Your message dated Fri, 13 May 2011 15:47:27 +0000
with message-id <[email protected]>
and subject line Bug#563443: fixed in python-pypdf 1.13-1
has caused the Debian Bug report #563443,
regarding python-pypdf: parsing not robust to whitespace
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
563443: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=563443
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: python-pypdf
Version: 1.12-2
Severity: normal
While using pdfshuffler on PDF statements from my stock broker, on export I'd
consistently get an exception from pypdf. Note that pdfshuffler's own display,
along with evince, acroread, kpdf, etc. have no problem with these documents.
On inspection it turns out that pypdf's parsing is rather primitive
and doesn't handle the presence of extra spaces, linefeeds in place of
space, etc. Here is an example of PDF source causing problems:
9 0 obj
<<
/Type /Font
/Subtype /Type1
/Encoding 4 0 R
/BaseFont /Times-Bold
>> endobj
I will attach a patch that makes parsing more lax about whitespace in a few
places that were significant to my document. However this is just the tip
of the iceburg. Unfortunatley the pypdf code is written in a rather low-level
fashion and addressing the problem fully will be a large task.
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.30-2-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages python-pypdf depends on:
ii python-support 1.0.6 automated rebuilding support for P
python-pypdf recommends no packages.
python-pypdf suggests no packages.
-- no debconf information
-- debsums errors found:
debsums: changed file /usr/share/python-support/python-pypdf/pyPdf/pdf.py (from
python-pypdf package)
debsums: changed file /usr/share/python-support/python-pypdf/pyPdf/generic.py
(from python-pypdf package)
# patch to pypdf to tolerate whitespace in cases like this
# (generated by Exstream Dialogue 6.1.015):
#
# 9 0 obj
# <<
# /Type /Font
# /Subtype /Type1
# /Encoding 4 0 R
# /BaseFont /Times-Bold
# >> endobj
diff -urb orig/generic.py new/generic.py
--- orig/generic.py 2009-12-29 23:09:18.556359182 -0500
+++ new/generic.py 2009-12-29 23:07:10.780361180 -0500
@@ -35,7 +35,7 @@
__author_email__ = "[email protected]"
import re
-from utils import readNonWhitespace, RC4_encrypt
+from utils import readNonWhitespace, readUntilWhitespace, RC4_encrypt
import filters
import utils
import decimal
@@ -81,7 +81,7 @@
return NumberObject.readFromStream(stream)
peek = stream.read(20)
stream.seek(-len(peek), 1) # reset to start
- if re.match(r"(\d+)\s(\d+)\sR[^a-zA-Z]", peek) != None:
+ if re.match(r"(\d+)\s+(\d+)\sR[^a-zA-Z]", peek) != None:
return IndirectObject.readFromStream(stream, pdf)
else:
return NumberObject.readFromStream(stream)
@@ -183,19 +183,10 @@
stream.write("%s %s R" % (self.idnum, self.generation))
def readFromStream(stream, pdf):
- idnum = ""
- while True:
- tok = stream.read(1)
- if tok.isspace():
- break
- idnum += tok
- generation = ""
- while True:
- tok = stream.read(1)
- if tok.isspace():
- break
- generation += tok
- r = stream.read(1)
+ idnum = readUntilWhitespace(stream)
+ readNonWhitespace(stream); stream.seek(-1, 1)
+ generation = readUntilWhitespace(stream)
+ r = readNonWhitespace(stream)
if r != "R":
raise utils.PdfReadError("error reading indirect object reference")
return IndirectObject(int(idnum), int(generation), pdf)
diff -urb orig/pdf.py new/pdf.py
--- orig/pdf.py 2009-12-29 23:09:17.632359905 -0500
+++ new/pdf.py 2009-12-29 23:11:00.444359823 -0500
@@ -586,10 +586,13 @@
# tables that are off by whitespace bytes.
readNonWhitespace(stream); stream.seek(-1, 1)
idnum = readUntilWhitespace(stream)
+ readNonWhitespace(stream); stream.seek(-1, 1)
generation = readUntilWhitespace(stream)
- obj = stream.read(3)
- readNonWhitespace(stream)
- stream.seek(-1, 1)
+ readNonWhitespace(stream); stream.seek(-1, 1)
+ obj_token = stream.read(3)
+ if obj_token != 'obj':
+ raise utils.PdfReadError("Error reading object header")
+ readNonWhitespace(stream); stream.seek(-1, 1)
return int(idnum), int(generation)
def cacheIndirectObject(self, generation, idnum, obj):
--- End Message ---
--- Begin Message ---
Source: python-pypdf
Source-Version: 1.13-1
We believe that the bug you reported is fixed in the latest version of
python-pypdf, which is due to be installed in the Debian FTP archive:
python-pypdf_1.13-1.diff.gz
to main/p/python-pypdf/python-pypdf_1.13-1.diff.gz
python-pypdf_1.13-1.dsc
to main/p/python-pypdf/python-pypdf_1.13-1.dsc
python-pypdf_1.13-1_all.deb
to main/p/python-pypdf/python-pypdf_1.13-1_all.deb
python-pypdf_1.13.orig.tar.gz
to main/p/python-pypdf/python-pypdf_1.13.orig.tar.gz
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Luciano Bello <[email protected]> (supplier of updated python-pypdf package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.8
Date: Fri, 13 May 2011 10:06:14 -0300
Source: python-pypdf
Binary: python-pypdf
Architecture: source all
Version: 1.13-1
Distribution: unstable
Urgency: low
Maintainer: Debian Python Modules Team
<[email protected]>
Changed-By: Luciano Bello <[email protected]>
Description:
python-pypdf - PDF toolkit implemented solely in Python
Closes: 563443 567312 593574 615961
Changes:
python-pypdf (1.13-1) unstable; urgency=low
.
* New upstream release (Closes: #615961).
- DeprecationWarning in the sets fixed (Closes: #593574)
* New Standards-Version.
* Typo in the README file fixed (Closes: #567312)
* Better extra spaces handling (Closes: #563443)
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Files:
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--- End Message ---
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