File:  [Repository] / documentViewer / documentViewer.py
Revision 1.46: download - view: text, annotated - select for diffs - revision graph
Wed Apr 21 13:50:59 2010 UTC (14 years, 2 months ago) by abukhman
Branches: MAIN
CVS tags: HEAD
getTranslate, getLemma
two functions

    1: 
    2: from OFS.Folder import Folder
    3: from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
    4: from Products.PageTemplates.PageTemplateFile import PageTemplateFile 
    5: from AccessControl import ClassSecurityInfo
    6: from AccessControl import getSecurityManager
    7: from Globals import package_home
    8: 
    9: from Ft.Xml.Domlette import NonvalidatingReader
   10: from Ft.Xml.Domlette import PrettyPrint, Print
   11: from Ft.Xml import EMPTY_NAMESPACE, Parse
   12: 
   13: 
   14: import Ft.Xml.XPath
   15: import cStringIO
   16: import xmlrpclib
   17: import os.path
   18: import sys
   19: import cgi
   20: import urllib
   21: import logging
   22: import math
   23: 
   24: import urlparse 
   25: from types import *
   26: 
   27: def logger(txt,method,txt2):
   28:     """logging"""
   29:     logging.info(txt+ txt2)
   30:     
   31:     
   32: def getInt(number, default=0):
   33:     """returns always an int (0 in case of problems)"""
   34:     try:
   35:         return int(number)
   36:     except:
   37:         return int(default)
   38: 
   39: def getTextFromNode(nodename):
   40:     """get the cdata content of a node"""
   41:     if nodename is None:
   42:         return ""
   43:     nodelist=nodename.childNodes
   44:     rc = ""
   45:     for node in nodelist:
   46:         if node.nodeType == node.TEXT_NODE:
   47:            rc = rc + node.data
   48:     return rc
   49: 
   50: def serializeNode(node, encoding='utf-8'):
   51:     """returns a string containing node as XML"""
   52:     buf = cStringIO.StringIO()
   53:     Print(node, stream=buf, encoding=encoding)
   54:     s = buf.getvalue()
   55:     buf.close()
   56:     return s
   57: 
   58:         
   59: def getParentDir(path):
   60:     """returns pathname shortened by one"""
   61:     return '/'.join(path.split('/')[0:-1])
   62:         
   63: 
   64: import socket
   65: 
   66: def urlopen(url,timeout=2):
   67:         """urlopen mit timeout"""
   68:         socket.setdefaulttimeout(timeout)
   69:         ret=urllib.urlopen(url)
   70:         socket.setdefaulttimeout(5)
   71:         return ret
   72: 
   73: 
   74: ##
   75: ## documentViewer class
   76: ##
   77: class documentViewer(Folder):
   78:     """document viewer"""
   79:     #textViewerUrl="http://127.0.0.1:8080/HFQP/testXSLT/getPage?"
   80:     
   81:     meta_type="Document viewer"
   82:     
   83:     security=ClassSecurityInfo()
   84:     manage_options=Folder.manage_options+(
   85:         {'label':'main config','action':'changeDocumentViewerForm'},
   86:         )
   87: 
   88:     # templates and forms
   89:     viewer_main = PageTemplateFile('zpt/viewer_main', globals())
   90:     toc_thumbs = PageTemplateFile('zpt/toc_thumbs', globals())
   91:     toc_text = PageTemplateFile('zpt/toc_text', globals())
   92:     toc_figures = PageTemplateFile('zpt/toc_figures', globals())
   93:     page_main_images = PageTemplateFile('zpt/page_main_images', globals())
   94:     page_main_text = PageTemplateFile('zpt/page_main_text', globals())
   95:     page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
   96:     head_main = PageTemplateFile('zpt/head_main', globals())
   97:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
   98:     info_xml = PageTemplateFile('zpt/info_xml', globals())
   99: 
  100:     thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
  101:     security.declareProtected('View management screens','changeDocumentViewerForm')    
  102:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
  103: 
  104:     
  105:     def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
  106:         """init document viewer"""
  107:         self.id=id
  108:         self.title=title
  109:         self.thumbcols = thumbcols
  110:         self.thumbrows = thumbrows
  111:         # authgroups is list of authorized groups (delimited by ,)
  112:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  113:         # create template folder so we can always use template.something
  114:         
  115:         templateFolder = Folder('template')
  116:         #self['template'] = templateFolder # Zope-2.12 style
  117:         self._setObject('template',templateFolder) # old style
  118:         try:
  119:             from Products.XMLRpcTools.XMLRpcTools import XMLRpcServerProxy
