hide-metadata / hide-metadata.php

hide-metadata.php in Hide/Remove Metadata trunk, at hide-metadata.php

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1	<?php
2	/**
3	* Plugin Name: Hide/Remove Metadata
4	* Description: Hide/Remove Metadata is a free, simple yet extremely handy WordPress plugin that helps you hide author and published date either by CSS or PHP from your website effortlessly.
5	* Plugin URI: http://catchplugins.com/plugins/hide-metadata
6	* Author: Catch Plugins
7	* Author URI: http://catchplugins.com/
8	* Version: 2.1
9	* License: GPL2
10	* Text Domain: hide-metadata
11	* Domain Path: /languages
12	*/
13
14	/*
15	Copyright (C) Year Author Email
16
17	This program is free software; you can redistribute it and/or modify
18	it under the terms of the GNU General Public License, version 2, as
19	published by the Free Software Foundation.
20
21	This program is distributed in the hope that it will be useful,
22	but WITHOUT ANY WARRANTY; without even the implied warranty of
23	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24	GNU General Public License for more details.
25
26	You should have received a copy of the GNU General Public License
27	along with this program; if not, write to the Free Software
28	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29	*/
30
31	if (! defined('ABSPATH')) {
32	exit; // Exit if accessed directly
33	}
34
35	// Define Version
36	if ( ! defined( 'HIDE_METADATA_VERSION' ) ) {
37	define( 'HIDE_METADATA_VERSION', '2.1' );
38	}
39
40	if ( ! defined( 'HIDE_METADATA_BASENAME' ) ) {
41	define('HIDE_METADATA_BASENAME', plugin_basename(__FILE__));
42	}
43
44	class Hide_Metadata
45	{
46	private $plugin_name;
47	private $version;
48	private $options;
49
50	function __construct()
51	{
52	$this->plugin_name = 'hide-metadata';
53	$this->version = HIDE_METADATA_VERSION;
54	$this->options = hide_metadata_get_options();
55
56	add_filter('body_class', array($this, 'hide_metadata_body_class'));
57	add_action('admin_init', array($this, 'register_settings'));
58	add_action('admin_menu', array($this, 'add_plugin_settings_menu'));
59	add_action('admin_enqueue_scripts', array($this, 'enqueue_styles'));
60	add_action('wp_enqueue_scripts', array($this, 'plugin_styles'));
61	add_action('admin_enqueue_scripts', array($this, 'enqueue_scripts'));
62
63	add_filter('plugin_row_meta', array($this, 'add_plugin_meta_links'), 10, 2);
64
65	add_filter('plugin_action_links', array($this, 'action_links'), 10, 2);
66
67	if ('php' === $this->options['hide_by']) {
68	add_action('loop_start', array($this, 'remove_php'));
69	add_action('init', array($this, 'remove_php'));
70	}
71	}
72
73
74	/**
75	* Register the stylesheets for the admin area.
76	*
77	* @since 1.0.0
78	*/
79	function enqueue_styles()
80	{
81	$hm_page = isset($_GET['page']) ? sanitize_text_field(wp_unslash($_GET['page'])) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only page check for admin style loading.
82	if ('hide-metadata' === $hm_page) {
83	wp_enqueue_style($this->plugin_name . '-display-dashboard', plugin_dir_url(__FILE__) . 'css/admin-dashboard.css', array(), $this->version, 'all');
84	}
85	}
86
87
88	function plugin_styles()
89	{
90	wp_enqueue_style($this->plugin_name . '-style', plugin_dir_url(__FILE__) . 'css/style.css', array(), $this->version, 'all');
91	}
92
93
94	/**
95	* Register the scripts for the admin area.
96	*
97	* @since 1.0.0
98	*/
99	function enqueue_scripts()
100	{
101	$hm_page = isset($_GET['page']) ? sanitize_text_field(wp_unslash($_GET['page'])) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only page check for admin script loading.
102	if ('hide-metadata' === $hm_page) {
103	wp_enqueue_script($this->plugin_name, plugin_dir_url(__FILE__) . 'js/hide-metadata-admin.js', array('jquery', 'matchHeight', 'jquery-ui-tooltip'), $this->version, false);
104
105	wp_enqueue_script('matchHeight', plugin_dir_url(__FILE__) . 'js/jquery-matchHeight.min.js', array('jquery'), $this->version, false);
106	}
107	}
108
109	/**
110	* Hide/Remove MetaData: action_links
111	* Hide/Remove MetaData Settings Link function callback
112	*
113	* @param arrray $links Link url.
114	*
115	* @param arrray $file File name.
