File:  [Repository] / documentViewer / documentViewer.py
Revision 1.148: download - view: text, annotated - select for diffs - revision graph
Fri Oct 29 12:53:45 2010 UTC (13 years, 7 months ago) by abukhman
Branches: MAIN
CVS tags: HEAD
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    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: 
   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:     def getBrowser(self):
  330:         """getBrowser the version of browser """
  331:         bt = browserCheck(self)
  332:         logging.debug("XXXXXXXXXXXXXXXX: %s"%bt)
  333:         return bt
  334:         
  335:     def findDigilibUrl(self):
  336:         """try to get the digilib URL from zogilib"""
  337:         url = self.template.zogilib.getDLBaseUrl()
  338:         return url
  339: 
  340:     def getDocumentViewerURL(self):
  341:         """returns the URL of this instance"""
  342:         return self.absolute_url()
  343:     
  344:     def getStyle(self, idx, selected, style=""):
  345:         """returns a string with the given style and append 'sel' if path == selected."""
  346:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  347:         if idx == selected:
  348:             return style + 'sel'
  349:         else:
  350:             return style
  351:     
  352:     def getLink(self,param=None,val=None):
  353:         """link to documentviewer with parameter param set to val"""
  354:         params=self.REQUEST.form.copy()
  355:         if param is not None:
  356:             if val is None:
  357:                 if params.has_key(param):
  358:                     del params[param]
  359:             else:
  360:                 params[param] = str(val)
  361:                 
  362:         if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  363:                 params["mode"] = "imagepath"
  364:                 params["url"] = getParentDir(params["url"])
  365:                 
  366:         # quote values and assemble into query string
  367:         #ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  368:         ps = urllib.urlencode(params)
  369:         url=self.REQUEST['URL1']+"?"+ps
  370:         return url
  371: 
  372:     def getLinkAmp(self,param=None,val=None):
  373:         """link to documentviewer with parameter param set to val"""
  374:         params=self.REQUEST.form.copy()
  375:         if param is not None:
  376:             if val is None:
  377:                 if params.has_key(param):
  378:                     del params[param]
  379:             else:
  380:                 params[param] = str(val)
  381:                 
  382:         # quote values and assemble into query string
  383:         logging.debug("XYXXXXX: %s"%repr(params.items()))
  384:         ps = "&amp;".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  385:         url=self.REQUEST['URL1']+"?"+ps
  386:         return url
  387:     
  388:     def getInfo_xml(self,url,mode):
  389:         """returns info about the document as XML"""
  390: 
  391:         if not self.digilibBaseUrl:
  392:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  393:         
  394:         docinfo = self.getDocinfo(mode=mode,url=url)
  395:         pt = getattr(self.template, 'info_xml')
  396:         return pt(docinfo=docinfo)
  397: 
  398:     
  399:     def isAccessible(self, docinfo):
  400:         """returns if access to the resource is granted"""
  401:         access = docinfo.get('accessType', None)
  402:         logging.debug("documentViewer (accessOK) access type %s"%access)
  403:         if access is not None and access == 'free':
  404:             logging.debug("documentViewer (accessOK) access is free")
  405:             return True
  406:         elif access is None or access in self.authgroups:
  407:             # only local access -- only logged in users
  408:             user = getSecurityManager().getUser()
  409:             logging.debug("documentViewer (accessOK) user=%s ip=%s"%(user,self.REQUEST.getClientAddr()))
  410:             if user is not None:
  411:                 #print "user: ", user
  412:                 return (user.getUserName() != "Anonymous User")
  413:             else:
  414:                 return False
  415:         
  416:         logging.error("documentViewer (accessOK) unknown access type %s"%access)
  417:         return False
  418:     
  419:                 
  420:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  421:         """gibt param von dlInfo aus"""
  422:         if docinfo is None:
  423:             docinfo = {}
  424:         
  425:         for x in range(cut):
  426:                
  427:                 path=getParentDir(path)
  428:        
  429:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  430:     
  431:         logging.debug("documentViewer (getparamfromdigilib) dirInfo from %s"%(infoUrl))
  432:         
  433:         txt = getHttpData(infoUrl)
