block-editor
1 year ago
config-validator
11 months ago
css
11 months ago
js
1 year ago
swv
11 months ago
capabilities.php
7 years ago
contact-form-functions.php
11 months ago
contact-form-template.php
11 months ago
contact-form.php
11 months ago
controller.php
11 months ago
file.php
11 months ago
filesystem.php
11 months ago
form-tag.php
11 months ago
form-tags-manager.php
11 months ago
formatting.php
11 months ago
functions.php
11 months ago
html-formatter.php
11 months ago
integration.php
11 months ago
l10n.php
11 months ago
mail-tag.php
11 months ago
mail.php
11 months ago
pipe.php
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pocket-holder.php
3 years ago
rest-api.php
11 months ago
shortcodes.php
11 months ago
special-mail-tags.php
1 year ago
submission.php
11 months ago
upgrade.php
11 months ago
validation-functions.php
11 months ago
validation.php
11 months ago
validation-functions.php
323 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Checks whether a string is a valid NAME token. |
| 5 | * |
| 6 | * ID and NAME tokens must begin with a letter ([A-Za-z]) |
| 7 | * and may be followed by any number of letters, digits ([0-9]), |
| 8 | * hyphens ("-"), underscores ("_"), colons (":"), and periods ("."). |
| 9 | * |
| 10 | * @link http://www.w3.org/TR/html401/types.html#h-6.2 |
| 11 | * |
| 12 | * @return bool True if it is a valid name, false if not. |
| 13 | */ |
| 14 | function wpcf7_is_name( $text ) { |
| 15 | return preg_match( '/^[A-Za-z][-A-Za-z0-9_:.]*$/', $text ); |
| 16 | } |
| 17 | |
| 18 | |
| 19 | /** |
| 20 | * Checks whether the given text is a well-formed email address. |
| 21 | */ |
| 22 | function wpcf7_is_email( $text ) { |
| 23 | $result = is_email( $text ); |
| 24 | return apply_filters( 'wpcf7_is_email', $result, $text ); |
| 25 | } |
| 26 | |
| 27 | |
| 28 | /** |
| 29 | * Checks whether the given text is a well-formed URL. |
| 30 | */ |
| 31 | function wpcf7_is_url( $text ) { |
| 32 | $scheme = wp_parse_url( $text, PHP_URL_SCHEME ); |
| 33 | $result = $scheme && in_array( $scheme, wp_allowed_protocols(), true ); |
| 34 | return apply_filters( 'wpcf7_is_url', $result, $text ); |
| 35 | } |
| 36 | |
| 37 | |
| 38 | /** |
| 39 | * Checks whether the given text is a well-formed telephone number. |
| 40 | */ |
| 41 | function wpcf7_is_tel( $text ) { |
| 42 | $text = preg_replace( '/[#*].*$/', '', $text ); // Remove extension |
| 43 | $text = preg_replace( '%[()/.*#\s-]+%', '', $text ); |
| 44 | |
| 45 | $is_international = ( |
| 46 | str_starts_with( $text, '+' ) || |
| 47 | str_starts_with( $text, '00' ) |
| 48 | ); |
| 49 | |
| 50 | if ( $is_international ) { |
| 51 | $text = '+' . preg_replace( '/^[+0]+/', '', $text ); |
| 52 | } |
| 53 | |
| 54 | $result = true; |
| 55 | |
| 56 | if ( ! preg_match( '/^[+]?[0-9]+$/', $text ) ) { |
| 57 | $result = false; |
| 58 | } |
| 59 | |
| 60 | if ( ! ( 5 < strlen( $text ) and strlen( $text ) < 16 ) ) { |
| 61 | $result = false; |
| 62 | } |
| 63 | |
| 64 | return apply_filters( 'wpcf7_is_tel', $result, $text ); |
| 65 | } |
| 66 | |
| 67 | |
| 68 | /** |
| 69 | * Checks whether the given text is a well-formed number. |
| 70 | * |
| 71 | * @link https://html.spec.whatwg.org/multipage/input.html#number-state-(type=number) |
| 72 | */ |
| 73 | function wpcf7_is_number( $text ) { |
| 74 | $result = false; |
| 75 | |
| 76 | $patterns = array( |
| 77 | '/^[-]?[0-9]+(?:[eE][+-]?[0-9]+)?$/', |
| 78 | '/^[-]?(?:[0-9]+)?[.][0-9]+(?:[eE][+-]?[0-9]+)?$/', |
