mod/wall_upload.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  * Module for uploading a picture to the profile wall
  21  *
  22  * By default the picture will be stored in the photo album with the name Wall Photos.
  23  * You can specify a different album by adding an optional query string "album="
  24  * to the url
  25  *
  26  */
  27
  28 use Friendica\App;
  29 use Friendica\Core\Logger;
  30 use Friendica\Core\Session;
  31 use Friendica\Database\DBA;
  32 use Friendica\DI;
  33 use Friendica\Model\Photo;
  34 use Friendica\Model\User;
  35 use Friendica\Object\Image;
  36 use Friendica\Util\Images;
  37 use Friendica\Util\Strings;
  38
  39 function wall_upload_post(App $a, $desktopmode = true)
  40 {
  41         Logger::log("wall upload: starting new upload", Logger::DEBUG);
  42
  43         $r_json = (!empty($_GET['response']) && $_GET['response'] == 'json');
  44         $album = trim($_GET['album'] ?? '');
  45
  46         if ($a->argc > 1) {
  47                 if (empty($_FILES['media'])) {
  48                         $nick = $a->argv[1];
  49                         $user = DBA::selectFirst('owner-view', ['id', 'uid', 'nickname', 'page-flags'], ['nickname' => $nick, 'blocked' => false]);
  50                         if (!DBA::isResult($user)) {
  51                                 if ($r_json) {
  52                                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
  53                                         exit();
  54                                 }
  55                                 return;
  56                         }
  57                 } else {
  58                         $user_info = api_get_user($a);
  59                         $user = DBA::selectFirst('owner-view', ['id', 'uid', 'nickname', 'page-flags'], ['nickname' => $user_info['screen_name'], 'blocked' => false]);
  60                 }
  61         } else {
  62                 if ($r_json) {
  63                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
  64                         exit();
  65                 }
  66                 return;
  67         }
  68
  69         /*
  70          * Setup permissions structures
  71          */
  72         $can_post  = false;
  73         $visitor   = 0;
  74
  75         $page_owner_uid   = $user['uid'];
  76         $default_cid      = $user['id'];
  77         $page_owner_nick  = $user['nickname'];
  78         $community_page   = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
  79
  80         if ((local_user()) && (local_user() == $page_owner_uid)) {
  81                 $can_post = true;
  82         } elseif ($community_page && !empty(Session::getRemoteContactID($page_owner_uid))) {
  83                 $contact_id = Session::getRemoteContactID($page_owner_uid);
  84
  85                 $r = q("SELECT `uid` FROM `contact`
  86                         WHERE `blocked` = 0 AND `pending` = 0
  87                         AND `id` = %d AND `uid` = %d LIMIT 1",
  88                         intval($contact_id),
  89                         intval($page_owner_uid)
  90                 );
  91                 if (DBA::isResult($r)) {
  92                         $can_post = true;
  93                         $visitor = $contact_id;
  94                 }
  95         }
  96
  97         if (!$can_post) {
  98                 if ($r_json) {
  99                         echo json_encode(['error' => DI::l10n()->t('Permission denied.')]);
 100                         exit();
 101                 }
 102                 notice(DI::l10n()->t('Permission denied.'));
 103                 exit();
 104         }
 105
 106         if (empty($_FILES['userfile']) && empty($_FILES['media'])) {
 107                 if ($r_json) {
 108                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
 109                 }
 110                 exit();
 111         }
 112
 113         $src = '';
 114         $filename = '';
 115         $filesize = 0;
 116         $filetype = '';
 117         if (!empty($_FILES['userfile'])) {
 118                 $src      = $_FILES['userfile']['tmp_name'];
 119                 $filename = basename($_FILES['userfile']['name']);
 120                 $filesize = intval($_FILES['userfile']['size']);
 121                 $filetype = $_FILES['userfile']['type'];
 122
 123         } elseif (!empty($_FILES['media'])) {
 124                 if (!empty($_FILES['media']['tmp_name'])) {
 125                         if (is_array($_FILES['media']['tmp_name'])) {
 126                                 $src = $_FILES['media']['tmp_name'][0];
 127                         } else {
 128                                 $src = $_FILES['media']['tmp_name'];
 129                         }
 130                 }
 131
 132                 if (!empty($_FILES['media']['name'])) {
 133                         if (is_array($_FILES['media']['name'])) {
 134                                 $filename = basename($_FILES['media']['name'][0]);
 135                         } else {
 136                                 $filename = basename($_FILES['media']['name']);
 137                         }
 138                 }
 139
 140                 if (!empty($_FILES['media']['size'])) {
 141                         if (is_array($_FILES['media']['size'])) {
 142                                 $filesize = intval($_FILES['media']['size'][0]);
 143                         } else {
 144                                 $filesize = intval($_FILES['media']['size']);
 145                         }
 146                 }
 147
 148                 if (!empty($_FILES['media']['type'])) {
 149                         if (is_array($_FILES['media']['type'])) {
 150                                 $filetype = $_FILES['media']['type'][0];
 151                         } else {
 152                                 $filetype = $_FILES['media']['type'];
 153                         }
 154                 }
 155         }
 156
 157         if ($src == "") {
 158                 if ($r_json) {
 159                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
 160                         exit();
 161                 }
 162                 notice(DI::l10n()->t('Invalid request.'));
 163                 exit();
 164         }
 165
 166         $filetype = Images::getMimeTypeBySource($src, $filename, $filetype);
 167
 168         Logger::log("File upload src: " . $src . " - filename: " . $filename .
 169                 " - size: " . $filesize . " - type: " . $filetype, Logger::DEBUG);
 170
 171         $imagedata = @file_get_contents($src);
 172         $Image = new Image($imagedata, $filetype);
 173
 174         if (!$Image->isValid()) {
 175                 $msg = DI::l10n()->t('Unable to process image.');
 176                 if ($r_json) {
 177                         echo json_encode(['error' => $msg]);
 178                 } else {
 179                         echo  $msg. EOL;
 180                 }
 181                 @unlink($src);
 182                 exit();
 183         }
 184
 185         $Image->orient($src);
 186         @unlink($src);
 187
 188         $max_length = DI::config()->get('system', 'max_image_length');
 189         if (!$max_length) {
 190                 $max_length = MAX_IMAGE_LENGTH;
 191         }
 192         if ($max_length > 0) {
 193                 $Image->scaleDown($max_length);
 194                 $filesize = strlen($Image->asString());
 195                 Logger::log("File upload: Scaling picture to new size " . $max_length, Logger::DEBUG);
 196         }
 197
 198         $width = $Image->getWidth();
 199         $height = $Image->getHeight();
 200
 201         $maximagesize = DI::config()->get('system', 'maximagesize');
 202
 203         if (!empty($maximagesize) && ($filesize > $maximagesize)) {
 204                 // Scale down to multiples of 640 until the maximum size isn't exceeded anymore
 205                 foreach ([5120, 2560, 1280, 640] as $pixels) {
 206                         if (($filesize > $maximagesize) && (max($width, $height) > $pixels)) {
 207                                 Logger::info('Resize', ['size' => $filesize, 'width' => $width, 'height' => $height, 'max' => $maximagesize, 'pixels' => $pixels]);
 208                                 $Image->scaleDown($pixels);
 209                                 $filesize = strlen($Image->asString());
 210                                 $width = $Image->getWidth();
 211                                 $height = $Image->getHeight();
 212                         }
 213                 }
 214                 if ($filesize > $maximagesize) {
 215                         Logger::notice('Image size is too big', ['size' => $filesize, 'max' => $maximagesize]);
 216                         $msg = DI::l10n()->t('Image exceeds size limit of %s', Strings::formatBytes($maximagesize));
 217                         if ($r_json) {
 218                                 echo json_encode(['error' => $msg]);
 219                         } else {
 220                                 echo  $msg. EOL;
 221                         }
 222                         @unlink($src);
 223                         exit();
 224                 }
 225         }
 226
 227         $resource_id = Photo::newResource();
 228
 229         $smallest = 0;
 230
 231         // If we don't have an album name use the Wall Photos album
 232         if (!strlen($album)) {
 233                 $album = DI::l10n()->t('Wall Photos');
 234         }
 235
 236         $defperm = '<' . $default_cid . '>';
 237
 238         $r = Photo::store($Image, $page_owner_uid, $visitor, $resource_id, $filename, $album, 0, 0, $defperm);
 239
 240         if (!$r) {
 241                 $msg = DI::l10n()->t('Image upload failed.');
 242                 if ($r_json) {
 243                         echo json_encode(['error' => $msg]);
 244                 } else {
 245                         echo  $msg. EOL;
 246                 }
 247                 exit();
 248         }
 249
 250         if ($width > 640 || $height > 640) {
 251                 $Image->scaleDown(640);
 252                 $r = Photo::store($Image, $page_owner_uid, $visitor, $resource_id, $filename, $album, 1, 0, $defperm);
 253                 if ($r) {
 254                         $smallest = 1;
 255                 }
 256         }
 257
 258         if ($width > 320 || $height > 320) {
 259                 $Image->scaleDown(320);
 260                 $r = Photo::store($Image, $page_owner_uid, $visitor, $resource_id, $filename, $album, 2, 0, $defperm);
 261                 if ($r && ($smallest == 0)) {
 262                         $smallest = 2;
 263                 }
 264         }
 265
 266         if (!$desktopmode) {
 267                 $r = q("SELECT `id`, `datasize`, `width`, `height`, `type` FROM `photo`
 268                         WHERE `resource-id` = '%s'
 269                         ORDER BY `width` DESC LIMIT 1",
 270                         $resource_id
 271                 );
 272                 if (!$r) {
 273                         if ($r_json) {
 274                                 echo json_encode(['error' => '']);
 275                                 exit();
 276                         }
 277                         return false;
 278                 }
 279                 $picture = [];
 280
 281                 $picture["id"]        = $r[0]["id"];
 282                 $picture["size"]      = $r[0]["datasize"];
 283                 $picture["width"]     = $r[0]["width"];
 284                 $picture["height"]    = $r[0]["height"];
 285                 $picture["type"]      = $r[0]["type"];
 286                 $picture["albumpage"] = DI::baseUrl() . '/photos/' . $page_owner_nick . '/image/' . $resource_id;
 287                 $picture["picture"]   = DI::baseUrl() . "/photo/{$resource_id}-0." . $Image->getExt();
 288                 $picture["preview"]   = DI::baseUrl() . "/photo/{$resource_id}-{$smallest}." . $Image->getExt();
 289
 290                 if ($r_json) {
 291                         echo json_encode(['picture' => $picture]);
 292                         exit();
 293                 }
 294                 Logger::log("upload done", Logger::DEBUG);
 295                 return $picture;
 296         }
 297
 298         Logger::log("upload done", Logger::DEBUG);
 299
 300         if ($r_json) {
 301                 echo json_encode(['ok' => true]);
 302                 exit();
 303         }
 304
 305         echo  "\n\n" . '[url=' . DI::baseUrl() . '/photos/' . $page_owner_nick . '/image/' . $resource_id . '][img]' . DI::baseUrl() . "/photo/{$resource_id}-{$smallest}.".$Image->getExt()."[/img][/url]\n\n";
 306         exit();
 307         // NOTREACHED
 308 }