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HTML Forms – Simple WordPress Forms Plugin / 1.3.20
HTML Forms – Simple WordPress Forms Plugin v1.3.20
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html-forms / src / functions.php

functions.php in HTML Forms – Simple WordPress Forms Plugin 1.3.20, at src/functions.php

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1 <?php
2
3 use HTML_Forms\Form;
4 use HTML_Forms\Submission;
5
6 /**
7 * @param array $args
8 * @return array
9 */
10 function hf_get_forms( array $args = array() ) {
11 $default_args = array(
12 'post_type' => 'html-form',
13 'post_status' => array( 'publish', 'draft', 'pending', 'future' ),
14 'posts_per_page' => -1,
15 'ignore_sticky_posts' => true,
16 'no_found_rows' => true,
17 );
18 $args = array_merge( $default_args, $args );
19 $query = new WP_Query;
20 $posts = $query->query( $args );
21 $forms = array_map( 'hf_get_form', $posts );
22 return $forms;
23 }
24
25 /**
26 * @param $form_id_or_slug int|string|WP_Post
27 * @return Form
28 * @throws Exception
29 */
30 function hf_get_form( $form_id_or_slug ) {
31
32 if ( is_numeric( $form_id_or_slug ) || $form_id_or_slug instanceof WP_Post ) {
33 $post = get_post( $form_id_or_slug );
34
35 if ( ! $post instanceof WP_Post || $post->post_type !== 'html-form' ) {
36 throw new Exception( 'Invalid form ID' );
37 }
38 } else {
39
40 $query = new WP_Query;
41 $posts = $query->query(
42 array(
43 'post_type' => 'html-form',
44 'name' => $form_id_or_slug,
45 'post_status' => 'publish',
46 'posts_per_page' => 1,
47 'ignore_sticky_posts' => true,
48 'no_found_rows' => true,
49 )
50 );
51 if ( empty( $posts ) ) {
52 throw new Exception( 'Invalid form slug' );
53 }
54 $post = $posts[0];
55 }
56
57 // get all post meta in a single call for performance
58 $post_meta = get_post_meta( $post->ID );
59
60 // grab & merge form settings
61 $default_settings = array(
62 'save_submissions' => 1,
63 'hide_after_success' => 0,
64 'redirect_url' => '',
65 'required_fields' => '',
66 'email_fields' => '',
67 );
68 $default_settings = apply_filters( 'hf_form_default_settings', $default_settings );
69 $settings = array();
70 if ( ! empty( $post_meta['_hf_settings'][0] ) ) {
71 $settings = (array) maybe_unserialize( $post_meta['_hf_settings'][0] );
72 }
73 $settings = array_merge( $default_settings, $settings );
74
75 // grab & merge form messages
76 $default_messages = array(
77 'success' => __( 'Thank you! We will be in touch soon.', 'html-forms' ),
78 'invalid_email' => __( 'Sorry, that email address looks invalid.', 'html-forms' ),
79 'required_field_missing' => __( 'Please fill in the required fields.', 'html-forms' ),
80 'error' => __( 'Oops. An error occurred.', 'html-forms' ),
81 );
82 $default_messages = apply_filters( 'hf_form_default_messages', $default_messages );
83 $messages = array();
84 foreach ( $post_meta as $meta_key => $meta_values ) {
85 if ( strpos( $meta_key, 'hf_message_' ) === 0 ) {
86 $message_key = substr( $meta_key, strlen( 'hf_message_' ) );
87 $messages[ $message_key ] = (string) $meta_values[0];
88 }
89 }
90 $messages = array_merge( $default_messages, $messages );
91
92 // finally, create form instance
93 $form = new Form( $post->ID );
94 $form->title = $post->post_title;
95 $form->slug = $post->post_name;
96 $form->markup = $post->post_content;
97 $form->settings = $settings;
98 $form->messages = $messages;
99 return $form;
100 }
101
102 /**
103 * @param $form_id
104 * @param array $args
105 * @return Submission[]
106 */
107 function hf_get_form_submissions( $form_id, array $args = array() ) {
108 $default_args = array(
109 'offset' => 0,
110 'limit' => 1000,
111 );
112 $args = array_merge( $default_args, $args );
113
114 global $wpdb;
115 $table = $wpdb->prefix . 'hf_submissions';
116 $results = $wpdb->get_results( $wpdb->prepare( "SELECT s.* FROM {$table} s WHERE s.form_id = %d ORDER BY s.submitted_at DESC LIMIT %d, %d;", $form_id, $args['offset'], $args['limit'] ), OBJECT_K );
