Revision [16173]

This is an old revision of FileexportAction made by DomBonj on 2007-02-21 16:51:15.

 

Fileexport Action

See also:
works with:
  • Wikka 1.1.6.2
NOT included in any Wikka version
Last edited by DomBonj:
v0.90: first upload
Wed, 21 Feb 2007 16:51 UTC [diff]

This is the development page for the Fileexport action.

Installation


Code


actions/fileexport.php


<?php                                        
#
# Displays a link to download a selection of the wiki content as a single HTML or XML file
#
# @package      Actions
# @name         fileexport
#
# @authors      DomBonj
# @version      0.9
# @input        Parameters =  [html=('html'|'xml')] [sort=('tag'|'type'|'cnt')] [opts=['o']['p']] [cats='Category1','Category2'..]
#               default values: type='html', sort='tag'
#
# @uses         Wakka::Href()
#

if (!defined('FE_DOWNLOAD_LINK_TITLE')) define('FE_DOWNLOAD_LINK_TITLE', 'Download');
if (!defined('FE_DOWNLOAD_LINK_TEXT')) define('FE_DOWNLOAD_LINK_TEXT', 'Download %s file');

if (!function_exists('FEerror'))
{
  function FEerror ($msg) {
      return ("<em class='error'>$msg</em><br />");
  }
}

  $output = "";
  if (isset($vars['cats'])) $categories = preg_split("/\s*,\s*/i", $vars['cats']);
  if ( (isset($vars['opts']) && (!preg_match("/^[op]{1,2}$/i", $vars['opts'])))
      || (isset($vars['type']) && (!preg_match("/^(html|xml)$/i", $vars['type'])))
      || (isset($vars['sort']) && (!preg_match("/^(time|tag|title)$/i", $vars['sort']))))
      $output .= FEerror("Usage: fileexport [own=\"Y|N\"] [sys=\"Y|N\"] [sort=\"tag|time|title\"] [cats=\"<i>category list</i>\"]");
  else {
    $type = (isset($vars['type']) ? strtolower($vars['type']) : 'html');
    $query = "&type=$type";
    $query .= "&own=". (preg_match("/[o]/i", $vars['opts']) ? 'n' : 'y');
    $query .= "&sys=". (preg_match("/[p]/i", $vars['opts']) ? 'y' : 'n');
    $query .= "&sort=". ((isset($vars['sort'])) ? $vars['sort'] : 'tag');
    $query .= "&cats=";
    $first = true;
    if ($categories) {
      foreach ($categories as $lacat) {
        // sanitize categories
        if (preg_match("/^(Category[A-Z0-9ÄÖÜ][A-Za-z0-9ÄÖÜßäöü]*)\s*$/", $lacat, $matches)) {
            if ($first) {
                $query .= $matches[1];
                $first = false;
            }
            else $query .= "_".$lacat;
        }
      }
    }
    $output .= '<a href="'. $this->Href('fileexport.xml'.$query, $this->tag, ''). '" title="'.FE_DOWNLOAD_LINK_TITLE.'">'. sprintf(FE_DOWNLOAD_LINK_TEXT, strtoupper($type)). '</a>';
  }
  echo $output;
?>


handlers/page/filexport.xml.php


<?php                                        
#
# Exports part of the wiki content as a single HTML or XML file
#
# @package      Handlers
# @name         fileexport
#
# @authors      DomBonj
# @version      0.9
#
# @uses         Wakka::Format()
# @uses         Wakka::GetConfigValue()
# @uses         Wakka::GetUserName()
# @uses         Wakka::HasAccess()
# @uses         Wakka::LoadAll()
# @uses         Wakka::LoadPage()
# @uses         Wakka::SetPage()
#

