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41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
import { RawMessage } from '../types/RawMessage';
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import {
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ContentMessage,
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MediumGroupChatMessage,
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SessionRequestMessage,
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} from '../messages/outgoing';
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import { EncryptionType, PubKey } from '../types';
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import { SessionProtocol } from '../protocols';
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export async function toRawMessage(
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device: PubKey,
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message: ContentMessage
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): Promise<RawMessage> {
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const timestamp = message.timestamp;
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const ttl = message.ttl();
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const plainTextBuffer = message.plainTextBuffer();
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let encryption: EncryptionType;
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if (message instanceof MediumGroupChatMessage) {
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encryption = EncryptionType.MediumGroup;
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} else if (message instanceof SessionRequestMessage) {
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encryption = EncryptionType.Fallback;
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} else {
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// If we don't have a session yet then send using fallback encryption until we have a session
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const hasSession = await SessionProtocol.hasSession(device);
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encryption = hasSession ? EncryptionType.Signal : EncryptionType.Fallback;
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}
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// tslint:disable-next-line: no-unnecessary-local-variable
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const rawMessage: RawMessage = {
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identifier: message.identifier,
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plainTextBuffer,
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timestamp,
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device: device.key,
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ttl,
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encryption,
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};
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return rawMessage;
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}
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