368 lines
13 KiB
Nim
368 lines
13 KiB
Nim
import
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std/[typetraits],
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stew/[results, base10, byteutils],
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chronicles, presto,
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faststreams/[outputs],
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serialization, json_serialization,
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nimcrypto/utils as ncrutils,
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../beacon_node_common, ../networking/eth2_network,
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../consensus_object_pools/[blockchain_dag, exit_pool],
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../spec/[crypto, digest, datatypes],
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../ssz/merkleization,
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rest_utils
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export json_serialization
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Json.createFlavor RestJson
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proc jsonResponseWRoot*(t: typedesc[RestApiResponse],
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data: auto,
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dependent_root: Eth2Digest): RestApiResponse =
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var stream = memoryOutput()
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var writer = JsonWriter[RestJson].init(stream)
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writer.beginRecord()
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writer.writeField("dependent_root", dependent_root)
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writer.writeField("data", data)
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writer.endRecord()
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RestApiResponse.response(stream.getOutput(seq[byte]), Http200,
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"application/json")
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proc jsonResponse*(t: typedesc[RestApiResponse],
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data: auto): RestApiResponse =
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var stream = memoryOutput()
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var writer = JsonWriter[RestJson].init(stream)
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writer.beginRecord()
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writer.writeField("data", data)
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writer.endRecord()
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RestApiResponse.response(stream.getOutput(seq[byte]), Http200,
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"application/json")
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proc jsonResponseWMeta*(t: typedesc[RestApiResponse],
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data: auto, meta: auto): RestApiResponse =
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var stream = memoryOutput()
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var writer = JsonWriter[RestJson].init(stream)
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writer.beginRecord()
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writer.writeField("data", data)
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writer.writeField("meta", meta)
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writer.endRecord()
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RestApiResponse.response(stream.getOutput(seq[byte]), Http200,
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"application/json")
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proc jsonError*(t: typedesc[RestApiResponse], status: HttpCode = Http200,
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msg: string = "", stacktrace: string = ""): RestApiResponse =
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let data =
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block:
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var stream = memoryOutput()
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var writer = JsonWriter[RestJson].init(stream)
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writer.beginRecord()
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writer.writeField("code", Base10.toString(uint64(status.toInt())))
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writer.writeField("message", msg)
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if len(stacktrace) > 0:
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writer.writeField("stacktrace", stacktrace)
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writer.endRecord()
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stream.getOutput(string)
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RestApiResponse.error(status, data, "application/json")
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proc jsonErrorList*(t: typedesc[RestApiResponse],
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status: HttpCode = Http200,
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msg: string = "", failures: auto): RestApiResponse =
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let data =
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block:
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var stream = memoryOutput()
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var writer = JsonWriter[RestJson].init(stream)
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writer.beginRecord()
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writer.writeField("code", Base10.toString(uint64(status.toInt())))
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writer.writeField("message", msg)
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writer.writeField("failures", failures)
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writer.endRecord()
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stream.getOutput(string)
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RestApiResponse.error(status, data, "application/json")
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template hexCompressed(data: openarray[byte]): string =
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let offset =
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block:
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var res = 0
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for i in 0 ..< len(data):
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if data[i] != 0x00'u8:
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res = i
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break
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res
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"0x" & ncrutils.toHex(data.toOpenArray(offset, len(data) - 1), true)
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template hexOriginal(data: openarray[byte]): string =
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"0x" & ncrutils.toHex(data, true)
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## uint64
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proc writeValue*(w: var JsonWriter[RestJson], value: uint64) =
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writeValue(w, Base10.toString(value))
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proc readValue*(reader: var JsonReader[RestJson], value: var uint64) {.
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raises: [IOError, SerializationError, Defect].} =
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let svalue = reader.readValue(string)
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let res = Base10.decode(uint64, svalue)
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if res.isOk():
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value = res.get()
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else:
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reader.raiseUnexpectedValue($res.error())
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## Slot
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proc writeValue*(writer: var JsonWriter[RestJson], value: Slot) {.
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raises: [IOError, Defect].} =
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writeValue(writer, Base10.toString(uint64(value)))
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proc readValue*(reader: var JsonReader[RestJson], value: var Slot) {.
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raises: [IOError, SerializationError, Defect].} =
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let svalue = reader.readValue(string)
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let res = Base10.decode(uint64, svalue)
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if res.isOk():
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value = Slot(res.get())
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else:
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reader.raiseUnexpectedValue($res.error())
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## Epoch
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proc writeValue*(writer: var JsonWriter[RestJson], value: Epoch) {.
