File:  [Repository] / ECHO_content / ECHO_helpers.py
Revision 1.28: download - view: text, annotated - select for diffs - revision graph
Mon Nov 29 17:18:13 2004 UTC (19 years, 7 months ago) by dwinter
Branches: MAIN
CVS tags: HEAD
string added

    1: import string
    2: import socket
    3: import urllib
    4: import xml.dom.minidom
    5: from types import *
    6: from Products.PageTemplates.PageTemplateFile import PageTemplateFile
    7: from Globals import package_home
    8: import os.path
    9: 
   10: displayTypes = ['ZSQLExtendFolder','ZSQLBibliography','ECHO_group','ECHO_collection','ECHO_resource','ECHO_link','ECHO_sqlElement','ECHO_pageTemplate','ECHO_externalLink','ImageCollectionIFrame','VLP_resource','VLP_essay','ECHO_ZCatalogElement','ImageCollection','versionedFileFolder']
   11: 
   12: def content_html(self,type):
   13:         """template fuer content"""
   14:         #templates = self.ZopeFind(self.aq_parent,obj_ids=[type+"_template"])
   15:         #
   16:         #if templates:
   17:         #    return templates[0][1]()
   18: 
   19:         if hasattr(self,type+"_template"):
   20:             obj=getattr(self,type+"_template")
   21:             return obj()
   22:         else:
   23:             pt=PageTemplateFile('Products/ECHO_content/zpt/ECHO_%s_template_standard.zpt'%type).__of__(self)
   24:             pt.content_type="text/html"
   25:             return pt()
   26:     
   27:     
   28: 
   29: class ECHO_basis:
   30:     """basis eigenschaften fuer echo objekte"""
   31:     def showRDF(self):
   32: 	    """showrdf"""
   33:             self.REQUEST.RESPONSE.setHeader('Content-Type','text/xml')
   34: 	    ret="""<?xml version="1.0" encoding="utf-8"?>\n<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"  xmlns:ECHONAVIGATION="http://www.echo.eu/rdf#">\n"""
   35: 	    ret+=self.getRDF(urn="echo:colllectionroot")+"\n"
   36: 
   37: 	    ret+="""</RDF:RDF>"""
   38:     	    return ret 
   39: 
   40:   
   41: 
   42:     def createSubElementRDF(self,urn=None):
   43: 	    """rdf list"""
   44: 	    if not urn:
   45: 		    urn=self.absolute_url()
   46: 	    ret=""
   47: 
   48: 	    rettemp="""<RDF:Seq RDF:about="%s">\n"""%urn
   49: 	    flag=0
   50: 	    
   51: 	    li="""<RDF:li RDF:resource="%s" />\n"""
   52: 	    if not ('<error>' in self.getFullTextXML(noredirect='Yes')):
   53: 		    nurn=self.absolute_url()+'/getFullTextXML'
   54: 		    rettemp+=li%nurn
   55: 		    flag=1
   56: 	    if not ('<error>' in self.getImageView(noredirect='Yes')):
   57: 		    nurn=self.absolute_url()+'/getImageView'
   58: 		    rettemp+=li%nurn
   59: 		    flag=1
   60: 
   61: 
   62: 	    if not ('<error>' in self.showMetaDataXML()):
   63: 		    nurn=self.absolute_url()+'/showMetaDataXML'
   64: 		    rettemp+=li%nurn
   65: 		    flag=1
   66: 		    
   67: 	    rettemp+="</RDF:Seq>"
   68: 
   69: 	    if flag==1:
   70: 		    ret+=rettemp
   71: 		    
   72: 	    if not ('<error>' in self.getFullTextXML(noredirect='Yes')):
   73:                     nurn=self.absolute_url()+'/getFullTextXML'	
   74: 		    ret+=getRDFDescription(self,self.absolute_url()+'/getFullTextXML',urn=nurn,nameDef="Fulltext",typeName="ECHO_fulltext")
   75: 
   76: 	    if not ('<error>' in self.getImageView(noredirect='Yes')):
   77:                     nurn=self.absolute_url()+'/getImageView'
   78: 		    ret+=getRDFDescription(self,self.absolute_url()+'/getImageView',urn=nurn,nameDef="Image View",typeName="ECHO_imageview")
