moodle_wikidump.php

很棒的在线教学系统

<?php // $Id: moodle_wikidump.php,v 1.12.4.2 2008/02/19 11:04:48 skodak Exp $
# ToDo: Binary Content
#       Binary Linking
/*
   Allows to download a tarball including all WikiPages and images that
   currently are in the database.
*/


#-- text
$ewiki_t["en"]["WIKIEXPORTCOMMENT"] = "Here you can tailor your WikiDump to your needs.  When you are ready, click the \"Download\" button.";
$ewiki_t["en"]["DOWNLOAD_ARCHIVE"] = "Download";

#define("EWIKI_WIKIDUMP_ARCNAME", "WikiDump_");
#define("EWIKI_WIKIDUMP_DEFAULTTYPE", "TAR");
#define("EWIKI_WIKIDUMP_MAXLEVEL", 1);
define('EWIKI_DUMP_FILENAME_REGEX',"/\W\+/");

#-- glue
#if((function_exists(gzcompress) && EWIKI_WIKIDUMP_DEFAULTTYPE=="ZIP") || EWIKI_WIKIDUMP_DEFAULTTYPE=="TAR"){
  $ewiki_plugins["page"]["WikiExport"] = "moodle_ewiki_page_wiki_dump";
  #$ewiki_plugins["action"]['wikidump'] = "moodle_ewiki_page_wiki_dump";
#}

$ewiki_t["c"]["EWIKIDUMPCSS"] = '
  <style  TYPE="text/css">
  <!--
  body {
    background-color:#eeeeff;
    padding:2px;
  }    
  
  H2 {
    background:#000000;
    color:#ffffff;
    border:1px solid #000000;
  }
  -->
  </style>
  ';  
  

function moodle_ewiki_page_wiki_dump($id=0, $data=0, $action=0) {
  global $userid, $groupid, $cm, $wikipage, $wiki, $course, $CFG;
  #-- return legacy page
  $cont = true;
  if (!empty($_REQUEST["wikiexport"])) {
    $binaries=$_REQUEST["exportbinaries"];
    if(!$wiki->ewikiacceptbinary) {
      $binaries=0;
    }
    $exportformats=$_REQUEST["exportformats"];
    if($wiki->htmlmode==2) {
      $exportformats=1;
    }
    $cont=ewiki_page_wiki_dump_send($binaries, 
                                $exportformats, 
                                $_REQUEST["withvirtualpages"], 
                                $_REQUEST["exportdestinations"]);
  }  
  if($cont===false) {
     die;
  }
    
  $url = ewiki_script("", "WikiExport");
  $ret  = ewiki_make_title($id, $id, 2);
  $ret .= ($cont&&$cont!==true)?$cont."<br /><br />\n":"";
  $ret .= get_string("wikiexportcomment","wiki");
  // removing name="form" from the following form as it does not validate
  // and is not referenced. MDL-7861
  $ret .= "<br /><br />\n".
    '<FORM method="post" action="view.php">'."\n".
    "<div class=\"wikiexportbox\">\n".
    '<INPUT type="hidden" name="page" value="WikiExport" />'."\n".
    '<INPUT type="hidden" name="userid" value="'.$userid.'" />'."\n".
    '<INPUT type="hidden" name="groupid" value="'.$groupid.'" />'."\n".
    '<INPUT type="hidden" name="id" value="'.$cm->id.'" />'."\n".
    '<INPUT type="hidden" name="wikipage" value="'.$wikipage.'" />'."\n";
    
  
  // Export binaries too ?
  if(!$wiki->ewikiacceptbinary) {
    $ret.='<INPUT type="hidden" name="exportbinaries" value="0" />'.$exportdestinations[0]."\n";
  } else {
    $ret.='<INPUT type="hidden" name="exportbinaries" value="0" />'."\n";
  }
  $ret.="<TABLE cellpadding=\"5\">\n";
  if($wiki->ewikiacceptbinary) {
    $ret.="  <TR valign=\"top\">\n".
        '    <TD align="right">'.get_string("withbinaries","wiki").":</TD>\n".
        "    <TD>\n".
        '      <input type="checkbox" name="exportbinaries" value="1"'.($_REQUEST["exportbinaries"]==1?" checked":"")." />\n".
        "    </TD>\n".
        "  </TR>\n";
  }
  $ret.="  <TR valign=\"top\">\n".
      '    <TD align="right">'.get_string("withvirtualpages","wiki").":</TD>\n".
      "    <TD>\n".
      '      <input type="checkbox" name="withvirtualpages" value="1"'.($_REQUEST["withvirtualpages"]==1?" checked":"")." />\n".
      "    </TD>\n".
      "  </TR>\n";
  $exportformats=array( "0" => get_string("plaintext","wiki") , "1" => get_string("html","wiki"));
  /// Formats
  $ret.="  <TR valign=\"top\">\n".
        '    <TD align="right">'.get_string("exportformats","wiki").":</TD>\n".
        "    <TD>\n";
  if($wiki->htmlmode!=2) {
    $ret.= choose_from_menu($exportformats, "exportformats", $_REQUEST["exportformats"], "", "", "", true)."\n";
  } else {
    $ret.= '<INPUT type="hidden" name="exportformats" value="1" />'.
           get_string("html","wiki");
  }
  $ret.="    </TD>\n".
        "  </TR>\n";
  /// Destination
  $exportdestinations=array("0" => get_string("downloadaszip","wiki"));
  if(wiki_is_teacher($wiki)) {
    // Get Directory List
    $rawdirs = get_directory_list("$CFG->dataroot/$course->id", 'moddata', true, true, false);
    
    foreach ($rawdirs as $rawdir) {
      $exportdestinations[$rawdir] = get_string("moduledirectory","wiki").": ".$rawdir;
    }
  }
  
