Add support for sending messages

FossilOrigin-Name: cce4e8d73aefdb9a721a42b68b1c769c886d4fdb9a0a45d5bea30f41fe52d237

src/exceptions/MTXSendMessageFailedException.m

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2020, Jonathan Schleifer <js@nil.im>
+ *
+ * https://fossil.nil.im/objmatrix
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "MTXSendMessageFailedException.h"
+
+#import "MTXClient.h"
+
+@implementation MTXSendMessageFailedException
++ (instancetype)exceptionWithMessage: (OFString *)message
+			      roomID: (OFString *)roomID
+			  statusCode: (int)statusCode
+			    response: (mtx_response_t)response
+			      client: (MTXClient *)client
+{
+	return [[[self alloc] initWithMessage: message
+				       roomID: roomID
+				   statusCode: statusCode
+				     response: response
+				       client: client] autorelease];
+}
+
+- (instancetype)initWithMessage: (OFString *)message
+			 roomID: (OFString *)roomID
+		     statusCode: (int)statusCode
+		       response: (mtx_response_t)response
+			 client: (MTXClient *)client
+{
+	self = [super initWithStatusCode: statusCode
+				response: response
+				  client: client];
+
+	@try {
+		_message = [message copy];
+		_roomID = [roomID copy];
+	} @catch (id e) {
+		[self release];
+		@throw e;
+	}
+
+	return self;
+}
+
+- (void)dealloc
+{
+	[_message release];
+	[_roomID release];
+
+	[super dealloc];
+}
+
+- (OFString *)description
+{
+	return [OFString stringWithFormat:
+	    @"Failed to send message to room %@ for %@: %@",
+	    _roomID, self.client.userID, self.response];
+}
+@end