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Merge pull request #1 from radarhere/check-image-has-fp-when-close

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Do not assign new fp attribute to image when closing
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Raphael Rossi 2023-11-17 08:46:20 -03:00 committed by GitHub
commit 8186c63d40
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2 changed files with 11 additions and 16 deletions
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17
Tests/test_image.py
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@ -1,4 +1,5 @@
import io import io
import logging
import os import os
import shutil import shutil
import sys import sys
@ -1014,20 +1015,14 @@ class TestImage:
except OSError as e: except OSError as e:
assert str(e) == "buffer overrun when reading image file" assert str(e) == "buffer overrun when reading image file"
@pytest.fixture(scope="function") def test_close_graceful(self, caplog):
def inject_caplog(self, caplog):
self._caplog = caplog
@pytest.mark.usefixtures("inject_caplog")
def test_close_graceful(self):
with Image.open("Tests/images/hopper.jpg") as im: with Image.open("Tests/images/hopper.jpg") as im:
copy = im.copy() copy = im.copy()
im.close() with caplog.at_level(logging.DEBUG):
copy.close() im.close()
copy.close()
assert len(self._caplog.records) == 0 assert len(caplog.records) == 0
assert im.fp is None assert im.fp is None
assert copy.fp is None
class MockEncoder: class MockEncoder:

10
src/PIL/Image.py
View File

@ -549,17 +549,17 @@ class Image:
:py:meth:`~PIL.Image.Image.load` method. See :ref:`file-handling` for :py:meth:`~PIL.Image.Image.load` method. See :ref:`file-handling` for
more information. more information.
""" """
try: if hasattr(self, "fp"):
if hasattr(self, "fp"): try:
if getattr(self, "_fp", False): if getattr(self, "_fp", False):
if self._fp != self.fp: if self._fp != self.fp:
self._fp.close() self._fp.close()
self._fp = DeferredError(ValueError("Operation on closed image")) self._fp = DeferredError(ValueError("Operation on closed image"))
if self.fp: if self.fp:
self.fp.close() self.fp.close()
self.fp = None self.fp = None
except Exception as msg: except Exception as msg:
logger.debug("Error closing: %s", msg) logger.debug("Error closing: %s", msg)
if getattr(self, "map", None): if getattr(self, "map", None):
self.map = None self.map = None