Add ConfigLoader.cs

Author: HashidaTKS

RepostConfirmationCanceler/ConfigLoader.cs

@@ -0,0 +1,166 @@
+using Microsoft.Win32;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RepostConfirmationCanceler
+{
+    internal class Section
+    {
+        public string Name;
+        public bool Disabled = false;
+        public bool WarningWhenCloseDialog = false;
+        public StringBuilder ExcludeGroups = new StringBuilder();
+        public StringBuilder Excludes = new StringBuilder();
+        public StringBuilder Patterns = new StringBuilder();
+
+        public Section(string name)
+        {
+            Name = name;
+        }
+    }
+
+    internal class Config
+    {
+        public bool IgnoreQueryString = false;
+        public bool OnlyMainFrame = false;
+        public List<Section> SectionList = new List<Section>();
+
+        public Section GetEdgeSection()
+        {
+            return SectionList.FirstOrDefault(_ => _.Name.ToLowerInvariant() == "[edge]");
+        }
+    }
+
+    internal static class ConfigLoader
+    {
+        internal static Config LoadConfig()
+        {
+            var ruleFilePath = GetRulefilePath();
+            if (string.IsNullOrEmpty(ruleFilePath))
+            {
+                Console.Error.WriteLine("Rulefile path is not set in the registry.");
+                return new Config();
+            }
+            using (var fileStream = new FileStream(ruleFilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
+            using (var streamReader = new StreamReader(fileStream, Encoding.UTF8, true, 1024, true))
+            {   
+                string data = streamReader.ReadToEnd();
+                return ParseConf(data);
+            }
+        }
+
+        internal static string GetRulefilePath()
+        {
+            const string registryPath = @"SOFTWARE\RepostConfirmationCanceler";
+            const string valueName = "Rulefile";
+            try
+            {
+                using (RegistryKey key = Registry.LocalMachine.OpenSubKey(registryPath))
+                {
+                    if (key == null)
+                    {
+                        Console.Error.WriteLine($"cannot read {registryPath}: key not found");
+                        return null;
+                    }
+                    object value = key.GetValue(valueName);
+                    if (value is string rulefile)
+                    {
+                        return rulefile;
+                    }
+                    else
+                    {
+                        Console.Error.WriteLine($"cannot read {registryPath}: 'Rulefile' not found or not string");
+                        return null;
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.Error.WriteLine($"cannot read {registryPath}: {ex.Message}");
+                return null;
+            }
+        }
+
+        internal static Config ParseConf(string data)
+        {
+            var conf = new Config();
+            bool global = false;
+            Section section = null;
+
+            var lines = data.Split(new[] { "\r\n", "\n" }, StringSplitOptions.None);
+            foreach (var rawLine in lines)
+            {
+                string line = rawLine.Trim();
+                if (string.IsNullOrEmpty(line))
+                    continue;
+
+                switch (line[0])
+                {
+                    case ';':
+                    case '#':
+                        // コメント行
+                        break;
+                    case '[':
+                        global = false;
+                        if (line == "[GLOBAL]")
+                        {
+                            global = true;
+                        }
+                        else
+                        {
+                            // 新しいセクション追加
+                            section = new Section(line);
+                            conf.SectionList.Add(section);
+                        }
+                        break;
+                    case '@':
+                        if (global)
+                        {
+                            if (line == "@TOP_PAGE_ONLY")
+                            {
+                                conf.IgnoreQueryString = true;
+                            }
+                            else if (line == "@ONLY_MAIN_FRAME")
+                            {
+                                conf.OnlyMainFrame = true;
+                            }
+                        }
+                        else if (section != null)
+                        {
+                            if (line == "@DISABLED")
+                            {
+                                section.Disabled = true;
+                            }
+                            else if (line == "@WARNING_WHEN_CLOSE_DIALOG")
+                            {
+                                section.WarningWhenCloseDialog = true;
+                            }
+                            else if (line.StartsWith("@EXCLUDE_GROUP:"))
+                            {
+                                section.ExcludeGroups.Append(line.Substring("@EXCLUDE_GROUP:".Length));
+                                section.ExcludeGroups.Append('\n');
+                            }
+                        }
+                        break;
+                    case '-':
+                        if (section != null && !line.StartsWith("-#"))
+                        {
+                            section.Excludes.AppendLine(line);
+                        }
+                        break;
+                    default:
+                        if (section != null)
+                        {
+                            section.Patterns.AppendLine(line);
+                        }
+                        break;
+                }
+            }
+            return conf;
+        }
+    }
+}