File:  [Repository] / documentViewer / documentViewer.py
Revision 1.28: download - view: text, annotated - select for diffs - revision graph
Thu Jun 14 16:07:21 2007 UTC (17 years ago) by casties
Branches: MAIN
CVS tags: HEAD
fixed bug in calculation of group numbers

    1: 
    2: 
    3: from OFS.Folder import Folder
    4: from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
    5: from Products.PageTemplates.PageTemplateFile import PageTemplateFile 
    6: from AccessControl import ClassSecurityInfo
    7: from AccessControl import getSecurityManager
    8: from Globals import package_home
    9: 
   10: from Ft.Xml.Domlette import NonvalidatingReader
   11: from Ft.Xml.Domlette import PrettyPrint, Print
   12: from Ft.Xml import EMPTY_NAMESPACE, Parse
   13: 
   14: import Ft.Xml.XPath
   15: 
   16: import os.path
   17: import sys
   18: import cgi
   19: import urllib
   20: import logging
   21: import math
   22: 
   23: import urlparse 
   24: 
   25: def logger(txt,method,txt2):
   26:     """logging"""
   27:     logging.info(txt+ txt2)
   28:     
   29:     
   30: def getInt(number, default=0):
   31:     """returns always an int (0 in case of problems)"""
   32:     try:
   33:         return int(number)
   34:     except:
   35:         return default
   36: 
   37: def getTextFromNode(nodename):
   38:     """get the cdata content of a node"""
   39:     if nodename is None:
   40:         return ""
   41:     nodelist=nodename.childNodes
   42:     rc = ""
   43:     for node in nodelist:
   44:         if node.nodeType == node.TEXT_NODE:
   45:            rc = rc + node.data
   46:     return rc
   47: 
   48:         
   49: def getParentDir(path):
   50:     """returns pathname shortened by one"""
   51:     return '/'.join(path.split('/')[0:-1])
   52:         
   53: 
   54: import socket
   55: 
   56: def urlopen(url,timeout=2):
   57:         """urlopen mit timeout"""
   58:         socket.setdefaulttimeout(timeout)
   59:         ret=urllib.urlopen(url)
   60:         socket.setdefaulttimeout(5)
   61:         return ret
   62: 
   63: 
   64: ##
   65: ## documentViewer class
   66: ##
   67: class documentViewer(Folder):
   68:     """document viewer"""
   69:     #textViewerUrl="http://127.0.0.1:8080/HFQP/testXSLT/getPage?"
   70:     
   71:     meta_type="Document viewer"
   72:     
   73:     security=ClassSecurityInfo()
   74:     manage_options=Folder.manage_options+(
   75:         {'label':'main config','action':'changeDocumentViewerForm'},
   76:         )
   77: 
   78:     # templates and forms
   79:     viewer_main = PageTemplateFile('zpt/viewer_main', globals())
   80:     thumbs_main = PageTemplateFile('zpt/thumbs_main', globals())
   81:     image_main = PageTemplateFile('zpt/image_main', globals())
   82:     head_main = PageTemplateFile('zpt/head_main', globals())
   83:     docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
   84:     info_xml = PageTemplateFile('zpt/info_xml', globals())
   85: 
   86:     security.declareProtected('View management screens','changeDocumentViewerForm')    
   87:     changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
   88: 
   89:     
   90:     def __init__(self,id,imageViewerUrl,textViewerUrl=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=10,authgroups="mpiwg"):
   91:         """init document viewer"""
   92:         self.id=id
   93:         self.title=title
   94:         self.imageViewerUrl=imageViewerUrl
   95:         self.textViewerUrl=textViewerUrl
   96:         
   97:         if not digilibBaseUrl:
   98:             self.digilibBaseUrl = self.findDigilibUrl()
   99:         else:
  100:             self.digilibBaseUrl = digilibBaseUrl
  101:         self.thumbcols = thumbcols
  102:         self.thumbrows = thumbrows
  103:         # authgroups is list of authorized groups (delimited by ,)
  104:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  105:         # add template folder so we can always use template.something
  106:         self.manage_addFolder('template')
  107: 
  108: 
  109:     security.declareProtected('View','index_html')
  110:     def index_html(self,mode,url,viewMode="auto",start=None,pn=1):
  111:         '''
  112:         view it
  113:         @param mode: defines how to access the document behind url 
  114:         @param url: url which contains display information
  115:         @param viewMode: if images display images, if text display text, default is images (text,images or auto)
  116:         
  117:         '''
  118:         
  119:         logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
  120:         
  121:         if not hasattr(self, 'template'):
  122:             # create template folder if it doesn't exist
  123:             self.manage_addFolder('template')
  124:             
  125:         if not self.digilibBaseUrl:
  126:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  127:             
  128:         docinfo = self.getDocinfo(mode=mode,url=url)
  129:         pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
  130:         pt = getattr(self.template, 'viewer_main')
  131:         
  132:         if viewMode=="auto": # automodus gewaehlt
  133:             if docinfo.get("textURL",'') and self.textViewerUrl: #texturl gesetzt und textViewer konfiguriert
  134:                 viewMode="text"
  135:             else:
  136:                 viewMode="images"
  137:                
  138:         return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode)
  139:   
  140:   
  141:     def getLink(self,param=None,val=None):
  142:         """link to documentviewer with parameter param set to val"""
  143:         params=self.REQUEST.form.copy()
  144:         if param is not None:
  145:             if val is None:
  146:                 if params.has_key(param):
  147:                     del params[param]
  148:             else:
  149:                 params[param] = str(val)
  150:                 
  151:         # quote values and assemble into query string
  152:         ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()])
  153:         url=self.REQUEST['URL1']+"?"+ps
  154:         return url
  155: 
  156: 
  157:     def getInfo_xml(self,url,mode):
  158:         """returns info about the document as XML"""
  159: 
  160:         if not self.digilibBaseUrl:
  161:             self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
  162:         
  163:         docinfo = self.getDocinfo(mode=mode,url=url)
  164:         pt = getattr(self.template, 'info_xml')
  165:         return pt(docinfo=docinfo)
  166: 
  167:     
  168:     def getStyle(self, idx, selected, style=""):
  169:         """returns a string with the given style and append 'sel' if path == selected."""
  170:         #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
  171:         if idx == selected:
  172:             return style + 'sel'
  173:         else:
  174:             return style
  175: 
  176:         
  177:     def isAccessible(self, docinfo):
  178:         """returns if access to the resource is granted"""
  179:         access = docinfo.get('accessType', None)
  180:         logger("documentViewer (accessOK)", logging.INFO, "access type %s"%access)
  181:         if access is not None and access == 'free':
  182:             logger("documentViewer (accessOK)", logging.INFO, "access is free")
  183:             return True
  184:         elif access is None or access in self.authgroups:
  185:             # only local access -- only logged in users
  186:             user = getSecurityManager().getUser()
  187:             if user is not None:
  188:                 #print "user: ", user
  189:                 return (user.getUserName() != "Anonymous User")
  190:             else:
  191:                 return False
  192:         
  193:         logger("documentViewer (accessOK)", logging.INFO, "unknown access type %s"%access)
  194:         return False
  195:     
  196:                 
  197:     def getDirinfoFromDigilib(self,path,docinfo=None):
  198:         """gibt param von dlInfo aus"""
  199:         num_retries = 3
  200:         if docinfo is None:
  201:             docinfo = {}
  202:             
  203:         infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
  204:     
  205:         logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo from %s"%(infoUrl))
  206:         
  207:         for cnt in range(num_retries):
  208:             try:
  209:                 # dom = NonvalidatingReader.parseUri(imageUrl)
  210:                 txt=urllib.urlopen(infoUrl).read()
  211:                 dom = Parse(txt)
  212:                 break
  213:             except:
  214:                 logger("documentViewer (getdirinfofromdigilib)", logging.ERROR, "error reading %s (try %d)"%(infoUrl,cnt))
  215:         else:
  216:             raise IOError("Unable to get dir-info from %s"%(infoUrl))
  217:         
  218:         sizes=dom.xpath("//dir/size")
  219:         logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo:size"%sizes)
  220:         
  221:         if sizes:
  222:             docinfo['numPages'] = int(getTextFromNode(sizes[0]))
  223:         else:
  224:             docinfo['numPages'] = 0
  225:                         
  226:         return docinfo
  227:     
  228:             
  229:     def getIndexMeta(self, url):
  230:         """returns dom of index.meta document at url"""
  231:         num_retries = 3
  232:         dom = None
  233:         metaUrl = None
  234:         if url.startswith("http://"):
  235:             # real URL
  236:             metaUrl = url
  237:         else:
  238:             # online path
  239:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  240:             metaUrl=server+url.replace("/mpiwg/online","")
  241:             if not metaUrl.endswith("index.meta"):
  242:                 metaUrl += "/index.meta"
  243:         print metaUrl
  244:         for cnt in range(num_retries):
  245:             try:
  246:                 # patch dirk encoding fehler treten dann nicht mehr auf
  247:                 # dom = NonvalidatingReader.parseUri(metaUrl)
  248:                 txt=urllib.urlopen(metaUrl).read()
  249:                 dom = Parse(txt)
  250:                 break
  251:             except:
  252:                 logger("ERROR documentViewer (getIndexMata)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2])
  253:                 
  254:         if dom is None:
  255:             raise IOError("Unable to read index meta from %s"%(url))
  256:                  
  257:         return dom
  258:     
  259:     def getPresentationInfoXML(self, url):
  260:         """returns dom of info.xml document at url"""
  261:         num_retries = 3
  262:         dom = None
  263:         metaUrl = None
  264:         if url.startswith("http://"):
  265:             # real URL
  266:             metaUrl = url
  267:         else:
  268:             # online path
  269:             server=self.digilibBaseUrl+"/servlet/Texter?fn="
  270:             metaUrl=server+url.replace("/mpiwg/online","")
  271:            
  272:         
  273:         for cnt in range(num_retries):
  274:             try:
  275:                 # patch dirk encoding fehler treten dann nicht mehr auf
  276:                 # dom = NonvalidatingReader.parseUri(metaUrl)
  277:                 txt=urllib.urlopen(metaUrl).read()
  278:                 dom = Parse(txt)
  279:                 break
  280:             except:
  281:                 logger("ERROR documentViewer (getPresentationInfoXML)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2])
  282:                 
  283:         if dom is None:
  284:             raise IOError("Unable to read infoXMLfrom %s"%(url))
  285:                  
  286:         return dom
  287:                         
  288:         
  289:     def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None):
  290:         """gets authorization info from the index.meta file at path or given by dom"""
  291:         logger("documentViewer (getauthinfofromindexmeta)", logging.INFO,"path: %s"%(path))
  292:         
  293:         access = None
  294:         
  295:         if docinfo is None:
  296:             docinfo = {}
  297:             
  298:         if dom is None:
  299:             dom = self.getIndexMeta(getParentDir(path))
  300:        
  301:         acctype = dom.xpath("//access-conditions/access/@type")
  302:         if acctype and (len(acctype)>0):
  303:             access=acctype[0].value
  304:             if access in ['group', 'institution']:
  305:                 access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower()
  306:             
  307:         docinfo['accessType'] = access
  308:         return docinfo
  309:     
  310:         
  311:     def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None):
  312:         """gets bibliographical info from the index.meta file at path or given by dom"""
  313:         logging.debug("documentViewer (getbibinfofromindexmeta) path: %s"%(path))
  314:         
  315:         if docinfo is None:
  316:             docinfo = {}
  317:             
  318:         if dom is None:
  319:             dom = self.getIndexMeta(getParentDir(path))
  320:             
  321:         # put in all raw bib fields as dict "bib"
  322:         bib = dom.xpath("//bib/*")
  323:         if bib and len(bib)>0:
  324:             bibinfo = {}
  325:             for e in bib:
  326:                 bibinfo[e.localName] = getTextFromNode(e)
  327:             docinfo['bib'] = bibinfo
  328:         
  329:         # extract some fields (author, title, year) according to their mapping
  330:         metaData=self.metadata.main.meta.bib
  331:         bibtype=dom.xpath("//bib/@type")
  332:         if bibtype and (len(bibtype)>0):
  333:             bibtype=bibtype[0].value
  334:         else:
  335:             bibtype="generic"
  336:             
  337:         bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
  338:         docinfo['bib_type'] = bibtype
  339:         bibmap=metaData.generateMappingForType(bibtype)
  340:         # if there is no mapping bibmap is empty (mapping sometimes has empty fields)
  341:         if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
  342:             docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
  343:             docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
  344:             docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
  345:             logging.debug("documentViewer (getbibinfofromindexmeta) using mapping for %s"%bibtype)
  346:             try:
  347:                 docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0])
  348:             except:
  349:                 docinfo['lang']=''
  350: 
  351:         return docinfo
  352: 
  353:         
  354:     def getDocinfoFromTextTool(self,url,dom=None,docinfo=None):
  355:        """parse texttool tag in index meta"""
  356:        logger("documentViewer (getdocinfofromtexttool)", logging.INFO,"url: %s"%(url))
  357:        if docinfo is None:
  358:            docinfo = {}
  359:            
  360:        if docinfo.get('lang',None) is None:
  361:            docinfo['lang']='' # default keine Sprache gesetzt
  362:        if dom is None:
  363:            dom = self.getIndexMeta(url)
  364:        
  365:        archivePath = None
  366:        archiveName = None
  367: 
  368:        archiveNames=dom.xpath("//resource/name")
  369:        if archiveNames and (len(archiveNames)>0):
  370:            archiveName=getTextFromNode(archiveNames[0])
  371:        else:
  372:            logger("documentViewer (getdocinfofromtexttool)", logging.WARNING,"resource/name missing in: %s"%(url))
  373:        
  374:        archivePaths=dom.xpath("//resource/archive-path")
  375:        if archivePaths and (len(archivePaths)>0):
  376:            archivePath=getTextFromNode(archivePaths[0])
  377:            # clean up archive path
  378:            if archivePath[0] != '/':
  379:                archivePath = '/' + archivePath
  380:            if archiveName and (not archivePath.endswith(archiveName)):
  381:                archivePath += "/" + archiveName
  382:        else:
  383:            # try to get archive-path from url
  384:            logger("documentViewer (getdocinfofromtexttool)", logging.WARNING,"resource/archive-path missing in: %s"%(url))
  385:            if (not url.startswith('http')):
  386:                archivePath = url.replace('index.meta', '')
  387:                
  388:        if archivePath is None:
  389:            # we balk without archive-path
  390:            raise IOError("Missing archive-path (for text-tool) in %s"%(url))
  391:        
  392:        imageDirs=dom.xpath("//texttool/image")
  393:        if imageDirs and (len(imageDirs)>0):
  394:            imageDir=getTextFromNode(imageDirs[0])
  395:        else:
  396:            # we balk with no image tag / not necessary anymore because textmode is now standard
  397:            #raise IOError("No text-tool info in %s"%(url))
  398:            imageDir=""
  399:            docinfo['numPages']=1 # im moment einfach auf eins setzen, navigation ueber die thumbs geht natuerlich nicht
  400:        
  401:            docinfo['imagePath'] = "" # keine Bilder
  402:            docinfo['imageURL'] = ""
  403: 
  404:        if imageDir and archivePath:
  405:            #print "image: ", imageDir, " archivepath: ", archivePath
  406:            imageDir=os.path.join(archivePath,imageDir)
  407:            imageDir=imageDir.replace("/mpiwg/online",'')
  408:            docinfo=self.getDirinfoFromDigilib(imageDir,docinfo=docinfo)
  409:            docinfo['imagePath'] = imageDir
  410:            docinfo['imageURL'] = self.digilibBaseUrl+"/servlet/Scaler?fn="+imageDir
  411:            
  412:        viewerUrls=dom.xpath("//texttool/digiliburlprefix")
  413:        if viewerUrls and (len(viewerUrls)>0):
  414:            viewerUrl=getTextFromNode(viewerUrls[0])
  415:            docinfo['viewerURL'] = viewerUrl
  416:                   
  417:        textUrls=dom.xpath("//texttool/text")
  418:        if textUrls and (len(textUrls)>0):
  419:            textUrl=getTextFromNode(textUrls[0])
  420:            if urlparse.urlparse(textUrl)[0]=="": #keine url
  421:                textUrl=os.path.join(archivePath,textUrl) 
  422: 
  423:            docinfo['textURL'] = textUrl
  424:    
  425:        presentationUrls=dom.xpath("//texttool/presentation")
  426:        docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)   # get info von bib tag
  427:        
  428:        if presentationUrls and (len(presentationUrls)>0): # ueberschreibe diese durch presentation informationen 
  429:             # presentation url ergiebt sich ersetzen von index.meta in der url der fŸr die Metadaten
  430:             # durch den relativen Pfad auf die presentation infos
  431:            presentationUrl=url.replace('index.meta',getTextFromNode(presentationUrls[0]))
  432:            docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl,docinfo=docinfo,dom=dom)
  433: 
  434:        docinfo = self.getAuthinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)   # get access info
  435:        return docinfo
  436:    
  437:    
  438:     def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None):
  439:         """gets the bibliographical information from the preseantion entry in texttools
  440:         """
  441:         dom=self.getPresentationInfoXML(url)
  442:         docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
  443:         docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
  444:         #docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
  445:         return docinfo
  446:     
  447:     def getDocinfoFromImagePath(self,path,docinfo=None):
  448:         """path ist the path to the images it assumes that the index.meta file is one level higher."""
