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Fix too lax application/json prefix-only matching #6180

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merged 9 commits into from
Nov 3, 2021
Merged

Fix too lax application/json prefix-only matching #6180

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5e3eb28
Add test case for too lax application/json prefix matching
scop Jul 18, 2021
203e3cf
Add test case for matching application/json with a charset
scop Oct 31, 2021
4a4dc9f
Fix too lax expected JSON content-type parsing
scop Oct 31, 2021
f435337
Use parametrized JSON expected content type tests
scop Nov 1, 2021
1956da8
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Nov 1, 2021
ab3de93
Rephrase CHANGES entry for #6180
scop Nov 1, 2021
1e26966
Check content type expectedness using parameterless, parsed source
scop Nov 2, 2021
7bc72c7
Update aiohttp/helpers.py
scop Nov 3, 2021
434c6c5
Update aiohttp/helpers.py
asvetlov Nov 3, 2021
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1 change: 1 addition & 0 deletions CHANGES/6180.bugfix
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix JSON media type matching to not accept everything starting with application/json.
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4 changes: 3 additions & 1 deletion aiohttp/helpers.py
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Expand Up @@ -124,7 +124,9 @@ def iscoroutinefunction(func: Any) -> bool:
return asyncio.iscoroutinefunction(func)


json_re = re.compile(r"(?:application/|[\w.-]+/[\w.+-]+?\+)json", re.IGNORECASE)
json_re = re.compile(
r"(?:application/|[\w.-]+/[\w.+-]+?\+)json(?:\s*;.*)?$", re.IGNORECASE
)


class BasicAuth(namedtuple("BasicAuth", ["login", "password", "encoding"])):
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16 changes: 16 additions & 0 deletions tests/test_helpers.py
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Expand Up @@ -789,6 +789,22 @@ def test_is_expected_content_type_json_non_lowercase():
)


def test_is_expected_content_type_json_with_charset():
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expected_ct = "application/json"
response_ct = "application/json; charset=UTF-8"
assert is_expected_content_type(
response_content_type=response_ct, expected_content_type=expected_ct
)


def test_is_expected_content_type_json_match_not_just_prefix():
expected_ct = "application/json"
response_ct = "application/json-seq"
assert not is_expected_content_type(
response_content_type=response_ct, expected_content_type=expected_ct
)
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def test_is_expected_content_type_non_json_match_exact():
expected_ct = "text/javascript"
response_ct = "text/javascript"
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