zlib.error: Error -3 while decompressing data: incorrect header check

[Benjamin-beep]

Hi, i am having a problem, maybe someone knows how to fix this:

Process FindObjectsWorker-28:
Traceback (most recent call last):
File "/usr/lib/python3.6/multiprocessing/process.py", line 258, in _bootstrap
self.run()
File "git-dumper.py", line 108, in run
result = self.do_task(task, *self.args)
File "git-dumper.py", line 285, in do_task
obj_file = dulwich.objects.ShaFile.from_path(abspath)
File "/usr/local/lib/python3.6/dist-packages/dulwich/objects.py", line 401, in from_path
return cls.from_file(f)
File "/usr/local/lib/python3.6/dist-packages/dulwich/objects.py", line 407, in from_file
obj = cls._parse_file(f)
File "/usr/local/lib/python3.6/dist-packages/dulwich/objects.py", line 382, in _parse_file
obj._parse_object(map)
File "/usr/local/lib/python3.6/dist-packages/dulwich/objects.py", line 362, in _parse_object
self.set_raw_string(_decompress(raw))
File "/usr/local/lib/python3.6/dist-packages/dulwich/objects.py", line 84, in _decompress
dcomped = dcomp.decompress(string)
zlib.error: Error -3 while decompressing data: incorrect header check

[arthaud]

Hi @Benjamin-beep,

Do you still have the issue?
Could you provide us a way to reproduce it?

[evilboyajay]

I got the same error at
dcomped = dcomp.decompress(string)

[vzamanillo]

This can be caused by a response with status code 200 but with not a binary content like a WAF HTML response or another (stackpath, cloudflare).

[Sicks3c]

@vzamanillo anyway around this ?

[vzamanillo]

@vzamanillo anyway around this ?

No way :/, the one and only solution is passing the headers to request.

[DashLt]

This is caused by sites returning error pages (e.g. not found) with a 200 status code (incorrect, but it happens a lot). #13 closes this, since it now also checks to see whether the Content-Type is HTML.

[arthaud]

This should be fixed by 7da1861