10829780662

Committed 12 Sep 2024 11:21AM UTC coverage: 90.495% (-0.3%) from 90.798%

Build # 10829780662

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github

Committed by

hectorgomezv

Commit Message

Init events filter implementation

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92.5

/src/domain/hooks/helpers/event-notifications.helper.ts

import { Inject, Injectable, Module } from '@nestjs/common';
import {
  IMessagesRepository,
  MessagesRepositoryModule,
} from '@/domain/messages/messages.repository.interface';
import {
  ISafeRepository,
  SafeRepositoryModule,
} from '@/domain/safe/safe.repository.interface';
import {
  TransactionEventType,
  ConfigEventType,
} from '@/routes/hooks/entities/event-type.entity';
import { LoggingService, ILoggingService } from '@/logging/logging.interface';
import { Event } from '@/routes/hooks/entities/event.entity';
import {
  INotificationsRepositoryV2,
  NotificationsRepositoryV2Module,
} from '@/domain/notifications/notifications.repository.v2.interface';
import { DeletedMultisigTransactionEvent } from '@/routes/hooks/entities/schemas/deleted-multisig-transaction.schema';
import { ExecutedTransactionEvent } from '@/routes/hooks/entities/schemas/executed-transaction.schema';
import { IncomingEtherEvent } from '@/routes/hooks/entities/schemas/incoming-ether.schema';
import { IncomingTokenEvent } from '@/routes/hooks/entities/schemas/incoming-token.schema';
import { ModuleTransactionEvent } from '@/routes/hooks/entities/schemas/module-transaction.schema';
import { PendingTransactionEvent } from '@/routes/hooks/entities/schemas/pending-transaction.schema';
import { MessageCreatedEvent } from '@/routes/hooks/entities/schemas/message-created.schema';
import {
  IncomingEtherNotification,
  IncomingTokenNotification,
  ConfirmationRequestNotification,
  MessageConfirmationNotification,
  Notification,
  NotificationType,
} from '@/domain/notifications/entities-v2/notification.entity';
import {
  DelegatesV2RepositoryModule,
  IDelegatesV2Repository,
} from '@/domain/delegate/v2/delegates.v2.repository.interface';
import { UUID } from 'crypto';

type EventToNotify =
  | DeletedMultisigTransactionEvent
  | ExecutedTransactionEvent
  | IncomingEtherEvent
  | IncomingTokenEvent
  | ModuleTransactionEvent
  | MessageCreatedEvent
  | PendingTransactionEvent;

@Injectable()
export class EventNotificationsHelper {
  constructor(
    @Inject(IDelegatesV2Repository)
    private readonly delegatesRepository: IDelegatesV2Repository,
    @Inject(IMessagesRepository)
    private readonly messagesRepository: IMessagesRepository,
    @Inject(ISafeRepository)
    private readonly safeRepository: ISafeRepository,
    @Inject(LoggingService)
    private readonly loggingService: ILoggingService,
    @Inject(INotificationsRepositoryV2)
    private readonly notificationsRepository: INotificationsRepositoryV2,
  ) {}

  /**
   * Enqueues notifications for the relevant events to owners/delegates
   * and non-owners/delegates of a Safe accordingly.
   *
   * @param event - {@link Event} to notify about
   */
  public async onEventEnqueueNotifications(event: Event): Promise<unknown> {
    if (!this.isEventToNotify(event)) {
      return;
    }

    const subscriptions = await this.getRelevantSubscribers(event);

    return await Promise.allSettled(
      subscriptions.map(async (subscription) => {
        const data = await this.mapEventNotification(
          event,
          subscription.subscriber,
        );

        if (!data) {
          return;
        }

        return this.notificationsRepository
          .enqueueNotification({
            token: subscription.cloudMessagingToken,
            deviceUuid: subscription.deviceUuid,
            notification: {
              data,
            },
          })
          .then(() => {
            this.loggingService.info('Notification sent successfully');
          })
          .catch((e) => {
            this.loggingService.error(
              `Failed to send notification: ${e.reason}`,
            );
          });
      }),
    );
  }

