hide-metadata / hide-metadata.php

hide-metadata.php in Hide/Remove Metadata 1.2.2, 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: 1.2.2
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	define( 'HIDE_METADATA_VERSION', '1.2.2' );
32	define( 'HIDE_METADATA_BASENAME', plugin_basename( __FILE__ ) );
33
34	class Hide_Metadata {
35	private $plugin_name;
36	private $version;
37	private $options;
38
39	function __construct() {
40	$this->plugin_name = 'hide-metadata';
41	$this->version = HIDE_METADATA_VERSION;
42	$this->options = hide_metadata_get_options();
43
44	add_action( 'admin_init', array( $this, 'register_settings' ) );
45	add_action( 'admin_menu', array( $this, 'add_plugin_settings_menu' ) );
46	add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_styles' ) );
47	add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
48
49	add_filter( 'plugin_row_meta', array( $this, 'add_plugin_meta_links' ), 10, 2 );
50
51	add_filter( 'plugin_action_links', array( $this, 'action_links' ), 10, 2 );
52
53	if ( 'php' === $this->options['hide_by'] ) {
54	add_action( 'loop_start', array( $this, 'remove_php' ) );
55	add_action( 'init', array( $this, 'remove_php' ) );
56	}
57	add_action( 'wp_head', array( $this, 'css_filter_option' ) );
58	}
59
60	/**
61	* Register the stylesheets for the admin area.
62	*
63	* @since 1.0.0
64	*/
65	function enqueue_styles() {
66	if ( isset( $_GET['page'] ) && 'hide-metadata' === $_GET['page'] ) {
67	wp_enqueue_style( $this->plugin_name . '-display-dashboard', plugin_dir_url( __FILE__ ) . 'css/admin-dashboard.css', array(), $this->version, 'all' );
68	}
69	}
70
71	/**
72	* Register the scripts for the admin area.
73	*
74	* @since 1.0.0
75	*/
76	function enqueue_scripts() {
77	if ( isset( $_GET['page'] ) && 'hide-metadata' === $_GET['page'] ) {
78	wp_enqueue_script( $this->plugin_name, plugin_dir_url( __FILE__ ) . 'js/hide-metadata-admin.js', array( 'jquery', 'matchHeight', 'jquery-ui-tooltip' ), $this->version, false );
79
80	wp_enqueue_script( 'matchHeight', plugin_dir_url( __FILE__ ) . 'js/jquery-matchHeight.min.js', array( 'jquery' ), $this->version, false );
81
82	}
83	}
84
85	/**
86	* Hide/Remove MetaData: action_links
87	* Hide/Remove MetaData Settings Link function callback
88	*
89	* @param arrray $links Link url.
90	*
91	* @param arrray $file File name.
92	*/
93	function action_links( $links, $file ) {
94	if ( $file === $this->plugin_name . '/' . $this->plugin_name . '.php' ) {
95	$settings_link = '<a href="' . esc_url( admin_url( 'admin.php?page=hide-metadata' ) ) . '">' . esc_html__( 'Settings', 'hide-metadata' ) . '</a>';
96
97	array_unshift( $links, $settings_link );
98	}
99	return $links;
100	}
101
102	/**
103	* Add settings menu
104	*/
105	function add_plugin_settings_menu() {
106	// Add menu under tools
107	add_submenu_page(
108	'tools.php',
109	esc_html__( 'Hide/Remove Metadata', 'hide-metadata' ),
110	esc_html__( 'Hide/Remove Metadata', 'hide-metadata' ),
111	'manage_options',
112	'hide-metadata',
113	array( $this, 'settings_page' )
114	);
115	}
116
117	/**
118	* Hide/Remove MetaData: settings_page
119	* Hide/Remove MetaData Setting function
120	*/
121	function settings_page() {
122	if ( ! current_user_can( 'manage_options' ) ) {
123	wp_die( esc_html__( 'You do not have sufficient permissions to access this page.' ) );
124	}
125
126	require plugin_dir_path( __FILE__ ) . 'partials/admin-display.php';
127	}
128
129	function register_settings() {
130	register_setting(
131	'hide-metadata-group',
132	'hide_metadata_options',
133	array( $this, 'sanitize_callback' )
134	);
135	}
136
137	public function sanitize_callback( $input ) {
138
139	if ( isset( $input['reset'] ) && $input['reset'] ) {
140	//If reset, restore defaults
141	return hide_metadata_default_options();
142	}
143	$message = null;
144	$type = null;
145
146	// Verify the nonce before proceeding.
