Annotation of documentViewer/documentViewer.py, revision 1.4
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:
1.4 ! casties 21: def getInt(number, default=0):
! 22: """returns always an int (0 in case of problems)"""
! 23: try:
! 24: return int(number)
! 25: except:
! 26: return default
! 27:
! 28:
1.1 dwinter 29: def getTextFromNode(nodename):
30: nodelist=nodename.childNodes
31: rc = ""
32: for node in nodelist:
33: if node.nodeType == node.TEXT_NODE:
34: rc = rc + node.data
35: return rc
36:
37: import socket
38:
39: def urlopen(url):
40: """urlopen mit timeout"""
41: socket.setdefaulttimeout(2)
42: ret=urllib.urlopen(url)
43: socket.setdefaulttimeout(5)
44: return ret
45:
46: def getParamFromDigilib(path,param):
47: """gibt param von dlInfo aus"""
1.3 casties 48: imageUrl=genericDigilib+"/dirInfo-xml.jsp?mo=dir&fn="+path
1.1 dwinter 49:
1.3 casties 50: zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo (%s) from %s"%(param,imageUrl))
51:
1.1 dwinter 52: try:
53: dom = NonvalidatingReader.parseUri(imageUrl)
54: except:
55: return None
56:
1.3 casties 57: params=dom.xpath("//dir/%s"%param)
58: zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo:%s"%params)
1.1 dwinter 59:
60: if params:
1.3 casties 61: return getTextFromNode(params[0])
62:
1.1 dwinter 63:
64:
65:
1.3 casties 66: ##
67: ## documentViewer class
68: ##
69: class documentViewer(Folder):
1.1 dwinter 70: """document viewer"""
71:
72: meta_type="Document viewer"
73:
74: security=ClassSecurityInfo()
1.3 casties 75: manage_options=Folder.manage_options+(
1.1 dwinter 76: {'label':'main config','action':'changeDocumentViewerForm'},
77: )
78:
1.3 casties 79: # templates and forms
80: viewer_main = PageTemplateFile('zpt/viewer_main', globals())
81: thumbs_main = PageTemplateFile('zpt/thumbs_main', globals())
82: image_main = PageTemplateFile('zpt/image_main', globals())
83: head_main = PageTemplateFile('zpt/head_main', globals())
84: docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
85:
86: security.declareProtected('View management screens','changeDocumentViewerForm')
87: changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
88:
1.1 dwinter 89:
1.4 ! casties 90: def __init__(self,id,imageViewerUrl,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=10):
1.1 dwinter 91: """init document viewer"""
92: self.id=id
93: self.title=title
94: self.imageViewerUrl=imageViewerUrl
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
1.3 casties 101: # add template folder so we can always use template.something
102: self.manage_addFolder('template')
103:
104:
105: security.declareProtected('View','index_html')
1.4 ! casties 106: def index_html(self,mode,url,start=None,pn=1):
1.3 casties 107: '''
108: view it
109: @param mode: defines which type of document is behind url
110: @param url: url which contains display information
111: '''
112:
113: zLOG.LOG("documentViewer (index)", zLOG.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
114: print "dlbaseurl:", self.digilibBaseUrl
1.1 dwinter 115:
1.3 casties 116: if not hasattr(self, 'template'):
117: # create template folder if it doesn't exist
118: print "no template folder -- creating"
119: self.manage_addFolder('template')
120:
121: if not self.digilibBaseUrl:
122: self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
123:
124: print "dlbaseurl:", self.digilibBaseUrl
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')
129: return pt(docinfo=docinfo,pageinfo=pageinfo)
1.1 dwinter 130:
131:
1.4 ! casties 132: def getLink(self,param=None,val=None):
! 133: """link to documentviewer with parameter param set to val"""
! 134: params=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
! 135: if param is not None:
! 136: if val is None and params.has_key(param):
! 137: del params[param]
! 138: else:
! 139: params[param] = val
1.1 dwinter 140:
1.4 ! casties 141: url=self.REQUEST['URL']+"?"+urllib.urlencode(params, doseq=True)
! 142: return url
! 143:
! 144:
1.3 casties 145: def getStyle(self, idx, selected, style=""):
1.4 ! casties 146: """returns a string with the given style and append 'sel' if path == selected."""