  /**
   * Checks if the event is to be notified.
   *
   * @param event - {@link Event} to check
   */
  private isEventToNotify(event: Event): event is EventToNotify {
    return (
      // Don't notify about Config events
      event.type !== ConfigEventType.CHAIN_UPDATE &&
      event.type !== ConfigEventType.SAFE_APPS_UPDATE &&
      // We otherwise notify about executed transactions
      event.type !== TransactionEventType.OUTGOING_ETHER &&
      event.type !== TransactionEventType.OUTGOING_TOKEN &&
      // We only notify required confirmations on creation - see PENDING_MULTISIG_TRANSACTION
      event.type !== TransactionEventType.NEW_CONFIRMATION &&
      // We only notify required confirmations on required - see MESSAGE_CREATED
      event.type !== TransactionEventType.MESSAGE_CONFIRMATION &&
      // You cannot subscribe to Safes-to-be-created
      event.type !== TransactionEventType.SAFE_CREATED
    );
  }

  /**
   * Checks if the event an owner/delegate only event.
   * @param event - {@link EventToNotify} to check
   */
  private isOwnerOrDelegateOnlyEventToNotify(
    event: EventToNotify,
  ): event is PendingTransactionEvent | MessageCreatedEvent {
    // We only notify required confirmation events to owners or delegates
    // to prevent other subscribers from receiving "private" events
    return (
      event.type === TransactionEventType.PENDING_MULTISIG_TRANSACTION ||
      event.type === TransactionEventType.MESSAGE_CREATED
    );
  }

  /**
   * Gets subscribers and their device UUID/cloud messaging tokens for the
   * given Safe depending on the event type.
   *
   * @param event - {@link EventToNotify} to get subscribers for
   *
   * @returns - List of subscribers/tokens for given Safe
   */
  private async getRelevantSubscribers(event: EventToNotify): Promise<
    Array<{
      subscriber: `0x${string}` | null;
      deviceUuid: UUID;
      cloudMessagingToken: string;
    }>
  > {
    const subscriptions =
      await this.notificationsRepository.getSubscribersBySafe({
        chainId: event.chainId,
        safeAddress: event.address,
      });

    if (!this.isOwnerOrDelegateOnlyEventToNotify(event)) {
      return subscriptions;
    }

    const ownersAndDelegates = await Promise.allSettled(
      subscriptions.map(async (subscription) => {
        if (!subscription.subscriber) {
          return;
        }

        const isOwnerOrDelegate = await this.isOwnerOrDelegate({
          chainId: event.chainId,
          safeAddress: event.address,
          subscriber: subscription.subscriber,
        });

        if (!isOwnerOrDelegate) {
          return;
        }

        return subscription;
      }),
    );

    return ownersAndDelegates
      .filter(
        <T>(
          item: PromiseSettledResult<T>,
        ): item is PromiseFulfilledResult<NonNullable<T>> => {
          return item.status === 'fulfilled' && !!item.value;
        },
      )
      .map((result) => result.value);
  }

  /**
   * Checks if the subscriber is an owner or delegate of the Safe.
   *
   * @param args.chainId - Chain ID
   * @param args.safeAddress - Safe address
   * @param args.subscriber - Subscriber address
   *
   * @returns - True if the subscriber is an owner or delegate of the Safe, otherwise false
   */
  private async isOwnerOrDelegate(args: {
    chainId: string;
    safeAddress: `0x${string}`;
    subscriber: `0x${string}`;
  }): Promise<boolean> {
    // We don't use Promise.all avoid unnecessary calls for delegates
    const safe = await this.safeRepository.getSafe({
      chainId: args.chainId,
      address: args.safeAddress,
    });
    if (safe?.owners.includes(args.subscriber)) {
      return true;
    }

    const delegates = await this.delegatesRepository.getDelegates(args);
    return !!delegates?.results.some((delegate) => {
      return (
        delegate.safe === args.safeAddress &&
        delegate.delegate === args.subscriber
      );
    });
  }

