Note: of course, you can also edit the files/templates in your text editor of choice and upload them. This online editor is only meant to be used when you don&#8217;t have access to a text editor or FTP client.') ?></p>
</div> 
<?php

break;
}

include("admin-footer.php") ?>