open-consul/agent/consul/acl_client.go

78 lines
2.7 KiB
Go

package consul
import (
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/structs"
)
var clientACLCacheConfig *structs.ACLCachesConfig = &structs.ACLCachesConfig{
// The ACL cache configuration on client agents is more conservative than
// on the servers. It is assumed that individual client agents will have
// fewer distinct identities accessing the client than a server would
// and thus can put smaller limits on the amount of ACL caching done.
//
// Identities - number of identities/acl tokens that can be cached
Identities: 1024,
// Policies - number of unparsed ACL policies that can be cached
Policies: 128,
// ParsedPolicies - number of parsed ACL policies that can be cached
ParsedPolicies: 128,
// Authorizers - number of compiled multi-policy effective policies that can be cached
Authorizers: 256,
// Roles - number of ACL roles that can be cached
Roles: 128,
}
func (c *Client) ACLDatacenter() string {
// For resolution running on clients, servers within the current datacenter
// must be queried first to pick up local tokens.
return c.config.Datacenter
}
func (c *Client) ResolveIdentityFromToken(token string) (bool, structs.ACLIdentity, error) {
// clients do no local identity resolution at the moment
return false, nil, nil
}
func (c *Client) ResolvePolicyFromID(policyID string) (bool, *structs.ACLPolicy, error) {
// clients do no local policy resolution at the moment
return false, nil, nil
}
func (c *Client) ResolveRoleFromID(roleID string) (bool, *structs.ACLRole, error) {
// clients do no local role resolution at the moment
return false, nil, nil
}
func (c *Client) ResolveTokenToIdentity(token string) (structs.ACLIdentity, error) {
// not using ResolveTokenToIdentityAndAuthorizer because in this case we don't
// need to resolve the roles, policies and namespace but just want the identity
// information such as accessor id.
return c.acls.ResolveTokenToIdentity(token)
}
// TODO: Server has an identical implementation, remove duplication
func (c *Client) ResolveTokenAndDefaultMeta(token string, entMeta *structs.EnterpriseMeta, authzContext *acl.AuthorizerContext) (acl.Authorizer, error) {
identity, authz, err := c.acls.ResolveTokenToIdentityAndAuthorizer(token)
if err != nil {
return nil, err
}
if entMeta == nil {
entMeta = &structs.EnterpriseMeta{}
}
// Default the EnterpriseMeta based on the Tokens meta or actual defaults
// in the case of unknown identity
if identity != nil {
entMeta.Merge(identity.EnterpriseMetadata())
} else {
entMeta.Merge(structs.DefaultEnterpriseMetaInDefaultPartition())
}
// Use the meta to fill in the ACL authorization context
entMeta.FillAuthzContext(authzContext)
return authz, err
}