File:  [Repository] / documentViewer / documentViewer.py
Revision 1.147: download - view: text, annotated - select for diffs - revision graph
Thu Oct 28 15:44:20 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: 
   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 getBrowserType(self):
   55:         """get browser type object"""
   56:         if self.REQUEST.SESSION.has_key('browserType'):
   57:             return self.REQUEST.SESSION['browserType']
   58:         else:
   59:             bt = browserCheck(self)
   60:             self.REQUEST.SESSION.set('browserType', bt)    
   61:             logging.debug("documentViewer (BROWSER TYPE) bt %s"%bt)                    
   62:             return bt
   63: 
   64:        
   65: def getParentDir(path):
   66:     """returns pathname shortened by one"""
   67:     return '/'.join(path.split('/')[0:-1])
   68:         
   69: 
   70: def getHttpData(url, data=None, num_tries=3, timeout=10):
   71:     """returns result from url+data HTTP request"""
   72:     # we do GET (by appending data to url)
   73:     if isinstance(data, str) or isinstance(data, unicode):
   74:         # if data is string then append
   75:         url = "%s?%s"%(url,data)
   76:     elif isinstance(data, dict) or isinstance(data, list) or isinstance(data, tuple):
   77:         # urlencode
   78:         url = "%s?%s"%(url,urllib.urlencode(data))
   79:     
   80:     response = None
   81:     errmsg = None
   82:     for cnt in range(num_tries):
   83:         try:
   84:             logging.debug("getHttpData(#%s %ss) url=%s"%(cnt+1,timeout,url))
   85:             if sys.version_info < (2, 6):
   86:                 # set timeout on socket -- ugly :-(
   87:                 import socket
   88:                 socket.setdefaulttimeout(float(timeout))
   89:                 response = urllib2.urlopen(url)
   90:             else:
   91:                 response = urllib2.urlopen(url,timeout=float(timeout))
   92:             # check result?
   93:             break
   94:         except urllib2.HTTPError, e:
   95:             logging.error("getHttpData: HTTP error(%s): %s"%(e.code,e))
   96:             errmsg = str(e)
   97:             # stop trying
   98:             break
   99:         except urllib2.URLError, e:
  100:             logging.error("getHttpData: URLLIB error(%s): %s"%(e.reason,e))
  101:             errmsg = str(e)
  102:             # stop trying
  103:             #break
  104: 
  105:     if response is not None:
  106:         data = response.read()
  107:         response.close()
  108:         return data
  109:     
  110:     raise IOError("ERROR fetching HTTP data from %s: %s"%(url,errmsg))
  111:     #return None
  112: 
  113: 
  114: 
  115: ##
  116: ## documentViewer class
  117: ##
  118: class documentViewer(Folder):
  119:     """document viewer"""
  120:     meta_type="Document viewer"
  121:     
  122:     security=ClassSecurityInfo()
  123:     manage_options=Folder.manage_options+(
  124:         {'label':'main config','action':'changeDocumentViewerForm'},
  125:         )
  126: 
  127:     # templates and forms
  128:     viewer_main = PageTemplateFile('zpt/viewer_main', globals())
  129:     toc_thumbs = PageTemplateFile('zpt/toc_thumbs', globals())
  130:     toc_text = PageTemplateFile('zpt/toc_text', globals())
  131:     toc_figures = PageTemplateFile('zpt/toc_figures', globals())
  132:     page_main_images = PageTemplateFile('zpt/page_main_images', globals())
  133:     page_main_text = PageTemplateFile('zpt/page_main_text', globals())
  134:     page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
  135:     page_main_gis =PageTemplateFile ('zpt/page_main_gis', globals())
  136:     page_main_xml = PageTemplateFile('zpt/page_main_xml', globals())
  137:     head_main = PageTemplateFile('zpt/head_main', globals())
  138:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
  139:     info_xml = PageTemplateFile('zpt/info_xml', globals())
  140:     
  141:     
  142:     thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
  143:     security.declareProtected('View management screens','changeDocumentViewerForm')    
  144:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
  145: 
  146:     
  147:     def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
  148:         """init document viewer"""
  149:         self.id=id
  150:         self.title=title
  151:         self.thumbcols = thumbcols
  152:         self.thumbrows = thumbrows
  153:         # authgroups is list of authorized groups (delimited by ,)
  154:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  155:         # create template folder so we can always use template.something
  156:         
  157:         templateFolder = Folder('template')
  158:         #self['template'] = templateFolder # Zope-2.12 style
  159:         self._setObject('template',templateFolder) # old style
  160:         try:
  161:             import MpdlXmlTextServer
  162:             textServer = MpdlXmlTextServer.MpdlXmlTextServer(id='fulltextclient',serverName=textServerName)
  163:             #templateFolder['fulltextclient'] = xmlRpcClient
