Changeset 2:8cc283757c39 in documentViewer

Timestamp:

Jun 14, 2010, 10:50:06 AM (14 years ago)

Author:

abukhman

Branch:

modularisierung

Message:

New Version

Files:

• documentViewer.py (modified) (2 diffs)
• extraFunction.py (added)

documentViewer.py

@@ -1 @@
-
-genericDigilib="http://nausikaa2.rz-berlin.mpg.de/digitallibrary/"
 
 from OFS.Folder import Folder
 from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
-from Products.PageTemplates.PageTemplateFile import PageTemplateFile
+from Products.PageTemplates.PageTemplateFile import PageTemplateFile 
+from Products.PythonScripts.standard import url_quote
 from AccessControl import ClassSecurityInfo
+from AccessControl import getSecurityManager
 from Globals import package_home
 
 from Ft.Xml.Domlette import NonvalidatingReader
 from Ft.Xml.Domlette import PrettyPrint, Print
-from Ft.Xml import EMPTY_NAMESPACE
+from Ft.Xml import EMPTY_NAMESPACE, Parse
+
+from xml.dom.minidom import parse, parseString
+
+from extraFunction import *
+
 
 import Ft.Xml.XPath
-
+import cStringIO
+import xmlrpclib
 import os.path
+import sys
 import cgi
 import urllib
+import logging
+import math
+
+import urlparse 
+from types import *
+
+def logger(txt,method,txt2):
+    """logging"""
+    logging.info(txt+ txt2)
+    
+    
+def getInt(number, default=0):
+    """returns always an int (0 in case of problems)"""
+    try:
+        return int(number)
+    except:
+        return int(default)
 
 def getTextFromNode(nodename):
+    """get the cdata content of a node"""
+    if nodename is None:
+        return ""
     nodelist=nodename.childNodes
     rc = ""
@@ -26 +53 @@
     return rc
 
+def serializeNode(node, encoding='utf-8'):
+    """returns a string containing node as XML"""
+    buf = cStringIO.StringIO()
+    Print(node, stream=buf, encoding=encoding)
+    s = buf.getvalue()
+    buf.close()
+    return s
+
+        
+def getParentDir(path):
+    """returns pathname shortened by one"""
+    return '/'.join(path.split('/')[0:-1])
+        
+
 import socket
 
-def urlopen(url):
+def urlopen(url,timeout=2):
         """urlopen mit timeout"""
-        socket.setdefaulttimeout(2)
+        socket.setdefaulttimeout(timeout)
         ret=urllib.urlopen(url)
         socket.setdefaulttimeout(5)
         return ret
-    
-def getParamFromDigilib(path,param):
-    """gibt param von dlInfo aus"""
-    imageUrl=genericDigilib+"/dlInfo-xml.jsp?fn="+path
-
-    try:
-        dom = NonvalidatingReader.parseUri(imageUrl)
-    except:
-        return None
-    
-    
-    params=dom.xpath("//document-parameters/parameter[@name='%s']/@value"%param)
-    
-    if params:
-        return params[0].value
-    
-def parseUrlTextTool(url):
-   """parse index meta"""
-    
-   try:
-       dom = NonvalidatingReader.parseUri(url)
-   except:
-       zLOG.LOG("documentViewer (parseUrlTexttool)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
-       return (None,None,None)
-   
-   archivePaths=dom.xpath("//resource/archive-path")
-   
-   if archivePaths and (len(archivePaths)>0):
-       archivePath=getTextFromNode(archivePaths[0])
-   else:
-       archivePath=None
-   
-    
-   images=dom.xpath("//texttool/image")
-   
-   if images and (len(images)>0):
-       image=getTextFromNode(images[0])
-   else:
-       image=None
-       
-   if image and archivePath:
-       image=os.path.join(archivePath,image)
-       image=image.replace("/mpiwg/online",'')
-       pt=getParamFromDigilib(image,'pt')
-
-   else:
-       image=None
-       
-   viewerUrls=dom.xpath("//texttool/digiliburlprefix")
-   
-   if viewerUrls and (len(viewerUrls)>0):
-       viewerUrl=getTextFromNode(viewerUrls[0])
-   else:
-       viewerUrl=None
-   
-   
-   textUrls=dom.xpath("//texttool/text")
-   
-   if textUrls and (len(textUrls)>0):
-       textUrl=getTextFromNode(textUrls[0])
-   else:
-       textUrl=None
-   return viewerUrl,(image,pt),textUrl
-
-
-class documentViewer(ZopePageTemplate):
+
+
+##
+## documentViewer class
+##
+class documentViewer(Folder, extraFunction):
     """document viewer"""
-
+    #textViewerUrl="http://127.0.0.1:8080/HFQP/testXSLT/getPage?"
+    
     meta_type="Document viewer"
     
