| 1 | from OFS.Folder import Folder |
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| 2 | from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate |
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| 3 | from Products.PageTemplates.PageTemplateFile import PageTemplateFile |
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| 4 | from AccessControl import ClassSecurityInfo |
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| 5 | from AccessControl import getSecurityManager |
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| 6 | from Globals import package_home |
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| 7 | |
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| 8 | from Ft.Xml.Domlette import NonvalidatingReader |
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| 9 | from Ft.Xml.Domlette import PrettyPrint, Print |
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| 10 | from Ft.Xml import EMPTY_NAMESPACE, Parse |
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| 11 | |
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| 12 | import Ft.Xml.XPath |
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| 13 | |
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| 14 | import os.path |
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| 15 | import sys |
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| 16 | import cgi |
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| 17 | import urllib |
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| 18 | import zLOG |
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| 19 | |
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| 20 | def getInt(number, default=0): |
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| 21 | """returns always an int (0 in case of problems)""" |
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| 22 | try: |
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| 23 | return int(number) |
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| 24 | except: |
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| 25 | return default |
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| 26 | |
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| 27 | def getTextFromNode(nodename): |
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| 28 | if nodename is None: |
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| 29 | return "" |
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| 30 | nodelist=nodename.childNodes |
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| 31 | rc = "" |
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| 32 | for node in nodelist: |
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| 33 | if node.nodeType == node.TEXT_NODE: |
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| 34 | rc = rc + node.data |
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| 35 | return rc |
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| 36 | |
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| 37 | |
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| 38 | def getParentDir(path): |
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| 39 | """returns pathname shortened by one""" |
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| 40 | return '/'.join(path.split('/')[0:-1]) |
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| 41 | |
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| 42 | |
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| 43 | import socket |
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| 44 | |
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| 45 | def urlopen(url,timeout=2): |
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| 46 | """urlopen mit timeout""" |
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| 47 | socket.setdefaulttimeout(timeout) |
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| 48 | ret=urllib.urlopen(url) |
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| 49 | socket.setdefaulttimeout(5) |
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| 50 | return ret |
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| 51 | |
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| 52 | |
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| 53 | ## |
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| 54 | ## documentViewer class |
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| 55 | ## |
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| 56 | class documentViewer(Folder): |
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| 57 | """document viewer""" |
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| 58 | |
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| 59 | meta_type="Document viewer" |
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| 60 | |
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| 61 | security=ClassSecurityInfo() |
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| 62 | manage_options=Folder.manage_options+( |
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| 63 | {'label':'main config','action':'changeDocumentViewerForm'}, |
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| 64 | ) |
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| 65 | |
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| 66 | # templates and forms |
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| 67 | viewer_main = PageTemplateFile('zpt/viewer_main', globals()) |
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| 68 | thumbs_main = PageTemplateFile('zpt/thumbs_main', globals()) |
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| 69 | image_main = PageTemplateFile('zpt/image_main', globals()) |
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| 70 | head_main = PageTemplateFile('zpt/head_main', globals()) |
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| 71 | docuviewer_css = PageTemplateFile('css/docuviewer.css', globals()) |
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| 72 | |
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| 73 | security.declareProtected('View management screens','changeDocumentViewerForm') |
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| 74 | changeDocumentViewerForm = PageTemplateFile('zpt/changeDocumentViewer', globals()) |
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| 75 | |
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| 76 | |
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| 77 | def __init__(self,id,imageViewerUrl,title="",digilibBaseUrl=None,thumbcols=2,thumbrows=10,authgroups="mpiwg"): |
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| 78 | """init document viewer""" |
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| 79 | self.id=id |
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| 80 | self.title=title |
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| 81 | self.imageViewerUrl=imageViewerUrl |
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| 82 | if not digilibBaseUrl: |
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| 83 | self.digilibBaseUrl = self.findDigilibUrl() |
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| 84 | else: |
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| 85 | self.digilibBaseUrl = digilibBaseUrl |
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| 86 | self.thumbcols = thumbcols |
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| 87 | self.thumbrows = thumbrows |
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| 88 | # authgroups is list of authorized groups (delimited by ,) |
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| 89 | self.authgroups = [s.strip().lower() for s in authgroups.split(',')] |
