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41 results

requestPartProcessor.go

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  • requestPartProcessor.go 1.99 KiB
    ////////////////////////////////////////////////////////////////////////////////
    // Copyright © 2022 xx foundation                                             //
    //                                                                            //
    // Use of this source code is governed by a license that can be found in the  //
    // LICENSE file.                                                              //
    ////////////////////////////////////////////////////////////////////////////////
    
    package single
    
    import (
    	jww "github.com/spf13/jwalterweatherman"
    	"gitlab.com/elixxir/client/cmix/identity/receptionID"
    	"gitlab.com/elixxir/client/cmix/rounds"
    	"gitlab.com/elixxir/client/single/message"
    	"gitlab.com/elixxir/primitives/format"
    	"gitlab.com/xx_network/primitives/id"
    )
    
    const requestPartProcessorName = "requestPartProcessor"
    
    // requestPartProcessor handles the decryption and collation of request parts.
    type requestPartProcessor struct {
    	myId     *id.ID
    	tag      string
    	cb       func(payloadContents []byte, rounds []rounds.Round)
    	c        *message.Collator
    	cy       cypher
    	roundIDs *roundCollector
    }
    
    func (rpp *requestPartProcessor) Process(msg format.Message,
    	_ receptionID.EphemeralIdentity, round rounds.Round) {
    
    	decrypted, err := rpp.cy.decrypt(msg.GetContents(), msg.GetMac())
    	if err != nil {
    		jww.ERROR.Printf("[SU] Failed to decrypt single-use request payload "+
    			"%d (%s): %+v", rpp.cy.num, rpp.tag, err)
    		return
    	}
    
    	requestPart, err := message.UnmarshalRequestPart(decrypted)
    	if err != nil {
    		jww.ERROR.Printf("[SU] Failed to unmarshal single-use request part "+
    			"payload %d (%s): %+v", rpp.cy.num, rpp.tag, err)
    		return
    	}
    
    	payload, done, err := rpp.c.Collate(requestPart)
    	if err != nil {
    		jww.ERROR.Printf("[SU] Failed to collate single-use request payload "+
    			"%d (%s): %+v", rpp.cy.num, rpp.tag, err)
    		return
    	}
    
    	rpp.roundIDs.add(round)
    
    	if done {
    		rpp.cb(payload, rpp.roundIDs.getList())
    	}
    }
    
    func (rpp *requestPartProcessor) String() string {
    	return requestPartProcessorName
    }