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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,18 +1,36 @@ | ||
| import { useEffect, useState } from 'react' | ||
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|
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| import { ProofRequestTemplate } from '../../verifier' | ||
| import { useConfiguration } from '../contexts/configuration' | ||
| import { useStore } from '../contexts/store' | ||
| import { applyTemplateMarkers, useRemoteProofBundleResolver } from '../utils/proofBundle' | ||
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|
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| export const useTemplates = (): Array<ProofRequestTemplate> => { | ||
| const [store] = useStore() | ||
| const { proofRequestTemplates } = useConfiguration() | ||
| return (proofRequestTemplates && proofRequestTemplates(store.preferences.acceptDevCredentials)) || [] | ||
| const [proofRequestTemplates, setProofRequestTemplates] = useState<ProofRequestTemplate[]>([]) | ||
| const { proofTemplateBaseUrl } = useConfiguration() | ||
| const resolver = useRemoteProofBundleResolver(proofTemplateBaseUrl) | ||
| useEffect(() => { | ||
| resolver.resolve(store.preferences.acceptDevCredentials).then((templates) => { | ||
| if (templates) { | ||
| setProofRequestTemplates(applyTemplateMarkers(templates)) | ||
| } | ||
| }) | ||
| }, []) | ||
| return proofRequestTemplates | ||
| } | ||
|
|
||
| export const useTemplate = (templateId: string): ProofRequestTemplate | undefined => { | ||
| const { proofRequestTemplates } = useConfiguration() | ||
| const [store] = useStore() | ||
| return ( | ||
| proofRequestTemplates && | ||
| proofRequestTemplates(store.preferences.acceptDevCredentials).find((template) => template.id === templateId) | ||
| ) | ||
| const [proofRequestTemplate, setProofRequestTemplate] = useState<ProofRequestTemplate | undefined>(undefined) | ||
| const { proofTemplateBaseUrl } = useConfiguration() | ||
| const resolver = useRemoteProofBundleResolver(proofTemplateBaseUrl) | ||
| useEffect(() => { | ||
| resolver.resolveById(templateId, store.preferences.acceptDevCredentials).then((template) => { | ||
| if (template) { | ||
| setProofRequestTemplate(applyTemplateMarkers(template)) | ||
| } | ||
| }) | ||
| }, []) | ||
| return proofRequestTemplate | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| import axios from 'axios' | ||
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|
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| import { AnonCredsProofRequestTemplatePayload, ProofRequestTemplate, useProofRequestTemplates } from '../../verifier' | ||
| import { useConfiguration } from '../contexts/configuration' | ||
|
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||
| const calculatePreviousYear = (yearOffset: number) => { | ||
| const pastDate = new Date() | ||
| pastDate.setFullYear(pastDate.getFullYear() + yearOffset) | ||
| return parseInt(pastDate.toISOString().split('T')[0].replace(/-/g, '')) | ||
| } | ||
|
|
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| export const applyTemplateMarkers = (templates: any): any => { | ||
| if (!templates) return templates | ||
| const markerActions: { [key: string]: (param: string) => string } = { | ||
| now: () => Math.floor(new Date().getTime() / 1000).toString(), | ||
| currentDate: (offset: string) => calculatePreviousYear(parseInt(offset)).toString(), | ||
| } | ||
| let templateString = JSON.stringify(templates) | ||
| // regex to find all markers in the template so we can replace them with computed values | ||
| const markers = [...templateString.matchAll(/"@\{(\w+)(?:\((\S*)\))?\}"/gm)] | ||
|
|
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| markers.forEach((marker) => { | ||
| const markerValue = markerActions[marker[1] as string](marker[2]) | ||
| templateString = templateString.replace(marker[0], markerValue) | ||
| }) | ||
| return JSON.parse(templateString) | ||
| } | ||
|
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| export const applyDevRestrictions = (templates: ProofRequestTemplate[]): ProofRequestTemplate[] => { | ||
