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* Updates for auth-next * Update stellar-base to 8.2.2-soroban.10 * Naming feedback * Add a couple unit tests for assembleTransaction
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Paul Bellamy
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Feb 14, 2023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| import { | ||
| Account, | ||
| FeeBumpTransaction, | ||
| Operation, | ||
| Transaction, | ||
| TransactionBuilder, | ||
| xdr, | ||
| } from "stellar-base"; | ||
|
|
||
| // TODO: Transaction is immutable, so we need to re-build it here. :( | ||
| export function assembleTransaction( | ||
| raw: Transaction | FeeBumpTransaction, | ||
| networkPassphrase: string, | ||
| simulated: Array<null | { | ||
| footprint: Buffer | string | xdr.LedgerFootprint; | ||
| auth: Array<Buffer | string | xdr.ContractAuth>; | ||
| }>, | ||
| ): Transaction { | ||
| if ("innerTransaction" in raw) { | ||
| // TODO: Handle feebump transactions | ||
| return assembleTransaction( | ||
| raw.innerTransaction, | ||
| networkPassphrase, | ||
| simulated, | ||
| ); | ||
| } | ||
|
|
||
| if (simulated.length !== raw.operations.length) { | ||
| throw new Error( | ||
| "number of simulated operations not equal to number of transaction operations", | ||
| ); | ||
| } | ||
|
|
||
| // TODO: Figure out a cleaner way to clone this transaction. | ||
| const source = new Account(raw.source, `${parseInt(raw.sequence, 10) - 1}`); | ||
| const txn = new TransactionBuilder(source, { | ||
| fee: raw.fee, | ||
| memo: raw.memo, | ||
| networkPassphrase, | ||
| timebounds: raw.timeBounds, | ||
| ledgerbounds: raw.ledgerBounds, | ||
| minAccountSequence: raw.minAccountSequence, | ||
| minAccountSequenceAge: raw.minAccountSequenceAge, | ||
| minAccountSequenceLedgerGap: raw.minAccountSequenceLedgerGap, | ||
| extraSigners: raw.extraSigners, | ||
| }); | ||
| for (let i = 0; i < raw.operations.length; i++) { | ||
| const rawOp = raw.operations[i]; | ||
| if ("function" in rawOp) { | ||
| const sim = simulated[i]; | ||
| if (!sim) { | ||
| throw new Error("missing simulated operation"); | ||
| } | ||
| let footprint = sim.footprint; | ||
| if (!(footprint instanceof xdr.LedgerFootprint)) { | ||
| footprint = xdr.LedgerFootprint.fromXDR(footprint.toString(), "base64"); | ||
| } | ||
| const auth = sim.auth.map((a) => | ||
| a instanceof xdr.ContractAuth | ||
| ? a | ||
| : xdr.ContractAuth.fromXDR(a.toString(), "base64"), | ||
| ); | ||
| // TODO: Figure out a cleaner way to clone these operations | ||
| txn.addOperation( | ||
| Operation.invokeHostFunction({ | ||
| function: rawOp.function, | ||
| parameters: rawOp.parameters, | ||
| footprint, | ||
| auth, | ||
| }), | ||
| ); | ||
| } else { | ||
| // TODO: Handle this. | ||
| throw new Error("Unsupported operation type"); | ||
| } | ||
| } | ||
| return txn.build(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| const xdr = SorobanClient.xdr; | ||
|
|
||
| describe("assembleTransaction", () => { | ||
| describe("FeeBumpTransaction", () => { | ||
| // TODO: Add support for fee bump transactions | ||
| }); | ||
|
|
||
| describe("Transaction", () => { | ||
| const networkPassphrase = SorobanClient.Networks.TESTNET; | ||
| const source = new SorobanClient.Account( | ||
| "GBZXN7PIRZGNMHGA7MUUUF4GWPY5AYPV6LY4UV2GL6VJGIQRXFDNMADI", | ||
| "1", | ||
| ); | ||
| const emptyFootprint = new xdr.LedgerFootprint({ | ||
| readOnly: [], | ||
| readWrite: [], | ||
| }); | ||
| function emptyTransaction() { | ||
| return new SorobanClient.TransactionBuilder(source, { | ||
| fee: 100, | ||
| networkPassphrase, | ||
| v1: true, | ||
| }) | ||
| .addOperation( | ||
| SorobanClient.Operation.invokeHostFunction({ | ||
| function: xdr.HostFunction.hostFunctionTypeInvokeContract([]), | ||
| parameters: [], | ||
| footprint: emptyFootprint, | ||
| auth: [], | ||
| }), | ||
| ) | ||
| .setTimeout(SorobanClient.TimeoutInfinite) | ||
| .build(); | ||
| } | ||
|
|
||
| it("adds the footprint to the transaction", () => { | ||
| const txn = emptyTransaction(); | ||
|
|
||
| const result = SorobanClient.assembleTransaction(txn, networkPassphrase, [ | ||
| { | ||
| auth: [], | ||
| footprint: new xdr.LedgerFootprint({ | ||
| readOnly: [ | ||
| xdr.LedgerKey.contractCode( | ||
| new xdr.LedgerKeyContractCode({ | ||
| hash: Buffer.alloc(32), | ||
| }), | ||
| ), | ||
| ], | ||
| readWrite: [], | ||
| }), | ||
| }, | ||
| ]); | ||
|
|
||
| expect(result.operations[0].footprint.readOnly.length).to.equal(1); | ||
| }); | ||
|
|
||
| it("adds the auth to the transaction", () => { | ||
| const txn = emptyTransaction(); | ||
|
|
||
| const result = SorobanClient.assembleTransaction(txn, networkPassphrase, [ | ||
| { | ||
| auth: [ | ||
| new xdr.ContractAuth({ | ||
| addressWithNonce: null, | ||
| rootInvocation: new xdr.AuthorizedInvocation({ | ||
| contractId: Buffer.alloc(32), | ||
| functionName: "foo", | ||
| args: [], | ||
| subInvocations: [], | ||
| }), | ||
| signatureArgs: [], | ||
| }), | ||
| ], | ||
| footprint: emptyFootprint, | ||
| }, | ||
| ]); | ||
|
|
||
| expect(result.operations[0].auth.length).to.equal(1); | ||
| }); | ||
| }); | ||
| }); |
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