Annotation of documentViewer/documentViewer.py, revision 1.25

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

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