show.php

   1 <?php
   2
   3 /* This is a very simple app
   4  * - you give it a directory where it'll look for jpg's and it'll give a quick index
   5  * of them along with clickable links to see the full thing
   6  */
   7
   8 #$show_dir = "/export/data/Pictures/showdir";
   9 $show_dir = "/home/paulr/lithium/data/Pictures/show";
  10 $n_per_line = 4;
  11 $this_url = "http://".$_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
  12
  13
  14 if(isset($_REQUEST["showpic"])) {
  15         // show the pic requested...
  16         if(preg_match("/.*\/+.*/", $_REQUEST["showpic"])) {
  17                 header("Status: 403 i dont think so");
  18                 error_log("throwing 403");
  19                 return;
  20         }
  21
  22         $afile = "$show_dir/".$_REQUEST["showpic"];
  23         if(file_exists($afile)) {
  24                 header('Content-Type: image/jpeg');
  25                 echo file_get_contents($afile);
  26         } else {
  27                 header("Status: 404 Not Found");
  28         }
  29 } else if(isset($_REQUEST["showtmp"])) {
  30         // nothing yet
  31         if(preg_match("/.*\/+.*/", $_REQUEST["showtmp"])) {
  32                 error_log("throwing 403");
  33                 header("Status: 403 i dont think so");
  34                 return;
  35         }
  36         $afile = "$show_dir/".$_REQUEST["showtmp"];
  37         if(file_exists($afile)) {
  38                 header('Content-Type: image/jpeg');
  39                 $src = imagecreatefromjpeg($afile);
  40                 list($width, $height) = getimagesize($afile);
  41
  42                 if($width > $height) {
  43                         $nw = 200;
  44                         $nh = (int)($height/($width/200));
  45                 } else {
  46                         $nh = 200;
  47                         $nw = (int)($width/($height/200));
  48
  49                 }
  50
  51                 /*
  52                  * 2000
  53                  * 1800
  54                  * $nw = 200
  55                  * $mul = $height/$width/200
  56                  */
  57
  58                 error_log("neww = $nw, $nh");
  59                 $thumb = imagecreatetruecolor($nw, $nh);
  60
  61                 imagecopyresized($thumb, $src, 0, 0, 0, 0, $nw, $nh, $width, $height);
  62                 imagejpeg($thumb);
  63         } else {
  64                 header("Status: 404 Not Found");
  65         }
  66         return;
  67 } else {
  68
  69         // show a grid of images
  70         ?>
  71 <html>
  72 <body>
  73 <h1>Temp Show</h1>
  74 <table>
  75 <?php
  76
  77         // echo "<pre>";
  78         // print_r($_SERVER);
  79         //echo "</pre>";
  80         $i = 0;
  81
  82         $dh = opendir($show_dir);
  83         while (($file = readdir($dh)) !== false) {
  84                 if(preg_match("/.*\.[jJ][pP][gG]$/", $file)) {
  85                         if($i == 0) {
  86                                 echo "<tr>";
  87                         }
  88
  89                         echo "<td><a href=\"$this_url?showpic=$file\"><img src=\"$this_url?showtmp=$file\"></a></td>";
  90
  91                         if($i == ($n_per_line-1)) {
  92                                 echo "</tr>";
  93                                 $i = 0;
  94                         } else {
  95                                 $i++;
  96                         }
  97                 }
  98         }
  99
 100
 101 ?>
 102 </table>
 103 </body>
 104 </html>
 105 <?php
 106
 107 }
 108 ?>