New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Crash on Tapatalk launch #7

Closed
kvic-z opened this Issue Dec 8, 2017 · 2 comments

Comments

Projects
None yet
1 participant
@kvic-z
Copy link
Owner

kvic-z commented Dec 8, 2017

Client

Tapatalk Android client.

Symptom

On launch, Tapatalk sends a big chunk ~16KB of data using POST. Captured request looks like below. pixelserv-tls v2.0.1-rc2 crashes.

POST /v2.9/469687153111700/activities?access_token=&format=json&sdk=android HTTP/1.1
User-Agent: FBAndroidSDK.4.23.0
Accept-Language: es_ES
Content-Type: multipart/form-data; boundary=3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f
Transfer-Encoding: chunked
Host: graph.facebook.com
Connection: Keep-Alive
Accept-Encoding: gzip

7056
--3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f
Content-Disposition: form-data; name="format"

json
--3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f
Content-Disposition: form-data; name="sdk"

android
--3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f
Content-Disposition: form-data; name="custom_events_file"; filename="custom_events_file"
Content-Type: content/unknown

[{"_eventName":"Start_Session","_logTime":1512749547,"_ui":"null","_session_id":"5d35bdf4-4862-492e-b8fc-f80c574721c2","Channel":"Push_Conv"},{"_eventName":"fb_mobile_activate_app","_logTime":1512749256,"_ui":"CreateMessageActivity","_session_id":"5d35bdf4-4862-492e-b8fc-f80c574721c2","fb_mobile_launch_source":"Unclassified"},
@kvic-z

This comment has been minimized.

Copy link
Owner Author

kvic-z commented Dec 8, 2017

Analysis

Tapatalk uses multi-part POST to upload contents to pixelserv-tls (i.e. ad servers) with Transport-Encoding: chunked. pixelserv-tls cannot parse this mechanism and hence crashes.

@kvic-z

This comment has been minimized.

Copy link
Owner Author

kvic-z commented Dec 11, 2017

Fixed crash with 0063f766

Full support of Transport-Encoding: chunked need more work and has to wait in a future release.

@kvic-z kvic-z closed this Dec 11, 2017

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment