Samuel Newman
134 lines
4.2 KiB
TypeScript
134 lines
4.2 KiB
TypeScript
import {useMemo} from 'react'
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import {
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type AppBskyAgeassuranceDefs,
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getAgeAssuranceRegionConfig,
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type ModerationPrefs,
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} from '@atproto/api'
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import {getAge} from '#/lib/strings/time'
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import {DEFAULT_LOGGED_OUT_LABEL_PREFERENCES} from '#/state/queries/preferences/const'
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import {FALLBACK_REGION_CONFIG, MIN_ACCESS_AGE} from '#/ageAssurance/const'
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import {useAgeAssuranceServerDataContext} from '#/ageAssurance/data'
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import {
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AgeAssuranceAccess,
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type AgeAssuranceFlags,
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type AgeAssuranceMetadata,
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type AgeAssuranceState,
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} from '#/ageAssurance/types'
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import {type Geolocation, useGeolocation} from '#/geolocation'
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/**
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* Get age assurance region config based on geolocation, with fallback to
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* app defaults if no region config is found.
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*
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* See {@link getAgeAssuranceRegionConfig} for the generic option, which can
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* return undefined if the geolocation does not match any AA region.
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*/
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export function getAgeAssuranceRegionConfigWithFallback(
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config: AppBskyAgeassuranceDefs.Config,
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geolocation: Geolocation,
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): AppBskyAgeassuranceDefs.ConfigRegion {
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const region = getAgeAssuranceRegionConfig(config, {
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countryCode: geolocation.countryCode ?? '',
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regionCode: geolocation.regionCode,
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})
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return region || FALLBACK_REGION_CONFIG
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}
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/**
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* Hook to get the age assurance region config based on current geolocation.
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* Does not fall-back to our app defaults. If no config is found, returns
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* undefined, which indicates no regional age assurance rules apply.
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*/
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export function useAgeAssuranceRegionConfig() {
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const geolocation = useGeolocation()
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const {config} = useAgeAssuranceServerDataContext()
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return useMemo(() => {
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if (!config) return
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// use generic helper, we want to potentially return undefined
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return getAgeAssuranceRegionConfig(config, {
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countryCode: geolocation.countryCode ?? '',
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regionCode: geolocation.regionCode,
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})
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}, [config, geolocation])
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}
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/**
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* Hook to get the age assurance region config based on current geolocation.
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* Falls back to our app defaults if no region config is found.
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*/
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export function useAgeAssuranceRegionConfigWithFallback() {
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return useAgeAssuranceRegionConfig() || FALLBACK_REGION_CONFIG
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}
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/**
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* Some users may have erroneously set their birth date to the current date
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* if one wasn't set on their account. We previously didn't do validation on
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* the bday dialog, and it defaulted to the current date. This bug _has_ been
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* seen in production, so we need to check for it where possible.
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*/
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export function isLegacyBirthdateBug(birthDate: string) {
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return ['2025', '2024', '2023'].includes((birthDate || '').slice(0, 4))
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}
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/**
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* Returns whether the date (converted to an age as a whole integer) is under
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* the provided minimum age.
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*/
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export function isUnderAge(birthDate: string, age: number) {
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return getAge(new Date(birthDate)) < age
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}
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export function getBirthdateStringFromAge(age: number) {
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const today = new Date()
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return new Date(
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today.getFullYear() - age,
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today.getMonth(),
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today.getDate() - 1, // set to day before to ensure age is reached
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).toISOString()
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}
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export const makeAgeRestrictedModerationPrefs = (
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prefs: ModerationPrefs,
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): ModerationPrefs => ({
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...prefs,
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adultContentEnabled: false,
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labels: DEFAULT_LOGGED_OUT_LABEL_PREFERENCES,
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})
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export function computeAgeAssuranceFlags({
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state,
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regionConfig,
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metadata,
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}: {
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state: AgeAssuranceState
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regionConfig: AppBskyAgeassuranceDefs.ConfigRegion
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metadata?: AgeAssuranceMetadata
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}): AgeAssuranceFlags {
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const isAgeRestricted = state.access !== AgeAssuranceAccess.Full
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const chatDisabled = isAgeRestricted
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const isDeclaredUnderAdultAge = metadata?.declaredAge
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? metadata.declaredAge < 18
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: true
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const groupChatDisabled = chatDisabled || isDeclaredUnderAdultAge
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const isOverRegionMinAccessAge = metadata?.declaredAge
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? metadata.declaredAge >= regionConfig.minAccessAge
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: false
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const isOverAppMinAccessAge = metadata?.declaredAge
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? metadata.declaredAge >= MIN_ACCESS_AGE
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: false
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const adultContentDisabled =
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state.access !== AgeAssuranceAccess.Full || isDeclaredUnderAdultAge
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return {
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isAgeRestricted,
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adultContentDisabled,
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chatDisabled,
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groupChatDisabled,
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isDeclaredUnderAdultAge,
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isOverRegionMinAccessAge,
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isOverAppMinAccessAge,
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}
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}
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