File:  [Repository] / documentViewer / documentViewer.py
Revision 1.111: download - view: text, annotated - select for diffs - revision graph
Fri Oct 8 13:34:50 2010 UTC (13 years, 8 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: 
    9: from Ft.Xml import EMPTY_NAMESPACE, Parse
   10: import Ft.Xml.Domlette
   11: import os.path
   12: import sys
   13: import urllib
   14: import urllib2
   15: import logging
   16: import math
   17: import urlparse 
   18: import cStringIO
   19: import re
   20: 
   21: def logger(txt,method,txt2):
   22:     """logging"""
   23:     logging.info(txt+ txt2)
   24:     
   25:     
   26: def getInt(number, default=0):
   27:     """returns always an int (0 in case of problems)"""
   28:     try:
   29:         return int(number)
   30:     except:
   31:         return int(default)
   32: 
   33: def getTextFromNode(nodename):
   34:     """get the cdata content of a node"""
   35:     if nodename is None:
   36:         return ""
   37:     nodelist=nodename.childNodes
   38:     rc = ""
   39:     for node in nodelist:
   40:         if node.nodeType == node.TEXT_NODE:
   41:            rc = rc + node.data
   42:     return rc
   43: 
   44: def serializeNode(node, encoding='utf-8'):
   45:     """returns a string containing node as XML"""
   46:     buf = cStringIO.StringIO()
   47:     Ft.Xml.Domlette.Print(node, stream=buf, encoding=encoding)
   48:     s = buf.getvalue()
   49:     buf.close()
   50:     return s
   51: 
   52:         
   53: def getParentDir(path):
   54:     """returns pathname shortened by one"""
   55:     return '/'.join(path.split('/')[0:-1])
   56:         
   57: 
   58: def getHttpData(url, data=None, num_tries=3, timeout=10):
   59:     """returns result from url+data HTTP request"""
   60:     # we do GET (by appending data to url)
   61:     if isinstance(data, str) or isinstance(data, unicode):
   62:         # if data is string then append
   63:         url = "%s?%s"%(url,data)
   64:     elif isinstance(data, dict) or isinstance(data, list) or isinstance(data, tuple):
   65:         # urlencode
   66:         url = "%s?%s"%(url,urllib.urlencode(data))
   67:     
   68:     response = None
   69:     errmsg = None
   70:     for cnt in range(num_tries):
   71:         try:
   72:             logging.debug("getHttpData(#%s %ss) url=%s"%(cnt+1,timeout,url))
   73:             if sys.version_info < (2, 6):
   74:                 # set timeout on socket -- ugly :-(
   75:                 import socket
   76:                 socket.setdefaulttimeout(float(timeout))
   77:                 response = urllib2.urlopen(url)
   78:             else:
   79:                 response = urllib2.urlopen(url,timeout=float(timeout))
   80:             # check result?
   81:             break
   82:         except urllib2.HTTPError, e:
   83:             logging.error("getHttpData: HTTP error(%s): %s"%(e.code,e))
   84:             errmsg = str(e)
   85:             # stop trying
   86:             break
   87:         except urllib2.URLError, e:
   88:             logging.error("getHttpData: URLLIB error(%s): %s"%(e.reason,e))
   89:             errmsg = str(e)
   90:             # stop trying
   91:             #break
   92: 
   93:     if response is not None:
   94:         data = response.read()
   95:         response.close()
   96:         return data
   97:     
   98:     raise IOError("ERROR fetching HTTP data from %s: %s"%(url,errmsg))
   99:     #return None
  100: 
  101: 
  102: 
  103: ##
  104: ## documentViewer class
  105: ##
  106: class documentViewer(Folder):
  107:     """document viewer"""
  108:     meta_type="Document viewer"
  109:     
  110:     security=ClassSecurityInfo()
  111:     manage_options=Folder.manage_options+(
  112:         {'label':'main config','action':'changeDocumentViewerForm'},
  113:         )
  114: 
  115:     # templates and forms
  116:     viewer_main = PageTemplateFile('zpt/viewer_main', globals())
  117:     toc_thumbs = PageTemplateFile('zpt/toc_thumbs', globals())
  118:     toc_text = PageTemplateFile('zpt/toc_text', globals())
  119:     toc_figures = PageTemplateFile('zpt/toc_figures', globals())
  120:     page_main_images = PageTemplateFile('zpt/page_main_images', globals())
  121:     page_main_text = PageTemplateFile('zpt/page_main_text', globals())
  122:     page_main_text_dict = PageTemplateFile('zpt/page_main_text_dict', globals())
  123:     page_main_gis =PageTemplateFile ('zpt/page_main_gis', globals())
  124:     page_main_xml = PageTemplateFile('zpt/page_main_xml', globals())
  125:     head_main = PageTemplateFile('zpt/head_main', globals())
  126:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
  127:     info_xml = PageTemplateFile('zpt/info_xml', globals())
  128:     
  129:     
  130:     thumbs_main_rss = PageTemplateFile('zpt/thumbs_main_rss', globals())
  131:     security.declareProtected('View management screens','changeDocumentViewerForm')    
  132:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
  133: 
  134:     
  135:     def __init__(self,id,imageScalerUrl=None,textServerName=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=5,authgroups="mpiwg"):
  136:         """init document viewer"""
  137:         self.id=id
  138:         self.title=title
  139:         self.thumbcols = thumbcols
  140:         self.thumbrows = thumbrows
  141:         # authgroups is list of authorized groups (delimited by ,)
  142:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  143:         # create template folder so we can always use template.something
  144:         
  145:         templateFolder = Folder('template')
  146:         #self['template'] = templateFolder # Zope-2.12 style
  147:         self._setObject('template',templateFolder) # old style
  148:         try:
  149:             import MpdlXmlTextServer
  150:             textServer = MpdlXmlTextServer.MpdlXmlTextServer(id='fulltextclient',serverName=textServerName)
  151:             #templateFolder['fulltextclient'] = xmlRpcClient
  152:             templateFolder._setObject('fulltextclient',textServer)
  153:         except Exception, e:
  154:             logging.error("Unable to create MpdlXmlTextServer for fulltextclient: "+str(e))
  155:         try:
  156:             from Products.zogiLib.zogiLib import zogiLib
  157:             zogilib = zogiLib(id="zogilib", title="zogilib for docuviewer", dlServerURL=imageScalerUrl, layout="book")
  158:             #templateFolder['zogilib'] = zogilib
  159:             templateFolder._setObject('zogilib',zogilib)
  160:         except Exception, e:
  161:             logging.error("Unable to create zogiLib for zogilib: "+str(e))
  162:         
  163:         
  164:     # proxy text server methods to fulltextclient
  165:     def getTextPage(self, **args):
  166:         """get page"""
  167:         return self.template.fulltextclient.getTextPage(**args)
  168: 
  169:     def getQuery(self, **args):
  170:         """get query"""
  171:         return self.template.fulltextclient.getQuery(**args)
  172: 
  173:     def getSearch(self, **args):
  174:         """get search"""
  175:         return self.template.fulltextclient.getSearch(**args)
  176: 
  177:     def getNumPages(self, docinfo):
  178:         """get numpages"""
  179:         return self.template.fulltextclient.getNumPages(docinfo)
  180:    
  181:     def getNumTextPages(self, docinfo):
  182:         """get numpages text"""
  183:         return self.template.fulltextclient.getNumTextPages(docinfo)
  184:    
  185:     def getTranslate(self, **args):
  186:         """get translate"""
  187:         return self.template.fulltextclient.getTranslate(**args)
  188: 
  189:     def getLemma(self, **args):
  190:         """get lemma"""
  191:         return self.template.fulltextclient.getLemma(**args)
  192: 
  193:     def getToc(self, **args):
  194:         """get toc"""
  195:         return self.template.fulltextclient.getToc(**args)
  196: 
  197:     def getTocPage(self, **args):
  198:         """get tocpage"""
  199:         return self.template.fulltextclient.getTocPage(**args)
  200: 
  201:     
  202:     security.declareProtected('View','thumbs_rss')
  203:     def thumbs_rss(self,mode,url,viewMode="auto",start=None,pn=1):
  204:         '''
  205:         view it
  206:         @param mode: defines how to access the document behind url 
  207:         @param url: url which contains display information
