init

node_modules/@sentry/utils/cjs/tracing.js

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+Object.defineProperty(exports, '__esModule', { value: true });
+
+const baggage = require('./baggage.js');
+const misc = require('./misc.js');
+
+// eslint-disable-next-line @sentry-internal/sdk/no-regexp-constructor -- RegExp is used for readability here
+const TRACEPARENT_REGEXP = new RegExp(
+  '^[ \\t]*' + // whitespace
+    '([0-9a-f]{32})?' + // trace_id
+    '-?([0-9a-f]{16})?' + // span_id
+    '-?([01])?' + // sampled
+    '[ \\t]*$', // whitespace
+);
+
+/**
+ * Extract transaction context data from a `sentry-trace` header.
+ *
+ * @param traceparent Traceparent string
+ *
+ * @returns Object containing data from the header, or undefined if traceparent string is malformed
+ */
+function extractTraceparentData(traceparent) {
+  if (!traceparent) {
+    return undefined;
+  }
+
+  const matches = traceparent.match(TRACEPARENT_REGEXP);
+  if (!matches) {
+    return undefined;
+  }
+
+  let parentSampled;
+  if (matches[3] === '1') {
+    parentSampled = true;
+  } else if (matches[3] === '0') {
+    parentSampled = false;
+  }
+
+  return {
+    traceId: matches[1],
+    parentSampled,
+    parentSpanId: matches[2],
+  };
+}
+
+/**
+ * Create tracing context from incoming headers.
+ *
+ * @deprecated Use `propagationContextFromHeaders` instead.
+ */
+// TODO(v8): Remove this function
+function tracingContextFromHeaders(
+  sentryTrace,
+  baggage$1,
+)
+
+ {
+  const traceparentData = extractTraceparentData(sentryTrace);
+  const dynamicSamplingContext = baggage.baggageHeaderToDynamicSamplingContext(baggage$1);
+
+  const { traceId, parentSpanId, parentSampled } = traceparentData || {};
+
+  if (!traceparentData) {
+    return {
+      traceparentData,
+      dynamicSamplingContext: undefined,
+      propagationContext: {
+        traceId: traceId || misc.uuid4(),
+        spanId: misc.uuid4().substring(16),
+      },
+    };
+  } else {
+    return {
+      traceparentData,
+      dynamicSamplingContext: dynamicSamplingContext || {}, // If we have traceparent data but no DSC it means we are not head of trace and we must freeze it
+      propagationContext: {
+        traceId: traceId || misc.uuid4(),
+        parentSpanId: parentSpanId || misc.uuid4().substring(16),
+        spanId: misc.uuid4().substring(16),
+        sampled: parentSampled,
+        dsc: dynamicSamplingContext || {}, // If we have traceparent data but no DSC it means we are not head of trace and we must freeze it
+      },
+    };
+  }
+}
+
+/**
+ * Create a propagation context from incoming headers.
+ */
+function propagationContextFromHeaders(
+  sentryTrace,
+  baggage$1,
+) {
+  const traceparentData = extractTraceparentData(sentryTrace);
+  const dynamicSamplingContext = baggage.baggageHeaderToDynamicSamplingContext(baggage$1);
+
+  const { traceId, parentSpanId, parentSampled } = traceparentData || {};
+
+  if (!traceparentData) {
+    return {
+      traceId: traceId || misc.uuid4(),
+      spanId: misc.uuid4().substring(16),
+    };
+  } else {
+    return {
+      traceId: traceId || misc.uuid4(),
+      parentSpanId: parentSpanId || misc.uuid4().substring(16),
+      spanId: misc.uuid4().substring(16),
+      sampled: parentSampled,
+      dsc: dynamicSamplingContext || {}, // If we have traceparent data but no DSC it means we are not head of trace and we must freeze it
+    };
+  }
+}
+
+/**
+ * Create sentry-trace header from span context values.
+ */
+function generateSentryTraceHeader(
+  traceId = misc.uuid4(),
+  spanId = misc.uuid4().substring(16),
+  sampled,
+) {
+  let sampledString = '';
+  if (sampled !== undefined) {
+    sampledString = sampled ? '-1' : '-0';
+  }
+  return `${traceId}-${spanId}${sampledString}`;
+}
+
+exports.TRACEPARENT_REGEXP = TRACEPARENT_REGEXP;
+exports.extractTraceparentData = extractTraceparentData;
+exports.generateSentryTraceHeader = generateSentryTraceHeader;
+exports.propagationContextFromHeaders = propagationContextFromHeaders;
+exports.tracingContextFromHeaders = tracingContextFromHeaders;
+//# sourceMappingURL=tracing.js.map