86 lines
3.5 KiB
Swift
86 lines
3.5 KiB
Swift
//
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// Copyright (c) 2022 Touch Instinct
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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 TIFoundationUtils
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open class DefaultSecuritySchemePreprocessor: SecuritySchemePreprocessor {
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struct ValueNotProvidedError: Error {}
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public typealias ValueProvider = (@escaping (String?) -> Void) -> Cancellable
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private let valueProvider: ValueProvider
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public init(valueProvider: @escaping ValueProvider) {
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self.valueProvider = valueProvider
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}
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public init(staticValue: String?) {
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self.valueProvider = {
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$0(staticValue)
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return Cancellables.nonCancellable()
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}
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}
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// MARK: - EndpointSecurityRequestPreprocessor
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public func preprocess<B,S>(request: EndpointRequest<B,S>,
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using security: SecurityScheme,
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completion: @escaping (Result<EndpointRequest<B,S>, Error>) -> Void) -> Cancellable {
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var modifiedRequest = request
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return valueProvider {
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guard let value = $0 else {
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completion(.failure(ValueNotProvidedError()))
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return
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}
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switch security {
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case let .http(authenticationScheme):
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let headerValue = "\(authenticationScheme.rawValue) \(value)"
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var headerParameters = modifiedRequest.headerParameters ?? [:]
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headerParameters.updateValue(.init(value: headerValue),
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forKey: "Authorization")
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modifiedRequest.headerParameters = headerParameters
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case let .apiKey(parameterLocation, parameterName):
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switch parameterLocation {
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case .header:
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var headerParameters = modifiedRequest.headerParameters ?? [:]
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headerParameters.updateValue(.init(value: value),
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forKey: parameterName)
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modifiedRequest.headerParameters = headerParameters
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case .query:
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modifiedRequest.queryParameters.updateValue(.init(value: value),
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forKey: parameterName)
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case .cookie:
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modifiedRequest.cookieParameters.updateValue(.init(value: value),
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forKey: parameterName)
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}
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}
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completion(.success(modifiedRequest))
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}
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}
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}
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