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Diff for /documentViewer/documentViewer.py between versions 1.1 and 1.8

version 1.1, 2005/12/18 12:35:02 version 1.8, 2006/04/11 17:27:57
Line 1 Line 1
   
 genericDigilib="http://nausikaa2.rz-berlin.mpg.de/digitallibrary/"  
   
 from OFS.Folder import Folder  from OFS.Folder import Folder
 from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate  from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
 from Products.PageTemplates.PageTemplateFile import PageTemplateFile  from Products.PageTemplates.PageTemplateFile import PageTemplateFile
 from AccessControl import ClassSecurityInfo  from AccessControl import ClassSecurityInfo
   from AccessControl import getSecurityManager
 from Globals import package_home  from Globals import package_home
   
 from Ft.Xml.Domlette import NonvalidatingReader  from Ft.Xml.Domlette import NonvalidatingReader
Line 14  from Ft.Xml import EMPTY_NAMESPACE Line 12  from Ft.Xml import EMPTY_NAMESPACE
 import Ft.Xml.XPath  import Ft.Xml.XPath
   
 import os.path  import os.path
   import sys
 import cgi  import cgi
 import urllib  import urllib
   import zLOG
   
   def getInt(number, default=0):
       """returns always an int (0 in case of problems)"""
       try:
           return int(number)
       except:
           return default
       
   
 def getTextFromNode(nodename):  def getTextFromNode(nodename):
       if nodename is None:
           return ""
     nodelist=nodename.childNodes      nodelist=nodename.childNodes
     rc = ""      rc = ""
     for node in nodelist:      for node in nodelist:
Line 27  def getTextFromNode(nodename): Line 37  def getTextFromNode(nodename):
   
 import socket  import socket
   
 def urlopen(url):  def urlopen(url,timeout=2):
         """urlopen mit timeout"""          """urlopen mit timeout"""
         socket.setdefaulttimeout(2)          socket.setdefaulttimeout(timeout)
         ret=urllib.urlopen(url)          ret=urllib.urlopen(url)
         socket.setdefaulttimeout(5)          socket.setdefaulttimeout(5)
         return ret          return ret
           
 def getParamFromDigilib(path,param):  
   ##
   ## documentViewer class
   ##
   class documentViewer(Folder):
       """document viewer"""
   
       meta_type="Document viewer"
       
       security=ClassSecurityInfo()
       manage_options=Folder.manage_options+(
           {'label':'main config','action':'changeDocumentViewerForm'},
           )
   
       # templates and forms
       viewer_main = PageTemplateFile('zpt/viewer_main', globals())
       thumbs_main = PageTemplateFile('zpt/thumbs_main', globals())
       image_main = PageTemplateFile('zpt/image_main', globals())
       head_main = PageTemplateFile('zpt/head_main', globals())
       docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
   
       security.declareProtected('View management screens','changeDocumentViewerForm')    
       changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
   
       
       def __init__(self,id,imageViewerUrl,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=10,authgroups="mpiwg"):
           """init document viewer"""
           self.id=id
           self.title=title
           self.imageViewerUrl=imageViewerUrl
           if not digilibBaseUrl:
               self.digilibBaseUrl = self.findDigilibUrl()
           else:
               self.digilibBaseUrl = digilibBaseUrl
           self.thumbcols = thumbcols
           self.thumbrows = thumbrows
           # authgroups is list of authorized groups (delimited by ,)
           self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
           # add template folder so we can always use template.something
           self.manage_addFolder('template')
   
   
       security.declareProtected('View','index_html')
       def index_html(self,mode,url,start=None,pn=1):
           '''
           view it
           @param mode: defines which type of document is behind url
           @param url: url which contains display information
           '''
           
           zLOG.LOG("documentViewer (index)", zLOG.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
           
           if not hasattr(self, 'template'):
               # create template folder if it doesn't exist
               self.manage_addFolder('template')
               
           if not self.digilibBaseUrl:
               self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
               
           docinfo = self.getDocinfo(mode=mode,url=url)
           pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
           pt = getattr(self.template, 'viewer_main')
           return pt(docinfo=docinfo,pageinfo=pageinfo)
     
     
       def getLink(self,param=None,val=None):
           """link to documentviewer with parameter param set to val"""
           params=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
           if param is not None:
               if val is None:
                   if params.has_key(param):
                       del params[param]
               else:
                   params[param] = [str(val)]
                   
           ps = "&".join(["%s=%s"%(k,urllib.quote(v[0])) for (k, v) in params.items()])
           url=self.REQUEST['URL']+"?"+ps
           #url=self.REQUEST['URL']+"?"+urllib.urlencode(params, doseq=True)
           return url
   
       
       def getStyle(self, idx, selected, style=""):
           """returns a string with the given style and append 'sel' if path == selected."""
           #zLOG.LOG("documentViewer (getstyle)", zLOG.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
           if idx == selected:
               return style + 'sel'
           else:
               return style    
           
       def accessOK(self, docinfo):
           """returns if access to the resource is granted"""
           access = docinfo.get('accessType', None)
           if access is None:
               # no information - no access (not yet)
               return True
           elif access == 'free':
               return True
           
           print "access: ", access, " authgroups: ", self.authgroups
           if access in self.authgroups:
               # local access OK
               user = getSecurityManager().getUser().getUserName()
               print "user: ", user
               return (user != "Anonymous User")
           
           zLOG.LOG("documentViewer (accessOK)", zLOG.INFO, "unknown access group %s"%access)
           return False
                   
           
       def getDirinfoFromDigilib(self,path,docinfo=None):
     """gibt param von dlInfo aus"""      """gibt param von dlInfo aus"""
     imageUrl=genericDigilib+"/dlInfo-xml.jsp?fn="+path          if docinfo is None:
               docinfo = {}
               
           imageUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
       
           zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo from %s"%(imageUrl))
   
     try:      try:
         dom = NonvalidatingReader.parseUri(imageUrl)          dom = NonvalidatingReader.parseUri(imageUrl)
     except:      except:
         return None              zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.ERROR, "error reading %s"%(imageUrl))
                   raise IOError("Unable to get dirinfo from %s"%(imageUrl))
           
     params=dom.xpath("//document-parameters/parameter[@name='%s']/@value"%param)          params=dom.xpath("//dir/size")
           zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo:size"%params)
           
     if params:      if params:
         return params[0].value              docinfo['numPages'] = int(getTextFromNode(params[0]))
           else:
               docinfo['numPages'] = 0
                           
           return docinfo
       
               
       def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None):
           """gets authorization info from the index.meta file at url or given by dom"""
           zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path))
           
           access = None
           
           if docinfo is None:
               docinfo = {}
               
           if dom is None:
               server=self.digilibBaseUrl+"/servlet/Texter?fn="
               path="/".join(path.split("/")[0:-1])
               metaUrl=server+path+"/index.meta"
               try:
                   dom = NonvalidatingReader.parseUri(metaUrl)
               except:
                   return docinfo
           
 def parseUrlTextTool(url):          acctype = dom.xpath("//access-conditions/access/@type")
    """parse index meta"""          if acctype and (len(acctype)>0):
               access=acctype[0].value
               if access == 'group':
                   access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
           
           docinfo['accessType'] = access
           return docinfo
       
           
       def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None):
           """gets bibliographical info from the index.meta file at url or given by dom"""
           zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path))
           
           if docinfo is None:
               docinfo = {}
               
           if dom is None:
               server=self.digilibBaseUrl+"/servlet/Texter?fn="
               path="/".join(path.split("/")[0:-1])
               metaUrl=server+path+"/index.meta"
               try:
                   dom = NonvalidatingReader.parseUri(metaUrl)
               except:
                   return docinfo
           
           metaData=self.metadata.main.meta.bib
           bibtype=dom.xpath("//bib/@type")
           if bibtype and (len(bibtype)>0):
               bibtype=bibtype[0].value
           else:
               bibtype="generic"
           bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
           bibmap=metaData.generateMappingForType(bibtype)
           print "bibmap: ", bibmap, " for: ", bibtype
           # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
           if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
               docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
               docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
               docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
           
           return docinfo
   
           
       def getDocinfoFromTextTool(self,url,dom=None,docinfo=None):
          """parse texttool tag in index meta"""
          zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.INFO,"url: %s"%(url))
          if docinfo is None:
              docinfo = {}
              
          if dom is None:
    try:     try:
        dom = NonvalidatingReader.parseUri(url)         dom = NonvalidatingReader.parseUri(url)
    except:     except:
        zLOG.LOG("documentViewer (parseUrlTexttool)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])         zLOG.LOG("documentViewer (parseUrlTexttool)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
        return (None,None,None)                 raise IOError("Unable to get texttool info from %s"%(url))
         
    archivePaths=dom.xpath("//resource/archive-path")         archiveNames=dom.xpath("//resource/name")
          if archiveNames and (len(archiveNames)>0):
              archiveName=getTextFromNode(archiveNames[0])
         
          archivePaths=dom.xpath("//resource/archive-path")
    if archivePaths and (len(archivePaths)>0):     if archivePaths and (len(archivePaths)>0):
        archivePath=getTextFromNode(archivePaths[0])         archivePath=getTextFromNode(archivePaths[0])
              # clean up archive path
              if archivePath[0] != '/':
                  archivePath = '/' + archivePath
              if not archivePath.endswith(archiveName):
                  archivePath += "/" + archiveName
    else:     else:
        archivePath=None         archivePath=None
         
       
    images=dom.xpath("//texttool/image")     images=dom.xpath("//texttool/image")
      
    if images and (len(images)>0):     if images and (len(images)>0):
        image=getTextFromNode(images[0])         image=getTextFromNode(images[0])
    else:     else:
        image=None         image=None
                 
    if image and archivePath:     if image and archivePath:
              print "image: ", image, " archivepath: ", archivePath
        image=os.path.join(archivePath,image)         image=os.path.join(archivePath,image)
        image=image.replace("/mpiwg/online",'')         image=image.replace("/mpiwg/online",'')
        pt=getParamFromDigilib(image,'pt')             docinfo=self.getDirinfoFromDigilib(image,docinfo=docinfo)
              docinfo['imagePath'] = image
    else:             docinfo['imageURL'] = self.digilibBaseUrl+"/servlet/Scaler?fn="+image
        image=None  
                 
    viewerUrls=dom.xpath("//texttool/digiliburlprefix")     viewerUrls=dom.xpath("//texttool/digiliburlprefix")
      
    if viewerUrls and (len(viewerUrls)>0):     if viewerUrls and (len(viewerUrls)>0):
        viewerUrl=getTextFromNode(viewerUrls[0])         viewerUrl=getTextFromNode(viewerUrls[0])
    else:             docinfo['viewerURL'] = viewerUrl
        viewerUrl=None  
      
         
    textUrls=dom.xpath("//texttool/text")     textUrls=dom.xpath("//texttool/text")
      
    if textUrls and (len(textUrls)>0):     if textUrls and (len(textUrls)>0):
        textUrl=getTextFromNode(textUrls[0])         textUrl=getTextFromNode(textUrls[0])
    else:             docinfo['textURL'] = textUrl
        textUrl=None  
    return viewerUrl,(image,pt),textUrl  
   
   
 class documentViewer(ZopePageTemplate):  
     """document viewer"""  
   
     meta_type="Document viewer"  
       
     security=ClassSecurityInfo()  
     manage_options=ZopePageTemplate.manage_options+(  
         {'label':'main config','action':'changeDocumentViewerForm'},  
         )  
   
     _default_content_fn = os.path.join(package_home(globals()),'zpt','documentViewer_template.zpt')  
       
     def __init__(self,id,imageViewerUrl,title=""):  
         """init document viewer"""  
         self.id=id  
         self.title=title  
         self.imageViewerUrl=imageViewerUrl  
           
     security.declareProtected('View management screens','changeDocumentViewerForm')      
     def changeDocumentViewerForm(self):  
         """change it"""  
         pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','changeDocumentViewer.zpt')).__of__(self)  
         return pt()  
     
     
     def changeDocumentViewer(self,imageViewerUrl,title="",RESPONSE=None):  
         """init document viewer"""  
         self.title=title  
         self.imageViewerUrl=imageViewerUrl  
           
         if RESPONSE is not None:  
             RESPONSE.redirect('manage_main')  
       
           
     def imageLink(self,nr):         docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)
         """link hinter den images"""         docinfo = self.getAuthinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)
         paramsTmp=cgi.parse_qs(self.REQUEST['QUERY_STRING'])         return docinfo
         params={}     
         for x in paramsTmp.iteritems():  
                 params[x[0]]=x[1][0]      def getDocinfoFromImagePath(self,path,docinfo=None):
               """path ist the path to the images it assumes that the index.meta file is one level higher."""
         params['pn']=nr          zLOG.LOG("documentViewer (getdocinfofromimagepath)", zLOG.INFO,"path: %s"%(path))
         newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)          if docinfo is None:
         return newUrl              docinfo = {}
                   path=path.replace("/mpiwg/online","")
                   docinfo['imagePath'] = path
     def thumbruler(self,cols,rows,start,maximum):          docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo)
         """ruler for thumbs"""          imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
         ret=""          docinfo['imageURL'] = imageUrl
         paramsTmp=cgi.parse_qs(self.REQUEST['QUERY_STRING'])          
         params={}          docinfo = self.getBibinfoFromIndexMeta(path,docinfo=docinfo)
         for x in paramsTmp.iteritems():          docinfo = self.getAuthinfoFromIndexMeta(path,docinfo=docinfo)
           return docinfo
             if not x[0]=="start":      
                 params[x[0]]=x[1][0]      
       def getDocinfo(self, mode, url):
         newUrlSelect=self.REQUEST['URL']+"?"+urllib.urlencode(params)              """returns docinfo depending on mode"""
         if start>0:          zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"mode: %s, url: %s"%(mode,url))
             newStart=max(start-cols*rows,0)          # look for cached docinfo in session
             params['start']=newStart          if self.REQUEST.SESSION.has_key('docinfo'):
             newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)              docinfo = self.REQUEST.SESSION['docinfo']
             ret+="""<a href="%s">prev</a>"""%newUrl              # check if its still current
               if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
                   zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo in session: %s"%docinfo)
         ret+="""<select onChange="location.href='%s&start='+this.options[this.selectedIndex].value" """%newUrlSelect                  return docinfo
         nr,rest=divmod(maximum,cols*rows)          # new docinfo
         if rest > 0:          docinfo = {'mode': mode, 'url': url}
             nr+=1          if mode=="texttool": #index.meta with texttool information
         for i in range(nr):              docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
             nr=i*cols*rows          elif mode=="imagepath":
                          docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
             if (start >= nr) and (start < nr+cols*rows):    
                 ret+="""<option value="%s" selected>%s</option>"""%(nr,nr)  
             else:              else:
                 ret+="""<option value="%s">%s</option>"""%(nr,nr)              zLOG.LOG("documentViewer (getdocinfo)", zLOG.ERROR,"unknown mode!")
         ret+="</select>"          zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo: %s"%docinfo)
           self.REQUEST.SESSION['docinfo'] = docinfo
           return docinfo
           
           
       def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None):
           """returns pageinfo with the given parameters"""
           pageinfo = {}
           current = getInt(current)
           pageinfo['current'] = current
           rows = int(rows or self.thumbrows)
           pageinfo['rows'] = rows
           cols = int(cols or self.thumbcols)
           pageinfo['cols'] = cols
           grpsize = cols * rows
           pageinfo['groupsize'] = grpsize
           start = getInt(start, default=(int(current / grpsize) * grpsize +1))
           pageinfo['start'] = start
           pageinfo['end'] = start + grpsize
           if docinfo is not None:
               np = int(docinfo['numPages'])
               pageinfo['end'] = min(pageinfo['end'], np)
               pageinfo['numgroups'] = int(np / grpsize)
               if np % grpsize > 0:
                   pageinfo['numgroups'] += 1
                   
         if start<maximum:          return pageinfo
             newStart=min(start+cols*rows,maximum)  
             params['start']=newStart  
             newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)  
             ret+="""<a href="%s">next</a>"""%newUrl  
           
         return ret  
           
     def textToolThumb(self,url,start=0):  
         """understands the texttool format  
         @param url: url to index.meta with texttool tag  
         """  
         (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)  
           
         imageUrl=genericDigilib+"/servlet/Scaler?fn=%s"%imagepath[0]  
           
         pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','thumbs.zpt')).__of__(self)  
         return pt(imageUrl=imageUrl,pt=imagepath[1],start=start)  
           
     def text(self,mode,url,pn):      def text(self,mode,url,pn):
         """give text"""          """give text"""
Line 234  class documentViewer(ZopePageTemplate): Line 400  class documentViewer(ZopePageTemplate):
         list.append(endNode.parentNode)          list.append(endNode.parentNode)
                   
         if p==e:# beide im selben paragraphen          if p==e:# beide im selben paragraphen
               pass
   #    else:
   #            next=p
   #            while next!=e:
   #                print next,e
   #                list.append(next)
   #                next=next.nextSibling
   #            
   #        for x in list:
   #            PrettyPrint(x)
   #
   #        return list
   #
   
       def findDigilibUrl(self):
           """try to get the digilib URL from zogilib"""
           url = self.imageViewerUrl[:-1] + "/getScalerUrl"
           try:
               scaler = urlopen(url).read()
               return scaler.replace("/servlet/Scaler?", "")
           except:
               return None
                   
     else:      def changeDocumentViewer(self,imageViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,authgroups='mpiwg',RESPONSE=None):
             next=p          """init document viewer"""
             while next!=e:          self.title=title
                 print next,e          self.imageViewerUrl=imageViewerUrl
                 list.append(next)          self.digilibBaseUrl = digilibBaseUrl
                 next=next.nextSibling          self.thumbrows = thumbrows
                       self.thumbcols = thumbcols
         for x in list:          self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
             PrettyPrint(x)          if RESPONSE is not None:
               RESPONSE.redirect('manage_main')
         return list  
       
     def image(self,mode,url,pn):  
         """give image out"""  
         if mode=="texttool": #index.meta with texttool information  
             (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)  
             url=viewerUrl+"pn=%s&fn=%s"%(pn,imagepath[0])  
             ret="""<iframe height="100%%" width="100%%" src="%s"/>"""%url  
             return url  
           
     def thumbs(self,mode,url,start):  
         """give thumbs out"""  
         if mode=="texttool": #index.meta with texttool information  
             return self.textToolThumb(url,int(start))  
           
     security.declareProtected('View','index_html')  
       
       
     def index_html(self,mode,url,start=0,pn=0):  
         '''  
         view it  
         @param mode: defines which type of document is behind url  
         @param url: url which contains display information  
         '''  
           
           
         pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','documentViewer_template.zpt')).__of__(self)  
         return pt(mode=mode,url=url,start=start,pn=pn)  
                   
                   
                   
Line 280  class documentViewer(ZopePageTemplate): Line 441  class documentViewer(ZopePageTemplate):
   
 def manage_AddDocumentViewerForm(self):  def manage_AddDocumentViewerForm(self):
     """add the viewer form"""      """add the viewer form"""
     pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','addDocumentViewer.zpt')).__of__(self)      pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
     return pt()      return pt()
       
 def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None):  def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None):
Line 291  def manage_AddDocumentViewer(self,id,ima Line 452  def manage_AddDocumentViewer(self,id,ima
     if RESPONSE is not None:      if RESPONSE is not None:
         RESPONSE.redirect('manage_main')          RESPONSE.redirect('manage_main')
           
   
   
   ##
   ## DocumentViewerTemplate class
   ##
   class DocumentViewerTemplate(ZopePageTemplate):
       """Template for document viewer"""
       meta_type="DocumentViewer Template"
   
   
   def manage_addDocumentViewerTemplateForm(self):
       """Form for adding"""
       pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
       return pt()
   
   def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
                              REQUEST=None, submit=None):
       "Add a Page Template with optional file content."
   
       self._setObject(id, DocumentViewerTemplate(id))
       ob = getattr(self, id)
       ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/viewer_main.zpt')).read(),None)
       if title:
           ob.pt_setTitle(title)
       try:
           u = self.DestinationURL()
       except AttributeError:
           u = REQUEST['URL1']
           
       u = "%s/%s" % (u, urllib.quote(id))
       REQUEST.RESPONSE.redirect(u+'/manage_main')
       return ''
   
   
       
   
Removed from v.1.1  
changed lines
  Added in v.1.8

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