package.build.cjs.utils.traceData.js Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of core Show documentation
Base implementation for all Sentry JavaScript SDKs
There is a newer version: 8.39.0
Object.defineProperty(exports, '__esModule', { value: true });

const utils = require('@sentry/utils');
const currentScopes = require('../currentScopes.js');
require('../tracing/errors.js');
require('../debug-build.js');
const spanUtils = require('./spanUtils.js');
const dynamicSamplingContext = require('../tracing/dynamicSamplingContext.js');

/**
 * Extracts trace propagation data from the current span or from the client's scope (via transaction or propagation
 * context) and serializes it to `sentry-trace` and `baggage` values to strings. These values can be used to propagate
 * a trace via our tracing Http headers or Html `` tags.
 *
 * This function also applies some validation to the generated sentry-trace and baggage values to ensure that
 * only valid strings are returned.
 *
 * @param span a span to take the trace data from. By default, the currently active span is used.
 * @param scope the scope to take trace data from By default, the active current scope is used.
 * @param client the SDK's client to take trace data from. By default, the current client is used.
 *
 * @returns an object with the tracing data values. The object keys are the name of the tracing key to be used as header
 * or meta tag name.
 */
function getTraceData(span, scope, client) {
  const clientToUse = client || currentScopes.getClient();
  const scopeToUse = scope || currentScopes.getCurrentScope();
  const spanToUse = span || spanUtils.getActiveSpan();

  const { dsc, sampled, traceId } = scopeToUse.getPropagationContext();
  const rootSpan = spanToUse && spanUtils.getRootSpan(spanToUse);

  const sentryTrace = spanToUse ? spanUtils.spanToTraceHeader(spanToUse) : utils.generateSentryTraceHeader(traceId, undefined, sampled);

  const dynamicSamplingContext$1 = rootSpan
    ? dynamicSamplingContext.getDynamicSamplingContextFromSpan(rootSpan)
    : dsc
      ? dsc
      : clientToUse
        ? dynamicSamplingContext.getDynamicSamplingContextFromClient(traceId, clientToUse)
        : undefined;

  const baggage = utils.dynamicSamplingContextToSentryBaggageHeader(dynamicSamplingContext$1);

  const isValidSentryTraceHeader = utils.TRACEPARENT_REGEXP.test(sentryTrace);
  if (!isValidSentryTraceHeader) {
    utils.logger.warn('Invalid sentry-trace data. Cannot generate trace data');
    return {};
  }

  const validBaggage = isValidBaggageString(baggage);
  if (!validBaggage) {
    utils.logger.warn('Invalid baggage data. Not returning "baggage" value');
  }

  return {
    'sentry-trace': sentryTrace,
    ...(validBaggage && { baggage }),
  };
}

/**
 * Tests string against baggage spec as defined in:
 *
 * - W3C Baggage grammar: https://www.w3.org/TR/baggage/#definition
 * - RFC7230 token definition: https://datatracker.ietf.org/doc/html/rfc7230#section-3.2.6
 *
 * exported for testing
 */
function isValidBaggageString(baggage) {
  if (!baggage || !baggage.length) {
    return false;
  }
  const keyRegex = "[-!#$%&'*+.^_`|~A-Za-z0-9]+";
  const valueRegex = '[!#-+-./0-9:<=>?@A-Z\\[\\]a-z{-}]+';
  const spaces = '\\s*';
  // eslint-disable-next-line @sentry-internal/sdk/no-regexp-constructor -- RegExp for readability, no user input
  const baggageRegex = new RegExp(
    `^${keyRegex}${spaces}=${spaces}${valueRegex}(${spaces},${spaces}${keyRegex}${spaces}=${spaces}${valueRegex})*$`,
  );
  return baggageRegex.test(baggage);
}

exports.getTraceData = getTraceData;
exports.isValidBaggageString = isValidBaggageString;
//# sourceMappingURL=traceData.js.map