[1921] | 1 | import re |
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[782] | 2 | from zope.interface import implements |
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| 3 | from zope.component import adapts |
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[1921] | 4 | from zope.schema.interfaces import InvalidValue |
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[782] | 5 | |
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[1695] | 6 | from OFS.interfaces import ITraversable |
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[2369] | 7 | from OFS.interfaces import IPropertyManager |
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| 8 | |
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[782] | 9 | from Products.CMFCore.utils import getToolByName |
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| 10 | |
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[1695] | 11 | from quintagroup.canonicalpath.interfaces import ICanonicalPath |
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[1927] | 12 | from quintagroup.canonicalpath.interfaces import ICanonicalLink |
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[782] | 13 | |
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[1927] | 14 | PROPERTY_PATH = "canonical_path" |
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| 15 | PROPERTY_LINK = "canonical_link" |
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[782] | 16 | |
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[3599] | 17 | _is_canonical = re.compile(r"\S*$").match # non space and no new line(should be pickier) |
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[1921] | 18 | |
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| 19 | |
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[2369] | 20 | class DefaultPropertyAdapter(object): |
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| 21 | """Generic property adapter. |
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[782] | 22 | """ |
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[2369] | 23 | adapts(IPropertyManager) |
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[782] | 24 | |
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[2103] | 25 | prop = None |
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| 26 | |
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[782] | 27 | def __init__(self, context): |
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| 28 | self.context = context |
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| 29 | |
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[2103] | 30 | def getDefault(self): |
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| 31 | """Return default value for the self.prop""" |
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| 32 | raise NotImplementedError() |
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| 33 | |
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| 34 | def getProp(self): |
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| 35 | """ First of all return value from the self.prop, |
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| 36 | if self.prop not exist - return default value |
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[1921] | 37 | """ |
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[2103] | 38 | if self.context.hasProperty(self.prop): |
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| 39 | return self.context.getProperty(self.prop) |
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[1921] | 40 | |
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[2103] | 41 | return self.getDefault() |
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[1921] | 42 | |
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[2103] | 43 | def setProp(self, value): |
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| 44 | """ First validate value, than add/updater self.prop |
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[1921] | 45 | """ |
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[2103] | 46 | if self.context.hasProperty(self.prop): |
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| 47 | self.context._updateProperty(self.prop, value) |
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[1921] | 48 | else: |
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[2103] | 49 | self.context._setProperty(self.prop, value, type="string") |
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[1921] | 50 | |
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[2103] | 51 | def delProp(self): |
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| 52 | """ Delete self.prop customization |
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[1933] | 53 | """ |
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[2103] | 54 | if self.context.hasProperty(self.prop): |
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[3145] | 55 | self.context.manage_delProperties(ids=[self.prop, ]) |
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[1927] | 56 | |
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| 57 | |
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[2369] | 58 | class DefaultCanonicalAdapter(DefaultPropertyAdapter): |
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| 59 | """Generic canonical adapter. |
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| 60 | Add validation support to functionality of DefaultPropertyAdapter. |
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| 61 | """ |
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| 62 | adapts(ITraversable) |
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| 63 | |
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| 64 | def _validate(self, value): |
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| 65 | value.strip() |
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| 66 | if not _is_canonical(value): |
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| 67 | raise InvalidValue(value) |
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| 68 | return value |
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| 69 | |
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| 70 | def setProp(self, value): |
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| 71 | """ First validate value, than add/updater self.prop |
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| 72 | """ |
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| 73 | value = self._validate(value) |
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| 74 | super(DefaultCanonicalAdapter, self).setProp(value) |
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| 75 | |
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| 76 | |
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[2103] | 77 | class DefaultCanonicalPathAdapter(DefaultCanonicalAdapter): |
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| 78 | """Adapts base content to canonical path. |
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[1927] | 79 | """ |
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[2105] | 80 | implements(ICanonicalPath) |
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[1927] | 81 | |
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[2103] | 82 | prop = PROPERTY_PATH |
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[1927] | 83 | |
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[2369] | 84 | def __init__(self, context): |
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| 85 | super(DefaultCanonicalPathAdapter, self).__init__(context) |
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[3145] | 86 | self.purl = getToolByName(self.context, 'portal_url') |
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[2369] | 87 | |
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[2103] | 88 | def getDefault(self): |
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[3145] | 89 | return '/' + '/'.join(self.purl.getRelativeContentPath(self.context)) |
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[1927] | 90 | |
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[2105] | 91 | canonical_path = property(DefaultCanonicalAdapter.getProp, |
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| 92 | DefaultCanonicalAdapter.setProp, |
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| 93 | DefaultCanonicalAdapter.delProp) |
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[1927] | 94 | |
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| 95 | |
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[2103] | 96 | class DefaultCanonicalLinkAdapter(DefaultCanonicalAdapter): |
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| 97 | """Adapts base content to canonical link. |
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| 98 | """ |
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| 99 | implements(ICanonicalLink) |
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[1927] | 100 | |
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[2103] | 101 | prop = PROPERTY_LINK |
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[1927] | 102 | |
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[2103] | 103 | def getDefault(self): |
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| 104 | return self.context.absolute_url() |
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[1933] | 105 | |
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[2105] | 106 | canonical_link = property(DefaultCanonicalAdapter.getProp, |
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| 107 | DefaultCanonicalAdapter.setProp, |
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| 108 | DefaultCanonicalAdapter.delProp) |
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