File:  [Repository] / documentViewer / documentViewer.py
Revision 1.150: download - view: text, annotated - select for diffs - revision graph
Tue Nov 2 15:11:43 2010 UTC (13 years, 7 months ago) by abukhman
Branches: MAIN
CVS tags: HEAD
*** empty log message ***

    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: from Products.zogiLib.zogiLib import browserCheck
    9: 
   10: from Ft.Xml import EMPTY_NAMESPACE, Parse
   11: import Ft.Xml.Domlette
   12: import os.path
   13: import sys
   14: import urllib
   15: import urllib2
   16: import logging
   17: import math
   18: import urlparse 
   19: import cStringIO
   20: import re
   21: import string
   22: 
   23: def logger(txt,method,txt2):
   24:     """logging"""
   25:     logging.info(txt+ txt2)
   26:     
   27:     
   28: def getInt(number, default=0):
   29:     """returns always an int (0 in case of problems)"""
   30:     try:
   31:         return int(number)
   32:     except:
   33:         return int(default)
   34: 
   35: def getTextFromNode(nodename):
   36:     """get the cdata content of a node"""
   37:     if nodename is None:
   38:         return ""
   39:     nodelist=nodename.childNodes
   40:     rc = ""
   41:     for node in nodelist:
   42:         if node.nodeType == node.TEXT_NODE:
   43:            rc = rc + node.data
   44:     return rc
   45: 
   46: def serializeNode(node, encoding='utf-8'):
   47:     """returns a string containing node as XML"""
   48:     buf = cStringIO.StringIO()
   49:     Ft.Xml.Domlette.Print(node, stream=buf, encoding=encoding)
   50:     s = buf.getvalue()
   51:     buf.close()
   52:     return s
   53: 
   54: def browserCheck(self):
   55:     """check the browsers request to find out the browser type"""
   56:     bt = {}
   57:     ua = self.REQUEST.get_header("HTTP_USER_AGENT")
   58:     bt['ua'] = ua
   59:     bt['isIE'] = False
   60:     bt['isN4'] = False
   61:     if string.find(ua, 'MSIE') > -1:
   62:         bt['isIE'] = True
   63:     else:
   64:         bt['isN4'] = (string.find(ua, 'Mozilla/4.') > -1)
   65:         
   66:     try:
   67:         nav = ua[string.find(ua, '('):]
   68:         ie = string.split(nav, "; ")[1]
   69:         if string.find(ie, "MSIE") > -1:
   70:             bt['versIE'] = string.split(ie, " ")[1]
   71:     except: pass
   72:     
   73:     bt['isMac'] = string.find(ua, 'Macintosh') > -1
   74:     bt['isWin'] = string.find(ua, 'Windows') > -1
   75:     bt['isIEWin'] = bt['isIE'] and bt['isWin']
   76:     bt['isIEMac'] = bt['isIE'] and bt['isMac']
   77:     bt['staticHTML'] = False
   78: 
   79:     return bt
   80: 
   81:        
   82: def getParentDir(path):
   83:     """returns pathname shortened by one"""
   84:     return '/'.join(path.split('/')[0:-1])
   85:         
   86: 
   87: def getHttpData(url, data=None, num_tries=3, timeout=10):
   88:     """returns result from url+data HTTP request"""
   89:     # we do GET (by appending data to url)
   90:     if isinstance(data, str) or isinstance(data, unicode):
   91:         # if data is string then append
   92:         url = "%s?%s"%(url,data)
   93:     elif isinstance(data, dict) or isinstance(data, list) or isinstance(data, tuple):
   94:         # urlencode
   95:         url = "%s?%s"%(url,urllib.urlencode(data))
   96:     
   97:     response = None
   98:     errmsg = None
   99:     for cnt in range(num_tries):
  100:         try:
  101:             logging.debug("getHttpData(#%s %ss) url=%s"%(cnt+1,timeout,url))
  102:             if sys.version_info < (2, 6):
  103:                 # set timeout on socket -- ugly :-(
  104:                 import socket
  105:                 socket.setdefaulttimeout(float(timeout))
  106:                 response = urllib2.urlopen(url)
  107:             else:
  108:                 response = urllib2.urlopen(url,timeout=float(timeout))
  109:             # check result?
