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Viewing file:     tracestate-validators.js (1.98 KB)      -rw-r--r--

"use strict";
/*
 * 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;
const VALID_KEY_CHAR_RANGE = '[_0-9a-z-*/]';
const VALID_KEY = `[a-z]${VALID_KEY_CHAR_RANGE}{0,255}`;
const VALID_VENDOR_KEY = `[a-z0-9]${VALID_KEY_CHAR_RANGE}{0,240}@[a-z]${VALID_KEY_CHAR_RANGE}{0,13}`;
const VALID_KEY_REGEX = new RegExp(`^(?:${VALID_KEY}|${VALID_VENDOR_KEY})$`);
const VALID_VALUE_BASE_REGEX = /^[ -~]{0,255}[!-~]$/;
const 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;
//# sourceMappingURL=tracestate-validators.js.map