File:  [Repository] / documentViewer / documentViewer.py
Revision 1.172: download - view: text, annotated - select for diffs - revision graph
Mon Mar 21 16:32:21 2011 UTC (13 years, 2 months ago) by abukhman
Branches: MAIN
CVS tags: HEAD
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    1: 
    2: from OFS.Folder import Folder
    3: from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
    4: from Products.PageTemplates.PageTemplateFile import PageTemplateFile 
    5: from AccessControl import ClassSecurityInfo
    6: from AccessControl import getSecurityManager
    7: from Globals import package_home
    8: from Products.zogiLib.zogiLib import browserCheck
    9: 
   10: from Ft.Xml import EMPTY_NAMESPACE, Parse
   11: import Ft.Xml.Domlette
   12: import os.path
   13: import sys
   14: import urllib
   15: import urllib2
   16: import logging
   17: import math
   18: import urlparse 
   19: import cStringIO
   20: import re
   21: 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:     stream = cStringIO.StringIO()
   49:     #logging.debug("BUF: %s"%(stream))
   50:     Ft.Xml.Domlette.Print(node, stream=stream, encoding=encoding)
   51:     s = stream.getvalue()
   52:     #logging.debug("BUF: %s"%(s))
   53:     stream.close()
   54:     return s
   55: 
   56: def browserCheck(self):
   57:     """check the browsers request to find out the browser type"""
   58:     bt = {}
   59:     ua = self.REQUEST.get_header("HTTP_USER_AGENT")
   60:     bt['ua'] = ua
   61:     bt['isIE'] = False
   62:     bt['isN4'] = False
   63:     bt['versFirefox']=""
   64:     bt['versIE']=""
   65:     bt['versSafariChrome']=""
   66:     bt['versOpera']=""
   67:     
   68:     if string.find(ua, 'MSIE') > -1:
   69:         bt['isIE'] = True
   70:     else:
   71:         bt['isN4'] = (string.find(ua, 'Mozilla/4.') > -1)
   72:     # Safari oder Chrome identification    
   73:     try:
   74:         nav = ua[string.find(ua, '('):]
   75:         nav1=ua[string.find(ua,')'):]
   76:         nav2=nav1[string.find(nav1,'('):]
   77:         nav3=nav2[string.find(nav2,')'):]
   78:         ie = string.split(nav, "; ")[1]
   79:         ie1 =string.split(nav1, " ")[2]
   80:         ie2 =string.split(nav3, " ")[1]
   81:         ie3 =string.split(nav3, " ")[2]
   82:         if string.find(ie3, "Safari") >-1:
   83:             bt['versSafariChrome']=string.split(ie2, "/")[1]
   84:     except: pass
   85:     # IE identification
   86:     try:
   87:         nav = ua[string.find(ua, '('):]
   88:         ie = string.split(nav, "; ")[1]
   89:         if string.find(ie, "MSIE") > -1:
   90:             bt['versIE'] = string.split(ie, " ")[1]
   91:     except:pass
   92:     # Firefox identification
   93:     try:
   94:         nav = ua[string.find(ua, '('):]
   95:         nav1=ua[string.find(ua,')'):]
   96:         if string.find(ie1, "Firefox") >-1:
   97:             nav5= string.split(ie1, "/")[1]
   98:             logging.debug("FIREFOX: %s"%(nav5))
   99:             bt['versFirefox']=nav5[0:3]                   
  100:     except:pass
  101:     #Opera identification
  102:     try:
  103:         if string.find(ua,"Opera") >-1:
  104:             nav = ua[string.find(ua, '('):]
  105:             nav1=nav[string.find(nav,')'):]
  106:             bt['versOpera']=string.split(nav1,"/")[2]
  107:     except:pass
  108:     
  109:     bt['isMac'] = string.find(ua, 'Macintosh') > -1
  110:     bt['isWin'] = string.find(ua, 'Windows') > -1
  111:     bt['isIEWin'] = bt['isIE'] and bt['isWin']
  112:     bt['isIEMac'] = bt['isIE'] and bt['isMac']
  113:     bt['staticHTML'] = False
  114: 
  115:     return bt
  116: 
  117:        
  118: def getParentDir(path):
  119:     """returns pathname shortened by one"""
  120:     return '/'.join(path.split('/')[0:-1])
  121:         
  122: 
  123: def getHttpData(url, data=None, num_tries=3, timeout=10):
  124:     """returns result from url+data HTTP request"""
  125:     # we do GET (by appending data to url)
  126:     if isinstance(data, str) or isinstance(data, unicode):
  127:         # if data is string then append
  128:         url = "%s?%s"%(url,data)
  129:     elif isinstance(data, dict) or isinstance(data, list) or isinstance(data, tuple):
  130:         # urlencode
  131:         url = "%s?%s"%(url,urllib.urlencode(data))
  132:     
  133:     response = None
  134:     errmsg = None
  135:     for cnt in range(num_tries):
  136:         try:
  137:             logging.debug("getHttpData(#%s %ss) url=%s"%(cnt+1,timeout,url))
  138:             if sys.version_info < (2, 6):
  139:                 # set timeout on socket -- ugly :-(
  140:                 import socket
  141:                 socket.setdefaulttimeout(float(timeout))
  142:                 response = urllib2.urlopen(url)
  143:             else:
  144:                 response = urllib2.urlopen(url,timeout=float(timeout))
  145:             # check result?
  146:             break
  147:         except urllib2.HTTPError, e:
  148:             logging.error("getHttpData: HTTP error(%s): %s"%(e.code,e))
  149:             errmsg = str(e)
  150:             # stop trying
  151:             break
  152:         except urllib2.URLError, e:
  153:             logging.error("getHttpData: URLLIB error(%s): %s"%(e.reason,e))
  154:             errmsg = str(e)
  155:             # stop trying
  156:             #break
  157: 
  158:     if response is not None:
  159:         data = response.read()
  160:         response.close()
  161:         return data
  162:     
  163:     raise IOError("ERROR fetching HTTP data from %s: %s"%(url,errmsg))
  164:     #return None
  165: 
  166: ##
  167: ## documentViewer class
  168: ##
  169: class documentViewer(Folder):
  170:     """document viewer"""
  171:     meta_type="Document viewer"
  172:     
  173:     security=ClassSecurityInfo()
  174:     manage_options=Folder.manage_options+(
  175:         {'label':'main config','action':'changeDocumentViewerForm'},
  176:         )
  177: 
  178:     # templates and forms
  179:     viewer_main = PageTemplateFile('zpt/viewer_main', globals())
  180:     toc_thumbs = PageTemplateFile('zpt/toc_thumbs', globals())
  181:     toc_text = PageTemplateFile('zpt/toc_text', globals())
  182:     toc_figures = PageTemplateFile('zpt/toc_figures', globals())
  183:     page_main_images = PageTemplateFile('zpt/page_main_images', globals())
  184:     page_main_double = PageTemplateFile('zpt/page_main_double', globals())
  185:     page_main_text = PageTemplateFile('zpt/page_main_text', globals())
  186:     page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
  187:     page_main_gis =PageTemplateFile ('zpt/page_main_gis', globals())
  188:     page_main_xml = PageTemplateFile('zpt/page_main_xml', globals())
  189:     page_main_pureXml = PageTemplateFile('zpt/page_main_pureXml', globals())
  190:     head_main = PageTemplateFile('zpt/head_main', globals())
  191:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
  192:     info_xml = PageTemplateFile('zpt/info_xml', globals())
  193:     
  194:     
  195:     thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
  196:     security.declareProtected('View management screens','changeDocumentViewerForm')    
  197:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
  198: 
  199:     
  200:     def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
  201:         """init document viewer"""
  202:         self.id=id
  203:         self.title=title
  204:         self.thumbcols = thumbcols
  205:         self.thumbrows = thumbrows
  206:         # authgroups is list of authorized groups (delimited by ,)
  207:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  208:         # create template folder so we can always use template.something
  209:         
  210:         templateFolder = Folder('template')
  211:         #self['template'] = templateFolder # Zope-2.12 style
  212:         self._setObject('template',templateFolder) # old style
  213:         try:
  214:             import MpdlXmlTextServer
  215:             textServer = MpdlXmlTextServer.MpdlXmlTextServer(id='fulltextclient',serverName=textServerName)
  216:             #templateFolder['fulltextclient'] = xmlRpcClient
  217:             templateFolder._setObject('fulltextclient',textServer)
  218:         except Exception, e:
  219:             logging.error("Unable to create MpdlXmlTextServer for fulltextclient: "+str(e))
  220:         try:
  221:             from Products.zogiLib.zogiLib import zogiLib
  222:             zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
  223:             #templateFolder['zogilib'] = zogilib
  224:             templateFolder._setObject('zogilib',zogilib)
  225:         except Exception, e:
  226:             logging.error("Unable to create zogiLib for zogilib: "+str(e))
  227:         
  228:         
  229:     # proxy text server methods to fulltextclient
  230:     def getTextPage(self, **args):
  231:         """get page"""
  232:         return self.template.fulltextclient.getTextPage(**args)
  233: 
  234:     def getOrigPages(self, **args):
  235:         """get page"""
  236:         return self.template.fulltextclient.getOrigPages(**args)
  237:     
  238:     def getOrigPagesNorm(self, **args):
  239:         """get page"""
  240:         return self.template.fulltextclient.getOrigPagesNorm(**args)
  241: 
  242:     def getQuery(self, **args):
  243:         """get query in search"""
  244:         return self.template.fulltextclient.getQuery(**args)
  245:      
  246:     def getSearch(self, **args):
  247:         """get search"""
  248:         return self.template.fulltextclient.getSearch(**args)
  249:     
  250:     def getGisPlaces(self, **args):
  251:         """get gis places"""
  252:         return self.template.fulltextclient.getGisPlaces(**args)
  253:  
  254:     def getAllGisPlaces(self, **args):
  255:         """get all gis places """
  256:         return self.template.fulltextclient.getAllGisPlaces(**args)
  257:        
  258:     def getTranslate(self, **args):
  259:         """get translate"""
  260:         return self.template.fulltextclient.getTranslate(**args)
  261: 
  262:     def getLemma(self, **args):
  263:         """get lemma"""
  264:         return self.template.fulltextclient.getLemma(**args)
  265: 
  266:     def getToc(self, **args):
  267:         """get toc"""
  268:         return self.template.fulltextclient.getToc(**args)
  269: 
  270:     def getTocPage(self, **args):
  271:         """get tocpage"""
  272:         return self.template.fulltextclient.getTocPage(**args)
  273: 
  274:     
  275:     security.declareProtected('View','thumbs_rss')
  276:     def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
  277:         '''
  278:         view it
  279:         @param mode: defines how to access the document behind url 
  280:         @param url: url which contains display information
  281:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  282:         
  283:         '''
  284:         logging.debug("HHHHHHHHHHHHHH:load the rss")
  285:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  286:         
  287:         if not hasattr(self, 'template'):
  288:             # create template folder if it doesn't exist
  289:             self.manage_addFolder('template')
  290:             
  291:         if not self.digilibBaseUrl:
  292:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  293:             
  294:         docinfo = self.getDocinfo(mode=mode,url=url)
  295:         #pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  296:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo)
  297:         ''' ZDES '''
  298:         pt = getattr(self.template, 'thumbs_main_rss')
  299:         
  300:         if viewMode=="auto": # automodus gewaehlt
  301:             if docinfo.has_key("textURL") or docinfo.get('textURLPath',None): #texturl gesetzt und textViewer konfiguriert
  302:                 viewMode="text"
  303:             else:
  304:                 viewMode="images"
  305:                
  306:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  307:   
  308:     security.declareProtected('View','index_html')
  309:     def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None):
  310:         '''
  311:         view it
  312:         @param mode: defines how to access the document behind url 
  313:         @param url: url which contains display information
  314:         @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
  315:         @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, none)
  316:         @param characterNormalization type of text display (reg, norm, none)
  317:         @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph, fulltextMorphLemma)
  318:         '''
  319:         
  320:         logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  321:         
  322:         if not hasattr(self, 'template'):
  323:             # this won't work
  324:             logging.error("template folder missing!")
  325:             return "ERROR: template folder missing!"
  326:             
  327:         if not getattr(self, 'digilibBaseUrl', None):
  328:             self.digilibBaseUrl = self.findDigilibUrl() or "http://digilib.mpiwg-berlin.mpg.de/digitallibrary"
  329:             
  330:         docinfo = self.getDocinfo(mode=mode,url=url)
  331:         
  332:         if tocMode != "thumbs":
  333:             # get table of contents
  334:             docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
  335:             
  336:         if viewMode=="auto": # automodus gewaehlt
  337:             if docinfo.has_key('textURL') or docinfo.get('textURLPath',None): #texturl gesetzt und textViewer konfiguriert
  338:                 viewMode="text_dict"
  339:             else:
  340:                 viewMode="images"
  341:                 
  342:         pageinfo = self.getPageinfo(start=start,current=pn, docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
  343:         
  344:         if (docinfo.get('textURLPath',None)):
  345:             page = self.getTextPage(docinfo=docinfo, pageinfo=pageinfo)
  346:             pageinfo['textPage'] = page
  347:         tt = getattr(self, 'template')   
  348:         pt = getattr(tt, 'viewer_main')               
  349:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
  350:   
  351:     def generateMarks(self,mk):
  352:         ret=""
  353:         if mk is None:
  354:             return ""
  355:         if not isinstance(mk, list):
  356:             mk=[mk]
  357:         for m in mk:
  358:             ret+="mk=%s"%m
  359:         return ret
  360:     
  361:     
  362:     def getBrowser(self):
  363:         """getBrowser the version of browser """
  364:         bt = browserCheck(self)
  365:         logging.debug("BROWSER VERSION: %s"%(bt))
  366:         return bt
  367:         
  368:     def findDigilibUrl(self):
  369:         """try to get the digilib URL from zogilib"""
  370:         url = self.template.zogilib.getDLBaseUrl()
  371:         return url
  372: 
  373:     def getDocumentViewerURL(self):
  374:         """returns the URL of this instance"""
  375:         return self.absolute_url()
  376:     
  377:     def getStyle(self, idx, selected, style=""):
  378:         """returns a string with the given style and append 'sel' if path == selected."""