  120:             xmlRpcClient = XMLRpcServerProxy(id='fulltextclient', serverUrl=textServerName, use_xmlrpc=False)
  121:             #templateFolder['fulltextclient'] = xmlRpcClient
  122:             templateFolder._setObject('fulltextclient',xmlRpcClient)
  123:         except Exception, e:
  124:             logging.error("Unable to create XMLRpcTools for fulltextclient: "+str(e))
  125:         try:
  126:             from Products.zogiLib.zogiLib import zogiLib
  127:             zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
  128:             #templateFolder['zogilib'] = zogilib
  129:             templateFolder._setObject('zogilib',zogilib)
  130:         except Exception, e:
  131:             logging.error("Unable to create zogiLib for zogilib: "+str(e))
  132:         
  133: 
  134:     security.declareProtected('View','thumbs_rss')
  135:     def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
  136:         '''
  137:         view it
  138:         @param mode: defines how to access the document behind url 
  139:         @param url: url which contains display information
  140:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  141:         
  142:         '''
  143:         logging.debug("HHHHHHHHHHHHHH:load the rss")
  144:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  145:         
  146:         if not hasattr(self, 'template'):
  147:             # create template folder if it doesn't exist
  148:             self.manage_addFolder('template')
  149:             
  150:         if not self.digilibBaseUrl:
  151:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  152:             
  153:         docinfo = self.getDocinfo(mode=mode,url=url)
  154:         pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  155:         pt = getattr(self.template, 'thumbs_main_rss')
  156:         
  157:         if viewMode=="auto": # automodus gewaehlt
  158:             if docinfo.get("textURL",'') and self.textViewerUrl: #texturl gesetzt und textViewer konfiguriert
  159:                 viewMode="text"
  160:             else:
  161:                 viewMode="images"
  162:                
  163:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  164:   
  165:     security.declareProtected('View','index_html')
  166:     def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None, query=None, querySearch=None):
  167:         '''
  168:         view it
  169:         @param mode: defines how to access the document behind url 
  170:         @param url: url which contains display information
  171:         @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
  172:         @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, search)
  173:         @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph)
  174:         '''
  175:         
  176:         logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  177:         
  178:         if not hasattr(self, 'template'):
  179:             # this won't work
  180:             logging.error("template folder missing!")
  181:             return "ERROR: template folder missing!"
  182:             
  183:         if not getattr(self, 'digilibBaseUrl', None):
  184:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  185:             
  186:         docinfo = self.getDocinfo(mode=mode,url=url)
  187:         pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
  188:         if tocMode != "thumbs":
  189:             # get table of contents
  190:             docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
  191: 
  192:         if viewMode=="auto": # automodus gewaehlt
  193:             if docinfo.get("textURL",''): #texturl gesetzt und textViewer konfiguriert
  194:                 viewMode="text"
  195:             else:
  196:                 viewMode="images"
  197:                 
  198:         pt = getattr(self.template, 'viewer_main')               
  199:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
  200:   
  201:     def generateMarks(self,mk):
  202:         ret=""
  203:         if mk is None:
  204:             return ""
  205:     	if type(mk) is not ListType:
  206:     		mk=[mk]
  207:         for m in mk:
  208:             ret+="mk=%s"%m
  209:         return ret
  210: 
  211: 
  212:     def findDigilibUrl(self):
  213:         """try to get the digilib URL from zogilib"""
  214:         url = self.template.zogilib.getDLBaseUrl()
  215:         return url
  216:     
  217:     def getStyle(self, idx, selected, style=""):
  218:         """returns a string with the given style and append 'sel' if path == selected."""
