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/TinyThumbnail/BUILD

@@ -0,0 +1,15 @@
+load("@build_bazel_rules_swift//swift:swift.bzl", "swift_library")
+
+swift_library(
+    name = "TinyThumbnail",
+    module_name = "TinyThumbnail",
+    srcs = glob([
+        "Sources/**/*.swift",
+    ]),
+    copts = [
+        "-warnings-as-errors",
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+)

submodules/TinyThumbnail/Sources/TinyThumbnail.swift

@@ -0,0 +1,35 @@
+import Foundation
+
+private let tinyThumbnailHeaderPattern = Data(base64Encoded: "/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDACgcHiMeGSgjISMtKygwPGRBPDc3PHtYXUlkkYCZlo+AjIqgtObDoKrarYqMyP/L2u71////m8H////6/+b9//j/2wBDASstLTw1PHZBQXb4pYyl+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj/wAARCAAAAAADASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwA=")
+private let tinyThumbnailFooterPattern = Data(base64Encoded: "/9k=")
+
+public func decodeTinyThumbnail(data: Data) -> Data? {
+    if data.count < 3 {
+        return nil
+    }
+    guard let tinyThumbnailHeaderPattern = tinyThumbnailHeaderPattern, let tinyThumbnailFooterPattern = tinyThumbnailFooterPattern else {
+        return nil
+    }
+    var version: UInt8 = 0
+    data.copyBytes(to: &version, count: 1)
+    if version != 1 {
+        return nil
+    }
+    var width: UInt8 = 0
+    var height: UInt8 = 0
+    data.copyBytes(to: &width, from: 1 ..< 2)
+    data.copyBytes(to: &height, from: 2 ..< 3)
+    
+    var resultData = Data()
+    resultData.append(tinyThumbnailHeaderPattern)
+    resultData.append(data.subdata(in: 3 ..< data.count))
+    resultData.append(tinyThumbnailFooterPattern)
+    resultData.withUnsafeMutableBytes { buffer -> Void in
+        guard let resultBytes = buffer.baseAddress?.assumingMemoryBound(to: UInt8.self) else {
+            return
+        }
+        resultBytes[164] = width
+        resultBytes[166] = height
+    }
+    return resultData
+}