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fix(otel): Use HTTP_URL attribute for client requests (#8539)
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Turns out, `HTTP_TARGET` is always the relative path, even for outgoing
requests, which omits the host. So we handle this specifically now here.

While at it (and as I'm working a bit in this codebase), I also renamed
the files from kebap-case to camelCase, to align with the rest of the
codebase better - unless there was a specific reason to use that here
@AbhiPrasad ?

Closes #8535
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mydea authored Jul 17, 2023
1 parent 459c5d2 commit 2919511
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Showing 6 changed files with 279 additions and 15 deletions.
26 changes: 21 additions & 5 deletions packages/opentelemetry-node/src/spanprocessor.ts
Original file line number Diff line number Diff line change
Expand Up @@ -7,9 +7,9 @@ import type { DynamicSamplingContext, Span as SentrySpan, TraceparentData, Trans
import { isString, logger } from '@sentry/utils';

import { SENTRY_DYNAMIC_SAMPLING_CONTEXT_KEY, SENTRY_TRACE_PARENT_CONTEXT_KEY } from './constants';
import { isSentryRequestSpan } from './utils/is-sentry-request';
import { mapOtelStatus } from './utils/map-otel-status';
import { parseSpanDescription } from './utils/parse-otel-span-description';
import { isSentryRequestSpan } from './utils/isSentryRequest';
import { mapOtelStatus } from './utils/mapOtelStatus';
import { parseSpanDescription } from './utils/parseOtelSpanDescription';

export const SENTRY_SPAN_PROCESSOR_MAP: Map<SentrySpan['spanId'], SentrySpan> = new Map<
SentrySpan['spanId'],
Expand Down Expand Up @@ -207,6 +207,8 @@ function getTraceData(otelSpan: OtelSpan, parentContext: Context): Partial<Trans
function updateSpanWithOtelData(sentrySpan: SentrySpan, otelSpan: OtelSpan): void {
const { attributes, kind } = otelSpan;

const { op, description, data } = parseSpanDescription(otelSpan);

sentrySpan.setStatus(mapOtelStatus(otelSpan));
sentrySpan.setData('otel.kind', SpanKind[kind]);

Expand All @@ -215,20 +217,34 @@ function updateSpanWithOtelData(sentrySpan: SentrySpan, otelSpan: OtelSpan): voi
sentrySpan.setData(prop, value);
});

const { op, description } = parseSpanDescription(otelSpan);
if (data) {
Object.keys(data).forEach(prop => {
const value = data[prop];
sentrySpan.setData(prop, value);
});
}

sentrySpan.op = op;
sentrySpan.description = description;
}

function updateTransactionWithOtelData(transaction: Transaction, otelSpan: OtelSpan): void {
const { op, description, source, data } = parseSpanDescription(otelSpan);

transaction.setContext('otel', {
attributes: otelSpan.attributes,
resource: otelSpan.resource.attributes,
});

if (data) {
Object.keys(data).forEach(prop => {
const value = data[prop];
transaction.setData(prop, value);
});
}

transaction.setStatus(mapOtelStatus(otelSpan));

const { op, description, source } = parseSpanDescription(otelSpan);
transaction.op = op;
transaction.setName(description, source);
}
Expand Down
Original file line number Diff line number Diff line change
@@ -1,13 +1,15 @@
import type { AttributeValue } from '@opentelemetry/api';
import type { Attributes, AttributeValue } from '@opentelemetry/api';
import { SpanKind } from '@opentelemetry/api';
import type { Span as OtelSpan } from '@opentelemetry/sdk-trace-base';
import { SemanticAttributes } from '@opentelemetry/semantic-conventions';
import type { TransactionSource } from '@sentry/types';
import { getSanitizedUrlString, parseUrl, stripUrlQueryAndFragment } from '@sentry/utils';

interface SpanDescription {
op: string | undefined;
description: string;
source: TransactionSource;
data?: Record<string, string>;
}

/**
Expand Down Expand Up @@ -87,21 +89,77 @@ function descriptionForHttpMethod(otelSpan: OtelSpan, httpMethod: AttributeValue
break;
}

const httpTarget = attributes[SemanticAttributes.HTTP_TARGET];
const httpRoute = attributes[SemanticAttributes.HTTP_ROUTE];
const { urlPath, url, query, fragment } = getSanitizedUrl(attributes, kind);

// Ex. /api/users
const httpPath = httpRoute || httpTarget;

if (!httpPath) {
if (!urlPath) {
return { op: opParts.join('.'), description: name, source: 'custom' };
}

// Ex. description="GET /api/users".
const description = `${httpMethod} ${httpPath}`;
const description = `${httpMethod} ${urlPath}`;

