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["medpic"])) {
  35         $file = $_REQUEST["medpic"];
  36         if(preg_match("/.*\/+.*/", $_REQUEST["medpic"])) {
  37                 error_log("throwing 403");
  38                 header("Status: 403 i dont think so");
  39                 return;
  40         }
  41         $afile = "$show_dir/".$_REQUEST["medpic"];
  42         if(file_exists($afile)) {
  43                 echo "<html><body><h1>Picture $file</h1><a href=\"$this_url?showpic=$file\"><img src=\"$this_url?showmedpic=$file\"></body></html>";
  44         } else {
  45                 header("Status: 403 i dont think so");
  46                 return;
  47         }
  48 } else if(isset($_REQUEST["showmedpic"])) {
  49         if(preg_match("/.*\/+.*/", $_REQUEST["showmedpic"])) {
  50                 error_log("throwing 403");
  51                 header("Status: 403 i dont think so");
  52                 return;
  53         }
  54         $afile = "$show_dir/".$_REQUEST["showmedpic"];
  55         if(file_exists($afile)) {
  56                 header('Content-Type: image/jpeg');
  57                 $src = imagecreatefromjpeg($afile);
  58                 list($width, $height) = getimagesize($afile);
  59
  60                 if($width <= $med_size && $height <= $med_size) {
  61                         // just pump out the pic
  62                         error_log("pic pump");
  63                         header('Content-Type: image/jpeg');
  64                         echo file_get_contents($afile);
  65                         return;
  66                 }
  67
  68                 // else, resize it
  69                 if($width > $height) {
  70                         $nw = $med_size;
  71                         $nh = (int)($height/($width/$med_size));
  72                 } else {
  73                         $nh = $med_size;
  74                         $nw = (int)($width/($height/$med_size));
  75
  76                 }
  77
  78                 /*
  79                  * 2000
  80                 * 1800
  81                 * $nw = 200
  82                 * $mul = $height/$width/200
  83                 */
  84
  85                 // error_log("neww = $nw, $nh");
  86                 $thumb = imagecreatetruecolor($nw, $nh);
  87
  88                 imagecopyresized($thumb, $src, 0, 0, 0, 0, $nw, $nh, $width, $height);
  89                 imagejpeg($thumb);
  90         } else {
  91                 header("Status: 404 Not Found");
  92         }
  93 } else if(isset($_REQUEST["showtmp"])) {
  94         // nothing yet
  95         if(preg_match("/.*\/+.*/", $_REQUEST["showtmp"])) {
  96                 error_log("throwing 403");
  97                 header("Status: 403 i dont think so");
  98                 return;
  99         }
 100         $afile = "$show_dir/".$_REQUEST["showtmp"];
 101         if(file_exists($afile)) {
 102                 header('Content-Type: image/jpeg');
 103                 $src = imagecreatefromjpeg($afile);
 104                 list($width, $height) = getimagesize($afile);
 105
 106                 if($width > $height) {
 107                         $nw = $thumb_size;
 108                         $nh = (int)($height/($width/$thumb_size));
 109                 } else {
 110                         $nh = $thumb_size;
 111                         $nw = (int)($width/($height/$thumb_size));
 112
 113                 }
 114
 115                 /*
 116                  * 2000
 117                  * 1800
 118                  * $nw = 200
 119                  * $mul = $height/$width/200
 120                  */
 121
 122                 // error_log("neww = $nw, $nh");
 123                 $thumb = imagecreatetruecolor($nw, $nh);
 124
 125                 imagecopyresized($thumb, $src, 0, 0, 0, 0, $nw, $nh, $width, $height);
 126                 imagejpeg($thumb);
 127         } else {
 128                 header("Status: 404 Not Found");
 129         }
 130         return;
 131 } else {
 132
 133         // show a grid of images
 134         ?>
 135 <html>
 136 <body>
 137 <h1>Temp Show</h1>
 138 <table>
 139 <?php
 140
 141         // echo "<pre>";
 142         // print_r($_SERVER);
 143         // echo "</pre>";
 144         $i = 0;
 145
 146         $dh = opendir($show_dir);
 147         while (($file = readdir($dh)) !== false) {
 148                 if(preg_match("/.*\.[jJ][pP][gG]$/", $file)) {
 149                         if($i == 0) {
 150                                 echo "<tr>";
 151                         }
 152
 153                         echo "<td><a href=\"$this_url?medpic=$file\"><img src=\"$this_url?showtmp=$file\"></a></td>";
 154
 155                         if($i == ($n_per_line-1)) {
 156                                 echo "</tr>";
 157                                 $i = 0;
 158                         } else {
 159                                 $i++;
 160                         }
 161                 }
 162         }
 163
 164
 165 ?>
 166 </table>
 167 </body>
 168 </html>
 169 <?php
 170
 171 }
 172 ?>