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acl: move check for Intention.DestinationName into Authorizer 

Follow up to https://github.com/hashicorp/consul/pull/10737#discussion_r680134445

Move the check for the Intention.DestinationName into the Authorizer to remove the
need to check what kind of Authorizer is being used.

It sounds like this check is only for legacy ACLs, so is probably just a safeguard
.
This commit is contained in:
Daniel Nephin 2021-08-04 18:06:44 -04:00
parent bbce192b4d
commit 5b2e5882b4
2 changed files with 3 additions and 9 deletions
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3
acl/policy_authorizer.go
View File

@ -524,6 +524,9 @@ func (p *policyAuthorizer) IntentionRead(prefix string, _ *AuthorizerContext) En
// IntentionWrite checks if writing (creating, updating, or deleting) of an
// intention is allowed.
func (p *policyAuthorizer) IntentionWrite(prefix string, _ *AuthorizerContext) EnforcementDecision {
if prefix == "" {
return Deny
}
if prefix == "*" {
return p.allAllowed(p.intentionRules, AccessWrite)
}

9
agent/structs/intention.go
View File

@ -322,16 +322,7 @@ func (ixn *Intention) CanRead(authz acl.Authorizer) bool {
}
func (ixn *Intention) CanWrite(authz acl.Authorizer) bool {
if authz == acl.ManageAll() {
return true
}
var authzContext acl.AuthorizerContext
// TODO: this line seems to require checking 'authz == acl.ManageAll()' above
if ixn.DestinationName == "" {
return false
}
ixn.FillAuthzContext(&authzContext, true)
return authz.IntentionWrite(ixn.DestinationName, &authzContext) == acl.Allow
}