File:  [Repository] / ECHO_content / ECHO_helpers.py
Revision 1.38: download - view: text, annotated - select for diffs - revision graph
Thu Feb 3 11:34:00 2005 UTC (19 years, 5 months ago) by dwinter
Branches: MAIN
CVS tags: HEAD

getmd fixed

    1: import re
    2: import string
    3: import socket
    4: import urllib
    5: import string
    6: import xml.dom.minidom
    7: import types
    8: from Products.PageTemplates.PageTemplateFile import PageTemplateFile
    9: from OFS.SimpleItem import SimpleItem
   10: from Globals import package_home
   11: import Globals
   12: from AccessControl import ClassSecurityInfo
   13: import os.path
   14: 
   15: 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']
   16: 
   17: def content_html(self,type):
   18:         """template fuer content"""
   19:         #templates = self.ZopeFind(self.aq_parent,obj_ids=[type+"_template"])
   20:         #
   21:         #if templates:
   22:         #    return templates[0][1]()
   23: 
   24:         if hasattr(self,type+"_template"):
   25:             obj=getattr(self,type+"_template")
   26:             return obj()
   27:         else:
   28:             pt=PageTemplateFile('Products/ECHO_content/zpt/ECHO_%s_template_standard.zpt'%type).__of__(self)
   29:             pt.content_type="text/html"
   30:             return pt()
   31:     
   32:     
   33: 
   34: class ECHO_basis:
   35:     """basis eigenschaften fuer echo objekte"""
   36:     def showRDF(self):
   37: 	    """showrdf"""
   38:             self.REQUEST.RESPONSE.setHeader('Content-Type','text/xml')
   39: 	    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"""
   40: 
   41: 	    ret+=self.getRDF(urn="echo:collectionroot")+"\n"
   42: 
   43: 
   44: 	    ret+="""</RDF:RDF>"""
   45:     	    return ret 
   46: 
   47:   
   48: 
   49:     def createSubElementRDF(self,urn=None):
   50: 	    """rdf list"""
   51: 	    if not urn:
   52: 		    urn=self.absolute_url()
   53: 	    ret=""
   54: 
   55: 	    rettemp="""<RDF:Seq RDF:about="%s">\n"""%urn
   56: 	    flag=0
   57: 	    
   58: 	    li="""<RDF:li RDF:resource="%s" />\n"""
   59: 	    if not ('<error>' in self.getFullTextXML(noredirect='Yes')):
   60: 		    nurn=self.absolute_url()+'/getFullTextXML'
   61: 		    rettemp+=li%nurn
   62: 		    flag=1
   63: 	    if not ('<error>' in self.getImageView(noredirect='Yes')):
   64: 		    nurn=self.absolute_url()+'/getImageView'
   65: 		    rettemp+=li%nurn
   66: 		    flag=1
   67: 
   68: 
   69: 	    if not ('<error>' in self.showMetaDataXML()):
   70: 		    nurn=self.absolute_url()+'/showMetaDataXML'
   71: 		    rettemp+=li%nurn
   72: 		    flag=1
   73: 		    
   74: 	    rettemp+="</RDF:Seq>"
   75: 
   76: 	    if flag==1:
   77: 		    ret+=rettemp
   78: 		    
   79: 	    if not ('<error>' in self.getFullTextXML(noredirect='Yes')):
   80:                     nurn=self.absolute_url()+'/getFullTextXML'	
   81: 		    ret+=getRDFDescription(self,self.absolute_url()+'/getFullTextXML',urn=nurn,nameDef="Fulltext",typeName="ECHO_fulltext")
   82: 
   83: 	    if not ('<error>' in self.getImageView(noredirect='Yes')):
   84:                     nurn=self.absolute_url()+'/getImageView'
   85: 		    ret+=getRDFDescription(self,self.absolute_url()+'/getImageView',urn=nurn,nameDef="Image View",typeName="ECHO_imageview")
   86: 		    
   87: 	    if not ('<error>' in self.showMetaDataXML()):
   88:                     nurn=self.absolute_url()+'/showMetaDataXML'
   89: 		    ret+=getRDFDescription(self,self.absolute_url()+'/showMetaDataXML',urn=nurn,nameDef="Metadata",typeName="ECHO_metaData")
   90: 
   91: 	    return ret
   92: 	    
   93:     def content_html(self,type="collection"):
   94: 	    """template fuer content bei einbau und ECHO_Umgebung"""
   95: 	    
   96: 	    return content_html(self,type)
   97:         
   98:     def getTitle(self):
   99: 	"""title"""
  100: 	return self.decode(self.title)
  101: 	try:
  102: 		return self.title.encode('utf-8','ignore') 
  103: 	except:
  104: 		self.title=self.title.decode('iso-8859-1','ignore')[0:] #correnct conding error
  105: 		return self.title.encode('utf-8','ignore') 
