From 9700e3678e1a683c99291cd244f6370308bd5ff6 Mon Sep 17 00:00:00 2001
From: Michael Zucci <zucchi@src.gnome.org>
Date: Tue, 17 May 2005 06:01:47 +0000
Subject: 	Initial work on hand-bindings for mono plugins

svn path=/trunk/; revision=29375
---
 plugins/mono/Camel.cs | 1223 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1223 insertions(+)
 create mode 100644 plugins/mono/Camel.cs

(limited to 'plugins/mono/Camel.cs')

diff --git a/plugins/mono/Camel.cs b/plugins/mono/Camel.cs
new file mode 100644
index 0000000000..d14158edfc
--- /dev/null
+++ b/plugins/mono/Camel.cs
@@ -0,0 +1,1223 @@
+
+using System;
+using System.Collections;
+using System.ComponentModel;
+using System.Runtime.InteropServices;
+
+namespace Camel {
+	[StructLayout (LayoutKind.Sequential)]
+	public struct CamelException {
+		public int id;
+		public string desc;
+	}
+
+	public class Arg {
+		public enum Tag : uint {
+			END = 0,
+			IGNORE = 1,
+			FIRST = 1024,
+
+			TYPE = 0xf0000000, /* type field for tags */
+			TAG = 0x0fffffff, /* tag field for args */
+
+			OBJ = 0x00000000, /* object */
+			INT = 0x10000000, /* int */
+			DBL = 0x20000000, /* double */
+			STR = 0x30000000, /* c string */
+			PTR = 0x40000000, /* ptr */
+			BOO = 0x50000000 /* bool */
+		}
+	}
+
+	public class Exception : System.ApplicationException {
+		public enum Type {
+			NONE = 0,
+			SYSTEM = 1
+		}
+
+		public Type id;
+		public string desc;
+
+		public Exception(CamelException ex) {
+			id = (Type)ex.id;
+			desc = ex.desc;
+		}
+
+		public Exception(Type _id, string _desc) {
+			id = _id;
+			desc = _desc;
+		}
+	}
+
+	public class Util {
+		[DllImport("camel-1.2")] static extern int camel_init(string certdir, bool nss);
+
+		public static void Init(string certdir, bool nss) {
+			if (camel_init(certdir, nss) != 0)
+				throw new Exception(Exception.Type.SYSTEM, "Init failure");
+		}
+
+		public static string [] getUIDArray(IntPtr o) {
+			GPtrArray pa = (GPtrArray)Marshal.PtrToStructure(o, typeof(GPtrArray));
+			string [] uids = new string[pa.len];
+
+			for (int i=0;i<pa.len;i++) {
+				IntPtr x = Marshal.ReadIntPtr(pa.pdata, i * Marshal.SizeOf(typeof(IntPtr)));
+				uids[i] = Marshal.PtrToStringAuto(x);
+			}
+
+			return uids;
+		}
+/*
+		public static IntPtr setUIDs(string [] uids) {
+			
+		}
+*/
+		public struct UIDArray {
+			public string [] uids;
+			public int len;
+
+			public UIDArray(string [] _uids) {
+				uids = _uids;
+				len = _uids.Length;
+			}
+			
+			public UIDArray(IntPtr raw) {
+				uids = new string[0];
+				len = 0;
+				Marshal.PtrToStructure(raw, this);
+			}
+		}
+	}
+
+	public class Object {
+		// should be library scope
+		public IntPtr cobject;
+		private int finaliseID = -1;
+
+		protected EventHandlerList events = new EventHandlerList();
+
+		// reffing & wrapping stuff.
+		struct CamelObject {
+			public IntPtr klass;
+		}
+
+		struct CamelObjectClass {
+			public IntPtr parent;
+			int magic;
+			IntPtr next;
+			IntPtr prev;
+			public string name;
+		};
+
+		private static Hashtable types = new Hashtable();
+		private static Hashtable objects = new Hashtable();
+
+		[DllImport("camel-1.2")] static extern void camel_object_ref(IntPtr raw);
+		[DllImport("camel-1.2")] static extern void camel_object_unref(IntPtr raw);
+
+		public Object(IntPtr raw) {
+			// ok this is a hack around c# crap to do with unargumented constructors.
+			// we can bypass to a null raw so we can properly instantiate new types
+			if (raw != (IntPtr)0) {
+				cobject = raw;
+				toCamel(this);
+			}
+		}
+
+		public Object() {
+			// this is invalid?
+		}
+
+		~Object() {
+			System.Console.WriteLine("object disposed " + cobject + " type " + this);
+
+			// well we can never get a finalised event anyway ...
+			if (finalise_id != -1)
+				camel_object_remove_event(cobject, finalise_id);
+			if (meta_changed_id != -1)
+				camel_object_remove_event(cobject, meta_changed_id);
+
+			objects.Remove(cobject);
+			camel_object_remove_event(cobject, finaliseID);
+			finaliseID = -1;
+			camel_object_unref(cobject);
+			cobject = (IntPtr)0;
+
+			// FIXME: remove any event hooks too
+		}
+
+		static Object() {
+			types.Add("CamelObject", typeof(Camel.Object));
+			types.Add("CamelSession", typeof(Camel.Session));
+			types.Add("CamelFolder", typeof(Camel.Folder));
+			types.Add("CamelDataWrapper", typeof(Camel.DataWrapper));
+			types.Add("CamelMedium", typeof(Camel.Medium));
+			types.Add("CamelMimeMessage", typeof(Camel.MimeMessage));
+			types.Add("CamelMimePart", typeof(Camel.MimePart));
+			// camelmultipart?
