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feat(colors): prove second-client acceptance #575
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4e101ad
refactor(colors): share the private Program ABI v2 contract
lemone112 a28c590
test(colors): add the independent worker client
lemone112 bd07367
test(colors): serve admitted worker fixtures
lemone112 ff8e2fb
test(colors): kill a vacuous second-client proof
lemone112 b1f548e
fix(release): admit the private ABI package member
lemone112 c4836ce
fix(colors): close second-client review findings
lemone112 158a908
fix(colors): bind and bound the worker acceptance path
lemone112 File filter
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| export const OUTPUT_BINDING = "--lab-private-program-output"; | ||
| export const EXPECTED_OUTPUT = 17; | ||
| export const EXPECTED_SINK_OUTPUT = 501; | ||
| export const REQUEST_HEX = "4c43465102004600404040000000000000e03f00000000000050409a9999999999c93f01606060f50100001f0000000100000000000000010100000080808000000000000000"; | ||
| export const UPDATE_HEX = "4c434655020028001f00000002000000000000000101020000008080800000000000000000000000"; | ||
| export const CHANGED_UPDATE_HEX = "4c434655020028001f0000000300000000000000010103000000ffffff0000000000000000000000"; | ||
| export const EXPECTED_CONTENT_IDENTITY = "4daf4731d823ba228f4189d08c76183dd8a81e8b593ff709828b7329e075a914"; | ||
|
|
||
| export function exactWireBytes(hex) { | ||
| if (!/^(?:[0-9a-f]{2})+$/u.test(hex)) throw new TypeError("wire vector must be lowercase hex"); | ||
| const bytes = new Uint8Array(hex.length / 2); | ||
| for (let index = 0; index < bytes.length; index += 1) { | ||
| bytes[index] = Number.parseInt(hex.slice(index * 2, index * 2 + 2), 16); | ||
| } | ||
| return bytes; | ||
| } | ||
|
|
||
| export function receiptFingerprint(receipt) { | ||
| return JSON.stringify({ | ||
| output: receipt.output, | ||
| sinkOutput: receipt.sinkOutput, | ||
| state: receipt.state, | ||
| stream: receipt.stream, | ||
| revision: receipt.revision.toString(), | ||
| paintSource: receipt.paintSource, | ||
| paintOpacityBits: receipt.paintOpacityBits.toString(16).padStart(16, "0"), | ||
| contentIdentity: receipt.contentIdentity, | ||
| }); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| import { | ||
| decodeCertifiedReceipt, | ||
| DISPOSE_TOKEN_BASE_V1, | ||
| EXPORTS_V1, | ||
| HOST_CONFIRM_DISPOSED_V1, | ||
| HOST_DISPOSE_CONFIRMED_V1, | ||
| HOST_INSTALL_SUCCESS_V1, | ||
| HOST_INSTALL_V1, | ||
| HOST_MODULE_V1, | ||
| OPERATION_CONFIRM_EXACT_V1, | ||
| OPERATION_REVOKE_ALL_V1, | ||
| OPERATION_SET_ALL_V1, | ||
| REQUEST_REVISION_OFFSET, | ||
| REQUEST_SINK_OUTPUT_OFFSET, | ||
| REQUEST_STREAM_OFFSET, | ||
| REQUEST_V2_LENGTH, | ||
| RESULT_V2_LENGTH, | ||
| UPDATE_REVISION_OFFSET, | ||
| UPDATE_STREAM_OFFSET, | ||
| UPDATE_V2_LENGTH, | ||
| } from "/installed/private-program/abi-v2.js"; | ||
| import { | ||
| CHANGED_UPDATE_HEX, | ||
| exactWireBytes, | ||
| receiptFingerprint, | ||
| REQUEST_HEX, | ||
| UPDATE_HEX, | ||
| } from "./vectors.mjs"; | ||
|
|
||
| const WASM_URL = "/installed/private-program/labcolors_private_program.wasm"; | ||
|
|
||
| function u32(value) { | ||
| return value >>> 0; | ||
| } | ||
|
|
||
| function checkedView(memory, pointer, length) { | ||
| const offset = u32(pointer); | ||
| if (offset > memory.buffer.byteLength || length > memory.buffer.byteLength - offset) { | ||
| throw new RangeError("private Program worker memory range is invalid"); | ||
| } | ||
| return new Uint8Array(memory.buffer, offset, length); | ||
| } | ||
|
|
||
| async function runLifecycle() { | ||
| let exports; | ||
| let installedOutput = 0; | ||
| let installedSinkOutput = 0; | ||
| let expectedSinkOutput = 0; | ||
| let sequence = 0n; | ||
| let generation = 0; | ||
| let disposeConfirmed = false; | ||
|
|
||
| function install( | ||
| rawGeneration, | ||
| rawOperation, | ||
| _revisionLow, | ||
| _revisionHigh, | ||
| expectedLow, | ||
| expectedHigh, | ||
| desiredLow, | ||
| desiredHigh, | ||
| rawOutput, | ||
| rawSinkOutput, | ||
| ) { | ||
| generation = u32(rawGeneration); | ||
| const operation = u32(rawOperation); | ||
| const expected = BigInt(u32(expectedLow)) | (BigInt(u32(expectedHigh)) << 32n); | ||
