Util/Conf.cs

   1 //
   2 // Conf.cs
   3 //
   4 // Copyright (C) 2005 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a copy
   9 // of this software and associated documentation files (the "Software"), to deal
  10 // in the Software without restriction, including without limitation the rights
  11 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 // copies of the Software, and to permit persons to whom the Software is
  13 // furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in all
  16 // copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24 // SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Collections;
  29 using System.IO;
  30 using System.Diagnostics;
  31 using System.Reflection;
  32 using System.Xml.Serialization;
  33 using System.Text.RegularExpressions;
  34
  35 using Beagle.Util;
  36
  37 namespace Beagle.Util {
  38
  39         public class Conf {
  40
  41                 // No instantiation
  42                 private Conf () { }
  43
  44                 public static Hashtable Sections;
  45
  46                 public static IndexingConfig Indexing = null;
  47                 public static DaemonConfig Daemon = null;
  48                 public static SearchingConfig Searching = null;
  49
  50                 private static string configs_dir;
  51                 private static Hashtable mtimes;
  52                 private static Hashtable subscriptions;
  53
  54                 private static bool watching_for_updates;
  55                 private static bool update_watch_present;
  56
  57                 private static BindingFlags method_search_flags = BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.InvokeMethod;
  58
  59                 public delegate void ConfigUpdateHandler (Section section);
  60
  61                 static Conf ()
  62                 {
  63                         Sections = new Hashtable (3);
  64                         mtimes = new Hashtable (3);
  65                         subscriptions = new Hashtable (3);
  66
  67                         configs_dir = Path.Combine (PathFinder.StorageDir, "config");
  68                         if (!Directory.Exists (configs_dir))
  69                                 Directory.CreateDirectory (configs_dir);
  70
  71                         Conf.Load ();
  72                 }
  73
  74                 public static void WatchForUpdates ()
  75                 {
  76                         // Make sure we don't try and watch for updates more than once
  77                         if (update_watch_present)
  78                                 return;
  79
  80                         if (Inotify.Enabled) {
  81                                 Inotify.Subscribe (configs_dir, OnInotifyEvent, Inotify.EventType.Create | Inotify.EventType.CloseWrite);
  82                         } else {
  83                                 // Poll for updates every 60 secs
  84                                 GLib.Timeout.Add (60000, new GLib.TimeoutHandler (CheckForUpdates));
  85                         }
  86
  87                         update_watch_present = true;
  88                 }
  89
  90                 private static void OnInotifyEvent (Inotify.Watch watch, string path, string subitem, string srcpath, Inotify.EventType type)
  91                 {
  92                         if (subitem == "" || watching_for_updates == false)
  93                                 return;
  94
  95                         Load ();
  96                 }
  97
  98                 private static bool CheckForUpdates ()
  99                 {
 100                         if (watching_for_updates)
 101                                 Load ();
 102                         return true;
 103                 }
 104
 105                 public static void Subscribe (Type type, ConfigUpdateHandler callback)
 106                 {
 107                         if (!subscriptions.ContainsKey (type))
 108                                 subscriptions.Add (type, new ArrayList (1));
 109
 110                         ArrayList callbacks = (ArrayList) subscriptions [type];
 111                         callbacks.Add (callback);
 112                 }
 113
 114                 private static void NotifySubscribers (Section section)
 115                 {
 116                         Type type = section.GetType ();
 117                         ArrayList callbacks = (ArrayList) subscriptions [type];
 118
 119                         if (callbacks == null)
 120                                 return;
 121
 122                         foreach (ConfigUpdateHandler callback in callbacks)
 123                                 callback (section);
 124                 }
 125
 126                 public static void Load ()
 127                 {
 128                         Load (false);
 129                 }
 130
 131                 public static void Load (bool force)
 132                 {
 133                         Section temp;
 134
 135                         // FIXME: Yeah
 136                         LoadFile (typeof (IndexingConfig), Indexing, out temp, force);
 137                         Indexing = (IndexingConfig) temp;
 138                         NotifySubscribers (Indexing);
 139
 140                         LoadFile (typeof (DaemonConfig), Daemon, out temp, force);
 141                         Daemon = (DaemonConfig) temp;
 142                         NotifySubscribers (Daemon);
 143
 144                         LoadFile (typeof (SearchingConfig), Searching, out temp, force);
 145                         Searching = (SearchingConfig) temp;
 146                         NotifySubscribers (Searching);
 147
