[issue3169] email/header.py doesn't handle Base64 headers that have been insufficiently padded.

2008-06-21 Thread Jason Williams 

New submission from Jason Williams <[EMAIL PROTECTED]>:

email/header.py:decode_header() Line 95: dec = 
email.base64mime.decode(encoded)

Headers that contain Subject or From headers which are Base64 encoded 
and are insufficiently padded raise a HeaderParseError. The actual 
padding error is begin generated in binascii.a2b_base64 and bubbling up 
as a HeaderParseError in header.py. 

decode_header() should detect the padding error (Base64 text length does 
not evenly divide by 3) and automatically add padding before handing off 
to a2b_base64. The problem usually occurs with spam.

Example problem header:
Subject: =?iso-8859-1?B?
UHJldmVudCBGb3JlY2xvc3VyZSAmIFNhdmUgWW91ciBIb21lIA=?=


Properly Padded:
Subject: =?iso-8859-1?B?
UHJldmVudCBGb3JlY2xvc3VyZSAmIFNhdmUgWW91ciBIb21lIA==?=

--
components: Library (Lib)
messages: 68553
nosy: jasonjwwilliams
severity: normal
status: open
title: email/header.py doesn't handle Base64 headers that have been 
insufficiently padded.
type: behavior
versions: Python 2.5

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[issue17681] Work with an extra field of gzip and zip files

2020-04-02 Thread Jason Williams 


Jason Williams  added the comment:

What's needed to get this integrated?  It will be great to not have to fork the 
GZIP.

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nosy: +Jason Williams

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[issue42983] sys.argv incorrectly parses command lines with args in environment variables.

2021-01-20 Thread Jason Williams 


New submission from Jason Williams :

Passing arguments to a Python script using an environment variable like:

export en_auth="--arg1 test --arg2 \"$(https://bugs.python.org/file49753/test.py

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[issue42983] sys.argv incorrectly parses command lines with args in environment variables.

2021-01-20 Thread Jason Williams 


Change by Jason Williams :


--
components: +Library (Lib)
type:  -> behavior

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[issue42983] sys.argv incorrectly parses command lines with args in environment variables.

2021-01-20 Thread Jason Williams 


Change by Jason Williams :


Added file: https://bugs.python.org/file49754/private_key.pem

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[issue3169] email/header.py doesn't handle Base64 headers that have been insufficiently padded.

2010-08-03 Thread Jason Williams 

Jason Williams  added the comment:

I'd argue that since the recipient has little control over incorrect header 
padding, the traditional approach with e-mail is to fix-up bad encoding...and 
this ia bug.

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