  106: 	
  107:     def getLabel(self):
  108: 	"""title"""
  109: 
  110: 	return self.decode(self.label)
  111: 	try:
  112: 		return self.label.encode('utf-8','ignore') 
  113: 	except:
  114: 		self.label=self.label.decode('iso-8859-1','ignore')[0:] #correnct conding error
  115: 		return self.label.encode('utf-8','ignore') 
  116: 	
  117:     
  118:     def changeECHOEntriesForm(self):
  119:         """change Entries for the ECHO Navigation environment"""
  120:         pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','changeECHOEntriesForm')).__of__(self)
  121:         return pt()
  122:     
  123:     def changeECHOEntries(self,label,weight,description,queryString,RESPONSE=None):
  124:         """change Entries for the ECHO Navigation environment
  125:         @param label: label fuer die Navigation"""
  126:         self.label=label
  127:         self.weight=weight
  128:         self.description=description
  129: 	self.queryString=queryString
  130:         
  131:         if RESPONSE:
  132:             RESPONSE.redirect("manage_main")
  133: 
  134:     manage_options=({'label':'change ECHO Navigation Entries','action':'changeECHOEntriesForm'},)
  135: 
  136: 
  137:     def hasOverview(self):
  138:         """returns if there is an overview graphics"""
  139: 	return hasattr(self, 'overview')
  140: 
  141:     def hasParentOverview(self):
  142:         """returns if the parent has an overview graphics"""
  143: 	return hasattr(self.aq_parent, 'overview')
  144: 
  145:     def getOverview(self):
  146:         """map overview graphics"""
  147:         #return self.aq_parent.ZopeFind(self.aq_parent,obj_ids=['overview'])[0][1]
  148: 	if self.hasOverview():
  149: 	    return getattr(self, 'overview')
  150: 	return None
  151: 
  152:     def getMapAreas(self):
  153:         """returns the list of MapAreas"""
  154: 	# get all contained MapAreas
  155:         areas = [res[1] for res in self.ZopeFind(self, obj_metatypes=('MapArea'))]
  156: 	return areas
  157: 
  158:     def addMapArea(self, newarea):
  159: 	"""add a map area to this object"""
  160: 	if (newarea.id is None):
  161: 	    # create new id
  162: 	    areas = self.getMapAreas()
  163: 	    newarea.id = "a%02d"%len(areas)
  164: 	self._setObject(newarea.id, newarea)
  165: 
  166:     def ECHO_graphicEntry(self):
  167:         """change map coordinates"""
  168:         if self.hasParentOverview():
  169:             pt=zptFile(self, 'zpt/ECHO_draw.zpt')
  170:             return pt()
  171:         else:
  172:             return "NO OVERVIEW GRAPHICS"
  173: 
  174:     def ECHO_addCoords(self,RESPONSE=None):
  175:         """change or add MapArea"""
  176: 	#return self.REQUEST
  177: 	# change existing areas
  178: 	for area in self.getMapAreas():
  179: 	    id = area.getId()
  180: 	    if self.REQUEST.has_key('del.'+id):
  181: 		# delete this area
  182: 		self._delObject(id)
  183: 		# return to same menu
  184: 		if RESPONSE is not None:
  185: 		    RESPONSE.redirect('ECHO_graphicEntry')
  186: 		return
  187: 	    # modify this area
  188: 	    coordstring = self.REQUEST.get('coords.'+id, '')
  189: 	    coords = string.split(coordstring, ',')
  190: 	    angle = self.REQUEST.get('angle.'+id, '0')
  191: 	    type = self.REQUEST.get('type.'+id, 'area')
  192: 	    if len(coords) == 4:
  193: 		area.setCoordString(coordstring)
  194: 		area.setAngle(angle)
  195: 		area.setType(type)
  196: 	# add new area
  197: 	if self.REQUEST.has_key('add'):
  198: 	    coordstring = self.REQUEST.get('coords.new', '')
  199: 	    coords = string.split(coordstring, ',')
  200: 	    angle = self.REQUEST.get('angle.new', '0')
  201: 	    type = self.REQUEST.get('type.new', 'area')
  202: 	    if len(coords) == 4:
  203: 		coords.append(angle)
  204: 		area = MapArea(None, coords, type=type)
  205: 		self.addMapArea(area)
  206: 	# return to edit area menu
  207: 	if RESPONSE is not None:
  208: 	    RESPONSE.redirect('ECHO_graphicEntry')
  209: 
  210:     def createJSAreas(self, areas):
  211:         """create area calls for JavaScript"""
  212:         dynamical="\n"
  213:         for ob in areas:
