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validation.php
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submission.php
987 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Class representing contact form submission. |
| 5 | */ |
| 6 | class WPCF7_Submission { |
| 7 | |
| 8 | use WPCF7_PocketHolder; |
| 9 | |
| 10 | private static $instance; |
| 11 | |
| 12 | private $contact_form; |
| 13 | private $status = 'init'; |
| 14 | private $posted_data = array(); |
| 15 | private $posted_data_hash = null; |
| 16 | private $skip_spam_check = false; |
| 17 | private $uploaded_files = array(); |
| 18 | private $extra_attachments = array(); |
| 19 | private $skip_mail = false; |
| 20 | private $response = ''; |
| 21 | private $invalid_fields = array(); |
| 22 | private $meta = array(); |
| 23 | private $consent = array(); |
| 24 | private $spam_log = array(); |
| 25 | private $result_props = array(); |
| 26 | |
| 27 | |
| 28 | /** |
| 29 | * Returns the singleton instance of this class. |
| 30 | */ |
| 31 | public static function get_instance( $contact_form = null, $args = '' ) { |
| 32 | if ( $contact_form instanceof WPCF7_ContactForm ) { |
| 33 | if ( empty( self::$instance ) ) { |
| 34 | self::$instance = new self( $contact_form, $args ); |
| 35 | self::$instance->proceed(); |
| 36 | return self::$instance; |
| 37 | } else { |
| 38 | return null; |
| 39 | } |
| 40 | } else { |
| 41 | if ( empty( self::$instance ) ) { |
| 42 | return null; |
| 43 | } else { |
| 44 | return self::$instance; |
| 45 | } |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | |
| 50 | /** |
| 51 | * Returns true if this submission is created via WP REST API. |
| 52 | */ |
| 53 | public static function is_restful() { |
| 54 | return defined( 'REST_REQUEST' ) && REST_REQUEST; |
| 55 | } |
| 56 | |
| 57 | |
| 58 | /** |
| 59 | * Constructor. |
| 60 | */ |
| 61 | private function __construct( WPCF7_ContactForm $contact_form, $args = '' ) { |
| 62 | $args = wp_parse_args( $args, array( |
| 63 | 'skip_mail' => false, |
| 64 | ) ); |
| 65 | |
| 66 | $this->contact_form = $contact_form; |
| 67 | $this->skip_mail = (bool) $args['skip_mail']; |
| 68 | } |
| 69 | |
| 70 | |
| 71 | /** |
| 72 | * The main logic of submission. |
| 73 | */ |
| 74 | private function proceed() { |
| 75 | |
| 76 | $callback = function () { |
| 77 | $contact_form = $this->contact_form; |
| 78 | |
| 79 | $this->setup_meta_data(); |
| 80 | $this->setup_posted_data(); |
| 81 | |
| 82 | if ( $this->is( 'init' ) and ! $this->validate() ) { |
| 83 | $this->set_status( 'validation_failed' ); |
| 84 | $this->set_response( $contact_form->message( 'validation_error' ) ); |
| 85 | } |
| 86 | |
| 87 | if ( $this->is( 'init' ) and ! $this->accepted() ) { |
| 88 | $this->set_status( 'acceptance_missing' ); |
| 89 | $this->set_response( $contact_form->message( 'accept_terms' ) ); |
| 90 | } |
| 91 | |
| 92 | if ( $this->is( 'init' ) and $this->spam() ) { |
| 93 | $this->set_status( 'spam' ); |
| 94 | $this->set_response( $contact_form->message( 'spam' ) ); |
| 95 | } |
| 96 | |
| 97 | if ( $this->is( 'init' ) and ! $this->unship_uploaded_files() ) { |
| 98 | $this->set_status( 'validation_failed' ); |
| 99 | $this->set_response( $contact_form->message( 'validation_error' ) ); |
| 100 | } |
| 101 | |
| 102 | if ( $this->is( 'init' ) ) { |
| 103 | $abort = ! $this->before_send_mail(); |
| 104 | |
| 105 | if ( $abort ) { |
| 106 | if ( $this->is( 'init' ) ) { |
| 107 | $this->set_status( 'aborted' ); |
| 108 | } |
| 109 | |
| 110 | if ( '' === $this->get_response() ) { |
| 111 | $this->set_response( $contact_form->filter_message( |
| 112 | __( "Sending mail has been aborted.", 'contact-form-7' ) ) |
| 113 | ); |
| 114 | } |
