1: ### XSLT Class ###
2: ### setzt 4 suite vorraus ###
3: from Acquisition import Implicit
4: from Products.PageTemplates.PageTemplateFile import PageTemplateFile
5: from Globals import DTMLFile
6: from ECHO_Nav import ECHO_pageTemplate
7: from threading import Thread,Timer
8: import threading
9: from ECHO_helpers import *
10: import ECHO_language
11: import sys
12: import urllib
13: import urlparse
14: from Ft.Xml.Domlette import Print, PrettyPrint
15: from StringIO import StringIO
16: from types import *
17: from Globals import package_home
18: import transaction
19:
20: import os.path
21:
22: import urllib
23:
24: try:
25: from Ft.Xml.Xslt.Processor import Processor
26: from Ft.Xml import InputSource, EMPTY_NAMESPACE,Parse
27: from Ft.Xml.Domlette import NonvalidatingReader
28: except:
29: print "4suite has to be installed"
30:
31:
32: class getXML(Implicit):
33: """get XML thread"""
34:
35: def set(self,qs,xsl,result):
36: """set"""
37:
38: self._v_qs=qs
39: self.xsl=xsl
40: self.result=None
41:
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:
58: def __call__(self):
59: """wait"""
60: return True
61:
62: def run(self):
63: """call it"""
64: xml=""
65:
66: try:
67:
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: #< xsltproc.run(document)
81: tmp=xsltproc.run(document)
82:
83: self.result=tmp[0:]
84:
85:
86: except:
87:
88: self.result="<html>error: %s %s<br>"%sys.exc_info()[0:2]
89: self.result+=xml
90: self.result+="</html>"
91:
92:
93:
94: def getResult(self):
95:
96: return self.result
97:
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:
141: return self.root[name].get(pn,None)
142:
143:
144: class ECHO_xslt(ECHO_pageTemplate,ECHO_language.ECHO_language):
145: """ECHO_xslt classe"""
146:
147: meta_type="ECHO_xslt"
148:
149: cache=ECHO_cache() # cache for analysed pages
150: caching="yes"
151:
152: appendQueryString=True # add query string to the cgiUrl can be changed with addChanges
153:
154: passURL=False #use url from querystring parameter fn to retrieve the text and not the url in cgi-url can be changed with addChanges
155:
156:
157: results={}
158: manage_options=ECHO_pageTemplate.manage_options+(
159: {'label':'Change xml-ressource','action':'change_ECHO_xsltForm'},)
160:
161: def refreshTxt(self):
162: """txt fuer refresh"""
163: return """ 2;url=%s?repeat=%s """%(self.absolute_url(),self.threadName)
164:
165: def xslt(self):
166: """xslt"""
167:
168: return self.document_src()
169:
170: def change_ECHO_xsltForm(self):
171: """change form"""
172: pt=zptFile(self, 'zpt/ChangeECHO_xsltForm.zpt')
173: return pt()
174:
175: def addChanges(self,cgiUrl,appendQueryString=False,passURL=False,caching=False,RESPONSE=None):
176: """change the xslt, ueberschriebt addChanges in ECHO_PageTemplate"""
177:
178: if urlparse.urlparse(cgiUrl)[0]=="":#relative url in absolute
179: self.cgiUrl=urlparse.urljoin(self.absolute_url(), cgiUrl)
180: else:
181: self.cgiUrl=cgiUrl
182:
183: if appendQueryString:
184: self.appendQueryString=True
185: else:
186: self.appendQueryString=False
187:
188: if passURL:
189: self.passURL=True
190: else:
191: self.passURL=False
192:
193: if caching:
194: self.caching="yes"
195: else:
196: self.caching="No"
197:
198:
199: if RESPONSE:
200: RESPONSE.redirect("manage_main")
201:
202: def index_html(self,repeat=None):
203: """standard ausgabe"""
204:
205: threadName=repeat
206:
207: if not threadName or threadName=="":
208:
209: #abwaertskompatibilitt mit altem nivht konfigurierbaren prototypen
210:
211: if getattr(self,'cgiUrl','')=='':
212: self.cgiUrl="http://medea.mpiwg-berlin.mpg.de/cgi-bin/search/q1"
213:
214: qs="%s%s"%(self.cgiUrl,self.REQUEST['QUERY_STRING'])
215: xsl=self.absolute_url()+"/xslt"
216: self._v_xmltrans=getXML().__of__(self)
217: #self._xmltrans.start()
218: thread=Thread(target=self._v_xmltrans)
