package random import ( "crypto/rand" "encoding/base64" "encoding/hex" "errors" "math/big" "github.com/hashicorp/errwrap" "github.com/hashicorp/terraform/helper/schema" ) func resourceId() *schema.Resource { return &schema.Resource{ Create: CreateID, Read: RepopulateEncodings, Delete: schema.RemoveFromState, Schema: map[string]*schema.Schema{ "keepers": { Type: schema.TypeMap, Optional: true, ForceNew: true, }, "byte_length": { Type: schema.TypeInt, Required: true, ForceNew: true, }, "b64": { Type: schema.TypeString, Computed: true, Deprecated: "Use b64_url for old behavior, or b64_std for standard base64 encoding", }, "b64_url": { Type: schema.TypeString, Computed: true, }, "b64_std": { Type: schema.TypeString, Computed: true, }, "hex": { Type: schema.TypeString, Computed: true, }, "dec": { Type: schema.TypeString, Computed: true, }, }, } } func CreateID(d *schema.ResourceData, meta interface{}) error { byteLength := d.Get("byte_length").(int) bytes := make([]byte, byteLength) n, err := rand.Reader.Read(bytes) if n != byteLength { return errors.New("generated insufficient random bytes") } if err != nil { return errwrap.Wrapf("error generating random bytes: {{err}}", err) } b64Str := base64.RawURLEncoding.EncodeToString(bytes) d.SetId(b64Str) return RepopulateEncodings(d, meta) } func RepopulateEncodings(d *schema.ResourceData, _ interface{}) error { base64Str := d.Id() bytes, err := base64.RawURLEncoding.DecodeString(base64Str) if err != nil { return errwrap.Wrapf("Error decoding ID: {{err}}", err) } b64StdStr := base64.StdEncoding.EncodeToString(bytes) hexStr := hex.EncodeToString(bytes) bigInt := big.Int{} bigInt.SetBytes(bytes) decStr := bigInt.String() d.Set("b64", base64Str) d.Set("b64_url", base64Str) d.Set("b64_std", b64StdStr) d.Set("hex", hexStr) d.Set("dec", decStr) return nil }