upload.php

   1 <?php
   2
   3 require_once __DIR__ . '/db.php';
   4 require_once __DIR__ . '/auth.php';
   5 require_once __DIR__ . '/uuid.php';
   6
   7 if ($_SERVER['REQUEST_METHOD'] === 'POST') {
   8   $user = check_auth();
   9   $db = get_db();
  10   $db->exec('BEGIN TRANSACTION');
  11   $post_id = uuid_v4();
  12   $post_time = time();
  13   $images = $_FILES['image'];
  14   $num_files = count($images['name']);
  15   for ($i = 0; $i < $num_files; $i++) {
  16     $name = $images['name'][$i];
  17     $mime_type = $images['type'][$i];
  18     $tmp_file = $images['tmp_name'][$i];
  19     $error = $images['error'][$i];
  20     $size = $images['size'][$i];
  21     // strip EXIF
  22     $img = new Imagick($tmp_file);
  23     // keep ICC for quality
  24     $profiles = $img->getImageProfiles("icc", true);
  25     $img->stripImage();
  26     if(!empty($profiles)) {
  27       $img->profileImage('icc', $profiles['icc']);
  28     }
  29
  30     $file_b64 = base64_encode($img->getImageBlob());
  31     $pic_id = uuid_v4();
  32     $upload_stmt = $db->prepare('INSERT into pics values (:id, :post_id, :mime_type, :b64_bytes)');
  33     $upload_stmt->bindValue(':id', $pic_id);
  34     $upload_stmt->bindValue(':post_id', $post_id);
  35     $upload_stmt->bindValue(':mime_type', $mime_type);
  36     $upload_stmt->bindValue(':b64_bytes', $file_b64);
  37     $upload_stmt->execute();
  38
  39     echo "<img src='data:{$mime_type};base64,{$file_b64}' alt='$name'/>";
  40   }
  41
  42   $post_stmt = $db->prepare('INSERT into posts VALUES(:id, :user, :time)');
  43   $post_stmt->bindValue(':id', $post_id);
  44   $post_stmt->bindValue(':user', $user);
  45   $post_stmt->bindValue(':time', $post_time);
  46   $post_stmt->execute();
  47
  48   $db->exec('COMMIT');
  49 } else {
  50 echo '
  51   <html>
  52     <body>
  53       <form enctype="multipart/form-data" method="POST" action="upload.php">
  54         <label>Pick Images:<input type="file" id="upload" name="image[]" multiple>
  55         </input></label>
  56         <br/>
  57         <textarea id="comment" name="comment">Title/comment your post</textarea>
  58         <br/>
  59         <input type="submit" value="Upload"/>
  60       </form>
  61     </body>
  62   </html>
  63 ';
  64 }