  214: 	    if ob.isTypeArrow():
  215: 	        dynamical+="""addArea('%s', 'overview', %s, 'arrow');\n"""%(ob.getFullId(),ob.getCoordString())
  216: 	    else:
  217: 	        dynamical+="""addArea('%s', 'overview', %s, 'area');\n"""%(ob.getFullId(),ob.getCoordString())
  218:         return dynamical
  219: 
  220:     def createMapHead(self):
  221:         """create javascript include and script tags for head"""
  222:         pt=zptFile(self, 'zpt/ECHO_content_map_frag_js')
  223:         return pt()
  224: 
  225:     def createMapImg(self):
  226: 	"""generate img-tag for map"""
  227: 	bt = BrowserCheck(self)
  228: 	tag = ""
  229: 	src = self.getOverview().absolute_url()
  230: 	if bt.isN4:
  231: 	    # N4 needs ilayer to create an id
  232: 	    tag += '<ilayer id="overview" visibility="show"><img src="%s"></ilayer>'%src
  233: 	else:
  234: 	    # img with id
  235: 	    tag += '<img id="overview" src="%s" />'%src
  236: 	return tag
  237:         
  238:     def createParentMapImg(self):
  239: 	"""generate img-tag for map of parent"""
  240: 	return self.aq_parent.createMapImg()
  241: 
  242:     def createMapLink(self, ob, text=None):
  243: 	"""generate map link"""
  244: 	bt = BrowserCheck(self)
  245: 	id = ob.getFullId()
  246: 	link = ob.getLinkId()
  247: 	if text is None:
  248: 	    text = ob.getLabel()
  249: 	if text is None:
  250: 	    text = "link"
  251: 	tiptext = ob.getText()
  252: 	tag = ""
  253: 	if bt.isN4:
  254: 	    # N4 needs layer for highlighting
  255: 	    tag += '<ilayer id="a.%s"><a onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank"'%(id,id,id,link)
  256: 	    tag += ">" + text + "</a></ilayer>"
  257: 	else:
  258: 	    # a-element
  259: 	    tag = '<a id="a.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank"'%(id,id,id,link)
  260: 	    if tiptext:
  261: 		tag += ' title="%s"'%tiptext
  262: 	    tag += ">" + text + "</a>"
  263: 	return tag
  264: 
  265:     def createMapAux(self, ob, arrowsrc="http://nausikaa2.rz-berlin.mpg.de/digitallibrary/servlet/Scaler/?dw=15&fn=icons/pfeil"):
  266: 	"""generate map link image, text and other stuff"""
  267: 	bt = BrowserCheck(self)
  268: 	id = ob.getFullId()
  269: 	link = ob.getLinkId()
  270: 	tiptext = ob.getText()
  271: 	tag = ""
  272: 
  273: 	if bt.isN4:
  274: 	    # N4 needs layer and img elements
  275: 	    tag += '<layer id="i.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)">'%(id,id,id)
  276: 	    if ob.isTypeArrow():
  277: 	        rot = ob.angle
  278: 		tag += '<a href="%s"><img border="0" src="%s&rot=%s" /></a>'%(link,arrowsrc,rot)
  279: 	    else:
  280: 		tag += '<a href="%s"><img border="0" width="1000" height="1000" src="trans_img"'%(link)
  281: 		if tiptext:
  282: 		    tag += ' alt="%s"'%tiptext
  283: 		tag += ' /></a>'
  284: 	    tag += '</layer>'
  285: 	else:
  286: 	    # create a-element
  287: 	    tag = '<a id="b.%s" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="_blank">'%(id,id,id,link)
  288: 	    if ob.isTypeArrow():
  289: 		rot = ob.angle
  290: 		if bt.isIEWin and bt.versIE > 5:
  291: 		    # IE/Win 5.5 has "feature" for PNG transparency
  292: 		    tag += '<span id="i.%s" style="position:absolute; top:-100px; left:-100px; border-style:none; border-width=1px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'%s&rot=%s\');"><img style="visibility:hidden" src="%s&rot=%s" /></span>'%(id,arrowsrc,rot,arrowsrc,rot)
  293: 		else:
  294: 		    # arrow image
  295: 		    tag += '<img id="i.%s" src="%s&rot=%s" border="1" style="position:absolute; top:-100px; left:-100px; border-style:none;" />'%(id,arrowsrc,rot)
  296: 	    else:
  297: 		if bt.isIE:
  298: 		    # IE needs transparent img for area
  299: 		    tag += '<img id="i.%s" border="0" style="position:absolute; top:-100px; left:-100px;" src="trans_img"'%(id)
  300: 		    if tiptext:
  301: 			tag += ' title="%s"'%tiptext
  302: 		    tag += " />"
  303: 		else:
  304: 		    # div for area
  305: 		    tag += '<div id="i.%s" style="position:absolute; top:-100px; left:-100px;"'%(id)
  306: 		    if tiptext:
  307: 			tag += ' title="%s"'%tiptext
  308: 		    tag += '> </div>'
  309: 	    tag += '</a>'