+			types.Add("CamelStore", typeof(Camel.Store));
+			types.Add("CamelTransport", typeof(Camel.Transport));
+			types.Add("CamelAddress", typeof(Camel.Address));
+			types.Add("CamelInternetAddress", typeof(Camel.InternetAddress));
+			types.Add("CamelStream", typeof(Camel.Stream));
+			types.Add("CamelStreamMem", typeof(Camel.StreamMem));
+			types.Add("CamelStreamFs", typeof(Camel.StreamFS));
+		}
+
+		public static void objectFinalised(IntPtr o, IntPtr info, IntPtr data) {
+			System.Console.WriteLine("object finalised " + o);
+			objects.Remove(o);
+		}
+
+		public static Object fromCamel(IntPtr raw) {
+			CamelObject o;
+			CamelObjectClass klass;
+			WeakReference weak = (WeakReference)objects[raw];
+
+			System.Console.WriteLine("object from camel " + raw);
+
+			if (weak != null)
+				return (Object)weak.Target;
+
+			o = (CamelObject)Marshal.PtrToStructure(raw, typeof(CamelObject));
+			if ((object)o == null)
+				return null;
+
+			klass = (CamelObjectClass)Marshal.PtrToStructure(o.klass, typeof(CamelObjectClass));
+			while ((object)klass != null) {
+				Console.WriteLine(" checking is " + klass.name);
+				if (types.ContainsKey(klass.name)) {
+					Console.WriteLine("  yep!");
+					camel_object_ref(raw);
+					return (Camel.Object)Activator.CreateInstance((Type)types[klass.name], new object [] { raw });
+				}
+
+				klass = (CamelObjectClass)Marshal.PtrToStructure(klass.parent, typeof(CamelObjectClass));
+			}
+
+			Console.WriteLine("  unknown type?");
+			camel_object_unref(raw);
+			return null;
+		}
+
+		/* this just registers an object created on the cil side */
+		public static void toCamel(Object res) {
+			System.Console.WriteLine("object to camel " + res.cobject);
+
+			objects.Add(res.cobject, new WeakReference(res));
+			res.finaliseID = camel_object_hook_event(res.cobject, "finalize", (CamelEventFunc)objectFinalised, (IntPtr)0);
+		}
+
+		// Camel event Wrapper and helpers
+		public delegate void CamelEventFunc(IntPtr o, IntPtr info, IntPtr data);
+
+		[DllImport("camel-1.2")] public static extern int camel_object_hook_event(IntPtr raw, string name, CamelEventFunc func, IntPtr data);
+		[DllImport("camel-1.2")] public static extern void camel_object_remove_event(IntPtr raw, int id);
+
+		protected void addEvent(String name, ref int hookid, CamelEventFunc hook, Delegate value) {
+			if (hookid == -1)
+				hookid = camel_object_hook_event(cobject, name, hook, (IntPtr)0);
+			events.AddHandler(name, value);
+		}
+
+		protected void removeEvent(String name, ref int hookid, Delegate value) {
+			events.RemoveHandler(name, value);
+			if (events[name] == null) {
+				camel_object_remove_event(cobject, hookid);
+				hookid = -1;
+			}
+		}	
+
+		// object events
+		public delegate void FinaliseEvent(Camel.Object o);
+		public delegate void MetaChangedEvent(Camel.Object o, String name);
+
+		// how to remove these, at dispose time?
+		private int finalise_id = -1;
+		private int meta_changed_id = -1;
+
+		private static void finaliseHook(IntPtr co, IntPtr info, IntPtr data) {
+			Object o = fromCamel(co);
+			FinaliseEvent f;
+
+			if (o != null
+			    && (f = (FinaliseEvent)o.events["finalize"]) != null)
+				f(o);
+		}
+
+		private static void metaChangedHook(IntPtr co, IntPtr info, IntPtr data) {
+			Object o = fromCamel(co);
+			MetaChangedEvent f;
+
+			if (o != null
+			    && (f = (MetaChangedEvent)o.events["finalize"]) != null)
+				f(o, Marshal.PtrToStringAnsi(info));
+		}
+
+		public event FinaliseEvent Finalise {
+			add { addEvent("finalize", ref finalise_id, (CamelEventFunc)finaliseHook, value); }
+			remove { removeEvent("finalize", ref finalise_id, value); }
+		}
+
+		public event MetaChangedEvent MetaChanged {
+			add { addEvent("meta_changed", ref meta_changed_id, (CamelEventFunc)metaChangedHook, value); }
+			remove { removeEvent("meta_changed", ref meta_changed_id, value); }
+		}
+
+		[DllImport("camel-1.2")] static extern IntPtr camel_object_get_ptr(IntPtr raw, ref CamelException ex, int tag);
+		[DllImport("camel-1.2")] static extern void camel_object_free(IntPtr raw, int tag, IntPtr val);
+		[DllImport("camel-1.2")] static extern int camel_object_get_int(IntPtr raw, ref CamelException ex, int tag);
+
+		// maybe we want an indexer class to get properties?
+		// e.g. name = folder.properties[Folder.Tag.NAME]
+		public String getString(int type) {
+			String s;
+			IntPtr o;
+			CamelException ex = new CamelException();
+
+			o = camel_object_get_ptr(cobject, ref ex, type);
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			s = Marshal.PtrToStringAuto(o);
+			camel_object_free(cobject, type, o);
+
+			return s;
+		}
+
+		public Camel.Object getObject(int type) {
+			IntPtr o;
+			Camel.Object co;
+			CamelException ex = new CamelException();
+
+			o = camel_object_get_ptr(cobject, ref ex, type);
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			co = fromCamel(o);
+			camel_object_free(cobject, type, o);
+
+			return co;
+		}
+
+		public int getInt(int type) {
+			int r;
+			CamelException ex = new CamelException();
+
+			r = camel_object_get_int(cobject, ref ex, type);
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			return r;
+		}
+
+		// meta-data
+		[DllImport("camel-1.2")] static extern String camel_object_meta_get(IntPtr raw, string name);
+		[DllImport("camel-1.2")] static extern bool camel_object_meta_set(IntPtr raw, string name, string value);
+
+		public String metaGet(String name) {
+			return camel_object_meta_get(cobject, name);
+		}
+
+		public bool metaSet(String name, String value) {
+			return camel_object_meta_set(cobject, name, value);
+		}
+	}
+
+	public class Provider {
+		public enum Type {
+			STORE = 0,
+			TRANSPORT = 1
+		}
+	}
+
+	public class Session : Object {
+		public Session(IntPtr raw) : base(raw) { }
+
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_session_get_service(IntPtr o, string uri, int type, ref CamelException ex);
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_session_get_service_connected(IntPtr o, string uri, int type, ref CamelException ex);
+
+		public Service getService(string uri, Provider.Type type) {
+			IntPtr s;
+			CamelException ex = new CamelException();
+
+			s = camel_session_get_service(cobject, uri, (int)type, ref ex);
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			return (Service)fromCamel(s);
+		}
+	}
+
+	public class Service : Object {
+		public Service(IntPtr raw) : base(raw) { }
+		// wrap service shit
+	}
+
+	public class Store : Service {
+		public Store(IntPtr raw) : base(raw) { }
+
+		[DllImport("camel-provider-1.2")]
+                static extern IntPtr camel_store_get_folder(IntPtr o, string name, int flags, ref CamelException ex);
+
+		Folder getFolder(string name, int flags) {
+			IntPtr s;
+			CamelException ex = new CamelException();
+
+			s = camel_store_get_folder(cobject, name, flags, ref ex);
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			return (Folder)fromCamel(s);
+		}
+
+		void createFolder(string name) {
+		}
+	}
+
+	public class Transport : Service {
+		public Transport(IntPtr raw) : base(raw) { }
+
+		// send to (message, from, reciepients);
+	}
+
+	public class Folder : Camel.Object {
+		public Folder(IntPtr raw) : base(raw) { }
+
+		~Folder() {
+			if (changed_id != -1)
+				camel_object_remove_event(cobject, changed_id);
+		}
+
+		public enum Tag {
+			NAME = 0x1400 + Arg.Tag.STR,
+			FULL_NAME = 0x1401 + Arg.Tag.STR,
+			STORE = 0x1402 + Arg.Tag.OBJ,
+			PERMANENTFLAGS = 0x1403 + Arg.Tag.INT,
+			TOTAL = 0x1404 + Arg.Tag.INT,
+			UNREAD = 0x1405 + Arg.Tag.INT,
+			DELETED = 0x1406 + Arg.Tag.INT,
+			JUNKED = 0x1407 + Arg.Tag.INT,
+			VISIBLE = 0x1408 + Arg.Tag.INT,
+			UID_ARRAY = 0x1409 + Arg.Tag.PTR,
+			INFO_ARRAY = 0x140a + Arg.Tag.PTR, // GPtrArray
+			PROPERTIES = 0x140b + Arg.Tag.PTR, // GSList of properties
+		}
+
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_folder_get_message(IntPtr o, string uid, ref CamelException ex);
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_folder_get_uids(IntPtr o);
+		[DllImport("camel-provider-1.2")] static extern void camel_folder_free_uids(IntPtr o, IntPtr uids);
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_folder_search_by_expression(IntPtr o, string expr, ref CamelException ex);
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_folder_search_by_uids(IntPtr o, string expr, ref Util.UIDArray uids, ref CamelException ex);
+		[DllImport("camel-provider-1.2")] static extern void camel_folder_search_free(IntPtr o, IntPtr uids);
+
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_folder_get_message_info(IntPtr raw, String uid);
+
+		public MimeMessage getMessage(string uid) {
+			CamelException ex = new CamelException();
+			IntPtr o = camel_folder_get_message(cobject, uid, ref ex);
+
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			return (MimeMessage)fromCamel(o);
+		}
+
+		public MessageInfo getMessageInfo(string uid) {
+			IntPtr o = camel_folder_get_message_info(cobject, uid);
+
+			if (o == (IntPtr)0)
+				return null;
+			else
+				return new MessageInfo(o);
+		}
+
+		public string [] getUIDs() {
+			IntPtr o = camel_folder_get_uids(cobject);
+			Util.UIDArray uids = new Util.UIDArray(o);
+
+			camel_folder_free_uids(cobject, o);
+
+			return uids.uids;
+		}
+
+		public string [] search(string expr) {
+			CamelException ex = new CamelException();
+			IntPtr o = camel_folder_search_by_expression(cobject, expr, ref ex);
+			Util.UIDArray uids;
+
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			uids = new Util.UIDArray(o);
+			camel_folder_search_free(cobject, o);
+
+			return uids.uids;
+		}
+
+		public string [] searchUIDs(string expr, string [] sub) {
+			CamelException ex = new CamelException();
+			Util.UIDArray uids = new Util.UIDArray(sub);
+			IntPtr o = camel_folder_search_by_uids(cobject, expr, ref uids, ref ex);
+
+			if (ex.id != 0)
+				throw new Camel.Exception(ex);
+
+			uids = new Util.UIDArray(o);
+			camel_folder_search_free(cobject, o);
+
+			return uids.uids;
+		}
+
+		public String name {
+			get { return getString((int)Folder.Tag.NAME); }
+		}
+
+		public String fullName {
+			get { return getString((int)Folder.Tag.FULL_NAME); }
+		}
+
+		public Camel.Store store {
+			get { return (Camel.Store)getObject((int)Folder.Tag.STORE); }
+		}
+
+		// Folder events
+		public delegate void ChangedEvent(Camel.Folder f);
+
+		private int changed_id = -1;
+
+		private static void changedHook(IntPtr co, IntPtr info, IntPtr data) {
+			Camel.Folder o = (Camel.Folder)fromCamel(co);
+			ChangedEvent f;
+			
+			Console.WriteLine("changed hook called for: " + o.cobject);
+
+			if (o != null
+			    && (f = (ChangedEvent)o.events["folder_changed"]) != null)
+				f(o);
+		}
+
+		public event ChangedEvent Changed {
+			add { addEvent("folder_changed", ref changed_id, (CamelEventFunc)changedHook, value); }
+			remove { removeEvent("folder_changed", ref changed_id, value); }
+		}
+	}
+
+	public class DataWrapper : Camel.Object {
+		public DataWrapper(IntPtr raw) : base(raw) { }
+
+		[DllImport("camel-1.2")] static extern int camel_data_wrapper_write_to_stream(IntPtr o, IntPtr s);
+		[DllImport("camel-1.2")] static extern int camel_data_wrapper_decode_to_stream(IntPtr o, IntPtr s);
+		[DllImport("camel-1.2")] static extern int camel_data_wrapper_construct_from_stream(IntPtr o, IntPtr s);
+
+		public void writeToStream(Camel.Stream stream) {
+			int res;
+
+			res = camel_data_wrapper_write_to_stream(cobject, stream.cobject);
+			if (res == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO Error");
+		}
+
+		public void decodeToStream(Camel.Stream stream) {
+			int res;
+
+			res = camel_data_wrapper_decode_to_stream(cobject, stream.cobject);
+			if (res == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO Error");
+		}
+
+		public void constructFromStream(Camel.Stream stream) {
+			int res;
+
+			res = camel_data_wrapper_construct_from_stream(cobject, stream.cobject);
+			if (res == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO Error");
+		}
+	}
+
+	public class Medium : Camel.DataWrapper {
+		public Medium(IntPtr raw) : base(raw) { }
+
+		[DllImport("camel-1.2")] static extern IntPtr camel_medium_get_content_object(IntPtr o);
+		[DllImport("camel-1.2")] static extern void camel_medium_set_content_object(IntPtr o, IntPtr s);
+
+		public DataWrapper content {
+			get {
+				IntPtr o = camel_medium_get_content_object(cobject);
+
+				if (o != (IntPtr)0)
+					return (DataWrapper)Object.fromCamel(o);
+				else
+					return null;
+			}
+			set {
+				camel_medium_set_content_object(cobject, value.cobject);
+			}
+		}
+	}
+
+	public class MimePart : Camel.Medium {
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_part_new();
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_part_get_description(IntPtr o);
+		[DllImport("camel-1.2")] static extern void camel_mime_part_set_description(IntPtr o, string s);
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_part_get_disposition(IntPtr o);
+		[DllImport("camel-1.2")] static extern void camel_mime_part_set_disposition(IntPtr o, string s);
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_part_get_filename(IntPtr o);
+		[DllImport("camel-1.2")] static extern void camel_mime_part_set_filename(IntPtr o, string s);
+
+		public MimePart(IntPtr raw) : base(raw) { }
+
+		public string description {
+			get { return Marshal.PtrToStringAuto(camel_mime_part_get_description(cobject)); }
+			set { camel_mime_part_set_description(cobject, value); }
+		}
+
+		public string disposition {
+			get { return Marshal.PtrToStringAuto(camel_mime_part_get_disposition(cobject)); }
+			set { camel_mime_part_set_disposition(cobject, value); }
+		}
+
+		public string filename {
+			get { return Marshal.PtrToStringAuto(camel_mime_part_get_filename(cobject)); }
+			set { camel_mime_part_set_filename(cobject, value); }
+		}
+
+		// FIXME: finish
+	}
+
+	public class MimeMessage : Camel.MimePart {
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_message_new();
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_message_get_subject(IntPtr o);
+		[DllImport("camel-1.2")] static extern void camel_mime_message_set_subject(IntPtr o, string s);
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_message_get_from(IntPtr o);
+		[DllImport("camel-1.2")] static extern void camel_mime_message_set_from(IntPtr o, IntPtr s);
+		[DllImport("camel-1.2")] static extern IntPtr camel_mime_message_get_recipients(IntPtr o, string type);
+		[DllImport("camel-1.2")] static extern void camel_mime_message_set_recipients(IntPtr o, string type, IntPtr s);
+
+		public MimeMessage(IntPtr raw) : base(raw) { }
+
+		/* We need to use factories to create new objects otherwise the parent will instantiate an instance
+		   of itself instead during the constructor setup */
+		public MimeMessage() : base((IntPtr)0) {
+			cobject = camel_mime_message_new();
+			toCamel(this);
+		}
+
+		public string subject {
+			get { return Marshal.PtrToStringAuto(camel_mime_message_get_subject(cobject)); }
+			set { camel_mime_message_set_subject(cobject, value); }
+		}
+
+		public InternetAddress from {
