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Extended device info (PSG-772) (#6766)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| // | ||
| // Copyright 2022 New Vector Ltd | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Foundation | ||
|
|
||
| extension Collection { | ||
| /// Returns the element at the specified index if it is within bounds, otherwise nil. | ||
| subscript(safe index: Index) -> Element? { | ||
| indices.contains(index) ? self[index] : nil | ||
| } | ||
| } |
201 changes: 201 additions & 0 deletions
201
RiotSwiftUI/Modules/UserSessions/Common/UserAgentParser.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,201 @@ | ||
| // | ||
| // Copyright 2022 New Vector Ltd | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Foundation | ||
|
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| struct UserAgent { | ||
| let deviceType: DeviceType | ||
| let deviceModel: String? | ||
| let deviceOS: String? | ||
| let clientName: String? | ||
| let clientVersion: String? | ||
|
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| static let unknown = UserAgent(deviceType: .unknown, | ||
| deviceModel: nil, | ||
| deviceOS: nil, | ||
| clientName: nil, | ||
| clientVersion: nil) | ||
| } | ||
|
|
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| extension UserAgent: Equatable { } | ||
|
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| enum UserAgentParser { | ||
| private enum Constants { | ||
| static let deviceInfoRegexPattern = "\\((?:[^)(]+|\\((?:[^)(]+|\\([^)(]*\\))*\\))*\\)" | ||
|
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| static let androidKeyword = "; MatrixAndroidSdk2" | ||
| static let iosKeyword = "; iOS " | ||
| static let desktopKeyword = " Electron/" | ||
| static let webKeyword = "Mozilla/" | ||
| } | ||
|
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| static func parse(_ userAgent: String) -> UserAgent { | ||
| if userAgent.vc_caseInsensitiveContains(Constants.androidKeyword) { | ||
| return parseAndroid(userAgent) | ||
| } else if userAgent.vc_caseInsensitiveContains(Constants.iosKeyword) { | ||
| return parseIOS(userAgent) | ||
| } else if userAgent.vc_caseInsensitiveContains(Constants.desktopKeyword) { | ||
| return parseDesktop(userAgent) | ||
| } else if userAgent.vc_caseInsensitiveContains(Constants.webKeyword) { | ||
| return parseWeb(userAgent) | ||
| } | ||
| return .unknown | ||
| } | ||
|
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| // Legacy: Element/1.0.0 (Linux; U; Android 6.0.1; SM-A510F Build/MMB29; Flavour GPlay; MatrixAndroidSdk2 1.0) | ||
| // New: Element dbg/1.5.0-dev (Xiaomi Mi 9T; Android 11; RKQ1.200826.002 test-keys; Flavour GooglePlay; MatrixAndroidSdk2 1.5.0) | ||
| private static func parseAndroid(_ userAgent: String) -> UserAgent { | ||
| var deviceModel: String? | ||
| var deviceOS: String? | ||
| var clientName: String? | ||
| var clientVersion: String? | ||
|
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| let (beforeSlash, afterSlash) = userAgent.splitByFirst("/") | ||
| clientName = beforeSlash | ||
| if let afterSlash = afterSlash { | ||
| let (beforeSpace, afterSpace) = afterSlash.splitByFirst(" ") | ||
| clientVersion = beforeSpace | ||
| if let afterSpace = afterSpace { | ||
| if let deviceInfo = findFirstDeviceInfo(in: afterSpace) { | ||
| let deviceInfoComponents = deviceInfo.components(separatedBy: "; ") | ||
| let isLegacy = deviceInfoComponents[safe: 0] == "Linux" | ||
| if isLegacy { | ||
| // find the segment starting with "Android" | ||
| if let osSegmentIndex = deviceInfoComponents.firstIndex(where: { $0.hasPrefix("Android") }) { | ||
| deviceOS = deviceInfoComponents[safe: osSegmentIndex] | ||
| deviceModel = deviceInfoComponents[safe: osSegmentIndex + 1] | ||
| } | ||
| } else { | ||
| deviceModel = deviceInfoComponents[safe: 0] | ||
| deviceOS = deviceInfoComponents[safe: 1] | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| return UserAgent(deviceType: .mobile, | ||
| deviceModel: deviceModel, | ||
| deviceOS: deviceOS, | ||
| clientName: clientName, | ||
| clientVersion: clientVersion) | ||
| } | ||
|
|
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| // Legacy: Riot/1.8.21 (iPhone; iOS 15.2; Scale/3.00) | ||
| // New: Riot/1.8.21 (iPhone X; iOS 15.2; Scale/3.00) | ||
| private static func parseIOS(_ userAgent: String) -> UserAgent { | ||
| var deviceModel: String? | ||
| var deviceOS: String? | ||
| var clientName: String? | ||
| var clientVersion: String? | ||
|
