File:  [Repository] / documentViewer / documentViewer.py
Revision 1.161: download - view: text, annotated - select for diffs - revision graph
Mon Dec 20 13:52:07 2010 UTC (13 years, 6 months ago) by abukhman
Branches: MAIN
CVS tags: HEAD
zwei neue Methoden

    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_double = PageTemplateFile('zpt/page_main_double', globals())
  151:     page_main_text = PageTemplateFile('zpt/page_main_text', globals())
  152:     page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
  153:     page_main_gis =PageTemplateFile ('zpt/page_main_gis', globals())
  154:     page_main_xml = PageTemplateFile('zpt/page_main_xml', globals())
  155:     page_main_pureXml = PageTemplateFile('zpt/page_main_pureXml', globals())
  156:     head_main = PageTemplateFile('zpt/head_main', globals())
  157:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
  158:     info_xml = PageTemplateFile('zpt/info_xml', globals())
  159:     
  160:     
  161:     thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
  162:     security.declareProtected('View management screens','changeDocumentViewerForm')    
  163:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
  164: 
  165:     
  166:     def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
  167:         """init document viewer"""
  168:         self.id=id
  169:         self.title=title
  170:         self.thumbcols = thumbcols
  171:         self.thumbrows = thumbrows
  172:         # authgroups is list of authorized groups (delimited by ,)
  173:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  174:         # create template folder so we can always use template.something
  175:         
  176:         templateFolder = Folder('template')
  177:         #self['template'] = templateFolder # Zope-2.12 style
  178:         self._setObject('template',templateFolder) # old style
  179:         try:
  180:             import MpdlXmlTextServer
  181:             textServer = MpdlXmlTextServer.MpdlXmlTextServer(id='fulltextclient',serverName=textServerName)
  182:             #templateFolder['fulltextclient'] = xmlRpcClient
  183:             templateFolder._setObject('fulltextclient',textServer)
  184:         except Exception, e:
  185:             logging.error("Unable to create MpdlXmlTextServer for fulltextclient: "+str(e))
  186:         try:
  187:             from Products.zogiLib.zogiLib import zogiLib
  188:             zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
  189:             #templateFolder['zogilib'] = zogilib
  190:             templateFolder._setObject('zogilib',zogilib)
  191:         except Exception, e:
  192:             logging.error("Unable to create zogiLib for zogilib: "+str(e))
  193:         
  194:         
  195:     # proxy text server methods to fulltextclient
  196:     def getTextPage(self, **args):
  197:         """get page"""
  198:         return self.template.fulltextclient.getTextPage(**args)
  199: 
  200:     def getQuery(self, **args):
  201:         """get query"""
  202:         return self.template.fulltextclient.getQuery(**args)
  203:     
  204:     def getQueryResultHits(self, **args):
  205:         """get query"""
  206:         return self.template.fulltextclient.getQueryResultHits(**args)
  207:     
  208:     def getQueryResultHitsText(self, **args):
  209:         """get query"""
  210:         return self.template.fulltextclient.getQueryResultHitsText(**args)
  211:     
  212:     def getQueryResultHitsFigures(self, **args):
  213:         """get query"""
  214:         return self.template.fulltextclient.getQueryResultHitsFigures(**args)
  215:     
  216:     def getSearch(self, **args):
  217:         """get search"""
  218:         return self.template.fulltextclient.getSearch(**args)
  219:     
  220:     def getGisPlaces(self, **args):
  221:         """get gis places"""
  222:         return self.template.fulltextclient.getGisPlaces(**args)
  223:  
  224:     def getAllGisPlaces(self, **args):
  225:         """get all gis places """
  226:         return self.template.fulltextclient.getAllGisPlaces(**args)
  227:     
  228:     def getOrigPages(self, **args):
  229:         """get original page number """
  230:         return self.template.fulltextclient.getOrigPages(**args)
  231:     
  232:     def getAllPlaces(self, **args):
  233:         """get original page number """
  234:         return self.template.fulltextclient.getAllPlaces(**args)
  235:     
  236:     def getTocEntries(self, **args):
  237:         """get original page number """
  238:         return self.template.fulltextclient.getTocEntries(**args)
  239:     
  240:     def getFigureEntries(self, **args):
  241:         """get original page number """
  242:         return self.template.fulltextclient.getFigureEntries(**args)    
  243:     
  244:     def getNumPages(self, docinfo):
  245:         """get numpages"""
  246:         return self.template.fulltextclient.getNumPages(docinfo)
  247:    
  248:     def getNumTextPages(self, docinfo):
  249:         """get numpages text"""
  250:         return self.template.fulltextclient.getNumTextPages(docinfo)
