File:  [Repository] / documentViewer / documentViewer.py
Revision 1.159: download - view: text, annotated - select for diffs - revision graph
Thu Nov 25 09:03:50 2010 UTC (13 years, 6 months ago) by casties
Branches: MAIN
CVS tags: HEAD
quick fix for broken texturlpath

    1: 
    2: from OFS.Folder import Folder
    3: from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
    4: from Products.PageTemplates.PageTemplateFile import PageTemplateFile 
    5: from AccessControl import ClassSecurityInfo
    6: from AccessControl import getSecurityManager
    7: from Globals import package_home
    8: from Products.zogiLib.zogiLib import browserCheck
    9: 
   10: from Ft.Xml import EMPTY_NAMESPACE, Parse
   11: import Ft.Xml.Domlette
   12: import os.path
   13: import sys
   14: import urllib
   15: import urllib2
   16: import logging
   17: import math
   18: import urlparse 
   19: import cStringIO
   20: import re
   21: import string
   22: 
   23: def logger(txt,method,txt2):
   24:     """logging"""
   25:     logging.info(txt+ txt2)
   26:     
   27:     
   28: def getInt(number, default=0):
   29:     """returns always an int (0 in case of problems)"""
   30:     try:
   31:         return int(number)
   32:     except:
   33:         return int(default)
   34: 
   35: def getTextFromNode(nodename):
   36:     """get the cdata content of a node"""
   37:     if nodename is None:
   38:         return ""
   39:     nodelist=nodename.childNodes
   40:     rc = ""
   41:     for node in nodelist:
   42:         if node.nodeType == node.TEXT_NODE:
   43:            rc = rc + node.data
   44:     return rc
   45: 
   46: def serializeNode(node, encoding='utf-8'):
   47:     """returns a string containing node as XML"""
   48:     buf = cStringIO.StringIO()
   49:     Ft.Xml.Domlette.Print(node, stream=buf, encoding=encoding)
   50:     s = buf.getvalue()
   51:     buf.close()
   52:     return s
   53: 
   54: def browserCheck(self):
   55:     """check the browsers request to find out the browser type"""
   56:     bt = {}
   57:     ua = self.REQUEST.get_header("HTTP_USER_AGENT")
   58:     bt['ua'] = ua
   59:     bt['isIE'] = False
   60:     bt['isN4'] = False
   61:     if string.find(ua, 'MSIE') > -1:
   62:         bt['isIE'] = True
   63:     else:
   64:         bt['isN4'] = (string.find(ua, 'Mozilla/4.') > -1)
   65:         
   66:     try:
   67:         nav = ua[string.find(ua, '('):]
   68:         ie = string.split(nav, "; ")[1]
   69:         if string.find(ie, "MSIE") > -1:
   70:             bt['versIE'] = string.split(ie, " ")[1]
   71:     except: pass
   72:     
   73:     bt['isMac'] = string.find(ua, 'Macintosh') > -1
   74:     bt['isWin'] = string.find(ua, 'Windows') > -1
   75:     bt['isIEWin'] = bt['isIE'] and bt['isWin']
   76:     bt['isIEMac'] = bt['isIE'] and bt['isMac']
   77:     bt['staticHTML'] = False
   78: 
   79:     return bt
   80: 
   81:        
   82: def getParentDir(path):
   83:     """returns pathname shortened by one"""
   84:     return '/'.join(path.split('/')[0:-1])
   85:         
   86: 
   87: def getHttpData(url, data=None, num_tries=3, timeout=10):
   88:     """returns result from url+data HTTP request"""
   89:     # we do GET (by appending data to url)
   90:     if isinstance(data, str) or isinstance(data, unicode):
   91:         # if data is string then append
   92:         url = "%s?%s"%(url,data)
   93:     elif isinstance(data, dict) or isinstance(data, list) or isinstance(data, tuple):
   94:         # urlencode
   95:         url = "%s?%s"%(url,urllib.urlencode(data))
   96:     
   97:     response = None
   98:     errmsg = None
   99:     for cnt in range(num_tries):
  100:         try:
  101:             logging.debug("getHttpData(#%s %ss) url=%s"%(cnt+1,timeout,url))
  102:             if sys.version_info < (2, 6):
  103:                 # set timeout on socket -- ugly :-(
  104:                 import socket
  105:                 socket.setdefaulttimeout(float(timeout))
  106:                 response = urllib2.urlopen(url)
  107:             else:
  108:                 response = urllib2.urlopen(url,timeout=float(timeout))
  109:             # check result?
