File:  [Repository] / zogiLib / zogiLib.py
Revision 1.31: download - view: text, annotated - select for diffs - revision graph
Fri Jul 16 13:47:50 2004 UTC (20 years ago) by dwinter
Branches: MAIN
CVS tags: HEAD
optionfeld nun konfigurierbar

    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: import types
   16: from Globals import package_home
   17: 
   18: ZOGIVERSION = "0.9.5 ROC:25.6.2004"
   19: 
   20: def cropf(f):
   21:     """returns a float with reduced precision"""
   22:     return float(int(f * 10000)/10000.0)
   23: 
   24: 
   25: def sendFile(self, filename, type):
   26:     """sends an object or a local file (in the product) as response"""
   27:     paths = filename.split('/')
   28:     object = self
   29:     # look for an object called filename
   30:     for path in paths:
   31:         if hasattr(object, path):
   32: 	    object = getattr(object, path)
   33: 	else:
   34: 	    object = None
   35: 	    break
   36:     if object:
   37: 	# if the object exists then send it
   38: 	return object.index_html(self.REQUEST.REQUEST, self.REQUEST.RESPONSE)
   39:     else:
   40: 	# send a local file with the given content-type
   41: 	fn = os.path.join(package_home(globals()), filename)
   42: 	self.REQUEST.RESPONSE.setHeader("Content-Type", type)
   43: 	self.REQUEST.RESPONSE.write(file(fn).read())
   44:     return
   45: 
   46: def browserCheck(self):
   47:     """check the browsers request to find out the browser type"""
   48:     bt = {}
   49:     ua = self.REQUEST.get_header("HTTP_USER_AGENT")
   50:     bt['ua'] = ua
   51:     bt['isIE'] = string.find(ua, 'MSIE') > -1
   52:     bt['isN4'] = (string.find(ua, 'Mozilla/4.') > -1) and not bt['isIE']
   53:     nav = ua[string.find(ua, '('):]
   54:     ie = string.split(nav, "; ")[1]
   55:     if string.find(ie, "MSIE") > -1:
   56:         bt['versIE'] = string.split(ie, " ")[1]
   57:     bt['isMac'] = string.find(ua, 'Macintosh') > -1
   58:     bt['isWin'] = string.find(ua, 'Windows') > -1
   59:     bt['isIEWin'] = bt['isIE'] and bt['isWin']
   60:     bt['isIEMac'] = bt['isIE'] and bt['isMac']
   61:     bt['staticHTML'] = False
   62: 
   63:     return bt
   64: 
   65:     
   66: class zogiImage(Image):
   67:     """einzelnes Image"""
   68:     meta_type="zogiImage"
   69: 
   70:     manage_options=ZopePageTemplate.manage_options+(
   71:         {'label':'Main config','action':'changeZogiImageForm'},
   72:        )
   73:     
   74:     
   75:     def __init__(self,id,title,baseUrl,queryString,content_type='',precondition=''):
   76:         """init"""
   77:         self.id=id
   78:         self.title=title
   79:         self.baseUrl=baseUrl
   80:         self.queryString=queryString
   81:         self.content_type=content_type
   82:         self.precondition=precondition
   83: 
   84:     def getData(self):
   85:         """getUrlData"""
   86:         return urllib.urlopen(self.baseUrl+self.queryString)
   87: 
   88:     def changeZogiImageForm(self):
   89:         """Main configuration"""
   90:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/changeZogiImageForm.zpt')).__of__(self)
   91:         return pt()
   92:     
   93:     def changeZogiImage(self,title,baseUrl, queryString,RESPONSE=None):
   94:         """change it"""
   95:         self.title=title
   96:         self.baseUrl=baseUrl
   97:         self.queryString=queryString
   98: 
   99:         if RESPONSE is not None:
  100:             RESPONSE.redirect('manage_main')
  101: 
  102:         
  103:     def index_html(self, REQUEST, RESPONSE):
  104:         """
  105:         Modified version of OFS/Image.py
  106:         
  107:         The default view of the contents of a File or Image.
  108: 
  109:         Returns the contents of the file or image.  Also, sets the
  110:         Content-Type HTTP header to the objects content type.
  111:         """
  112: 
  113:         # HTTP If-Modified-Since header handling.
  114:         header=REQUEST.get_header('If-Modified-Since', None)
  115:         if header is not None:
  116:             header=header.split( ';')[0]
  117:             # Some proxies seem to send invalid date strings for this
  118:             # header. If the date string is not valid, we ignore it
  119:             # rather than raise an error to be generally consistent
  120:             # with common servers such as Apache (which can usually
  121:             # understand the screwy date string as a lucky side effect
  122:             # of the way they parse it).
  123:             # This happens to be what RFC2616 tells us to do in the face of an
  124:             # invalid date.
  125:             try:    mod_since=long(DateTime(header).timeTime())
  126:             except: mod_since=None
  127:             if mod_since is not None:
  128:                 if self._p_mtime:
  129:                     last_mod = long(self._p_mtime)
  130:                 else:
  131:                     last_mod = long(0)
  132:                 if last_mod > 0 and last_mod <= mod_since:
  133:                     # Set header values since apache caching will return Content-Length
  134:                     # of 0 in response if size is not set here
  135:                     RESPONSE.setHeader('Last-Modified', rfc1123_date(self._p_mtime))
  136:                     RESPONSE.setHeader('Content-Type', self.content_type)
  137:                     RESPONSE.setHeader('Content-Length', self.size)
  138:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  139:                     self.ZCacheable_set(None)
  140:                     RESPONSE.setStatus(304)
  141:                     return ''
  142: 
  143:         if self.precondition and hasattr(self,self.precondition):
  144:             # Grab whatever precondition was defined and then
  145:             # execute it.  The precondition will raise an exception
  146:             # if something violates its terms.
  147:             c=getattr(self,self.precondition)
  148:             if hasattr(c,'isDocTemp') and c.isDocTemp:
  149:                 c(REQUEST['PARENTS'][1],REQUEST)
  150:             else:
  151:                 c()
  152: 
  153:         # HTTP Range header handling
  154:         range = REQUEST.get_header('Range', None)
  155:         request_range = REQUEST.get_header('Request-Range', None)
  156:         if request_range is not None:
  157:             # Netscape 2 through 4 and MSIE 3 implement a draft version
  158:             # Later on, we need to serve a different mime-type as well.
  159:             range = request_range
  160:         if_range = REQUEST.get_header('If-Range', None)
  161:         if range is not None:
  162:             ranges = HTTPRangeSupport.parseRange(range)
  163: 
  164:             if if_range is not None:
  165:                 # Only send ranges if the data isn't modified, otherwise send
  166:                 # the whole object. Support both ETags and Last-Modified dates!
  167:                 if len(if_range) > 1 and if_range[:2] == 'ts':
  168:                     # ETag:
  169:                     if if_range != self.http__etag():
  170:                         # Modified, so send a normal response. We delete
  171:                         # the ranges, which causes us to skip to the 200
  172:                         # response.
  173:                         ranges = None
  174:                 else:
  175:                     # Date
  176:                     date = if_range.split( ';')[0]
  177:                     try: mod_since=long(DateTime(date).timeTime())
  178:                     except: mod_since=None
  179:                     if mod_since is not None:
  180:                         if self._p_mtime:
  181:                             last_mod = long(self._p_mtime)
  182:                         else:
  183:                             last_mod = long(0)
  184:                         if last_mod > mod_since:
  185:                             # Modified, so send a normal response. We delete
  186:                             # the ranges, which causes us to skip to the 200
  187:                             # response.
  188:                             ranges = None
  189: 
  190:             if ranges:
  191:                 # Search for satisfiable ranges.
  192:                 satisfiable = 0
  193:                 for start, end in ranges:
  194:                     if start < self.size:
  195:                         satisfiable = 1
  196:                         break
  197: 
  198:                 if not satisfiable:
  199:                     RESPONSE.setHeader('Content-Range',
  200:                         'bytes */%d' % self.size)
  201:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  202:                     RESPONSE.setHeader('Last-Modified',
  203:                         rfc1123_date(self._p_mtime))
  204:                     RESPONSE.setHeader('Content-Type', self.content_type)
  205:                     RESPONSE.setHeader('Content-Length', self.size)
  206:                     RESPONSE.setStatus(416)
  207:                     return ''
  208: 
  209:                 ranges = HTTPRangeSupport.expandRanges(ranges, self.size)
  210:                                 
  211:                 if len(ranges) == 1:
  212:                     # Easy case, set extra header and return partial set.
  213:                     start, end = ranges[0]
  214:                     size = end - start
  215: 
  216:                     RESPONSE.setHeader('Last-Modified',
  217:                         rfc1123_date(self._p_mtime))
  218:                     RESPONSE.setHeader('Content-Type', self.content_type)
  219:                     RESPONSE.setHeader('Content-Length', size)
  220:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  221:                     RESPONSE.setHeader('Content-Range',
  222:                         'bytes %d-%d/%d' % (start, end - 1, self.size))
  223:                     RESPONSE.setStatus(206) # Partial content
  224: 
  225:                     data = urllib.urlopen(self.baseUrl+self.queryString).read()
  226:                     if type(data) is StringType:
  227:                         return data[start:end]
  228: 
  229:                     # Linked Pdata objects. Urgh.
  230:                     pos = 0
  231:                     while data is not None:
  232:                         l = len(data.data)
  233:                         pos = pos + l
  234:                         if pos > start:
  235:                             # We are within the range
  236:                             lstart = l - (pos - start)
  237: 
  238:                             if lstart < 0: lstart = 0
  239: 
  240:                             # find the endpoint
  241:                             if end <= pos:
  242:                                 lend = l - (pos - end)
  243: 
  244:                                 # Send and end transmission
  245:                                 RESPONSE.write(data[lstart:lend])
  246:                                 break
  247: 
  248:                             # Not yet at the end, transmit what we have.