  164:             templateFolder._setObject('fulltextclient',textServer)
  165:         except Exception, e:
  166:             logging.error("Unable to create MpdlXmlTextServer for fulltextclient: "+str(e))
  167:         try:
  168:             from Products.zogiLib.zogiLib import zogiLib
  169:             zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
  170:             #templateFolder['zogilib'] = zogilib
  171:             templateFolder._setObject('zogilib',zogilib)
  172:         except Exception, e:
  173:             logging.error("Unable to create zogiLib for zogilib: "+str(e))
  174:         
  175:         
  176:     # proxy text server methods to fulltextclient
  177:     def getTextPage(self, **args):
  178:         """get page"""
  179:         return self.template.fulltextclient.getTextPage(**args)
  180: 
  181:     def getQuery(self, **args):
  182:         """get query"""
  183:         return self.template.fulltextclient.getQuery(**args)
  184:     
  185:     def getPDF(self, **args):
  186:         """get query"""
  187:         return self.template.fulltextclient.getPDF(**args)
  188: 
  189:     def getSearch(self, **args):
  190:         """get search"""
  191:         return self.template.fulltextclient.getSearch(**args)
  192:     
  193:     def getGisPlaces(self, **args):
  194:         """get gis places"""
  195:         return self.template.fulltextclient.getGisPlaces(**args)
  196:  
  197:     def getAllGisPlaces(self, **args):
  198:         """get all gis places """
  199:         return self.template.fulltextclient.getAllGisPlaces(**args)
  200:     
  201:     def getOrigPages(self, **args):
  202:         """get original page number """
  203:         return self.template.fulltextclient.getOrigPages(**args)
  204:     
  205:     def getNumPages(self, docinfo):
  206:         """get numpages"""
  207:         return self.template.fulltextclient.getNumPages(docinfo)
  208:    
  209:     def getNumTextPages(self, docinfo):
  210:         """get numpages text"""
  211:         return self.template.fulltextclient.getNumTextPages(docinfo)
  212:    
  213:     def getTranslate(self, **args):
  214:         """get translate"""
  215:         return self.template.fulltextclient.getTranslate(**args)
  216: 
  217:     def getLemma(self, **args):
  218:         """get lemma"""
  219:         return self.template.fulltextclient.getLemma(**args)
  220: 
  221:     def getToc(self, **args):
  222:         """get toc"""
  223:         return self.template.fulltextclient.getToc(**args)
  224: 
  225:     def getTocPage(self, **args):
  226:         """get tocpage"""
  227:         return self.template.fulltextclient.getTocPage(**args)
  228: 
  229:     
  230:     security.declareProtected('View','thumbs_rss')
  231:     def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
  232:         '''
  233:         view it
  234:         @param mode: defines how to access the document behind url 
  235:         @param url: url which contains display information
  236:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  237:         
  238:         '''
  239:         logging.debug("HHHHHHHHHHHHHH:load the rss")
  240:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  241:         
  242:         if not hasattr(self, 'template'):
  243:             # create template folder if it doesn't exist
  244:             self.manage_addFolder('template')
  245:             
  246:         if not self.digilibBaseUrl:
  247:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  248:             
  249:         docinfo = self.getDocinfo(mode=mode,url=url)
  250:         #pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  251:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo)
  252:         ''' ZDES '''
  253:         pt = getattr(self.template, 'thumbs_main_rss')
  254:         
  255:         if viewMode=="auto": # automodus gewaehlt
  256:             if docinfo.has_key("textURL") or docinfo.has_key('textURLPath'): #texturl gesetzt und textViewer konfiguriert
  257:                 viewMode="text"
  258:             else:
  259:                 viewMode="images"
  260:                
  261:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  262:   
  263:     security.declareProtected('View','index_html')
  264:     def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None, query=None, querySearch=None, characterNormalization=""):
  265:         '''
  266:         view it
  267:         @param mode: defines how to access the document behind url 
  268:         @param url: url which contains display information
  269:         @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
  270:         @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, none)
  271:         @param characterNormalization type of text display (reg, norm, none)
  272:         @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph, fulltextMorphLemma)
  273:         '''
  274:         
  275:         logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  276:         
  277:         if not hasattr(self, 'template'):
  278:             # this won't work
  279:             logging.error("template folder missing!")
