382 lines
10 KiB
PHP
382 lines
10 KiB
PHP
<?php
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function wpcf7_autop( $pee, $br = 1 ) {
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if ( trim( $pee ) === '' ) {
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return '';
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}
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$pee = $pee . "\n"; // just to make things a little easier, pad the end
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$pee = preg_replace( '|<br />\s*<br />|', "\n\n", $pee );
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// Space things out a little
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/* wpcf7: remove select and input */
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$allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|form|map|area|blockquote|address|math|style|p|h[1-6]|hr|fieldset|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)';
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$pee = preg_replace( '!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee );
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$pee = preg_replace( '!(</' . $allblocks . '>)!', "$1\n\n", $pee );
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/* wpcf7: take care of [response], [recaptcha], and [hidden] tags */
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$form_tags_manager = WPCF7_FormTagsManager::get_instance();
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$block_hidden_form_tags = $form_tags_manager->collect_tag_types(
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array( 'display-block', 'display-hidden' ) );
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$block_hidden_form_tags = sprintf( '(?:%s)',
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implode( '|', $block_hidden_form_tags ) );
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$pee = preg_replace( '!(\[' . $block_hidden_form_tags . '[^]]*\])!',
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"\n$1\n\n", $pee );
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$pee = str_replace( array( "\r\n", "\r" ), "\n", $pee ); // cross-platform newlines
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if ( strpos( $pee, '<object' ) !== false ) {
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$pee = preg_replace( '|\s*<param([^>]*)>\s*|', "<param$1>", $pee ); // no pee inside object/embed
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$pee = preg_replace( '|\s*</embed>\s*|', '</embed>', $pee );
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}
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$pee = preg_replace( "/\n\n+/", "\n\n", $pee ); // take care of duplicates
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// make paragraphs, including one at the end
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$pees = preg_split( '/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY );
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$pee = '';
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foreach ( $pees as $tinkle ) {
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$pee .= '<p>' . trim( $tinkle, "\n" ) . "</p>\n";
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}
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$pee = preg_replace( '|<p>\s*</p>|', '', $pee ); // under certain strange conditions it could create a P of entirely whitespace
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$pee = preg_replace( '!<p>([^<]+)</(div|address|form|fieldset)>!', "<p>$1</p></$2>", $pee );
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$pee = preg_replace( '!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee ); // don't pee all over a tag
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$pee = preg_replace( "|<p>(<li.+?)</p>|", "$1", $pee ); // problem with nested lists
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$pee = preg_replace( '|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee );
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$pee = str_replace( '</blockquote></p>', '</p></blockquote>', $pee );
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$pee = preg_replace( '!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee );
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$pee = preg_replace( '!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee );
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/* wpcf7: take care of [response], [recaptcha], and [hidden] tag */
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$pee = preg_replace( '!<p>\s*(\[' . $block_hidden_form_tags . '[^]]*\])!',
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"$1", $pee );
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$pee = preg_replace( '!(\[' . $block_hidden_form_tags . '[^]]*\])\s*</p>!',
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"$1", $pee );
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if ( $br ) {
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/* wpcf7: add textarea */
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$pee = preg_replace_callback(
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'/<(script|style|textarea).*?<\/\\1>/s',
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'wpcf7_autop_preserve_newline_callback', $pee );
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$pee = preg_replace( '|(?<!<br />)\s*\n|', "<br />\n", $pee ); // optionally make line breaks
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$pee = str_replace( '<WPPreserveNewline />', "\n", $pee );
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/* wpcf7: remove extra <br /> just added before [response], [recaptcha], and [hidden] tags */
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$pee = preg_replace( '!<br />\n(\[' . $block_hidden_form_tags . '[^]]*\])!',
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"\n$1", $pee );
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}
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$pee = preg_replace( '!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee );
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$pee = preg_replace( '!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee );
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if ( strpos( $pee, '<pre' ) !== false ) {
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$pee = preg_replace_callback( '!(<pre[^>]*>)(.*?)</pre>!is',
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'clean_pre', $pee );
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}
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$pee = preg_replace( "|\n</p>$|", '</p>', $pee );
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return $pee;
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}
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function wpcf7_autop_preserve_newline_callback( $matches ) {
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return str_replace( "\n", '<WPPreserveNewline />', $matches[0] );
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}
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function wpcf7_sanitize_query_var( $text ) {
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$text = wp_unslash( $text );
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$text = wp_check_invalid_utf8( $text );
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if ( false !== strpos( $text, '<' ) ) {
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$text = wp_pre_kses_less_than( $text );
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$text = wp_strip_all_tags( $text );
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}
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$text = preg_replace( '/%[a-f0-9]{2}/i', '', $text );
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$text = preg_replace( '/ +/', ' ', $text );
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$text = trim( $text, ' ' );
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return $text;
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}
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function wpcf7_strip_quote( $text ) {
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$text = trim( $text );
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if ( preg_match( '/^"(.*)"$/s', $text, $matches ) ) {
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$text = $matches[1];