+			get { return new InternetAddress(camel_mime_message_get_from(cobject)); }
+			set { camel_mime_message_set_from(cobject, value.cobject); }
+		}
+		
+		public InternetAddress to {
+			get { return new InternetAddress(camel_mime_message_get_recipients(cobject, "to")); }
+			set { camel_mime_message_set_recipients(cobject, "to", value.cobject); }
+		}
+
+		public InternetAddress cc {
+			get { return new InternetAddress(camel_mime_message_get_recipients(cobject, "cc")); }
+			set { camel_mime_message_set_recipients(cobject, "cc", value.cobject); }
+		}
+
+		public InternetAddress bcc {
+			get { return new InternetAddress(camel_mime_message_get_recipients(cobject, "bcc")); }
+			set { camel_mime_message_set_recipients(cobject, "bcc", value.cobject); }
+		}
+
+		public InternetAddress resentTO {
+			get { return new InternetAddress(camel_mime_message_get_recipients(cobject, "resent-to")); }
+			set { camel_mime_message_set_recipients(cobject, "resent-to", value.cobject); }
+		}
+
+		public InternetAddress resentCC {
+			get { return new InternetAddress(camel_mime_message_get_recipients(cobject, "resent-cc")); }
+			set { camel_mime_message_set_recipients(cobject, "resent-cc", value.cobject); }
+		}
+
+		public InternetAddress resentBCC {
+			get { return new InternetAddress(camel_mime_message_get_recipients(cobject, "resent-bcc")); }
+			set { camel_mime_message_set_recipients(cobject, "resent-bcc", value.cobject); }
+		}
+	}
+
+	// subclass real streams?  or real stream interfaces?
+	public class Stream : Camel.Object {
+		public Stream(IntPtr raw) : base(raw) { }
+
+		[DllImport("camel-1.2")] static extern int camel_stream_write(IntPtr o, byte [] data, int len);
+		[DllImport("camel-1.2")] static extern int camel_stream_read(IntPtr o, byte [] data, int len);
+		[DllImport("camel-1.2")] static extern int camel_stream_eos(IntPtr o);
+		[DllImport("camel-1.2")] static extern int camel_stream_close(IntPtr o);
+		[DllImport("camel-1.2")] static extern int camel_stream_flush(IntPtr o);
+		[DllImport("camel-1.2")] static extern int camel_stream_reset(IntPtr o);
+
+		public int write(byte [] data, int len) {
+			int ret;
+
+			ret = camel_stream_write(cobject, data, len);
+			if (ret == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO write Error");
+
+			return ret;
+		}
+
+		public int write(string value) {
+			int ret;
+			byte [] data;
+			System.Text.UTF8Encoding enc = new System.Text.UTF8Encoding();
+
+			data = enc.GetBytes(value);
+			ret = camel_stream_write(cobject, data, data.Length);
+			if (ret == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO write Error");
+
+			return ret;
+		}
+
+
+		public int read(byte [] data, int len) {
+			int ret;
+
+			ret = camel_stream_read(cobject, data, len);
+			if (ret == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO read Error");
+
+			return ret;
+		}
+
+		public void close() {
+			if (camel_stream_close(cobject) == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO close Error");
+		}
+
+		public void reset() {
+			if (camel_stream_reset(cobject) == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO reset Error");
+		}
+
+		public void flush() {
+			if (camel_stream_flush(cobject) == -1)
+				throw new Exception(Exception.Type.SYSTEM, "IO close Error");
+		}
+
+		public bool eos() {
+			return (camel_stream_eos(cobject) != 0);
+		}
+	}
+
+	public class SeekableStream : Camel.Stream {
+		public SeekableStream(IntPtr raw) : base(raw) { }
+	}
+
+	public class StreamFS : Camel.SeekableStream {
+		public enum Flags {
+			O_RDONLY = 00,
+			O_WRONLY = 01,
+			O_RDWR   = 02,
+			O_CREAT  = 0100,
+			O_EXCL   = 0200,
+			O_TRUNC  = 01000,
+			O_APPEND = 02000
+		}
+
+		public static int STDIN_FILENO = 0;
+		public static int STDOUT_FILENO = 1;
+		public static int STDERR_FILENO = 2;
+
+		public StreamFS(IntPtr raw) : base(raw) { }
+
+		[DllImport("camel-1.2")] static extern IntPtr camel_stream_fs_new_with_name(string name, int flags, int mode);
+		[DllImport("camel-1.2")] static extern IntPtr camel_stream_fs_new_with_fd(int fd);
+
+		public StreamFS(string name, Flags flags, int mode) : base((IntPtr)0) {
+			cobject = camel_stream_fs_new_with_name(name, (int)flags, mode);
+			toCamel(this);
+		}
+
+		public StreamFS(int fd) : base((IntPtr)0) {
+			cobject = camel_stream_fs_new_with_fd(fd);
+			toCamel(this);
+		}
+	}
+
+	// this should obviously be extracted at build time
+	[StructLayout (LayoutKind.Explicit)]
+	struct CamelStreamMem {
+		[FieldOffset(44)] public IntPtr buffer;
+	}
+
+	struct GByteArray {
+		public IntPtr data;
+		public int len;
+	}
+
+	struct GPtrArray {
+		public IntPtr pdata;
+		public int len;
+	}
+
+	public class StreamMem : Camel.SeekableStream {
+		public StreamMem(IntPtr raw) : base(raw) { }
+
+		[DllImport("camel-1.2")]
+                static extern IntPtr camel_stream_mem_new();
+
+		/* stupid c# */
+		public StreamMem() : base((IntPtr)0) {
+			cobject = camel_stream_mem_new();
+			toCamel(this);
+		}
+
+		// should probably have some sort of interface for incremental/range gets too
+		public Byte[] getBuffer() {
+			CamelStreamMem mem = (CamelStreamMem)Marshal.PtrToStructure(cobject, typeof(CamelStreamMem));
+			GByteArray ba = (GByteArray)Marshal.PtrToStructure(mem.buffer, typeof(GByteArray));
+			Byte[] res = new Byte[ba.len];
+
+			Marshal.Copy(ba.data, res, 0, ba.len);
+
+			return res;
+		}
+	}
+
+	// should do iterators etc?
