--- documentViewer/documentViewer.py 2006/07/18 16:59:57 1.16 +++ documentViewer/documentViewer.py 2007/05/03 17:28:23 1.24 @@ -1,6 +1,8 @@ + + from OFS.Folder import Folder from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate -from Products.PageTemplates.PageTemplateFile import PageTemplateFile +from Products.PageTemplates.PageTemplateFile import PageTemplateFile from AccessControl import ClassSecurityInfo from AccessControl import getSecurityManager from Globals import package_home @@ -15,8 +17,15 @@ import os.path import sys import cgi import urllib -import zLOG +import logging +import urlparse + +def logger(txt,method,txt2): + """logging""" + logging.info(txt+ txt2) + + def getInt(number, default=0): """returns always an int (0 in case of problems)""" try: @@ -25,6 +34,7 @@ def getInt(number, default=0): return default def getTextFromNode(nodename): + """get the cdata content of a node""" if nodename is None: return "" nodelist=nodename.childNodes @@ -55,7 +65,8 @@ def urlopen(url,timeout=2): ## class documentViewer(Folder): """document viewer""" - + #textViewerUrl="http://127.0.0.1:8080/HFQP/testXSLT/getPage?" + meta_type="Document viewer" security=ClassSecurityInfo() @@ -74,11 +85,13 @@ class documentViewer(Folder): changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals()) - def __init__(self,id,imageViewerUrl,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=10,authgroups="mpiwg"): + def __init__(self,id,imageViewerUrl,textViewerUrl=None,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=10,authgroups="mpiwg"): """init document viewer""" self.id=id self.title=title self.imageViewerUrl=imageViewerUrl + self.textViewerUrl=textViewerUrl + if not digilibBaseUrl: self.digilibBaseUrl = self.findDigilibUrl() else: @@ -92,14 +105,16 @@ class documentViewer(Folder): security.declareProtected('View','index_html') - def index_html(self,mode,url,start=None,pn=1): + def index_html(self,mode,url,viewMode="auto",start=None,pn=1): ''' view it - @param mode: defines which type of document is behind url + @param mode: defines which type of document is behind url (text,images or auto) @param url: url which contains display information + @param viewMode: if images display images, if text display text, default is images + ''' - zLOG.LOG("documentViewer (index)", zLOG.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn)) + logger("documentViewer (index)", logging.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn)) if not hasattr(self, 'template'): # create template folder if it doesn't exist @@ -111,7 +126,15 @@ class documentViewer(Folder): docinfo = self.getDocinfo(mode=mode,url=url) pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo) pt = getattr(self.template, 'viewer_main') - return pt(docinfo=docinfo,pageinfo=pageinfo) + + if viewMode=="auto": # automodus gewaehlt + if docinfo.get("textURL",'') and self.textViewerUrl: #texturl gesetzt und textViewer konfiguriert + viewMode="text" + else: + viewMode="images" + + + return pt(docinfo=docinfo,pageinfo=pageinfo,viewMode=viewMode) def getLink(self,param=None,val=None): @@ -132,7 +155,7 @@ class documentViewer(Folder): def getStyle(self, idx, selected, style=""): """returns a string with the given style and append 'sel' if path == selected.""" - #zLOG.LOG("documentViewer (getstyle)", zLOG.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style)) + #logger("documentViewer (getstyle)", logging.