  310: 	return tag
  311: 
  312: 
  313:     #ende der echo erweiterungen
  314: 
  315: 
  316: def toList(field):
  317:     """Einzelfeld in Liste umwandeln"""
  318:     if type(field)==types.StringType:
  319:         return [field]
  320:     else:
  321:         return field
  322: 
  323: def getText(nodelist):
  324: 
  325:     rc = ""
  326:     for node in nodelist:
  327:     	if node.nodeType == node.TEXT_NODE:
  328:            rc = rc + node.data
  329:     return rc
  330: 
  331: def getTextFromNode(nodename):
  332:     nodelist=nodename.childNodes
  333:     rc = ""
  334:     for node in nodelist:
  335:     	if node.nodeType == node.TEXT_NODE:
  336:            rc = rc + node.data
  337:     return rc
  338: 
  339: 
  340: def readFieldFromXML(meta_url,parent,field):
  341: 	"""lesespezifisches metadatum"""
  342: 	
  343: 	try:
  344: 		dom=xml.dom.minidom.parse(meta_url)
  345: 
  346: 	except:
  347: 		try:
  348: 			fh=urllib.urlopen(meta_url)
  349: 			dom=xml.dom.minidom.parse(fh)
  350: 	        except:
  351: 			return None
  352: 	if not dom: return None
  353: 
  354: 	parent=dom.getElementsByTagName(parent)
  355: 	if not parent: return None
  356: 
  357: 	field=parent[0].getElementsByTagName(field)
  358: 
  359: 	if not field: return None
  360: 
  361: 	return getText(field[0].childNodes)
  362: 	
  363: 	
  364: 	      
  365: def urlopen(url):
  366: 	"""urlopen mit timeout"""
  367: 	socket.setdefaulttimeout(2)
  368: 	ret=urllib.urlopen(url)
  369: 	socket.setdefaulttimeout(5)
  370: 	return ret
  371: #	urlopener = urllib.URLopener()
  372: #
  373: #	try:		
  374: #		con = urlopener.open(url)
  375: #		return con
  376: #	except timeoutsocket.Timeout:
  377: #		return None
  378: 
  379: 
  380: 
  381: 
  382: 
  383: def checkOnlyOneInGroup(object): 
  384: 	"""check if object is a group and if it containt only one element it return this element"""
  385: 	displayedObjects=object.ZopeFind(object,obj_metatypes=displayTypes)
  386: 	if len(displayedObjects)==1: # nur ein Object dann redirect auf dieses Object
  387: 
  388: 		return displayedObjects[0][1]
  389: 	else:		return object
  390: 
  391: def getSubCols(self, sortfield="weight", subColTypes=displayTypes, sortFieldMD=None):
  392: 
  393: 	def sortfnc(sortfield,x,y):
  394: 		try:
  395: 			xa=x[1].getMDValue(sortfield)
  396: 		except:
  397: 			xa=""
  398: 		try:
  399: 			ya=y[1].getMDValue(sortfield)
  400: 		except:
  401: 			ya=""
  402: 		#print xa,ya
  403: 		return cmp(xa,ya)
  404: 	
  405: 	sortWithMD = lambda sortfield : (lambda x,y : sortfnc(sortfield,x,y))
  406:         ids=[]
  407: 	displayedObjects=self.ZopeFind(self,obj_metatypes=subColTypes)
  408: 	
  409: 	
  410: 	for entry in displayedObjects:
  411:             
  412:             object=entry[1]
  413:             ids.append(object)
  414: 
  415:         try:
  416:             sortfield=self.sortfield
  417:         except:
  418:             """nothing"""
  419:             
  420:         tmplist=[]
  421: 
  422:         for x in ids:
  423: 		if hasattr(x,sortfield):
  424: 			try:
  425: 				tmp=int(getattr(x,sortfield))
  426: 			except:
  427: 				tmp=getattr(x,sortfield)
  428: 				
  429: 		else:
  430: 			tmp=10000000
  431: 			
  432: 		tmplist.append((tmp,x))
  433: 
  434: 	if not sortFieldMD:
  435: 		tmplist.sort()
  436: 	else:
  437: 		tmplist.sort(sortWithMD(sortFieldMD))
  438: 	
  439:         return [x for (key,x) in tmplist]
  440: 
  441: def ECHO_rerenderLinksMD(self,obj=None,types=['title','label']):
  442:         """Rerender all Links"""
  443: 	ret=""
  444: 	
  445:         if not obj:
  446:             obj = self
  447:             
  448:         entries=obj.ZopeFind(obj,obj_metatypes=['ECHO_resource'],search_sub=1)
  449: 
  450:         for entry in entries:
  451: 		if entry[1].meta_type == 'ECHO_resource':
  452: 			try:
  453: 				entry[1].ECHO_getResourceMD(template="no")
  454:                                 if "title" in types:
  455:                                     entry[1].generate_title()
  456:                                 if "label" in types:
  457:                                     entry[1].generate_label()
  458: 				ret+="OK:"+entry[0]+"-- "+entry[1].getTitle().decode('utf-8')+"-- "+entry[1].getTitle().decode('utf-8')+"<br>"
  459: 			except:
  460: 				ret+="Error:"+entry[0]+"<br>"
  461: 
  462: 		
  463:                 
  464:                 
  465:         return "<html><body>"+ret+"Rerenderd all links to resources in: "+self.title+"</html></body>"
  466: 
  467: def reloadMetaDataFromStorage(self,RESPONSE=None):
  468: 	    """copy metadata from the storage to ECHO"""
  469: 	    ret=""
  470: 	    resources=self.ZopeFind(self,obj_metatypes=['ECHO_resource'],search_sub=1)
  471: 
  472: 	    for resource in resources:
  473: 		    x=str(resource[1].copyIndex_meta2echo_resource())+"<br>"
  474: 		    ret+=x
  475: 		    #print x
  476: 		    
  477: 
  478: 	    if RESPONSE is not None:
  479: 		    #RESPONSE.redirect('./manage_main')
  480: 		    return "<html><body>"+ret+"</html></body>"
  481: 
  482: 	    return ret
  483:     
  484: def getRDFDescription(self,linkURL,urn=None,nameDef=None,typeName=None):
  485: 	    """rdf"""
  486: 	    
  487: 	    ret=""
  488: 	    about="""<RDF:Description RDF:about="%s">"""
  489: 	    name="""<ECHONAVIGATION:name>%s</ECHONAVIGATION:name>"""
  490: 	    link="""<ECHONAVIGATION:link xlink:href="%s">%s</ECHONAVIGATION:link>"""
  491: 	    clickable="""<ECHONAVIGATION:linkClickable>%s</ECHONAVIGATION:linkClickable>"""
  492: 	    #link="""<ECHONAVIGATION:link RDF:about="%s"/>"""
  493: 	    type="""<ECHONAVIGATION:type>%s</ECHONAVIGATION:type>"""
  494:             #xlink="""<ECHONAVIGATION:xlink xlink:href="%s"/>"""	
  495: 	    if not urn:
  496: 		    #urn="urn:"+re.sub('/',':',self.absolute_url())
  497: 		    urn=self.absolute_url()
  498: 	    about2=about%urn
  499: 	    if not nameDef:
  500: 		    if hasattr(self,'label') and not (self.label==""):
  501: 			    name2=name%self.label
  502: 		    elif not self.title=="":
  503: 			    name2=name%self.title
  504: 		    else:
  505: 			    name2=name%self.getId()
  506: 
  507: 		    name2=re.sub('&','&amp;',name2)
  508: 	    else:
  509: 		    name2=name%nameDef
  510: 
  511: 	    linkURL=re.sub('http:','',linkURL)
  512: 	    linkURL2=re.sub('&','&amp;',linkURL)
  513: 	    link2=link%(("http:"+linkURL2),("http:"+urllib.quote(linkURL)))
  514: 	    clickable2=clickable%"true"
  515: 
  516: 	    if not typeName:
  517: 		    type2=type%self.meta_type
  518: 	    else:
  519: 		    type2=type%typeName
  520: 	    
  521: 	    #ret=about2+"\n"+name2+"\n"+link2+"\n"+type2+"\n"+clickable2+"\n</RDF:Description>"
  522: 	    ret=about2+"\n"+name2+"\n"+type2+"\n"+clickable2+"\n</RDF:Description>"
  523: 	    return ret
  524:     
  525: def getCopyrightsFromForm(self,argv): 
  526: 	medias={}
  527: 	partners={}
  528: 	copyrights={}
  529: 	
  530: 	copyrightsFinal=[]
  531: 	for arg in argv.keys():
  532: 		
  533: 		if arg[0:5]=='media':
  534: 			nm=int(arg[5:])
  535: 			medias[nm]=argv[arg]
  536: 		elif arg[0:5]=='partn':
  537: 			nm=int(arg[5:])
  538: 			partners[nm]=argv[arg]
  539: 		elif arg[0:5]=='copyr':
  540: 			nm=int(arg[5:])
  541: 			copyrights[nm]=argv[arg]
  542: 
  543: 
  544: 
  545: 	copyrightsList=[(medias[nm],partners[nm],copyrights[nm]) for nm in medias.keys()]
  546: 	for copyright in copyrightsList:
  547: 		
  548: 		if copyright[2]=='institution0000':
  549: 			copyrightsFinal.append((copyright[0],copyright[1],self.getPartnerCopyright(copyright[1],'')))
  550: 		else:
  551: 			if not copyright[0]=='':
  552: 				copyrightsFinal.append(copyright)
  553: 		
  554: 			
  555: 	return copyrightsFinal
  556: 
  557: #List of different types for the graphical linking viewer
  558: viewClassificationListMaster=['view point','area']
  559: 
  560: 
  561: def checkDiffs(self,metadict):
  562: 	    """check differences"""
  563: 
  564: 	    
  565: 
  566:     
  567: 	    def NoneToEmpty(obj):
  568: 		    if obj:
  569: 			    return obj
  570: 		    else:
  571: 			    return ""
  572: 
  573: 	    
  574: 	    
  575: 	    diffs={}
  576: 	    
  577: 	    tags=self.findTagsFromMapping(self.contentType)
  578: 	    self.referencetypes=tags[2]
