Annotation of documentViewer/documentViewer.py, revision 1.5
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:
1.4 casties 124: docinfo = self.getDocinfo(mode=mode,url=url)
125: pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
1.3 casties 126: pt = getattr(self.template, 'viewer_main')
127: return pt(docinfo=docinfo,pageinfo=pageinfo)
1.1 dwinter 128:
129:
1.4 casties 130: def getLink(self,param=None,val=None):
131: """link to documentviewer with parameter param set to val"""
132: params=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
133: if param is not None:
134: if val is None and params.has_key(param):
135: del params[param]
136: else:
137: params[param] = val
1.1 dwinter 138:
1.4 casties 139: url=self.REQUEST['URL']+"?"+urllib.urlencode(params, doseq=True)
140: return url
141:
142:
1.3 casties 143: def getStyle(self, idx, selected, style=""):
1.4 casties 144: """returns a string with the given style and append 'sel' if path == selected."""
1.3 casties 145: #zLOG.LOG("documentViewer (getstyle)", zLOG.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
146: if idx == selected:
147: return style + 'sel'
148: else:
149: return style
1.2 dwinter 150:
151:
1.3 casties 152: def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None):
153: """gets bibliographical info from the index.meta file at url or given by dom"""
154: zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path))
1.2 dwinter 155:
1.3 casties 156: if docinfo is None:
157: docinfo = {}
158:
159: if dom is None:
160: server="http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary/servlet/Texter?fn="
161: path="/".join(path.split("/")[0:-1])
162: metaUrl=server+path+"/index.meta"
163: try:
164: dom = NonvalidatingReader.parseUri(metaUrl)
165: except:
166: return docinfo
1.2 dwinter 167:
1.4 casties 168: metaData=self.metadata.main.meta.bib
169: bibtype=dom.xpath("//bib/@type")
170: if bibtype and (len(bibtype)>0):
171: bibtype=bibtype[0].value
1.2 dwinter 172: else:
1.4 casties 173: bibtype="generic"
174: bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
175: bibmap=metaData.generateMappingForType(bibtype)
176: if len(bibmap) > 0:
177: docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
178: docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
179: docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
1.3 casties 180:
181: return docinfo
182:
183:
184: def getDocinfoFromTextTool(self,url,docinfo=None):
185: """parse texttool tag in index meta"""
186: zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.INFO,"url: %s"%(url))
187: if docinfo is None:
188: docinfo = {}
189:
190: try:
191: dom = NonvalidatingReader.parseUri(url)
192: except:
193: zLOG.LOG("documentViewer (parseUrlTexttool)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
194: return docinfo
195:
196: archivePaths=dom.xpath("//resource/archive-path")
197:
198: if archivePaths and (len(archivePaths)>0):
199: archivePath=getTextFromNode(archivePaths[0])
200: else:
201: archivePath=None
202:
203: images=dom.xpath("//texttool/image")
204:
205: if images and (len(images)>0):
206: image=getTextFromNode(images[0])
207: else:
208: image=None
209:
210: if image and archivePath:
211: image=os.path.join(archivePath,image)
212: image=image.replace("/mpiwg/online",'')
213: pt=getParamFromDigilib(image,'size')
214: docinfo['imagePath'] = image
1.4 casties 215: docinfo['numPages'] = pt
1.3 casties 216:
217: viewerUrls=dom.xpath("//texttool/digiliburlprefix")
218:
219: if viewerUrls and (len(viewerUrls)>0):
220: viewerUrl=getTextFromNode(viewerUrls[0])
221: docinfo['imageURL'] = viewerURL
222:
223: textUrls=dom.xpath("//texttool/text")
224:
225: if textUrls and (len(textUrls)>0):
226: textUrl=getTextFromNode(textUrls[0])
227: docinfo['textURL'] = textURL
228:
229: docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)
230: return docinfo
231:
232:
233: def getDocinfoFromImagePath(self,path,docinfo=None):
234: """path ist the path to the images it assumes that the index.meta file is one level higher."""
235: zLOG.LOG("documentViewer (getdocinfofromimagepath)", zLOG.INFO,"path: %s"%(path))
236: if docinfo is None:
237: docinfo = {}
238: docinfo['imagePath'] = path
239: path=path.replace("/mpiwg/online","")
240: pt=getParamFromDigilib(path,'size')
1.4 casties 241: docinfo['numPages'] = pt
1.3 casties 242: imageUrl=genericDigilib+"/servlet/Scaler?fn=%s"%path
243: docinfo['imageURL'] = imageUrl
244:
245: docinfo = self.getBibinfoFromIndexMeta(path,docinfo=docinfo)
246: return docinfo
247:
1.2 dwinter 248:
1.3 casties 249: def getDocinfo(self, mode, url):
250: """returns docinfo depending on mode"""
251: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"mode: %s, url: %s"%(mode,url))
252: # look for cached docinfo in session
253: if self.REQUEST.SESSION.has_key('docinfo'):
254: docinfo = self.REQUEST.SESSION['docinfo']
255: # check if its still current
256: if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
257: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo in session: %s"%docinfo)
258: return docinfo
259: # new docinfo
260: docinfo = {'mode': mode, 'url': url}
261: if mode=="texttool": #index.meta with texttool information
262: docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
263: elif mode=="imagepath":
264: docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
265: else:
266: zLOG.LOG("documentViewer (getdocinfo)", zLOG.ERROR,"unknown mode!")
