includes/SpecialBooksources.php

   1 <?php
   2
   3 # ISBNs in wiki pages will create links to this page, with
   4 # the ISBN passed in via the query string.
   5
   6 function wfSpecialBooksources( $par )
   7 {
   8         global $wgRequest;
   9
  10         $isbn = $par;
  11         if( empty( $par ) ) {
  12                 $isbn = $wgRequest->getVal( 'isbn' );
  13         }
  14         $isbn = preg_replace( '/[^0-9X]/', '', $isbn );
  15
  16         $bsl = new BookSourceList( $isbn );
  17         $bsl->show();
  18 }
  19
  20 class BookSourceList {
  21         var $mIsbn;
  22
  23         function BookSourceList( $isbn ) {
  24                 $this->mIsbn = $isbn;
  25         }
  26
  27         function show() {
  28                 global $wgOut;
  29
  30                 $wgOut->setPagetitle( wfMsg( "booksources" ) );
  31                 if( empty( $this->mIsbn ) ) {
  32                         $this->askForm();
  33                 } else {
  34                         $this->showList();
  35                 }
  36         }
  37
  38         function showList() {
  39                 global $wgOut, $wgUser, $wgLang;
  40                 $fname = "BookSourceList::showList()";
  41
  42                 # First, see if we have a custom list setup in
  43                 # [[Wikipedia:Book sources]] or equivalent.
  44                 $bstitle = Title::makeTitle( NS_WIKIPEDIA, wfMsg( "booksources" ) );
  45                 $dbr =& wfGetDB( DB_SLAVE );
  46                 $bstext = $dbr->selectField( 'cur', 'cur_text', $bstitle->curCond(), $fname );
  47                 if( $bstext ) {
  48                         $bstext = str_replace( "MAGICNUMBER", $this->mIsbn, $bstext );
  49                         $wgOut->addWikiText( $bstext );
  50                         return;
  51                 }
  52
  53                 # Otherwise, use the list of links in the default Language.php file.
  54                 $s = wfMsg( "booksourcetext" ) . "<ul>\n";
  55                 $bs = $wgLang->getBookstoreList() ;
  56                 $bsn = array_keys ( $bs ) ;
  57                 foreach ( $bsn as $name ) {
  58                         $adr = $bs[$name] ;
  59                         if ( ! $this->mIsbn ) {
  60                                 $adr = explode( ":" , $adr , 2 );
  61                                 $adr = explode( "/" , $adr[1] );
  62                                 $a = "";
  63                                 while ( $a == "" ) {
  64                                         $a = array_shift( $adr );
  65                                 }
  66                                 $adr = "http://".$a ;
  67                         } else {
  68                                 $adr = str_replace ( "$1" , $this->mIsbn , $adr ) ;
  69                         }
  70                         $name = htmlspecialchars( $name );
  71                         $adr = htmlspecialchars( $adr );
  72                         $s .= "<li><a href=\"{$adr}\" class=\"external\">{$name}</a></li>\n" ;
  73                 }
  74                 $s .= "</ul>\n";
  75
  76                 $wgOut->addHTML( $s );
  77         }
  78
  79         function askForm() {
  80                 global $wgOut, $wgLang, $wgTitle;
  81                 $fname = "BookSourceList::askForm()";
  82
  83                 $action = $wgTitle->escapeLocalUrl();
  84                 $isbn = htmlspecialchars( wfMsg( "isbn" ) );
  85                 $go = htmlspecialchars( wfMsg( "go" ) );
  86                 $out = "<form action=\"$action\" method='post'>
  87                         $isbn: <input name='isbn' id='isbn' />
  88                         <input type='submit' value=\"$go\" />
  89                 </form>";
  90                 $wgOut->addHTML( $out );
  91         }
  92 }
  93
  94 ?>