docs/mods/_standard/social/groups/create.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 // Get social group class
  25 $social_groups = new SocialGroups();
  26
  27 //validate if this script is being run by the group admin
  28 //validate the group_admin is indeed a group member
  29 //TODO
  30 function resize_image($src, $dest, $src_h, $src_w, $dest_h, $dest_w, $type) {
  31         $thumbnail_img = imagecreatetruecolor($dest_w, $dest_h);
  32
  33         if ($type == 'gif') {
  34                 $source = imagecreatefromgif($src);
  35         } else if ($type == 'jpg') {
  36                 $source = imagecreatefromjpeg($src);
  37         } else {
  38                 $source = imagecreatefrompng($src);
  39         }
  40
  41         imagecopyresampled($thumbnail_img, $source, 0, 0, 0, 0, $dest_w, $dest_h, $src_w, $src_h);
  42
  43         if ($type == 'gif') {
  44                 imagegif($thumbnail_img, $dest);
  45         } else if ($type == 'jpg') {
  46                 imagejpeg($thumbnail_img, $dest, 75);
  47         } else {
  48                 imagepng($thumbnail_img, $dest, 7);
  49         }
  50 }
  51
  52 if (isset($_POST['create'])){
  53         //handles group logo
  54         if ($_FILES['logo']['name']!=''){
  55                 $gd_info = gd_info();
  56                 $supported_images = array();
  57                 if ($gd_info['GIF Create Support']) {
  58                         $supported_images[] = 'gif';
  59                 }
  60                 if ($gd_info['JPG Support'] || $gd_info['JPEG Support']) {
  61                         $supported_images[] = 'jpg';
  62                 }
  63                 if ($gd_info['PNG Support']) {
  64                         $supported_images[] = 'png';
  65                 }
  66
  67                 if (!$supported_images) {
  68                         require(AT_INCLUDE_PATH.'header.inc.php');
  69                         $msg->printInfos('FEATURE_NOT_AVAILABLE');
  70                         require(AT_INCLUDE_PATH.'footer.inc.php');
  71                         exit;
  72                 }
  73
  74                 // check if this is a supported file type
  75                 $filename   = $stripslashes($_FILES['logo']['name']);
  76                 $path_parts = pathinfo($filename);
  77                 $extension  = strtolower($path_parts['extension']);
  78                 $image_attributes = getimagesize($_FILES['logo']['tmp_name']);
  79
  80                 if ($extension == 'jpeg') {
  81                         $extension = 'jpg';
  82                 }
  83
  84                 if (!in_array($extension, $supported_images)) {
  85                         $msg->addError(array('FILE_ILLEGAL', $extension));
  86                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
  87                         exit;
  88                 } else if ($image_attributes[2] > IMAGETYPE_PNG) {
  89                         $msg->addError(array('FILE_ILLEGAL', $extension));
  90                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
  91                         exit;
  92                 }
  93
  94                 // make sure under max file size
  95                 if ($_FILES['logo']['size'] > $_config['prof_pic_max_file_size']) {
  96                         $msg->addError('FILE_MAX_SIZE');
  97                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
  98                         exit;
  99                 }
 100
 101                 // delete the old images (if any)
 102                 foreach ($supported_images as $ext) {
 103                         if (file_exists(AT_CONTENT_DIR.'social/'. $id.'.'.$ext)) {
 104                                 unlink(AT_CONTENT_DIR.'social/'. $id.'.'.$ext);
 105                         }
 106                 }
 107
 108                 $new_filename = 'no_id'. '.' . $extension;
 109                 $original_img = AT_CONTENT_DIR.'social/temp_'. $new_filename;
 110                 $thumbnail_img= AT_CONTENT_DIR.'social/'. $new_filename;
 111
 112                 // only want the resized logo. (for now)
 113                 if (!move_uploaded_file($_FILES['logo']['tmp_name'], $original_img)) {
 114                         $msg->addError('CANNOT_OVERWRITE_FILE');
 115                         header('Location: '.$_SERVER['PHP_SELF'].'?id='.$id);
 116                         exit;
 117                 }
 118
 119                 // resize the original and save it at $thumbnail_file
 120                 $width  = $image_attributes[0];
 121                 $height = $image_attributes[1];
 122
 123                 if ($width > $height && $width>100) {
 124                         $thumbnail_height = intval(100 * $height / $width);
 125                         $thumbnail_width  = 100;
 126
 127                         resize_image($original_img, $thumbnail_img, $height, $width, $thumbnail_height, $thumbnail_width, $extension);
 128                 } else if ($width <= $height && $height > 100) {
 129                         $thumbnail_height= 100;
 130                         $thumbnail_width = intval(100 * $width / $height);
 131                         resize_image($original_img, $thumbnail_img, $height, $width, $thumbnail_height, $thumbnail_width, $extension);
 132                 } else {
 133                         // no resizing, just copy the image.
 134                         // it's too small to resize.
 135                         copy($original_img, $thumbnail_img);
 136                 }
 137                 // clean the original
 138                 unlink($original_img);
 139         }
 140
 141         //check if fields are empty
 142         if ($_POST['group_name']==''){
 143                 $missing_fields[] = _AT('group_name');
 144         } elseif (intval($_POST['group_type'])<=0){
 145                 $missing_fields[] = _('group_type');
 146         }
 147         if ($missing_fields) {
 148                 $missing_fields = implode(', ', $missing_fields);
 149                 $msg->addError(array('EMPTY_FIELDS', $missing_fields));
 150         } else {
 151                 $group_id = $social_groups->addGroup($_POST['group_type'], $_POST['group_name'], $_POST['description'], $_POST['group_privacy']);
 152                 if($group_id){
 153                         //Add the logo in now that we have the group id. And rename the old one.
 154                         if ($thumbnail_img!=''){
 155                                 $new_group = new SocialGroup($group_id);
 156                                 $new_group->updateGroupLogo($group_id . '.' . $extension);
 157                                 $new_location = AT_CONTENT_DIR.'social/'. $group_id . '.' . $extension;
 158                                 copy($thumbnail_img, $new_location);
 159                                 unlink($thumbnail_img);
 160                         }
 161                         $msg->addFeedback('GROUP_CREATED');
 162                         header('Location: index.php');
 163                         exit;
 164                 } else {
 165                         //Something went bad in the backend, contact admin?
 166                         $msg->addError('GROUP_CREATION_FAILED');
 167                 }
 168         }
 169 }
 170
 171 //Display
 172 include(AT_INCLUDE_PATH.'header.inc.php');
 173 $savant->display('social/pubmenu.tmpl.php');
 174 $savant->assign('group_types', $social_groups->getAllGroupType());
 175 $savant->display('social/sgroup_edit.tmpl.php');
 176 include(AT_INCLUDE_PATH.'footer.inc.php');
 177 ?>