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} elseif ( preg_match( "/^'(.*)'$/s", $text, $matches ) ) {
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$text = $matches[1];
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}
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return $text;
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}
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function wpcf7_strip_quote_deep( $arr ) {
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if ( is_string( $arr ) ) {
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return wpcf7_strip_quote( $arr );
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}
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if ( is_array( $arr ) ) {
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$result = array();
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foreach ( $arr as $key => $text ) {
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$result[$key] = wpcf7_strip_quote_deep( $text );
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}
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return $result;
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}
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}
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function wpcf7_normalize_newline( $text, $to = "\n" ) {
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if ( ! is_string( $text ) ) {
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return $text;
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}
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$nls = array( "\r\n", "\r", "\n" );
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if ( ! in_array( $to, $nls ) ) {
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return $text;
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}
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return str_replace( $nls, $to, $text );
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}
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function wpcf7_normalize_newline_deep( $arr, $to = "\n" ) {
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if ( is_array( $arr ) ) {
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$result = array();
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foreach ( $arr as $key => $text ) {
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$result[$key] = wpcf7_normalize_newline_deep( $text, $to );
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}
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return $result;
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}
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return wpcf7_normalize_newline( $arr, $to );
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}
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function wpcf7_strip_newline( $str ) {
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$str = (string) $str;
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$str = str_replace( array( "\r", "\n" ), '', $str );
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return trim( $str );
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}
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function wpcf7_canonicalize( $text, $strto = 'lower' ) {
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if ( function_exists( 'mb_convert_kana' )
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and 'UTF-8' == get_option( 'blog_charset' ) ) {
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$text = mb_convert_kana( $text, 'asKV', 'UTF-8' );
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}
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if ( 'lower' == $strto ) {
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$text = strtolower( $text );
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} elseif ( 'upper' == $strto ) {
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$text = strtoupper( $text );
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}
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$text = trim( $text );
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return $text;
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}
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/**
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* Check whether a string is a valid NAME token.
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*
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* ID and NAME tokens must begin with a letter ([A-Za-z])
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* and may be followed by any number of letters, digits ([0-9]),
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* hyphens ("-"), underscores ("_"), colons (":"), and periods (".").
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*
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* @see http://www.w3.org/TR/html401/types.html#h-6.2
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*
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* @return bool True if it is a valid name, false if not.
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*/
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function wpcf7_is_name( $string ) {
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return preg_match( '/^[A-Za-z][-A-Za-z0-9_:.]*$/', $string );
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}
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function wpcf7_sanitize_unit_tag( $tag ) {
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$tag = preg_replace( '/[^A-Za-z0-9_-]/', '', $tag );
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return $tag;
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}
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function wpcf7_is_email( $email ) {
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$result = is_email( $email );
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return apply_filters( 'wpcf7_is_email', $result, $email );
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}
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function wpcf7_is_url( $url ) {
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$result = ( false !== filter_var( $url, FILTER_VALIDATE_URL ) );
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return apply_filters( 'wpcf7_is_url', $result, $url );
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}
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function wpcf7_is_tel( $tel ) {
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$result = preg_match( '%^[+]?[0-9()/ -]*$%', $tel );
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return apply_filters( 'wpcf7_is_tel', $result, $tel );
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}
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function wpcf7_is_number( $number ) {
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$result = is_numeric( $number );
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return apply_filters( 'wpcf7_is_number', $result, $number );
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}
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function wpcf7_is_date( $date ) {
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$result = preg_match( '/^([0-9]{4,})-([0-9]{2})-([0-9]{2})$/', $date, $matches );
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if ( $result ) {
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$result = checkdate( $matches[2], $matches[3], $matches[1] );
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}
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return apply_filters( 'wpcf7_is_date', $result, $date );
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}
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function wpcf7_is_mailbox_list( $mailbox_list ) {
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if ( ! is_array( $mailbox_list ) ) {
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$mailbox_text = (string) $mailbox_list;
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$mailbox_text = wp_unslash( $mailbox_text );
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$mailbox_text = preg_replace( '/\\\\(?:\"|\')/', 'esc-quote',
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$mailbox_text );
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$mailbox_text = preg_replace( '/(?:\".*?\"|\'.*?\')/', 'quoted-string',
