Annotation of documentViewer/documentViewer.py, revision 1.3
1.1 dwinter 1:
2: genericDigilib="http://nausikaa2.rz-berlin.mpg.de/digitallibrary/"
3:
4: from OFS.Folder import Folder
5: from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
6: from Products.PageTemplates.PageTemplateFile import PageTemplateFile
7: from AccessControl import ClassSecurityInfo
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
13:
14: import Ft.Xml.XPath
15:
16: import os.path
17: import cgi
18: import urllib
1.3 ! casties 19: import zLOG
1.1 dwinter 20:
21: def getTextFromNode(nodename):
22: nodelist=nodename.childNodes
23: rc = ""
24: for node in nodelist:
25: if node.nodeType == node.TEXT_NODE:
26: rc = rc + node.data
27: return rc
28:
29: import socket
30:
31: def urlopen(url):
32: """urlopen mit timeout"""
33: socket.setdefaulttimeout(2)
34: ret=urllib.urlopen(url)
35: socket.setdefaulttimeout(5)
36: return ret
37:
38: def getParamFromDigilib(path,param):
39: """gibt param von dlInfo aus"""
1.3 ! casties 40: imageUrl=genericDigilib+"/dirInfo-xml.jsp?mo=dir&fn="+path
1.1 dwinter 41:
1.3 ! casties 42: zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo (%s) from %s"%(param,imageUrl))
! 43:
1.1 dwinter 44: try:
45: dom = NonvalidatingReader.parseUri(imageUrl)
46: except:
47: return None
48:
1.3 ! casties 49: params=dom.xpath("//dir/%s"%param)
! 50: zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo:%s"%params)
1.1 dwinter 51:
52: if params:
1.3 ! casties 53: return getTextFromNode(params[0])
! 54:
1.1 dwinter 55:
56:
57:
1.3 ! casties 58: ##
! 59: ## documentViewer class
! 60: ##
! 61: class documentViewer(Folder):
1.1 dwinter 62: """document viewer"""
63:
64: meta_type="Document viewer"
65:
66: security=ClassSecurityInfo()
1.3 ! casties 67: manage_options=Folder.manage_options+(
1.1 dwinter 68: {'label':'main config','action':'changeDocumentViewerForm'},
69: )
70:
1.3 ! casties 71: # templates and forms
! 72: viewer_main = PageTemplateFile('zpt/viewer_main', globals())
! 73: thumbs_main = PageTemplateFile('zpt/thumbs_main', globals())
! 74: image_main = PageTemplateFile('zpt/image_main', globals())
! 75: head_main = PageTemplateFile('zpt/head_main', globals())
! 76: docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
! 77:
! 78: security.declareProtected('View management screens','changeDocumentViewerForm')
! 79: changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
! 80:
1.1 dwinter 81:
1.3 ! casties 82: def __init__(self,id,imageViewerUrl,title="",digilibBaseUrl=None):
1.1 dwinter 83: """init document viewer"""
84: self.id=id
85: self.title=title
86: self.imageViewerUrl=imageViewerUrl
1.3 ! casties 87: self.digilibBaseUrl = digilibBaseUrl
! 88: if not self.digilibBaseUrl:
! 89: self.digilibBaseUrl = self.findDigilibUrl()
! 90: # add template folder so we can always use template.something
! 91: self.manage_addFolder('template')
! 92:
! 93:
! 94: security.declareProtected('View','index_html')
! 95: def index_html(self,mode,url,start=0,pn=1):
! 96: '''
! 97: view it
! 98: @param mode: defines which type of document is behind url
! 99: @param url: url which contains display information
! 100: '''
! 101:
! 102: zLOG.LOG("documentViewer (index)", zLOG.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
! 103: print "dlbaseurl:", self.digilibBaseUrl
1.1 dwinter 104:
1.3 ! casties 105: if not hasattr(self, 'template'):
! 106: # create template folder if it doesn't exist
! 107: print "no template folder -- creating"
! 108: self.manage_addFolder('template')
! 109:
! 110: if not self.digilibBaseUrl:
! 111: self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
! 112:
! 113: print "dlbaseurl:", self.digilibBaseUrl
! 114:
! 115: docinfo = self.getDocinfo(mode=mode, url=url)
! 116: pageinfo = self.getPageinfo(start=start,current=pn)
! 117: pt = getattr(self.template, 'viewer_main')
! 118: return pt(docinfo=docinfo,pageinfo=pageinfo)
1.1 dwinter 119:
120:
121: def imageLink(self,nr):
122: """link hinter den images"""
123: paramsTmp=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
124: params={}
125: for x in paramsTmp.iteritems():
126: params[x[0]]=x[1][0]
127:
128: params['pn']=nr
129: newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)
130: return newUrl
131:
1.3 ! casties 132: def getStyle(self, idx, selected, style=""):
! 133: """returns a string with the given style + 'sel' if path == selected."""
