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| 1 | +import React from 'react' |
| 2 | +import {WebView, WebViewNavigation} from 'react-native-webview' |
| 3 | +import {ShouldStartLoadRequest} from 'react-native-webview/lib/WebViewTypes' |
| 4 | +import {StyleSheet} from 'react-native' |
| 5 | +import {CreateAccountState} from 'view/com/auth/create/state' |
| 6 | + |
| 7 | +const ALLOWED_HOSTS = [ |
| 8 | + 'bsky.social', |
| 9 | + 'bsky.app', |
| 10 | + 'staging.bsky.app', |
| 11 | + 'staging.bsky.dev', |
| 12 | + 'js.hcaptcha.com', |
| 13 | + 'newassets.hcaptcha.com', |
| 14 | + 'api2.hcaptcha.com', |
| 15 | +] |
| 16 | + |
| 17 | +export function CaptchaWebView({ |
| 18 | + url, |
| 19 | + stateParam, |
| 20 | + uiState, |
| 21 | + onSuccess, |
| 22 | + onError, |
| 23 | +}: { |
| 24 | + url: string |
| 25 | + stateParam: string |
| 26 | + uiState?: CreateAccountState |
| 27 | + onSuccess: (code: string) => void |
| 28 | + onError: () => void |
| 29 | +}) { |
| 30 | + const redirectHost = React.useMemo(() => { |
| 31 | + if (!uiState?.serviceUrl) return 'bsky.app' |
| 32 | + |
| 33 | + return uiState?.serviceUrl && |
| 34 | + new URL(uiState?.serviceUrl).host === 'staging.bsky.dev' |
| 35 | + ? 'staging.bsky.app' |
| 36 | + : 'bsky.app' |
| 37 | + }, [uiState?.serviceUrl]) |
| 38 | + |
| 39 | + const wasSuccessful = React.useRef(false) |
| 40 | + |
| 41 | + const onShouldStartLoadWithRequest = React.useCallback( |
| 42 | + (event: ShouldStartLoadRequest) => { |
| 43 | + const urlp = new URL(event.url) |
| 44 | + return ALLOWED_HOSTS.includes(urlp.host) |
| 45 | + }, |
| 46 | + [], |
| 47 | + ) |
| 48 | + |
| 49 | + const onNavigationStateChange = React.useCallback( |
| 50 | + (e: WebViewNavigation) => { |
| 51 | + if (wasSuccessful.current) return |
| 52 | + |
| 53 | + const urlp = new URL(e.url) |
| 54 | + if (urlp.host !== redirectHost) return |
| 55 | + |
| 56 | + const code = urlp.searchParams.get('code') |
| 57 | + if (urlp.searchParams.get('state') !== stateParam || !code) { |
| 58 | + onError() |
| 59 | + return |
| 60 | + } |
| 61 | + |
| 62 | + wasSuccessful.current = true |
| 63 | + onSuccess(code) |
| 64 | + }, |
| 65 | + [redirectHost, stateParam, onSuccess, onError], |
| 66 | + ) |
| 67 | + |
| 68 | + return ( |
| 69 | + <WebView |
| 70 | + source={{uri: url}} |
| 71 | + javaScriptEnabled |
| 72 | + style={styles.webview} |
| 73 | + onShouldStartLoadWithRequest={onShouldStartLoadWithRequest} |
| 74 | + onNavigationStateChange={onNavigationStateChange} |
| 75 | + scrollEnabled={false} |
| 76 | + /> |
| 77 | + ) |
| 78 | +} |
| 79 | + |
| 80 | +const styles = StyleSheet.create({ |
| 81 | + webview: { |
| 82 | + flex: 1, |
| 83 | + backgroundColor: 'transparent', |
| 84 | + borderRadius: 10, |
| 85 | + }, |
| 86 | +}) |
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