  219:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  220:         if idx == selected:
  221:             return style + 'sel'
  222:         else:
  223:             return style
  224:     
  225:     def getLink(self,param=None,val=None):
  226:         """link to documentviewer with parameter param set to val"""
  227:         params=self.REQUEST.form.copy()
  228:         if param is not None:
  229:             if val is None:
  230:                 if params.has_key(param):
  231:                     del params[param]
  232:             else:
  233:                 params[param] = str(val)
  234:                 
  235:         if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  236:                 params["mode"] = "imagepath"
  237:                 params["url"] = getParentDir(params["url"])
  238:                 
  239:         # quote values and assemble into query string
  240:         ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  241:         url=self.REQUEST['URL1']+"?"+ps
  242:         return url
  243: 
  244:     def getLinkAmp(self,param=None,val=None):
  245:         """link to documentviewer with parameter param set to val"""
  246:         params=self.REQUEST.form.copy()
  247:         if param is not None:
  248:             if val is None:
  249:                 if params.has_key(param):
  250:                     del params[param]
  251:             else:
  252:                 params[param] = str(val)
  253:                 
  254:         # quote values and assemble into query string
  255:         logging.info("XYXXXXX: %s"%repr(params.items()))
  256:         ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  257:         url=self.REQUEST['URL1']+"?"+ps
  258:         return url
  259:     
  260:     def getInfo_xml(self,url,mode):
  261:         """returns info about the document as XML"""
  262: 
  263:         if not self.digilibBaseUrl:
  264:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  265:         
  266:         docinfo = self.getDocinfo(mode=mode,url=url)
  267:         pt = getattr(self.template, 'info_xml')
  268:         return pt(docinfo=docinfo)
  269: 
  270:     
  271:     def isAccessible(self, docinfo):
  272:         """returns if access to the resource is granted"""
  273:         access = docinfo.get('accessType', None)
  274:         logger("documentViewer (accessOK)", logging.INFO, "access type %s"%access)
  275:         if access is not None and access == 'free':
  276:             logger("documentViewer (accessOK)", logging.INFO, "access is free")
  277:             return True
  278:         elif access is None or access in self.authgroups:
  279:             # only local access -- only logged in users
  280:             user = getSecurityManager().getUser()
  281:             if user is not None:
  282:                 #print "user: ", user
  283:                 return (user.getUserName() != "Anonymous User")
  284:             else:
  285:                 return False
  286:         
  287:         logger("documentViewer (accessOK)", logging.INFO, "unknown access type %s"%access)
  288:         return False
  289:     
  290:                 
  291:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  292:         """gibt param von dlInfo aus"""
  293:         num_retries = 3
  294:         if docinfo is None:
  295:             docinfo = {}
  296:         
  297:         for x in range(cut):
  298:                
  299:                 path=getParentDir(path)
  300:        
  301:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  302:     
  303:         logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo from %s"%(infoUrl))
  304:         
  305:         for cnt in range(num_retries):
  306:             try:
  307:                 # dom = NonvalidatingReader.parseUri(imageUrl)
  308:                 txt=urllib.urlopen(infoUrl).read()
  309:                 dom = Parse(txt)
  310:                 break
  311:             except:
  312:                 logger("documentViewer (getdirinfofromdigilib)", logging.ERROR, "error reading %s (try %d)"%(infoUrl,cnt))
  313:         else:
  314:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  315:         
  316:         sizes=dom.xpath("//dir/size")
  317:         logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo:size"%sizes)
  318:         
  319:         if sizes:
  320:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  321:         else:
  322:             docinfo['numPages'] = 0
  323:             
  324:         # TODO: produce and keep list of image names and numbers
  325:                         
  326:         return docinfo
  327:     
  328:             
  329:     def getIndexMeta(self, url):
  330:         """returns dom of index.meta document at url"""
  331:         num_retries = 3
  332:         dom = None
  333:         metaUrl = None
  334:         if url.startswith("http://"):
  335:             # real URL
  336:             metaUrl = url
  337:         else:
  338:             # online path
  339:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  340:             metaUrl=server+url.replace("/mpiwg/online","")
  341:             if not metaUrl.endswith("index.meta"):
  342:                 metaUrl += "/index.meta"
  343:         logging.debug("METAURL: %s"%metaUrl)
  344:         for cnt in range(num_retries):
  345:             try:
  346:                 # patch dirk encoding fehler treten dann nicht mehr auf
  347:                 # dom = NonvalidatingReader.parseUri(metaUrl)
  348:                 txt=urllib.urlopen(metaUrl).read()
  349:                 dom = Parse(txt)
  350:                 break
  351:             except:
  352:                 logger("ERROR documentViewer (getIndexMeta)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2])
  353:                 
  354:         if dom is None:
  355:             raise IOError("Unable to read index meta from %s"%(url))
  356:                  
  357:         return dom
  358:     
  359:     def getPresentationInfoXML(self, url):
  360:         """returns dom of info.xml document at url"""
  361:         num_retries = 3
  362:         dom = None
  363:         metaUrl = None
  364:         if url.startswith("http://"):
  365:             # real URL
  366:             metaUrl = url
  367:         else:
  368:             # online path
  369:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  370:             metaUrl=server+url.replace("/mpiwg/online","")
  371:         
  372:         for cnt in range(num_retries):
  373:             try:
  374:                 # patch dirk encoding fehler treten dann nicht mehr auf
  375:                 # dom = NonvalidatingReader.parseUri(metaUrl)
  376:                 txt=urllib.urlopen(metaUrl).read()
  377:                 dom = Parse(txt)
  378:                 break
  379:             except:
  380:                 logger("ERROR documentViewer (getPresentationInfoXML)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2])
  381:                 
  382:         if dom is None:
  383:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  384:                  
  385:         return dom
  386:                         
  387:         
  388:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  389:         """gets authorization info from the index.meta file at path or given by dom"""
  390:         logger("documentViewer (getauthinfofromindexmeta)", logging.INFO,"path: %s"%(path))
  391:         
  392:         access = None
  393:         
  394:         if docinfo is None:
  395:             docinfo = {}
  396:             
  397:         if dom is None:
  398:             for x in range(cut):
  399:                 path=getParentDir(path)
  400:             dom = self.getIndexMeta(path)
  401:        
  402:         acctype = dom.xpath("//access-conditions/access/@type")
  403:         if acctype and (len(acctype)>0):
  404:             access=acctype[0].value
  405:             if access in ['group', 'institution']:
  406:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  407:             
  408:         docinfo['accessType'] = access
  409:         return docinfo
  410:     
  411:         
  412:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  413:         """gets bibliographical info from the index.meta file at path or given by dom"""
  414:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  415:         
  416:         if docinfo is None:
  417:             docinfo = {}
  418:         
  419:         if dom is None:
  420:             for x in range(cut):
  421:                 path=getParentDir(path)
  422:             dom = self.getIndexMeta(path)
  423:         
  424:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  425:         # put in all raw bib fields as dict "bib"
  426:         bib = dom.xpath("//bib/*")
  427:         if bib and len(bib)>0:
  428:             bibinfo = {}
  429:             for e in bib:
  430:                 bibinfo[e.localName] = getTextFromNode(e)
  431:             docinfo['bib'] = bibinfo
  432:         
  433:         # extract some fields (author, title, year) according to their mapping
  434:         metaData=self.metadata.main.meta.bib
  435:         bibtype=dom.xpath("//bib/@type")
  436:         if bibtype and (len(bibtype)>0):
  437:             bibtype=bibtype[0].value
  438:         else:
  439:             bibtype="generic"
  440:             
  441:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  442:         docinfo['bib_type'] = bibtype
  443:         bibmap=metaData.generateMappingForType(bibtype)
  444:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  445:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  446:             try:
  447:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  448:             except: pass
  449:             try:
  450:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  451:             except: pass
  452:             try:
  453:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  454:             except: pass
  455:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  456:             try:
  457:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  458:             except:
  459:                 docinfo['lang']=''
  460: 
  461:         return docinfo
  462:     
  463:     
  464:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  465:         """parse texttool tag in index meta"""
  466:         logger("documentViewer (getdocinfofromtexttool)", logging.INFO, "url: %s" % (url))
  467:         if docinfo is None:
  468:            docinfo = {}
  469:         if docinfo.get('lang', None) is None:
  470:             docinfo['lang'] = '' # default keine Sprache gesetzt
  471:         if dom is None:
  472:             dom = self.getIndexMeta(url)
  473:         
  474:         archivePath = None
  475:         archiveName = None
  476:     
  477:         archiveNames = dom.xpath("//resource/name")
  478:         if archiveNames and (len(archiveNames) > 0):
  479:             archiveName = getTextFromNode(archiveNames[0])
  480:         else:
  481:             logger("documentViewer (getdocinfofromtexttool)", logging.WARNING, "resource/name missing in: %s" % (url))
  482:         
  483:         archivePaths = dom.xpath("//resource/archive-path")
  484:         if archivePaths and (len(archivePaths) > 0):
  485:             archivePath = getTextFromNode(archivePaths[0])
  486:             # clean up archive path
  487:             if archivePath[0] != '/':
  488:                 archivePath = '/' + archivePath
  489:             if archiveName and (not archivePath.endswith(archiveName)):
  490:                 archivePath += "/" + archiveName
  491:         else:
  492:             # try to get archive-path from url
  493:             logger("documentViewer (getdocinfofromtexttool)", logging.WARNING, "resource/archive-path missing in: %s" % (url))
  494:             if (not url.startswith('http')):
  495:                 archivePath = url.replace('index.meta', '')