  110:             break
  111:         except urllib2.HTTPError, e:
  112:             logging.error("getHttpData: HTTP error(%s): %s"%(e.code,e))
  113:             errmsg = str(e)
  114:             # stop trying
  115:             break
  116:         except urllib2.URLError, e:
  117:             logging.error("getHttpData: URLLIB error(%s): %s"%(e.reason,e))
  118:             errmsg = str(e)
  119:             # stop trying
  120:             #break
  121: 
  122:     if response is not None:
  123:         data = response.read()
  124:         response.close()
  125:         return data
  126:     
  127:     raise IOError("ERROR fetching HTTP data from %s: %s"%(url,errmsg))
  128:     #return None
  129: 
  130: 
  131: 
  132: ##
  133: ## documentViewer class
  134: ##
  135: class documentViewer(Folder):
  136:     """document viewer"""
  137:     meta_type="Document viewer"
  138:     
  139:     security=ClassSecurityInfo()
  140:     manage_options=Folder.manage_options+(
  141:         {'label':'main config','action':'changeDocumentViewerForm'},
  142:         )
  143: 
  144:     # templates and forms
  145:     viewer_main = PageTemplateFile('zpt/viewer_main', globals())
  146:     toc_thumbs = PageTemplateFile('zpt/toc_thumbs', globals())
  147:     toc_text = PageTemplateFile('zpt/toc_text', globals())
  148:     toc_figures = PageTemplateFile('zpt/toc_figures', globals())
  149:     page_main_images = PageTemplateFile('zpt/page_main_images', globals())
  150:     page_main_text = PageTemplateFile('zpt/page_main_text', globals())
  151:     page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
  152:     page_main_gis =PageTemplateFile ('zpt/page_main_gis', globals())
  153:     page_main_xml = PageTemplateFile('zpt/page_main_xml', globals())
  154:     page_main_pureXml = PageTemplateFile('zpt/page_main_pureXml', globals())
  155:     head_main = PageTemplateFile('zpt/head_main', globals())
  156:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
  157:     info_xml = PageTemplateFile('zpt/info_xml', globals())
  158:     
  159:     
  160:     thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
  161:     security.declareProtected('View management screens','changeDocumentViewerForm')    
  162:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
  163: 
  164:     
  165:     def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
  166:         """init document viewer"""
  167:         self.id=id
  168:         self.title=title
  169:         self.thumbcols = thumbcols
  170:         self.thumbrows = thumbrows
  171:         # authgroups is list of authorized groups (delimited by ,)
  172:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  173:         # create template folder so we can always use template.something
  174:         
  175:         templateFolder = Folder('template')
  176:         #self['template'] = templateFolder # Zope-2.12 style
  177:         self._setObject('template',templateFolder) # old style
  178:         try:
  179:             import MpdlXmlTextServer
  180:             textServer = MpdlXmlTextServer.MpdlXmlTextServer(id='fulltextclient',serverName=textServerName)
  181:             #templateFolder['fulltextclient'] = xmlRpcClient
  182:             templateFolder._setObject('fulltextclient',textServer)
  183:         except Exception, e:
  184:             logging.error("Unable to create MpdlXmlTextServer for fulltextclient: "+str(e))
  185:         try:
  186:             from Products.zogiLib.zogiLib import zogiLib
  187:             zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
  188:             #templateFolder['zogilib'] = zogilib
  189:             templateFolder._setObject('zogilib',zogilib)
  190:         except Exception, e:
  191:             logging.error("Unable to create zogiLib for zogilib: "+str(e))
  192:         
  193:         
  194:     # proxy text server methods to fulltextclient
  195:     def getTextPage(self, **args):
  196:         """get page"""
  197:         return self.template.fulltextclient.getTextPage(**args)
  198: 
  199:     def getQuery(self, **args):
  200:         """get query"""
  201:         return self.template.fulltextclient.getQuery(**args)
  202:     
  203:     def getQueryResultHits(self, **args):
  204:         """get query"""
  205:         return self.template.fulltextclient.getQueryResultHits(**args)
  206:     
  207:     def getQueryResultHitsText(self, **args):
  208:         """get query"""