  280:             return "ERROR: template folder missing!"
  281:             
  282:         if not getattr(self, 'digilibBaseUrl', None):
  283:             self.digilibBaseUrl = self.findDigilibUrl() or "http://digilib.mpiwg-berlin.mpg.de/digitallibrary"
  284:             
  285:         docinfo = self.getDocinfo(mode=mode,url=url)
  286:         
  287:         if tocMode != "thumbs":
  288:             # get table of contents
  289:             docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
  290:             
  291:         if viewMode=="auto": # automodus gewaehlt
  292:             if docinfo.has_key('textURL') or docinfo.has_key('textURLPath'): #texturl gesetzt und textViewer konfiguriert
  293:                 viewMode="text_dict"
  294:             else:
  295:                 viewMode="images"
  296:                 
  297:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
  298:         
  299:         pt = getattr(self.template, 'viewer_main')               
  300:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
  301:   
  302:     def generateMarks(self,mk):
  303:         ret=""
  304:         if mk is None:
  305:             return ""
  306:         if not isinstance(mk, list):
  307:             mk=[mk]
  308:         for m in mk:
  309:             ret+="mk=%s"%m
  310:         return ret
  311: 
  312: 
  313:     def findDigilibUrl(self):
  314:         """try to get the digilib URL from zogilib"""
  315:         url = self.template.zogilib.getDLBaseUrl()
  316:         return url
  317: 
  318:     def getDocumentViewerURL(self):
  319:         """returns the URL of this instance"""
  320:         return self.absolute_url()
  321:     
  322:     def getStyle(self, idx, selected, style=""):
  323:         """returns a string with the given style and append 'sel' if path == selected."""
  324:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  325:         if idx == selected:
  326:             return style + 'sel'
  327:         else:
  328:             return style
  329:     
  330:     def getLink(self,param=None,val=None):
  331:         """link to documentviewer with parameter param set to val"""
  332:         params=self.REQUEST.form.copy()
  333:         if param is not None:
  334:             if val is None:
  335:                 if params.has_key(param):
  336:                     del params[param]
  337:             else:
  338:                 params[param] = str(val)
  339:                 
  340:         if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  341:                 params["mode"] = "imagepath"
  342:                 params["url"] = getParentDir(params["url"])
  343:                 
  344:         # quote values and assemble into query string
  345:         #ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  346:         ps = urllib.urlencode(params)
  347:         url=self.REQUEST['URL1']+"?"+ps
  348:         return url
  349: 
  350:     def getLinkAmp(self,param=None,val=None):
  351:         """link to documentviewer with parameter param set to val"""
  352:         params=self.REQUEST.form.copy()
  353:         if param is not None:
  354:             if val is None:
  355:                 if params.has_key(param):
  356:                     del params[param]
  357:             else:
  358:                 params[param] = str(val)
  359:                 
  360:         # quote values and assemble into query string
  361:         logging.debug("XYXXXXX: %s"%repr(params.items()))
  362:         ps = "&amp;".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  363:         url=self.REQUEST['URL1']+"?"+ps
  364:         return url
  365:     
  366:     def getInfo_xml(self,url,mode):
  367:         """returns info about the document as XML"""
  368: 
  369:         if not self.digilibBaseUrl:
  370:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  371:         
  372:         docinfo = self.getDocinfo(mode=mode,url=url)
  373:         pt = getattr(self.template, 'info_xml')
  374:         return pt(docinfo=docinfo)
  375: 
  376:     
  377:     def isAccessible(self, docinfo):
  378:         """returns if access to the resource is granted"""
  379:         access = docinfo.get('accessType', None)
  380:         logging.debug("documentViewer (accessOK) access type %s"%access)
  381:         if access is not None and access == 'free':
  382:             logging.debug("documentViewer (accessOK) access is free")
  383:             return True
  384:         elif access is None or access in self.authgroups:
  385:             # only local access -- only logged in users
  386:             user = getSecurityManager().getUser()
  387:             logging.debug("documentViewer (accessOK) user=%s ip=%s"%(user,self.REQUEST.getClientAddr()))
  388:             if user is not None:
  389:                 #print "user: ", user
  390:                 return (user.getUserName() != "Anonymous User")
  391:             else:
  392:                 return False
  393:         
  394:         logging.error("documentViewer (accessOK) unknown access type %s"%access)
