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// AFError.swift
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//
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// Copyright (c) 2014-2018 Alamofire Software Foundation (http://alamofire.org/)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import Foundation
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/// `AFError` is the error type returned by Alamofire. It encompasses a few different types of errors, each with
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/// their own associated reasons.
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public enum AFError: Error {
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/// The underlying reason the `.multipartEncodingFailed` error occurred.
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public enum MultipartEncodingFailureReason {
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/// The `fileURL` provided for reading an encodable body part isn't a file `URL`.
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case bodyPartURLInvalid(url: URL)
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/// The filename of the `fileURL` provided has either an empty `lastPathComponent` or `pathExtension.
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case bodyPartFilenameInvalid(in: URL)
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/// The file at the `fileURL` provided was not reachable.
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case bodyPartFileNotReachable(at: URL)
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/// Attempting to check the reachability of the `fileURL` provided threw an error.
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case bodyPartFileNotReachableWithError(atURL: URL, error: Error)
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/// The file at the `fileURL` provided is actually a directory.
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case bodyPartFileIsDirectory(at: URL)
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/// The size of the file at the `fileURL` provided was not returned by the system.
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case bodyPartFileSizeNotAvailable(at: URL)
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/// The attempt to find the size of the file at the `fileURL` provided threw an error.
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case bodyPartFileSizeQueryFailedWithError(forURL: URL, error: Error)
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/// An `InputStream` could not be created for the provided `fileURL`.
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case bodyPartInputStreamCreationFailed(for: URL)
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/// An `OutputStream` could not be created when attempting to write the encoded data to disk.
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case outputStreamCreationFailed(for: URL)
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/// The encoded body data could not be written to disk because a file already exists at the provided `fileURL`.
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case outputStreamFileAlreadyExists(at: URL)
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/// The `fileURL` provided for writing the encoded body data to disk is not a file `URL`.
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case outputStreamURLInvalid(url: URL)
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/// The attempt to write the encoded body data to disk failed with an underlying error.
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case outputStreamWriteFailed(error: Error)
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/// The attempt to read an encoded body part `InputStream` failed with underlying system error.
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case inputStreamReadFailed(error: Error)
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}
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/// Represents unexpected input stream length that occur when encoding the `MultipartFormData`. Instances will be
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/// embedded within an `AFError.multipartEncodingFailed` `.inputStreamReadFailed` case.
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public struct UnexpectedInputStreamLength: Error {
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/// The expected byte count to read.
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public var bytesExpected: UInt64
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/// The actual byte count read.
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public var bytesRead: UInt64
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}
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/// The underlying reason the `.parameterEncodingFailed` error occurred.
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public enum ParameterEncodingFailureReason {
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/// The `URLRequest` did not have a `URL` to encode.
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case missingURL
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/// JSON serialization failed with an underlying system error during the encoding process.
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case jsonEncodingFailed(error: Error)
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/// Custom parameter encoding failed due to the associated `Error`.
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case customEncodingFailed(error: Error)
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}
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/// The underlying reason the `.parameterEncoderFailed` error occurred.
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public enum ParameterEncoderFailureReason {
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/// Possible missing components.
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public enum RequiredComponent {
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/// The `URL` was missing or unable to be extracted from the passed `URLRequest` or during encoding.
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case url
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/// The `HTTPMethod` could not be extracted from the passed `URLRequest`.
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case httpMethod(rawValue: String)
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}
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/// A `RequiredComponent` was missing during encoding.
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case missingRequiredComponent(RequiredComponent)
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/// The underlying encoder failed with the associated error.
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case encoderFailed(error: Error)
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}
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/// The underlying reason the `.responseValidationFailed` error occurred.
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public enum ResponseValidationFailureReason {
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/// The data file containing the server response did not exist.
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case dataFileNil
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/// The data file containing the server response at the associated `URL` could not be read.
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case dataFileReadFailed(at: URL)
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/// The response did not contain a `Content-Type` and the `acceptableContentTypes` provided did not contain a
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/// wildcard type.
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case missingContentType(acceptableContentTypes: [String])
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/// The response `Content-Type` did not match any type in the provided `acceptableContentTypes`.
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case unacceptableContentType(acceptableContentTypes: [String], responseContentType: String)
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/// The response status code was not acceptable.
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case unacceptableStatusCode(code: Int)
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/// Custom response validation failed due to the associated `Error`.
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case customValidationFailed(error: Error)
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}
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/// The underlying reason the response serialization error occurred.
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public enum ResponseSerializationFailureReason {
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/// The server response contained no data or the data was zero length.
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case inputDataNilOrZeroLength
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/// The file containing the server response did not exist.
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case inputFileNil
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/// The file containing the server response could not be read from the associated `URL`.
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case inputFileReadFailed(at: URL)
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/// String serialization failed using the provided `String.Encoding`.
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case stringSerializationFailed(encoding: String.Encoding)
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/// JSON serialization failed with an underlying system error.
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case jsonSerializationFailed(error: Error)
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/// A `DataDecoder` failed to decode the response due to the associated `Error`.
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case decodingFailed(error: Error)
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/// A custom response serializer failed due to the associated `Error`.
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case customSerializationFailed(error: Error)
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/// Generic serialization failed for an empty response that wasn't type `Empty` but instead the associated type.
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case invalidEmptyResponse(type: String)
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}
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#if !(os(Linux) || os(Windows))
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/// Underlying reason a server trust evaluation error occurred.
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public enum ServerTrustFailureReason {
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/// The output of a server trust evaluation.