  /**
   * Maps an {@link EventToNotify} to a notification.
   *
   * @param event - {@link EventToNotify} to map
   * @param subscriber - Subscriber address
   *
   * @returns - The {@link Notification} if the conditions are met, otherwise null
   */
  private async mapEventNotification(
    event: EventToNotify,
    subscriber: `0x${string}` | null,
  ): Promise<Notification | null> {
    if (
      event.type === TransactionEventType.INCOMING_ETHER ||
      event.type === TransactionEventType.INCOMING_TOKEN
    ) {
      return await this.mapIncomingAssetEventNotification(event);
    } else if (
      event.type === TransactionEventType.PENDING_MULTISIG_TRANSACTION
    ) {
      if (!subscriber) {
        return null;
      }
      return await this.mapPendingMultisigTransactionEventNotification(
        event,
        subscriber,
      );
    } else if (event.type === TransactionEventType.MESSAGE_CREATED) {
      if (!subscriber) {
        return null;
      }
      return await this.mapMessageCreatedEventNotification(event, subscriber);
    } else {
      return event;
    }
  }

  /**
   * Maps {@link IncomingEtherEvent} or {@link IncomingTokenEvent} to {@link IncomingEtherNotification} or {@link IncomingTokenNotification} if:
   *
   * - The asset was sent to the Safe by another address.
   *
   * @param event - {@link IncomingEtherEvent} or {@link IncomingTokenEvent} to map
   *
   * @returns - The {@link IncomingEtherNotification} or {@link IncomingTokenNotification} if the conditions are met, otherwise null
   */
  private async mapIncomingAssetEventNotification(
    event: IncomingEtherEvent | IncomingTokenEvent,
  ): Promise<IncomingEtherNotification | IncomingTokenNotification | null> {
    const incomingTransfers = await this.safeRepository
      .getIncomingTransfers({
        chainId: event.chainId,
        safeAddress: event.address,
        txHash: event.txHash,
      })
      .catch(() => null);

    const transfer = incomingTransfers?.results?.find((result) => {
      return result.transactionHash === event.txHash;
    });

    // Asset sent to self - do not notify
    if (transfer?.from === event.address) {
      return null;
    }

    return event;
  }

  /**
   * Maps {@link PendingTransactionEvent} to {@link ConfirmationRequestNotification} if:
   *
   * - The Safe has a threshold > 1.
   * - The subscriber didn't create the transaction.
   *
   * @param event - {@link PendingTransactionEvent} to map
   * @param subscriber - Subscriber address
   *
   * @returns - The {@link ConfirmationRequestNotification} if the conditions are met, otherwise null
   */
  private async mapPendingMultisigTransactionEventNotification(
    event: PendingTransactionEvent,
    subscriber: `0x${string}`,
  ): Promise<ConfirmationRequestNotification | null> {
    const safe = await this.safeRepository.getSafe({
      chainId: event.chainId,
      address: event.address,
    });

    // Transaction is confirmed and awaiting execution - do not notify
    if (safe.threshold === 1) {
      return null;
    }

    const transaction = await this.safeRepository.getMultiSigTransaction({
      chainId: event.chainId,
      safeTransactionHash: event.safeTxHash,
    });

    // Subscriber has already signed - do not notify
    const hasSubscriberSigned = transaction.confirmations?.some(
      (confirmation) => {
        return confirmation.owner === subscriber;
      },
    );
    if (hasSubscriberSigned) {
      return null;
    }

    return {
      type: NotificationType.CONFIRMATION_REQUEST,
      chainId: event.chainId,
      address: event.address,
      safeTxHash: event.safeTxHash,
    };
  }

  /**
   * Maps {@link MessageCreatedEvent} to {@link MessageConfirmationNotification} if:
   *
   * - The Safe has a threshold > 1.
   * - The subscriber didn't create the message.
   *
   * @param event - {@link MessageCreatedEvent} to map
   * @param subscriber - Subscriber address
   *
   * @returns - The {@link MessageConfirmationNotification} if the conditions are met, otherwise null
   */
  private async mapMessageCreatedEventNotification(
    event: MessageCreatedEvent,
    subscriber: `0x${string}`,
  ): Promise<MessageConfirmationNotification | null> {
    const safe = await this.safeRepository.getSafe({
      chainId: event.chainId,
      address: event.address,
    });

