1 """mime type transformation engine for cubicweb, based on mtconverter |
1 """pre 3.6 bw compat""" |
2 |
2 # pylint: disable-msg=W0614,W0401 |
3 :organization: Logilab |
3 from warnings import warn |
4 :copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
4 warn('moved to cubicweb.mttransforms', DeprecationWarning, stacklevel=2) |
5 :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
5 from cubicweb.mttransforms import * |
6 :license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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7 """ |
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8 __docformat__ = "restructuredtext en" |
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9 |
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10 from logilab import mtconverter |
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11 |
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12 from logilab.mtconverter.engine import TransformEngine |
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13 from logilab.mtconverter.transform import Transform |
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14 from logilab.mtconverter import (register_base_transforms, |
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15 register_pil_transforms, |
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16 register_pygments_transforms) |
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17 |
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18 from cubicweb.utils import UStringIO |
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19 from cubicweb.common.uilib import rest_publish, html_publish |
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20 |
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21 HTML_MIMETYPES = ('text/html', 'text/xhtml', 'application/xhtml+xml') |
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22 |
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23 # CubicWeb specific transformations |
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24 |
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25 class rest_to_html(Transform): |
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26 inputs = ('text/rest', 'text/x-rst') |
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27 output = 'text/html' |
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28 def _convert(self, trdata): |
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29 return rest_publish(trdata.appobject, trdata.decode()) |
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30 |
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31 class html_to_html(Transform): |
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32 inputs = HTML_MIMETYPES |
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33 output = 'text/html' |
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34 def _convert(self, trdata): |
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35 return html_publish(trdata.appobject, trdata.data) |
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36 |
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37 |
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38 # Instantiate and configure the transformation engine |
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39 |
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40 mtconverter.UNICODE_POLICY = 'replace' |
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41 |
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42 ENGINE = TransformEngine() |
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43 ENGINE.add_transform(rest_to_html()) |
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44 ENGINE.add_transform(html_to_html()) |
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45 |
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46 try: |
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47 from cubicweb.ext.tal import CubicWebContext, compile_template |
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48 except ImportError: |
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49 HAS_TAL = False |
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50 from cubicweb import schema |
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51 schema.NEED_PERM_FORMATS.remove('text/cubicweb-page-template') |
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52 |
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53 else: |
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54 HAS_TAL = True |
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55 |
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56 class ept_to_html(Transform): |
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57 inputs = ('text/cubicweb-page-template',) |
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58 output = 'text/html' |
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59 output_encoding = 'utf-8' |
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60 def _convert(self, trdata): |
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61 context = CubicWebContext() |
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62 appobject = trdata.appobject |
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63 context.update({'self': appobject, 'rset': appobject.cw_rset, |
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64 'req': appobject._cw, |
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65 '_' : appobject._cw._, |
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66 'user': appobject._cw.user}) |
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67 output = UStringIO() |
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68 template = compile_template(trdata.encode(self.output_encoding)) |
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69 template.expand(context, output) |
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70 return output.getvalue() |
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71 |
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72 ENGINE.add_transform(ept_to_html()) |
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73 |
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74 if register_pil_transforms(ENGINE, verb=False): |
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75 HAS_PIL_TRANSFORMS = True |
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76 else: |
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77 HAS_PIL_TRANSFORMS = False |
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78 |
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79 try: |
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80 from logilab.mtconverter.transforms import pygmentstransforms |
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81 for mt in ('text/plain',) + HTML_MIMETYPES: |
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82 try: |
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83 pygmentstransforms.mimetypes.remove(mt) |
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84 except ValueError: |
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85 continue |
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86 register_pygments_transforms(ENGINE, verb=False) |
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87 |
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88 def patch_convert(cls): |
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89 def _convert(self, trdata, origconvert=cls._convert): |
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90 try: |
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91 trdata.appobject._cw.add_css('pygments.css') |
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92 except AttributeError: # session has no add_css, only http request |
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93 pass |
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94 return origconvert(self, trdata) |
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95 cls._convert = _convert |
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96 patch_convert(pygmentstransforms.PygmentsHTMLTransform) |
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97 |
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98 HAS_PYGMENTS_TRANSFORMS = True |
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99 except ImportError: |
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100 HAS_PYGMENTS_TRANSFORMS = False |
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101 |
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102 register_base_transforms(ENGINE, verb=False) |
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