diff -r 000000000000 -r 84fdfb0344c9 lm_connection.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lm_connection.c	Sun Feb 01 21:28:57 2009 +0200
@@ -0,0 +1,542 @@
+
+#include <lua.h>
+#include <lauxlib.h>
+#include <glib.h>			// GDestroyNotify, GMainContext
+#include <loudmouth/loudmouth.h>
+
+#include "util.h"
+#include "lm_types.h"
+#include "lm_message.h"
+#include "lm_message_handler.h"
+
+/// lm.connection
+/// Central module, representing connection to the server.
+/// You should create a new connection object, then open it (establish
+/// connection), then authenticate to the server.
+
+/// connection state
+/// Stirng, representing current connection state.
+/// V: closed, opening, open, authenticating, authenticated
+const string2enum_t llm_connection_state[] = {
+	{ "closed",         LM_CONNECTION_STATE_CLOSED         },
+	{ "opening",        LM_CONNECTION_STATE_OPENING        },
+	{ "open",           LM_CONNECTION_STATE_OPEN           },
+	{ "authenticating", LM_CONNECTION_STATE_AUTHENTICATING },
+	{ "authenticated",  LM_CONNECTION_STATE_AUTHENTICATED  },
+	{ NULL,             0                                  }, // XXX
+};
+
+/// handler priority
+/// String, according to which handler will be placed into one
+/// of three handler groups.
+/// V: last, normal, first
+const string2enum_t llm_handler_priority[] = {
+	{ "last",   LM_HANDLER_PRIORITY_LAST   },
+	{ "normal", LM_HANDLER_PRIORITY_NORMAL },
+	{ "first",  LM_HANDLER_PRIORITY_FIRST  },
+	{ NULL,     0                          }, // XXX
+};
+
+/// disconnect reason
+/// String, indicating the reason of disconnection occured.
+/// V: ok, ping time out, hup, error, resource conflict, invalid xml, unknown, ping_time_out, resource_conflict, invalid_xml
+const string2enum_t llm_disconnect_reason[] = {
+	{ "ok",                LM_DISCONNECT_REASON_OK                },
+	{ "ping time out",     LM_DISCONNECT_REASON_PING_TIME_OUT     },
+	{ "hup",               LM_DISCONNECT_REASON_HUP               },
+	{ "error",             LM_DISCONNECT_REASON_ERROR             },
+	{ "resource conflict", LM_DISCONNECT_REASON_RESOURCE_CONFLICT },
+	{ "invalid xml",       LM_DISCONNECT_REASON_INVALID_XML       },
+	{ "unknown",           LM_DISCONNECT_REASON_UNKNOWN           },
+	{ "ping_time_out",     LM_DISCONNECT_REASON_PING_TIME_OUT     },
+	{ "resource_conflict", LM_DISCONNECT_REASON_RESOURCE_CONFLICT },
+	{ "invalid_xml",       LM_DISCONNECT_REASON_INVALID_XML       },
+	{ NULL,                0                                      }, // XXX
+};
+
+/// lm.connection.new
+/// Creates a new connection (closed).
+/// A: string (server name), lightuserdata (C glib main context object, optional)
+/// R: lm connection object
+static int llm_connection_new (lua_State *L)
+{
+	const char *server = luaL_checkstring (L, 1);
+	LmConnection *connection;
+	if (lua_gettop (L) < 2) {
+		connection = lm_connection_new (server);
+		lua_pop (L, 1);
+	} else {
+		luaL_argcheck (L, lua_islightuserdata (L, 2), 2, "glib main context lightuserdata expected");
+		connection = lm_connection_new_with_context (server, (GMainContext *) lua_touserdata (L, 2));
+		lua_pop (L, 2);
+	}
+	llm_connection_bless (L, connection);
+	lm_connection_unref (connection);
+	return 1;
+}
+
+/// lm.connection.bless
+/// Blesses given pointer to lm connection object.
+/// Note: it adds a reference to connection.
