charitable / includes / utilities / class-charitable-data-processor.php

class-charitable-data-processor.php in Charitable – Donation & Fundraising Platform (Donation Forms, Recurring Donations & Fundraising Campaigns) 1.6.28, at includes/utilities/class-charitable-data-processor.php

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1	<?php
2	/**
3	* Responsible for accepting a set of raw data, such as form submission data,
4	* and sanitizing and normalizing that data, depending on its data type and
5	* the type of data (text, checkbox, etc.).
6	*
7	* @package Charitable/Classes/Charitable_Data_Processor
8	* @author Eric Daams
9	* @copyright Copyright (c) 2019, Studio 164a
10	* @license http://opensource.org/licenses/gpl-2.0.php GNU Public License
11	* @since 1.5.9
12	* @version 1.5.9
13	*/
14
15	// Exit if accessed directly.
16	if ( ! defined( 'ABSPATH' ) ) {
17	exit;
18	}
19
20
21	if ( ! class_exists( 'Charitable_Data_Processor' ) ) :
22
23	/**
24	* Data processor class.
25	*
26	* @since 1.5.9
27	*/
28	class Charitable_Data_Processor {
29	/**
30	* The raw input data.
31	*
32	* @since 1.5.9
33	*
34	* @var array
35	*/
36	protected $data;
37
38	/**
39	* The map of fields.
40	*
41	* @since 1.5.9
42	*
43	* @var array
44	*/
45	protected $fields;
46
47	/**
48	* This is the output data. It has the same structure
49	* as the map of fields, but has the sanitized &
50	* normalized values from the input data.
51	*
52	* @since 1.5.9
53	*
54	* @var array
55	*/
56	protected $output;
57
58	/**
59	* Instantiate the formatter with a dataset and array of fields.
60	*
61	* @since 1.5.9
62	*
63	* @param array $data The raw input data.
64	* @param array $fields The map of fields.
65	*/
66	public function __construct( $data, $fields ) {
67	$this->data = $data;
68	$this->fields = $fields;
69	$this->output = array();
70	$this->invalid = false;
71
72	$this->process_data( $this->fields );
73	}
74
75	/**
76	* Returns whether the data is valid.
77	*
78	* @since 1.5.9
79	*
80	* @return boolean
81	*/
82	public function is_valid() {
83	return false == $this->invalid;
84	}
85
86	/**
87	* Return a single field's output data.
88	*
89	* @since 1.5.9
90	*
91	* @param string $key The field key.
92	* @param string\|false $data_type Optional. The data type.
93	* @return mixed\|null
94	*/
95	public function get( $key, $data_type = false ) {
96	if ( $data_type ) {
97	return $this->get_from_data_type( $key, $data_type );
98	}
99
100	return isset( $this->output[ $key ] ) ? $this->output[ $key ] : null;
101	}
102
103	/**
104	* Return a single field's output data, from a data type.
105	*
106	* @since 1.5.9
107	*
108	* @param string $key The field key.
109	* @param string $data_type The data type.
110	* @return mixed\|null
111	*/
112	public function get_from_data_type( $key, $data_type ) {
113	return isset( $this->output[ $data_type ][ $key ] ) ? $this->output[ $data_type ][ $key ] : null;
114	}
115
116	/**
117	* Returns the full output array.
118	*
119	* @since 1.5.9
120	*
121	* @return array
122	*/
123	public function output() {
124	return $this->output;
125	}
126
127	/**
128	* Process an array of fields.
129	*
130	* @since 1.5.9
131	*
132	* @param array $fields Map of fields.
133	* @param false\|string $data_type Optional. Data type.
134	* @return void
135	*/
136	protected function process_data( $fields, $data_type = false ) {
137	$data = array();
138
139	foreach ( $fields as $key => $type ) {
140	if ( is_array( $type ) ) {
141	$this->process_data( $type, $key );
142	continue;
143	}
144
145	$data[ $key ] = $this->process_field( $key, $type, $data_type );
146	}
147
148	if ( ! empty( $data ) ) {
149	$this->set_output( $data, $data_type );
150	}
151	}
152
153	/**
154	* Add a set of data to the output array.
155	*
156	* @since 1.5.9
157	*
158	* @param array $data The processed data.
159	* @param false\|string $data_type Optional. Data type.
160	* @return void
161	*/
162	protected function set_output( $data, $data_type = false ) {
163	if ( $data_type ) {
164	$this->output[ $data_type ] = $data;
165	} else {
166	$this->output = $data;
167	}
168	}
169
170	/**
171	* Apply the correct function to a field, based on the type of function
172	* and the key, type and data type of the field.
173	*
174	* @since 1.5.9
175	*
176	* @param array $functions Stack of functions, in order of priority, with $args
177	* passed as the value of the function.
178	* @param mixed $default The default value to return if none of the functions exist.
179	* @return mixed\|null
180	*/
181	protected function apply_function_to_field( $functions, $default = '' ) {
182	foreach ( $functions as $function => $args ) {
183	if ( method_exists( $this, $function ) ) {
184	return call_user_func_array( array( $this, $function ), $args );
185	}
186	}
187
188	return $default;
189	}
190
191	/**
192	* Process a single field, returning the set value or null.
193	*
194	* @since 1.5.9
195	*
196	* @param string $key The field key.
197	* @param string $type The type of field.
198	* @param string\|false $data_type Optional. The data type.