// i18n
if (!defined('FE_TABLE_OF_CONTENTS')) define ('FE_TABLE_OF_CONTENTS', "Table of contents");

if (!function_exists('FEerror'))
{
  function FEerror ($msg) {
      return ("<em class='error'>$msg</em><br />");
  }
     
  function FEhtml ($this, $pages, $csspath="", $keyorder, $title="") {
      $header = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>\n".
          "<html><head><meta http-equiv='Content-Type' content='text/html; charset=iso-8859-1' />\n<style type='text/css'>";
      if ($fcss = fopen($csspath, 'r')) {
        if (!($stylesheet = file_get_contents($csspath)))
            $stylesheet = "";
      } else $stylesheet = "";
      $header .= $stylesheet."\n</style><title>".$this->GetConfigValue("wakka_name")."</title></head><body>\n";
      $toc = "";
      $filename = $this->GetConfigValue("wakka_name")."_".date("Ymd");
      foreach ($keyorder as $tag => $val) {
          $toc .= "<li><a href='#{$pages[$tag]['i']}'>{$pages[$tag]['title']}</a></li>\n";
          $output .= $pages[$tag]['body']."<hr />\n";
      }
      $output = "$header<div class='page'><h2>".FE_TABLE_OF_CONTENTS."</h2><ul>$toc</ul><hr />$output</div></body></html>";

      header("Content-disposition: attachment; filename=$filename.html");
      header('Content-Type: text/html; charset=ISO-8859-1');
      header('Expires: 0');
      header('Pragma: no-cache');
//      header('Cache-Control: private');
      print $output;
      exit();
  }

  function FExml ($this, $pages, $keyorder, $title="") {
      $filename = $this->GetConfigValue("wakka_name")."_".date("Ymd");
      $output = '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?><wikka>';
      foreach ($keyorder as $tag => $val) {
          $mytab = $pages[$tag];
          $output .= "<page><tag>{$tag}</tag>\n<owner>{$mytab['owner']}</owner><lastchange>{$mytab['lastchange']}</lastchange>\n";
          foreach (explode (' ', $mytab['cats']) as $mycat) {
              if ($mycat) $output .= "<category>$mycat</category>";
          }
          $output .= "<title>".utf8_encode(htmlspecialchars($mytab['title'], ENT_COMPAT, "UTF-8"))."</title>\n";
          $output .= "<raw_content>".utf8_encode(htmlspecialchars($mytab['raw'], ENT_COMPAT, "UTF-8")).".</raw_content>\n";
          $output .= "<rendered_content>".utf8_encode(htmlspecialchars($mytab['body'], ENT_COMPAT, "UTF-8")).".</rendered_content>";
          $output .= "</page>\n";
      }
      $output .= "</wikka>";

      header("Content-disposition: attachment; filename=$filename.xml");
      header('Content-Type: text/xml; charset=UTF-8');
      header('Expires: 0');
      header('Pragma: no-cache');
      print $output;
      exit();
  }
}

  $pages = array();
  $error_msg = "";
  if (isset($_GET['cats'])) $categories = preg_split("/_/i", $_GET['cats']);
  if ((isset($_GET['own']) && !(preg_match("/^[YN]$/i", $_GET['own'])))
      || (isset($_GET['sys']) && (!preg_match("/^[YN]$/i", $_GET['sys'])))
      || (isset($_GET['type']) && (!preg_match("/^(html|xml)$/i", $_GET['type'])))
      || (isset($_GET['sort']) && (!preg_match("/^(time|tag|title)$/i", $_GET['sort']))))
      $error_msg .= FEerror("illegal request string, unable to export");
  else {
    $save_page = $this->page;
    $save_tag = $this->tag;
    $csspath = "css/".$this->GetConfigValue("stylesheet");
    $root_url = $_SERVER['SERVER_NAME'].$_SERVER['PHP_SELF'];
    $pagecnt = 0;