| 79 | ); |
| 80 | |
| 81 | foreach ( $patterns as $pattern ) { |
| 82 | if ( preg_match( $pattern, $text ) ) { |
| 83 | $result = true; |
| 84 | break; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | return apply_filters( 'wpcf7_is_number', $result, $text ); |
| 89 | } |
| 90 | |
| 91 | |
| 92 | /** |
| 93 | * Checks whether the given text is a valid date. |
| 94 | * |
| 95 | * @link https://html.spec.whatwg.org/multipage/input.html#date-state-(type=date) |
| 96 | */ |
| 97 | function wpcf7_is_date( $text ) { |
| 98 | $result = preg_match( |
| 99 | '/^([0-9]{4,})-([0-9]{2})-([0-9]{2})$/', |
| 100 | $text, |
| 101 | $matches |
| 102 | ); |
| 103 | |
| 104 | if ( $result ) { |
| 105 | $result = checkdate( $matches[2], $matches[3], $matches[1] ); |
| 106 | } |
| 107 | |
| 108 | return apply_filters( 'wpcf7_is_date', $result, $text ); |
| 109 | } |
| 110 | |
| 111 | |
| 112 | /** |
| 113 | * Checks whether the given text is a valid time. |
| 114 | * |
| 115 | * @link https://html.spec.whatwg.org/multipage/input.html#time-state-(type=time) |
| 116 | */ |
| 117 | function wpcf7_is_time( $text ) { |
| 118 | $result = preg_match( |
| 119 | '/^([0-9]{2})\:([0-9]{2})(?:\:([0-9]{2}))?$/', |
| 120 | $text, |
| 121 | $matches |
| 122 | ); |
| 123 | |
| 124 | if ( $result ) { |
| 125 | $hour = (int) $matches[1]; |
| 126 | $minute = (int) $matches[2]; |
| 127 | $second = empty( $matches[3] ) ? 0 : (int) $matches[3]; |
| 128 | |
| 129 | $result = ( |
| 130 | 0 <= $hour && $hour <= 23 && |
| 131 | 0 <= $minute && $minute <= 59 && |
| 132 | 0 <= $second && $second <= 59 |
| 133 | ); |
| 134 | } |
| 135 | |
| 136 | return apply_filters( 'wpcf7_is_time', $result, $text ); |
| 137 | } |
| 138 | |
| 139 | |
| 140 | /** |
| 141 | * Checks whether the given text is a well-formed mailbox list. |
| 142 | * |
| 143 | * @param string|array $mailbox_list The subject to be checked. |
| 144 | * Comma-separated string or an array of mailboxes. |
| 145 | * @return array|bool Array of email addresses if all items are well-formed |
| 146 | * mailbox, false if not. |
| 147 | */ |
| 148 | function wpcf7_is_mailbox_list( $mailbox_list ) { |
| 149 | if ( ! is_array( $mailbox_list ) ) { |
| 150 | $mailbox_text = (string) $mailbox_list; |
| 151 | |
| 152 | $mailbox_text = preg_replace( |
| 153 | '/\\\\(?:\"|\')/', |
| 154 | 'esc-quote', |
| 155 | $mailbox_text |
| 156 | ); |
| 157 | |
| 158 | $mailbox_text = preg_replace( |
| 159 | '/(?:\".*?\"|\'.*?\')/', |
| 160 | 'quoted-string', |
| 161 | $mailbox_text |
| 162 | ); |
| 163 | |
| 164 | $mailbox_list = explode( ',', $mailbox_text ); |
| 165 | } |
| 166 | |
| 167 | $addresses = array(); |
| 168 | |
| 169 | foreach ( $mailbox_list as $mailbox ) { |
| 170 | if ( ! is_string( $mailbox ) ) { |
| 171 | return false; |
| 172 | } |
| 173 | |
| 174 | $mailbox = trim( $mailbox ); |
| 175 | |
| 176 | if ( '' === $mailbox ) { |
| 177 | continue; |
| 178 | } |
| 179 | |
| 180 | if ( preg_match( '/<(.+)>$/', $mailbox, $matches ) ) { |
| 181 | $addr_spec = $matches[1]; |
| 182 | } else { |
| 183 | $addr_spec = $mailbox; |
| 184 | } |
| 185 | |
| 186 | if ( ! wpcf7_is_email( $addr_spec ) ) { |
| 187 | return false; |
| 188 | } |
| 189 | |
| 190 | $addresses[] = $addr_spec; |
| 191 | } |
| 192 | |
| 193 | return $addresses; |
| 194 | } |
| 195 | |
| 196 | |
| 197 | /** |
| 198 | * Checks whether an email address belongs to a domain. |
| 199 | * |
| 200 | * @param string $email A mailbox or a comma-separated list of mailboxes. |
