Support for MSC 4289

MatrixSDK/Data/MXRoomState.h

@@ -283,6 +283,11 @@ Use MXRoomSummary.displayname to get a computed room display name.
  */
 - (float)memberNormalizedPowerLevel:(NSString*)userId;
 
+/**
+ Returns the power level for a given user identifier, this checks also for the creator and additional creators
+ */
+- (NSInteger)powerLevelOfUserWithUserID:(NSString *)userId;
+
 
 # pragma mark - Conference call
 /**

MatrixSDK/Data/MXRoomState.m

@@ -328,21 +328,53 @@ - (NSString *)avatar
     return avatar;
 }
 
+- (NSString *)roomVersion
+{
+    NSString *roomVersion;
+
+    // Check it from the state events
+    MXEvent *event = [stateEvents objectForKey:kMXEventTypeStringRoomCreate].lastObject;
+    NSDictionary<NSString *, id> *eventContent = [self contentOfEvent:event];
+
+    if (event && eventContent)
+    {
+        MXJSONModelSetString(roomVersion, eventContent[@"room_version"]);
+        roomVersion = [roomVersion copy];
+
+    }
+    return roomVersion;
+}
+
 - (NSString *)creatorUserId
 {
     NSString *creatorUserId;
 
     // Check it from the state events
     MXEvent *event = [stateEvents objectForKey:kMXEventTypeStringRoomCreate].lastObject;
+    NSString* sender = [event sender];
 
+    if (event && sender)
+    {
+        creatorUserId = [sender copy];
+    }
+    return creatorUserId;
+}
+
+- (NSArray<NSString*> *)additionalCreators
+{
+    NSArray<NSString*> *additionalCreators = @[];
+
+    // Check it from the state events
+    MXEvent *event = [stateEvents objectForKey:kMXEventTypeStringRoomCreate].lastObject;
     NSDictionary<NSString *, id> *eventContent = [self contentOfEvent:event];
 
     if (event && eventContent)
     {
-        MXJSONModelSetString(creatorUserId, eventContent[@"creator"]);
-        creatorUserId = [creatorUserId copy];
+        MXJSONModelSetArray(additionalCreators, eventContent[@"additional_creators"]);
+        additionalCreators = [additionalCreators copy];
+
     }
-    return creatorUserId;
+    return additionalCreators;
 }
 
 - (MXRoomHistoryVisibility)historyVisibility
@@ -601,13 +633,52 @@ - (float)memberNormalizedPowerLevel:(NSString*)userId
     // Ignore banned and left (kicked) members
     if (member.membership != MXMembershipLeave && member.membership != MXMembershipBan)
     {
-        float userPowerLevelFloat = [powerLevels powerLevelOfUserWithUserID:userId];
-        powerLevel = maxPowerLevel ? userPowerLevelFloat / maxPowerLevel : 1;
+        float userPowerLevelFloat = [self powerLevelOfUserWithUserID:userId];
+        if (maxPowerLevel && userPowerLevelFloat >= maxPowerLevel)
+        {
+            powerLevel = 1;
+        }
+        else
+        {
+            powerLevel = maxPowerLevel ? userPowerLevelFloat / maxPowerLevel : 1;
+        }
     }
 
     return powerLevel;
 }
 
+- (NSInteger)powerLevelOfUserWithUserID:(NSString *)userId
+{
+    if ([self isMSC4289Supported])
+    {
+        if ([userId isEqualToString: [self creatorUserId]] || [[self additionalCreators] containsObject: userId])
+        {
+            return maxPowerLevel ? maxPowerLevel + 1 : NSIntegerMax;
+        }
+    }
+
+    // By default, use usersDefault
+    NSInteger userPowerLevel = powerLevels.usersDefault;
+
+    NSNumber *powerLevel;
+    MXJSONModelSetNumber(powerLevel, powerLevels.users[userId]);
+    if (powerLevel)
+    {
+        userPowerLevel = [powerLevel integerValue];
+    }
+
+    return userPowerLevel;
+}
+
+- (BOOL)isMSC4289Supported {
+    NSArray<NSString*> *supportedRoomVersions = @[@"org.matrix.hydra.11",@"12"];
+    if ([self roomVersion])
+    {
+        return [supportedRoomVersions containsObject:[self roomVersion]];
+    }
+    return NO;
+}
+
 # pragma mark - Conference call
 - (BOOL)isOngoingConferenceCall
 {

MatrixSDK/JSONModels/MXRoomCreateContent.h

@@ -32,6 +32,11 @@ extern NSString* _Nonnull const MXRoomCreateContentRoomTypeJSONKey;
  */
 @property (nonatomic, copy, readonly, nullable) NSString *creatorUserId;
 
+/**
+ The array of `user_id` of the additional room creators.
+ */
+@property (nonatomic, copy, readonly, nullable) NSArray<NSString*> *additionalCreators;
+
 /**
  Room predecessor information if the current room is a new version of an old room (that has a state event `m.room.tombstone`).
  */

MatrixSDK/JSONModels/MXRoomCreateContent.m

@@ -25,6 +25,7 @@
 // Private
 
 static NSString* const kRoomCreateContentUserIdJSONKey = @"creator";
+static NSString* const kRoomCreateContentAdditionalCreatorsJSONKey = @"additional_creators";
 static NSString* const kRoomCreateContentPredecessorInfoJSONKey = @"predecessor";
 static NSString* const kRoomCreateContentRoomVersionJSONKey = @"room_version";
 static NSString* const kRoomCreateContentFederateJSONKey = @"m.federate";
@@ -34,6 +35,7 @@
 @interface MXRoomCreateContent()
 
