[3] | 1 | |
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| 2 | ''' |
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| 3 | Provides dummy Transaction and Response classes is used by Cheetah in place |
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| 4 | of real Webware transactions when the Template obj is not used directly as a |
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| 5 | Webware servlet. |
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| 6 | |
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| 7 | Warning: This may be deprecated in the future, please do not rely on any |
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| 8 | specific DummyTransaction or DummyResponse behavior |
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| 9 | ''' |
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| 10 | |
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| 11 | import types |
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| 12 | |
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| 13 | class DummyResponseFailure(Exception): |
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| 14 | pass |
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| 15 | |
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| 16 | class DummyResponse(object): |
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| 17 | ''' |
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| 18 | A dummy Response class is used by Cheetah in place of real Webware |
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| 19 | Response objects when the Template obj is not used directly as a Webware |
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| 20 | servlet |
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| 21 | ''' |
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| 22 | def __init__(self): |
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| 23 | self._outputChunks = [] |
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| 24 | |
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| 25 | def flush(self): |
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| 26 | pass |
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| 27 | |
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| 28 | def write(self, value): |
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| 29 | self._outputChunks.append(value) |
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| 30 | |
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| 31 | def writeln(self, txt): |
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| 32 | write(txt) |
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| 33 | write('\n') |
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| 34 | |
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| 35 | def getvalue(self, outputChunks=None): |
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| 36 | chunks = outputChunks or self._outputChunks |
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| 37 | try: |
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| 38 | return ''.join(chunks) |
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| 39 | except UnicodeDecodeError, ex: |
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| 40 | nonunicode = [c for c in chunks if not isinstance(c, unicode)] |
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| 41 | raise DummyResponseFailure('''Looks like you're trying to mix encoded strings with Unicode strings |
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| 42 | (most likely utf-8 encoded ones) |
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| 43 | |
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| 44 | This can happen if you're using the `EncodeUnicode` filter, or if you're manually |
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| 45 | encoding strings as utf-8 before passing them in on the searchList (possible offenders: |
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| 46 | %s) |
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| 47 | (%s)''' % (nonunicode, ex)) |
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| 48 | |
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| 49 | |
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| 50 | def writelines(self, *lines): |
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| 51 | ## not used |
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| 52 | [self.writeln(ln) for ln in lines] |
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| 53 | |
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| 54 | |
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| 55 | class DummyTransaction(object): |
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| 56 | ''' |
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| 57 | A dummy Transaction class is used by Cheetah in place of real Webware |
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| 58 | transactions when the Template obj is not used directly as a Webware |
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| 59 | servlet. |
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| 60 | |
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| 61 | It only provides a response object and method. All other methods and |
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| 62 | attributes make no sense in this context. |
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| 63 | ''' |
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| 64 | def __init__(self, *args, **kwargs): |
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| 65 | self._response = None |
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| 66 | |
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| 67 | def response(self, resp=None): |
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| 68 | if self._response is None: |
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| 69 | self._response = resp or DummyResponse() |
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| 70 | return self._response |
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| 71 | |
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| 72 | |
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| 73 | class TransformerResponse(DummyResponse): |
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| 74 | def __init__(self, *args, **kwargs): |
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| 75 | super(TransformerResponse, self).__init__(*args, **kwargs) |
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| 76 | self._filter = None |
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| 77 | |
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| 78 | def getvalue(self, **kwargs): |
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| 79 | output = super(TransformerResponse, self).getvalue(**kwargs) |
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| 80 | if self._filter: |
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| 81 | _filter = self._filter |
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| 82 | if isinstance(_filter, types.TypeType): |
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| 83 | _filter = _filter() |
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| 84 | return _filter.filter(output) |
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| 85 | return output |
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| 86 | |
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| 87 | |
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| 88 | class TransformerTransaction(object): |
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| 89 | def __init__(self, *args, **kwargs): |
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| 90 | self._response = None |
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| 91 | def response(self): |
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| 92 | if self._response: |
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| 93 | return self._response |
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| 94 | return TransformerResponse() |
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| 95 | |
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