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raises: [IOError, Defect].} =
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writeValue(writer, Base10.toString(uint64(value)))
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proc readValue*(reader: var JsonReader[RestJson], value: var Epoch) {.
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raises: [IOError, SerializationError, Defect].} =
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let svalue = reader.readValue(string)
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let res = Base10.decode(uint64, svalue)
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if res.isOk():
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value = Epoch(res.get())
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else:
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reader.raiseUnexpectedValue($res.error())
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## ValidatorIndex
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proc writeValue*(writer: var JsonWriter[RestJson], value: ValidatorIndex) {.
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raises: [IOError, Defect].} =
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writeValue(writer, Base10.toString(uint64(value)))
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proc readValue*(reader: var JsonReader[RestJson], value: var ValidatorIndex) {.
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raises: [IOError, SerializationError, Defect].} =
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let svalue = reader.readValue(string)
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let res = Base10.decode(uint64, svalue)
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if res.isOk():
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let v = res.get()
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if v < VALIDATOR_REGISTRY_LIMIT:
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value = ValidatorIndex(v)
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else:
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reader.raiseUnexpectedValue(
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"Validator index is bigger then VALIDATOR_REGISTRY_LIMIT")
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else:
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reader.raiseUnexpectedValue($res.error())
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## RestValidatorIndex
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proc writeValue*(writer: var JsonWriter[RestJson],
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value: RestValidatorIndex) {.
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raises: [IOError, Defect].} =
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writeValue(writer, Base10.toString(uint64(value)))
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proc readValue*(reader: var JsonReader[RestJson],
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value: var RestValidatorIndex) {.
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raises: [IOError, SerializationError, Defect].} =
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let svalue = reader.readValue(string)
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let res = Base10.decode(uint64, svalue)
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if res.isOk():
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let v = res.get()
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value = RestValidatorIndex(v)
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else:
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reader.raiseUnexpectedValue($res.error())
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## CommitteeIndex
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proc writeValue*(writer: var JsonWriter[RestJson], value: CommitteeIndex) {.
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raises: [IOError, Defect].} =
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writeValue(writer, Base10.toString(uint64(value)))
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proc readValue*(reader: var JsonReader[RestJson], value: var CommitteeIndex) {.
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raises: [IOError, SerializationError, Defect].} =
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let svalue = reader.readValue(string)
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let res = Base10.decode(uint64, svalue)
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if res.isOk():
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value = CommitteeIndex(res.get())
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else:
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reader.raiseUnexpectedValue($res.error())
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## ValidatorSig
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proc writeValue*(writer: var JsonWriter[RestJson], value: ValidatorSig) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(toRaw(value)))
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proc readValue*(reader: var JsonReader[RestJson], value: var ValidatorSig) {.
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raises: [IOError, SerializationError, Defect].} =
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let hexValue = reader.readValue(string)
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let res = ValidatorSig.fromHex(hexValue)
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if res.isOk():
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value = res.get()
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else:
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reader.raiseUnexpectedValue($res.error())
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## TrustedSig
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proc writeValue*(writer: var JsonWriter[RestJson], value: TrustedSig) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(toRaw(value)))
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proc readValue*(reader: var JsonReader[RestJson], value: var TrustedSig) {.
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raises: [IOError, SerializationError, Defect].} =
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let hexValue = reader.readValue(string)
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let res = ValidatorSig.fromHex(hexValue)
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if res.isOk():
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value = cast[TrustedSig](res.get())
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else:
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reader.raiseUnexpectedValue($res.error())
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## ValidatorPubKey
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proc writeValue*(writer: var JsonWriter[RestJson], value: ValidatorPubKey) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(toRaw(value)))
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proc readValue*(reader: var JsonReader[RestJson], value: var ValidatorPubKey) {.
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raises: [IOError, SerializationError, Defect].} =
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let hexValue = reader.readValue(string)
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let res = ValidatorPubKey.fromHex(hexValue)
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if res.isOk():
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value = res.get()
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else:
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reader.raiseUnexpectedValue($res.error())
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## BitSeq
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proc readValue*(reader: var JsonReader[RestJson], value: var BitSeq) {.
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raises: [IOError, SerializationError, Defect].} =
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try:
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value = BitSeq hexToSeqByte(reader.readValue(string))
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except ValueError:
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raiseUnexpectedValue(reader, "A BitSeq value should be a valid hex string")
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proc writeValue*(writer: var JsonWriter[RestJson], value: BitSeq) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexCompressed(value.bytes()))
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## BitList
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proc readValue*(reader: var JsonReader[RestJson], value: var BitList) =
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type T = type(value)
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value = T readValue(reader, BitSeq)
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proc writeValue*(writer: var JsonWriter[RestJson], value: BitList) =
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writeValue(writer, BitSeq value)
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## Eth2Digest
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proc readValue*(reader: var JsonReader[RestJson], value: var Eth2Digest) {.
