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 require_once(INSTALLDIR.'/lib/settingsaction.php');
  23
  24 class AvatarAction extends SettingsAction {
  25
  26         function show_form($msg=NULL, $success=false) {
  27                 common_show_header(_t('Avatar'));
  28                 $this->settings_menu();
  29                 $this->message($msg, $success);
  30
  31                 $user = common_current_user();
  32                 $profile = $user->getProfile();
  33                 $original = $profile->getOriginal();
  34
  35                 if ($original) {
  36                         common_element('img', array('src' => $original->url,
  37                                                                                 'class' => 'avatar original',
  38                                                                                 'width' => $original->width,
  39                                                                                 'height' => $original->height,
  40                                                                                 'alt' => $user->nickname));
  41                 }
  42
  43                 $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
  44
  45                 if ($avatar) {
  46                         common_element('img', array('src' => $avatar->url,
  47                                                                                 'class' => 'avatar profile',
  48                                                                                 'width' => AVATAR_PROFILE_SIZE,
  49                                                                                 'height' => AVATAR_PROFILE_SIZE,
  50                                                                                 'alt' => $user->nickname));
  51                 }
  52
  53                 common_element_start('form', array('enctype' => 'multipart/form-data',
  54                                                                                    'method' => 'POST',
  55                                                                                    'id' => 'avatar',
  56                                                                                    'action' =>
  57                                                                                    common_local_url('avatar')));
  58                 common_element('input', array('name' => 'MAX_FILE_SIZE',
  59                                                                           'type' => 'hidden',
  60                                                                           'id' => 'MAX_FILE_SIZE',
  61                                                                           'value' => MAX_AVATAR_SIZE));
  62                 common_element('input', array('name' => 'avatarfile',
  63                                                                           'type' => 'file',
  64                                                                           'id' => 'avatarfile'));
  65                 common_element('input', array('name' => 'submit',
  66                                                                           'type' => 'submit',
  67                                                                           'id' => 'submit',
  68                                                                           'value' =>_t('Upload')));
  69                 common_element_end('form');
  70         }
  71
  72         function handle_post() {
  73
  74                 switch ($_FILES['avatarfile']['error']) {
  75                  case UPLOAD_ERR_OK: # success, jump out
  76                         break;
  77                  case UPLOAD_ERR_INI_SIZE:
  78                  case UPLOAD_ERR_FORM_SIZE:
  79                         $this->show_form(_t('That file is too big.'));
  80                         return;
  81                  case UPLOAD_ERR_PARTIAL:
  82                         @unlink($_FILES['avatarfile']['tmp_name']);
  83                         $this->show_form(_t('Partial upload.'));
  84                         return;
  85                  default:
  86                         $this->show_form(_t('System error uploading file.'));
  87                         return;
  88                 }
  89
  90                 $info = @getimagesize($_FILES['avatarfile']['tmp_name']);
  91
  92                 if (!$info) {
  93                         @unlink($_FILES['avatarfile']['tmp_name']);
  94                         $this->show_form(_t('Not an image or corrupt file.'));
  95                         return;
  96                 }
  97
  98                 switch ($info[2]) {
  99                  case IMAGETYPE_GIF:
 100                  case IMAGETYPE_JPEG:
 101                  case IMAGETYPE_PNG:
 102                         break;
 103                  default:
 104                         $this->show_form(_t('Unsupported image file format.'));
 105                         return;
 106                 }
 107
 108                 $user = common_current_user();
 109
 110                 $filename = common_avatar_filename($user, image_type_to_extension($info[2]));
 111                 $filepath = common_avatar_path($filename);
 112
 113                 if (!move_uploaded_file($_FILES['avatarfile']['tmp_name'], $filepath)) {
 114                         @unlink($_FILES['avatarfile']['tmp_name']);
 115                         $this->show_form(_t('System error uploading file.'));
 116                         return;
 117                 }
 118
 119                 $avatar = DB_DataObject::factory('avatar');
 120
 121                 $avatar->profile_id = $user->id;
 122                 $avatar->width = $info[0];
 123                 $avatar->height = $info[1];
 124                 $avatar->mediatype = image_type_to_mime_type($info[2]);
 125                 $avatar->filename = $filename;
 126                 $avatar->original = true;
 127                 $avatar->url = common_avatar_url($filename);
 128                 $avatar->created = DB_DataObject_Cast::dateTime(); # current time
 129
 130                 foreach (array(AVATAR_PROFILE_SIZE, AVATAR_STREAM_SIZE, AVATAR_MINI_SIZE) as $size) {
 131                         $scaled[] = $this->scale_avatar($user, $avatar, $size);
 132                 }
 133
 134                 # XXX: start a transaction here
 135
 136                 if (!$this->delete_old_avatars($user)) {
 137                         @unlink($filepath);
 138                         common_server_error(_t('Error deleting old avatars.'));
 139                         return;
 140                 }
 141
 142                 if (!$avatar->insert()) {
 143                         @unlink($filepath);
 144                         common_server_error(_t('Error inserting avatar.'));
 145                         return;
 146                 }
 147
 148                 foreach ($scaled as $s) {
 149                         if (!$s->insert()) {
 150                                 common_server_error(_t('Error inserting scaled avatar.'));
 151                                 return;
 152                         }
 153                 }
 154
 155                 # XXX: end transaction here
 156
 157                 $this->show_form(_t('Avatar updated.'), true);
 158         }
 159
 160         function scale_avatar($user, $avatar, $size) {
 161                 $image_s = imagecreatetruecolor($size, $size);
 162                 $image_a = $this->avatar_to_image($avatar);
 163
 164                 $square = min($avatar->width, $avatar->height);
 165
 166                 imagecopyresampled($image_s, $image_a, 0, 0, 0, 0,
 167                                                    $size, $size, $square, $square);
 168
 169                 $ext = ($avatar->mediattype == 'image/jpeg') ? ".jpg" : ".png";
 170
 171                 $filename = common_avatar_filename($user, $ext, $size);
 172
 173                 if ($avatar->mediatype == 'image/jpeg') {
 174                         imagejpeg($image_s, common_avatar_path($filename));
 175                 } else {
 176                         imagepng($image_s, common_avatar_path($filename));
 177                 }
 178
 179                 $scaled = DB_DataObject::factory('avatar');
 180                 $scaled->profile_id = $avatar->profile_id;
 181                 $scaled->width = $size;
 182                 $scaled->height = $size;
 183                 $scaled->original = false;
 184                 $scaled->mediatype = ($avatar->mediattype == 'image/jpeg') ? 'image/jpeg' : 'image/png';
 185                 $scaled->filename = $filename;
 186                 $scaled->url = common_avatar_url($filename);
 187                 $scaled->created = DB_DataObject_Cast::dateTime(); # current time
 188
 189                 return $scaled;
 190         }
 191
 192         function avatar_to_image($avatar) {
 193                 $filepath = common_avatar_path($avatar->filename);
 194                 if ($avatar->mediatype == 'image/gif') {
 195                         return imagecreatefromgif($filepath);
 196                 } else if ($avatar->mediatype == 'image/jpeg') {
 197                         return imagecreatefromjpeg($filepath);
 198                 } else if ($avatar->mediatype == 'image/png') {
 199                         return imagecreatefrompng($filepath);
 200                 } else {
 201                         common_server_error(_t('Unsupported image type:') . $avatar->mediatype);
 202                         return NULL;
 203                 }
 204         }
 205
 206         function delete_old_avatars($user) {
 207                 $avatar = DB_DataObject::factory('avatar');
 208                 $avatar->profile_id = $user->id;
 209                 $avatar->find();
 210                 while ($avatar->fetch()) {
 211                         unlink(common_avatar_path($avatar->filename));
 212                         $avatar->delete();
 213                 }
 214                 return true;
 215         }
 216 }
 217