    // Message is confirmed - do not notify
    if (safe.threshold === 1) {
      return null;
    }

    const message = await this.messagesRepository.getMessageByHash({
      chainId: event.chainId,
      messageHash: event.messageHash,
    });

    // Subscriber has already signed - do not notify
    const hasSubscriberSigned = message.confirmations.some((confirmation) => {
      return confirmation.owner === subscriber;
    });
    if (hasSubscriberSigned) {
      return null;
    }

    return {
      type: NotificationType.MESSAGE_CONFIRMATION_REQUEST,
      chainId: event.chainId,
      address: event.address,
      messageHash: event.messageHash,
    };
  }
}

@Module({
  imports: [
    DelegatesV2RepositoryModule,
    MessagesRepositoryModule,
    SafeRepositoryModule,
    NotificationsRepositoryV2Module,
  ],
  providers: [EventNotificationsHelper],
  exports: [EventNotificationsHelper],
})
export class EventNotificationsHelperModule {}

1	import { Inject, Injectable, Module } from '@nestjs/common';	96✔
2	import {	96✔
3	IMessagesRepository,
4	MessagesRepositoryModule,
5	} from '@/domain/messages/messages.repository.interface';
6	import {	96✔
7	ISafeRepository,
8	SafeRepositoryModule,
9	} from '@/domain/safe/safe.repository.interface';
10	import {	96✔
11	TransactionEventType,
12	ConfigEventType,
13	} from '@/routes/hooks/entities/event-type.entity';
14	import { LoggingService, ILoggingService } from '@/logging/logging.interface';	96✔
15	import { Event } from '@/routes/hooks/entities/event.entity';
16	import {	96✔
17	INotificationsRepositoryV2,
18	NotificationsRepositoryV2Module,
19	} from '@/domain/notifications/notifications.repository.v2.interface';
20	import { DeletedMultisigTransactionEvent } from '@/routes/hooks/entities/schemas/deleted-multisig-transaction.schema';
21	import { ExecutedTransactionEvent } from '@/routes/hooks/entities/schemas/executed-transaction.schema';
22	import { IncomingEtherEvent } from '@/routes/hooks/entities/schemas/incoming-ether.schema';
23	import { IncomingTokenEvent } from '@/routes/hooks/entities/schemas/incoming-token.schema';
24	import { ModuleTransactionEvent } from '@/routes/hooks/entities/schemas/module-transaction.schema';
25	import { PendingTransactionEvent } from '@/routes/hooks/entities/schemas/pending-transaction.schema';
26	import { MessageCreatedEvent } from '@/routes/hooks/entities/schemas/message-created.schema';
27	import {	96✔
28	IncomingEtherNotification,
29	IncomingTokenNotification,
30	ConfirmationRequestNotification,
31	MessageConfirmationNotification,
32	Notification,
33	NotificationType,
34	} from '@/domain/notifications/entities-v2/notification.entity';
35	import {	96✔
36	DelegatesV2RepositoryModule,
37	IDelegatesV2Repository,
38	} from '@/domain/delegate/v2/delegates.v2.repository.interface';
39	import { UUID } from 'crypto';
40
41	type EventToNotify =
42	\| DeletedMultisigTransactionEvent
43	\| ExecutedTransactionEvent
44	\| IncomingEtherEvent
45	\| IncomingTokenEvent
46	\| ModuleTransactionEvent
47	\| MessageCreatedEvent
48	\| PendingTransactionEvent;
49
50	@Injectable()
51	export class EventNotificationsHelper {	96✔
52	constructor(
53	@Inject(IDelegatesV2Repository)
54	private readonly delegatesRepository: IDelegatesV2Repository,	138✔
55	@Inject(IMessagesRepository)
56	private readonly messagesRepository: IMessagesRepository,	138✔
57	@Inject(ISafeRepository)
58	private readonly safeRepository: ISafeRepository,	138✔
59	@Inject(LoggingService)
60	private readonly loggingService: ILoggingService,	138✔
61	@Inject(INotificationsRepositoryV2)
