mirror of
https://github.com/codex-storage/nim-codex.git
synced 2025-02-26 19:40:40 +00:00
79 lines
2.4 KiB
Nim
79 lines
2.4 KiB
Nim
import os
|
|
import pkg/chronos
|
|
import pkg/questionable
|
|
import pkg/confutils/defs
|
|
import pkg/stew/io2
|
|
|
|
import ../../conf
|
|
import ./backends
|
|
|
|
proc initializeCircomBackend(
|
|
r1csFile: string,
|
|
wasmFile: string,
|
|
zKeyFile: string
|
|
): AnyBackend =
|
|
CircomCompat.init(r1csFile, wasmFile, zKeyFile)
|
|
|
|
proc initializeFromConfig(
|
|
config: CodexConf): ?!AnyBackend =
|
|
if not fileAccessible($config.circomR1cs, {AccessFlags.Read}) and
|
|
endsWith($config.circomR1cs, ".r1cs"):
|
|
return failure("Circom R1CS file not accessible")
|
|
|
|
if not fileAccessible($config.circomWasm, {AccessFlags.Read}) and
|
|
endsWith($config.circomWasm, ".wasm"):
|
|
return failure("Circom wasm file not accessible")
|
|
|
|
if not fileAccessible($config.circomZkey, {AccessFlags.Read}) and
|
|
endsWith($config.circomZkey, ".zkey"):
|
|
return failure("Circom zkey file not accessible")
|
|
|
|
success(initializeCircomBackend(
|
|
$config.circomR1cs,
|
|
$config.circomWasm,
|
|
$config.circomZkey))
|
|
|
|
proc r1csFilePath(config: CodexConf): string =
|
|
config.dataDir / "circuit.r1cs"
|
|
|
|
proc wasmFilePath(config: CodexConf): string =
|
|
config.dataDir / "circuit.wasm"
|
|
|
|
proc zkeyFilePath(config: CodexConf): string =
|
|
config.dataDir / "circuit.zkey"
|
|
|
|
proc initializeFromCeremonyFiles(config: CodexConf): ?!AnyBackend =
|
|
if fileExists(config.r1csFilePath) and
|
|
fileExists(config.wasmFilePath) and
|
|
fileExists(config.zkeyFilePath):
|
|
return success(initializeCircomBackend(
|
|
config.r1csFilePath,
|
|
config.wasmFilePath,
|
|
config.zkeyFilePath))
|
|
|
|
failure("Ceremony files not found")
|
|
|
|
proc initializeFromCeremonyUrl(
|
|
config: CodexConf,
|
|
proofCeremonyUrl: ?string): Future[?!AnyBackend] {.async.} =
|
|
|
|
# download the ceremony url
|
|
# unzip it
|
|
|
|
without backend =? initializeFromCeremonyFiles(config), err:
|
|
return failure(err)
|
|
return success(backend)
|
|
|
|
proc initializeBackend*(
|
|
config: CodexConf,
|
|
proofCeremonyUrl: ?string): Future[?!AnyBackend] {.async.} =
|
|
|
|
without backend =? initializeFromConfig(config), cliErr:
|
|
info "Could not initialize prover backend from CLI options...", msg = cliErr.msg
|
|
without backend =? initializeFromCeremonyFiles(config), localErr:
|
|
info "Could not initialize prover backend from local files...", msg = localErr.msg
|
|
without backend =? (await initializeFromCeremonyUrl(config, proofCeremonyUrl)), urlErr:
|
|
warn "Could not initialize prover backend from ceremony url...", msg = urlErr.msg
|
|
return failure(urlErr)
|
|
return success(backend)
|