  579: 	    self.fields=tags[3]
  580: 	    
  581:     
  582: 	    for field in tags[1]:
  583: 		    try:
  584: 			    if (NoneToEmpty(self.getFieldValue(self.getFieldTag(tags,field)))==metadict[self.getFieldTag(tags,field)]):
  585: 				    diffs[self.getFieldTag(tags,field)]=1
  586: 			    else:
  587: 				    
  588: 				    diffs[self.getFieldTag(tags,field)]=0
  589: 		    except:
  590: 			    diffs[self.getFieldTag(tags,field)]=0
  591: 			    
  592: 	    return diffs
  593:     
  594: 
  595: def zptFile(self, path, orphaned=False):
  596:     """returns a page template file from the product"""
  597:     if orphaned:
  598: 	# unusual case
  599: 	pt=PageTemplateFile(os.path.join(package_home(globals()), path))
  600:     else:
  601: 	pt=PageTemplateFile(os.path.join(package_home(globals()), path)).__of__(self)
  602:     return pt
  603: 
  604: 
  605: def findObjectPath(startobject, filename):
  606:     """returns the object with the name filename starting at startobject"""
  607:     if startobject is None:
  608: 	return None
  609:     paths = filename.split('/')
  610:     object = startobject
  611:     for path in paths:
  612:         if hasattr(object, path):
  613: 	    object = getattr(object, path)
  614: 	else:
  615: 	    object = None
  616: 	    break
  617:     return object
  618: 
  619: 
  620: def zptObjectOrFile(self, filename, localdir='zpt', orphaned=False):
  621:     """returns a page template instance or a file from the product"""
  622:     # look for an object called path
  623:     pt = findObjectPath(self, filename)
  624:     # the object should also not be a python function
  625:     if (pt is None) or isinstance(pt, types.FunctionType):
  626: 	# get a ZPT file
  627: 	pt = zptFile(self, localdir+'/'+filename, orphaned=orphaned)
  628:     return pt
  629: 
  630: 
  631: def sendFile(self, filename, type):
  632:     """sends an object or a local file (in the product) as response"""
  633:     # look for an object called filename
  634:     object = findObjectPath(self, filename)
  635:     if object:
  636: 	# if the object exists then send it
  637: 	return object.index_html(self.REQUEST.REQUEST, self.REQUEST.RESPONSE)
  638:     else:
  639: 	# send a local file with the given content-type
  640: 	fn = os.path.join(package_home(globals()), filename)
  641: 	self.REQUEST.RESPONSE.setHeader("Content-Type", type)
  642: 	self.REQUEST.RESPONSE.write(file(fn).read())
  643:     return
  644: 
  645: 
  646: class BrowserCheck:
  647:     """check the browsers request to find out the browser type"""
  648:     
  649:     def __init__(self, zope):
  650:         """initialisiere"""
  651: 	self.ua = zope.REQUEST.get_header("HTTP_USER_AGENT")
  652: 	self.isN4 = False
  653: 	self.isIE = False
  654: 	if string.find(self.ua, 'MSIE') > -1:
  655: 	    self.isIE = True
  656: 	else:
  657: 	    self.isN4 = string.find(self.ua, 'Mozilla/4.') > -1
  658: 	try:
  659: 	    self.nav = self.ua[string.find(self.ua, '('):]
  660: 	    ie = string.split(self.nav, "; ")[1]
  661: 	    if string.find(ie, "MSIE") > -1:
  662: 		self.versIE = string.split(ie, " ")[1]
  663: 	except: pass
  664: 	self.isMac = string.find(self.ua, 'Macintosh') > -1
  665: 	self.isWin = string.find(self.ua, 'Windows') > -1
  666: 	self.isIEWin = self.isIE and self.isWin
  667: 	self.isIEMac = self.isIE and self.isMac
  668: 
  669: 		
  670: def writeMetadata(url,metadict,project=None,startpage=None,xslt=None,thumbtemplate=None,topbar=None,digiLibTemplate=None,xmlfrag=None,digiliburlprefix=None):
  671: 	"""Einlesen der Metadaten und und erstellen des geaenderten XML file"""
  672: 
  673: 	def updateTextToolNode(tag,value):
  674: 		#print dom,tag,value
  675: 		metanode=dom.getElementsByTagName('texttool')[0]
  676: 		try:
  677: 			nodeOld=metanode.getElementsByTagName(tag)
  678: 		except:
  679: 			nodeOld=None
  680: 			
  681: 		if nodeOld:
  682: 			metanode.removeChild(nodeOld[0]).unlink()
  683: 
  684: 		node=dom.createElement(tag)
  685: 		nodetext=dom.createTextNode(value)
  686: 		node.appendChild(nodetext)
  687: 		metanode.appendChild(node)
  688: 