267: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo: %s"%docinfo)
268: self.REQUEST.SESSION['docinfo'] = docinfo
269: return docinfo
1.2 dwinter 270:
271:
1.4 casties 272: def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None):
1.3 casties 273: """returns pageinfo with the given parameters"""
274: pageinfo = {}
1.4 casties 275: current = getInt(current)
276: pageinfo['current'] = current
277: rows = int(rows or self.thumbrows)
278: pageinfo['rows'] = rows
279: cols = int(cols or self.thumbcols)
280: pageinfo['cols'] = cols
281: grpsize = cols * rows
282: pageinfo['groupsize'] = grpsize
283: start = getInt(start, default=(int(current / grpsize) * grpsize +1))
284: print "start3:", start
1.3 casties 285: pageinfo['start'] = start
1.4 casties 286: pageinfo['end'] = start + grpsize
287: if docinfo is not None:
288: np = int(docinfo['numPages'])
289: pageinfo['end'] = min(pageinfo['end'], np)
290: pageinfo['numgroups'] = int(np / grpsize)
291: if np % grpsize > 0:
292: pageinfo['numgroups'] += 1
293:
1.3 casties 294: return pageinfo
295:
1.1 dwinter 296: def text(self,mode,url,pn):
297: """give text"""
298: if mode=="texttool": #index.meta with texttool information
299: (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)
300:
301: print textpath
302: try:
303: dom = NonvalidatingReader.parseUri(textpath)
304: except:
305: return None
306:
307: list=[]
308: nodes=dom.xpath("//pb")
309:
310: node=nodes[int(pn)-1]
311:
312: p=node
313:
314: while p.tagName!="p":
315: p=p.parentNode
316:
317:
318: endNode=nodes[int(pn)]
319:
320:
321: e=endNode
322:
323: while e.tagName!="p":
324: e=e.parentNode
325:
326:
327: next=node.parentNode
328:
329: #sammle s
330: while next and (next!=endNode.parentNode):
331: list.append(next)
332: next=next.nextSibling
333: list.append(endNode.parentNode)
334:
335: if p==e:# beide im selben paragraphen
1.2 dwinter 336: pass
337: # else:
338: # next=p
339: # while next!=e:
340: # print next,e
341: # list.append(next)
342: # next=next.nextSibling
343: #
344: # for x in list:
345: # PrettyPrint(x)
346: #
347: # return list
1.3 casties 348: #
349:
350: def findDigilibUrl(self):
351: """try to get the digilib URL from zogilib"""
352: url = self.imageViewerUrl[:-1] + "/getScalerUrl"
353: try:
354: scaler = urlopen(url).read()
355: return scaler.replace("/servlet/Scaler?", "")
356: except:
357: return None
358:
1.4 casties 359: def changeDocumentViewer(self,imageViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,RESPONSE=None):
1.3 casties 360: """init document viewer"""
361: self.title=title
362: self.imageViewerUrl=imageViewerUrl
363: self.digilibBaseUrl = digilibBaseUrl
1.4 casties 364: self.thumbrows = thumbrows
365: self.thumbcols = thumbcols
1.1 dwinter 366:
1.3 casties 367: if RESPONSE is not None:
368: RESPONSE.redirect('manage_main')
1.1 dwinter 369:
370:
371:
372:
373: # security.declareProtected('View management screens','renameImageForm')
374:
375: def manage_AddDocumentViewerForm(self):
376: """add the viewer form"""
1.3 casties 377: pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
1.1 dwinter 378: return pt()
379:
380: def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None):
381: """add the viewer"""
382: newObj=documentViewer(id,imageViewerUrl,title)
383: self._setObject(id,newObj)
384:
385: if RESPONSE is not None:
386: RESPONSE.redirect('manage_main')
1.3 casties 387:
388:
389: ##
390: ## DocumentViewerTemplate class
391: ##
392: class DocumentViewerTemplate(ZopePageTemplate):
393: """Template for document viewer"""
394: meta_type="DocumentViewer Template"
395:
396:
397: def manage_addDocumentViewerTemplateForm(self):
398: """Form for adding"""
399: pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
400: return pt()
401:
402: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
403: REQUEST=None, submit=None):
404: "Add a Page Template with optional file content."
405:
406: self._setObject(id, DocumentViewerTemplate(id))
407: ob = getattr(self, id)
408: ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/viewer_main.zpt')).read(),None)
409: if title:
410: ob.pt_setTitle(title)
411: try:
412: u = self.DestinationURL()
413: except AttributeError:
414: u = REQUEST['URL1']
415:
416: u = "%s/%s" % (u, urllib.quote(id))
417: REQUEST.RESPONSE.redirect(u+'/manage_main')
418: return ''
419:
420:
1.1 dwinter 421:
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