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GUACAMOLE-1383: Use URL-safe client identifiers by default, maintaining backwards compatibility with identifiers using standard base64.

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This commit is contained in:
Michael Jumper
2021-07-20 22:31:12 -07:00
parent e79b7b6e4e
commit 9cb42ade67
1 changed files with 59 additions and 2 deletions
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61
guacamole/src/main/frontend/src/app/navigation/types/ClientIdentifier.js
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@@ -100,6 +100,63 @@ angular.module('navigation').factory('ClientIdentifier', ['$injector',
};
/**
* Encodes the given value as base64url, a variant of base64 defined by
* RFC 4648: https://datatracker.ietf.org/doc/html/rfc4648#section-5.
*
* The "base64url" variant is identical to standard base64 except that it
* uses "-" instead of "+", "_" instead of "/", and padding with "=" is
* optional.
*
* @param {string} value
* The string value to encode.
*
* @returns {string}
* The provided string value encoded as unpadded base64url.
*/
var base64urlEncode = function base64urlEncode(value) {
// Translate padded standard base64 to unpadded base64url
return $window.btoa(value).replace(/[+/=]/g,
(str) => ({
'+' : '-',
'/' : '_',
'=' : ''
})[str]
);
};
/**
* Decodes the given base64url or base64 string. The input string may
* contain "=" padding characters, but this is not required.
*
* @param {string} value
* The base64url or base64 value to decode.
*
* @returns {string}
* The result of decoding the provided base64url or base64 string.
*/
var base64urlDecode = function base64urlDecode(value) {
// Add any missing padding (standard base64 requires input strings to
// be multiples of 4 in length, padded using '=')
value += ([
'',
'===',
'==',
'='
])[value.length % 4];
// Translate padded base64url to padded standard base64
return $window.atob(value.replace(/[-_]/g,
(str) => ({
'-' : '+',
'_' : '/'
})[str]
));
};
/**
* Converts the given ClientIdentifier or ClientIdentifier-like object to
* a String representation. Any object having the same properties as
@@ -115,7 +172,7 @@ angular.module('navigation').factory('ClientIdentifier', ['$injector',
* or ClientIdentifier-like object.
*/
ClientIdentifier.toString = function toString(id) {
return $window.btoa([
return base64urlEncode([
id.id,
id.type,
id.dataSource
@@ -137,7 +194,7 @@ angular.module('navigation').factory('ClientIdentifier', ['$injector',
ClientIdentifier.fromString = function fromString(str) {
try {
var values = $window.atob(str).split('\0');
var values = base64urlDecode(str).split('\0');
return new ClientIdentifier({
id : values[0],
type : values[1],