 148                         watching_for_updates = true;
 149                 }
 150
 151                 public static void Save ()
 152                 {
 153                         Save (false);
 154                 }
 155
 156                 public static void Save (bool force)
 157                 {
 158                         foreach (Section section in Sections.Values)
 159                                 if (force || section.SaveNeeded)
 160                                         SaveFile (section);
 161                 }
 162
 163                 private static bool LoadFile (Type type, Section current, out Section section, bool force)
 164                 {
 165                         section = current;
 166                         object [] attrs = Attribute.GetCustomAttributes (type, typeof (ConfigSection));
 167                         if (attrs.Length == 0)
 168                                 throw new ConfigException ("Could not find ConfigSection attribute on " + type);
 169
 170                         string sectionname = ((ConfigSection) attrs [0]).Name;
 171                         string filename = sectionname + ".xml";
 172                         string filepath = Path.Combine (configs_dir, filename);
 173                         if (!File.Exists (filepath)) {
 174                                 if (current == null)
 175                                         ConstructDefaultSection (type, sectionname, out section);
 176                                 return false;
 177                         }
 178
 179                         if (!force && current != null && mtimes.ContainsKey (sectionname) &&
 180                                         File.GetLastWriteTimeUtc (filepath).CompareTo ((DateTime) mtimes [sectionname]) <= 0)
 181                                 return false;
 182
 183                         Logger.Log.Debug ("Loading {0} from {1}", type, filename);
 184                         FileStream fs = null;
 185
 186                         try {
 187                                 fs = File.Open (filepath, FileMode.Open, FileAccess.Read, FileShare.Read);
 188                                 XmlSerializer serializer = new XmlSerializer (type);
 189                                 section = (Section) serializer.Deserialize (fs);
 190                         } catch (Exception e) {
 191                                 Logger.Log.Error (e, "Could not load configuration from {0}:", filename);
 192                                 if (fs != null)
 193                                         fs.Close ();
 194                                 if (current == null)
 195                                         ConstructDefaultSection (type, sectionname, out section);
 196                                 return false;
 197                         }
 198
 199                         fs.Close ();
 200                         Sections.Remove (sectionname);
 201                         Sections.Add (sectionname, section);
 202                         mtimes.Remove (sectionname);
 203                         mtimes.Add (sectionname, File.GetLastWriteTimeUtc (filepath));
 204                         return true;
 205                 }
 206
 207                 private static bool SaveFile (Section section)
 208                 {
 209                         Type type = section.GetType ();
 210                         object [] attrs = Attribute.GetCustomAttributes (type, typeof (ConfigSection));
 211                         if (attrs.Length == 0)
 212                                 throw new ConfigException ("Could not find ConfigSection attribute on " + type);
 213
 214                         string sectionname = ((ConfigSection) attrs [0]).Name;
 215                         string filename = sectionname + ".xml";
 216                         string filepath = Path.Combine (configs_dir, filename);
 217
 218                         Logger.Log.Debug ("Saving {0} to {1}", type, filename);
 219                         FileStream fs = null;
 220
 221                         try {
 222                                 watching_for_updates = false;
 223                                 fs = new FileStream (filepath, FileMode.Create);
 224                                 XmlSerializer serializer = new XmlSerializer (type);
 225                                 XmlFu.SerializeUtf8 (serializer, fs, section);
 226                         } catch (Exception e) {
 227                                 if (fs != null)
 228                                         fs.Close ();
 229                                 Logger.Log.Error ("Could not save configuration to {0}: {1}", filename, e);
 230                                 watching_for_updates = true;
 231                                 return false;
 232                         }
 233
 234                         fs.Close ();
 235                         mtimes.Remove (sectionname);
 236                         mtimes.Add (sectionname, File.GetLastWriteTimeUtc (filepath));
 237                         watching_for_updates = true;
 238                         return true;
 239                 }
 240
 241                 private static void ConstructDefaultSection (Type type, string sectionname, out Section section)
 242                 {
 243                         ConstructorInfo ctor = type.GetConstructor (Type.EmptyTypes);
 244                         section = (Section) ctor.Invoke (null);
 245                         Sections.Remove (sectionname);
 246                         Sections.Add (sectionname, section);
 247                 }
 248
 249                 // Lists all config file options in a hash table where key is option name,
 250                 // and value is description.