 @property (nonatomic, copy, readwrite, nullable) NSString *creatorUserId;
+@property (nonatomic, copy, readwrite, nullable) NSArray<NSString*> *additionalCreators;
 @property (nonatomic, strong, readwrite, nullable) MXRoomPredecessorInfo *roomPredecessorInfo;
 @property (nonatomic, copy, readwrite, nullable) NSString *roomVersion;
 @property (nonatomic, readwrite) BOOL isFederated;
@@ -53,6 +55,7 @@ + (id)modelFromJSON:(NSDictionary *)jsonDictionary
         roomCreateContent.isFederated = YES;
 
         MXJSONModelSetString(roomCreateContent.creatorUserId, jsonDictionary[kRoomCreateContentUserIdJSONKey]);
+        MXJSONModelSetArray(roomCreateContent.additionalCreators, jsonDictionary[kRoomCreateContentAdditionalCreatorsJSONKey]);
         MXJSONModelSetMXJSONModel(roomCreateContent.roomPredecessorInfo, MXRoomPredecessorInfo, jsonDictionary[kRoomCreateContentPredecessorInfoJSONKey]);
         MXJSONModelSetString(roomCreateContent.roomVersion, jsonDictionary[kRoomCreateContentRoomVersionJSONKey]);
         MXJSONModelSetBoolean(roomCreateContent.isFederated, jsonDictionary[kRoomCreateContentFederateJSONKey]);
@@ -94,6 +97,11 @@ - (NSDictionary *)JSONDictionary
         jsonDictionary[MXRoomCreateContentRoomTypeJSONKey] = self.roomType;
     }
 
+    if (self.additionalCreators)
+    {
+        jsonDictionary[kRoomCreateContentAdditionalCreatorsJSONKey] = self.additionalCreators;
+    }
+
     return jsonDictionary;
 }
 

MatrixSDK/JSONModels/MXRoomPowerLevels.h

@@ -46,14 +46,6 @@ extern NSInteger const kMXRoomPowerLevelNotificationsRoomDefault;
  */
 @property (nonatomic) NSInteger usersDefault;
 
-/**
- Helper to get the power level of a member of the room.
-
- @param userId the id of the user.
- @return his power level.
- */
-- (NSInteger)powerLevelOfUserWithUserID:(NSString*)userId;
-
 #pragma mark - Setup
 
 /**

MatrixSDK/JSONModels/MXRoomPowerLevels.m

@@ -117,21 +117,6 @@ - (instancetype)initWithDefaultSpecValues
     return self;
 }
 
-- (NSInteger)powerLevelOfUserWithUserID:(NSString *)userId
-{
-    // By default, use usersDefault
-    NSInteger userPowerLevel = _usersDefault;
-
-    NSNumber *powerLevel;
-    MXJSONModelSetNumber(powerLevel, _users[userId]);
-    if (powerLevel)
-    {
-        userPowerLevel = [powerLevel integerValue];
-    }
-
-    return userPowerLevel;
-}
-
 - (NSInteger)minimumPowerLevelForSendingEventAsMessage:(MXEventTypeString)eventTypeString
 {
     NSInteger minimumPowerLevel;

MatrixSDK/NotificationCenter/Checker/MXPushRuleSenderNotificationPermissionConditionChecker.m

@@ -53,7 +53,7 @@ - (BOOL)isCondition:(MXPushRuleCondition*)condition satisfiedBy:(MXEvent*)event
     {
         MXRoomPowerLevels *roomPowerLevels = roomState.powerLevels;
         NSInteger notifLevel = [roomPowerLevels minimumPowerLevelForNotifications:notifLevelKey defaultPower:50];
-        NSInteger senderPowerLevel = [roomPowerLevels powerLevelOfUserWithUserID:event.sender];
+        NSInteger senderPowerLevel = [roomState powerLevelOfUserWithUserID:event.sender];
 
         isSatisfied = (senderPowerLevel >= notifLevel);
     }

MatrixSDK/Space/MXSpace.swift

@@ -327,12 +327,13 @@ public class MXSpace: NSObject {
         }
 
         room.state { roomState in
-            guard let powerLevels = roomState?.powerLevels else {
+            guard let roomState,
+                let powerLevels = roomState.powerLevels else {
                 MXLog.warning("[MXSpace] canAddRoom: space power levels not found")
                 completion(false)
                 return
             }
-            let userPowerLevel = powerLevels.powerLevelOfUser(withUserID: userId)
+            let userPowerLevel = roomState.powerLevelOfUser(withUserID: userId)
             let minimumPowerLevel = self.minimumPowerLevelForAddingRoom(with: powerLevels)
             let canAddRoom = userPowerLevel >= minimumPowerLevel
 

MatrixSDK/VoIP/MXCallManager.m

@@ -1325,7 +1325,7 @@ + (BOOL)canPlaceConferenceCallInRoom:(MXRoom *)room roomState:(MXRoomState *)roo
     else
     {
         MXRoomPowerLevels *powerLevels = roomState.powerLevels;
-        NSInteger oneSelfPowerLevel = [powerLevels powerLevelOfUserWithUserID:room.mxSession.myUserId];
+        NSInteger oneSelfPowerLevel = [roomState powerLevelOfUserWithUserID:room.mxSession.myUserId];
 
         // Only member with invite power level can create a conference call
         if (oneSelfPowerLevel >= powerLevels.invite)