// If `httpPath` is a root path, then we can categorize the transaction source as route.
const source: TransactionSource = httpRoute || httpPath === '/' ? 'route' : 'url';
const source: TransactionSource = httpRoute || urlPath === '/' ? 'route' : 'url';

const data: Record<string, string> = {};

if (url) {
data.url = url;
}
if (query) {
data['http.query'] = query;
}
if (fragment) {
data['http.fragment'] = fragment;
}

return {
op: opParts.join('.'),
description,
source,
data,
};
}

/** Exported for tests only */
export function getSanitizedUrl(
attributes: Attributes,
kind: SpanKind,
): {
url: string | undefined;
urlPath: string | undefined;
query: string | undefined;
fragment: string | undefined;
} {
// This is the relative path of the URL, e.g. /sub
const httpTarget = attributes[SemanticAttributes.HTTP_TARGET];
// This is the full URL, including host & query params etc., e.g. https://example.com/sub?foo=bar
const httpUrl = attributes[SemanticAttributes.HTTP_URL];
// This is the normalized route name - may not always be available!
const httpRoute = attributes[SemanticAttributes.HTTP_ROUTE];

const parsedUrl = typeof httpUrl === 'string' ? parseUrl(httpUrl) : undefined;
const url = parsedUrl ? getSanitizedUrlString(parsedUrl) : undefined;
const query = parsedUrl && parsedUrl.search ? parsedUrl.search : undefined;
const fragment = parsedUrl && parsedUrl.hash ? parsedUrl.hash : undefined;

if (typeof httpRoute === 'string') {
return { urlPath: httpRoute, url, query, fragment };
}

if (kind === SpanKind.SERVER && typeof httpTarget === 'string') {
return { urlPath: stripUrlQueryAndFragment(httpTarget), url, query, fragment };
}

if (parsedUrl) {
return { urlPath: url, url, query, fragment };
}

// fall back to target even for client spans, if no URL is present
if (typeof httpTarget === 'string') {
return { urlPath: stripUrlQueryAndFragment(httpTarget), url, query, fragment };
}

return { op: opParts.join('.'), description, source };
return { urlPath: undefined, url, query, fragment };
}
48 changes: 47 additions & 1 deletion packages/opentelemetry-node/test/spanprocessor.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -434,10 +434,19 @@ describe('SentrySpanProcessor', () => {
child.setAttribute(SemanticAttributes.HTTP_METHOD, 'GET');
child.setAttribute(SemanticAttributes.HTTP_ROUTE, '/my/route/{id}');
child.setAttribute(SemanticAttributes.HTTP_TARGET, '/my/route/123');
child.setAttribute(SemanticAttributes.HTTP_URL, 'http://example.com/my/route/123');

child.end();

expect(sentrySpan?.description).toBe('GET /my/route/{id}');
expect(sentrySpan?.data).toEqual({
'http.method': 'GET',
'http.route': '/my/route/{id}',
'http.target': '/my/route/123',
'http.url': 'http://example.com/my/route/123',
'otel.kind': 'INTERNAL',
url: 'http://example.com/my/route/123',
});

parentOtelSpan.end();
});
Expand All @@ -453,10 +462,47 @@ describe('SentrySpanProcessor', () => {

child.setAttribute(SemanticAttributes.HTTP_METHOD, 'GET');
child.setAttribute(SemanticAttributes.HTTP_TARGET, '/my/route/123');
child.setAttribute(SemanticAttributes.HTTP_URL, 'http://example.com/my/route/123');

child.end();

expect(sentrySpan?.description).toBe('GET /my/route/123');
expect(sentrySpan?.description).toBe('GET http://example.com/my/route/123');
expect(sentrySpan?.data).toEqual({
'http.method': 'GET',
'http.target': '/my/route/123',
'http.url': 'http://example.com/my/route/123',
'otel.kind': 'INTERNAL',
url: 'http://example.com/my/route/123',
});

parentOtelSpan.end();
});
});
});

it('Adds query & hash data based on HTTP_URL', async () => {
const tracer = provider.getTracer('default');

tracer.startActiveSpan('GET /users', parentOtelSpan => {
tracer.startActiveSpan('HTTP GET', child => {
const sentrySpan = getSpanForOtelSpan(child);

child.setAttribute(SemanticAttributes.HTTP_METHOD, 'GET');
child.setAttribute(SemanticAttributes.HTTP_TARGET, '/my/route/123');
child.setAttribute(SemanticAttributes.HTTP_URL, 'http://example.com/my/route/123?what=123#myHash');

child.end();

expect(sentrySpan?.description).toBe('GET http://example.com/my/route/123');
expect(sentrySpan?.data).toEqual({
'http.method': 'GET',
'http.target': '/my/route/123',
'http.url': 'http://example.com/my/route/123?what=123#myHash',
'otel.kind': 'INTERNAL',
url: 'http://example.com/my/route/123',
'http.query': '?what=123',
'http.fragment': '#myHash',
});