 251                 public static Hashtable GetOptions (Section section)
 252                 {
 253                         Hashtable options = new Hashtable ();
 254                         MemberInfo [] members = section.GetType ().GetMembers (method_search_flags);
 255
 256                         // Find all of the methods ("options") inside the specified section
 257                         // object which have the ConfigOption attribute.
 258                         foreach (MemberInfo member in members) {
 259                                 object [] attrs = member.GetCustomAttributes (typeof (ConfigOption), false);
 260                                 if (attrs.Length > 0)
 261                                         options.Add (member.Name, ((ConfigOption) attrs [0]).Description);
 262                         }
 263
 264                         return options;
 265                 }
 266
 267                 public static bool InvokeOption (Section section, string option, string [] args, out string output)
 268                 {
 269                         MethodInfo method = section.GetType ().GetMethod (option, method_search_flags);
 270                         if (method == null) {
 271                                 string msg = String.Format ("No such method '{0}' for section '{1}'", option, section);
 272                                 throw new ConfigException(msg);
 273                         }
 274                         object [] attrs = method.GetCustomAttributes (typeof (ConfigOption), false);
 275                         if (attrs.Length == 0) {
 276                                 string msg = String.Format ("Method '{0}' is not a configurable option", option);
 277                                 throw new ConfigException (msg);
 278                         }
 279
 280                         // Check the required number of parameters have been provided
 281                         ConfigOption attr = (ConfigOption) attrs [0];
 282                         if (attr.Params > 0 && args.Length < attr.Params) {
 283                                 string msg = String.Format ("Option '{0}' requires {1} parameter(s): {2}", option, attr.Params, attr.ParamsDescription);
 284                                 throw new ConfigException (msg);
 285                         }
 286
 287                         object [] methodparams = { null, args };
 288                         bool result = (bool) method.Invoke (section, methodparams);
 289                         output = (string) methodparams [0];
 290
 291                         // Mark the section as save-needed if we just changed something
 292                         if (result && attr.IsMutator)
 293                                 section.SaveNeeded = true;
 294
 295                         return result;
 296                 }
 297
 298                 [ConfigSection (Name="searching")]
 299                 public class SearchingConfig : Section {
 300
 301                         private KeyBinding show_search_window_binding = new KeyBinding ("F12");
 302                         public KeyBinding ShowSearchWindowBinding {
 303                                 get { return show_search_window_binding; }
 304                                 set { show_search_window_binding = value; }
 305                         }
 306
 307                         // BeagleSearch window position and dimension
 308                         // stored as percentage of screen co-ordinates
 309                         // to deal with change of resolution problem - hints from tberman
 310
 311                         private float beagle_search_pos_x = 0;
 312                         public float BeaglePosX {
 313                                 get { return beagle_search_pos_x; }
 314                                 set { beagle_search_pos_x = value; }
 315                         }
 316
 317                         private float beagle_search_pos_y = 0;
 318                         public float BeaglePosY {
 319                                 get { return beagle_search_pos_y; }
 320                                 set { beagle_search_pos_y = value; }
 321                         }
 322
 323                         private float beagle_search_width = 0;
 324                         public float BeagleSearchWidth {
 325                                 get { return beagle_search_width; }
 326                                 set { beagle_search_width = value; }
 327                         }
 328
 329                         private float beagle_search_height = 0;
 330                         public float BeagleSearchHeight {
 331                                 get { return beagle_search_height; }
 332                                 set { beagle_search_height = value; }
 333                         }
 334
 335                         // ah!We want a Queue but Queue doesnt serialize *easily*
 336                         private ArrayList search_history = new ArrayList ();
 337                         public ArrayList SearchHistory {
 338                                 get { return search_history; }
 339                                 set { search_history = value; }
 340                         }
 341
 342                         private bool beagle_search_auto_search = true;