   79: 		    
   80: 	    if not ('<error>' in self.showMetaDataXML()):
   81:                     nurn=self.absolute_url()+'/showMetaDataXML'
   82: 		    ret+=getRDFDescription(self,self.absolute_url()+'/showMetaDataXML',urn=nurn,nameDef="Metadata",typeName="ECHO_metaData")
   83: 
   84: 	    return ret
   85: 	    
   86:     def content_html(self,type="collection"):
   87: 	    """template fuer content bei einbau und ECHO_Umgebung"""
   88: 	    
   89: 	    return content_html(self,type)
   90:         
   91:     def getTitle(self):
   92: 	"""title"""
   93: 	try:
   94: 		return self.title.encode('utf-8','ignore') 
   95: 	except:
   96: 		self.title=self.title.decode('iso-8859-1','ignore')[0:] #correnct conding error
   97: 		return self.title.encode('utf-8','ignore') 
   98: 	
   99:     def getLabel(self):
  100: 	"""title"""
  101: 	try:
  102: 		return self.label.encode('utf-8','ignore') 
  103: 	except:
  104: 		self.label=self.label.decode('iso-8859-1','ignore')[0:] #correnct conding error
  105: 		return self.label.encode('utf-8','ignore') 
  106: 	
  107:     
  108:     def changeECHOEntriesForm(self):
  109:         """change Entries for the ECHO Navigation environment"""
  110:         pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','changeECHOEntriesForm')).__of__(self)
  111:         return pt()
  112:     
  113:     def changeECHOEntries(self,label,weight,description,queryString,RESPONSE=None):
  114:         """change Entries for the ECHO Navigation environment
  115:         @param label: label fuer die Navigation"""
  116:         self.label=label
  117:         self.weight=weight
  118:         self.description=description
  119: 	self.queryString=queryString
  120:         
  121:         if RESPONSE:
  122:             RESPONSE.redirect("manage_main")
  123: 
  124:     manage_options=({'label':'change ECHO Navigation Entries','action':'changeECHOEntriesForm'},)
  125: 
  126:     #ende der echo erweiterungen
  127: 
  128: 
  129: def toList(field):
  130:     """Einzelfeld in Liste umwandeln"""
  131:     if type(field)==StringType:
  132:         return [field]
  133:     else:
  134:         return field
  135: 
  136: def getText(nodelist):
  137: 
  138:     rc = ""
  139:     for node in nodelist:
  140:     	if node.nodeType == node.TEXT_NODE:
  141:            rc = rc + node.data
  142:     return rc
  143: 
  144: def getTextFromNode(nodename):
  145:     nodelist=nodename.childNodes
  146:     rc = ""
  147:     for node in nodelist:
  148:     	if node.nodeType == node.TEXT_NODE:
  149:            rc = rc + node.data
  150:     return rc
  151: 
  152: 
  153: def readFieldFromXML(meta_url,parent,field):
  154: 	"""lesespezifisches metadatum"""
  155: 	
  156: 	try:
  157: 		dom=xml.dom.minidom.parse(meta_url)
  158: 
  159: 	except:
  160: 		try:
  161: 			fh=urllib.urlopen(meta_url)
  162: 			dom=xml.dom.minidom.parse(fh)
  163: 	        except:
  164: 			return None
  165: 	if not dom: return None
  166: 
  167: 	parent=dom.getElementsByTagName(parent)
  168: 	if not parent: return None
  169: 
  170: 	field=parent[0].getElementsByTagName(field)
  171: 
  172: 	if not field: return None
  173: 
  174: 	return getText(field[0].childNodes)
  175: 	
  176: 	
  177: 	      
  178: def urlopen(url):
  179: 	"""urlopen mit timeout"""
  180: 	socket.setdefaulttimeout(2)
  181: 	ret=urllib.urlopen(url)