! 134: #zLOG.LOG("documentViewer (getstyle)", zLOG.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
! 135: if idx == selected:
! 136: return style + 'sel'
! 137: else:
! 138: return style
! 139:
! 140:
1.1 dwinter 141: def thumbruler(self,cols,rows,start,maximum):
142: """ruler for thumbs"""
143: ret=""
144: paramsTmp=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
145: params={}
146: for x in paramsTmp.iteritems():
147:
148: if not x[0]=="start":
149: params[x[0]]=x[1][0]
150:
151: newUrlSelect=self.REQUEST['URL']+"?"+urllib.urlencode(params)
152: if start>0:
153: newStart=max(start-cols*rows,0)
154: params['start']=newStart
155: newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)
156: ret+="""<a href="%s">prev</a>"""%newUrl
157:
158:
1.3 ! casties 159: ret+="""<select onChange="location.href='%s&start='+this.options[this.selectedIndex].value">"""%newUrlSelect
1.1 dwinter 160: nr,rest=divmod(maximum,cols*rows)
161: if rest > 0:
162: nr+=1
163: for i in range(nr):
164: nr=i*cols*rows
165:
166: if (start >= nr) and (start < nr+cols*rows):
167: ret+="""<option value="%s" selected>%s</option>"""%(nr,nr)
168: else:
169: ret+="""<option value="%s">%s</option>"""%(nr,nr)
170: ret+="</select>"
171:
172: if start<maximum:
173: newStart=min(start+cols*rows,maximum)
174: params['start']=newStart
175: newUrl=self.REQUEST['URL']+"?"+urllib.urlencode(params)
176: ret+="""<a href="%s">next</a>"""%newUrl
177:
178: return ret
179:
1.2 dwinter 180:
181:
1.3 ! casties 182: def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None):
! 183: """gets bibliographical info from the index.meta file at url or given by dom"""
! 184: zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path))
1.2 dwinter 185:
1.3 ! casties 186: if docinfo is None:
! 187: docinfo = {}
! 188:
1.2 dwinter 189: metaData=self.metadata.main.meta.bib
1.3 ! casties 190: if dom is None:
! 191: server="http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary/servlet/Texter?fn="
! 192: path="/".join(path.split("/")[0:-1])
! 193: metaUrl=server+path+"/index.meta"
! 194: try:
! 195: dom = NonvalidatingReader.parseUri(metaUrl)
! 196: except:
! 197: return docinfo
1.2 dwinter 198:
199: type=dom.xpath("//bib/@type")
200: if type and (len(type)>0):
201: type=type[0].value
202: else:
203: type="generic"
204: type=type.replace("-"," ")# wrong typesiin index meta "-" instead of " "
205: hash=metaData.generateMappingForType(type)
1.3 ! casties 206:
! 207: docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%hash['author'][0])[0])
! 208: docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%hash['title'][0])[0])
! 209: docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%hash['year'][0])[0])
! 210:
! 211: return docinfo
! 212:
! 213:
! 214: def getDocinfoFromTextTool(self,url,docinfo=None):
! 215: """parse texttool tag in index meta"""
! 216: zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.INFO,"url: %s"%(url))
! 217: if docinfo is None:
! 218: docinfo = {}
! 219:
! 220: try:
! 221: dom = NonvalidatingReader.parseUri(url)
! 222: except:
! 223: zLOG.LOG("documentViewer (parseUrlTexttool)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
! 224: return docinfo
! 225:
! 226: archivePaths=dom.xpath("//resource/archive-path")
! 227:
! 228: if archivePaths and (len(archivePaths)>0):
! 229: archivePath=getTextFromNode(archivePaths[0])
! 230: else:
! 231: archivePath=None
! 232:
! 233: images=dom.xpath("//texttool/image")
! 234:
! 235: if images and (len(images)>0):
! 236: image=getTextFromNode(images[0])
! 237: else:
! 238: image=None
! 239:
! 240: if image and archivePath:
! 241: image=os.path.join(archivePath,image)
! 242: image=image.replace("/mpiwg/online",'')
! 243: pt=getParamFromDigilib(image,'size')
! 244: docinfo['imagePath'] = image
! 245: docinfo['numberOfPages'] = pt
! 246:
! 247: viewerUrls=dom.xpath("//texttool/digiliburlprefix")
! 248:
! 249: if viewerUrls and (len(viewerUrls)>0):
! 250: viewerUrl=getTextFromNode(viewerUrls[0])
! 251: docinfo['imageURL'] = viewerURL
! 252:
! 253: textUrls=dom.xpath("//texttool/text")
! 254:
! 255: if textUrls and (len(textUrls)>0):
! 256: textUrl=getTextFromNode(textUrls[0])
! 257: docinfo['textURL'] = textURL
! 258:
! 259: docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)
! 260: return docinfo
! 261:
! 262:
! 263: def getDocinfoFromImagePath(self,path,docinfo=None):
! 264: """path ist the path to the images it assumes that the index.meta file is one level higher."""
! 265: zLOG.LOG("documentViewer (getdocinfofromimagepath)", zLOG.INFO,"path: %s"%(path))
! 266: if docinfo is None:
! 267: docinfo = {}
! 268: docinfo['imagePath'] = path
! 269: path=path.replace("/mpiwg/online","")
! 270: pt=getParamFromDigilib(path,'size')
! 271: docinfo['numberOfPages'] = pt
! 272: imageUrl=genericDigilib+"/servlet/Scaler?fn=%s"%path
! 273: docinfo['imageURL'] = imageUrl
! 274:
! 275: docinfo = self.getBibinfoFromIndexMeta(path,docinfo=docinfo)
! 276: return docinfo
! 277:
1.2 dwinter 278:
1.3 ! casties 279: def getDocinfo(self, mode, url):
! 280: """returns docinfo depending on mode"""
! 281: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"mode: %s, url: %s"%(mode,url))
! 282: # look for cached docinfo in session
! 283: if self.REQUEST.SESSION.has_key('docinfo'):
! 284: docinfo = self.REQUEST.SESSION['docinfo']
! 285: # check if its still current
! 286: if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
! 287: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo in session: %s"%docinfo)
! 288: return docinfo
! 289: # new docinfo
! 290: docinfo = {'mode': mode, 'url': url}
! 291: if mode=="texttool": #index.meta with texttool information
! 292: docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
! 293: elif mode=="imagepath":
! 294: docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
! 295: else:
! 296: zLOG.LOG("documentViewer (getdocinfo)", zLOG.ERROR,"unknown mode!")
! 297: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo: %s"%docinfo)
! 298: self.REQUEST.SESSION['docinfo'] = docinfo
! 299: return docinfo
1.2 dwinter 300:
301:
1.3 ! casties 302: def getPageinfo(self, start, current):
! 303: """returns pageinfo with the given parameters"""
! 304: pageinfo = {}
! 305: pageinfo['start'] = start
! 306: pageinfo['current'] = current
! 307: return pageinfo
! 308:
1.1 dwinter 309: def text(self,mode,url,pn):
310: """give text"""
311: if mode=="texttool": #index.meta with texttool information
312: (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)
313:
314: print textpath
315: try:
316: dom = NonvalidatingReader.parseUri(textpath)
317: except:
318: return None
319:
320: list=[]
321: nodes=dom.xpath("//pb")
322:
323: node=nodes[int(pn)-1]
324:
325: p=node
326:
327: while p.tagName!="p":
328: p=p.parentNode
329:
330:
331: endNode=nodes[int(pn)]
332:
333:
334: e=endNode
335:
336: while e.tagName!="p":
337: e=e.parentNode
338:
339:
340: next=node.parentNode
341:
342: #sammle s
343: while next and (next!=endNode.parentNode):
344: list.append(next)
345: next=next.nextSibling
346: list.append(endNode.parentNode)
347:
348: if p==e:# beide im selben paragraphen
1.2 dwinter 349: pass
350: # else:
351: # next=p
352: # while next!=e:
353: # print next,e
354: # list.append(next)
355: # next=next.nextSibling
356: #
357: # for x in list:
358: # PrettyPrint(x)
359: #
360: # return list
1.3 ! casties 361: #
! 362:
1.1 dwinter 363: def image(self,mode,url,pn):
364: """give image out"""
365: if mode=="texttool": #index.meta with texttool information
366: (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)
1.2 dwinter 367: if not viewerUrl:
368: viewerUrl=self.imageViewerUrl
1.1 dwinter 369: url=viewerUrl+"pn=%s&fn=%s"%(pn,imagepath[0])
370: ret="""<iframe height="100%%" width="100%%" src="%s"/>"""%url
371: return url
1.2 dwinter 372: elif mode=="imagepath":
373: url=url.replace("/mpiwg/online","")
374: url=self.imageViewerUrl+"pn=%s&fn=%s"%(pn,url)
375: ret="""<iframe height="100%%" width="100%%" src="%s"/>"""%url
376: return url
377:
1.1 dwinter 378:
1.3 ! casties 379: def findDigilibUrl(self):
! 380: """try to get the digilib URL from zogilib"""
! 381: url = self.imageViewerUrl[:-1] + "/getScalerUrl"
! 382: try:
! 383: scaler = urlopen(url).read()
! 384: return scaler.replace("/servlet/Scaler?", "")
! 385: except:
! 386: return None
! 387:
! 388: def changeDocumentViewer(self,imageViewerUrl,title="",digilibBaseUrl=None,RESPONSE=None):
! 389: """init document viewer"""
! 390: self.title=title
! 391: self.imageViewerUrl=imageViewerUrl
! 392: self.digilibBaseUrl = digilibBaseUrl
1.1 dwinter 393:
1.3 ! casties 394: if RESPONSE is not None:
! 395: RESPONSE.redirect('manage_main')
1.1 dwinter 396:
397:
398:
399:
400: # security.declareProtected('View management screens','renameImageForm')
401:
402: def manage_AddDocumentViewerForm(self):
403: """add the viewer form"""
1.3 ! casties 404: pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
1.1 dwinter 405: return pt()
406:
407: def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None):
408: """add the viewer"""
409: newObj=documentViewer(id,imageViewerUrl,title)
410: self._setObject(id,newObj)
411:
412: if RESPONSE is not None:
413: RESPONSE.redirect('manage_main')
1.3 ! casties 414:
! 415:
! 416: ##
! 417: ## DocumentViewerTemplate class
! 418: ##
! 419: class DocumentViewerTemplate(ZopePageTemplate):
! 420: """Template for document viewer"""
! 421: meta_type="DocumentViewer Template"
! 422:
! 423:
! 424: def manage_addDocumentViewerTemplateForm(self):
! 425: """Form for adding"""
! 426: pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
! 427: return pt()
! 428:
! 429: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
! 430: REQUEST=None, submit=None):
! 431: "Add a Page Template with optional file content."
! 432:
! 433: self._setObject(id, DocumentViewerTemplate(id))
! 434: ob = getattr(self, id)
! 435: ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/viewer_main.zpt')).read(),None)
! 436: if title:
! 437: ob.pt_setTitle(title)
! 438: try:
! 439: u = self.DestinationURL()
! 440: except AttributeError:
! 441: u = REQUEST['URL1']
! 442:
! 443: u = "%s/%s" % (u, urllib.quote(id))
! 444: REQUEST.RESPONSE.redirect(u+'/manage_main')
! 445: return ''
! 446:
! 447:
1.1 dwinter 448:
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