  209:         return self.template.fulltextclient.getQueryResultHitsText(**args)
  210:     
  211:     def getQueryResultHitsFigures(self, **args):
  212:         """get query"""
  213:         return self.template.fulltextclient.getQueryResultHitsFigures(**args)
  214:     
  215:     def getPDF(self, **args):
  216:         """get query"""
  217:         return self.template.fulltextclient.getPDF(**args)
  218: 
  219:     def getSearch(self, **args):
  220:         """get search"""
  221:         return self.template.fulltextclient.getSearch(**args)
  222:     
  223:     def getGisPlaces(self, **args):
  224:         """get gis places"""
  225:         return self.template.fulltextclient.getGisPlaces(**args)
  226:  
  227:     def getAllGisPlaces(self, **args):
  228:         """get all gis places """
  229:         return self.template.fulltextclient.getAllGisPlaces(**args)
  230:     
  231:     def getOrigPages(self, **args):
  232:         """get original page number """
  233:         return self.template.fulltextclient.getOrigPages(**args)
  234:     
  235:     def getNumPages(self, docinfo):
  236:         """get numpages"""
  237:         return self.template.fulltextclient.getNumPages(docinfo)
  238:    
  239:     def getNumTextPages(self, docinfo):
  240:         """get numpages text"""
  241:         return self.template.fulltextclient.getNumTextPages(docinfo)
  242:    
  243:     def getTranslate(self, **args):
  244:         """get translate"""
  245:         return self.template.fulltextclient.getTranslate(**args)
  246: 
  247:     def getLemma(self, **args):
  248:         """get lemma"""
  249:         return self.template.fulltextclient.getLemma(**args)
  250: 
  251:     def getToc(self, **args):
  252:         """get toc"""
  253:         return self.template.fulltextclient.getToc(**args)
  254: 
  255:     def getTocPage(self, **args):
  256:         """get tocpage"""
  257:         return self.template.fulltextclient.getTocPage(**args)
  258: 
  259:     
  260:     security.declareProtected('View','thumbs_rss')
  261:     def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
  262:         '''
  263:         view it
  264:         @param mode: defines how to access the document behind url 
  265:         @param url: url which contains display information
  266:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  267:         
  268:         '''
  269:         logging.debug("HHHHHHHHHHHHHH:load the rss")
  270:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  271:         
  272:         if not hasattr(self, 'template'):
  273:             # create template folder if it doesn't exist
  274:             self.manage_addFolder('template')
  275:             
  276:         if not self.digilibBaseUrl:
  277:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  278:             
  279:         docinfo = self.getDocinfo(mode=mode,url=url)
  280:         #pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  281:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo)
  282:         ''' ZDES '''
  283:         pt = getattr(self.template, 'thumbs_main_rss')
  284:         
  285:         if viewMode=="auto": # automodus gewaehlt
  286:             if docinfo.has_key("textURL") or docinfo.get('textURLPath',None): #texturl gesetzt und textViewer konfiguriert
  287:                 viewMode="text"
  288:             else:
  289:                 viewMode="images"
  290:                
  291:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  292:   
  293:     security.declareProtected('View','index_html')
  294:     def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None):
  295:         '''
  296:         view it
  297:         @param mode: defines how to access the document behind url 
  298:         @param url: url which contains display information
  299:         @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
  300:         @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, none)
  301:         @param characterNormalization type of text display (reg, norm, none)
  302:         @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph, fulltextMorphLemma)
  303:         '''
  304:         
  305:         logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  306:         
  307:         if not hasattr(self, 'template'):
  308:             # this won't work
  309:             logging.error("template folder missing!")
  310:             return "ERROR: template folder missing!"
