File:  [Repository] / zogiLib / zogiLib.py
Revision 1.21: download - view: text, annotated - select for diffs - revision graph
Wed Jun 2 21:53:15 2004 UTC (20 years, 1 month ago) by casties
Branches: MAIN
CVS tags: HEAD
finally working with vlp!

    1: 
    2: from Products.PageTemplates.PageTemplateFile import PageTemplateFile
    3: from Products.PageTemplates.PageTemplate import PageTemplate
    4: from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
    5: from OFS.Image import Image
    6: from webdav.common import rfc1123_date
    7: 
    8: import xml.dom.minidom
    9: from OFS.Folder import Folder
   10: from xml_helpers import getText
   11: import os
   12: import re
   13: import string
   14: import urllib
   15: from Globals import package_home
   16: 
   17: def getString(self,key,default=''):
   18:     try:
   19:         return self.REQUEST[key]
   20:     except:
   21:         return default
   22: 
   23: def sendFile(self, filename, type):
   24:     """sends an object or a local file (in the product) as response"""
   25:     paths = filename.split('/')
   26:     object = self
   27:     # look for an object called filename
   28:     for path in paths:
   29:         if hasattr(object, path):
   30: 	    object = getattr(object, path)
   31: 	else:
   32: 	    object = None
   33: 	    break
   34:     if object:
   35: 	# if the object exists then send it
   36: 	return object.index_html(self.REQUEST.REQUEST, self.REQUEST.RESPONSE)
   37:     else:
   38: 	# send a local file with the given content-type
   39: 	fn = os.path.join(package_home(globals()), filename)
   40: 	self.REQUEST.RESPONSE.setHeader("Content-Type", type)
   41: 	self.REQUEST.RESPONSE.write(file(fn).read())
   42:     return
   43: 
   44: class BrowserCheck:
   45:     """check the browsers request to find out the browser type"""
   46:     
   47:     def __init__(self, zope):
   48: 	self.ua = zope.REQUEST.get_header("HTTP_USER_AGENT")
   49: 	self.isIE = string.find(self.ua, 'MSIE') > -1
   50: 	self.isN4 = (string.find(self.ua, 'Mozilla/4.') > -1) and not self.isIE
   51: 	self.nav = self.ua[string.find(self.ua, '('):]
   52: 	ie = string.split(self.nav, "; ")[1]
   53: 	if string.find(ie, "MSIE") > -1:
   54: 	    self.versIE = string.split(ie, " ")[1]
   55: 	self.isMac = string.find(self.ua, 'Macintosh') > -1
   56: 	self.isWin = string.find(self.ua, 'Windows') > -1
   57: 	self.isIEWin = self.isIE and self.isWin
   58: 	self.isIEMac = self.isIE and self.isMac
   59: 
   60: 
   61: def manage_addZogiLibMainTemplateForm(self):
   62:     """Form for adding"""
   63:     #FIXME:???
   64:     pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/AddOSAS_thumbTemplate.zpt')).__of__(self)
   65:     return pt()
   66: 
   67: 
   68: 
   69: 
   70: def manage_addZogiLibMainTemplate(self, id,title=None, text=None,
   71:                            REQUEST=None, submit=None):
   72:     "Add a Page Template with optional file content."
   73:     #FIXME:???