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public struct Output {
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/// The host for which the evaluation was performed.
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public let host: String
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/// The `SecTrust` value which was evaluated.
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public let trust: SecTrust
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/// The `OSStatus` of evaluation operation.
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public let status: OSStatus
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/// The result of the evaluation operation.
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public let result: SecTrustResultType
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/// Creates an `Output` value from the provided values.
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init(_ host: String, _ trust: SecTrust, _ status: OSStatus, _ result: SecTrustResultType) {
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self.host = host
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self.trust = trust
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self.status = status
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self.result = result
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}
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}
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/// No `ServerTrustEvaluator` was found for the associated host.
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case noRequiredEvaluator(host: String)
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/// No certificates were found with which to perform the trust evaluation.
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case noCertificatesFound
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/// No public keys were found with which to perform the trust evaluation.
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case noPublicKeysFound
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/// During evaluation, application of the associated `SecPolicy` failed.
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case policyApplicationFailed(trust: SecTrust, policy: SecPolicy, status: OSStatus)
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/// During evaluation, setting the associated anchor certificates failed.
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case settingAnchorCertificatesFailed(status: OSStatus, certificates: [SecCertificate])
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/// During evaluation, creation of the revocation policy failed.
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case revocationPolicyCreationFailed
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/// `SecTrust` evaluation failed with the associated `Error`, if one was produced.
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case trustEvaluationFailed(error: Error?)
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/// Default evaluation failed with the associated `Output`.
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case defaultEvaluationFailed(output: Output)
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/// Host validation failed with the associated `Output`.
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case hostValidationFailed(output: Output)
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/// Revocation check failed with the associated `Output` and options.
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case revocationCheckFailed(output: Output, options: RevocationTrustEvaluator.Options)
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/// Certificate pinning failed.
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case certificatePinningFailed(host: String, trust: SecTrust, pinnedCertificates: [SecCertificate], serverCertificates: [SecCertificate])
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/// Public key pinning failed.
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case publicKeyPinningFailed(host: String, trust: SecTrust, pinnedKeys: [SecKey], serverKeys: [SecKey])
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/// Custom server trust evaluation failed due to the associated `Error`.
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case customEvaluationFailed(error: Error)
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}
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#endif
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/// The underlying reason the `.urlRequestValidationFailed`
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public enum URLRequestValidationFailureReason {
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/// URLRequest with GET method had body data.
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case bodyDataInGETRequest(Data)
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}
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/// `UploadableConvertible` threw an error in `createUploadable()`.
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case createUploadableFailed(error: Error)
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/// `URLRequestConvertible` threw an error in `asURLRequest()`.
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case createURLRequestFailed(error: Error)
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/// `SessionDelegate` threw an error while attempting to move downloaded file to destination URL.
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case downloadedFileMoveFailed(error: Error, source: URL, destination: URL)
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/// `Request` was explicitly cancelled.
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case explicitlyCancelled
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/// `URLConvertible` type failed to create a valid `URL`.
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case invalidURL(url: URLConvertible)
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/// Multipart form encoding failed.
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case multipartEncodingFailed(reason: MultipartEncodingFailureReason)
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/// `ParameterEncoding` threw an error during the encoding process.
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case parameterEncodingFailed(reason: ParameterEncodingFailureReason)
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/// `ParameterEncoder` threw an error while running the encoder.
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case parameterEncoderFailed(reason: ParameterEncoderFailureReason)
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/// `RequestAdapter` threw an error during adaptation.
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case requestAdaptationFailed(error: Error)
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/// `RequestRetrier` threw an error during the request retry process.
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case requestRetryFailed(retryError: Error, originalError: Error)
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/// Response validation failed.
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case responseValidationFailed(reason: ResponseValidationFailureReason)
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/// Response serialization failed.
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case responseSerializationFailed(reason: ResponseSerializationFailureReason)
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#if !(os(Linux) || os(Windows))
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/// `ServerTrustEvaluating` instance threw an error during trust evaluation.
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case serverTrustEvaluationFailed(reason: ServerTrustFailureReason)
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#endif
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/// `Session` which issued the `Request` was deinitialized, most likely because its reference went out of scope.
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case sessionDeinitialized
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/// `Session` was explicitly invalidated, possibly with the `Error` produced by the underlying `URLSession`.
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case sessionInvalidated(error: Error?)
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/// `URLSessionTask` completed with error.
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case sessionTaskFailed(error: Error)
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/// `URLRequest` failed validation.
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case urlRequestValidationFailed(reason: URLRequestValidationFailureReason)
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}
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extension Error {
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/// Returns the instance cast as an `AFError`.
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public var asAFError: AFError? {
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self as? AFError
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}
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/// Returns the instance cast as an `AFError`. If casting fails, a `fatalError` with the specified `message` is thrown.
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public func asAFError(orFailWith message: @autoclosure () -> String, file: StaticString = #file, line: UInt = #line) -> AFError {
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guard let afError = self as? AFError else {
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fatalError(message(), file: file, line: line)
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}
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return afError
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}
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/// Casts the instance as `AFError` or returns `defaultAFError`
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func asAFError(or defaultAFError: @autoclosure () -> AFError) -> AFError {
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self as? AFError ?? defaultAFError()
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}
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}
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// MARK: - Error Booleans
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extension AFError {
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/// Returns whether the instance is `.sessionDeinitialized`.
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public var isSessionDeinitializedError: Bool {
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if case .sessionDeinitialized = self { return true }
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return false
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}
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/// Returns whether the instance is `.sessionInvalidated`.
