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 // set these variables
   9 $n_per_line = 6; // number of pics in each line of the table
  10 $thumb_size = 300; // size of thumbnails
  11 $med_size = 1024; // size of "medium" image
  12
  13
  14 $show_dir = "/net/iron/export/quickshow/";
  15 $this_url = "http://".$_SERVER["SERVER_NAME"].$_SERVER["PHP_SELF"];
  16
  17
  18
  19 if(isset($_REQUEST["showpic"])) {
  20         // show the pic requested...
  21         if(preg_match("/.*\/+.*/", $_REQUEST["showpic"])) {
  22                 header("Status: 403 i dont think so");
  23                 error_log("throwing 403");
  24                 return;
  25         }
  26
  27         $afile = "$show_dir/".$_REQUEST["showpic"];
  28         if(file_exists($afile)) {
  29                 header('Content-Type: image/jpeg');
  30                 echo file_get_contents($afile);
  31         } else {
  32                 header("Status: 404 Not Found");
  33         }
  34 } else if(isset($_REQUEST["fullpic"])) {
  35         $file = $_REQUEST["fullpic"];
  36         if(preg_match("/.*\/+.*/", $_REQUEST["fullpic"])) {
  37                 error_log("throwing 403");
  38                 header("Status: 403 i dont think so");
  39                 return;
  40         }
  41         $afile = "$show_dir/".$_REQUEST["fullpic"];
  42         if(file_exists($afile)) {
  43                 echo "<html><body><h1>Fullsize picture $file</h1><a href=\"$this_url\"><img width=\"100%\" src=\"$this_url?showpic=$file\"></body></html>";
  44         } else {
  45                 header("Status: 403 i dont think so");
  46                 return;
  47         }
  48         return;
  49 } else if(isset($_REQUEST["medpic"])) {
  50         $file = $_REQUEST["medpic"];
  51         if(preg_match("/.*\/+.*/", $_REQUEST["medpic"])) {
  52                 error_log("throwing 403");
  53                 header("Status: 403 i dont think so");
  54                 return;
  55         }
  56         $afile = "$show_dir/".$_REQUEST["medpic"];
  57         if(file_exists($afile)) {
  58                 echo "<html><body><h1>Picture $file</h1><a href=\"$this_url?fullpic=$file\"><img src=\"$this_url?showmedpic=$file\"></body></html>";
  59         } else {
  60                 header("Status: 403 i dont think so");
  61                 return;
  62         }
  63         return;
  64 } else if(isset($_REQUEST["showmedpic"])) {
  65         if(preg_match("/.*\/+.*/", $_REQUEST["showmedpic"])) {
  66                 error_log("throwing 403");
  67                 header("Status: 403 i dont think so");
  68                 return;
  69         }
  70         $afile = "$show_dir/".$_REQUEST["showmedpic"];
  71         if(file_exists($afile)) {
  72                 header('Content-Type: image/jpeg');
  73                 $src = imagecreatefromjpeg($afile);
  74                 list($width, $height) = getimagesize($afile);
  75
  76                 if($width <= $med_size && $height <= $med_size) {
  77                         // just pump out the pic
  78                         error_log("pic pump");
  79                         header('Content-Type: image/jpeg');
  80                         echo file_get_contents($afile);
  81                         return;
  82                 }
  83
  84                 // else, resize it
  85                 if($width > $height) {
  86                         $nw = $med_size;
  87                         $nh = (int)($height/($width/$med_size));
  88                 } else {
  89                         $nh = $med_size;
  90                         $nw = (int)($width/($height/$med_size));
  91
  92                 }
  93
  94                 /*
  95                  * 2000
  96                 * 1800
  97                 * $nw = 200
  98                 * $mul = $height/$width/200
  99                 */
 100
 101                 // error_log("neww = $nw, $nh");
 102                 $thumb = imagecreatetruecolor($nw, $nh);
 103
 104                 imagecopyresized($thumb, $src, 0, 0, 0, 0, $nw, $nh, $width, $height);
 105                 imagejpeg($thumb);
 106         } else {
 107                 header("Status: 404 Not Found");
 108         }
 109 } else if(isset($_REQUEST["showtmp"])) {
 110         // nothing yet
 111         if(preg_match("/.*\/+.*/", $_REQUEST["showtmp"])) {
 112                 error_log("throwing 403");
 113                 header("Status: 403 i dont think so");
 114                 return;
 115         }
 116         $afile = "$show_dir/".$_REQUEST["showtmp"];
 117         if(file_exists($afile)) {
 118                 header('Content-Type: image/jpeg');
 119                 $src = imagecreatefromjpeg($afile);
 120                 list($width, $height) = getimagesize($afile);
 121
 122                 if($width > $height) {
 123                         $nw = $thumb_size;
 124                         $nh = (int)($height/($width/$thumb_size));
 125                 } else {
 126                         $nh = $thumb_size;
 127                         $nw = (int)($width/($height/$thumb_size));
 128
 129                 }
 130
 131                 /*
 132                  * 2000
 133                  * 1800
 134                  * $nw = 200
 135                  * $mul = $height/$width/200
 136                  */
 137
 138                 // error_log("neww = $nw, $nh");
 139                 $thumb = imagecreatetruecolor($nw, $nh);
 140
 141                 imagecopyresized($thumb, $src, 0, 0, 0, 0, $nw, $nh, $width, $height);
 142                 imagejpeg($thumb);
 143         } else {
 144                 header("Status: 404 Not Found");
 145         }
 146         return;
 147 } else {
 148
 149         // show a grid of images
 150         ?>
 151 <html>
 152 <body>
 153 <h1>Temp Show</h1>
 154 <table>
 155 <?php
 156
 157         // echo "<pre>";
 158         // print_r($_SERVER);
 159         // echo "</pre>";
 160         $i = 0;
 161
 162         $dh = opendir($show_dir);
 163         while (($file = readdir($dh)) !== false) {
 164                 if(preg_match("/.*\.[jJ][pP][gG]$/", $file)) {
 165                         if($i == 0) {
 166                                 echo "<tr>";
 167                         }
 168
 169                         echo "<td><a href=\"$this_url?medpic=$file\"><img src=\"$this_url?showtmp=$file\"></a></td>";
 170
 171                         if($i == ($n_per_line-1)) {
 172                                 echo "</tr>";
 173                                 $i = 0;
 174                         } else {
 175                                 $i++;
 176                         }
 177                 }
 178         }
 179
 180
 181 ?>
 182 </table>
 183 </body>
 184 </html>
 185 <?php
 186
 187 }
 188 ?>