# beacon_chain # Copyright (c) 2018-2024 Status Research & Development GmbH # Licensed and distributed under either of # * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT). # * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0). # at your option. This file may not be copied, modified, or distributed except according to those terms. {.push raises: [].} import std/[typetraits, strutils] import results, stew/[assign2, base10, byteutils, endians2], presto/common, libp2p/peerid, serialization, json_serialization, json_serialization/std/[net, sets], json_serialization/stew/results as jsonSerializationResults, stint, chronicles import ".."/[eth2_ssz_serialization, forks, keystore], ".."/../consensus_object_pools/block_pools_types, ".."/datatypes/[phase0, altair, bellatrix], ".."/mev/[bellatrix_mev, capella_mev], ".."/../validators/slashing_protection_common, "."/[rest_types, rest_keymanager_types] import nimcrypto/utils as ncrutils from ".."/datatypes/capella import SignedBeaconBlock from ".."/datatypes/deneb import BeaconState export eth2_ssz_serialization, results, peerid, common, serialization, chronicles, json_serialization, net, sets, rest_types, slashing_protection_common, jsonSerializationResults, rest_keymanager_types from web3/primitives import BlockHash export primitives.BlockHash func decodeMediaType*( contentType: Opt[ContentTypeData]): Result[MediaType, string] = if contentType.isNone or isWildCard(contentType.get.mediaType): return err("Missing or incorrect Content-Type") ok contentType.get.mediaType type EmptyBody* = object createJsonFlavor RestJson RestJson.useDefaultSerializationFor( AggregateAndProof, Attestation, AttestationData, AttesterSlashing, BLSToExecutionChange, BeaconBlockHeader, BlobSidecar, BlobSidecarInfoObject, BlobsBundle, Checkpoint, ContributionAndProof, DataEnclosedObject, DataMetaEnclosedObject, DataOptimisticAndFinalizedObject, DataOptimisticObject, DataRootEnclosedObject, DataVersionEnclosedObject, DeleteKeystoresBody, DeleteKeystoresResponse, DeleteRemoteKeystoresResponse, DenebSignedBlockContents, Deposit, DepositData, DepositTreeSnapshot, DistributedKeystoreInfo, EmptyBody, Eth1Data, EventBeaconBlockObject, ExecutionPayloadAndBlobsBundle, Fork, GetBlockAttestationsResponse, GetBlockHeaderResponse, GetBlockHeadersResponse, GetDepositContractResponse, GetDepositSnapshotResponse, GetDistributedKeystoresResponse, GetEpochCommitteesResponse, GetEpochSyncCommitteesResponse, GetForkChoiceResponse, GetForkScheduleResponse, GetGenesisResponse, GetHeaderResponseDeneb, GetKeystoresResponse, GetNextWithdrawalsResponse, GetPoolAttesterSlashingsResponse, GetPoolProposerSlashingsResponse, GetPoolVoluntaryExitsResponse, GetRemoteKeystoresResponse, GetSpecVCResponse, GetStateFinalityCheckpointsResponse, GetStateForkResponse, GetStateRandaoResponse, GetStateRootResponse, GetStateValidatorBalancesResponse, GetStateValidatorResponse, GetStateValidatorsResponse, GetValidatorGasLimitResponse, HistoricalSummary, ImportDistributedKeystoresBody, ImportRemoteKeystoresBody, IndexedAttestation, KeymanagerGenericError, KeystoreInfo, ListFeeRecipientResponse, ListGasLimitResponse, GetGraffitiResponse, GraffitiResponse, PendingAttestation, PostKeystoresResponse, PrepareBeaconProposer, ProposerSlashing, RemoteKeystoreInfo, RemoteSignerInfo, RequestItemStatus, RestAttesterDuty, RestBeaconCommitteeSelection, RestBeaconStatesCommittees, RestBeaconStatesFinalityCheckpoints, RestBlockHeader, RestBlockHeaderInfo, RestChainHeadV2, RestCommitteeSubscription, RestContributionAndProof, RestDepositContract, RestEpochRandao, RestEpochSyncCommittee, RestExecutionPayload, RestExtraData, RestGenesis, RestIndexedErrorMessage, RestIndexedErrorMessageItem, RestMetadata, RestNetworkIdentity, RestNimbusTimestamp1, RestNimbusTimestamp2, RestNode, RestNodeExtraData, RestNodePeer, RestNodeVersion, RestPeerCount, RestProposerDuty, RestRoot, RestSignedBlockHeader, RestSignedContributionAndProof, RestSyncCommitteeContribution, RestSyncCommitteeDuty, RestSyncCommitteeMessage, RestSyncCommitteeSelection, RestSyncCommitteeSubscription, RestSyncInfo, RestValidator, RestValidatorBalance, SPDIR, SPDIR_Meta, SPDIR_SignedAttestation, SPDIR_SignedBlock, SPDIR_Validator, SetFeeRecipientRequest, SetGasLimitRequest, SetGraffitiRequest, SignedAggregateAndProof, SignedBLSToExecutionChange, SignedBeaconBlockHeader, SignedContributionAndProof, SignedValidatorRegistrationV1, SignedVoluntaryExit, SubmitBlindedBlockResponseDeneb, SyncAggregate, SyncAggregatorSelectionData, SyncCommittee, SyncCommitteeContribution, SyncCommitteeMessage, TrustedAttestation, Validator, ValidatorRegistrationV1, VoluntaryExit, Web3SignerAggregationSlotData, Web3SignerDepositData, Web3SignerErrorResponse, Web3SignerForkInfo, Web3SignerMerkleProof, Web3SignerRandaoRevealData, Web3SignerSignatureResponse, Web3SignerStatusResponse, Web3SignerSyncCommitteeMessageData, Web3SignerValidatorRegistration, Withdrawal, altair.BeaconBlock, altair.BeaconBlockBody, altair.BeaconState, altair.LightClientBootstrap, altair.LightClientFinalityUpdate, altair.LightClientHeader, altair.LightClientOptimisticUpdate, altair.LightClientUpdate, altair.SignedBeaconBlock, bellatrix.BeaconBlock, bellatrix.BeaconBlockBody, bellatrix.BeaconState, bellatrix.ExecutionPayload, bellatrix.ExecutionPayloadHeader, bellatrix.SignedBeaconBlock, bellatrix_mev.BlindedBeaconBlockBody, bellatrix_mev.BlindedBeaconBlock, bellatrix_mev.SignedBlindedBeaconBlock, capella.BeaconBlock, capella.BeaconBlockBody, capella.BeaconState, capella.ExecutionPayload, capella.ExecutionPayloadHeader, capella.LightClientBootstrap, capella.LightClientFinalityUpdate, capella.LightClientHeader, capella.LightClientOptimisticUpdate, capella.LightClientUpdate, capella.SignedBeaconBlock, capella_mev.BlindedBeaconBlock, capella_mev.BlindedBeaconBlockBody, capella_mev.SignedBlindedBeaconBlock, deneb.BeaconBlock, deneb.BeaconBlockBody, deneb.BeaconState, deneb.BlockContents, deneb.ExecutionPayload, deneb.ExecutionPayloadHeader, deneb.LightClientBootstrap, deneb.LightClientFinalityUpdate, deneb.LightClientHeader, deneb.LightClientOptimisticUpdate, deneb.LightClientUpdate, deneb.SignedBeaconBlock, deneb_mev.BlindedBeaconBlock, deneb_mev.BlindedBeaconBlockBody, deneb_mev.BuilderBid, deneb_mev.SignedBlindedBeaconBlock, deneb_mev.SignedBuilderBid, phase0.BeaconBlock, phase0.BeaconBlockBody, phase0.BeaconState, phase0.SignedBeaconBlock, ) # TODO # Tuples are widely used in the responses of the REST server # If we switch to concrete types there, it would be possible # to remove this overly generic definition. template writeValue*(w: JsonWriter[RestJson], value: tuple) = writeRecordValue(w, value) ## The RestJson format implements JSON serialization in the way specified ## by the Beacon API: ## ## https://ethereum.github.io/beacon-APIs/ ## ## In this format, we must always set `allowUnknownFields = true` in the ## decode calls in order to conform the following spec: ## ## All JSON responses return the requested data under a data key in the top ## level of their response. Additional metadata may or may not be present ## in other keys at the top level of the response, dependent on the endpoint. ## The rules that require an increase in version number are as follows: ## ## - no field that is listed in an endpoint shall be removed without an increase ## in the version number ## ## - no field that is listed in an endpoint shall be altered in terms of format ## (e.g. from a string to an array) without an increase in the version number ## ## Note that it is possible for a field to be added to an endpoint's data or ## metadata without an increase in the version number. ## ## TODO nim-json-serializations should allow setting up this policy per format ## ## This also means that when new fields are introduced to the object definitions ## below, one must use the `Option[T]` type. const DecimalSet = {'0' .. '9'} # Base10 (decimal) set of chars ValidatorKeySize = RawPubKeySize * 2 # Size of `ValidatorPubKey` hexadecimal value (without 0x) ValidatorSigSize = RawSigSize * 2 # Size of `ValidatorSig` hexadecimal value (without 0x) RootHashSize = sizeof(Eth2Digest) * 2 # Size of `xxx_root` hexadecimal value (without 0x) ApplicationJsonMediaType* = MediaType.init("application/json") TextPlainMediaType* = MediaType.init("text/plain") OctetStreamMediaType* = MediaType.init("application/octet-stream") UrlEncodedMediaType* = MediaType.init("application/x-www-form-urlencoded") UnableDecodeVersionError = "Unable to decode version" UnableDecodeError = "Unable to decode data" UnexpectedDecodeError = "Unexpected decoding error" type EncodeTypes* = AttesterSlashing | BlobSidecarInfoObject | DeleteKeystoresBody | EmptyBody | ImportDistributedKeystoresBody | ImportRemoteKeystoresBody | KeystoresAndSlashingProtection | PrepareBeaconProposer | ProposerSlashing | SetFeeRecipientRequest | SetGasLimitRequest | bellatrix_mev.SignedBlindedBeaconBlock | capella_mev.SignedBlindedBeaconBlock | deneb_mev.SignedBlindedBeaconBlock | SignedValidatorRegistrationV1 | SignedVoluntaryExit | Web3SignerRequest | RestNimbusTimestamp1 | SetGraffitiRequest EncodeOctetTypes* = altair.SignedBeaconBlock | bellatrix.SignedBeaconBlock | capella.SignedBeaconBlock | phase0.SignedBeaconBlock | DenebSignedBlockContents | ForkedMaybeBlindedBeaconBlock EncodeArrays* = seq[Attestation] | seq[PrepareBeaconProposer] | seq[RemoteKeystoreInfo] | seq[RestCommitteeSubscription] | seq[RestSignedContributionAndProof] | seq[RestSyncCommitteeMessage] | seq[RestSyncCommitteeSubscription] | seq[SignedAggregateAndProof] | seq[SignedValidatorRegistrationV1] | seq[ValidatorIndex] | seq[RestBeaconCommitteeSelection] | seq[RestSyncCommitteeSelection] DecodeTypes* = DataEnclosedObject | DataMetaEnclosedObject | DataRootEnclosedObject | DataOptimisticObject | DataVersionEnclosedObject | DataOptimisticAndFinalizedObject | GetBlockV2Response | GetDistributedKeystoresResponse | GetKeystoresResponse | GetRemoteKeystoresResponse | GetStateForkResponse | GetStateV2Response | KeymanagerGenericError | KeystoresAndSlashingProtection | ListFeeRecipientResponse | PrepareBeaconProposer | RestIndexedErrorMessage | RestErrorMessage | RestValidator | Web3SignerErrorResponse | Web3SignerKeysResponse | Web3SignerSignatureResponse | Web3SignerStatusResponse | GetStateRootResponse | GetBlockRootResponse | SomeForkedLightClientObject | seq[SomeForkedLightClientObject] | RestNimbusTimestamp1 | RestNimbusTimestamp2 | GetGraffitiResponse DecodeConsensysTypes* = ProduceBlockResponseV2 | ProduceBlindedBlockResponse RestVersioned*[T] = object data*: T jsonVersion*: ConsensusFork sszContext*: ForkDigest RestBlockTypes* = phase0.BeaconBlock | altair.BeaconBlock | bellatrix.BeaconBlock | capella.BeaconBlock | deneb.BlockContents | capella_mev.BlindedBeaconBlock | deneb_mev.BlindedBeaconBlock func readStrictHexChar(c: char, radix: static[uint8]): Result[int8, cstring] = ## Converts an hex char to an int const lowerLastChar = chr(ord('a') + radix - 11'u8) capitalLastChar = chr(ord('A') + radix - 11'u8) case c of '0' .. '9': ok(int8 ord(c) - ord('0')) of 'a' .. lowerLastChar: ok(int8 ord(c) - ord('a') + 10) of 'A' .. capitalLastChar: ok(int8 ord(c) - ord('A') + 10) else: err("Invalid hexadecimal character encountered!") func readStrictDecChar(c: char, radix: static[uint8]): Result[int8, cstring] = const lastChar = char(ord('0') + radix - 1'u8) case c of '0' .. lastChar: ok(int8 ord(c) - ord('0')) else: err("Invalid decimal character encountered!") func skipPrefixes(str: string, radix: range[2..16]): Result[int, cstring] = ## Returns the index of the first meaningful char in `hexStr` by skipping ## "0x" prefix if len(str) < 2: return ok(0) return if str[0] == '0': if str[1] in {'x', 'X'}: if radix != 16: return err("Parsing mismatch, 0x prefix is only valid for a " & "hexadecimal number (base 16)") ok(2) elif str[1] in {'o', 'O'}: if radix != 8: return err("Parsing mismatch, 0o prefix is only valid for an " & "octal number (base 8)") ok(2) elif str[1] in {'b', 'B'}: if radix == 2: ok(2) elif radix == 16: # allow something like "0bcdef12345" which is a valid hex ok(0) else: err("Parsing mismatch, 0b prefix is only valid for a binary number " & "(base 2), or hex number") else: ok(0) else: ok(0) func strictParse*[bits: static[int]](input: string, T: typedesc[StUint[bits]], radix: static[uint8] = 10 ): Result[T, cstring] {.raises: [].} = var res: T static: doAssert (radix >= 2) and (radix <= 16), "Only base from 2..16 are supported" const base = radix.uint8.stuint(bits) zero = 0.uint8.stuint(256) var currentIndex = block: let res = skipPrefixes(input, radix) if res.isErr(): return err(res.error) res.get() while currentIndex < len(input): let value = when radix <= 10: ? readStrictDecChar(input[currentIndex], radix) else: ? readStrictHexChar(input[currentIndex], radix) let mres = res * base if (res != zero) and (mres div base != res): return err("Overflow error") let ares = mres + value.stuint(bits) if ares < mres: return err("Overflow error") res = ares inc(currentIndex) ok(res) proc prepareJsonResponse*(t: typedesc[RestApiResponse], d: auto): seq[byte] = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("data", d) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default res proc prepareJsonStringResponse*[T: SomeForkedLightClientObject]( t: typedesc[RestApiResponse], d: RestVersioned[T]): string = let res = block: var default: string try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) withForkyObject(d.data): when lcDataFork > LightClientDataFork.None: writer.beginRecord() writer.writeField("version", d.jsonVersion.toString()) writer.writeField("data", forkyObject) writer.endRecord() stream.getOutput(string) except IOError: default res proc prepareJsonStringResponse*(t: typedesc[RestApiResponse], d: auto): string = let res = block: var default: string try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.writeValue(d) stream.getOutput(string) except IOError: default res proc jsonResponseWRoot*(t: typedesc[RestApiResponse], data: auto, dependent_root: Eth2Digest, execOpt: Opt[bool]): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("dependent_root", dependent_root) if execOpt.isSome(): writer.writeField("execution_optimistic", execOpt.get()) writer.writeField("data", data) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json") proc jsonResponse*(t: typedesc[RestApiResponse], data: auto): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("data", data) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json") proc jsonResponseBlock*(t: typedesc[RestApiResponse], data: ForkySignedBlindedBeaconBlock, consensusFork: ConsensusFork, execOpt: Opt[bool], finalized: bool): RestApiResponse = let headers = [("eth-consensus-version", consensusFork.toString())] res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("version", consensusFork.toString()) if execOpt.isSome(): writer.writeField("execution_optimistic", execOpt.get()) writer.writeField("finalized", finalized) writer.writeField("data", data) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json", headers = headers) proc jsonResponseBlock*(t: typedesc[RestApiResponse], data: ForkedSignedBeaconBlock, execOpt: Opt[bool], finalized: bool): RestApiResponse = let headers = [("eth-consensus-version", data.kind.toString())] res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("version", data.kind.toString()) if execOpt.isSome(): writer.writeField("execution_optimistic", execOpt.get()) writer.writeField("finalized", finalized) withBlck(data): writer.writeField("data", forkyBlck) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json", headers = headers) proc jsonResponseState*(t: typedesc[RestApiResponse], data: ForkedHashedBeaconState, execOpt: Opt[bool]): RestApiResponse = let headers = [("eth-consensus-version", data.kind.toString())] res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("version", data.kind.toString()) if execOpt.isSome(): writer.writeField("execution_optimistic", execOpt.get()) withState(data): writer.writeField("data", forkyState.data) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json", headers = headers) proc jsonResponseWOpt*(t: typedesc[RestApiResponse], data: auto, execOpt: Opt[bool]): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() if execOpt.isSome(): writer.writeField("execution_optimistic", execOpt.get()) writer.writeField("data", data) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json") proc jsonResponseFinalized*(t: typedesc[RestApiResponse], data: auto, exec: Opt[bool], finalized: bool): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() if exec.isSome(): writer.writeField("execution_optimistic", exec.get()) writer.writeField("finalized", finalized) writer.writeField("data", data) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json") proc jsonResponseWVersion*(t: typedesc[RestApiResponse], data: auto, version: ConsensusFork): RestApiResponse = let headers = [("eth-consensus-version", version.toString())] res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("version", version.toString()) writer.writeField("data", data) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json", headers = headers) proc jsonResponseVersioned*[T: SomeForkedLightClientObject]( t: typedesc[RestApiResponse], entries: openArray[RestVersioned[T]]): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) for e in writer.stepwiseArrayCreation(entries): withForkyObject(e.data): when lcDataFork > LightClientDataFork.None: writer.beginRecord() writer.writeField("version", e.jsonVersion.toString()) writer.writeField("data", forkyObject) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json") proc jsonResponsePlain*(t: typedesc[RestApiResponse], data: auto): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.writeValue(data) stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json") proc jsonResponsePlain*(t: typedesc[RestApiResponse], data: auto, headers: HttpTable): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.writeValue(data) stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json", headers = headers) proc jsonResponseWMeta*(t: typedesc[RestApiResponse], data: auto, meta: auto): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("data", data) writer.writeField("meta", meta) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/json") proc jsonMsgResponse*(t: typedesc[RestApiResponse], msg: string = ""): RestApiResponse = let data = block: var default: seq[byte] try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("code", 200) writer.writeField("message", msg) writer.endRecord() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(data, Http200, "application/json") proc jsonError*(t: typedesc[RestApiResponse], status: HttpCode = Http200, msg: string = ""): RestApiResponse = let data = block: var default: string try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("code", int(status.toInt())) writer.writeField("message", msg) writer.endRecord() stream.getOutput(string) except IOError: default RestApiResponse.error(status, data, "application/json") proc jsonError*(t: typedesc[RestApiResponse], status: HttpCode = Http200, msg: string = "", stacktrace: string): RestApiResponse = let data = block: var default: string try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("code", int(status.toInt())) writer.writeField("message", msg) if len(stacktrace) > 0: writer.writeField("stacktraces", [stacktrace]) writer.endRecord() stream.getOutput(string) except IOError: default RestApiResponse.error(status, data, "application/json") proc jsonError*(t: typedesc[RestApiResponse], status: HttpCode = Http200, msg: string = "", stacktraces: openArray[string]): RestApiResponse = let data = block: var default: string try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("code", int(status.toInt())) writer.writeField("message", msg) writer.writeField("stacktraces", stacktraces) writer.endRecord() stream.getOutput(string) except IOError: default RestApiResponse.error(status, data, "application/json") proc jsonError*(t: typedesc[RestApiResponse], rmsg: RestErrorMessage): RestApiResponse = let data = block: var default: string try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("code", rmsg.code) writer.writeField("message", rmsg.message) if rmsg.stacktraces.isSome(): writer.writeField("stacktraces", rmsg.stacktraces) writer.endRecord() stream.getOutput(string) except IOError: default RestApiResponse.error(rmsg.code.toHttpCode().get(), data, "application/json") proc jsonErrorList*(t: typedesc[RestApiResponse], status: HttpCode = Http200, msg: string = "", failures: auto): RestApiResponse = let data = block: var default: string try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.beginRecord() writer.writeField("code", int(status.toInt())) writer.writeField("message", msg) writer.writeField("failures", failures) writer.endRecord() stream.getOutput(string) except IOError: default RestApiResponse.error(status, data, "application/json") proc sszResponseVersioned*[T: SomeForkedLightClientObject]( t: typedesc[RestApiResponse], entries: openArray[RestVersioned[T]]): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() for e in entries: withForkyUpdate(e.data): when lcDataFork > LightClientDataFork.None: var cursor = stream.delayFixedSizeWrite(sizeof(uint64)) let initPos = stream.pos stream.write e.sszContext.data var writer = SszWriter.init(stream) writer.writeValue forkyUpdate cursor.finalWrite (stream.pos - initPos).uint64.toBytesLE() stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/octet-stream") proc sszResponsePlain*(t: typedesc[RestApiResponse], res: seq[byte], headers: openArray[RestKeyValueTuple] = [] ): RestApiResponse = RestApiResponse.response(res, Http200, "application/octet-stream", headers = headers) proc sszResponse*(t: typedesc[RestApiResponse], data: auto, headers: openArray[RestKeyValueTuple] = [] ): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = SszWriter.init(stream) writer.writeValue(data) stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/octet-stream", headers = headers) proc sszResponse*(t: typedesc[RestApiResponse], data: auto, headers: HttpTable): RestApiResponse = let res = block: var default: seq[byte] try: var stream = memoryOutput() var writer = SszWriter.init(stream) writer.writeValue(data) stream.getOutput(seq[byte]) except IOError: default RestApiResponse.response(res, Http200, "application/octet-stream", headers = headers) template hexOriginal(data: openArray[byte]): string = to0xHex(data) proc decodeJsonString*[T](t: typedesc[T], data: JsonString): Result[T, cstring] = try: ok(RestJson.decode(string(data), T, requireAllFields = true, allowUnknownFields = true)) except SerializationError: err("Unable to deserialize data") ## uint64 proc writeValue*( w: var JsonWriter[RestJson], value: uint64) {.raises: [IOError].} = writeValue(w, Base10.toString(value)) proc readValue*(reader: var JsonReader[RestJson], value: var uint64) {. raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) let res = Base10.decode(uint64, svalue) if res.isOk(): value = res.get() else: reader.raiseUnexpectedValue($res.error() & ": " & svalue) ## uint8 proc writeValue*( w: var JsonWriter[RestJson], value: uint8) {.raises: [IOError].} = writeValue(w, Base10.toString(value)) proc readValue*(reader: var JsonReader[RestJson], value: var uint8) {. raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) let res = Base10.decode(uint8, svalue) if res.isOk(): value = res.get() else: reader.raiseUnexpectedValue($res.error() & ": " & svalue) ## RestNumeric proc writeValue*(w: var JsonWriter[RestJson], value: RestNumeric) {.raises: [IOError].} = writeValue(w, int(value)) proc readValue*(reader: var JsonReader[RestJson], value: var RestNumeric) {. raises: [IOError, SerializationError].} = value = RestNumeric(reader.readValue(int)) ## JustificationBits proc writeValue*( w: var JsonWriter[RestJson], value: JustificationBits ) {.raises: [IOError].} = w.writeValue hexOriginal([uint8(value)]) proc readValue*(reader: var JsonReader[RestJson], value: var JustificationBits) {. raises: [IOError, SerializationError].} = let hex = reader.readValue(string) try: value = JustificationBits(hexToByteArray(hex, 1)[0]) except ValueError: raiseUnexpectedValue(reader, "The `justification_bits` value must be a hex string") ## UInt256 proc writeValue*( w: var JsonWriter[RestJson], value: UInt256) {.raises: [IOError].} = writeValue(w, toString(value)) proc readValue*(reader: var JsonReader[RestJson], value: var UInt256) {. raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) try: value = parse(svalue, UInt256, 10) except ValueError: raiseUnexpectedValue(reader, "UInt256 value should be a valid decimal string") ## Slot proc writeValue*( writer: var JsonWriter[RestJson], value: Slot) {.raises: [IOError].} = writeValue(writer, Base10.toString(uint64(value))) proc readValue*(reader: var JsonReader[RestJson], value: var Slot) {. raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) let res = Base10.decode(uint64, svalue) if res.isOk(): value = Slot(res.get()) else: reader.raiseUnexpectedValue($res.error()) ## Epoch proc writeValue*( writer: var JsonWriter[RestJson], value: Epoch) {.raises: [IOError].} = writeValue(writer, Base10.toString(uint64(value))) proc readValue*(reader: var JsonReader[RestJson], value: var Epoch) {. raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) let res = Base10.decode(uint64, svalue) if res.isOk(): value = Epoch(res.get()) else: reader.raiseUnexpectedValue($res.error()) ## EpochParticipationFlags proc writeValue*( writer: var JsonWriter[RestJson], epochFlags: EpochParticipationFlags ) {.raises: [IOError].} = for e in writer.stepwiseArrayCreation(epochFlags.asList): writer.writeValue $e proc readValue*(reader: var JsonReader[RestJson], epochFlags: var EpochParticipationFlags) {.raises: [SerializationError, IOError].} = for e in reader.readArray(string): let parsed = try: parseBiggestUInt(e) except ValueError: reader.raiseUnexpectedValue( "A string-encoded 8-bit usigned integer value expected") if parsed > uint8.high: reader.raiseUnexpectedValue( "The usigned integer value should fit in 8 bits") if not epochFlags.asList.add(uint8(parsed)): reader.raiseUnexpectedValue( "The participation flags list size exceeds limit") ## ValidatorIndex proc writeValue*( writer: var JsonWriter[RestJson], value: ValidatorIndex ) {.raises: [IOError].} = writeValue(writer, Base10.toString(uint64(value))) proc readValue*(reader: var JsonReader[RestJson], value: var ValidatorIndex) {.raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) let res = Base10.decode(uint64, svalue) if res.isOk(): let v = res.get() if v < VALIDATOR_REGISTRY_LIMIT: value = ValidatorIndex(v) else: reader.raiseUnexpectedValue( "Validator index is bigger then VALIDATOR_REGISTRY_LIMIT") else: reader.raiseUnexpectedValue($res.error()) ## IndexInSyncCommittee proc writeValue*( writer: var JsonWriter[RestJson], value: IndexInSyncCommittee ) {.raises: [IOError].} = writeValue(writer, Base10.toString(distinctBase(value))) proc readValue*(reader: var JsonReader[RestJson], value: var IndexInSyncCommittee) {.raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) let res = Base10.decode(uint64, svalue) if res.isOk(): let v = res.get() if v < SYNC_COMMITTEE_SIZE: value = IndexInSyncCommittee(v) else: reader.raiseUnexpectedValue( "Index in committee is bigger than SYNC_COMMITTEE_SIZE") else: reader.raiseUnexpectedValue($res.error()) ## RestValidatorIndex proc writeValue*( writer: var JsonWriter[RestJson], value: RestValidatorIndex ) {.raises: [IOError].} = writeValue(writer, Base10.toString(uint64(value))) proc readValue*(reader: var JsonReader[RestJson], value: var RestValidatorIndex) {. raises: [IOError, SerializationError].} = let svalue = reader.readValue(string) let res = Base10.decode(uint64, svalue) if res.isOk(): let v = res.get() value = RestValidatorIndex(v) else: reader.raiseUnexpectedValue($res.error()) ## CommitteeIndex proc writeValue*( writer: var JsonWriter[RestJson], value: CommitteeIndex ) {.raises: [IOError].} = writeValue(writer, value.asUInt64) proc readValue*(reader: var JsonReader[RestJson], value: var CommitteeIndex) {. raises: [IOError, SerializationError].} = var v: uint64 reader.readValue(v) let res = CommitteeIndex.init(v) if res.isOk(): value = res.get() else: reader.raiseUnexpectedValue($res.error()) ## ValidatorSig proc writeValue*( writer: var JsonWriter[RestJson], value: ValidatorSig ) {.raises: [IOError].} = writeValue(writer, hexOriginal(toRaw(value))) proc readValue*(reader: var JsonReader[RestJson], value: var ValidatorSig) {. raises: [IOError, SerializationError].} = let hexValue = reader.readValue(string) let res = ValidatorSig.fromHex(hexValue) if res.isOk(): value = res.get() else: reader.raiseUnexpectedValue($res.error()) ## TrustedSig proc writeValue*( writer: var JsonWriter[RestJson], value: TrustedSig ) {.raises: [IOError].} = writeValue(writer, hexOriginal(toRaw(value))) proc readValue*(reader: var JsonReader[RestJson], value: var TrustedSig) {. raises: [IOError, SerializationError].} = let hexValue = reader.readValue(string) let res = ValidatorSig.fromHex(hexValue) if res.isOk(): value = cast[TrustedSig](res.get()) else: reader.raiseUnexpectedValue($res.error()) ## ValidatorPubKey proc writeValue*( writer: var JsonWriter[RestJson], value: ValidatorPubKey ) {.raises: [IOError].} = writeValue(writer, hexOriginal(toRaw(value))) proc readValue*(reader: var JsonReader[RestJson], value: var ValidatorPubKey) {. raises: [IOError, SerializationError].} = let hexValue = reader.readValue(string) let res = ValidatorPubKey.fromHex(hexValue) if res.isOk(): value = res.get() else: reader.raiseUnexpectedValue($res.error()) proc readValue*(reader: var JsonReader[RestJson], value: var HashedValidatorPubKey) {. raises: [IOError, SerializationError].} = var key: ValidatorPubKey readValue(reader, key) value = HashedValidatorPubKey.init(key) proc writeValue*( writer: var JsonWriter[RestJson], value: HashedValidatorPubKey) {.raises: [IOError].} = writeValue(writer, value.pubkey) ## BitSeq proc readValue*(reader: var JsonReader[RestJson], value: var BitSeq) {. raises: [IOError, SerializationError].} = try: value = BitSeq hexToSeqByte(reader.readValue(string)) except ValueError: raiseUnexpectedValue(reader, "A BitSeq value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: BitSeq) {.raises: [IOError].} = writeValue(writer, hexOriginal(value.bytes())) ## BitList proc readValue*(reader: var JsonReader[RestJson], value: var BitList) {. raises: [IOError, SerializationError].} = type T = type(value) value = T readValue(reader, BitSeq) proc writeValue*( writer: var JsonWriter[RestJson], value: BitList) {.raises: [IOError].} = writeValue(writer, BitSeq value) ## BitArray proc readValue*(reader: var JsonReader[RestJson], value: var BitArray) {. raises: [IOError, SerializationError].} = try: hexToByteArray(readValue(reader, string), value.bytes) except ValueError: raiseUnexpectedValue(reader, "A BitArray value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: BitArray) {.raises: [IOError].} = writeValue(writer, hexOriginal(value.bytes)) ## BlockHash proc readValue*(reader: var JsonReader[RestJson], value: var BlockHash) {. raises: [IOError, SerializationError].} = try: hexToByteArray(reader.readValue(string), distinctBase(value)) except ValueError: raiseUnexpectedValue(reader, "BlockHash value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: BlockHash) {.raises: [IOError].