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public var isSessionInvalidatedError: Bool {
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if case .sessionInvalidated = self { return true }
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return false
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}
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/// Returns whether the instance is `.explicitlyCancelled`.
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public var isExplicitlyCancelledError: Bool {
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if case .explicitlyCancelled = self { return true }
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return false
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}
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/// Returns whether the instance is `.invalidURL`.
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public var isInvalidURLError: Bool {
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if case .invalidURL = self { return true }
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return false
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}
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/// Returns whether the instance is `.parameterEncodingFailed`. When `true`, the `underlyingError` property will
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/// contain the associated value.
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public var isParameterEncodingError: Bool {
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if case .parameterEncodingFailed = self { return true }
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return false
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}
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/// Returns whether the instance is `.parameterEncoderFailed`. When `true`, the `underlyingError` property will
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/// contain the associated value.
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public var isParameterEncoderError: Bool {
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if case .parameterEncoderFailed = self { return true }
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return false
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}
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/// Returns whether the instance is `.multipartEncodingFailed`. When `true`, the `url` and `underlyingError`
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/// properties will contain the associated values.
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public var isMultipartEncodingError: Bool {
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if case .multipartEncodingFailed = self { return true }
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return false
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}
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/// Returns whether the instance is `.requestAdaptationFailed`. When `true`, the `underlyingError` property will
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/// contain the associated value.
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public var isRequestAdaptationError: Bool {
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if case .requestAdaptationFailed = self { return true }
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return false
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}
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/// Returns whether the instance is `.responseValidationFailed`. When `true`, the `acceptableContentTypes`,
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/// `responseContentType`, `responseCode`, and `underlyingError` properties will contain the associated values.
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public var isResponseValidationError: Bool {
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if case .responseValidationFailed = self { return true }
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return false
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}
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/// Returns whether the instance is `.responseSerializationFailed`. When `true`, the `failedStringEncoding` and
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/// `underlyingError` properties will contain the associated values.
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public var isResponseSerializationError: Bool {
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if case .responseSerializationFailed = self { return true }
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return false
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}
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#if !(os(Linux) || os(Windows))
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/// Returns whether the instance is `.serverTrustEvaluationFailed`. When `true`, the `underlyingError` property will
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/// contain the associated value.
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public var isServerTrustEvaluationError: Bool {
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if case .serverTrustEvaluationFailed = self { return true }
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return false
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}
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#endif
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/// Returns whether the instance is `requestRetryFailed`. When `true`, the `underlyingError` property will
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/// contain the associated value.
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public var isRequestRetryError: Bool {
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if case .requestRetryFailed = self { return true }
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return false
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}
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333 |
/// Returns whether the instance is `createUploadableFailed`. When `true`, the `underlyingError` property will
|
|
|
334 |
/// contain the associated value.
|
|
|
335 |
public var isCreateUploadableError: Bool {
|
|
|
336 |
if case .createUploadableFailed = self { return true }
|
|
|
337 |
return false
|
|
|
338 |
}
|
|
|
339 |
|
|
|
340 |
/// Returns whether the instance is `createURLRequestFailed`. When `true`, the `underlyingError` property will
|
|
|
341 |
/// contain the associated value.
|
|
|
342 |
public var isCreateURLRequestError: Bool {
|
|
|
343 |
if case .createURLRequestFailed = self { return true }
|
|
|
344 |
return false
|
|
|
345 |
}
|
|
|
346 |
|
|
|
347 |
/// Returns whether the instance is `downloadedFileMoveFailed`. When `true`, the `destination` and `underlyingError` properties will
|
|
|
348 |
/// contain the associated values.
|
|
|
349 |
public var isDownloadedFileMoveError: Bool {
|
|
|
350 |
if case .downloadedFileMoveFailed = self { return true }
|
|
|
351 |
return false
|
|
|
352 |
}
|
|
|
353 |
|
|
|
354 |
/// Returns whether the instance is `createURLRequestFailed`. When `true`, the `underlyingError` property will
|
|
|
355 |
/// contain the associated value.
|
|
|
356 |
public var isSessionTaskError: Bool {
|
|
|
357 |
if case .sessionTaskFailed = self { return true }
|
|
|
358 |
return false
|
|
|
359 |
}
|
|
|
360 |
}
|
|
|
361 |
|
|
|
362 |
// MARK: - Convenience Properties
|
|
|
363 |
|
|
|
364 |
extension AFError {
|
|
|
365 |
/// The `URLConvertible` associated with the error.
|
|
|
366 |
public var urlConvertible: URLConvertible? {
|
|
|
367 |
guard case let .invalidURL(url) = self else { return nil }
|
|
|
368 |
return url
|
|
|
369 |
}
|
|
|
370 |
|
|
|
371 |
/// The `URL` associated with the error.
|
|
|
372 |
public var url: URL? {
|
|
|
373 |
guard case let .multipartEncodingFailed(reason) = self else { return nil }
|
|
|
374 |
return reason.url
|
|
|
375 |
}
|
|
|
376 |
|
|
|
377 |
/// The underlying `Error` responsible for generating the failure associated with `.sessionInvalidated`,
|
|
|
378 |
/// `.parameterEncodingFailed`, `.parameterEncoderFailed`, `.multipartEncodingFailed`, `.requestAdaptationFailed`,
|
|
|
379 |
/// `.responseSerializationFailed`, `.requestRetryFailed` errors.