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| 90 | # add template folder so we can always use template.something |
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| 91 | self.manage_addFolder('template') |
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| 92 | |
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| 93 | |
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| 94 | security.declareProtected('View','index_html') |
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| 95 | def index_html(self,mode,url,start=None,pn=1): |
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| 96 | ''' |
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| 97 | view it |
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| 98 | @param mode: defines which type of document is behind url |
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| 99 | @param url: url which contains display information |
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| 100 | ''' |
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| 101 | |
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| 102 | zLOG.LOG("documentViewer (index)", zLOG.INFO, "mode: %s url:%s start:%s pn:%s"%(mode,url,start,pn)) |
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| 103 | |
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| 104 | if not hasattr(self, 'template'): |
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| 105 | # create template folder if it doesn't exist |
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| 106 | self.manage_addFolder('template') |
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| 107 | |
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| 108 | if not self.digilibBaseUrl: |
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| 109 | self.digilibBaseUrl = self.findDigilibUrl() or "http://nausikaa.mpiwg-berlin.mpg.de/digitallibrary" |
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| 110 | |
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| 111 | docinfo = self.getDocinfo(mode=mode,url=url) |
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| 112 | pageinfo = self.getPageinfo(start=start,current=pn,docinfo=docinfo) |
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| 113 | pt = getattr(self.template, 'viewer_main') |
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| 114 | return pt(docinfo=docinfo,pageinfo=pageinfo) |
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| 115 | |
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| 116 | |
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| 117 | def getLink(self,param=None,val=None): |
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| 118 | """link to documentviewer with parameter param set to val""" |
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| 119 | params=self.REQUEST.form.copy() |
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| 120 | if param is not None: |
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| 121 | if val is None: |
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| 122 | if params.has_key(param): |
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| 123 | del params[param] |
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| 124 | else: |
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| 125 | params[param] = str(val) |
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| 126 | |
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| 127 | # quote values and assemble into query string |
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| 128 | ps = "&".join(["%s=%s"%(k,urllib.quote(v)) for (k, v) in params.items()]) |
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| 129 | url=self.REQUEST['URL1']+"?"+ps |
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| 130 | return url |
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| 131 | |
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| 132 | |
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| 133 | def getStyle(self, idx, selected, style=""): |
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| 134 | """returns a string with the given style and append 'sel' if path == selected.""" |
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| 135 | #zLOG.LOG("documentViewer (getstyle)", zLOG.INFO, "idx: %s selected: %s style: %s"%(idx,selected,style)) |
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| 136 | if idx == selected: |
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| 137 | return style + 'sel' |
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| 138 | else: |
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| 139 | return style |
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| 140 | |
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| 141 | |
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| 142 | def isAccessible(self, docinfo): |
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| 143 | """returns if access to the resource is granted""" |
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| 144 | access = docinfo.get('accessType', None) |
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| 145 | if access is None: |
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| 146 | # no information - no access |
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| 147 | #TODO: check |
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| 148 | return True |
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| 149 | elif access == 'free': |
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| 150 | return True |
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| 151 | elif access in self.authgroups: |
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| 152 | # only local access -- only logged in users |
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| 153 | user = getSecurityManager().getUser() |
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| 154 | if user is not None: |
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| 155 | #print "user: ", user |
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| 156 | return (user.getUserName() != "Anonymous User") |
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| 157 | else: |
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| 158 | return False |
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| 159 | |
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| 160 | zLOG.LOG("documentViewer (accessOK)", zLOG.INFO, "unknown access type %s"%access) |
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| 161 | return False |
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| 162 | |
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| 163 | |
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| 164 | def getDirinfoFromDigilib(self,path,docinfo=None): |
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| 165 | """gibt param von dlInfo aus""" |
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| 166 | if docinfo is None: |
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| 167 | docinfo = {} |
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| 168 | |
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| 169 | imageUrl=self.digilibBaseUrl+"/dirInfo-xml.jsp?mo=dir&fn="+path |
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| 170 | |
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| 171 | zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo from %s"%(imageUrl)) |
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| 172 | |
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| 173 | for cnt in (1,2,3): |
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| 174 | try: |