  251:    
  252:     def getTranslate(self, **args):
  253:         """get translate"""
  254:         return self.template.fulltextclient.getTranslate(**args)
  255: 
  256:     def getLemma(self, **args):
  257:         """get lemma"""
  258:         return self.template.fulltextclient.getLemma(**args)
  259: 
  260:     def getToc(self, **args):
  261:         """get toc"""
  262:         return self.template.fulltextclient.getToc(**args)
  263: 
  264:     def getTocPage(self, **args):
  265:         """get tocpage"""
  266:         return self.template.fulltextclient.getTocPage(**args)
  267: 
  268:     
  269:     security.declareProtected('View','thumbs_rss')
  270:     def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
  271:         '''
  272:         view it
  273:         @param mode: defines how to access the document behind url 
  274:         @param url: url which contains display information
  275:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  276:         
  277:         '''
  278:         logging.debug("HHHHHHHHHHHHHH:load the rss")
  279:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  280:         
  281:         if not hasattr(self, 'template'):
  282:             # create template folder if it doesn't exist
  283:             self.manage_addFolder('template')
  284:             
  285:         if not self.digilibBaseUrl:
  286:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  287:             
  288:         docinfo = self.getDocinfo(mode=mode,url=url)
  289:         #pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  290:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo)
  291:         ''' ZDES '''
  292:         pt = getattr(self.template, 'thumbs_main_rss')
  293:         
  294:         if viewMode=="auto": # automodus gewaehlt
  295:             if docinfo.has_key("textURL") or docinfo.get('textURLPath',None): #texturl gesetzt und textViewer konfiguriert
  296:                 viewMode="text"
  297:             else:
  298:                 viewMode="images"
  299:                
  300:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  301:   
  302:     security.declareProtected('View','index_html')
  303:     def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None):
  304:         '''
  305:         view it
  306:         @param mode: defines how to access the document behind url 
  307:         @param url: url which contains display information
  308:         @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
  309:         @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, none)
  310:         @param characterNormalization type of text display (reg, norm, none)
  311:         @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph, fulltextMorphLemma)
  312:         '''
  313:         
  314:         logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  315:         
  316:         if not hasattr(self, 'template'):
  317:             # this won't work
  318:             logging.error("template folder missing!")
  319:             return "ERROR: template folder missing!"
  320:             
  321:         if not getattr(self, 'digilibBaseUrl', None):
  322:             self.digilibBaseUrl = self.findDigilibUrl() or "http://digilib.mpiwg-berlin.mpg.de/digitallibrary"
  323:             
  324:         docinfo = self.getDocinfo(mode=mode,url=url)
  325:         
  326:         if tocMode != "thumbs":
  327:             # get table of contents
  328:             docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
  329:             
  330:         if viewMode=="auto": # automodus gewaehlt
  331:             if docinfo.has_key('textURL') or docinfo.get('textURLPath',None): #texturl gesetzt und textViewer konfiguriert
  332:                 viewMode="text_dict"
  333:             else:
  334:                 viewMode="images"
  335:                 
  336:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
  337:         
  338:         pt = getattr(self.template, 'viewer_main')               
  339:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
  340:   
  341:     def generateMarks(self,mk):
  342:         ret=""
  343:         if mk is None:
  344:             return ""
  345:         if not isinstance(mk, list):
  346:             mk=[mk]
  347:         for m in mk:
  348:             ret+="mk=%s"%m
  349:         return ret
  350:     
  351:     
  352:     def getBrowser(self):
  353:         """getBrowser the version of browser """
  354:         names=""
  355:         names = browserCheck(self)
  356:         return names
  357:         
  358:     def findDigilibUrl(self):
  359:         """try to get the digilib URL from zogilib"""
  360:         url = self.template.zogilib.getDLBaseUrl()
  361:         return url
  362: 
  363:     def getDocumentViewerURL(self):
  364:         """returns the URL of this instance"""
  365:         return self.absolute_url()
  366:     
  367:     def getStyle(self, idx, selected, style=""):
  368:         """returns a string with the given style and append 'sel' if path == selected."""
  369:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  370:         if idx == selected:
  371:             return style + 'sel'
  372:         else:
  373:             return style
  374:     
  375:     def getLink(self,param=None,val=None):
  376:         """link to documentviewer with parameter param set to val"""
  377:         params=self.REQUEST.form.copy()
  378:         if param is not None:
  379:             if val is None:
  380:                 if params.has_key(param):
  381:                     del params[param]
  382:             else:
  383:                 params[param] = str(val)
  384:                 
  385:         if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  386:                 params["mode"] = "imagepath"
  387:                 params["url"] = getParentDir(params["url"])
  388:                 
  389:         # quote values and assemble into query string
  390:         #ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  391:         ps = urllib.urlencode(params)
  392:         url=self.REQUEST['URL1']+"?"+ps
  393:         return url
  394: 
  395:     def getLinkAmp(self,param=None,val=None):
  396:         """link to documentviewer with parameter param set to val"""
  397:         params=self.REQUEST.form.copy()
  398:         if param is not None:
  399:             if val is None:
  400:                 if params.has_key(param):
  401:                     del params[param]
  402:             else:
  403:                 params[param] = str(val)
  404:                 
  405:         # quote values and assemble into query string
  406:         logging.debug("XYXXXXX: %s"%repr(params.items()))
  407:         ps = "&amp;".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  408:         url=self.REQUEST['URL1']+"?"+ps
  409:         return url
  410:     
  411:     def getInfo_xml(self,url,mode):
  412:         """returns info about the document as XML"""
  413: 
  414:         if not self.digilibBaseUrl:
  415:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  416:         
  417:         docinfo = self.getDocinfo(mode=mode,url=url)
  418:         pt = getattr(self.template, 'info_xml')
  419:         return pt(docinfo=docinfo)
  420: 
  421:     def getOptionToggle(self, newState=None, optionName='text_options_open', initialState=True):
  422:         """returns new option state"""
  423:         if not self.REQUEST.SESSION.has_key(optionName):
  424:             # not in session -- initial
  425:             opt = {'lastState': newState, 'state': initialState}
  426:         else:
  427:             opt = self.REQUEST.SESSION.get(optionName)
  428:             if opt['lastState'] != newState:
  429:                 # state in session has changed -- toggle
  430:                 opt['state'] = not opt['state']
  431:                 opt['lastState'] = newState
  432:         
  433:         self.REQUEST.SESSION[optionName] = opt
  434:         return opt['state']
  435:     
  436:     def isAccessible(self, docinfo):
  437:         """returns if access to the resource is granted"""
  438:         access = docinfo.get('accessType', None)
  439:         logging.debug("documentViewer (accessOK) access type %s"%access)
  440:         if access is not None and access == 'free':
  441:             logging.debug("documentViewer (accessOK) access is free")
  442:             return True
  443:         elif access is None or access in self.authgroups:
  444:             # only local access -- only logged in users
  445:             user = getSecurityManager().getUser()
  446:             logging.debug("documentViewer (accessOK) user=%s ip=%s"%(user,self.REQUEST.getClientAddr()))
  447:             if user is not None:
  448:                 #print "user: ", user
  449:                 return (user.getUserName() != "Anonymous User")
  450:             else:
  451:                 return False
  452:         
  453:         logging.error("documentViewer (accessOK) unknown access type %s"%access)
  454:         return False
  455:     
  456:                 
  457:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  458:         """gibt param von dlInfo aus"""
  459:         if docinfo is None:
  460:             docinfo = {}
  461:         
  462:         for x in range(cut):
  463:                
  464:                 path=getParentDir(path)
  465:        
  466:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  467:     
  468:         logging.debug("documentViewer (getparamfromdigilib) dirInfo from %s"%(infoUrl))
  469:         
  470:         txt = getHttpData(infoUrl)
  471:         if txt is None:
  472:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  473: 
  474:         dom = Parse(txt)
  475:         sizes=dom.xpath("//dir/size")
  476:         logging.debug("documentViewer (getparamfromdigilib) dirInfo:size"%sizes)
  477:         
  478:         if sizes:
  479:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  480:         else:
  481:             docinfo['numPages'] = 0
  482:             
  483:         # TODO: produce and keep list of image names and numbers
  484:                         
  485:         return docinfo
  486:     
  487:     def getIndexMetaPath(self,url):
  488:         """gib nur den Pfad zurueck"""
  489:         regexp = re.compile(r".*(experimental|permanent)/(.*)")
  490:         regpath = regexp.match(url)
  491:         if (regpath==None):
  492:             return ""
  493:         logging.debug("(getDomFromIndexMeta): URLXAXA: %s"%regpath.group(2))            
  494:         return ("/mpiwg/online/"+regpath.group(1)+"/"+regpath.group(2))
  495:      
  496:     
  497:     
  498:     def getIndexMetaUrl(self,url):
  499:         """returns utr  of index.meta document at url"""
  500:       
  501:         metaUrl = None
  502:         if url.startswith("http://"):
  503:             # real URL
  504:             metaUrl = url
  505:         else:
  506:             # online path
  507:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  508:             metaUrl=server+url.replace("/mpiwg/online","")
  509:             if not metaUrl.endswith("index.meta"):
  510:                 metaUrl += "/index.meta"
  511:         
  512:         return metaUrl
  513:     
  514:     def getDomFromIndexMeta(self, url):
  515:         """get dom from index meta"""
  516:         dom = None
  517:         metaUrl = self.getIndexMetaUrl(url)
  518:                 
  519:         logging.debug("(getDomFromIndexMeta): METAURL: %s"%metaUrl)
  520:         txt=getHttpData(metaUrl)
  521:         if txt is None:
  522:             raise IOError("Unable to read index meta from %s"%(url))
  523:         
  524:         dom = Parse(txt)
  525:         return dom
  526:     
  527:     def getPresentationInfoXML(self, url):
  528:         """returns dom of info.xml document at url"""
  529:         dom = None
  530:         metaUrl = None
  531:         if url.startswith("http://"):
  532:             # real URL
  533:             metaUrl = url
  534:         else:
  535:             # online path
  536:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  537:             metaUrl=server+url.replace("/mpiwg/online","")
  538:         
  539:         txt=getHttpData(metaUrl)
  540:         if txt is None:
  541:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  542:             
  543:         dom = Parse(txt)
  544:         return dom
  545:                         
  546:         
  547:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  548:         """gets authorization info from the index.meta file at path or given by dom"""
  549:         logging.debug("documentViewer (getauthinfofromindexmeta) path: %s"%(path))
  550:         
  551:         access = None
  552:         
  553:         if docinfo is None:
  554:             docinfo = {}
  555:             
  556:         if dom is None:
  557:             for x in range(cut):
  558:                 path=getParentDir(path)
  559:             dom = self.getDomFromIndexMeta(path)
  560:        
  561:         acctype = dom.xpath("//access-conditions/access/@type")
  562:         if acctype and (len(acctype)>0):
  563:             access=acctype[0].value
  564:             if access in ['group', 'institution']:
  565:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  566:             
  567:         docinfo['accessType'] = access
  568:         return docinfo
  569:     
  570:         
  571:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  572:         """gets bibliographical info from the index.meta file at path or given by dom"""
  573:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  574:         
  575:         if docinfo is None:
  576:             docinfo = {}
  577:         
  578:         if dom is None:
  579:             for x in range(cut):
  580:                 path=getParentDir(path)
  581:             dom = self.getDomFromIndexMeta(path)
  582:         
  583:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  584:         
  585:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  586:         # put in all raw bib fields as dict "bib"
  587:         bib = dom.xpath("//bib/*")
  588:         if bib and len(bib)>0:
  589:             bibinfo = {}
  590:             for e in bib:
  591:                 bibinfo[e.localName] = getTextFromNode(e)
  592:             docinfo['bib'] = bibinfo
  593:         
  594:         # extract some fields (author, title, year) according to their mapping
  595:         metaData=self.metadata.main.meta.bib
  596:         bibtype=dom.xpath("//bib/@type")
  597:         if bibtype and (len(bibtype)>0):
  598:             bibtype=bibtype[0].value
  599:         else:
  600:             bibtype="generic"
  601:             
  602:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  603:         docinfo['bib_type'] = bibtype