     security=ClassSecurityInfo()
-    manage_options=ZopePageTemplate.manage_options+(
+    manage_options=Folder.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=""):
+    # templates and forms
+    viewer_main = PageTemplateFile('zpt/viewer_main', globals())
+    toc_thumbs = PageTemplateFile('zpt/toc_thumbs', globals())
+    toc_text = PageTemplateFile('zpt/toc_text', globals())
+    toc_figures = PageTemplateFile('zpt/toc_figures', globals())
+    page_main_images = PageTemplateFile('zpt/page_main_images', globals())
+    page_main_text = PageTemplateFile('zpt/page_main_text', globals())
+    page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
+    page_main_xml = PageTemplateFile('zpt/page_main_xml', globals())
+    head_main = PageTemplateFile('zpt/head_main', globals())
+    docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
+    info_xml = PageTemplateFile('zpt/info_xml', globals())
+    
+    
+    thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
+    security.declareProtected('View management screens','changeDocumentViewerForm')    
+    changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
+
+    
+    def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
         """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()
+        self.thumbcols = thumbcols
+        self.thumbrows = thumbrows
+        # authgroups is list of authorized groups (delimited by ,)
+        self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
+        # create template folder so we can always use template.something
+        
+        templateFolder = Folder('template')
+        #self['template'] = templateFolder # Zope-2.12 style
+        self._setObject('template',templateFolder) # old style
+        try:
+            from Products.XMLRpcTools.XMLRpcTools import XMLRpcServerProxy
+            xmlRpcClient = XMLRpcServerProxy(id='fulltextclient', serverUrl=textServerName, use_xmlrpc=False)
+            #templateFolder['fulltextclient'] = xmlRpcClient
+            templateFolder._setObject('fulltextclient',xmlRpcClient)
+        except Exception, e:
+            logging.error("Unable to create XMLRpcTools for fulltextclient: "+str(e))
+        try:
+            from Products.zogiLib.zogiLib import zogiLib
+            zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
+            #templateFolder['zogilib'] = zogilib
+            templateFolder._setObject('zogilib',zogilib)
+        except Exception, e:
+            logging.error("Unable to create zogiLib for zogilib: "+str(e))
+        
+
+    security.declareProtected('View','thumbs_rss')
+    def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
+        '''
+        view it
+        @param mode: defines how to access the document behind url 
+        @param url: url which contains display information
+        @param viewMode: if images display images, if text display text, default is images (text,images or auto)
+        
+        '''
+        logging.debug("HHHHHHHHHHHHHH:load the rss")
+        logger("documentViewer (index)", logging.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, 'thumbs_main_rss')
+        
+        if viewMode=="auto": # automodus gewaehlt
+            if docinfo.get("textURL",'') and self.textViewerUrl: #texturl gesetzt und textViewer konfiguriert
+                viewMode="text"
+            else:
+                viewMode="images"
+               
+        return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
   