  496:                 
  497:         if archivePath is None:
  498:             # we balk without archive-path
  499:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  500:         
  501:         imageDirs = dom.xpath("//texttool/image")
  502:         if imageDirs and (len(imageDirs) > 0):
  503:             imageDir = getTextFromNode(imageDirs[0])
  504:             
  505:         else:
  506:             # we balk with no image tag / not necessary anymore because textmode is now standard
  507:             #raise IOError("No text-tool info in %s"%(url))
  508:             imageDir = ""
  509:             #xquery="//pb"  
  510:             docinfo['imagePath'] = "" # keine Bilder
  511:             docinfo['imageURL'] = ""
  512:             
  513:         if imageDir and archivePath:
  514:             #print "image: ", imageDir, " archivepath: ", archivePath
  515:             imageDir = os.path.join(archivePath, imageDir)
  516:             imageDir = imageDir.replace("/mpiwg/online", '')
  517:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  518:             docinfo['imagePath'] = imageDir
  519:             
  520:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  521:             
  522:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  523:         if viewerUrls and (len(viewerUrls) > 0):
  524:             viewerUrl = getTextFromNode(viewerUrls[0])
  525:             docinfo['viewerURL'] = viewerUrl
  526:                    
  527:         textUrls = dom.xpath("//texttool/text")
  528:         if textUrls and (len(textUrls) > 0):
  529:             textUrl = getTextFromNode(textUrls[0])
  530:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  531:                 textUrl = os.path.join(archivePath, textUrl) 
  532:             # fix URLs starting with /mpiwg/online
  533:             if textUrl.startswith("/mpiwg/online"):
  534:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  535:             
  536:             docinfo['textURL'] = textUrl
  537:     
  538:         textUrls = dom.xpath("//texttool/text-url-path")
  539:         if textUrls and (len(textUrls) > 0):
  540:             textUrl = getTextFromNode(textUrls[0])
  541:             docinfo['textURLPath'] = textUrl   
  542:          
  543:         presentationUrls = dom.xpath("//texttool/presentation")
  544:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  545:         
  546:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  547:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  548:              # durch den relativen Pfad auf die presentation infos
  549:             presentationPath = getTextFromNode(presentationUrls[0])
  550:             if url.endswith("index.meta"): 
  551:                 presentationUrl = url.replace('index.meta', presentationPath)
  552:             else:
  553:                 presentationUrl = url + "/" + presentationPath
  554:             docinfo = self.getNumPages(docinfo) #im moment einfach auf eins setzen, navigation ueber die thumbs geht natuerlich nicht    
  555:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  556:     
  557:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  558:         
  559:         return docinfo
  560:    
  561:    
  562:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  563:         """gets the bibliographical information from the preseantion entry in texttools
  564:         """
  565:         dom=self.getPresentationInfoXML(url)
  566:         try:
  567:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  568:         except:
  569:             pass
  570:         try:
  571:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  572:         except:
  573:             pass
  574:         try:
  575:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  576:         except:
  577:             pass
  578:         return docinfo
  579:     
  580:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  581:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  582:         logger("documentViewer (getdocinfofromimagepath)", logging.INFO,"path: %s"%(path))
  583:         if docinfo is None:
  584:             docinfo = {}
  585:         path=path.replace("/mpiwg/online","")
  586:         docinfo['imagePath'] = path
  587:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  588:         
  589:         pathorig=path
  590:         for x in range(cut):       
  591:                 path=getParentDir(path)
  592:         logging.error("PATH:"+path)
  593:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  594:         docinfo['imageURL'] = imageUrl
  595:         
  596:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  597:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  598:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  599:         return docinfo
  600:     
  601:     
  602:     def getDocinfo(self, mode, url):
  603:         """returns docinfo depending on mode"""
  604:         logger("documentViewer (getdocinfo)", logging.INFO,"mode: %s, url: %s"%(mode,url))
  605:         # look for cached docinfo in session
  606:         if self.REQUEST.SESSION.has_key('docinfo'):
  607:             docinfo = self.REQUEST.SESSION['docinfo']
  608:             # check if its still current
  609:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  610:                 logger("documentViewer (getdocinfo)", logging.INFO,"docinfo in session: %s"%docinfo)
  611:                 return docinfo
  612:         # new docinfo
  613:         docinfo = {'mode': mode, 'url': url}
  614:         if mode=="texttool": #index.meta with texttool information
  615:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  616:         elif mode=="imagepath":
  617:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  618:         elif mode=="filepath":
  619:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  620:         else:
  621:             logger("documentViewer (getdocinfo)", logging.ERROR,"unknown mode!")
