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add transformFromOnchain function #30

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87 changes: 69 additions & 18 deletions src/Reclaim.ts
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import type { Proof, Context } from './utils/interfaces'
import type { Proof, Context, OnchainProof, ProviderClaimData } from './utils/interfaces'
import { getIdentifierFromClaimInfo } from './witness'
import {
SignedClaim,
Expand All @@ -8,6 +8,9 @@ import {
TemplateData,
InitSessionResponse,
ClaimCreationType,
ClaimInfo,
CompleteClaimData,
OnchainSignedClaim,
} from './utils/types'
import { SessionStatus } from './utils/types'
import { ethers } from 'ethers'
Expand Down Expand Up @@ -103,23 +106,71 @@ export async function verifyProof(proofOrProofs: Proof | Proof[]): Promise<boole
return true
}

export function transformForOnchain(proof: Proof): { claimInfo: any, signedClaim: any } {
const claimInfoBuilder = new Map([
['context', proof.claimData.context],
['parameters', proof.claimData.parameters],
['provider', proof.claimData.provider],
]);
const claimInfo = Object.fromEntries(claimInfoBuilder);
const claimBuilder = new Map<string, number | string>([
['epoch', proof.claimData.epoch],
['identifier', proof.claimData.identifier],
['owner', proof.claimData.owner],
['timestampS', proof.claimData.timestampS],
]);
const signedClaim = {
claim: Object.fromEntries(claimBuilder),
signatures: proof.signatures,
};
// Reverses on-chain proofs
export function transformFromOnchain(onchainProof: OnchainProof): Proof {

const claimData: ProviderClaimData = {
provider: '',
parameters: '',
owner: '',
timestampS: 0,
context: '',
identifier: '',
epoch: 0
}

let proof: Proof = {
identifier: '',
claimData,
signatures: [],
witnesses: [],
extractedParameterValues: undefined
}

proof.signatures = onchainProof.signedClaim.signatures
proof.identifier = onchainProof.signedClaim.claim.identifier

proof.claimData = {
provider: onchainProof.claimInfo.provider,
parameters: onchainProof.claimInfo.parameters,
context: onchainProof.claimInfo.context,
owner: onchainProof.signedClaim.claim.owner,
timestampS: onchainProof.signedClaim.claim.timestampS,
epoch: onchainProof.signedClaim.claim.epoch,
identifier: onchainProof.signedClaim.claim.identifier,
}

proof.witnesses = [
{
"id": "0x244897572368eadf65bfbc5aec98d8e5443a9072",
"url": "wss://attestor.reclaimprotocol.org/ws"
}
]

return proof
}

// Transforms proofs for on-chain verification
export function transformForOnchain(proof: Proof): OnchainProof {

const claimInfo: ClaimInfo = {
context: proof.claimData.context,
provider: proof.claimData.provider,
parameters: proof.claimData.parameters
}

const claim : CompleteClaimData = {
owner: proof.claimData.owner,
epoch: proof.claimData.epoch,
identifier: proof.claimData.identifier,
timestampS: proof.claimData.timestampS
}

const signedClaim: OnchainSignedClaim = {
claim,
signatures: proof.signatures
}

return { claimInfo, signedClaim };
}

Expand Down
7 changes: 7 additions & 0 deletions src/utils/interfaces.ts
Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
import { ClaimInfo, OnchainSignedClaim, SignedClaim } from "./types";

// Proof-related interfaces
export interface Proof {
identifier: string;
Expand All @@ -14,6 +16,11 @@ export interface WitnessData {
url: string;
}

export interface OnchainProof {
claimInfo: ClaimInfo,
signedClaim: OnchainSignedClaim
}

export interface ProviderClaimData {
provider: string;
parameters: string;
Expand Down
7 changes: 6 additions & 1 deletion src/utils/types.ts
Original file line number Diff line number Diff line change
Expand Up @@ -8,13 +8,18 @@ export type ClaimInfo = Pick<ProviderClaimData, 'context' | 'provider' | 'parame

export type AnyClaimInfo = ClaimInfo | { identifier: ClaimID };

export type CompleteClaimData = Pick<ProviderClaimData, 'owner' | 'timestampS' | 'epoch'> & AnyClaimInfo;
export type CompleteClaimData = Pick<ProviderClaimData, 'owner' | 'timestampS' | 'epoch' | 'identifier' > & AnyClaimInfo;

export type SignedClaim = {
claim: CompleteClaimData;
signatures: Uint8Array[];
};

export type OnchainSignedClaim = {
claim: CompleteClaimData;
signatures: string[];
};

// Request and session-related types
export type CreateVerificationRequest = {
providerIds: string[];
Expand Down