+    security.declareProtected('View','index_html')
+    def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None, query=None, querySearch=None):
+        '''
+        view it
+        @param mode: defines how to access the document behind url 
+        @param url: url which contains display information
+        @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
+        @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, none)
+        @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph, fulltextMorphLemma)
+        '''
+        
+        logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
+        
+        if not hasattr(self, 'template'):
+            # this won't work
+            logging.error("template folder missing!")
+            return "ERROR: template folder missing!"
+            
+        if not getattr(self, 'digilibBaseUrl', None):
+            self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
+            
+        docinfo = self.getDocinfo(mode=mode,url=url)
+        
+        
+        if tocMode != "thumbs":
+            # get table of contents
+            docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
+            
+        if viewMode=="auto": # automodus gewaehlt
+            if docinfo.get("textURL",''): #texturl gesetzt und textViewer konfiguriert
+                viewMode="text_dict"
+            else:
+                viewMode="images"
+                
+        pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
+        
+        pt = getattr(self.template, 'viewer_main')               
+        return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
   
-    def changeDocumentViewer(self,imageViewerUrl,title="",RESPONSE=None):
+    def generateMarks(self,mk):
+        ret=""
+        if mk is None:
+            return ""
+        if type(mk) is not ListType:
+                mk=[mk]
+        for m in mk:
+            ret+="mk=%s"%m
+        return ret
+
+
+    def findDigilibUrl(self):
+        """try to get the digilib URL from zogilib"""
+        url = self.template.zogilib.getDLBaseUrl()
+        return url
+
+    def getDocumentViewerURL(self):
+        """returns the URL of this instance"""
+        return self.absolute_url()
+    
+    def getStyle(self, idx, selected, style=""):
+        """returns a string with the given style and append 'sel' if path == selected."""
+        #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
+        if idx == selected:
+            return style + 'sel'
+        else:
+            return style
+    
+    def getLink(self,param=None,val=None):
+        """link to documentviewer with parameter param set to val"""
+        params=self.REQUEST.form.copy()
+        if param is not None:
+            if val is None:
+                if params.has_key(param):
+                    del params[param]
+            else:
+                params[param] = str(val)
+                
+        if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
+                params["mode"] = "imagepath"
+                params["url"] = getParentDir(params["url"])
+                
+        # quote values and assemble into query string
+        ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
+        url=self.REQUEST['URL1']+"?"+ps
+        return url
+
+    def getLinkAmp(self,param=None,val=None):
+        """link to documentviewer with parameter param set to val"""
+        params=self.REQUEST.form.copy()
+        if param is not None:
+            if val is None:
+                if params.has_key(param):
+                    del params[param]
+            else:
+                params[param] = str(val)
+                
+        # quote values and assemble into query string
+        logging.info("XYXXXXX: %s"%repr(params.items()))
+        ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
+        url=self.REQUEST['URL1']+"?"+ps
+        return url
+    
+    def getInfo_xml(self,url,mode):
+        """returns info about the document as XML"""
+
+        if not self.digilibBaseUrl:
+            self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
+        
+        docinfo = self.getDocinfo(mode=mode,url=url)
+        pt = getattr(self.template, 'info_xml')
+        return pt(docinfo=docinfo)
+
+    
+    def isAccessible(self, docinfo):
+        """returns if access to the resource is granted"""
+        access = docinfo.get('accessType', None)
+        logger("documentViewer (accessOK)", logging.INFO, "access type %s"%access)
+        if access is not None and access == 'free':
+            logger("documentViewer (accessOK)", logging.INFO, "access is free")
+            return True
+        elif access is None or access in self.authgroups:
+            # only local access -- only logged in users
+            user = getSecurityManager().getUser()
+            if user is not None:
+                #print "user: ", user
+                return (user.getUserName() != "Anonymous User")
+            else:
+                return False
+        
+        logger("documentViewer (accessOK)", logging.INFO, "unknown access type %s"%access)
+        return False
+    
+                
+    def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
+        """gibt param von dlInfo aus"""
+        num_retries = 3
+        if docinfo is None:
+            docinfo = {}
+        
+        for x in range(cut):
+               
+                path=getParentDir(path)
+       
+        infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
+    
+        logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo from %s"%(infoUrl))
+        
+        for cnt in range(num_retries):
+            try:
+                # dom = NonvalidatingReader.parseUri(imageUrl)
+                txt=urllib.urlopen(infoUrl).read()
+                dom = Parse(txt)
+                break
+            except:
+                logger("documentViewer (getdirinfofromdigilib)", logging.ERROR, "error reading %s (try %d)"%(infoUrl,cnt))
+        else:
+            raise IOError("Unable to get dir-info from %s"%(infoUrl))
+        
+        sizes=dom.xpath("//dir/size")
+        logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo:size"%sizes)
+        
+        if sizes:
+            docinfo['numPages'] = int(getTextFromNode(sizes[0]))
+        else:
+            docinfo['numPages'] = 0
+            
+        # TODO: produce and keep list of image names and numbers
+                        
+        return docinfo
+    
+            
+    def getIndexMeta(self, url):
+        """returns dom of index.meta document at url"""
+        num_retries = 3
+        dom = None
+        metaUrl = None
+        if url.startswith("http://"):
+            # real URL
+            metaUrl = url
+        else:
+            # online path
+            server=self.digilibBaseUrl+"/servlet/Texter?fn="
+            metaUrl=server+url.replace("/mpiwg/online","")
+            if not metaUrl.endswith("index.meta"):
+                metaUrl += "/index.meta"
+        logging.debug("METAURL: %s"%metaUrl)
+        for cnt in range(num_retries):
+            try:
+                # patch dirk encoding fehler treten dann nicht mehr auf
+                # dom = NonvalidatingReader.parseUri(metaUrl)
+                txt=urllib.urlopen(metaUrl).read()
+                dom = Parse(txt)
+                break
+            except:
+                logger("ERROR documentViewer (getIndexMeta)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2])
+                
+        if dom is None:
+            raise IOError("Unable to read index meta from %s"%(url))
+                 
+        return dom
+    
+    def getPresentationInfoXML(self, url):
+        """returns dom of info.xml document at url"""
+        num_retries = 3
+        dom = None
+        metaUrl = None
+        if url.startswith("http://"):
+            # real URL
+            metaUrl = url
+        else:
+            # online path
+            server=self.digilibBaseUrl+"/servlet/Texter?fn="
+            metaUrl=server+url.replace("/mpiwg/online","")
+        
+        for cnt in range(num_retries):
+            try:
+                # patch dirk encoding fehler treten dann nicht mehr auf
+                # dom = NonvalidatingReader.parseUri(metaUrl)
+                txt=urllib.urlopen(metaUrl).read()
+                dom = Parse(txt)
+                break
+            except:
+                logger("ERROR documentViewer (getPresentationInfoXML)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2])
+                
+        if dom is None:
+            raise IOError("Unable to read infoXMLfrom %s"%(url))
+                 
+        return dom
+                        
+        
+    def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
+        """gets authorization info from the index.meta file at path or given by dom"""
+        logger("documentViewer (getauthinfofromindexmeta)", logging.INFO,"path: %s"%(path))
+        
+        access = None
+        
+        if docinfo is None:
+            docinfo = {}
+            
+        if dom is None:
+            for x in range(cut):
+                path=getParentDir(path)
+            dom = self.getIndexMeta(path)
+       
+        acctype = dom.xpath("//access-conditions/access/@type")
+        if acctype and (len(acctype)>0):
+            access=acctype[0].value
+            if access in ['group', 'institution']:
+                access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
+            
+        docinfo['accessType'] = access
+        return docinfo
+    
+        
+    def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
+        """gets bibliographical info from the index.meta file at path or given by dom"""
+        logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
+        
+        if docinfo is None:
+            docinfo = {}
+        
+        if dom is None:
+            for x in range(cut):
+                path=getParentDir(path)
+            dom = self.getIndexMeta(path)
+        
+        logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
+        # put in all raw bib fields as dict "bib"
+        bib = dom.xpath("//bib/*")
+        if bib and len(bib)>0:
+            bibinfo = {}
+            for e in bib:
+                bibinfo[e.localName] = getTextFromNode(e)
+            docinfo['bib'] = bibinfo
+        
+        # extract some fields (author, title, year) according to their mapping
+        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)
+        docinfo['bib_type'] = bibtype
+        bibmap=metaData.generateMappingForType(bibtype)
+        # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
+        if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
+            try:
+                docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
+            except: pass
+            try:
+                docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
+            except: pass
+            try:
+                docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
+            except: pass
+            logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
+            try:
+                docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
+            except:
+                docinfo['lang']=''
+
+        return docinfo
+    
+    
+    def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
+        """parse texttool tag in index meta"""
+        logger("documentViewer (getdocinfofromtexttool)", logging.INFO, "url: %s" % (url))
+        if docinfo is None:
+           docinfo = {}
+        if docinfo.get('lang', None) is None:
+            docinfo['lang'] = '' # default keine Sprache gesetzt
+        if dom is None:
+            dom = self.getIndexMeta(url)
+        
+        archivePath = None
+        archiveName = None
+    
+        archiveNames = dom.xpath("//resource/name")
+        if archiveNames and (len(archiveNames) > 0):
+            archiveName = getTextFromNode(archiveNames[0])
+        else:
+            logger("documentViewer (getdocinfofromtexttool)", logging.WARNING, "resource/name missing in: %s" % (url))
+        
+        archivePaths = dom.xpath("//resource/archive-path")
+        if archivePaths and (len(archivePaths) > 0):
+            archivePath = getTextFromNode(archivePaths[0])
+            # clean up archive path
+            if archivePath[0] != '/':
+                archivePath = '/' + archivePath
+            if archiveName and (not archivePath.endswith(archiveName)):
+                archivePath += "/" + archiveName
+        else:
+            # try to get archive-path from url
+            logger("documentViewer (getdocinfofromtexttool)", logging.WARNING, "resource/archive-path missing in: %s" % (url))
+            if (not url.startswith('http')):
+                archivePath = url.replace('index.meta', '')
+                
+        if archivePath is None:
+            # we balk without archive-path
+            raise IOError("Missing archive-path (for text-tool) in %s" % (url))
+        
+        imageDirs = dom.xpath("//texttool/image")
+        if imageDirs and (len(imageDirs) > 0):
+            imageDir = getTextFromNode(imageDirs[0])
+            
+        else:
+            # we balk with no image tag / not necessary anymore because textmode is now standard
+            #raise IOError("No text-tool info in %s"%(url))
+            imageDir = ""
+            #xquery="//pb"  
+            docinfo['imagePath'] = "" # keine Bilder
+            docinfo['imageURL'] = ""
+            
+        if imageDir and archivePath:
+            #print "image: ", imageDir, " archivepath: ", archivePath
+            imageDir = os.path.join(archivePath, imageDir)
+            imageDir = imageDir.replace("/mpiwg/online", '')
+            docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
+            docinfo['imagePath'] = imageDir
+            
+            docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
+            
+        viewerUrls = dom.xpath("//texttool/digiliburlprefix")
+        if viewerUrls and (len(viewerUrls) > 0):
+            viewerUrl = getTextFromNode(viewerUrls[0])
+            docinfo['viewerURL'] = viewerUrl
+                   
+        textUrls = dom.xpath("//texttool/text")
+        if textUrls and (len(textUrls) > 0):
+            textUrl = getTextFromNode(textUrls[0])
+            if urlparse.urlparse(textUrl)[0] == "": #keine url
+                textUrl = os.path.join(archivePath, textUrl) 
+            # fix URLs starting with /mpiwg/online
+            if textUrl.startswith("/mpiwg/online"):
+                textUrl = textUrl.replace("/mpiwg/online", '', 1)
+            
+            docinfo['textURL'] = textUrl
+    
+        textUrls = dom.xpath("//texttool/text-url-path")
+        if textUrls and (len(textUrls) > 0):
+            textUrl = getTextFromNode(textUrls[0])
+            docinfo['textURLPath'] = textUrl
+            if not docinfo['imagePath']:
+                # text-only, no page images
+                docinfo = self.getNumPages(docinfo) #im moment einfach auf eins setzen, navigation ueber die thumbs geht natuerlich nicht    
+         
+        presentationUrls = dom.xpath("//texttool/presentation")
+        docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
+        
+        if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
+             # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
+             # durch den relativen Pfad auf die presentation infos
+            presentationPath = getTextFromNode(presentationUrls[0])
+            if url.endswith("index.meta"): 
+                presentationUrl = url.replace('index.meta', presentationPath)
+            else:
+                presentationUrl = url + "/" + presentationPath
+                
+            docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
+    
+        docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
+        
+        return docinfo
+   
+   
+    def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
+        """gets the bibliographical information from the preseantion entry in texttools
+        """
+        dom=self.getPresentationInfoXML(url)
+        try:
+            docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
+        except:
+            pass
+        try:
+            docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
+        except:
+            pass
+        try:
+            docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
+        except:
+            pass
+        return docinfo
+    
+    def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
+        """path ist the path to the images it assumes that the index.meta file is one level higher."""
+        logger("documentViewer (getdocinfofromimagepath)", logging.INFO,"path: %s"%(path))
+        if docinfo is None:
+            docinfo = {}
+        path=path.replace("/mpiwg/online","")
+        docinfo['imagePath'] = path
+        docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
+        
+        pathorig=path
+        for x in range(cut):       
+                path=getParentDir(path)
+        logging.error("PATH:"+path)
+        imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
+        docinfo['imageURL'] = imageUrl
+        
+        #path ist the path to the images it assumes that the index.meta file is one level higher.
+        docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
+        docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
+        return docinfo
+    
+    
+    def getDocinfo(self, mode, url):
+        """returns docinfo depending on mode"""
+        logger("documentViewer (getdocinfo)", logging.INFO,"mode: %s, url: %s"%(mode,url))
+        # look for cached docinfo in session
+        if self.REQUEST.SESSION.has_key('docinfo'):
+            docinfo = self.REQUEST.SESSION['docinfo']
+            # check if its still current
+            if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
+                logger("documentViewer (getdocinfo)", logging.INFO,"docinfo in session: %s"%docinfo)
+                return docinfo
+        # new docinfo
+        docinfo = {'mode': mode, 'url': url}
+        if mode=="texttool": #index.meta with texttool information
+            docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
+        elif mode=="imagepath":
+            docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
+        elif mode=="filepath":
+            docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
+        else:
+            logger("documentViewer (getdocinfo)", logging.ERROR,"unknown mode!")
+            raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
+                        
+        logger("documentViewer (getdocinfo)", logging.INFO,"docinfo: %s"%docinfo)
+        self.REQUEST.SESSION['docinfo'] = docinfo
+        return docinfo
+               
+    def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=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=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
+        # int(current / grpsize) * grpsize +1))
+        pageinfo['start'] = start
+        pageinfo['end'] = start + grpsize
+        if (docinfo is not None) and ('numPages' in docinfo):
+            np = int(docinfo['numPages'])
+            pageinfo['end'] = min(pageinfo['end'], np)
+            pageinfo['numgroups'] = int(np / grpsize)
+            if np % grpsize > 0:
+                pageinfo['numgroups'] += 1        
+        pageinfo['viewMode'] = viewMode
+        pageinfo['tocMode'] = tocMode
+        pageinfo['query'] = self.REQUEST.get('query',' ')
+        pageinfo['queryType'] = self.REQUEST.get('queryType',' ')
+        pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
+        pageinfo['textPN'] = self.REQUEST.get('textPN','1')
+        pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
+        pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
+        pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
+        pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
+        toc = int (pageinfo['tocPN'])
+        pageinfo['textPages'] =int (toc)
+        
+        if 'tocSize_%s'%tocMode in docinfo:
+            tocSize = int(docinfo['tocSize_%s'%tocMode])
+            tocPageSize = int(pageinfo['tocPageSize'])
+            # cached toc           
+            if tocSize%tocPageSize>0:
+                tocPages=tocSize/tocPageSize+1
+            else:
+                tocPages=tocSize/tocPageSize
+            pageinfo['tocPN'] = min (tocPages,toc)                    
+        pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
+        pageinfo['sn'] =self.REQUEST.get('sn','')
+        return pageinfo
+    
+def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
         """init document viewer"""
         self.title=title
-        self.imageViewerUrl=imageViewerUrl
-        
+        self.digilibBaseUrl = digilibBaseUrl
+        self.thumbrows = thumbrows
+        self.thumbcols = thumbcols
+        self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
         if RESPONSE is not None:
             RESPONSE.redirect('manage_main')
-    
-    
-    def imageLink(self,nr):
-        """link hinter den images"""
-        paramsTmp=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
-        params={}
-        for x in paramsTmp.iteritems():
-                params[x[0]]=x[1][0]
-    
-        params['pn']=nr
-        newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)
-        return newUrl
-        
-        
-    def thumbruler(self,cols,rows,start,maximum):
-        """ruler for thumbs"""
-        ret=""
-        paramsTmp=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
-        params={}
-        for x in paramsTmp.iteritems():
-
-            if not x[0]=="start":
-                params[x[0]]=x[1][0]
-
-        newUrlSelect=self.REQUEST['URL']+"?"+urllib.urlencode(params)    
-        if start>0:
-            newStart=max(start-cols*rows,0)
-            params['start']=newStart
-            newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)
-            ret+="""<a href="%s">prev</a>"""%newUrl
-
-
-        ret+="""<select onChange="location.href='%s&start='+this.options[this.selectedIndex].value" """%newUrlSelect
-        nr,rest=divmod(maximum,cols*rows)
-        if rest > 0:
-            nr+=1
-        for i in range(nr):
-            nr=i*cols*rows
-           
-            if (start >= nr) and (start < nr+cols*rows):  
-                ret+="""<option value="%s" selected>%s</option>"""%(nr,nr)
-            else:
-                ret+="""<option value="%s">%s</option>"""%(nr,nr)
-        ret+="</select>"
-        
-        if start<maximum:
-            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):
-        """give text"""
-        if mode=="texttool": #index.meta with texttool information
-            (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)
-        
-        print textpath
-        try:
-            dom = NonvalidatingReader.parseUri(textpath)
-        except:
-            return None
-    
-        list=[]
-        nodes=dom.xpath("//pb")
-
-        node=nodes[int(pn)-1]
-        
-        p=node
-        
-        while p.tagName!="p":
-            p=p.parentNode
-        
-        
-        endNode=nodes[int(pn)]
-        
-        
-        e=endNode
-        
-        while e.tagName!="p":
-            e=e.parentNode
-        
-        
-        next=node.parentNode
-        
-        #sammle s
-        while next and (next!=endNode.parentNode):
-            list.append(next)    
-            next=next.nextSibling    
-        list.append(endNode.parentNode)
-        
-        if p==e:# beide im selben paragraphen
-        
-    else:
-            next=p
-            while next!=e:
-                print next,e
-                list.append(next)
-                next=next.nextSibling
-            
-        for x in list:
-            PrettyPrint(x)
-
-        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)
-        
-        
-        
-#    security.declareProtected('View management screens','renameImageForm')
-
+        
 def manage_AddDocumentViewerForm(self):
     """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()
   
-def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None):
+def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
     """add the viewer"""
-    newObj=documentViewer(id,imageViewerUrl,title)
+    newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
     self._setObject(id,newObj)
     
     if RESPONSE is not None:
         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)
+    txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
+    logging.info("txt %s:"%txt)
+    ob.pt_edit(txt,"text/html")
+    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 ''
+
+
+