  182: 	socket.setdefaulttimeout(5)
  183: 	return ret
  184: #	urlopener = urllib.URLopener()
  185: #
  186: #	try:		
  187: #		con = urlopener.open(url)
  188: #		return con
  189: #	except timeoutsocket.Timeout:
  190: #		return None
  191: 
  192: 
  193: 
  194: 
  195: 
  196: def checkOnlyOneInGroup(object): 
  197: 	"""check if object is a group and if it containt only one element it return this element"""
  198: 	displayedObjects=object.ZopeFind(object,obj_metatypes=displayTypes)
  199: 	if len(displayedObjects)==1: # nur ein Object dann redirect auf dieses Object
  200: 
  201: 		return displayedObjects[0][1]
  202: 	else:		return object
  203: 
  204: def getSubCols(self,sortfield="weight",subColTypes= displayTypes,sortFieldMD=None):
  205: 
  206: 	def sortfnc(sortfield,x,y):
  207: 		xa=x[1].getMDValue(sortfield)
  208: 		ya=y[1].getMDValue(sortfield)
  209: 		print xa,ya
  210: 		return cmp(xa,ya)
  211: 	
  212: 	sortWithMD = lambda sortfield : (lambda x,y : sortfnc(sortfield,x,y))
  213:         ids=[]
  214: 	displayedObjects=self.ZopeFind(self,obj_metatypes=subColTypes)
  215: 	
  216: 	
  217: 	for entry in displayedObjects:
  218:             
  219:             object=entry[1]
  220:             ids.append(object)
  221: 
  222:         try:
  223:             sortfield=self.sortfield
  224:         except:
  225:             """nothing"""
  226:             
  227:         tmplist=[]
  228:         for x in ids:
  229:             if hasattr(x,sortfield):
  230:                 try:
  231: 
  232:                     x=int(x)
  233:                 except:
  234:                     """nothing"""
  235:                 tmp=getattr(x,sortfield)
  236:             else:
  237:                 tmp=10000000
  238:             tmplist.append((tmp,x))
  239: 
  240: 	if not sortFieldMD:
  241: 		tmplist.sort()
  242: 	else:
  243: 		tmplist.sort(sortWithMD(sortFieldMD))
  244: 		
  245:         return [x for (key,x) in tmplist]
  246: 
  247: def ECHO_rerenderLinksMD(self,obj=None,types=['title','label']):
  248:         """Rerender all Links"""
  249: 	ret=""
  250: 	
  251:         if not obj:
  252:             obj = self
  253:             
  254:         entries=obj.ZopeFind(obj,obj_metatypes=['ECHO_resource'],search_sub=1)
  255: 
  256:         for entry in entries:
  257: 		if entry[1].meta_type == 'ECHO_resource':
  258: 			try:
  259: 				entry[1].ECHO_getResourceMD(template="no")
  260:                                 if "title" in types:
  261:                                     entry[1].generate_title()
  262:                                 if "label" in types:
  263:                                     entry[1].generate_label()
  264: 				ret+="OK:"+entry[0]+"-- "+entry[1].getTitle().decode('utf-8')+"-- "+entry[1].getTitle().decode('utf-8')+"<br>"
  265: 			except:
  266: 				ret+="Error:"+entry[0]+"<br>"
  267: 
  268: 		
  269:                 
  270:                 
  271:         return "<html><body>"+ret+"Rerenderd all links to resources in: "+self.title+"</html></body>"
  272: 
  273: def reloadMetaDataFromStorage(self,RESPONSE=None):
  274: 	    """copy metadata from the storage to ECHO"""
  275: 	    ret=""
  276: 	    resources=self.ZopeFind(self,obj_metatypes=['ECHO_resource'],search_sub=1)
  277: 
  278: 	    for resource in resources:
  279: 		    x=str(resource[1].copyIndex_meta2echo_resource())+"<br>"
  280: 		    ret+=x
  281: 		    #print x
  282: 		    
  283: 