  311:             
  312:         if not getattr(self, 'digilibBaseUrl', None):
  313:             self.digilibBaseUrl = self.findDigilibUrl() or "http://digilib.mpiwg-berlin.mpg.de/digitallibrary"
  314:             
  315:         docinfo = self.getDocinfo(mode=mode,url=url)
  316:         
  317:         if tocMode != "thumbs":
  318:             # get table of contents
  319:             docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
  320:             
  321:         if viewMode=="auto": # automodus gewaehlt
  322:             if docinfo.has_key('textURL') or docinfo.get('textURLPath',None): #texturl gesetzt und textViewer konfiguriert
  323:                 viewMode="text_dict"
  324:             else:
  325:                 viewMode="images"
  326:                 
  327:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
  328:         
  329:         pt = getattr(self.template, 'viewer_main')               
  330:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
  331:   
  332:     def generateMarks(self,mk):
  333:         ret=""
  334:         if mk is None:
  335:             return ""
  336:         if not isinstance(mk, list):
  337:             mk=[mk]
  338:         for m in mk:
  339:             ret+="mk=%s"%m
  340:         return ret
  341:     
  342:     
  343:     def getBrowser(self):
  344:         """getBrowser the version of browser """
  345:         names=""
  346:         names = browserCheck(self)
  347:         #logging.debug("XXXXXXXXXXXXXXXX: %s"%names)
  348:         return names
  349:         
  350:     def findDigilibUrl(self):
  351:         """try to get the digilib URL from zogilib"""
  352:         url = self.template.zogilib.getDLBaseUrl()
  353:         return url
  354: 
  355:     def getDocumentViewerURL(self):
  356:         """returns the URL of this instance"""
  357:         return self.absolute_url()
  358:     
  359:     def getStyle(self, idx, selected, style=""):
  360:         """returns a string with the given style and append 'sel' if path == selected."""
  361:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  362:         if idx == selected:
  363:             return style + 'sel'
  364:         else:
  365:             return style
  366:     
  367:     def getLink(self,param=None,val=None):
  368:         """link to documentviewer with parameter param set to val"""
  369:         params=self.REQUEST.form.copy()
  370:         if param is not None:
  371:             if val is None:
  372:                 if params.has_key(param):
  373:                     del params[param]
  374:             else:
  375:                 params[param] = str(val)
  376:                 
  377:         if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  378:                 params["mode"] = "imagepath"
  379:                 params["url"] = getParentDir(params["url"])
  380:                 
  381:         # quote values and assemble into query string
  382:         #ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  383:         ps = urllib.urlencode(params)
  384:         url=self.REQUEST['URL1']+"?"+ps
  385:         return url
  386: 
  387:     def getLinkAmp(self,param=None,val=None):
  388:         """link to documentviewer with parameter param set to val"""
  389:         params=self.REQUEST.form.copy()
  390:         if param is not None:
  391:             if val is None:
  392:                 if params.has_key(param):
  393:                     del params[param]
  394:             else:
  395:                 params[param] = str(val)
  396:                 
  397:         # quote values and assemble into query string
  398:         logging.debug("XYXXXXX: %s"%repr(params.items()))
  399:         ps = "&amp;".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  400:         url=self.REQUEST['URL1']+"?"+ps
  401:         return url
  402:     
  403:     def getInfo_xml(self,url,mode):
  404:         """returns info about the document as XML"""
  405: 
  406:         if not self.digilibBaseUrl:
  407:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  408:         
  409:         docinfo = self.getDocinfo(mode=mode,url=url)
  410:         pt = getattr(self.template, 'info_xml')
  411:         return pt(docinfo=docinfo)
  412: 
  413:     def getOptionToggle(self, newState=None, optionName='text_options_open', initialState=True):
  414:         """returns new option state"""
  415:         if not self.REQUEST.SESSION.has_key(optionName):
  416:             # not in session -- initial
  417:             opt = {'lastState': newState, 'state': initialState}
  418:         else:
  419:             opt = self.REQUEST.SESSION.get(optionName)
  420:             if opt['lastState'] != newState:
  421:                 # state in session has changed -- toggle
  422:                 opt['state'] = not opt['state']
  423:                 opt['lastState'] = newState
  424:         
  425:         self.REQUEST.SESSION[optionName] = opt
  426:         return opt['state']
  427:     
  428:     def isAccessible(self, docinfo):
  429:         """returns if access to the resource is granted"""
  430:         access = docinfo.get('accessType', None)
  431:         logging.debug("documentViewer (accessOK) access type %s"%access)