+/// A: lightuserdata (C lm connection object)
+/// R: lm connection object
+static int llm_connection_bless_lua (lua_State *L)
+{
+	luaL_argcheck (L, lua_islightuserdata (L, 1), 1, "loudmouth connection lightuserdata expected");
+	llm_connection_bless (L, (LmConnection *) lua_touserdata (L, 1));
+	lua_remove (L, -2);
+	return 1;
+}
+
+/// connection callback function
+/// User function, that will be called on connection establishment operation end,
+/// eg. successful/unsuccessful opening or authentication.
+/// A: lm connection object, boolean (success)
+static void llm_connection_callback (LmConnection *connection, int success, llm_callback_t *cb)
+{
+	lua_rawgeti (cb->L, LUA_REGISTRYINDEX, cb->reference);
+	llm_connection_bless (cb->L, connection);
+	// XXX lm_connection_unref (connection);
+	lua_pushboolean (cb->L, success);
+	if (lua_pcall (cb->L, 2, 0, 0)) {
+		// XXX lua_error (cb->L);
+		lua_pop (cb->L, 1);
+		return;
+	}
+}
+
+/// connection:open
+/// Opens connection to the server and then calls callback function.
+/// A: connection callback function
+/// R: boolean (success)
+static int llm_connection_open (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	llm_callback_t *cb;
+	luaL_argcheck (L, lua_isfunction (L, 2), 2, "function expected");
+	
+	cb = luaL_malloc (L, sizeof (llm_callback_t));
+	cb->reference = luaL_ref (L, LUA_REGISTRYINDEX);
+	cb->L         = L;
+
+	lua_pushboolean (L, lm_connection_open (object->connection,
+						(LmResultFunction)llm_connection_callback, cb,
+						(GDestroyNotify)llm_callback_destroy, NULL));
+	lua_remove (L, -2);
+	return 1;
+}
+
+/// connection:authenticate
+/// Tries to authenticate against opened connection, then calls callback function.
+/// A: string (username), string (password), string (resource), connection callback function
+/// R: boolean (success)
+static int llm_connection_authenticate (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	const char *username = luaL_checkstring (L, 2);
+	const char *password = luaL_checkstring (L, 3);
+	const char *resource = luaL_checkstring (L, 4);
+	llm_callback_t *cb;
+	int status;
+	luaL_argcheck (L, lua_isfunction (L, 5), 5, "function expected");
+
+	cb = luaL_malloc (L, sizeof (llm_callback_t));
+	cb->reference = luaL_ref (L, LUA_REGISTRYINDEX);
+	cb->L         = L;
+
+	status = lm_connection_authenticate (object->connection, username, password, resource,
+						(LmResultFunction)llm_connection_callback, cb,
+						(GDestroyNotify)llm_callback_destroy, NULL);
+	lua_pop (L, 4);
+	lua_pushboolean (L, status);
+	return 1;
+}
+
+/// connection:port
+/// Gets or sets server port to connect.
+/// A: integer (optional)
+/// R: integer (when called with no args)
+static int llm_connection_port (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	if (lua_gettop (L) > 1) { // Set
+		lm_connection_set_port (object->connection, luaL_checkint (L, 2));
+		lua_pop (L, 2);
+		return 0;
+	} else { // Get
+		lua_pushnumber (L, lm_connection_get_port (object->connection));
+		lua_remove (L, -2);
+		return 1;
+	}
+}
+
+/// connection:server
+/// Gets or sets server to connect to.
+/// A: string (optional, server name)
+/// R: string (when called with no args)
+static int llm_connection_server (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	if (lua_gettop (L) > 1) { // Set
+		lm_connection_set_server (object->connection, luaL_checkstring (L, 2));
+		lua_pop (L, 2);
+		return 0;
+	} else { // Get
+		lua_pushstring (L, lm_connection_get_server (object->connection));
+		lua_remove (L, -2);
+		return 1;
+	}
+}
+
+/// connection:jid
+/// Gets or sets jid for connection.
+/// A: string (optional)
+/// R: string (when called with no args)
+static int llm_connection_jid (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	if (lua_gettop (L) > 1) { // Set
+		lm_connection_set_jid (object->connection, luaL_checkstring (L, 2));
+		lua_pop (L, 2);
+		return 0;
+	} else { // Get
+		lua_pushstring (L, lm_connection_get_jid (object->connection));
+		lua_remove (L, -2);
+		return 1;
+	}
+}
+
+/// connection:keep_alive_rate
+/// Gets or sets keep alive packets rate for connection.
