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/** |
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* Shows what the current settings actually produce. |
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* |
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* The markup is rendered on the server through the same three filters the |
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* front end uses, so this is the real result rather than a reconstruction. |
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* Both halves matter: what a visitor sees, and what is left in the source for |
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* a spam bot to find. The second half is the whole point of the plugin and was |
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* previously invisible. |
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*/ |
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|
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import { useEffect, useRef, useState } from '@wordpress/element'; |
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import apiFetch from '@wordpress/api-fetch'; |
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import { __ } from '@wordpress/i18n'; |
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import { Card, CardBody, CardHeader, Spinner } from '@wordpress/components'; |
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|
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/** |
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* Waits until the user stops changing things before asking the server. |
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*/ |
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const DEBOUNCE_MS = 400; |
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|
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/** |
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* What the server found in the markup, and how worried to be about it. |
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* |
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* The middle case is the one worth having: an address written as HTML entities |
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* is invisible to a search of the raw source and perfectly visible to anything |
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* that decodes entities first. Reporting that as "protected" would be a |
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* comforting lie, and this box exists to prevent exactly that. |
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*/ |
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const VERDICTS = { |
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none: { |
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tone: 'good', |
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text: () => |
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__( 'No readable address is left in the source.', 'cryptx' ), |
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}, |
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encoded: { |
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tone: 'warning', |
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text: () => |
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__( |
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'The address is in the source as HTML entities. That defeats a simple scanner, but any spam bot that decodes entities will read it.', |
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'cryptx' |
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), |
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}, |
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plain: { |
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tone: 'bad', |
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text: () => |
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__( |
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'An address is still plainly readable in the source with these settings.', |
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'cryptx' |
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), |
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}, |
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}; |
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|
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export default function Preview( { values } ) { |
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const [ preview, setPreview ] = useState( null ); |
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const [ isLoading, setLoading ] = useState( false ); |
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const [ error, setError ] = useState( null ); |
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const requestId = useRef( 0 ); |
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|
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useEffect( () => { |
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const handle = setTimeout( () => { |
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const id = ++requestId.current; |
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setLoading( true ); |
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|
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apiFetch( { |
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path: '/cryptx/v1/preview', |
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method: 'POST', |
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data: { values }, |
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} ) |
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.then( ( response ) => { |
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// A slower earlier request must not overwrite a newer |
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// answer, or the preview shows the wrong settings. |
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if ( id === requestId.current ) { |
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setPreview( response ); |
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setError( null ); |
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} |
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} ) |
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.catch( ( caught ) => { |
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if ( id === requestId.current ) { |
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setError( |
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caught?.message || |
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__( |
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'The preview could not be generated.', |
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'cryptx' |
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) |
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); |
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} |
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} ) |
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.finally( () => { |
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if ( id === requestId.current ) { |
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setLoading( false ); |
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} |
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} ); |
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}, DEBOUNCE_MS ); |
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|
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return () => clearTimeout( handle ); |
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}, [ values ] ); |
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|
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return ( |
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<Card className="cryptx-preview"> |
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<CardHeader> |
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<h2 className="cryptx-section__title"> |
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{ __( 'Preview', 'cryptx' ) } |
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</h2> |
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{ isLoading && <Spinner /> } |
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</CardHeader> |
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<CardBody> |
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{ error && <p className="cryptx-preview__error">{ error }</p> } |
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|
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{ preview && ( |
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<> |
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<div className="cryptx-preview__block"> |
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<h3>{ __( 'What visitors see', 'cryptx' ) }</h3> |
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{ /* The markup comes from our own filters, applied |
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to a fixed sample address. */ } |
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<div |
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className="cryptx-preview__rendered" |
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dangerouslySetInnerHTML={ { |
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__html: preview.markup, |
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} } |
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/> |
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</div> |
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|
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<div className="cryptx-preview__block"> |
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<h3> |
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{ __( |
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'What a spam bot finds in the source', |
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'cryptx' |
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) } |
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</h3> |
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<pre className="cryptx-preview__source"> |
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<code>{ preview.markup }</code> |
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</pre> |
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</div> |
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|
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<p |
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className={ |
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'cryptx-preview__verdict is-' + |
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( |
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VERDICTS[ preview.exposure ] || |
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VERDICTS.none |
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).tone |
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} |
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> |
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{ ( |
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VERDICTS[ preview.exposure ] || VERDICTS.none |
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).text() } |
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</p> |
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</> |
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) } |
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</CardBody> |
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</Card> |
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); |
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} |
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|