  395:         return False
  396:     
  397:                 
  398:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  399:         """gibt param von dlInfo aus"""
  400:         if docinfo is None:
  401:             docinfo = {}
  402:         
  403:         for x in range(cut):
  404:                
  405:                 path=getParentDir(path)
  406:        
  407:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  408:     
  409:         logging.debug("documentViewer (getparamfromdigilib) dirInfo from %s"%(infoUrl))
  410:         
  411:         txt = getHttpData(infoUrl)
  412:         if txt is None:
  413:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  414: 
  415:         dom = Parse(txt)
  416:         sizes=dom.xpath("//dir/size")
  417:         logging.debug("documentViewer (getparamfromdigilib) dirInfo:size"%sizes)
  418:         
  419:         if sizes:
  420:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  421:         else:
  422:             docinfo['numPages'] = 0
  423:             
  424:         # TODO: produce and keep list of image names and numbers
  425:                         
  426:         return docinfo
  427:     
  428:     def getIndexMetaPath(self,url):
  429:         """gib nur den Pfad zurueck"""
  430:         regexp = re.compile(r".*(experimental|permanent)/(.*)")
  431:         regpath = regexp.match(url)
  432:         if (regpath==None):
  433:             return ""
  434:         logging.debug("(getDomFromIndexMeta): URLXAXA: %s"%regpath.group(2))            
  435:         return ("/mpiwg/online/"+regpath.group(1)+"/"+regpath.group(2))
  436:      
  437:     
  438:     
  439:     def getIndexMetaUrl(self,url):
  440:         """returns utr  of index.meta document at url"""
  441:       
  442:         metaUrl = None
  443:         if url.startswith("http://"):
  444:             # real URL
  445:             metaUrl = url
  446:         else:
  447:             # online path
  448:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  449:             metaUrl=server+url.replace("/mpiwg/online","")
  450:             if not metaUrl.endswith("index.meta"):
  451:                 metaUrl += "/index.meta"
  452:         
  453:         return metaUrl
  454:     
  455:     def getDomFromIndexMeta(self, url):
  456:         """get dom from index meta"""
  457:         dom = None
  458:         metaUrl = self.getIndexMetaUrl(url)
  459:                 
  460:         logging.debug("(getDomFromIndexMeta): METAURL: %s"%metaUrl)
  461:         txt=getHttpData(metaUrl)
  462:         if txt is None:
  463:             raise IOError("Unable to read index meta from %s"%(url))
  464:         
  465:         dom = Parse(txt)
  466:         return dom
  467:     
  468:     def getPresentationInfoXML(self, url):
  469:         """returns dom of info.xml document at url"""
  470:         dom = None
  471:         metaUrl = None
  472:         if url.startswith("http://"):
  473:             # real URL
  474:             metaUrl = url
  475:         else:
  476:             # online path
  477:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  478:             metaUrl=server+url.replace("/mpiwg/online","")
  479:         
  480:         txt=getHttpData(metaUrl)
  481:         if txt is None:
  482:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  483:             
  484:         dom = Parse(txt)
  485:         return dom
  486:                         
  487:         
  488:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  489:         """gets authorization info from the index.meta file at path or given by dom"""
  490:         logging.debug("documentViewer (getauthinfofromindexmeta) path: %s"%(path))
  491:         
  492:         access = None
  493:         
  494:         if docinfo is None:
  495:             docinfo = {}
  496:             
  497:         if dom is None:
  498:             for x in range(cut):
  499:                 path=getParentDir(path)
  500:             dom = self.getDomFromIndexMeta(path)
  501:        
  502:         acctype = dom.xpath("//access-conditions/access/@type")
  503:         if acctype and (len(acctype)>0):
  504:             access=acctype[0].value
  505:             if access in ['group', 'institution']:
  506:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  507:             
  508:         docinfo['accessType'] = access
  509:         return docinfo
  510:     
  511:         
  512:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  513:         """gets bibliographical info from the index.meta file at path or given by dom"""
  514:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  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:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  525:         
  526:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  527:         # put in all raw bib fields as dict "bib"
  528:         bib = dom.xpath("//bib/*")
  529:         if bib and len(bib)>0:
  530:             bibinfo = {}
