95 lines
3.4 KiB
Swift
95 lines
3.4 KiB
Swift
//
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// Copyright 2025 Element Creations Ltd.
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// Copyright 2022-2025 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
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// Please see LICENSE files in the repository root for full details.
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//
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import Foundation
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/// https://spec.matrix.org/latest/appendices/#identifier-grammar
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enum MatrixEntityRegex: String {
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case homeserver
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case userID
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case roomAlias
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case uri
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case allUsers
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case legacyRoomID
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var rawValue: String {
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switch self {
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case .homeserver:
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return "[A-Z0-9]+((\\.|\\-)[A-Z0-9]+){0,}(:[0-9]{2,5})?"
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case .userID:
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return "@[\\x21-\\x39\\x3B-\\x7F]+:" + MatrixEntityRegex.homeserver.rawValue
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case .roomAlias:
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return "#[A-Z0-9._%#@=+-]+:" + MatrixEntityRegex.homeserver.rawValue
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case .legacyRoomID:
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return "![A-Z0-9_\\-\\/]+:" + MatrixEntityRegex.homeserver.rawValue
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case .uri:
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return "matrix:(r|u|roomid)\\/[A-Z0-9\\-._~:/?#\\[\\]@!$&'()*+,;=%]*(?:\\?[A-Z0-9\\-._~:/?#\\[\\]@!$&'()*+,;=%]*)?"
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case .allUsers:
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return PillUtilities.atRoom
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}
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}
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// swiftlint:disable force_try
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static let homeserverRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.homeserver.rawValue, options: .caseInsensitive)
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static let userIdentifierRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.userID.rawValue, options: .caseInsensitive)
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static let roomAliasRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.roomAlias.rawValue, options: .caseInsensitive)
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static let uriRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.uri.rawValue, options: .caseInsensitive)
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static let allUsersRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.allUsers.rawValue)
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static let linkRegex = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
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static let legacyRoomIDRegex = try! NSRegularExpression(pattern: MatrixEntityRegex.legacyRoomID.rawValue, options: .caseInsensitive)
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// swiftlint:enable force_try
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static func isMatrixHomeserver(_ homeserver: String) -> Bool {
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guard let match = homeserverRegex.firstMatch(in: homeserver) else {
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return false
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}
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return match.range.length == homeserver.count
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}
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static func isMatrixUserIdentifier(_ identifier: String) -> Bool {
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guard let match = userIdentifierRegex.firstMatch(in: identifier) else {
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return false
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}
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return match.range.length == identifier.count
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}
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static func isMatrixRoomAlias(_ alias: String) -> Bool {
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guard let match = roomAliasRegex.firstMatch(in: alias) else {
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return false
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}
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return match.range.length == alias.count
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}
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static func isLegacyMatrixRoomID(_ roomID: String) -> Bool {
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guard let match = legacyRoomIDRegex.firstMatch(in: roomID) else {
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return false
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}
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return match.range.length == roomID.count
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}
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static func isMatrixURI(_ uri: String) -> Bool {
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guard let match = uriRegex.firstMatch(in: uri) else {
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return false
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}
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return match.range.length == uri.count
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}
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static func containsMatrixAllUsers(_ string: String) -> Bool {
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guard allUsersRegex.firstMatch(in: string) != nil else {
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return false
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}
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return true
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}
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}
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