77 lines
2.7 KiB
Swift
77 lines
2.7 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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import MatrixSDK
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@objcMembers
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/// URL validation result object
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class URLValidationResult: NSObject {
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/// Should confirm the tapped url
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let shouldShowConfirmationAlert: Bool
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/// User visible string the user tapped
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let visibleURLString: String?
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init(shouldShowConfirmationAlert: Bool,
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visibleURLString: String?) {
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self.shouldShowConfirmationAlert = shouldShowConfirmationAlert
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self.visibleURLString = visibleURLString
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super.init()
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}
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static let passed = URLValidationResult(shouldShowConfirmationAlert: false,
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visibleURLString: nil)
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}
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@objcMembers
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class URLValidator: NSObject {
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/// Validated tapped url in the given event
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/// - Parameters:
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/// - url: User tapped URL
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/// - event: Event containing the link
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/// - Returns: Validation result
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static func validateTappedURL(_ url: URL, in event: MXEvent) -> URLValidationResult {
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guard let content = event.content else {
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return .passed
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}
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if let format = content["format"] as? String,
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let formattedBody = content["formatted_body"] as? String {
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if format == kMXRoomMessageFormatHTML {
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if let visibleURL = FormattedBodyParser().getVisibleURL(forURL: url, inFormattedBody: formattedBody),
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url != visibleURL {
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// urls are different, show confirmation alert
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return .init(shouldShowConfirmationAlert: true,
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visibleURLString: visibleURL.absoluteString)
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}
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}
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}
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if let body = event.content[kMXMessageBodyKey] as? String,
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body.vc_containsRTLOverride(),
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body != url.absoluteString {
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// we don't know where the url is in the body, assuming visibleString is just a reverse of the url
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return .init(shouldShowConfirmationAlert: true,
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visibleURLString: url.absoluteString.vc_reversed())
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}
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return .passed
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}
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}
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