  531:             for e in bib:
  532:                 bibinfo[e.localName] = getTextFromNode(e)
  533:             docinfo['bib'] = bibinfo
  534:         
  535:         # extract some fields (author, title, year) according to their mapping
  536:         metaData=self.metadata.main.meta.bib
  537:         bibtype=dom.xpath("//bib/@type")
  538:         if bibtype and (len(bibtype)>0):
  539:             bibtype=bibtype[0].value
  540:         else:
  541:             bibtype="generic"
  542:             
  543:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  544:         docinfo['bib_type'] = bibtype
  545:         bibmap=metaData.generateMappingForType(bibtype)
  546:         logging.debug("documentViewer (getbibinfofromindexmeta) bibmap:"+repr(bibmap))
  547:         logging.debug("documentViewer (getbibinfofromindexmeta) bibtype:"+repr(bibtype))
  548:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  549:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  550:             try:
  551:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  552:             except: pass
  553:             try:
  554:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  555:             except: pass
  556:             try:
  557:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  558:             except: pass
  559:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  560:             try:
  561:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  562:             except:
  563:                 docinfo['lang']=''
  564: 
  565:         return docinfo
  566:     
  567:      
  568:     def getNameFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  569:         """gets name info from the index.meta file at path or given by dom"""
  570:         if docinfo is None:
  571:             docinfo = {}
  572:         
  573:         if dom is None:
  574:             for x in range(cut):
  575:                 path=getParentDir(path)
  576:             dom = self.getDomFromIndexMeta(path)
  577: 
  578:         docinfo['name']=getTextFromNode(dom.xpath("/resource/name")[0])
  579:         logging.debug("documentViewer docinfo[name] %s"%docinfo['name'])
  580:         return docinfo
  581:     
  582:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  583:         """parse texttool tag in index meta"""
  584:         logging.debug("documentViewer (getdocinfofromtexttool) url: %s" % (url))
  585:         if docinfo is None:
  586:            docinfo = {}
  587:         if docinfo.get('lang', None) is None:
  588:             docinfo['lang'] = '' # default keine Sprache gesetzt
  589:         if dom is None:
  590:             dom = self.getDomFromIndexMeta(url)
  591:         
  592:         archivePath = None
  593:         archiveName = None
  594:     
  595:         archiveNames = dom.xpath("//resource/name")
  596:         if archiveNames and (len(archiveNames) > 0):
  597:             archiveName = getTextFromNode(archiveNames[0])
  598:         else:
  599:             logging.warning("documentViewer (getdocinfofromtexttool) resource/name missing in: %s" % (url))
  600:         
  601:         archivePaths = dom.xpath("//resource/archive-path")
  602:         if archivePaths and (len(archivePaths) > 0):
  603:             archivePath = getTextFromNode(archivePaths[0])
  604:             # clean up archive path
  605:             if archivePath[0] != '/':
  606:                 archivePath = '/' + archivePath
  607:             if archiveName and (not archivePath.endswith(archiveName)):
  608:                 archivePath += "/" + archiveName
  609:         else:
  610:             # try to get archive-path from url
  611:             logging.warning("documentViewer (getdocinfofromtexttool) resource/archive-path missing in: %s" % (url))
  612:             if (not url.startswith('http')):
  613:                 archivePath = url.replace('index.meta', '')
  614:                 
  615:         if archivePath is None:
  616:             # we balk without archive-path
  617:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  618:         
  619:         imageDirs = dom.xpath("//texttool/image")
  620:         if imageDirs and (len(imageDirs) > 0):
  621:             imageDir = getTextFromNode(imageDirs[0])
  622:             
  623:         else:
  624:             # we balk with no image tag / not necessary anymore because textmode is now standard
  625:             #raise IOError("No text-tool info in %s"%(url))
  626:             imageDir = ""
  627:             #xquery="//pb"  
  628:             docinfo['imagePath'] = "" # keine Bilder
  629:             docinfo['imageURL'] = ""
  630:             
  631:         if imageDir and archivePath:
  632:             #print "image: ", imageDir, " archivepath: ", archivePath
  633:             imageDir = os.path.join(archivePath, imageDir)
  634:             imageDir = imageDir.replace("/mpiwg/online", '')
  635:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  636:             docinfo['imagePath'] = imageDir
  637:             
