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142 lines
5.3 KiB
142 lines
5.3 KiB
<?php
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// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
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//
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// All Rights Reserved. See copyright.txt for details and a complete list of authors.
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// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
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// $Id$
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// this script may only be included - so its better to die if called directly.
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if (strpos($_SERVER['SCRIPT_NAME'], basename(__FILE__)) !== false) {
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header('location: index.php');
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exit;
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}
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/**
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* This class bundles several avatar-related functions
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*
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* todo: It would be good to get existing avatar functionality and bring it into this lib.
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*
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* @author patrick-proulx
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* @since 15.0
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*/
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class AvatarLib extends TikiLib
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{
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/**
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* sets the avatar from a given image file's URL
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*
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* @param string $url location of the file
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* @param string $userwatch user the avatar is for
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* @param string $name original name of the file
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*
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* @throws Exception
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*/
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final public function set_avatar_from_url(string $url, string $userwatch = '', string $name = ''): void
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{
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global $user, $prefs;
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/** @var TikiAccessLib $access */
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$access = TikiLib::lib('access');
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$access->check_feature('feature_userPreferences');
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$access->check_user($user);
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/** @var UserPrefsLib $userprefslib */
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$userprefslib = TikiLib::lib('userprefs');
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if (empty($userwatch)) {
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$userwatch = $user;
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}
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$data = file_get_contents($url);
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list($iwidth, $iheight, $itype, $iattr) = getimagesize($url);
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$itype = image_type_to_mime_type($itype);
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// Get proper file size of image
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$imgdata = get_headers($url, true);
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if (isset($imgdata['Content-Length'])) {
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# Return file size
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$size = (int)$imgdata['Content-Length'];
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} else {
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$size = strlen($data);
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}
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// Store full-size file gallery image if that is required
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if ($prefs["user_store_file_gallery_picture"] == 'y') {
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$fgImageId = $userprefslib->set_file_gallery_image($userwatch, $name, $size, $itype, $data);
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$file = \Tiki\FileGallery\File::id($fgImageId);
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$data = $file->getContents();
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}
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// Store small avatar
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if ($prefs['user_small_avatar_size']) {
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$avsize = $prefs['user_small_avatar_size'];
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} else {
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$avsize = "45"; //default
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}
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if (($iwidth == $avsize and $iheight <= $avsize) || ($iwidth <= $avsize and $iheight == $avsize)) {
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$userprefslib->set_user_avatar($userwatch, 'u', '', $name, $size, $itype, $data);
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} else {
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if (function_exists('imagecreatefromstring') && (! strstr($itype, 'gif'))) {
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$img = imagecreatefromstring($data);
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$size_x = imagesx($img);
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$size_y = imagesy($img);
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/* if the square crop is set, crop the image before resizing */
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if ($prefs['user_small_avatar_square_crop']) {
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$crop_size = min($size_x, $size_y);
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$offset_x = ($size_x - $crop_size) / 2;
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$offset_y = ($size_y - $crop_size) / 2;
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$crop_array = ['x' => $offset_x , 'y' => $offset_y, 'width' => $crop_size, 'height' => $crop_size];
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$img = imagecrop($img, $crop_array);
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$size_x = $size_y = $crop_size;
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}
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if ($size_x > $size_y) {
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$tscale = ((int)$size_x / $avsize);
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} else {
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$tscale = ((int)$size_y / $avsize);
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}
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$tw = ((int)($size_x / $tscale));
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$ty = ((int)($size_y / $tscale));
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if ($tw > $size_x) {
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$tw = $size_x;
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}
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if ($ty > $size_y) {
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$ty = $size_y;
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}
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if (chkgd2()) {
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$t = imagecreatetruecolor($tw, $ty);
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// trick to have a transparent background for png instead of black
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imagesavealpha($t, true);
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$trans_colour = imagecolorallocatealpha($t, 0, 0, 0, 127);
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imagefill($t, 0, 0, $trans_colour);
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imagecopyresampled($t, $img, 0, 0, 0, 0, $tw, $ty, $size_x, $size_y);
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} else {
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// TODO ImageGalleryRemoval23.x - replace imagick if no GD
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}
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// CHECK IF THIS TEMP IS WRITEABLE OR CHANGE THE PATH TO A WRITEABLE DIRECTORY
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$tmpfname = tempnam($prefs['tmpDir'], "TMPIMG");
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imagepng($t, $tmpfname);
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// Now read the information
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$fp = fopen($tmpfname, "rb");
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$t_data = fread($fp, filesize($tmpfname));
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fclose($fp);
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unlink($tmpfname);
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$t_type = 'image/png';
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$userprefslib->set_user_avatar($userwatch, 'u', '', $name, $size, $t_type, $t_data);
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} else {
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$userprefslib->set_user_avatar($userwatch, 'u', '', $name, $size, $itype, $data);
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}
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}
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TikiLib::events()->trigger(
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'tiki.user.avatar',
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[
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'type' => 'user',
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'object' => $userwatch,
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'user' => $userwatch,
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]
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);
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}
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}
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