  622:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  623:                         
  624:         logger("documentViewer (getdocinfo)", logging.INFO,"docinfo: %s"%docinfo)
  625:         self.REQUEST.SESSION['docinfo'] = docinfo
  626:         return docinfo
  627:         
  628:         
  629:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None):
  630:         """returns pageinfo with the given parameters"""
  631:         pageinfo = {}
  632:         current = getInt(current)
  633:         pageinfo['current'] = current
  634:         rows = int(rows or self.thumbrows)
  635:         pageinfo['rows'] = rows
  636:         cols = int(cols or self.thumbcols)
  637:         pageinfo['cols'] = cols
  638:         grpsize = cols * rows
  639:         pageinfo['groupsize'] = grpsize
  640:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  641:         # int(current / grpsize) * grpsize +1))
  642:         pageinfo['start'] = start
  643:         pageinfo['end'] = start + grpsize
  644:         if (docinfo is not None) and ('numPages' in docinfo):
  645:             np = int(docinfo['numPages'])
  646:             pageinfo['end'] = min(pageinfo['end'], np)
  647:             pageinfo['numgroups'] = int(np / grpsize)
  648:             if np % grpsize > 0:
  649:                 pageinfo['numgroups'] += 1
  650:                 
  651:         pageinfo['viewMode'] = viewMode
  652:         pageinfo['tocMode'] = tocMode
  653:         pageinfo['query'] = self.REQUEST.get('query',' ')
  654:         pageinfo['queryType'] = self.REQUEST.get('queryType',' ')
  655:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  656:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  657:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '20')
  658:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
  659:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  660:         pageinfo['sn'] =self.REQUEST.get('sn','1')
  661: 
  662:         return pageinfo
  663:                 
  664:     def getSearch(self, pn=1, pageinfo=None,  docinfo=None, query=None, queryType=None):
  665:         """get search list"""
  666:         docpath = docinfo['textURLPath'] 
  667:         pagesize = pageinfo['queryPageSize']
  668:         pn = pageinfo['searchPN']
  669:         sn = pageinfo['sn']
  670:         query =pageinfo['query']
  671:         queryType =pageinfo['queryType']
  672:         viewMode=  pageinfo['viewMode']
  673:         tocMode = pageinfo['tocMode']
  674:         tocPN = pageinfo['tocPN']
  675:         pagexml=self.template.fulltextclient.eval("/mpdl/interface/doc-query.xql","document=%s&mode=%s&queryType=%s&query=%s&queryResultPageSize=%s&queryResultPN=%s&sn=%s"%(docpath, 'text', queryType, query, pagesize, pn, sn) ,outputUnicode=False)           
  676:         pagedom = Parse(pagexml)
  677:         #pagedivs = pagedom.xpath("//div[@class='queryResultPage']")
  678:         selfurl = self.absolute_url()
  679:         page = pagexml.replace('page-fragment.xql?document=/echo/la/Benedetti_1585.xml','%s?url=/mpiwg/online/permanent/library/163127KK&viewMode=%s&tocMode=%s&tocPN=%s&query=%s&queryType=%s'%(selfurl, viewMode, tocMode, tocPN, query, queryType))
  680:         text =page.replace('mode=text','mode=texttool')
  681:         return text
  682:         #if len(pagedivs) > 0:
  683:         #    pagenode = pagedom[0]
  684:         #    return serializeNode(pagenode)
  685:         #else:
  686:         #    return "xaxa"
  687: 
  688:     def getNumPages(self,docinfo=None):
  689:         """get list of pages from fulltext and put in docinfo"""
  690:         xquery = '//pb'
  691:         text = self.template.fulltextclient.eval("/mpdl/interface/xquery.xql", "document=%s&xquery=%s"%(docinfo['textURLPath'],xquery))
  692:         # TODO: better processing of the page list. do we need the info somewhere else also?