 343                         public bool BeagleSearchAutoSearch {
 344                                 get { return beagle_search_auto_search; }
 345                                 set { beagle_search_auto_search = value; }
 346                         }
 347
 348                 }
 349
 350                 [ConfigSection (Name="daemon")]
 351                 public class DaemonConfig : Section {
 352                         private ArrayList static_queryables = new ArrayList ();
 353                         public ArrayList StaticQueryables {
 354                                 get { return static_queryables; }
 355                                 set { static_queryables = value; }
 356                         }
 357
 358                         // By default, every backend is allowed.
 359                         // Only maintain a list of denied backends.
 360                         private ArrayList denied_backends = new ArrayList ();
 361                         public ArrayList DeniedBackends {
 362                                 get { return denied_backends; }
 363                                 set { denied_backends = value; }
 364                         }
 365
 366                         private bool allow_static_backend = false; // by default, false
 367                         public bool AllowStaticBackend {
 368                                 get { return allow_static_backend; }
 369                                 // Don't really want to expose this, but serialization requires it
 370                                 set { allow_static_backend = value; }
 371                         }
 372
 373                         private bool index_synchronization = true;
 374                         public bool IndexSynchronization {
 375                                 get { return index_synchronization; }
 376                                 // Don't really want to expose this, but serialization requires it
 377                                 set { index_synchronization = value; }
 378                         }
 379
 380                         [ConfigOption (Description="Enable a backend", Params=1, ParamsDescription="Name of the backend to enable")]
 381                         internal bool AllowBackend (out string output, string [] args)
 382                         {
 383                                 denied_backends.Remove (args [0]);
 384                                 output = "Backend allowed (need to restart beagled for changes to take effect).";
 385                                 return true;
 386                         }
 387
 388                         [ConfigOption (Description="Disable a backend", Params=1, ParamsDescription="Name of the backend to disable")]
 389                         internal bool DenyBackend (out string output, string [] args)
 390                         {
 391                                 denied_backends.Add (args [0]);
 392                                 output = "Backend disabled (need to restart beagled for changes to take effect).";
 393                                 return true;
 394                         }
 395
 396                         private bool allow_root = false;
 397                         public bool AllowRoot {
 398                                 get { return allow_root; }
 399                                 set { allow_root = value; }
 400                         }
 401
 402                         [ConfigOption (Description="Add a static queryable", Params=1, ParamsDescription="Index path")]
 403                         internal bool AddStaticQueryable (out string output, string [] args)
 404                         {
 405                                 static_queryables.Add (args [0]);
 406                                 output = "Static queryable added.";
 407                                 return true;
 408                         }
 409
 410                         [ConfigOption (Description="Remove a static queryable", Params=1, ParamsDescription="Index path")]
 411                         internal bool DelStaticQueryable (out string output, string [] args)
 412                         {
 413                                 static_queryables.Remove (args [0]);
 414                                 output = "Static queryable removed.";
 415                                 return true;
 416                         }
 417
 418                         [ConfigOption (Description="List user-specified static queryables", IsMutator=false)]
 419                         internal bool ListStaticQueryables (out string output, string [] args)
 420                         {
 421                                 output = "User-specified static queryables:\n";
 422                                 foreach (string index_path in static_queryables)
 423                                         output += String.Format (" - {0}\n", index_path);
 424                                 return true;
 425                         }
 426
 427                         [ConfigOption (Description="Toggles whether static indexes will be enabled")]
 428                         internal bool ToggleAllowStaticBackend (out string output, string [] args)
 429                         {
 430                                 allow_static_backend = !allow_static_backend;
 431                                 output = "Static indexes are " + ((allow_static_backend) ? "enabled" : "disabled") + " (need to restart beagled for changes to take effect).";
 432                                 return true;
 433                         }
 434
 435                         [ConfigOption (Description="Toggles whether your indexes will be synchronized locally if your home directory is on a network device (eg. NFS/Samba)")]
 436                         internal bool ToggleIndexSynchronization (out string output, string [] args)
 437                         {
 438                                 index_synchronization = !index_synchronization;
 439                                 output = "Index Synchronization is " + ((index_synchronization) ? "enabled" : "disabled") + ".";
 440                                 return true;
 441                         }
 442
 443                         [ConfigOption (Description="Toggles whether Beagle can be run as root")]
 444                         internal bool ToggleAllowRoot (out string output, string [] args)
 445                         {
 446                                 allow_root = ! allow_root;
 447                                 if (allow_root)
 448                                         output = "Beagle is now permitted to run as root";
 449                                 else
 450                                         output = "Beagle is no longer permitted to run as root";
 451                                 return true;
 452                         }
 453                 }
 454
 455                 [ConfigSection (Name="indexing")]
 456                 public class IndexingConfig : Section
 457                 {
 458                         private ArrayList roots = new ArrayList ();
 459                         [XmlArray]
 460                         [XmlArrayItem(ElementName="Root", Type=typeof(string))]
 461                         public ArrayList Roots {
 462                                 get { return roots; }
 463                                 set { roots = value; }
 464                         }
 465
 466                         private bool index_home_dir = true;
 467                         public bool IndexHomeDir {
 468                                 get { return index_home_dir; }
 469                                 set { index_home_dir = value; }
 470                         }
 471
 472                         private bool index_on_battery = true;
 473                         public bool IndexOnBattery {
 474                                 get { return index_on_battery; }
 475                                 set { index_on_battery = value; }
 476                         }
 477
 478                         private ArrayList excludes = new ArrayList ();
 479                         [XmlArray]
 480                         [XmlArrayItem (ElementName="ExcludeItem", Type=typeof(ExcludeItem))]
 481                         public ArrayList Excludes {
 482                                 get { return excludes; }
 483                                 set { excludes = value; }
 484                         }
 485
 486                         [ConfigOption (Description="List the indexing roots", IsMutator=false)]
 487                         internal bool ListRoots (out string output, string [] args)
 488                         {
 489                                 output = "Current roots:\n";
 490                                 if (this.index_home_dir == true)
 491                                         output += " - Your home directory\n";
 492                                 foreach (string root in roots)
 493                                         output += " - " + root + "\n";
 494
 495                                 return true;
 496                         }
 497
 498                         [ConfigOption (Description="Toggles whether your home directory is to be indexed as a root")]
 499                         internal bool IndexHome (out string output, string [] args)
 500                         {
 501                                 if (index_home_dir)
 502                                         output = "Your home directory will not be indexed.";
 503                                 else
 504                                         output = "Your home directory will be indexed.";
 505                                 index_home_dir = !index_home_dir;
 506                                 return true;
 507                         }
 508
 509                         [ConfigOption (Description="Toggles whether any data should be indexed if the system is on battery")]
 510                         internal bool IndexWhileOnBattery (out string output, string [] args)
 511                         {
 512                                 if (index_on_battery)
 513                                         output = "Data will not be indexed while on battery.";
 514                                 else
 515                                         output = "Data will be indexed while on battery.";
 516                                 index_on_battery = !index_on_battery;
 517                                 return true;
 518                         }
 519
 520                         [ConfigOption (Description="Add a root path to be indexed", Params=1, ParamsDescription="A path")]