| 115 | } elseif ( $this->mail() ) { |
| 116 | $this->set_status( 'mail_sent' ); |
| 117 | $this->set_response( $contact_form->message( 'mail_sent_ok' ) ); |
| 118 | |
| 119 | do_action( 'wpcf7_mail_sent', $contact_form ); |
| 120 | } else { |
| 121 | $this->set_status( 'mail_failed' ); |
| 122 | $this->set_response( $contact_form->message( 'mail_sent_ng' ) ); |
| 123 | |
| 124 | do_action( 'wpcf7_mail_failed', $contact_form ); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | $this->remove_uploaded_files(); |
| 129 | }; |
| 130 | |
| 131 | wpcf7_switch_locale( $this->contact_form->locale(), $callback ); |
| 132 | } |
| 133 | |
| 134 | |
| 135 | /** |
| 136 | * Returns the current status property. |
| 137 | */ |
| 138 | public function get_status() { |
| 139 | return $this->status; |
| 140 | } |
| 141 | |
| 142 | |
| 143 | /** |
| 144 | * Sets the status property. |
| 145 | * |
| 146 | * @param string $status The status. |
| 147 | */ |
| 148 | public function set_status( $status ) { |
| 149 | if ( preg_match( '/^[a-z][0-9a-z_]+$/', $status ) ) { |
| 150 | $this->status = $status; |
| 151 | return true; |
| 152 | } |
| 153 | |
| 154 | return false; |
| 155 | } |
| 156 | |
| 157 | |
| 158 | /** |
| 159 | * Returns true if the specified status is identical to the current |
| 160 | * status property. |
| 161 | * |
| 162 | * @param string $status The status to compare. |
| 163 | */ |
| 164 | public function is( $status ) { |
| 165 | return $this->status === $status; |
| 166 | } |
| 167 | |
| 168 | |
| 169 | /** |
| 170 | * Returns an associative array of submission result properties. |
| 171 | * |
| 172 | * @return array Submission result properties. |
| 173 | */ |
| 174 | public function get_result() { |
| 175 | $result = array_merge( $this->result_props, array( |
| 176 | 'status' => $this->get_status(), |
| 177 | 'message' => $this->get_response(), |
| 178 | ) ); |
| 179 | |
| 180 | if ( $this->is( 'validation_failed' ) ) { |
| 181 | $result['invalid_fields'] = $this->get_invalid_fields(); |
| 182 | } |
| 183 | |
| 184 | switch ( $this->get_status() ) { |
| 185 | case 'init': |
| 186 | case 'validation_failed': |
| 187 | case 'acceptance_missing': |
| 188 | case 'spam': |
| 189 | $result['posted_data_hash'] = ''; |
| 190 | break; |
| 191 | default: |
| 192 | $result['posted_data_hash'] = $this->get_posted_data_hash(); |
| 193 | break; |
| 194 | } |
| 195 | |
| 196 | $result = apply_filters( 'wpcf7_submission_result', $result, $this ); |
| 197 | |
| 198 | return $result; |
| 199 | } |
| 200 | |
| 201 | |
| 202 | /** |
| 203 | * Adds items to the array of submission result properties. |
| 204 | * |
| 205 | * @param string|array|object $args Value to add to result properties. |
| 206 | * @return array Added result properties. |
| 207 | */ |
| 208 | public function add_result_props( $args = '' ) { |
| 209 | $args = wp_parse_args( $args, array() ); |
| 210 | |
| 211 | $this->result_props = array_merge( $this->result_props, $args ); |
| 212 | |
| 213 | return $args; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | /** |
| 218 | * Retrieves the response property. |
| 219 | * |
| 220 | * @return string The current response property value. |
| 221 | */ |
| 222 | public function get_response() { |
| 223 | return $this->response; |
| 224 | } |
| 225 | |
| 226 | |
| 227 | /** |
| 228 | * Sets the response property. |
| 229 | * |
| 230 | * @param string $response New response property value. |
| 231 | */ |
| 232 | public function set_response( $response ) { |
| 233 | $this->response = $response; |
| 234 | return true; |
| 235 | } |
| 236 | |
| 237 | |
| 238 | /** |
| 239 | * Retrieves the contact form property. |
| 240 | * |
| 241 | * @return WPCF7_ContactForm A contact form object. |