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style)) if idx == selected: return style + 'sel' else: @@ -142,14 +165,11 @@ class documentViewer(Folder): def isAccessible(self, docinfo): """returns if access to the resource is granted""" access = docinfo.get('accessType', None) - zLOG.LOG("documentViewer (accessOK)", zLOG.INFO, "access type %s"%access) - if access is None: - # no information - no access - return False - elif access == 'free': - zLOG.LOG("documentViewer (accessOK)", zLOG.INFO, "access is free") + logger("documentViewer (accessOK)", logging.INFO, "access type %s"%access) + if access is not None and access == 'free': + logger("documentViewer (accessOK)", logging.INFO, "access is free") return True - elif access in self.authgroups: + elif access is None or access in self.authgroups: # only local access -- only logged in users user = getSecurityManager().getUser() if user is not None: @@ -158,7 +178,7 @@ class documentViewer(Folder): else: return False - zLOG.LOG("documentViewer (accessOK)", zLOG.INFO, "unknown access type %s"%access) + logger("documentViewer (accessOK)", logging.INFO, "unknown access type %s"%access) return False @@ -170,7 +190,7 @@ class documentViewer(Folder): infoUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path - zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo from %s"%(infoUrl)) + logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo from %s"%(infoUrl)) for cnt in range(num_retries): try: @@ -179,12 +199,12 @@ class documentViewer(Folder): dom = Parse(txt) break except: - zLOG.LOG("documentViewer (getdirinfofromdigilib)", zLOG.ERROR, "error reading %s (try %d)"%(infoUrl,cnt)) + logger("documentViewer (getdirinfofromdigilib)", logging.ERROR, "error reading %s (try %d)"%(infoUrl,cnt)) else: raise IOError("Unable to get dir-info from %s"%(infoUrl)) sizes=dom.xpath("//dir/size") - zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo:size"%sizes) + logger("documentViewer (getparamfromdigilib)", logging.INFO, "dirInfo:size"%sizes) if sizes: docinfo['numPages'] = int(getTextFromNode(sizes[0])) @@ -208,7 +228,7 @@ class documentViewer(Folder): metaUrl=server+url.replace("/mpiwg/online","") if not metaUrl.endswith("index.meta"): metaUrl += "/index.meta" - + print metaUrl for cnt in range(num_retries): try: # patch dirk encoding fehler treten dann nicht mehr auf @@ -217,17 +237,46 @@ class documentViewer(Folder): dom = Parse(txt) break except: - zLOG.LOG("ERROR documentViewer (getIndexMata)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2]) + logger("ERROR documentViewer (getIndexMata)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2]) if dom is None: raise IOError("Unable to read index meta from %s"%(url)) return dom + + def getPresentationInfoXML(self, url): + """returns dom of info.xml document at url""" + num_retries = 3 + dom = None + metaUrl = None + if url.startswith("http://"): + # real URL + metaUrl = url + else: + # online path + server=self.digilibBaseUrl+"/servlet/Texter?fn=" + metaUrl=server+url.replace("/mpiwg/online","") + + + for cnt in range(num_retries): + try: + # patch dirk encoding fehler treten dann nicht mehr auf + # dom = NonvalidatingReader.parseUri(metaUrl) + txt=urllib.urlopen(metaUrl).read() + dom = Parse(txt) + break + except: + logger("ERROR documentViewer (getPresentationInfoXML)", logging.INFO,"%s (%s)"%sys.exc_info()[0:2]) + + if dom is None: + raise IOError("Unable to read infoXMLfrom %s"%(url)) + + return dom def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None): """gets authorization info from the index.meta file at path or given by dom""" - zLOG.LOG("documentViewer (getauthinfofromindexmeta)", zLOG.INFO,"path: %s"%(path)) + logger("documentViewer (getauthinfofromindexmeta)", logging.INFO,"path: %s"%(path)) access = None @@ -236,7 +285,7 @@ class documentViewer(Folder): if dom is None: dom = self.getIndexMeta(getParentDir(path)) - + acctype = dom.xpath("//access-conditions/access/@type") if acctype and (len(acctype)>0): access=acctype[0].value @@ -249,7 +298,7 @@ class documentViewer(Folder): def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None): """gets bibliographical info from the index.meta file at path or given by