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Diffstat (limited to 'plugins/jetpack/modules/shortcodes/googleapps.php')
| -rw-r--r-- | plugins/jetpack/modules/shortcodes/googleapps.php | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/shortcodes/googleapps.php b/plugins/jetpack/modules/shortcodes/googleapps.php new file mode 100644 index 00000000..55c4580e --- /dev/null +++ b/plugins/jetpack/modules/shortcodes/googleapps.php @@ -0,0 +1,255 @@ +<?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 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 ); + } + + $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 ( isset( $content_width ) && is_numeric( $attr['width'] ) && $attr['width'] > $content_width ) { + $attr['width'] = $content_width; + } + + if ( isset( $content_width ) && '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] ), $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 ) && 'calendar/' !== substr( $dir, 0, 9 ) ) { + 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; +} |