  693:         docinfo['numPages'] = text.count("<pb ")
  694:         return docinfo
  695:        
  696:     def getTextPage(self, mode="text", pn=1, docinfo=None, pageinfo=None,):
  697:         """returns single page from fulltext"""
  698:         docpath = docinfo['textURLPath']
  699:         if mode == "text_dict":
  700:             textmode = "textPollux"
  701:         else:
  702:             textmode = mode
  703:             
  704:         #selfurl = self.absolute_url()  
  705:         #viewMode=  pageinfo['viewMode']
  706:         #tocMode = pageinfo['tocMode']
  707:         #tocPN = pageinfo['tocPN']
  708:   
  709:         pagexml=self.template.fulltextclient.eval("/mpdl/interface/page-fragment.xql", "document=%s&mode=%s&pn=%s"%(docpath,textmode,pn), outputUnicode=False)
  710:         #######
  711:         #page = pagexml.replace('page-fragment.xql?document=/echo/la/Benedetti_1585.xml','%s?url=/mpiwg/online/permanent/library/163127KK&viewMode=%s&tocMode=%s&tocPN=%s'%(selfurl, viewMode, tocMode, tocPN))
  712:         #text =page.replace('mode=text','mode=texttool')
  713:         #######
  714:         # post-processing downloaded xml
  715:         pagedom = Parse(pagexml)
  716:         # plain text mode
  717:         if mode == "text":
  718:             # first div contains text
  719:             pagedivs = pagedom.xpath("/div")
  720:             #queryResultPage
  721:             if len(pagedivs) > 0:
  722:                 pagenode = pagedivs[0]
  723:                 return serializeNode(pagenode)
  724: 
  725:         # text-with-links mode
  726:         if mode == "text_dict":
  727:             # first div contains text
  728:             pagedivs = pagedom.xpath("/div")
  729:             if len(pagedivs) > 0:
  730:                 pagenode = pagedivs[0]
  731:                 # check all a-tags
  732:                 links = pagenode.xpath("//a")
  733:                 for l in links:
  734:                     hrefNode = l.getAttributeNodeNS(None, u"href")
  735:                     if hrefNode:
  736:                         # is link with href
  737:                         href = hrefNode.nodeValue
  738:                         if href.startswith('lt/lex.xql'):
  739:                             # is pollux link
  740:                             selfurl = self.absolute_url()
  741:                             # change href
  742:                             hrefNode.nodeValue = href.replace('lt/lex.xql','%s/template/head_main_voc'%selfurl)
  743:                             # add target
  744:                             l.setAttributeNS(None, 'target', '_blank')
  745:                             
  746:                         if href.startswith('lt/lemma.xql'):    
  747:                             selfurl = self.absolute_url()
  748:                             hrefNode.nodeValue = href.replace('lt/lemma.xql','%s/template/head_main_lemma'%selfurl)
  749:                             l.setAttributeNS(None, 'target', '_blank')
  750:                 return serializeNode(pagenode)
  751:         
  752:         return "no text here"
  753: 
  754:     def getTranslate(self, query=None, language=None):
  755:         """translate into another languages"""
  756:         pagexml=self.template.fulltextclient.eval("/mpdl/interface/lt/lex.xql","query=%s&language=%s"%(query,language),outputUnicode=False)
  757:         return pagexml
  758:     
  759:     def getLemma(self):
  760:         """lemma"""
  761:         pagexml=self.template.fulltextclient.eval("/mpdl/interface/lt/lemma.xql","query=%s&language=%s"%(query,language),outputUnicode=False)
  762:         return pagexml
  763: 
  764:     def getToc(self, mode="text", docinfo=None):
  765:         """loads table of contents and stores in docinfo"""
  766:         logging.debug("documentViewer (gettoc) mode: %s"%(mode))
  767:         if 'tocSize_%s'%mode in docinfo:
  768:             # cached toc
  769:             return docinfo
  770:         
  771:         docpath = docinfo['textURLPath']
  772:         # we need to set a result set size
  773:         pagesize = 1000
  774:         pn = 1
  775:         if mode == "text":
  776:             queryType = "toc"
  777:         else:
  778:             queryType = mode
  779:         # number of entries in toc
  780:         tocSize = 0
  781:         tocDiv = None
  782:         pagexml=self.template.fulltextclient.eval("/mpdl/interface/doc-query.xql", "document=%s&queryType=%s&queryResultPageSize=%s&queryResultPN=%s"%(docpath,queryType,pagesize,pn), outputUnicode=False)