  110:             break
  111:         except urllib2.HTTPError, e:
  112:             logging.error("getHttpData: HTTP error(%s): %s"%(e.code,e))
  113:             errmsg = str(e)
  114:             # stop trying
  115:             break
  116:         except urllib2.URLError, e:
  117:             logging.error("getHttpData: URLLIB error(%s): %s"%(e.reason,e))
  118:             errmsg = str(e)
  119:             # stop trying
  120:             #break
  121: 
  122:     if response is not None:
  123:         data = response.read()
  124:         response.close()
  125:         return data
  126:     
  127:     raise IOError("ERROR fetching HTTP data from %s: %s"%(url,errmsg))
  128:     #return None
  129: 
  130: 
  131: 
  132: ##
  133: ## documentViewer class
  134: ##
  135: class documentViewer(Folder):
  136:     """document viewer"""
  137:     meta_type="Document viewer"
  138:     
  139:     security=ClassSecurityInfo()
  140:     manage_options=Folder.manage_options+(
  141:         {'label':'main config','action':'changeDocumentViewerForm'},
  142:         )
  143: 
  144:     # templates and forms
  145:     viewer_main = PageTemplateFile('zpt/viewer_main', globals())
  146:     toc_thumbs = PageTemplateFile('zpt/toc_thumbs', globals())
  147:     toc_text = PageTemplateFile('zpt/toc_text', globals())
  148:     toc_figures = PageTemplateFile('zpt/toc_figures', globals())
  149:     page_main_images = PageTemplateFile('zpt/page_main_images', globals())
  150:     page_main_text = PageTemplateFile('zpt/page_main_text', globals())
  151:     page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
  152:     page_main_gis =PageTemplateFile ('zpt/page_main_gis', globals())
  153:     page_main_xml = PageTemplateFile('zpt/page_main_xml', globals())
  154:     head_main = PageTemplateFile('zpt/head_main', globals())
  155:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
  156:     info_xml = PageTemplateFile('zpt/info_xml', globals())
  157:     
  158:     
  159:     thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
  160:     security.declareProtected('View management screens','changeDocumentViewerForm')    
  161:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
  162: 
  163:     
  164:     def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
  165:         """init document viewer"""
  166:         self.id=id
  167:         self.title=title
  168:         self.thumbcols = thumbcols
  169:         self.thumbrows = thumbrows
  170:         # authgroups is list of authorized groups (delimited by ,)
  171:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  172:         # create template folder so we can always use template.something
  173:         
  174:         templateFolder = Folder('template')
  175:         #self['template'] = templateFolder # Zope-2.12 style
  176:         self._setObject('template',templateFolder) # old style
  177:         try:
  178:             import MpdlXmlTextServer
  179:             textServer = MpdlXmlTextServer.MpdlXmlTextServer(id='fulltextclient',serverName=textServerName)
  180:             #templateFolder['fulltextclient'] = xmlRpcClient
  181:             templateFolder._setObject('fulltextclient',textServer)
  182:         except Exception, e:
  183:             logging.error("Unable to create MpdlXmlTextServer for fulltextclient: "+str(e))
  184:         try:
  185:             from Products.zogiLib.zogiLib import zogiLib
  186:             zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
  187:             #templateFolder['zogilib'] = zogilib
  188:             templateFolder._setObject('zogilib',zogilib)
  189:         except Exception, e:
  190:             logging.error("Unable to create zogiLib for zogilib: "+str(e))
  191:         
  192:         
  193:     # proxy text server methods to fulltextclient
  194:     def getTextPage(self, **args):
  195:         """get page"""
  196:         return self.template.fulltextclient.getTextPage(**args)
  197: 
  198:     def getQuery(self, **args):
  199:         """get query"""
  200:         return self.template.fulltextclient.getQuery(**args)