dom""" - zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path)) + logger("documentViewer (getbibinfofromindexmeta)", logging.INFO,"path: %s"%(path)) if docinfo is None: docinfo = {} @@ -271,16 +320,23 @@ class documentViewer(Folder): docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0]) docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0]) docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0]) - + + logging.info("bla") + try: + docinfo['lang']=getTextFromNode(dom.xpath("//bib/lang")[0]) + except: + docinfo['lang']='' return docinfo def getDocinfoFromTextTool(self,url,dom=None,docinfo=None): """parse texttool tag in index meta""" - zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.INFO,"url: %s"%(url)) + logger("documentViewer (getdocinfofromtexttool)", logging.INFO,"url: %s"%(url)) if docinfo is None: docinfo = {} + if docinfo.get('lang',None) is None: + docinfo['lang']='' # default keine Sprache gesetzt if dom is None: dom = self.getIndexMeta(url) @@ -291,7 +347,7 @@ class documentViewer(Folder): if archiveNames and (len(archiveNames)>0): archiveName=getTextFromNode(archiveNames[0]) else: - zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.WARNING,"resource/name missing in: %s"%(url)) + logger("documentViewer (getdocinfofromtexttool)", logging.WARNING,"resource/name missing in: %s"%(url)) archivePaths=dom.xpath("//resource/archive-path") if archivePaths and (len(archivePaths)>0): @@ -303,7 +359,7 @@ class documentViewer(Folder): archivePath += "/" + archiveName else: # try to get archive-path from url - zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.WARNING,"resource/archive-path missing in: %s"%(url)) + logger("documentViewer (getdocinfofromtexttool)", logging.WARNING,"resource/archive-path missing in: %s"%(url)) if (not url.startswith('http')): archivePath = url.replace('index.meta', '') @@ -315,9 +371,14 @@ class documentViewer(Folder): if imageDirs and (len(imageDirs)>0): imageDir=getTextFromNode(imageDirs[0]) else: - # we balk with no image tag - raise IOError("No text-tool info in %s"%(url)) - + # we balk with no image tag / not necessary anymore because textmode is now standard + #raise IOError("No text-tool info in %s"%(url)) + imageDir="" + docinfo['numPages']=1 # im moment einfach auf eins setzen, navigation ueber die thumbs geht natuerlich nicht + + docinfo['imagePath'] = "" # keine Bilder + docinfo['imageURL'] = "" + if imageDir and archivePath: #print "image: ", imageDir, " archivepath: ", archivePath imageDir=os.path.join(archivePath,imageDir) @@ -334,16 +395,36 @@ class documentViewer(Folder): textUrls=dom.xpath("//texttool/text") if textUrls and (len(textUrls)>0): textUrl=getTextFromNode(textUrls[0]) + if urlparse.urlparse(textUrl)[0]=="": #keine url + textUrl=os.path.join(archivePath,textUrl) + docinfo['textURL'] = textUrl - - docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom) - docinfo = self.getAuthinfoFromIndexMeta(url,docinfo=docinfo,dom=dom) - return docinfo + presentationUrls=dom.xpath("//texttool/presentation") + docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom) # get info von bib tag + + if presentationUrls and (len(presentationUrls)>0): # ueberschreibe diese durch presentation informationen + # presentation url ergiebt sich ersetzen von index.meta in der url der fŸr die Metadaten + # durch den relativen Pfad auf die presentation infos + presentationUrl=url.replace('index.meta',getTextFromNode(presentationUrls[0])) + docinfo = self.getBibinfoFromTextToolPresentation(presentationUrl,docinfo=docinfo,dom=dom) + docinfo = self.getAuthinfoFromIndexMeta(path,docinfo=docinfo) + return docinfo + + + def getBibinfoFromTextToolPresentation(self,url,docinfo=None,dom=None): + """gets the bibliographical information from the preseantion entry in texttools + """ + dom=self.getPresentationInfoXML(url) + docinfo['author']=getTextFromNode(dom.xpath("//author")[0]) + docinfo['title']=getTextFromNode(dom.xpath("//title")[0]) + docinfo['year']=getTextFromNode(dom.xpath("//date")[0]) + return docinfo + def getDocinfoFromImagePath(self,path,docinfo=None): """path ist the path to the images it assumes that the index.meta file is one level higher.""" - zLOG.LOG("documentViewer (getdocinfofromimagepath)", zLOG.INFO,"path: %s"%(path)) + logger("documentViewer (getdocinfofromimagepath)", logging.INFO,"path: %s"%(path)) if docinfo is None: docinfo = {} path=path.replace("/mpiwg/online","") @@ -359,13 +440,13 @@ class documentViewer(Folder): def getDocinfo(self, mode, url): """returns docinfo depending on mode""" - zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"mode: %s, url: %s"%(mode,url)) + logger("documentViewer (getdocinfo)", logging.INFO,"mode: %s, url: %s"%(mode,url)) # look for cached docinfo in session if self.REQUEST.SESSION.has_key('docinfo'): docinfo = self.REQUEST.SESSION['docinfo'] # check if its still current if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url: - zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo in session: %s"%docinfo) + logger("documentViewer (getdocinfo)", logging.INFO,"docinfo in session: %s"%docinfo) return docinfo # new docinfo docinfo = {'mode': mode, 'url': url} @@ -374,10 +455,10 @@ class documentViewer(Folder): elif mode=="imagepath": docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo) else: - zLOG.LOG("documentViewer (getdocinfo)", zLOG.ERROR,"unknown mode!") + logger("documentViewer (getdocinfo)", logging.ERROR,"unknown mode!") raise ValueError("Unknown mode %s"%(mode)) - zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo: %s"%docinfo) + logger("documentViewer (getdocinfo)", logging.INFO,"docinfo: %s"%docinfo) self.REQUEST.SESSION['docinfo'] = docinfo return docinfo @@ -462,16 +543,25 @@ class documentViewer(Folder): def findDigilibUrl(self): """try to get the digilib URL from zogilib""" url = self.imageViewerUrl[:-1] + "/getScalerUrl" + #print urlparse.urlparse(url)[0] + #print urlparse.urljoin(self.absolute_url(),url) + logging.info("finddigiliburl: %s"%urlparse.urlparse(url)[0]) + logging.info("finddigiliburl: %s"%urlparse.urljoin(self.absolute_url(),url)) + try: + if urlparse.urlparse(url)[0]=='': #relative path + url=urlparse.urljoin(self.absolute_url()+"/",url) + scaler = urlopen(url).read() return scaler.replace("/servlet/Scaler?", "") except: return None - def changeDocumentViewer(self,imageViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,authgroups='mpiwg',RESPONSE=None): + def changeDocumentViewer(self,imageViewerUrl,textViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,authgroups='mpiwg',RESPONSE=None): """init document viewer""" self.title=title self.imageViewerUrl=imageViewerUrl + self.textViewerUrl=textViewerUrl self.digilibBaseUrl = digilibBaseUrl self.thumbrows = thumbrows self.thumbcols = thumbcols @@ -489,9 +579,9 @@ def manage_AddDocumentViewerForm(self): pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self) return pt() -def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None): +def manage_AddDocumentViewer(self,id,imageViewerUrl="",textViewerUrl="",title="",RESPONSE=None): """add the viewer""" - newObj=documentViewer(id,imageViewerUrl,title) + newObj=documentViewer(id,imageViewerUrl,title=title,textViewerUrl=textViewerUrl) self._setObject(id,newObj) if RESPONSE is not None: @@ -517,7 +607,9 @@ def manage_addDocumentViewerTemplate(sel self._setObject(id, DocumentViewerTemplate(id)) ob = getattr(self, id) - ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/viewer_main.zpt')).read(),None) + txt=file(os.path.join(package_home(globals()),'zpt/viewer_main.zpt'),'r').read() + logging.info("txt %s:"%txt) + ob.pt_edit(txt,"text/html") if title: ob.pt_setTitle(title) try: