--- zogiLib/zogiLib.py 2004/07/22 17:19:22 1.35 +++ zogiLib/zogiLib.py 2005/10/11 20:06:05 1.58 @@ -1,9 +1,9 @@ +from OFS.SimpleItem import SimpleItem from Products.PageTemplates.PageTemplateFile import PageTemplateFile from Products.PageTemplates.PageTemplate import PageTemplate from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate from OFS.Image import Image -from webdav.common import rfc1123_date - +from AccessControl import ClassSecurityInfo import xml.dom.minidom from OFS.Folder import Folder from xml_helpers import getUniqueElementText,getText @@ -11,10 +11,12 @@ import os import re import string import urllib -import types +from types import * +import random +import cgi from Globals import package_home -ZOGIVERSION = "0.9.7 ROC:21.7.2004" +ZOGIVERSION = "0.9.15b DW:22.2.2005" def cropf(f): """returns a float with reduced precision""" @@ -22,24 +24,24 @@ def cropf(f): def sendFile(self, filename, type): - """sends an object or a local file (in the product) as response""" + """sends an object or a local file (from the product) as response""" paths = filename.split('/') object = self # look for an object called filename for path in paths: if hasattr(object, path): - object = getattr(object, path) - else: - object = None - break + object = getattr(object, path) + else: + object = None + break if object: - # if the object exists then send it - return object.index_html(self.REQUEST.REQUEST, self.REQUEST.RESPONSE) + # if the object exists then send it + return object.index_html(self.REQUEST.REQUEST, self.REQUEST.RESPONSE) else: - # send a local file with the given content-type - fn = os.path.join(package_home(globals()), filename) - self.REQUEST.RESPONSE.setHeader("Content-Type", type) - self.REQUEST.RESPONSE.write(file(fn).read()) + # send a local file with the given content-type + fn = os.path.join(package_home(globals()), filename) + self.REQUEST.RESPONSE.setHeader("Content-Type", type) + self.REQUEST.RESPONSE.write(file(fn).read()) return def browserCheck(self): @@ -47,12 +49,20 @@ def browserCheck(self): bt = {} ua = self.REQUEST.get_header("HTTP_USER_AGENT") bt['ua'] = ua - bt['isIE'] = string.find(ua, 'MSIE') > -1 - bt['isN4'] = (string.find(ua, 'Mozilla/4.') > -1) and not bt['isIE'] - nav = ua[string.find(ua, '('):] - ie = string.split(nav, "; ")[1] - if string.find(ie, "MSIE") > -1: - bt['versIE'] = string.split(ie, " ")[1] + bt['isIE'] = False + bt['isN4'] = False + if string.find(ua, 'MSIE') > -1: + bt['isIE'] = True + else: + bt['isN4'] = (string.find(ua, 'Mozilla/4.') > -1) + + try: + nav = ua[string.find(ua, '('):] + ie = string.split(nav, "; ")[1] + if string.find(ie, "MSIE") > -1: + bt['versIE'] = string.split(ie, " ")[1] + except: pass + bt['isMac'] = string.find(ua, 'Macintosh') > -1 bt['isWin'] = string.find(ua, 'Windows') > -1 bt['isIEWin'] = bt['isIE'] and bt['isWin'] @@ -62,11 +72,11 @@ def browserCheck(self): return bt -class zogiImage(Image): +class zogiImage(SimpleItem): """einzelnes Image""" meta_type="zogiImage" - manage_options=ZopePageTemplate.manage_options+( + manage_options=SimpleItem.manage_options+( {'label':'Main config','action':'changeZogiImageForm'}, ) @@ -75,14 +85,18 @@ class zogiImage(Image): """init""" self.id=id self.title=title - self.baseUrl=baseUrl + if baseUrl: + self.baseUrl=baseUrl + else: + self.baseUrl="http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary/servlet/Scaler?" + self.queryString=queryString self.content_type=content_type self.precondition=precondition - def getData(self): - """getUrlData""" - return urllib.urlopen(self.baseUrl+self.queryString) + #def getData(self): + # """getUrlData""" + # return urllib.urlopen(self.baseUrl+self.queryString) def changeZogiImageForm(self): """Main configuration""" @@ -98,271 +112,28 @@ class zogiImage(Image): if RESPONSE is not None: RESPONSE.redirect('manage_main') - def index_html(self, REQUEST, RESPONSE): - """ - Modified version of OFS/Image.py - - The default view of the contents of a File or Image. - - Returns the contents of the file or image. Also, sets the - Content-Type HTTP header to the objects content type. - """ - - # HTTP If-Modified-Since header handling. - header=REQUEST.get_header('If-Modified-Since', None) - if header is not None: - header=header.split( ';')[0] - # Some proxies seem to send invalid date strings for this - # header. If the date string is not valid, we ignore it - # rather than raise an error to be generally consistent - # with common servers such as Apache (which can usually - # understand the screwy date string as a lucky side effect - # of the way they parse it). - # This happens to be what RFC2616 tells us to do in the face of an - # invalid date. - try: mod_since=long(DateTime(header).timeTime()) - except: mod_since=None - if mod_since is not None: - if self._p_mtime: - last_mod = long(self._p_mtime) - else: - last_mod = long(0) - if last_mod > 0 and last_mod <= mod_since: - # Set header values since apache caching will return Content-Length - # of 0 in response if size is not set here - RESPONSE.setHeader('Last-Modified', rfc1123_date(self._p_mtime)) - RESPONSE.setHeader('Content-Type', self.content_type) - RESPONSE.setHeader('Content-Length', self.size) - RESPONSE.setHeader('Accept-Ranges', 'bytes') - self.ZCacheable_set(None) - RESPONSE.setStatus(304) - return '' - - if self.precondition and hasattr(self,self.precondition): - # Grab whatever precondition was defined and then - # execute it. The precondition will raise an exception - # if something violates its terms. - c=getattr(self,self.precondition) - if hasattr(c,'isDocTemp') and c.isDocTemp: - c(REQUEST['PARENTS'][1],REQUEST) - else: - c() - - # HTTP Range header handling - range = REQUEST.get_header('Range', None) - request_range = REQUEST.get_header('Request-Range', None) - if request_range is not None: - # Netscape 2 through 4 and MSIE 3 implement a draft version - # Later on, we need to serve a different mime-type as well. - range = request_range - if_range = REQUEST.get_header('If-Range', None) - if range is not None: - ranges = HTTPRangeSupport.parseRange(range) - - if if_range is not None: - # Only send ranges if the data isn't modified, otherwise send - # the whole object. Support both ETags and Last-Modified dates! - if len(if_range) > 1 and if_range[:2] == 'ts': - # ETag: - if if_range != self.http__etag(): - # Modified, so send a normal response. We delete - # the ranges, which causes us to skip to the 200 - # response. - ranges = None - else: - # Date - date = if_range.split( ';')[0] - try: mod_since=long(DateTime(date).timeTime()) - except: mod_since=None - if mod_since is not None: - if self._p_mtime: - last_mod = long(self._p_mtime) - else: - last_mod = long(0) - if last_mod > mod_since: - # Modified, so send a normal response. We delete - # the ranges, which causes us to skip to the 200 - # response. - ranges = None - - if ranges: - # Search for satisfiable ranges. - satisfiable = 0 - for start, end in ranges: - if start < self.size: - satisfiable = 1 - break - - if not satisfiable: - RESPONSE.setHeader('Content-Range', - 'bytes */%d' % self.size) - RESPONSE.setHeader('Accept-Ranges', 'bytes') - RESPONSE.setHeader('Last-Modified', - rfc1123_date(self._p_mtime)) - RESPONSE.setHeader('Content-Type', self.content_type) - RESPONSE.setHeader('Content-Length', self.size) - RESPONSE.setStatus(416) - return '' - - ranges = HTTPRangeSupport.expandRanges(ranges, self.size) - - if len(ranges) == 1: - # Easy case, set extra header and return partial set. - start, end = ranges[0] - size = end - start - - RESPONSE.setHeader('Last-Modified', - rfc1123_date(self._p_mtime)) - RESPONSE.setHeader('Content-Type', self.content_type) - RESPONSE.setHeader('Content-Length', size) - RESPONSE.setHeader('Accept-Ranges', 'bytes') - RESPONSE.setHeader('Content-Range', - 'bytes %d-%d/%d' % (start, end - 1, self.size)) - RESPONSE.setStatus(206) # Partial content - - data = urllib.urlopen(self.baseUrl+self.queryString).read() - if type(data) is StringType: - return data[start:end] - - # Linked Pdata objects. Urgh. - pos = 0 - while data is not None: - l = len(data.data) - pos = pos + l - if pos > start: - # We are within the range - lstart = l - (pos - start) - - if lstart < 0: lstart = 0 - - # find the endpoint - if end <= pos: - lend = l - (pos - end) - - # Send and end transmission - RESPONSE.write(data[lstart:lend]) - break - - # Not yet at the end, transmit what we have. - RESPONSE.write(data[lstart:]) - - data = data.next - - return '' - - else: - boundary = choose_boundary() - - # Calculate the content length - size = (8 + len(boundary) + # End marker length - len(ranges) * ( # Constant lenght per set - 49 + len(boundary) + len(self.content_type) + - len('%d' % self.size))) - for start, end in ranges: - # Variable length per set - size = (size + len('%d%d' % (start, end - 1)) + - end - start) - - - # Some clients implement an earlier draft of the spec, they - # will only accept x-byteranges. - draftprefix = (request_range is not None) and 'x-' or '' - - RESPONSE.setHeader('Content-Length', size) - RESPONSE.setHeader('Accept-Ranges', 'bytes') - RESPONSE.setHeader('Last-Modified', - rfc1123_date(self._p_mtime)) - RESPONSE.setHeader('Content-Type', - 