Annotation of ECHO_content/ECHO_xslt.py, revision 1.10
1.1 dwinter 1: ### XSLT Class ###
2: ### setzt 4 suite vorraus ###
1.4 dwinter 3: from Acquisition import Implicit
1.1 dwinter 4: from Products.PageTemplates.PageTemplateFile import PageTemplateFile
5: from Globals import DTMLFile
6: from ECHO_Nav import ECHO_pageTemplate
1.2 dwinter 7: from threading import Thread,Timer
1.4 dwinter 8: import threading
9: from ECHO_helpers import *
1.8 dwinter 10: import ECHO_language
1.4 dwinter 11: import sys
12: import urllib
13: import urlparse
1.6 dwinter 14: from Ft.Xml.Domlette import Print, PrettyPrint
1.7 dwinter 15: from StringIO import StringIO
1.9 dwinter 16: from types import *
1.1 dwinter 17: from Globals import package_home
1.9 dwinter 18: import transaction
1.4 dwinter 19:
1.1 dwinter 20: import os.path
21:
22: import urllib
23:
24: try:
25: from Ft.Xml.Xslt.Processor import Processor
1.6 dwinter 26: from Ft.Xml import InputSource, EMPTY_NAMESPACE,Parse
1.10 ! dwinter 27: from Ft.Xml.Domlette import NonvalidatingReader
1.1 dwinter 28: except:
29: print "4suite has to be installed"
30:
31:
1.4 dwinter 32: class getXML(Implicit):
1.2 dwinter 33: """get XML thread"""
34:
1.4 dwinter 35: def set(self,qs,xsl,result):
36: """set"""
37:
38: self._v_qs=qs
1.2 dwinter 39: self.xsl=xsl
1.4 dwinter 40: self.result=None
1.2 dwinter 41:
1.4 dwinter 42: # def acquireLock(self):
43: #
44: # lock=getattr(self, "_v_lock", None)
45: # if not lock:
46: # self._v_lock=threading.Lock()
47: # lock=self._v_lock
48: # lock.acquire()
49: #
50: # def releaseLock(self):
51: # # acquire() should have been called
52: # # about one second before. This means the volatile lock
53: # # should still be there
54: #
55: # self._v_lock.release()
56: #
57:
1.2 dwinter 58: def __call__(self):
1.4 dwinter 59: """wait"""
60: return True
61:
62: def run(self):
63: """call it"""
64: xml=""
1.9 dwinter 65:
1.3 dwinter 66: try:
1.5 dwinter 67:
1.4 dwinter 68: urlH=urllib.urlopen(self._v_qs)
69: xml=urlH.read()
70: urlH.close()
71: xsltproc=Processor()
72: document = InputSource.DefaultFactory.fromString(xml)
73:
74: stylesheet = InputSource.DefaultFactory.fromUri(self.xsl)
75:
76: xsltproc.appendStylesheet(stylesheet)
77:
78:
79: #print self.xsl
80: #print xsltproc.run(document)
81: tmp=xsltproc.run(document)
82:
83: self.result=tmp[0:]
84:
1.3 dwinter 85:
86: except:
1.4 dwinter 87:
88: self.result="<html>error: %s %s<br>"%sys.exc_info()[0:2]
89: self.result+=xml
90: self.result+="</html>"
1.2 dwinter 91:
1.4 dwinter 92:
93:
1.2 dwinter 94: def getResult(self):
1.4 dwinter 95:
1.2 dwinter 96: return self.result
97:
1.9 dwinter 98: from ZODB import DB
99: from ZODB.FileStorage import FileStorage
100: class ECHO_cache:
101: def __init__(self):
102: """init the storage"""
103: self.storage=FileStorage("/var/tmp/echo_cache.fs")
104: self.db=DB(self.storage)
105: self.connection=self.db.open()
106: self.root=self.connection.root()
107:
108: def deleteObject(self,name,pn=None):