219: thread.start()
220: self._v_xmltrans.set(qs,xsl,None)
221: self._v_xmltrans.run()
222:
223:
224: self.threadName=thread.getName()[0:]
225: wait_template=self.aq_parent.ZopeFind(self.aq_parent,obj_ids=['wait_template'])
226: if wait_template:
227: return wait_template[0][1]()
228: pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','xsltWait.zpt')).__of__(self)
229: return pt()
230: #_v_xmltrans.run()
231:
232: else:
233:
234: if (self._v_xmltrans.getResult()==None):
235:
236: wait_template=self.aq_parent.ZopeFind(self.aq_parent,obj_ids=['wait_template'])
237: if wait_template:
238: return wait_template[0][1]()
239:
240: pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','xsltWait.zpt')).__of__(self)
241: return pt()
242: else:
243: return self._v_xmltrans.getResult()
244:
245:
246: def getText(self):
247: """print nur den text"""
248: qs,baseUri=self.getTextInput()
249: self.REQUEST.RESPONSE.redirect(qs)
250:
251: def deleteCache(self):
252: """deletefrom cache"""
253: fn=self.REQUEST['fn']
254: self.cache.deleteObject(fn)
255:
256:
257: def createLinkNode(self,url,dom):
258: """createa a link node"""
259: txt=dom.createTextNode("<XMLLink>")
260: node=dom.createElementNS("http://test.de","a")
261: node.setAttributeNS("http://test.de","href",url)
262: node.appendChild(txt)
263: return node
264:
265: def forwardLink(self,linkid,url,type="target",RESPONSE=None):
266: """forward to link"""
267: if RESPONSE:
268: RESPONSE.redirect(self.getLink(linkid,url,type=type))
269:
270: else:
271: return self.getLink(linkid,url,type=type)
272: def getLink(self,linkid,url,type="target"):
273: """get target for linkid"""
274: dom=NonvalidatingReader.parseUri(url)
275:
276: masterurl=dom.xpath("//mpiwg:masterurl/@ref",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
277: slaveurl=dom.xpath("//mpiwg:slaveurl/@ref",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
278:
279: #check now if there are in the link file
280:
281: xp="//mpiwg:link[@id='%s']"%linkid
282:
283: if type=="target":
284: for link in dom.xpath(xp,explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'}):
285: fn=link.xpath("mpiwg:target/@filename",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
286: ref=link.xpath("mpiwg:target/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
287:
288: ref2=link.xpath("mpiwg:target/mpiwg:pagelink/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
289: selectionNodeIndex=link.xpath("mpiwg:target/mpiwg:pagelink/@selectionNodeIndex",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
290:
291: lstr=slaveurl+'fn='+fn+'&_id='+ref+'&_pagelink=%s///%s'%(ref2,selectionNodeIndex)
292: lstr+="&_links="+urllib.quote(url)+'&_linkid='+linkid+'&_linktype=target'
293:
294: else:
295: for link in dom.xpath(xp,explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'}):
296: fn=link.xpath("mpiwg:source/@filename",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
297: ref=link.xpath("mpiwg:source/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
298:
299: ref2=link.xpath("mpiwg:source/mpiwg:pagelink/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
300: selectionNodeIndex=link.xpath("mpiwg:source/mpiwg:pagelink/@selectionNodeIndex",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
301:
302: lstr=masterurl+'fn='+fn+'&_id='+ref+'&_pagelink=%s///%s'%(ref2,selectionNodeIndex)
303: lstr+="&_links="+urllib.quote(url)+'&_linkid='+linkid+'&_linktype=source'
304: return lstr
305:
306: def addLinks(self,txt,url="http://127.0.0.1:8080/HFQP/linkCreator/getCollectionXML?collection=commentary2"):
307: """add links to a page from xml linkfile"""
308:
309: dom=NonvalidatingReader.parseUri(url)
310: textDom=NonvalidatingReader.parseString(txt)
311:
312: #find ids in txt
313: ids=textDom.xpath("//*[@id]")
