mods/_standard/social/groups/edit.php

   1 <?php
   2 /****************************************************************/
   3 /* ATutor                                                                                                               */
   4 /****************************************************************/
   5 /* Copyright (c) 2002-2009                                                                              */
   6 /* Inclusive Design Institute                                   */
   7 /* http://atutor.ca                                                                                             */
   8 /*                                                              */
   9 /* This program is free software. You can redistribute it and/or*/
  10 /* modify it under the terms of the GNU General Public License  */
  11 /* as published by the Free Software Foundation.                                */
  12 /****************************************************************/
  13 // $Id$
  14 $_user_location = 'public';
  15
  16 define('AT_INCLUDE_PATH', '../../../../include/');
  17 require(AT_INCLUDE_PATH.'vitals.inc.php');
  18 require(AT_SOCIAL_INCLUDE.'constants.inc.php');
  19 require(AT_SOCIAL_INCLUDE.'friends.inc.php');
  20 require(AT_SOCIAL_INCLUDE.'classes/SocialGroups/SocialGroup.class.php');
  21 require(AT_SOCIAL_INCLUDE.'classes/SocialGroups/SocialGroups.class.php');
  22 $_custom_css = $_base_path . AT_SOCIAL_BASENAME . 'module.css'; // use a custom stylesheet
  23
  24
  25 // Get social group class
  26 $social_groups = new SocialGroups();
  27
  28 // Get this group
  29 $id = intval($_REQUEST['id']);  //make sure $_GET and $_POST don't overlap the use of 'id'
  30 $group = new SocialGroup($id);
  31
  32 //validate if this user is the administrator of the group
  33 if ($group->getUser() != $_SESSION['member_id']){
  34         $msg->addError('CANT_EDIT_GROUP');
  35         header('Location: index.php');
  36         exit;
  37 }
  38
  39 //TODO
  40 //validate the group_admin is indeed a group member
  41
  42 function resize_image($src, $dest, $src_h, $src_w, $dest_h, $dest_w, $type) {
  43         $thumbnail_img = imagecreatetruecolor($dest_w, $dest_h);
  44
  45         if ($type == 'gif') {
  46                 $source = imagecreatefromgif($src);
  47         } else if ($type == 'jpg') {
  48                 $source = imagecreatefromjpeg($src);
  49         } else {
  50                 $source = imagecreatefrompng($src);
  51         }
  52
  53         imagecopyresampled($thumbnail_img, $source, 0, 0, 0, 0, $dest_w, $dest_h, $src_w, $src_h);
  54
  55         if ($type == 'gif') {
  56                 imagegif($thumbnail_img, $dest);
  57         } else if ($type == 'jpg') {
  58                 imagejpeg($thumbnail_img, $dest, 75);
  59         } else {
  60                 imagepng($thumbnail_img, $dest, 7);
  61         }
  62 }
  63
  64 // check if GD is installed
  65 if (!extension_loaded('gd')) {
  66         require(AT_INCLUDE_PATH.'header.inc.php');
  67         $msg->printInfos('FEATURE_NOT_AVAILABLE');
  68         require(AT_INCLUDE_PATH.'footer.inc.php');
  69         exit;
  70 }
  71
  72
  73 // Update group
  74 if (isset($_POST['save'])){
  75         //handles group logo
  76         if ($_FILES['logo']['name']!=''){
  77                 $gd_info = gd_info();
  78                 $supported_images = array();
  79                 if ($gd_info['GIF Create Support']) {
  80                         $supported_images[] = 'gif';
  81                 }
  82                 if ($gd_info['JPG Support'] || $gd_info['JPEG Support']) {
  83                         $supported_images[] = 'jpg';
  84                 }
  85                 if ($gd_info['PNG Support']) {
  86                         $supported_images[] = 'png';
  87                 }
  88
  89                 if (!$supported_images) {
  90                         require(AT_INCLUDE_PATH.'header.inc.php');
  91                         $msg->printInfos('FEATURE_NOT_AVAILABLE');
  92                         require(AT_INCLUDE_PATH.'footer.inc.php');
  93                         exit;
  94                 }
  95
  96                 // check if this is a supported file type
  97                 $filename   = $stripslashes($_FILES['logo']['name']);
  98                 $path_parts = pathinfo($filename);
  99                 $extension  = strtolower($path_parts['extension']);
 100                 $image_attributes = getimagesize($_FILES['logo']['tmp_name']);
 101
 102                 if ($extension == 'jpeg') {
 103                         $extension = 'jpg';
 104                 }
 105
 106                 if (!in_array($extension, $supported_images)) {