| const desired = BigInt(u32(desiredLow)) | (BigInt(u32(desiredHigh)) << 32n); | ||
| const output = u32(rawOutput); | ||
| const sinkOutput = u32(rawSinkOutput); | ||
| if (operation === OPERATION_CONFIRM_EXACT_V1) { | ||
| return expected === sequence && desired === sequence && output === installedOutput && sinkOutput === installedSinkOutput | ||
| ? HOST_INSTALL_SUCCESS_V1 | ||
| : 0; | ||
| } | ||
| if (expected !== sequence || desired !== sequence + 1n) return 0; | ||
| if (operation === OPERATION_SET_ALL_V1) { | ||
| if (output === 0 || sinkOutput !== expectedSinkOutput) return 0; | ||
| installedOutput = output; | ||
| installedSinkOutput = sinkOutput; | ||
| } else if (operation === OPERATION_REVOKE_ALL_V1) { | ||
| if (output !== 0 || sinkOutput !== 0) return 0; | ||
| installedOutput = 0; | ||
| installedSinkOutput = 0; | ||
| } else { | ||
| return 0; | ||
| } | ||
| sequence = desired; | ||
| return HOST_INSTALL_SUCCESS_V1; | ||
| } | ||
|
|
||
| function confirmDisposed(rawGeneration, rawToken) { | ||
| disposeConfirmed = u32(rawGeneration) === generation && u32(rawToken) === generation; | ||
| return disposeConfirmed ? HOST_DISPOSE_CONFIRMED_V1 : 0; | ||
| } | ||
|
|
||
| const response = await fetch(WASM_URL); | ||
| if (response.ok !== true) throw new Error(`private Program WASM fetch failed: ${response.status}`); | ||
| const source = await response.arrayBuffer(); | ||
| const instance = await WebAssembly.instantiate(source, { | ||
| [HOST_MODULE_V1]: { | ||
| [HOST_INSTALL_V1]: install, | ||
| [HOST_CONFIRM_DISPOSED_V1]: confirmDisposed, | ||
| }, | ||
| }); | ||
| exports = instance.instance.exports; | ||
| const memory = exports.memory; | ||
|
|
||
| function invoke(bytes, pointerName, length, operationName, minimumRevision) { | ||
| checkedView(memory, exports[pointerName](), length).set(bytes); | ||
| const status = u32(exports[operationName]()); | ||
| if (status !== 0) throw new Error(`${operationName} failed with status ${status}`); | ||
| return decodeCertifiedReceipt({ | ||
| bytes: new Uint8Array(checkedView(memory, exports[EXPORTS_V1.resultPointer](), RESULT_V2_LENGTH)), | ||
| expectedSinkOutput, | ||
| installedOutput, | ||
| installedSinkOutput, | ||
| expectedStream: new DataView(bytes.buffer, bytes.byteOffset, bytes.byteLength).getUint32( | ||
| operationName === EXPORTS_V1.run ? REQUEST_STREAM_OFFSET : UPDATE_STREAM_OFFSET, | ||
| true, | ||
| ), | ||
| minimumRevision, | ||
| }); | ||
| } | ||
|
|
||
| const request = exactWireBytes(REQUEST_HEX); | ||
| expectedSinkOutput = new DataView(request.buffer).getUint32(REQUEST_SINK_OUTPUT_OFFSET, true); | ||
| const initial = invoke( | ||
| request, | ||
| EXPORTS_V1.requestPointer, | ||
| REQUEST_V2_LENGTH, | ||
| EXPORTS_V1.run, | ||
| new DataView(request.buffer).getBigUint64(REQUEST_REVISION_OFFSET, true), | ||
| ); | ||
| const update = exactWireBytes(UPDATE_HEX); | ||
| const updated = invoke( | ||
| update, | ||
| EXPORTS_V1.updatePointer, | ||
| UPDATE_V2_LENGTH, | ||
| EXPORTS_V1.update, | ||
| new DataView(update.buffer).getBigUint64(UPDATE_REVISION_OFFSET, true), | ||
| ); | ||
| const changedUpdate = exactWireBytes(CHANGED_UPDATE_HEX); | ||
| const changed = invoke( | ||
| changedUpdate, | ||
| EXPORTS_V1.updatePointer, | ||
| UPDATE_V2_LENGTH, | ||
| EXPORTS_V1.update, | ||
| new DataView(changedUpdate.buffer).getBigUint64(UPDATE_REVISION_OFFSET, true), | ||
| ); | ||
|
|
||
| const token = u32(exports[EXPORTS_V1.beginDispose]()); | ||
| if (token !== generation + DISPOSE_TOKEN_BASE_V1) throw new Error("dispose token mismatch"); | ||
| if (u32(exports[EXPORTS_V1.commitDispose](token)) !== 0 || !disposeConfirmed) { | ||
| throw new Error("dispose confirmation mismatch"); | ||
| } | ||
| return Object.freeze({ | ||
| initial: receiptFingerprint(initial), | ||
| updated: receiptFingerprint(updated), | ||
| changed: receiptFingerprint(changed), | ||
| }); | ||
| } | ||
|
|
||
| self.addEventListener("message", async (event) => { | ||
| if (event.data !== "run") return; | ||
| try { | ||
| self.postMessage({ ok: true, value: await runLifecycle() }); | ||
| } catch (error) { | ||
| self.postMessage({ ok: false, error: error instanceof Error ? error.message : String(error) }); | ||
| } | ||
| }); |
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