71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
package headscale
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import (
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"strings"
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"github.com/tailscale/hujson"
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"inet.af/netaddr"
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)
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// ACLPolicy represents a Tailscale ACL Policy
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type ACLPolicy struct {
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Groups Groups `json:"Groups"`
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Hosts Hosts `json:"Hosts"`
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TagOwners TagOwners `json:"TagOwners"`
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ACLs []ACL `json:"ACLs"`
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Tests []ACLTest `json:"Tests"`
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}
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// ACL is a basic rule for the ACL Policy
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type ACL struct {
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Action string `json:"Action"`
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Users []string `json:"Users"`
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Ports []string `json:"Ports"`
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}
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// Groups references a series of alias in the ACL rules
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type Groups map[string][]string
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// Hosts are alias for IP addresses or subnets
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type Hosts map[string]netaddr.IPPrefix
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// TagOwners specify what users (namespaces?) are allow to use certain tags
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type TagOwners map[string][]string
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// ACLTest is not implemented, but should be use to check if a certain rule is allowed
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type ACLTest struct {
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User string `json:"User"`
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Allow []string `json:"Allow"`
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Deny []string `json:"Deny,omitempty"`
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}
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// UnmarshalJSON allows to parse the Hosts directly into netaddr objects
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func (h *Hosts) UnmarshalJSON(data []byte) error {
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hosts := Hosts{}
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hs := make(map[string]string)
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err := hujson.Unmarshal(data, &hs)
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if err != nil {
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return err
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}
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for k, v := range hs {
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if !strings.Contains(v, "/") {
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v = v + "/32"
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}
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prefix, err := netaddr.ParseIPPrefix(v)
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if err != nil {
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return err
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}
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hosts[k] = prefix
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}
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*h = hosts
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return nil
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}
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// IsZero is perhaps a bit naive here
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func (p ACLPolicy) IsZero() bool {
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if len(p.Groups) == 0 && len(p.Hosts) == 0 && len(p.ACLs) == 0 {
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return true
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}
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return false
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}
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