Mercurial > kallithea
annotate rhodecode/lib/ext_json.py @ 4116:ffd45b185016 rhodecode-2.2.5-gpl
Imported some of the GPLv3'd changes from RhodeCode v2.2.5.
This imports changes between changesets 21af6c4eab3d and 6177597791c2 in
RhodeCode's original repository, including only changes to Python files and HTML.
RhodeCode clearly licensed its changes to these files under GPLv3
in their /LICENSE file, which states the following:
The Python code and integrated HTML are licensed under the GPLv3 license.
(See:
https://code.rhodecode.com/rhodecode/files/v2.2.5/LICENSE
or
http://web.archive.org/web/20140512193334/https://code.rhodecode.com/rhodecode/files/f3b123159901f15426d18e3dc395e8369f70ebe0/LICENSE
for an online copy of that LICENSE file)
Conservancy reviewed these changes and confirmed that they can be licensed as
a whole to the Kallithea project under GPLv3-only.
While some of the contents committed herein are clearly licensed
GPLv3-or-later, on the whole we must assume the are GPLv3-only, since the
statement above from RhodeCode indicates that they intend GPLv3-only as their
license, per GPLv3ยง14 and other relevant sections of GPLv3.
| author | Bradley M. Kuhn <bkuhn@sfconservancy.org> |
|---|---|
| date | Wed, 02 Jul 2014 19:03:13 -0400 |
| parents | 685ebc84c2e9 |
| children |
| rev | line source |
|---|---|
| 2173 | 1 import datetime |
| 2 import functools | |
| 3 import decimal | |
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4 import imp |
| 2173 | 5 |
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6 __all__ = ['json', 'simplejson', 'stdlibjson'] |
| 2173 | 7 |
| 8 | |
| 9 def _is_aware(value): | |
| 10 """ | |
| 11 Determines if a given datetime.time is aware. | |
| 12 | |
| 13 The logic is described in Python's docs: | |
| 14 http://docs.python.org/library/datetime.html#datetime.tzinfo | |
| 15 """ | |
| 16 return (value.tzinfo is not None | |
| 17 and value.tzinfo.utcoffset(value) is not None) | |
| 18 | |
| 19 | |
| 20 def _obj_dump(obj): | |
| 21 """ | |
| 22 Custom function for dumping objects to JSON, if obj has __json__ attribute | |
| 23 or method defined it will be used for serialization | |
| 24 | |
| 25 :param obj: | |
| 26 """ | |
| 27 | |
| 28 if isinstance(obj, complex): | |
| 29 return [obj.real, obj.imag] | |
| 30 # See "Date Time String Format" in the ECMA-262 specification. | |
| 31 # some code borrowed from django 1.4 | |
| 32 elif isinstance(obj, datetime.datetime): | |
| 33 r = obj.isoformat() | |
| 34 if obj.microsecond: | |
| 35 r = r[:23] + r[26:] | |
| 36 if r.endswith('+00:00'): | |
| 37 r = r[:-6] + 'Z' | |
| 38 return r | |
| 39 elif isinstance(obj, datetime.date): | |
| 40 return obj.isoformat() | |
| 41 elif isinstance(obj, decimal.Decimal): | |
| 42 return str(obj) | |
| 43 elif isinstance(obj, datetime.time): | |
| 44 if _is_aware(obj): | |
| 45 raise ValueError("JSON can't represent timezone-aware times.") | |
| 46 r = obj.isoformat() | |
| 47 if obj.microsecond: | |
| 48 r = r[:12] | |
| 49 return r | |
| 50 elif isinstance(obj, set): | |
| 51 return list(obj) | |
| 52 elif hasattr(obj, '__json__'): | |
| 53 if callable(obj.__json__): | |
| 54 return obj.__json__() | |
| 55 else: | |
| 56 return obj.__json__ | |
| 57 else: | |
| 58 raise NotImplementedError | |
| 59 | |
| 60 | |
| 61 # Import simplejson | |
| 62 try: | |
| 63 # import simplejson initially | |
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64 _sj = imp.load_module('_sj', *imp.find_module('simplejson')) |
| 2173 | 65 |
| 66 def extended_encode(obj): | |
| 67 try: | |
| 68 return _obj_dump(obj) | |
| 69 except NotImplementedError: | |
| 70 pass | |
| 71 raise TypeError("%r is not JSON serializable" % (obj,)) | |
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72 # we handle decimals our own it makes unified behavior of json vs |
| 2173 | 73 # simplejson |
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74 sj_version = [int(x) for x in _sj.__version__.split('.')] |
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75 major, minor = sj_version[0], sj_version[1] |
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76 if major < 2 or (major == 2 and minor < 1): |
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77 # simplejson < 2.1 doesnt support use_decimal |
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78 _sj.dumps = functools.partial(_sj.dumps, |
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79 default=extended_encode) |
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80 _sj.dump = functools.partial(_sj.dump, |
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81 default=extended_encode) |
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82 else: |
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83 _sj.dumps = functools.partial(_sj.dumps, |
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84 default=extended_encode, |
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85 use_decimal=False) |
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86 _sj.dump = functools.partial(_sj.dump, |
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87 default=extended_encode, |
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88 use_decimal=False) |
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89 simplejson = _sj |
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90 |
| 2173 | 91 except ImportError: |
| 92 # no simplejson set it to None | |
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93 simplejson = None |
| 2173 | 94 |
| 95 | |
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96 try: |
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97 # simplejson not found try out regular json module |
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98 _json = imp.load_module('_json', *imp.find_module('json')) |
| 2173 | 99 |
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100 # extended JSON encoder for json |
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101 class ExtendedEncoder(_json.JSONEncoder): |
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102 def default(self, obj): |
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103 try: |
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104 return _obj_dump(obj) |
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105 except NotImplementedError: |
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106 pass |
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107 raise TypeError("%r is not JSON serializable" % (obj,)) |
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108 # monkey-patch JSON encoder to use extended version |
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109 _json.dumps = functools.partial(_json.dumps, cls=ExtendedEncoder) |
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110 _json.dump = functools.partial(_json.dump, cls=ExtendedEncoder) |
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111 |
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112 stdlibjson = _json |
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113 except ImportError: |
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114 stdlibjson = None |
| 2173 | 115 |
| 116 # set all available json modules | |
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117 if simplejson: |
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118 json = _sj |
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119 elif stdlibjson: |
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120 json = _json |
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121 else: |
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122 raise ImportError('Could not find any json modules') |