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| 175 | dom = NonvalidatingReader.parseUri(imageUrl) |
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| 176 | break |
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| 177 | except: |
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| 178 | zLOG.LOG("documentViewer (getdirinfofromdigilib)", zLOG.ERROR, "error reading %s (try %d)"%(imageUrl,cnt)) |
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| 179 | else: |
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| 180 | raise IOError("Unable to get dir-info from %s"%(imageUrl)) |
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| 181 | |
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| 182 | sizes=dom.xpath("//dir/size") |
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| 183 | zLOG.LOG("documentViewer (getparamfromdigilib)", zLOG.INFO, "dirInfo:size"%sizes) |
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| 184 | |
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| 185 | if sizes: |
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| 186 | docinfo['numPages'] = int(getTextFromNode(sizes[0])) |
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| 187 | else: |
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| 188 | docinfo['numPages'] = 0 |
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| 189 | |
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| 190 | return docinfo |
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| 191 | |
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| 192 | |
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| 193 | def getIndexMeta(self, url): |
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| 194 | """returns dom of index.meta document at url""" |
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| 195 | num_retries = 3 |
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| 196 | dom = None |
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| 197 | metaUrl = None |
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| 198 | if url.startswith("http://"): |
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| 199 | # real URL |
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| 200 | metaUrl = url |
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| 201 | else: |
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| 202 | # online path |
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| 203 | server=self.digilibBaseUrl+"/servlet/Texter?fn=" |
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| 204 | metaUrl=server+url |
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| 205 | if not metaUrl.endswith("index.meta"): |
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| 206 | metaUrl += "/index.meta" |
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| 207 | |
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| 208 | for n in range(num_retries): |
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| 209 | try: |
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| 210 | # patch dirk encoding fehler treten dann nicht mehr auf |
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| 211 | # dom = NonvalidatingReader.parseUri(metaUrl) |
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| 212 | txt=urllib.urlopen(metaUrl).read() |
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| 213 | dom = Parse(txt) |
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| 214 | except: |
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| 215 | zLOG.LOG("ERROR documentViewer (getIndexMata)", zLOG.INFO,"%s (%s)"%sys.exc_info()[0:2]) |
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| 216 | |
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| 217 | if dom is None: |
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| 218 | raise IOError("Unable to read index meta from %s"%(url)) |
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| 219 | |
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| 220 | return dom |
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| 221 | |
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| 222 | |
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| 223 | def getAuthinfoFromIndexMeta(self,path,docinfo=None,dom=None): |
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| 224 | """gets authorization info from the index.meta file at path or given by dom""" |
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| 225 | zLOG.LOG("documentViewer (getauthinfofromindexmeta)", zLOG.INFO,"path: %s"%(path)) |
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| 226 | |
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| 227 | access = None |
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| 228 | |
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| 229 | if docinfo is None: |
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| 230 | docinfo = {} |
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| 231 | |
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| 232 | if dom is None: |
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| 233 | dom = self.getIndexMeta(getParentDir(path)) |
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| 234 | |
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| 235 | acctype = dom.xpath("//access-conditions/access/@type") |
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| 236 | if acctype and (len(acctype)>0): |
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| 237 | access=acctype[0].value |
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| 238 | if access in ['group', 'institution']: |
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| 239 | access = getTextFromNode(dom.xpath("//access-conditions/access/name")[0]).lower() |
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| 240 | |
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| 241 | docinfo['accessType'] = access |
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| 242 | return docinfo |
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| 243 | |
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| 244 | |
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| 245 | def getBibinfoFromIndexMeta(self,path,docinfo=None,dom=None): |
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| 246 | """gets bibliographical info from the index.meta file at path or given by dom""" |
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| 247 | zLOG.LOG("documentViewer (getbibinfofromindexmeta)", zLOG.INFO,"path: %s"%(path)) |
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| 248 | |
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| 249 | if docinfo is None: |
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| 250 | docinfo = {} |
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| 251 | |
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| 252 | if dom is None: |
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| 253 | dom = self.getIndexMeta(getParentDir(path)) |
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| 254 | |
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| 255 | metaData=self.metadata.main.meta.bib |
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| 256 | bibtype=dom.xpath("//bib/@type") |
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| 257 | if bibtype and (len(bibtype)>0): |
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| 258 | bibtype=bibtype[0].value |
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| 259 | else: |
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| 260 | bibtype="generic" |
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| 261 | bibtype=bibtype.replace("-"," ") # wrong typesiin index meta "-" instead of " " (not wrong! ROC) |
