(jsCode string)
| 49 | } |
| 50 | |
| 51 | func executeVQDHashScript(jsCode string) (string, error) { |
| 52 | vm := goja.New() |
| 53 | if err := installVQDHelpers(vm); err != nil { |
| 54 | return "", err |
| 55 | } |
| 56 | if _, err := vm.RunString(vqdBrowserPrelude); err != nil { |
| 57 | return "", fmt.Errorf("initialize vqd browser mock: %w", err) |
| 58 | } |
| 59 | |
| 60 | value, err := vm.RunString(jsCode) |
| 61 | if err != nil { |
| 62 | return "", fmt.Errorf("execute vqd hash script: %s", jsErrorString(vm, err, nil)) |
| 63 | } |
| 64 | |
| 65 | if promise, ok := value.Export().(*goja.Promise); ok { |
| 66 | switch promise.State() { |
| 67 | case goja.PromiseStateFulfilled: |
| 68 | value = promise.Result() |
| 69 | case goja.PromiseStateRejected: |
| 70 | return "", fmt.Errorf("vqd hash script rejected: %s", jsErrorString(vm, nil, promise.Result())) |
| 71 | default: |
| 72 | return "", errors.New("vqd hash script did not resolve") |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | vm.Set("__vqd_result", value) |
| 77 | payload, err := vm.RunString(vqdResultMutationScript) |
| 78 | if err != nil { |
| 79 | return "", fmt.Errorf("encode vqd hash result: %s", jsErrorString(vm, err, nil)) |
| 80 | } |
| 81 | if goja.IsUndefined(payload) || goja.IsNull(payload) { |
| 82 | return "", errors.New("vqd hash script returned an empty result") |
| 83 | } |
| 84 | |
| 85 | return payload.String(), nil |
| 86 | } |
| 87 | |
| 88 | func installVQDHelpers(vm *goja.Runtime) error { |
| 89 | if err := vm.Set("__goVQDUserAgent", vqdUserAgent()); err != nil { |
no test coverage detected