} = writeValue(writer, hexOriginal(distinctBase(value))) ## Eth2Digest proc readValue*(reader: var JsonReader[RestJson], value: var Eth2Digest) {. raises: [IOError, SerializationError].} = try: hexToByteArray(reader.readValue(string), value.data) except ValueError: raiseUnexpectedValue(reader, "Eth2Digest value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: Eth2Digest) {.raises: [IOError].} = writeValue(writer, hexOriginal(value.data)) ## BloomLogs proc readValue*(reader: var JsonReader[RestJson], value: var BloomLogs) {. raises: [IOError, SerializationError].} = try: hexToByteArray(reader.readValue(string), value.data) except ValueError: raiseUnexpectedValue(reader, "BloomLogs value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: BloomLogs) {.raises: [IOError].} = writeValue(writer, hexOriginal(value.data)) ## HashArray proc readValue*(reader: var JsonReader[RestJson], value: var HashArray) {. raises: [IOError, SerializationError].} = readValue(reader, value.data) proc writeValue*( writer: var JsonWriter[RestJson], value: HashArray) {.raises: [IOError].} = writeValue(writer, value.data) ## HashList proc readValue*(reader: var JsonReader[RestJson], value: var HashList) {. raises: [IOError, SerializationError].} = readValue(reader, value.data) value.resetCache() proc writeValue*( writer: var JsonWriter[RestJson], value: HashList) {.raises: [IOError].} = writeValue(writer, value.data) ## Eth1Address proc readValue*(reader: var JsonReader[RestJson], value: var Eth1Address) {. raises: [IOError, SerializationError].} = try: hexToByteArray(reader.readValue(string), distinctBase(value)) except ValueError: raiseUnexpectedValue(reader, "Eth1Address value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: Eth1Address ) {.raises: [IOError].} = writeValue(writer, hexOriginal(distinctBase(value))) ## Blob ## https://github.com/ethereum/beacon-APIs/blob/v2.4.2/types/primitive.yaml#L129-L133 proc readValue*(reader: var JsonReader[RestJson], value: var Blob) {. raises: [IOError, SerializationError].} = try: hexToByteArray(reader.readValue(string), distinctBase(value)) except ValueError: raiseUnexpectedValue(reader, "Blob value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: Blob ) {.raises: [IOError].} = writeValue(writer, hexOriginal(distinctBase(value))) ## KzgCommitment and KzgProof; both are the same type, but this makes it ## explicit. ## https://github.com/ethereum/beacon-APIs/blob/v2.4.2/types/primitive.yaml#L135-L146 proc readValue*(reader: var JsonReader[RestJson], value: var (KzgCommitment|KzgProof)) {. raises: [IOError, SerializationError].} = try: hexToByteArray(reader.readValue(string), distinctBase(value)) except ValueError: raiseUnexpectedValue(reader, "KzgCommitment value should be a valid hex string") proc writeValue*( writer: var JsonWriter[RestJson], value: KzgCommitment | KzgProof ) {.raises: [IOError].} = writeValue(writer, hexOriginal(distinctBase(value))) ## GraffitiBytes proc writeValue*( writer: var JsonWriter[RestJson], value: GraffitiBytes ) {.raises: [IOError].} = writeValue(writer, hexOriginal(distinctBase(value))) proc readValue*(reader: var JsonReader[RestJson], T: type GraffitiBytes): T {.raises: [IOError, SerializationError].} = try: init(GraffitiBytes, reader.readValue(string)) except ValueError as err: reader.raiseUnexpectedValue err.msg ## Version | ForkDigest | DomainType | GraffitiBytes | RestWithdrawalPrefix proc readValue*( reader: var JsonReader[RestJson], value: var (Version | ForkDigest | DomainType | GraffitiBytes | RestWithdrawalPrefix)) {. raises: [IOError, SerializationError].} = try: hexToByteArray(reader.readValue(string), distinctBase(value)) except ValueError: raiseUnexpectedValue( reader, "Expected a valid hex string with " & $value.len() & " bytes") template unrecognizedFieldWarning = # TODO: There should be a different notification mechanism for informing the # caller of a deserialization routine for unexpected fields. # The chonicles import in this module should be removed. trace "JSON field not recognized by the current version of Nimbus. Consider upgrading", fieldName, typeName = typetraits.name(typeof value) template unrecognizedFieldIgnore = discard readValue(reader, JsonString) ## ForkedBeaconBlock template prepareForkedBlockReading(blockType: typedesc, reader: var JsonReader[RestJson], version: var Opt[ConsensusFork], data: var Opt[JsonString], blinded: var Opt[bool], payloadValue: var Opt[Uint256], blockValue: var Opt[Uint256]) = for fieldName {.inject.} in readObjectFields(reader): case fieldName of "version": if version.isSome(): reader.raiseUnexpectedField("Multiple version fields found", blockType.name) let vres = reader.readValue(string).toLowerAscii() version = ConsensusFork.init(vres) if version.isNone(): reader.raiseUnexpectedValue("Incorrect version field value") of "data": when (blockType is ProduceBlockResponseV2) or (blockType is ForkedBlindedBeaconBlock) or (blockType is ProduceBlockResponseV3): if data.isSome(): reader.raiseUnexpectedField( "Multiple '" & fieldName & "' fields found", blockType.name) data = Opt.some(reader.readValue(JsonString)) else: unrecognizedFieldWarning() of "block_header", "block": when (blockType is Web3SignerForkedBeaconBlock): if data.isSome(): reader.raiseUnexpectedField( "Multiple '" & fieldName & "' fields found", blockType.name) data = Opt.some(reader.readValue(JsonString)) else: unrecognizedFieldWarning() of "execution_payload_blinded": when (blockType is ProduceBlockResponseV3): if blinded.isSome(): reader.raiseUnexpectedField( "Multiple `execution_payload_blinded` fields found", blockType.name) blinded = Opt.some(reader.readValue(bool)) else: unrecognizedFieldWarning() of "execution_payload_value": when (blockType is ProduceBlockResponseV3): if payloadValue.isSome(): reader.raiseUnexpectedField( "Multiple `execution_payload_value` fields found", blockType.name) payloadValue = Opt.some(reader.readValue(Uint256)) else: unrecognizedFieldWarning() of "consensus_block_value": when (blockType is ProduceBlockResponseV3): if blockValue.isSome(): reader.raiseUnexpectedField( "Multiple `consensus_block_value` fields found", blockType.name) blockValue = Opt.some(reader.readValue(Uint256)) else: unrecognizedFieldWarning() else: unrecognizedFieldWarning() if version.isNone(): reader.raiseUnexpectedValue("Field `version` is missing") if data.isNone(): reader.raiseUnexpectedValue("Field `data` is missing") proc readValue*[BlockType: ProduceBlockResponseV2]( reader: var JsonReader[RestJson], value: var BlockType) {.raises: [IOError, SerializationError].} = var version: Opt[ConsensusFork] data: Opt[JsonString] blinded: Opt[bool] payloadValue: Opt[Uint256] blockValue: Opt[Uint256] prepareForkedBlockReading(BlockType, reader, version, data, blinded, payloadValue, blockValue) case version.get(): of ConsensusFork.Phase0: let res = try: RestJson.decode(string(data.get()), phase0.BeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect phase0 block format") value = ProduceBlockResponseV2(kind: ConsensusFork.Phase0, phase0Data: res) of ConsensusFork.Altair: let res = try: RestJson.decode(string(data.get()), altair.BeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect altair block format") value = ProduceBlockResponseV2(kind: ConsensusFork.Altair, altairData: res) of ConsensusFork.Bellatrix: let res = try: RestJson.decode(string(data.get()), bellatrix.BeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect bellatrix block format") value = ProduceBlockResponseV2(kind: ConsensusFork.Bellatrix, bellatrixData: res) of ConsensusFork.Capella: let res = try: RestJson.decode(string(data.get()), capella.BeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect capella block format") value = ProduceBlockResponseV2(kind: ConsensusFork.Capella, capellaData: res) of ConsensusFork.Deneb: let res = try: RestJson.decode(string(data.get()), deneb.BlockContents, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect deneb block format") value = ProduceBlockResponseV2(kind: ConsensusFork.Deneb, denebData: res) proc readValue*[BlockType: ForkedBlindedBeaconBlock]( reader: var JsonReader[RestJson], value: var BlockType ) {.raises: [IOError, SerializationError].} = var version: Opt[ConsensusFork] data: Opt[JsonString] blinded: Opt[bool] payloadValue: Opt[Uint256] blockValue: Opt[Uint256] prepareForkedBlockReading(BlockType, reader, version, data, blinded, payloadValue, blockValue) case version.get(): of ConsensusFork.Phase0: let res = try: RestJson.decode(string(data.get()), phase0.BeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: reader.raiseUnexpectedValue("Incorrect phase0 block format, [" & exc.formatMsg("BlindedBlock") & "]") value = ForkedBlindedBeaconBlock(kind: ConsensusFork.Phase0, phase0Data: res) of ConsensusFork.Altair: let res = try: RestJson.decode(string(data.get()), altair.BeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: reader.raiseUnexpectedValue("Incorrect altair block format, [" & exc.formatMsg("BlindedBlock") & "]") value = ForkedBlindedBeaconBlock(kind: ConsensusFork.Altair, altairData: res) of ConsensusFork.Bellatrix: reader.raiseUnexpectedValue("Bellatrix blinded block format unsupported") of ConsensusFork.Capella: let res = try: RestJson.decode(string(data.get()), capella_mev.BlindedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: reader.raiseUnexpectedValue("Incorrect capella block format, [" & exc.formatMsg("BlindedBlock") & "]") value = ForkedBlindedBeaconBlock(kind: ConsensusFork.Capella, capellaData: res) of ConsensusFork.Deneb: let res = try: RestJson.decode(string(data.get()), deneb_mev.BlindedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: reader.raiseUnexpectedValue("Incorrect deneb block format, [" & exc.formatMsg("BlindedBlock") & "]") value = ForkedBlindedBeaconBlock(kind: ConsensusFork.Deneb, denebData: res) proc readValue*[BlockType: Web3SignerForkedBeaconBlock]( reader: var JsonReader[RestJson], value: var BlockType) {.raises: [IOError, SerializationError].} = var version: Opt[ConsensusFork] data: Opt[JsonString] blinded: Opt[bool] payloadValue: Opt[Uint256] blockValue: Opt[Uint256] prepareForkedBlockReading(BlockType, reader, version, data, blinded, payloadValue, blockValue) if version.get() <= ConsensusFork.Altair: reader.raiseUnexpectedValue( "Web3Signer implementation supports Bellatrix and newer") let res = try: RestJson.decode(string(data.get()), BeaconBlockHeader, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect block header format") value = Web3SignerForkedBeaconBlock(kind: version.get(), data: res) proc writeValue*[BlockType: Web3SignerForkedBeaconBlock]( writer: var JsonWriter[RestJson], value: BlockType) {.raises: [IOError].} = # https://consensys.github.io/web3signer/web3signer-eth2.html#tag/Signing/operation/ETH2_SIGN # https://github.com/ConsenSys/web3signer/blob/d51337e96ba5ce410222943556bed7c4856b8e57/core/src/main/java/tech/pegasys/web3signer/core/service/http/handlers/signing/eth2/json/BlockRequestDeserializer.java#L42-L58 writer.beginRecord() writer.writeField("version", value.kind.toString.toUpperAscii) writer.writeField("block_header", value.data) writer.endRecord() proc writeValue*[BlockType: ForkedBeaconBlock]( writer: var JsonWriter[RestJson], value: BlockType) {.raises: [IOError].} = template forkIdentifier(id: string): auto = when BlockType is ForkedBeaconBlock: id else: (static toUpperAscii id) writer.beginRecord() case value.kind of ConsensusFork.Phase0: writer.writeField("version", forkIdentifier "phase0") writer.writeField("data", value.phase0Data) of ConsensusFork.Altair: writer.writeField("version", forkIdentifier "altair") writer.writeField("data", value.altairData) of ConsensusFork.Bellatrix: writer.writeField("version", forkIdentifier "bellatrix") writer.writeField("data", value.bellatrixData) of ConsensusFork.Capella: writer.writeField("version", forkIdentifier "capella") writer.writeField("data", value.capellaData) of ConsensusFork.Deneb: writer.writeField("version", forkIdentifier "deneb") writer.writeField("data", value.denebData) writer.endRecord() ## RestPublishedBeaconBlockBody proc readValue*(reader: var JsonReader[RestJson], value: var RestPublishedBeaconBlockBody) {. raises: [IOError, SerializationError].} = var randao_reveal: Opt[ValidatorSig] eth1_data: Opt[Eth1Data] graffiti: Opt[GraffitiBytes] proposer_slashings: Opt[List[ProposerSlashing, Limit MAX_PROPOSER_SLASHINGS]] attester_slashings: Opt[List[AttesterSlashing, Limit MAX_ATTESTER_SLASHINGS]] attestations: Opt[List[Attestation, Limit MAX_ATTESTATIONS]] deposits: Opt[List[Deposit, Limit MAX_DEPOSITS]] voluntary_exits: Opt[List[SignedVoluntaryExit, Limit MAX_VOLUNTARY_EXITS]] sync_aggregate: Opt[SyncAggregate] execution_payload: Opt[RestExecutionPayload] bls_to_execution_changes: Opt[SignedBLSToExecutionChangeList] blob_kzg_commitments: Opt[KzgCommitments] for fieldName in readObjectFields(reader): case fieldName of "randao_reveal": if randao_reveal.isSome(): reader.raiseUnexpectedField("Multiple `randao_reveal` fields found", "RestPublishedBeaconBlockBody") randao_reveal = Opt.some(reader.readValue(ValidatorSig)) of "eth1_data": if eth1_data.isSome(): reader.raiseUnexpectedField("Multiple `eth1_data` fields found", "RestPublishedBeaconBlockBody") eth1_data = Opt.some(reader.readValue(Eth1Data)) of "graffiti": if graffiti.isSome(): reader.raiseUnexpectedField("Multiple `graffiti` fields found", "RestPublishedBeaconBlockBody") graffiti = Opt.some(reader.readValue(GraffitiBytes)) of "proposer_slashings": if proposer_slashings.isSome(): reader.raiseUnexpectedField( "Multiple `proposer_slashings` fields found", "RestPublishedBeaconBlockBody") proposer_slashings = Opt.some( reader.readValue(List[ProposerSlashing, Limit MAX_PROPOSER_SLASHINGS])) of "attester_slashings": if attester_slashings.isSome(): reader.raiseUnexpectedField( "Multiple `attester_slashings` fields found", "RestPublishedBeaconBlockBody") attester_slashings = Opt.some( reader.readValue(List[AttesterSlashing, Limit MAX_ATTESTER_SLASHINGS])) of "attestations": if attestations.isSome(): reader.raiseUnexpectedField("Multiple `attestations` fields found", "RestPublishedBeaconBlockBody") attestations = Opt.some( reader.readValue(List[Attestation, Limit MAX_ATTESTATIONS])) of "deposits": if deposits.isSome(): reader.raiseUnexpectedField("Multiple `deposits` fields found", "RestPublishedBeaconBlockBody") deposits = Opt.some(reader.readValue(List[Deposit, Limit MAX_DEPOSITS])) of "voluntary_exits": if voluntary_exits.isSome(): reader.raiseUnexpectedField("Multiple `voluntary_exits` fields found", "RestPublishedBeaconBlockBody") voluntary_exits = Opt.some( reader.readValue(List[SignedVoluntaryExit, Limit MAX_VOLUNTARY_EXITS])) of "sync_aggregate": if sync_aggregate.isSome(): reader.raiseUnexpectedField("Multiple `sync_aggregate` fields found", "RestPublishedBeaconBlockBody") sync_aggregate = Opt.some(reader.readValue(SyncAggregate)) of "execution_payload": if execution_payload.isSome(): reader.raiseUnexpectedField("Multiple `execution_payload` fields found", "RestPublishedBeaconBlockBody") execution_payload = Opt.some(reader.readValue(RestExecutionPayload)) of "bls_to_execution_changes": if bls_to_execution_changes.isSome(): reader.raiseUnexpectedField("Multiple `bls_to_execution_changes` fields found", "RestPublishedBeaconBlockBody") bls_to_execution_changes = Opt.some( reader.readValue(SignedBLSToExecutionChangeList)) of "blob_kzg_commitments": if blob_kzg_commitments.isSome(): reader.raiseUnexpectedField("Multiple `blob_kzg_commitments` fields found", "RestPublishedBeaconBlockBody") blob_kzg_commitments = Opt.some(reader.readValue(KzgCommitments)) else: unrecognizedFieldWarning() if randao_reveal.isNone(): reader.raiseUnexpectedValue("Field `randao_reveal` is missing") if eth1_data.isNone(): reader.raiseUnexpectedValue("Field `eth1_data` is missing") if graffiti.isNone(): reader.raiseUnexpectedValue("Field `graffiti` is missing") if proposer_slashings.isNone(): reader.raiseUnexpectedValue("Field `proposer_slashings` is missing") if attester_slashings.isNone(): reader.raiseUnexpectedValue("Field `attester_slashings` is missing") if attestations.isNone(): reader.raiseUnexpectedValue("Field `attestations` is missing") if deposits.isNone(): reader.raiseUnexpectedValue("Field `deposits` is missing") if voluntary_exits.isNone(): reader.raiseUnexpectedValue("Field `voluntary_exits` is missing") let bodyKind = if execution_payload.isSome() and execution_payload.get().blob_gas_used.isSome() and blob_kzg_commitments.isSome(): ConsensusFork.Deneb elif execution_payload.isSome() and execution_payload.get().withdrawals.isSome() and bls_to_execution_changes.isSome() and sync_aggregate.isSome(): ConsensusFork.Capella elif execution_payload.isSome() and sync_aggregate.isSome(): ConsensusFork.Bellatrix elif execution_payload.isNone() and sync_aggregate.isSome(): ConsensusFork.Altair else: ConsensusFork.Phase0 template ep_src: auto = execution_payload.get() template copy_ep_bellatrix(ep_dst: auto) = assign(ep_dst.parent_hash, ep_src.parent_hash) assign(ep_dst.fee_recipient, ep_src.fee_recipient) assign(ep_dst.state_root, ep_src.state_root) assign(ep_dst.receipts_root, ep_src.receipts_root) assign(ep_dst.logs_bloom, ep_src.logs_bloom) assign(ep_dst.prev_randao, ep_src.prev_randao) assign(ep_dst.block_number, ep_src.block_number) assign(ep_dst.gas_limit, ep_src.gas_limit) assign(ep_dst.gas_used, ep_src.gas_used) assign(ep_dst.timestamp, ep_src.timestamp) assign(ep_dst.extra_data, ep_src.extra_data) assign(ep_dst.base_fee_per_gas, ep_src.base_fee_per_gas) assign(ep_dst.block_hash, ep_src.block_hash) assign(ep_dst.transactions, ep_src.transactions) case bodyKind of ConsensusFork.Phase0: value = RestPublishedBeaconBlockBody( kind: ConsensusFork.Phase0, phase0Body: phase0.BeaconBlockBody( randao_reveal: randao_reveal.get(), eth1_data: eth1_data.get(), graffiti: graffiti.get(), proposer_slashings: proposer_slashings.get(), attester_slashings: attester_slashings.get(), attestations: attestations.get(), deposits: deposits.get(), voluntary_exits: voluntary_exits.get() ) ) of ConsensusFork.Altair: value = RestPublishedBeaconBlockBody( kind: ConsensusFork.Altair, altairBody: altair.BeaconBlockBody( randao_reveal: randao_reveal.get(), eth1_data: eth1_data.get(), graffiti: graffiti.get(), proposer_slashings: proposer_slashings.get(), attester_slashings: attester_slashings.get(), attestations: attestations.get(), deposits: deposits.get(), voluntary_exits: voluntary_exits.get(), sync_aggregate: sync_aggregate.get() ) ) of ConsensusFork.Bellatrix: value = RestPublishedBeaconBlockBody( kind: ConsensusFork.Bellatrix, bellatrixBody: bellatrix.BeaconBlockBody( randao_reveal: randao_reveal.get(), eth1_data: eth1_data.get(), graffiti: graffiti.get(), proposer_slashings: proposer_slashings.get(), attester_slashings: attester_slashings.get(), attestations: attestations.get(), deposits: deposits.get(), voluntary_exits: voluntary_exits.get(), sync_aggregate: sync_aggregate.get(), ) ) copy_ep_bellatrix(value.bellatrixBody.execution_payload) of ConsensusFork.Capella: value = RestPublishedBeaconBlockBody( kind: ConsensusFork.Capella, capellaBody: capella.BeaconBlockBody( randao_reveal: randao_reveal.get(), eth1_data: eth1_data.get(), graffiti: graffiti.get(), proposer_slashings: proposer_slashings.get(), attester_slashings: attester_slashings.get(), attestations: attestations.get(), deposits: deposits.get(), voluntary_exits: voluntary_exits.get(), sync_aggregate: sync_aggregate.get(), bls_to_execution_changes: bls_to_execution_changes.get() ) ) copy_ep_bellatrix(value.capellaBody.execution_payload) assign( value.capellaBody.execution_payload.withdrawals, ep_src.withdrawals.get()) of ConsensusFork.Deneb: value = RestPublishedBeaconBlockBody( kind: ConsensusFork.Deneb, denebBody: deneb.BeaconBlockBody( randao_reveal: randao_reveal.get(), eth1_data: eth1_data.get(), graffiti: graffiti.get(), proposer_slashings: proposer_slashings.get(), attester_slashings: attester_slashings.get(), attestations: attestations.get(), deposits: deposits.get(), voluntary_exits: voluntary_exits.get(), sync_aggregate: sync_aggregate.get(), bls_to_execution_changes: bls_to_execution_changes.get(), blob_kzg_commitments: blob_kzg_commitments.get() ) ) copy_ep_bellatrix(value.denebBody.execution_payload) assign( value.denebBody.execution_payload.withdrawals, ep_src.withdrawals.get()) assign( value.denebBody.execution_payload.blob_gas_used, ep_src.blob_gas_used.get()) assign( value.denebBody.execution_payload.excess_blob_gas, ep_src.excess_blob_gas.get()) ## RestPublishedBeaconBlock proc readValue*(reader: var JsonReader[RestJson], value: var RestPublishedBeaconBlock) {. raises: [IOError, SerializationError].} = var slot: Opt[Slot] proposer_index: Opt[uint64] parent_root: Opt[Eth2Digest] state_root: Opt[Eth2Digest] blockBody: Opt[RestPublishedBeaconBlockBody] for fieldName in readObjectFields(reader): case fieldName of "slot": if slot.isSome(): reader.raiseUnexpectedField("Multiple `slot` fields found", "RestPublishedBeaconBlock") slot = Opt.some(reader.readValue(Slot)) of "proposer_index": if proposer_index.isSome(): reader.raiseUnexpectedField("Multiple `proposer_index` fields found", "RestPublishedBeaconBlock") proposer_index = Opt.some(reader.readValue(uint64)) of "parent_root": if parent_root.isSome(): reader.raiseUnexpectedField("Multiple `parent_root` fields found", "RestPublishedBeaconBlock") parent_root = Opt.some(reader.readValue(Eth2Digest)) of "state_root": if state_root.isSome(): reader.raiseUnexpectedField("Multiple `state_root` fields found", "RestPublishedBeaconBlock") state_root = Opt.some(reader.readValue(Eth2Digest)) of "body": if blockBody.isSome(): reader.raiseUnexpectedField("Multiple `body` fields found", "RestPublishedBeaconBlock") blockBody = Opt.some(reader.readValue(RestPublishedBeaconBlockBody)) else: unrecognizedFieldWarning() if slot.isNone(): reader.raiseUnexpectedValue("Field `slot` is missing") if proposer_index.isNone(): reader.raiseUnexpectedValue("Field `proposer_index` is missing") if parent_root.isNone(): reader.raiseUnexpectedValue("Field `parent_root` is missing") if state_root.isNone(): reader.raiseUnexpectedValue("Field `state_root` is missing") if blockBody.isNone(): reader.raiseUnexpectedValue("Field `body` is missing") let body = blockBody.get() value = RestPublishedBeaconBlock( case body.kind of ConsensusFork.Phase0: ForkedBeaconBlock.init( phase0.BeaconBlock( slot: slot.get(), proposer_index: proposer_index.get(), parent_root: parent_root.get(), state_root: state_root.get(), body: body.phase0Body ) ) of ConsensusFork.Altair: ForkedBeaconBlock.init( altair.BeaconBlock( slot: slot.get(), proposer_index: proposer_index.get(), parent_root: parent_root.get(), state_root: state_root.get(), body: body.altairBody ) ) of ConsensusFork.Bellatrix: ForkedBeaconBlock.init( bellatrix.BeaconBlock( slot: slot.get(), proposer_index: proposer_index.get(), parent_root: parent_root.get(), state_root: state_root.get(), body: body.bellatrixBody ) ) of ConsensusFork.Capella: ForkedBeaconBlock.init( capella.BeaconBlock( slot: slot.get(), proposer_index: proposer_index.get(), parent_root: parent_root.get(), state_root: state_root.get(), body: body.capellaBody ) ) of ConsensusFork.Deneb: ForkedBeaconBlock.init( deneb.BeaconBlock( slot: slot.get(), proposer_index: proposer_index.get(), parent_root: parent_root.get(), state_root: state_root.get(), body: body.denebBody ) ) ) ## RestPublishedSignedBeaconBlock proc readValue*(reader: var JsonReader[RestJson], value: var RestPublishedSignedBeaconBlock) {. raises: [IOError, SerializationError].} = var signature: Opt[ValidatorSig] var message: Opt[RestPublishedBeaconBlock] for fieldName in readObjectFields(reader): case fieldName of "message": if message.isSome(): reader.raiseUnexpectedField("Multiple `message` fields found", "RestPublishedSignedBeaconBlock") message = Opt.some(reader.readValue(RestPublishedBeaconBlock)) of "signature": if signature.isSome(): reader.raiseUnexpectedField("Multiple `signature` fields found", "RestPublishedSignedBeaconBlock") signature = Opt.some(reader.readValue(ValidatorSig)) else: unrecognizedFieldWarning() if signature.isNone(): reader.raiseUnexpectedValue("Field `signature` is missing") if message.isNone(): reader.raiseUnexpectedValue("Field `message` is missing") let blck = ForkedBeaconBlock(message.get()) value = RestPublishedSignedBeaconBlock( case blck.kind of ConsensusFork.Phase0: ForkedSignedBeaconBlock.init( phase0.SignedBeaconBlock( message: blck.phase0Data, signature: signature.get() ) ) of ConsensusFork.Altair: ForkedSignedBeaconBlock.init( altair.SignedBeaconBlock( message: blck.altairData, signature: signature.get() ) ) of ConsensusFork.Bellatrix: ForkedSignedBeaconBlock.init( bellatrix.SignedBeaconBlock( message: blck.bellatrixData, signature: signature.get() ) ) of ConsensusFork.Capella: ForkedSignedBeaconBlock.init( capella.SignedBeaconBlock( message: blck.capellaData, signature: signature.get() ) ) of ConsensusFork.Deneb: ForkedSignedBeaconBlock.init( deneb.SignedBeaconBlock( message: blck.denebData, signature: signature.get() ) ) ) proc readValue*(reader: var JsonReader[RestJson], value: var RestPublishedSignedBlockContents) {. raises: [IOError, SerializationError].} = var signature: Opt[ValidatorSig] var message: Opt[RestPublishedBeaconBlock] var signed_message: Opt[RestPublishedSignedBeaconBlock] var signed_block_data: Opt[JsonString] var kzg_proofs: Opt[deneb.KzgProofs] var blobs: Opt[deneb.Blobs] # Pre-Deneb, there were always the same two top-level fields # ('signature' and 'message'). For Deneb, there's a different set of # a top-level fields: 'signed_block' 'kzg_proofs', `blobs`. The # former is the same as the pre-Deneb object. for fieldName in readObjectFields(reader): case fieldName of "message": if message.isSome(): reader.raiseUnexpectedField("Multiple `message` fields found", "RestPublishedSignedBlockContents") message = Opt.some(reader.readValue(RestPublishedBeaconBlock)) of "signature": if signature.isSome(): reader.raiseUnexpectedField("Multiple `signature` fields found", "RestPublishedSignedBlockContents") signature = Opt.some(reader.readValue(ValidatorSig)) of "signed_block": if signed_block_data.isSome(): reader.raiseUnexpectedField("Multiple `signed_block` fields found", "RestPublishedSignedBlockContents") signed_block_data = Opt.some(reader.readValue(JsonString)) if message.isSome() or signature.isSome(): reader.raiseUnexpectedField( "Found `signed_block` field alongside message or signature fields", "RestPublishedSignedBlockContents") signed_message = try: Opt.some(RestJson.decode(string(signed_block_data.get()), RestPublishedSignedBeaconBlock, requireAllFields = true, allowUnknownFields = true)) except SerializationError: Opt.none(RestPublishedSignedBeaconBlock) if signed_message.isNone(): reader.raiseUnexpectedValue("Incorrect signed_block format") # Only needed to signal fork to the blck.kind case selection let blck = ForkedSignedBeaconBlock(signed_message.get()) message = Opt.some(RestPublishedBeaconBlock( case blck.kind of ConsensusFork.Phase0, ConsensusFork.Altair, ConsensusFork.Bellatrix, ConsensusFork.Capella: reader.raiseUnexpectedValue("Incorrect signed_block format") of ConsensusFork.Deneb: ForkedBeaconBlock.init(blck.denebData.message) )) of "kzg_proofs": if kzg_proofs.isSome(): reader.raiseUnexpectedField( "Multiple `kzg_proofs` fields found", "RestPublishedSignedBlockContents") if signature.isSome(): reader.raiseUnexpectedField( "Found `kzg_proofs` field alongside signature field", "RestPublishedSignedBlockContents") kzg_proofs = Opt.some(reader.readValue(deneb.KzgProofs)) of "blobs": if blobs.isSome(): reader.raiseUnexpectedField( "Multiple `blobs` fields found", "RestPublishedSignedBlockContents") if signature.isSome(): reader.raiseUnexpectedField( "Found `blobs` field alongside signature field", "RestPublishedSignedBlockContents") blobs = Opt.some(reader.readValue(deneb.Blobs)) else: unrecognizedFieldWarning() if signed_message.isNone(): # Pre-Deneb; conditions for when signed_message.isSome checked in case body if signature.isNone(): reader.raiseUnexpectedValue("Field `signature` is missing") if message.isNone(): reader.raiseUnexpectedValue("Field `message` is missing") let blck = ForkedBeaconBlock(message.get()) if blck.kind >= ConsensusFork.Deneb: if kzg_proofs.isNone(): reader.raiseUnexpectedValue("Field `kzg_proofs` is missing") if blobs.isNone(): reader.raiseUnexpectedValue("Field `blobs` is missing") else: if kzg_proofs.isSome(): reader.raiseUnexpectedValue("Field `kzg_proofs` found but unsupported") if blobs.isSome(): reader.raiseUnexpectedValue("Field `blobs` found but unsupported") case blck.kind of ConsensusFork.Phase0: value = RestPublishedSignedBlockContents( kind: ConsensusFork.Phase0, phase0Data: phase0.SignedBeaconBlock( message: blck.phase0Data, signature: signature.get() ) ) of ConsensusFork.Altair: value = RestPublishedSignedBlockContents( kind: ConsensusFork.Altair, altairData: altair.SignedBeaconBlock( message: blck.altairData, signature: signature.get() ) ) of ConsensusFork.Bellatrix: value = RestPublishedSignedBlockContents( kind: ConsensusFork.Bellatrix, bellatrixData: bellatrix.SignedBeaconBlock( message: blck.bellatrixData, signature: signature.get() ) ) of ConsensusFork.Capella: value = RestPublishedSignedBlockContents( kind: ConsensusFork.Capella, capellaData: capella.SignedBeaconBlock( message: blck.capellaData, signature: signature.get() ) ) of ConsensusFork.Deneb: value = RestPublishedSignedBlockContents( kind: ConsensusFork.Deneb, denebData: DenebSignedBlockContents( # Constructed to be internally consistent signed_block: signed_message.get().distinctBase.denebData, kzg_proofs: kzg_proofs.get(), blobs: blobs.get() ) ) ## ForkedSignedBeaconBlock proc readValue*(reader: var JsonReader[RestJson], value: var ForkedSignedBeaconBlock) {. raises: [IOError, SerializationError].} = var version: Opt[ConsensusFork] data: Opt[JsonString] for fieldName in readObjectFields(reader): case fieldName of "version": if version.isSome(): reader.raiseUnexpectedField("Multiple version fields found", "ForkedSignedBeaconBlock") let vres = reader.readValue(string) case vres of "phase0": version = Opt.some(ConsensusFork.Phase0) of "altair": version = Opt.some(ConsensusFork.Altair) of "bellatrix": version = Opt.some(ConsensusFork.Bellatrix) of "capella": version = Opt.some(ConsensusFork.Capella) of "deneb": version = Opt.some(ConsensusFork.Deneb) else: reader.raiseUnexpectedValue("Incorrect version field value") of "data": if data.isSome(): reader.raiseUnexpectedField("Multiple data fields found", "ForkedSignedBeaconBlock") data = Opt.some(reader.readValue(JsonString)) else: unrecognizedFieldWarning() if version.isNone(): reader.raiseUnexpectedValue("Field version is missing") if data.isNone(): reader.raiseUnexpectedValue("Field data is missing") case version.get(): of ConsensusFork.Phase0: let res = try: RestJson.decode(string(data.get()), phase0.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect phase0 block format") value = ForkedSignedBeaconBlock.init(res) of ConsensusFork.Altair: let res = try: RestJson.decode(string(data.get()), altair.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect altair block format") value = ForkedSignedBeaconBlock.init(res) of ConsensusFork.Bellatrix: let res = try: RestJson.decode(string(data.get()), bellatrix.