[android] Capture network request/response details when using SentryOkHttpListener

[43jay]

📜 Description

Widely enable network details capture (request/response bodies and headers - docs) by adding support to SentryOkHttpEventListener.

Updates CHANGELOG.

💡 Motivation and Context

Part of [Mobile Replay] Capture Network request/response bodies.

Network Details extraction depends on okhttp3.Interceptor (SentryOkHttpInterceptor) to intercept http requests and extract the relevant data to the Breadcrumb Hint.

However, SentryOkHttpInterceptor is only responsible for sending Breadcrumb data when the okhttp client doesn't use Sentry's SentryOkHttpEventListener (see #4796).

Given registering SentryOkHttpEventListener is the default gradle plugin behavior, this implementation has limited value. So this PR modifies SentryOkHttpInterceptor to pass network details data to the corresponding SentryOkHttpEvent to be captured when sending the Breadcrumb from that path.

💚 How did you test it?

Manual testing.

📝 Checklist

• I added GH Issue ID & Linear ID

• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled. N/A

• No breaking change or entry added to the changelog. see CHANGELOG.md in this PR

• No breaking change for hybrid SDKs or communicated to hybrid SDKs. No sentry.api changes here

• Review from the native team if needed. No native changes

• I added tests to verify the changes.

• Confirm that the gradle plugin always registers SentryOkHttpInterceptor

🔮 Next steps

• I updated the docs if needed. Need docs PR
• I updated the wizard if needed. Need wizard update PR

[linear]

MOBILE-935 [Mobile Replay] Capture Network request/response bodies

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

### Features

- [android] Capture network request/response details when using SentryOkHttpListener ([#4919](https://github.com/getsentry/sentry-java/pull/4919))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description or adding a skip-changelog label.

Generated by 🚫 dangerJS against 22bb832

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	308.61 ms	367.50 ms	58.89 ms
Size	1.58 MiB	2.13 MiB	557.32 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
ee747ae	357.79 ms	421.84 ms	64.05 ms
ae7fed0	293.84 ms	380.22 ms	86.38 ms
9fbb112	404.51 ms	475.65 ms	71.14 ms
27d7cf8	397.90 ms	498.65 ms	100.75 ms
a416a65	333.78 ms	410.37 ms	76.59 ms
d217708	411.22 ms	430.86 ms	19.63 ms
539ca63	313.51 ms	355.43 ms	41.92 ms
23d6b12	354.10 ms	408.38 ms	54.28 ms
14ff5ee	419.75 ms	495.73 ms	75.98 ms
ce0a49e	532.00 ms	609.96 ms	77.96 ms

App size

Revision	Plain	With Sentry	Diff
ee747ae	1.58 MiB	2.10 MiB	530.95 KiB
ae7fed0	1.58 MiB	2.12 MiB	551.77 KiB
9fbb112	1.58 MiB	2.11 MiB	539.18 KiB
27d7cf8	1.58 MiB	2.12 MiB	549.42 KiB
a416a65	1.58 MiB	2.12 MiB	555.26 KiB
d217708	1.58 MiB	2.10 MiB	532.97 KiB
539ca63	1.58 MiB	2.12 MiB	551.41 KiB
23d6b12	1.58 MiB	2.10 MiB	532.31 KiB
14ff5ee	1.58 MiB	2.10 MiB	535.08 KiB
ce0a49e	1.58 MiB	2.10 MiB	532.94 KiB

Previous results on branch: 43jay/MOBILE-935

Startup times

Revision	Plain	With Sentry	Diff
6687052	321.98 ms	383.35 ms	61.38 ms
1c4ba0c	302.22 ms	367.21 ms	64.98 ms
fedc731	325.81 ms	383.02 ms	57.21 ms
da92356	319.12 ms	388.73 ms	69.61 ms
154fb27	336.98 ms	387.10 ms	50.12 ms
1a07f53	341.15 ms	378.86 ms	37.71 ms
790a163	339.64 ms	436.57 ms	96.94 ms

App size

Revision	Plain	With Sentry	Diff
6687052	1.58 MiB	2.13 MiB	556.25 KiB
1c4ba0c	1.58 MiB	2.13 MiB	556.34 KiB
fedc731	1.58 MiB	2.13 MiB	557.33 KiB
da92356	1.58 MiB	2.13 MiB	556.24 KiB
154fb27	1.58 MiB	2.13 MiB	557.32 KiB
1a07f53	1.58 MiB	2.12 MiB	553.02 KiB
790a163	1.58 MiB	2.12 MiB	553.01 KiB

[cursor]

Bug: Duplicate HTTP headers lost in conversion

The toMap() function loses duplicate HTTP headers with the same name. When iterating through OkHttp headers and inserting into a Map<String, String>, duplicate header names get overwritten, keeping only the last value. This causes data loss for headers like Set-Cookie, Accept, or Vary that commonly appear multiple times in HTTP messages. The captured network details will be incomplete when responses or requests contain duplicate headers.

sentry-okhttp/src/main/java/io/sentry/okhttp/SentryOkHttpInterceptor.kt#L265-L272

sentry-java/sentry-okhttp/src/main/java/io/sentry/okhttp/SentryOkHttpInterceptor.kt

Lines 265 to 272 in 22bb832

	/** Extracts headers from OkHttp Headers object into a map */
	private fun okhttp3.Headers.toMap(): Map<String, String> {
	val headers = linkedMapOf<String, String>()
	for (i in 0 until size) {
	headers[name(i)] = value(i)
	}
	return headers
	}

 

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