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                 }
  41
  42                 $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
  43
  44                 if ($avatar) {
  45                         common_element('img', array('src' => $avatar->url,
  46                                                                                 'class' => 'avatar profile',
  47                                                                                 'width' => AVATAR_PROFILE_SIZE,
  48                                                                                 'height' => AVATAR_PROFILE_SIZE));
  49                 }
  50
  51                 common_element_start('form', array('enctype' => 'multipart/form-data',
  52                                                                                    'method' => 'POST',
  53                                                                                    'id' => 'avatar',
  54                                                                                    'action' =>
  55                                                                                    common_local_url('avatar')));
  56                 common_element('input', array('name' => 'MAX_FILE_SIZE',
  57                                                                           'type' => 'hidden',
  58                                                                           'id' => 'MAX_FILE_SIZE',
  59                                                                           'value' => MAX_AVATAR_SIZE));
  60                 common_element('input', array('name' => 'avatarfile',
  61                                                                           'type' => 'file',
  62                                                                           'id' => 'avatarfile'));
  63                 common_element('input', array('name' => 'submit',
  64                                                                           'type' => 'submit',
  65                                                                           'id' => 'submit'),
  66                                            _t('Upload'));
  67                 common_element_end('form');
  68         }
  69
  70         function handle_post() {
  71
  72                 switch ($_FILES['avatarfile']['error']) {
  73                  case UPLOAD_ERR_OK: # success, jump out
  74                         break;
  75                  case UPLOAD_ERR_INI_SIZE:
  76                  case UPLOAD_ERR_FORM_SIZE:
  77                         $this->show_form(_t('That file is too big.'));
  78                         return;
  79                  case UPLOAD_ERR_PARTIAL:
  80                         @unlink($_FILES['avatarfile']['tmp_name']);
  81                         $this->show_form(_t('Partial upload.'));
  82                         return;
  83                  default:
  84                         $this->show_form(_t('System error uploading file.'));
  85                         return;
  86                 }
  87
  88                 $info = @getimagesize($_FILES['avatarfile']['tmp_name']);
  89
  90                 if (!$info) {
  91                         @unlink($_FILES['avatarfile']['tmp_name']);
  92                         $this->show_form(_t('Not an image or corrupt file.'));
  93                         return;
  94                 }
  95
  96                 switch ($info[2]) {
  97                  case IMAGETYPE_GIF:
  98                  case IMAGETYPE_JPEG:
  99                  case IMAGETYPE_PNG:
 100                         break;
 101                  default:
 102                         $this->show_form(_t('Unsupported image file format.'));
 103                         return;
 104                 }
 105
 106                 $user = common_current_user();
 107
 108                 $filename = common_avatar_filename($user, image_type_to_extension($info[2]));
 109                 $filepath = common_avatar_path($filename);
 110
 111                 if (!move_uploaded_file($_FILES['avatarfile']['tmp_name'], $filepath)) {
 112                         @unlink($_FILES['avatarfile']['tmp_name']);
 113                         $this->show_form(_t('System error uploading file.'));
 114                         return;
 115                 }
 116
 117                 $avatar = DB_DataObject::factory('avatar');
 118
 119                 $avatar->profile_id = $user->id;
 120                 $avatar->width = $info[0];
 121                 $avatar->height = $info[1];
 122                 $avatar->mediatype = image_type_to_mime_type($info[2]);
 123                 $avatar->filename = $filename;
 124                 $avatar->original = true;
 125                 $avatar->url = common_avatar_url($filename);
 126                 $avatar->created = date(DATE_RFC822); # current time
 127                 foreach (array(AVATAR_PROFILE_SIZE, AVATAR_STREAM_SIZE, AVATAR_MINI_SIZE) as $size) {
 128                         $scaled[] = $this->scale_avatar($user, $avatar, $size);
 129                 }
 130
 131                 # XXX: start a transaction here
 132
 133                 if (!$this->delete_old_avatars($user)) {
 134                         @unlink($filepath);
 135                         common_server_error(_t('Error deleting old avatars.'));
 136                         return;
 137                 }
 138
 139                 if (!$avatar->insert()) {
 140                         @unlink($filepath);
 141                         common_server_error(_t('Error inserting avatar.'));
 142                         return;
 143                 }
 144
 145                 foreach ($scaled as $s) {
 146                         if (!$s->insert()) {
 147                                 common_server_error(_t('Error inserting scaled avatar.'));
 148                                 return;
 149                         }
 150                 }
 151
 152                 # XXX: end transaction here
 153
 154                 $this->show_form(_t('Avatar updated.'), true);
 155         }
 156
 157         function scale_avatar($user, $avatar, $size) {
 158                 $image_s = imagecreatetruecolor($size, $size);
 159                 $image_a = $this->avatar_to_image($avatar);
 160
 161                 $square = min($avatar->width, $avatar->height);
 162
 163                 imagecopyresampled($image_s, $image_a, 0, 0, 0, 0,
 164                                                    $size, $size, $square, $square);
 165
 166                 $ext = ($avatar->mediattype == 'image/jpeg') ? ".jpg" : ".png";
 167
 168                 $filename = common_avatar_filename($user, $ext, $size);
 169
 170                 if ($avatar->mediatype == 'image/jpeg') {
 171                         imagejpeg($image_s, common_avatar_path($filename));
 172                 } else {
 173                         imagepng($image_s, common_avatar_path($filename));
 174                 }
 175
 176                 $scaled = DB_DataObject::factory('avatar');
 177                 $scaled->profile_id = $avatar->profile_id;
 178                 $scaled->width = $size;
 179                 $scaled->height = $size;
 180                 $scaled->original = false;
 181                 $scaled->mediatype = ($avatar->mediattype == 'image/jpeg') ? 'image/jpeg' : 'image/png';
 182                 $scaled->filename = $filename;
 183                 $scaled->url = common_avatar_url($filename);
 184                 $scaled->created = date(DATE_RFC822); # current time
 185
 186                 return $scaled;
 187         }
 188
 189         function avatar_to_image($avatar) {
 190                 $filepath = common_avatar_path($avatar->filename);
 191                 if ($avatar->mediatype == 'image/gif') {
 192                         return imagecreatefromgif($filepath);
 193                 } else if ($avatar->mediatype == 'image/jpeg') {
 194                         return imagecreatefromjpeg($filepath);
 195                 } else if ($avatar->mediatype == 'image/png') {
 196                         return imagecreatefrompng($filepath);
 197                 } else {
 198                         common_server_error(_t('Unsupported image type:') . $avatar->mediatype);
 199                         return NULL;
 200                 }
 201         }
 202
 203         function delete_old_avatars($user) {
 204                 $avatar = DB_DataObject::factory('avatar');
 205                 $avatar->profile_id = $user->id;
 206                 $avatar->find();
 207                 while ($avatar->fetch()) {
 208                         $avatar->delete();
 209                 }
 210         }
 211 }
 212