| 1 |
<?php |
| 2 |
|
| 3 |
namespace Boxzilla; |
| 4 |
|
| 5 |
class BoxLoader |
| 6 |
{ |
| 7 |
/** |
| 8 |
* @var Plugin |
| 9 |
*/ |
| 10 |
private $plugin; |
| 11 |
|
| 12 |
/** |
| 13 |
* @var array |
| 14 |
*/ |
| 15 |
private $box_ids_to_load = []; |
| 16 |
|
| 17 |
/** |
| 18 |
* @var array |
| 19 |
*/ |
| 20 |
protected $options; |
| 21 |
|
| 22 |
/** |
| 23 |
* Constructor |
| 24 |
* |
| 25 |
* @param Plugin $plugin |
| 26 |
* @param array $options |
| 27 |
*/ |
| 28 |
public function __construct(Plugin $plugin, array $options) |
| 29 |
{ |
| 30 |
$this->plugin = $plugin; |
| 31 |
$this->options = $options; |
| 32 |
} |
| 33 |
|
| 34 |
/** |
| 35 |
* Initializes the plugin, runs on `wp` hook. |
| 36 |
*/ |
| 37 |
public function init() |
| 38 |
{ |
| 39 |
$this->box_ids_to_load = $this->filter_boxes(); |
| 40 |
|
| 41 |
// Only add other hooks if necessary |
| 42 |
add_action('wp_head', [$this, 'print_preload_js'], 10, 0); |
| 43 |
if (count($this->box_ids_to_load) > 0) { |
| 44 |
add_action('wp_footer', [ $this, 'print_boxes_content' ], 1); |
| 45 |
add_action('wp_enqueue_scripts', [ $this, 'load_assets' ], 90); |
| 46 |
} |
| 47 |
} |
| 48 |
|
| 49 |
/** |
| 50 |
* Prints the preload API so that the Boxzilla JS API can be used before Boxzilla itself is loaded |
| 51 |
* This allows us to defer the Boxzilla script itself. |
| 52 |
*/ |
| 53 |
public function print_preload_js(): void |
| 54 |
{ |
| 55 |
echo '<script>'; |
| 56 |
include BOXZILLA_DIR . '/assets/js/preload.js'; |
| 57 |
echo '</script>'; |
| 58 |
} |
| 59 |
|
| 60 |
/** |
| 61 |
* Get global rules for all boxes |
| 62 |
* |
| 63 |
* @return array |
| 64 |
*/ |
| 65 |
protected function get_filter_rules(): array |
| 66 |
{ |
| 67 |
$rules = get_option('boxzilla_rules', []); |
| 68 |
return is_array($rules) ? $rules : []; |
| 69 |
} |
| 70 |
|
| 71 |
|
| 72 |
/** |
| 73 |
* Match a string against an array of patterns, glob-style. |
| 74 |
* |
| 75 |
* @param string $string |
| 76 |
* @param array $patterns |
| 77 |
* @param bool $contains |
| 78 |
* @return bool |
| 79 |
*/ |
| 80 |
protected function match_patterns($string, array $patterns, $contains = false) |
| 81 |
{ |
| 82 |
$string = strtolower($string); |
| 83 |
|
| 84 |
foreach ($patterns as $pattern) { |
| 85 |
$pattern = rtrim($pattern, '/'); |
| 86 |
$pattern = strtolower($pattern); |
| 87 |
|
| 88 |
if ($contains) { |
| 89 |
// contains means we should do a simple occurrence check |
| 90 |
// does not support wildcards |
| 91 |
$match = strpos($string, $pattern) !== false; |
| 92 |
} elseif (function_exists('fnmatch')) { |
| 93 |
$match = fnmatch($pattern, $string); |
| 94 |
} else { |
| 95 |
$match = ( $pattern === $string ); |
| 96 |
} |
| 97 |
|
| 98 |
if ($match) { |
| 99 |
return true; |
| 100 |
} |
| 101 |
} |
| 102 |
|
| 103 |
return false; |
| 104 |
} |
| 105 |
|
| 106 |
/** |
| 107 |
* @return string |
| 108 |
*/ |
| 109 |
protected function get_request_url() |
| 110 |
{ |
| 111 |
return \boxzilla_normalize_relative_url(isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '/'); |
| 112 |
} |
| 113 |
|
| 114 |
/** |
| 115 |
* Check if this rule passes (conditional matches expected value) |
| 116 |
* |
| 117 |
* @param string $condition |
| 118 |
* @param string $value |
| 119 |
* @param boolean $qualifier |
| 120 |
* |
| 121 |
* @return bool |
| 122 |
*/ |
| 123 |
protected function match_rule($condition, $value, $qualifier = true) |
| 124 |
{ |
| 125 |
$matched = false; |
| 126 |
|
| 127 |
// cast value to array & trim whitespace or excess comma's |
| 128 |
$values = array_map('trim', explode(',', rtrim(trim($value), ','))); |