  249:                             RESPONSE.write(data[lstart:])
  250: 
  251:                         data = data.next
  252: 
  253:                     return ''
  254: 
  255:                 else:
  256:                     boundary = choose_boundary()
  257: 
  258:                     # Calculate the content length
  259:                     size = (8 + len(boundary) + # End marker length
  260:                         len(ranges) * (         # Constant lenght per set
  261:                             49 + len(boundary) + len(self.content_type) +
  262:                             len('%d' % self.size)))
  263:                     for start, end in ranges:
  264:                         # Variable length per set
  265:                         size = (size + len('%d%d' % (start, end - 1)) +
  266:                             end - start)
  267: 
  268: 
  269:                     # Some clients implement an earlier draft of the spec, they
  270:                     # will only accept x-byteranges.
  271:                     draftprefix = (request_range is not None) and 'x-' or ''
  272: 
  273:                     RESPONSE.setHeader('Content-Length', size)
  274:                     RESPONSE.setHeader('Accept-Ranges', 'bytes')
  275:                     RESPONSE.setHeader('Last-Modified',
  276:                         rfc1123_date(self._p_mtime))
  277:                     RESPONSE.setHeader('Content-Type',
  278:                         'multipart/%sbyteranges; boundary=%s' % (
  279:                             draftprefix, boundary))
  280:                     RESPONSE.setStatus(206) # Partial content
  281: 
  282:                     data = urllib.urlopen(self.baseUrl+self.queryString).read()
  283:                     # The Pdata map allows us to jump into the Pdata chain
  284:                     # arbitrarily during out-of-order range searching.
  285:                     pdata_map = {}
  286:                     pdata_map[0] = data
  287: 
  288:                     for start, end in ranges:
  289:                         RESPONSE.write('\r\n--%s\r\n' % boundary)
  290:                         RESPONSE.write('Content-Type: %s\r\n' %
  291:                             self.content_type)
  292:                         RESPONSE.write(
  293:                             'Content-Range: bytes %d-%d/%d\r\n\r\n' % (
  294:                                 start, end - 1, self.size))
  295: 
  296:                         if type(data) is StringType:
  297:                             RESPONSE.write(data[start:end])
  298: 
  299:                         else:
  300:                             # Yippee. Linked Pdata objects. The following
  301:                             # calculations allow us to fast-forward through the
  302:                             # Pdata chain without a lot of dereferencing if we
  303:                             # did the work already.
  304:                             first_size = len(pdata_map[0].data)
  305:                             if start < first_size:
  306:                                 closest_pos = 0
  307:                             else:
  308:                                 closest_pos = (
  309:                                     ((start - first_size) >> 16 << 16) +
  310:                                     first_size)
  311:                             pos = min(closest_pos, max(pdata_map.keys()))
  312:                             data = pdata_map[pos]
  313: 
  314:                             while data is not None:
  315:                                 l = len(data.data)
  316:                                 pos = pos + l
  317:                                 if pos > start:
  318:                                     # We are within the range
  319:                                     lstart = l - (pos - start)
  320: 
  321:                                     if lstart < 0: lstart = 0
  322: 
  323:                                     # find the endpoint
  324:                                     if end <= pos:
  325:                                         lend = l - (pos - end)
  326: 
  327:                                         # Send and loop to next range
  328:                                         RESPONSE.write(data[lstart:lend])
  329:                                         break
  330: 
  331:                                     # Not yet at the end, transmit what we have.
  332:                                     RESPONSE.write(data[lstart:])
  333: 
  334:                                 data = data.next
  335:                                 # Store a reference to a Pdata chain link so we
  336:                                 # don't have to deref during this request again.
  337:                                 pdata_map[pos] = data
  338: 
  339:                     # Do not keep the link references around.
  340:                     del pdata_map
  341: 
  342:                     RESPONSE.write('\r\n--%s--\r\n' % boundary)
  343:                     return ''
  344: 
  345:         RESPONSE.setHeader('Last-Modified', rfc1123_date(self._p_mtime))
  346:         RESPONSE.setHeader('Content-Type', self.content_type)
  347:         RESPONSE.setHeader('Content-Length', self.size)
  348:         RESPONSE.setHeader('Accept-Ranges', 'bytes')
  349: 
  350:         # Don't cache the data itself, but provide an opportunity
  351:         # for a cache manager to set response headers.