  432:         if access is not None and access == 'free':
  433:             logging.debug("documentViewer (accessOK) access is free")
  434:             return True
  435:         elif access is None or access in self.authgroups:
  436:             # only local access -- only logged in users
  437:             user = getSecurityManager().getUser()
  438:             logging.debug("documentViewer (accessOK) user=%s ip=%s"%(user,self.REQUEST.getClientAddr()))
  439:             if user is not None:
  440:                 #print "user: ", user
  441:                 return (user.getUserName() != "Anonymous User")
  442:             else:
  443:                 return False
  444:         
  445:         logging.error("documentViewer (accessOK) unknown access type %s"%access)
  446:         return False
  447:     
  448:                 
  449:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  450:         """gibt param von dlInfo aus"""
  451:         if docinfo is None:
  452:             docinfo = {}
  453:         
  454:         for x in range(cut):
  455:                
  456:                 path=getParentDir(path)
  457:        
  458:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  459:     
  460:         logging.debug("documentViewer (getparamfromdigilib) dirInfo from %s"%(infoUrl))
  461:         
  462:         txt = getHttpData(infoUrl)
  463:         if txt is None:
  464:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  465: 
  466:         dom = Parse(txt)
  467:         sizes=dom.xpath("//dir/size")
  468:         logging.debug("documentViewer (getparamfromdigilib) dirInfo:size"%sizes)
  469:         
  470:         if sizes:
  471:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  472:         else:
  473:             docinfo['numPages'] = 0
  474:             
  475:         # TODO: produce and keep list of image names and numbers
  476:                         
  477:         return docinfo
  478:     
  479:     def getIndexMetaPath(self,url):
  480:         """gib nur den Pfad zurueck"""
  481:         regexp = re.compile(r".*(experimental|permanent)/(.*)")
  482:         regpath = regexp.match(url)
  483:         if (regpath==None):
  484:             return ""
  485:         logging.debug("(getDomFromIndexMeta): URLXAXA: %s"%regpath.group(2))            
  486:         return ("/mpiwg/online/"+regpath.group(1)+"/"+regpath.group(2))
  487:      
  488:     
  489:     
  490:     def getIndexMetaUrl(self,url):
  491:         """returns utr  of index.meta document at url"""
  492:       
  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:             if not metaUrl.endswith("index.meta"):
  502:                 metaUrl += "/index.meta"
  503:         
  504:         return metaUrl
  505:     
  506:     def getDomFromIndexMeta(self, url):
  507:         """get dom from index meta"""
  508:         dom = None
  509:         metaUrl = self.getIndexMetaUrl(url)
  510:                 
  511:         logging.debug("(getDomFromIndexMeta): METAURL: %s"%metaUrl)
  512:         txt=getHttpData(metaUrl)
  513:         if txt is None:
  514:             raise IOError("Unable to read index meta from %s"%(url))
  515:         
  516:         dom = Parse(txt)
  517:         return dom
  518:     
  519:     def getPresentationInfoXML(self, url):
  520:         """returns dom of info.xml document at url"""
  521:         dom = None
  522:         metaUrl = None
  523:         if url.startswith("http://"):
  524:             # real URL
  525:             metaUrl = url
  526:         else:
  527:             # online path
  528:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  529:             metaUrl=server+url.replace("/mpiwg/online","")
  530:         
  531:         txt=getHttpData(metaUrl)
  532:         if txt is None:
  533:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  534:             
  535:         dom = Parse(txt)
  536:         return dom
  537:                         
  538:         
  539:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  540:         """gets authorization info from the index.meta file at path or given by dom"""
  541:         logging.debug("documentViewer (getauthinfofromindexmeta) path: %s"%(path))
  542:         
  543:         access = None
  544:         
  545:         if docinfo is None:
  546:             docinfo = {}
  547:             
  548:         if dom is None:
  549:             for x in range(cut):
  550:                 path=getParentDir(path)
  551:             dom = self.getDomFromIndexMeta(path)
  552:        
  553:         acctype = dom.xpath("//access-conditions/access/@type")
  554:         if acctype and (len(acctype)>0):
  555:             access=acctype[0].value
  556:             if access in ['group', 'institution']:
  557:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  558:             
  559:         docinfo['accessType'] = access
  560:         return docinfo
  561:     
  562:         
  563:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  564:         """gets bibliographical info from the index.meta file at path or given by dom"""
  565:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  566:         
  567:         if docinfo is None:
  568:             docinfo = {}
  569:         
