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#-*- coding: utf-8 -*-
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# Copyright 2010 Calculate Ltd. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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import time
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import re
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from xml import xpath
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import xml.dom.minidom
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from format.xml_gconf import xml_gconf
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# Перевод cообщений модуля
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from cl_lang import lang
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tr = lang()
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tr.setLocalDomain('cl_lib')
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tr.setLanguage(sys.modules[__name__])
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class xml_gconf_tree(xml_gconf):
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"""Класс для объединения gconf_tree-xml файлов"""
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def _join(self, xmlNewNode, xmlOldNode, flagRootNode=True):
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"""Объединение корневой ноды шаблона и корневой ноды файла"""
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xmlNode = xmlNewNode
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childNodes = xmlNode.childNodes
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nextOldNode = xmlOldNode
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flagError = False
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if xmlNode.nodeType == xmlNode.ELEMENT_NODE:
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n = xmlNode
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tagName = n.tagName
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tagNameStr = tagName.encode("UTF-8")
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nAction = u''
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nName = u''
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nType = u''
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nValue = u''
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nSchema = u''
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attrName = ''
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if flagRootNode:
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if not tagName == "gconf":
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self.setError(_("The text is not a valid gconf-XML format \
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(not found '<gconf>...</gconf>')"))
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return False
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else:
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if not tagName in ("dir", "entry"):
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self.setError(_("The text is not a valid gconf-XML format \
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(found '<%(tag)s>..</%(tag)s>'")%{'tag':tagNameStr})
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return False
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if not n.hasAttribute("name"):
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self.setError(\
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_('Not found arrtibute "name" in %(tag)s')\
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%{'tag':tagNameStr})
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return False
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nName = n.getAttribute("name")
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attrName = u"attribute::name='%s'"%nName
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if n.hasAttribute("action"):
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nAction = n.getAttribute("action")
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if not nAction in ("join","replace","drop"):
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textError = _('''In the text, XML template, look \
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for a reserved attribute 'action' with the incorrect value.\n\
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Valid values attribute 'action': \
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(action="join", action="replace", action="drop")''')
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self.setError(textError)
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return False
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if xmlOldNode.parentNode:
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findAttrStr = ""
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if attrName:
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findAttrStr = "[%s]"%attrName
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findPath = u"child::%s%s"%(tagName,findAttrStr)
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# Рабочая нода
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if flagRootNode:
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workNode = xmlOldNode.parentNode
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else:
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workNode = xmlOldNode
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oldNodes = xpath.Evaluate(findPath, workNode)
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# По умолчанию - объединение аттрибутов
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flagJoin = True
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flagReplace = False
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flagDrop = False
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if nAction=="replace":
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flagReplace = True
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flagJoin = False
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# Удаляем ноду
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if nAction == "drop":
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flagDrop = True
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flagJoin = False
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if flagRootNode:
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textError = _('Incorrect action="drop" in root node')
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self.setError(textError)
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return False
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if oldNodes:
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if len(oldNodes)>1:
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textError = _("The uncertainty in this template are \
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the same nodes at one level")
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self.setError(textError)
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return False
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nextOldNode = oldNodes[0]
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# Объединение аттрибутов нод
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if flagJoin:
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listOldAttributes = nextOldNode.attributes.items()
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if listOldAttributes:
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listOldAttributes = filter(lambda x:\
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x[0] != "mtime", listOldAttributes)
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# Замена содержимого
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if xmlNode.tagName == "entry":
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replaceXmlNode = xmlNode.cloneNode(True)
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# Сравнение содержимого нод
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if not self.cmpListsNodesEntry([replaceXmlNode],
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[nextOldNode]):
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replaceXmlNode.setAttribute("mtime",
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self.currentTime)
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if not\
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self._removeDropNodesAndAttrAction(\
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replaceXmlNode):
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return False
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workNode.replaceChild(replaceXmlNode,
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nextOldNode)
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childNodes = False
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listNewAttributes = xmlNode.attributes.items()
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if listNewAttributes:
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listNewAttributes = filter(lambda x:\
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not x[0] in ("action", "mtime"),
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listNewAttributes)
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if set(listNewAttributes)!= set(listOldAttributes):
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# Объединение аттрибутов
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for attrName, attrValue in listNewAttributes:
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nextOldNode.setAttribute(attrName, attrValue)
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if nextOldNode.tagName == "entry":
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nextOldNode.setAttribute("mtime",
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self.currentTime)
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# Замещение ноды
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elif flagReplace:
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replaceXmlNode = xmlNode.cloneNode(True)
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# Сравнение содержимого нод
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if not self.cmpListsNodesEntry([replaceXmlNode],
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[nextOldNode]):
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if replaceXmlNode.tagName == "entry":
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replaceXmlNode.setAttribute("mtime",
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self.currentTime)
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if not\
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self._removeDropNodesAndAttrAction(\
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replaceXmlNode):
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return False
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workNode.replaceChild(replaceXmlNode,
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nextOldNode)
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childNodes = False
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# Удаление ноды
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elif flagDrop:
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workNode.removeChild(nextOldNode)
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childNodes = False
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else:
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# Добавление ноды
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childNodes = False
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if not flagDrop:
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appendXmlNode = xmlNode.cloneNode(True)
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if appendXmlNode.tagName == "entry":
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appendXmlNode.setAttribute("mtime",
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self.currentTime)
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if not\
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self._removeDropNodesAndAttrAction(appendXmlNode):
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return False
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workNode.appendChild(appendXmlNode)
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if childNodes:
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for node in childNodes:
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if not self._join(node, nextOldNode, False):
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flagError = True
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break
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if flagError:
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return False
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return True
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def join(self, xml_gconfObj):
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"""Объединяем конфигурации"""
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# Получаем текущее время
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self.currentTime = self.getCurrentTime()
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if isinstance(xml_gconfObj, xml_gconf_tree):
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try:
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self.joinDoc(xml_gconfObj.doc)
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except:
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self.setError(_("Failed to join the template"))
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return False
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return True |