'multipart/%sbyteranges; boundary=%s' % ( - draftprefix, boundary)) - RESPONSE.setStatus(206) # Partial content - - data = urllib.urlopen(self.baseUrl+self.queryString).read() - # The Pdata map allows us to jump into the Pdata chain - # arbitrarily during out-of-order range searching. - pdata_map = {} - pdata_map[0] = data - - for start, end in ranges: - RESPONSE.write('\r\n--%s\r\n' % boundary) - RESPONSE.write('Content-Type: %s\r\n' % - self.content_type) - RESPONSE.write( - 'Content-Range: bytes %d-%d/%d\r\n\r\n' % ( - start, end - 1, self.size)) - - if type(data) is StringType: - RESPONSE.write(data[start:end]) - - else: - # Yippee. Linked Pdata objects. The following - # calculations allow us to fast-forward through the - # Pdata chain without a lot of dereferencing if we - # did the work already. - first_size = len(pdata_map[0].data) - if start < first_size: - closest_pos = 0 - else: - closest_pos = ( - ((start - first_size) >> 16 << 16) + - first_size) - pos = min(closest_pos, max(pdata_map.keys())) - data = pdata_map[pos] - - while data is not None: - l = len(data.data) - pos = pos + l - if pos > start: - # We are within the range - lstart = l - (pos - start) - - if lstart < 0: lstart = 0 - - # find the endpoint - if end <= pos: - lend = l - (pos - end) - - # Send and loop to next range - RESPONSE.write(data[lstart:lend]) - break - - # Not yet at the end, transmit what we have. - RESPONSE.write(data[lstart:]) - - data = data.next - # Store a reference to a Pdata chain link so we - # don't have to deref during this request again. - pdata_map[pos] = data - - # Do not keep the link references around. - del pdata_map - - RESPONSE.write('\r\n--%s--\r\n' % boundary) - return '' - - RESPONSE.setHeader('Last-Modified', rfc1123_date(self._p_mtime)) - RESPONSE.setHeader('Content-Type', self.content_type) - RESPONSE.setHeader('Content-Length', self.size) - RESPONSE.setHeader('Accept-Ranges', 'bytes') - - # Don't cache the data itself, but provide an opportunity - # for a cache manager to set response headers. - self.ZCacheable_set(None) - - data=urllib.urlopen(self.baseUrl+self.queryString).read() - - if type(data) is type(''): - RESPONSE.setBase(None) - return data - - while data is not None: - RESPONSE.write(data.data) - data=data.next - + """service the request by redirecting to digilib server""" + RESPONSE.redirect(self.baseUrl+self.queryString) return '' - - + + def rescale(self,width=None,height=None): + """andere parameter im querystring""" + qs=cgi.parse_qs(self.queryString) + for x in qs.keys(): + if type(qs[x]) is ListType: + qs[x]=qs[x][0] + + if width: + qs['dw']=width + if height: + qs['dh']=height + + + qsneu=urllib.urlencode(qs) + self.queryString=qsneu + return "done" + def manage_addZogiImageForm(self): """Form for adding""" pt=PageTemplateFile(os.path.join(package_home(globals()), 'zpt/addZogiImage.zpt')).__of__(self) @@ -370,7 +141,7 @@ def manage_addZogiImageForm(self): def manage_addZogiImage(self,id,title,baseUrl, queryString,RESPONSE=None): - """add dgilib""" + """add zogiimage""" newObj=zogiImage(id,title,baseUrl, queryString) self.Destination()._setObject(id,newObj) if RESPONSE is not None: @@ -379,30 +150,36 @@ def manage_addZogiImage(self,id,title,ba class zogiLib(Folder): - """StandardElement""" + """digilib frontend with ZOPE""" meta_type="zogiLib" #xxxx - + security=ClassSecurityInfo() + manage_options = Folder.manage_options+( {'label':'Main Config','action':'changeZogiLibForm'}, ) - def __init__(self, id, title, dlServerURL,localFileBase, version="book", basePath="", dlTarget=None): + def __init__(self, id, title, dlServerURL, layout="book", basePath="", dlTarget=None, dlToolbarBaseURL=None): """init""" self.id=id self.title=title self.dlServerURL = dlServerURL - - self.localFileBase=localFileBase self.basePath=basePath - self.layout=version - if dlTarget: - self.dlTarget = dlTarget + self.layout=layout + self.dlTarget = dlTarget + + if dlToolbarBaseURL: + self.dlToolbarBaseURL = dlToolbarBaseURL else: - self.dlTarget = "digilib" + self.dlToolbarBaseURL = dlServerURL + "/digimage.jsp?" + security.declareProtected('View','getLayout') + def getLayout(self): + """get Layout""" + return self.layout + def version(self): """version information""" return ZOGIVERSION @@ -448,10 +225,11 @@ class zogiLib(Folder): return ret except: - return ret - def formatHTML(self,url,label=None,viewUrl=None): + return [] + + def formatHTML(self,url,label=None,viewUrl=None): sets=xml.dom.minidom.parse(urllib.urlopen(url)).getElementsByTagName('dataset') ret="" @@ -470,6 +248,7 @@ class zogiLib(Folder): ret+="""