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<?php /** * Google Docs and Google Calendar Shortcode * * Presentation: * <iframe src="https://docs.google.com/present/embed?id=dhfhrphh_123drp8s65c&interval=15&autoStart=true&loop=true&size=l" frameborder="0" width="700" height="559"></iframe> * <iframe src="https://docs.google.com/presentation/embed?id=13ItX4jV0SOSdr-ZjHarcpTh9Lr4omfsHAp87jpxv8-0&start=false&loop=false&delayms=3000" frameborder="0" width="960" height="749" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe> * * Document: * <iframe src="https://docs.google.com/document/pub?id=1kDatklacdZ_tZUOpWtt_ONzY97Ldj2zFcuO9LBY2Ln4&embedded=true"></iframe> * <iframe src="https://docs.google.com/document/d/1kDatklacdZ_tZUOpWtt_ONzY97Ldj2zFcuO9LBY2Ln4/pub?embedded=true"></iframe> * <iframe src="https://docs.google.com/document/d/e/2PACX-1vRkpIdasKL-eKXDjJgpEONduUspZTz0YmKaajfie0eJYnzikuyusuG1_V8X8T9XflN9l8A1oCM2sgEA/pub?embedded=true"></iframe> * * External document: * <iframe width=100% height=560px frameborder=0 src=https://docs.google.com/a/pranab.in/viewer?a=v&pid=explorer&chrome=false&embedded=true&srcid=1VTMwdgGiDMt8MCr75-YkQP-4u9WmEp1Qvf6C26KYBgFilxU2qndpd-VHhBIn&hl=en></iframe> * * Spreadsheet Form: * <iframe src="https://spreadsheets.google.com/embeddedform?formkey=dEVOYnMzZG5jMUpGbjFMYjFYNVB3NkE6MQ" width="760" height="710" frameborder="0" marginheight="0" marginwidth="0">Loading...</iframe> * * Spreadsheet Widget: * <iframe width='500' height='300' frameborder='0' src='https://spreadsheets1.google.com/a/petedavies.com/pub?hl=en&hl=en&key=0AjSij7nlnXvKdHNsNjRSWG12YmVfOEFwdlMxQ3J1S1E&single=true&gid=0&output=html&widget=true'></iframe> * <iframe width='500' height='300' frameborder='0' src='https://spreadsheets.google.com/spreadsheet/pub?hl=en&hl=en&key=0AhInIwfvYrIUdGJiTXhtUEhBSFVPUzdRZU5OMDlqdnc&output=html&widget=true'></iframe> * * Calendar: * <iframe src="https://www.google.com/calendar/embed?src=serjant%40gmail.com&ctz=Europe/Sofia" style="border: 0" width="800" height="600" frameborder="0" scrolling="no"></iframe> * <iframe src="http://www.google.com/calendar/hosted/belcastro.com/embed?src=n8nr8sd6v9hnus3nmlk7ed1238%40group.calendar.google.com&ctz=Europe/Zurich" style="border: 0" width="800" height="600" frameborder="0" scrolling="no"></iframe> * * Customized calendar: * <iframe src="https://www.google.com/calendar/embed?title=asdf&showTitle=0&showNav=0&showDate=0&showPrint=0&showTabs=0&showCalendars=0& * showTz=0&mode=AGENDA&height=300&wkst=2&hl=fi&bgcolor=%23ffcccc&src=m52gdmbgelo3itf00u1v44g0ns%40group.calendar.google.com&color=%234E5D6C& * src=serjant%40gmail.com&color=%235229A3&ctz=Europe%2FRiga" style=" border:solid 1px #777 " width="500" height="300" frameborder="0" scrolling="no"></iframe> * * Generic * <iframe src="https://docs.google.com/file/d/0B0SIdZW7iu-zX1RWREJpMXVHZVU/preview" width="640" height="480"></iframe> * * @package automattic/jetpack */ add_filter( 'pre_kses', 'googleapps_embed_to_shortcode' ); add_shortcode( 'googleapps', 'googleapps_shortcode' ); /** * Reverse iframe embed to shortcode mapping HTML attributes to shortcode attributes. * * @since 4.5.0 * * @param string $content Post content. * * @return mixed */ function googleapps_embed_to_shortcode( $content ) { if ( ! is_string( $content ) || false === stripos( $content, '<iframe' ) && false === stripos( $content, '.google.com' ) ) { return $content; } $regexp = '#<iframe((?:\s+\w+="[^"]*")*?)\s*src="https?://(docs|drive|spreadsheets\d*|calendar|www)*\.google\.com/(?!maps)([-\w\./]+)(?:\?)?([^"]+)?"\s*((?:\s+\w+="[^"]*")*?)>.*?</iframe>#i'; $regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $regexp, ENT_NOQUOTES ) ); $regexp_squot = str_replace( '"', "'", $regexp ); $regexp_ent_squot = str_replace( '"', "'", $regexp_ent ); $regexp_noquot = '!<iframe(.*?)src=https://(docs|drive)\.google\.com/[-\.\w/]*?(viewer)\?(.*?)>(.*?)</iframe>!'; $regexp_ent_noquot = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $regexp_noquot, ENT_NOQUOTES ) ); foreach ( compact( 'regexp', 'regexp_ent', 'regexp_squot', 'regexp_ent_squot', 'regexp_noquot', 'regexp_ent_noquot' ) as $reg => $regexp ) { if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) { continue; } foreach ( $matches as $match ) { $params = $match[1] . $match[5]; if ( in_array( $reg, array( 'regexp_ent', 'regexp_ent_squot' ), true ) ) { $params = html_entity_decode( $params, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ); } $params = wp_kses_hair( $params, array( 'http' ) ); $width = 0; $height = 0; if ( isset( $params['width'] ) ) { $width = (int) $params['width']['value']; } if ( isset( $params['height'] ) ) { $height = (int) $params['height']['value']; } // allow the user to specify width greater than 200 inside text widgets. if ( $width > 400 // We don't need to check a nonce here. A nonce is already checked "further up" in most code paths. // In the case where no nonce is ever checked, setting this $_POST parameter doesn't do anything the submitter couldn't already do (set the width/height). && isset( $_POST['widget-text'] ) // phpcs:ignore WordPress.Security.NonceVerification.Missing ) { $width = 200; $height = 200; } $attributes = ''; if ( isset( $params['width'] ) && '100%' === $params['width']['value'] ) { $width = '100%'; } if ( $width ) { $attributes = ' width="' . $width . '"'; } if ( $height ) { $attributes .