mirror of
https://github.com/PawelSuwinski/moodle-auth_emailotp.git
synced 2026-05-16 21:41:27 +02:00
128 lines
4.0 KiB
PHP
128 lines
4.0 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Fields mapper.
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*
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* @package auth_emailotp
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* @copyright 2020 Pawel Suwinski <psuw@wp.pl>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace auth_emailotp;
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defined('MOODLE_INTERNAL') || die();
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/**
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* fields_mapper
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*
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* Example of usage:
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*
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* (new fields_mapper(
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* '#/?P<FIRST>[^\.]+)\.(?P<LAST>[^@]+)@(?P<COMPANY>[^\.]+).*#',
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* 'my.name@corp.com'
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* ))->map([
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* 'firstname:FIRST:ucfirst',
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* 'lastname:LAST:ucfirst',
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* 'institution:COMPANY:strtoupper,
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* ]);
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*
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* gives:
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*
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* ['firstname' => 'My', 'lastname' => 'Name', 'institution' => 'CORP']
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*
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* @package auth_emailotp
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* @copyright 2020 Pawel Suwinski <psuw@wp.pl>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class fields_mapper {
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const FORMAT = '^(\w+)\W(.+)';
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protected $replacepairs = null;
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protected $allowedfilters = ['ucwords', 'ucfirst', 'strtoupper'];
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/**
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* __construct
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*
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* @param string $pattern Named capturing groups regexp patttern
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* @param string $subject The string being translated
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* @return void
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*/
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public function __construct(string $pattern, string $subject) {
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$errhandler = set_error_handler(function ($severity, $message) {
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if (error_reporting() & $severity) {
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throw new \RuntimeException($message, $severity);
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}
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});
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if (preg_match($pattern, $subject, $replacepairs)) {
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array_shift($replacepairs);
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$this->replacepairs = $replacepairs;
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}
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set_error_handler($errhandler);
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}
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/**
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* set_allowed_filters
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*
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* @param array $allowedfilters Unary string functions names
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* @throws InvalidArgumentException|ReflectionException
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* @return self
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*/
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public function set_allowed_filters(array $allowedfilters) {
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foreach ($allowedfilters as $filter) {
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$reflection = new \ReflectionFunction($filter);
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if ($reflection->getNumberOfParameters() !== 1 ||
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$reflection->getNumberOfParameters()[0]->getType()->getName() != 'string') {
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throw new \InvalidArgumentException('Expected unary string function as a filter!');
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}
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}
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$this->allowedfilters = $allowedfilters;
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return $this;
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}
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/**
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* map_fields
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*
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* @param array $mapping
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* @return array
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*/
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public function map(array $mapping) {
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if (empty($this->replacepairs)) {
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return array();
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}
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$allowedfilters = !empty($this->allowedfilters)
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? '('.implode('|', $this->allowedfilters).')'
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: '';
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$fields = array();
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foreach ($mapping as $map) {
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$matches = array();
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!empty($allowedfilters) &&
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preg_match('/'.self::FORMAT.'\W'.$allowedfilters.'$/', $map, $matches) ||
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preg_match('/'.self::FORMAT.'$/', $map, $matches);
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if (count($matches) < 3) {
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continue;
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}
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$value = strtr($matches[2], $this->replacepairs);
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if (isset($matches[3])) {
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$value = call_user_func($matches[3], $value);
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}
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$fields[$matches[1]] = $value;
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}
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return $fields;
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}
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}
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