Mercurial > hg > purlService

comparison restService/redirector.py @ 5:3ebe37d81071

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addDri added reorganisation of the packafes
author dwinter
date Fri, 02 Nov 2012 09:01:35 +0100
parents redirector.py@caeede0c9464
children 5f5447b3a082
comparison
equal deleted inserted replaced
4:107f13ca333b 5:3ebe37d81071
1 '''
2 redirects depending on a configuration file an index.meta purl to an viewer
3 Created on 01.11.2012
4
5 @author: dwinter
6 '''
7
8 import web
9 import manageIndexMetaPURLs
10 import logging
11
12 class redirector:
13
14 viewers={} # hash mit allen viewer name --> urls
15 purlHandler=None
16 def __init__(self):
17 #read config file for the viewers
18 confFile= file("viewer.config")
19
20 self.purlHandler = manageIndexMetaPURLs.IndexMetaPURLManager()
21
22 for line in confFile.readlines():
23 splitted=line.split(",")
24
25 list=[]
26 if splitted[1]=="":
27 list.append(None) # index.meta werden von dieser einstellung nicht interpretiert
28 else:
29 list.append(splitted[1])
30
31 if len(splitted)>1: # url fur image viewer
32 if splitted[2]=="":
33 list.append(None) # index.meta werden von dieser einstellung nicht interpretiert
34 else:
35 list.append(splitted[2])
36 else:
37 list.append(None) # null wenn keiner konfiguriert wird. TODO: handle this
38
39
40 self.viewers[splitted[0]]=list
41
42 def GET(self,path):
43
44 splitted=path.split("/")
45 if len(splitted)!=2: #pfrad sollte zwei anteile habe "flavour/purl"
46 raise web.notfound("not found")
47
48 purl = splitted[1]
49 flavour = splitted[0]
50
51 if flavour not in self.viewers.keys():
52 raise web.notfound("no viewer for %s"%flavour)
53
54 formats = self.viewers[flavour]
55
56 viewerWithIndexMetaFormatString = formats[0];
57 viewerWithImagePathFormatString = formats[1];
58
59
60 # checke ob es einen Image path gibt
61 path,validity = self.purlHandler.getImagePathValidity(purl)
62 if path is not None and path!="":
63 return self.handlePath(path,validity,viewerWithImagePathFormatString)
64
65
66 path,validity = self.purlHandler.getPathValidity(purl)
67
68 if path is not None and path !="":
69 return self.handlePath(path,validity,viewerWithIndexMetaFormatString)
70
71
72
73 #handle path
74 def handlePath(self,path,validity,viewerFormatString):
75
76 if viewerFormatString is None or viewerFormatString=="":
77 raise web.internalerror("no viewer configure for indexMeta for this flavour")
78
79 if path is None:
80 raise web.notfound("Cannnot find a URL to this path")
81
82 if validity is manageIndexMetaPURLs.PERM_NON_VALID:
83 raise web.notfound("PURL NON VALID ANYMORE!")
84
85 if validity is manageIndexMetaPURLs.TEMP_NON_VALID:
86 return web.notfound("PURL currently not VALID try later!")
87
88
89 viewerUrl = viewerFormatString%path
90
91 print viewerUrl
92 raise web.redirect(viewerUrl,"302 found")
93
94 if __name__ == '__main__':
95 pass