@opentelemetry/api
Version:
Public API for OpenTelemetry
46 lines • 2.04 kB
JavaScript
;
/*
* Copyright The OpenTelemetry Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.validateValue = exports.validateKey = void 0;
var VALID_KEY_CHAR_RANGE = '[_0-9a-z-*/]';
var VALID_KEY = "[a-z]" + VALID_KEY_CHAR_RANGE + "{0,255}";
var VALID_VENDOR_KEY = "[a-z0-9]" + VALID_KEY_CHAR_RANGE + "{0,240}@[a-z]" + VALID_KEY_CHAR_RANGE + "{0,13}";
var VALID_KEY_REGEX = new RegExp("^(?:" + VALID_KEY + "|" + VALID_VENDOR_KEY + ")$");
var VALID_VALUE_BASE_REGEX = /^[ -~]{0,255}[!-~]$/;
var INVALID_VALUE_COMMA_EQUAL_REGEX = /,|=/;
/**
* Key is opaque string up to 256 characters printable. It MUST begin with a
* lowercase letter, and can only contain lowercase letters a-z, digits 0-9,
* underscores _, dashes -, asterisks *, and forward slashes /.
* For multi-tenant vendor scenarios, an at sign (@) can be used to prefix the
* vendor name. Vendors SHOULD set the tenant ID at the beginning of the key.
* see https://www.w3.org/TR/trace-context/#key
*/
function validateKey(key) {
return VALID_KEY_REGEX.test(key);
}
exports.validateKey = validateKey;
/**
* Value is opaque string up to 256 characters printable ASCII RFC0020
* characters (i.e., the range 0x20 to 0x7E) except comma , and =.
*/
function validateValue(value) {
return (VALID_VALUE_BASE_REGEX.test(value) &&
!INVALID_VALUE_COMMA_EQUAL_REGEX.test(value));
}
exports.validateValue = validateValue;
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