  201:     
  202:     def getPDF(self, **args):
  203:         """get query"""
  204:         return self.template.fulltextclient.getPDF(**args)
  205: 
  206:     def getSearch(self, **args):
  207:         """get search"""
  208:         return self.template.fulltextclient.getSearch(**args)
  209:     
  210:     def getGisPlaces(self, **args):
  211:         """get gis places"""
  212:         return self.template.fulltextclient.getGisPlaces(**args)
  213:  
  214:     def getAllGisPlaces(self, **args):
  215:         """get all gis places """
  216:         return self.template.fulltextclient.getAllGisPlaces(**args)
  217:     
  218:     def getOrigPages(self, **args):
  219:         """get original page number """
  220:         return self.template.fulltextclient.getOrigPages(**args)
  221:     
  222:     def getNumPages(self, docinfo):
  223:         """get numpages"""
  224:         return self.template.fulltextclient.getNumPages(docinfo)
  225:    
  226:     def getNumTextPages(self, docinfo):
  227:         """get numpages text"""
  228:         return self.template.fulltextclient.getNumTextPages(docinfo)
  229:    
  230:     def getTranslate(self, **args):
  231:         """get translate"""
  232:         return self.template.fulltextclient.getTranslate(**args)
  233: 
  234:     def getLemma(self, **args):
  235:         """get lemma"""
  236:         return self.template.fulltextclient.getLemma(**args)
  237: 
  238:     def getToc(self, **args):
  239:         """get toc"""
  240:         return self.template.fulltextclient.getToc(**args)
  241: 
  242:     def getTocPage(self, **args):
  243:         """get tocpage"""
  244:         return self.template.fulltextclient.getTocPage(**args)
  245: 
  246:     
  247:     security.declareProtected('View','thumbs_rss')
  248:     def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
  249:         '''
  250:         view it
  251:         @param mode: defines how to access the document behind url 
  252:         @param url: url which contains display information
  253:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  254:         
  255:         '''
  256:         logging.debug("HHHHHHHHHHHHHH:load the rss")
  257:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  258:         
  259:         if not hasattr(self, 'template'):
  260:             # create template folder if it doesn't exist
  261:             self.manage_addFolder('template')
  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:         #pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  268:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo)
  269:         ''' ZDES '''
  270:         pt = getattr(self.template, 'thumbs_main_rss')
  271:         
  272:         if viewMode=="auto": # automodus gewaehlt
  273:             if docinfo.has_key("textURL") or docinfo.has_key('textURLPath'): #texturl gesetzt und textViewer konfiguriert
  274:                 viewMode="text"
  275:             else:
  276:                 viewMode="images"
  277:                
  278:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  279:   
  280:     security.declareProtected('View','index_html')
  281:     def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None, query=None, querySearch=None, characterNormalization=""):
  282:         '''
  283:         view it
  284:         @param mode: defines how to access the document behind url 
  285:         @param url: url which contains display information
  286:         @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
  287:         @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, none)
  288:         @param characterNormalization type of text display (reg, norm, none)
  289:         @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph, fulltextMorphLemma)
  290:         '''
  291:         
  292:         logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  293:         
  294:         if not hasattr(self, 'template'):
  295:             # this won't work
  296:             logging.error("template folder missing!")
  297:             return "ERROR: template folder missing!"