|
|
|
380 |
public var underlyingError: Error? {
|
|
|
381 |
switch self {
|
|
|
382 |
case let .multipartEncodingFailed(reason):
|
|
|
383 |
return reason.underlyingError
|
|
|
384 |
case let .parameterEncodingFailed(reason):
|
|
|
385 |
return reason.underlyingError
|
|
|
386 |
case let .parameterEncoderFailed(reason):
|
|
|
387 |
return reason.underlyingError
|
|
|
388 |
case let .requestAdaptationFailed(error):
|
|
|
389 |
return error
|
|
|
390 |
case let .requestRetryFailed(retryError, _):
|
|
|
391 |
return retryError
|
|
|
392 |
case let .responseValidationFailed(reason):
|
|
|
393 |
return reason.underlyingError
|
|
|
394 |
case let .responseSerializationFailed(reason):
|
|
|
395 |
return reason.underlyingError
|
|
|
396 |
#if !(os(Linux) || os(Windows))
|
|
|
397 |
case let .serverTrustEvaluationFailed(reason):
|
|
|
398 |
return reason.underlyingError
|
|
|
399 |
#endif
|
|
|
400 |
case let .sessionInvalidated(error):
|
|
|
401 |
return error
|
|
|
402 |
case let .createUploadableFailed(error):
|
|
|
403 |
return error
|
|
|
404 |
case let .createURLRequestFailed(error):
|
|
|
405 |
return error
|
|
|
406 |
case let .downloadedFileMoveFailed(error, _, _):
|
|
|
407 |
return error
|
|
|
408 |
case let .sessionTaskFailed(error):
|
|
|
409 |
return error
|
|
|
410 |
case .explicitlyCancelled,
|
|
|
411 |
.invalidURL,
|
|
|
412 |
.sessionDeinitialized,
|
|
|
413 |
.urlRequestValidationFailed:
|
|
|
414 |
return nil
|
|
|
415 |
}
|
|
|
416 |
}
|
|
|
417 |
|
|
|
418 |
/// The acceptable `Content-Type`s of a `.responseValidationFailed` error.
|
|
|
419 |
public var acceptableContentTypes: [String]? {
|
|
|
420 |
guard case let .responseValidationFailed(reason) = self else { return nil }
|
|
|
421 |
return reason.acceptableContentTypes
|
|
|
422 |
}
|
|
|
423 |
|
|
|
424 |
/// The response `Content-Type` of a `.responseValidationFailed` error.
|
|
|
425 |
public var responseContentType: String? {
|
|
|
426 |
guard case let .responseValidationFailed(reason) = self else { return nil }
|
|
|
427 |
return reason.responseContentType
|
|
|
428 |
}
|
|
|
429 |
|
|
|
430 |
/// The response code of a `.responseValidationFailed` error.
|
|
|
431 |
public var responseCode: Int? {
|
|
|
432 |
guard case let .responseValidationFailed(reason) = self else { return nil }
|
|
|
433 |
return reason.responseCode
|
|
|
434 |
}
|
|
|
435 |
|
|
|
436 |
/// The `String.Encoding` associated with a failed `.stringResponse()` call.
|
|
|
437 |
public var failedStringEncoding: String.Encoding? {
|
|
|
438 |
guard case let .responseSerializationFailed(reason) = self else { return nil }
|
|
|
439 |
return reason.failedStringEncoding
|
|
|
440 |
}
|
|
|
441 |
|
|
|
442 |
/// The `source` URL of a `.downloadedFileMoveFailed` error.
|
|
|
443 |
public var sourceURL: URL? {
|
|
|
444 |
guard case let .downloadedFileMoveFailed(_, source, _) = self else { return nil }
|
|
|
445 |
return source
|
|
|
446 |
}
|
|
|
447 |
|
|
|
448 |
/// The `destination` URL of a `.downloadedFileMoveFailed` error.
|
|
|
449 |
public var destinationURL: URL? {
|
|
|
450 |
guard case let .downloadedFileMoveFailed(_, _, destination) = self else { return nil }
|
|
|
451 |
return destination
|
|
|
452 |
}
|
|
|
453 |
|
|
|
454 |
#if !(os(Linux) || os(Windows))
|
|
|
455 |
/// The download resume data of any underlying network error. Only produced by `DownloadRequest`s.