314: masterurl=dom.xpath("//mpiwg:masterurl/@ref",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
315: slaveurl=dom.xpath("//mpiwg:slaveurl/@ref",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
316:
317: #check now if there are in the link file
318: for textid in ids:
319: xp="//mpiwg:link[mpiwg:source/@refid='%s']"%textid.xpath("@id")[0].value
320: for link in dom.xpath(xp,explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'}):
321: fn=link.xpath("mpiwg:target/@filename",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
322: ref=link.xpath("mpiwg:target/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
323:
324: ref2=link.xpath("mpiwg:target/mpiwg:pagelink/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
325: selectionNodeIndex=link.xpath("mpiwg:target/mpiwg:pagelink/@selectionNodeIndex",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
326: linkid=link.xpath("@id")[0].value
327: lstr=slaveurl+'fn='+fn+'&_id='+ref+'&_pagelink=%s///%s'%(ref2,selectionNodeIndex)
328: lstr+="&_links="+urllib.quote(url)+'&_url='+url+'&_linkid='+linkid+'&_linktype=target'
329: node=self.createLinkNode(lstr,textDom)
330: textid.parentNode.insertBefore(node,textid)
331:
332:
333: xp="//mpiwg:link[mpiwg:target/@refid='%s']"%textid.xpath("@id")[0].value
334: for link in dom.xpath(xp,explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'}):
335: fn=link.xpath("mpiwg:source/@filename",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
336: ref=link.xpath("mpiwg:source/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
337:
338: ref2=link.xpath("mpiwg:source/mpiwg:pagelink/@refid",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
339: selectionNodeIndex=link.xpath("mpiwg:source/mpiwg:pagelink/@selectionNodeIndex",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})[0].value
340: linkid=link.xpath("@id")[0].value
341: lstr=masterurl+'fn='+fn+'&_id='+ref+'&_pagelink=%s///%s'%(ref2,selectionNodeIndex)
342: lstr+="&_links="+urllib.quote(url)+'&_linkid='+linkid+'&_linktype=source'
343:
344: node=self.createLinkNode(lstr,textDom)
345: textid.parentNode.insertBefore(node,textid)
346:
347:
348:
349: strio = StringIO()
350: PrettyPrint(textDom,strio)
351: xmlstr = strio.getvalue()
352:
353: return xmlstr
354:
355:
356:
357: def getPageLex(self,_pn="1",_id=None,_caching=None,_links=None):
358: """getpage mit lexikalischer analyse und xslt transform
359: if _caching=yes dann wird die lwxikalisch analysierte seite in einem cache abgespeichert
360: """
361:
362: if not _caching:
363: _caching=self.caching
364:
365: fn=self.REQUEST['fn']
366:
367: if not _id:
368:
369: fromCache=self.cache.retrieveObject(fn,_pn)
370:
371: if fromCache and _caching=="yes":
372:
373: txt = fromCache
374: else:
375: txt=self.tagLex(nr=_pn)
376:
377: self.cache.storeObject(fn,_pn,txt[0:])
378:
379: else:
380: txt=self.tagLex(id=_id)
381:
382: xsl=self.xslt()
383:
384: xsltproc=Processor()
385: if type(txt)==UnicodeType:
386: document = InputSource.DefaultFactory.fromString(txt.encode('utf-8'))
387: else:
388: document = InputSource.DefaultFactory.fromString(txt)
389: stylesheet = InputSource.DefaultFactory.fromString(xsl)
390: xsltproc.appendStylesheet(stylesheet)
391: tmp=xsltproc.run(document)
392:
393: if _links:
394: _links=urllib.unquote(_links)
395: tmp=self.addLinks(tmp,url=_links)
396:
397: #bugfix for digilib images which doesn't accept &
398: tmp=tmp.replace("&","&")
399:
400:
401: return tmp[0:]
402:
403: def getTextInput(self):
404: """get the text
405: wie der text geholt wird liegt an der konfiguration,
406: is appendQueryString gesetzt, dann wir jeweils der Querystring an vorgebenen url gesetzt, erwartet wird fn=
407: fr den Pfad, is passURL gesetzt, dann wird falls fn= eine vollstndige url enthlt, diese anstelle der in cgiurl definierten genommen.
