Ole André Vadla Ravnås
39aa24f773
WelcomeModel, CollaborationSession, and AuthFailure all hand-rolled String(describing:) variants to dodge NSError bridging or the enum-case form. With Frida.Error now formatting itself, these collapse to plain localizedDescription / String(describing:).
45 lines
1.9 KiB
Swift
45 lines
1.9 KiB
Swift
import Foundation
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import Frida
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/// Wire-format sibling of `luma-server`'s `AuthFailure`. The portal's
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/// authentication delegate packs this JSON envelope into the thrown error
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/// message so clients can tell an auth rejection (domain == "auth") apart
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/// from a transient upstream issue (domain == "github").
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public struct AuthFailure: Sendable, Decodable, Swift.Error {
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public let domain: String
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public let code: String
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public let message: String
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public init(domain: String, code: String, message: String) {
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self.domain = domain
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self.code = code
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self.message = message
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}
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public var isAuthRejection: Bool { domain == "auth" }
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/// Marker the server prefixes its base64-encoded JSON envelope with.
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/// Must match `LumaServer.AuthFailure.marker`.
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private static let marker = "luma-auth:"
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private static let base64Alphabet: Set<Character> = {
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var set = Set<Character>("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=")
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return set
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}()
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public static func fromError(_ error: any Swift.Error) -> AuthFailure? {
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// The portal's auth delegate tags its JSON envelope with a
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// `luma-auth:<base64>` sentinel. Any wrapping layers (Frida's
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// client-side transport re-stringifies the error one or more
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// times on its way up) can't corrupt the base64 alphabet, so we
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// just scan for the marker and decode the payload up to the
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// first non-base64 byte.
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let text = String(describing: error)
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guard let markerRange = text.range(of: marker) else { return nil }
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let tail = text[markerRange.upperBound...]
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let base64End = tail.firstIndex { !base64Alphabet.contains($0) } ?? tail.endIndex
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let encoded = String(tail[..<base64End])
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guard let data = Data(base64Encoded: encoded) else { return nil }
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return try? JSONDecoder().decode(AuthFailure.self, from: data)
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}
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}
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