  298:             
  299:         if not getattr(self, 'digilibBaseUrl', None):
  300:             self.digilibBaseUrl = self.findDigilibUrl() or "http://digilib.mpiwg-berlin.mpg.de/digitallibrary"
  301:             
  302:         docinfo = self.getDocinfo(mode=mode,url=url)
  303:         
  304:         if tocMode != "thumbs":
  305:             # get table of contents
  306:             docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
  307:             
  308:         if viewMode=="auto": # automodus gewaehlt
  309:             if docinfo.has_key('textURL') or docinfo.has_key('textURLPath'): #texturl gesetzt und textViewer konfiguriert
  310:                 viewMode="text_dict"
  311:             else:
  312:                 viewMode="images"
  313:                 
  314:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
  315:         
  316:         pt = getattr(self.template, 'viewer_main')               
  317:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
  318:   
  319:     def generateMarks(self,mk):
  320:         ret=""
  321:         if mk is None:
  322:             return ""
  323:         if not isinstance(mk, list):
  324:             mk=[mk]
  325:         for m in mk:
  326:             ret+="mk=%s"%m
  327:         return ret
  328:     
  329:     
  330:     def getBrowser(self):
  331:         """getBrowser the version of browser """
  332:         names=""
  333:         names = browserCheck(self)
  334:         #logging.debug("XXXXXXXXXXXXXXXX: %s"%names)
  335:         return names
  336:         
  337:     def findDigilibUrl(self):
  338:         """try to get the digilib URL from zogilib"""
  339:         url = self.template.zogilib.getDLBaseUrl()
  340:         return url
  341: 
  342:     def getDocumentViewerURL(self):
  343:         """returns the URL of this instance"""
  344:         return self.absolute_url()
  345:     
  346:     def getStyle(self, idx, selected, style=""):
  347:         """returns a string with the given style and append 'sel' if path == selected."""
  348:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  349:         if idx == selected:
  350:             return style + 'sel'
  351:         else:
  352:             return style
  353:     
  354:     def getLink(self,param=None,val=None):
  355:         """link to documentviewer with parameter param set to val"""
  356:         params=self.REQUEST.form.copy()
  357:         if param is not None:
  358:             if val is None:
  359:                 if params.has_key(param):
  360:                     del params[param]
  361:             else:
  362:                 params[param] = str(val)
  363:                 
  364:         if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  365:                 params["mode"] = "imagepath"
  366:                 params["url"] = getParentDir(params["url"])
  367:                 
  368:         # quote values and assemble into query string
  369:         #ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  370:         ps = urllib.urlencode(params)
  371:         url=self.REQUEST['URL1']+"?"+ps
  372:         return url
  373: 
  374:     def getLinkAmp(self,param=None,val=None):
  375:         """link to documentviewer with parameter param set to val"""
  376:         params=self.REQUEST.form.copy()
  377:         if param is not None:
  378:             if val is None:
  379:                 if params.has_key(param):
  380:                     del params[param]
  381:             else:
  382:                 params[param] = str(val)
  383:                 
  384:         # quote values and assemble into query string
  385:         logging.debug("XYXXXXX: %s"%repr(params.items()))
  386:         ps = "&amp;".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  387:         url=self.REQUEST['URL1']+"?"+ps
  388:         return url
  389:     
  390:     def getInfo_xml(self,url,mode):
  391:         """returns info about the document as XML"""
  392: 
  393:         if not self.digilibBaseUrl:
  394:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  395:         
  396:         docinfo = self.getDocinfo(mode=mode,url=url)
  397:         pt = getattr(self.template, 'info_xml')
  398:         return pt(docinfo=docinfo)
  399: 
  400:     
  401:     def isAccessible(self, docinfo):
  402:         """returns if access to the resource is granted"""
  403:         access = docinfo.get('accessType', None)
  404:         logging.debug("documentViewer (accessOK) access type %s"%access)
  405:         if access is not None and access == 'free':
  406:             logging.debug("documentViewer (accessOK) access is free")
  407:             return True
  408:         elif access is None or access in self.authgroups:
  409:             # only local access -- only logged in users
  410:             user = getSecurityManager().getUser()
  411:             logging.debug("documentViewer (accessOK) user=%s ip=%s"%(user,self.REQUEST.getClientAddr()))
  412:             if user is not None:
  413:                 #print "user: ", user