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect bellatrix block format") value = ForkedSignedBeaconBlock.init(res) of ConsensusFork.Capella: let res = try: RestJson.decode(string(data.get()), capella.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect capella block format") value = ForkedSignedBeaconBlock.init(res) of ConsensusFork.Deneb: let res = try: RestJson.decode(string(data.get()), deneb.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect deneb block format") value = ForkedSignedBeaconBlock.init(res) withBlck(value): forkyBlck.root = hash_tree_root(forkyBlck.message) proc writeValue*( writer: var JsonWriter[RestJson], value: ForkedSignedBeaconBlock ) {.raises: [IOError].} = writer.beginRecord() case value.kind of ConsensusFork.Phase0: writer.writeField("version", "phase0") writer.writeField("data", value.phase0Data) of ConsensusFork.Altair: writer.writeField("version", "altair") writer.writeField("data", value.altairData) of ConsensusFork.Bellatrix: writer.writeField("version", "bellatrix") writer.writeField("data", value.bellatrixData) of ConsensusFork.Capella: writer.writeField("version", "capella") writer.writeField("data", value.capellaData) of ConsensusFork.Deneb: writer.writeField("version", "deneb") writer.writeField("data", value.denebData) writer.endRecord() # ForkedHashedBeaconState is used where a `ForkedBeaconState` normally would # be used, mainly because caching the hash early on is easier to do proc readValue*(reader: var JsonReader[RestJson], value: var ForkedHashedBeaconState) {. raises: [IOError, SerializationError].} = var version: Opt[ConsensusFork] data: Opt[JsonString] for fieldName in readObjectFields(reader): case fieldName of "version": if version.isSome(): reader.raiseUnexpectedField("Multiple version fields found", "ForkedBeaconState") let vres = reader.readValue(string) version = case vres of "phase0": Opt.some(ConsensusFork.Phase0) of "altair": Opt.some(ConsensusFork.Altair) of "bellatrix": Opt.some(ConsensusFork.Bellatrix) of "capella": Opt.some(ConsensusFork.Capella) of "deneb": Opt.some(ConsensusFork.Deneb) else: reader.raiseUnexpectedValue("Incorrect version field value") of "data": if data.isSome(): reader.raiseUnexpectedField("Multiple data fields found", "ForkedBeaconState") data = Opt.some(reader.readValue(JsonString)) else: unrecognizedFieldWarning() if version.isNone(): reader.raiseUnexpectedValue("Field version is missing") if data.isNone(): reader.raiseUnexpectedValue("Field data is missing") # Use a temporary to avoid stack instances and `value` mutation in case of # exception let tmp = (ref ForkedHashedBeaconState)(kind: version.get()) template toValue(field: untyped) = if tmp[].kind == value.kind: assign(value.field, tmp[].field) else: value = tmp[] # slow, but rare (hopefully) value.field.root = hash_tree_root(value.field.data) case version.get(): of ConsensusFork.Phase0: try: tmp[].phase0Data.data = RestJson.decode( string(data.get()), phase0.BeaconState, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect phase0 beacon state format") toValue(phase0Data) of ConsensusFork.Altair: try: tmp[].altairData.data = RestJson.decode( string(data.get()), altair.BeaconState, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect altair beacon state format") toValue(altairData) of ConsensusFork.Bellatrix: try: tmp[].bellatrixData.data = RestJson.decode( string(data.get()), bellatrix.BeaconState, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect bellatrix beacon state format") toValue(bellatrixData) of ConsensusFork.Capella: try: tmp[].capellaData.data = RestJson.decode( string(data.get()), capella.BeaconState, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect capella beacon state format") toValue(capellaData) of ConsensusFork.Deneb: try: tmp[].denebData.data = RestJson.decode( string(data.get()), deneb.BeaconState, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Incorrect deneb beacon state format") toValue(denebData) proc writeValue*( writer: var JsonWriter[RestJson], value: ForkedHashedBeaconState ) {.raises: [IOError].} = writer.beginRecord() case value.kind of ConsensusFork.Phase0: writer.writeField("version", "phase0") writer.writeField("data", value.phase0Data.data) of ConsensusFork.Altair: writer.writeField("version", "altair") writer.writeField("data", value.altairData.data) of ConsensusFork.Bellatrix: writer.writeField("version", "bellatrix") writer.writeField("data", value.bellatrixData.data) of ConsensusFork.Capella: writer.writeField("version", "capella") writer.writeField("data", value.capellaData.data) of ConsensusFork.Deneb: writer.writeField("version", "deneb") writer.writeField("data", value.denebData.data) writer.endRecord() ## SomeForkedLightClientObject proc readValue*[T: SomeForkedLightClientObject]( reader: var JsonReader[RestJson], value: var T) {. raises: [IOError, SerializationError].} = var version: Opt[ConsensusFork] data: Opt[JsonString] for fieldName in readObjectFields(reader): case fieldName of "version": if version.isSome: reader.raiseUnexpectedField("Multiple version fields found", T.name) let consensusFork = ConsensusFork.decodeString(reader.readValue(string)).valueOr: reader.raiseUnexpectedValue("Incorrect version field value") version.ok consensusFork of "data": if data.isSome: reader.raiseUnexpectedField("Multiple data fields found", T.name) data.ok reader.readValue(JsonString) else: unrecognizedFieldWarning() if version.isNone: reader.raiseUnexpectedValue("Field version is missing") if data.isNone: reader.raiseUnexpectedValue("Field data is missing") withLcDataFork(lcDataForkAtConsensusFork(version.get)): when lcDataFork > LightClientDataFork.None: try: value = T.init(RestJson.decode( string(data.get()), T.Forky(lcDataFork), requireAllFields = true, allowUnknownFields = true)) except SerializationError: reader.raiseUnexpectedValue("Incorrect format (" & $lcDataFork & ")") else: reader.raiseUnexpectedValue("Unsupported fork " & $version.get) ## Web3SignerRequest proc writeValue*( writer: var JsonWriter[RestJson], value: Web3SignerRequest ) {.raises: [IOError].} = writer.beginRecord() case value.kind of Web3SignerRequestKind.AggregationSlot: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "AGGREGATION_SLOT") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("aggregation_slot", value.aggregationSlot) of Web3SignerRequestKind.AggregateAndProof: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "AGGREGATE_AND_PROOF") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("aggregate_and_proof", value.aggregateAndProof) of Web3SignerRequestKind.Attestation: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "ATTESTATION") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("attestation", value.attestation) of Web3SignerRequestKind.BlockV2: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "BLOCK_V2") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) # https://github.com/Consensys/web3signer/blob/2d956c019663ac70f60640d23196d1d321c1b1fa/core/src/main/resources/openapi-specs/eth2/signing/schemas.yaml#L483-L500 writer.writeField("beacon_block", value.beaconBlockHeader) if isSome(value.proofs): writer.writeField("proofs", value.proofs.get()) of Web3SignerRequestKind.Deposit: writer.writeField("type", "DEPOSIT") if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("deposit", value.deposit) of Web3SignerRequestKind.RandaoReveal: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "RANDAO_REVEAL") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("randao_reveal", value.randaoReveal) of Web3SignerRequestKind.VoluntaryExit: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "VOLUNTARY_EXIT") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("voluntary_exit", value.voluntaryExit) of Web3SignerRequestKind.SyncCommitteeMessage: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "SYNC_COMMITTEE_MESSAGE") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("sync_committee_message", value.syncCommitteeMessage) of Web3SignerRequestKind.SyncCommitteeSelectionProof: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "SYNC_COMMITTEE_SELECTION_PROOF") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("sync_aggregator_selection_data", value.syncAggregatorSelectionData) of Web3SignerRequestKind.SyncCommitteeContributionAndProof: doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "SYNC_COMMITTEE_CONTRIBUTION_AND_PROOF") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("contribution_and_proof", value.syncCommitteeContributionAndProof) of Web3SignerRequestKind.ValidatorRegistration: # https://consensys.github.io/web3signer/web3signer-eth2.html#operation/ETH2_SIGN doAssert(value.forkInfo.isSome(), "forkInfo should be set for this type of request") writer.writeField("type", "VALIDATOR_REGISTRATION") writer.writeField("fork_info", value.forkInfo.get()) if isSome(value.signingRoot): writer.writeField("signingRoot", value.signingRoot) writer.writeField("validator_registration", value.validatorRegistration) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var Web3SignerRequest) {. raises: [IOError, SerializationError].} = var requestKind: Opt[Web3SignerRequestKind] forkInfo: Opt[Web3SignerForkInfo] signingRoot: Opt[Eth2Digest] data: Opt[JsonString] proofs: seq[Web3SignerMerkleProof] dataName: string for fieldName in readObjectFields(reader): case fieldName of "type": if requestKind.isSome(): reader.raiseUnexpectedField("Multiple `type` fields found", "Web3SignerRequest") let vres = reader.readValue(string) requestKind = Opt.some( case vres of "AGGREGATION_SLOT": Web3SignerRequestKind.AggregationSlot of "AGGREGATE_AND_PROOF": Web3SignerRequestKind.AggregateAndProof of "ATTESTATION": Web3SignerRequestKind.Attestation of "BLOCK_V2": Web3SignerRequestKind.BlockV2 of "DEPOSIT": Web3SignerRequestKind.Deposit of "RANDAO_REVEAL": Web3SignerRequestKind.RandaoReveal of "VOLUNTARY_EXIT": Web3SignerRequestKind.VoluntaryExit of "SYNC_COMMITTEE_MESSAGE": Web3SignerRequestKind.SyncCommitteeMessage of "SYNC_COMMITTEE_SELECTION_PROOF": Web3SignerRequestKind.SyncCommitteeSelectionProof of "SYNC_COMMITTEE_CONTRIBUTION_AND_PROOF": Web3SignerRequestKind.SyncCommitteeContributionAndProof of "VALIDATOR_REGISTRATION": Web3SignerRequestKind.ValidatorRegistration else: reader.raiseUnexpectedValue("Unexpected `type` value") ) of "fork_info": if forkInfo.isSome(): reader.raiseUnexpectedField("Multiple `fork_info` fields found", "Web3SignerRequest") forkInfo = Opt.some(reader.readValue(Web3SignerForkInfo)) of "signingRoot": if signingRoot.isSome(): reader.raiseUnexpectedField("Multiple `signingRoot` fields found", "Web3SignerRequest") signingRoot = Opt.some(reader.readValue(Eth2Digest)) of "proofs": let newProofs = reader.readValue(seq[Web3SignerMerkleProof]) proofs.add(newProofs) of "aggregation_slot", "aggregate_and_proof", "block", "beacon_block", "randao_reveal", "voluntary_exit", "sync_committee_message", "sync_aggregator_selection_data", "contribution_and_proof", "attestation", "deposit", "validator_registration": if data.isSome(): reader.raiseUnexpectedField("Multiple data fields found", "Web3SignerRequest") dataName = fieldName data = Opt.some(reader.readValue(JsonString)) else: unrecognizedFieldWarning() if requestKind.isNone(): reader.raiseUnexpectedValue("Field `type` is missing") value = case requestKind.get() of Web3SignerRequestKind.AggregationSlot: if dataName != "aggregation_slot": reader.raiseUnexpectedValue("Field `aggregation_slot` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(Web3SignerAggregationSlotData, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `aggregation_slot` format") res.get() Web3SignerRequest(kind: Web3SignerRequestKind.AggregationSlot, forkInfo: forkInfo, signingRoot: signingRoot, aggregationSlot: data ) of Web3SignerRequestKind.AggregateAndProof: if dataName != "aggregate_and_proof": reader.raiseUnexpectedValue("Field `aggregate_and_proof` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(AggregateAndProof, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `aggregate_and_proof` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.AggregateAndProof, forkInfo: forkInfo, signingRoot: signingRoot, aggregateAndProof: data ) of Web3SignerRequestKind.Attestation: if dataName != "attestation": reader.raiseUnexpectedValue("Field `attestation` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(AttestationData, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `attestation` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.Attestation, forkInfo: forkInfo, signingRoot: signingRoot, attestation: data ) of Web3SignerRequestKind.BlockV2: # https://github.com/ConsenSys/web3signer/blob/41834a927088f1bde7a097e17d19e954d0058e54/core/src/main/resources/openapi-specs/eth2/signing/schemas.yaml#L421-L425 (branch v22.7.0) # It's the "beacon_block" field even when it's not a block, but a header if dataName != "beacon_block": reader.raiseUnexpectedValue("Field `beacon_block` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(Web3SignerForkedBeaconBlock, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `beacon_block` format") res.get() if len(proofs) > 0: Web3SignerRequest( kind: Web3SignerRequestKind.BlockV2, forkInfo: forkInfo, signingRoot: signingRoot, beaconBlockHeader: data, proofs: Opt.some(proofs) ) else: Web3SignerRequest( kind: Web3SignerRequestKind.BlockV2, forkInfo: forkInfo, signingRoot: signingRoot, beaconBlockHeader: data ) of Web3SignerRequestKind.Deposit: if dataName != "deposit": reader.raiseUnexpectedValue("Field `deposit` is missing") let data = block: let res = decodeJsonString(Web3SignerDepositData, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `deposit` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.Deposit, signingRoot: signingRoot, deposit: data ) of Web3SignerRequestKind.RandaoReveal: if dataName != "randao_reveal": reader.raiseUnexpectedValue("Field `randao_reveal` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(Web3SignerRandaoRevealData, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `randao_reveal` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.RandaoReveal, forkInfo: forkInfo, signingRoot: signingRoot, randaoReveal: data ) of Web3SignerRequestKind.VoluntaryExit: if dataName != "voluntary_exit": reader.raiseUnexpectedValue("Field `voluntary_exit` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(VoluntaryExit, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `voluntary_exit` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.VoluntaryExit, forkInfo: forkInfo, signingRoot: signingRoot, voluntaryExit: data ) of Web3SignerRequestKind.SyncCommitteeMessage: if dataName != "sync_committee_message": reader.raiseUnexpectedValue( "Field `sync_committee_message` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(Web3SignerSyncCommitteeMessageData, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `sync_committee_message` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.SyncCommitteeMessage, forkInfo: forkInfo, signingRoot: signingRoot, syncCommitteeMessage: data ) of Web3SignerRequestKind.SyncCommitteeSelectionProof: if dataName != "sync_aggregator_selection_data": reader.raiseUnexpectedValue( "Field `sync_aggregator_selection_data` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(SyncAggregatorSelectionData, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `sync_aggregator_selection_data` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.SyncCommitteeSelectionProof, forkInfo: forkInfo, signingRoot: signingRoot, syncAggregatorSelectionData: data ) of Web3SignerRequestKind.SyncCommitteeContributionAndProof: if dataName != "contribution_and_proof": reader.raiseUnexpectedValue( "Field `contribution_and_proof` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(ContributionAndProof, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `contribution_and_proof` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.SyncCommitteeContributionAndProof, forkInfo: forkInfo, signingRoot: signingRoot, syncCommitteeContributionAndProof: data ) of Web3SignerRequestKind.ValidatorRegistration: if dataName != "validator_registration": reader.raiseUnexpectedValue( "Field `validator_registration` is missing") if forkInfo.isNone(): reader.raiseUnexpectedValue("Field `fork_info` is missing") let data = block: let res = decodeJsonString(Web3SignerValidatorRegistration, data.get()) if res.isErr(): reader.raiseUnexpectedValue( "Incorrect field `validator_registration` format") res.get() Web3SignerRequest( kind: Web3SignerRequestKind.ValidatorRegistration, forkInfo: forkInfo, signingRoot: signingRoot, validatorRegistration: data ) ## RemoteKeystoreStatus proc writeValue*( writer: var JsonWriter[RestJson], value: RemoteKeystoreStatus ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("status", $value.status) if value.message.isSome(): writer.writeField("message", value.message.get()) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var RemoteKeystoreStatus) {. raises: [IOError, SerializationError].} = var message: Opt[string] var status: Opt[KeystoreStatus] for fieldName in readObjectFields(reader): case fieldName of "message": if message.isSome(): reader.raiseUnexpectedField("Multiple `message` fields found", "RemoteKeystoreStatus") message = Opt.some(reader.readValue(string)) of "status": if status.isSome(): reader.raiseUnexpectedField("Multiple `status` fields found", "RemoteKeystoreStatus") let res = reader.readValue(string) status = Opt.some( case res of "error": KeystoreStatus.error of "not_active": KeystoreStatus.notActive of "not_found": KeystoreStatus.notFound of "deleted": KeystoreStatus.deleted of "duplicate": KeystoreStatus.duplicate of "imported": KeystoreStatus.imported else: reader.raiseUnexpectedValue("Invalid `status` value") ) else: unrecognizedFieldWarning() if status.isNone(): reader.raiseUnexpectedValue("Field `status` is missing") value = RemoteKeystoreStatus(status: status.get(), message: message) ## ScryptSalt proc readValue*(reader: var JsonReader[RestJson], value: var ScryptSalt) {. raises: [SerializationError, IOError].} = let res = ncrutils.fromHex(reader.readValue(string)) if len(res) == 0: reader.raiseUnexpectedValue("Invalid scrypt salt value") value = ScryptSalt(res) ## Pbkdf2Params proc writeValue*( writer: var JsonWriter[RestJson], value: Pbkdf2Params ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("dklen", JsonString(Base10.toString(value.dklen))) writer.writeField("c", JsonString(Base10.toString(value.c))) writer.writeField("prf", value.prf) writer.writeField("salt", value.salt) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var Pbkdf2Params) {. raises: [SerializationError, IOError].} = var dklen: Opt[uint64] c: Opt[uint64] prf: Opt[PrfKind] salt: Opt[Pbkdf2Salt] for fieldName in readObjectFields(reader): case fieldName of "dklen": if dklen.isSome(): reader.raiseUnexpectedField("Multiple `dklen` fields found", "Pbkdf2Params") dklen = Opt.some(reader.readValue(uint64)) of "c": if c.isSome(): reader.raiseUnexpectedField("Multiple `c` fields found", "Pbkdf2Params") c = Opt.some(reader.readValue(uint64)) of "prf": if prf.isSome(): reader.raiseUnexpectedField("Multiple `prf` fields found", "Pbkdf2Params") prf = Opt.some(reader.readValue(PrfKind)) of "salt": if salt.isSome(): reader.raiseUnexpectedField("Multiple `salt` fields found", "Pbkdf2Params") salt = Opt.some(reader.readValue(Pbkdf2Salt)) else: unrecognizedFieldWarning() if dklen.isNone(): reader.raiseUnexpectedValue("Field `dklen` is missing") if c.isNone(): reader.raiseUnexpectedValue("Field `c` is missing") if prf.isNone(): reader.raiseUnexpectedValue("Field `prf` is missing") if salt.isNone(): reader.raiseUnexpectedValue("Field `salt` is missing") value = Pbkdf2Params( dklen: dklen.get(), c: c.get(), prf: prf.get(), salt: salt.get() ) ## ScryptParams proc writeValue*( writer: var JsonWriter[RestJson], value: ScryptParams ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("dklen", JsonString(Base10.toString(value.dklen))) writer.writeField("n", JsonString(Base10.toString(uint64(value.n)))) writer.writeField("p", JsonString(Base10.toString(uint64(value.p)))) writer.writeField("r", JsonString(Base10.toString(uint64(value.r)))) writer.writeField("salt", value.salt) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var ScryptParams) {. raises: [SerializationError, IOError].} = var dklen: Opt[uint64] n, p, r: Opt[int] salt: Opt[ScryptSalt] for fieldName in readObjectFields(reader): case fieldName of "dklen": if dklen.isSome(): reader.raiseUnexpectedField("Multiple `dklen` fields found", "ScryptParams") dklen = Opt.some(reader.readValue(uint64)) of "n": if n.isSome(): reader.raiseUnexpectedField("Multiple `n` fields found", "ScryptParams") let res = reader.readValue(int) if res < 0: reader.raiseUnexpectedValue("Unexpected negative `n` value") n = Opt.some(res) of "p": if p.isSome(): reader.raiseUnexpectedField("Multiple `p` fields found", "ScryptParams") let res = reader.readValue(int) if res < 0: reader.raiseUnexpectedValue("Unexpected negative `p` value") p = Opt.some(res) of "r": if r.isSome(): reader.raiseUnexpectedField("Multiple `r` fields found", "ScryptParams") let res = reader.readValue(int) if res < 0: reader.raiseUnexpectedValue("Unexpected negative `r` value") r = Opt.some(res) of "salt": if salt.isSome(): reader.raiseUnexpectedField("Multiple `salt` fields found", "ScryptParams") salt = Opt.some(reader.readValue(ScryptSalt)) else: unrecognizedFieldWarning() if dklen.isNone(): reader.raiseUnexpectedValue("Field `dklen` is missing") if n.isNone(): reader.raiseUnexpectedValue("Field `n` is missing") if p.isNone(): reader.raiseUnexpectedValue("Field `p` is missing") if r.isNone(): reader.raiseUnexpectedValue("Field `r` is missing") if salt.isNone(): reader.raiseUnexpectedValue("Field `salt` is missing") value = ScryptParams( dklen: dklen.get(), n: n.get(), p: p.get(), r: r.get(), salt: salt.get() ) ## Keystore proc writeValue*( writer: var JsonWriter[RestJson], value: Keystore ) {.error: "keystores must be converted to json with Json.encode(keystore). " & "There is no REST-specific encoding" .} proc readValue*(reader: var JsonReader[RestJson], value: var Keystore) {. error: "Keystores must be loaded with `parseKeystore`. " & "There is no REST-specific encoding".} ## KeystoresAndSlashingProtection proc writeValue*( writer: var JsonWriter[RestJson], value: KeystoresAndSlashingProtection ) {.raises: [IOError].} = writer.beginRecord() let keystores = block: var res: seq[string] for keystore in value.keystores: let encoded = Json.encode(keystore) res.add(encoded) res writer.writeField("keystores", keystores) writer.writeField("passwords", value.passwords) if value.slashing_protection.isSome(): let slashingProtection = RestJson.encode(value.slashing_protection.get) writer.writeField("slashing_protection", slashingProtection) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var KeystoresAndSlashingProtection) {. raises: [SerializationError, IOError].} = var strKeystores: seq[string] passwords: seq[string] strSlashing: Opt[string] for fieldName in readObjectFields(reader): case fieldName of "keystores": strKeystores = reader.readValue(seq[string]) of "passwords": passwords = reader.readValue(seq[string]) of "slashing_protection": if strSlashing.isSome(): reader.raiseUnexpectedField( "Multiple `slashing_protection` fields found", "KeystoresAndSlashingProtection") strSlashing = Opt.some(reader.readValue(string)) else: unrecognizedFieldWarning() if len(strKeystores) == 0: reader.raiseUnexpectedValue("Missing or empty `keystores` value") if len(passwords) == 0: reader.raiseUnexpectedValue("Missing or empty `passwords` value") let keystores = block: var res: seq[Keystore] for item in strKeystores: let key = try: parseKeystore(item) except SerializationError: # TODO re-raise the exception by adjusting the column index, so the user # will get an accurate syntax error within the larger message reader.raiseUnexpectedValue("Invalid keystore format") res.add(key) res let slashing = if strSlashing.isSome(): let db = try: RestJson.decode(strSlashing.get(), SPDIR, requireAllFields = true, allowUnknownFields = true) except SerializationError: reader.raiseUnexpectedValue("Invalid slashing protection format") Opt.some(db) else: Opt.none(SPDIR) value = KeystoresAndSlashingProtection( keystores: keystores, passwords: passwords, slashing_protection: slashing ) ## RestActivityItem proc writeValue*( writer: var JsonWriter[RestJson], value: RestActivityItem ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("index", value.index) writer.writeField("epoch", value.epoch) writer.writeField("active", value.active) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var RestActivityItem) {. raises: [SerializationError, IOError].} = var index: Opt[ValidatorIndex] var epoch: Opt[Epoch] var active: Opt[bool] for fieldName in readObjectFields(reader): case fieldName of "index": if index.isSome(): reader.raiseUnexpectedField( "Multiple `index` fields found", "RestActivityItem") index = Opt.some(reader.readValue(ValidatorIndex)) of "epoch": if epoch.isSome(): reader.raiseUnexpectedField( "Multiple `epoch` fields found", "RestActivityItem") epoch = Opt.some(reader.readValue(Epoch)) of "active": if active.isSome(): reader.raiseUnexpectedField( "Multiple `active` fields found", "RestActivityItem") active = Opt.some(reader.readValue(bool)) else: unrecognizedFieldIgnore() if index.isNone(): reader.raiseUnexpectedValue("Missing or empty `index` value") if epoch.isNone(): reader.raiseUnexpectedValue("Missing or empty `epoch` value") if active.isNone(): reader.raiseUnexpectedValue("Missing or empty `active` value") value = RestActivityItem(index: index.get(), epoch: epoch.get(), active: active.get()) ## RestLivenessItem proc writeValue*( writer: var JsonWriter[RestJson], value: RestLivenessItem ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("index", value.index) writer.writeField("is_live", value.is_live) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var RestLivenessItem) {. raises: [SerializationError, IOError].} = var index: Opt[ValidatorIndex] var isLive: Opt[bool] for fieldName in readObjectFields(reader): case fieldName of "index": if index.isSome(): reader.raiseUnexpectedField( "Multiple `index` fields found", "RestLivenessItem") index = Opt.some(reader.readValue(ValidatorIndex)) of "is_live": if isLive.isSome(): reader.raiseUnexpectedField( "Multiple `is_live` fields found", "RestLivenessItem") isLive = Opt.some(reader.readValue(bool)) else: unrecognizedFieldIgnore() if index.isNone(): reader.raiseUnexpectedValue("Missing or empty `index` value") if isLive.isNone(): reader.raiseUnexpectedValue("Missing or empty `is_live` value") value = RestLivenessItem(index: index.get(), is_live: isLive.get()) ## HeadChangeInfoObject proc writeValue*( writer: var JsonWriter[RestJson], value: HeadChangeInfoObject ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("slot", value.slot) writer.writeField("block", value.block_root) writer.writeField("state", value.state_root) writer.writeField("epoch_transition", value.epoch_transition) writer.writeField("previous_duty_dependent_root", value.previous_duty_dependent_root) writer.writeField("current_duty_dependent_root", value.current_duty_dependent_root) if value.optimistic.isSome(): writer.writeField("execution_optimistic", value.optimistic.get()) writer.endRecord() ## ReorgInfoObject proc writeValue*( writer: var JsonWriter[RestJson], value: ReorgInfoObject ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("slot", value.slot) writer.writeField("depth", value.depth) writer.writeField("old_head_block", value.old_head_block) writer.writeField("new_head_block", value.new_head_block) writer.writeField("old_head_state", value.old_head_state) writer.writeField("new_head_state", value.new_head_state) if value.optimistic.isSome(): writer.writeField("execution_optimistic", value.optimistic.get()) writer.endRecord() ## FinalizationInfoObject proc writeValue*( writer: var JsonWriter[RestJson], value: FinalizationInfoObject ) {.raises: [IOError].} = writer.beginRecord() writer.writeField("block", value.block_root) writer.writeField("state", value.state_root) writer.writeField("epoch", value.epoch) if value.optimistic.isSome(): writer.writeField("execution_optimistic", value.optimistic.get()) writer.endRecord() ## RestNodeValidity proc writeValue*( writer: var JsonWriter[RestJson], value: RestNodeValidity ) {.raises: [IOError].} = writer.writeValue($value) ## RestErrorMessage proc readValue*(reader: var JsonReader[RestJson], value: var RestErrorMessage) {. raises: [SerializationError, IOError].} = var code: Opt[int] message: Opt[string] stacktraces: Opt[seq[string]] for fieldName in readObjectFields(reader): case fieldName of "code": if code.isSome(): reader.raiseUnexpectedField("Multiple `code` fields found", "RestErrorMessage") let ires = try: let res = reader.readValue(int) if res < 0: reader.raiseUnexpectedValue("Invalid `code` field value") Opt.some(res) except SerializationError: Opt.none(int) if ires.isNone(): let sres = try: parseInt(reader.readValue(string)) except ValueError: reader.raiseUnexpectedValue("Invalid `code` field format") if sres < 0: reader.raiseUnexpectedValue("Invalid `code` field value") code = Opt.some(sres) else: code = ires of "message": if message.isSome(): reader.raiseUnexpectedField("Multiple `message` fields found", "RestErrorMessage") message = Opt.some(reader.readValue(string)) of "stacktraces": if stacktraces.isSome(): reader.raiseUnexpectedField("Multiple `stacktraces` fields found", "RestErrorMessage") stacktraces = Opt.some(reader.readValue(seq[string])) else: unrecognizedFieldIgnore() if code.isNone(): reader.raiseUnexpectedValue("Missing or invalid `code` value") if message.isNone(): reader.raiseUnexpectedValue("Missing or invalid `message` value") value = RestErrorMessage( code: code.get(), message: message.get(), stacktraces: stacktraces ) proc writeValue*(writer: var JsonWriter[RestJson], value: RestErrorMessage) {. raises: [IOError].} = writer.beginRecord() writer.writeField("code", value.code) writer.writeField("message", value.message) if value.stacktraces.isSome(): writer.writeField("stacktraces", value.stacktraces.get()) writer.endRecord() ## VCRuntimeConfig proc readValue*(reader: var JsonReader[RestJson], value: var VCRuntimeConfig) {. raises: [SerializationError, IOError].} = for fieldName in readObjectFields(reader): let fieldValue = reader.readValue(string) if value.hasKeyOrPut(toUpperAscii(fieldName), fieldValue): let msg = "Multiple `" & fieldName & "` fields found" reader.raiseUnexpectedField(msg, "VCRuntimeConfig") ## ForkedMaybeBlindedBeaconBlock proc writeValue*(writer: var JsonWriter[RestJson], value: ProduceBlockResponseV3) {.raises: [IOError].} = writer.beginRecord() withForkyMaybeBlindedBlck(value): writer.writeField("version", consensusFork.toString()) when isBlinded: writer.writeField("execution_payload_blinded", "true") else: writer.writeField("execution_payload_blinded", "false") if value.executionValue.isSome(): writer.writeField("execution_payload_value", $(value.executionValue.get())) if value.consensusValue.isSome(): writer.writeField("consensus_block_value", $(value.consensusValue.get())) writer.writeField("data", forkyMaybeBlindedBlck) writer.endRecord() proc readValue*(reader: var JsonReader[RestJson], value: var ProduceBlockResponseV3) {. raises: [SerializationError, IOError].