  570:         if dom is None:
  571:             for x in range(cut):
  572:                 path=getParentDir(path)
  573:             dom = self.getDomFromIndexMeta(path)
  574:         
  575:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  576:         
  577:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  578:         # put in all raw bib fields as dict "bib"
  579:         bib = dom.xpath("//bib/*")
  580:         if bib and len(bib)>0:
  581:             bibinfo = {}
  582:             for e in bib:
  583:                 bibinfo[e.localName] = getTextFromNode(e)
  584:             docinfo['bib'] = bibinfo
  585:         
  586:         # extract some fields (author, title, year) according to their mapping
  587:         metaData=self.metadata.main.meta.bib
  588:         bibtype=dom.xpath("//bib/@type")
  589:         if bibtype and (len(bibtype)>0):
  590:             bibtype=bibtype[0].value
  591:         else:
  592:             bibtype="generic"
  593:             
  594:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  595:         docinfo['bib_type'] = bibtype
  596:         bibmap=metaData.generateMappingForType(bibtype)
  597:         logging.debug("documentViewer (getbibinfofromindexmeta) bibmap:"+repr(bibmap))
  598:         logging.debug("documentViewer (getbibinfofromindexmeta) bibtype:"+repr(bibtype))
  599:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  600:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  601:             try:
  602:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  603:             except: pass
  604:             try:
  605:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  606:             except: pass
  607:             try:
  608:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  609:             except: pass
  610:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  611:             try:
  612:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  613:             except:
  614:                 docinfo['lang']=''
  615: 
  616:         return docinfo
  617:     
  618:      
  619:     def getNameFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  620:         """gets name info from the index.meta file at path or given by dom"""
  621:         if docinfo is None:
  622:             docinfo = {}
  623:         
  624:         if dom is None:
  625:             for x in range(cut):
  626:                 path=getParentDir(path)
  627:             dom = self.getDomFromIndexMeta(path)
  628: 
  629:         docinfo['name']=getTextFromNode(dom.xpath("/resource/name")[0])
  630:         logging.debug("documentViewer docinfo[name] %s"%docinfo['name'])
  631:         return docinfo
  632:     
  633:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  634:         """parse texttool tag in index meta"""
  635:         logging.debug("documentViewer (getdocinfofromtexttool) url: %s" % (url))
  636:         if docinfo is None:
  637:            docinfo = {}
  638:         if docinfo.get('lang', None) is None:
  639:             docinfo['lang'] = '' # default keine Sprache gesetzt
  640:         if dom is None:
  641:             dom = self.getDomFromIndexMeta(url)
  642:         
  643:         archivePath = None
  644:         archiveName = None
  645:     
  646:         archiveNames = dom.xpath("//resource/name")
  647:         if archiveNames and (len(archiveNames) > 0):
  648:             archiveName = getTextFromNode(archiveNames[0])
  649:         else:
  650:             logging.warning("documentViewer (getdocinfofromtexttool) resource/name missing in: %s" % (url))
  651:         
  652:         archivePaths = dom.xpath("//resource/archive-path")
  653:         if archivePaths and (len(archivePaths) > 0):
  654:             archivePath = getTextFromNode(archivePaths[0])
  655:             # clean up archive path
  656:             if archivePath[0] != '/':
  657:                 archivePath = '/' + archivePath
  658:             if archiveName and (not archivePath.endswith(archiveName)):
  659:                 archivePath += "/" + archiveName
  660:         else:
  661:             # try to get archive-path from url
  662:             logging.warning("documentViewer (getdocinfofromtexttool) resource/archive-path missing in: %s" % (url))
  663:             if (not url.startswith('http')):
  664:                 archivePath = url.replace('index.meta', '')
  665:                 
  666:         if archivePath is None:
  667:             # we balk without archive-path
  668:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  669:         
  670:         imageDirs = dom.xpath("//texttool/image")
  671:         if imageDirs and (len(imageDirs) > 0):
  672:             imageDir = getTextFromNode(imageDirs[0])
  673:             
  674:         else:
  675:             # we balk with no image tag / not necessary anymore because textmode is now standard
  676:             #raise IOError("No text-tool info in %s"%(url))
  677:             imageDir = ""
  678:             #xquery="//pb"  
  679:             docinfo['imagePath'] = "" # keine Bilder
  680:             docinfo['imageURL'] = ""
  681:             
  682:         if imageDir and archivePath:
  683:             #print "image: ", imageDir, " archivepath: ", archivePath