147	if ( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
148	\|\| ( ! isset( $_POST['hide_metadata_nonce'] )
149	\|\| ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['hide_metadata_nonce'] ) ), HIDE_METADATA_BASENAME ) )
150	\|\| ( ! check_admin_referer( HIDE_METADATA_BASENAME, 'hide_metadata_nonce' ) ) ) {
151
152	return esc_html__( 'Invalid Nonce', 'hide-metadata' );
153
154	} else {
155	if ( null !== $input ) {
156
157	$input['hide_by'] = sanitize_key( $input['hide_by'] );
158	$input['hide_author'] = ( isset( $input['hide_author'] ) && '1' === $input['hide_author'] ) ? '1' : '0';
159	$input['hide_date'] = ( isset( $input['hide_date'] ) && '1' === $input['hide_date'] ) ? '1' : '0';
160
161	}
162	return $input;
163	}
164	}
165
166	function hide_by_css() {
167
168	$css = '';
169	$options = hide_metadata_get_options();
170
171	// Hide author CSS
172	if ( '1' === $options['hide_author'] && 'css' === $options['hide_by'] ) {
173	$css .= ".entry-meta .byline,
174	.entry-meta .by-author,
175	.entry-header .entry-meta > span.byline {
176	display: none;
177	}\n";
178	}
179
180	// Hide date CSS
181	if ( '1' === $options['hide_date'] && 'css' === $options['hide_by'] ) {
182	$css .= ".entry-meta .posted-on,
183	.entry-header .entry-meta > span.posted-on {
184	display: none;
185	}\n";
186	}
187
188	// Hide author
189	if ( '1' === $options['hide_author'] && 'php' === $options['hide_by'] ) {
190	$css .= ".entry-meta .byline:before,
191	.entry-header .entry-meta span.byline:before,
192	.entry-meta .byline:after,
193	.entry-header .entry-meta span.byline:after,
194	.single .byline, .group-blog .byline,
195	.entry-meta .byline,
196	.entry-header .entry-meta > span.byline {
197	content: '';
198	display: none;
199	margin: 0;
200	}\n";
201	}
202
203	// Hide date
204	if ( '1' === $options['hide_date'] && 'php' === $options['hide_by'] ) {
205	$css .= ".entry-meta .posted-on:before,
206	.entry-header .entry-meta > span.posted-on:before,
207	.entry-meta .posted-on:after,
208	.entry-header .entry-meta > span.posted-on:after,
209	.entry-meta .posted-on,
210	.entry-header .entry-meta > span.posted-on {
211	content: '';
212	display: none;
213	margin: 0;
214	}\n";
215	}
216
217	return $css;
218	}
219
220	//Removal using css
221
222	function inline_style() {
223	$css = $this->hide_by_css();
224	if ( ! empty( $css ) ) {
225	echo "<style>\n\n/* CSS added by Hide Metadata Plugin */\n\n" . wp_strip_all_tags( $css ) . "</style>\n";
226	}
227	}
228
229	function remove_php() {
230	$options = hide_metadata_get_options();
231
232	if ( '1' === $options['hide_author'] ) {
233	add_filter( 'the_author', '__return_false' );
234	add_filter( 'get_the_author', '__return_false' );
235	add_filter( 'author_link', '__return_false' );
236	}
237
238	if ( '1' === $options['hide_date'] ) {
239	add_filter( 'the_date', '__return_false' );
240	add_filter( 'the_time', '__return_false' );
241	add_filter( 'the_modified_date', '__return_false' );
242	add_filter( 'get_the_date', '__return_false' );
243	add_filter( 'get_the_title', '__return_false' );
244	add_filter( 'get_the_time', '__return_false' );
245	add_filter( 'get_the_modified_date', '__return_false' );
246	}
247	}
248
249	function css_filter_option() {
250	$this->inline_style();
251	}
252
253	function add_plugin_meta_links( $meta_fields, $file ) {
254
255	if ( plugin_basename( __FILE__ ) === $file ) {
256
257	$meta_fields[] = "<a href='https://catchplugins.com/support-forum/forum/hide-metadata/' target='_blank'>Support Forum</a>";
258	$meta_fields[] = "<a href='https://wordpress.org/support/plugin/hide-metadata/reviews#new-post' target='_blank' title='Rate'>
259	<i class='ct-rate-stars'>"
260	. "<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>"
261	. "<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>"
262	. "<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>"
263	. "<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>"
264	. "<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>"
265	. '</i></a>';
266
267	$stars_color = '#ffb900';
268
269	echo '<style>'
270	. '.ct-rate-stars{display:inline-block;color:' . $stars_color . ';position:relative;top:3px;}'
271	. '.ct-rate-stars svg{fill:' . $stars_color . ';}'
272	. '.ct-rate-stars svg:hover{fill:' . $stars_color . '}'
273	. '.ct-rate-stars svg:hover ~ svg{fill:none;}'
274	. '</style>';
275	}
276
277	return $meta_fields;
278	}
279
280	}
281
282	new Hide_Metadata();
283
284
285	function hide_metadata_default_options( $option = null ) {
286	$default_options = array(
287	'hide_by' => 'css',
288	'hide_author' => '0',
289	'hide_date' => '0',
290	);
291
292	if ( null === $option ) {
293	return apply_filters( 'hide_metadata_options', $default_options );
294	} else {
295	return $default_options[ $option ];
296	}
297	}
298
299	function hide_metadata_get_options() {
300	$defaults = hide_metadata_default_options();
301	$options = get_option( 'hide_metadata_options', $defaults );
302
303	return wp_parse_args( $options, $defaults );
304	}
305