 521                         internal bool AddRoot (out string output, string [] args)
 522                         {
 523                                 roots.Add (args [0]);
 524                                 output = "Root added.";
 525                                 return true;
 526                         }
 527
 528                         [ConfigOption (Description="Remove an indexing root", Params=1, ParamsDescription="A path")]
 529                         internal bool DelRoot (out string output, string [] args)
 530                         {
 531                                 roots.Remove (args [0]);
 532                                 output = "Root removed.";
 533                                 return true;
 534                         }
 535
 536                         [ConfigOption (Description="List user-specified resources to be excluded from indexing", IsMutator=false)]
 537                         internal bool ListExcludes (out string output, string [] args)
 538                         {
 539                                 output = "User-specified resources to be excluded from indexing:\n";
 540                                 foreach (ExcludeItem exclude_item in excludes)
 541                                         output += String.Format (" - [{0}] {1}\n", exclude_item.Type.ToString (), exclude_item.Value);
 542                                 return true;
 543                         }
 544
 545                         [ConfigOption (Description="Add a resource to exclude from indexing", Params=2, ParamsDescription="A type [path/pattern/mailfolder], a path/pattern/name")]
 546                         internal bool AddExclude (out string output, string [] args)
 547                         {
 548                                 ExcludeType type;
 549                                 try {
 550                                         type = (ExcludeType) Enum.Parse (typeof (ExcludeType), args [0], true);
 551                                 } catch {
 552                                         output = String.Format("Invalid type '{0}'. Valid types: Path, Pattern, MailFolder", args [0]);
 553                                         return false;
 554                                 }
 555
 556                                 excludes.Add (new ExcludeItem (type, args [1]));
 557                                 output = "Exclude added.";
 558                                 return true;
 559                         }
 560
 561                         [ConfigOption (Description="Remove an excluded resource", Params=2, ParamsDescription="A type [path/pattern/mailfolder], a path/pattern/name")]
 562                         internal bool DelExclude (out string output, string [] args)
 563                         {
 564                                 ExcludeType type;
 565                                 try {
 566                                         type = (ExcludeType) Enum.Parse (typeof (ExcludeType), args [0], true);
 567                                 } catch {
 568                                         output = String.Format("Invalid type '{0}'. Valid types: Path, Pattern, MailFolder", args [0]);
 569                                         return false;
 570                                 }
 571
 572                                 foreach (ExcludeItem item in excludes) {
 573                                         if (item.Type != type || item.Value != args [1])
 574                                                 continue;
 575                                         excludes.Remove (item);
 576                                         output = "Exclude removed.";
 577                                         return true;
 578                                 }
 579
 580                                 output = "Could not find requested exclude to remove.";
 581                                 return false;
 582                         }
 583
 584                 }
 585
 586                 public class Section {
 587                         [XmlIgnore]
 588                         public bool SaveNeeded = false;
 589                 }
 590
 591                 private class ConfigOption : Attribute {
 592                         public string Description;
 593                         public int Params;
 594                         public string ParamsDescription;
 595                         public bool IsMutator = true;
 596                 }
 597
 598                 private class ConfigSection : Attribute {
 599                         public string Name;
 600                 }
 601
 602                 public class ConfigException : Exception {
 603                         public ConfigException (string msg) : base (msg) { }
 604                 }
 605
 606         }
 607
 608         //////////////////////////////////////////////////////////////////////
 609
 610         public enum ExcludeType {
 611                 Path,
 612                 Pattern,
 613                 MailFolder
 614         }
 615
 616         public class ExcludeItem {
 617
 618                 private ExcludeType type;
 619                 private string val;
 620
 621                 [XmlAttribute]
 622                 public ExcludeType Type {