  684:             imageDir = os.path.join(archivePath, imageDir)
  685:             imageDir = imageDir.replace("/mpiwg/online", '')
  686:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  687:             docinfo['imagePath'] = imageDir
  688:             
  689:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  690:             
  691:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  692:         if viewerUrls and (len(viewerUrls) > 0):
  693:             viewerUrl = getTextFromNode(viewerUrls[0])
  694:             docinfo['viewerURL'] = viewerUrl
  695:         
  696:         # old style text URL
  697:         textUrls = dom.xpath("//texttool/text")
  698:         if textUrls and (len(textUrls) > 0):
  699:             textUrl = getTextFromNode(textUrls[0])
  700:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  701:                 textUrl = os.path.join(archivePath, textUrl) 
  702:             # fix URLs starting with /mpiwg/online
  703:             if textUrl.startswith("/mpiwg/online"):
  704:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  705:             
  706:             docinfo['textURL'] = textUrl
  707:     
  708:         # new style text-url-path
  709:         textUrls = dom.xpath("//texttool/text-url-path")
  710:         if textUrls and (len(textUrls) > 0):
  711:             textUrl = getTextFromNode(textUrls[0])
  712:             docinfo['textURLPath'] = textUrl
  713:             if not docinfo['imagePath']:
  714:                 # text-only, no page images
  715:                 docinfo = self.getNumTextPages(docinfo)
  716:          
  717:         presentationUrls = dom.xpath("//texttool/presentation")
  718:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  719:         docinfo = self.getNameFromIndexMeta(url, docinfo=docinfo, dom=dom)
  720:         
  721:         
  722:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  723:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  724:              # durch den relativen Pfad auf die presentation infos
  725:             presentationPath = getTextFromNode(presentationUrls[0])
  726:             if url.endswith("index.meta"): 
  727:                 presentationUrl = url.replace('index.meta', presentationPath)
  728:             else:
  729:                 presentationUrl = url + "/" + presentationPath
  730:                 
  731:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  732:     
  733:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  734:         
  735:         return docinfo
  736:    
  737:    
  738:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  739:         """gets the bibliographical information from the preseantion entry in texttools
  740:         """
  741:         dom=self.getPresentationInfoXML(url)
  742:         try:
  743:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  744:         except:
  745:             pass
  746:         try:
  747:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  748:         except:
  749:             pass
  750:         try:
  751:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  752:         except:
  753:             pass
  754:         return docinfo
  755:     
  756:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  757:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  758:         logging.debug("documentViewer (getdocinfofromimagepath) path: %s"%(path))
  759:         if docinfo is None:
  760:             docinfo = {}
  761:         path=path.replace("/mpiwg/online","")
  762:         docinfo['imagePath'] = path
  763:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  764:         
  765:         pathorig=path
  766:         for x in range(cut):       
  767:                 path=getParentDir(path)
  768:         logging.debug("documentViewer (getdocinfofromimagepath) PATH:"+path)
  769:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  770:         docinfo['imageURL'] = imageUrl
  771:         
  772:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  773:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  774:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  775:         return docinfo
  776:     
  777:     
  778:     def getDocinfo(self, mode, url):
  779:         """returns docinfo depending on mode"""
  780:         logging.debug("documentViewer (getdocinfo) mode: %s, url: %s"%(mode,url))
  781:         # look for cached docinfo in session
  782:         if self.REQUEST.SESSION.has_key('docinfo'):
  783:             docinfo = self.REQUEST.SESSION['docinfo']
  784:             # check if its still current
  785:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  786:                 logging.debug("documentViewer (getdocinfo) docinfo in session: %s"%docinfo)
  787:                 return docinfo
  788:         # new docinfo
  789:         docinfo = {'mode': mode, 'url': url}
  790:         if mode=="texttool": #index.meta with texttool information
  791:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  792:         elif mode=="imagepath":
  793:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  794:         elif mode=="filepath":
  795:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  796:         else:
  797:             logging.error("documentViewer (getdocinfo) unknown mode: %s!"%mode)
