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authorXavier Morel <xmo@odoo.com>2020-10-14 13:04:53 +0000
committerXavier Morel <xmo@odoo.com>2020-10-14 13:35:36 +0000
commit6b04dbcd4204a75d6bd68fc0b3010a2297779b32 (patch)
tree7c5f61f811ff4d4ef83b087e9919a93db846dca5
parent12030dde4fcc63b6bcb037084c21c24b23a91ff4 (diff)
[FIX] core: PyPDF2 suppresses warnings
By default, PdfFileReader will monkeypatch the `warnings` module even if it has no reason whatsoever to do so and suppress the `captureWarnings` behavior. This means as soon as we've loaded a PDF file, `warnings.warn` don't trigger `logging` warnings anymore, and become invisible. This can lead to non-deterministic behaviors depending as warnings may or may not be suppressed depending when they occur relative to loading a PDF e.g. load a module which runs a test which loads a PDF before a module triggering a warning and the warning won't be visible, other way around it will. Except ofc while we have an override to PdfFileReader it's not used *everywhere*, so need to monkeypatch the init. closes odoo/odoo#60002 Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>
-rw-r--r--odoo/tools/pdf.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/odoo/tools/pdf.py b/odoo/tools/pdf.py
index dadae1df522..66608c4b1ff 100644
--- a/odoo/tools/pdf.py
+++ b/odoo/tools/pdf.py
@@ -67,6 +67,12 @@ def rotate_pdf(pdf):
writer.write(_buffer)
return _buffer.getvalue()
+# by default PdfFileReader will overwrite warnings.showwarning which is what
+# logging.captureWarnings does, meaning it essentially reverts captureWarnings
+# every time it's called which is undesirable
+old_init = PdfFileReader.__init__
+PdfFileReader.__init__ = lambda self, stream, strict=True, warndest=None, overwriteWarnings=True: \
+ old_init(self, stream=stream, strict=strict, warndest=None, overwriteWarnings=False)
class OdooPdfFileReader(PdfFileReader):
# OVERRIDE of PdfFileReader to add the management of multiple embedded files.