package encoding

import "github.com/hashicorp/go-cty-funcs/encoding"

Index ¶

• Variables
• func Base64Decode(str cty.Value) (cty.Value, error)
• func Base64Encode(str cty.Value) (cty.Value, error)
• func URLEncode(str cty.Value) (cty.Value, error)

Variables ¶

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
	},
})

Base64DecodeFunc is a function that decodes a string containing 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
	},
})

Base64EncodeFunc is a function that encodes a string to a base64 sequence.

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
	},
})

URLEncodeFunc is a function that applies URL encoding to a given string.

Functions ¶

func Base64Decode ¶

func Base64Decode(str cty.Value) (cty.Value, error)

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 Base64Encode ¶

func Base64Encode(str cty.Value) (cty.Value, error)

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 URLEncode ¶

func URLEncode(str cty.Value) (cty.Value, error)

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.

Source Files ¶

base64.go url.go