  798:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  799:                 
  800:         # FIXME: fake texturlpath 
  801:         if not docinfo.has_key('textURLPath'):
  802:             docinfo['textURLPath'] = None
  803:         
  804:         logging.debug("documentViewer (getdocinfo) docinfo: %s"%docinfo)
  805:         #logging.debug("documentViewer (getdocinfo) docinfo: %s"%)
  806:         self.REQUEST.SESSION['docinfo'] = docinfo
  807:         return docinfo
  808:                
  809:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None):
  810:         """returns pageinfo with the given parameters"""
  811:         pageinfo = {}
  812:         current = getInt(current)
  813:     
  814:         pageinfo['current'] = current
  815:         rows = int(rows or self.thumbrows)
  816:         pageinfo['rows'] = rows
  817:         cols = int(cols or self.thumbcols)
  818:         pageinfo['cols'] = cols
  819:         grpsize = cols * rows
  820:         pageinfo['groupsize'] = grpsize
  821:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  822:         # int(current / grpsize) * grpsize +1))
  823:         pageinfo['start'] = start
  824:         pageinfo['end'] = start + grpsize
  825:         if (docinfo is not None) and ('numPages' in docinfo):
  826:             np = int(docinfo['numPages'])
  827:             pageinfo['end'] = min(pageinfo['end'], np)
  828:             pageinfo['numgroups'] = int(np / grpsize)
  829:             if np % grpsize > 0:
  830:                 pageinfo['numgroups'] += 1        
  831:         pageinfo['viewMode'] = viewMode
  832:         pageinfo['tocMode'] = tocMode
  833:         pageinfo['characterNormalization'] = self.REQUEST.get('characterNormalization','regPlusNorm')
  834:         pageinfo['optionToggle'] = self.REQUEST.get('optionToggle','')
  835:         pageinfo['query'] = self.REQUEST.get('query','') 
  836:         pageinfo['queryType'] = self.REQUEST.get('queryType','')
  837:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  838:         pageinfo['textPN'] = self.REQUEST.get('textPN','1')
  839:         pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
  840:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  841:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
  842:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
  843:         toc = int (pageinfo['tocPN'])
  844:         pageinfo['textPages'] =int (toc)
  845:         
  846:         
  847:         
  848:         if 'tocSize_%s'%tocMode in docinfo:
  849:             tocSize = int(docinfo['tocSize_%s'%tocMode])
  850:             tocPageSize = int(pageinfo['tocPageSize'])
  851:             # cached toc           
  852:             if tocSize%tocPageSize>0:
  853:                 tocPages=tocSize/tocPageSize+1
  854:             else:
  855:                 tocPages=tocSize/tocPageSize
  856:             pageinfo['tocPN'] = min (tocPages,toc)                    
  857:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  858:         pageinfo['sn'] =self.REQUEST.get('sn','')
  859:         return pageinfo
  860:     
  861: def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  862:         """init document viewer"""
  863:         self.title=title
  864:         self.digilibBaseUrl = digilibBaseUrl
  865:         self.thumbrows = thumbrows
  866:         self.thumbcols = thumbcols
  867:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  868:         if RESPONSE is not None:
  869:             RESPONSE.redirect('manage_main')
  870:         
  871: def manage_AddDocumentViewerForm(self):
  872:     """add the viewer form"""
  873:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  874:     return pt()
  875:   
  876: def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
  877:     """add the viewer"""
  878:     newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
  879:     self._setObject(id,newObj)
  880:     
  881:     if RESPONSE is not None:
  882:         RESPONSE.redirect('manage_main')
  883: 
  884: ## DocumentViewerTemplate class
  885: class DocumentViewerTemplate(ZopePageTemplate):
  886:     """Template for document viewer"""
  887:     meta_type="DocumentViewer Template"
  888: 
  889: 
  890: def manage_addDocumentViewerTemplateForm(self):
  891:     """Form for adding"""
  892:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  893:     return pt()
  894: 
  895: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  896:                            REQUEST=None, submit=None):
  897:     "Add a Page Template with optional file content."
  898: 
  899:     self._setObject(id, DocumentViewerTemplate(id))
  900:     ob = getattr(self, id)
  901:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  902:     logging.info("txt %s:"%txt)
  903:     ob.pt_edit(txt,"text/html")
  904:     if title:
  905:         ob.pt_setTitle(title)
  906:     try:
  907:         u = self.DestinationURL()
  908:     except AttributeError:
  909:         u = REQUEST['URL1']
  910:         
  911:     u = "%s/%s" % (u, urllib.quote(id))
  912:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  913:     return ''
  914: 
  915: 
  916:     

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