+	public class Address : Camel.Object {
+		public Address(IntPtr raw) : base (raw) { }
+
+		[DllImport("camel-1.2")] static extern IntPtr camel_address_new();
+		[DllImport("camel-1.2")] static extern int camel_address_length(IntPtr raw);
+		[DllImport("camel-1.2")] static extern int camel_address_decode(IntPtr raw, string addr);
+		[DllImport("camel-1.2")] static extern string camel_address_encode(IntPtr raw);
+		[DllImport("camel-1.2")] static extern int camel_address_unformat(IntPtr raw, string addr);
+		[DllImport("camel-1.2")] static extern string camel_address_format(IntPtr raw);
+		[DllImport("camel-1.2")] static extern int camel_address_cat(IntPtr raw, IntPtr src);
+		[DllImport("camel-1.2")] static extern int camel_address_copy(IntPtr raw, IntPtr src);
+		[DllImport("camel-1.2")] static extern void camel_address_remove(IntPtr raw, int index);
+
+		public Address() : base((IntPtr)0) {
+			cobject = camel_address_new();
+			toCamel(this);
+		}
+
+		public int length() {
+			return camel_address_length(cobject);
+		}
+
+		public void decode(string addr) {
+			if (camel_address_decode(cobject, addr) == -1)
+				throw new Exception(Exception.Type.SYSTEM, "Invalid address: " + addr);
+		}
+
+		public string encode() {
+			return camel_address_encode(cobject);
+		}
+
+		public void unformat(string addr) {
+			if (camel_address_unformat(cobject, addr) == -1)
+				throw new Exception(Exception.Type.SYSTEM, "Invalid address: " + addr);
+		}
+
+		public string format() {
+			return camel_address_format(cobject);
+		}
+
+		public void cat(Address from) {
+			camel_address_cat(cobject, from.cobject);
+		}
+
+		public void copy(Address from) {
+			camel_address_copy(cobject, from.cobject);
+		}
+	}
+
+	public class InternetAddress : Camel.Address {
+		public InternetAddress(IntPtr raw) : base (raw) { }
+		
+		[DllImport("camel-1.2")] static extern IntPtr camel_internet_address_new();
+		[DllImport("camel-1.2")] static extern int camel_internet_address_add(IntPtr raw, string name, string addr);
+		[DllImport("camel-1.2")] static extern bool camel_internet_address_get(IntPtr raw, out string name, out string addr);
+		[DllImport("camel-1.2")] static extern int camel_internet_address_find_name(IntPtr raw, string name, out string addr);
+		[DllImport("camel-1.2")] static extern int camel_internet_address_find_address(IntPtr raw, string addr, out string name);
+		[DllImport("camel-1.2")] static extern string camel_internet_address_encode_address(out int len, string name, string addr);
+		[DllImport("camel-1.2")] static extern string camel_internet_address_format_address(string name, string addr);
+		
+		public InternetAddress() : base((IntPtr)0) {
+			cobject = camel_internet_address_new();
+			toCamel(this);
+		}
+
+		public void add(string name, string addr) {
+			camel_internet_address_add(cobject, name, addr);
+		}
+
+		public bool get(out string name, out string addr) {
+			name = null;
+			addr = null;
+			return camel_internet_address_get(cobject, out name, out addr);
+		}
+
+		// this is a weird arsed interface ...
+		public int findName(string name, out string addr) {
+			addr = null;
+			// FIXME: addr is const, need to marshal to local
+			return camel_internet_address_find_name(cobject, name, out addr);
+		}
+
+		public int findAddress(string addr, out string name) {
+			name = null;
+			return camel_internet_address_find_name(cobject, addr, out name);
+		}
+
+		public static string encode(string name, string addr) {
+			int len = 0;
+			// another weird-arsed interface
+			return camel_internet_address_encode_address(out len, name, addr);
+		}
+
+		public static string format(string name, string addr) {
+			return camel_internet_address_format_address(name, addr);
+		}
+	}
+
+	public class MessageInfo {
+		public IntPtr cobject;
+		private Tags user_tags;
+		private Flags user_flags;
+
+		private enum Type {
+			SUBJECT,
+			FROM,
+			TO,
+			CC,
+			MLIST,
+
+			FLAGS,
+			SIZE,
+
+			DATE_SENT,
+			DATE_RECEIVED,
+
+			MESSAGE_ID,
+			REFERENCES,
+
+			USER_FLAGS,
+			USER_TAGS,
+
+			LAST,
+		}
+
+		public class Tags {
+			private MessageInfo mi;
+
+			[DllImport("camel-provider-1.2")] static extern IntPtr camel_message_info_user_tag(IntPtr mi, String name);
+			[DllImport("camel-provider-1.2")] static extern bool camel_message_info_set_user_tag(IntPtr mi, String name, String value);
+
+			public Tags(MessageInfo raw) {
+				mi = raw;
+			}
+
+			public String this [String tag] {
+				get {
+					return Marshal.PtrToStringAnsi(camel_message_info_user_tag(mi.cobject, tag));
+				}
+				set {
+					camel_message_info_set_user_tag(mi.cobject, tag, value);
+				}
+			}
+		}
+
+		public class Flags {
+			private MessageInfo mi;
+
+			[DllImport("camel-provider-1.2")] static extern bool camel_message_info_user_flag(IntPtr miptr, String name);
+			[DllImport("camel-provider-1.2")] static extern bool camel_message_info_set_user_flag(IntPtr miptr, String name, bool value);
+
+			// note raw is a pointer to a pointer of tags
+			public Flags(MessageInfo raw) {
+				mi = raw;
+			}
+
+			public bool this [String tag] {
+				get {
+					return camel_message_info_user_flag(mi.cobject, tag);
+				}
+				set {
+					camel_message_info_set_user_flag(mi.cobject, tag, value);
+				}
+			}
+		}
+
+		// only used to calculate offsets
+		private struct CamelMessageInfo {
+			IntPtr summary;
+			uint refcount;
+			string uid;
+		};
+
+		public MessageInfo(IntPtr raw) {
+			cobject = raw;
+		}
+
+		[DllImport("camel-provider-1.2")] static extern void camel_folder_free_message_info(IntPtr raw, IntPtr info);
+		[DllImport("camel-provider-1.2")] static extern void camel_message_info_free(IntPtr info);
+
+		~MessageInfo() {
+			camel_message_info_free(cobject);
+		}
+
+		[DllImport("camel-provider-1.2")] static extern IntPtr camel_message_info_ptr(IntPtr raw, int type);
+		[DllImport("camel-provider-1.2")] static extern uint camel_message_info_uint32(IntPtr raw, int type);
+		[DllImport("camel-provider-1.2")] static extern uint camel_message_info_time(IntPtr raw, int type);
+
+		public String uid { get { return Marshal.PtrToStringAuto(Marshal.ReadIntPtr(cobject, (int)Marshal.OffsetOf(typeof(CamelMessageInfo), "uid"))); } }
+
+		public String subject { get { return Marshal.PtrToStringAnsi(camel_message_info_ptr(cobject, (int)Type.SUBJECT)); } }
+		public String from { get { return Marshal.PtrToStringAnsi(camel_message_info_ptr(cobject, (int)Type.FROM)); } }
+		public String to { get { return Marshal.PtrToStringAnsi(camel_message_info_ptr(cobject, (int)Type.TO)); } }
+		public String cc { get { return Marshal.PtrToStringAnsi(camel_message_info_ptr(cobject, (int)Type.CC)); } }
+		public String mlist { get { return Marshal.PtrToStringAnsi(camel_message_info_ptr(cobject, (int)Type.MLIST)); } }
+
+		public uint flags { get { return camel_message_info_uint32(cobject, (int)Type.FLAGS); } }
+		public uint size { get { return camel_message_info_uint32(cobject, (int)Type.SIZE); } }
+
+		public Tags userTags {
+			get {
+				if (user_tags == null)
+					user_tags = new Tags(this);
+				return user_tags;
+			}
+		}
+
+		public Flags userFlags {
+			get {
+				if (user_flags == null)
+					user_flags = new Flags(this);
+				return user_flags;
+			}
+		}
+	}
+
+	public class URL {
+		public IntPtr cobject;
+		internal Params param_list;
+
+		// we never instantiate this, we just use it to describe the layout
+		internal struct CamelURL {
+			internal IntPtr protocol;
+			internal IntPtr user;
+			internal IntPtr authmech;
+			internal IntPtr passwd;
+			internal IntPtr host;
+			internal int    port;
+			internal IntPtr path;
+			internal IntPtr pparams;
+			internal IntPtr query;
+			internal IntPtr fragment;
+		};
+
+		public class Params {
+			private URL parent;
+
+			internal Params(URL _parent) {
+				parent = _parent;
+			}
+
+			public string this[string name] {
+				set { camel_url_set_param(parent.cobject, name, value); }
+				get { return Marshal.PtrToStringAnsi(camel_url_get_param(parent.cobject, name)); }
+			}
+		}
+
+		[DllImport("camel-1.2")] static extern IntPtr camel_url_new_with_base(IntPtr bbase, string url);
+		[DllImport("camel-1.2")] static extern IntPtr camel_url_new(string url, ref CamelException ex);
+		[DllImport("camel-1.2")] static extern string camel_url_to_string(IntPtr url, int flags);
+		[DllImport("camel-1.2")] static extern void camel_url_free(IntPtr url);
+
+		// this is a shit to wrap, needs accessors or other pain
+		[DllImport("camel-1.2")] static extern void camel_url_set_protocol(IntPtr url, string s);
+		[DllImport("camel-1.2")] static extern void camel_url_set_user(IntPtr url, string s);
+		[DllImport("camel-1.2")] static extern void camel_url_set_authmech(IntPtr url, string s);
+		[DllImport("camel-1.2")] static extern void camel_url_set_passwd(IntPtr url, string s);
+		[DllImport("camel-1.2")] static extern void camel_url_set_host(IntPtr url, string s);
+		[DllImport("camel-1.2")] static extern void camel_url_set_port(IntPtr url, int p);
+		[DllImport("camel-1.2")] static extern void camel_url_set_path(IntPtr url, string s);
+		[DllImport("camel-1.2")] static extern void camel_url_set_param(IntPtr url, string s, string v);
+		[DllImport("camel-1.2")] static extern void camel_url_set_query(IntPtr url, string s);
+		[DllImport("camel-1.2")] static extern void camel_url_set_fragment(IntPtr url, string s);
+
+		[DllImport("camel-1.2")] static extern IntPtr camel_url_get_param(IntPtr url, string s);
+
+		[DllImport("camel-1.2")] static extern string camel_url_encode(string url, string escape);
+		// ugh we can't do this, it writes to its result??
+		// -> use StringBuilder
+		[DllImport("camel-1.2")] static extern IntPtr camel_url_decode(ref string url);
+
+		public URL(string uri) {
+			CamelException ex = new CamelException();
+
+			cobject = camel_url_new(uri, ref ex);
+			if (ex.id != 0)
+				throw new Exception(ex);
+		}
+
+		public URL(URL bbase, string uri) {
+			cobject = camel_url_new_with_base(bbase.cobject, uri);
+		}
+
+		~URL() {
+			camel_url_free(cobject);
+		}
+
+		/* its ugly but it works */
+		private string field(string name) {
+			return Marshal.PtrToStringAuto(Marshal.ReadIntPtr(cobject, (int)Marshal.OffsetOf(typeof(CamelURL), name)));
+		}
+
+		public string protocol {
+			set { camel_url_set_protocol(cobject, value); }
+			get { return field("protocol"); }
+		}
+
+		public string user {
+			set { camel_url_set_user(cobject, value); }
+			get { return field("user"); }
+		}
+
+		public string authmech {
+			set { camel_url_set_authmech(cobject, value); }
+			get { return field("authmech"); }
+		}
+
+		public string passwd {
+			set { camel_url_set_passwd(cobject, value); }
+			get { return field("passwd"); }
+		}
+
+		public string host {
+			set { camel_url_set_host(cobject, value); }
+			get { return field("host"); }
+		}
+
+		public int port {
+			set { camel_url_set_port(cobject, value); }
+			get { return (int)Marshal.ReadIntPtr(cobject, (int)Marshal.OffsetOf(typeof(CamelURL), "port")); }
+		}
+
+		public string path {
+			set { camel_url_set_path(cobject, value); }
+			get { return field("path"); }
+		}
+
+		public string query {
+			set { camel_url_set_query(cobject, value); }
+			get { return field("query"); }
+		}
+
+		public string fragment {
+			set { camel_url_set_fragment(cobject, value); }
+			get { return field("fragment"); }
+		}
+
+		public Params paramlist {
+			get {
+				if (param_list == null)
+					param_list = new Params(this);
+				return param_list;
+			}
+		}
+
+		public override string ToString() {
+			return camel_url_to_string(cobject, 0);
+		}
+
+		public static string encode(string val) {
+			return camel_url_encode(val, null);
+		}
+
+		public static string encode(string val, string escape) {
+			return camel_url_encode(val, escape);
+		}
+	}
+}
+
+namespace Camel.Hash {
+	public class Stream : System.IO.Stream {
+		protected Camel.Stream substream;
+
+		public Stream(Camel.Stream sub) {
+			substream = sub;
+		}
+
+		public override bool CanSeek { get { return false; } }
+		public override bool CanRead { get { return true; } }
+		public override bool CanWrite { get { return true; } }
+		public override long Length {
+			get {
+				throw new System.IO.IOException("Cannot get stream length");
+			}
+		}
+		public override long Position {
+			get {
+				throw new System.IO.IOException("Cannot get stream position");
+			}
+			set {
+				if (value == 0) {
+					substream.reset();
+				} else {
+					throw new System.IO.IOException("Cannot set stream position");
+				}
+			}
+		}
+	
+		public override int Read(byte[] buffer, int offset, int count) {
+			// FIXME: how to add the offset to the buffer?
+			return substream.read(buffer, count);
+		}
+
+		public override void Write(byte[] buffer, int offset, int count) {
+			// FIXME: how to add the offset to the buffer?
+			substream.write(buffer, count);
+		}
+
+		public override void Flush() {
+			substream.flush();
+		}
+
+		public override long Seek(long offset, System.IO.SeekOrigin seek) {
+			throw new System.IO.IOException("Seeking not supported");
+		}
+
+		public override void SetLength(long len) {
+			throw new System.IO.IOException("Cannot set stream length");
+		}
+	}
+}
+
+/*
+namespace Evolution.Mail {
+	class Component : GLib.Object {
+		public Component(IntPtr raw) : base(raw) {}
+		public Component() : base() {}
+
+		~Component() {
+			Dispose();
+		}
+
+		[DllImport("libevolution-mail.so")] static extern IntPtr mail_component_peek();
+		[DllImport("libevolution-mail.so")] static extern IntPtr mail_component_peek_base_directory(IntPtr component);
+		[DllImport("libevolution-mail.so")] static extern IntPtr mail_component_peek();
+
+		public static Component peek() {
+			return new Component(mail_component_peek());
+		}
+
+		public String baseDirectory {
+			get {}
+		}
+}
+*/
-- 
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