Gecko [ emad.team ]

Name	Size	Permission	Date
auth	[ DIR ]	drwxr-xr-x	2022-08-06 15:50
cowbell	[ DIR ]	drwxr-xr-x	2022-08-06 15:50
debug	[ DIR ]	drwxr-xr-x	2022-08-06 15:50
evalexception	[ DIR ]	drwxr-xr-x	2022-08-06 15:50
exceptions	[ DIR ]	drwxr-xr-x	2022-08-06 15:50
util	[ DIR ]	drwxr-xr-x	2022-08-06 15:50
cascade.py	4.4 KB	-rw-r--r--	2011-12-21 20:42
cascade.pyc	4.23 KB	-rw-r--r--	2014-09-17 20:43
cascade.pyo	4.23 KB	-rw-r--r--	2014-09-17 20:43
cgiapp.py	9.37 KB	-rw-r--r--	2011-12-21 20:42
cgiapp.pyc	8.08 KB	-rw-r--r--	2014-09-17 20:43
cgiapp.pyo	7.87 KB	-rw-r--r--	2014-09-17 20:43
cgitb_catcher.py	3.66 KB	-rw-r--r--	2011-12-21 20:42
cgitb_catcher.pyc	3.64 KB	-rw-r--r--	2014-09-17 20:43
cgitb_catcher.pyo	3.64 KB	-rw-r--r--	2014-09-17 20:43
config.py	4.21 KB	-rw-r--r--	2011-12-21 20:42
config.pyc	4.99 KB	-rw-r--r--	2014-09-17 20:43
config.pyo	4.99 KB	-rw-r--r--	2014-09-17 20:43
errordocument.py	13.45 KB	-rw-r--r--	2011-12-21 20:42
errordocument.pyc	12.47 KB	-rw-r--r--	2014-09-17 20:43
errordocument.pyo	12.47 KB	-rw-r--r--	2014-09-17 20:43
fileapp.py	13.29 KB	-rw-r--r--	2011-12-21 20:42
fileapp.pyc	12.6 KB	-rw-r--r--	2014-09-17 20:43
fileapp.pyo	12.48 KB	-rw-r--r--	2014-09-17 20:43
fixture.py	56.63 KB	-rw-r--r--	2014-09-17 20:43
fixture.py.stdlib	56.71 KB	-rw-r--r--	2011-12-21 20:42
fixture.pyc	57.42 KB	-rw-r--r--	2014-09-17 20:43
fixture.pyo	55.18 KB	-rw-r--r--	2014-09-17 20:43
flup_session.py	3.85 KB	-rw-r--r--	2011-12-21 20:42
flup_session.pyc	3.77 KB	-rw-r--r--	2014-09-17 20:43
flup_session.pyo	3.77 KB	-rw-r--r--	2014-09-17 20:43
gzipper.py	3.61 KB	-rw-r--r--	2011-12-21 20:42
gzipper.pyc	4.28 KB	-rw-r--r--	2014-09-17 20:43
gzipper.pyo	4.28 KB	-rw-r--r--	2014-09-17 20:43
httpexceptions.py	23.65 KB	-rw-r--r--	2011-12-21 20:42
httpexceptions.pyc	26.94 KB	-rw-r--r--	2014-09-17 20:43
httpexceptions.pyo	26.2 KB	-rw-r--r--	2014-09-17 20:43
httpheaders.py	42.08 KB	-rw-r--r--	2011-12-21 20:42
httpheaders.pyc	43.1 KB	-rw-r--r--	2014-09-17 20:43
httpheaders.pyo	41.88 KB	-rw-r--r--	2014-09-17 20:43
httpserver.py	54.36 KB	-rw-r--r--	2011-12-21 20:42
httpserver.pyc	46.26 KB	-rw-r--r--	2014-09-17 20:43
httpserver.pyo	45.61 KB	-rw-r--r--	2014-09-17 20:43
lint.py	14.65 KB	-rw-r--r--	2011-12-21 20:42
lint.pyc	16.94 KB	-rw-r--r--	2014-09-17 20:43
lint.pyo	12.91 KB	-rw-r--r--	2014-09-17 20:43
modpython.py	7.79 KB	-rw-r--r--	2011-12-21 20:42
modpython.pyc	8.44 KB	-rw-r--r--	2014-09-17 20:43