    $query = "SELECT * FROM ".$this->config['table_prefix']."pages WHERE ((latest = 'Y')";
    if ('y' == strtolower($_GET['own']))
        $query .= " AND (owner = '".$this->GetUserName()."')";
    if ('y' != strtolower($_GET['sys']))
        $query .= " AND (owner <> '(Public)')";
    $query .= ")";
    $rows = $this->LoadAll($query);
    foreach ($rows as $row) {
        $itscats = array();
        if ($categories[0]) {
           $match = false;
           foreach ($categories as $mycat) {
                if (preg_match("/$mycat/i", $row['body'])) {
                    $match = true;
                    $itscats[] = $mycat;
                }
            }
        } else {
           $match = true;
        // sanitize categories
            preg_match_all("/(Category[A-Z0-9ÄÖÜ][A-Za-z0-9ÄÖÜßäöü]*)\b/", $row['body'], $matches);
            foreach ($matches[1] as $mycat)
                $itscats[] = $mycat;
        }
        if ($match && $this->HasAccess("read", $row['tag'])) {
            // this page is to be exported: pretend your are this page
            $this->SetPage($this->LoadPage($row['tag']));
            // prevent recursive calling
            $page = preg_replace('/\{\{\s*fileexport\b(.*?)\}\}/', "[fileexport action, $1]", $this->page['body']);
            // fill 'pages' associative array
            $pages[$row['tag']]['i'] = $pagecnt;
            $pages[$row['tag']]['raw'] = $this->page['body'];
            $pages[$row['tag']]['cats'] = implode (' ', $itscats);
            $pages[$row['tag']]['lastchange'] = $this->page['time'];
            $pages[$row['tag']]['ts'] = strtotime($this->page['time']);
            $pages[$row['tag']]['owner'] = $this->page['owner'];
            $pages[$row['tag']]['body'] = "<a name='$pagecnt'></a>".$this->Format($page, 'wakka');
            $pagecnt++;
            // set title for Table of Contents
            $title = "";
            if (preg_match('/^(={2,6})([^=\n]+)\1/', $this->page['body'], $matches)) {
                $title = $matches[2];
                $formatting_tags = array("**", "//", "__", "##", "''", "++", "#%", "@@", "\"\"");
                $title = str_replace($formatting_tags, "", $title);
                $title = strip_tags($this->Format($title));
            }
            $pages[$row['tag']]['title'] = ($title) ? $title : $this->page['tag'];
        }
    }
    foreach ($pages as $tag => $mytab) {
        // prepare mapping table for translation of intra-wiki links
        $pat[] = "/".preg_quote('http://'.$root_url, '/')."\?wakka=".$tag."([^\w\.\/])/";
        $rep[] = "#".$pages[$tag]['i']."$1";
    }
    foreach ($pages as $tag => $mytab) {
        // preserve intra-wiki links
        $pages[$tag]['body'] = preg_replace($pat, $rep, $mytab['body']);
    }
    // restore original values
    $this->tag = $save_tag;
    $this->page = $save_page;

    // now, sort the associative array's keys
    if (isset($_GET['sort'])) {
        if ($_GET['sort'] == 'time') { $field = 'ts'; $fn = 'arsort'; }
        else if ($_GET['sort'] == 'title') { $field = 'title'; $fn= 'asort'; }
    }
    // default case: sort on tag
    if (!$field) { $field = 'tag'; $fn = 'asort'; }
    $keyorder = array();
    foreach ($pages as $tag => $mytab) {
        $keyorder[$tag] = ($field == 'tag') ? strtolower($tag) : strtolower($mytab[$field]);
    }
    // do the actual sorting
    $fn($keyorder);

    if (!isset($_GET['type']) || $_GET['type']=='html')
        FEhtml ($this, $pages, $csspath, $keyorder);
    else if ($_GET['type']=='xml')
        FExml ($this, $pages, $keyorder);
  }
// display error message, if any
  if ($error_msg) {
      header("Content-type: text/xml");
      $xml = "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n";
      $xml .= '<?xml-stylesheet href="' . $this->GetConfigValue("base_url") .'/css/xml.css" type="text/css"?' .">\n";
      $xml .= '<item><title>Error message</title>';
      $xml .= '<description>'. $error_msg. '</description></item>';
      print $xml;
  }
?>



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