  434:         if txt is None:
  435:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  436: 
  437:         dom = Parse(txt)
  438:         sizes=dom.xpath("//dir/size")
  439:         logging.debug("documentViewer (getparamfromdigilib) dirInfo:size"%sizes)
  440:         
  441:         if sizes:
  442:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  443:         else:
  444:             docinfo['numPages'] = 0
  445:             
  446:         # TODO: produce and keep list of image names and numbers
  447:                         
  448:         return docinfo
  449:     
  450:     def getIndexMetaPath(self,url):
  451:         """gib nur den Pfad zurueck"""
  452:         regexp = re.compile(r".*(experimental|permanent)/(.*)")
  453:         regpath = regexp.match(url)
  454:         if (regpath==None):
  455:             return ""
  456:         logging.debug("(getDomFromIndexMeta): URLXAXA: %s"%regpath.group(2))            
  457:         return ("/mpiwg/online/"+regpath.group(1)+"/"+regpath.group(2))
  458:      
  459:     
  460:     
  461:     def getIndexMetaUrl(self,url):
  462:         """returns utr  of index.meta document at url"""
  463:       
  464:         metaUrl = None
  465:         if url.startswith("http://"):
  466:             # real URL
  467:             metaUrl = url
  468:         else:
  469:             # online path
  470:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  471:             metaUrl=server+url.replace("/mpiwg/online","")
  472:             if not metaUrl.endswith("index.meta"):
  473:                 metaUrl += "/index.meta"
  474:         
  475:         return metaUrl
  476:     
  477:     def getDomFromIndexMeta(self, url):
  478:         """get dom from index meta"""
  479:         dom = None
  480:         metaUrl = self.getIndexMetaUrl(url)
  481:                 
  482:         logging.debug("(getDomFromIndexMeta): METAURL: %s"%metaUrl)
  483:         txt=getHttpData(metaUrl)
  484:         if txt is None:
  485:             raise IOError("Unable to read index meta from %s"%(url))
  486:         
  487:         dom = Parse(txt)
  488:         return dom
  489:     
  490:     def getPresentationInfoXML(self, url):
  491:         """returns dom of info.xml document at url"""
  492:         dom = None
  493:         metaUrl = None
  494:         if url.startswith("http://"):
  495:             # real URL
  496:             metaUrl = url
  497:         else:
  498:             # online path
  499:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  500:             metaUrl=server+url.replace("/mpiwg/online","")
  501:         
  502:         txt=getHttpData(metaUrl)
  503:         if txt is None:
  504:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  505:             
  506:         dom = Parse(txt)
  507:         return dom
  508:                         
  509:         
  510:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  511:         """gets authorization info from the index.meta file at path or given by dom"""
  512:         logging.debug("documentViewer (getauthinfofromindexmeta) path: %s"%(path))
  513:         
  514:         access = None
  515:         
  516:         if docinfo is None:
  517:             docinfo = {}
  518:             
  519:         if dom is None:
  520:             for x in range(cut):
  521:                 path=getParentDir(path)
  522:             dom = self.getDomFromIndexMeta(path)
  523:        
  524:         acctype = dom.xpath("//access-conditions/access/@type")
  525:         if acctype and (len(acctype)>0):
  526:             access=acctype[0].value
  527:             if access in ['group', 'institution']:
  528:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  529:             
  530:         docinfo['accessType'] = access
  531:         return docinfo
  532:     
  533:         
  534:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  535:         """gets bibliographical info from the index.meta file at path or given by dom"""
  536:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  537:         
  538:         if docinfo is None:
  539:             docinfo = {}
  540:         
  541:         if dom is None:
  542:             for x in range(cut):
  543:                 path=getParentDir(path)
  544:             dom = self.getDomFromIndexMeta(path)
  545:         
  546:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  547:         
  548:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  549:         # put in all raw bib fields as dict "bib"
  550:         bib = dom.xpath("//bib/*")
  551:         if bib and len(bib)>0:
  552:             bibinfo = {}
  553:             for e in bib:
  554:                 bibinfo[e.localName] = getTextFromNode(e)
  555:             docinfo['bib'] = bibinfo
  556:         
  557:         # extract some fields (author, title, year) according to their mapping
  558:         metaData=self.metadata.main.meta.bib
