mod/wall_upload.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   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         $album = (!empty($_GET['album']) ? Strings::escapeTags(trim($_GET['album'])) : '');
  45
  46         if ($a->argc > 1) {
  47                 if (empty($_FILES['media'])) {
  48                         $nick = $a->argv[1];
  49                         $r = q("SELECT `user`.*, `contact`.`id` FROM `user`
  50                                 INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
  51                                 WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0
  52                                 AND `contact`.`self` = 1 LIMIT 1",
  53                                 DBA::escape($nick)
  54                         );
  55
  56                         if (!DBA::isResult($r)) {
  57                                 if ($r_json) {
  58                                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
  59                                         exit();
  60                                 }
  61                                 return;
  62                         }
  63                 } else {
  64                         $user_info = api_get_user($a);
  65                         $r = q("SELECT `user`.*, `contact`.`id` FROM `user`
  66                                 INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
  67                                 WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0
  68                                 AND `contact`.`self` = 1 LIMIT 1",
  69                                 DBA::escape($user_info['screen_name'])
  70                         );
  71                 }
  72         } else {
  73                 if ($r_json) {
  74                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
  75                         exit();
  76                 }
  77                 return;
  78         }
  79
  80         /*
  81          * Setup permissions structures
  82          */
  83         $can_post  = false;
  84         $visitor   = 0;
  85
  86         $page_owner_uid   = $r[0]['uid'];
  87         $default_cid      = $r[0]['id'];
  88         $page_owner_nick  = $r[0]['nickname'];
  89         $community_page   = (($r[0]['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
  90
  91         if ((local_user()) && (local_user() == $page_owner_uid)) {
  92                 $can_post = true;
  93         } elseif ($community_page && !empty(Session::getRemoteContactID($page_owner_uid))) {
  94                 $contact_id = Session::getRemoteContactID($page_owner_uid);
  95
  96                 $r = q("SELECT `uid` FROM `contact`
  97                         WHERE `blocked` = 0 AND `pending` = 0
  98                         AND `id` = %d AND `uid` = %d LIMIT 1",
  99                         intval($contact_id),
 100                         intval($page_owner_uid)
 101                 );
 102                 if (DBA::isResult($r)) {
 103                         $can_post = true;
 104                         $visitor = $contact_id;
 105                 }
 106         }
 107
 108         if (!$can_post) {
 109                 if ($r_json) {
 110                         echo json_encode(['error' => DI::l10n()->t('Permission denied.')]);
 111                         exit();
 112                 }
 113                 notice(DI::l10n()->t('Permission denied.') . EOL);
 114                 exit();
 115         }
 116
 117         if (empty($_FILES['userfile']) && empty($_FILES['media'])) {
 118                 if ($r_json) {
 119                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
 120                 }
 121                 exit();
 122         }
 123
 124         $src = '';
 125         $filename = '';
 126         $filesize = 0;
 127         $filetype = '';
 128         if (!empty($_FILES['userfile'])) {
 129                 $src      = $_FILES['userfile']['tmp_name'];
 130                 $filename = basename($_FILES['userfile']['name']);
 131                 $filesize = intval($_FILES['userfile']['size']);
 132                 $filetype = $_FILES['userfile']['type'];
 133
 134         } elseif (!empty($_FILES['media'])) {
 135                 if (!empty($_FILES['media']['tmp_name'])) {
 136                         if (is_array($_FILES['media']['tmp_name'])) {
 137                                 $src = $_FILES['media']['tmp_name'][0];
 138                         } else {
 139                                 $src = $_FILES['media']['tmp_name'];
 140                         }
 141                 }
 142
 143                 if (!empty($_FILES['media']['name'])) {
 144                         if (is_array($_FILES['media']['name'])) {
 145                                 $filename = basename($_FILES['media']['name'][0]);
 146                         } else {
 147                                 $filename = basename($_FILES['media']['name']);
 148                         }
 149                 }
 150
 151                 if (!empty($_FILES['media']['size'])) {
 152                         if (is_array($_FILES['media']['size'])) {
 153                                 $filesize = intval($_FILES['media']['size'][0]);
 154                         } else {
 155                                 $filesize = intval($_FILES['media']['size']);
 156                         }
 157                 }
 158
 159                 if (!empty($_FILES['media']['type'])) {
 160                         if (is_array($_FILES['media']['type'])) {
 161                                 $filetype = $_FILES['media']['type'][0];
 162                         } else {
 163                                 $filetype = $_FILES['media']['type'];
 164                         }
 165                 }
 166         }
 167
 168         if ($src == "") {
 169                 if ($r_json) {
 170                         echo json_encode(['error' => DI::l10n()->t('Invalid request.')]);
 171                         exit();
 172                 }
 173                 notice(DI::l10n()->t('Invalid request.').EOL);
 174                 exit();
 175         }
 176
 177         // This is a special treatment for picture upload from Twidere
 178         if (($filename == "octet-stream") && ($filetype != "")) {
 179                 $filename = $filetype;
 180                 $filetype = "";
 181         }
 182
 183         if ($filetype == "") {
 184                 $filetype = Images::guessType($filename);
 185         }
 186
 187         // If there is a temp name, then do a manual check
 188         // This is more reliable than the provided value
 189
 190         $imagedata = getimagesize($src);
 191         if ($imagedata) {
 192                 $filetype = $imagedata['mime'];