  414:                 return (user.getUserName() != "Anonymous User")
  415:             else:
  416:                 return False
  417:         
  418:         logging.error("documentViewer (accessOK) unknown access type %s"%access)
  419:         return False
  420:     
  421:                 
  422:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  423:         """gibt param von dlInfo aus"""
  424:         if docinfo is None:
  425:             docinfo = {}
  426:         
  427:         for x in range(cut):
  428:                
  429:                 path=getParentDir(path)
  430:        
  431:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  432:     
  433:         logging.debug("documentViewer (getparamfromdigilib) dirInfo from %s"%(infoUrl))
  434:         
  435:         txt = getHttpData(infoUrl)
  436:         if txt is None:
  437:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  438: 
  439:         dom = Parse(txt)
  440:         sizes=dom.xpath("//dir/size")
  441:         logging.debug("documentViewer (getparamfromdigilib) dirInfo:size"%sizes)
  442:         
  443:         if sizes:
  444:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  445:         else:
  446:             docinfo['numPages'] = 0
  447:             
  448:         # TODO: produce and keep list of image names and numbers
  449:                         
  450:         return docinfo
  451:     
  452:     def getIndexMetaPath(self,url):
  453:         """gib nur den Pfad zurueck"""
  454:         regexp = re.compile(r".*(experimental|permanent)/(.*)")
  455:         regpath = regexp.match(url)
  456:         if (regpath==None):
  457:             return ""
  458:         logging.debug("(getDomFromIndexMeta): URLXAXA: %s"%regpath.group(2))            
  459:         return ("/mpiwg/online/"+regpath.group(1)+"/"+regpath.group(2))
  460:      
  461:     
  462:     
  463:     def getIndexMetaUrl(self,url):
  464:         """returns utr  of index.meta document at url"""
  465:       
  466:         metaUrl = None
  467:         if url.startswith("http://"):
  468:             # real URL
  469:             metaUrl = url
  470:         else:
  471:             # online path
  472:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  473:             metaUrl=server+url.replace("/mpiwg/online","")
  474:             if not metaUrl.endswith("index.meta"):
  475:                 metaUrl += "/index.meta"
  476:         
  477:         return metaUrl
  478:     
  479:     def getDomFromIndexMeta(self, url):
  480:         """get dom from index meta"""
  481:         dom = None
  482:         metaUrl = self.getIndexMetaUrl(url)
  483:                 
  484:         logging.debug("(getDomFromIndexMeta): METAURL: %s"%metaUrl)
  485:         txt=getHttpData(metaUrl)
  486:         if txt is None:
  487:             raise IOError("Unable to read index meta from %s"%(url))
  488:         
  489:         dom = Parse(txt)
  490:         return dom
  491:     
  492:     def getPresentationInfoXML(self, url):
  493:         """returns dom of info.xml document at url"""
  494:         dom = None
  495:         metaUrl = None
  496:         if url.startswith("http://"):
  497:             # real URL
  498:             metaUrl = url
  499:         else:
  500:             # online path
  501:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  502:             metaUrl=server+url.replace("/mpiwg/online","")
  503:         
  504:         txt=getHttpData(metaUrl)
  505:         if txt is None:
  506:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  507:             
  508:         dom = Parse(txt)
  509:         return dom
  510:                         
  511:         
  512:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  513:         """gets authorization info from the index.meta file at path or given by dom"""
  514:         logging.debug("documentViewer (getauthinfofromindexmeta) path: %s"%(path))
  515:         
  516:         access = None
  517:         
  518:         if docinfo is None:
  519:             docinfo = {}
  520:             
  521:         if dom is None:
  522:             for x in range(cut):
  523:                 path=getParentDir(path)
  524:             dom = self.getDomFromIndexMeta(path)
  525:        
  526:         acctype = dom.xpath("//access-conditions/access/@type")
  527:         if acctype and (len(acctype)>0):
  528:             access=acctype[0].value
  529:             if access in ['group', 'institution']:
  530:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  531:             
  532:         docinfo['accessType'] = access
  533:         return docinfo
  534:     
  535:         
  536:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  537:         """gets bibliographical info from the index.meta file at path or given by dom"""
  538:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  539:         
  540:         if docinfo is None:
  541:             docinfo = {}
  542:         
  543:         if dom is None:
  544:             for x in range(cut):