  559:         bibtype=dom.xpath("//bib/@type")
  560:         if bibtype and (len(bibtype)>0):
  561:             bibtype=bibtype[0].value
  562:         else:
  563:             bibtype="generic"
  564:             
  565:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  566:         docinfo['bib_type'] = bibtype
  567:         bibmap=metaData.generateMappingForType(bibtype)
  568:         logging.debug("documentViewer (getbibinfofromindexmeta) bibmap:"+repr(bibmap))
  569:         logging.debug("documentViewer (getbibinfofromindexmeta) bibtype:"+repr(bibtype))
  570:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  571:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  572:             try:
  573:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  574:             except: pass
  575:             try:
  576:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  577:             except: pass
  578:             try:
  579:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  580:             except: pass
  581:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  582:             try:
  583:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  584:             except:
  585:                 docinfo['lang']=''
  586: 
  587:         return docinfo
  588:     
  589:      
  590:     def getNameFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  591:         """gets name info from the index.meta file at path or given by dom"""
  592:         if docinfo is None:
  593:             docinfo = {}
  594:         
  595:         if dom is None:
  596:             for x in range(cut):
  597:                 path=getParentDir(path)
  598:             dom = self.getDomFromIndexMeta(path)
  599: 
  600:         docinfo['name']=getTextFromNode(dom.xpath("/resource/name")[0])
  601:         logging.debug("documentViewer docinfo[name] %s"%docinfo['name'])
  602:         return docinfo
  603:     
  604:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  605:         """parse texttool tag in index meta"""
  606:         logging.debug("documentViewer (getdocinfofromtexttool) url: %s" % (url))
  607:         if docinfo is None:
  608:            docinfo = {}
  609:         if docinfo.get('lang', None) is None:
  610:             docinfo['lang'] = '' # default keine Sprache gesetzt
  611:         if dom is None:
  612:             dom = self.getDomFromIndexMeta(url)
  613:         
  614:         archivePath = None
  615:         archiveName = None
  616:     
  617:         archiveNames = dom.xpath("//resource/name")
  618:         if archiveNames and (len(archiveNames) > 0):
  619:             archiveName = getTextFromNode(archiveNames[0])
  620:         else:
  621:             logging.warning("documentViewer (getdocinfofromtexttool) resource/name missing in: %s" % (url))
  622:         
  623:         archivePaths = dom.xpath("//resource/archive-path")
  624:         if archivePaths and (len(archivePaths) > 0):
  625:             archivePath = getTextFromNode(archivePaths[0])
  626:             # clean up archive path
  627:             if archivePath[0] != '/':
  628:                 archivePath = '/' + archivePath
  629:             if archiveName and (not archivePath.endswith(archiveName)):
  630:                 archivePath += "/" + archiveName
  631:         else:
  632:             # try to get archive-path from url
  633:             logging.warning("documentViewer (getdocinfofromtexttool) resource/archive-path missing in: %s" % (url))
  634:             if (not url.startswith('http')):
  635:                 archivePath = url.replace('index.meta', '')
  636:                 
  637:         if archivePath is None:
  638:             # we balk without archive-path
  639:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  640:         
  641:         imageDirs = dom.xpath("//texttool/image")
  642:         if imageDirs and (len(imageDirs) > 0):
  643:             imageDir = getTextFromNode(imageDirs[0])
  644:             
  645:         else:
  646:             # we balk with no image tag / not necessary anymore because textmode is now standard
  647:             #raise IOError("No text-tool info in %s"%(url))
  648:             imageDir = ""
  649:             #xquery="//pb"  
  650:             docinfo['imagePath'] = "" # keine Bilder
  651:             docinfo['imageURL'] = ""
  652:             
  653:         if imageDir and archivePath:
  654:             #print "image: ", imageDir, " archivepath: ", archivePath
  655:             imageDir = os.path.join(archivePath, imageDir)
  656:             imageDir = imageDir.replace("/mpiwg/online", '')
  657:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  658:             docinfo['imagePath'] = imageDir
  659:             
  660:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  661:             
  662:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  663:         if viewerUrls and (len(viewerUrls) > 0):
  664:             viewerUrl = getTextFromNode(viewerUrls[0])
