Annotation of documentViewer/documentViewer.py, revision 1.7
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
1.7 ! casties 17: import sys
1.1 dwinter 18: import cgi
19: import urllib
1.3 casties 20: import zLOG
1.1 dwinter 21:
1.4 casties 22: def getInt(number, default=0):
23: """returns always an int (0 in case of problems)"""
24: try:
25: return int(number)
26: except:
27: return default
28:
29:
1.1 dwinter 30: def getTextFromNode(nodename):
31: nodelist=nodename.childNodes
32: rc = ""
33: for node in nodelist:
34: if node.nodeType == node.TEXT_NODE:
35: rc = rc + node.data
36: return rc
37:
38: import socket
39:
40: def urlopen(url):
41: """urlopen mit timeout"""
42: socket.setdefaulttimeout(2)
43: ret=urllib.urlopen(url)
44: socket.setdefaulttimeout(5)
45: return ret
46:
47:
1.3 casties 48: ##
49: ## documentViewer class
50: ##
51: class documentViewer(Folder):
1.1 dwinter 52: """document viewer"""
53:
54: meta_type="Document viewer"
55:
56: security=ClassSecurityInfo()
1.3 casties 57: manage_options=Folder.manage_options+(
1.1 dwinter 58: {'label':'main config','action':'changeDocumentViewerForm'},
59: )
60:
1.3 casties 61: # templates and forms
62: viewer_main = PageTemplateFile('zpt/viewer_main', globals())
63: thumbs_main = PageTemplateFile('zpt/thumbs_main', globals())
64: image_main = PageTemplateFile('zpt/image_main', globals())
65: head_main = PageTemplateFile('zpt/head_main', globals())
66: docuviewer_css = PageTemplateFile('css/docuviewer.css', globals())
67:
68: security.declareProtected('View management screens','changeDocumentViewerForm')
69: changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals())
70:
1.1 dwinter 71:
1.4 casties 72: def __init__(self,id,imageViewerUrl,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=10):
1.1 dwinter 73: """init document viewer"""
74: self.id=id
75: self.title=title
76: self.imageViewerUrl=imageViewerUrl
1.4 casties 77: if not digilibBaseUrl:
1.3 casties 78: self.digilibBaseUrl = self.findDigilibUrl()
1.4 casties 79: else:
80: self.digilibBaseUrl = digilibBaseUrl
81: self.thumbcols = thumbcols
82: self.thumbrows = thumbrows
1.3 casties 83: # add template folder so we can always use template.something
84: self.manage_addFolder('template')
85:
86:
87: security.declareProtected('View','index_html')
1.4 casties 88: def index_html(self,mode,url,start=None,pn=1):
1.3 casties 89: '''
90: view it
91: @param mode: defines which type of document is behind url
92: @param url: url which contains display information
93: '''
94:
95: zLOG.LOG("documentViewer (index)", zLOG.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn))
1.1 dwinter 96:
1.3 casties 97: if not hasattr(self, 'template'):
98: # create template folder if it doesn't exist
99: self.manage_addFolder('template')
100:
101: if not self.digilibBaseUrl:
102: self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary"
103:
1.4 casties 104: docinfo = self.getDocinfo(mode=mode,url=url)
105: pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo)
1.3 casties 106: pt = getattr(self.template, 'viewer_main')
107: return pt(docinfo=docinfo,pageinfo=pageinfo)
1.1 dwinter 108:
109:
1.4 casties 110: def getLink(self,param=None,val=None):
111: """link to documentviewer with parameter param set to val"""
112: params=cgi.parse_qs(self.REQUEST['QUERY_STRING'])
113: if param is not None:
1.7 ! casties 114: if val is None:
! 115: if params.has_key(param):
! 116: del params[param]
1.4 casties 117: else:
1.7 ! casties 118: params[param] = [str(val)]
! 119:
! 120: ps = "&".join(["%s=%s"%(k,urllib.quote(v[0])) for (k, v) in params.items()])
! 121: url=self.REQUEST['URL']+"?"+ps
! 122: #url=self.REQUEST['URL']+"?"+urllib.urlencode(params, doseq=True)
1.4 casties 123: return url
124:
125:
1.3 casties 126: def getStyle(self, idx, selected, style=""):
1.4 casties 127: """returns a string with the given style and append 'sel' if path == selected."""
1.3 casties 128: #zLOG.LOG("documentViewer (getstyle)", zLOG.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style))
129: if idx == selected:
130: return style + 'sel'
131: else:
132: return style
1.2 dwinter 133:
134:
1.7 ! casties 135: def getDirinfoFromDigilib(self,path,docinfo=None):
1.6 casties 136: """gibt param von dlInfo aus"""
1.7 ! casties 137: if docinfo is None:
! 138: docinfo = {}
! 139:
1.6 casties 140: imageUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path
141:
1.7 ! casties 142: zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo from %s"%(imageUrl))
1.6 casties 143:
144: try:
145: dom = NonvalidatingReader.parseUri(imageUrl)
146: except:
1.7 ! casties 147: zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.ERROR, "error reading %s"%(imageUrl))
! 148: raise IOError("Unable to get dirinfo from %s"%(imageUrl))
1.6 casties 149:
1.7 ! casties 150: params=dom.xpath("//dir/size")
! 151: zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo:size"%params)
1.6 casties 152:
153: if params:
1.7 ! casties 154: docinfo['numPages'] = getTextFromNode(params[0])
! 155: else:
! 156: docinfo['numPages'] = 0
! 157:
! 158: return docinfo
1.6 casties 159:
160:
1.3 casties 161: def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None):
162: """gets bibliographical info from the index.meta file at url or given by dom"""
163: zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path))
1.2 dwinter 164:
1.3 casties 165: if docinfo is None:
166: docinfo = {}
167:
168: if dom is None:
1.7 ! casties 169: server=self.digilibBaseUrl+"/servlet/Texter?fn="
1.3 casties 170: path="/".join(path.split("/")[0:-1])
171: metaUrl=server+path+"/index.meta"
172: try:
173: dom = NonvalidatingReader.parseUri(metaUrl)
174: except:
175: return docinfo
1.2 dwinter 176:
1.4 casties 177: metaData=self.metadata.main.meta.bib
178: bibtype=dom.xpath("//bib/@type")
179: if bibtype and (len(bibtype)>0):
180: bibtype=bibtype[0].value
1.2 dwinter 181: else:
1.4 casties 182: bibtype="generic"
183: bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC)
184: bibmap=metaData.generateMappingForType(bibtype)
1.7 ! casties 185: print "bibmap: ", bibmap, " for: ", bibtype
! 186: if len(bibmap) > 0 and len(bibmap['author'][0]) > 0:
1.4 casties 187: docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0])
188: docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0])
189: docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0])
1.3 casties 190:
191: return docinfo
192:
193:
194: def getDocinfoFromTextTool(self,url,docinfo=None):
195: """parse texttool tag in index meta"""
196: zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.INFO,"url: %s"%(url))
197: if docinfo is None:
198: docinfo = {}
199:
200: try:
201: dom = NonvalidatingReader.parseUri(url)
202: except:
203: zLOG.LOG("documentViewer (parseUrlTexttool)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2])
1.7 ! casties 204: raise IOError("Unable to get texttool info from %s"%(url))
1.3 casties 205:
206: archivePaths=dom.xpath("//resource/archive-path")
207: if archivePaths and (len(archivePaths)>0):
208: archivePath=getTextFromNode(archivePaths[0])
209: else:
210: archivePath=None
211:
212: images=dom.xpath("//texttool/image")
213: if images and (len(images)>0):
214: image=getTextFromNode(images[0])
215: else:
216: image=None
217:
218: if image and archivePath:
219: image=os.path.join(archivePath,image)
220: image=image.replace("/mpiwg/online",'')
1.7 ! casties 221: docinfo=self.getDirinfoFromDigilib(image,docinfo=docinfo)
1.3 casties 222: docinfo['imagePath'] = image
1.7 ! casties 223: docinfo['imageURL'] = self.digilibBaseUrl+"/servlet/Scaler?fn="+image
1.3 casties 224:
225: viewerUrls=dom.xpath("//texttool/digiliburlprefix")
226: if viewerUrls and (len(viewerUrls)>0):
227: viewerUrl=getTextFromNode(viewerUrls[0])
1.7 ! casties 228: docinfo['viewerURL'] = viewerUrl
1.3 casties 229:
230: textUrls=dom.xpath("//texttool/text")
231: if textUrls and (len(textUrls)>0):
232: textUrl=getTextFromNode(textUrls[0])
1.7 ! casties 233: docinfo['textURL'] = textUrl
1.3 casties 234:
235: docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom)
236: return docinfo
237:
238:
239: def getDocinfoFromImagePath(self,path,docinfo=None):
240: """path ist the path to the images it assumes that the index.meta file is one level higher."""
241: zLOG.LOG("documentViewer (getdocinfofromimagepath)", zLOG.INFO,"path: %s"%(path))
242: if docinfo is None:
243: docinfo = {}
1.6 casties 244: path=path.replace("/mpiwg/online","")
1.3 casties 245: docinfo['imagePath'] = path
1.7 ! casties 246: docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo)
! 247: imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path
1.3 casties 248: docinfo['imageURL'] = imageUrl
249:
250: docinfo = self.getBibinfoFromIndexMeta(path,docinfo=docinfo)
251: return docinfo
252:
1.2 dwinter 253:
1.3 casties 254: def getDocinfo(self, mode, url):
255: """returns docinfo depending on mode"""
256: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"mode: %s, url: %s"%(mode,url))
257: # look for cached docinfo in session
258: if self.REQUEST.SESSION.has_key('docinfo'):
259: docinfo = self.REQUEST.SESSION['docinfo']
260: # check if its still current
261: if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url:
262: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo in session: %s"%docinfo)
263: return docinfo
264: # new docinfo
265: docinfo = {'mode': mode, 'url': url}
266: if mode=="texttool": #index.meta with texttool information
267: docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo)
268: elif mode=="imagepath":
269: docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo)
270: else:
271: zLOG.LOG("documentViewer (getdocinfo)", zLOG.ERROR,"unknown mode!")