  783:         # post-processing downloaded xml
  784:         pagedom = Parse(pagexml)
  785:         # get number of entries
  786:         numdivs = pagedom.xpath("//div[@class='queryResultHits']")
  787:         if len(numdivs) > 0:
  788:             tocSize = int(getTextFromNode(numdivs[0]))
  789:             # div contains text
  790:             #pagedivs = pagedom.xpath("//div[@class='queryResultPage']")
  791:             #if len(pagedivs) > 0:
  792:             #    tocDiv = pagedivs[0]
  793: 
  794:         docinfo['tocSize_%s'%mode] = tocSize
  795:         #docinfo['tocDiv_%s'%mode] = tocDiv
  796:         return docinfo
  797:     
  798:     def getTocPage(self, mode="text", pn=1, pageinfo=None, docinfo=None):
  799:         """returns single page from the table of contents"""
  800:         # TODO: this should use the cached TOC
  801:         if mode == "text":
  802:             queryType = "toc"
  803:         else:
  804:             queryType = mode
  805:         docpath = docinfo['textURLPath']
  806:         pagesize = pageinfo['tocPageSize']
  807:         pn = pageinfo['tocPN']
  808:         
  809:         selfurl = self.absolute_url()  
  810:         viewMode=  pageinfo['viewMode']
  811:         tocMode = pageinfo['tocMode']
  812:         tocPN = pageinfo['tocPN']
  813:     
  814:         pagexml=self.template.fulltextclient.eval("/mpdl/interface/doc-query.xql", "document=%s&queryType=%s&queryResultPageSize=%s&queryResultPN=%s"%(docpath,queryType, pagesize, pn), outputUnicode=False)
  815:         page = pagexml.replace('page-fragment.xql?document=/echo/la/Benedetti_1585.xml','%s?url=/mpiwg/online/permanent/library/163127KK&viewMode=%s&tocMode=%s&tocPN=%s'%(selfurl, viewMode, tocMode, tocPN))
  816:         text = page.replace('mode=image','mode=texttool')
  817:         return text
  818:         # post-processing downloaded xml
  819:         #pagedom = Parse(text)
  820:         # div contains text
  821:         #pagedivs = pagedom.xpath("//div[@class='queryResultPage']")
  822:         #if len(pagedivs) > 0:
  823:         #    pagenode = pagedivs[0]
  824:         #    return serializeNode(pagenode)
  825:         #else:
  826:         #    return "No TOC!"
  827: 
  828:     
  829:     def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  830:         """init document viewer"""
  831:         self.title=title
  832:         self.digilibBaseUrl = digilibBaseUrl
  833:         self.thumbrows = thumbrows
  834:         self.thumbcols = thumbcols
  835:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  836:         if RESPONSE is not None:
  837:             RESPONSE.redirect('manage_main')
  838:     
  839:     
  840:         
  841: def manage_AddDocumentViewerForm(self):
  842:     """add the viewer form"""
  843:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  844:     return pt()
  845:   
  846: def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
  847:     """add the viewer"""
  848:     newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
  849:     self._setObject(id,newObj)
  850:     
  851:     if RESPONSE is not None:
  852:         RESPONSE.redirect('manage_main')
  853: 
  854: 
  855: ##
  856: ## DocumentViewerTemplate class
  857: ##
  858: class DocumentViewerTemplate(ZopePageTemplate):
  859:     """Template for document viewer"""
  860:     meta_type="DocumentViewer Template"
  861: 
  862: 
  863: def manage_addDocumentViewerTemplateForm(self):
  864:     """Form for adding"""
  865:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  866:     return pt()
  867: 
  868: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  869:                            REQUEST=None, submit=None):
  870:     "Add a Page Template with optional file content."
  871: 
  872:     self._setObject(id, DocumentViewerTemplate(id))
  873:     ob = getattr(self, id)
  874:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  875:     logging.info("txt %s:"%txt)
  876:     ob.pt_edit(txt,"text/html")
  877:     if title:
  878:         ob.pt_setTitle(title)
  879:     try:
  880:         u = self.DestinationURL()
  881:     except AttributeError:
  882:         u = REQUEST['URL1']
  883:         
  884:     u = "%s/%s" % (u, urllib.quote(id))
  885:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  886:     return ''
  887: 
  888: 
  889:     

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