73 lines
2.1 KiB
Swift
73 lines
2.1 KiB
Swift
//
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// Copyright 2024 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import Foundation
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import SignalCoreKit
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import SignalRingRTC
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struct CallLink {
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// MARK: -
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private enum Constants {
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static let scheme = "https"
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static let host = "signal.link"
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static let path = "/call/"
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static let key = "key"
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}
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// MARK: -
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let rootKey: CallLinkRootKey
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init(rootKey: CallLinkRootKey) {
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self.rootKey = rootKey
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}
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/// Parses a URL of the form: https://signal.link/call/#key=value
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init?(url: URL) {
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guard
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var components = URLComponents(url: url, resolvingAgainstBaseURL: false),
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components.scheme == Constants.scheme || components.scheme == UrlOpener.Constants.sgnlPrefix,
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components.user == nil,
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components.password == nil,
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components.host == Constants.host,
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components.port == nil,
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components.path == Constants.path,
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components.query == nil
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else {
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return nil
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}
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components.percentEncodedQuery = components.percentEncodedFragment
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guard
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let queryItems = components.queryItems?.filter({ $0.name == Constants.key }),
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queryItems.count == 1,
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let keyItem = queryItems.first,
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let keyValue = keyItem.value,
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let rootKey = try? CallLinkRootKey(keyValue)
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else {
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return nil
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}
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self.init(rootKey: rootKey)
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}
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static func generate() -> CallLink {
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let rootKey = CallLinkRootKey.generate()
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return CallLink(rootKey: rootKey)
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}
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func url() -> URL {
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var components = URLComponents()
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components.scheme = Constants.scheme
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components.host = Constants.host
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components.path = Constants.path
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components.queryItems = [
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URLQueryItem(name: Constants.key, value: rootKey.description),
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]
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components.percentEncodedFragment = components.percentEncodedQuery
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components.query = nil
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return components.url!
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}
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}
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