   74:     id = str(id)
   75:     if REQUEST is None:
   76:         self._setObject(id, zogiLib_mainTemplate(id, text))
   77:         ob = getattr(self, id)
   78:        
   79:         if title:
   80:             ob.pt_setTitle(title)
   81:         return ob
   82:     else:
   83:         file = REQUEST.form.get('file')
   84:         headers = getattr(file, 'headers', None)
   85:         if headers is None or not file.filename:
   86:             zpt = zogiLib_mainTemplate(id)
   87:         else:
   88:             zpt = zogiLib_mainTemplate(id, file, headers.get('content_type'))
   89: 
   90:         self._setObject(id, zpt)
   91:         ob = getattr(self, id)
   92: 
   93: 
   94:         try:
   95:             u = self.DestinationURL()
   96:         except AttributeError:
   97:             u = REQUEST['URL1']
   98: 
   99:         if submit == " Add and Edit ":
  100:             u = "%s/%s" % (u, quote(id))
  101:         REQUEST.RESPONSE.redirect(u+'/manage_main')
  102:     return ''
  103: 
  104:     
  105: class zogiImage(Image):
  106:     """einzelnes Image"""
  107:     meta_type="zogiImage"
  108: 
  109:     manage_options=ZopePageTemplate.manage_options+(
  110:         {'label':'Main config','action':'changeZogiImageForm'},
  111:        )
  112:     
  113:     
  114:     def __init__(self,id,title,baseUrl,queryString,content_type='',precondition=''):
  115:         """init"""
  116:         self.id=id
  117:         self.title=title
  118:         self.baseUrl=baseUrl
  119:         self.queryString=queryString
  120:         self.content_type=content_type
  121:         self.precondition=precondition
  122: 
  123:     def getData(self):
  124:         """getUrlData"""
  125:         return urllib.urlopen(self.baseUrl+self.queryString)
  126: 
  127:     def changeZogiImageForm(self):
  128:         """Main configuration"""
  129:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/changeZogiImageForm.zpt')).__of__(self)
  130:         return pt()
  131:     
  132:     def changeZogiImage(self,title,baseUrl, queryString,RESPONSE=None):
  133:         """change it"""
  134:         self.title=title
  135:         self.baseUrl=baseUrl
  136:         self.queryString=queryString
  137: 
  138:         if RESPONSE is not None:
  139:             RESPONSE.redirect('manage_main')
  140: 
  141:         
  142:     def index_html(self, REQUEST, RESPONSE):
  143:         """
  144:         Modified version of OFS/Image.py
  145:         
  146:         The default view of the contents of a File or Image.
  147: 
  148:         Returns the contents of the file or image.  Also, sets the
  149:         Content-Type HTTP header to the objects content type.
  150:         """
  151: 
  152:         # HTTP If-Modified-Since header handling.
  153:         header=REQUEST.get_header('If-Modified-Since', None)
  154:         if header is not None:
  155:             header=header.split( ';')[0]
  156:             # Some proxies seem to send invalid date strings for this
  157:             # header. If the date string is not valid, we ignore it
  158:             # rather than raise an error to be generally consistent
  159:             # with common servers such as Apache (which can usually
  160:             # understand the screwy date string as a lucky side effect
  161:             # of the way they parse it).
  162:             # This happens to be what RFC2616 tells us to do in the face of an
  163:             # invalid date.
  164:             try:    mod_since=long(DateTime(header).timeTime())
  165:             except: mod_since=None
  166:             if mod_since is not None:
  167:                 if self._p_mtime:
  168:                     last_mod = long(self._p_mtime)
  169:                 else:
  170:                     last_mod = long(0)
  171:                 if last_mod > 0 and last_mod <= mod_since:
  172:                     # Set header values since apache caching will return Content-Length
  173:                     # of 0 in response if size is not set here
  174:                     RESPONSE.setHeader('Last-Modified', rfc1123_date(self._p_mtime))
  175:                     RESPONSE.setHeader('Content-Type', self.content_type)
  176:                     RESPONSE.setHeader('Content-Length', self.size)
  177:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  178:                     self.ZCacheable_set(None)
  179:                     RESPONSE.setStatus(304)
  180:                     return ''
  181: 
  182:         if self.precondition and hasattr(self,self.precondition):
  183:             # Grab whatever precondition was defined and then
  184:             # execute it.  The precondition will raise an exception
  185:             # if something violates its terms.
  186:             c=getattr(self,self.precondition)
  187:             if hasattr(c,'isDocTemp') and c.isDocTemp:
  188:                 c(REQUEST['PARENTS'][1],REQUEST)
  189:             else:
  190:                 c()
  191: 
  192:         # HTTP Range header handling
  193:         range = REQUEST.get_header('Range', None)
  194:         request_range = REQUEST.get_header('Request-Range', None)
  195:         if request_range is not None:
  196:             # Netscape 2 through 4 and MSIE 3 implement a draft version
  197:             # Later on, we need to serve a different mime-type as well.