  449:         logger("documentViewer (getdocinfofromimagepath)", logging.INFO,"path: %s"%(path))
  450:         if docinfo is None:
  451:             docinfo = {}
  452:         path=path.replace("/mpiwg/online","")
  453:         docinfo['imagePath'] = path
  454:         docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo)
  455:         imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
  456:         docinfo['imageURL'] = imageUrl
  457:         
  458:         docinfo = self.getBibinfoFromIndexMeta(path,docinfo=docinfo)
  459:         docinfo = self.getAuthinfoFromIndexMeta(path,docinfo=docinfo)
  460:         return docinfo
  461:     
  462:     
  463:     def getDocinfo(self, mode, url):
  464:         """returns docinfo depending on mode"""
  465:         logger("documentViewer (getdocinfo)", logging.INFO,"mode: %s, url: %s"%(mode,url))
  466:         # look for cached docinfo in session
  467:         if self.REQUEST.SESSION.has_key('docinfo'):
  468:             docinfo = self.REQUEST.SESSION['docinfo']
  469:             # check if its still current
  470:             if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
  471:                 logger("documentViewer (getdocinfo)", logging.INFO,"docinfo in session: %s"%docinfo)
  472:                 return docinfo
  473:         # new docinfo
  474:         docinfo = {'mode': mode, 'url': url}
  475:         if mode=="texttool": #index.meta with texttool information
  476:             docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
  477:         elif mode=="imagepath":
  478:             docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
  479:         else:
  480:             logger("documentViewer (getdocinfo)", logging.ERROR,"unknown mode!")
  481:             raise ValueError("Unknown mode %s"%(mode))
  482:                         
  483:         logger("documentViewer (getdocinfo)", logging.INFO,"docinfo: %s"%docinfo)
  484:         self.REQUEST.SESSION['docinfo'] = docinfo
  485:         return docinfo
  486:         
  487:         
  488:     def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None):
  489:         """returns pageinfo with the given parameters"""
  490:         pageinfo = {}
  491:         current = getInt(current)
  492:         pageinfo['current'] = current
  493:         rows = int(rows or self.thumbrows)
  494:         pageinfo['rows'] = rows
  495:         cols = int(cols or self.thumbcols)
  496:         pageinfo['cols'] = cols
  497:         grpsize = cols * rows
  498:         pageinfo['groupsize'] = grpsize
  499:         start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
  500:         # int(current / grpsize) * grpsize +1))
  501:         pageinfo['start'] = start
  502:         pageinfo['end'] = start + grpsize
  503:         if docinfo is not None:
  504:             np = int(docinfo['numPages'])
  505:             pageinfo['end'] = min(pageinfo['end'], np)
  506:             pageinfo['numgroups'] = int(np / grpsize)
  507:             if np % grpsize > 0:
  508:                 pageinfo['numgroups'] += 1
  509:                 
  510:         return pageinfo
  511:                 
  512:     def text(self,mode,url,pn):
  513:         """give text"""
  514:         if mode=="texttool": #index.meta with texttool information
  515:             (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)
  516:         
  517:         #print textpath
  518:         try:
  519:             dom = NonvalidatingReader.parseUri(textpath)
  520:         except:
  521:             return None
  522:     
  523:         list=[]
  524:         nodes=dom.xpath("//pb")
  525: 
  526:         node=nodes[int(pn)-1]
  527:         
  528:         p=node
  529:         
  530:         while p.tagName!="p":
  531:             p=p.parentNode
  532:         
  533:         
  534:         endNode=nodes[int(pn)]
  535:         
  536:         
  537:         e=endNode
  538:         
  539:         while e.tagName!="p":
  540:             e=e.parentNode
  541:         
  542:         
  543:         next=node.parentNode