62	private readonly notificationsRepository: INotificationsRepositoryV2,	138✔
63	) {}
64
65	/**
66	* Enqueues notifications for the relevant events to owners/delegates
67	* and non-owners/delegates of a Safe accordingly.
68	*
69	* @param event - {@link Event} to notify about
70	*/
71	public async onEventEnqueueNotifications(event: Event): Promise<unknown> {
72	if (!this.isEventToNotify(event)) {	70!
UNCOV 73	return;	×
74	}
75
76	const subscriptions = await this.getRelevantSubscribers(event);	70✔
77
78	return await Promise.allSettled(	70✔
79	subscriptions.map(async (subscription) => {
80	const data = await this.mapEventNotification(	188✔
81	event,
82	subscription.subscriber,
83	);
84
85	if (!data) {	188✔
86	return;	80✔
87	}
88
89	return this.notificationsRepository	108✔
90	.enqueueNotification({
91	token: subscription.cloudMessagingToken,
92	deviceUuid: subscription.deviceUuid,
93	notification: {
94	data,
95	},
96	})
97	.then(() => {
98	this.loggingService.info('Notification sent successfully');	102✔
99	})
100	.catch((e) => {
101	this.loggingService.error(	6✔
102	`Failed to send notification: ${e.reason}`,
103	);
104	});
105	}),
106	);
107	}
108
109	/**
110	* Checks if the event is to be notified.
111	*
112	* @param event - {@link Event} to check
113	*/
114	private isEventToNotify(event: Event): event is EventToNotify {
115	return (	70✔
116	// Don't notify about Config events
117	event.type !== ConfigEventType.CHAIN_UPDATE &&	245✔
118	event.type !== ConfigEventType.SAFE_APPS_UPDATE &&
119	// We otherwise notify about executed transactions
120	event.type !== TransactionEventType.OUTGOING_ETHER &&
121	event.type !== TransactionEventType.OUTGOING_TOKEN &&
122	// We only notify required confirmations on creation - see PENDING_MULTISIG_TRANSACTION
123	event.type !== TransactionEventType.NEW_CONFIRMATION &&
124	// We only notify required confirmations on required - see MESSAGE_CREATED
125	event.type !== TransactionEventType.MESSAGE_CONFIRMATION &&
126	// You cannot subscribe to Safes-to-be-created
127	event.type !== TransactionEventType.SAFE_CREATED
128	);
129	}
130
131	/**
132	* Checks if the event an owner/delegate only event.
133	* @param event - {@link EventToNotify} to check
134	*/
135	private isOwnerOrDelegateOnlyEventToNotify(
136	event: EventToNotify,
137	): event is PendingTransactionEvent \| MessageCreatedEvent {
138	// We only notify required confirmation events to owners or delegates
139	// to prevent other subscribers from receiving "private" events
140	return (	70✔
141	event.type === TransactionEventType.PENDING_MULTISIG_TRANSACTION \|\|	59✔
142	event.type === TransactionEventType.MESSAGE_CREATED
143	);
144	}
145
146	/**
147	* Gets subscribers and their device UUID/cloud messaging tokens for the
148	* given Safe depending on the event type.
149	*
150	* @param event - {@link EventToNotify} to get subscribers for
151	*
152	* @returns - List of subscribers/tokens for given Safe
153	*/
154	private async getRelevantSubscribers(event: EventToNotify): Promise<
155	Array<{
156	subscriber: `0x${string}` \| null;
157	deviceUuid: UUID;
158	cloudMessagingToken: string;
159	}>
160	> {
161	const subscriptions =
162	await this.notificationsRepository.getSubscribersBySafe({	70✔
163	chainId: event.chainId,
164	safeAddress: event.address,
165	});
166
167	if (!this.isOwnerOrDelegateOnlyEventToNotify(event)) {	70✔
168	return subscriptions;	26✔
169	}
170
171	const ownersAndDelegates = await Promise.allSettled(	44✔
172	subscriptions.map(async (subscription) => {
173	if (!subscription.subscriber) {	144✔
174	return;	10✔
175	}
176