| 242 | */ |
| 243 | public function get_contact_form() { |
| 244 | return $this->contact_form; |
| 245 | } |
| 246 | |
| 247 | |
| 248 | /** |
| 249 | * Search an invalid field by field name. |
| 250 | * |
| 251 | * @param string $name The field name. |
| 252 | * @return array|bool An associative array of validation error |
| 253 | * or false when no invalid field. |
| 254 | */ |
| 255 | public function get_invalid_field( $name ) { |
| 256 | if ( isset( $this->invalid_fields[$name] ) ) { |
| 257 | return $this->invalid_fields[$name]; |
| 258 | } else { |
| 259 | return false; |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | |
| 264 | /** |
| 265 | * Retrieves all invalid fields. |
| 266 | * |
| 267 | * @return array Invalid fields. |
| 268 | */ |
| 269 | public function get_invalid_fields() { |
| 270 | return $this->invalid_fields; |
| 271 | } |
| 272 | |
| 273 | |
| 274 | /** |
| 275 | * Retrieves meta information. |
| 276 | * |
| 277 | * @param string $name Name of the meta information. |
| 278 | * @return string|null The meta information of the given name if it exists, |
| 279 | * null otherwise. |
| 280 | */ |
| 281 | public function get_meta( $name ) { |
| 282 | if ( isset( $this->meta[$name] ) ) { |
| 283 | return $this->meta[$name]; |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | |
| 288 | /** |
| 289 | * Collects meta information about this submission. |
| 290 | */ |
| 291 | private function setup_meta_data() { |
| 292 | $timestamp = time(); |
| 293 | |
| 294 | $remote_ip = $this->get_remote_ip_addr(); |
| 295 | |
| 296 | $remote_port = isset( $_SERVER['REMOTE_PORT'] ) |
| 297 | ? (int) $_SERVER['REMOTE_PORT'] : ''; |
| 298 | |
| 299 | $user_agent = isset( $_SERVER['HTTP_USER_AGENT'] ) |
| 300 | ? substr( $_SERVER['HTTP_USER_AGENT'], 0, 254 ) : ''; |
| 301 | |
| 302 | $url = $this->get_request_url(); |
| 303 | |
| 304 | $unit_tag = isset( $_POST['_wpcf7_unit_tag'] ) |
| 305 | ? wpcf7_sanitize_unit_tag( $_POST['_wpcf7_unit_tag'] ) : ''; |
| 306 | |
| 307 | $container_post_id = isset( $_POST['_wpcf7_container_post'] ) |
| 308 | ? (int) $_POST['_wpcf7_container_post'] : 0; |
| 309 | |
| 310 | $current_user_id = get_current_user_id(); |
| 311 | |
| 312 | $do_not_store = $this->contact_form->is_true( 'do_not_store' ); |
| 313 | |
| 314 | $this->meta = array( |
| 315 | 'timestamp' => $timestamp, |
| 316 | 'remote_ip' => $remote_ip, |
| 317 | 'remote_port' => $remote_port, |
| 318 | 'user_agent' => $user_agent, |
| 319 | 'url' => $url, |
| 320 | 'unit_tag' => $unit_tag, |
| 321 | 'container_post_id' => $container_post_id, |
| 322 | 'current_user_id' => $current_user_id, |
| 323 | 'do_not_store' => $do_not_store, |
| 324 | ); |
| 325 | |
| 326 | return $this->meta; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | /** |
| 331 | * Retrieves user input data through this submission. |
| 332 | * |
| 333 | * @param string $name Optional field name. |
| 334 | * @return string|array|null The user input of the field, or array of all |
| 335 | * fields values if no field name specified. |
| 336 | */ |
| 337 | public function get_posted_data( $name = '' ) { |
| 338 | if ( ! empty( $name ) ) { |
| 339 | if ( isset( $this->posted_data[$name] ) ) { |
| 340 | return $this->posted_data[$name]; |
| 341 | } else { |
| 342 | return null; |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | return $this->posted_data; |
| 347 | } |
| 348 | |
| 349 | |
| 350 | /** |
| 351 | * Retrieves a user input string value through the specified field. |
| 352 | * |
| 353 | * @param string $name Field name. |
| 354 | * @return string The user input. If the input is an array, |
| 355 | * the first item in the array. |
| 356 | */ |
| 357 | public function get_posted_string( $name ) { |