  379:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  380:         if idx == selected:
  381:             return style + 'sel'
  382:         else:
  383:             return style
  384:     
  385:     def getLink(self, param=None, val=None, params=None, baseUrl=None, paramSep='&'):
  386:         """returns URL to documentviewer with parameter param set to val or from dict params"""
  387:         # copy existing request params
  388:         urlParams=self.REQUEST.form.copy()
  389:         # change single param
  390:         if param is not None:
  391:             if val is None:
  392:                 if urlParams.has_key(param):
  393:                     del urlParams[param]
  394:             else:
  395:                 urlParams[param] = str(val)
  396:                 
  397:         # change more params
  398:         if params is not None:
  399:             for k in params.keys():
  400:                 v = params[k]
  401:                 if v is None:
  402:                     # val=None removes param
  403:                     if urlParams.has_key(k):
  404:                         del urlParams[k]
  405:                         
  406:                 else:
  407:                     urlParams[k] = v
  408: 
  409:         # FIXME: does this belong here?
  410:         if urlParams.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  411:                 urlParams["mode"] = "imagepath"
  412:                 urlParams["url"] = getParentDir(urlParams["url"])
  413:                 
  414:         # quote values and assemble into query string (not escaping '/')
  415:         ps = paramSep.join(["%s=%s"%(k,urllib.quote_plus(v,'/')) for (k, v) in urlParams.items()])
  416:         #ps = urllib.urlencode(urlParams)
  417:         if baseUrl is None:
  418:             baseUrl = self.REQUEST['URL1']
  419:             
  420:         url = "%s?%s"%(baseUrl, ps)
  421:         return url
  422: 
  423: 
  424:     def getLinkAmp(self, param=None, val=None, params=None, baseUrl=None):
  425:         """link to documentviewer with parameter param set to val"""
  426:         return self.getLink(param, val, params, baseUrl, '&amp;')
  427:     
  428:     def getInfo_xml(self,url,mode):
  429:         """returns info about the document as XML"""
  430: 
  431:         if not self.digilibBaseUrl:
  432:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  433:         
  434:         docinfo = self.getDocinfo(mode=mode,url=url)
  435:         pt = getattr(self.template, 'info_xml')
  436:         return pt(docinfo=docinfo)
  437: 
  438:     def getOptionToggle(self, newState=None, optionName='text_options_open', initialState=True):
  439:         """returns new option state"""
  440:         if not self.REQUEST.SESSION.has_key(optionName):
  441:             # not in session -- initial
  442:             opt = {'lastState': newState, 'state': initialState}
  443:         else:
  444:             opt = self.REQUEST.SESSION.get(optionName)
  445:             if opt['lastState'] != newState:
  446:                 # state in session has changed -- toggle
  447:                 opt['state'] = not opt['state']
  448:                 opt['lastState'] = newState
  449:         
  450:         self.REQUEST.SESSION[optionName] = opt
  451:         return opt['state']
  452:     
  453:     def isAccessible(self, docinfo):
  454:         """returns if access to the resource is granted"""
  455:         access = docinfo.get('accessType', None)
  456:         logging.debug("documentViewer (accessOK) access type %s"%access)
  457:         if access is not None and access == 'free':
  458:             logging.debug("documentViewer (accessOK) access is free")
  459:             return True
  460:         elif access is None or access in self.authgroups:
  461:             # only local access -- only logged in users
  462:             user = getSecurityManager().getUser()
  463:             logging.debug("documentViewer (accessOK) user=%s ip=%s"%(user,self.REQUEST.getClientAddr()))
  464:             if user is not None:
  465:                 #print "user: ", user
  466:                 return (user.getUserName() != "Anonymous User")
  467:             else:
  468:                 return False
  469:         
  470:         logging.error("documentViewer (accessOK) unknown access type %s"%access)
  471:         return False
  472:     
  473:                 
  474:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  475:         """gibt param von dlInfo aus"""
  476:         if docinfo is None:
  477:             docinfo = {}
  478:         
  479:         for x in range(cut):
  480:                
  481:                 path=getParentDir(path)
  482:        
  483:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  484:     
  485:         logging.debug("documentViewer (getparamfromdigilib) dirInfo from %s"%(infoUrl))
  486:         
  487:         txt = getHttpData(infoUrl)
  488:         if txt is None:
  489:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  490: 
  491:         dom = Parse(txt)
  492:         sizes=dom.xpath("//dir/size")
  493:         logging.debug("documentViewer (getparamfromdigilib) dirInfo:size"%sizes)
  494:         
  495:         if sizes:
  496:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  497:         else:
  498:             docinfo['numPages'] = 0