177	const isOwnerOrDelegate = await this.isOwnerOrDelegate({	134✔
178	chainId: event.chainId,
179	safeAddress: event.address,
180	subscriber: subscription.subscriber,
181	});
182
183	if (!isOwnerOrDelegate) {	134✔
184	return;	10✔
185	}
186
187	return subscription;	124✔
188	}),
189	);
190
191	return ownersAndDelegates	44✔
192	.filter(
193	<T>(
194	item: PromiseSettledResult<T>,
195	): item is PromiseFulfilledResult<NonNullable<T>> => {
196	return item.status === 'fulfilled' && !!item.value;	144✔
197	},
198	)
199	.map((result) => result.value);	124✔
200	}
201
202	/**
203	* Checks if the subscriber is an owner or delegate of the Safe.
204	*
205	* @param args.chainId - Chain ID
206	* @param args.safeAddress - Safe address
207	* @param args.subscriber - Subscriber address
208	*
209	* @returns - True if the subscriber is an owner or delegate of the Safe, otherwise false
210	*/
211	private async isOwnerOrDelegate(args: {
212	chainId: string;
213	safeAddress: `0x${string}`;
214	subscriber: `0x${string}`;
215	}): Promise<boolean> {
216	// We don't use Promise.all avoid unnecessary calls for delegates
217	const safe = await this.safeRepository.getSafe({	134✔
218	chainId: args.chainId,
219	address: args.safeAddress,
220	});
221	if (safe?.owners.includes(args.subscriber)) {	134!
222	return true;	84✔
223	}
224
225	const delegates = await this.delegatesRepository.getDelegates(args);	50✔
226	return !!delegates?.results.some((delegate) => {	50!
227	return (	88✔
228	delegate.safe === args.safeAddress &&	88✔
229	delegate.delegate === args.subscriber
230	);
231	});
232	}
233
234	/**
235	* Maps an {@link EventToNotify} to a notification.
236	*
237	* @param event - {@link EventToNotify} to map
238	* @param subscriber - Subscriber address
239	*
240	* @returns - The {@link Notification} if the conditions are met, otherwise null
241	*/
242	private async mapEventNotification(
243	event: EventToNotify,
244	subscriber: `0x${string}` \| null,
245	): Promise<Notification \| null> {
246	if (	188✔
247	event.type === TransactionEventType.INCOMING_ETHER \|\|	181✔
248	event.type === TransactionEventType.INCOMING_TOKEN
249	) {
250	return await this.mapIncomingAssetEventNotification(event);	32✔
251	} else if (	156✔
252	event.type === TransactionEventType.PENDING_MULTISIG_TRANSACTION
253	) {
254	if (!subscriber) {	60!
255	return null;	×
256	}
257	return await this.mapPendingMultisigTransactionEventNotification(	60✔
258	event,
259	subscriber,
260	);
261	} else if (event.type === TransactionEventType.MESSAGE_CREATED) {	96✔
262	if (!subscriber) {	64!
263	return null;	×
264	}
265	return await this.mapMessageCreatedEventNotification(event, subscriber);	64✔
266	} else {
267	return event;	32✔
268	}
269	}
270
271	/**
272	* Maps {@link IncomingEtherEvent} or {@link IncomingTokenEvent} to {@link IncomingEtherNotification} or {@link IncomingTokenNotification} if:
273	*
274	* - The asset was sent to the Safe by another address.
275	*
276	* @param event - {@link IncomingEtherEvent} or {@link IncomingTokenEvent} to map
277	*
278	* @returns - The {@link IncomingEtherNotification} or {@link IncomingTokenNotification} if the conditions are met, otherwise null
279	*/
280	private async mapIncomingAssetEventNotification(
281	event: IncomingEtherEvent \| IncomingTokenEvent,
282	): Promise<IncomingEtherNotification \| IncomingTokenNotification \| null> {
283	const incomingTransfers = await this.safeRepository	32✔
284	.getIncomingTransfers({
285	chainId: event.chainId,
286	safeAddress: event.address,
287	txHash: event.txHash,
288	})
289	.catch(() => null);	4✔
290