1.3 casties 147: #zLOG.LOG("documentViewer (getstyle)", zLOG.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
148: if idx == selected:
149: return style + 'sel'
150: else:
151: return style
1.2 dwinter 152:
153:
1.3 casties 154: def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None):
155: """gets bibliographical info from the index.meta file at url or given by dom"""
156: zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path))
1.2 dwinter 157:
1.3 casties 158: if docinfo is None:
159: docinfo = {}
160:
161: if dom is None:
162: server="http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary/servlet/Texter?fn="
163: path="/".join(path.split("/")[0:-1])
164: metaUrl=server+path+"/index.meta"
165: try:
166: dom = NonvalidatingReader.parseUri(metaUrl)
167: except:
168: return docinfo
1.2 dwinter 169:
1.4 ! casties 170: metaData=self.metadata.main.meta.bib
! 171: bibtype=dom.xpath("//bib/@type")
! 172: if bibtype and (len(bibtype)>0):
! 173: bibtype=bibtype[0].value
1.2 dwinter 174: else:
1.4 ! casties 175: bibtype="generic"
! 176: bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
! 177: bibmap=metaData.generateMappingForType(bibtype)
! 178: if len(bibmap) > 0:
! 179: docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
! 180: docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
! 181: docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
1.3 casties 182:
183: return docinfo
184:
185:
186: def getDocinfoFromTextTool(self,url,docinfo=None):
187: """parse texttool tag in index meta"""
188: zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.INFO,"url: %s"%(url))
189: if docinfo is None:
190: docinfo = {}
191:
192: try:
193: dom = NonvalidatingReader.parseUri(url)
194: except:
195: zLOG.LOG("documentViewer (parseUrlTexttool)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
196: return docinfo
197:
198: archivePaths=dom.xpath("//resource/archive-path")
199:
200: if archivePaths and (len(archivePaths)>0):
201: archivePath=getTextFromNode(archivePaths[0])
202: else:
203: archivePath=None
204:
205: images=dom.xpath("//texttool/image")
206:
207: if images and (len(images)>0):
208: image=getTextFromNode(images[0])
209: else:
210: image=None
211:
212: if image and archivePath:
213: image=os.path.join(archivePath,image)
214: image=image.replace("/mpiwg/online",'')
215: pt=getParamFromDigilib(image,'size')
216: docinfo['imagePath'] = image
1.4 ! casties 217: docinfo['numPages'] = pt
1.3 casties 218:
219: viewerUrls=dom.xpath("//texttool/digiliburlprefix")
220:
221: if viewerUrls and (len(viewerUrls)>0):
222: viewerUrl=getTextFromNode(viewerUrls[0])
223: docinfo['imageURL'] = viewerURL
224:
225: textUrls=dom.xpath("//texttool/text")
226:
227: if textUrls and (len(textUrls)>0):
228: textUrl=getTextFromNode(textUrls[0])
229: docinfo['textURL'] = textURL
230:
231: docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)
232: return docinfo
233:
234:
235: def getDocinfoFromImagePath(self,path,docinfo=None):
236: """path ist the path to the images it assumes that the index.meta file is one level higher."""
237: zLOG.LOG("documentViewer (getdocinfofromimagepath)", zLOG.INFO,"path: %s"%(path))
238: if docinfo is None:
239: docinfo = {}
240: docinfo['imagePath'] = path
241: path=path.replace("/mpiwg/online","")
242: pt=getParamFromDigilib(path,'size')
1.4 ! casties 243: docinfo['numPages'] = pt
1.3 casties 244: imageUrl=genericDigilib+"/servlet/Scaler?fn=%s"%path
245: docinfo['imageURL'] = imageUrl
246:
247: docinfo = self.getBibinfoFromIndexMeta(path,docinfo=docinfo)
248: return docinfo
249:
1.2 dwinter 250:
1.3 casties 251: def getDocinfo(self, mode, url):
252: """returns docinfo depending on mode"""
253: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"mode: %s, url: %s"%(mode,url))
254: # look for cached docinfo in session
255: if self.REQUEST.SESSION.has_key('docinfo'):
256: docinfo = self.REQUEST.SESSION['docinfo']
257: # check if its still current
258: if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
259: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo in session: %s"%docinfo)
260: return docinfo
261: # new docinfo
262: docinfo = {'mode': mode, 'url': url}
263: if mode=="texttool": #index.meta with texttool information
264: docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
265: elif mode=="imagepath":
266: docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
267: else:
268: zLOG.LOG("documentViewer (getdocinfo)", zLOG.ERROR,"unknown mode!")