  689: 	if xmlfrag:
  690: 		geturl="""<?xml version="1.0" ?>
  691:                            <resource type="MPIWG">
  692: 			   <meta>
  693: 			    <bib type="Book">
  694: 	                    </bib>
  695: 			    </meta>
  696: 			    </resource>"""
  697: 		dom=xml.dom.minidom.parseString(geturl)
  698: 	else:
  699: 		try:
  700: 			geturl=""
  701: 			for line in urlopen(url).readlines():
  702: 				geturl=geturl+line
  703: 
  704: 
  705: 		except:
  706: 			return (None,"XCannot open: "+url)
  707: 
  708: 		try:
  709: 			dom=xml.dom.minidom.parseString(geturl)
  710: 		except:
  711: 			return (None,"Cannot parse: "+url+"<br>"+geturl)
  712: 
  713: 	
  714: 
  715: 	metanodes=dom.getElementsByTagName('bib')
  716: 
  717: 	if not metanodes:
  718: 		metanodes=dom.getElementsByTagName('archimedes')
  719: 
  720: 	metanode=metanodes[0]
  721: 
  722: 	for metaData in metadict.keys():
  723: 		
  724: 		try:
  725: 			nodeOld=metanode.getElementsByTagName(metaData)
  726: 		except:
  727: 			nodeOld=None
  728: 			
  729: 		if nodeOld:
  730: 			metanode.removeChild(nodeOld[0]).unlink()
  731: 		else:
  732: 			# try also old writing rule - instead of _:
  733: 			try:
  734: 				nodeOld=metanode.getElementsByTagName(re.sub('_','-',metaData))
  735: 			except:
  736: 				nodeOld=None
  737: 				
  738: 			if nodeOld:
  739: 				metanode.removeChild(nodeOld[0]).unlink()
  740: 
  741: 		metanodeneu=dom.createElement(metaData)
  742:                 metanodetext=dom.createTextNode(metadict[metaData])
  743: 		#try:
  744: 			#metanodetext=dom.createTextNode(unicode(metadict[metaData],"utf-8"))
  745: 		#except:
  746: 			#metanodetext=dom.createTextNode(metadict[metaData].encode('utf-8'))
  747: 		metanodeneu.appendChild(metanodetext)
  748: 		metanode.appendChild(metanodeneu)
  749: 
  750: 
  751: 	
  752: 	
  753: 	
  754: 	if project:
  755: 		updateTextToolNode('project',project)
  756: 
  757: 	if startpage:
  758: 		updateTextToolNode('startpage',startpage)
  759: 
  760: 	if topbar:
  761: 		updateTextToolNode('toptemplate',topbar)
  762: 
  763: 	if thumbtemplate:
  764: 		updateTextToolNode('thumbtemplate',thumbtemplate)
  765: 
  766: 	if xslt:
  767: 		updateTextToolNode('xslt',xslt)
  768: 
  769: 	
  770: 	if digiliburlprefix:
  771: 		updateTextToolNode('digiliburlprefix',digiliburlprefix)
  772: 	
  773:         try:	
  774: 	 return dom.toxml().encode('utf-8')
  775: 	except:
  776: 	 return dom.toxml('utf-8')
  777: 
  778: 	
  779: 	
  780: def readMetadata(url):
  781:     """Methode zum Auslesen der Metadateninformation zu einer Resource
  782:     Vorerst noch Typ bib"""
  783:     
  784:     metadict={}
  785:     
  786:     try:
  787:         geturl=""
  788:         for line in urlopen(url).readlines():
  789:             geturl=geturl+line
  790:         
  791:         
  792:     except:
  793:         return (None,"Cannot open: "+url)
  794: 
  795:     try:
  796:         dom=xml.dom.minidom.parseString(geturl)
  797:     except:
  798: 	    return (None,"Cannot parse: "+url+"<br>"+geturl)
  799: 
  800:     metanode=dom.getElementsByTagName('bib')
  801:     metadict['bib_type']='Book'
  802:     if len(metanode)==0:
  803:         metanode=dom.getElementsByTagName('archimedes')
  804:         metadict['bib_type']='Archimedes'
  805:         
  806:         
  807:     if not len(metanode)==0:    
  808:         metacontent=metanode[0].childNodes
  809:     
  810:         try:
  811:             metadict['bib_type']=getText(dom.getElementsByTagName('bib')[0].attributes['type'].childNodes)
  812:         except:
  813:             """nothing"""
  814:         
  815:         for node in metacontent:
  816: 		try:
  817: 			#print urllib.unquote(getText(node.childNodes)),getText(node.childNodes)
  818: 			metadict[re.sub('-','_',node.tagName.lower())]=urllib.unquote(getText(node.childNodes))
  819: 		except:
  820: 			"""nothing"""
  821: 
  822: 
  823:     return metadict,""
  824:     
  825: 
  826: class MapArea(SimpleItem):
  827:     """simple class to hold coordinates"""
  828: 
  829:     meta_type = 'MapArea'
  830:     # Create a SecurityInfo for this class.
