gh-XcodesOrg-XcodesApp/Xcodes/Backend/Aria2CError.swift
2021-01-08 17:22:38 -07:00

125 lines
4.5 KiB
Swift

import Foundation
/// A LocalizedError that represents a non-zero exit code from running aria2c.
struct Aria2CError: LocalizedError {
var code: Code
init?(exitStatus: Int32) {
guard let code = Code(rawValue: exitStatus) else { return nil }
self.code = code
}
var errorDescription: String? {
"aria2c error: \(code.description)"
}
// https://github.com/aria2/aria2/blob/master/src/error_code.h
enum Code: Int32, CustomStringConvertible {
case undefined = -1
// Ignoring, not an error
// case finished = 0
case unknownError = 1
case timeOut
case resourceNotFound
case maxFileNotFound
case tooSlowDownloadSpeed
case networkProblem
case inProgress
case cannotResume
case notEnoughDiskSpace
case pieceLengthChanged
case duplicateDownload
case duplicateInfoHash
case fileAlreadyExists
case fileRenamingFailed
case fileOpenError
case fileCreateError
case fileIoError
case dirCreateError
case nameResolveError
case metalinkParseError
case ftpProtocolError
case httpProtocolError
case httpTooManyRedirects
case httpAuthFailed
case bencodeParseError
case bittorrentParseError
case magnetParseError
case optionError
case httpServiceUnavailable
case jsonParseError
case removed
case checksumError
var description: String {
switch self {
case .undefined:
return "Undefined"
case .unknownError:
return "Unknown error"
case .timeOut:
return "Timed out"
case .resourceNotFound:
return "Resource not found"
case .maxFileNotFound:
return "Maximum number of file not found errors reached"
case .tooSlowDownloadSpeed:
return "Download speed too slow"
case .networkProblem:
return "Network problem"
case .inProgress:
return "Unfinished downloads in progress"
case .cannotResume:
return "Remote server did not support resume when resume was required to complete download"
case .notEnoughDiskSpace:
return "Not enough disk space available"
case .pieceLengthChanged:
return "Piece length was different from one in .aria2 control file"
case .duplicateDownload:
return "Duplicate download"
case .duplicateInfoHash:
return "Duplicate info hash torrent"
case .fileAlreadyExists:
return "File already exists"
case .fileRenamingFailed:
return "Renaming file failed"
case .fileOpenError:
return "Could not open existing file"
case .fileCreateError:
return "Could not create new file or truncate existing file"
case .fileIoError:
return "File I/O error"
case .dirCreateError:
return "Could not create directory"
case .nameResolveError:
return "Name resolution failed"
case .metalinkParseError:
return "Could not parse Metalink document"
case .ftpProtocolError:
return "FTP command failed"
case .httpProtocolError:
return "HTTP response header was bad or unexpected"
case .httpTooManyRedirects:
return "Too many redirects occurred"
case .httpAuthFailed:
return "HTTP authorization failed"
case .bencodeParseError:
return "Could not parse bencoded file (usually \".torrent\" file)"
case .bittorrentParseError:
return "\".torrent\" file was corrupted or missing information"
case .magnetParseError:
return "Magnet URI was bad"
case .optionError:
return "Bad/unrecognized option was given or unexpected option argument was given"
case .httpServiceUnavailable:
return "HTTP service unavailable"
case .jsonParseError:
return "Could not parse JSON-RPC request"
case .removed:
return "Reserved. Not used."
case .checksumError:
return "Checksum validation failed"
}
}
}
}