Golang Publication.Contents Examples

Example #1

File: broker.go Project: ericnorway/arbitraryFailures

// alterPublication will maliciously alter a publications information.
// It returns true if the publication was altered.
// It takes as input the publication.
func (b *Broker) alterPublication(pub *pb.Publication) pb.Publication {
	tempPub := pb.Publication{
		PubType:       pub.PubType,
		PublisherID:   pub.PublisherID,
		PublicationID: pub.PublicationID,
		TopicID:       pub.TopicID,
		BrokerID:      pub.BrokerID,
	}

	for i := range pub.Contents {
		tempPub.Contents = append(tempPub.Contents, pub.Contents[i])
	}
	for i := range pub.ChainMACs {
		tempPub.ChainMACs = append(tempPub.ChainMACs, pub.ChainMACs[i])
	}

	r := b.random.Intn(101)

	if r <= b.maliciousPercent {
		var alterType int

		if len(tempPub.ChainMACs) > 0 {
			alterType = r % 6
		} else {
			alterType = r % 5
		}
		switch alterType {
		case 0:
			tempPub.PublicationID = tempPub.PublicationID + 1
		case 1:
			tempPub.PublisherID = tempPub.PublisherID + 1
		case 2:
			tempPub.BrokerID = tempPub.BrokerID + 1
		case 3:
			tempPub.TopicID = tempPub.TopicID + 1
		case 4:
			if len(tempPub.Contents) > 0 {
				tempPub.Contents[0] = badMessage
			}
		case 5:
			tempPub.ChainMACs = nil
		}
	}

	return tempPub
}