actions/avatar.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, Controlez-Vous, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 if (!defined('LACONICA')) { exit(1); }
  21
  22 class AvatarAction extends SettingsAction {
  23
  24         function show_form($msg=NULL, $success=false) {
  25                 common_show_header(_t('Avatar'));
  26                 $this->settings_menu();
  27                 $this->message($msg, $success);
  28
  29                 $user = common_current_user();
  30                 $profile = $user->getProfile();
  31                 $original = $profile->getOriginal();
  32
  33                 if ($original) {
  34                         common_element('img', array('src' => $original->url,
  35                                                                                 'class' => 'avatar original',
  36                                                                                 'width' => $original->width,
  37                                                                                 'height' => $original->height));
  38                 }
  39
  40                 $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
  41
  42                 if ($avatar) {
  43                         common_element('img', array('src' => $avatar->url,
  44                                                                                 'class' => 'avatar profile',
  45                                                                                 'width' => AVATAR_PROFILE_SIZE,
  46                                                                                 'height' => AVATAR_PROFILE_SIZE));
  47                 }
  48
  49                 common_start_element('form', array('enctype' => 'multipart/form-data',
  50                                                                                    'method' => 'POST',
  51                                                                                    'id' => 'avatar',
  52                                                                                    'action' =>
  53                                                                                    common_local_url('avatar')));
  54                 common_element('input', array('name' => 'MAX_FILE_SIZE',
  55                                                                           'type' => 'hidden',
  56                                                                           'id' => 'MAX_FILE_SIZE',
  57                                                                           'value' => MAX_AVATAR_SIZE));
  58                 common_element('input', array('name' => 'avatarfile',
  59                                                                           'type' => 'file',
  60                                                                           'id' => 'avatarfile'));
  61                 common_element('input', array('name' => 'submit',
  62                                                                           'type' => 'submit',
  63                                                                           'id' => 'submit'),
  64                                            _t('Upload'));
  65         }
  66
  67         function handle_post() {
  68
  69                 switch ($_FILES['avatarfile']['error']) {
  70                  case UPLOAD_ERR_OK: # success, jump out
  71                         break;
  72                  case UPLOAD_ERR_INI_SIZE:
  73                  case UPLOAD_ERR_FORM_SIZE:
  74                         $this->show_form(_t('That file is too big.'));
  75                         return;
  76                  case UPLOAD_ERR_PARTIAL:
  77                         @unlink($_FILES['avatarfile']['tmp_name']);
  78                         $this->show_form(_t('Partial upload.'));
  79                         return;
  80                  default:
  81                         $this->show_form(_t('System error uploading file.'));
  82                         return;
  83                 }
  84
  85                 $info = @getimagesize($_FILES['avatarfile']['tmp_name']);
  86
  87                 if (!$info) {
  88                         @unlink($_FILES['avatarfile']['tmp_name']);
  89                         $this->show_form(_t('Not an image or corrupt file.'));
  90                         return;
  91                 }
  92
  93                 switch ($info[2]) {
  94                  case IMAGETYPE_GIF:
  95                  case IMAGETYPE_JPEG:
  96                  case IMAGETYPE_PNG:
  97                         break;
  98                  default:
  99                         $this->show_form(_t('Unsupported image file format.'));
 100                         return;
 101                 }
 102
 103                 $user = common_current_user();
 104
 105                 $filename = common_avatar_filename($user, image_type_to_extension($info[2]));
 106                 $filepath = common_avatar_path($filename);
 107
 108                 if (!move_uploaded_file($_FILES['avatarfile']['tmp_name'], $filepath)) {
 109                         @unlink($_FILES['avatarfile']['tmp_name']);
 110                         $this->show_form(_t('System error uploading file.'));
 111                         return;
 112                 }
 113
 114                 $avatar = DB_DataObject::factory('avatar');
 115
 116                 $avatar->profile_id = $user->id;
 117                 $avatar->width = $info[0];
 118                 $avatar->height = $info[1];
 119                 $avatar->mediatype = image_type_to_mime_type($info[2]);
 120                 $avatar->filename = $filename;
 121                 $avatar->original = true;
 122                 $avatar->url = common_avatar_url($filename);
 123
 124                 foreach (array(AVATAR_PROFILE_SIZE, AVATAR_STREAM_SIZE, AVATAR_MINI_SIZE) as $size) {
 125                         $scaled[] = $this->scale_avatar($user, $avatar, $size);
 126                 }
 127
 128                 # XXX: start a transaction here
 129
 130                 if (!$this->delete_old_avatars($user)) {
 131                         @unlink($filepath);
 132                         common_server_error(_t('Error deleting old avatars.'));
 133                         return;
 134                 }
 135
 136                 if (!$avatar->insert()) {
 137                         @unlink($filepath);
 138                         common_server_error(_t('Error inserting avatar.'));
 139                         return;
 140                 }
 141
 142                 foreach ($scaled as $s) {
 143                         if (!$s->insert()) {
 144                                 common_server_error(_t('Error inserting scaled avatar.'));
 145                                 return;
 146                         }
 147                 }
 148
 149                 # XXX: end transaction here
 150
 151                 $this->show_form(_t('Avatar updated.'), true);
 152         }
 153
 154         function scale_avatar($user, $avatar, $size) {
 155                 $image_s = imagecreatetruecolor($size, $size);
 156                 $image_a = $this->avatar_to_image($avatar);
 157
 158                 $square = min($avatar->width, $avatar->height);
 159
 160                 imagecopyresampled($image_s, $image_a, 0, 0, 0, 0,
 161                                                    $size, $size, $square, $square);
 162
 163                 $ext = ($avatar->mediattype == 'image/jpeg') ? ".jpg" : ".png";
 164
 165                 $filename = common_avatar_filename($user, $ext, $size);
 166
 167                 if ($avatar->mediatype == 'image/jpeg') {
 168                         imagejpeg($image_s, common_avatar_path($filename));
 169                 } else {
 170                         imagepng($image_s, common_avatar_path($filename));
 171                 }
 172
 173                 $scaled = DB_DataObject::factory('avatar');
 174                 $scaled->profile_id = $avatar->profile_id;
 175                 $scaled->width = $size;
 176                 $scaled->height = $size;
 177                 $scaled->original = false;
 178                 $scaled->mediatype = ($avatar->mediattype == 'image/jpeg') ? 'image/jpeg' : 'image/png';
 179                 $scaled->filename = $filename;
 180                 $scaled->url = common_avatar_url($filename);
 181
 182                 return $scaled;
 183         }
 184
 185         function avatar_to_image($avatar) {
 186                 $filepath = common_avatar_path($avatar->filename);
 187                 if ($avatar->mediatype == 'image/gif') {
 188                         return imagecreatefromgif($filepath);
 189                 } else if ($avatar->mediatype == 'image/jpeg') {
 190                         return imagecreatefromjpeg($filepath);
 191                 } else if ($avatar->mediatype == 'image/png') {
 192                         return imagecreatefrompng($filepath);
 193                 } else {
 194                         common_server_error(_t('Unsupported image type:') . $avatar->mediatype);
 195                         return NULL;
 196                 }
 197         }
 198
 199         function delete_old_avatars($user) {
 200                 $avatar = DB_DataObject::factory('avatar');
 201                 $avatar->profile_id = $user->id;
 202                 $avatar->find();
 203                 while ($avatar->fetch()) {
 204                         $avatar->delete();
 205                 }
 206         }
 207 }
 208