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from django.http import HttpResponse
from django.db import connection
from django.utils.functional import SimpleLazyObject
def validate_new_user(username, email, firstname, lastname):
# Only allow user creation if they are already a subscriber
curs = connection.cursor()
curs.execute("SELECT EXISTS(SELECT 1 FROM listsubscribers WHERE username=%(username)s)", {
'username': username,
})
if curs.fetchone()[0]:
# User is subscribed to something, so allow creation
return None
return HttpResponse("You are not currently subscribed to any mailing list on this server. Account not created.")
def _get_gitrev():
# Return the current git revision, that is used for
# cache-busting URLs.
try:
with open('../.git/refs/heads/master') as f:
return f.readline()[:8]
except IOError:
# A "git gc" will remove the ref and replace it with a packed-refs.
try:
with open('../.git/packed-refs') as f:
for l in f.readlines():
if l.endswith("refs/heads/master\n"):
return l[:8]
# Not found in packed-refs. Meh, just make one up.
return 'ffffffff'
except IOError:
# If packed-refs also can't be read, just give up
return 'eeeeeeee'
# Template context processor to add information about the root link and
# the current git revision. git revision is returned as a lazy object so
# we don't spend effort trying to load it if we don't need it (though
# all general pages will need it since it's used to render the css urls)
def PGWebContextProcessor(request):
gitrev = SimpleLazyObject(_get_gitrev)
return {
'gitrev': gitrev,
}
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