1 | import Globals |
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2 | from Products.CMFCore.DirectoryView import registerDirectory |
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3 | from AccessControl import allow_module |
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4 | from Products.CMFCore.utils import getToolByName |
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5 | from util import SortedDict |
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6 | from os import path |
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7 | |
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8 | from Products.qSEOptimizer import config |
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9 | |
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10 | try: |
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11 | from Products.qSEOptimizer.interfaces import IKeywords |
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12 | zope_interface_available = True |
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13 | except ImportError: |
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14 | zope_interface_available = False |
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15 | |
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16 | allow_module('Products.qSEOptimizer.util') |
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17 | qSEO_globals = globals() |
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18 | registerDirectory('skins', qSEO_globals) |
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19 | |
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20 | try: |
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21 | # for Plone-2.1 and higher |
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22 | from Products.CMFPlone.PloneTool import PloneTool |
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23 | _present = hasattr(PloneTool, "listMetaTags") |
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24 | except ImportError: |
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25 | _present = False |
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26 | |
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27 | def propertyItems(context): |
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28 | """Return a list of (id,property) tuples. |
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29 | """ |
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30 | return map(lambda i,c=context: (i['id'],getattr(c,i['id'],None)), |
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31 | context._properties) |
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32 | |
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33 | if _present: |
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34 | old_lmt = PloneTool.listMetaTags |
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35 | |
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36 | def listMetaTags(self, context): |
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37 | portal_props = getToolByName(context, 'portal_properties') |
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38 | seo_props = getToolByName(portal_props, 'seo_properties', None) |
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39 | if seo_props is None: |
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40 | return old_lmt(self, context) |
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41 | |
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42 | site_props = getToolByName(portal_props, 'site_properties') |
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43 | exposeDCMetaTags = site_props.exposeDCMetaTags |
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44 | |
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45 | metaTags = SortedDict() |
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46 | metaTags.update(old_lmt(self, context)) |
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47 | metadataList = [ |
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48 | ('qSEO_Description', 'description'), |
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49 | ('qSEO_Keywords', 'keywords'), |
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50 | ('qSEO_Robots', 'robots'), |
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51 | ('qSEO_Distribution','distribution')] |
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52 | |
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53 | if exposeDCMetaTags: |
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54 | metadataList.append(('qSEO_Distribution', 'DC.distribution')) |
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55 | |
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56 | for accessor, key in metadataList: |
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57 | method = getattr(context, accessor, None) |
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58 | if not callable(method): |
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59 | # ups |
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60 | continue |
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61 | # Catch AttributeErrors raised by some AT applications |
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62 | try: |
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63 | value = method() |
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64 | except AttributeError: |
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65 | value = None |
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66 | |
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67 | if not value: |
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68 | continue |
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69 | if isinstance(value, (tuple, list)): |
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70 | value = ', '.join(value) |
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71 | |
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72 | metaTags[key] = value |
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73 | |
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74 | # add custom meta tags (added from qseo tab by user) for given context |
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75 | property_prefix = 'qSEO_custom_' |
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76 | for property, value in propertyItems(context): |
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77 | idx = property.find(property_prefix) |
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78 | if idx == 0 and len(property) > len(property_prefix): |
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79 | metaTags[property[len(property_prefix):]] = value |
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80 | |
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81 | # Set the additional matching keywords, if any |
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82 | if zope_interface_available: |
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83 | adapter = IKeywords(context, None) |
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84 | if adapter is not None: |
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85 | keywords = adapter.listKeywords() |
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86 | if keywords: |
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87 | metaTags['keywords'] = keywords |
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88 | |
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89 | return metaTags |
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90 | |
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91 | PloneTool.listMetaTags = listMetaTags |
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