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import gdbm, time, pgp, strfile, pickle, string
import dpkg_packages, dpkg_util, dpkg_certificate
def parse_files (s):
lines = string.split (s, '\n')[:-1]
m = {}
for l in lines:
p = dpkg_certificate.parse_fline (l)
m[p['package']] = p
return m
class dpkg_filedb:
def __init__ (self, fn):
self.fn = fn
self.p = None
def store_certificate (self, c, log):
while 1:
try:
db = gdbm.open (self.fn, 'w')
break
except gdbm.error, v:
log.log ('info', "error %d opening gdbm file ('%s'), retrying" % v)
time.sleep (5)
if (self.p == None):
self.p = pickle.loads (db['.packages'])
pname = dpkg_packages.package_canon_name (c)
for f in c['data-files']:
n = f['name']
if (n[-1] == '/'):
n = n[:-1]
if (db.has_key (n)):
data = db[n]
else:
data = ''
data = data + pname + ' ' + dpkg_certificate.verification_data (f) + '\n'
db[n] = data
self.p[pname] = None
db['.packages'] = pickle.dumps (self.p)
db.close ()
def keys (self):
db = gdbm.open (self.fn, 'r')
r = db.keys (); db.close (); return r
def packages (self):
if (self.p == None):
db = gdbm.open (self.fn, 'r')
self.p = pickle.loads (db['.packages'])
db.close ();
return self.p.keys ()
def create (self):
db = gdbm.open (self.fn, 'c')
if (not db.has_key ('.packages')):
db['.packages'] = pickle.dumps ({})
db.close ()
def clear (self):
db = gdbm.open (self.fn, 'n')
db.close ()
def fetch_file (self, key):
db = gdbm.open (self.fn, 'r')
r = db[key]; db.close (); return r
def iterate (self, f):
db = gdbm.open (self.fn, 'r')
for key in db.keys():
f (key, db)
def has_key (self, key):
db = gdbm.open (self.fn, 'r')
r = db.has_key (key); db.close (); return r
def close (self):
pass
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