+/// Note, that on some platforms there is no get function even in
+/// loudmouth versions, that should have it according to documentation.
+/// integer (optional, seconds)
+/// integer (when called with no args)
+static int llm_connection_keep_alive_rate (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	if (lua_gettop (L) > 1) { // Set
+		lm_connection_set_keep_alive_rate (object->connection, luaL_checkint (L, 2));
+		lua_pop (L, 2);
+		return 0;
+	} else { // Get
+#ifdef HAVE_LM_CONNECTION_GET_KEEP_ALIVE_RATE
+		lua_pushnumber (L, lm_connection_get_keep_alive_rate (object->connection));
+		lua_remove (L, -2);
+#else
+		lua_pop (L, 1);
+		lua_pushstring (L, "Sorry, your loudmouth have no get_keep_alive_rate");
+		lua_error (L);
+#endif
+		return 1;
+	}
+}
+
+/// connection:proxy
+/// Gets or sets proxy server for connection.
+/// A: lm proxy object (optional)
+/// R: lm proxy object or nil (when called with no args)
+static int llm_connection_proxy (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	if (lua_gettop (L) > 1) { // Set
+		llm_proxy_t *proxy = luaL_checklm_proxy (L, 2);
+		lm_connection_set_proxy (object->connection, proxy->proxy);
+		lua_pop (L, 2);
+		return 0;
+	} else { // Get
+		LmProxy *proxy = lm_connection_get_proxy (object->connection);
+		lua_pop (L, 1);
+		if (proxy) {
+			llm_proxy_bless (L, proxy);
+			// XXX lm_proxy_unref (proxy);
+		} else
+			lua_pushnil (L);
+		return 1;
+	}
+}
+
+/// connection:ssl
+/// Gets or sets ssl object for connection.
+/// A: lm ssl object (optional)
+/// R: lm ssl object or nil (when called with no args)
+static int llm_connection_ssl (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	if (lua_gettop (L) > 1) { // Set
+		llm_ssl_t *ssl = luaL_checklm_ssl (L, 2);
+		lm_connection_set_ssl (object->connection, ssl->ssl);
+		lua_pop (L, 2);
+		return 0;
+	} else { // Get
+		LmSSL *ssl = lm_connection_get_ssl (object->connection);
+		lua_pop (L, 1);
+		if (ssl) {
+			llm_ssl_bless (L, ssl);
+			// XXX lm_ssl_unref (ssl);
+		} else
+			lua_pushnil (L);
+		return 1;
+	}
+}
+
+/// connection:close
+/// Close connection.
+/// R: boolean (success)
+static int llm_connection_close (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	lua_pushboolean (L, lm_connection_close (object->connection, NULL));
+	lua_remove (L, -2);
+	return 1;
+}
+
+/// connection:status
+/// Returns string, describing connection state.
+/// R: connection state
+static int llm_connection_status (lua_State *L)
+{
+	llm_connection_t *connection = luaL_checklm_connection (L, 1);
+	luaL_pushenum (L, lm_connection_get_state (connection->connection), llm_connection_state)
+	lua_remove (L, -2);
+	return 1;
+}
+
+/// connection:send
+/// Sends message (object). If specified, handler function will be called upon
+/// receiving of response to that message.
+/// Handler function can be either message handler object or just a function.