modpython.pyo	8.44 KB	-rw-r--r--	2014-09-17 20:43
pony.py	2.23 KB	-rw-r--r--	2011-12-21 20:42
pony.pyc	2.62 KB	-rw-r--r--	2014-09-17 20:43
pony.pyo	2.62 KB	-rw-r--r--	2014-09-17 20:43
progress.py	7.97 KB	-rw-r--r--	2011-12-21 20:42
progress.pyc	8.93 KB	-rw-r--r--	2014-09-17 20:43
progress.pyo	8.93 KB	-rw-r--r--	2014-09-17 20:43
proxy.py	9.94 KB	-rw-r--r--	2011-12-21 20:42
proxy.pyc	8.33 KB	-rw-r--r--	2014-09-17 20:43
proxy.pyo	8.33 KB	-rw-r--r--	2014-09-17 20:43
recursive.py	14.32 KB	-rw-r--r--	2011-12-21 20:42
recursive.pyc	17.1 KB	-rw-r--r--	2014-09-17 20:43
recursive.pyo	16.79 KB	-rw-r--r--	2014-09-17 20:43
registry.py	21.67 KB	-rw-r--r--	2011-12-21 20:42
registry.pyc	21.76 KB	-rw-r--r--	2014-09-17 20:43
registry.pyo	21.76 KB	-rw-r--r--	2014-09-17 20:43
reloader.py	5.87 KB	-rw-r--r--	2011-12-21 20:42
reloader.pyc	5.82 KB	-rw-r--r--	2014-09-17 20:43
reloader.pyo	5.82 KB	-rw-r--r--	2014-09-17 20:43
request.py	13.81 KB	-rw-r--r--	2011-12-21 20:42
request.pyc	13.33 KB	-rw-r--r--	2014-09-17 20:43
request.pyo	13.24 KB	-rw-r--r--	2014-09-17 20:43
response.py	7.48 KB	-rw-r--r--	2011-12-21 20:42
response.pyc	8.9 KB	-rw-r--r--	2014-09-17 20:43
response.pyo	8.82 KB	-rw-r--r--	2014-09-17 20:43
session.py	11.07 KB	-rw-r--r--	2011-12-21 20:42
session.pyc	11.34 KB	-rw-r--r--	2014-09-17 20:43
session.pyo	11.34 KB	-rw-r--r--	2014-09-17 20:43
transaction.py	4.26 KB	-rw-r--r--	2011-12-21 20:42
transaction.pyc	5.49 KB	-rw-r--r--	2014-09-17 20:43
transaction.pyo	5.49 KB	-rw-r--r--	2014-09-17 20:43
translogger.py	4.7 KB	-rw-r--r--	2011-12-21 20:42
translogger.pyc	4.15 KB	-rw-r--r--	2014-09-17 20:43
translogger.pyo	4.15 KB	-rw-r--r--	2014-09-17 20:43
url.py	14.28 KB	-rw-r--r--	2011-12-21 20:42
url.pyc	17.29 KB	-rw-r--r--	2014-09-17 20:43
url.pyo	17.29 KB	-rw-r--r--	2014-09-17 20:43
urlmap.py	8.82 KB	-rw-r--r--	2011-12-21 20:42
urlmap.pyc	9.15 KB	-rw-r--r--	2014-09-17 20:43
urlmap.pyo	9.01 KB	-rw-r--r--	2014-09-17 20:43
urlparser.py	25.8 KB	-rw-r--r--	2011-12-21 20:42
urlparser.pyc	21.52 KB	-rw-r--r--	2014-09-17 20:43
urlparser.pyo	21.34 KB	-rw-r--r--	2014-09-17 20:43
wsgilib.py	19.66 KB	-rw-r--r--	2011-12-21 20:42
wsgilib.pyc	20.91 KB	-rw-r--r--	2014-09-17 20:43
wsgilib.pyo	20.86 KB	-rw-r--r--	2014-09-17 20:43
wsgiwrappers.py	21.65 KB	-rw-r--r--	2011-12-21 20:42
wsgiwrappers.pyc	23.21 KB	-rw-r--r--	2014-09-17 20:43
wsgiwrappers.pyo	23.21 KB	-rw-r--r--	2014-09-17 20:43