116	*/
117	function action_links($links, $file)
118	{
119	if ($file === $this->plugin_name . '/' . $this->plugin_name . '.php') {
120	$settings_link = '<a href="' . esc_url(admin_url('tools.php?page=hide-metadata')) . '">' . esc_html__('Settings', 'hide-metadata') . '</a>';
121
122	array_unshift($links, $settings_link);
123	}
124	return $links;
125	}
126
127	/**
128	* Add settings menu
129	*/
130	function add_plugin_settings_menu()
131	{
132	// Add menu under tools
133	add_submenu_page(
134	'tools.php',
135	esc_html__('Hide/Remove Metadata', 'hide-metadata'),
136	esc_html__('Hide/Remove Metadata', 'hide-metadata'),
137	'manage_options',
138	'hide-metadata',
139	array($this, 'settings_page')
140	);
141	}
142
143	/**
144	* Hide/Remove MetaData: settings_page
145	* Hide/Remove MetaData Setting function
146	*/
147	function settings_page()
148	{
149	if (! current_user_can('manage_options')) {
150	wp_die(esc_html__('You do not have sufficient permissions to access this page.', 'hide-metadata'));
151	}
152
153	require plugin_dir_path(__FILE__) . 'partials/admin-display.php';
154	}
155
156	function register_settings()
157	{
158	register_setting(
159	'hide-metadata-group',
160	'hide_metadata_options',
161	array($this, 'sanitize_callback')
162	);
163	}
164
165	public function sanitize_callback($input)
166	{
167
168	if (isset($input['reset']) && $input['reset']) {
169	// If reset, restore defaults
170	return hide_metadata_default_options();
171	}
172	$message = null;
173	$type = null;
174
175	// Verify the nonce before proceeding.
176	if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)
177	\|\| (! isset($_POST['hide_metadata_nonce'])
178	\|\| ! wp_verify_nonce(sanitize_text_field(wp_unslash($_POST['hide_metadata_nonce'])), HIDE_METADATA_BASENAME))
179	\|\| (! check_admin_referer(HIDE_METADATA_BASENAME, 'hide_metadata_nonce'))
180	) {
181
182	return esc_html__('Invalid Nonce', 'hide-metadata');
183	} else {
184	if (null !== $input) {
185
186	$input['hide_by'] = sanitize_key($input['hide_by']);
187	$input['hide_author'] = (isset($input['hide_author']) && '1' === $input['hide_author']) ? '1' : '0';
188	$input['hide_date'] = (isset($input['hide_date']) && '1' === $input['hide_date']) ? '1' : '0';
189	}
190	return $input;
191	}
192	}
193
194
195	// Removal using css
196
197	public function hide_metadata_body_class($classes)
198	{
199
200	$options = hide_metadata_get_options();
201
202	if ('1' === $options['hide_author'] && 'css' === $options['hide_by']) {
203	$classes[] = 'hide-meta-author';
204	}
205	if ('1' === $options['hide_date'] && 'css' === $options['hide_by']) {
206	$classes[] = 'hide-meta-date';
207	}
208	if ('1' === $options['hide_date'] && 'php' === $options['hide_by']) {
209	$classes[] = 'hide-meta-date-php';
210	}
211	if ('1' === $options['hide_author'] && 'php' === $options['hide_by']) {
212	$classes[] = 'hide-meta-author-php';
213	}
214
215	return $classes;
216	}
217
218
219
220	function remove_php()
221	{
222	$options = hide_metadata_get_options();
223
224	if ('1' === $options['hide_author']) {
225	add_filter('the_author', '__return_false');
226	add_filter('get_the_author', '__return_false');
227	add_filter('author_link', '__return_false');
228	}
229
230	if ('1' === $options['hide_date']) {
231	add_filter('the_date', '__return_false');
232	add_filter('the_time', '__return_false');
233	add_filter('the_modified_date', '__return_false');
234	add_filter('get_the_date', '__return_false');
235	add_filter('get_the_time', '__return_false');
236	add_filter('get_the_modified_date', '__return_false');
237	}
238	}
239
240
241	function add_plugin_meta_links($meta_fields, $file)
242	{
243
244	if (plugin_basename(__FILE__) === $file) {
245
246	$meta_fields[] = "<a href='https://catchplugins.com/support-forum/forum/hide-metadata/' target='_blank'>Support Forum</a>";
247	$meta_fields[] = "<a href='https://wordpress.org/support/plugin/hide-metadata/reviews#new-post' target='_blank' title='Rate'>
248	<i class='ct-rate-stars'>"
249	. "<svg xmlns='http://www.w3.org/2000/svg' width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-star'><polygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/></svg>"
250	. "<svg xmlns='http://www.w3.org/2000/svg' width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-star'><polygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/></svg>"
251	. "<svg xmlns='http://www.w3.org/2000/svg' width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-star'><polygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/></svg>"
252	. "<svg xmlns='http://www.w3.org/2000/svg' width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-star'><polygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/></svg>"
253	. "<svg xmlns='http://www.w3.org/2000/svg' width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-star'><polygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/></svg>"
254	. '</i></a>';
255
256	$stars_color = '#ffb900';
257
258	echo '<style>'
259	. '.ct-rate-stars{display:inline-block;color:' . esc_html($stars_color) . ';position:relative;top:3px;}'
260	. '.ct-rate-stars svg{fill:' . esc_html($stars_color) . ';}'
261	. '.ct-rate-stars svg:hover{fill:' . esc_html($stars_color) . '}'
262	. '.ct-rate-stars svg:hover ~ svg{fill:none;}'
263	. '</style>';
264	}
265
266	return $meta_fields;
267	}
268	}
269
270	new Hide_Metadata();
271
272
273	function hide_metadata_default_options($option = null)
274	{
275	$default_options = array(
276	'hide_by' => 'css',
277	'hide_author' => '0',
278	'hide_date' => '0',
279	);
280
281	if (null === $option) {
282	return apply_filters('hide_metadata_options', $default_options);
283	} else {
284	return $default_options[$option];
285	}
286	}
287
288	function hide_metadata_get_options()
289	{
290	$defaults = hide_metadata_default_options();
291	$options = get_option('hide_metadata_options', $defaults);
292
293	return wp_parse_args($options, $defaults);
294	}
295