func (ix *Index) populateClaim(fetcher *missTrackFetcher, b *schema.Blob, mm *mutationMap) error {
br := b.BlobRef()
claim, ok := b.AsClaim()
if !ok {
// Skip bogus claim with malformed permanode.
return nil
}
vr := jsonsign.NewVerificationRequest(b.JSON(), blob.NewSerialFetcher(ix.KeyFetcher, fetcher))
if !vr.Verify() {
// TODO(bradfitz): ask if the vr.Err.(jsonsign.Error).IsPermanent() and retry
// later if it's not permanent? or maybe do this up a level?
if vr.Err != nil {
return vr.Err
}
return errors.New("index: populateClaim verification failure")
}
verifiedKeyId := vr.SignerKeyId
mm.Set("signerkeyid:"+vr.CamliSigner.String(), verifiedKeyId)
if claim.ClaimType() == string(schema.DeleteClaim) {
if err := ix.populateDeleteClaim(claim, vr, mm); err != nil {
return err
}
mm.noteDelete(claim)
return nil
}
pnbr := claim.ModifiedPermanode()
if !pnbr.Valid() {
// A different type of claim; not modifying a permanode.
return nil
}
attr, value := claim.Attribute(), claim.Value()
recentKey := keyRecentPermanode.Key(verifiedKeyId, claim.ClaimDateString(), br)
mm.Set(recentKey, pnbr.String())
claimKey := keyPermanodeClaim.Key(pnbr, verifiedKeyId, claim.ClaimDateString(), br)
mm.Set(claimKey, keyPermanodeClaim.Val(claim.ClaimType(), attr, value, vr.CamliSigner))
if strings.HasPrefix(attr, "camliPath:") {
targetRef, ok := blob.Parse(value)
if ok {
// TODO: deal with set-attribute vs. del-attribute
// properly? I think we get it for free when
// del-attribute has no Value, but we need to deal
// with the case where they explicitly delete the
// current value.
suffix := attr[len("camliPath:"):]
active := "Y"
if claim.ClaimType() == "del-attribute" {
active = "N"
}
baseRef := pnbr
claimRef := br
key := keyPathBackward.Key(verifiedKeyId, targetRef, claimRef)
val := keyPathBackward.Val(claim.ClaimDateString(), baseRef, active, suffix)
mm.Set(key, val)
key = keyPathForward.Key(verifiedKeyId, baseRef, suffix, claim.ClaimDateString(), claimRef)
val = keyPathForward.Val(active, targetRef)
mm.Set(key, val)
}
}
if claim.ClaimType() != string(schema.DelAttributeClaim) && IsIndexedAttribute(attr) {
key := keySignerAttrValue.Key(verifiedKeyId, attr, value, claim.ClaimDateString(), br)
mm.Set(key, keySignerAttrValue.Val(pnbr))
}
if IsBlobReferenceAttribute(attr) {
targetRef, ok := blob.Parse(value)
if ok {
key := keyEdgeBackward.Key(targetRef, pnbr, br)
mm.Set(key, keyEdgeBackward.Val("permanode", ""))
}
}
return nil
}