  545:                 path=getParentDir(path)
  546:             dom = self.getDomFromIndexMeta(path)
  547:         
  548:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  549:         
  550:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  551:         # put in all raw bib fields as dict "bib"
  552:         bib = dom.xpath("//bib/*")
  553:         if bib and len(bib)>0:
  554:             bibinfo = {}
  555:             for e in bib:
  556:                 bibinfo[e.localName] = getTextFromNode(e)
  557:             docinfo['bib'] = bibinfo
  558:         
  559:         # extract some fields (author, title, year) according to their mapping
  560:         metaData=self.metadata.main.meta.bib
  561:         bibtype=dom.xpath("//bib/@type")
  562:         if bibtype and (len(bibtype)>0):
  563:             bibtype=bibtype[0].value
  564:         else:
  565:             bibtype="generic"
  566:             
  567:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  568:         docinfo['bib_type'] = bibtype
  569:         bibmap=metaData.generateMappingForType(bibtype)
  570:         logging.debug("documentViewer (getbibinfofromindexmeta) bibmap:"+repr(bibmap))
  571:         logging.debug("documentViewer (getbibinfofromindexmeta) bibtype:"+repr(bibtype))
  572:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  573:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  574:             try:
  575:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  576:             except: pass
  577:             try:
  578:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  579:             except: pass
  580:             try:
  581:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  582:             except: pass
  583:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  584:             try:
  585:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  586:             except:
  587:                 docinfo['lang']=''
  588: 
  589:         return docinfo
  590:     
  591:      
  592:     def getNameFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  593:         """gets name info from the index.meta file at path or given by dom"""
  594:         if docinfo is None:
  595:             docinfo = {}
  596:         
  597:         if dom is None:
  598:             for x in range(cut):
  599:                 path=getParentDir(path)
  600:             dom = self.getDomFromIndexMeta(path)
  601: 
  602:         docinfo['name']=getTextFromNode(dom.xpath("/resource/name")[0])
  603:         logging.debug("documentViewer docinfo[name] %s"%docinfo['name'])
  604:         return docinfo
  605:     
  606:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  607:         """parse texttool tag in index meta"""
  608:         logging.debug("documentViewer (getdocinfofromtexttool) url: %s" % (url))
  609:         if docinfo is None:
  610:            docinfo = {}
  611:         if docinfo.get('lang', None) is None:
  612:             docinfo['lang'] = '' # default keine Sprache gesetzt
  613:         if dom is None:
  614:             dom = self.getDomFromIndexMeta(url)
  615:         
  616:         archivePath = None
  617:         archiveName = None
  618:     
  619:         archiveNames = dom.xpath("//resource/name")
  620:         if archiveNames and (len(archiveNames) > 0):
  621:             archiveName = getTextFromNode(archiveNames[0])
  622:         else:
  623:             logging.warning("documentViewer (getdocinfofromtexttool) resource/name missing in: %s" % (url))
  624:         
  625:         archivePaths = dom.xpath("//resource/archive-path")
  626:         if archivePaths and (len(archivePaths) > 0):
  627:             archivePath = getTextFromNode(archivePaths[0])
  628:             # clean up archive path
  629:             if archivePath[0] != '/':
  630:                 archivePath = '/' + archivePath
  631:             if archiveName and (not archivePath.endswith(archiveName)):
  632:                 archivePath += "/" + archiveName
  633:         else:
  634:             # try to get archive-path from url
  635:             logging.warning("documentViewer (getdocinfofromtexttool) resource/archive-path missing in: %s" % (url))
  636:             if (not url.startswith('http')):
  637:                 archivePath = url.replace('index.meta', '')
  638:                 
  639:         if archivePath is None:
  640:             # we balk without archive-path
  641:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  642:         
  643:         imageDirs = dom.xpath("//texttool/image")
  644:         if imageDirs and (len(imageDirs) > 0):
  645:             imageDir = getTextFromNode(imageDirs[0])
  646:             
  647:         else:
  648:             # we balk with no image tag / not necessary anymore because textmode is now standard
  649:             #raise IOError("No text-tool info in %s"%(url))
  650:             imageDir = ""
  651:             #xquery="//pb"  
  652:             docinfo['imagePath'] = "" # keine Bilder
  653:             docinfo['imageURL'] = ""
  654:             