199	* @return mixed\|null The set value of the field, or NULL if the
200	* field was not contained in the data.
201	*/
202	protected function process_field( $key, $type, $data_type = false ) {
203	/* Retrieve the value. */
204	$value = $this->apply_function_to_field(
205	array(
206	'process_' . $key => array( $type, $data_type ),
207	'process_' . $data_type => array( $key, $type ),
208	'process_' . $type => array( $key, $data_type ),
209	'process_generic_field' => array( $key ),
210	)
211	);
212
213	/* Return the value after it is sanitized. */
214	return $this->apply_function_to_field(
215	array(
216	'sanitize_' . $key => array( $value, $type, $data_type ),
217	'sanitize_' . $data_type => array( $value, $key, $type ),
218	'sanitize_' . $type => array( $value, $key, $data_type ),
219	),
220	$value
221	);
222	}
223
224	/**
225	* Process a generic field. i.e. One that hasn't been processed
226	* by any of the other processors.
227	*
228	* @since 1.5.9
229	*
230	* @param string $key The field key.
231	* @return mixed\|null The set value of the field, or NULL if the
232	* field was not contained in the data.
233	*/
234	public function process_generic_field( $key ) {
235	return array_key_exists( $key, $this->data ) ? $this->data[ $key ] : null;
236	}
237
238	/**
239	* Process a checkbox field.
240	*
241	* @since 1.5.9
242	*
243	* @param string $key The field key.
244	* @return int\|string Returns 0 if the checkbox was not checked, or the
245	* value of the checkbox if checked.
246	*/
247	protected function process_checkbox( $key ) {
248	return array_key_exists( $key, $this->data ) ? $this->data[ $key ] : 0;
249	}
250
251	/**
252	* Process a picture field.
253	*
254	* @since 1.5.9
255	*
256	* @param string $key The key of the picture field.
257	* @return int\|false
258	*/
259	protected function process_picture( $key ) {
260	$value = array_key_exists( $key, $this->data ) ? $this->data[ $key ] : '';
261
262	/**
263	* If Javascript is enabled, we do not expect to have a $_FILES array with the
264	* picture, as the upload was already handled client-side.
265	*/
266	if ( ! $this->picture_file_exists( $key ) ) {
267	return $value;
268	}
269
270	$value = $this->upload_attachment( $key );
271
272	if ( is_wp_error( $value ) ) {
273	charitable_get_notices()->add_errors_from_wp_error( $value );
274	$value = '';
275	$this->invalid = true;
276	}
277
278	return $value;
279	}
280
281	/**
282	* Sanitize a number.
283	*
284	* @since 1.5.9
285	*
286	* @param string\|int $value The number to be sanitized.
287	* @return int
288	*/
289	protected function sanitize_number( $value ) {
290	return intval( $value );
291	}
292
293	/**
294	* Sanitize a value received from a datepicker.
295	*
296	* @since 1.5.9
297	*
298	* @param string $value The datepicker value.
299	* @return string\|int If a date was chosen, returns the date in YYYY-MM-DD format.
300	* Otherwise, returns 0.
301	*/
302	protected function sanitize_datepicker( $value ) {
303	if ( empty( $value ) ) {
304	return 0;
305	}
306
307	return charitable_sanitize_date( $value, 'Y-m-d' );
308	}
309
310	/**
311	* Returns true if a file was found for the picture in the $_FILES array.
312	*
313	* @since 1.5.9
314	*
315	* @param string $key The picture file key.
316	* @return boolean
317	*/
318	protected function picture_file_exists( $key ) {
319	return isset( $_FILES ) && isset( $_FILES[ $key ] );
320	}
321
322	/**
323	* Uploads a file and attaches it to the given post.
324	*
325	* @since 1.5.9
326	*
327	* @param string $file_key Key of the file input.
328	* @param int $post_id Post ID.
329	* @return int\|WP_Error ID of the attachment or a WP_Error object on failure.
330	*/
331	public function upload_attachment( $file_key, $post_id = 0 ) {
332	require_once( ABSPATH . 'wp-admin/includes/image.php' );
333	require_once( ABSPATH . 'wp-admin/includes/file.php' );
334	require_once( ABSPATH . 'wp-admin/includes/media.php' );
335
336	$overrides = $this->get_file_overrides( $file_key, $overrides );
337
338	return media_handle_upload( $file_key, $post_id, array(), $overrides );
339	}
340
341	/**
342	* Return overrides array for use with upload_attachment() methods.
343	*
344	* @since 1.0.0
345	*
346	* @param string $file_key Reference to a single element of `$_FILES`. Call the
347	* function once for each uploaded file.
348	* @param array $overrides Optional. An associative array of names=>values to
349	* override default variables. Default false.
350	* @return array
351	*/
352	protected function get_file_overrides( $file_key, $overrides = array() ) {
353	$allowed_mimes = array(
354	'jpg\|jpeg\|jpe' => 'image/jpeg',
355	'gif' => 'image/gif',
356	'png' => 'image/png',
357	'bmp' => 'image/bmp',
358	'tif\|tiff' => 'image/tiff',
359	'ico' => 'image/x-icon',
360	);
361
362	$defaults = array(
363	'test_form' => false,
364	'mimes' => apply_filters( 'charitable_file_' . $file_key . '_allowed_mimes', $allowed_mimes ),
365	);
366
367	$overrides = wp_parse_args( $overrides, $defaults );
368
369	return $overrides;
370	}
371	}
372
373	endif;
374