From 8bf4cbc1f090d53d1ef8e29e9cd3a6d286c060b8 Mon Sep 17 00:00:00 2001
From: Ilya Laktyushin <ilya@laktyush.in>
Date: Thu, 14 Mar 2024 18:02:25 +0400
Subject: [PATCH] Web apps terms of service

---
 .../Telegram-iOS/en.lproj/Localizable.strings |  3 +++
 .../Sources/CachedInternalInstantPages.swift  |  8 ++++++++
 submodules/WebUI/BUILD                        |  1 +
 .../WebUI/Sources/WebAppController.swift      | 20 +++++++++++++++++++
 4 files changed, 32 insertions(+)

diff --git a/Telegram/Telegram-iOS/en.lproj/Localizable.strings b/Telegram/Telegram-iOS/en.lproj/Localizable.strings
index bd9d21d0c2..1ad149bc9c 100644
--- a/Telegram/Telegram-iOS/en.lproj/Localizable.strings
+++ b/Telegram/Telegram-iOS/en.lproj/Localizable.strings
@@ -11616,3 +11616,6 @@ Sorry for the inconvenience.";
 
 "ChannelBoost.NoAds" = "Switch Off Ads";
 "ChannelBoost.EnableNoAdsLevelText" = "Your channel needs **Level %1$@** to switch off ads.";
+
+"WebApp.TermsOfUse" = "Terms of Use";
+"WebApp.TermsOfUse_URL" = "https://telegram.org/tos/mini-apps";
diff --git a/submodules/InstantPageCache/Sources/CachedInternalInstantPages.swift b/submodules/InstantPageCache/Sources/CachedInternalInstantPages.swift
index aa5308d68c..3a3d109d25 100644
--- a/submodules/InstantPageCache/Sources/CachedInternalInstantPages.swift
+++ b/submodules/InstantPageCache/Sources/CachedInternalInstantPages.swift
@@ -48,6 +48,14 @@ public func cachedPrivacyPage(context: AccountContext) -> Signal<ResolvedUrl, No
     return cachedInternalInstantPage(context: context, url: privacyUrl)
 }
 
+public func cachedWebAppTermsPage(context: AccountContext) -> Signal<ResolvedUrl, NoError> {
+    var privacyUrl = context.sharedContext.currentPresentationData.with { $0 }.strings.WebApp_TermsOfUse_URL
+    if privacyUrl == "WebApp.TermsOfUse_URL" || privacyUrl.isEmpty {
+        privacyUrl = "https://telegram.org/tos/mini-apps"
+    }
+    return cachedInternalInstantPage(context: context, url: privacyUrl)
+}
+
 private func cachedInternalInstantPage(context: AccountContext, url: String) -> Signal<ResolvedUrl, NoError> {
     let (cachedUrl, anchor) = extractAnchor(string: url)
     return cachedInstantPage(engine: context.engine, url: cachedUrl)
diff --git a/submodules/WebUI/BUILD b/submodules/WebUI/BUILD
index 3973bdc9fc..9fdbf7604b 100644
--- a/submodules/WebUI/BUILD
+++ b/submodules/WebUI/BUILD
@@ -34,6 +34,7 @@ swift_library(
         "//submodules/Markdown:Markdown",
         "//submodules/TextFormat:TextFormat",
         "//submodules/LocalAuth",
+        "//submodules/InstantPageCache"
     ],
     visibility = [
         "//visibility:public",
diff --git a/submodules/WebUI/Sources/WebAppController.swift b/submodules/WebUI/Sources/WebAppController.swift
index 8ee017bd74..4991caf7a8 100644
--- a/submodules/WebUI/Sources/WebAppController.swift
+++ b/submodules/WebUI/Sources/WebAppController.swift
@@ -23,6 +23,7 @@ import PromptUI
 import PhoneNumberFormat
 import QrCodeUI
 import InstantPageUI
+import InstantPageCache
 import LocalAuth
 
 private let durgerKingBotIds: [Int64] = [5104055776, 2200339955]
@@ -1849,6 +1850,25 @@ public final class WebAppController: ViewController, AttachmentContainable {
                 self?.controllerNode.webView?.reload()
             })))
             
+            items.append(.action(ContextMenuActionItem(text: presentationData.strings.WebApp_TermsOfUse, icon: { theme in
+                return generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Info"), color: theme.contextMenu.primaryColor)
+            }, action: { [weak self] c, _ in
+                c.dismiss(completion: nil)
+                
+                guard let self, let navigationController = self.getNavigationController() else {
+                    return
+                }
+                
+                let context = self.context
+                let _ = (cachedWebAppTermsPage(context: context)
+                |> deliverOnMainQueue).startStandalone(next: { resolvedUrl in
+                    context.sharedContext.openResolvedUrl(resolvedUrl, context: context, urlContext: .generic, navigationController: navigationController, forceExternal: true, openPeer: { peer, navigation in
+                    }, sendFile: nil, sendSticker: nil, requestMessageActionUrlAuth: nil, joinVoiceChat: nil, present: { [weak self] c, arguments in
+                        self?.push(c)
+                    }, dismissInput: {}, contentContext: nil, progress: nil, completion: nil)
+                })
+            })))
+            
             if let _ = attachMenuBot, [.attachMenu, .settings, .generic].contains(source) {
                 items.append(.action(ContextMenuActionItem(text: presentationData.strings.WebApp_RemoveBot, textColor: .destructive, icon: { theme in
                     return generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Delete"), color: theme.contextMenu.destructiveColor)