  284: 	    if RESPONSE is not None:
  285: 		    #RESPONSE.redirect('./manage_main')
  286: 		    return "<html><body>"+ret+"</html></body>"
  287: 
  288: 	    return ret
  289:     
  290: def getRDFDescription(self,linkURL,urn=None,nameDef=None,typeName=None):
  291: 	    """rdf"""
  292: 	    
  293: 	    ret=""
  294: 	    about="""<RDF:Description RDF:about="%s">"""
  295: 	    name="""<ECHONAVIGATION:name>%s</ECHONAVIGATION:name>"""
  296: 	    link="""<ECHONAVIGATION:link xlink:href="%s">%s</ECHONAVIGATION:link>"""
  297: 	    clickable="""<ECHONAVIGATION:linkClickable>%s</ECHONAVIGATION:linkClickable>"""
  298: 	    #link="""<ECHONAVIGATION:link RDF:about="%s"/>"""
  299: 	    type="""<ECHONAVIGATION:type>%s</ECHONAVIGATION:type>"""
  300:             #xlink="""<ECHONAVIGATION:xlink xlink:href="%s"/>"""	
  301: 	    if not urn:
  302: 		    #urn="urn:"+re.sub('/',':',self.absolute_url())
  303: 		    urn=self.absolute_url()
  304: 	    about2=about%urn
  305: 	    if not nameDef:
  306: 		    if hasattr(self,'label') and not (self.label==""):
  307: 			    name2=name%self.label
  308: 		    elif not self.title=="":
  309: 			    name2=name%self.title
  310: 		    else:
  311: 			    name2=name%self.getId()
  312: 
  313: 		    name2=re.sub('&','&amp;',name2)
  314: 	    else:
  315: 		    name2=name%nameDef
  316: 
  317: 	    linkURL=re.sub('http:','',linkURL)
  318: 	    linkURL2=re.sub('&','&amp;',linkURL)
  319: 	    link2=link%(("http:"+linkURL2),("http:"+urllib.quote(linkURL)))
  320: 	    clickable2=clickable%"true"
  321: 
  322: 	    if not typeName:
  323: 		    type2=type%self.meta_type
  324: 	    else:
  325: 		    type2=type%typeName
  326: 	    
  327: 	    #ret=about2+"\n"+name2+"\n"+link2+"\n"+type2+"\n"+clickable2+"\n</RDF:Description>"
  328: 	    ret=about2+"\n"+name2+"\n"+type2+"\n"+clickable2+"\n</RDF:Description>"
  329: 	    return ret
  330:     
  331: def getCopyrightsFromForm(self,argv): 
  332: 	medias={}
  333: 	partners={}
  334: 	copyrights={}
  335: 	
  336: 	copyrightsFinal=[]
  337: 	for arg in argv.keys():
  338: 		
  339: 		if arg[0:5]=='media':
  340: 			nm=int(arg[5:])
  341: 			medias[nm]=argv[arg]
  342: 		elif arg[0:5]=='partn':
  343: 			nm=int(arg[5:])
  344: 			partners[nm]=argv[arg]
  345: 		elif arg[0:5]=='copyr':
  346: 			nm=int(arg[5:])
  347: 			copyrights[nm]=argv[arg]
  348: 
  349: 
  350: 
  351: 	copyrightsList=[(medias[nm],partners[nm],copyrights[nm]) for nm in medias.keys()]
  352: 	for copyright in copyrightsList:
  353: 		
  354: 		if copyright[2]=='institution0000':
  355: 			copyrightsFinal.append((copyright[0],copyright[1],self.getPartnerCopyright(copyright[1],'')))
  356: 		else:
  357: 			if not copyright[0]=='':
  358: 				copyrightsFinal.append(copyright)
  359: 		
  360: 			
  361: 	return copyrightsFinal
  362: 
  363: #List of different types for the graphical linking viewer
  364: viewClassificationListMaster=['view point','area']
  365: 
  366: 
  367: def checkDiffs(self,metadict):
  368: 	    """check differences"""
  369: 
  370: 	    
  371: 
  372:     
  373: 	    def NoneToEmpty(obj):
  374: 		    if obj:
  375: 			    return obj
  376: 		    else:
  377: 			    return ""
  378: 
  379: 	    
  380: 	    
  381: 	    diffs={}
  382: 	    
  383: 	    tags=self.findTagsFromMapping(self.contentType)
  384: 	    self.referencetypes=tags[2]
  385: 	    self.fields=tags[3]
  386: 	    
  387:     
  388: 	    for field in tags[1]:
  389: 		    try:
  390: 			    if (NoneToEmpty(self.getFieldValue(self.getFieldTag(tags,field)))==metadict[self.getFieldTag(tags,field)]):
  391: 				    diffs[self.getFieldTag(tags,field)]=1
  392: 			    else:
  393: 				    
  394: 				    diffs[self.getFieldTag(tags,field)]=0
  395: 		    except:
  396: 			    diffs[self.getFieldTag(tags,field)]=0
  397: 			    
  398: 	    return diffs
  399:     
  400: 
  401: 
  402: 
  403: def sendFile(self, filename, type):
  404:     """sends an object or a local file (in the product) as response"""
  405:     paths = filename.split('/')
  406:     object = self
  407:     # look for an object called filename
  408:     for path in paths:
  409:         if hasattr(object, path):
  410: 	    object = getattr(object, path)
  411: 	else:
  412: 	    object = None
  413: 	    break
  414:     if object:
  415: 	# if the object exists then send it
  416: 	return object.index_html(self.REQUEST.REQUEST, self.REQUEST.RESPONSE)
  417:     else:
  418: 	# send a local file with the given content-type
  419: 	fn = os.path.join(package_home(globals()), filename)
  420: 	self.REQUEST.RESPONSE.setHeader("Content-Type", type)
  421: 	self.REQUEST.RESPONSE.write(file(fn).read())
  422:     return
  423: 
  424: class BrowserCheck:
  425:     """check the browsers request to find out the browser type"""
  426:     
  427:     def __init__(self, zope):
  428:         """initialisiere"""
  429: 	self.ua = zope.REQUEST.get_header("HTTP_USER_AGENT")
  430: 	self.isN4 = (string.find(self.ua, 'Mozilla/4.') > -1) and (string.find(self.ua, 'MSIE') < 0)
  431: 	self.isIE = string.find(self.ua, 'MSIE') > -1
  432: 	self.nav = self.ua[string.find(self.ua, '('):]
  433: 	ie = string.split(self.nav, "; ")[1]
  434: 	if string.find(ie, "MSIE") > -1:
  435: 	    self.versIE = string.split(ie, " ")[1]
  436: 	self.isMac = string.find(self.ua, 'Macintosh') > -1
  437: 	self.isWin = string.find(self.ua, 'Windows') > -1
  438: 	self.isIEWin = self.isIE and self.isWin
  439: 	self.isIEMac = self.isIE and self.isMac
  440: 
  441: 		
  442: 		
  443: def writeMetadata(url,metadict,project=None,startpage=None,xslt=None,thumbtemplate=None,topbar=None,digiLibTemplate=None,xmlfrag=None,digiliburlprefix=None):
  444: 	"""Einlesen der Metadaten und und erstellen des geaenderten XML file"""
  445: 
  446: 	def updateTextToolNode(tag,value):
  447: 		#print dom,tag,value
  448: 		metanode=dom.getElementsByTagName('texttool')[0]
  449: 		try:
  450: 			nodeOld=metanode.getElementsByTagName(tag)
  451: 		except:
  452: 			nodeOld=None
  453: 			
  454: 		if nodeOld:
  455: 			metanode.removeChild(nodeOld[0]).unlink()
  456: 
  457: 		node=dom.createElement(tag)
  458: 		nodetext=dom.createTextNode(value)
  459: 		node.appendChild(nodetext)
  460: 		metanode.appendChild(node)
  461: 
  462: 	if xmlfrag:
  463: 		geturl="""<?xml version="1.0" ?>
  464:                            <resource type="MPIWG">
  465: 			   <meta>
  466: 			    <bib type="Book">
  467: 	                    </bib>
  468: 			    </meta>
  469: 			    </resource>"""
  470: 		dom=xml.dom.minidom.parseString(geturl)
  471: 	else:
  472: 		try:
  473: 			geturl=""
  474: 			for line in ECHO_helpers.urlopen(url).readlines():
  475: 				geturl=geturl+line
  476: 
  477: 
  478: 		except:
  479: 			return (None,"Cannot open: "+url)
  480: 
  481: 		try:
  482: 			dom=xml.dom.minidom.parseString(geturl)
  483: 		except:
  484: 			return (None,"Cannot parse: "+url+"<br>"+geturl)