| 358 | $data = $this->get_posted_data( $name ); |
| 359 | $data = wpcf7_array_flatten( $data ); |
| 360 | |
| 361 | if ( empty( $data ) ) { |
| 362 | return ''; |
| 363 | } |
| 364 | |
| 365 | // Returns the first array item. |
| 366 | return trim( reset( $data ) ); |
| 367 | } |
| 368 | |
| 369 | |
| 370 | /** |
| 371 | * Constructs posted data property based on user input values. |
| 372 | */ |
| 373 | private function setup_posted_data() { |
| 374 | $posted_data = array_filter( (array) $_POST, function( $key ) { |
| 375 | return '_' !== substr( $key, 0, 1 ); |
| 376 | }, ARRAY_FILTER_USE_KEY ); |
| 377 | |
| 378 | $posted_data = wp_unslash( $posted_data ); |
| 379 | $posted_data = $this->sanitize_posted_data( $posted_data ); |
| 380 | |
| 381 | $tags = $this->contact_form->scan_form_tags(); |
| 382 | |
| 383 | foreach ( (array) $tags as $tag ) { |
| 384 | if ( empty( $tag->name ) ) { |
| 385 | continue; |
| 386 | } |
| 387 | |
| 388 | $type = $tag->type; |
| 389 | $name = $tag->name; |
| 390 | $pipes = $tag->pipes; |
| 391 | |
| 392 | if ( wpcf7_form_tag_supports( $type, 'do-not-store' ) ) { |
| 393 | unset( $posted_data[$name] ); |
| 394 | continue; |
| 395 | } |
| 396 | |
| 397 | $value_orig = $value = ''; |
| 398 | |
| 399 | if ( isset( $posted_data[$name] ) ) { |
| 400 | $value_orig = $value = $posted_data[$name]; |
| 401 | } |
| 402 | |
| 403 | if ( WPCF7_USE_PIPE |
| 404 | and $pipes instanceof WPCF7_Pipes |
| 405 | and ! $pipes->zero() ) { |
| 406 | if ( is_array( $value_orig ) ) { |
| 407 | $value = array(); |
| 408 | |
| 409 | foreach ( $value_orig as $v ) { |
| 410 | $value[] = $pipes->do_pipe( $v ); |
| 411 | } |
| 412 | } else { |
| 413 | $value = $pipes->do_pipe( $value_orig ); |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | if ( wpcf7_form_tag_supports( $type, 'selectable-values' ) ) { |
| 418 | $value = (array) $value; |
| 419 | |
| 420 | if ( $tag->has_option( 'free_text' ) |
| 421 | and isset( $posted_data[$name . '_free_text'] ) ) { |
| 422 | $last_val = array_pop( $value ); |
| 423 | |
| 424 | list( $tied_item ) = array_slice( |
| 425 | WPCF7_USE_PIPE ? $tag->pipes->collect_afters() : $tag->values, |
| 426 | -1, 1 |
| 427 | ); |
| 428 | |
| 429 | list( $last_val, $tied_item ) = array_map( |
| 430 | function ( $item ) { |
| 431 | return wpcf7_canonicalize( $item, array( |
| 432 | 'strto' => 'as-is', |
| 433 | ) ); |
| 434 | }, |
| 435 | array( $last_val, $tied_item ) |
| 436 | ); |
| 437 | |
| 438 | if ( $last_val === $tied_item ) { |
| 439 | $value[] = sprintf( '%s %s', |
| 440 | $last_val, |
| 441 | $posted_data[$name . '_free_text'] |
| 442 | ); |
| 443 | } else { |
| 444 | $value[] = $last_val; |
| 445 | } |
| 446 | |
| 447 | unset( $posted_data[$name . '_free_text'] ); |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | $value = apply_filters( "wpcf7_posted_data_{$type}", $value, |
| 452 | $value_orig, $tag |
| 453 | ); |
| 454 | |
| 455 | $posted_data[$name] = $value; |
| 456 | |
| 457 | if ( $tag->has_option( 'consent_for:storage' ) |
| 458 | and empty( $posted_data[$name] ) ) { |
| 459 | $this->meta['do_not_store'] = true; |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | $this->posted_data = apply_filters( 'wpcf7_posted_data', $posted_data ); |
| 464 | |
| 465 | $this->posted_data_hash = $this->create_posted_data_hash(); |
| 466 | |
| 467 | return $this->posted_data; |
| 468 | } |
| 469 | |
| 470 | |
| 471 | /** |
| 472 | * Sanitizes user input data. |
| 473 | */ |
| 474 | private function sanitize_posted_data( $value ) { |
| 475 | if ( is_array( $value ) ) { |
| 476 | $value = array_map( array( $this, 'sanitize_posted_data' ), $value ); |
| 477 | } elseif ( is_string( $value ) ) { |
| 478 | $value = wp_check_invalid_utf8( $value ); |
