[Python-checkins] cpython: Issue #14455: fix handling of unsigned long long values for binary plist files
ronald.oussoren
python-checkins at python.org
Thu Feb 6 11:19:37 CET 2014
http://hg.python.org/cpython/rev/0121c2b7dcce
changeset: 88991:0121c2b7dcce
user: Ronald Oussoren <ronaldoussoren at mac.com>
date: Thu Feb 06 11:19:18 2014 +0100
summary:
Issue #14455: fix handling of unsigned long long values for binary plist files
Values in the range of an unsigned long long, but outside of the range
of a signed long long were serialized as a negative value.
Due to a bug in PyObjC my test scripts indicated that the previous behavior
matched Apple's plist code, instead the handle large unsigned values correctly.
The change to plistlib.py is from a patch by Serhiy.
files:
Doc/library/plistlib.rst | 7 -
Lib/plistlib.py | 11 +-
Lib/test/test_plistlib.py | 132 ++++++-----
Mac/Tools/plistlib_generate_testdata.py | 3 +-
Misc/NEWS | 4 +
5 files changed, 79 insertions(+), 78 deletions(-)
diff --git a/Doc/library/plistlib.rst b/Doc/library/plistlib.rst
--- a/Doc/library/plistlib.rst
+++ b/Doc/library/plistlib.rst
@@ -107,13 +107,6 @@
An :exc:`OverflowError` will be raised for integer values that cannot
be represented in (binary) plist files.
- .. warning::
-
- For compatibility with Apple's libraries it is possible to write
- an integer in the range from 2 ** 63 upto (and including) 2 ** 64
- to binary plists, even though these will be read back as negative
- values.
-
.. versionadded: 3.4
diff --git a/Lib/plistlib.py b/Lib/plistlib.py
--- a/Lib/plistlib.py
+++ b/Lib/plistlib.py
@@ -879,18 +879,19 @@
try:
self._fp.write(struct.pack('>Bq', 0x13, value))
except struct.error:
- raise OverflowError(value)
+ raise OverflowError(value) from None
elif value < 1 << 8:
self._fp.write(struct.pack('>BB', 0x10, value))
elif value < 1 << 16:
self._fp.write(struct.pack('>BH', 0x11, value))
elif value < 1 << 32:
self._fp.write(struct.pack('>BL', 0x12, value))
+ elif value < 1 << 63:
+ self._fp.write(struct.pack('>BQ', 0x13, value))
+ elif value < 1 << 64:
+ self._fp.write(b'\x14' + value.to_bytes(16, 'big', signed=True))
else:
- try:
- self._fp.write(struct.pack('>BQ', 0x13, value))
- except struct.error:
- raise OverflowError(value)
+ raise OverflowError(value)
elif isinstance(value, float):
self._fp.write(struct.pack('>Bd', 0x23, value))
diff --git a/Lib/test/test_plistlib.py b/Lib/test/test_plistlib.py
--- a/Lib/test/test_plistlib.py
+++ b/Lib/test/test_plistlib.py
@@ -22,72 +22,73 @@
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plistlib.FMT_BINARY: binascii.a2b_base64(b'''
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- AAAAAAAC0A=='''),
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}
@@ -106,6 +107,7 @@
aFloat = 0.5,
anInt = 728,
aBigInt = 2 ** 63 - 44,
+ aBigInt2 = 2 ** 63 + 44,
aNegativeInt = -5,
aNegativeBigInt = -80000000000,
aDict=dict(
@@ -152,7 +154,7 @@
def test_int(self):
for pl in [0, 2**8-1, 2**8, 2**16-1, 2**16, 2**32-1, 2**32,
- 2**63-1, 1, -2**63]:
+ 2**63-1, 2**64-1, 1, -2**63]:
for fmt in ALL_FORMATS:
with self.subTest(pl=pl, fmt=fmt):
data = plistlib.dumps(pl, fmt=fmt)
diff --git a/Mac/Tools/plistlib_generate_testdata.py b/Mac/Tools/plistlib_generate_testdata.py
--- a/Mac/Tools/plistlib_generate_testdata.py
+++ b/Mac/Tools/plistlib_generate_testdata.py
@@ -1,6 +1,6 @@
#!/usr/bin/env python3
-from Cocoa import NSMutableDictionary, NSMutableArray, NSString, NSDate
+from Cocoa import NSMutableDictionary, NSMutableArray, NSString, NSDate, NSNumber
from Cocoa import NSPropertyListSerialization, NSPropertyListOpenStepFormat
from Cocoa import NSPropertyListXMLFormat_v1_0, NSPropertyListBinaryFormat_v1_0
from Cocoa import CFUUIDCreateFromString, NSNull, NSUUID, CFPropertyListCreateData
@@ -30,6 +30,7 @@
seconds = datetime.datetime(2004, 10, 26, 10, 33, 33, tzinfo=datetime.timezone(datetime.timedelta(0))).timestamp()
pl[nsstr('aBigInt')] = 2 ** 63 - 44
+ pl[nsstr('aBigInt2')] = NSNumber.numberWithUnsignedLongLong_(2 ** 63 + 44)
pl[nsstr('aDate')] = NSDate.dateWithTimeIntervalSince1970_(seconds)
pl[nsstr('aDict')] = d = OrderedDict()
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -109,6 +109,10 @@
- Issue #15304: concurrent.futures.wait() can block forever even if
Futures have completed. Patch by Glenn Langford.
+- Issue #14455: plistlib: fix serializing integers integers in the range
+ of an unsigned long long but outside of the range of signed long long for
+ binary plist files.
+
IDLE
----
--
Repository URL: http://hg.python.org/cpython
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