  655:         if imageDir and archivePath:
  656:             #print "image: ", imageDir, " archivepath: ", archivePath
  657:             imageDir = os.path.join(archivePath, imageDir)
  658:             imageDir = imageDir.replace("/mpiwg/online", '')
  659:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  660:             docinfo['imagePath'] = imageDir
  661:             
  662:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  663:             
  664:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  665:         if viewerUrls and (len(viewerUrls) > 0):
  666:             viewerUrl = getTextFromNode(viewerUrls[0])
  667:             docinfo['viewerURL'] = viewerUrl
  668:         
  669:         # old style text URL
  670:         textUrls = dom.xpath("//texttool/text")
  671:         if textUrls and (len(textUrls) > 0):
  672:             textUrl = getTextFromNode(textUrls[0])
  673:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  674:                 textUrl = os.path.join(archivePath, textUrl) 
  675:             # fix URLs starting with /mpiwg/online
  676:             if textUrl.startswith("/mpiwg/online"):
  677:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  678:             
  679:             docinfo['textURL'] = textUrl
  680:     
  681:         # new style text-url-path
  682:         textUrls = dom.xpath("//texttool/text-url-path")
  683:         if textUrls and (len(textUrls) > 0):
  684:             textUrl = getTextFromNode(textUrls[0])
  685:             docinfo['textURLPath'] = textUrl
  686:             if not docinfo['imagePath']:
  687:                 # text-only, no page images
  688:                 docinfo = self.getNumTextPages(docinfo)
  689:          
  690:         presentationUrls = dom.xpath("//texttool/presentation")
  691:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  692:         docinfo = self.getNameFromIndexMeta(url, docinfo=docinfo, dom=dom)
  693:         
  694:         
  695:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  696:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  697:              # durch den relativen Pfad auf die presentation infos
  698:             presentationPath = getTextFromNode(presentationUrls[0])
  699:             if url.endswith("index.meta"): 
  700:                 presentationUrl = url.replace('index.meta', presentationPath)
  701:             else:
  702:                 presentationUrl = url + "/" + presentationPath
  703:                 
  704:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  705:     
  706:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  707:         
  708:         return docinfo
  709:    
  710:    
  711:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  712:         """gets the bibliographical information from the preseantion entry in texttools
  713:         """
  714:         dom=self.getPresentationInfoXML(url)
  715:         try:
  716:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  717:         except:
  718:             pass
  719:         try:
  720:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  721:         except:
  722:             pass
  723:         try:
  724:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  725:         except:
  726:             pass
  727:         return docinfo
  728:     
  729:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  730:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  731:         logging.debug("documentViewer (getdocinfofromimagepath) path: %s"%(path))
  732:         if docinfo is None:
  733:             docinfo = {}
  734:         path=path.replace("/mpiwg/online","")
  735:         docinfo['imagePath'] = path
  736:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  737:         
  738:         pathorig=path
  739:         for x in range(cut):       
  740:                 path=getParentDir(path)
  741:         logging.debug("documentViewer (getdocinfofromimagepath) PATH:"+path)
  742:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  743:         docinfo['imageURL'] = imageUrl
  744:         
  745:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  746:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  747:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  748:         return docinfo
  749:     
  750:     
  751:     def getDocinfo(self, mode, url):
  752:         """returns docinfo depending on mode"""
  753:         logging.debug("documentViewer (getdocinfo) mode: %s, url: %s"%(mode,url))
  754:         # look for cached docinfo in session
  755:         if self.REQUEST.SESSION.has_key('docinfo'):
  756:             docinfo = self.REQUEST.SESSION['docinfo']
  757:             # check if its still current
  758:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  759:                 logging.debug("documentViewer (getdocinfo) docinfo in session: %s"%docinfo)
  760:                 return docinfo
  761:         # new docinfo
  762:         docinfo = {'mode': mode, 'url': url}
  763:         if mode=="texttool": #index.meta with texttool information