  208:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  209:         
  210:         '''
  211:         logging.debug("HHHHHHHHHHHHHH:load the rss")
  212:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  213:         
  214:         if not hasattr(self, 'template'):
  215:             # create template folder if it doesn't exist
  216:             self.manage_addFolder('template')
  217:             
  218:         if not self.digilibBaseUrl:
  219:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  220:             
  221:         docinfo = self.getDocinfo(mode=mode,url=url)
  222:         pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  223:         pt = getattr(self.template, 'thumbs_main_rss')
  224:         
  225:         if viewMode=="auto": # automodus gewaehlt
  226:             if docinfo.has_key("textURL") or docinfo.has_key('textURLPath'): #texturl gesetzt und textViewer konfiguriert
  227:                 viewMode="text"
  228:             else:
  229:                 viewMode="images"
  230:                
  231:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  232:   
  233:     security.declareProtected('View','index_html')
  234:     def index_html(self,url,mode="texttool",viewMode="auto",tocMode="thumbs",start=None,pn=1,mk=None, query=None, querySearch=None, characterNormalization=""):
  235:         '''
  236:         view it
  237:         @param mode: defines how to access the document behind url 
  238:         @param url: url which contains display information
  239:         @param viewMode: if images display images, if text display text, default is auto (text,images or auto)
  240:         @param tocMode: type of 'table of contents' for navigation (thumbs, text, figures, none)
  241:         @param characterNormalization type of text display (reg, norm, none)
  242:         @param querySearch: type of different search modes (fulltext, fulltextMorph, xpath, xquery, ftIndex, ftIndexMorph, fulltextMorphLemma)
  243:         '''
  244:         
  245:         logging.debug("documentViewer (index) mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  246:         
  247:         if not hasattr(self, 'template'):
  248:             # this won't work
  249:             logging.error("template folder missing!")
  250:             return "ERROR: template folder missing!"
  251:             
  252:         if not getattr(self, 'digilibBaseUrl', None):
  253:             self.digilibBaseUrl = self.findDigilibUrl() or "http://digilib.mpiwg-berlin.mpg.de/digitallibrary"
  254:             
  255:         docinfo = self.getDocinfo(mode=mode,url=url)
  256:         
  257:         if tocMode != "thumbs":
  258:             # get table of contents
  259:             docinfo = self.getToc(mode=tocMode, docinfo=docinfo)
  260:             
  261:         if viewMode=="auto": # automodus gewaehlt
  262:             if docinfo.has_key('textURL') or docinfo.has_key('textURLPath'): #texturl gesetzt und textViewer konfiguriert
  263:                 viewMode="text_dict"
  264:             else:
  265:                 viewMode="images"
  266:                 
  267:         pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo,viewMode=viewMode,tocMode=tocMode)
  268:         
  269:         pt = getattr(self.template, 'viewer_main')               
  270:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode,mk=self.generateMarks(mk))
  271:   
  272:     def generateMarks(self,mk):
  273:         ret=""
  274:         if mk is None:
  275:             return ""
  276:         if not isinstance(mk, list):
  277:             mk=[mk]
  278:         for m in mk:
  279:             ret+="mk=%s"%m
  280:         return ret
  281: 
  282: 
  283:     def findDigilibUrl(self):
  284:         """try to get the digilib URL from zogilib"""
  285:         url = self.template.zogilib.getDLBaseUrl()
  286:         return url
  287: 
  288:     def getDocumentViewerURL(self):
  289:         """returns the URL of this instance"""
  290:         return self.absolute_url()
  291:     
  292:     def getStyle(self, idx, selected, style=""):
  293:         """returns a string with the given style and append 'sel' if path == selected."""
  294:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  295:         if idx == selected:
  296:             return style + 'sel'
  297:         else:
  298:             return style
  299:     
  300:     def getLink(self,param=None,val=None):
  301:         """link to documentviewer with parameter param set to val"""
  302:         params=self.REQUEST.form.copy()
  303:         if param is not None:
  304:             if val is None:
  305:                 if params.has_key(param):
  306:                     del params[param]
  307:             else:
  308:                 params[param] = str(val)
  309:                 
  310:         if params.get("mode", None) == "filepath": #wenn beim erst Aufruf filepath gesetzt wurde aendere das nun zu imagepath
  311:                 params["mode"] = "imagepath"
  312:                 params["url"] = getParentDir(params["url"])
  313:                 
  314:         # quote values and assemble into query string
  315:         #ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  316:         ps = urllib.urlencode(params)
  317:         url=self.REQUEST['URL1']+"?"+ps
  318:         return url
  319: 
  320:     def getLinkAmp(self,param=None,val=None):
  321:         """link to documentviewer with parameter param set to val"""
  322:         params=self.REQUEST.form.copy()
  323:         if param is not None:
  324:             if val is None:
  325:                 if params.has_key(param):
  326:                     del params[param]
  327:             else:
  328:                 params[param] = str(val)
  329:                 
  330:         # quote values and assemble into query string
  331:         logging.debug("XYXXXXX: %s"%repr(params.items()))
  332:         ps = "&amp;".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  333:         url=self.REQUEST['URL1']+"?"+ps
  334:         return url
  335:     
  336:     def getInfo_xml(self,url,mode):
  337:         """returns info about the document as XML"""
  338: 
  339:         if not self.digilibBaseUrl:
  340:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  341:         
  342:         docinfo = self.getDocinfo(mode=mode,url=url)
  343:         pt = getattr(self.template, 'info_xml')
  344:         return pt(docinfo=docinfo)
  345: 
  346:     
  347:     def isAccessible(self, docinfo):
  348:         """returns if access to the resource is granted"""
  349:         access = docinfo.get('accessType', None)
  350:         logging.debug("documentViewer (accessOK) access type %s"%access)
  351:         if access is not None and access == 'free':
  352:             logging.debug("documentViewer (accessOK) access is free")
  353:             return True
  354:         elif access is None or access in self.authgroups:
  355:             # only local access -- only logged in users
  356:             user = getSecurityManager().getUser()
  357:             logging.debug("documentViewer (accessOK) user=%s ip=%s"%(user,self.REQUEST.getClientAddr()))
  358:             if user is not None:
  359:                 #print "user: ", user
  360:                 return (user.getUserName() != "Anonymous User")
  361:             else:
  362:                 return False
  363:         
  364:         logging.error("documentViewer (accessOK) unknown access type %s"%access)
  365:         return False
  366:     
  367:                 
  368:     def getDirinfoFromDigilib(self,path,docinfo=None,cut=0):
  369:         """gibt param von dlInfo aus"""
  370:         if docinfo is None:
  371:             docinfo = {}
  372:         
  373:         for x in range(cut):
  374:                
  375:                 path=getParentDir(path)
  376:        
  377:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  378:     
  379:         logging.debug("documentViewer (getparamfromdigilib) dirInfo from %s"%(infoUrl))
  380:         
  381:         txt = getHttpData(infoUrl)
  382:         if txt is None:
  383:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  384: 
  385:         dom = Parse(txt)
  386:         sizes=dom.xpath("//dir/size")
  387:         logging.debug("documentViewer (getparamfromdigilib) dirInfo:size"%sizes)
  388:         
  389:         if sizes:
  390:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  391:         else:
  392:             docinfo['numPages'] = 0
  393:             
  394:         # TODO: produce and keep list of image names and numbers
  395:                         
  396:         return docinfo
  397:     
  398:     def getIndexMetaPath(self,url):
  399:         """gib nur den Pfad zurueck"""
  400:         regexp = re.compile(r".*(experimental|permanent)/(.*)")
  401:         regpath = regexp.match(url)
  402:         if (regpath==None):
  403:             return ""
  404:         logging.debug("(getDomFromIndexMeta): URLXAXA: %s"%regpath.group(2))            
  405:         return ("/mpiwg/online/"+regpath.group(1)+"/"+regpath.group(2))
  406:      
  407:     def getIndexMetaName(self,url):
  408:         """gib nur den Pfad zurueck"""