 193         }
 194
 195         Logger::log("File upload src: " . $src . " - filename: " . $filename .
 196                 " - size: " . $filesize . " - type: " . $filetype, Logger::DEBUG);
 197
 198         $maximagesize = DI::config()->get('system', 'maximagesize');
 199
 200         if (($maximagesize) && ($filesize > $maximagesize)) {
 201                 $msg = DI::l10n()->t('Image exceeds size limit of %s', Strings::formatBytes($maximagesize));
 202                 if ($r_json) {
 203                         echo json_encode(['error' => $msg]);
 204                 } else {
 205                         echo  $msg. EOL;
 206                 }
 207                 @unlink($src);
 208                 exit();
 209         }
 210
 211         $imagedata = @file_get_contents($src);
 212         $Image = new Image($imagedata, $filetype);
 213
 214         if (!$Image->isValid()) {
 215                 $msg = DI::l10n()->t('Unable to process image.');
 216                 if ($r_json) {
 217                         echo json_encode(['error' => $msg]);
 218                 } else {
 219                         echo  $msg. EOL;
 220                 }
 221                 @unlink($src);
 222                 exit();
 223         }
 224
 225         $Image->orient($src);
 226         @unlink($src);
 227
 228         $max_length = DI::config()->get('system', 'max_image_length');
 229         if (!$max_length) {
 230                 $max_length = MAX_IMAGE_LENGTH;
 231         }
 232         if ($max_length > 0) {
 233                 $Image->scaleDown($max_length);
 234                 Logger::log("File upload: Scaling picture to new size " . $max_length, Logger::DEBUG);
 235         }
 236
 237         $width = $Image->getWidth();
 238         $height = $Image->getHeight();
 239
 240         $resource_id = Photo::newResource();
 241
 242         $smallest = 0;
 243
 244         // If we don't have an album name use the Wall Photos album
 245         if (!strlen($album)) {
 246                 $album = DI::l10n()->t('Wall Photos');
 247         }
 248
 249         $defperm = '<' . $default_cid . '>';
 250
 251         $r = Photo::store($Image, $page_owner_uid, $visitor, $resource_id, $filename, $album, 0, 0, $defperm);
 252
 253         if (!$r) {
 254                 $msg = DI::l10n()->t('Image upload failed.');
 255                 if ($r_json) {
 256                         echo json_encode(['error' => $msg]);
 257                 } else {
 258                         echo  $msg. EOL;
 259                 }
 260                 exit();
 261         }
 262
 263         if ($width > 640 || $height > 640) {
 264                 $Image->scaleDown(640);
 265                 $r = Photo::store($Image, $page_owner_uid, $visitor, $resource_id, $filename, $album, 1, 0, $defperm);
 266                 if ($r) {
 267                         $smallest = 1;
 268                 }
 269         }
 270
 271         if ($width > 320 || $height > 320) {
 272                 $Image->scaleDown(320);
 273                 $r = Photo::store($Image, $page_owner_uid, $visitor, $resource_id, $filename, $album, 2, 0, $defperm);
 274                 if ($r && ($smallest == 0)) {
 275                         $smallest = 2;
 276                 }
 277         }
 278
 279         if (!$desktopmode) {
 280                 $r = q("SELECT `id`, `datasize`, `width`, `height`, `type` FROM `photo`
 281                         WHERE `resource-id` = '%s'
 282                         ORDER BY `width` DESC LIMIT 1",
 283                         $resource_id
 284                 );
 285                 if (!$r) {
 286                         if ($r_json) {
 287                                 echo json_encode(['error' => '']);
 288                                 exit();
 289                         }
 290                         return false;
 291                 }
 292                 $picture = [];
 293
 294                 $picture["id"]        = $r[0]["id"];
 295                 $picture["size"]      = $r[0]["datasize"];
 296                 $picture["width"]     = $r[0]["width"];
 297                 $picture["height"]    = $r[0]["height"];
 298                 $picture["type"]      = $r[0]["type"];
 299                 $picture["albumpage"] = DI::baseUrl() . '/photos/' . $page_owner_nick . '/image/' . $resource_id;
 300                 $picture["picture"]   = DI::baseUrl() . "/photo/{$resource_id}-0." . $Image->getExt();
 301                 $picture["preview"]   = DI::baseUrl() . "/photo/{$resource_id}-{$smallest}." . $Image->getExt();
 302
 303                 if ($r_json) {
 304                         echo json_encode(['picture' => $picture]);
 305                         exit();
 306                 }
 307                 Logger::log("upload done", Logger::DEBUG);
 308                 return $picture;
 309         }
 310
 311         Logger::log("upload done", Logger::DEBUG);
 312
 313         if ($r_json) {
 314                 echo json_encode(['ok' => true]);
 315                 exit();
 316         }
 317
 318         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";
 319         exit();
 320         // NOTREACHED
 321 }