272: zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo: %s"%docinfo)
273: self.REQUEST.SESSION['docinfo'] = docinfo
274: return docinfo
1.2 dwinter 275:
276:
1.4 casties 277: def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None):
1.3 casties 278: """returns pageinfo with the given parameters"""
279: pageinfo = {}
1.4 casties 280: current = getInt(current)
281: pageinfo['current'] = current
282: rows = int(rows or self.thumbrows)
283: pageinfo['rows'] = rows
284: cols = int(cols or self.thumbcols)
285: pageinfo['cols'] = cols
286: grpsize = cols * rows
287: pageinfo['groupsize'] = grpsize
288: start = getInt(start, default=(int(current / grpsize) * grpsize +1))
1.3 casties 289: pageinfo['start'] = start
1.4 casties 290: pageinfo['end'] = start + grpsize
291: if docinfo is not None:
292: np = int(docinfo['numPages'])
293: pageinfo['end'] = min(pageinfo['end'], np)
294: pageinfo['numgroups'] = int(np / grpsize)
295: if np % grpsize > 0:
296: pageinfo['numgroups'] += 1
297:
1.3 casties 298: return pageinfo
299:
1.1 dwinter 300: def text(self,mode,url,pn):
301: """give text"""
302: if mode=="texttool": #index.meta with texttool information
303: (viewerUrl,imagepath,textpath)=parseUrlTextTool(url)
304:
305: print textpath
306: try:
307: dom = NonvalidatingReader.parseUri(textpath)
308: except:
309: return None
310:
311: list=[]
312: nodes=dom.xpath("//pb")
313:
314: node=nodes[int(pn)-1]
315:
316: p=node
317:
318: while p.tagName!="p":
319: p=p.parentNode
320:
321:
322: endNode=nodes[int(pn)]
323:
324:
325: e=endNode
326:
327: while e.tagName!="p":
328: e=e.parentNode
329:
330:
331: next=node.parentNode
332:
333: #sammle s
334: while next and (next!=endNode.parentNode):
335: list.append(next)
336: next=next.nextSibling
337: list.append(endNode.parentNode)
338:
339: if p==e:# beide im selben paragraphen
1.2 dwinter 340: pass
341: # else:
342: # next=p
343: # while next!=e:
344: # print next,e
345: # list.append(next)
346: # next=next.nextSibling
347: #
348: # for x in list:
349: # PrettyPrint(x)
350: #
351: # return list
1.3 casties 352: #
353:
354: def findDigilibUrl(self):
355: """try to get the digilib URL from zogilib"""
356: url = self.imageViewerUrl[:-1] + "/getScalerUrl"
357: try:
358: scaler = urlopen(url).read()
359: return scaler.replace("/servlet/Scaler?", "")
360: except:
361: return None
362:
1.4 casties 363: def changeDocumentViewer(self,imageViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,RESPONSE=None):
1.3 casties 364: """init document viewer"""
365: self.title=title
366: self.imageViewerUrl=imageViewerUrl
367: self.digilibBaseUrl = digilibBaseUrl
1.4 casties 368: self.thumbrows = thumbrows
369: self.thumbcols = thumbcols
1.1 dwinter 370:
1.3 casties 371: if RESPONSE is not None:
372: RESPONSE.redirect('manage_main')
1.1 dwinter 373:
374:
375:
376:
377: # security.declareProtected('View management screens','renameImageForm')
378:
379: def manage_AddDocumentViewerForm(self):
380: """add the viewer form"""
1.3 casties 381: pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self)
1.1 dwinter 382: return pt()
383:
384: def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None):
385: """add the viewer"""
386: newObj=documentViewer(id,imageViewerUrl,title)
387: self._setObject(id,newObj)
388:
389: if RESPONSE is not None:
390: RESPONSE.redirect('manage_main')
1.3 casties 391:
392:
393: ##
394: ## DocumentViewerTemplate class
395: ##
396: class DocumentViewerTemplate(ZopePageTemplate):
397: """Template for document viewer"""
398: meta_type="DocumentViewer Template"
399:
400:
401: def manage_addDocumentViewerTemplateForm(self):
402: """Form for adding"""
403: pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self)
404: return pt()
405:
406: def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None,
407: REQUEST=None, submit=None):
408: "Add a Page Template with optional file content."
409:
410: self._setObject(id, DocumentViewerTemplate(id))
411: ob = getattr(self, id)
412: ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/viewer_main.zpt')).read(),None)
413: if title:
414: ob.pt_setTitle(title)
415: try:
416: u = self.DestinationURL()
417: except AttributeError:
418: u = REQUEST['URL1']
419:
420: u = "%s/%s" % (u, urllib.quote(id))
421: REQUEST.RESPONSE.redirect(u+'/manage_main')
422: return ''
423:
424:
1.1 dwinter 425:
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