  485: 
  486: 	
  487: 
  488: 	metanodes=dom.getElementsByTagName('bib')
  489: 
  490: 	if not metanodes:
  491: 		metanodes=dom.getElementsByTagName('archimedes')
  492: 
  493: 	metanode=metanodes[0]
  494: 
  495: 	for metaData in metadict.keys():
  496: 		
  497: 		try:
  498: 			nodeOld=metanode.getElementsByTagName(metaData)
  499: 		except:
  500: 			nodeOld=None
  501: 			
  502: 		if nodeOld:
  503: 			metanode.removeChild(nodeOld[0]).unlink()
  504: 		else:
  505: 			# try also old writing rule - instead of _:
  506: 			try:
  507: 				nodeOld=metanode.getElementsByTagName(re.sub('_','-',metaData))
  508: 			except:
  509: 				nodeOld=None
  510: 				
  511: 			if nodeOld:
  512: 				metanode.removeChild(nodeOld[0]).unlink()
  513: 
  514: 		metanodeneu=dom.createElement(metaData)
  515:                 metanodetext=dom.createTextNode(metadict[metaData])
  516: 		#try:
  517: 			#metanodetext=dom.createTextNode(unicode(metadict[metaData],"utf-8"))
  518: 		#except:
  519: 			#metanodetext=dom.createTextNode(metadict[metaData].encode('utf-8'))
  520: 		metanodeneu.appendChild(metanodetext)
  521: 		metanode.appendChild(metanodeneu)
  522: 
  523: 
  524: 	
  525: 	
  526: 	
  527: 	if project:
  528: 		updateTextToolNode('project',project)
  529: 
  530: 	if startpage:
  531: 		updateTextToolNode('startpage',startpage)
  532: 
  533: 	if topbar:
  534: 		updateTextToolNode('toptemplate',topbar)
  535: 
  536: 	if thumbtemplate:
  537: 		updateTextToolNode('thumbtemplate',thumbtemplate)
  538: 
  539: 	if xslt:
  540: 		updateTextToolNode('xslt',xslt)
  541: 
  542: 	
  543: 	if digiliburlprefix:
  544: 		updateTextToolNode('digiliburlprefix',digiliburlprefix)
  545: 	
  546:         try:	
  547: 	 return dom.toxml().encode('utf-8')
  548: 	except:
  549: 	 return dom.toxml('utf-8')
  550: 
  551: 	
  552: 	
  553: def readMetadata(url):
  554:     """Methode zum Auslesen der Metadateninformation zu einer Resource
  555:     Vorerst noch Typ bib"""
  556:     
  557:     metadict={}
  558:     try:
  559:         geturl=""
  560:         for line in ECHO_helpers.urlopen(url).readlines():
  561:             geturl=geturl+line
  562:         
  563:         
  564:     except:
  565:         return (None,"Cannot open: "+url)
  566: 
  567:     try:
  568:         dom=xml.dom.minidom.parseString(geturl)
  569:     except:
  570:         return (None,"Cannot parse: "+url+"<br>"+geturl)
  571: 
  572:     metanode=dom.getElementsByTagName('bib')
  573:     metadict['bib_type']='Book'
  574:     if len(metanode)==0:
  575:         metanode=dom.getElementsByTagName('archimedes')
  576:         metadict['bib_type']='Archimedes'
  577:         
  578:         
  579:     if not len(metanode)==0:    
  580:         metacontent=metanode[0].childNodes
  581:     
  582:         try:
  583:             metadict['bib_type']=getText(dom.getElementsByTagName('bib')[0].attributes['type'].childNodes)
  584:         except:
  585:             """nothing"""
  586:         
  587:         for node in metacontent:
  588:             try:
  589: 		    #print urllib.unquote(getText(node.childNodes)),getText(node.childNodes)
  590: 		    metadict[re.sub('-','_',node.tagName.lower())]=urllib.unquote(getText(node.childNodes))
  591:             except:
  592:                 """nothing"""
  593: 
  594: 
  595:     return metadict,""
  596:     

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>