  665:             docinfo['viewerURL'] = viewerUrl
  666:         
  667:         # old style text URL
  668:         textUrls = dom.xpath("//texttool/text")
  669:         if textUrls and (len(textUrls) > 0):
  670:             textUrl = getTextFromNode(textUrls[0])
  671:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  672:                 textUrl = os.path.join(archivePath, textUrl) 
  673:             # fix URLs starting with /mpiwg/online
  674:             if textUrl.startswith("/mpiwg/online"):
  675:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  676:             
  677:             docinfo['textURL'] = textUrl
  678:     
  679:         # new style text-url-path
  680:         textUrls = dom.xpath("//texttool/text-url-path")
  681:         if textUrls and (len(textUrls) > 0):
  682:             textUrl = getTextFromNode(textUrls[0])
  683:             docinfo['textURLPath'] = textUrl
  684:             if not docinfo['imagePath']:
  685:                 # text-only, no page images
  686:                 docinfo = self.getNumTextPages(docinfo)
  687:          
  688:         presentationUrls = dom.xpath("//texttool/presentation")
  689:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  690:         docinfo = self.getNameFromIndexMeta(url, docinfo=docinfo, dom=dom)
  691:         
  692:         
  693:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  694:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  695:              # durch den relativen Pfad auf die presentation infos
  696:             presentationPath = getTextFromNode(presentationUrls[0])
  697:             if url.endswith("index.meta"): 
  698:                 presentationUrl = url.replace('index.meta', presentationPath)
  699:             else:
  700:                 presentationUrl = url + "/" + presentationPath
  701:                 
  702:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  703:     
  704:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  705:         
  706:         return docinfo
  707:    
  708:    
  709:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  710:         """gets the bibliographical information from the preseantion entry in texttools
  711:         """
  712:         dom=self.getPresentationInfoXML(url)
  713:         try:
  714:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  715:         except:
  716:             pass
  717:         try:
  718:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  719:         except:
  720:             pass
  721:         try:
  722:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  723:         except:
  724:             pass
  725:         return docinfo
  726:     
  727:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  728:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  729:         logging.debug("documentViewer (getdocinfofromimagepath) path: %s"%(path))
  730:         if docinfo is None:
  731:             docinfo = {}
  732:         path=path.replace("/mpiwg/online","")
  733:         docinfo['imagePath'] = path
  734:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  735:         
  736:         pathorig=path
  737:         for x in range(cut):       
  738:                 path=getParentDir(path)
  739:         logging.debug("documentViewer (getdocinfofromimagepath) PATH:"+path)
  740:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  741:         docinfo['imageURL'] = imageUrl
  742:         
  743:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  744:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  745:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  746:         return docinfo
  747:     
  748:     
  749:     def getDocinfo(self, mode, url):
  750:         """returns docinfo depending on mode"""
  751:         logging.debug("documentViewer (getdocinfo) mode: %s, url: %s"%(mode,url))
  752:         # look for cached docinfo in session
  753:         if self.REQUEST.SESSION.has_key('docinfo'):
  754:             docinfo = self.REQUEST.SESSION['docinfo']
  755:             # check if its still current
  756:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  757:                 logging.debug("documentViewer (getdocinfo) docinfo in session: %s"%docinfo)
  758:                 return docinfo
  759:         # new docinfo
  760:         docinfo = {'mode': mode, 'url': url}
  761:         if mode=="texttool": #index.meta with texttool information
  762:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  763:         elif mode=="imagepath":
  764:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  765:         elif mode=="filepath":
  766:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  767:         else:
  768:             logging.error("documentViewer (getdocinfo) unknown mode: %s!"%mode)
  769:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  770:                         
  771:         logging.debug("documentViewer (getdocinfo) docinfo: %s"%docinfo)
  772:         #logging.debug("documentViewer (getdocinfo) docinfo: %s"%)
  773:         self.REQUEST.SESSION['docinfo'] = docinfo
  774:         return docinfo
  775:                
  776:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None,characterNormalization=""):
  777:         """returns pageinfo with the given parameters"""
  778:         pageinfo = {}
  779:         current = getInt(current)
  780:     
  781:         pageinfo['current'] = current
  782:         rows = int(rows or self.thumbrows)
  783:         pageinfo['rows'] = rows
  784:         cols = int(cols or self.thumbcols)
  785:         pageinfo['cols'] = cols
  786:         grpsize = cols * rows
  787:         pageinfo['groupsize'] = grpsize
  788:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  789:         # int(current / grpsize) * grpsize +1))
  790:         pageinfo['start'] = start
  791:         pageinfo['end'] = start + grpsize
  792:         if (docinfo is not None) and ('numPages' in docinfo):
  793:             np = int(docinfo['numPages'])
  794:             pageinfo['end'] = min(pageinfo['end'], np)
  795:             pageinfo['numgroups'] = int(np / grpsize)
  796:             if np % grpsize > 0:
  797:                 pageinfo['numgroups'] += 1        
  798:         pageinfo['viewMode'] = viewMode
  799:         pageinfo['tocMode'] = tocMode
  800:         #pageinfo ['originalPage'] = self.getOrigPages(docinfo=None, pageinfo=None)
  801:         pageinfo['characterNormalization'] = self.REQUEST.get('characterNormalization','')
  802:         pageinfo['query'] = self.REQUEST.get('query','')
  803:         pageinfo['queryType'] = self.REQUEST.get('queryType','')
  804:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  805:         pageinfo['textPN'] = self.REQUEST.get('textPN','1')
  806:         pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
  807:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  808:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
  809:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
  810:         toc = int (pageinfo['tocPN'])
  811:         pageinfo['textPages'] =int (toc)
  812:         
  813:         
  814:         
  815:         if 'tocSize_%s'%tocMode in docinfo:
  816:             tocSize = int(docinfo['tocSize_%s'%tocMode])
  817:             tocPageSize = int(pageinfo['tocPageSize'])
  818:             # cached toc           
  819:             if tocSize%tocPageSize>0:
  820:                 tocPages=tocSize/tocPageSize+1
  821:             else:
  822:                 tocPages=tocSize/tocPageSize
  823:             pageinfo['tocPN'] = min (tocPages,toc)                    
  824:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  825:         pageinfo['sn'] =self.REQUEST.get('sn','')
  826:         return pageinfo
  827:     
  828: def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  829:         """init document viewer"""
  830:         self.title=title
  831:         self.digilibBaseUrl = digilibBaseUrl
  832:         self.thumbrows = thumbrows
  833:         self.thumbcols = thumbcols
  834:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  835:         if RESPONSE is not None:
  836:             RESPONSE.redirect('manage_main')
  837:         
  838: def manage_AddDocumentViewerForm(self):
  839:     """add the viewer form"""
  840:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  841:     return pt()
  842:   
  843: def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
  844:     """add the viewer"""
  845:     newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
  846:     self._setObject(id,newObj)
  847:     
  848:     if RESPONSE is not None:
  849:         RESPONSE.redirect('manage_main')
  850: 
  851: ## DocumentViewerTemplate class
  852: class DocumentViewerTemplate(ZopePageTemplate):
  853:     """Template for document viewer"""
  854:     meta_type="DocumentViewer Template"
  855: 
  856: 
  857: def manage_addDocumentViewerTemplateForm(self):
  858:     """Form for adding"""
  859:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  860:     return pt()
  861: 
  862: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  863:                            REQUEST=None, submit=None):
  864:     "Add a Page Template with optional file content."
  865: 
  866:     self._setObject(id, DocumentViewerTemplate(id))
  867:     ob = getattr(self, id)
  868:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  869:     logging.info("txt %s:"%txt)
  870:     ob.pt_edit(txt,"text/html")
  871:     if title:
  872:         ob.pt_setTitle(title)
  873:     try:
  874:         u = self.DestinationURL()
  875:     except AttributeError:
  876:         u = REQUEST['URL1']
  877:         
  878:     u = "%s/%s" % (u, urllib.quote(id))
  879:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  880:     return ''
  881: 
  882: 
  883:     

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