  198:             range = request_range
  199:         if_range = REQUEST.get_header('If-Range', None)
  200:         if range is not None:
  201:             ranges = HTTPRangeSupport.parseRange(range)
  202: 
  203:             if if_range is not None:
  204:                 # Only send ranges if the data isn't modified, otherwise send
  205:                 # the whole object. Support both ETags and Last-Modified dates!
  206:                 if len(if_range) > 1 and if_range[:2] == 'ts':
  207:                     # ETag:
  208:                     if if_range != self.http__etag():
  209:                         # Modified, so send a normal response. We delete
  210:                         # the ranges, which causes us to skip to the 200
  211:                         # response.
  212:                         ranges = None
  213:                 else:
  214:                     # Date
  215:                     date = if_range.split( ';')[0]
  216:                     try: mod_since=long(DateTime(date).timeTime())
  217:                     except: mod_since=None
  218:                     if mod_since is not None:
  219:                         if self._p_mtime:
  220:                             last_mod = long(self._p_mtime)
  221:                         else:
  222:                             last_mod = long(0)
  223:                         if last_mod > mod_since:
  224:                             # Modified, so send a normal response. We delete
  225:                             # the ranges, which causes us to skip to the 200
  226:                             # response.
  227:                             ranges = None
  228: 
  229:             if ranges:
  230:                 # Search for satisfiable ranges.
  231:                 satisfiable = 0
  232:                 for start, end in ranges:
  233:                     if start < self.size:
  234:                         satisfiable = 1
  235:                         break
  236: 
  237:                 if not satisfiable:
  238:                     RESPONSE.setHeader('Content-Range',
  239:                         'bytes */%d' % self.size)
  240:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  241:                     RESPONSE.setHeader('Last-Modified',
  242:                         rfc1123_date(self._p_mtime))
  243:                     RESPONSE.setHeader('Content-Type', self.content_type)
  244:                     RESPONSE.setHeader('Content-Length', self.size)
  245:                     RESPONSE.setStatus(416)
  246:                     return ''
  247: 
  248:                 ranges = HTTPRangeSupport.expandRanges(ranges, self.size)
  249:                                 
  250:                 if len(ranges) == 1:
  251:                     # Easy case, set extra header and return partial set.
  252:                     start, end = ranges[0]
  253:                     size = end - start
  254: 
  255:                     RESPONSE.setHeader('Last-Modified',
  256:                         rfc1123_date(self._p_mtime))
  257:                     RESPONSE.setHeader('Content-Type', self.content_type)
  258:                     RESPONSE.setHeader('Content-Length', size)
  259:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  260:                     RESPONSE.setHeader('Content-Range',
  261:                         'bytes %d-%d/%d' % (start, end - 1, self.size))
  262:                     RESPONSE.setStatus(206) # Partial content
  263: 
  264:                     data = urllib.urlopen(self.baseUrl+self.queryString).read()
  265:                     if type(data) is StringType:
  266:                         return data[start:end]
  267: 
  268:                     # Linked Pdata objects. Urgh.
  269:                     pos = 0
  270:                     while data is not None:
  271:                         l = len(data.data)
  272:                         pos = pos + l
  273:                         if pos > start:
  274:                             # We are within the range
  275:                             lstart = l - (pos - start)
  276: 
  277:                             if lstart < 0: lstart = 0
  278: 
  279:                             # find the endpoint
  280:                             if end <= pos:
  281:                                 lend = l - (pos - end)
  282: 
  283:                                 # Send and end transmission
  284:                                 RESPONSE.write(data[lstart:lend])
  285:                                 break
  286: 
  287:                             # Not yet at the end, transmit what we have.