  409:         #regexp = re.compile(r".*(experimental|permanent)/(.*)")
  410:         regpath = regexp.match(url)
  411:         if (regpath==None):
  412:             return ""
  413:         logging.debug("(getIndexMetaName): XAXA: %s"%regpath.group(2))            
  414:         return regpath
  415:     
  416:     
  417:     def getIndexMetaUrl(self,url):
  418:         """returns utr  of index.meta document at url"""
  419:       
  420:         metaUrl = None
  421:         if url.startswith("http://"):
  422:             # real URL
  423:             metaUrl = url
  424:         else:
  425:             # online path
  426:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  427:             metaUrl=server+url.replace("/mpiwg/online","")
  428:             if not metaUrl.endswith("index.meta"):
  429:                 metaUrl += "/index.meta"
  430:         
  431:         return metaUrl
  432:     
  433:     def getDomFromIndexMeta(self, url):
  434:         """get dom from index meta"""
  435:         dom = None
  436:         metaUrl = self.getIndexMetaUrl(url)
  437:                 
  438:         logging.debug("(getDomFromIndexMeta): METAURL: %s"%metaUrl)
  439:         txt=getHttpData(metaUrl)
  440:         if txt is None:
  441:             raise IOError("Unable to read index meta from %s"%(url))
  442:         
  443:         dom = Parse(txt)
  444:         return dom
  445:     
  446:     def getPresentationInfoXML(self, url):
  447:         """returns dom of info.xml document at url"""
  448:         dom = None
  449:         metaUrl = None
  450:         if url.startswith("http://"):
  451:             # real URL
  452:             metaUrl = url
  453:         else:
  454:             # online path
  455:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  456:             metaUrl=server+url.replace("/mpiwg/online","")
  457:         
  458:         txt=getHttpData(metaUrl)
  459:         if txt is None:
  460:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  461:             
  462:         dom = Parse(txt)
  463:         return dom
  464:                         
  465:         
  466:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  467:         """gets authorization info from the index.meta file at path or given by dom"""
  468:         logging.debug("documentViewer (getauthinfofromindexmeta) path: %s"%(path))
  469:         
  470:         access = None
  471:         
  472:         if docinfo is None:
  473:             docinfo = {}
  474:             
  475:         if dom is None:
  476:             for x in range(cut):
  477:                 path=getParentDir(path)
  478:             dom = self.getDomFromIndexMeta(path)
  479:        
  480:         acctype = dom.xpath("//access-conditions/access/@type")
  481:         if acctype and (len(acctype)>0):
  482:             access=acctype[0].value
  483:             if access in ['group', 'institution']:
  484:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  485:             
  486:         docinfo['accessType'] = access
  487:         return docinfo
  488:     
  489:         
  490:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  491:         """gets bibliographical info from the index.meta file at path or given by dom"""
  492:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  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:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  503:         
  504:         logging.debug("documentViewer (getbibinfofromindexmeta cutted) path: %s"%(path))
  505:         # put in all raw bib fields as dict "bib"
  506:         bib = dom.xpath("//bib/*")
  507:         if bib and len(bib)>0:
  508:             bibinfo = {}
  509:             for e in bib:
  510:                 bibinfo[e.localName] = getTextFromNode(e)
  511:             docinfo['bib'] = bibinfo
  512:         
  513:         # extract some fields (author, title, year) according to their mapping
  514:         metaData=self.metadata.main.meta.bib
  515:         bibtype=dom.xpath("//bib/@type")
  516:         if bibtype and (len(bibtype)>0):
  517:             bibtype=bibtype[0].value
  518:         else:
  519:             bibtype="generic"
  520:             
  521:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  522:         docinfo['bib_type'] = bibtype
  523:         bibmap=metaData.generateMappingForType(bibtype)
  524:         logging.debug("documentViewer (getbibinfofromindexmeta) bibmap:"+repr(bibmap))
  525:         logging.debug("documentViewer (getbibinfofromindexmeta) bibtype:"+repr(bibtype))
  526:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  527:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  528:             try:
  529:                 docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  530:             except: pass
  531:             try:
  532:                 docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  533:             except: pass
  534:             try:
  535:                 docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  536:             except: pass