  352:         self.ZCacheable_set(None)
  353: 
  354:         data=urllib.urlopen(self.baseUrl+self.queryString).read()
  355:         
  356:         if type(data) is type(''): 
  357:             RESPONSE.setBase(None)
  358:             return data
  359: 
  360:         while data is not None:
  361:             RESPONSE.write(data.data)
  362:             data=data.next
  363: 
  364:         return ''
  365: 
  366: 
  367: def manage_addZogiImageForm(self):
  368:     """Form for adding"""
  369:     pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/addZogiImage.zpt')).__of__(self)
  370:     return pt()
  371: 
  372: 
  373: def manage_addZogiImage(self,id,title,baseUrl, queryString,RESPONSE=None):
  374:     """add dgilib"""
  375:     newObj=zogiImage(id,title,baseUrl, queryString)
  376:     self.Destination()._setObject(id,newObj)
  377:     if RESPONSE is not None:
  378:         RESPONSE.redirect('manage_main')
  379: 
  380: 
  381: 
  382: class zogiLib(Folder):
  383:     """StandardElement"""
  384: 
  385:     meta_type="zogiLib"
  386: 
  387:     manage_options = Folder.manage_options+(
  388:             {'label':'Main Config','action':'changeZogiLibForm'},
  389:             )
  390: 
  391:     def __init__(self, id, title, digilibBaseUrl, localFileBase, version="book", basePath="", dlTarget=None):
  392:         """init"""
  393: 
  394:         self.id=id
  395:         self.title=title
  396:         self.digilibBaseUrl=digilibBaseUrl
  397:         self.localFileBase=localFileBase
  398:         self.basePath=basePath
  399:         self.layout=version
  400:         if dlTarget:
  401:             self.dlTarget = dlTarget
  402:         else:
  403:             self.dlTarget = "digilib"
  404: 
  405:     def version(self):
  406:         """version information"""
  407:         return ZOGIVERSION
  408: 
  409:     def getDLInfo(self):
  410:         """get DLInfo from digilib server"""
  411:         paramH={}
  412:         baseUrl=re.sub("servlet/Scaler","dlInfo-xml.jsp",self.digilibBaseUrl)
  413:         try:
  414:             url=urllib.urlopen(baseUrl+self.REQUEST['QUERY_STRING'])
  415:             dom=xml.dom.minidom.parse(url)
  416:             params=dom.getElementsByTagName('parameter')
  417:             for param in params:
  418:                 paramH[param.getAttribute('name')]=param.getAttribute('value')
  419:             return paramH
  420:         except:
  421:             return null
  422: 
  423: 
  424:     def createHeadJS(self):
  425:         """generate all javascript tags for head"""
  426: 	self.checkQuery()
  427: 	bt = self.REQUEST.SESSION['browserType']
  428:         if bt['staticHTML']:
  429:             return
  430:         
  431:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/zogilib_head_js')).__of__(self)
  432:         return pt()
  433: 
  434:     def createParamJS(self):
  435:         """generate javascript for parameters only"""
  436: 	self.checkQuery()
  437: 	bt = self.REQUEST.SESSION['browserType']
  438:         if bt['staticHTML']:
  439:             return
  440: 
  441:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/zogilib_param_js')).__of__(self)
  442:         return pt()
  443:         
  444:                         
  445:     def createScalerImg(self, requestString=None, bottom=0, side=0, width=500, height=500):
  446:         """generate Scaler IMG Tag"""
  447: 	self.checkQuery()
  448: 	bt = self.REQUEST.SESSION['browserType']
  449:         # override with parameters from session
  450:         if  self.REQUEST.SESSION.has_key('scalerDiv'):
  451:             (requestString, bottom, side, width, height) = self.REQUEST.SESSION['scalerDiv']
  452:         # if not explicitly defined take normal request
  453:         if not requestString:
  454:             requestString = self.getAllDLParams()
  455:         url = self.digilibBaseUrl+requestString
  456:         # construct bottom and side insets
  457:         b_par = ""
  458:         s_par = ""
  459:         if (bottom != 0) or (side != 0):
  460:             b_par = "-" + str(int(bottom))
  461:             s_par = "-" + str(int(side))
  462:         tag = ""
  463:         if bt['staticHTML']:
  464:             tag += '<div id="scaler"><img id="pic" src="%s&dw=%i&dh=%i" /></div>'%(url, int(width-side), int(height-bottom))
  465:         else:
  466:             if bt['isN4']:
  467:                 # N4 needs layers
  468:                 tag += '<ilayer id="scaler">'
  469:             else:
  470:                 tag += '<div id="scaler">'
  471:             tag += '<script type="text/javascript">'
  472:             tag += "var ps = bestPicSize(getElement('scaler'));"
  473:             # write img tag with javascript
  474:             tag += 'document.write(\'<img id="pic" src="%s&dw=\'+(ps.width%s)+\'&dh=\'+(ps.height%s)+\'" />\');'%(url, s_par, b_par)
  475:             tag += '</script>'
  476:             if bt['isN4']:
  477:                 tag += '</ilayer>'
  478:             else:
  479:                 tag += '</div>'
  480:         return tag
  481: 
  482:     def createScalerDiv(self, requestString = None, bottom = 0, side = 0, width=500, height=500):
  483:         """generate scaler img and table with navigation arrows"""
  484: 	self.checkQuery()
  485:         if requestString != None or bottom != 0 or side != 0:
  486:             self.REQUEST.SESSION['scalerDiv'] = (requestString, bottom, side, width, height)
  487:         else:
  488:             if self.REQUEST.SESSION.has_key('scalerDiv'):
  489:                 # make shure to remove unused parameter
  490:                 del self.REQUEST.SESSION['scalerDiv']
  491:                 
  492:         pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt/zogilib_img_div')).__of__(self)
