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 $files = explode("\n", file_get_contents('viewtext.txt'));
  21
  22 foreach($files as $idx => $line) {
  23   if ($line != '') {
  24     $parts = explode('|', $line);
  25     $name = $parts[0];
  26     $label = '';
  27     if (count($parts) > 1) $label = " - " . $parts[1];
  28     if ($file != '') $files[$idx] = $name;
  29     else {
  30       $files[$idx] = "<input type='radio' name='file' value='$name'/> <a href=\"?file=$name\">$name</a>$label<br/>";
  31       if (count($files) > ($idx+2) && $files[$idx+1] == '') {
  32         $files[$idx] .= "<br/>";
  33       }
  34     }
  35   }
  36 }
  37
  38 if ($file == '') {
  39   if ($title == '') $title = "Text Viewer";
  40 } else {
  41   if (!in_array($file, $files)) {
  42     echo "Thought you could access some random file, didn't you. Not!";
  43     return;
  44   }
  45
  46   $text = htmlspecialchars(file_get_contents($file));
  47
  48   // Do search, if requested
  49   if ($search != '') {
  50     $i = 1;
  51     // Escape special chars in the search string
  52     $search = preg_replace("=([/\\\\^$.[\\]|()?*+{}])=", '\\\\$1', $search);
  53     // Now replace instances of the search string
  54     $text = preg_replace_callback('/' . $search . '/i', "searchBody", $text);
  55     // Make the last match loop around
  56     $text = str_replace('href="#' . $i . '">', 'href="#1">', $text);
  57   }
  58
  59   // Add line numbers, if requested
  60   if ($numbers != '') {
  61     $lines = explode("\n", $text);
  62     $cnt = count($lines);
  63     $digits = strlen($cnt);
  64     $format = "%0" . $digits . 'd';
  65     $i = 1;
  66     foreach ($lines as $idx => $line) {
  67       if ($i < $cnt || $line != '') {
  68         $lines[$idx] = '<a name="line' . $i . '" href="#line' . $i . '">' .
  69           sprintf($format, $i) . '</a> ' . $line;
  70       }
  71       $i++;
  72     }
  73     $text = implode("\n", $lines);
  74   }
  75
  76   // Add line breaks
  77   $text = str_replace("\n", "<br>\n", $text);
  78
  79   // Make spaces non-breaking
  80   $text = str_replace(" ", "&nbsp;", $text);
  81
  82   // And change the non-duplicated ones back to spaces
  83   $text = preg_replace("/([^;])&nbsp;([^&])/", "$1 $2", $text);
  84
  85   // Once more to get the remaining &nbsp; after single chars
  86   $text = preg_replace("/([^;])&nbsp;([^&])/", "$1 $2", $text);
  87 }
  88
  89 function searchBody($match) {
  90   global $i;
  91   return '<a name="' . $i . '" href="#' . ++$i . '"><b>' . $match[0] . '</b></a>';
  92 }
  93
  94 ?>
  95 <html>
  96 <head>
  97 <title><?php echo htmlspecialchars($title); ?></title>
  98 </head>
  99 <body>
 100 <?php
 101 if ($file != '') {
 102 ?>
 103 <div style="font-family: courier">
 104 <?php echo $text; ?>
 105 </div>
 106 <?php
 107 } else {
 108   echo "You may view the following files.<br>Click on a file name or click a radio button and click one of the buttons below the list.<p>\n";
 109   echo "<form action='#1' method='get'>\n";
 110   foreach ($files as $line) echo $line;
 111   echo "<p>Search selected file for: <input type='text' name='search'> <input type='submit' name='Go' value='Go'/>\n";
 112   echo "<br>View selected file with line numbers? <input type='submit' name='numbers' value='Yes'>\n";
 113   echo "</form>\n";
 114  }
 115 ?>
 116 </body>
 117 </html>
 118
 119 <?php
 120
 121 // Copyright 2008 Bill St. Clair
 122 //
 123 // Licensed under the Apache License, Version 2.0 (the "License");
 124 // you may not use this file except in compliance with the License.
 125 // You may obtain a copy of the License at
 126 //
 127 //     http://www.apache.org/licenses/LICENSE-2.0
 128 //
 129 // Unless required by applicable law or agreed to in writing, software
 130 // distributed under the License is distributed on an "AS IS" BASIS,
 131 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 132 // See the License for the specific language governing permissions
 133 // and limitations under the License.
 134
 135 ?>