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raises: [IOError, SerializationError, Defect].} =
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try:
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hexToByteArray(reader.readValue(string), value.data)
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except ValueError:
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raiseUnexpectedValue(reader,
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"Eth2Digest value should be a valid hex string")
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proc writeValue*(writer: var JsonWriter[RestJson], value: Eth2Digest) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(value.data))
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## BloomLogs
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proc readValue*(reader: var JsonReader[RestJson], value: var BloomLogs) {.
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raises: [IOError, SerializationError, Defect].} =
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try:
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hexToByteArray(reader.readValue(string), value.data)
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except ValueError:
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raiseUnexpectedValue(reader,
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"BloomLogs value should be a valid hex string")
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proc writeValue*(writer: var JsonWriter[RestJson], value: BloomLogs) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(value.data))
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## HashArray
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proc readValue*(reader: var JsonReader[RestJson], value: var HashArray) {.
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raises: [IOError, SerializationError, Defect].} =
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readValue(reader, value.data)
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proc writeValue*(writer: var JsonWriter[RestJson], value: HashArray) {.
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raises: [IOError, Defect].} =
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writeValue(writer, value.data)
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## HashList
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proc readValue*(reader: var JsonReader[RestJson], value: var HashList) {.
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raises: [IOError, SerializationError, Defect].} =
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readValue(reader, value.data)
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proc writeValue*(writer: var JsonWriter[RestJson], value: HashList) {.
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raises: [IOError, Defect].} =
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writeValue(writer, value.data)
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## Eth1Address
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proc readValue*(reader: var JsonReader[RestJson], value: var Eth1Address) {.
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raises: [IOError, SerializationError, Defect].} =
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try:
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hexToByteArray(reader.readValue(string), distinctBase(value))
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except ValueError:
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raiseUnexpectedValue(reader,
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"Eth1Address value should be a valid hex string")
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proc writeValue*(writer: var JsonWriter[RestJson], value: Eth1Address) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(distinctBase(value)))
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## Version
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proc readValue*(reader: var JsonReader[RestJson], value: var Version) {.
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raises: [IOError, SerializationError, Defect].} =
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try:
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hexToByteArray(reader.readValue(string), distinctBase(value))
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except ValueError:
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raiseUnexpectedValue(reader,
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"Version value should be a valid hex string")
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proc writeValue*(writer: var JsonWriter[RestJson], value: Version) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(distinctBase(value)))
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## ForkDigest
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proc readValue*(reader: var JsonReader[RestJson], value: var ForkDigest) {.
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raises: [IOError, SerializationError, Defect].} =
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try:
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hexToByteArray(reader.readValue(string), distinctBase(value))
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except ValueError:
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raiseUnexpectedValue(reader,
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"ForkDigest value should be a valid hex string")
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proc writeValue*(writer: var JsonWriter[RestJson], value: ForkDigest) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(distinctBase(value)))
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## GraffitiBytes
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proc readValue*(reader: var JsonReader[RestJson], value: var GraffitiBytes) {.
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raises: [IOError, SerializationError, Defect].} =
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try:
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hexToByteArray(reader.readValue(string), distinctBase(value))
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except ValueError:
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raiseUnexpectedValue(reader,
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"GraffitiBytes value should be a valid hex string")
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proc writeValue*(writer: var JsonWriter[RestJson], value: GraffitiBytes) {.
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raises: [IOError, Defect].} =
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writeValue(writer, hexOriginal(distinctBase(value)))
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proc decodeBody*[T](t: typedesc[T],
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body: ContentBody): Result[T, cstring] =
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if body.contentType != "application/json":
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return err("Unsupported content type")
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let data =
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try:
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RestJson.decode(cast[string](body.data), T)
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except SerializationError as exc:
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return err("Unable to deserialize data")
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except CatchableError as exc:
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return err("Unexpected deserialization error")
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ok(data)
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RestJson.useCustomSerialization(BeaconState.justification_bits):
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read:
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let s = reader.readValue(string)
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if s.len != 4:
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raiseUnexpectedValue(reader, "A string with 4 characters expected")
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try:
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hexToByteArray(s, 1)[0]
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except ValueError:
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raiseUnexpectedValue(reader,
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"The `justification_bits` value must be a hex string")
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write:
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writer.writeValue "0x" & toHex([value])
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