  493:         return pt()
  494: 
  495:     def createAuxDiv(self):
  496:         """generate other divs"""
  497: 	self.checkQuery()
  498: 	bt = self.REQUEST.SESSION['browserType']
  499:         if bt['staticHTML']:
  500:             return
  501:         if bt['isN4']:
  502:             f = 'zpt/zogilib_divsN4.zpt'
  503:         else:
  504:             f = 'zpt/zogilib_divs.zpt'
  505:         pt=PageTemplateFile(os.path.join(package_home(globals()),f)).__of__(self)
  506:         return pt()
  507: 
  508: 
  509:     def option_js(self):
  510:         """javascript"""
  511:         return sendFile(self, 'js/option.js', 'text/plain')
  512: 
  513:     def dl_lib_js(self):
  514:         """javascript"""
  515:         return sendFile(self, 'js/dl_lib.js', 'text/plain')
  516: 
  517:     def js_lib_js(self):
  518:         """javascript"""
  519:         return sendFile(self, 'js/js_lib.js', 'text/plain')
  520: 
  521:     def optionwindow(self):
  522:         """showoptions"""
  523: 	self.checkQuery()
  524: 	bt = self.REQUEST.SESSION['browserType']
  525:         if bt['staticHTML']:
  526:             pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/optionwindow_static.zpt')).__of__(self)
  527:         else:
  528: 	    finds=self.ZopeFind(self,obj_ids=['viewingTools.zpt'])
  529: 	    if finds:
  530:                 
  531: 		return finds[0][1]()
  532: 	    else:
  533:                 pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/optionwindow.zpt')).__of__(self)
  534:                 return pt()
  535: 
  536:     def mark1(self):
  537:         """mark image"""
  538:         return sendFile(self, 'images/mark1.gif', 'image/gif')
  539: 
  540:     def mark2(self):
  541:         """mark image"""
  542:         return sendFile(self, 'images/mark2.gif', 'image/gif')
  543: 
  544:     def mark3(self):
  545:         """mark image"""
  546:         return sendFile(self, 'images/mark3.gif', 'image/gif')
  547: 
  548:     def mark4(self):
  549:         """mark image"""
  550:         return sendFile(self, 'images/mark4.gif', 'image/gif')
  551: 
  552:     def mark5(self):
  553:         """mark image"""
  554:         return sendFile(self, 'images/mark5.gif', 'image/gif')
  555: 
  556:     def mark6(self):
  557:         """mark image"""
  558:         return sendFile(self, 'images/mark6.gif', 'image/gif')
  559: 
  560:     def mark7(self):
  561:         """mark image"""
  562:         return sendFile(self, 'images/mark7.gif', 'image/gif')
  563: 
  564:     def mark8(self):
  565:         """mark image"""
  566:         return sendFile(self, 'images/mark8.gif', 'image/gif')
  567: 
  568:     def corner1(self):
  569:         """mark image"""
  570:         return sendFile(self, 'images/olinks.gif', 'image/gif')
  571: 
  572:     def corner2(self):
  573:         """mark image"""
  574:         return sendFile(self, 'images/orechts.gif', 'image/gif')
  575: 
  576:     def corner3(self):
  577:         """mark image"""
  578:         return sendFile(self, 'images/ulinks.gif', 'image/gif')
  579: 
  580:     def corner4(self):
  581:         """mark image"""
  582:         return sendFile(self, 'images/urechts.gif', 'image/gif')
  583: 
  584:     def up_img(self):
  585:         """mark image"""
  586:         return sendFile(self, 'images/up.gif', 'image/gif')
  587: 
  588:     def down_img(self):
  589:         """mark image"""
  590:         return sendFile(self, 'images/down.gif', 'image/gif')
  591: 
  592:     def left_img(self):
  593:         """mark image"""
  594:         return sendFile(self, 'images/left.gif', 'image/gif')
  595: 
  596:     def right_img(self):
  597:         """mark image"""
  598:         return sendFile(self, 'images/right.gif', 'image/gif')
  599: 
  600: 
  601:             
  602:     def index_html(self):
  603:         """main action"""
  604: 	self.checkQuery()
  605: 	bt = self.REQUEST.SESSION['browserType']
  606:         tp = "zogiLibMainTemplate"
  607:         if hasattr(self, tp):
  608: 	    pt = getattr(self, tp)
  609:         else:
  610:             tpt = self.layout
  611:             if bt['staticHTML']:
  612:                 tpt = "static"
  613:                 
  614:             pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/zogiLibMain_%s'%tpt)).__of__(self)
  615:             
  616:         return pt()
  617: 
  618: 
  619: 
  620:     def storeQuery(self, more = None):
  621:         """storeQuery in session"""
  622:         dlParams = {}
  623:         for fm in self.REQUEST.form.keys():
  624:             dlParams[fm] = self.REQUEST.form[fm]
  625:         # look for more
  626:         if more:
  627:             for fm in more.split('&'):
  628:                 try:
  629:                     pv = fm.split('=')
  630:                     dlParams[pv[0]] = pv[1]
  631:                 except:
  632:                     pass
  633:                 
  634:         # parse digilib mode parameter
  635:         if 'mo' in dlParams:
  636:             if len(dlParams['mo']) > 0:
  637:                 modes=dlParams['mo'].split(',')
  638:         else:
  639:             modes=[]
  640: 
  641:         self.REQUEST.SESSION['query'] = dlParams
  642:         self.REQUEST.SESSION['dlModes'] = modes
  643:         self.REQUEST.SESSION['dlInfo'] = self.getDLInfo()
  644:         if not self.REQUEST.SESSION.has_key('browserType'):
  645:             self.REQUEST.SESSION['browserType'] = browserCheck(self)
  646:             
  647:         return
  648: 
  649:     def checkQuery(self):
  650: 	"""check if the query has been stored"""
  651: 	if not (self.REQUEST.SESSION and self.REQUEST.SESSION.has_key('query')) :
  652: 	    print "ZOGILIB: have to store query!!"
