code-snippets / php / settings / settings.php

settings.php in Code Snippets 3.2.1, at php/settings/settings.php

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1	<?php
2	/**
3	* This file registers the settings
4	*
5	* @package Code_Snippets
6	* @subpackage Settings
7	*/
8
9	namespace Code_Snippets\Settings;
10
11	const NS = __NAMESPACE__ . '\\';
12
13	const CACHE_KEY = 'code_snippets_settings';
14
15	/**
16	* Add a new option for either the current site or the current network
17	*
18	* @param bool $network Whether to add a network-wide option.
19	* @param string $option Name of option to add. Expected to not be SQL-escaped.
20	* @param mixed $value Option value, can be anything. Expected to not be SQL-escaped.
21	*
22	* @return bool False if the option was not added. True if the option was added.
23	*/
24	function add_self_option( $network, $option, $value ) {
25	return $network ? add_site_option( $option, $value ) : add_option( $option, $value );
26	}
27
28	/**
29	* Retrieves an option value based on an option name from either the current site or the current network
30	*
31	* @param bool $network Whether to get a network-wide option.
32	* @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
33	* @param mixed $default Optional value to return if option doesn't exist. Default false.
34	*
35	* @return mixed Value set for the option.
36	*/
37	function get_self_option( $network, $option, $default = false ) {
38	return $network ? get_site_option( $option, $default ) : get_option( $option, $default );
39	}
40
41	/**
42	* Update the value of an option that was already added on the current site or the current network
43	*
44	* @param bool $network Whether to update a network-wide option.
45	* @param string $option Name of option. Expected to not be SQL-escaped.
46	* @param mixed $value Option value. Expected to not be SQL-escaped.
47	*
48	* @return bool False if value was not updated. True if value was updated.
49	*/
50	function update_self_option( $network, $option, $value ) {
51	return $network ? update_site_option( $option, $value ) : update_option( $option, $value );
52	}
53
54	/**
55	* Returns 'true' if plugin settings are unified on a multisite installation
56	* under the Network Admin settings menu
57	*
58	* This option is controlled by the "Enable administration menus" setting on the Network Settings menu
59	*
60	* @return bool
61	*/
62	function are_settings_unified() {
63	if ( ! is_multisite() ) {
64	return false;
65	}
66
67	$menu_perms = get_site_option( 'menu_items', array() );
68
69	return empty( $menu_perms['snippets_settings'] );
70	}
71
72	/**
73	* Retrieve the setting values from the database.
74	* If a setting does not exist in the database, the default value will be returned.
75	*
76	* @return array
77	*/
78	function get_settings_values() {
79
80	// Check if the settings have been cached.
81	$settings = wp_cache_get( CACHE_KEY );
82	if ( $settings ) {
83	return $settings;
84	}
85
86	/* Begin with the default settings */
87	$settings = get_default_settings();
88
89	/* Retrieve saved settings from the database */
90	$saved = get_self_option( are_settings_unified(), 'code_snippets_settings', array() );
91
92	/* Replace the default field values with the ones saved in the database */
93	foreach ( $settings as $section => $fields ) {
94	if ( isset( $saved[ $section ] ) ) {
95	$settings[ $section ] = array_replace( $fields, $saved[ $section ] );
96	}
97	}
98
99	wp_cache_set( CACHE_KEY, $settings );
100
101	return $settings;
102	}
103
104	/**
105	* Retrieve an individual setting field value
106	*
107	* @param string $section ID of the section the setting belongs to.
108	* @param string $field ID of the setting field.
109	*
110	* @return mixed
111	*/
112	function get_setting( $section, $field ) {
113	$settings = get_settings_values();
114
115	return $settings[ $section ][ $field ];
116	}
117
118	/**
119	* Update a single setting to a new value.
120	*
121	* @param string $section ID of the section the setting belongs to.
122	* @param string $field ID of the setting field.
123	* @param mixed $new_value Setting value. Expected to not be SQL-escaped.
124	*
125	* @return bool False if value was not updated. True if value was updated.