} = var version: Opt[ConsensusFork] blinded: Opt[bool] executionValue: Opt[UInt256] consensusValue: Opt[UInt256] data: Opt[JsonString] prepareForkedBlockReading(ProduceBlockResponseV3, reader, version, data, blinded, executionValue, consensusValue) if blinded.isNone(): reader.raiseUnexpectedValue("Field `execution_payload_blinded` is missing") if executionValue.isNone(): reader.raiseUnexpectedValue("Field `execution_payload_value` is missing") # TODO (cheatfate): At some point we should add check for missing # `consensus_block_value` too if data.isNone(): reader.raiseUnexpectedValue("Field `data` is missing") withConsensusFork(version.get): when consensusFork >= ConsensusFork.Deneb: if blinded.get: value = ForkedMaybeBlindedBeaconBlock.init( RestJson.decode( string(data.get()), consensusFork.BlindedBlockContents, requireAllFields = true, allowUnknownFields = true), executionValue, consensusValue) else: value = ForkedMaybeBlindedBeaconBlock.init( RestJson.decode( string(data.get()), consensusFork.BlockContents, requireAllFields = true, allowUnknownFields = true), executionValue, consensusValue) elif consensusFork >= ConsensusFork.Bellatrix: if blinded.get: reader.raiseUnexpectedValue( "`execution_payload_blinded` unsupported for `version`") value = ForkedMaybeBlindedBeaconBlock.init( RestJson.decode( string(data.get()), consensusFork.BlockContents, requireAllFields = true, allowUnknownFields = true), executionValue, consensusValue) else: if blinded.get: reader.raiseUnexpectedValue( "`execution_payload_blinded` unsupported for `version`") value = ForkedMaybeBlindedBeaconBlock.init( RestJson.decode( string(data.get()), consensusFork.BlockContents, requireAllFields = true, allowUnknownFields = true)) proc parseRoot(value: string): Result[Eth2Digest, cstring] = try: ok(Eth2Digest(data: hexToByteArray[32](value))) except ValueError: err("Unable to decode root value") ## GraffitiString proc writeValue*(writer: var JsonWriter[RestJson], value: GraffitiString) {. raises: [IOError].} = writeValue(writer, $value) proc readValue*(reader: var JsonReader[RestJson], T: type GraffitiString): T {. raises: [IOError, SerializationError].} = let res = init(GraffitiString, reader.readValue(string)) if res.isErr(): reader.raiseUnexpectedValue res.error res.get proc decodeBody*( t: typedesc[RestPublishedSignedBeaconBlock], body: ContentBody, version: string ): Result[RestPublishedSignedBeaconBlock, RestErrorMessage] = if body.contentType == ApplicationJsonMediaType: let data = try: RestJson.decode(body.data, RestPublishedSignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(data) elif body.contentType == OctetStreamMediaType: let consensusFork = ConsensusFork.decodeString(version).valueOr: return err(RestErrorMessage.init(Http400, UnableDecodeVersionError, [version, $error])) case consensusFork of ConsensusFork.Phase0: let blck = try: SSZ.decode(body.data, phase0.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBeaconBlock(ForkedSignedBeaconBlock.init(blck))) of ConsensusFork.Altair: let blck = try: SSZ.decode(body.data, altair.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBeaconBlock(ForkedSignedBeaconBlock.init(blck))) of ConsensusFork.Bellatrix: let blck = try: SSZ.decode(body.data, bellatrix.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBeaconBlock(ForkedSignedBeaconBlock.init(blck))) of ConsensusFork.Capella: let blck = try: SSZ.decode(body.data, capella.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBeaconBlock(ForkedSignedBeaconBlock.init(blck))) of ConsensusFork.Deneb: let blck = try: SSZ.decode(body.data, deneb.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBeaconBlock(ForkedSignedBeaconBlock.init(blck))) else: err(RestErrorMessage.init(Http415, "Invalid content type", [version, $body.contentType])) proc decodeBody*( t: typedesc[RestPublishedSignedBlockContents], body: ContentBody, version: string ): Result[RestPublishedSignedBlockContents, RestErrorMessage] = if body.contentType == ApplicationJsonMediaType: let data = try: RestJson.decode(body.data, RestPublishedSignedBlockContents, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(data) elif body.contentType == OctetStreamMediaType: let consensusFork = ConsensusFork.decodeString(version).valueOr: return err(RestErrorMessage.init(Http400, UnableDecodeVersionError, [version, $error])) case consensusFork of ConsensusFork.Phase0: let blck = try: SSZ.decode(body.data, phase0.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Phase0, phase0Data: blck)) of ConsensusFork.Altair: let blck = try: SSZ.decode(body.data, altair.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Altair, altairData: blck)) of ConsensusFork.Bellatrix: let blck = try: SSZ.decode(body.data, bellatrix.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Bellatrix, bellatrixData: blck)) of ConsensusFork.Capella: let blck = try: SSZ.decode(body.data, capella.SignedBeaconBlock) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Capella, capellaData: blck)) of ConsensusFork.Deneb: let blckContents = try: SSZ.decode(body.data, DenebSignedBlockContents) except SerializationError as exc: return err(RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err(RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Deneb, denebData: blckContents)) else: err(RestErrorMessage.init(Http415, "Invalid content type", [version, $body.contentType])) proc decodeBody*[T](t: typedesc[T], body: ContentBody): Result[T, cstring] = if body.contentType != ApplicationJsonMediaType: return err("Unsupported content type") let data = try: RestJson.decode(body.data, T, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to deserialize REST JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err("Unable to deserialize data") except CatchableError: return err("Unexpected deserialization error") ok(data) proc decodeBodyJsonOrSsz*( t: typedesc[RestPublishedSignedBlockContents], body: ContentBody, version: string ): Result[RestPublishedSignedBlockContents, RestErrorMessage] = if body.contentType == OctetStreamMediaType: decodeBody(RestPublishedSignedBlockContents, body, version) elif body.contentType == ApplicationJsonMediaType: let consensusFork = ConsensusFork.decodeString(version).valueOr: return err(RestErrorMessage.init(Http400, UnableDecodeVersionError, [version, $error])) case consensusFork of ConsensusFork.Phase0: let blck = try: RestJson.decode(body.data, phase0.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err( RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err( RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Phase0, phase0Data: blck)) of ConsensusFork.Altair: let blck = try: RestJson.decode(body.data, altair.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err( RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err( RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Altair, altairData: blck)) of ConsensusFork.Bellatrix: let blck = try: RestJson.decode(body.data, bellatrix.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err( RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err( RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Bellatrix, bellatrixData: blck)) of ConsensusFork.Capella: let blck = try: RestJson.decode(body.data, capella.SignedBeaconBlock, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err( RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err( RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Capella, capellaData: blck)) of ConsensusFork.Deneb: let blckContents = try: RestJson.decode(body.data, DenebSignedBlockContents, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err( RestErrorMessage.init(Http400, UnableDecodeError, [version, exc.formatMsg("")])) except CatchableError as exc: return err( RestErrorMessage.init(Http400, UnexpectedDecodeError, [version, $exc.msg])) ok(RestPublishedSignedBlockContents( kind: ConsensusFork.Deneb, denebData: blckContents)) else: err(RestErrorMessage.init(Http415, "Invalid content type", [version, $body.contentType])) proc decodeBodyJsonOrSsz*[T](t: typedesc[T], body: ContentBody): Result[T, RestErrorMessage] = if body.contentType == ApplicationJsonMediaType: let data = try: RestJson.decode(body.data, T, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to decode JSON data", err = exc.formatMsg(""), data = string.fromBytes(body.data) return err( RestErrorMessage.init(Http400, UnableDecodeError, [exc.formatMsg("")])) except CatchableError as exc: return err( RestErrorMessage.init(Http400, UnexpectedDecodeError, [$exc.msg])) ok(data) elif body.contentType == OctetStreamMediaType: let blck = try: SSZ.decode(body.data, T) except SerializationError as exc: return err( RestErrorMessage.init(Http400, UnableDecodeError, [exc.formatMsg("")])) except CatchableError as exc: return err( RestErrorMessage.init(Http400, UnexpectedDecodeError, [$exc.msg])) ok(blck) else: err(RestErrorMessage.init(Http415, "Invalid content type", [$body.contentType])) proc encodeBytes*[T: EncodeTypes](value: T, contentType: string): RestResult[seq[byte]] = case contentType of "application/json": let data = block: try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.writeValue(value) stream.getOutput(seq[byte]) except IOError: return err("Input/output error") except SerializationError: return err("Serialization error") ok(data) else: err("Content-Type not supported") proc encodeBytes*[T: EncodeArrays](value: T, contentType: string): RestResult[seq[byte]] = case contentType of "application/json": let data = block: try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.writeArray(value) stream.getOutput(seq[byte]) except IOError: return err("Input/output error") except SerializationError: return err("Serialization error") ok(data) else: err("Content-Type not supported") proc encodeBytes*[T: EncodeOctetTypes]( value: T, contentType: string ): RestResult[seq[byte]] = case contentType of "application/json": let data = try: var stream = memoryOutput() var writer = JsonWriter[RestJson].init(stream) writer.writeValue(value) stream.getOutput(seq[byte]) except IOError: return err("Input/output error") except SerializationError: return err("Serialization error") ok(data) of "application/octet-stream": let data = try: SSZ.encode(value) except CatchableError: return err("Serialization error") ok(data) else: err("Content-Type not supported") func readSszResBytes(T: typedesc[RestBlockTypes], data: openArray[byte]): RestResult[T] = var res: T try: readSszBytes(data, res) ok(res) except SszSizeMismatchError: err("Incorrect SSZ object's size") except SszError: err("Invalid SSZ object") proc decodeBytes*[T: DecodeConsensysTypes]( t: typedesc[T], value: openArray[byte], contentType: Opt[ContentTypeData], consensusVersion: string ): RestResult[T] = let mediaType = if contentType.isNone() or isWildCard(contentType.get().mediaType): return err("Invalid/missing Content-Type value") else: contentType.get().mediaType if mediaType == ApplicationJsonMediaType: try: ok(RestJson.decode(value, T, requireAllFields = true, allowUnknownFields = true)) except SerializationError as exc: debug "Failed to deserialize REST JSON data", err = exc.formatMsg(""), data = string.fromBytes(value) return err("Serialization error") elif mediaType == OctetStreamMediaType: when t is ProduceBlockResponseV2: let fork = ConsensusFork.decodeString(consensusVersion).valueOr: return err("Invalid or Unsupported consensus version") case fork of ConsensusFork.Deneb: let blckContents = ? readSszResBytes(deneb.BlockContents, value) ok(ProduceBlockResponseV2(kind: ConsensusFork.Deneb, denebData: blckContents)) of ConsensusFork.Capella: let blck = ? readSszResBytes(capella.BeaconBlock, value) ok(ProduceBlockResponseV2(kind: ConsensusFork.Capella, capellaData: blck)) of ConsensusFork.Bellatrix: let blck = ? readSszResBytes(bellatrix.BeaconBlock, value) ok(ProduceBlockResponseV2(kind: ConsensusFork.Bellatrix, bellatrixData: blck)) of ConsensusFork.Altair: let blck = ? readSszResBytes(altair.BeaconBlock, value) ok(ProduceBlockResponseV2(kind: ConsensusFork.Altair, altairData: blck)) of ConsensusFork.Phase0: let blck = ? readSszResBytes(phase0.BeaconBlock, value) ok(ProduceBlockResponseV2(kind: ConsensusFork.Phase0, phase0Data: blck)) elif t is ProduceBlindedBlockResponse: let fork = ConsensusFork.decodeString(consensusVersion).valueOr: return err("Invalid or Unsupported consensus version") case fork of ConsensusFork.Deneb: let blck = ? readSszResBytes(deneb_mev.BlindedBeaconBlock, value) forked = ForkedBlindedBeaconBlock( kind: ConsensusFork.Deneb, denebData: blck) ok(ProduceBlindedBlockResponse(forked)) of ConsensusFork.Capella: let blck = ? readSszResBytes(capella_mev.BlindedBeaconBlock, value) forked = ForkedBlindedBeaconBlock( kind: ConsensusFork.Capella, capellaData: blck) ok(ProduceBlindedBlockResponse(forked)) of ConsensusFork.Bellatrix, ConsensusFork.Altair, ConsensusFork.Phase0: err("Unable to decode blinded block for Bellatrix, Altair, and Phase0 forks") else: err("Unsupported Content-Type") proc decodeBytes*[T: ProduceBlockResponseV3]( t: typedesc[T], value: openArray[byte], contentType: Opt[ContentTypeData], headerConsensusVersion: string, headerBlinded: string, headerPayloadValue: string, headerConsensusValue: string): RestResult[T] = let mediaType = if contentType.isNone(): ApplicationJsonMediaType else: if isWildCard(contentType.get().mediaType): return err("Incorrect Content-Type") contentType.get().mediaType if mediaType == ApplicationJsonMediaType: try: ok(RestJson.decode(value, T, requireAllFields = true, allowUnknownFields = true)) except SerializationError as exc: debug "Failed to deserialize REST JSON data", err = exc.formatMsg(""), data = string.fromBytes(value) return err("Serialization error") elif mediaType == OctetStreamMediaType: let fork = ConsensusFork.decodeString(headerConsensusVersion).valueOr: return err("Invalid or Unsupported consensus version") blinded = block: var toCheck = headerBlinded.toLowerAscii() if toCheck == "true": true elif toCheck == "false": false else: return err("Incorrect `Eth-Execution-Payload-Blinded` header value") executionValue = try: Opt.some parse(headerPayloadValue, UInt256, 10) except ValueError: return err("Incorrect `Eth-Execution-Payload-Value` header value") consensusValue = if len(headerConsensusValue) == 0: # TODO (cheatfate): We should not allow empty `consensus-value`. Opt.none(Uint256) else: try: Opt.some parse(headerConsensusValue, UInt256, 10) except ValueError: return err("Incorrect `Eth-Consensus-Block-Value` header value") withConsensusFork(fork): when consensusFork >= ConsensusFork.Deneb: if blinded: let contents = ? readSszResBytes(consensusFork.BlindedBlockContents, value) ok( ForkedMaybeBlindedBeaconBlock.init( contents, executionValue, consensusValue)) else: let contents = ? readSszResBytes(consensusFork.BlockContents, value) ok( ForkedMaybeBlindedBeaconBlock.init( contents, executionValue, consensusValue)) elif consensusFork >= ConsensusFork.Bellatrix: if blinded: return err("`Eth-Execution-Payload-Blinded` unsupported for " & "`Eth-Consensus-Version`") let contents = ? readSszResBytes(consensusFork.BlockContents, value) ok( ForkedMaybeBlindedBeaconBlock.init( contents, executionValue, consensusValue)) else: if blinded: return err("`Eth-Execution-Payload-Blinded` unsupported for " & "`Eth-Consensus-Version`") let contents = ? readSszResBytes(consensusFork.BlockContents, value) ok(ForkedMaybeBlindedBeaconBlock.init(contents)) else: err("Unsupported Content-Type") proc decodeBytes*[T: DecodeTypes]( t: typedesc[T], value: openArray[byte], contentType: Opt[ContentTypeData] ): RestResult[T] = let mediaType = if contentType.isNone(): ApplicationJsonMediaType else: if isWildCard(contentType.get().mediaType): return err("Incorrect Content-Type") contentType.get().mediaType if mediaType == ApplicationJsonMediaType: try: ok RestJson.decode(value, T, requireAllFields = true, allowUnknownFields = true) except SerializationError as exc: debug "Failed to deserialize REST JSON data", err = exc.formatMsg(""), data = string.fromBytes(value) err("Serialization error") else: err("Content-Type not supported") proc encodeString*(value: string): RestResult[string] = ok(value) proc encodeString*( value: uint64 | SyncCommitteePeriod | Epoch | Slot | CommitteeIndex | SyncSubcommitteeIndex): RestResult[string] = ok(Base10.toString(uint64(value))) proc encodeString*(value: ValidatorSig): RestResult[string] = ok(hexOriginal(toRaw(value))) proc encodeString*(value: GraffitiBytes): RestResult[string] = ok(hexOriginal(distinctBase(value))) proc encodeString*(value: Eth2Digest): RestResult[string] = ok(hexOriginal(value.data)) proc encodeString*(value: ValidatorIdent): RestResult[string] = case value.kind of ValidatorQueryKind.Index: ok(Base10.toString(uint64(value.index))) of ValidatorQueryKind.Key: ok(hexOriginal(toRaw(value.key))) proc encodeString*(value: ValidatorPubKey): RestResult[string] = ok(hexOriginal(toRaw(value))) proc encodeString*(value: StateIdent): RestResult[string] = case value.kind of StateQueryKind.Slot: ok(Base10.toString(uint64(value.slot))) of StateQueryKind.Root: ok(hexOriginal(value.root.data)) of StateQueryKind.Named: case value.value of StateIdentType.Head: ok("head") of StateIdentType.Genesis: ok("genesis") of StateIdentType.Finalized: ok("finalized") of StateIdentType.Justified: ok("justified") proc encodeString*(value: BroadcastValidationType): RestResult[string] = case value of BroadcastValidationType.Gossip: ok("gossip") of BroadcastValidationType.Consensus: ok("consensus") of BroadcastValidationType.ConsensusAndEquivocation: ok("consensus_and_equivocation") proc encodeString*(value: BlockIdent): RestResult[string] = case value.kind of BlockQueryKind.Slot: ok(Base10.toString(uint64(value.slot))) of BlockQueryKind.Root: ok(hexOriginal(value.root.data)) of BlockQueryKind.Named: case value.value of BlockIdentType.Head: ok("head") of BlockIdentType.Genesis: ok("genesis") of BlockIdentType.Finalized: ok("finalized") proc decodeString*(t: typedesc[PeerStateKind], value: string): Result[PeerStateKind, cstring] = case value of "disconnected": ok(PeerStateKind.Disconnected) of "connecting": ok(PeerStateKind.Connecting) of "connected": ok(PeerStateKind.Connected) of "disconnecting": ok(PeerStateKind.Disconnecting) else: err("Incorrect peer's state value") proc encodeString*(value: PeerStateKind): Result[string, cstring] = case value of PeerStateKind.Disconnected: ok("disconnected") of PeerStateKind.Connecting: ok("connecting") of PeerStateKind.Connected: ok("connected") of PeerStateKind.Disconnecting: ok("disconnecting") proc decodeString*(t: typedesc[PeerDirectKind], value: string): Result[PeerDirectKind, cstring] = case value of "inbound": ok(PeerDirectKind.Inbound) of "outbound": ok(PeerDirectKind.Outbound) else: err("Incorrect peer's direction value") proc encodeString*(value: PeerDirectKind): Result[string, cstring] = case value of PeerDirectKind.Inbound: ok("inbound") of PeerDirectKind.Outbound: ok("outbound") proc encodeString*(peerid: PeerId): Result[string, cstring] = ok($peerid) proc decodeString*(t: typedesc[EventTopic], value: string): Result[EventTopic, cstring] = case value of "head": ok(EventTopic.Head) of "block": ok(EventTopic.Block) of "attestation": ok(EventTopic.Attestation) of "voluntary_exit": ok(EventTopic.VoluntaryExit) of "bls_to_execution_change": ok(EventTopic.BLSToExecutionChange) of "proposer_slashing": ok(EventTopic.ProposerSlashing) of "attester_slashing": ok(EventTopic.AttesterSlashing) of "blob_sidecar": ok(EventTopic.BlobSidecar) of "finalized_checkpoint": ok(EventTopic.FinalizedCheckpoint) of "chain_reorg": ok(EventTopic.ChainReorg) of "contribution_and_proof": ok(EventTopic.ContributionAndProof) of "light_client_finality_update": ok(EventTopic.LightClientFinalityUpdate) of "light_client_optimistic_update": ok(EventTopic.LightClientOptimisticUpdate) else: err("Incorrect event's topic value") proc encodeString*(value: set[EventTopic]): Result[string, cstring] = var res: string if EventTopic.Head in value: res.add("head,") if EventTopic.Block in value: res.add("block,") if EventTopic.Attestation in value: res.add("attestation,") if EventTopic.VoluntaryExit in value: res.add("voluntary_exit,") if EventTopic.BLSToExecutionChange in value: res.add("bls_to_execution_change,") if EventTopic.ProposerSlashing in value: res.add("proposer_slashing,") if EventTopic.AttesterSlashing in value: res.add("attester_slashing,") if EventTopic.BlobSidecar in value: res.add("blob_sidecar,") if EventTopic.FinalizedCheckpoint in value: res.add("finalized_checkpoint,") if EventTopic.ChainReorg in value: res.add("chain_reorg,") if EventTopic.ContributionAndProof in value: res.add("contribution_and_proof,") if EventTopic.LightClientFinalityUpdate in value: res.add("light_client_finality_update,") if EventTopic.LightClientOptimisticUpdate in value: res.add("light_client_optimistic_update,") if len(res) == 0: return err("Topics set must not be empty") res.setLen(len(res) - 1) ok(res) proc toList*(value: set[ValidatorFilterKind]): seq[string] = const pendingSet = {ValidatorFilterKind.PendingInitialized, ValidatorFilterKind.PendingQueued} activeSet = {ValidatorFilterKind.ActiveOngoing, ValidatorFilterKind.ActiveExiting, ValidatorFilterKind.ActiveSlashed} exitedSet = {ValidatorFilterKind.ExitedUnslashed, ValidatorFilterKind.ExitedSlashed} withdrawSet = {ValidatorFilterKind.WithdrawalPossible, ValidatorFilterKind.WithdrawalDone} var res: seq[string] v = value template processSet(argSet, argName: untyped): untyped = if argSet * v == argSet: res.add(argName) v.excl(argSet) template processSingle(argSingle, argName): untyped = if argSingle in v: res.add(argName) processSet(pendingSet, "pending") processSet(activeSet, "active") processSet(exitedSet, "exited") processSet(withdrawSet, "withdrawal") processSingle(ValidatorFilterKind.PendingInitialized, "pending_initialized") processSingle(ValidatorFilterKind.PendingQueued, "pending_queued") processSingle(ValidatorFilterKind.ActiveOngoing, "active_ongoing") processSingle(ValidatorFilterKind.ActiveExiting, "active_exiting") processSingle(ValidatorFilterKind.ActiveSlashed, "active_slashed") processSingle(ValidatorFilterKind.ExitedUnslashed, "exited_unslashed") processSingle(ValidatorFilterKind.ExitedSlashed, "exited_slashed") processSingle(ValidatorFilterKind.WithdrawalPossible, "withdrawal_possible") processSingle(ValidatorFilterKind.WithdrawalDone, "withdrawal_done") res proc decodeString*(t: typedesc[ValidatorSig], value: string): Result[ValidatorSig, cstring] = if len(value) != ValidatorSigSize + 2: return err("Incorrect validator signature value length") if value[0] != '0' and value[1] != 'x': return err("Incorrect validator signature encoding") ValidatorSig.fromHex(value) proc decodeString*(t: typedesc[ValidatorPubKey], value: string): Result[ValidatorPubKey, cstring] = if len(value) != ValidatorKeySize + 2: return err("Incorrect validator's key value length") if value[0] != '0' and value[1] != 'x': err("Incorrect validator's key encoding") else: ValidatorPubKey.fromHex(value) proc decodeString*(t: typedesc[GraffitiBytes], value: string): Result[GraffitiBytes, cstring] = try: ok(GraffitiBytes.init(value)) except ValueError: err("Unable to decode graffiti value") proc decodeString*(t: typedesc[string], value: string): Result[string, cstring] = ok(value) proc decodeString*(t: typedesc[Slot], value: string): Result[Slot, cstring] = let res = ? Base10.decode(uint64, value) ok(Slot(res)) proc decodeString*(t: typedesc[Epoch], value: string): Result[Epoch, cstring] = let res = ? Base10.decode(uint64, value) ok(Epoch(res)) proc decodeString*(t: typedesc[SyncCommitteePeriod], value: string): Result[SyncCommitteePeriod, cstring] = let res = ? Base10.decode(uint64, value) ok(SyncCommitteePeriod(res)) proc decodeString*(t: typedesc[uint64], value: string): Result[uint64, cstring] = Base10.decode(uint64, value) proc decodeString*(t: typedesc[StateIdent], value: string): Result[StateIdent, cstring] = if len(value) > 2: if (value[0] == '0') and (value[1] == 'x'): if len(value) != RootHashSize + 2: err("Incorrect state root value length") else: let res = ? parseRoot(value) ok(StateIdent(kind: StateQueryKind.Root, root: res)) elif (value[0] in DecimalSet) and (value[1] in DecimalSet): let res = ? Base10.decode(uint64, value) ok(StateIdent(kind: StateQueryKind.Slot, slot: Slot(res))) else: case value of "head": ok(StateIdent(kind: StateQueryKind.Named, value: StateIdentType.Head)) of "genesis": ok(StateIdent(kind: StateQueryKind.Named, value: StateIdentType.Genesis)) of "finalized": ok(StateIdent(kind: StateQueryKind.Named, value: StateIdentType.Finalized)) of "justified": ok(StateIdent(kind: StateQueryKind.Named, value: StateIdentType.Justified)) else: err("Incorrect state identifier value") else: let res = ? Base10.decode(uint64, value) ok(StateIdent(kind: StateQueryKind.Slot, slot: Slot(res))) proc decodeString*(t: typedesc[BlockIdent], value: string): Result[BlockIdent, cstring] = if len(value) > 2: if (value[0] == '0') and (value[1] == 'x'): if len(value) != RootHashSize + 2: err("Incorrect block root value length") else: let res = ? parseRoot(value) ok(BlockIdent(kind: BlockQueryKind.Root, root: res)) elif (value[0] in DecimalSet) and (value[1] in DecimalSet): let res = ? Base10.decode(uint64, value) ok(BlockIdent(kind: BlockQueryKind.Slot, slot: Slot(res))) else: case value of "head": ok(BlockIdent(kind: BlockQueryKind.Named, value: BlockIdentType.Head)) of "genesis": ok(BlockIdent(kind: BlockQueryKind.Named, value: BlockIdentType.Genesis)) of "finalized": ok(BlockIdent(kind: BlockQueryKind.Named, value: BlockIdentType.Finalized)) else: err("Incorrect block identifier value") else: let res = ? Base10.decode(uint64, value) ok(BlockIdent(kind: BlockQueryKind.Slot, slot: Slot(res))) proc decodeString*(t: typedesc[BroadcastValidationType], value: string): Result[BroadcastValidationType, cstring] = case value of "gossip": ok(BroadcastValidationType.Gossip) of "consensus": ok(BroadcastValidationType.Consensus) of "consensus_and_equivocation": ok(BroadcastValidationType.ConsensusAndEquivocation) else: err("Incorrect broadcast validation type value") proc decodeString*(t: typedesc[ValidatorIdent], value: string): Result[ValidatorIdent, cstring] = if len(value) > 2: if (value[0] == '0') and (value[1] == 'x'): if len(value) != ValidatorKeySize + 2: err("Incorrect validator's key value length") else: let res = ? ValidatorPubKey.fromHex(value) ok(ValidatorIdent(kind: ValidatorQueryKind.Key, key: res)) elif (value[0] in DecimalSet) and (value[1] in DecimalSet): let res = ? Base10.decode(uint64, value) ok(ValidatorIdent(kind: ValidatorQueryKind.Index, index: RestValidatorIndex(res))) else: err("Incorrect validator identifier value") else: let res = ? Base10.decode(uint64, value) ok(ValidatorIdent(kind: ValidatorQueryKind.Index, index: RestValidatorIndex(res))) proc decodeString*(t: typedesc[PeerId], value: string): Result[PeerId, cstring] = PeerId.init(value) proc decodeString*(t: typedesc[CommitteeIndex], value: string): Result[CommitteeIndex, cstring] = let res = ? Base10.decode(uint64, value) CommitteeIndex.init(res) proc decodeString*(t: typedesc[SyncSubcommitteeIndex], value: string): Result[SyncSubcommitteeIndex, cstring] = let res = ? Base10.decode(uint64, value) SyncSubcommitteeIndex.init(res) proc decodeString*(t: typedesc[Eth2Digest], value: string): Result[Eth2Digest, cstring] = if len(value) != RootHashSize + 2: return err("Incorrect root value length") if value[0] != '0' and value[1] != 'x': return err("Incorrect root value encoding") parseRoot(value) proc decodeString*(t: typedesc[ValidatorFilter], value: string): Result[ValidatorFilter, cstring] = case value of "pending_initialized": ok({ValidatorFilterKind.PendingInitialized}) of "pending_queued": ok({ValidatorFilterKind.PendingQueued}) of "active_ongoing": ok({ValidatorFilterKind.ActiveOngoing}) of "active_exiting": ok({ValidatorFilterKind.ActiveExiting}) of "active_slashed": ok({ValidatorFilterKind.ActiveSlashed}) of "exited_unslashed": ok({ValidatorFilterKind.ExitedUnslashed}) of "exited_slashed": ok({ValidatorFilterKind.ExitedSlashed}) of "withdrawal_possible": ok({ValidatorFilterKind.WithdrawalPossible}) of "withdrawal_done": ok({ValidatorFilterKind.WithdrawalDone}) of "pending": ok({ ValidatorFilterKind.PendingInitialized, ValidatorFilterKind.PendingQueued }) of "active": ok({ ValidatorFilterKind.ActiveOngoing, ValidatorFilterKind.ActiveExiting, ValidatorFilterKind.ActiveSlashed }) of "exited": ok({ ValidatorFilterKind.ExitedUnslashed, ValidatorFilterKind.ExitedSlashed }) of "withdrawal": ok({ ValidatorFilterKind.WithdrawalPossible, ValidatorFilterKind.WithdrawalDone }) else: err("Incorrect validator state identifier value") proc decodeString*(t: typedesc[ConsensusFork], value: string): Result[ConsensusFork, cstring] = case toLowerAscii(value) of "phase0": ok(ConsensusFork.Phase0) of "altair": ok(ConsensusFork.Altair) of "bellatrix": ok(ConsensusFork.Bellatrix) of "capella": ok(ConsensusFork.Capella) of "deneb": ok(ConsensusFork.Deneb) else: err("Unsupported or invalid beacon block fork version") proc decodeString*(t: typedesc[EventBeaconBlockObject], value: string): Result[EventBeaconBlockObject, string] = try: ok(RestJson.decode(value, t, requireAllFields = true, allowUnknownFields = true)) except SerializationError as exc: err(exc.formatMsg("")) ## ValidatorIdent proc writeValue*(w: var JsonWriter[RestJson], value: ValidatorIdent) {.raises: [IOError].} = writeValue(w, value.encodeString().get()) proc readValue*(reader: var JsonReader[RestJson], value: var ValidatorIdent) {. raises: [IOError, SerializationError].} = value = decodeString(ValidatorIdent, reader.readValue(string)).valueOr: raise newException(SerializationError, $error) ## RestValidatorRequest proc readValue*(reader: var JsonReader[RestJson], value: var RestValidatorRequest) {. raises: [IOError, SerializationError].} = var statuses: Opt[seq[string]] ids: Opt[seq[string]] for fieldName in readObjectFields(reader): case fieldName of "ids": if ids.isSome(): reader.raiseUnexpectedField("Multiple `ids` fields found", "RestValidatorRequest") ids = Opt.some(reader.readValue(seq[string])) of "statuses": if statuses.isSome(): reader.raiseUnexpectedField("Multiple `statuses` fields found", "RestValidatorRequest") statuses = Opt.some(reader.readValue(seq[string])) else: unrecognizedFieldWarning() let validatorIds = block: # Test for uniqueness of value will be happened on higher layer. if ids.isSome(): var res: seq[ValidatorIdent] for item in ids.get(): let value = decodeString(ValidatorIdent, item).valueOr: reader.raiseUnexpectedValue($error) res.add(value) Opt.some(res) else: Opt.none(seq[ValidatorIdent]) filter = block: if statuses.isSome(): var res: ValidatorFilter for item in statuses.get(): let value = decodeString(ValidatorFilter, item).valueOr: reader.raiseUnexpectedValue($error) # Test for uniqueness of value. if value * res != {}: reader.raiseUnexpectedValue( "The `statuses` array should consist of only unique values") res.incl(value) Opt.some(res) else: Opt.none(ValidatorFilter) value = RestValidatorRequest(ids: validatorIds, status: filter) proc writeValue*(writer: var JsonWriter[RestJson], value: RestValidatorRequest) {.raises: [IOError].} = writer.beginRecord() if value.ids.isSome(): var res: seq[string] for item in value.ids.get(): res.add(item.encodeString().get()) writer.writeField("ids", res) if value.status.isSome(): let res = value.status.get().toList() if len(res) > 0: writer.writeField("statuses", res) writer.endRecord()