  288:                             RESPONSE.write(data[lstart:])
  289: 
  290:                         data = data.next
  291: 
  292:                     return ''
  293: 
  294:                 else:
  295:                     boundary = choose_boundary()
  296: 
  297:                     # Calculate the content length
  298:                     size = (8 + len(boundary) + # End marker length
  299:                         len(ranges) * (         # Constant lenght per set
  300:                             49 + len(boundary) + len(self.content_type) +
  301:                             len('%d' % self.size)))
  302:                     for start, end in ranges:
  303:                         # Variable length per set
  304:                         size = (size + len('%d%d' % (start, end - 1)) +
  305:                             end - start)
  306: 
  307: 
  308:                     # Some clients implement an earlier draft of the spec, they
  309:                     # will only accept x-byteranges.
  310:                     draftprefix = (request_range is not None) and 'x-' or ''
  311: 
  312:                     RESPONSE.setHeader('Content-Length', size)
  313:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  314:                     RESPONSE.setHeader('Last-Modified',
  315:                         rfc1123_date(self._p_mtime))
  316:                     RESPONSE.setHeader('Content-Type',
  317:                         'multipart/%sbyteranges; boundary=%s' % (
  318:                             draftprefix, boundary))
  319:                     RESPONSE.setStatus(206) # Partial content
  320: 
  321:                     data = urllib.urlopen(self.baseUrl+self.queryString).read()
  322:                     # The Pdata map allows us to jump into the Pdata chain
  323:                     # arbitrarily during out-of-order range searching.
  324:                     pdata_map = {}
  325:                     pdata_map[0] = data
  326: 
  327:                     for start, end in ranges:
  328:                         RESPONSE.write('\r\n--%s\r\n' % boundary)
  329:                         RESPONSE.write('Content-Type: %s\r\n' %
  330:                             self.content_type)
  331:                         RESPONSE.write(
  332:                             'Content-Range: bytes %d-%d/%d\r\n\r\n' % (
  333:                                 start, end - 1, self.size))
  334: 
  335:                         if type(data) is StringType:
  336:                             RESPONSE.write(data[start:end])
  337: 
  338:                         else:
  339:                             # Yippee. Linked Pdata objects. The following
  340:                             # calculations allow us to fast-forward through the
  341:                             # Pdata chain without a lot of dereferencing if we
  342:                             # did the work already.
  343:                             first_size = len(pdata_map[0].data)
  344:                             if start < first_size:
  345:                                 closest_pos = 0
  346:                             else:
  347:                                 closest_pos = (
  348:                                     ((start - first_size) >> 16 << 16) +
  349:                                     first_size)
  350:                             pos = min(closest_pos, max(pdata_map.keys()))
  351:                             data = pdata_map[pos]
  352: 
  353:                             while data is not None:
  354:                                 l = len(data.data)
  355:                                 pos = pos + l
  356:                                 if pos > start:
  357:                                     # We are within the range
  358:                                     lstart = l - (pos - start)
  359: 
  360:                                     if lstart < 0: lstart = 0
  361: 
  362:                                     # find the endpoint
  363:                                     if end <= pos:
  364:                                         lend = l - (pos - end)
  365: 
  366:                                         # Send and loop to next range
  367:                                         RESPONSE.write(data[lstart:lend])
  368:                                         break
  369: 
  370:                                     # Not yet at the end, transmit what we have.
  371:                                     RESPONSE.write(data[lstart:])
  372: 
  373:                                 data = data.next
  374:                                 # Store a reference to a Pdata chain link so we
  375:                                 # don't have to deref during this request again.
  376:                                 pdata_map[pos] = data
  377: 
  378:                     # Do not keep the link references around.
  379:                     del pdata_map
  380: 
  381:                     RESPONSE.write('\r\n--%s--\r\n' % boundary)
  382:                     return ''
  383: 
  384:         RESPONSE.setHeader('Last-Modified', rfc1123_date(self._p_mtime))
  385:         RESPONSE.setHeader('Content-Type', self.content_type)
  386:         RESPONSE.setHeader('Content-Length', self.size)
  387:         RESPONSE.setHeader('Accept-Ranges', 'bytes')
  388: 
  389:         # Don't cache the data itself, but provide an opportunity
  390:         # for a cache manager to set response headers.
