viewtext.php

   1 <?php
   2
   3   // Simple file viewer
   4   // Allows viewing of files with word wrap.
   5
   6 function mq($x) {
   7   if (get_magic_quotes_gpc()) return stripslashes($x);
   8   else return $x;
   9 }
  10
  11 $file = mq($_GET['file']);
  12 $title = mq($_GET['title']);
  13 $numbers = mq($_GET['numbers']);
  14 $search = mq($_GET['search']);
  15
  16 $file = trim($file);
  17
  18 if ($title == '') $title = $file;
  19
  20 $files = explode("\n", file_get_contents('viewtext.txt'));
  21
  22 if ($file == '') {
  23   foreach($files as $idx => $line) {
  24     if ($line != '') {
  25       $files[$idx] = "<li><a href=\"?file=$line\">$line</a></li>\n";
  26     }
  27   }
  28 } else {
  29
  30   if (!in_array($file, $files)) {
  31     echo "Thought you could access some random file, didn't you. Not!";
  32     return;
  33   }
  34
  35   $text = htmlspecialchars(file_get_contents($file));
  36
  37   // Do search, if requested
  38   if ($search != '') {
  39     $i = 1;
  40     // Escape special chars in the search string
  41     $search = preg_replace("=([/\\\\^$.[\\]|()?*+{}])=", '\\\\$1', $search);
  42     // Now replace instances of the search string
  43     $text = preg_replace_callback('/' . $search . '/i', "searchBody", $text);
  44     // Make the last match loop around
  45     $text = str_replace('href="#' . $i . '">', 'href="#1">', $text);
  46   }
  47
  48   // Add line numbers, if requested
  49   if ($numbers != '') {
  50     $lines = explode("\n", $text);
  51     $cnt = count($lines);
  52     $digits = strlen($cnt);
  53     $format = "%0" . $digits . 'd';
  54     $i = 1;
  55     foreach ($lines as $idx => $line) {
  56       if ($i < $cnt || $line != '') {
  57         $lines[$idx] = '<a name="line' . $i . '" href="#line' . $i . '">' .
  58           sprintf($format, $i) . '</a> ' . $line;
  59       }
  60       $i++;
  61     }
  62     $text = implode("\n", $lines);
  63   }
  64
  65   // Add line breaks
  66   $text = str_replace("\n", "<br>\n", $text);
  67
  68   // Make spaces non-breaking
  69   $text = str_replace(" ", "&nbsp;", $text);
  70
  71   // And change the non-duplicated ones back to spaces
  72   $text = preg_replace("/([^;])&nbsp;([^&])/", "$1 $2", $text);
  73
  74   // Once more to get the remaining &nbsp; after single chars
  75   $text = preg_replace("/([^;])&nbsp;([^&])/", "$1 $2", $text);
  76 }
  77
  78 function searchBody($match) {
  79   global $i;
  80   return '<a name="' . $i . '" href="#' . ++$i . '"><b>' . $match[0] . '</b></a>';
  81 }
  82
  83 ?>
  84 <html>
  85 <head>
  86 <title><? echo htmlspecialchars($title); ?></title>
  87 </head>
  88 <body>
  89 <?
  90 if ($file != '') {
  91 ?>
  92 <div style="font-family: courier">
  93 <? echo $text; ?>
  94 </div>
  95 <?
  96 } else {
  97   echo "You may view the following files:<p>\n<ul>\n";
  98   foreach ($files as $line) echo $line;
  99   echo "</ul>\n";
 100   echo '<p>Add "?search=foo" to search for foo' . "\n";
 101   echo '<br>Add "?numbers=yes" to add line numbers' . "\n";
 102  }
 103 ?>
 104 </body>
 105 </html>
 106
 107 <?
 108
 109 // Copyright 2008 Bill St. Clair
 110 //
 111 // Licensed under the Apache License, Version 2.0 (the "License");
 112 // you may not use this file except in compliance with the License.
 113 // You may obtain a copy of the License at
 114 //
 115 //     http://www.apache.org/licenses/LICENSE-2.0
 116 //
 117 // Unless required by applicable law or agreed to in writing, software
 118 // distributed under the License is distributed on an "AS IS" BASIS,
 119 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 120 // See the License for the specific language governing permissions
 121 // and limitations under the License.
 122
 123 ?>