  831:     security = ClassSecurityInfo()
  832:     security.setDefaultAccess("allow")
  833:     # type constants
  834:     TYPE_AREA = 'area'
  835:     TYPE_ARROW = 'arrow'
  836: 	
  837:     def __init__(self, id, coords, label=None, type=None, text=None):
  838: 	"""init"""
  839: 	self.coords = coords[0:4]
  840: 	if len(coords) > 4:
  841: 	    self.angle = coords[4]
  842: 	else:
  843: 	    self.angle = 0
  844: 	self.id = id
  845: 	self.label = label
  846: 	self.setType(type)
  847: 	self.text = text
  848: 
  849:     def setCoords(self, coords):
  850: 	"""sets the coords"""
  851: 	self.coords = coords
  852: 
  853:     def getCoordString(self):
  854: 	"""returns coordinates as a string"""
  855: 	return string.join(self.coords, ',')
  856: 
  857:     def setCoordString(self, coordstring):
  858: 	"""sets coordinates from a string"""
  859: 	coords = string.split(coordstring, ',')
  860: 	self.coords = [c.strip() for c in coords]
  861: 
  862:     def getFullId(self, prefix=None):
  863: 	"""returns the id with prefixed parent id"""
  864: 	if prefix is None:
  865: 	    if hasattr(self, 'aq_parent'):
  866: 		prefix = self.aq_parent.id
  867: 	    else:
  868: 		prefix = "id"
  869: 	fid = prefix + "." + self.id
  870: 	return fid
  871: 
  872:     def getType(self):
  873: 	"""returns the type"""
  874: 	return self.type
  875: 
  876:     def setType(self, type):
  877: 	"""sets the type"""
  878: 	if type == MapArea.TYPE_ARROW:
  879: 	    self.type = MapArea.TYPE_ARROW
  880: 	elif type == MapArea.TYPE_AREA:
  881: 	    self.type = MapArea.TYPE_AREA
  882: 	else:
  883: 	    self.type = MapArea.TYPE_AREA
  884: 	    
  885:     def isTypeArea(self):
  886: 	"""returns if the type is area"""
  887: 	return self.type == MapArea.TYPE_AREA
  888: 
  889:     def isTypeArrow(self):
  890: 	"""returns if the type is arrow"""
  891: 	return self.type == MapArea.TYPE_ARROW
  892: 
  893:     def getAngle(self):
  894: 	"""returns the angle"""
  895: 	return self.angle
  896: 
  897:     def setAngle(self, angle):
  898: 	"""sets the angle"""
  899: 	self.angle = angle
  900: 
  901:     def getText(self):
  902: 	"""returns the popup text"""
  903: 	if self.text is None:
  904: 	    if hasattr(self, 'aq_parent'):
  905: 		parent = self.aq_parent
  906: 		if parent.contentType == 'text-popup':
  907: 		    return parent.description
  908: 	return self.text
  909: 
  910:     def setText(self, text):
  911: 	"""sets the text"""
  912: 	self.text = text
  913: 
  914:     def getLabel(self):
  915: 	"""returns the link label"""
  916: 	if self.label is None:
  917: 	    if hasattr(self, 'aq_parent'):
  918: 		return self.aq_parent.label or self.aq_parent.id
  919: 	return self.label
  920: 
  921:     def setLabel(self, label):
  922: 	"""sets the label"""
  923: 	self.label = label
  924: 
  925:     def getLinkId(self):
  926: 	if hasattr(self, 'aq_parent'):
  927: 	    return self.aq_parent.id
  928: 	return self.id
  929: 
  930: 
  931: # call this to initialize framework classes, which
  932: # does the right thing with the security assertions.
  933: Globals.InitializeClass(MapArea)

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