  537:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  538:             try:
  539:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  540:             except:
  541:                 docinfo['lang']=''
  542: 
  543:         return docinfo
  544:     
  545:      
  546:     def getNameFromIndexMeta(self,path,docinfo=None,dom=None,cut=0):
  547:         """gets name info from the index.meta file at path or given by dom"""
  548:         if docinfo is None:
  549:             docinfo = {}
  550:         
  551:         if dom is None:
  552:             for x in range(cut):
  553:                 path=getParentDir(path)
  554:             dom = self.getDomFromIndexMeta(path)
  555:         
  556:         docinfo['indexMetaPath']=self.getIndexMetaPath(path);
  557:         
  558:         #result= dom.xpath("//result/resultPage")
  559:         #docinfo['numPages']=int(getTextFromNode(result[0]))
  560:         
  561:         if len(name) > 0:
  562:             try:
  563:                 result =dom.xpath("//name")
  564:                 docinfo['name']=getTextFromNode(result[0])
  565:                 logging.debug("documentViewer docinfo[name] %s"%docinfo[name])
  566:             except: pass  
  567:                 #logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  568:         return docinfo
  569:     
  570:     def getDocinfoFromTextTool(self, url, dom=None, docinfo=None):
  571:         """parse texttool tag in index meta"""
  572:         logging.debug("documentViewer (getdocinfofromtexttool) url: %s" % (url))
  573:         if docinfo is None:
  574:            docinfo = {}
  575:         if docinfo.get('lang', None) is None:
  576:             docinfo['lang'] = '' # default keine Sprache gesetzt
  577:         if dom is None:
  578:             dom = self.getDomFromIndexMeta(url)
  579:         
  580:         archivePath = None
  581:         archiveName = None
  582:     
  583:         archiveNames = dom.xpath("//resource/name")
  584:         if archiveNames and (len(archiveNames) > 0):
  585:             archiveName = getTextFromNode(archiveNames[0])
  586:         else:
  587:             logging.warning("documentViewer (getdocinfofromtexttool) resource/name missing in: %s" % (url))
  588:         
  589:         archivePaths = dom.xpath("//resource/archive-path")
  590:         if archivePaths and (len(archivePaths) > 0):
  591:             archivePath = getTextFromNode(archivePaths[0])
  592:             # clean up archive path
  593:             if archivePath[0] != '/':
  594:                 archivePath = '/' + archivePath
  595:             if archiveName and (not archivePath.endswith(archiveName)):
  596:                 archivePath += "/" + archiveName
  597:         else:
  598:             # try to get archive-path from url
  599:             logging.warning("documentViewer (getdocinfofromtexttool) resource/archive-path missing in: %s" % (url))
  600:             if (not url.startswith('http')):
  601:                 archivePath = url.replace('index.meta', '')
  602:                 
  603:         if archivePath is None:
  604:             # we balk without archive-path
  605:             raise IOError("Missing archive-path (for text-tool) in %s" % (url))
  606:         
  607:         imageDirs = dom.xpath("//texttool/image")
  608:         if imageDirs and (len(imageDirs) > 0):
  609:             imageDir = getTextFromNode(imageDirs[0])
  610:             
  611:         else:
  612:             # we balk with no image tag / not necessary anymore because textmode is now standard
  613:             #raise IOError("No text-tool info in %s"%(url))
  614:             imageDir = ""
  615:             #xquery="//pb"  
  616:             docinfo['imagePath'] = "" # keine Bilder
  617:             docinfo['imageURL'] = ""
  618:             
  619:         if imageDir and archivePath:
  620:             #print "image: ", imageDir, " archivepath: ", archivePath
  621:             imageDir = os.path.join(archivePath, imageDir)
  622:             imageDir = imageDir.replace("/mpiwg/online", '')
  623:             docinfo = self.getDirinfoFromDigilib(imageDir, docinfo=docinfo)
  624:             docinfo['imagePath'] = imageDir
  625:             
  626:             docinfo['imageURL'] = self.digilibBaseUrl + "/servlet/Scaler?fn=" + imageDir
  627:             
  628:         viewerUrls = dom.xpath("//texttool/digiliburlprefix")
  629:         if viewerUrls and (len(viewerUrls) > 0):
  630:             viewerUrl = getTextFromNode(viewerUrls[0])
  631:             docinfo['viewerURL'] = viewerUrl
  632:         
  633:         # old style text URL
  634:         textUrls = dom.xpath("//texttool/text")
  635:         if textUrls and (len(textUrls) > 0):
  636:             textUrl = getTextFromNode(textUrls[0])
  637:             if urlparse.urlparse(textUrl)[0] == "": #keine url
  638:                 textUrl = os.path.join(archivePath, textUrl) 
  639:             # fix URLs starting with /mpiwg/online