  604:         bibmap=metaData.generateMappingForType(bibtype)
  605:         logging.debug("documentViewer (getbibinfofromindexmeta) bibmap:"+repr(bibmap))
  606:         logging.debug("documentViewer (getbibinfofromindexmeta) bibtype:"+repr(bibtype))
  607:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  608:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  609:             try:
  610:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  611:             except: pass
  612:             try:
  613:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  614:             except: pass
  615:             try:
  616:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  617:             except: pass
  618:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  619:             try:
  620:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  621:             except:
  622:                 docinfo['lang']=''
  623: 
  624:         return docinfo
  625:     
  626:      
  627:     def getNameFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  628:         """gets name info from the index.meta file at path or given by dom"""
  629:         if docinfo is None:
  630:             docinfo = {}
  631:         
  632:         if dom is None:
  633:             for x in range(cut):
  634:                 path=getParentDir(path)
  635:             dom = self.getDomFromIndexMeta(path)
  636: 
  637:         docinfo['name']=getTextFromNode(dom.xpath("/resource/name")[0])
  638:         logging.debug("documentViewer docinfo[name] %s"%docinfo['name'])
  639:         return docinfo
  640:     
  641:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  642:         """parse texttool tag in index meta"""
  643:         logging.debug("documentViewer (getdocinfofromtexttool) url: %s" % (url))
  644:         if docinfo is None:
  645:            docinfo = {}
  646:         if docinfo.get('lang', None) is None:
  647:             docinfo['lang'] = '' # default keine Sprache gesetzt
  648:         if dom is None:
  649:             dom = self.getDomFromIndexMeta(url)
  650:         
  651:         archivePath = None
  652:         archiveName = None
  653:     
  654:         archiveNames = dom.xpath("//resource/name")
  655:         if archiveNames and (len(archiveNames) > 0):
  656:             archiveName = getTextFromNode(archiveNames[0])
  657:         else:
  658:             logging.warning("documentViewer (getdocinfofromtexttool) resource/name missing in: %s" % (url))
  659:         
  660:         archivePaths = dom.xpath("//resource/archive-path")
  661:         if archivePaths and (len(archivePaths) > 0):
  662:             archivePath = getTextFromNode(archivePaths[0])
  663:             # clean up archive path
  664:             if archivePath[0] != '/':
  665:                 archivePath = '/' + archivePath
  666:             if archiveName and (not archivePath.endswith(archiveName)):
  667:                 archivePath += "/" + archiveName
  668:         else:
  669:             # try to get archive-path from url
  670:             logging.warning("documentViewer (getdocinfofromtexttool) resource/archive-path missing in: %s" % (url))
  671:             if (not url.startswith('http')):
  672:                 archivePath = url.replace('index.meta', '')
  673:                 
  674:         if archivePath is None:
  675:             # we balk without archive-path
  676:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  677:         
  678:         imageDirs = dom.xpath("//texttool/image")
  679:         if imageDirs and (len(imageDirs) > 0):
  680:             imageDir = getTextFromNode(imageDirs[0])
  681:             
  682:         else:
  683:             # we balk with no image tag / not necessary anymore because textmode is now standard
  684:             #raise IOError("No text-tool info in %s"%(url))
  685:             imageDir = ""
  686:             #xquery="//pb"  
  687:             docinfo['imagePath'] = "" # keine Bilder
  688:             docinfo['imageURL'] = ""
  689:             
  690:         if imageDir and archivePath:
  691:             #print "image: ", imageDir, " archivepath: ", archivePath
  692:             imageDir = os.path.join(archivePath, imageDir)
  693:             imageDir = imageDir.replace("/mpiwg/online", '')
  694:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  695:             docinfo['imagePath'] = imageDir
  696:             
  697:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  698:             
  699:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  700:         if viewerUrls and (len(viewerUrls) > 0):
  701:             viewerUrl = getTextFromNode(viewerUrls[0])
  702:             docinfo['viewerURL'] = viewerUrl
  703:         
  704:         # old style text URL
  705:         textUrls = dom.xpath("//texttool/text")
  706:         if textUrls and (len(textUrls) > 0):