 107                         $msg->addError(array('FILE_ILLEGAL', $extension));
 108                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
 109                         exit;
 110                 } else if ($image_attributes[2] > IMAGETYPE_PNG) {
 111                         $msg->addError(array('FILE_ILLEGAL', $extension));
 112                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
 113                         exit;
 114                 }
 115
 116                 // make sure under max file size
 117                 if ($_FILES['logo']['size'] > $_config['prof_pic_max_file_size']) {
 118                         $msg->addError('FILE_MAX_SIZE');
 119                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
 120                         exit;
 121                 }
 122
 123                 // delete the old images (if any)
 124                 foreach ($supported_images as $ext) {
 125                         if (file_exists(AT_CONTENT_DIR.'social/'. $id.'.'.$ext)) {
 126                                 unlink(AT_CONTENT_DIR.'social/'. $id.'.'.$ext);
 127                         }
 128                 }
 129
 130                 $new_filename = $id . '.' . $extension;
 131                 $original_img = AT_CONTENT_DIR.'social/temp_'. $new_filename;
 132                 $thumbnail_img= AT_CONTENT_DIR.'social/'. $new_filename;
 133
 134                 // only want the resized logo. (for now)
 135                 if (!move_uploaded_file($_FILES['logo']['tmp_name'], $original_img)) {
 136                         $msg->addError('CANNOT_OVERWRITE_FILE');
 137                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
 138                         exit;
 139                 }
 140
 141                 // resize the original and save it at $thumbnail_file
 142                 $width  = $image_attributes[0];
 143                 $height = $image_attributes[1];
 144
 145                 if ($width > $height && $width>100) {
 146                         $thumbnail_height = intval(100 * $height / $width);
 147                         $thumbnail_width  = 100;
 148
 149                         resize_image($original_img, $thumbnail_img, $height, $width, $thumbnail_height, $thumbnail_width, $extension);
 150                 } else if ($width <= $height && $height > 100) {
 151                         $thumbnail_height= 100;
 152                         $thumbnail_width = intval(100 * $width / $height);
 153                         resize_image($original_img, $thumbnail_img, $height, $width, $thumbnail_height, $thumbnail_width, $extension);
 154                 } else {
 155                         // no resizing, just copy the image.
 156                         // it's too small to resize.
 157                         copy($original_img, $thumbnail_img);
 158                 }
 159                 // clean the original
 160                 unlink($original_img);
 161         }
 162
 163
 164         //check if fields are empty
 165         if ($_POST['group_name']==''){
 166                 $missing_fields[] = _AT('group_name');
 167         } elseif (intval($_POST['group_type'])<=0){
 168                 $missing_fields[] = _('group_type');
 169         }
 170         if ($missing_fields) {
 171                 $missing_fields = implode(', ', $missing_fields);
 172                 $msg->addError(array('EMPTY_FIELDS', $missing_fields));
 173         } else {
 174                 $isSucceded = $social_groups->updateGroup($id, $_POST['group_admin'], $_POST['group_type'], $_POST['group_name'], $_POST['description'], $new_filename, $_POST['group_privacy']);
 175
 176                 if($isSucceded){
 177                         $msg->addFeedback('SOCIAL_GROUP_UPDATED');
 178                         header('Location: '.url_rewrite(AT_SOCIAL_BASENAME.'groups/index.php', AT_PRETTY_URL_HEADER));
 179                         exit;
 180                 } else {
 181                         //Something went bad in the backend, contact admin?
 182                         $msg->addError('GROUP_EDIT_FAILED');
 183                 }
 184         }
 185 } elseif (isset($_POST['cancel'])){
 186         $msg->addFeedback('CANCELLED');
 187         header('Location: '.url_rewrite(AT_SOCIAL_BASENAME.'groups/index.php', AT_PRETTY_URL_HEADER));
 188         exit;
 189 }
 190
 191 //Display
 192 include(AT_INCLUDE_PATH.'header.inc.php');
 193 $savant->display('social/pubmenu.tmpl.php');
 194 $savant->assign('group_obj', $group);
 195 $savant->assign('group_types', $social_groups->getAllGroupType());
 196 $savant->display('social/sgroup_edit.tmpl.php');
 197 include(AT_INCLUDE_PATH.'footer.inc.php');
 198 ?>