  638:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  639:             
  640:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  641:         if viewerUrls and (len(viewerUrls) > 0):
  642:             viewerUrl = getTextFromNode(viewerUrls[0])
  643:             docinfo['viewerURL'] = viewerUrl
  644:         
  645:         # old style text URL
  646:         textUrls = dom.xpath("//texttool/text")
  647:         if textUrls and (len(textUrls) > 0):
  648:             textUrl = getTextFromNode(textUrls[0])
  649:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  650:                 textUrl = os.path.join(archivePath, textUrl) 
  651:             # fix URLs starting with /mpiwg/online
  652:             if textUrl.startswith("/mpiwg/online"):
  653:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  654:             
  655:             docinfo['textURL'] = textUrl
  656:     
  657:         # new style text-url-path
  658:         textUrls = dom.xpath("//texttool/text-url-path")
  659:         if textUrls and (len(textUrls) > 0):
  660:             textUrl = getTextFromNode(textUrls[0])
  661:             docinfo['textURLPath'] = textUrl
  662:             if not docinfo['imagePath']:
  663:                 # text-only, no page images
  664:                 docinfo = self.getNumTextPages(docinfo)
  665:          
  666:         presentationUrls = dom.xpath("//texttool/presentation")
  667:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  668:         docinfo = self.getNameFromIndexMeta(url, docinfo=docinfo, dom=dom)
  669:         
  670:         
  671:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  672:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  673:              # durch den relativen Pfad auf die presentation infos
  674:             presentationPath = getTextFromNode(presentationUrls[0])
  675:             if url.endswith("index.meta"): 
  676:                 presentationUrl = url.replace('index.meta', presentationPath)
  677:             else:
  678:                 presentationUrl = url + "/" + presentationPath
  679:                 
  680:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  681:     
  682:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  683:         
  684:         return docinfo
  685:    
  686:    
  687:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  688:         """gets the bibliographical information from the preseantion entry in texttools
  689:         """
  690:         dom=self.getPresentationInfoXML(url)
  691:         try:
  692:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  693:         except:
  694:             pass
  695:         try:
  696:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  697:         except:
  698:             pass
  699:         try:
  700:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  701:         except:
  702:             pass
  703:         return docinfo
  704:     
  705:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  706:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  707:         logging.debug("documentViewer (getdocinfofromimagepath) path: %s"%(path))
  708:         if docinfo is None:
  709:             docinfo = {}
  710:         path=path.replace("/mpiwg/online","")
  711:         docinfo['imagePath'] = path
  712:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  713:         
  714:         pathorig=path
  715:         for x in range(cut):       
  716:                 path=getParentDir(path)
  717:         logging.debug("documentViewer (getdocinfofromimagepath) PATH:"+path)
  718:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  719:         docinfo['imageURL'] = imageUrl
  720:         
  721:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  722:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  723:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  724:         return docinfo
  725:     
  726:     
  727:     def getDocinfo(self, mode, url):
  728:         """returns docinfo depending on mode"""
  729:         logging.debug("documentViewer (getdocinfo) mode: %s, url: %s"%(mode,url))
  730:         # look for cached docinfo in session
  731:         if self.REQUEST.SESSION.has_key('docinfo'):
  732:             docinfo = self.REQUEST.SESSION['docinfo']
  733:             # check if its still current
  734:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  735:                 logging.debug("documentViewer (getdocinfo) docinfo in session: %s"%docinfo)
  736:                 return docinfo
  737:         # new docinfo
  738:         docinfo = {'mode': mode, 'url': url}
  739:         if mode=="texttool": #index.meta with texttool information
  740:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  741:         elif mode=="imagepath":
  742:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  743:         elif mode=="filepath":
  744:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  745:         else:
  746:             logging.error("documentViewer (getdocinfo) unknown mode: %s!"%mode)
