1 files changed, 140 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/lang/funcs/encoding.go b/vendor/github.com/hashicorp/terraform/lang/funcs/encoding.go
new file mode 100644
index 0000000..af93f08
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/lang/funcs/encoding.go
@@ -0,0 +1,140 @@
+package funcs
+
+import (
+        "bytes"
+        "compress/gzip"
+        "encoding/base64"
+        "fmt"
+        "log"
+        "net/url"
+        "unicode/utf8"
+
+        "github.com/zclconf/go-cty/cty"
+        "github.com/zclconf/go-cty/cty/function"
+)
+
+// Base64DecodeFunc constructs a function that decodes a string containing a base64 sequence.
+var Base64DecodeFunc = function.New(&function.Spec{
+        Params: []function.Parameter{
+                {
+                        Name: "str",
+                        Type: cty.String,
+                },
+        },
+        Type: function.StaticReturnType(cty.String),
+        Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
+                s := args[0].AsString()
+                sDec, err := base64.StdEncoding.DecodeString(s)
+                if err != nil {
+                        return cty.UnknownVal(cty.String), fmt.Errorf("failed to decode base64 data '%s'", s)
+                }
+                if !utf8.Valid([]byte(sDec)) {
+                        log.Printf("[DEBUG] the result of decoding the the provided string is not valid UTF-8: %s", sDec)
+                        return cty.UnknownVal(cty.String), fmt.Errorf("the result of decoding the the provided string is not valid UTF-8")
+                }
+                return cty.StringVal(string(sDec)), nil
+        },
+})
+
+// Base64EncodeFunc constructs a function that encodes a string to a base64 sequence.
+var Base64EncodeFunc = function.New(&function.Spec{
+        Params: []function.Parameter{
+                {
+                        Name: "str",
+                        Type: cty.String,
+                },
+        },
+        Type: function.StaticReturnType(cty.String),
+        Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
+                return cty.StringVal(base64.StdEncoding.EncodeToString([]byte(args[0].AsString()))), nil
+        },
+})
+
+// Base64GzipFunc constructs a function that compresses a string with gzip and then encodes the result in
+// Base64 encoding.
+var Base64GzipFunc = function.New(&function.Spec{
+        Params: []function.Parameter{
+                {
+                        Name: "str",
+                        Type: cty.String,
+                },
+        },
+        Type: function.StaticReturnType(cty.String),
+        Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
+                s := args[0].AsString()
+
+                var b bytes.Buffer
+                gz := gzip.NewWriter(&b)
+                if _, err := gz.Write([]byte(s)); err != nil {
+                        return cty.UnknownVal(cty.String), fmt.Errorf("failed to write gzip raw data: '%s'", s)
+                }
+                if err := gz.Flush(); err != nil {
+                        return cty.UnknownVal(cty.String), fmt.Errorf("failed to flush gzip writer: '%s'", s)
+                }
+                if err := gz.Close(); err != nil {
+                        return cty.UnknownVal(cty.String), fmt.Errorf("failed to close gzip writer: '%s'", s)
+                }
+                return cty.StringVal(base64.StdEncoding.EncodeToString(b.Bytes())), nil
+        },
+})
+
+// URLEncodeFunc constructs a function that applies URL encoding to a given string.
+var URLEncodeFunc = function.New(&function.Spec{
+        Params: []function.Parameter{
+                {
+                        Name: "str",
+                        Type: cty.String,
+                },
+        },
+        Type: function.StaticReturnType(cty.String),
+        Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
+                return cty.StringVal(url.QueryEscape(args[0].AsString())), nil
+        },
+})
+
+// Base64Decode decodes a string containing a base64 sequence.
+//
+// Terraform uses the "standard" Base64 alphabet as defined in RFC 4648 section 4.
+//
+// Strings in the Terraform language are sequences of unicode characters rather
+// than bytes, so this function will also interpret the resulting bytes as
+// UTF-8. If the bytes after Base64 decoding are _not_ valid UTF-8, this function
+// produces an error.
+func Base64Decode(str cty.Value) (cty.Value, error) {
+        return Base64DecodeFunc.Call([]cty.Value{str})
+}
+
+// Base64Encode applies Base64 encoding to a string.
+//
+// Terraform uses the "standard" Base64 alphabet as defined in RFC 4648 section 4.
+//
+// Strings in the Terraform language are sequences of unicode characters rather
+// than bytes, so this function will first encode the characters from the string
+// as UTF-8, and then apply Base64 encoding to the result.
+func Base64Encode(str cty.Value) (cty.Value, error) {
+        return Base64EncodeFunc.Call([]cty.Value{str})
+}
+
+// Base64Gzip compresses a string with gzip and then encodes the result in
+// Base64 encoding.
+//
+// Terraform uses the "standard" Base64 alphabet as defined in RFC 4648 section 4.
+//
+// Strings in the Terraform language are sequences of unicode characters rather
+// than bytes, so this function will first encode the characters from the string
+// as UTF-8, then apply gzip compression, and then finally apply Base64 encoding.
+func Base64Gzip(str cty.Value) (cty.Value, error) {
+        return Base64GzipFunc.Call([]cty.Value{str})
+}
+
+// URLEncode applies URL encoding to a given string.
+//
+// This function identifies characters in the given string that would have a
+// special meaning when included as a query string argument in a URL and
+// escapes them using RFC 3986 "percent encoding".
+//
+// If the given string contains non-ASCII characters, these are first encoded as
+// UTF-8 and then percent encoding is applied separately to each UTF-8 byte.
+func URLEncode(str cty.Value) (cty.Value, error) {
+        return URLEncodeFunc.Call([]cty.Value{str})
+}