126	*/
127	function update_setting( $section, $field, $new_value ) {
128	$settings = get_settings_values();
129
130	$settings[ $section ][ $field ] = $new_value;
131
132	wp_cache_set( CACHE_KEY, $settings );
133	return update_self_option( are_settings_unified(), 'code_snippets_settings', $settings );
134	}
135
136	/**
137	* Retrieve the settings sections
138	*
139	* @return array
140	*/
141	function get_settings_sections() {
142	$sections = array(
143	'general' => __( 'General', 'code-snippets' ),
144	'description_editor' => __( 'Description Editor', 'code-snippets' ),
145	'editor' => __( 'Code Editor', 'code-snippets' ),
146	);
147
148	return apply_filters( 'code_snippets_settings_sections', $sections );
149	}
150
151	/**
152	* Register settings sections, fields, etc
153	*/
154	function register_plugin_settings() {
155
156	if ( are_settings_unified() ) {
157
158	if ( ! get_site_option( 'code_snippets_settings', false ) ) {
159	add_site_option( 'code_snippets_settings', get_default_settings() );
160	}
161	} else {
162
163	if ( ! get_option( 'code_snippets_settings', false ) ) {
164	add_option( 'code_snippets_settings', get_default_settings() );
165	}
166	}
167
168	/* Register the setting */
169	register_setting(
170	'code-snippets',
171	'code_snippets_settings',
172	array( 'sanitize_callback' => NS . 'sanitize_settings' )
173	);
174
175	/* Register settings sections */
176	$sections = get_settings_sections();
177
178	if ( ! get_setting( 'general', 'enable_description' ) ) {
179	unset( $sections['description_editor'] );
180	}
181
182	foreach ( $sections as $section_id => $section_name ) {
183	add_settings_section( $section_id, $section_name, null, 'code-snippets' );
184	}
185
186	/* Register settings fields */
187	foreach ( get_settings_fields() as $section_id => $fields ) {
188	foreach ( $fields as $field_id => $field ) {
189	$field_object = new Setting_Field( $section_id, $field_id, $field );
190	add_settings_field( $field_id, $field['name'], [ $field_object, 'render' ], 'code-snippets', $section_id );
191	}
192	}
193
194	/* Add editor preview as a field */
195	add_settings_field(
196	'editor_preview',
197	__( 'Editor Preview', 'code-snippets' ),
198	NS . 'render_editor_preview',
199	'code-snippets',
200	'editor'
201	);
202	}
203
204	add_action( 'admin_init', NS . 'register_plugin_settings' );
205
206	/**
207	* Sanitize a single setting value.
208	*
209	* @param array $field Setting field information.
210	* @param mixed $input_value User input setting value, or null if missing.
211	*
212	* @return mixed Sanitized setting value, or null if unset.
213	*/
214	function sanitize_setting_value( $field, $input_value ) {
215	switch ( $field['type'] ) {
216
217	case 'checkbox':
218	return 'on' === $input_value;
219
220	case 'number':
221	return absint( $input_value );
222
223	case 'select':
224	// phpcs:ignore WordPress.PHP.StrictInArray.FoundNonStrictFalse
225	return in_array( $input_value, array_keys( $field['options'] ), false ) ? $input_value : null;
226
227	case 'checkboxes':
228	$results = [];
229
230	if ( ! empty( $input_value ) ) {
231	foreach ( $field['options'] as $option_id => $option_label ) {
232	if ( isset( $input_value[ $option_id ] ) && 'on' === $input_value[ $option_id ] ) {
233	$results[] = $option_id;
234	}
235	}
236	}
237
238	return $results;
239
240	case 'text':
241	return trim( sanitize_text_field( $input_value ) );
242
243	case 'callback':
244	return array_key_exists( 'sanitize_callback', $field ) && is_callable( $field['sanitize_callback'] ) ?
245	call_user_func( $field['sanitize_callback'], $input_value ) :
246	null;
247
248	default:
249	return null;
250	}
251	}
252
253	/**
254	* Validate the settings
255	*
256	* @param array $input The received settings.
257	*
258	* @return array The validated settings.
259	*/
260	function sanitize_settings( array $input ) {
261	$settings = get_settings_values();
262	$updated = false;
263
264	// Don't directly loop through $input as it does not include as deselected checkboxes.
265	foreach ( get_settings_fields() as $section_id => $fields ) {
266	foreach ( $fields as $field_id => $field ) {
267
268	// Fetch the corresponding input value from the posted data.
269	$input_value = isset( $input[ $section_id ][ $field_id ] ) ? $input[ $section_id ][ $field_id ] : null;
270
271	// Attempt to sanitize the setting value.
272	$sanitized_value = sanitize_setting_value( $field, $input_value );
273
274	if ( ! is_null( $sanitized_value ) && $settings[ $section_id ][ $field_id ] !== $sanitized_value ) {
275	$settings[ $section_id ][ $field_id ] = $sanitized_value;
276	$updated = true;
277	}
278	}
279	}
280
281	wp_cache_delete( CACHE_KEY );
282
283	// Add an updated message.
284	if ( $updated ) {
285	add_settings_error(
286	'code-snippets-settings-notices',
287	'settings-saved',
288	__( 'Settings saved.', 'code-snippets' ),
289	'updated'
290	);
291	}
292
293	return $settings;
294	}
295