+/// A: lm message object, message handler callback function or lm message handler object (optional)
+/// R: boolean (success)
+static int llm_connection_send (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	llm_message_t *message = luaL_checklm_message (L, 2);
+	int status;
+	if (lua_gettop (L) < 3) // Send
+		status = lm_connection_send (object->connection, message->message, NULL);
+	else if (lua_isfunction (L, 3)) { // Send w/reply, func
+		llm_callback_t *cb = luaL_malloc (L, sizeof (llm_callback_t));
+		LmMessageHandler *handler;
+
+		cb->reference = luaL_ref (L, LUA_REGISTRYINDEX);
+		cb->L = L;
+		handler = lm_message_handler_new (
+					(LmHandleMessageFunction)llm_message_handler_callback,
+					cb, (GDestroyNotify)llm_callback_destroy);
+		status = lm_connection_send_with_reply (object->connection,
+							message->message, handler, NULL);
+		lm_message_handler_unref (handler);
+	} else { // Send w/reply, handler
+		llm_message_handler_t *handler = luaL_checklm_message_handler (L, 3);
+		status = lm_connection_send_with_reply (object->connection, message->message,
+							handler->message_handler, NULL);
+		lua_pop (L, 1);
+	};
+	lua_pop (L, 2);
+	lua_pushboolean (L, status);
+	return 1;
+}
+
+/// connection:send_raw
+/// Sends arbitrary string to opened connection.
+/// A: string
+/// R: boolean (status)
+static int llm_connection_send_raw (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	const char *string = luaL_checkstring (L, 2);
+	int status = lm_connection_send_raw (object->connection, string, NULL);
+	lua_pop (L, 2);
+	lua_pushboolean (L, status);
+	return 1;
+}
+
+/// connection:handler
+/// Registers or unregisters handler function for a given type of messages.
+/// To unregister handler, omit the priority argument.
+/// Handler function can be specified as plain function or message handler object.
+/// Though, you can unregister only a message handler object.
+/// A: message handler callback function or lm message handler object, message type, handler priority (optional)
+static int llm_connection_handler (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	int type = luaL_checkenum (L, 3, llm_message_type);
+
+	if (lua_gettop (L) > 3) { // Register
+		int priority = luaL_checkenum (L, 4, llm_handler_priority);
+
+		if (lua_isfunction (L, 2)) { // Function
+			LmMessageHandler *handler;
+			llm_callback_t *cb = luaL_malloc (L, sizeof (llm_callback_t));
+			lua_pushvalue (L, 2);
+			cb->reference = luaL_ref (L, LUA_REGISTRYINDEX);
+			cb->L         = L;
+
+			handler = lm_message_handler_new (
+					(LmHandleMessageFunction)llm_message_handler_callback,
+					cb, (GDestroyNotify)llm_callback_destroy);
+			lm_connection_register_message_handler (object->connection,
+								handler, type, priority);
+			lm_message_handler_unref (handler);
+		} else { // Object
+			llm_message_handler_t *handler = luaL_checklm_message_handler (L, 2);
+			lm_connection_register_message_handler (object->connection,
+								handler->message_handler,
+								type, priority);
+		}
+		lua_pop (L, 1);
+	} else { // Unregister
+		llm_message_handler_t *handler = luaL_checklm_message_handler (L, 2);
+		lm_connection_unregister_message_handler (object->connection,
+							  handler->message_handler,
+							  type);
+	}
+	lua_pop (L, 2);
+	return 0;
+}
+
+/// disconnect callback function
+/// Function, that will be called when disconnection occurs.
+/// A: lm connection object, disconnect reason
+void llm_disconnect_callback (LmConnection *connection, LmDisconnectReason reason, llm_callback_t *cb)
+{
+	lua_rawgeti (cb->L, LUA_REGISTRYINDEX, cb->reference);
+	llm_connection_bless (cb->L, connection);
+	// XXX lm_connection_unref (connection);
+	luaL_pushenum (cb->L, reason, llm_disconnect_reason);
+	if (lua_pcall (cb->L, 2, 0, 0)) {
+		// XXX lua_error (cb->L);
+		lua_pop (cb->L, 1);
+		return;
+	}
+}
+
+/// connection:ondisconnect
+/// Sets callback, that will be called on connection disconnect.
+/// A: disconnect callback function
+static int llm_connection_ondisconnect (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	llm_callback_t *cb;
+	luaL_argcheck (L, lua_isfunction (L, 2), 2, "function expected");
+
+	cb = luaL_malloc (L, sizeof (llm_callback_t));
+	cb->reference  = luaL_ref (L, LUA_REGISTRYINDEX);
+	cb->L          = L;
+
+	lm_connection_set_disconnect_function (object->connection,
+					       (LmDisconnectFunction)llm_disconnect_callback,
+					       cb, (GDestroyNotify)llm_callback_destroy);
+	lua_pop (L, 1);
+	return 0;
+}
+
+/// connection:open_wait
+/// Synchronous open call, that will block until connection will be opened.