  499:             
  500:         # TODO: produce and keep list of image names and numbers
  501:                         
  502:         return docinfo
  503:     
  504:     def getIndexMetaPath(self,url):
  505:         """gib nur den Pfad zurueck"""
  506:         regexp = re.compile(r".*(experimental|permanent)/(.*)")
  507:         regpath = regexp.match(url)
  508:         if (regpath==None):
  509:             return ""
  510:         logging.debug("(getDomFromIndexMeta): URLXAXA: %s"%regpath.group(2))            
  511:         return ("/mpiwg/online/"+regpath.group(1)+"/"+regpath.group(2))
  512:      
  513:     
  514:     
  515:     def getIndexMetaUrl(self,url):
  516:         """returns utr  of index.meta document at url"""
  517:       
  518:         metaUrl = None
  519:         if url.startswith("http://"):
  520:             # real URL
  521:             metaUrl = url
  522:         else:
  523:             # online path
  524:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  525:             metaUrl=server+url.replace("/mpiwg/online","")
  526:             if not metaUrl.endswith("index.meta"):
  527:                 metaUrl += "/index.meta"
  528:         
  529:         return metaUrl
  530:     
  531:     def getDomFromIndexMeta(self, url):
  532:         """get dom from index meta"""
  533:         dom = None
  534:         metaUrl = self.getIndexMetaUrl(url)
  535:                 
  536:         logging.debug("(getDomFromIndexMeta): METAURL: %s"%metaUrl)
  537:         txt=getHttpData(metaUrl)
  538:         if txt is None:
  539:             raise IOError("Unable to read index meta from %s"%(url))
  540:         
  541:         dom = Parse(txt)
  542:         return dom
  543:     
  544:     def getPresentationInfoXML(self, url):
  545:         """returns dom of info.xml document at url"""
  546:         dom = None
  547:         metaUrl = None
  548:         if url.startswith("http://"):
  549:             # real URL
  550:             metaUrl = url
  551:         else:
  552:             # online path
  553:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  554:             metaUrl=server+url.replace("/mpiwg/online","")
  555:         
  556:         txt=getHttpData(metaUrl)
  557:         if txt is None:
  558:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  559:             
  560:         dom = Parse(txt)
  561:         return dom
  562:                         
  563:         
  564:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  565:         """gets authorization info from the index.meta file at path or given by dom"""
  566:         logging.debug("documentViewer (getauthinfofromindexmeta) path: %s"%(path))
  567:         
  568:         access = None
  569:         
  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:         acctype = dom.xpath("//access-conditions/access/@type")
  579:         if acctype and (len(acctype)>0):
  580:             access=acctype[0].value
  581:             if access in ['group', 'institution']:
  582:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  583:             
  584:         docinfo['accessType'] = access
  585:         return docinfo
  586:     
  587:         
  588:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  589:         """gets bibliographical info from the index.meta file at path or given by dom"""
  590:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  591:         
  592:         if docinfo is None:
  593:             docinfo = {}
  594:         
  595:         if dom is None:
  596:             for x in range(cut):
  597:                 path=getParentDir(path)
  598:             dom = self.getDomFromIndexMeta(path)
  599:         
  600:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  601:         
  602:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  603:         # put in all raw bib fields as dict "bib"
  604:         bib = dom.xpath("//bib/*")
  605:         if bib and len(bib)>0:
  606:             bibinfo = {}
  607:             for e in bib:
  608:                 bibinfo[e.localName] = getTextFromNode(e)
  609:             docinfo['bib'] = bibinfo
  610:         
  611:         # extract some fields (author, title, year) according to their mapping
  612:         metaData=self.metadata.main.meta.bib
  613:         bibtype=dom.xpath("//bib/@type")
  614:         if bibtype and (len(bibtype)>0):
  615:             bibtype=bibtype[0].value
  616:         else:
  617:             bibtype="generic"
  618:             
  619:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  620:         docinfo['bib_type'] = bibtype
  621:         bibmap=metaData.generateMappingForType(bibtype)
  622:         logging.debug("documentViewer (getbibinfofromindexmeta) bibmap:"+repr(bibmap))
  623:         logging.debug("documentViewer (getbibinfofromindexmeta) bibtype:"+repr(bibtype))
  624:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  625:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  626:             try:
  627:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  628:             except: pass
  629:             try:
  630:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  631:             except: pass
  632:             try:
  633:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  634:             except: pass
  635:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  636:             try:
  637:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  638:             except:
  639:                 docinfo['lang']=''
  640:             try:
  641:                 docinfo['city']=getTextFromNode(dom.xpath("//bib/city")[0])
  642:             except:
  643:                 docinfo['city']=''
  644:             try:
  645:                 docinfo['number_of_pages']=getTextFromNode(dom.xpath("//bib/number_of_pages")[0])
  646:             except:
  647:                 docinfo['number_of_pages']=''
  648:             try:
  649:                 docinfo['series_volume']=getTextFromNode(dom.xpath("//bib/series_volume")[0])
  650:             except:
  651:                 docinfo['series_volume']=''
  652:             try:
  653:                 docinfo['number_of_volumes']=getTextFromNode(dom.xpath("//bib/number_of_volumes")[0])
  654:             except:
  655:                 docinfo['number_of_volumes']=''
  656:             try:
  657:                 docinfo['translator']=getTextFromNode(dom.xpath("//bib/translator")[0])
  658:             except:
  659:                 docinfo['translator']=''
  660:             try:
  661:                 docinfo['edition']=getTextFromNode(dom.xpath("//bib/edition")[0])
  662:             except:
  663:                 docinfo['edition']=''
  664:             try:
  665:                 docinfo['series_author']=getTextFromNode(dom.xpath("//bib/series_author")[0])
  666:             except:
  667:                 docinfo['series_author']=''
  668:             try:
  669:                 docinfo['publisher']=getTextFromNode(dom.xpath("//bib/publisher")[0])
  670:             except:
  671:                 docinfo['publisher']=''
  672:             try:
  673:                 docinfo['series_title']=getTextFromNode(dom.xpath("//bib/series_title")[0])
  674:             except:
  675:                 docinfo['series_title']=''
  676:             try:
  677:                 docinfo['isbn_issn']=getTextFromNode(dom.xpath("//bib/isbn_issn")[0])
  678:             except:
  679:                 docinfo['isbn_issn']=''           
  680:         return docinfo
  681:     
  682:      
  683:     def getNameFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  684:         """gets name info from the index.meta file at path or given by dom"""
  685:         if docinfo is None:
  686:             docinfo = {}
  687:         
  688:         if dom is None:
  689:             for x in range(cut):
  690:                 path=getParentDir(path)
  691:             dom = self.getDomFromIndexMeta(path)
  692: 
  693:         docinfo['name']=getTextFromNode(dom.xpath("/resource/name")[0])
  694:         logging.debug("documentViewer docinfo[name] %s"%docinfo['name'])
  695:         return docinfo
  696:     
  697:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  698:         """parse texttool tag in index meta"""
  699:         logging.debug("documentViewer (getdocinfofromtexttool) url: %s" % (url))
  700:         if docinfo is None:
  701:            docinfo = {}
  702:         if docinfo.get('lang', None) is None:
  703:             docinfo['lang'] = '' # default keine Sprache gesetzt
  704:         if dom is None:
  705:             dom = self.getDomFromIndexMeta(url)
  706:         
  707:         archivePath = None
  708:         archiveName = None
  709:     
  710:         archiveNames = dom.xpath("//resource/name")
  711:         if archiveNames and (len(archiveNames) > 0):
  712:             archiveName = getTextFromNode(archiveNames[0])
  713:         else:
  714:             logging.warning("documentViewer (getdocinfofromtexttool) resource/name missing in: %s" % (url))
  715:         
  716:         archivePaths = dom.xpath("//resource/archive-path")
  717:         if archivePaths and (len(archivePaths) > 0):
  718:             archivePath = getTextFromNode(archivePaths[0])
  719:             # clean up archive path
  720:             if archivePath[0] != '/':
  721:                 archivePath = '/' + archivePath
  722:             if archiveName and (not archivePath.endswith(archiveName)):
  723:                 archivePath += "/" + archiveName
  724:         else:
  725:             # try to get archive-path from url
  726:             logging.warning("documentViewer (getdocinfofromtexttool) resource/archive-path missing in: %s" % (url))
  727:             if (not url.startswith('http')):
  728:                 archivePath = url.replace('index.meta', '')
  729:                 
  730:         if archivePath is None:
  731:             # we balk without archive-path
  732:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  733:         
  734:         imageDirs = dom.xpath("//texttool/image")
  735:         if imageDirs and (len(imageDirs) > 0):
  736:             imageDir = getTextFromNode(imageDirs[0])
  737:             
  738:         else:
  739:             # we balk with no image tag / not necessary anymore because textmode is now standard
  740:             #raise IOError("No text-tool info in %s"%(url))
  741:             imageDir = ""
  742:             #xquery="//pb"  
  743:             docinfo['imagePath'] = "" # keine Bilder
  744:             docinfo['imageURL'] = ""
  745:             
  746:         if imageDir and archivePath:
  747:             #print "image: ", imageDir, " archivepath: ", archivePath
  748:             imageDir = os.path.join(archivePath, imageDir)
  749:             imageDir = imageDir.replace("/mpiwg/online", '')
  750:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  751:             docinfo['imagePath'] = imageDir
  752:             
  753:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  754:             
  755:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  756:         if viewerUrls and (len(viewerUrls) > 0):
  757:             viewerUrl = getTextFromNode(viewerUrls[0])
  758:             docinfo['viewerURL'] = viewerUrl
  759:         
  760:         # old style text URL
  761:         textUrls = dom.xpath("//texttool/text")
  762:         if textUrls and (len(textUrls) > 0):
  763:             textUrl = getTextFromNode(textUrls[0])
  764:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  765:                 textUrl = os.path.join(archivePath, textUrl) 
  766:             # fix URLs starting with /mpiwg/online
  767:             if textUrl.startswith("/mpiwg/online"):
  768:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  769:             
  770:             docinfo['textURL'] = textUrl
  771:     
  772:         # new style text-url-path
  773:         textUrls = dom.xpath("//texttool/text-url-path")
  774:         if textUrls and (len(textUrls) > 0):
  775:             textUrl = getTextFromNode(textUrls[0])
  776:             docinfo['textURLPath'] = textUrl
  777:             textUrlkurz = string.split(textUrl, ".")[0]
  778:             docinfo['textURLPathkurz'] = textUrlkurz
  779:             #if not docinfo['imagePath']:
  780:                 # text-only, no page images
  781:                 #docinfo = self.getNumTextPages(docinfo)
  782:                   
  783:          
  784:         presentationUrls = dom.xpath("//texttool/presentation")
  785:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  786:         docinfo = self.getNameFromIndexMeta(url, docinfo=docinfo, dom=dom)
  787:         
  788:         
  789:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  790:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  791:              # durch den relativen Pfad auf die presentation infos
  792:             presentationPath = getTextFromNode(presentationUrls[0])
  793:             if url.endswith("index.meta"): 
  794:                 presentationUrl = url.replace('index.meta', presentationPath)
  795:             else:
  796:                 presentationUrl = url + "/" + presentationPath
  797:                 
  798:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  799:     
  800:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  801:         
  802:         return docinfo
  803:    
  804:    
  805:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  806:         """gets the bibliographical information from the preseantion entry in texttools
  807:         """
  808:         dom=self.getPresentationInfoXML(url)
  809:         try:
  810:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  811:         except:
  812:             pass
  813:         try:
  814:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  815:         except:
  816:             pass
  817:         try:
  818:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  819:         except:
  820:             pass
  821:         return docinfo
  822:     
  823:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  824:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  825:         logging.debug("documentViewer (getdocinfofromimagepath) path: %s"%(path))
  826:         if docinfo is None:
  827:             docinfo = {}
  828:         path=path.replace("/mpiwg/online","")
  829:         docinfo['imagePath'] = path
  830:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  831:         
  832:         pathorig=path
  833:         for x in range(cut):       
  834:                 path=getParentDir(path)
  835:         logging.debug("documentViewer (getdocinfofromimagepath) PATH:"+path)
  836:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  837:         docinfo['imageURL'] = imageUrl
  838:         
  839:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  840:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  841:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  842:         return docinfo
  843:     
  844:     
  845:     def getDocinfo(self, mode, url):
  846:         """returns docinfo depending on mode"""
  847:         logging.debug("documentViewer (getdocinfo) mode: %s, url: %s"%(mode,url))
  848:         # look for cached docinfo in session
  849:         if self.REQUEST.SESSION.has_key('docinfo'):
  850:             docinfo = self.REQUEST.SESSION['docinfo']
  851:             # check if its still current
  852:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  853:                 logging.debug("documentViewer (getdocinfo) docinfo in session: %s"%docinfo)
  854:                 return docinfo
  855:         # new docinfo
  856:         docinfo = {'mode': mode, 'url': url}
  857:         if mode=="texttool": #index.meta with texttool information
  858:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  859:         elif mode=="imagepath":
  860:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  861:         elif mode=="filepath":
  862:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  863:         else:
  864:             logging.error("documentViewer (getdocinfo) unknown mode: %s!"%mode)
  865:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  866:                 
  867:         # FIXME: fake texturlpath 
  868:         if not docinfo.has_key('textURLPath'):
  869:             docinfo['textURLPath'] = None
  870:         
  871:         logging.debug("documentViewer (getdocinfo) docinfo: %s"%docinfo)
  872:         #logging.debug("documentViewer (getdocinfo) docinfo: %s"%)
  873:         self.REQUEST.SESSION['docinfo'] = docinfo
  874:         return docinfo
  875:                
  876:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None):
  877:         """returns pageinfo with the given parameters"""
  878:         pageinfo = {}
  879:         current = getInt(current)
  880:     
  881:         pageinfo['current'] = current
  882:         rows = int(rows or self.thumbrows)
  883:         pageinfo['rows'] = rows
  884:         cols = int(cols or self.thumbcols)
  885:         pageinfo['cols'] = cols
  886:         grpsize = cols * rows
  887:         pageinfo['groupsize'] = grpsize
  888:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  889:         # int(current / grpsize) * grpsize +1))
  890:         pageinfo['start'] = start
  891:         pageinfo['end'] = start + grpsize
  892:         if (docinfo is not None) and ('numPages' in docinfo):
  893:             np = int(docinfo['numPages'])
  894:             pageinfo['end'] = min(pageinfo['end'], np)
  895:             pageinfo['numgroups'] = int(np / grpsize)
  896:             if np % grpsize > 0:
  897:                 pageinfo['numgroups'] += 1        
  898:         pageinfo['viewMode'] = viewMode
  899:         pageinfo['tocMode'] = tocMode
  900:         pageinfo['characterNormalization'] = self.REQUEST.get('characterNormalization','reg')
  901:         pageinfo['optionToggle'] = self.REQUEST.get('optionToggle','1')
  902:         pageinfo['query'] = self.REQUEST.get('query','') 
  903:         pageinfo['queryType'] = self.REQUEST.get('queryType','')
  904:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  905:         pageinfo['textPN'] = self.REQUEST.get('textPN','1')
  906:         pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
  907:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  908:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
  909:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')     
  910:         toc = int (pageinfo['tocPN'])
  911:         pageinfo['textPages'] =int (toc)
  912:         
  913:         if 'tocSize_%s'%tocMode in docinfo:
  914:             tocSize = int(docinfo['tocSize_%s'%tocMode])
  915:             tocPageSize = int(pageinfo['tocPageSize'])
  916:             # cached toc           
  917:             if tocSize%tocPageSize>0:
  918:                 tocPages=tocSize/tocPageSize+1
  919:             else:
  920:                 tocPages=tocSize/tocPageSize
  921:             pageinfo['tocPN'] = min (tocPages,toc)                    
  922:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  923:         pageinfo['sn'] =self.REQUEST.get('sn','')
  924:         return pageinfo
  925:     
  926: def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  927:         """init document viewer"""
  928:         self.title=title
  929:         self.digilibBaseUrl = digilibBaseUrl
  930:         self.thumbrows = thumbrows
  931:         self.thumbcols = thumbcols
  932:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  933:         if RESPONSE is not None:
  934:             RESPONSE.redirect('manage_main')
  935:         
  936: def manage_AddDocumentViewerForm(self):
  937:     """add the viewer form"""
  938:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  939:     return pt()
  940:   
  941: def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
  942:     """add the viewer"""
  943:     newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
  944:     self._setObject(id,newObj)
  945:     
  946:     if RESPONSE is not None:
  947:         RESPONSE.redirect('manage_main')
  948: 
  949: ## DocumentViewerTemplate class
  950: class DocumentViewerTemplate(ZopePageTemplate):
  951:     """Template for document viewer"""
  952:     meta_type="DocumentViewer Template"
  953: 
  954: 
  955: def manage_addDocumentViewerTemplateForm(self):
  956:     """Form for adding"""
  957:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  958:     return pt()
  959: 
  960: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  961:                            REQUEST=None, submit=None):
  962:     "Add a Page Template with optional file content."
  963: 
  964:     self._setObject(id, DocumentViewerTemplate(id))
  965:     ob = getattr(self, id)
  966:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  967:     logging.info("txt %s:"%txt)
  968:     ob.pt_edit(txt,"text/html")
  969:     if title:
  970:         ob.pt_setTitle(title)
  971:     try:
  972:         u = self.DestinationURL()
  973:     except AttributeError:
  974:         u = REQUEST['URL1']
  975:         
  976:     u = "%s/%s" % (u, urllib.quote(id))
  977:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  978:     return ''
  979: 
  980: 
  981:     

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