  $ret.="  <TR valign=\"top\">\n".
        '    <TD align="right">'.get_string("exportto","wiki").":</TD>\n".
        "    <TD>\n";
  if(count($exportdestinations)==1) {
    $ret.='<INPUT type="hidden" name="exportdestinations" value="0" />'.$exportdestinations[0]."\n";
  } else {
    $ret.=choose_from_menu($exportdestinations, "exportdestinations", $_REQUEST["exportdestinations"], "", "", "", true)."\n";
  }
  $ret.="    </TD>\n".
      "  </TR>\n".      
      "</TABLE>\n".
      '  <input type="submit" name="wikiexport" value= "'.get_string("export","wiki").'" />'."\n".
      "</div>\n";
      "</FORM>\n";
  return $ret;
}

function ewiki_page_wiki_dump_send($exportbinaries=0, $exportformats=0, $withvirtualpages=0, $exportdestinations=0) {
  global $ewiki_config, $wiki, $ewiki_plugins, $wiki_entry, $course, $CFG, $ewiki_t, $userid, $groupid;
  
  $filestozip=array();
  #-- disable protected email
  if (is_array($ewiki_plugins["link_url"])) {
      foreach($ewiki_plugins["link_url"] as $key => $linkplugin){
        if($linkplugin == "ewiki_email_protect_link"){
          unset($ewiki_plugins["link_url"][$key]);
        }
      }
  }
  
  /// HTML-Export
  if($exportformats==1) {
    #-- if exportformats is html
    $HTML_TEMPLATE = '<html>
      <head>'.$ewiki_t["c"]["EWIKIDUMPCSS"].'
      <title>$title</title>
      </head>
      <body bgcolor="#ffffff";>
      <div id="PageText">
      <h2>$title</h2>
      $content
      </div>
      </body>
      </html>';
  
    #-- reconfigure ewiki_format() to generate offline pages and files
    $html_ext = ".html";
    $ewiki_config["script"] = "%s$html_ext";
    $ewiki_config["script_binary"] = "%s";
  }
  
  // Export Virtual pages special
  $a_virtual = array_keys($ewiki_plugins["page"]);

  #-- get all pages / binary files
  $a_validpages = ewiki_valid_pages(1, $withvirtualpages);
  $a_pagelist = ewiki_sitemap_create($wiki_entry->pagename, $a_validpages, 100, 1);
  
  # Add linked binary files to pagelist
  foreach($a_pagelist as $key => $value) {
    if(is_array($a_validpages[$value]["refs"])){
      foreach($a_validpages[$value]["refs"] as $refs){
        if($a_validpages[$refs]["type"]=="image" || $a_validpages[$refs]["type"]=="file"){
          $a_pagelist[]=$refs;
        }
      }
    }
  }

  # Adjust links to binary files
  foreach($a_pagelist as $key => $value){
    if($a_validpages[$value]["type"]=="image"){
      $a_images[]=urlencode($value);
      $a_rimages[]=urlencode(preg_replace(EWIKI_DUMP_FILENAME_REGEX, "", $value));
      unset($a_validpages[$value]);
    } 
    if($a_validpages[$value]["type"]=="file") {
      $a_images[]=urlencode($value);
      $a_rimages[]=clean_filename(substr($value,strlen(EWIKI_IDF_INTERNAL)));
      $a_images[]=$value;
      $a_rimages[]=clean_filename(substr($value,strlen(EWIKI_IDF_INTERNAL)));
      unset($a_validpages[$value]);
    }
  }

  # Remove binaries from a_validpages and add to a_pagelist  
  foreach($a_validpages as $key => $value){
    if($a_validpages[$key]["type"]=="image" || $a_validpages[$key]["type"]=="file"){
      $a_pagelist[]=$key;
      unset($a_validpages[$key]);
    }    
  }  
  
  #print "<pre>"; print_r($a_validpages); print "</pre>";
  #print "<hr /><pre>"; print_r($a_pagelist); print "</pre>";

  $a_sitemap = ewiki_sitemap_create($wiki_entry->pagename, $a_validpages, 99, 0);
  if ($a_pagelist) {
    #-- create new zip file
    #if($arctype == "ZIP"){
    #  $archivename=EWIKI_WIKIDUMP_ARCNAME."$rootid.zip";
    #  $archive = new ewiki_virtual_zip();