109: """delete an object from cache"""
110: fileStore=self.root.get(name,None)
111: if fileStore:
112: if not pn:
113: del(self.root[name])
114: else:
115: if self.root[name].get(pn,None):
116: del(self.root[name][pn])
117:
118:
119: def storeObject(self,name,pn,object):
120: """store an object"""
121:
122: if not self.root.get(name,None):
123: self.root[name]={}
124:
125:
126: #following is necessary to make clear that object has really changed for ZODB
127: tmp=self.root[name]
128: tmp[pn]=object
129: self.root[name]=tmp
130: transaction.get().commit()
131: return True
132:
133: def retrieveObject(self,name,pn):
134: """retrieve it"""
135:
136: fileStore=self.root.get(name,None)
137: if not fileStore:
138: return None
139: else:
140: return self.root[name].get(pn,None)
141:
1.2 dwinter 142:
1.8 dwinter 143: class ECHO_xslt(ECHO_pageTemplate,ECHO_language.ECHO_language):
1.1 dwinter 144: """ECHO_xslt classe"""
145:
146: meta_type="ECHO_xslt"
1.4 dwinter 147:
1.10 ! dwinter 148: cache=ECHO_cache() # cache for analysed pages
! 149: caching="yes"
! 150:
! 151: appendQueryString=True # add query string to the cgiUrl can be changed with addChanges
! 152:
! 153: passURL=False #use url from querystring parameter fn to retrieve the text and not the url in cgi-url can be changed with addChanges
! 154:
1.9 dwinter 155:
1.4 dwinter 156: results={}
157: manage_options=ECHO_pageTemplate.manage_options+(
158: {'label':'Change xml-ressource','action':'change_ECHO_xsltForm'},)
159:
1.2 dwinter 160: def refreshTxt(self):
161: """txt fuer refresh"""
162: return """ 2;url=%s?repeat=%s """%(self.absolute_url(),self.threadName)
1.1 dwinter 163:
164: def xslt(self):
1.2 dwinter 165: """xslt"""
1.1 dwinter 166:
1.4 dwinter 167: return self.document_src()
1.1 dwinter 168:
1.4 dwinter 169: def change_ECHO_xsltForm(self):
170: """change form"""
171: pt=zptFile(self, 'zpt/ChangeECHO_xsltForm.zpt')
172: return pt()
173:
1.10 ! dwinter 174: def addChanges(self,cgiUrl,appendQueryString=False,passURL=False,caching=False,RESPONSE=None):
1.4 dwinter 175: """change the xslt, ueberschriebt addChanges in ECHO_PageTemplate"""
1.10 ! dwinter 176:
1.4 dwinter 177: if urlparse.urlparse(cgiUrl)[0]=="":#relative url in absolute
178: self.cgiUrl=urlparse.urljoin(self.absolute_url(), cgiUrl)
179: else:
180: self.cgiUrl=cgiUrl
1.10 ! dwinter 181:
! 182: if appendQueryString:
! 183: self.appendQueryString=True
! 184: else:
! 185: self.appendQueryString=False
! 186:
! 187: if passURL:
! 188: self.passURL=True
! 189: else:
! 190: self.passURL=False
! 191:
! 192: if caching:
! 193: self.caching="yes"
! 194: else:
! 195: self.caching="No"
! 196:
! 197:
1.4 dwinter 198: if RESPONSE:
199: RESPONSE.redirect("manage_main")
1.2 dwinter 200:
201: def index_html(self,repeat=None):
202: """standard ausgabe"""
1.4 dwinter 203:
1.2 dwinter 204: threadName=repeat
205:
206: if not threadName or threadName=="":
1.4 dwinter 207:
208: #abwaertskompatibilitt mit altem nivht konfigurierbaren prototypen
209:
210: if getattr(self,'cgiUrl','')=='':