408: """
409:
410: if getattr(self,'passURL',False) and self.REQUEST.has_key('fn') and (urlparse.urlparse(self.REQUEST['fn'])[0]=='http'):
411: qs=self.REQUEST['fn']
412: baseUri=qs
413: elif getattr(self,'pappendQueryString',True):
414: qs="%s%s"%(self.cgiUrl,self.REQUEST['QUERY_STRING'])
415: baseUri=self.cgiUrl
416: else:
417: qs="%s"%(self.cgiUrl)
418: baseUri=self.cgiUrl
419:
420: #fact= InputSource.DefaultFactory.fromUri(qs)
421: return qs,baseUri
422: #return InputSource.InputSource(fact)
423: #xmlt=urllib.urlopen(qs).read()
424:
425: def getPage(self,_pn="-1",_id=None,REQUEST=None,_caching=None):
426: """get a page from an xml"""
427:
428: if not _caching:
429: _caching=self.caching
430:
431: pn=int(_pn)-1
432: if pn<0 and (not _id):
433: if REQUEST:
434: return "Sorry, pagenumbers have to be greater than 0"
435: else:
436: return None
437:
438: xmlt,self.baseUri=self.getTextInput()
439:
440: #get the text from cache, if existing
441: fromCache=self.cache.retrieveObject(self.baseUri,"-1")
442: if fromCache and _caching=="yes":
443:
444: txt = fromCache
445: else:
446:
447: txt=urllib.urlopen(xmlt).read()
448:
449: self.cache.storeObject(self.baseUri,"-1",txt)
450:
451:
452: dom=NonvalidatingReader.parseString(txt,self.baseUri)
453:
454: #pb should have a namespache
455:
456: pbs=dom.xpath("//mpiwg:pb",explicitNss={'mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})
457:
458: if len(pbs)==0: # versuche nochmal ohne
459: pbs=dom.xpath("//pb")
460:
461: if _id:
462: #suche wieviele pb for der id
463:
464:
465: idpb=dom.xpath("//*[@id='%s']/preceding::node()/mpiwg:pb"%_id,explicitNss={'html':'http://test.de','mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'})
466: if len(idpb)==0:
467: idpb=dom.xpath("//*[@id='%s']/preceding::node()/pb"%_id)
468:
469: if len(idpb)==0:
470: k=0
471: for node in dom.xpath("//*[@id='%s']//preceding::node()"%_id,explicitNss={'html':'http://test.de','mpiwg':'http://www.mpiwg-berlin.mpg.de/namespace'}):
472: if getattr(node,'tagName',"")=="mpiwg:pb":
473: k+=1
474: else:
475: k=len(idpb)
476: pn=k-1 #-1 wegen Seitenzahlzaehlung startet mit 0
477:
478: if pn > len(pbs):
479: if REQUEST:
480: return "Sorry, pagenumber %s does not exit"%(pn+1)
481: else:
482: return None
483:
484: beginNode=pbs[pn] #take the n'th pb
485:
486: if not (pn==len(pbs)-1): # nicht die letzte Seite
487: endNode=pbs[pn+1]
488: else:
489: endNode=None
490:
491: deleteNodes=beginNode.xpath('preceding::node()')
492: if endNode:
493: deleteNodes+=endNode.xpath('following::node()')
494: for node in deleteNodes:
495: try:
496: parent=node.xpath("..")
497:
498: if parent:
499: parent[0].removeChild(node)
500: except:
501: zLOG.LOG("ECHO_Resource (getAccessRightMD)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
502: strio = StringIO()
503: PrettyPrint(dom,strio)
504: xmlstr = strio.getvalue()
505:
506: return xmlstr
507:
508:
509:
510: def manage_addECHO_xsltForm(self):
511: """Form for adding"""
512: pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','AddECHO_xslt.zpt')).__of__(self)
513: return pt()
514:
515: from urllib import quote
516:
517:
518: def manage_addECHO_xslt(self, id, label, weight= 0,contentType=0,title=None, text=None, cgiUrl=None,
519: REQUEST=None, submit=None):
520: "Add a Page Template with optional file content."
521:
522:
523: id = str(id)
524: if REQUEST is None:
525: self._setObject(id, ECHO_xslt(id, text))
526: ob = getattr(self, id)
527: setattr(ob,'weight',weight)
528: setattr(ob,'label',label)
529: setattr(ob,'contentType',contentType)
530: if title:
531: ob.pt_setTitle(title)
532: return ob
533: setattr(ob,'cgiUrl',cgiUrl)
534: else:
535: file = REQUEST.form.get('file')
536: headers = getattr(file, 'headers', None)
537: if headers is None or not file.filename:
538: zpt = ECHO_xslt(id)
539: else:
540: zpt = ECHO_xslt(id, file, headers.get('contentType'))
541:
542: self._setObject(id, zpt)
543: ob = getattr(self, id)
544: setattr(ob,'weight',weight)
545: setattr(ob,'label',label)
546: setattr(ob,'cgiUrl',cgiUrl)
547: if title:
548: ob.pt_setTitle(title)
549:
550: try:
551: u = self.DestinationURL()
552: except AttributeError:
553: u = REQUEST['URL1']
554:
555: if submit == " Add and Edit ":
556: u = "%s/%s" % (u, quote(id))
557: REQUEST.RESPONSE.redirect(u+'/manage_main')
558: return ''
559:
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