GLEGram 12.5 — Initial public release

Based on Swiftgram 12.5 (Telegram iOS 12.5).
All GLEGram features ported and organized in GLEGram/ folder.

Features: Ghost Mode, Saved Deleted Messages, Content Protection Bypass,
Font Replacement, Fake Profile, Chat Export, Plugin System, and more.

See CHANGELOG_12.5.md for full details.

submodules/TelegramCore/Sources/TelegramEngine/Peers/ToggleChannelSignatures.swift

@@ -0,0 +1,25 @@
+import Foundation
+import Postbox
+import SwiftSignalKit
+import TelegramApi
+import MtProtoKit
+
+
+func _internal_toggleShouldChannelMessagesSignatures(account: Account, peerId: PeerId, signaturesEnabled: Bool, profilesEnabled: Bool) -> Signal<Void, NoError> {
+    return account.postbox.transaction { transaction -> Signal<Void, NoError> in
+        if let peer = transaction.getPeer(peerId) as? TelegramChannel, let inputChannel = apiInputChannel(peer) {
+            var flags: Int32 = 0
+            if signaturesEnabled {
+                flags |= 1 << 0
+            }
+            if profilesEnabled {
+                flags |= 1 << 1
+            }
+            return account.network.request(Api.functions.channels.toggleSignatures(flags: flags, channel: inputChannel)) |> retryRequest |> map { updates -> Void in
+                account.stateManager.addUpdates(updates)
+            }
+        } else {
+            return .complete()
+        }
+    } |> switchToLatest
+}