  764:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  765:         elif mode=="imagepath":
  766:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  767:         elif mode=="filepath":
  768:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  769:         else:
  770:             logging.error("documentViewer (getdocinfo) unknown mode: %s!"%mode)
  771:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  772:                         
  773:         logging.debug("documentViewer (getdocinfo) docinfo: %s"%docinfo)
  774:         #logging.debug("documentViewer (getdocinfo) docinfo: %s"%)
  775:         self.REQUEST.SESSION['docinfo'] = docinfo
  776:         return docinfo
  777:                
  778:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None,characterNormalization=""):
  779:         """returns pageinfo with the given parameters"""
  780:         pageinfo = {}
  781:         current = getInt(current)
  782:     
  783:         pageinfo['current'] = current
  784:         rows = int(rows or self.thumbrows)
  785:         pageinfo['rows'] = rows
  786:         cols = int(cols or self.thumbcols)
  787:         pageinfo['cols'] = cols
  788:         grpsize = cols * rows
  789:         pageinfo['groupsize'] = grpsize
  790:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  791:         # int(current / grpsize) * grpsize +1))
  792:         pageinfo['start'] = start
  793:         pageinfo['end'] = start + grpsize
  794:         if (docinfo is not None) and ('numPages' in docinfo):
  795:             np = int(docinfo['numPages'])
  796:             pageinfo['end'] = min(pageinfo['end'], np)
  797:             pageinfo['numgroups'] = int(np / grpsize)
  798:             if np % grpsize > 0:
  799:                 pageinfo['numgroups'] += 1        
  800:         pageinfo['viewMode'] = viewMode
  801:         pageinfo['tocMode'] = tocMode
  802:         #pageinfo ['originalPage'] = self.getOrigPages(docinfo=None, pageinfo=None)
  803:         pageinfo['characterNormalization'] = self.REQUEST.get('characterNormalization','')
  804:         pageinfo['query'] = self.REQUEST.get('query','')
  805:         pageinfo['optionsClose']= self.REQUEST.get('optionsClose','')  
  806:         pageinfo['queryType'] = self.REQUEST.get('queryType','')
  807:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  808:         pageinfo['textPN'] = self.REQUEST.get('textPN','1')
  809:         pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
  810:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  811:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
  812:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
  813:         toc = int (pageinfo['tocPN'])
  814:         pageinfo['textPages'] =int (toc)
  815:         
  816:         
  817:         
  818:         if 'tocSize_%s'%tocMode in docinfo:
  819:             tocSize = int(docinfo['tocSize_%s'%tocMode])
  820:             tocPageSize = int(pageinfo['tocPageSize'])
  821:             # cached toc           
  822:             if tocSize%tocPageSize>0:
  823:                 tocPages=tocSize/tocPageSize+1
  824:             else:
  825:                 tocPages=tocSize/tocPageSize
  826:             pageinfo['tocPN'] = min (tocPages,toc)                    
  827:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  828:         pageinfo['sn'] =self.REQUEST.get('sn','')
  829:         return pageinfo
  830:     
  831: def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  832:         """init document viewer"""
  833:         self.title=title
  834:         self.digilibBaseUrl = digilibBaseUrl
  835:         self.thumbrows = thumbrows
  836:         self.thumbcols = thumbcols
  837:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  838:         if RESPONSE is not None:
  839:             RESPONSE.redirect('manage_main')
  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: ## DocumentViewerTemplate class
  855: class DocumentViewerTemplate(ZopePageTemplate):
  856:     """Template for document viewer"""
  857:     meta_type="DocumentViewer Template"
  858: 
  859: 
  860: def manage_addDocumentViewerTemplateForm(self):
  861:     """Form for adding"""
  862:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  863:     return pt()
  864: 
  865: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  866:                            REQUEST=None, submit=None):
  867:     "Add a Page Template with optional file content."
  868: 
  869:     self._setObject(id, DocumentViewerTemplate(id))
  870:     ob = getattr(self, id)
  871:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  872:     logging.info("txt %s:"%txt)
  873:     ob.pt_edit(txt,"text/html")
  874:     if title:
  875:         ob.pt_setTitle(title)
  876:     try:
  877:         u = self.DestinationURL()
  878:     except AttributeError:
  879:         u = REQUEST['URL1']
  880:         
  881:     u = "%s/%s" % (u, urllib.quote(id))
  882:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  883:     return ''
  884: 
  885: 
  886:     

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