117 $submissions = array();
118 foreach ( $results as $key => $object ) {
119 $submission = Submission::from_object( $object );
120 $submissions[ $key ] = $submission;
121 }
122 return $submissions;
123 }
124
125 /**
126 * @param int $submission_id
127 * @return Submission
128 */
129 function hf_get_form_submission( $submission_id ) {
130 global $wpdb;
131 $table = $wpdb->prefix . 'hf_submissions';
132 $object = $wpdb->get_row( $wpdb->prepare( "SELECT s.* FROM {$table} s WHERE s.id = %d;", $submission_id ), OBJECT );
133 $submission = Submission::from_object( $object );
134 return $submission;
135 }
136 /**
137 * @return array
138 */
139 function hf_get_settings() {
140 $default_settings = array(
141 'load_stylesheet' => 0,
142 );
143
144 $settings = get_option( 'hf_settings', null );
145
146 // prevent a SQL query when option does not yet exist
147 if ( $settings === null ) {
148 update_option( 'hf_settings', array(), true );
149 $settings = array();
150 }
151
152 // merge with default settings
153 $settings = array_merge( $default_settings, $settings );
154
155 /**
156 * Filters the global HTML Forms hf_settings
157 *
158 * @param array $settings
159 */
160 $settings = apply_filters( 'hf_settings', $settings );
161
162 return $settings;
163 }
164
165 /**
166 * Get element from array, allows for dot notation eg: "foo.bar"
167 *
168 * @param array $array
169 * @param string $key
170 * @param mixed $default
171 * @return mixed
172 */
173 function hf_array_get( $array, $key, $default = null ) {
174 if ( is_null( $key ) ) {
175 return $array;
176 }
177
178 if ( isset( $array[ $key ] ) ) {
179 return $array[ $key ];
180 }
181
182 foreach ( explode( '.', $key ) as $segment ) {
183 if ( ! is_array( $array ) || ! array_key_exists( $segment, $array ) ) {
184 return $default;
185 }
186
187 $array = $array[ $segment ];
188 }
189
190 return $array;
191 }
192
193 /**
194 * Processes template tags like {{user.user_email}}
195 *
196 * @param string $template
197 *
198 * @return string
199 */
200 function hf_template( $template ) {
201 $replacers = new HTML_Forms\TagReplacers();
202 $tags = array(
203 'user' => array( $replacers, 'user' ),
204 'post' => array( $replacers, 'post' ),
205 'url_params' => array( $replacers, 'url_params' ),
206 );
207
208 /**
209 * Filters the available tags in HTML Forms templates, like {{user.user_email}}.
210 *
211 * Can be used to add simple scalar replacements or more advanced replacement functions that accept a parameter.
212 *
213 * @param array $tags
214 */
215 $tags = apply_filters( 'hf_template_tags', $tags );
216
217 $template = preg_replace_callback(
218 '/\{\{ *(\w+)(?:\.([\w\.]+))? *(?:\|\| *(\w+))? *\}\}/',
219 function( $matches ) use ( $tags ) {
220 $tag = $matches[1];
221 $param = ! isset( $matches[2] ) ? '' : $matches[2];
222 $default = ! isset( $matches[3] ) ? '' : $matches[3];
223
224 // do not change anything if we have no replacer with that key, could be custom user logic or another plugin.
225 if ( ! isset( $tags[ $tag ] ) ) {
226 return $matches[0];
227 }
228
229 $replacement = $tags[ $tag ];
230 $value = is_callable( $replacement ) ? call_user_func_array( $replacement, array( $param ) ) : $replacement;
231 return ! empty( $value ) ? $value : $default;
232 },
233 $template
234 );
235
236 return $template;
237 }
238
239 /**
240 * @param string $string
241 * @param array $data
242 * @param Closure|string $escape_function
243 * @return string
244 */
245 function hf_replace_data_variables( $string, $data = array(), $escape_function = null ) {
246 $string = preg_replace_callback(
247 '/\[([a-zA-Z0-9\-\._]+)\]/',
248 function( $matches ) use ( $data, $escape_function ) {
249 $key = $matches[1];
250 $replacement = hf_array_get( $data, $key, '' );
251 $replacement = hf_field_value( $replacement, 0, $escape_function );
252 return $replacement;
253 },
254 $string
255 );
256 return $string;
257 }
258
259 /**
260 * Returns a formatted & HTML-escaped field value. Detects file-, array- and date-types.