parentOtelSpan.end();
});
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,144 @@
import { SpanKind } from '@opentelemetry/api';
import { SemanticAttributes } from '@opentelemetry/semantic-conventions';

import { getSanitizedUrl } from '../../src/utils/parseOtelSpanDescription';

describe('getSanitizedUrl', () => {
it.each([
[
'works without attributes',
{},
SpanKind.CLIENT,
{
urlPath: undefined,
url: undefined,
fragment: undefined,
query: undefined,
},
],
[
'uses url without query for client request',
{
[SemanticAttributes.HTTP_URL]: 'http://example.com/?what=true',
[SemanticAttributes.HTTP_METHOD]: 'GET',
[SemanticAttributes.HTTP_TARGET]: '/?what=true',
[SemanticAttributes.HTTP_HOST]: 'example.com:80',
[SemanticAttributes.HTTP_STATUS_CODE]: 200,
},
SpanKind.CLIENT,
{
urlPath: 'http://example.com/',
url: 'http://example.com/',
fragment: undefined,
query: '?what=true',
},
],
[
'uses url without hash for client request',
{
[SemanticAttributes.HTTP_URL]: 'http://example.com/sub#hash',
[SemanticAttributes.HTTP_METHOD]: 'GET',
[SemanticAttributes.HTTP_TARGET]: '/sub#hash',
[SemanticAttributes.HTTP_HOST]: 'example.com:80',
[SemanticAttributes.HTTP_STATUS_CODE]: 200,
},
SpanKind.CLIENT,
{
urlPath: 'http://example.com/sub',
url: 'http://example.com/sub',
fragment: '#hash',
query: undefined,
},
],
[
'uses route if available for client request',
{
[SemanticAttributes.HTTP_URL]: 'http://example.com/?what=true',
[SemanticAttributes.HTTP_METHOD]: 'GET',
[SemanticAttributes.HTTP_TARGET]: '/?what=true',
[SemanticAttributes.HTTP_ROUTE]: '/my-route',
[SemanticAttributes.HTTP_HOST]: 'example.com:80',
[SemanticAttributes.HTTP_STATUS_CODE]: 200,
},
SpanKind.CLIENT,
{
urlPath: '/my-route',
url: 'http://example.com/',
fragment: undefined,
query: '?what=true',
},
],
[
'falls back to target for client request if url not available',
{
[SemanticAttributes.HTTP_METHOD]: 'GET',
[SemanticAttributes.HTTP_TARGET]: '/?what=true',
[SemanticAttributes.HTTP_HOST]: 'example.com:80',
[SemanticAttributes.HTTP_STATUS_CODE]: 200,
},
SpanKind.CLIENT,
{
urlPath: '/',
url: undefined,
fragment: undefined,
query: undefined,
},
],
[
'uses target without query for server request',
{
[SemanticAttributes.HTTP_URL]: 'http://example.com/?what=true',
[SemanticAttributes.HTTP_METHOD]: 'GET',
[SemanticAttributes.HTTP_TARGET]: '/?what=true',
[SemanticAttributes.HTTP_HOST]: 'example.com:80',
[SemanticAttributes.HTTP_STATUS_CODE]: 200,
},
SpanKind.SERVER,
{
urlPath: '/',
url: 'http://example.com/',
fragment: undefined,
query: '?what=true',
},
],
[
'uses target without hash for server request',
{
[SemanticAttributes.HTTP_URL]: 'http://example.com/?what=true',
[SemanticAttributes.HTTP_METHOD]: 'GET',
[SemanticAttributes.HTTP_TARGET]: '/sub#hash',
[SemanticAttributes.HTTP_HOST]: 'example.com:80',
[SemanticAttributes.HTTP_STATUS_CODE]: 200,
},
SpanKind.SERVER,
{
urlPath: '/sub',
url: 'http://example.com/',
fragment: undefined,
query: '?what=true',
},
],
[
'uses route for server request if available',
{
[SemanticAttributes.HTTP_URL]: 'http://example.com/?what=true',
[SemanticAttributes.HTTP_METHOD]: 'GET',
[SemanticAttributes.HTTP_TARGET]: '/?what=true',
[SemanticAttributes.HTTP_ROUTE]: '/my-route',
[SemanticAttributes.HTTP_HOST]: 'example.com:80',
[SemanticAttributes.HTTP_STATUS_CODE]: 200,
},
SpanKind.SERVER,
{
urlPath: '/my-route',
url: 'http://example.com/',
fragment: undefined,
query: '?what=true',
},
],
])('%s', (_, attributes, kind, expected) => {
const actual = getSanitizedUrl(attributes, kind);

expect(actual).toEqual(expected);
});
});

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