Implement new snode pool updating method
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@ -13,7 +13,7 @@ enum ProofOfWork {
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let payload = payloadAsString.bytes
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// Calculate target
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let numerator = UInt64.max
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let difficulty = UInt64(SnodeAPI.powDifficulty)
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let difficulty = UInt64(1)
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let totalSize = UInt64(payload.count + nonceSize)
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let ttlInSeconds = ttl / 1000
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let denominator = difficulty * (totalSize + (ttlInSeconds * totalSize) / UInt64(UInt16.max))
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@ -33,6 +33,7 @@ public final class SnodeAPI : NSObject {
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case generic
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case clockOutOfSync
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case snodePoolUpdatingFailed
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case inconsistentSnodePools
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// ONS
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case decryptionFailed
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case hashingFailed
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@ -43,6 +44,7 @@ public final class SnodeAPI : NSObject {
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case .generic: return "An error occurred."
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case .clockOutOfSync: return "Your clock is out of sync with the Service Node network. Please check that your device's clock is set to automatic time."
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case .snodePoolUpdatingFailed: return "Failed to update the Service Node pool."
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case .inconsistentSnodePools: return "Received inconsistent Service Node pool information from the Service Node network."
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// ONS
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case .decryptionFailed: return "Couldn't decrypt ONS name."
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case .hashingFailed: return "Couldn't compute ONS name hash."
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@ -225,7 +227,31 @@ public final class SnodeAPI : NSObject {
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}
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private static func getSnodePoolFromSnode() -> Promise<Set<Snode>> {
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return Promise(error: Error.generic)
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return getSnodePool().then2 { snodePool -> Promise<Set<Snode>> in
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var snodePool = snodePool
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var snodes: Set<Snode> = []
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(0..<3).forEach { _ in
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let snode = snodePool.randomElement()!
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snodePool.remove(snode)
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snodes.insert(snode)
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}
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let rawSnodePoolPromises: [Promise<Set<Snode>>] = snodes.map { snode in
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return attempt(maxRetryCount: 4, recoveringOn: Threading.workQueue) {
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return invoke(.getAllSnodes, on: snode, parameters: [:]).map2 { rawResponse in
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return parseSnodes(from: rawResponse)
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}
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}
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}
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return when(fulfilled: rawSnodePoolPromises).map2 { results in
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var result: Set<Snode> = results[0]
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results.forEach { result = result.union($0) }
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if result.count > 196 { // We want the snodes to agree on at least this many snodes
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return result
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} else {
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throw Error.inconsistentSnodePools
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}
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}
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}
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}
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// MARK: Public API
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