  391:         self.ZCacheable_set(None)
  392: 
  393:         data=urllib.urlopen(self.baseUrl+self.queryString).read()
  394:         
  395:         if type(data) is type(''): 
  396:             RESPONSE.setBase(None)
  397:             return data
  398: 
  399:         while data is not None:
  400:             RESPONSE.write(data.data)
  401:             data=data.next
  402: 
  403:         return ''
  404: 
  405: 
  406: def manage_addZogiImageForm(self):
  407:     """Form for adding"""
  408:     pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/addZogiImage.zpt')).__of__(self)
  409:     return pt()
  410: 
  411: 
  412: def manage_addZogiImage(self,id,title,baseUrl, queryString,RESPONSE=None):
  413:     """add dgilib"""
  414:     newObj=zogiImage(id,title,baseUrl, queryString)
  415:     self.Destination()._setObject(id,newObj)
  416:     if RESPONSE is not None:
  417:         RESPONSE.redirect('manage_main')
  418: 
  419: 
  420: 
  421: class zogiLib(Folder):
  422:     """StandardElement"""
  423: 
  424:     meta_type="zogiLib"
  425: 
  426:     manage_options = Folder.manage_options+(
  427:             {'label':'Main Config','action':'changeZogiLibForm'},
  428:             )
  429: 
  430:     def __init__(self, id, title, digilibBaseUrl, localFileBase, version="book", basePath=""):
  431:         """init"""
  432: 
  433:         self.id=id
  434:         self.title=title
  435:         self.digilibBaseUrl=digilibBaseUrl
  436:         self.localFileBase=localFileBase
  437:         self.basePath=basePath
  438:         self.layout=version
  439: 
  440: 
  441:     def getDLInfo(self):
  442:         """get DLInfo from digilib server"""
  443:         paramH={}
  444:         baseUrl=re.sub("servlet/Scaler","dlInfo-xml.jsp",self.digilibBaseUrl)
  445:         try:
  446:             url=urllib.urlopen(baseUrl+self.REQUEST['QUERY_STRING'])
  447:             dom=xml.dom.minidom.parse(url)
  448:             params=dom.getElementsByTagName('parameter')
  449:             for param in params:
  450:                 paramH[param.getAttribute('name')]=param.getAttribute('value')
  451:             return paramH
  452:         except:
  453:             return null
  454: 
  455: 
  456:     def createHeadJS(self):
  457:         """generate all javascript tags for head"""
  458:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/zogilib_head_js')).__of__(self)
  459:         return pt()
  460: 
  461:     def createParamJS(self):
  462:         """generate javascript for parameters only"""
  463:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/zogilib_param_js')).__of__(self)
  464:         return pt()
  465:         
  466:                         
  467:     def createScalerImg(self, requestString = None, bottom = 0, side = 0):
  468:         """generate Scaler IMG Tag"""
  469: 	self.checkQuery()
  470: 	bt = self.REQUEST.SESSION['browserType']
  471:         if not requestString:
  472:             requestString = self.getAllDLParams()
  473:         url = self.digilibBaseUrl+requestString
  474:         tag = ""
  475:         if bt.isN4:
  476:             tag += '<ilayer id="scaler">'
  477:         else:
  478:             tag += '<div id="scaler">'
  479:         tag += '<script type="text/javascript">'
  480:         tag += "var ps = bestPicSize(getElement('scaler'));"
  481:         b_par = ""
  482:         s_par = ""
  483:         if (bottom != 0) or (side != 0):
  484:             b_par = "-" + str(int(bottom))
  485:             s_par = "-" + str(int(side))
  486:         tag += 'document.write(\'<img id="pic" src="%s&dw=\'+(ps.width%s)+\'&dh=\'+(ps.height%s)+\'" />\')'%(url, s_par, b_par)
  487:         tag += '</script>'
  488:         if bt.isN4:
  489:             tag += '</ilayer>'
  490:         else:
  491:             tag += '</div>'
  492:         return tag
  493: 
  494:     def createAuxDiv(self):
  495:         """generate other divs"""
  496: 	self.checkQuery()
  497: 	bt = self.REQUEST.SESSION['browserType']
  498:         if bt.isN4:
  499:             f = 'zpt/zogilib_divsN4.zpt'
  500:         else:
  501:             f = 'zpt/zogilib_divs.zpt'
  502:         pt=PageTemplateFile(os.path.join(package_home(globals()),f)).__of__(self)
  503:         return pt()
  504: 
  505: 
  506:     def option_js(self):
  507:         """option_js"""
  508:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/option_js')).__of__(self)
  509:         return pt()
  510: 
  511:     def dl_lib_js(self):
  512:         """javascript"""
  513:         return sendFile(self, 'js/dl_lib.js', 'text/plain')
  514: 
  515:     def js_lib_js(self):
  516:         """javascript"""
  517:         return sendFile(self, 'js/js_lib.js', 'text/plain')
  518: 
  519:     def optionwindow(self):
  520:         """showoptions"""
  521:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/optionwindow.zpt')).__of__(self)
  522:         return pt()
  523: 
  524:     def mark1(self):
  525:         """mark image"""
  526:         return sendFile(self, 'images/mark1.gif', 'image/gif')
  527: 
  528:     def mark2(self):
  529:         """mark image"""
  530:         return sendFile(self, 'images/mark2.gif', 'image/gif')
  531: 
  532:     def mark3(self):
  533:         """mark image"""
  534:         return sendFile(self, 'images/mark3.gif', 'image/gif')
  535: 
  536:     def mark4(self):
  537:         """mark image"""
  538:         return sendFile(self, 'images/mark4.gif', 'image/gif')
  539: 
  540:     def mark5(self):
  541:         """mark image"""
  542:         return sendFile(self, 'images/mark5.gif', 'image/gif')
  543: 
  544:     def mark6(self):
  545:         """mark image"""
  546:         return sendFile(self, 'images/mark6.gif', 'image/gif')
  547: 
  548:     def mark7(self):
  549:         """mark image"""
  550:         return sendFile(self, 'images/mark7.gif', 'image/gif')
  551: 
  552:     def mark8(self):
  553:         """mark image"""
  554:         return sendFile(self, 'images/mark8.gif', 'image/gif')
  555: 
  556:     def corner1(self):
  557:         """mark image"""
  558:         return sendFile(self, 'images/olinks.gif', 'image/gif')
  559: 
  560:     def corner2(self):
  561:         """mark image"""
  562:         return sendFile(self, 'images/orechts.gif', 'image/gif')
  563: 
  564:     def corner3(self):
  565:         """mark image"""
  566:         return sendFile(self, 'images/ulinks.gif', 'image/gif')
  567: 
  568:     def corner4(self):
  569:         """mark image"""
  570:         return sendFile(self, 'images/urechts.gif', 'image/gif')
  571: 
  572: 
  573: 
  574:             
  575:     def index_html(self):
  576:         """main action"""
  577:         tp = "zogiLibMainTemplate"
  578:         if hasattr(self, tp):
  579: 	    pt = getattr(self, tp)
  580:         else:
  581:             pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/zogiLibMain_%s'%self.layout)).__of__(self)
  582:         return pt()
  583: 
  584: 
  585: 
  586:     def storeQuery(self, more = None):
  587:         """storeQuery in session"""
  588:         dlParams = {}
  589:         for fm in self.REQUEST.form.keys():
  590:             dlParams[fm] = self.REQUEST.form[fm]
  591:         # look for more
  592:         if more:
  593:             for fm in more.split('&'):
  594:                 try:
  595:                     pv = fm.split('=')
  596:                     dlParams[pv[0]] = pv[1]
  597:                 except:
  598:                     print "ouch!"
