Mercurial > p > roundup > code

annotate roundup/backends/sessions.py @ 1075:4af69ca380bd

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
more 'n' -> 'c' :(
author Richard Jones <richard@users.sourceforge.net>
date Mon, 09 Sep 2002 02:58:35 +0000
parents 76b783c69976
children 32e41ddf2edb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1075
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
1 #$Id: sessions.py,v 1.2 2002-09-09 02:58:35 richard Exp $
916
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
2 '''
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
3 This module defines a very basic store that's used by the CGI interface
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
4 to store session information.
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
5 '''
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
6
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
7 import anydbm, whichdb, os, marshal
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
8
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
9 class Sessions:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
10 ''' Back onto an anydbm store.
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
11
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
12 Keys are session id strings, values are marshalled data.
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
13 '''
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
14 def __init__(self, config):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
15 self.config = config
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
16 self.dir = config.DATABASE
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
17 # ensure files are group readable and writable
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
18 os.umask(0002)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
19
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
20 def clear(self):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
21 path = os.path.join(self.dir, 'sessions')
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
22 if os.path.exists(path):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
23 os.remove(path)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
24 elif os.path.exists(path+'.db'): # dbm appends .db
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
25 os.remove(path+'.db')
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
26
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
27 def determine_db_type(self, path):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
28 ''' determine which DB wrote the class file
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
29 '''
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
30 db_type = ''
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
31 if os.path.exists(path):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
32 db_type = whichdb.whichdb(path)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
33 if not db_type:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
34 raise hyperdb.DatabaseError, "Couldn't identify database type"
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
35 elif os.path.exists(path+'.db'):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
36 # if the path ends in '.db', it's a dbm database, whether
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
37 # anydbm says it's dbhash or not!
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
38 db_type = 'dbm'
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
39 return db_type
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
40
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
41 def get(self, sessionid, value):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
42 db = self.opendb('c')
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
43 try:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
44 if db.has_key(sessionid):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
45 values = marshal.loads(db[sessionid])
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
46 else:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
47 return None
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
48 return values.get(value, None)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
49 finally:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
50 db.close()
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
51
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
52 def set(self, sessionid, **newvalues):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
53 db = self.opendb('c')
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
54 try:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
55 if db.has_key(sessionid):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
56 values = marshal.loads(db[sessionid])
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
57 else:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
58 values = {}
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
59 values.update(newvalues)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
60 db[sessionid] = marshal.dumps(values)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
61 finally:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
62 db.close()
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
63
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
64 def list(self):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
65 db = self.opendb('r')
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
66 try:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
67 return db.keys()
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
68 finally:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
69 db.close()
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
70
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
71 def destroy(self, sessionid):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
72 db = self.opendb('c')
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
73 try:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
74 if db.has_key(sessionid):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
75 del db[sessionid]
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
76 finally:
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
77 db.close()
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
78
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
79 def opendb(self, mode):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
80 '''Low-level database opener that gets around anydbm/dbm
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
81 eccentricities.
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
82 '''
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
83 # figure the class db type
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
84 path = os.path.join(os.getcwd(), self.dir, 'sessions')
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
85 db_type = self.determine_db_type(path)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
86
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
87 # new database? let anydbm pick the best dbm
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
88 if not db_type:
1075
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
89 return anydbm.open(path, 'c')
916
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
90
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
91 # open the database with the correct module
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
92 dbm = __import__(db_type)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
93 return dbm.open(path, mode)
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
94
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
95 def commit(self):
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
96 pass
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
97
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
98 #
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
99 #$Log: not supported by cvs2svn $
1075
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
100 #Revision 1.1 2002/07/30 08:22:38 richard
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
101 #Session storage in the hyperdb was horribly, horribly inefficient. We use
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
102 #a simple anydbm wrapper now - which could be overridden by the metakit
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
103 #backend or RDB backend if necessary.
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
104 #Much, much better.
916
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
105 #
76b783c69976 Session storage in the hyperdb was horribly, horribly inefficient.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
106 #
1075
4af69ca380bd more 'n' -> 'c' :(
Richard Jones <richard@users.sourceforge.net>
parents: 916
diff changeset
107 #
Roundup Issue Tracker: http://roundup-tracker.org/