  707:             textUrl = getTextFromNode(textUrls[0])
  708:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  709:                 textUrl = os.path.join(archivePath, textUrl) 
  710:             # fix URLs starting with /mpiwg/online
  711:             if textUrl.startswith("/mpiwg/online"):
  712:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  713:             
  714:             docinfo['textURL'] = textUrl
  715:     
  716:         # new style text-url-path
  717:         textUrls = dom.xpath("//texttool/text-url-path")
  718:         if textUrls and (len(textUrls) > 0):
  719:             textUrl = getTextFromNode(textUrls[0])
  720:             docinfo['textURLPath'] = textUrl
  721:             if not docinfo['imagePath']:
  722:                 # text-only, no page images
  723:                 docinfo = self.getNumTextPages(docinfo)
  724:          
  725:         presentationUrls = dom.xpath("//texttool/presentation")
  726:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  727:         docinfo = self.getNameFromIndexMeta(url, docinfo=docinfo, dom=dom)
  728:         
  729:         
  730:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  731:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  732:              # durch den relativen Pfad auf die presentation infos
  733:             presentationPath = getTextFromNode(presentationUrls[0])
  734:             if url.endswith("index.meta"): 
  735:                 presentationUrl = url.replace('index.meta', presentationPath)
  736:             else:
  737:                 presentationUrl = url + "/" + presentationPath
  738:                 
  739:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  740:     
  741:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  742:         
  743:         return docinfo
  744:    
  745:    
  746:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  747:         """gets the bibliographical information from the preseantion entry in texttools
  748:         """
  749:         dom=self.getPresentationInfoXML(url)
  750:         try:
  751:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  752:         except:
  753:             pass
  754:         try:
  755:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  756:         except:
  757:             pass
  758:         try:
  759:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  760:         except:
  761:             pass
  762:         return docinfo
  763:     
  764:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  765:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  766:         logging.debug("documentViewer (getdocinfofromimagepath) path: %s"%(path))
  767:         if docinfo is None:
  768:             docinfo = {}
  769:         path=path.replace("/mpiwg/online","")
  770:         docinfo['imagePath'] = path
  771:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  772:         
  773:         pathorig=path
  774:         for x in range(cut):       
  775:                 path=getParentDir(path)
  776:         logging.debug("documentViewer (getdocinfofromimagepath) PATH:"+path)
  777:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  778:         docinfo['imageURL'] = imageUrl
  779:         
  780:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  781:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  782:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  783:         return docinfo
  784:     
  785:     
  786:     def getDocinfo(self, mode, url):
  787:         """returns docinfo depending on mode"""
  788:         logging.debug("documentViewer (getdocinfo) mode: %s, url: %s"%(mode,url))
  789:         # look for cached docinfo in session
  790:         if self.REQUEST.SESSION.has_key('docinfo'):
  791:             docinfo = self.REQUEST.SESSION['docinfo']
  792:             # check if its still current
  793:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  794:                 logging.debug("documentViewer (getdocinfo) docinfo in session: %s"%docinfo)
  795:                 return docinfo
  796:         # new docinfo
  797:         docinfo = {'mode': mode, 'url': url}
  798:         if mode=="texttool": #index.meta with texttool information
  799:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  800:         elif mode=="imagepath":
  801:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  802:         elif mode=="filepath":
  803:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  804:         else:
  805:             logging.error("documentViewer (getdocinfo) unknown mode: %s!"%mode)
  806:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  807:                 
  808:         # FIXME: fake texturlpath 
  809:         if not docinfo.has_key('textURLPath'):
  810:             docinfo['textURLPath'] = None
  811:         
  812:         logging.debug("documentViewer (getdocinfo) docinfo: %s"%docinfo)
