<?php namespace HashOver;// Copyright (C) 2015-2021 Jacob Barkdull// This file is part of HashOver.//// HashOver is free software: you can redistribute it and/or modify// it under the terms of the GNU Affero General Public License as// published by the Free Software Foundation, either version 3 of the// License, or (at your option) any later version.//// HashOver is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the// GNU Affero General Public License for more details.//// You should have received a copy of the GNU Affero General Public License// along with HashOver. If not, see <http://www.gnu.org/licenses/>.class Avatars{ protected $setup; protected $isVector; protected $gravatar; protected $iconSize; protected $avatar; protected $png; protected $svg; protected $fallback; // Supported icon sizes protected $iconSizes = array (45, 64, 128, 256, 512); // Initial setup public function __construct (Setup $setup) { // Store parameters as properties $this->setup = $setup; // Whether icon is vector based on setting $this->isVector = ($setup->imageFormat === 'svg'); // Get HTTPS status $is_https = $setup->isHTTPS (); // Use HTTPS if this file is requested with HTTPS $http = ($is_https ? 'https' : 'http') . '://'; $subdomain = $is_https ? 'secure' : 'www'; // Construct Gravatar icon URL $this->gravatar = $http . $subdomain . '.gravatar.com/avatar/'; // Icon setup $this->iconSetup ($setup->iconSize); } // Gets default avatar size closest to the given size protected function closestSize ($size = 45) { // Current supported size $closest = $this->iconSizes[0]; // Find the closest size for ($i = 0, $il = count ($this->iconSizes); $i < $il; $i++) { // Check if the size is too small if ($size > $closest) { // If so, increase closest size $closest = $this->iconSizes[$i]; } else { // If not, end the loop break; } } return $closest; } // Sets up avatar protected function iconSetup ($size = 45) { // Set icon size (256 for vector) $this->iconSize = $this->isVector ? 256 : $size; // Set default icon size (256 for vector) $default_size = $this->isVector ? 256 : $this->closestSize ($size); // Default avatar file names $avatar = $this->setup->httpImages . '/avatar'; $this->png = $avatar . '-' . $default_size . '.png'; $this->svg = $avatar . '.svg'; // Set avatar property to appropriate type $this->avatar = $this->isVector ? $this->svg : $this->png; // Check if avatar is set to custom if ($this->setup->gravatarDefault === 'custom') { // If so, direct 404s to local PNG avatar image $fallback = $this->png; // Make avatar path absolute when not accessed remotely if ($this->setup->remoteAccess === false) { $fallback = $this->setup->absolutePath . $fallback; } // And set final fallback avatar path property $this->fallback = $fallback; } else { // If not, direct 404s to a themed default $this->fallback = $this->setup->gravatarDefault; } } // Attempt to get Gravatar avatar image public function getGravatar ($hash, $abs = false, $size = false) { // Decide desired size of icon $size = $size ?: $this->setup->iconSize; // Perform setup again if the size doesn't match if ($size !== $this->iconSize) { $this->iconSetup ($size); } // If no hash is given, return the default avatar if (empty ($hash)) { // Return absolute path if told to and accessed remotely if ($abs === true and $this->setup->remoteAccess !== true) { return $this->setup->absolutePath . $this->avatar; } // Otherwise, return avatar path as-is return $this->avatar; } // Gravatar URL $gravatar = $this->gravatar . $hash . '.png?r=pg'; $gravatar .= '&s=' . urlencode ($this->iconSize); $gravatar .= '&d=' . urlencode ($this->fallback); // Force Gravatar default avatar if enabled if ($this->setup->gravatarForce === true) { $gravatar .= '&f=y'; } // Redirect Gravatar image return $gravatar; }}