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			92 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			TypeScript
		
	
			
		
		
	
	
			92 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			TypeScript
		
	
import _ from 'lodash';
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import { SignalService } from '../protobuf';
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import { TTL_DEFAULT } from '../session/constants';
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import { CallManager, UserUtils } from '../session/utils';
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import { removeFromCache } from './cache';
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import { EnvelopePlus } from './types';
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import { getNowWithNetworkOffset } from '../session/apis/snode_api/SNodeAPI';
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export async function handleCallMessage(
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  envelope: EnvelopePlus,
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  callMessage: SignalService.CallMessage
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) {
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  const sender = envelope.senderIdentity || envelope.source;
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  const sentTimestamp = _.toNumber(envelope.timestamp);
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  const { type } = callMessage;
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  // we just allow self send of ANSWER message to remove the incoming call dialog when we accepted it from another device
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  if (
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    sender === UserUtils.getOurPubKeyStrFromCache() &&
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    callMessage.type !== SignalService.CallMessage.Type.ANSWER &&
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    callMessage.type !== SignalService.CallMessage.Type.END_CALL
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  ) {
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    window.log.info('Dropping incoming call from ourself');
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    await removeFromCache(envelope);
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    return;
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  }
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  if (CallManager.isCallRejected(callMessage.uuid)) {
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    await removeFromCache(envelope);
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    window.log.info(`Dropping already rejected call from this device ${callMessage.uuid}`);
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    return;
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  }
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  if (type === SignalService.CallMessage.Type.PROVISIONAL_ANSWER) {
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    await removeFromCache(envelope);
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    window.log.info('Skipping callMessage PROVISIONAL_ANSWER');
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    return;
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  }
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  if (type === SignalService.CallMessage.Type.PRE_OFFER) {
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    await removeFromCache(envelope);
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    window.log.info('Skipping callMessage PRE_OFFER');
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    return;
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  }
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  if (type === SignalService.CallMessage.Type.OFFER) {
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    if (Math.max(sentTimestamp - getNowWithNetworkOffset()) > TTL_DEFAULT.CALL_MESSAGE) {
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      window?.log?.info('Dropping incoming OFFER callMessage sent a while ago: ', sentTimestamp);
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      await removeFromCache(envelope);
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      return;
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    }
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    await removeFromCache(envelope);
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    await CallManager.handleCallTypeOffer(sender, callMessage, sentTimestamp);
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    return;
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  }
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  if (type === SignalService.CallMessage.Type.END_CALL) {
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    await removeFromCache(envelope);
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    await CallManager.handleCallTypeEndCall(sender, callMessage.uuid);
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    return;
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  }
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  if (type === SignalService.CallMessage.Type.ANSWER) {
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    await removeFromCache(envelope);
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    await CallManager.handleCallTypeAnswer(sender, callMessage, sentTimestamp);
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    return;
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  }
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  if (type === SignalService.CallMessage.Type.ICE_CANDIDATES) {
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    await removeFromCache(envelope);
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    await CallManager.handleCallTypeIceCandidates(sender, callMessage, sentTimestamp);
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    return;
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  }
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  await removeFromCache(envelope);
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  // if this another type of call message, just add it to the manager
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  await CallManager.handleOtherCallTypes(sender, callMessage, sentTimestamp);
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}
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