136 lines
4.1 KiB
Swift
136 lines
4.1 KiB
Swift
//
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// DebugLogView.swift
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// Passepartout
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//
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// Created by Davide De Rosa on 2/19/22.
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// Copyright (c) 2022 Davide De Rosa. All rights reserved.
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//
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// https://github.com/passepartoutvpn
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//
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// This file is part of Passepartout.
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//
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// Passepartout is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Passepartout is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
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//
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import SwiftUI
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import Combine
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import PassepartoutCore
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struct DebugLogView: View {
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private let url: URL
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private let timer: AnyPublisher<Date, Never>
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@State private var logLines: [String] = []
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@State private var isSharing = false
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private let maxBytes = UInt64(Constants.Log.tunnelLogMaxBytes)
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private let appName = Constants.Global.appName
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private let appVersion = Constants.Global.appVersionString
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private let shareFilename = Unlocalized.Issues.Filenames.debugLog
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init(url: URL, updateInterval: TimeInterval) {
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self.url = url
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timer = Timer.TimerPublisher(interval: updateInterval, runLoop: .main, mode: .common)
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.autoconnect()
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.eraseToAnyPublisher()
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}
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var body: some View {
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ScrollViewReader { scrollProxy in
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ScrollView(showsIndicators: true) {
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contentView
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}.toolbar(content: toolbar)
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.onAppear {
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refreshLog(scrollingToLatestWith: scrollProxy)
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}.onReceive(timer, perform: refreshLog)
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}.sheet(isPresented: $isSharing, content: sharingActivityView)
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.navigationTitle(L10n.DebugLog.title)
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.themeDebugLogFont()
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.edgesIgnoringSafeArea([.leading, .trailing])
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}
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@ViewBuilder
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private func toolbar() -> some View {
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if !isSharing {
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Button(action: shareDebugLog) {
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themeShareImage.asSystemImage
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}.disabled(logLines.isEmpty)
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} else {
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ProgressView()
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}
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}
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private var contentView: some View {
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LazyVStack {
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ForEach(logLines.indices, id: \.self) {
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Text(logLines[$0])
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.frame(maxWidth: .infinity, alignment: .leading)
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}
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}//.padding()
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// FIXME: layout, a slight padding would be nice, but it glitches on first touch
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}
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private func refreshLog(scrollingToLatestWith scrollProxy: ScrollViewProxy?) {
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logLines = url.trailingLines(bytes: maxBytes)
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if let scrollProxy = scrollProxy {
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scrollToLatestUpdate(scrollProxy)
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}
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}
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private func refreshLog(_: Date) {
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refreshLog(scrollingToLatestWith: nil)
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}
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private func shareDebugLog() {
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guard !logLines.isEmpty else {
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assertionFailure("Log is empty, why could it share?")
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return
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}
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isSharing = true
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}
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}
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extension DebugLogView {
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private func sharingActivityView() -> some View {
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ActivityView(activityItems: sharingItems)
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}
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private var sharingItems: [Any] {
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let raw = logLines.joined(separator: "\n")
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let data = DebugLog(content: raw).decoratedData(appName, appVersion)
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let path = NSTemporaryDirectory().appending(shareFilename)
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let url = URL(fileURLWithPath: path)
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do {
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try data.write(to: url)
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return [url]
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} catch {
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// highly unlikely to happen
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assertionFailure("Unable to save temporary debug log file: \(error)")
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return []
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}
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}
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}
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extension DebugLogView {
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private func scrollToLatestUpdate(_ proxy: ScrollViewProxy) {
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proxy.maybeScrollTo(logLines.count - 1, anchor: .bottomLeading)
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}
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}
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