adds /resolveHandle for resolving handles

kordophone/Bridge/Operations/MBIMResolveHandleOperation.h

@@ -0,0 +1,17 @@
+//
+//  MBIMResolveHandleOperation.h
+//  kordophoned
+//
+//  Created by James Magahern on 10/1/24.
+//  Copyright © 2024 James Magahern. All rights reserved.
+//
+
+#import "MBIMBridgeOperation.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MBIMResolveHandleOperation : MBIMBridgeOperation
+
+@end
+
+NS_ASSUME_NONNULL_END

kordophone/Bridge/Operations/MBIMResolveHandleOperation.m

@@ -0,0 +1,134 @@
+//
+//  MBIMResolveHandleOperation.m
+//  kordophoned
+//
+//  Created by James Magahern on 10/1/24.
+//  Copyright © 2024 James Magahern. All rights reserved.
+//
+
+#import "MBIMResolveHandleOperation.h"
+
+#import "IMCore_ClassDump.h"
+#import "IMMessageItem+Encoded.h"
+
+/*
+ # Response:
+ Dictionary {
+    "resolvedHandle": <Encoded IMHandle>
+    "status": valid | invalid | unknown,
+    "existingChat": chatGUID | null
+ }
+ 
+ # IMHandle:
+ Dictionary {
+    "id"   : resolvedID
+    "name" : fullName | null
+ }
+ */
+
+@interface NSNumber (IDSStatusUtility)
+- (NSString *)_idsStatusDescription;
+@end
+
+@implementation NSNumber (IDSStatusUtility)
+- (NSString *)_idsStatusDescription
+{
+    switch ([self unsignedIntegerValue]) {
+        case 1: return @"valid";
+        case 2: return @"invalid";
+        default:
+            return @"unknown";
+    }
+}
+@end
+
+@interface IMHandle (Encoded)
+- (NSDictionary *)mbim_dictionaryRepresentation;
+@end
+
+@implementation IMHandle (Encoded)
+- (NSDictionary *)mbim_dictionaryRepresentation
+{
+    return @{
+        @"id"   : [self ID],
+        @"name" : [self name] ?: [NSNull null],
+    };
+}
+@end
+
+@implementation MBIMResolveHandleOperation
+
++ (void)load { [super load]; }
+
++ (NSString *)endpointName
+{
+    return @"resolveHandle";
+}
+
+- (void)main
+{
+    NSString *specifiedIdentifier = [[self valueForQueryItemWithName:@"id"] _stripFZIDPrefix];
+    if (!specifiedIdentifier) {
+        MBIMLogError(@"No handle ID provided.");
+        HTTPErrorResponse *response = [[HTTPErrorResponse alloc] initWithErrorCode:500];
+        self.serverCompletionBlock(response);
+        
+        return;
+    }
+    
+    if (IMStringIsPhoneNumber(specifiedIdentifier)) {
+        // Phone numbers will require a country code guess here.
+        // Passing nil, I presume, will make some kind of guess for the country code (useNetworkCountryCode).
+        specifiedIdentifier = IMCopyIDForPhoneNumber(specifiedIdentifier, nil, YES);
+    }
+    
+    NSString *canonicalAddress = [specifiedIdentifier _bestGuessURI];
+ 
+    IMAccount *iMessageAccount = [[IMAccountController sharedInstance] bestAccountForService:[IMServiceImpl iMessageService]];
+    IMHandle *loginHandle = [iMessageAccount loginIMHandle];
+    
+    NSString *lastAddressedHandle = [[[loginHandle ID] _stripFZIDPrefix] _bestGuessURI];
+    IMChatCalculateServiceForSendingNewComposeMaybeForce(@[ canonicalAddress ], lastAddressedHandle, nil, NO, IMStringIsEmail(canonicalAddress), NO, NO, NO, [iMessageAccount service], ^(BOOL allAddressesiMessageCapable, NSDictionary * _Nullable perRecipientAvailability, BOOL checkedServer, IMChatServiceForSendingAvailabilityError error)
+    {
+        NSError *encodingError = nil;
+        NSObject<HTTPResponse> *response = nil;
+        
+        do {
+            // Assume we have returned just one key here.
+            NSString *resolvedHandleID = [[perRecipientAvailability allKeys] firstObject];
+            if (!resolvedHandleID) {
+                MBIMLogError(@"Unexpected missing handle id");
+                response = [[HTTPErrorResponse alloc] initWithErrorCode:500];
+                break;
+            }
+            
+            IMHandle *resolvedHandle = [iMessageAccount imHandleWithID:resolvedHandleID];
+            if (!resolvedHandle) {
+                MBIMLogError(@"Couldn't resolve handle");
+                response = [[HTTPErrorResponse alloc] initWithErrorCode:500];
+                break;
+            }
+            
+            NSString *handleStatus = [[perRecipientAvailability objectForKey:resolvedHandleID] _idsStatusDescription];
+            
+            IMChat *existingChat = [[IMChatRegistry sharedInstance] existingChatForIMHandle:resolvedHandle];
+            
+            NSDictionary *responseDict = @{
+                @"resolvedHandle" : [resolvedHandle mbim_dictionaryRepresentation],
+                @"status" : handleStatus,
+                @"existingChat" : [existingChat guid] ?: [NSNull null],
+            };
+            
+            NSData *data = [NSJSONSerialization dataWithJSONObject:responseDict options:0 error:&encodingError];
+            if (encodingError) {
+                response = [[HTTPErrorResponse alloc] initWithErrorCode:500];
+            } else {
+                response = [[MBIMDataResponse alloc] initWithData:data contentType:@"application/json"];
+            }
+        } while (0);
+        
+        self.serverCompletionBlock(response);
+    });
+}
+
+@end