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| 1 | package appconfig |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "crypto/ecdh" |
| 6 | "github.com/carlosframework/platform/internal/hostwrite" |
| 7 | "github.com/carlosframework/platform/internal/registry" |
| 8 | "github.com/carlosframework/platform/internal/release" |
| 9 | ) |
| 10 | |
| 11 | // CheckRenderedIdentity recomputes the exact current ordinary render. It is |
| 12 | // read-only and uses the same merge, binding and encoding as the config writers. |
| 13 | func CheckRenderedIdentity(ctx context.Context, s release.Store, priv *ecdh.PrivateKey, rt registry.Route, id hostwrite.Identity) error { |
| 14 | if id.Config == "" || id.Release != "" { |
| 15 | return hostwrite.ErrUnavailable |
| 16 | } |
| 17 | m, versions, err := LoadMergedHostVersions(ctx, s, release.RouteAccount(rt), rt.App, rt.Environment, rt.Host) |
| 18 | if err != nil { |
| 19 | return err |
| 20 | } |
| 21 | var rendered []byte |
| 22 | if m != nil { |
| 23 | rendered, err = RenderEnv(m, priv, routeBinding(rt)) |
| 24 | if err != nil { |
| 25 | return err |
| 26 | } |
| 27 | if rt.Unit != "" { |
| 28 | rendered = applyAgentVars(rendered) |
| 29 | } else if rt.Addr != "" { |
| 30 | rendered = append([]byte(execAddrConfigHeader), rendered...) |
| 31 | } |
| 32 | } |
| 33 | defaultPresent := m != nil |
| 34 | if rt.Unit != "" { |
| 35 | defaultPresent = versions.Default != "" |
| 36 | } |
| 37 | expected := renderedIdentity(rendered, defaultPresent, rt.Environment != "", versions.Overlay != "") |
| 38 | if id != expected { |
| 39 | return hostwrite.ErrUnavailable |
| 40 | } |
| 41 | return nil |
| 42 | } |
| 43 | |
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