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| 262 | bibmap=metaData.generateMappingForType(bibtype) |
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| 263 | #print "bibmap: ", bibmap, " for: ", bibtype |
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| 264 | # if there is no mapping bibmap is empty (mapping sometimes has empty fields) |
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| 265 | if len(bibmap) > 0 and len(bibmap['author'][0]) > 0: |
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| 266 | docinfo['author']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['author'][0])[0]) |
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| 267 | docinfo['title']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['title'][0])[0]) |
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| 268 | docinfo['year']=getTextFromNode(dom.xpath("//bib/%s"%bibmap['year'][0])[0]) |
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| 269 | |
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| 270 | return docinfo |
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| 271 | |
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| 272 | |
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| 273 | def getDocinfoFromTextTool(self,url,dom=None,docinfo=None): |
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| 274 | """parse texttool tag in index meta""" |
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| 275 | zLOG.LOG("documentViewer (getdocinfofromtexttool)", zLOG.INFO,"url: %s"%(url)) |
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| 276 | if docinfo is None: |
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| 277 | docinfo = {} |
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| 278 | |
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| 279 | if dom is None: |
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| 280 | dom = self.getIndexMeta(url) |
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| 281 | |
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| 282 | archiveNames=dom.xpath("//resource/name") |
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| 283 | if archiveNames and (len(archiveNames)>0): |
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| 284 | archiveName=getTextFromNode(archiveNames[0]) |
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| 285 | |
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| 286 | archivePaths=dom.xpath("//resource/archive-path") |
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| 287 | if archivePaths and (len(archivePaths)>0): |
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| 288 | archivePath=getTextFromNode(archivePaths[0]) |
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| 289 | # clean up archive path |
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| 290 | if archivePath[0] != '/': |
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| 291 | archivePath = '/' + archivePath |
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| 292 | if not archivePath.endswith(archiveName): |
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| 293 | archivePath += "/" + archiveName |
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| 294 | else: |
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| 295 | archivePath=None |
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| 296 | |
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| 297 | imageDirs=dom.xpath("//texttool/image") |
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| 298 | if imageDirs and (len(imageDirs)>0): |
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| 299 | imageDir=getTextFromNode(imageDirs[0]) |
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| 300 | else: |
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| 301 | # we balk with no image tag |
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| 302 | raise IOError("No text-tool info in %s"%(url)) |
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| 303 | |
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| 304 | if imageDir and archivePath: |
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| 305 | #print "image: ", imageDir, " archivepath: ", archivePath |
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| 306 | imageDir=os.path.join(archivePath,imageDir) |
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| 307 | imageDir=imageDir.replace("/mpiwg/online",'') |
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| 308 | docinfo=self.getDirinfoFromDigilib(imageDir,docinfo=docinfo) |
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| 309 | docinfo['imagePath'] = imageDir |
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| 310 | docinfo['imageURL'] = self.digilibBaseUrl+"/servlet/Scaler?fn="+imageDir |
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| 311 | |
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| 312 | viewerUrls=dom.xpath("//texttool/digiliburlprefix") |
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| 313 | if viewerUrls and (len(viewerUrls)>0): |
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| 314 | viewerUrl=getTextFromNode(viewerUrls[0]) |
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| 315 | docinfo['viewerURL'] = viewerUrl |
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| 316 | |
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| 317 | textUrls=dom.xpath("//texttool/text") |
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| 318 | if textUrls and (len(textUrls)>0): |
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| 319 | textUrl=getTextFromNode(textUrls[0]) |
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| 320 | docinfo['textURL'] = textUrl |
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| 321 | |
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| 322 | docinfo = self.getBibinfoFromIndexMeta(url,docinfo=docinfo,dom=dom) |
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| 323 | docinfo = self.getAuthinfoFromIndexMeta(url,docinfo=docinfo,dom=dom) |
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| 324 | return docinfo |
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| 325 | |
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| 326 | |
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| 327 | def getDocinfoFromImagePath(self,path,docinfo=None): |
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| 328 | """path ist the path to the images it assumes that the index.meta file is one level higher.""" |
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| 329 | zLOG.LOG("documentViewer (getdocinfofromimagepath)", zLOG.INFO,"path: %s"%(path)) |
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| 330 | if docinfo is None: |
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| 331 | docinfo = {} |
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| 332 | path=path.replace("/mpiwg/online","") |
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| 333 | docinfo['imagePath'] = path |
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| 334 | docinfo=self.getDirinfoFromDigilib(path,docinfo=docinfo) |
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| 335 | imageUrl=self.digilibBaseUrl+"/servlet/Scaler?fn="+path |
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| 336 | docinfo['imageURL'] = imageUrl |
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| 337 | |
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| 338 | docinfo = self.getBibinfoFromIndexMeta(path,docinfo=docinfo) |
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| 339 | docinfo = self.getAuthinfoFromIndexMeta(path,docinfo=docinfo) |
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| 340 | return docinfo |
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| 341 | |
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| 342 | |
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| 343 | def getDocinfo(self, mode, url): |
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| 344 | """returns docinfo depending on mode""" |
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| 345 | zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"mode: %s, url: %s"%(mode,url)) |
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| 346 | # look for cached docinfo in session |
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| 347 | if self.REQUEST.SESSION.has_key('docinfo'): |
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| 348 | docinfo = self.REQUEST.SESSION['docinfo'] |
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| 349 | # check if its still current |
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| 350 | if docinfo is not None and docinfo.get('mode') == mode and docinfo.get('url') == url: |
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| 351 | zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo in session: %s"%docinfo) |
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| 352 | return docinfo |
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| 353 | # new docinfo |
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| 354 | docinfo = {'mode': mode, 'url': url} |
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| 355 | if mode=="texttool": #index.meta with texttool information |
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| 356 | docinfo = self.getDocinfoFromTextTool(url, docinfo=docinfo) |
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| 357 | elif mode=="imagepath": |
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| 358 | docinfo = self.getDocinfoFromImagePath(url, docinfo=docinfo) |
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| 359 | else: |
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| 360 | zLOG.LOG("documentViewer (getdocinfo)", zLOG.ERROR,"unknown mode!") |
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| 361 | raise ValueError("Unknown mode %s"%(mode)) |
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| 362 | |
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| 363 | zLOG.LOG("documentViewer (getdocinfo)", zLOG.INFO,"docinfo: %s"%docinfo) |
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| 364 | self.REQUEST.SESSION['docinfo'] = docinfo |
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| 365 | return docinfo |
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| 366 | |
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| 367 | |
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| 368 | def getPageinfo(self, current, start=None, rows=None, cols=None, docinfo=None): |
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| 369 | """returns pageinfo with the given parameters""" |
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| 370 | pageinfo = {} |
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| 371 | current = getInt(current) |
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| 372 | pageinfo['current'] = current |
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| 373 | rows = int(rows or self.thumbrows) |
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| 374 | pageinfo['rows'] = rows |
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| 375 | cols = int(cols or self.thumbcols) |
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| 376 | pageinfo['cols'] = cols |
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| 377 | grpsize = cols * rows |
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| 378 | pageinfo['groupsize'] = grpsize |
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| 379 | start = getInt(start, default=(int(current / grpsize) * grpsize +1)) |
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| 380 | pageinfo['start'] = start |
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| 381 | pageinfo['end'] = start + grpsize |
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| 382 | if docinfo is not None: |
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| 383 | np = int(docinfo['numPages']) |
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| 384 | pageinfo['end'] = min(pageinfo['end'], np) |
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| 385 | pageinfo['numgroups'] = int(np / grpsize) |
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| 386 | if np % grpsize > 0: |
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| 387 | pageinfo['numgroups'] += 1 |
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| 388 | |
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| 389 | return pageinfo |
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| 390 | |
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| 391 | def text(self,mode,url,pn): |
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| 392 | """give text""" |
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| 393 | if mode=="texttool": #index.meta with texttool information |
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| 394 | (viewerUrl,imagepath,textpath)=parseUrlTextTool(url) |
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| 395 | |
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| 396 | #print textpath |
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| 397 | try: |
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| 398 | dom = NonvalidatingReader.parseUri(textpath) |
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| 399 | except: |
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| 400 | return None |
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| 401 | |
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| 402 | list=[] |
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| 403 | nodes=dom.xpath("//pb") |
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| 404 | |
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| 405 | node=nodes[int(pn)-1] |
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| 406 | |
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| 407 | p=node |
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| 408 | |
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| 409 | while p.tagName!="p": |
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| 410 | p=p.parentNode |
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| 411 | |
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| 412 | |
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| 413 | endNode=nodes[int(pn)] |
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| 414 | |
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| 415 | |
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| 416 | e=endNode |
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| 417 | |
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| 418 | while e.tagName!="p": |
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| 419 | e=e.parentNode |
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| 420 | |
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| 421 | |
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| 422 | next=node.parentNode |
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| 423 | |
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| 424 | #sammle s |
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| 425 | while next and (next!=endNode.parentNode): |
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| 426 | list.append(next) |
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| 427 | next=next.nextSibling |