| 479 | $value = wp_kses_no_null( $value ); |
| 480 | } |
| 481 | |
| 482 | return $value; |
| 483 | } |
| 484 | |
| 485 | |
| 486 | /** |
| 487 | * Returns the time-dependent variable for hash creation. |
| 488 | * |
| 489 | * @return float Float value rounded up to the next highest integer. |
| 490 | */ |
| 491 | private function posted_data_hash_tick() { |
| 492 | return ceil( time() / ( HOUR_IN_SECONDS / 2 ) ); |
| 493 | } |
| 494 | |
| 495 | |
| 496 | /** |
| 497 | * Creates a hash string based on posted data, the remote IP address, |
| 498 | * contact form location, and window of time. |
| 499 | * |
| 500 | * @param string $tick Optional. If not specified, result of |
| 501 | * posted_data_hash_tick() will be used. |
| 502 | * @return string The hash. |
| 503 | */ |
| 504 | private function create_posted_data_hash( $tick = '' ) { |
| 505 | if ( '' === $tick ) { |
| 506 | $tick = $this->posted_data_hash_tick(); |
| 507 | } |
| 508 | |
| 509 | $hash = wp_hash( |
| 510 | wpcf7_flat_join( array_merge( |
| 511 | array( |
| 512 | $tick, |
| 513 | $this->get_meta( 'remote_ip' ), |
| 514 | $this->get_meta( 'unit_tag' ), |
| 515 | ), |
| 516 | $this->posted_data |
| 517 | ) ), |
| 518 | 'wpcf7_submission' |
| 519 | ); |
| 520 | |
| 521 | return $hash; |
| 522 | } |
| 523 | |
| 524 | |
| 525 | /** |
| 526 | * Returns the hash string created for this submission. |
| 527 | * |
| 528 | * @return string The current hash for the submission. |
| 529 | */ |
| 530 | public function get_posted_data_hash() { |
| 531 | return $this->posted_data_hash; |
| 532 | } |
| 533 | |
| 534 | |
| 535 | /** |
| 536 | * Verifies that the given string is equivalent to the posted data hash. |
| 537 | * |
| 538 | * @param string $hash Optional. This value will be compared to the |
| 539 | * current posted data hash for the submission. If not |
| 540 | * specified, the value of $_POST['_wpcf7_posted_data_hash'] |
| 541 | * will be used. |
| 542 | * @return int|bool 1 if $hash is created 0-30 minutes ago, |
| 543 | * 2 if $hash is created 30-60 minutes ago, |
| 544 | * false if $hash is invalid. |
| 545 | */ |
| 546 | public function verify_posted_data_hash( $hash = '' ) { |
| 547 | if ( '' === $hash and ! empty( $_POST['_wpcf7_posted_data_hash'] ) ) { |
| 548 | $hash = trim( $_POST['_wpcf7_posted_data_hash'] ); |
| 549 | } |
| 550 | |
| 551 | if ( '' === $hash ) { |
| 552 | return false; |
| 553 | } |
| 554 | |
| 555 | $tick = $this->posted_data_hash_tick(); |
| 556 | |
| 557 | // Hash created 0-30 minutes ago. |
| 558 | $expected_1 = $this->create_posted_data_hash( $tick ); |
| 559 | |
| 560 | if ( hash_equals( $expected_1, $hash ) ) { |
| 561 | return 1; |
| 562 | } |
| 563 | |
| 564 | // Hash created 30-60 minutes ago. |
| 565 | $expected_2 = $this->create_posted_data_hash( $tick - 1 ); |
| 566 | |
| 567 | if ( hash_equals( $expected_2, $hash ) ) { |
| 568 | return 2; |
| 569 | } |
| 570 | |
| 571 | return false; |
| 572 | } |
| 573 | |
| 574 | |
| 575 | /** |
| 576 | * Retrieves the remote IP address of this submission. |
| 577 | */ |
| 578 | private function get_remote_ip_addr() { |
| 579 | $ip_addr = ''; |
| 580 | |
| 581 | if ( isset( $_SERVER['REMOTE_ADDR'] ) |
| 582 | and WP_Http::is_ip_address( $_SERVER['REMOTE_ADDR'] ) ) { |
| 583 | $ip_addr = $_SERVER['REMOTE_ADDR']; |
| 584 | } |
| 585 | |
| 586 | return apply_filters( 'wpcf7_remote_ip_addr', $ip_addr ); |
| 587 | } |
| 588 | |
| 589 | |
| 590 | /** |
| 591 | * Retrieves the request URL of this submission. |
| 592 | */ |
| 593 | private function get_request_url() { |
| 594 | $home_url = untrailingslashit( home_url() ); |
| 595 | |
| 596 | if ( self::is_restful() ) { |
| 597 | $referer = isset( $_SERVER['HTTP_REFERER'] ) |