  653: 	    self.storeQuery()
  654:         return
  655: 
  656:     def zogilibPath(self, otherbase=None):
  657:         """returns an URL to the zogiLib instance"""
  658:         url = self.REQUEST['URL1']
  659:         # should end with "/"
  660:         if len(url) > 0 and url[-1] != '/':
  661:             url += '/'
  662:         if type(otherbase) is str:
  663:             url += otherbase
  664:         else:
  665:             url += self.basePath
  666:         # should end with "/"
  667:         if len(url) > 0 and url[-1] != '/':
  668:             url += '/'
  669:         return url
  670:         
  671:     def getDLParam(self, param):
  672:         """returns parameter"""
  673:         try:
  674:             return self.REQUEST.SESSION['query'][param]
  675:         except:
  676:             return
  677: 
  678:     def setDLParam(self, param, value):
  679:         """sets parameter"""
  680:         self.REQUEST.SESSION['query'][param] = value
  681:         return
  682: 
  683:     def getAllDLParams(self):
  684:         """parameter string for digilib"""
  685:         dlParams = self.REQUEST.SESSION['query']
  686:         # save modes
  687:         modes = self.REQUEST.SESSION['dlModes']
  688:         dlParams['mo'] = string.join(modes, ',')
  689:         # assemble query string
  690:         ret = ""
  691:         for param in dlParams.keys():
  692:             if dlParams[param] is None: continue
  693:             val = str(dlParams[param])
  694:             if val != "":
  695:                 ret += param + "=" + val + "&"
  696: 
  697:         # omit trailing "&"
  698:         return ret.rstrip('&')
  699: 
  700:         
  701:     def setDLParams(self,pn=None,ws=None,rot=None,brgt=None,cont=None):
  702:         """setze Parameter"""
  703: 
  704:         self.setDLParam('brgt', brgt)
  705:         self.setDLParam('cont', cont)
  706:         self.setDLParam('ws', ws)
  707:         self.setDLParam('rot', rot)
  708: 
  709:         if pn:
  710:             # unmark
  711:             self.setDLParam('mk', None)
  712:             self.setDLParam('pn', pn)
  713:             
  714:         return self.display()
  715: 
  716: 
  717:     def display(self):
  718:         """(re)display page"""
  719:         params = self.getAllDLParams()
  720:         if self.basePath:
  721:             self.REQUEST.RESPONSE.redirect(self.REQUEST['URL2']+'?'+params)
  722:         else:
  723:             self.REQUEST.RESPONSE.redirect(self.REQUEST['URL1']+'?'+params)
  724: 
  725: 
  726:     def getDLTarget(self):
  727:         """returns dlTarget"""
  728:         self.checkQuery()
  729:         s = self.dlTarget
  730: #         s = 'dl'
  731: #         if self.getDLParam('fn'):
  732: #             s += "_" + self.getDLParam('fn')
  733: #         if self.getDLParam('pn'):
  734: #             s += "_" + self.getDLParam('pn')
  735:         return s
  736: 
  737:     def setStaticHTML(self, static=True):
  738:         """sets the preference to static HTML"""
  739:         self.checkQuery()
  740:  	self.REQUEST.SESSION['browserType']['staticHTML'] = static
  741:         return
  742: 
  743:     def isStaticHTML(self):
  744:         """returns if the page is using static HTML only"""
  745:         self.checkQuery()
  746: 	return self.REQUEST.SESSION['browserType']['staticHTML']
  747: 
  748:     def getPT(self):
  749:         """pagenums"""
  750:         di = self.REQUEST.SESSION['dlInfo']
  751:         if di:
  752:             return int(di['pt'])
  753:         else:
  754:             return 1
  755:     
  756:     def getPN(self):
  757:         """Pagenum"""
  758:         pn = self.getDLParam('pn')
  759:         try:
  760:             return int(pn)
  761:         except:
  762:             return 1
  763: 
  764:     def getBiggerWS(self):
  765:         """ws+1"""
  766:         ws = self.getDLParam('ws')
  767:         try:
  768:             return float(ws)+0.5
  769:         except:
  770:             return 1.5
  771:         
  772:     def getSmallerWS(self):
  773:         """ws-1"""
  774:         ws=self.getDLParam('ws')
  775:         try:
  776:             return max(float(ws)-0.5, 1)
  777:         except:
  778:             return 1
  779: 
  780:     def hasMode(self, mode):
  781:         """returns if mode is in the diglib mo parameter"""
  782:         return (mode in self.REQUEST.SESSION['dlModes'])
  783: 
  784:     def hasNextPage(self):
  785:         """returns if there is a next page"""
  786:         pn = self.getPN()
  787:         pt = self.getPT()
  788:         return (pn < pt)
  789:    
  790:     def hasPrevPage(self):
  791:         """returns if there is a previous page"""
  792:         pn = self.getPN()
  793:         return (pn > 1)
  794: 
  795:     def canMoveLeft(self):
  796:         """returns if its possible to move left"""
  797:         wx = float(self.getDLParam('wx') or 0)
  798:         return (wx > 0)
  799: 
  800:     def canMoveRight(self):
  801:         """returns if its possible to move right"""
  802:         wx = float(self.getDLParam('wx') or 0)
  803:         ww = float(self.getDLParam('ww') or 1)
  804:         return (wx + ww < 1)
  805: 
  806:     def canMoveUp(self):
  807:         """returns if its possible to move up"""
  808:         wy = float(self.getDLParam('wy') or 0)
  809:         return (wy > 0)
  810: 
  811:     def canMoveDown(self):
  812:         """returns if its possible to move down"""
  813:         wy = float(self.getDLParam('wy') or 0)
  814:         wh = float(self.getDLParam('wh') or 1)
  815:         return (wy + wh < 1)
  816: 
  817: 
  818:     def dl_StaticHTML(self):
  819:         """set rendering to static HTML"""
  820:         self.checkQuery()
  821:         self.REQUEST.SESSION['browserType']['staticHTML'] = True
  822:         return self.display()
  823: 
  824:     def dl_DynamicHTML(self):
  825:         """set rendering to dynamic HTML"""
  826:         self.checkQuery()
  827:         self.REQUEST.SESSION['browserType']['staticHTML'] = False
  828:         return self.display()
  829:         
  830:     def dl_HMirror(self):
  831:         """mirror action"""
  832:         modes = self.REQUEST.SESSION['dlModes']
  833:         if 'hmir' in modes:
  834:             modes.remove('hmir')
  835:         else:
  836:             modes.append('hmir')
  837: 
  838:         return self.display()
  839:        
  840:     def dl_VMirror(self):
  841:         """mirror action"""
  842:         modes = self.REQUEST.SESSION['dlModes']
  843:         if 'vmir' in modes:
  844:             modes.remove('vmir')
  845:         else:
  846:             modes.append('vmir')
  847: 
  848:         return self.display()
  849: 
  850:     def dl_Zoom(self, z):
  851:         """general zoom action"""
  852:         ww1 = float(self.getDLParam('ww') or 1)
  853:         wh1 = float(self.getDLParam('wh') or 1)
  854:         wx = float(self.getDLParam('wx') or 0)
  855:         wy = float(self.getDLParam('wy') or 0)
  856:         ww2 = ww1 * z
  857:         wh2 = wh1 * z
  858:         wx += (ww1 - ww2) / 2
  859:         wy += (wh1 - wh2) / 2
  860:         ww2 = max(min(ww2, 1), 0)
  861:         wh2 = max(min(wh2, 1), 0)
  862:         wx = max(min(wx, 1), 0)
  863:         wy = max(min(wy, 1), 0)
  864:         self.setDLParam('ww', cropf(ww2))
  865:         self.setDLParam('wh', cropf(wh2))
  866:         self.setDLParam('wx', cropf(wx))
  867:         self.setDLParam('wy', cropf(wy))
  868:         return self.display()
  869:         
  870:     def dl_ZoomIn(self):
  871:         """zoom in action"""
  872:         z = 0.7071
  873:         return self.dl_Zoom(z)
  874: 
  875:     def dl_ZoomOut(self):
  876:         """zoom out action"""
  877:         z = 1.4142
  878:         return self.dl_Zoom(z)
  879: 
  880:     def dl_Move(self, dx, dy):
  881:         """general move action"""
  882:         ww = float(self.getDLParam('ww') or 1)
  883:         wh = float(self.getDLParam('wh') or 1)
  884:         wx = float(self.getDLParam('wx') or 0)
  885:         wy = float(self.getDLParam('wy') or 0)
  886:         wx += dx * 0.5 * ww
  887:         wy += dy * 0.5 * wh
  888:         wx = max(min(wx, 1), 0)
  889:         wy = max(min(wy, 1), 0)
  890:         self.setDLParam('wx', cropf(wx))
  891:         self.setDLParam('wy', cropf(wy))
  892:         return self.display()
  893:         
  894:     def dl_MoveLeft(self):
  895:         """move left action"""
  896:         return self.dl_Move(-1, 0)
  897:     
  898:     def dl_MoveRight(self):
  899:         """move left action"""
  900:         return self.dl_Move(1, 0)
  901:     
  902:     def dl_MoveUp(self):
  903:         """move left action"""
  904:         return self.dl_Move(0, -1)
  905:     
  906:     def dl_MoveDown(self):
  907:         """move left action"""
  908:         return self.dl_Move(0, 1)
  909:     
  910:     def dl_WholePage(self):
  911:         """zoom out action"""
  912:         self.setDLParam('ww', 1)
  913:         self.setDLParam('wh', 1)
  914:         self.setDLParam('wx', 0)