| 201 | * @param string $domain Internet domain name. |
| 202 | * @return bool True if all of the email addresses belong to the domain, |
| 203 | * false if not. |
| 204 | */ |
| 205 | function wpcf7_is_email_in_domain( $email, $domain ) { |
| 206 | $email_list = wpcf7_is_mailbox_list( $email ); |
| 207 | |
| 208 | if ( false === $email_list ) { |
| 209 | return false; |
| 210 | } |
| 211 | |
| 212 | $domain = strtolower( $domain ); |
| 213 | |
| 214 | foreach ( $email_list as $email ) { |
| 215 | $email_domain = substr( $email, strrpos( $email, '@' ) + 1 ); |
| 216 | $email_domain = strtolower( $email_domain ); |
| 217 | $domain_parts = explode( '.', $domain ); |
| 218 | |
| 219 | do { |
| 220 | $site_domain = implode( '.', $domain_parts ); |
| 221 | |
| 222 | if ( $site_domain === $email_domain ) { |
| 223 | continue 2; |
| 224 | } |
| 225 | |
| 226 | array_shift( $domain_parts ); |
| 227 | } while ( $domain_parts ); |
| 228 | |
| 229 | return false; |
| 230 | } |
| 231 | |
| 232 | return true; |
| 233 | } |
| 234 | |
| 235 | |
| 236 | /** |
| 237 | * Checks whether an email address belongs to the site domain. |
| 238 | */ |
| 239 | function wpcf7_is_email_in_site_domain( $email ) { |
| 240 | if ( wpcf7_is_localhost() ) { |
| 241 | return true; |
| 242 | } |
| 243 | |
| 244 | $homes = array( |
| 245 | home_url(), |
| 246 | network_home_url(), |
| 247 | ); |
| 248 | |
| 249 | $homes = array_unique( $homes ); |
| 250 | |
| 251 | foreach ( $homes as $home ) { |
| 252 | $sitename = wp_parse_url( $home, PHP_URL_HOST ); |
| 253 | |
| 254 | if ( WP_Http::is_ip_address( $sitename ) ) { |
| 255 | return true; |
| 256 | } |
| 257 | |
| 258 | if ( wpcf7_is_email_in_domain( $email, $sitename ) ) { |
| 259 | return true; |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | return false; |
| 264 | } |
| 265 | |
| 266 | |
| 267 | /** |
| 268 | * Verifies that a given file path is under the directories that WordPress |
| 269 | * manages for user contents. |
| 270 | * |
| 271 | * Returns false if the file at the given path does not exist yet. |
| 272 | * |
| 273 | * @param string $path A file path. |
| 274 | * @return bool True if the path is under the content directories, |
| 275 | * false otherwise. |
| 276 | */ |
| 277 | function wpcf7_is_file_path_in_content_dir( $path ) { |
| 278 | if ( ! is_string( $path ) or '' === $path ) { |
| 279 | return false; |
| 280 | } |
| 281 | |
| 282 | $callback = static function ( $path, $dir ) { |
| 283 | if ( $real_path = realpath( $path ) ) { |
| 284 | $path = $real_path; |
| 285 | } else { |
| 286 | return false; |
| 287 | } |
| 288 | |
| 289 | if ( $real_dir = realpath( $dir ) ) { |
| 290 | $dir = trailingslashit( $real_dir ); |
| 291 | } else { |
| 292 | return false; |
| 293 | } |
| 294 | |
| 295 | return str_starts_with( |
| 296 | wp_normalize_path( $path ), |
| 297 | wp_normalize_path( $dir ) |
| 298 | ); |
| 299 | }; |
| 300 | |
| 301 | if ( |
| 302 | call_user_func( $callback, $path, WP_CONTENT_DIR ) |
| 303 | ) { |
| 304 | return true; |
| 305 | } |
| 306 | |
| 307 | if ( |
| 308 | defined( 'UPLOADS' ) and |
| 309 | call_user_func( $callback, $path, ABSPATH . UPLOADS ) |
| 310 | ) { |
| 311 | return true; |
| 312 | } |
| 313 | |
| 314 | if ( |
| 315 | defined( 'WP_TEMP_DIR' ) and |
| 316 | call_user_func( $callback, $path, WP_TEMP_DIR ) |
| 317 | ) { |
| 318 | return true; |
| 319 | } |
| 320 | |
| 321 | return false; |
| 322 | } |
| 323 |