+/// R: boolean (success)
+static int llm_connection_open_wait (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	lua_pushboolean (L, lm_connection_open_and_block (object->connection, NULL));
+	lua_remove (L, -2);
+	return 1;
+}
+
+/// connection:authenticate_wait
+/// Synchronous authentication call, that will wait until the end of authentication.
+/// A: string (username), string (password), string (resource)
+/// R: boolean (success)
+static int llm_connection_authenticate_wait (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	const char *username = luaL_checkstring (L, 2);
+	const char *password = luaL_checkstring (L, 3);
+	const char *resource = luaL_checkstring (L, 4);
+	int status = lm_connection_authenticate_and_block (object->connection, username,
+								password, resource, NULL);
+	lua_pop (L, 4);
+	lua_pushboolean (L, status);
+	return 1;
+}
+
+/// connection:send_wait
+/// Synchronous call, that will send message and wait for reply to it.
+/// A: lm message object
+/// R: lm message object or nil
+static int llm_connection_send_wait (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	llm_message_t *message = luaL_checklm_message (L, 2);
+	LmMessage *new = lm_connection_send_with_reply_and_block (object->connection,
+									message->message, NULL);
+	lua_pop (L, 2);
+	if (!new)
+		lua_pushnil (L);
+	else {
+		llm_message_bless (L, new);
+		lm_message_unref (new); // XXX
+	}
+	return 1;
+}
+
+/// connection:pointer
+/// Returns pointer to underlying C loudmouth structure.
+/// R: lightuserdata
+static int llm_connection_pointer (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	lua_pushlightuserdata (L, object->connection);
+	lua_remove (L, -2);
+	return 1;
+}
+
+static int llm_connection_gc (lua_State *L)
+{
+	llm_connection_t *object = luaL_checklm_connection (L, 1);
+	lm_connection_unref (object->connection);
+	lua_pop (L, 1);
+	return 0;
+}
+
+static const luaL_Reg llm_connection_reg_f[] = {
+	{ "new",   llm_connection_new       },
+	{ "bless", llm_connection_bless_lua },
+	{ NULL,    NULL                     },
+};
+
+static const luaL_Reg llm_connection_reg_m[] = {
+	{ "open",                llm_connection_open                },
+	{ "close",               llm_connection_close               },
+	{ "authenticate",        llm_connection_authenticate        },
+	{ "port",                llm_connection_port                },
+	{ "server",              llm_connection_server              },
+	{ "jid",                 llm_connection_jid                 },
+	{ "keep_alive_rate",     llm_connection_keep_alive_rate     },
+	{ "state",               llm_connection_status              },
+	{ "proxy",               llm_connection_proxy               },
+	{ "ssl",                 llm_connection_ssl                 },
+	{ "send",                llm_connection_send                },
+	{ "send_raw",            llm_connection_send_raw            },
+	{ "handler",             llm_connection_handler             },
+	{ "ondisconnect",        llm_connection_ondisconnect        },
+	{ "open_wait",           llm_connection_open_wait           },
+	{ "authenticate_wait",   llm_connection_authenticate_wait   },
+	{ "send_wait",           llm_connection_send_wait           },
+	{ "pointer",             llm_connection_pointer             },
+	{ "__gc",                llm_connection_gc                  },
+	{ NULL,                  NULL                               },
+};
+
+int luaopen_lm_connection (lua_State *L)
+{
+	luaL_newmetatable (L, "loudmouth.connection");
+	lua_pushstring (L, "__index");
+	lua_pushvalue (L, -2);
+	lua_settable (L, -3);
+	luaL_register (L, NULL, llm_connection_reg_m);
+	lua_pop (L, 1);
+	luaL_register (L, "lm.connection", llm_connection_reg_f);
+	return 1;
+}
+