|
|
|
456 |
public var downloadResumeData: Data? {
|
|
|
457 |
(underlyingError as? URLError)?.userInfo[NSURLSessionDownloadTaskResumeData] as? Data
|
|
|
458 |
}
|
|
|
459 |
#endif
|
|
|
460 |
}
|
|
|
461 |
|
|
|
462 |
extension AFError.ParameterEncodingFailureReason {
|
|
|
463 |
var underlyingError: Error? {
|
|
|
464 |
switch self {
|
|
|
465 |
case let .jsonEncodingFailed(error),
|
|
|
466 |
let .customEncodingFailed(error):
|
|
|
467 |
return error
|
|
|
468 |
case .missingURL:
|
|
|
469 |
return nil
|
|
|
470 |
}
|
|
|
471 |
}
|
|
|
472 |
}
|
|
|
473 |
|
|
|
474 |
extension AFError.ParameterEncoderFailureReason {
|
|
|
475 |
var underlyingError: Error? {
|
|
|
476 |
switch self {
|
|
|
477 |
case let .encoderFailed(error):
|
|
|
478 |
return error
|
|
|
479 |
case .missingRequiredComponent:
|
|
|
480 |
return nil
|
|
|
481 |
}
|
|
|
482 |
}
|
|
|
483 |
}
|
|
|
484 |
|
|
|
485 |
extension AFError.MultipartEncodingFailureReason {
|
|
|
486 |
var url: URL? {
|
|
|
487 |
switch self {
|
|
|
488 |
case let .bodyPartURLInvalid(url),
|
|
|
489 |
let .bodyPartFilenameInvalid(url),
|
|
|
490 |
let .bodyPartFileNotReachable(url),
|
|
|
491 |
let .bodyPartFileIsDirectory(url),
|
|
|
492 |
let .bodyPartFileSizeNotAvailable(url),
|
|
|
493 |
let .bodyPartInputStreamCreationFailed(url),
|
|
|
494 |
let .outputStreamCreationFailed(url),
|
|
|
495 |
let .outputStreamFileAlreadyExists(url),
|
|
|
496 |
let .outputStreamURLInvalid(url),
|
|
|
497 |
let .bodyPartFileNotReachableWithError(url, _),
|
|
|
498 |
let .bodyPartFileSizeQueryFailedWithError(url, _):
|
|
|
499 |
return url
|
|
|
500 |
case .outputStreamWriteFailed,
|
|
|
501 |
.inputStreamReadFailed:
|
|
|
502 |
return nil
|
|
|
503 |
}
|
|
|
504 |
}
|
|
|
505 |
|
|
|
506 |
var underlyingError: Error? {
|
|
|
507 |
switch self {
|
|
|
508 |
case let .bodyPartFileNotReachableWithError(_, error),
|
|
|
509 |
let .bodyPartFileSizeQueryFailedWithError(_, error),
|
|
|
510 |
let .outputStreamWriteFailed(error),
|
|
|
511 |
let .inputStreamReadFailed(error):
|
|
|
512 |
return error
|
|
|
513 |
case .bodyPartURLInvalid,
|
|
|
514 |
.bodyPartFilenameInvalid,
|
|
|
515 |
.bodyPartFileNotReachable,
|
|
|
516 |
.bodyPartFileIsDirectory,
|
|
|
517 |
.bodyPartFileSizeNotAvailable,
|
|
|
518 |
.bodyPartInputStreamCreationFailed,
|
|
|
519 |
.outputStreamCreationFailed,
|
|
|
520 |
.outputStreamFileAlreadyExists,
|
|
|
521 |
.outputStreamURLInvalid:
|
|
|
522 |
return nil
|
|
|
523 |
}
|
|
|
524 |
}
|
|
|
525 |
}
|
|
|
526 |
|
|
|
527 |
extension AFError.ResponseValidationFailureReason {
|
|
|
528 |
var acceptableContentTypes: [String]? {
|
|
|
529 |
switch self {
|
|
|
530 |
case let .missingContentType(types),
|
|
|
531 |
let .unacceptableContentType(types, _):
|
|
|
532 |
return types
|
|
|
533 |
case .dataFileNil,
|
|
|
534 |
.dataFileReadFailed,
|
|
|
535 |
.unacceptableStatusCode,
|
|
|
536 |
.customValidationFailed:
|
|
|
537 |
return nil
|
|
|
538 |
}
|
|
|
539 |
}
|
|
|
540 |
|
|
|
541 |
var responseContentType: String? {
|
|
|
542 |
switch self {
|
|
|
543 |
case let .unacceptableContentType(_, responseType):
|
|
|
544 |
return responseType
|
|
|
545 |
case .dataFileNil,
|
|
|
546 |
.dataFileReadFailed,
|
|
|
547 |
.missingContentType,
|
|
|
548 |
.unacceptableStatusCode,
|
|
|
549 |
.customValidationFailed:
|
|
|
550 |
return nil
|
|
|
551 |
}
|
|
|
552 |
}
|
|
|
553 |
|
|
|
554 |
var responseCode: Int? {
|
|
|
555 |
switch self {
|
|
|
556 |
case let .unacceptableStatusCode(code):
|
|
|
557 |
return code
|
|
|
558 |
case .dataFileNil,
|
|
|
559 |
.dataFileReadFailed,
|
|
|
560 |
.missingContentType,
|
|
|
561 |
.unacceptableContentType,
|
|
|
562 |
.customValidationFailed:
|
|
|
563 |
return nil
|
|
|
564 |
}
|
|
|
565 |
}
|
|
|
566 |
|
|
|
567 |
var underlyingError: Error? {
|
|
|
568 |
switch self {
|
|
|
569 |
case let .customValidationFailed(error):
|
|
|
570 |
return error
|
|
|
571 |
case .dataFileNil,
|
|
|
572 |
.dataFileReadFailed,
|
|
|
573 |
.missingContentType,
|
|
|
574 |
.unacceptableContentType,
|
|
|
575 |
.unacceptableStatusCode:
|
|
|
576 |
return nil
|
|
|
577 |
}
|
|
|
578 |
}
|
|
|
579 |
}
|
|
|
580 |
|
|
|
581 |
extension AFError.ResponseSerializationFailureReason {
|
|
|
582 |