  813:         #logging.debug("documentViewer (getdocinfo) docinfo: %s"%)
  814:         self.REQUEST.SESSION['docinfo'] = docinfo
  815:         return docinfo
  816:                
  817:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None):
  818:         """returns pageinfo with the given parameters"""
  819:         pageinfo = {}
  820:         current = getInt(current)
  821:     
  822:         pageinfo['current'] = current
  823:         rows = int(rows or self.thumbrows)
  824:         pageinfo['rows'] = rows
  825:         cols = int(cols or self.thumbcols)
  826:         pageinfo['cols'] = cols
  827:         grpsize = cols * rows
  828:         pageinfo['groupsize'] = grpsize
  829:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  830:         # int(current / grpsize) * grpsize +1))
  831:         pageinfo['start'] = start
  832:         pageinfo['end'] = start + grpsize
  833:         if (docinfo is not None) and ('numPages' in docinfo):
  834:             np = int(docinfo['numPages'])
  835:             pageinfo['end'] = min(pageinfo['end'], np)
  836:             pageinfo['numgroups'] = int(np / grpsize)
  837:             if np % grpsize > 0:
  838:                 pageinfo['numgroups'] += 1        
  839:         pageinfo['viewMode'] = viewMode
  840:         pageinfo['tocMode'] = tocMode
  841:         pageinfo['characterNormalization'] = self.REQUEST.get('characterNormalization','reg')
  842:         pageinfo['optionToggle'] = self.REQUEST.get('optionToggle','')
  843:         pageinfo['query'] = self.REQUEST.get('query','') 
  844:         pageinfo['queryType'] = self.REQUEST.get('queryType','')
  845:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  846:         pageinfo['textPN'] = self.REQUEST.get('textPN','1')
  847:         pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
  848:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  849:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
  850:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
  851:         toc = int (pageinfo['tocPN'])
  852:         pageinfo['textPages'] =int (toc)
  853:         
  854:         
  855:         
  856:         if 'tocSize_%s'%tocMode in docinfo:
  857:             tocSize = int(docinfo['tocSize_%s'%tocMode])
  858:             tocPageSize = int(pageinfo['tocPageSize'])
  859:             # cached toc           
  860:             if tocSize%tocPageSize>0:
  861:                 tocPages=tocSize/tocPageSize+1
  862:             else:
  863:                 tocPages=tocSize/tocPageSize
  864:             pageinfo['tocPN'] = min (tocPages,toc)                    
  865:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  866:         pageinfo['sn'] =self.REQUEST.get('sn','')
  867:         return pageinfo
  868:     
  869: def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  870:         """init document viewer"""
  871:         self.title=title
  872:         self.digilibBaseUrl = digilibBaseUrl
  873:         self.thumbrows = thumbrows
  874:         self.thumbcols = thumbcols
  875:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  876:         if RESPONSE is not None:
  877:             RESPONSE.redirect('manage_main')
  878:         
  879: def manage_AddDocumentViewerForm(self):
  880:     """add the viewer form"""
  881:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  882:     return pt()
  883:   
  884: def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
  885:     """add the viewer"""
  886:     newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
  887:     self._setObject(id,newObj)
  888:     
  889:     if RESPONSE is not None:
  890:         RESPONSE.redirect('manage_main')
  891: 
  892: ## DocumentViewerTemplate class
  893: class DocumentViewerTemplate(ZopePageTemplate):
  894:     """Template for document viewer"""
  895:     meta_type="DocumentViewer Template"
  896: 
  897: 
  898: def manage_addDocumentViewerTemplateForm(self):
  899:     """Form for adding"""
  900:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  901:     return pt()
  902: 
  903: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  904:                            REQUEST=None, submit=None):
  905:     "Add a Page Template with optional file content."
  906: 
  907:     self._setObject(id, DocumentViewerTemplate(id))
  908:     ob = getattr(self, id)
  909:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  910:     logging.info("txt %s:"%txt)
  911:     ob.pt_edit(txt,"text/html")
  912:     if title:
  913:         ob.pt_setTitle(title)
  914:     try:
  915:         u = self.DestinationURL()
  916:     except AttributeError:
  917:         u = REQUEST['URL1']
  918:         
  919:     u = "%s/%s" % (u, urllib.quote(id))
  920:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  921:     return ''
  922: 
  923: 
  924:     

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