| 598 | ? trim( $_SERVER['HTTP_REFERER'] ) : ''; |
| 599 | |
| 600 | if ( $referer |
| 601 | and 0 === strpos( $referer, $home_url ) ) { |
| 602 | return sanitize_url( $referer ); |
| 603 | } |
| 604 | } |
| 605 | |
| 606 | $url = preg_replace( '%(?<!:|/)/.*$%', '', $home_url ) |
| 607 | . wpcf7_get_request_uri(); |
| 608 | |
| 609 | return $url; |
| 610 | } |
| 611 | |
| 612 | |
| 613 | /** |
| 614 | * Runs user input validation. |
| 615 | * |
| 616 | * @return bool True if no invalid field is found. |
| 617 | */ |
| 618 | private function validate() { |
| 619 | if ( $this->invalid_fields ) { |
| 620 | return false; |
| 621 | } |
| 622 | |
| 623 | $result = new WPCF7_Validation(); |
| 624 | |
| 625 | $this->contact_form->validate_schema( |
| 626 | array( |
| 627 | 'text' => true, |
| 628 | 'file' => false, |
| 629 | 'field' => array(), |
| 630 | ), |
| 631 | $result |
| 632 | ); |
| 633 | |
| 634 | $tags = $this->contact_form->scan_form_tags( array( |
| 635 | 'feature' => '! file-uploading', |
| 636 | ) ); |
| 637 | |
| 638 | foreach ( $tags as $tag ) { |
| 639 | $type = $tag->type; |
| 640 | $result = apply_filters( "wpcf7_validate_{$type}", $result, $tag ); |
| 641 | } |
| 642 | |
| 643 | $result = apply_filters( 'wpcf7_validate', $result, $tags ); |
| 644 | |
| 645 | $this->invalid_fields = $result->get_invalid_fields(); |
| 646 | |
| 647 | return $result->is_valid(); |
| 648 | } |
| 649 | |
| 650 | |
| 651 | /** |
| 652 | * Returns true if user consent is obtained. |
| 653 | */ |
| 654 | private function accepted() { |
| 655 | return apply_filters( 'wpcf7_acceptance', true, $this ); |
| 656 | } |
| 657 | |
| 658 | |
| 659 | /** |
| 660 | * Adds user consent data to this submission. |
| 661 | * |
| 662 | * @param string $name Field name. |
| 663 | * @param string $conditions Conditions of consent. |
| 664 | */ |
| 665 | public function add_consent( $name, $conditions ) { |
| 666 | $this->consent[$name] = $conditions; |
| 667 | return true; |
| 668 | } |
| 669 | |
| 670 | |
| 671 | /** |
| 672 | * Collects user consent data. |
| 673 | * |
| 674 | * @return array User consent data. |
| 675 | */ |
| 676 | public function collect_consent() { |
| 677 | return (array) $this->consent; |
| 678 | } |
| 679 | |
| 680 | |
| 681 | /** |
| 682 | * Executes spam protections. |
| 683 | * |
| 684 | * @return bool True if spam captured. |
| 685 | */ |
| 686 | private function spam() { |
| 687 | $spam = false; |
| 688 | |
| 689 | $skip_spam_check = apply_filters( 'wpcf7_skip_spam_check', |
| 690 | $this->skip_spam_check, |
| 691 | $this |
| 692 | ); |
| 693 | |
| 694 | if ( $skip_spam_check ) { |
| 695 | return $spam; |
| 696 | } |
| 697 | |
| 698 | if ( $this->contact_form->is_true( 'subscribers_only' ) |
| 699 | and current_user_can( 'wpcf7_submit', $this->contact_form->id() ) ) { |
| 700 | return $spam; |
| 701 | } |
| 702 | |
| 703 | $user_agent = (string) $this->get_meta( 'user_agent' ); |
| 704 | |
| 705 | if ( strlen( $user_agent ) < 2 ) { |
| 706 | $spam = true; |
| 707 | |
| 708 | $this->add_spam_log( array( |
| 709 | 'agent' => 'wpcf7', |
| 710 | 'reason' => __( "User-Agent string is unnaturally short.", 'contact-form-7' ), |
| 711 | ) ); |
| 712 | } |
| 713 | |
| 714 | if ( ! $this->verify_nonce() ) { |
| 715 | $spam = true; |
| 716 | |
| 717 | $this->add_spam_log( array( |
| 718 | 'agent' => 'wpcf7', |
| 719 | 'reason' => __( "Submitted nonce is invalid.", 'contact-form-7' ), |
| 720 | ) ); |
| 721 | } |
| 722 | |
| 723 | return apply_filters( 'wpcf7_spam', $spam, $this ); |
| 724 | } |
| 725 | |
| 726 | |
| 727 | /** |
| 728 | * Adds a spam log. |
| 729 | * |
| 730 | * @link https://contactform7.com/2019/05/31/why-is-this-message-marked-spam/ |
| 731 | */ |