Rename

# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
# (c) 2005 Clark C. Evans
# This module is part of the Python Paste Project and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
"""
Middleware related to transactions and database connections.

At this time it is very basic; but will eventually sprout all that
two-phase commit goodness that I don't need.

.. note::

This is experimental, and will change in the future.
"""
from paste.httpexceptions import HTTPException
from wsgilib import catch_errors

class TransactionManagerMiddleware(object):

def __init__(self, application):
        self.application = application

def __call__(self, environ, start_response):
        environ['paste.transaction_manager'] = manager = Manager()
        # This makes sure nothing else traps unexpected exceptions:
        environ['paste.throw_errors'] = True
        return catch_errors(self.application, environ, start_response,
                            error_callback=manager.error,
                            ok_callback=manager.finish)

class Manager(object):

def __init__(self):
        self.aborted = False
        self.transactions = []

def abort(self):
        self.aborted = True

def error(self, exc_info):
        self.aborted = True
        self.finish()

def finish(self):
        for trans in self.transactions:
            if self.aborted:
                trans.rollback()
            else:
                trans.commit()

class ConnectionFactory(object):
    """
    Provides a callable interface for connecting to ADBAPI databases in
    a WSGI style (using the environment).  More advanced connection
    factories might use the REMOTE_USER and/or other environment
    variables to make the connection returned depend upon the request.
    """
    def __init__(self, module, *args, **kwargs):
        #assert getattr(module,'threadsaftey',0) > 0
        self.module = module
        self.args = args
        self.kwargs = kwargs

# deal with database string quoting issues
        self.quote = lambda s: "'%s'" % s.replace("'","''")
        if hasattr(self.module,'PgQuoteString'):
            self.quote = self.module.PgQuoteString

def __call__(self, environ=None):
        conn = self.module.connect(*self.args, **self.kwargs)
        conn.__dict__['module'] = self.module
        conn.__dict__['quote'] = self.quote
        return conn

def BasicTransactionHandler(application, factory):
    """
    Provides a simple mechanism for starting a transaction based on the
    factory; and for either committing or rolling back the transaction
    depending on the result.  It checks for the response's current
    status code either through the latest call to start_response; or
    through a HTTPException's code.  If it is a 100, 200, or 300; the
    transaction is committed; otherwise it is rolled back.
    """
    def basic_transaction(environ, start_response):
        conn = factory(environ)
        environ['paste.connection'] = conn
        should_commit = [500]
        def finalizer(exc_info=None):
            if exc_info:
                if isinstance(exc_info[1], HTTPException):
                    should_commit.append(exc_info[1].code)
            if should_commit.pop() < 400:
                conn.commit()
            else:
                try:
                    conn.rollback()
                except:
                    # TODO: check if rollback has already happened
                    return
            conn.close()
        def basictrans_start_response(status, headers, exc_info = None):
            should_commit.append(int(status.split(" ")[0]))
            return start_response(status, headers, exc_info)
        return catch_errors(application, environ, basictrans_start_response,
                            finalizer, finalizer)
    return basic_transaction

__all__ = ['ConnectionFactory', 'BasicTransactionHandler']

if '__main__' == __name__ and False:
    from pyPgSQL import PgSQL
    factory = ConnectionFactory(PgSQL, database="testing")
    conn = factory()
    curr = conn.cursor()
    curr.execute("SELECT now(), %s" % conn.quote("B'n\\'gles"))
    (time, bing) = curr.fetchone()
    print bing, time