var failedStringEncoding: String.Encoding? {
|
|
|
583 |
switch self {
|
|
|
584 |
case let .stringSerializationFailed(encoding):
|
|
|
585 |
return encoding
|
|
|
586 |
case .inputDataNilOrZeroLength,
|
|
|
587 |
.inputFileNil,
|
|
|
588 |
.inputFileReadFailed(_),
|
|
|
589 |
.jsonSerializationFailed(_),
|
|
|
590 |
.decodingFailed(_),
|
|
|
591 |
.customSerializationFailed(_),
|
|
|
592 |
.invalidEmptyResponse:
|
|
|
593 |
return nil
|
|
|
594 |
}
|
|
|
595 |
}
|
|
|
596 |
|
|
|
597 |
var underlyingError: Error? {
|
|
|
598 |
switch self {
|
|
|
599 |
case let .jsonSerializationFailed(error),
|
|
|
600 |
let .decodingFailed(error),
|
|
|
601 |
let .customSerializationFailed(error):
|
|
|
602 |
return error
|
|
|
603 |
case .inputDataNilOrZeroLength,
|
|
|
604 |
.inputFileNil,
|
|
|
605 |
.inputFileReadFailed,
|
|
|
606 |
.stringSerializationFailed,
|
|
|
607 |
.invalidEmptyResponse:
|
|
|
608 |
return nil
|
|
|
609 |
}
|
|
|
610 |
}
|
|
|
611 |
}
|
|
|
612 |
|
|
|
613 |
#if !(os(Linux) || os(Windows))
|
|
|
614 |
extension AFError.ServerTrustFailureReason {
|
|
|
615 |
var output: AFError.ServerTrustFailureReason.Output? {
|
|
|
616 |
switch self {
|
|
|
617 |
case let .defaultEvaluationFailed(output),
|
|
|
618 |
let .hostValidationFailed(output),
|
|
|
619 |
let .revocationCheckFailed(output, _):
|
|
|
620 |
return output
|
|
|
621 |
case .noRequiredEvaluator,
|
|
|
622 |
.noCertificatesFound,
|
|
|
623 |
.noPublicKeysFound,
|
|
|
624 |
.policyApplicationFailed,
|
|
|
625 |
.settingAnchorCertificatesFailed,
|
|
|
626 |
.revocationPolicyCreationFailed,
|
|
|
627 |
.trustEvaluationFailed,
|
|
|
628 |
.certificatePinningFailed,
|
|
|
629 |
.publicKeyPinningFailed,
|
|
|
630 |
.customEvaluationFailed:
|
|
|
631 |
return nil
|
|
|
632 |
}
|
|
|
633 |
}
|
|
|
634 |
|
|
|
635 |
var underlyingError: Error? {
|
|
|
636 |
switch self {
|
|
|
637 |
case let .customEvaluationFailed(error):
|
|
|
638 |
return error
|
|
|
639 |
case let .trustEvaluationFailed(error):
|
|
|
640 |
return error
|
|
|
641 |
case .noRequiredEvaluator,
|
|
|
642 |
.noCertificatesFound,
|
|
|
643 |
.noPublicKeysFound,
|
|
|
644 |
.policyApplicationFailed,
|
|
|
645 |
.settingAnchorCertificatesFailed,
|
|
|
646 |
.revocationPolicyCreationFailed,
|
|
|
647 |
.defaultEvaluationFailed,
|
|
|
648 |
.hostValidationFailed,
|
|
|
649 |
.revocationCheckFailed,
|
|
|
650 |
.certificatePinningFailed,
|
|
|
651 |
.publicKeyPinningFailed:
|
|
|
652 |
return nil
|
|
|
653 |
}
|
|
|
654 |
}
|
|
|
655 |
}
|
|
|
656 |
#endif
|
|
|
657 |
|
|
|
658 |
// MARK: - Error Descriptions
|
|
|
659 |
|
|
|
660 |
extension AFError: LocalizedError {
|
|
|
661 |
public var errorDescription: String? {
|
|
|
662 |
switch self {
|
|
|
663 |
case .explicitlyCancelled:
|
|
|
664 |
return "Request explicitly cancelled."
|
|
|
665 |
case let .invalidURL(url):
|
|
|
666 |
return "URL is not valid: \(url)"
|
|
|
667 |
case let .parameterEncodingFailed(reason):
|
|
|
668 |
return reason.localizedDescription
|
|
|
669 |
case let .parameterEncoderFailed(reason):
|
|
|
670 |
return reason.localizedDescription
|
|
|
671 |
case let .multipartEncodingFailed(reason):
|
|
|
672 |
return reason.localizedDescription
|
|
|
673 |
case let .requestAdaptationFailed(error):
|
|
|
674 |
return "Request adaption failed with error: \(error.localizedDescription)"
|
|
|
675 |
case let .responseValidationFailed(reason):
|
|
|
676 |
return reason.localizedDescription
|
|
|
677 |
case let .responseSerializationFailed(reason):
|
|
|
678 |
return reason.localizedDescription
|
|
|
679 |
case let .requestRetryFailed(retryError, originalError):
|
|
|
680 |
return """
|
|
|
681 |
Request retry failed with retry error: \(retryError.localizedDescription), \
|
|
|
682 |
original error: \(originalError.localizedDescription)
|
|
|
683 |
"""
|
|
|
684 |
case .sessionDeinitialized:
|
|
|
685 |
return """
|
|
|
686 |
Session was invalidated without error, so it was likely deinitialized unexpectedly. \
|
|
|
687 |
Be sure to retain a reference to your Session for the duration of your requests.
|
|
|
688 |
"""
|
|
|
689 |
case let .sessionInvalidated(error):
|
|
|
690 |
return "Session was invalidated with error: \(error?.localizedDescription ?? "No description.")"
|
|
|
691 |
#if !(os(Linux) || os(Windows))
|
|
|
692 |
case let .serverTrustEvaluationFailed(reason):
|
|
|
693 |
return "Server trust evaluation failed due to reason: \(reason.localizedDescription)"
|
|
|
694 |
#endif
|
|
|
695 |
case let .urlRequestValidationFailed(reason):
|
|
|
696 |
return "URLRequest validation failed due to reason: \(reason.localizedDescription)"
|
|
|
697 |
case let .createUploadableFailed(error):
|
|
|
698 |
return "Uploadable creation failed with error: \(error.localizedDescription)"
|
|
|
699 |
case let .createURLRequestFailed(error):
|
|
|
700 |
return "URLRequest creation failed with error: \(error.localizedDescription)"
|
|
|
701 |
case let .downloadedFileMoveFailed(error, source, destination):
|
|
|
702 |
return "Moving downloaded file from: \(source) to: \(destination) failed with error: \(error.localizedDescription)"
|
|
|
703 |
case let .sessionTaskFailed(error):
|
|
|
704 |
return "URLSessionTask failed with error: \(error.localizedDescription)"
|
|
|
705 |
}
|
|
|
706 |
}
|
|
|
707 |
}
|
|
|
708 |
|
|
|
709 |
extension AFError.ParameterEncodingFailureReason {
|
|
|
710 |
var localizedDescription: String {
|
|
|
711 |
switch self {
|
|
|
712 |
case .missingURL:
|
|
|
713 |
return "URL request to encode was missing a URL"
|
|
|
714 |
case let .jsonEncodingFailed(error):
|
|
|
715 |
return "JSON could not be encoded because of error:\n\(error.localizedDescription)"
|
|
|
716 |
case let .customEncodingFailed(error):
|
|
|
717 |
return "Custom parameter encoder failed with error: \(error.localizedDescription)"
|
|
|
718 |
}
|
|
|
719 |
}
|
|
|
720 |
}
|
|
|
721 |
|
|
|
722 |
extension AFError.ParameterEncoderFailureReason {
|
|
|
723 |
var localizedDescription: String {
|
|
|
724 |
switch self {
|
|
|
725 |
case let .missingRequiredComponent(component):
|
|
|
726 |
return "Encoding failed due to a missing request component: \(component)"
|
|
|
727 |
case let .encoderFailed(error):
|
|
|
728 |
return "The underlying encoder failed with the error: \(error)"
|
|
|
729 |
}
|
|
|
730 |
}
|
|
|
731 |
}
|
|
|
732 |
|
|
|
733 |
extension AFError.MultipartEncodingFailureReason {
|
|
|
734 |
var localizedDescription: String {
|
|
|
735 |
switch self {
|
|
|
736 |
case let .bodyPartURLInvalid(url):
|
|
|
737 |
return "The URL provided is not a file URL: \(url)"
|
|
|
738 |
case let .bodyPartFilenameInvalid(url):
|
|
|
739 |
return "The URL provided does not have a valid filename: \(url)"
|
|
|
740 |
case let .bodyPartFileNotReachable(url):
|
|
|
741 |
return "The URL provided is not reachable: \(url)"
|
|
|
742 |
case let .bodyPartFileNotReachableWithError(url, error):
|
|
|
743 |
return """
|
|
|
744 |
The system returned an error while checking the provided URL for reachability.
|
|
|
745 |
URL: \(url)
|
|
|
746 |
Error: \(error)
|
|
|
747 |
"""
|
|
|
748 |
case let .bodyPartFileIsDirectory(url):
|
|
|
749 |
return "The URL provided is a directory: \(url)"
|
|
|
750 |
case let .bodyPartFileSizeNotAvailable(url):
|
|
|
751 |
return "Could not fetch the file size from the provided URL: \(url)"
|
|
|
752 |
case let .bodyPartFileSizeQueryFailedWithError(url, error):
|
|
|
753 |
return """
|
|
|
754 |
The system returned an error while attempting to fetch the file size from the provided URL.
|
|
|
755 |
URL: \(url)
|
|
|
756 |
Error: \(error)
|
|
|
757 |
"""
|
|
|
758 |
case let .bodyPartInputStreamCreationFailed(url):
|
|
|
759 |
return "Failed to create an InputStream for the provided URL: \(url)"
|
|
|
760 |
case let .outputStreamCreationFailed(url):
|
|
|
761 |
return "Failed to create an OutputStream for URL: \(url)"
|
|
|
762 |
case let .outputStreamFileAlreadyExists(url):
|
|
|
763 |
return "A file already exists at the provided URL: \(url)"
|
|
|
764 |
case let .outputStreamURLInvalid(url):
|
|
|
765 |
return "The provided OutputStream URL is invalid: \(url)"
|
|
|
766 |
case let .outputStreamWriteFailed(error):
|
|
|
767 |
return "OutputStream write failed with error: \(error)"
|
|
|
768 |
case let .inputStreamReadFailed(error):
|
|
|
769 |
return "InputStream read failed with error: \(error)"
|
|
|
770 |
}
|
|
|
771 |
}
|
|
|
772 |
}
|
|
|
773 |
|
|
|
774 |
extension AFError.ResponseSerializationFailureReason {
|
|
|
775 |
var localizedDescription: String {
|
|
|
776 |
switch self {
|
|
|
777 |
case .inputDataNilOrZeroLength:
|
|
|
778 |
return "Response could not be serialized, input data was nil or zero length."
|
|
|
779 |
case .inputFileNil:
|
|
|
780 |
return "Response could not be serialized, input file was nil."