  640:             if textUrl.startswith("/mpiwg/online"):
  641:                 textUrl = textUrl.replace("/mpiwg/online", '', 1)
  642:             
  643:             docinfo['textURL'] = textUrl
  644:     
  645:         # new style text-url-path
  646:         textUrls = dom.xpath("//texttool/text-url-path")
  647:         if textUrls and (len(textUrls) > 0):
  648:             textUrl = getTextFromNode(textUrls[0])
  649:             docinfo['textURLPath'] = textUrl
  650:             if not docinfo['imagePath']:
  651:                 # text-only, no page images
  652:                 docinfo = self.getNumTextPages(docinfo)
  653:          
  654:         presentationUrls = dom.xpath("//texttool/presentation")
  655:         docinfo = self.getBibinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get info von bib tag
  656:         #docinfo = self.getNameFromIndexMeta(url, docinfo=docinfo, dom=dom)
  657:         
  658:         if presentationUrls and (len(presentationUrls) > 0): # ueberschreibe diese durch presentation informationen 
  659:              # presentation url ergiebt sich ersetzen von index.meta in der url der fuer die Metadaten
  660:              # durch den relativen Pfad auf die presentation infos
  661:             presentationPath = getTextFromNode(presentationUrls[0])
  662:             if url.endswith("index.meta"): 
  663:                 presentationUrl = url.replace('index.meta', presentationPath)
  664:             else:
  665:                 presentationUrl = url + "/" + presentationPath
  666:                 
  667:             docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl, docinfo=docinfo, dom=dom)
  668:     
  669:         docinfo = self.getAuthinfoFromIndexMeta(url, docinfo=docinfo, dom=dom)   # get access info
  670:         
  671:         return docinfo
  672:    
  673:    
  674:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  675:         """gets the bibliographical information from the preseantion entry in texttools
  676:         """
  677:         dom=self.getPresentationInfoXML(url)
  678:         try:
  679:             docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  680:         except:
  681:             pass
  682:         try:
  683:             docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  684:         except:
  685:             pass
  686:         try:
  687:             docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  688:         except:
  689:             pass
  690:         return docinfo
  691:     
  692:     def getDocinfoFromImagePath(self,path,docinfo=None,cut=0):
  693:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  694:         logging.debug("documentViewer (getdocinfofromimagepath) path: %s"%(path))
  695:         if docinfo is None:
  696:             docinfo = {}
  697:         path=path.replace("/mpiwg/online","")
  698:         docinfo['imagePath'] = path
  699:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo,cut=cut)
  700:         
  701:         pathorig=path
  702:         for x in range(cut):       
  703:                 path=getParentDir(path)
  704:         logging.debug("documentViewer (getdocinfofromimagepath) PATH:"+path)
  705:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  706:         docinfo['imageURL'] = imageUrl
  707:         
  708:         #path ist the path to the images it assumes that the index.meta file is one level higher.
  709:         docinfo = self.getBibinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  710:         docinfo = self.getAuthinfoFromIndexMeta(pathorig,docinfo=docinfo,cut=cut+1)
  711:         return docinfo
  712:     
  713:     
  714:     def getDocinfo(self, mode, url):
  715:         """returns docinfo depending on mode"""
  716:         logging.debug("documentViewer (getdocinfo) mode: %s, url: %s"%(mode,url))
  717:         # look for cached docinfo in session
  718:         if self.REQUEST.SESSION.has_key('docinfo'):
  719:             docinfo = self.REQUEST.SESSION['docinfo']
  720:             # check if its still current
  721:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  722:                 logging.debug("documentViewer (getdocinfo) docinfo in session: %s"%docinfo)
  723:                 return docinfo
  724:         # new docinfo
  725:         docinfo = {'mode': mode, 'url': url}
  726:         if mode=="texttool": #index.meta with texttool information
  727:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  728:         elif mode=="imagepath":
  729:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  730:         elif mode=="filepath":
  731:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo,cut=1)
  732:         else:
  733:             logging.error("documentViewer (getdocinfo) unknown mode: %s!"%mode)
  734:             raise ValueError("Unknown mode %s! Has to be one of 'texttool','imagepath','filepath'."%(mode))
  735:                         
  736:         logging.debug("documentViewer (getdocinfo) docinfo: %s"%docinfo)
  737:         self.REQUEST.SESSION['docinfo'] = docinfo