  747:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  748:                         
  749:         logging.debug("documentViewer (getdocinfo) docinfo: %s"%docinfo)
  750:         #logging.debug("documentViewer (getdocinfo) docinfo: %s"%)
  751:         self.REQUEST.SESSION['docinfo'] = docinfo
  752:         return docinfo
  753:                
  754:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None,characterNormalization=""):
  755:         """returns pageinfo with the given parameters"""
  756:         pageinfo = {}
  757:         current = getInt(current)
  758:     
  759:         pageinfo['current'] = current
  760:         rows = int(rows or self.thumbrows)
  761:         pageinfo['rows'] = rows
  762:         cols = int(cols or self.thumbcols)
  763:         pageinfo['cols'] = cols
  764:         grpsize = cols * rows
  765:         pageinfo['groupsize'] = grpsize
  766:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  767:         # int(current / grpsize) * grpsize +1))
  768:         pageinfo['start'] = start
  769:         pageinfo['end'] = start + grpsize
  770:         if (docinfo is not None) and ('numPages' in docinfo):
  771:             np = int(docinfo['numPages'])
  772:             pageinfo['end'] = min(pageinfo['end'], np)
  773:             pageinfo['numgroups'] = int(np / grpsize)
  774:             if np % grpsize > 0:
  775:                 pageinfo['numgroups'] += 1        
  776:         pageinfo['viewMode'] = viewMode
  777:         pageinfo['tocMode'] = tocMode
  778:         #pageinfo ['originalPage'] = self.getOrigPages(docinfo=None, pageinfo=None)
  779:         pageinfo['characterNormalization'] = self.REQUEST.get('characterNormalization','')
  780:         pageinfo['query'] = self.REQUEST.get('query','')
  781:         pageinfo['queryType'] = self.REQUEST.get('queryType','')
  782:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  783:         pageinfo['textPN'] = self.REQUEST.get('textPN','1')
  784:         pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
  785:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  786:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
  787:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
  788:         toc = int (pageinfo['tocPN'])
  789:         pageinfo['textPages'] =int (toc)
  790:         
  791:         
  792:         
  793:         if 'tocSize_%s'%tocMode in docinfo:
  794:             tocSize = int(docinfo['tocSize_%s'%tocMode])
  795:             tocPageSize = int(pageinfo['tocPageSize'])
  796:             # cached toc           
  797:             if tocSize%tocPageSize>0:
  798:                 tocPages=tocSize/tocPageSize+1
  799:             else:
  800:                 tocPages=tocSize/tocPageSize
  801:             pageinfo['tocPN'] = min (tocPages,toc)                    
  802:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  803:         pageinfo['sn'] =self.REQUEST.get('sn','')
  804:         return pageinfo
  805:     
  806: def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  807:         """init document viewer"""
  808:         self.title=title
  809:         self.digilibBaseUrl = digilibBaseUrl
  810:         self.thumbrows = thumbrows
  811:         self.thumbcols = thumbcols
  812:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  813:         if RESPONSE is not None:
  814:             RESPONSE.redirect('manage_main')
  815:         
  816: def manage_AddDocumentViewerForm(self):
  817:     """add the viewer form"""
  818:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  819:     return pt()
  820:   
  821: def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
  822:     """add the viewer"""
  823:     newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
  824:     self._setObject(id,newObj)
  825:     
  826:     if RESPONSE is not None:
  827:         RESPONSE.redirect('manage_main')
  828: 
  829: ## DocumentViewerTemplate class
  830: class DocumentViewerTemplate(ZopePageTemplate):
  831:     """Template for document viewer"""
  832:     meta_type="DocumentViewer Template"
  833: 
  834: 
  835: def manage_addDocumentViewerTemplateForm(self):
  836:     """Form for adding"""
  837:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  838:     return pt()
  839: 
  840: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  841:                            REQUEST=None, submit=None):
  842:     "Add a Page Template with optional file content."
  843: 
  844:     self._setObject(id, DocumentViewerTemplate(id))
  845:     ob = getattr(self, id)
  846:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  847:     logging.info("txt %s:"%txt)
  848:     ob.pt_edit(txt,"text/html")
  849:     if title:
  850:         ob.pt_setTitle(title)
  851:     try:
  852:         u = self.DestinationURL()
  853:     except AttributeError:
  854:         u = REQUEST['URL1']
  855:         
  856:     u = "%s/%s" % (u, urllib.quote(id))
  857:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  858:     return ''
  859: 
  860: 
  861:     

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