|
|
|
781 |
case let .inputFileReadFailed(url):
|
|
|
782 |
return "Response could not be serialized, input file could not be read: \(url)."
|
|
|
783 |
case let .stringSerializationFailed(encoding):
|
|
|
784 |
return "String could not be serialized with encoding: \(encoding)."
|
|
|
785 |
case let .jsonSerializationFailed(error):
|
|
|
786 |
return "JSON could not be serialized because of error:\n\(error.localizedDescription)"
|
|
|
787 |
case let .invalidEmptyResponse(type):
|
|
|
788 |
return """
|
|
|
789 |
Empty response could not be serialized to type: \(type). \
|
|
|
790 |
Use Empty as the expected type for such responses.
|
|
|
791 |
"""
|
|
|
792 |
case let .decodingFailed(error):
|
|
|
793 |
return "Response could not be decoded because of error:\n\(error.localizedDescription)"
|
|
|
794 |
case let .customSerializationFailed(error):
|
|
|
795 |
return "Custom response serializer failed with error:\n\(error.localizedDescription)"
|
|
|
796 |
}
|
|
|
797 |
}
|
|
|
798 |
}
|
|
|
799 |
|
|
|
800 |
extension AFError.ResponseValidationFailureReason {
|
|
|
801 |
var localizedDescription: String {
|
|
|
802 |
switch self {
|
|
|
803 |
case .dataFileNil:
|
|
|
804 |
return "Response could not be validated, data file was nil."
|
|
|
805 |
case let .dataFileReadFailed(url):
|
|
|
806 |
return "Response could not be validated, data file could not be read: \(url)."
|
|
|
807 |
case let .missingContentType(types):
|
|
|
808 |
return """
|
|
|
809 |
Response Content-Type was missing and acceptable content types \
|
|
|
810 |
(\(types.joined(separator: ","))) do not match "*/*".
|
|
|
811 |
"""
|
|
|
812 |
case let .unacceptableContentType(acceptableTypes, responseType):
|
|
|
813 |
return """
|
|
|
814 |
Response Content-Type "\(responseType)" does not match any acceptable types: \
|
|
|
815 |
\(acceptableTypes.joined(separator: ",")).
|
|
|
816 |
"""
|
|
|
817 |
case let .unacceptableStatusCode(code):
|
|
|
818 |
return "Response status code was unacceptable: \(code)."
|
|
|
819 |
case let .customValidationFailed(error):
|
|
|
820 |
return "Custom response validation failed with error: \(error.localizedDescription)"
|
|
|
821 |
}
|
|
|
822 |
}
|
|
|
823 |
}
|
|
|
824 |
|
|
|
825 |
#if !(os(Linux) || os(Windows))
|
|
|
826 |
extension AFError.ServerTrustFailureReason {
|
|
|
827 |
var localizedDescription: String {
|
|
|
828 |
switch self {
|
|
|
829 |
case let .noRequiredEvaluator(host):
|
|
|
830 |
return "A ServerTrustEvaluating value is required for host \(host) but none was found."
|
|
|
831 |
case .noCertificatesFound:
|
|
|
832 |
return "No certificates were found or provided for evaluation."
|
|
|
833 |
case .noPublicKeysFound:
|
|
|
834 |
return "No public keys were found or provided for evaluation."
|
|
|
835 |
case .policyApplicationFailed:
|
|
|
836 |
return "Attempting to set a SecPolicy failed."
|
|
|
837 |
case .settingAnchorCertificatesFailed:
|
|
|
838 |
return "Attempting to set the provided certificates as anchor certificates failed."
|
|
|
839 |
case .revocationPolicyCreationFailed:
|
|
|
840 |
return "Attempting to create a revocation policy failed."
|
|
|
841 |
case let .trustEvaluationFailed(error):
|
|
|
842 |
return "SecTrust evaluation failed with error: \(error?.localizedDescription ?? "None")"
|
|
|
843 |
case let .defaultEvaluationFailed(output):
|
|
|
844 |
return "Default evaluation failed for host \(output.host)."
|
|
|
845 |
case let .hostValidationFailed(output):
|
|
|
846 |
return "Host validation failed for host \(output.host)."
|
|
|
847 |
case let .revocationCheckFailed(output, _):
|
|
|
848 |
return "Revocation check failed for host \(output.host)."
|
|
|
849 |
case let .certificatePinningFailed(host, _, _, _):
|
|
|
850 |
return "Certificate pinning failed for host \(host)."
|
|
|
851 |
case let .publicKeyPinningFailed(host, _, _, _):
|
|
|
852 |
return "Public key pinning failed for host \(host)."
|
|
|
853 |
case let .customEvaluationFailed(error):
|
|
|
854 |
return "Custom trust evaluation failed with error: \(error.localizedDescription)"
|
|
|
855 |
}
|
|
|
856 |
}
|
|
|
857 |
}
|
|
|
858 |
#endif
|
|
|
859 |
|
|
|
860 |
extension AFError.URLRequestValidationFailureReason {
|
|
|
861 |
var localizedDescription: String {
|
|
|
862 |
switch self {
|
|
|
863 |
case let .bodyDataInGETRequest(data):
|
|
|
864 |
return """
|
|
|
865 |
Invalid URLRequest: Requests with GET method cannot have body data:
|
|
|
866 |
\(String(decoding: data, as: UTF8.self))
|
|
|
867 |
"""
|
|
|
868 |
}
|
|
|
869 |
}
|
|
|
870 |
}
|