  915:         self.setDLParam('wy', 0)
  916:         return self.display()
  917:         
  918:     def dl_PrevPage(self):
  919:         """next page action"""
  920:         pn = self.getPN() - 1
  921:         if pn < 1:
  922:             pn = 1
  923:         self.setDLParam('pn', pn)
  924:         # unmark
  925:         self.setDLParam('mk', None)
  926:         return self.display()
  927:         
  928:     def dl_NextPage(self):
  929:         """next page action"""
  930:         pn = self.getPN() + 1
  931:         pt = self.getPT()
  932:         if pn > pt:
  933:             pn = pt
  934:         self.setDLParam('pn', pn)
  935:         # unmark
  936:         self.setDLParam('mk', None)
  937:         return self.display()
  938: 
  939:     def dl_FirstPage(self):
  940:         """first page action"""
  941:         self.setDLParam('pn', 1)
  942:         # unmark
  943:         self.setDLParam('mk', None)
  944:         return self.display()
  945:     
  946:     def dl_LastPage(self):
  947:         """last page action"""
  948:         self.setDLParam('pn', self.getPT())
  949:         # unmark
  950:         self.setDLParam('mk', None)
  951:         return self.display()
  952: 
  953:     def dl_Unmark(self):
  954:         """action to remove last mark"""
  955:         mk = self.getDLParam('mk')
  956:         if mk:
  957:             marks = mk.split(',')
  958:             marks.pop()
  959:             mk = string.join(marks, ',')
  960:             self.setDLParam('mk', mk)
  961:         return self.display()
  962: 
  963: 
  964: 
  965:     def changeZogiLibForm(self):
  966:         """Main configuration"""
  967:         pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/changeZogiLibForm.zpt')).__of__(self)
  968:         return pt()
  969:     
  970:     def changeZogiLib(self,title,digilibBaseUrl, localFileBase, version, basePath, dlTarget, RESPONSE=None):
  971:         """change it"""
  972:         self.title=title
  973:         self.digilibBaseUrl=digilibBaseUrl
  974:         self.localFileBase=localFileBase
  975:         self.basePath = basePath
  976:         self.layout=version
  977:         if dlTarget:
  978:             self.dlTarget = dlTarget
  979:         else:
  980:             self.dlTarget = "digilib"
  981: 
  982:         if RESPONSE is not None:
  983:             RESPONSE.redirect('manage_main')
  984: 
  985:           
  986: def manage_addZogiLibForm(self):
  987:     """interface for adding zogilib"""
  988:     pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/addZogiLibForm')).__of__(self)
  989:     return pt()
  990: 
  991: def manage_addZogiLib(self,id,title,digilibBaseUrl, localFileBase,version="book",basePath="",dlTarget="digilib",RESPONSE=None):
  992:     """add dgilib"""
  993:     newObj=zogiLib(id,title,digilibBaseUrl, localFileBase, version, basePath, dlTarget)
  994:     self.Destination()._setObject(id,newObj)
  995:     if RESPONSE is not None:
  996:         RESPONSE.redirect('manage_main')
  997: 
  998: 
  999: class zogiLibPageTemplate(ZopePageTemplate):
 1000:     """pageTemplate Objekt"""
 1001:     meta_type="zogiLib_pageTemplate"
 1002: 
 1003: 
 1004: ## def __init__(self, id, text=None, contentType=None):
 1005: ##         self.id = str(id)
 1006: ##         self.ZBindings_edit(self._default_bindings)
 1007: ##         if text is None:
 1008: ##             text = open(self._default_cont).read()
 1009: ##         self.pt_edit(text, contentType)
 1010: 
 1011: def manage_addZogiLibPageTemplateForm(self):
 1012:     """Form for adding"""
 1013:     pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/addZogiLibPageTemplateForm')).__of__(self)
 1014:     return pt()
 1015: 
 1016: def manage_addZogiLibPageTemplate(self, id='zogiLibMainTemplate', title=None, layout=None, text=None,
 1017:                            REQUEST=None, submit=None):
 1018:     "Add a Page Template with optional file content."
 1019: 
 1020:     id = str(id)
 1021:     self._setObject(id, zogiLibPageTemplate(id))
 1022:     ob = getattr(self, id)
 1023:     if not layout: layout = "book"
 1024:     ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/zogiLibMain_%s.zpt'%layout)).read(),None)
 1025:     if title:
 1026:         ob.pt_setTitle(title)
 1027:     try:
 1028:         u = self.DestinationURL()
 1029:     except AttributeError:
 1030:         u = REQUEST['URL1']
 1031:         
 1032:     u = "%s/%s" % (u, urllib.quote(id))
 1033:     REQUEST.RESPONSE.redirect(u+'/manage_main')
 1034:     return ''

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