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| let (beforeSlash, afterSlash) = userAgent.splitByFirst("/") | ||
| clientName = beforeSlash | ||
| if let afterSlash = afterSlash { | ||
| let (beforeSpace, afterSpace) = afterSlash.splitByFirst(" ") | ||
| clientVersion = beforeSpace | ||
| if let afterSpace = afterSpace { | ||
| if let deviceInfo = findFirstDeviceInfo(in: afterSpace) { | ||
| let deviceInfoComponents = deviceInfo.components(separatedBy: "; ") | ||
| deviceModel = deviceInfoComponents[safe: 0] | ||
| deviceOS = deviceInfoComponents[safe: 1] | ||
| } | ||
| } | ||
| } | ||
|
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| return UserAgent(deviceType: .mobile, | ||
| deviceModel: deviceModel, | ||
| deviceOS: deviceOS, | ||
| clientName: clientName, | ||
| clientVersion: clientVersion) | ||
| } | ||
|
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| // Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) ElementNightly/2022091301 Chrome/104.0.5112.102 Electron/20.1.1 Safari/537.36 | ||
| private static func parseDesktop(_ userAgent: String) -> UserAgent { | ||
| var deviceOS: String? | ||
| let browserName = browserName(for: userAgent) | ||
|
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| if let deviceInfo = findFirstDeviceInfo(in: userAgent) { | ||
| let deviceInfoComponents = deviceInfo.components(separatedBy: "; ") | ||
| deviceOS = deviceInfoComponents[safe: 1]?.hasPrefix("Android") == true ? deviceInfoComponents[safe: 1] : deviceInfoComponents.first | ||
| } | ||
|
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| return UserAgent(deviceType: .desktop, | ||
| deviceModel: browserName, | ||
| deviceOS: deviceOS, | ||
| clientName: nil, | ||
| clientVersion: nil) | ||
| } | ||
|
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| // Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 | ||
| private static func parseWeb(_ userAgent: String) -> UserAgent { | ||
| let desktopUserAgent = parseDesktop(userAgent) | ||
|
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| return UserAgent(deviceType: .web, | ||
| deviceModel: desktopUserAgent.deviceModel, | ||
| deviceOS: desktopUserAgent.deviceOS, | ||
| clientName: desktopUserAgent.clientName, | ||
| clientVersion: desktopUserAgent.clientVersion) | ||
| } | ||
|
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| private static func findFirstDeviceInfo(in string: String) -> String? { | ||
| guard let regex = try? NSRegularExpression(pattern: Constants.deviceInfoRegexPattern, | ||
| options: .caseInsensitive) else { | ||
| return nil | ||
| } | ||
| var range = regex.rangeOfFirstMatch(in: string, range: NSRange(string.startIndex..., in: string)) | ||
| if range.location != NSNotFound { | ||
| range.location += 1 | ||
| range.length -= 2 | ||
| return string[range] | ||
| } | ||
| return nil | ||
| } | ||
|
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| private static func browserName(for userAgent: String) -> String? { | ||
| let components = userAgent.components(separatedBy: " ") | ||
| if components.last?.hasPrefix("Firefox") == true { | ||
| return "Firefox" | ||
| } else if components.last?.hasPrefix("Safari") == true | ||
| && components[safe:components.count - 2]?.hasPrefix("Mobile") == true { | ||
| // mobile browser | ||
| let possibleBrowserName = components[safe:components.count - 3]?.components(separatedBy: "/").first | ||
| return possibleBrowserName == "Version" ? "Safari" : possibleBrowserName | ||
| } else if components.last?.hasPrefix("Safari") == true && components[safe:components.count - 2]?.hasPrefix("Version") == true { | ||
| return "Safari" | ||
| } else { | ||
| // regular browser | ||
| return components[safe:components.count - 2]?.components(separatedBy: "/").first | ||
| } | ||
| } | ||
| } | ||
|
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| private extension String { | ||
| subscript(_ range: NSRange) -> String { | ||
| let start = index(startIndex, offsetBy: range.lowerBound) | ||
| let end = index(startIndex, offsetBy: range.upperBound) | ||
| let subString = self[start..<end] | ||
| return String(subString) | ||
| } | ||
|
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| func splitByFirst(_ delimiter: Character) -> (String?, String?) { | ||
| guard let delimiterIndex = firstIndex(of: delimiter) else { | ||
| return (nil, nil) | ||
| } | ||
| let before = String(prefix(upTo: delimiterIndex)) | ||
| let after = String(suffix(from: index(after: delimiterIndex))) | ||
| return (before, after) | ||
| } | ||
| } |
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