  599:         # parse digilib mode parameter
  600:         if 'mo' in dlParams:
  601:             if len(dlParams['mo']) > 0:
  602:                 modes=dlParams['mo'].split(',')
  603:         else:
  604:             modes=[]
  605: 
  606:         self.REQUEST.SESSION['query'] = dlParams
  607:         self.REQUEST.SESSION['dlModes'] = modes
  608:         self.REQUEST.SESSION['dlInfo'] = self.getDLInfo()
  609:         self.REQUEST.SESSION['browserType'] = BrowserCheck(self)
  610: 
  611:     def checkQuery(self):
  612: 	"""check if the query has been stored"""
  613: 	if not (self.REQUEST.SESSION):
  614: 	    print "ZOGILIB: have to store query!!"
  615: 	    storeQuery(self)
  616:         
  617:     def getDLParam(self,param):
  618:         """returns parameter"""
  619:         try:
  620:             return self.REQUEST.SESSION['query'][param]
  621:         except:
  622:             return None
  623: 
  624:     def setDLParam(self, param, value):
  625:         """sets parameter"""
  626:         self.REQUEST.SESSION['query'][param] = value
  627:         return
  628: 
  629:     def getAllDLParams(self):
  630:         """parameter string for digilib"""
  631:         dlParams = self.REQUEST.SESSION['query']
  632:         # save modes
  633:         modes = self.REQUEST.SESSION['dlModes']
  634:         dlParams['mo'] = string.join(modes, ',')
  635:         # assemble query string
  636:         ret = ""
  637:         for param in dlParams.keys():
  638:             val = str(dlParams[param])
  639:             if val != "":
  640:                 ret += param + "=" + val + "&"
  641:         # omit trailing "&"
  642:         return ret.rstrip('&')
  643: 
  644:         
  645:     def setDLParams(self,pn=None,ws=None,rot=None,brgt=None,cont=None):
  646:         """setze Parameter"""
  647:         ret=""
  648: 
  649:         if brgt:
  650:             self.setDLParam('brgt', brgt)
  651: 
  652:         if cont:
  653:             self.setDLParam('cont', cont)
  654: 
  655:         if pn:
  656:             # unmark
  657:             self.setDLParam('mk', None)
  658:             self.setDLParam('pn', pn)
  659: 
  660:         if ws:
  661:             self.setDLParam('ws', ws)
  662: 
  663:         if rot:
  664:             self.setDLParam('rot', rot)
  665:             
  666:         return self.display()
  667: 
  668: 
  669:     def display(self):
  670:         """(re)display page"""
  671:         params = self.getAllDLParams()
  672:         if self.basePath:
  673:             self.REQUEST.RESPONSE.redirect(self.REQUEST['URL2']+'?'+params)
  674:         else:
  675:             self.REQUEST.RESPONSE.redirect(self.REQUEST['URL1']+'?'+params)
  676: 
  677:     def getPT(self):
  678:         """pagenums"""
  679:         di = self.REQUEST.SESSION['dlInfo']
  680:         if di:
  681:             return int(di['pt'])
  682:         else:
  683:             return 1
  684:     
  685:     def getPN(self):
  686:         """Pagenum"""
  687:         pn = self.getDLParam('pn')
  688:         if pn:
  689:             return int(pn)
  690:         else:
  691:             return 1
  692: 
  693:     def getBiggerWS(self):
  694:         """ws+1"""
  695:         ws=self.getDLParam('ws')
  696:         if ws:
  697:             return int(ws)+1
  698:         else:
  699:             return 2
  700: 
  701:         
  702:     def getSmallerWS(self):
  703:         """ws-1"""
  704:         ws=self.getDLParam('ws')
  705:         if ws:
  706:             if int(ws)==1:
  707:                 return 1
  708:             else:
  709:                 return int(ws)-1
  710:         else:
  711:             return 1
  712: 
  713:     def hasMode(self, mode):
  714:         """returns if mode is in the diglib mo parameter"""
  715:         return (mode in self.REQUEST.SESSION['dlModes'])
  716: 
  717:     def hasNextPage(self):
  718:         """returns if there is a next page"""
  719:         pn = self.getPN()
