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Merge pull request #228 from ForgeRock/develop
ForgeRock iOS SDK 4.1.0 Release
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| // | ||
| // PolicyAdviceCreator.swift | ||
| // FRAuth | ||
| // | ||
| // Copyright (c) 2023 ForgeRock. All rights reserved. | ||
| // | ||
| // This software may be modified and distributed under the terms | ||
| // of the MIT license. See the LICENSE file for details. | ||
| // | ||
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| import Foundation | ||
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| /// PolicyAdviceCreator helps create a Authorization PolicyAdvice based on different response types (xml, base64XML, json) that receive from AM's policy engine | ||
| class PolicyAdviceCreator { | ||
|
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| private let adviceKey = "advices" | ||
| private let valueKey = "authIndexValue" | ||
| private let typeKey = "authIndexType" | ||
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| /// Parse the advice json | ||
| /// - Parameters: | ||
| /// - advice: The Advice in key value form | ||
| /// - Returns: The parsed PolicyAdvice | ||
| func parseAsBase64(advice: String) -> PolicyAdvice? { | ||
| var dict: [String: String] = [:] | ||
| let regex = try? NSRegularExpression(pattern: "^\"|\"$", options: []) | ||
| advice.components(separatedBy: ",").forEach { value in | ||
| let componenets = value.components(separatedBy: "=") | ||
| if(componenets.count >= 2 ) { | ||
| dict[componenets[0]] = regex?.stringByReplacingMatches(in: componenets[1], range: NSMakeRange(0, componenets[1].count), withTemplate: "") | ||
| } | ||
| } | ||
| guard let advices = dict[adviceKey], let decodedAdvices = advices.decodeURL(), | ||
| let adviceDict = try? JSONSerialization.jsonObject(with: decodedAdvices, options: []) as? [String: Any] else { | ||
| return nil | ||
| } | ||
| return PolicyAdvice(json: adviceDict) | ||
| } | ||
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| /// Parse the advice json | ||
| /// - Parameters: | ||
| /// - advice: The Advice in XML or base64 encoded form | ||
| /// - Returns: The parsed PolicyAdvice | ||
| func parse(advice: String) -> PolicyAdvice? { | ||
| guard let urlString = URL(string: advice), let authIndexValue = urlString.valueOf(valueKey), let authIndexType = urlString.valueOf(typeKey) else { | ||
| return nil | ||
| } | ||
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| // Try Parse the XML. | ||
| guard let result = parseXML(advice: authIndexValue) else { | ||
| //On Failure Decode and parse the XML | ||
| return decodeAndParseXML(authIndexType: authIndexType, | ||
| authIndexValue: authIndexValue) | ||
| } | ||
| return PolicyAdvice(type: result.0, | ||
| value: result.1, | ||
| authIndexType: authIndexType, | ||
| authIndexValue: authIndexValue) | ||
| } | ||
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| private func decodeAndParseXML(authIndexType: String, | ||
| authIndexValue: String) -> PolicyAdvice? { | ||
| guard let data = authIndexValue.decodeURL(), | ||
| let decodeXML = String(data: data, encoding: .utf8), | ||
| let result = parseXML(advice: decodeXML) else { return nil } | ||
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| return PolicyAdvice(type: result.0, | ||
| value: result.1, | ||
| authIndexType: authIndexType, | ||
| authIndexValue: decodeXML) | ||
| } | ||
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| private func parseXML(advice: String) -> (String, String)? { | ||
| guard let valueRange = advice.range(of: #"(?<=\<Value\>).*?(?=\<\/Value\>)"#, options: .regularExpression), let nameRange = advice.range(of: #"(?<=\<Attribute name=\").*?(?=\")"#, options: .regularExpression) else { | ||
| return nil | ||
| } | ||
| return (String(advice[nameRange]), String(advice[valueRange])) | ||
| } | ||
| } |
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