| 732 | public function add_spam_log( $args = '' ) { |
| 733 | $args = wp_parse_args( $args, array( |
| 734 | 'agent' => '', |
| 735 | 'reason' => '', |
| 736 | ) ); |
| 737 | |
| 738 | $this->spam_log[] = $args; |
| 739 | } |
| 740 | |
| 741 | |
| 742 | /** |
| 743 | * Retrieves the spam logging data. |
| 744 | * |
| 745 | * @return array Spam logging data. |
| 746 | */ |
| 747 | public function get_spam_log() { |
| 748 | return $this->spam_log; |
| 749 | } |
| 750 | |
| 751 | |
| 752 | /** |
| 753 | * Verifies that a correct security nonce was used. |
| 754 | */ |
| 755 | private function verify_nonce() { |
| 756 | if ( ! $this->contact_form->nonce_is_active() or ! is_user_logged_in() ) { |
| 757 | return true; |
| 758 | } |
| 759 | |
| 760 | $nonce = isset( $_POST['_wpnonce'] ) ? $_POST['_wpnonce'] : ''; |
| 761 | |
| 762 | return wpcf7_verify_nonce( $nonce ); |
| 763 | } |
| 764 | |
| 765 | |
| 766 | /** |
| 767 | * Function called just before sending email. |
| 768 | */ |
| 769 | private function before_send_mail() { |
| 770 | $abort = false; |
| 771 | |
| 772 | do_action_ref_array( 'wpcf7_before_send_mail', array( |
| 773 | $this->contact_form, |
| 774 | &$abort, |
| 775 | $this, |
| 776 | ) ); |
| 777 | |
| 778 | return ! $abort; |
| 779 | } |
| 780 | |
| 781 | |
| 782 | /** |
| 783 | * Sends emails based on user input values and contact form email templates. |
| 784 | */ |
| 785 | private function mail() { |
| 786 | $contact_form = $this->contact_form; |
| 787 | |
| 788 | $skip_mail = apply_filters( 'wpcf7_skip_mail', |
| 789 | $this->skip_mail, $contact_form |
| 790 | ); |
| 791 | |
| 792 | if ( $skip_mail ) { |
| 793 | return true; |
| 794 | } |
| 795 | |
| 796 | $result = WPCF7_Mail::send( $contact_form->prop( 'mail' ), 'mail' ); |
| 797 | |
| 798 | if ( $result ) { |
| 799 | $additional_mail = array(); |
| 800 | |
| 801 | if ( $mail_2 = $contact_form->prop( 'mail_2' ) |
| 802 | and $mail_2['active'] ) { |
| 803 | $additional_mail['mail_2'] = $mail_2; |
| 804 | } |
| 805 | |
| 806 | $additional_mail = apply_filters( 'wpcf7_additional_mail', |
| 807 | $additional_mail, $contact_form |
| 808 | ); |
| 809 | |
| 810 | foreach ( $additional_mail as $name => $template ) { |
| 811 | WPCF7_Mail::send( $template, $name ); |
| 812 | } |
| 813 | |
| 814 | return true; |
| 815 | } |
| 816 | |
| 817 | return false; |
| 818 | } |
| 819 | |
| 820 | |
| 821 | /** |
| 822 | * Retrieves files uploaded through this submission. |
| 823 | */ |
| 824 | public function uploaded_files() { |
| 825 | return $this->uploaded_files; |
| 826 | } |
| 827 | |
| 828 | |
| 829 | /** |
| 830 | * Adds a file to the uploaded files array. |
| 831 | * |
| 832 | * @param string $name Field name. |
| 833 | * @param string|array $file_path File path or array of file paths. |
| 834 | */ |
| 835 | private function add_uploaded_file( $name, $file_path ) { |
| 836 | if ( ! wpcf7_is_name( $name ) ) { |
| 837 | return false; |
| 838 | } |
| 839 | |
| 840 | $paths = (array) $file_path; |
| 841 | $uploaded_files = array(); |
| 842 | $hash_strings = array(); |
| 843 | |
| 844 | foreach ( $paths as $path ) { |
| 845 | if ( @is_file( $path ) and @is_readable( $path ) ) { |
| 846 | $uploaded_files[] = $path; |
| 847 | $hash_strings[] = md5_file( $path ); |
| 848 | } |
| 849 | } |
| 850 | |
| 851 | $this->uploaded_files[$name] = $uploaded_files; |
| 852 | |
| 853 | if ( empty( $this->posted_data[$name] ) ) { |
| 854 | $this->posted_data[$name] = implode( ' ', $hash_strings ); |
| 855 | } |
| 856 | } |
| 857 | |
| 858 | |
| 859 | /** |
| 860 | * Removes uploaded files. |
| 861 | */ |
| 862 | private function remove_uploaded_files() { |
| 863 | foreach ( (array) $this->uploaded_files as $file_path ) { |
| 864 | $paths = (array) $file_path; |