211: self.cgiUrl="http://medea.mpiwg-berlin.mpg.de/cgi-bin/search/q1"
212:
1.6 dwinter 213: qs="%s%s"%(self.cgiUrl,self.REQUEST['QUERY_STRING'])
1.2 dwinter 214: xsl=self.absolute_url()+"/xslt"
1.4 dwinter 215: self._v_xmltrans=getXML().__of__(self)
216: #self._xmltrans.start()
217: thread=Thread(target=self._v_xmltrans)
218: thread.start()
219: self._v_xmltrans.set(qs,xsl,None)
220: self._v_xmltrans.run()
1.2 dwinter 221:
222:
223: self.threadName=thread.getName()[0:]
224: wait_template=self.aq_parent.ZopeFind(self.aq_parent,obj_ids=['wait_template'])
225: if wait_template:
226: return wait_template[0][1]()
227: pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','xsltWait.zpt')).__of__(self)
228: return pt()
1.4 dwinter 229: #_v_xmltrans.run()
1.2 dwinter 230:
231: else:
232:
1.4 dwinter 233: if (self._v_xmltrans.getResult()==None):
1.3 dwinter 234:
1.5 dwinter 235: wait_template=self.aq_parent.ZopeFind(self.aq_parent,obj_ids=['wait_template'])
236: if wait_template:
237: return wait_template[0][1]()
1.2 dwinter 238:
239: pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','xsltWait.zpt')).__of__(self)
240: return pt()
241: else:
1.4 dwinter 242: return self._v_xmltrans.getResult()
1.2 dwinter 243:
244:
1.10 ! dwinter 245: def getText(self):
! 246: """print nur den text"""
! 247: qs,baseUri=self.getTextInput()
! 248: self.REQUEST.RESPONSE.redirect(qs)
1.9 dwinter 249:
250: def deleteCache(self):
251: """deletefrom cache"""
252: fn=self.REQUEST['fn']
253: self.cache.deleteObject(fn)
254:
1.10 ! dwinter 255: def getPageLex(self,_pn="1",_caching=None):
1.9 dwinter 256: """getpage mit lexikalischer analyse und xslt transform
257: if _caching=yes dann wird die lwxikalisch analysierte seite in einem cache abgespeichert
258: """
1.10 ! dwinter 259:
! 260: if not _caching:
! 261: _caching=self.caching
! 262:
1.9 dwinter 263: fn=self.REQUEST['fn']
264:
265:
266: fromCache=self.cache.retrieveObject(fn,_pn)
1.10 ! dwinter 267:
1.9 dwinter 268: if fromCache and _caching=="yes":
1.10 ! dwinter 269:
1.9 dwinter 270: txt = fromCache
271: else:
272: txt=self.tagLex(nr=_pn)
1.10 ! dwinter 273:
1.9 dwinter 274: self.cache.storeObject(fn,_pn,txt[0:])
275:
1.10 ! dwinter 276:
1.9 dwinter 277: xsl=self.xslt()
278:
279: xsltproc=Processor()
280: if type(txt)==UnicodeType:
281: document = InputSource.DefaultFactory.fromString(txt.encode('utf-8'))
282: else:
283: document = InputSource.DefaultFactory.fromString(txt)
284: stylesheet = InputSource.DefaultFactory.fromString(xsl)
285: xsltproc.appendStylesheet(stylesheet)
286: tmp=xsltproc.run(document)
287:
288: return tmp[0:]
289:
1.10 ! dwinter 290: def getTextInput(self):
! 291: """get the text
! 292: wie der text geholt wird liegt an der konfiguration,
! 293: is appendQueryString gesetzt, dann wir jeweils der Querystring an vorgebenen url gesetzt, erwartet wird fn=
! 294: fr den Pfad, is passURL gesetzt, dann wird falls fn= eine vollstndige url enthlt, diese anstelle der in cgiurl definierten genommen.