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$mailbox_text );
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$mailbox_list = explode( ',', $mailbox_text );
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}
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$addresses = array();
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foreach ( $mailbox_list as $mailbox ) {
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if ( ! is_string( $mailbox ) ) {
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return false;
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}
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$mailbox = trim( $mailbox );
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if ( preg_match( '/<(.+)>$/', $mailbox, $matches ) ) {
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$addr_spec = $matches[1];
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} else {
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$addr_spec = $mailbox;
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}
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if ( ! wpcf7_is_email( $addr_spec ) ) {
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return false;
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}
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$addresses[] = $addr_spec;
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}
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return $addresses;
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}
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function wpcf7_is_email_in_domain( $email, $domain ) {
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$email_list = wpcf7_is_mailbox_list( $email );
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$domain = strtolower( $domain );
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foreach ( $email_list as $email ) {
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$email_domain = substr( $email, strrpos( $email, '@' ) + 1 );
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$email_domain = strtolower( $email_domain );
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$domain_parts = explode( '.', $domain );
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do {
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$site_domain = implode( '.', $domain_parts );
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if ( $site_domain == $email_domain ) {
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continue 2;
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}
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array_shift( $domain_parts );
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} while ( $domain_parts );
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return false;
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}
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return true;
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}
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function wpcf7_is_email_in_site_domain( $email ) {
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if ( wpcf7_is_localhost() ) {
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return true;
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}
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$site_domain = strtolower( $_SERVER['SERVER_NAME'] );
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if ( preg_match( '/^[0-9.]+$/', $site_domain ) ) { // 123.456.789.012
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return true;
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}
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if ( wpcf7_is_email_in_domain( $email, $site_domain ) ) {
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return true;
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}
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$home_url = home_url();
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// for interoperability with WordPress MU Domain Mapping plugin
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if ( is_multisite()
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and function_exists( 'domain_mapping_siteurl' ) ) {
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$domain_mapping_siteurl = domain_mapping_siteurl( false );
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if ( $domain_mapping_siteurl ) {
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$home_url = $domain_mapping_siteurl;
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}
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}
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if ( preg_match( '%^https?://([^/]+)%', $home_url, $matches ) ) {
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$site_domain = strtolower( $matches[1] );
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if ( $site_domain != strtolower( $_SERVER['SERVER_NAME'] )
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and wpcf7_is_email_in_domain( $email, $site_domain ) ) {
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return true;
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}
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}
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return false;
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}
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function wpcf7_antiscript_file_name( $filename ) {
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$filename = basename( $filename );
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$parts = explode( '.', $filename );
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if ( count( $parts ) < 2 ) {
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return $filename;
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}
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$script_pattern = '/^(php|phtml|pl|py|rb|cgi|asp|aspx)\d?$/i';
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$filename = array_shift( $parts );
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$extension = array_pop( $parts );
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foreach ( (array) $parts as $part ) {
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if ( preg_match( $script_pattern, $part ) ) {
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$filename .= '.' . $part . '_';
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} else {
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$filename .= '.' . $part;
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}
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}
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if ( preg_match( $script_pattern, $extension ) ) {
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$filename .= '.' . $extension . '_.txt';
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} else {
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$filename .= '.' . $extension;
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}
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return $filename;
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}
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function wpcf7_mask_password( $text, $length_unmasked = 0 ) {
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$length = strlen( $text );
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$length_unmasked = absint( $length_unmasked );
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if ( 0 == $length_unmasked ) {
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if ( 9 < $length ) {
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$length_unmasked = 4;
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} elseif ( 3 < $length ) {
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$length_unmasked = 2;
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} else {
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$length_unmasked = $length;
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}
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}
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$text = substr( $text, 0 - $length_unmasked );
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$text = str_pad( $text, $length, '*', STR_PAD_LEFT );
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return $text;
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}
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