  738:         return docinfo
  739:                
  740:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None, viewMode=None, tocMode=None,characterNormalization=""):
  741:         """returns pageinfo with the given parameters"""
  742:         pageinfo = {}
  743:         current = getInt(current)
  744:         pageinfo['current'] = current
  745:         rows = int(rows or self.thumbrows)
  746:         pageinfo['rows'] = rows
  747:         cols = int(cols or self.thumbcols)
  748:         pageinfo['cols'] = cols
  749:         grpsize = cols * rows
  750:         pageinfo['groupsize'] = grpsize
  751:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  752:         # int(current / grpsize) * grpsize +1))
  753:         pageinfo['start'] = start
  754:         pageinfo['end'] = start + grpsize
  755:         if (docinfo is not None) and ('numPages' in docinfo):
  756:             np = int(docinfo['numPages'])
  757:             pageinfo['end'] = min(pageinfo['end'], np)
  758:             pageinfo['numgroups'] = int(np / grpsize)
  759:             if np % grpsize > 0:
  760:                 pageinfo['numgroups'] += 1        
  761:         pageinfo['viewMode'] = viewMode
  762:         pageinfo['tocMode'] = tocMode
  763:         #pageinfo['characterNormalization'] =characterNormalization
  764:         pageinfo['characterNormalization'] = self.REQUEST.get('characterNormalization',' ')
  765:         pageinfo['query'] = self.REQUEST.get('query',' ')
  766:         pageinfo['queryType'] = self.REQUEST.get('queryType',' ')
  767:         pageinfo['querySearch'] =self.REQUEST.get('querySearch', 'fulltext')
  768:         pageinfo['textPN'] = self.REQUEST.get('textPN','1')
  769:         pageinfo['highlightQuery'] = self.REQUEST.get('highlightQuery','')
  770:         pageinfo['tocPageSize'] = self.REQUEST.get('tocPageSize', '30')
  771:         pageinfo['queryPageSize'] =self.REQUEST.get('queryPageSize', '10')
  772:         pageinfo['tocPN'] = self.REQUEST.get('tocPN', '1')
  773:         toc = int (pageinfo['tocPN'])
  774:         pageinfo['textPages'] =int (toc)
  775:         
  776:         if 'tocSize_%s'%tocMode in docinfo:
  777:             tocSize = int(docinfo['tocSize_%s'%tocMode])
  778:             tocPageSize = int(pageinfo['tocPageSize'])
  779:             # cached toc           
  780:             if tocSize%tocPageSize>0:
  781:                 tocPages=tocSize/tocPageSize+1
  782:             else:
  783:                 tocPages=tocSize/tocPageSize
  784:             pageinfo['tocPN'] = min (tocPages,toc)                    
  785:         pageinfo['searchPN'] =self.REQUEST.get('searchPN','1')
  786:         pageinfo['sn'] =self.REQUEST.get('sn','')
  787:         return pageinfo
  788:     
  789: def changeDocumentViewer(self,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=5,authgroups='mpiwg',RESPONSE=None):
  790:         """init document viewer"""
  791:         self.title=title
  792:         self.digilibBaseUrl = digilibBaseUrl
  793:         self.thumbrows = thumbrows
  794:         self.thumbcols = thumbcols
  795:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  796:         if RESPONSE is not None:
  797:             RESPONSE.redirect('manage_main')
  798:         
  799: def manage_AddDocumentViewerForm(self):
  800:     """add the viewer form"""
  801:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  802:     return pt()
  803:   
  804: def manage_AddDocumentViewer(self,id,imageScalerUrl="",textServerName="",title="",RESPONSE=None):
  805:     """add the viewer"""
  806:     newObj=documentViewer(id,imageScalerUrl=imageScalerUrl,title=title,textServerName=textServerName)
  807:     self._setObject(id,newObj)
  808:     
  809:     if RESPONSE is not None:
  810:         RESPONSE.redirect('manage_main')
  811: 
  812: ## DocumentViewerTemplate class
  813: class DocumentViewerTemplate(ZopePageTemplate):
  814:     """Template for document viewer"""
  815:     meta_type="DocumentViewer Template"
  816: 
  817: 
  818: def manage_addDocumentViewerTemplateForm(self):
  819:     """Form for adding"""
  820:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  821:     return pt()
  822: 
  823: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  824:                            REQUEST=None, submit=None):
  825:     "Add a Page Template with optional file content."
  826: 
  827:     self._setObject(id, DocumentViewerTemplate(id))
  828:     ob = getattr(self, id)
  829:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  830:     logging.info("txt %s:"%txt)
  831:     ob.pt_edit(txt,"text/html")
  832:     if title:
  833:         ob.pt_setTitle(title)
  834:     try:
  835:         u = self.DestinationURL()
  836:     except AttributeError:
  837:         u = REQUEST['URL1']
  838:         
  839:     u = "%s/%s" % (u, urllib.quote(id))
  840:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  841:     return ''
  842: 
  843: 
  844:     

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