| 129 |
|
| 130 |
switch ($condition) { |
| 131 |
case 'everywhere': |
| 132 |
$matched = true; |
| 133 |
break; |
| 134 |
|
| 135 |
case 'is_url': |
| 136 |
$url = $this->get_request_url(); |
| 137 |
$matched = $this->match_patterns($url, $values, $qualifier === 'contains' || $qualifier === 'not_contains'); |
| 138 |
break; |
| 139 |
|
| 140 |
case 'is_referer': |
| 141 |
if (! empty($_SERVER['HTTP_REFERER'])) { |
| 142 |
$referer = $_SERVER['HTTP_REFERER']; |
| 143 |
$matched = $this->match_patterns($referer, $values, $qualifier === 'contains' || $qualifier === 'not_contains'); |
| 144 |
} |
| 145 |
break; |
| 146 |
|
| 147 |
case 'is_post_type': |
| 148 |
$post_type = (string) get_post_type(); |
| 149 |
$matched = in_array($post_type, $values, true); |
| 150 |
break; |
| 151 |
|
| 152 |
case 'is_single': |
| 153 |
case 'is_post': |
| 154 |
// convert to empty string if array with just empty string in it |
| 155 |
$value = ( $values === [ '' ] ) ? '' : $values; |
| 156 |
$matched = is_single($value); |
| 157 |
break; |
| 158 |
|
| 159 |
case 'is_post_in_category': |
| 160 |
$matched = is_singular() && has_category($values); |
| 161 |
break; |
| 162 |
|
| 163 |
case 'is_page': |
| 164 |
$matched = is_page($values); |
| 165 |
break; |
| 166 |
|
| 167 |
case 'is_post_with_tag': |
| 168 |
$matched = is_singular() && has_tag($values); |
| 169 |
break; |
| 170 |
|
| 171 |
case 'is_user_logged_in': |
| 172 |
$matched = is_user_logged_in(); |
| 173 |
break; |
| 174 |
} |
| 175 |
|
| 176 |
/** |
| 177 |
* Filters whether a given box rule matches the condition and expected value. |
| 178 |
* |
| 179 |
* The dynamic portion of the hook, `$condition`, refers to the condition being matched. |
| 180 |
* |
| 181 |
* @param boolean $matched |
| 182 |
* @param array $values |
| 183 |
*/ |
| 184 |
$matched = apply_filters('boxzilla_box_rule_matches_' . $condition, $matched, $values); |
| 185 |
|
| 186 |
// if qualifier is set to false, we need to reverse this value here. |
| 187 |
if (! $qualifier || $qualifier === 'not_contains') { |
| 188 |
$matched = ! $matched; |
| 189 |
} |
| 190 |
|
| 191 |
return $matched; |
| 192 |
} |
| 193 |
|
| 194 |
/** |
| 195 |
* Checks which boxes should be loaded for this request. |
| 196 |
* |
| 197 |
* @return array |
| 198 |
*/ |
| 199 |
private function filter_boxes() |
| 200 |
{ |
| 201 |
$box_ids_to_load = []; |
| 202 |
$rules = $this->get_filter_rules(); |
| 203 |
|
| 204 |
foreach ($rules as $box_id => $box_rules) { |
| 205 |
$matched = false; |
| 206 |
$comparision = isset($box_rules['comparision']) ? $box_rules['comparision'] : 'any'; |
| 207 |
|
| 208 |
// loop through all rules for all boxes |
| 209 |
foreach ($box_rules as $rule) { |
| 210 |
// skip faulty values (and comparision rule) |
| 211 |
if (! is_array($rule) || empty($rule['condition'])) { |
| 212 |
continue; |
| 213 |
} |
| 214 |
|
| 215 |
$qualifier = isset($rule['qualifier']) ? $rule['qualifier'] : true; |
| 216 |
$matched = $this->match_rule($rule['condition'], $rule['value'], $qualifier); |
| 217 |
|
| 218 |
// break out of loop if we've already matched |
| 219 |
if ($comparision === 'any' && $matched) { |
| 220 |
break; |
| 221 |
} |
| 222 |
|
| 223 |
// no need to continue if this rule didn't match |
| 224 |
if ($comparision === 'all' && ! $matched) { |
| 225 |
break; |
| 226 |
} |
| 227 |
} |
| 228 |
|
| 229 |
// value of $matched at this point determines whether box should be loaded |
| 230 |
$load_box = $matched; |
| 231 |
|
| 232 |
/** |
| 233 |
* Filters whether a box should be loaded into the page HTML. |
| 234 |
* |