| return templates.map((temp) => { | ||
| return { | ||
| ...temp, | ||
| payload: { | ||
| ...temp.payload, | ||
| data: (temp.payload as AnonCredsProofRequestTemplatePayload).data.map((data) => { | ||
| return { | ||
| ...data, | ||
| requestedAttributes: data.requestedAttributes?.map((attr) => { | ||
| return { | ||
| ...attr, | ||
| restrictions: [...(attr.restrictions ?? []), ...(attr.devRestrictions ?? [])], | ||
| devRestrictions: [], | ||
| } | ||
| }), | ||
| requestedPredicates: data.requestedPredicates?.map((pred) => { | ||
| return { | ||
| ...pred, | ||
| restrictions: [...(pred.restrictions ?? []), ...(pred.devRestrictions ?? [])], | ||
| devRestrictions: [], | ||
| } | ||
| }), | ||
| } | ||
| }), | ||
| }, | ||
| } | ||
| }) | ||
| } | ||
|
|
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| export interface ProofBundleResolverType { | ||
| resolve: (acceptDevRestrictions: boolean) => Promise<ProofRequestTemplate[] | undefined> | ||
| resolveById: (templateId: string, acceptDevRestrictions: boolean) => Promise<ProofRequestTemplate | undefined> | ||
| } | ||
|
|
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| export const useRemoteProofBundleResolver = (indexFileBaseUrl: string | undefined): ProofBundleResolverType => { | ||
| if (indexFileBaseUrl) { | ||
| return new RemoteProofBundleResolver(indexFileBaseUrl) | ||
| } else { | ||
| return new DefaultProofBundleResolver() | ||
| } | ||
| } | ||
|
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| export class RemoteProofBundleResolver implements ProofBundleResolverType { | ||
| private remoteServer | ||
| private templateData: ProofRequestTemplate[] | undefined | ||
|
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| public constructor(indexFileBaseUrl: string) { | ||
| this.remoteServer = axios.create({ | ||
| baseURL: indexFileBaseUrl, | ||
| }) | ||
| } | ||
| public async resolve(acceptDevRestrictions: boolean): Promise<ProofRequestTemplate[] | undefined> { | ||
| if (this.templateData) { | ||
| let templateData = this.templateData | ||
| if (acceptDevRestrictions) { | ||
| templateData = applyDevRestrictions(templateData) | ||
| } | ||
| return Promise.resolve(templateData) | ||
| } | ||
| return this.remoteServer.get('proof-templates.json').then((response) => { | ||
| try { | ||
| let templateData: ProofRequestTemplate[] = response.data | ||
| this.templateData = templateData | ||
| if (acceptDevRestrictions) { | ||
| templateData = applyDevRestrictions(templateData) | ||
| } | ||
| return templateData | ||
| } catch (error) { | ||
| return undefined | ||
| } | ||
| }) | ||
| } | ||
| public async resolveById( | ||
| templateId: string, | ||
| acceptDevRestrictions: boolean | ||
| ): Promise<ProofRequestTemplate | undefined> { | ||
| if (!this.templateData) { | ||
| return (await this.resolve(acceptDevRestrictions))?.find((template) => template.id === templateId) | ||
| } else { | ||
| let templateData = this.templateData | ||
| if (acceptDevRestrictions) { | ||
| templateData = applyDevRestrictions(templateData) | ||
| } | ||
| const template = templateData.find((template) => template.id === templateId) | ||
| return template | ||
| } | ||
| } | ||
| } | ||
|
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||
| export class DefaultProofBundleResolver implements ProofBundleResolverType { | ||
| private proofRequestTemplates | ||
| public constructor() { | ||
| const { proofRequestTemplates } = useConfiguration() | ||
| this.proofRequestTemplates = proofRequestTemplates ?? useProofRequestTemplates | ||
| } | ||
| public async resolve(acceptDevRestrictions: boolean): Promise<ProofRequestTemplate[]> { | ||
| return Promise.resolve(this.proofRequestTemplates(acceptDevRestrictions)) | ||
| } | ||
| public async resolveById( | ||
| templateId: string, | ||
| acceptDevRestrictions: boolean | ||
| ): Promise<ProofRequestTemplate | undefined> { | ||
| return Promise.resolve( | ||
| this.proofRequestTemplates(acceptDevRestrictions).find((template) => template.id === templateId) | ||
| ) | ||
| } | ||
| } |
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