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| 428 | list.append(endNode.parentNode) |
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| 429 | |
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| 430 | if p==e:# beide im selben paragraphen |
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| 431 | pass |
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| 432 | # else: |
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| 433 | # next=p |
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| 434 | # while next!=e: |
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| 435 | # print next,e |
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| 436 | # list.append(next) |
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| 437 | # next=next.nextSibling |
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| 438 | # |
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| 439 | # for x in list: |
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| 440 | # PrettyPrint(x) |
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| 441 | # |
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| 442 | # return list |
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| 443 | # |
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| 444 | |
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| 445 | def findDigilibUrl(self): |
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| 446 | """try to get the digilib URL from zogilib""" |
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| 447 | url = self.imageViewerUrl[:-1] + "/getScalerUrl" |
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| 448 | try: |
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| 449 | scaler = urlopen(url).read() |
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| 450 | return scaler.replace("/servlet/Scaler?", "") |
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| 451 | except: |
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| 452 | return None |
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| 453 | |
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| 454 | def changeDocumentViewer(self,imageViewerUrl,title="",digilibBaseUrl=None,thumbrows=2,thumbcols=10,authgroups='mpiwg',RESPONSE=None): |
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| 455 | """init document viewer""" |
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| 456 | self.title=title |
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| 457 | self.imageViewerUrl=imageViewerUrl |
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| 458 | self.digilibBaseUrl = digilibBaseUrl |
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| 459 | self.thumbrows = thumbrows |
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| 460 | self.thumbcols = thumbcols |
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| 461 | self.authgroups = [s.strip().lower() for s in authgroups.split(',')] |
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| 462 | if RESPONSE is not None: |
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| 463 | RESPONSE.redirect('manage_main') |
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| 464 | |
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| 465 | |
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| 466 | |
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| 467 | |
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| 468 | # security.declareProtected('View management screens','renameImageForm') |
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| 469 | |
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| 470 | def manage_AddDocumentViewerForm(self): |
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| 471 | """add the viewer form""" |
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| 472 | pt=PageTemplateFile('zpt/addDocumentViewer', globals()).__of__(self) |
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| 473 | return pt() |
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| 474 | |
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| 475 | def manage_AddDocumentViewer(self,id,imageViewerUrl="",title="",RESPONSE=None): |
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| 476 | """add the viewer""" |
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| 477 | newObj=documentViewer(id,imageViewerUrl,title) |
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| 478 | self._setObject(id,newObj) |
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| 479 | |
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| 480 | if RESPONSE is not None: |
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| 481 | RESPONSE.redirect('manage_main') |
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| 482 | |
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| 483 | |
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| 484 | ## |
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| 485 | ## DocumentViewerTemplate class |
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| 486 | ## |
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| 487 | class DocumentViewerTemplate(ZopePageTemplate): |
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| 488 | """Template for document viewer""" |
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| 489 | meta_type="DocumentViewer Template" |
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| 490 | |
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| 491 | |
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| 492 | def manage_addDocumentViewerTemplateForm(self): |
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| 493 | """Form for adding""" |
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| 494 | pt=PageTemplateFile('zpt/addDocumentViewerTemplate', globals()).__of__(self) |
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| 495 | return pt() |
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| 496 | |
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| 497 | def manage_addDocumentViewerTemplate(self, id='viewer_main', title=None, text=None, |
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| 498 | REQUEST=None, submit=None): |
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| 499 | "Add a Page Template with optional file content." |
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| 500 | |
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| 501 | self._setObject(id, DocumentViewerTemplate(id)) |
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| 502 | ob = getattr(self, id) |
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| 503 | ob.pt_edit(open(os.path.join(package_home(globals()),'zpt/viewer_main.zpt')).read(),None) |
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| 504 | if title: |
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| 505 | ob.pt_setTitle(title) |
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| 506 | try: |
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| 507 | u = self.DestinationURL() |
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| 508 | except AttributeError: |
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| 509 | u = REQUEST['URL1'] |
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| 510 | |
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| 511 | u = "%s/%s" % (u, urllib.quote(id)) |
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| 512 | REQUEST.RESPONSE.redirect(u+'/manage_main') |
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| 513 | return '' |
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| 514 | |
|---|
| 515 | |
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| 516 | |
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