  720:         pt = self.getPT()
  721:         return (pn < pt)
  722:    
  723:     def hasPrevPage(self):
  724:         """returns if there is a previous page"""
  725:         pn = self.getPN()
  726:         return (pn > 1)
  727: 
  728:    
  729:         
  730:     def dl_HMirror(self):
  731:         """mirror action"""
  732:         modes = self.REQUEST.SESSION['dlModes']
  733:         if 'hmir' in modes:
  734:             modes.remove('hmir')
  735:         else:
  736:             modes.append('hmir')
  737: 
  738:         return self.display()
  739:        
  740:     def dl_VMirror(self):
  741:         """mirror action"""
  742:         modes = self.REQUEST.SESSION['dlModes']
  743:         if 'vmir' in modes:
  744:             modes.remove('vmir')
  745:         else:
  746:             modes.append('vmir')
  747: 
  748:         return self.display()
  749: 
  750:     def dl_WholePage(self):
  751:         """zoom out action"""
  752:         self.setDLParam('ww', 1)
  753:         self.setDLParam('wh', 1)
  754:         self.setDLParam('wx', 0)
  755:         self.setDLParam('wy', 0)
  756:         return self.display()
  757:         
  758:     def dl_PrevPage(self):
  759:         """next page action"""
  760:         pn = self.getPN() - 1
  761:         if pn < 1:
  762:             pn = 1
  763:         self.setDLParam('pn', pn)
  764:         # unmark
  765:         self.setDLParam('mk', None)
  766:         return self.display()
  767:         
  768:     def dl_NextPage(self):
  769:         """next page action"""
  770:         pn = self.getPN() + 1
  771:         pt = self.getPT()
  772:         if pn > pt:
  773:             pn = pt
  774:         self.setDLParam('pn', pn)
  775:         # unmark
  776:         self.setDLParam('mk', None)
  777:         return self.display()
  778: 
  779:     def dl_FirstPage(self):
  780:         """first page action"""
  781:         self.setDLParam('pn', 1)
  782:         # unmark
  783:         self.setDLParam('mk', None)
  784:         return self.display()
  785:     
  786:     def dl_LastPage(self):
  787:         """last page action"""
  788:         self.setDLParam('pn', self.getPT())
  789:         # unmark
  790:         self.setDLParam('mk', None)
  791:         return self.display()
  792: 
  793:     def dl_Unmark(self):
  794:         """action to remove last mark"""
  795:         mk = self.getDLParam('mk')
  796:         if mk:
  797:             marks = mk.split(',')
  798:             marks.pop()
  799:             mk = string.join(marks, ',')
  800:             self.setDLParam('mk', mk)
  801:         return self.display()
  802: 
  803: 
  804: 
  805:     def changeZogiLibForm(self):
  806:         """Main configuration"""
  807:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/changeZogiLibForm.zpt')).__of__(self)
  808:         return pt()
  809:     
  810:     def changeZogiLib(self,title,digilibBaseUrl, localFileBase, version, basePath, RESPONSE=None):
  811:         """change it"""
  812:         self.title=title
  813:         self.digilibBaseUrl=digilibBaseUrl
  814:         self.localFileBase=localFileBase
  815:         self.basePath = basePath
  816:         self.layout=version
  817: 
  818:         if RESPONSE is not None:
  819:             RESPONSE.redirect('manage_main')
  820: 
  821:           
  822: def manage_addZogiLibForm(self):
  823:     """interface for adding zogilib"""
  824:     pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/addZogiLibForm')).__of__(self)
  825:     return pt()
  826: 
  827: def manage_addZogiLib(self,id,title,digilibBaseUrl, localFileBase,version="book",basePath="",RESPONSE=None):
  828:     """add dgilib"""
  829:     newObj=zogiLib(id,title,digilibBaseUrl, localFileBase, version, basePath)
  830:     self.Destination()._setObject(id,newObj)
  831:     if RESPONSE is not None:
  832:         RESPONSE.redirect('manage_main')

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>