  544:         
  545:         #sammle s
  546:         while next and (next!=endNode.parentNode):
  547:             list.append(next)    
  548:             next=next.nextSibling    
  549:         list.append(endNode.parentNode)
  550:         
  551:         if p==e:# beide im selben paragraphen
  552:             pass
  553: #    else:
  554: #            next=p
  555: #            while next!=e:
  556: #                print next,e
  557: #                list.append(next)
  558: #                next=next.nextSibling
  559: #            
  560: #        for x in list:
  561: #            PrettyPrint(x)
  562: #
  563: #        return list
  564: #
  565: 
  566:     def findDigilibUrl(self):
  567:         """try to get the digilib URL from zogilib"""
  568:         url = self.imageViewerUrl[:-1] + "/getScalerUrl"
  569:         #print urlparse.urlparse(url)[0]
  570:         #print urlparse.urljoin(self.absolute_url(),url)
  571:         logging.info("finddigiliburl: %s"%urlparse.urlparse(url)[0])
  572:         logging.info("finddigiliburl: %s"%urlparse.urljoin(self.absolute_url(),url))
  573:         
  574:         try:
  575:             if urlparse.urlparse(url)[0]=='': #relative path
  576:                 url=urlparse.urljoin(self.absolute_url()+"/",url)
  577:                 
  578:             scaler = urlopen(url).read()
  579:             return scaler.replace("/servlet/Scaler?", "")
  580:         except:
  581:             return None
  582:     
  583:     def changeDocumentViewer(self,imageViewerUrl,textViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,authgroups='mpiwg',RESPONSE=None):
  584:         """init document viewer"""
  585:         self.title=title
  586:         self.imageViewerUrl=imageViewerUrl
  587:         self.textViewerUrl=textViewerUrl
  588:         self.digilibBaseUrl = digilibBaseUrl
  589:         self.thumbrows = thumbrows
  590:         self.thumbcols = thumbcols
  591:         self.authgroups = [s.strip().lower() for s in authgroups.split(',')]
  592:         if RESPONSE is not None:
  593:             RESPONSE.redirect('manage_main')
  594:     
  595:     
  596:         
  597:         
  598: #    security.declareProtected('View management screens','renameImageForm')
  599: 
  600: def manage_AddDocumentViewerForm(self):
  601:     """add the viewer form"""
  602:     pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
  603:     return pt()
  604:   
  605: def manage_AddDocumentViewer(self,id,imageViewerUrl="",textViewerUrl="",title="",RESPONSE=None):
  606:     """add the viewer"""
  607:     newObj=documentViewer(id,imageViewerUrl,title=title,textViewerUrl=textViewerUrl)
  608:     self._setObject(id,newObj)
  609:     
  610:     if RESPONSE is not None:
  611:         RESPONSE.redirect('manage_main')
  612: 
  613: 
  614: ##
  615: ## DocumentViewerTemplate class
  616: ##
  617: class DocumentViewerTemplate(ZopePageTemplate):
  618:     """Template for document viewer"""
  619:     meta_type="DocumentViewer Template"
  620: 
  621: 
  622: def manage_addDocumentViewerTemplateForm(self):
  623:     """Form for adding"""
  624:     pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
  625:     return pt()
  626: 
  627: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
  628:                            REQUEST=None, submit=None):
  629:     "Add a Page Template with optional file content."
  630: 
  631:     self._setObject(id, DocumentViewerTemplate(id))
  632:     ob = getattr(self, id)
  633:     txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read()
  634:     logging.info("txt %s:"%txt)
  635:     ob.pt_edit(txt,"text/html")
  636:     if title:
  637:         ob.pt_setTitle(title)
  638:     try:
  639:         u = self.DestinationURL()
  640:     except AttributeError:
  641:         u = REQUEST['URL1']
  642:         
  643:     u = "%s/%s" % (u, urllib.quote(id))
  644:     REQUEST.RESPONSE.redirect(u+'/manage_main')
  645:     return ''
  646: 
  647: 
  648:     

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