= ' height="' . $height . '"'; } $domain = 'spreadsheets'; if ( in_array( $match[2], array( 'docs', 'drive', 'www', 'calendar' ), true ) ) { $domain = $match[2]; } // Make sure this is actually something that the shortcode supports. If it's not, leave the HTML alone. if ( ! googleapps_validate_domain_and_dir( $domain, $match[3] ) ) { continue; } /** This action is documented in modules/widgets/social-media-icons.php */ do_action( 'jetpack_bump_stats_extras', 'html_to_shortcode', googleapps_service_name( $domain, $match[3] ) ); $content = str_replace( $match[0], '[googleapps domain="' . $domain . '" dir="' . $match[3] . '" query="' . esc_attr( $match[4] ) . '"' . $attributes . ' /]', $content ); } } return $content; } /** * Parse shortcode attributes and output a Google Docs embed. * * @since 4.5.0 * * @param array $atts Shortcode attributes. * * @return string */ function googleapps_shortcode( $atts ) { global $content_width; $attr = shortcode_atts( array( 'width' => '100%', 'height' => '560', 'domain' => 'docs', 'dir' => 'document', 'query' => '', 'src' => '', ), $atts ); if ( is_numeric( $content_width ) && $content_width > 0 && is_numeric( $attr['width'] ) && $attr['width'] > $content_width ) { $attr['width'] = $content_width; } if ( is_numeric( $content_width ) && $content_width > 0 && '560' === $attr['height'] ) { $attr['height'] = floor( $content_width * 3 / 4 ); } if ( isset( $atts[0] ) && $atts[0] ) { $attr['src'] = $atts[0]; } if ( $attr['src'] && preg_match( '!https?://(docs|drive|spreadsheets\d*|calendar|www)*\.google\.com/([-\w\./]+)\?([^"]+)!', $attr['src'], $matches ) ) { $attr['domain'] = $matches[1]; $attr['dir'] = $matches[2]; parse_str( htmlspecialchars_decode( $matches[3], ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ), $query_ar ); $query_ar['chrome'] = 'false'; $query_ar['embedded'] = 'true'; $attr['query'] = http_build_query( $query_ar ); } if ( ! googleapps_validate_domain_and_dir( $attr['domain'], $attr['dir'] ) ) { return '<!-- Unsupported URL -->'; } $attr['query'] = $attr['dir'] . '?' . $attr['query']; /** This action is documented in modules/widgets/social-media-icons.php */ do_action( 'jetpack_bump_stats_extras', 'embeds', googleapps_service_name( $attr['domain'], $attr['dir'] ) ); return sprintf( '<iframe src="%s" frameborder="0" width="%s" height="%s" marginheight="0" marginwidth="0" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe>', esc_url( 'https://' . $attr['domain'] . '.google.com/' . $attr['query'] ), esc_attr( $attr['width'] ), esc_attr( $attr['height'] ) ); } /** * Check that the domain blogs to a Google Apps domain. * * @since 4.5.0 * * @param string $domain Google subdomain. * @param string $dir Subdirectory of the shared URL. * * @return bool */ function googleapps_validate_domain_and_dir( $domain, $dir ) { if ( ! in_array( $domain, array( 'docs', 'drive', 'www', 'spreadsheets', 'calendar' ), true ) ) { return false; } // Calendars. if ( ( 'www' === $domain || 'calendar' === $domain ) && ! str_starts_with( $dir, 'calendar/' ) ) { return false; } // Docs. if ( in_array( $domain, array( 'docs', 'drive' ), true ) && ! preg_match( '![-\.\w/]*(presentation/embed|presentation/d/(.*)|present/embed|document/pub|spreadsheets/d/(.*)|document/d/(e/)?[\w-]+/pub|file/d/[\w-]+/preview|viewer|forms/d/(.*)/viewform|spreadsheet/\w+)$!', $dir ) ) { return false; } // Spreadsheets. if ( 'spreadsheets' === $domain && ! preg_match( '!^([-\.\w/]+/pub|[-\.\w/]*embeddedform)$!', $dir ) ) { return false; } return true; } /** * Get the name of the service we'll be embedding. * * @since 4.5.0 * * @param string $domain Google subdomain. * @param string $dir Subdirectory of the shared URL. * * @return string */ function googleapps_service_name( $domain, $dir ) { switch ( $domain ) { case 'drive': case 'docs': $service_name = ( 'present/embed' === $dir ) ? 'googledocs_presentation' : 'googledocs_document'; break; case 'spreadsheets': $service_name = ( 'embeddedform' === $dir ) ? 'googledocs_form' : 'googledocs_spreadsheet'; break; case 'calendar': default: $service_name = 'google_calendar'; } return $service_name; }