| 865 | |
| 866 | foreach ( $paths as $path ) { |
| 867 | wpcf7_rmdir_p( $path ); |
| 868 | |
| 869 | if ( $dir = dirname( $path ) |
| 870 | and false !== ( $files = scandir( $dir ) ) |
| 871 | and ! array_diff( $files, array( '.', '..' ) ) ) { |
| 872 | // remove parent dir if it's empty. |
| 873 | rmdir( $dir ); |
| 874 | } |
| 875 | } |
| 876 | } |
| 877 | } |
| 878 | |
| 879 | |
| 880 | /** |
| 881 | * Moves uploaded files to the tmp directory and validates them. |
| 882 | * |
| 883 | * @return bool True if no invalid file is found. |
| 884 | */ |
| 885 | private function unship_uploaded_files() { |
| 886 | $result = new WPCF7_Validation(); |
| 887 | |
| 888 | $tags = $this->contact_form->scan_form_tags( array( |
| 889 | 'feature' => 'file-uploading', |
| 890 | ) ); |
| 891 | |
| 892 | foreach ( $tags as $tag ) { |
| 893 | if ( empty( $_FILES[$tag->name] ) ) { |
| 894 | continue; |
| 895 | } |
| 896 | |
| 897 | $file = $_FILES[$tag->name]; |
| 898 | |
| 899 | $args = array( |
| 900 | 'tag' => $tag, |
| 901 | 'name' => $tag->name, |
| 902 | 'required' => $tag->is_required(), |
| 903 | 'filetypes' => $tag->get_option( 'filetypes' ), |
| 904 | 'limit' => $tag->get_limit_option(), |
| 905 | 'schema' => $this->contact_form->get_schema(), |
| 906 | ); |
| 907 | |
| 908 | $new_files = wpcf7_unship_uploaded_file( $file, $args ); |
| 909 | |
| 910 | if ( is_wp_error( $new_files ) ) { |
| 911 | $result->invalidate( $tag, $new_files ); |
| 912 | } else { |
| 913 | $this->add_uploaded_file( $tag->name, $new_files ); |
| 914 | } |
| 915 | |
| 916 | $result = apply_filters( |
| 917 | "wpcf7_validate_{$tag->type}", |
| 918 | $result, $tag, |
| 919 | array( |
| 920 | 'uploaded_files' => $new_files, |
| 921 | ) |
| 922 | ); |
| 923 | } |
| 924 | |
| 925 | $this->invalid_fields = $result->get_invalid_fields(); |
| 926 | |
| 927 | return $result->is_valid(); |
| 928 | } |
| 929 | |
| 930 | |
| 931 | /** |
| 932 | * Adds extra email attachment files that are independent from form fields. |
| 933 | * |
| 934 | * @param string|array $file_path A file path or an array of file paths. |
| 935 | * @param string $template Optional. The name of the template to which |
| 936 | * the files are attached. |
| 937 | * @return bool True if it succeeds to attach a file at least, |
| 938 | * or false otherwise. |
| 939 | */ |
| 940 | public function add_extra_attachments( $file_path, $template = 'mail' ) { |
| 941 | if ( ! did_action( 'wpcf7_before_send_mail' ) ) { |
| 942 | return false; |
| 943 | } |
| 944 | |
| 945 | $extra_attachments = array(); |
| 946 | |
| 947 | foreach ( (array) $file_path as $path ) { |
| 948 | $path = path_join( WP_CONTENT_DIR, $path ); |
| 949 | |
| 950 | if ( file_exists( $path ) ) { |
| 951 | $extra_attachments[] = $path; |
| 952 | } |
| 953 | } |
| 954 | |
| 955 | if ( empty( $extra_attachments ) ) { |
| 956 | return false; |
| 957 | } |
| 958 | |
| 959 | if ( ! isset( $this->extra_attachments[$template] ) ) { |
| 960 | $this->extra_attachments[$template] = array(); |
| 961 | } |
| 962 | |
| 963 | $this->extra_attachments[$template] = array_merge( |
| 964 | $this->extra_attachments[$template], |
| 965 | $extra_attachments |
| 966 | ); |
| 967 | |
| 968 | return true; |
| 969 | } |
| 970 | |
| 971 | |
| 972 | /** |
| 973 | * Returns extra email attachment files. |
| 974 | * |
| 975 | * @param string $template An email template name. |
| 976 | * @return array Array of file paths. |
| 977 | */ |
| 978 | public function extra_attachments( $template ) { |
| 979 | if ( isset( $this->extra_attachments[$template] ) ) { |
| 980 | return (array) $this->extra_attachments[$template]; |
| 981 | } |
| 982 | |
| 983 | return array(); |
| 984 | } |
| 985 | |
| 986 | } |
| 987 |