! 295: """
! 296:
! 297: if getattr(self,'passURL',False) and self.REQUEST.has_key('fn') and (urlparse.urlparse(self.REQUEST['fn'])[0]=='http'):
! 298: qs=self.REQUEST['fn']
! 299: baseUri=qs
! 300: elif getattr(self,'pappendQueryString',True):
! 301: qs="%s%s"%(self.cgiUrl,self.REQUEST['QUERY_STRING'])
! 302: baseUri=self.cgiUrl
! 303: else:
! 304: qs="%s"%(self.cgiUrl)
! 305: baseUri=self.cgiUrl
! 306:
! 307: #fact= InputSource.DefaultFactory.fromUri(qs)
! 308: return qs,baseUri
! 309: #return InputSource.InputSource(fact)
! 310: #xmlt=urllib.urlopen(qs).read()
! 311:
! 312: def getPage(self,_pn,REQUEST=None,_caching=None):
1.6 dwinter 313: """get a page from an xml"""
1.10 ! dwinter 314:
! 315: if not _caching:
! 316: _caching=self.caching
! 317:
1.7 dwinter 318: pn=int(_pn)-1
319: if pn<0:
320: if REQUEST:
321: return "Sorry, pagenumbers have to be greater than 0"
322: else:
323: return None
1.10 ! dwinter 324:
! 325: xmlt,self.baseUri=self.getTextInput()
1.9 dwinter 326:
1.10 ! dwinter 327: #get the text from cache, if existing
! 328: fromCache=self.cache.retrieveObject(self.baseUri,"-1")
! 329: if fromCache and _caching=="yes":
! 330:
! 331: txt = fromCache
! 332: else:
! 333:
! 334: txt=urllib.urlopen(xmlt).read()
! 335:
! 336: self.cache.storeObject(self.baseUri,"-1",txt)
1.9 dwinter 337:
1.10 ! dwinter 338: dom=NonvalidatingReader.parseString(txt,self.baseUri)
1.9 dwinter 339:
1.10 ! dwinter 340: #pb should have a namespache
1.9 dwinter 341:
1.10 ! dwinter 342: pbs=dom.xpath("//mpiwg:pb",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})
! 343: if len(pbs)==0: # versuche nochmal ohne
! 344: pbs=dom.xpath("//pb")
! 345:
1.7 dwinter 346: if pn > len(pbs):
347: if REQUEST:
1.10 ! dwinter 348: return "Sorry, pagenumber %s does not exit"%(pn+1)
1.7 dwinter 349: else:
350: return None
351:
1.6 dwinter 352: beginNode=pbs[pn] #take the n'th pb
1.7 dwinter 353:
354: if not (pn==len(pbs)-1): # nicht die letzte Seite
355: endNode=pbs[pn+1]
356: else:
357: endNode=None
358:
359: deleteNodes=beginNode.xpath('preceding::node()')
360: if endNode:
361: deleteNodes+=endNode.xpath('following::node()')
362: for node in deleteNodes:
363: try:
364: parent=node.xpath("..")
365:
366: if parent:
367: parent[0].removeChild(node)
368: except:
369: zLOG.LOG("ECHO_Resource (getAccessRightMD)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
370: strio = StringIO()
371: PrettyPrint(dom,strio)
372: xmlstr = strio.getvalue()
1.10 ! dwinter 373:
1.7 dwinter 374: return xmlstr
1.6 dwinter 375:
376:
377:
1.1 dwinter 378: def manage_addECHO_xsltForm(self):
379: """Form for adding"""
380: pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','AddECHO_xslt.zpt')).__of__(self)
381: return pt()
382:
383: from urllib import quote
384:
385:
1.4 dwinter 386: def manage_addECHO_xslt(self, id, label, weight= 0,contentType=0,title=None, text=None, cgiUrl=None,
1.1 dwinter 387: REQUEST=None, submit=None):
388: "Add a Page Template with optional file content."
389:
390:
391: id = str(id)
392: if REQUEST is None:
393: self._setObject(id, ECHO_xslt(id, text))
394: ob = getattr(self, id)
395: setattr(ob,'weight',weight)
396: setattr(ob,'label',label)
397: setattr(ob,'contentType',contentType)
398: if title:
399: ob.pt_setTitle(title)
400: return ob
1.4 dwinter 401: setattr(ob,'cgiUrl',cgiUrl)
1.1 dwinter 402: else:
403: file = REQUEST.form.get('file')
404: headers = getattr(file, 'headers', None)
405: if headers is None or not file.filename:
406: zpt = ECHO_xslt(id)
407: else:
408: zpt = ECHO_xslt(id, file, headers.get('contentType'))
409:
410: self._setObject(id, zpt)
411: ob = getattr(self, id)
412: setattr(ob,'weight',weight)
413: setattr(ob,'label',label)
1.4 dwinter 414: setattr(ob,'cgiUrl',cgiUrl)
1.1 dwinter 415: if title:
416: ob.pt_setTitle(title)
417:
418: try:
419: u = self.DestinationURL()
420: except AttributeError:
421: u = REQUEST['URL1']
422:
423: if submit == " Add and Edit ":
424: u = "%s/%s" % (u, quote(id))
425: REQUEST.RESPONSE.redirect(u+'/manage_main')
426: return ''
427:
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