vendor: import KillerPDF 1.7.5 source (GPL-3.0) as the base for MMD PDF

2026-08-27 06:58:22 +02:00
commit 532485a830
577 changed files with 149058 additions and 0 deletions
@@ -0,0 +1,65 @@
+using System;
+using System.Diagnostics;
+using Microsoft.Win32;
+
+namespace KillerPDF.Services
+{
+    internal static class ProtocolRegistrar
+    {
+        internal const string Scheme = "killerpdf";
+        private const string RegistryPath = @"Software\Classes\killerpdf";
+
+        internal static void Register() => Register(Registry.CurrentUser, null);
+
+        // #183: machine-wide installs must register under HKLM so every user gets the handler,
+        // not just whoever ran the installer. Root is chosen by the caller; appPath defaults to
+        // the running executable (the per-user refresh path) but the elevated installer passes
+        // the Program Files copy explicitly since IT is the source exe at that moment.
+        internal static void Register(RegistryKey root, string? appPath)
+        {
+            try
+            {
+                appPath ??= Process.GetCurrentProcess().MainModule!.FileName;
+                using var protocol = root.CreateSubKey(RegistryPath);
+                if (protocol == null) return;
+                protocol.SetValue("", "URL:KillerPDF Protocol");
+                protocol.SetValue("URL Protocol", "");
+                using (var icon = protocol.CreateSubKey("DefaultIcon"))
+                    icon?.SetValue("", $"\"{appPath}\",0");
+                using (var command = protocol.CreateSubKey(@"shell\open\command"))
+                    command?.SetValue("", $"\"{appPath}\" \"%1\"");
+            }
+            catch (Exception ex) { Debug.WriteLine($"Failed to register KillerPDF protocol: {ex.Message}"); }
+        }
+
+        internal static void Unregister() => Unregister(Registry.CurrentUser);
+
+        internal static void Unregister(RegistryKey root)
+        {
+            try { root.DeleteSubKeyTree(RegistryPath, false); } catch { }
+        }
+
+        internal static bool TryGetTargetUrl(string? protocolUrl, out Uri? target)
+        {
+            target = null;
+            if (!Uri.TryCreate(protocolUrl, UriKind.Absolute, out var launch) ||
+                !launch.Scheme.Equals(Scheme, StringComparison.OrdinalIgnoreCase) ||
+                !launch.Host.Equals("open", StringComparison.OrdinalIgnoreCase)) return false;
+
+            string query = launch.Query.TrimStart('?');
+            foreach (string pair in query.Split('&'))
+            {
+                int equals = pair.IndexOf('=');
+                if (equals < 0) continue;
+                string name = Uri.UnescapeDataString(pair.Substring(0, equals).Replace("+", " "));
+                if (!name.Equals("url", StringComparison.OrdinalIgnoreCase)) continue;
+                string value = Uri.UnescapeDataString(pair.Substring(equals + 1).Replace("+", " "));
+                if (!Uri.TryCreate(value, UriKind.Absolute, out var parsed)) return false;
+                if (!parsed.Scheme.Equals(Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase)) return false;
+                target = parsed;
+                return true;
+            }
+            return false;
+        }
+    }
+}