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#-*- coding: utf-8 -*-
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# Copyright 2008-2010 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 re
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from xml import xpath
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from cl_template import objShare, blocText, xmlDoc
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class samba(objShare):
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"""Класс для обработки конфигурационного файла типа samba
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"""
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_comment = "#"
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configName = "samba"
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configVersion = "0.1"
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reHeader = re.compile("^[\t ]*\[[^\[\]]+\].*\n",re.M)
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reBody = re.compile(".+",re.M|re.S)
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reComment = re.compile("\s*%s.*|\s*;.*"%(_comment))
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reSeparator = re.compile("\s*=\s*")
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sepFields = "\n"
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reSepFields = re.compile(sepFields)
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def __init__(self,text):
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self.text = text
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self.blocTextObj = blocText()
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self._splitToFields = self.splitToFields
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# Объект документ
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self.docObj = self._textToXML()
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# XML документ
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self.doc = self.docObj.doc
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def postXML(self):
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"""Последующая постобработка XML"""
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# Для добавления перевода строки между областями если его нет
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xmlAreas = xpath.Evaluate("child::area", self.docObj.body)
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for xmlArea in xmlAreas:
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if xmlArea.previousSibling and\
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self.docObj.getTypeField(xmlArea.previousSibling) == "br":
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continue
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firstArea = False
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xmlFields = xpath.Evaluate("child::field", xmlArea)
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if not (xmlFields and\
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(self.docObj.getTypeField(xmlFields[-1]) == "br" or\
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self.docObj.getTypeField(xmlFields[-1]) == "comment")):
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if xmlArea.nextSibling:
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parentNode = xmlArea.parentNode
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nextNode = xmlArea.nextSibling
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parentNode.insertBefore(self.docObj.createField("br",
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[],"",[],
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False,False),
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nextNode)
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# Добавление переводов строк между полями
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if xmlFields:
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for node in xmlFields:
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# Добавление перевода строк в если его нет между полями
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if self.docObj.getTypeField(node) == "var" and\
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node.previousSibling and\
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not (self.docObj.getTypeField(node.previousSibling) in\
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("br","comment")):
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xmlArea.insertBefore(self.docObj.createField("br",
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[],"",[],
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False,
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False),
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node)
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# Удаление лишних переводов строк
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childNodes = self.docObj.getFieldsArea(self.docObj.body)
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lenBr = 0
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removeBrNodes = []
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for node in childNodes:
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if node.tagName == "field" and\
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self.docObj.getTypeField(node) == "br":
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lenBr += 1
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if lenBr > 2:
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removeBrNodes.append(node)
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else:
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lenBr = 0
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# Удаление
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for rmNode in removeBrNodes:
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self.docObj.body.removeChild(rmNode)
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def join(self, sambaObj):
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"""Объединяем конфигурации"""
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if isinstance(sambaObj, samba):
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self.docObj.joinDoc(sambaObj.doc)
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self.postXML()
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def setDataField(self, txtLines, endtxtLines):
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"""Создаем список объектов с переменными"""
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class fieldData:
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def __init__(self):
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self.name = False
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self.value = False
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self.comment = False
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self.br = False
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fields = []
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field = fieldData()
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z = 0
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for k in txtLines:
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textLine = k + endtxtLines[z]
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z += 1
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findComment = self.reComment.search(textLine)
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if not textLine.strip():
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field.br = textLine
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fields.append(field)
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field = fieldData()
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elif findComment:
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field.comment = textLine
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fields.append(field)
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field = fieldData()
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else:
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pars = textLine.strip()
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nameValue = self.reSeparator.split(pars)
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if len(nameValue) > 2:
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valueList = nameValue[1:]
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nameValue =[nameValue[0],"=".join(valueList)]
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if len(nameValue) == 2:
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name = nameValue[0]
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value = nameValue[1].replace(self.sepFields,"")
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field.name = name.replace(" ","").replace("\t","")
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field.value = value
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field.br = textLine
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fields.append(field)
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field = fieldData()
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return fields
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def splitCleanBloc(self, txtBloc):
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"""Делим блок на две части (переменные, пустые строки в конце)"""
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txtLines = txtBloc.split("\n")
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firstBloc = []
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nextBloc = []
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txtLines.reverse()
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z = 0
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for txtLine in txtLines:
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if not txtLine.strip():
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nextBloc.append(txtLine)
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else:
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break
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z += 1
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txtLines.reverse()
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firstBloc = txtLines[:-z]
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nextBloc.reverse()
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if nextBloc:
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firstBloc.append("")
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if nextBloc and "\n".join(nextBloc):
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return ("\n".join(firstBloc), "\n".join(nextBloc))
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else:
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return False
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def getFullAreas(self, blocs):
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"""Делит текст на области, (Заголовок, тело)
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Возвращает два списка: заголовки, тела
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"""
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headsAreas = []
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bodyAreas = []
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if not blocs:
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return []
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lenBlocs = len(blocs[0])
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for i in range(lenBlocs):
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txtBloc = blocs[1][i]
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clean = self.splitCleanBloc(txtBloc)
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if clean:
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headsAreas.append(blocs[0][i])
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bodyAreas.append(clean[0])
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headsAreas.append("")
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bodyAreas.append(clean[1])
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else:
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headsAreas.append(blocs[0][i])
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bodyAreas.append(blocs[1][i])
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return (headsAreas, bodyAreas)
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def createTxtConfig(self, strHeader, dictVar):
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"""Cоздает область с заголовком
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создает текст конфигурационного файла в формате samba из
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заголовка (строка) и словаря переменных
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"""
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if not strHeader:
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return ""
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outTxt = "[" + strHeader + "]\n"
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for key in dictVar.keys():
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outTxt += "%s = %s\n" %(key,dictVar[key])
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return outTxt
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def _textToXML(self):
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"""Преобразует текст в XML"""
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blTmp = self.blocTextObj.findBloc(self.text,self.reHeader,self.reBody)
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blocs = self.getFullAreas(blTmp)
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headers = []
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startHeaders = []
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finHeaders = []
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docObj = xmlDoc()
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docObj.createDoc(self.configName, self.configVersion)
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rootNode = docObj.getNodeBody()
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# Если пустой текст то создаем пустой документ
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if not blocs:
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return docObj
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for h in blocs[0]:
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listfinH = h.split("]")
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finH = listfinH[0]
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if "[" in finH:
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startHeaders.append(finH + "]")
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else:
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startHeaders.append(finH)
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if len(listfinH) == 2:
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finHeaders.append(listfinH[1])
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else:
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finHeaders.append("")
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headers.append(finH.replace("[","").replace("]","").strip())
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bodys = blocs[1]
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z = 0
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for h in headers:
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if not bodys[z]:
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z += 1
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continue
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areaAction = False
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if h:
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if h[0] == "!":
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docObj.createCaption(h[1:], [startHeaders[z],""])
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areaAction = "drop"
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elif h[0] == "-":
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docObj.createCaption(h[1:], [startHeaders[z],""])
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areaAction = "replace"
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else:
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docObj.createCaption(h, [startHeaders[z],""])
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else:
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docObj.createCaption(h, [startHeaders[z],""])
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if "\n" in blocs[0][z]:
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if self.reComment.search(finHeaders[z]):
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docObj.createField('comment', [finHeaders[z]])
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elif not finHeaders[z].strip() and\
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finHeaders[z].replace("\n",""):
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docObj.createField('br',
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[finHeaders[z].replace("\n","")])
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else:
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docObj.createField('br')
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fields = self._splitToFields(bodys[z])
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for f in fields:
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if f.name != False and f.value!=False and f.br!=False:
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# Обработка условий для samba
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if f.name[0] == "!" or f.name[0] == "-" or\
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f.name[0] == "+":
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qns = self.removeSymbolTerm(f.br)
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xmlField = docObj.createField("var",
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[qns],
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f.name[1:], [f.value])
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if f.name[0] == "!":
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# Удаляемое в дальнейшем поле
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docObj.setActionField(xmlField, "drop")
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else:
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docObj.createField("var",[f.br.replace("\n","")],
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f.name, [f.value])
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docObj.createField('br')
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elif f.comment != False:
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docObj.createField('comment', [f.comment])
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elif f.br != False:
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docObj.createField('br', [f.br.replace("\n","")])
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if h.strip():
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area = docObj.createArea()
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if areaAction:
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docObj.setActionArea(area, areaAction)
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rootNode.appendChild(area)
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else:
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fieldsNodes = docObj.tmpFields.getFields()
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for fieldNode in fieldsNodes:
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rootNode.appendChild(fieldNode)
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docObj.clearTmpFields()
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z += 1
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return docObj
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