261 *
262 * Caveat: if value is a file, an HTML string is returned (which means email action should use "Content-Type: html" when it includes a file field).
263 *
264 * @param string|array $value
265 * @param int $limit
266 * @param Closure|string $escape_function
267 * @return string
268 * @since 1.3.1
269 */
270 function hf_field_value( $value, $limit = 0, $escape_function = 'esc_html' ) {
271 if ( $value === '' ) {
272 return $value;
273 }
274
275 if ( hf_is_file( $value ) ) {
276 $file_url = isset( $value['url'] ) ? $value['url'] : '';
277 if ( isset( $value['attachment_id'] ) && apply_filters( 'hf_file_upload_use_direct_links', false ) === false ) {
278 $file_url = admin_url( sprintf( 'post.php?action=edit&post=%d', $value['attachment_id'] ) );
279 }
280 $short_name = substr( $value['name'], 0, 20 );
281 $suffix = strlen( $value['name'] ) > 20 ? '...' : '';
282 return sprintf( '<a href="%s">%s%s</a> (%s)', esc_attr( $file_url ), esc_html( $short_name ), esc_html( $suffix ), hf_human_filesize( $value['size'] ) );
283 }
284
285 if ( hf_is_date( $value ) ) {
286 $date_format = get_option( 'date_format' );
287 return gmdate( $date_format, strtotime( $value ) );
288 }
289
290 // join array-values with comma
291 if ( is_array( $value ) ) {
292 $value = join( ', ', $value );
293 }
294
295 // limit string to certain length
296 if ( $limit > 0 ) {
297 $limited = strlen( $value ) > $limit;
298 $value = substr( $value, 0, $limit );
299
300 if ( $limited ) {
301 $value .= '...';
302 }
303 }
304
305 // escape value
306 if ( $escape_function !== null && is_callable( $escape_function ) ) {
307 $value = $escape_function( $value );
308 }
309
310 return $value;
311 }
312
313 /**
314 * Returns true if value is a "file"
315 *
316 * @param mixed $value
317 * @return bool
318 */
319 function hf_is_file( $value ) {
320 return is_array( $value )
321 && isset( $value['name'] )
322 && isset( $value['size'] )
323 && isset( $value['type'] );
324 }
325
326 /**
327 * Returns true if value looks like a date-string submitted from a <input type="date">
328 * @param mixed $value
329 * @return bool
330 * @since 1.3.1
331 */
332 function hf_is_date( $value ) {
333
334 if ( ! is_string( $value )
335 || strlen( $value ) !== 10
336 || (int) preg_match( '/\d{2,4}[-\/]\d{2}[-\/]\d{2,4}/', $value ) === 0 ) {
337 return false;
338 }
339
340 $timestamp = strtotime( $value );
341 return $timestamp != false;
342 }
343
344 /**
345 * @param int $size
346 * @param int $precision
347 * @return string
348 */
349 function hf_human_filesize( $size, $precision = 2 ) {
350 for ( $i = 0; ( $size / 1024 ) > 0.9; $i++, $size /= 1024 ) {
351 // nothing, loop logic contains everything
352 }
353 $steps = array( 'B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB' );
354 return round( $size, $precision ) . $steps[ $i ];
355 }
356
357 /**
358 * Gets all the form tabs to show in the admin.
359 * @param Form $form
360 * @return array
361 */
362 function hf_get_admin_tabs( Form $form ) {
363 $tabs = array(
364 'fields' => __( 'Fields', 'html-forms' ),
365 'messages' => __( 'Messages', 'html-forms' ),
366 'settings' => __( 'Settings', 'html-forms' ),
367 'actions' => __( 'Actions', 'html-forms' ),
368 );
369
370 if ( $form->settings['save_submissions'] ) {
371 $tabs['submissions'] = __( 'Submissions', 'html-forms' );
372 }
373 return apply_filters( 'hf_admin_tabs', $tabs, $form );
374 }
375