 623                         get { return type; }
 624                         set { type = value; }
 625                 }
 626
 627                 private string exactMatch;
 628                 private string prefix;
 629                 private string suffix;
 630                 private Regex  regex;
 631
 632                 [XmlAttribute]
 633                 public string Value {
 634                         get { return val; }
 635                         set {
 636                                 switch (type) {
 637                                 case ExcludeType.Path:
 638                                 case ExcludeType.MailFolder:
 639                                         prefix = value;
 640                                         break;
 641
 642                                 case ExcludeType.Pattern:
 643                                         if (value.StartsWith ("/") && value.EndsWith ("/")) {
 644                                                 regex = new Regex (value.Substring (1, value.Length - 2));
 645                                                 break;
 646                                         }
 647
 648                                         int i = value.IndexOf ('*');
 649                                         if (i == -1) {
 650                                                 exactMatch = value;
 651                                         } else {
 652                                                 if (i > 0)
 653                                                         prefix = value.Substring (0, i);
 654                                                 if (i < value.Length-1)
 655                                                         suffix = value.Substring (i+1);
 656                                         }
 657                                         break;
 658                                 }
 659
 660                                 val = value;
 661                         }
 662                 }
 663
 664                 public ExcludeItem () {}
 665
 666                 public ExcludeItem (ExcludeType type, string value) {
 667                         this.Type = type;
 668                         this.Value = value;
 669                 }
 670
 671                 public bool IsMatch (string param)
 672                 {
 673                         switch (Type) {
 674                         case ExcludeType.Path:
 675                         case ExcludeType.MailFolder:
 676                                 if (prefix != null && ! param.StartsWith (prefix))
 677                                         return false;
 678
 679                                 return true;
 680
 681                         case ExcludeType.Pattern:
 682                                 if (exactMatch != null)
 683                                         return param == exactMatch;
 684                                 if (prefix != null && ! param.StartsWith (prefix))
 685                                         return false;
 686                                 if (suffix != null && ! param.EndsWith (suffix))
 687                                         return false;
 688                                 if (regex != null && ! regex.IsMatch (param))
 689                                         return false;
 690
 691                                 return true;
 692                         }
 693
 694                         return false;
 695                 }
 696
 697                 public override bool Equals (object obj)
 698                 {
 699                         ExcludeItem exclude = obj as ExcludeItem;
 700                         return (exclude != null && exclude.Type == type && exclude.Value == val);
 701                 }
 702
 703                 public override int GetHashCode ()
 704                 {
 705                         return (this.Value.GetHashCode () ^ (int) this.Type);
 706                 }
 707
 708         }
 709
 710         //////////////////////////////////////////////////////////////////////
 711
 712         public class KeyBinding {
 713                 public string Key;
 714
 715                 [XmlAttribute]
 716                 public bool Ctrl = false;
 717                 [XmlAttribute]
 718                 public bool Alt = false;
 719
 720                 public KeyBinding () {}
 721                 public KeyBinding (string key) : this (key, false, false) {}
 722
 723                 public KeyBinding (string key, bool ctrl, bool alt)
 724                 {
 725                         Key = key;
 726                         Ctrl = ctrl;
 727                         Alt = alt;
 728                 }
 729
 730                 public override string ToString ()
 731                 {
 732                         string result = "";
 733
 734                         if (Ctrl)
 735                                 result += "<Ctrl>";
 736                         if (Alt)
 737                                 result += "<Alt>";
 738
 739                         result += Key;
 740
 741                         return result;
 742                 }
 743
 744                 public string ToReadableString ()
 745                 {
 746                         return ToString ().Replace (">", "-").Replace ("<", "");
 747                 }
 748         }
 749 }