1 | from AccessControl import allow_module |
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2 | from zope.component import queryMultiAdapter |
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3 | |
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4 | from Acquisition import aq_inner |
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5 | from DateTime import DateTime |
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6 | |
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7 | from Products.CMFCore.utils import getToolByName |
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8 | |
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9 | from quintagroup.seoptimizer.interfaces import IKeywords, IMappingMetaTags |
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10 | from quintagroup.seoptimizer.util import SortedDict |
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11 | |
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12 | allow_module('quintagroup.seoptimizer.util') |
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13 | qSEO_globals = globals() |
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14 | |
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15 | |
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16 | try: |
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17 | from Products.CMFPlone.PloneTool import PloneTool, METADATA_DCNAME, \ |
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18 | FLOOR_DATE, CEILING_DATE |
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19 | _present = hasattr(PloneTool, "listMetaTags") |
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20 | except ImportError: |
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21 | _present = False |
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22 | |
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23 | |
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24 | if _present: |
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25 | old_lmt = PloneTool.listMetaTags |
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26 | |
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27 | def listMetaTags(self, context): |
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28 | """Lists meta tags helper. |
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29 | |
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30 | Creates a mapping of meta tags. |
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31 | """ |
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32 | |
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33 | from quintagroup.seoptimizer.browser.interfaces import IPloneSEOLayer |
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34 | if not IPloneSEOLayer.providedBy(self.REQUEST): |
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35 | return old_lmt(getToolByName(self, 'plone_utils'), context) |
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36 | |
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37 | result = SortedDict() |
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38 | site_props = getToolByName(self, 'portal_properties').site_properties |
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39 | use_all = site_props.getProperty('exposeDCMetaTags', None) |
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40 | |
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41 | seo_context = queryMultiAdapter((context, self.REQUEST), name='seo_context') |
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42 | adapter = IMappingMetaTags(context, None) |
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43 | mapping_metadata = adapter and adapter.getMappingMetaTags() or SortedDict() |
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44 | |
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45 | if not use_all: |
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46 | metadata_names = mapping_metadata.has_key('DC.description') and {'DC.description': mapping_metadata['DC.description']} or SortedDict() |
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47 | if mapping_metadata.has_key('description'): |
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48 | metadata_names['description'] = mapping_metadata['description'] |
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49 | else: |
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50 | metadata_names = mapping_metadata |
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51 | |
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52 | for key, accessor in metadata_names.items(): |
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53 | if accessor == 'seo_keywords': |
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54 | # Set the additional matching keywords, if any |
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55 | adapter = IKeywords(context, None) |
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56 | if adapter is not None: |
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57 | keywords = adapter.listKeywords() |
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58 | if keywords: |
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59 | result['keywords'] = keywords |
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60 | continue |
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61 | |
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62 | method = getattr(seo_context, accessor, None) |
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63 | if method is None: |
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64 | method = getattr(aq_inner(context).aq_explicit, accessor, None) |
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65 | |
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66 | if not callable(method): |
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67 | continue |
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68 | |
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69 | # Catch AttributeErrors raised by some AT applications |
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70 | try: |
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71 | value = method() |
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72 | except AttributeError: |
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73 | value = None |
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74 | |
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75 | if not value: |
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76 | # No data |
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77 | continue |
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78 | if accessor == 'Publisher' and value == 'No publisher': |
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79 | # No publisher is hardcoded (TODO: still?) |
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80 | continue |
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81 | if isinstance(value, (list, tuple)): |
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82 | # convert a list to a string |
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83 | value = ', '.join(value) |
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84 | |
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85 | # Special cases |
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86 | if accessor == 'Description' and not metadata_names.has_key('description'): |
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87 | result['description'] = value |
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88 | elif accessor == 'Subject' and not metadata_names.has_key('keywords'): |
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89 | result['keywords'] = value |
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90 | |
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91 | if accessor not in ('Description', 'Subject'): |
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92 | result[key] = value |
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93 | |
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94 | if use_all: |
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95 | created = context.CreationDate() |
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96 | |
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97 | try: |
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98 | effective = context.EffectiveDate() |
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99 | if effective == 'None': |
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100 | effective = None |
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101 | if effective: |
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102 | effective = DateTime(effective) |
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103 | except AttributeError: |
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104 | effective = None |
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105 | |
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106 | try: |
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107 | expires = context.ExpirationDate() |
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108 | if expires == 'None': |
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109 | expires = None |
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110 | if expires: |
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111 | expires = DateTime(expires) |
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112 | except AttributeError: |
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113 | expires = None |
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114 | |
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115 | # Filter out DWIMish artifacts on effective / expiration dates |
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116 | if effective is not None and \ |
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117 | effective > FLOOR_DATE and \ |
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118 | effective != created: |
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119 | eff_str = effective.Date() |
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120 | else: |
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121 | eff_str = '' |
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122 | |
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123 | if expires is not None and expires < CEILING_DATE: |
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124 | exp_str = expires.Date() |
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125 | else: |
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126 | exp_str = '' |
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127 | |
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128 | if exp_str or exp_str: |
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129 | result['DC.date.valid_range'] = '%s - %s' % (eff_str, exp_str) |
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130 | |
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131 | # add custom meta tags (added from qseo tab by user) for given context and default from configlet |
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132 | custom_meta_tags = seo_context and seo_context.seo_customMetaTags() or [] |
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133 | for tag in custom_meta_tags: |
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134 | if tag['meta_content']: |
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135 | result[tag['meta_name']] = tag['meta_content'] |
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136 | |
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137 | return result |
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138 | |
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139 | PloneTool.listMetaTags = listMetaTags |
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