291	const transfer = incomingTransfers?.results?.find((result) => {	32✔
292	return result.transactionHash === event.txHash;	28✔
293	});
294
295	// Asset sent to self - do not notify
296	if (transfer?.from === event.address) {	32✔
297	return null;	10✔
298	}
299
300	return event;	22✔
301	}
302
303	/**
304	* Maps {@link PendingTransactionEvent} to {@link ConfirmationRequestNotification} if:
305	*
306	* - The Safe has a threshold > 1.
307	* - The subscriber didn't create the transaction.
308	*
309	* @param event - {@link PendingTransactionEvent} to map
310	* @param subscriber - Subscriber address
311	*
312	* @returns - The {@link ConfirmationRequestNotification} if the conditions are met, otherwise null
313	*/
314	private async mapPendingMultisigTransactionEventNotification(
315	event: PendingTransactionEvent,
316	subscriber: `0x${string}`,
317	): Promise<ConfirmationRequestNotification \| null> {
318	const safe = await this.safeRepository.getSafe({	60✔
319	chainId: event.chainId,
320	address: event.address,
321	});
322
323	// Transaction is confirmed and awaiting execution - do not notify
324	if (safe.threshold === 1) {	60✔
325	return null;	16✔
326	}
327
328	const transaction = await this.safeRepository.getMultiSigTransaction({	44✔
329	chainId: event.chainId,
330	safeTransactionHash: event.safeTxHash,
331	});
332
333	// Subscriber has already signed - do not notify
334	const hasSubscriberSigned = transaction.confirmations?.some(	44!
335	(confirmation) => {
336	return confirmation.owner === subscriber;	78✔
337	},
338	);
339	if (hasSubscriberSigned) {	44✔
340	return null;	18✔
341	}
342
343	return {	26✔
344	type: NotificationType.CONFIRMATION_REQUEST,
345	chainId: event.chainId,
346	address: event.address,
347	safeTxHash: event.safeTxHash,
348	};
349	}
350
351	/**
352	* Maps {@link MessageCreatedEvent} to {@link MessageConfirmationNotification} if:
353	*
354	* - The Safe has a threshold > 1.
355	* - The subscriber didn't create the message.
356	*
357	* @param event - {@link MessageCreatedEvent} to map
358	* @param subscriber - Subscriber address
359	*
360	* @returns - The {@link MessageConfirmationNotification} if the conditions are met, otherwise null
361	*/
362	private async mapMessageCreatedEventNotification(
363	event: MessageCreatedEvent,
364	subscriber: `0x${string}`,
365	): Promise<MessageConfirmationNotification \| null> {
366	const safe = await this.safeRepository.getSafe({	64✔
367	chainId: event.chainId,
368	address: event.address,
369	});
370
371	// Message is confirmed - do not notify
372	if (safe.threshold === 1) {	64✔
373	return null;	16✔
374	}
375
376	const message = await this.messagesRepository.getMessageByHash({	48✔
377	chainId: event.chainId,
378	messageHash: event.messageHash,
379	});
380
381	// Subscriber has already signed - do not notify
382	const hasSubscriberSigned = message.confirmations.some((confirmation) => {	48✔
383	return confirmation.owner === subscriber;	134✔
384	});
385	if (hasSubscriberSigned) {	48✔
386	return null;	20✔
387	}
388
389	return {	28✔
390	type: NotificationType.MESSAGE_CONFIRMATION_REQUEST,
391	chainId: event.chainId,
392	address: event.address,
393	messageHash: event.messageHash,
394	};
395	}
396	}
397
398	@Module({
399	imports: [
400	DelegatesV2RepositoryModule,
401	MessagesRepositoryModule,
402	SafeRepositoryModule,
403	NotificationsRepositoryV2Module,
404	],
405	providers: [EventNotificationsHelper],
406	exports: [EventNotificationsHelper],
407	})
408	export class EventNotificationsHelperModule {}	96✔

safe-global / safe-client-gateway / 10829780662

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