| 235 |
* The dynamic portion of the hook, `$box_id`, refers to the ID of the box. Return true if you want to output the box. |
| 236 |
* |
| 237 |
* @param boolean $load_box |
| 238 |
*/ |
| 239 |
$load_box = apply_filters('boxzilla_load_box_' . $box_id, $load_box); |
| 240 |
|
| 241 |
/** |
| 242 |
* Filters whether a box should be loaded into the page HTML. |
| 243 |
* |
| 244 |
* @param boolean $load_box |
| 245 |
* @param int $box_id |
| 246 |
*/ |
| 247 |
$load_box = apply_filters('boxzilla_load_box', $load_box, $box_id); |
| 248 |
|
| 249 |
// if matched, box should be loaded on this page |
| 250 |
if ($load_box) { |
| 251 |
$box_ids_to_load[] = $box_id; |
| 252 |
} |
| 253 |
} |
| 254 |
|
| 255 |
/** |
| 256 |
* Filters which boxes should be loaded on this page, expects an array of post ID's. |
| 257 |
* |
| 258 |
* @param array $box_ids_to_load |
| 259 |
*/ |
| 260 |
return apply_filters('boxzilla_load_boxes', $box_ids_to_load); |
| 261 |
} |
| 262 |
|
| 263 |
/** |
| 264 |
* Load plugin styles |
| 265 |
*/ |
| 266 |
public function load_assets() |
| 267 |
{ |
| 268 |
wp_enqueue_style('boxzilla', $this->plugin->url('/assets/css/styles.css'), [], $this->plugin->version()); |
| 269 |
wp_enqueue_script('boxzilla', $this->plugin->url('/assets/js/script.js'), [], $this->plugin->version(), [ |
| 270 |
'strategy' => 'defer', |
| 271 |
'in_footer' => true, |
| 272 |
]); |
| 273 |
|
| 274 |
// create boxzilla_Global_Options object |
| 275 |
$plugin_options = $this->options; |
| 276 |
$boxes = $this->get_matched_boxes(); |
| 277 |
|
| 278 |
$data = [ |
| 279 |
'testMode' => (bool) $plugin_options['test_mode'], |
| 280 |
'boxes' => (array) array_map( |
| 281 |
function (Box $box) { |
| 282 |
return $box->get_client_options(); |
| 283 |
}, |
| 284 |
$boxes |
| 285 |
), |
| 286 |
]; |
| 287 |
|
| 288 |
wp_localize_script('boxzilla', 'boxzilla_options', $data); |
| 289 |
|
| 290 |
do_action('boxzilla_load_assets', $this); |
| 291 |
} |
| 292 |
|
| 293 |
public function print_boxes_content() |
| 294 |
{ |
| 295 |
$boxes = $this->get_matched_boxes(); |
| 296 |
if (empty($boxes)) { |
| 297 |
return; |
| 298 |
} |
| 299 |
|
| 300 |
echo '<div style="display: none;">'; |
| 301 |
foreach ($boxes as $box) { |
| 302 |
echo "<div id=\"boxzilla-box-{$box->ID}-content\">", $box->get_content(), "</div>"; |
| 303 |
} |
| 304 |
echo '</div>'; |
| 305 |
} |
| 306 |
|
| 307 |
/** |
| 308 |
* Get an array of Box objects. These are the boxes that will be loaded for the current request. |
| 309 |
* |
| 310 |
* @return Box[] |
| 311 |
*/ |
| 312 |
public function get_matched_boxes() |
| 313 |
{ |
| 314 |
static $boxes; |
| 315 |
|
| 316 |
if (is_null($boxes)) { |
| 317 |
if (count($this->box_ids_to_load) === 0) { |
| 318 |
return []; |
| 319 |
} |
| 320 |
|
| 321 |
// query Box posts |
| 322 |
$q = new \WP_Query(); |
| 323 |
$posts = $q->query( |
| 324 |
[ |
| 325 |
'post_type' => 'boxzilla-box', |
| 326 |
'post_status' => 'publish', |
| 327 |
'post__in' => $this->box_ids_to_load, |
| 328 |
'posts_per_page' => count($this->box_ids_to_load), |
| 329 |
'ignore_sticky_posts' => true, |
| 330 |
'no_found_rows' => true, |
| 331 |
] |
| 332 |
); |
| 333 |
|
| 334 |
// create `Box` instances out of \WP_Post instances |
| 335 |
$boxes = []; |
| 336 |
foreach ($posts as $key => $post) { |
| 337 |
$box = new Box($post); |
| 338 |
|
| 339 |
// skip boxes without any content |
| 340 |
if ($box->get_content() === '') { |
| 341 |
continue; |
| 342 |
} |
| 343 |
|
| 344 |
$boxes[ $key ] = $box; |
| 345 |
} |
| 346 |
} |
| 347 |
|
| 348 |
return $boxes; |
| 349 |
} |
| 350 |
} |
| 351 |
|