269: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo: %s"%docinfo)
270: self.REQUEST.SESSION['docinfo'] = docinfo
271: return docinfo
1.2 dwinter 272:
273:
1.4 ! casties 274: def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None):
1.3 casties 275: """returns pageinfo with the given parameters"""
276: pageinfo = {}
1.4 ! casties 277: current = getInt(current)
! 278: pageinfo['current'] = current
! 279: rows = int(rows or self.thumbrows)
! 280: pageinfo['rows'] = rows
! 281: cols = int(cols or self.thumbcols)
! 282: pageinfo['cols'] = cols
! 283: grpsize = cols * rows
! 284: pageinfo['groupsize'] = grpsize
! 285: start = getInt(start, default=(int(current / grpsize) * grpsize +1))
! 286: print "start3:", start
1.3 casties 287: pageinfo['start'] = start
1.4 ! casties 288: pageinfo['end'] = start + grpsize
! 289: if docinfo is not None:
! 290: np = int(docinfo['numPages'])
! 291: pageinfo['end'] = min(pageinfo['end'], np)
! 292: pageinfo['numgroups'] = int(np / grpsize)
! 293: if np % grpsize > 0:
! 294: pageinfo['numgroups'] += 1
! 295:
1.3 casties 296: return pageinfo
297:
1.1 dwinter 298: def text(self,mode,url,pn):
299: """give text"""
300: if mode=="texttool": #index.meta with texttool information
301: (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)
302:
303: print textpath
304: try:
305: dom = NonvalidatingReader.parseUri(textpath)
306: except:
307: return None
308:
309: list=[]
310: nodes=dom.xpath("//pb")
311:
312: node=nodes[int(pn)-1]
313:
314: p=node
315:
316: while p.tagName!="p":
317: p=p.parentNode
318:
319:
320: endNode=nodes[int(pn)]
321:
322:
323: e=endNode
324:
325: while e.tagName!="p":
326: e=e.parentNode
327:
328:
329: next=node.parentNode
330:
331: #sammle s
332: while next and (next!=endNode.parentNode):
333: list.append(next)
334: next=next.nextSibling
335: list.append(endNode.parentNode)
336:
337: if p==e:# beide im selben paragraphen
1.2 dwinter 338: pass
339: # else:
340: # next=p
341: # while next!=e:
342: # print next,e
343: # list.append(next)
344: # next=next.nextSibling
345: #
346: # for x in list:
347: # PrettyPrint(x)
348: #
349: # return list
1.3 casties 350: #
351:
352: def findDigilibUrl(self):
353: """try to get the digilib URL from zogilib"""
354: url = self.imageViewerUrl[:-1] + "/getScalerUrl"
355: try:
356: scaler = urlopen(url).read()
357: return scaler.replace("/servlet/Scaler?", "")
358: except:
359: return None
360:
1.4 ! casties 361: def changeDocumentViewer(self,imageViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,RESPONSE=None):
1.3 casties 362: """init document viewer"""
363: self.title=title
364: self.imageViewerUrl=imageViewerUrl
365: self.digilibBaseUrl = digilibBaseUrl
1.4 ! casties 366: self.thumbrows = thumbrows
! 367: self.thumbcols = thumbcols
1.1 dwinter 368:
1.3 casties 369: if RESPONSE is not None:
370: RESPONSE.redirect('manage_main')
1.1 dwinter 371:
372:
373:
374:
375: # security.declareProtected('View management screens','renameImageForm')
376:
377: def manage_AddDocumentViewerForm(self):
378: """add the viewer form"""
1.3 casties 379: pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
1.1 dwinter 380: return pt()
381:
382: def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None):
383: """add the viewer"""
384: newObj=documentViewer(id,imageViewerUrl,title)
385: self._setObject(id,newObj)
386:
387: if RESPONSE is not None:
388: RESPONSE.redirect('manage_main')
1.3 casties 389:
390:
391: ##
392: ## DocumentViewerTemplate class
393: ##
394: class DocumentViewerTemplate(ZopePageTemplate):
395: """Template for document viewer"""
396: meta_type="DocumentViewer Template"
397:
398:
399: def manage_addDocumentViewerTemplateForm(self):
400: """Form for adding"""
401: pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
402: return pt()
403:
404: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
405: REQUEST=None, submit=None):
406: "Add a Page Template with optional file content."
407:
408: self._setObject(id, DocumentViewerTemplate(id))
409: ob = getattr(self, id)
410: ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/viewer_main.zpt')).read(),None)
411: if title:
412: ob.pt_setTitle(title)
413: try:
414: u = self.DestinationURL()
415: except AttributeError:
416: u = REQUEST['URL1']
417:
418: u = "%s/%s" % (u, urllib.quote(id))
419: REQUEST.RESPONSE.redirect(u+'/manage_main')
420: return ''
421:
422:
1.1 dwinter 423:
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