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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
This file is part of the web2py Web Framework
Developed by Massimo Di Pierro <mdipierro@cs.depaul.edu>,
limodou <limodou@gmail.com> and srackham <srackham@gmail.com>.
License: LGPLv3 (http://www.gnu.org/licenses/lgpl.html)
"""
import os
import sys
import code
import logging
import types
import re
import optparse
import glob
import traceback
import fileutils
import settings
from utils import web2py_uuid
from compileapp import build_environment, read_pyc, run_models_in
from restricted import RestrictedError
from globals import Request, Response, Session
from storage import Storage
from admin import w2p_unpack
from dal import BaseAdapter
logger = logging.getLogger("web2py")
def exec_environment(
pyfile='',
request=None,
response=None,
session=None,
):
"""
.. function:: gluon.shell.exec_environment([pyfile=''[, request=Request()
[, response=Response[, session=Session()]]]])
Environment builder and module loader.
Builds a web2py environment and optionally executes a Python
file into the environment.
A Storage dictionary containing the resulting environment is returned.
The working directory must be web2py root -- this is the web2py default.
"""
if request is None: request = Request()
if response is None: response = Response()
if session is None: session = Session()
if request.folder is None:
mo = re.match(r'(|.*/)applications/(?P<appname>[^/]+)', pyfile)
if mo:
appname = mo.group('appname')
request.folder = os.path.join('applications', appname)
else:
request.folder = ''
env = build_environment(request, response, session, store_current=False)
if pyfile:
pycfile = pyfile + 'c'
if os.path.isfile(pycfile):
exec read_pyc(pycfile) in env
else:
execfile(pyfile, env)
return Storage(env)
def env(
a,
import_models=False,
c=None,
f=None,
dir='',
extra_request={},
):
"""
Return web2py execution environment for application (a), controller (c),
function (f).
If import_models is True the exec all application models into the
environment.
extra_request allows you to pass along any extra
variables to the request object before your models
get executed. This was mainly done to support
web2py_utils.test_runner, however you can use it
with any wrapper scripts that need access to the
web2py environment.
"""
request = Request()
response = Response()
session = Session()
request.application = a
# Populate the dummy environment with sensible defaults.
if not dir:
request.folder = os.path.join('applications', a)
else:
request.folder = dir
request.controller = c or 'default'
request.function = f or 'index'
response.view = '%s/%s.html' % (request.controller,
request.function)
request.env.path_info = '/%s/%s/%s' % (a, c, f)
request.env.http_host = '127.0.0.1:8000'
request.env.remote_addr = '127.0.0.1'
request.env.web2py_runtime_gae = settings.global_settings.web2py_runtime_gae
for k,v in extra_request.items():
request[k] = v
# Monkey patch so credentials checks pass.
def check_credentials(request, other_application='admin'):
return True
fileutils.check_credentials = check_credentials
environment = build_environment(request, response, session)
if import_models:
try:
run_models_in(environment)
except RestrictedError, e:
sys.stderr.write(e.traceback+'\n')
sys.exit(1)
environment['__name__'] = '__main__'
return environment
def exec_pythonrc():
pythonrc = os.environ.get('PYTHONSTARTUP')
if pythonrc and os.path.isfile(pythonrc):
try:
execfile(pythonrc)
except NameError:
pass
def run(
appname,
plain=False,
import_models=False,
startfile=None,
bpython=False,
python_code=False
):
"""
Start interactive shell or run Python script (startfile) in web2py
controller environment. appname is formatted like:
a web2py application name
a/c exec the controller c into the application environment
"""
(a, c, f) = parse_path_info(appname)
errmsg = 'invalid application name: %s' % appname
if not a:
die(errmsg)
adir = os.path.join('applications', a)
if not os.path.exists(adir):
if raw_input('application %s does not exist, create (y/n)?'
% a).lower() in ['y', 'yes']:
os.mkdir(adir)
w2p_unpack('welcome.w2p', adir)
for subfolder in ['models','views','controllers', 'databases',
'modules','cron','errors','sessions',
'languages','static','private','uploads']:
subpath = os.path.join(adir,subfolder)
if not os.path.exists(subpath):
os.mkdir(subpath)
db = os.path.join(adir,'models/db.py')
if os.path.exists(db):
data = fileutils.read_file(db)
data = data.replace('<your secret key>','sha512:'+web2py_uuid())
fileutils.write_file(db, data)
if c:
import_models = True
_env = env(a, c=c, import_models=import_models)
if c:
cfile = os.path.join('applications', a, 'controllers', c + '.py')
if not os.path.isfile(cfile):
cfile = os.path.join('applications', a, 'compiled', "controllers_%s_%s.pyc" % (c,f))
if not os.path.isfile(cfile):
die(errmsg)
else:
exec read_pyc(cfile) in _env
else:
execfile(cfile, _env)
if f:
exec ('print %s()' % f, _env)
elif startfile:
exec_pythonrc()
try:
execfile(startfile, _env)
if import_models: BaseAdapter.close_all_instances('commit')
except Exception, e:
print traceback.format_exc()
if import_models: BaseAdapter.close_all_instances('rollback')
elif python_code:
exec_pythonrc()
try:
exec(python_code, _env)
if import_models: BaseAdapter.close_all_instances('commit')
except Exception, e:
print traceback.format_exc()
if import_models: BaseAdapter.close_all_instances('rollback')
else:
if not plain:
if bpython:
try:
import bpython
bpython.embed(locals_=_env)
return
except:
logger.warning(
'import bpython error; trying ipython...')
else:
try:
import IPython
if IPython.__version__ >= '0.11':
from IPython.frontend.terminal.embed import InteractiveShellEmbed
shell = InteractiveShellEmbed(user_ns=_env)
shell()
return
else:
# following 2 lines fix a problem with
# IPython; thanks Michael Toomim
if '__builtins__' in _env:
del _env['__builtins__']
shell = IPython.Shell.IPShell(argv=[],user_ns=_env)
shell.mainloop()
return
except:
logger.warning(
'import IPython error; use default python shell')
try:
import readline
import rlcompleter
except ImportError:
pass
else:
readline.set_completer(rlcompleter.Completer(_env).complete)
readline.parse_and_bind('tab:complete')
exec_pythonrc()
code.interact(local=_env)
def parse_path_info(path_info):
"""
Parse path info formatted like a/c/f where c and f are optional
and a leading / accepted.
Return tuple (a, c, f). If invalid path_info a is set to None.
If c or f are omitted they are set to None.
"""
mo = re.match(r'^/?(?P<a>\w+)(/(?P<c>\w+)(/(?P<f>\w+))?)?$',
path_info)
if mo:
return (mo.group('a'), mo.group('c'), mo.group('f'))
else:
return (None, None, None)
def die(msg):
print >> sys.stderr, msg
sys.exit(1)
def test(testpath, import_models=True, verbose=False):
"""
Run doctests in web2py environment. testpath is formatted like:
a tests all controllers in application a
a/c tests controller c in application a
a/c/f test function f in controller c, application a
Where a, c and f are application, controller and function names
respectively. If the testpath is a file name the file is tested.
If a controller is specified models are executed by default.
"""
import doctest
if os.path.isfile(testpath):
mo = re.match(r'(|.*/)applications/(?P<a>[^/]+)', testpath)
if not mo:
die('test file is not in application directory: %s'
% testpath)
a = mo.group('a')
c = f = None
files = [testpath]
else:
(a, c, f) = parse_path_info(testpath)
errmsg = 'invalid test path: %s' % testpath
if not a:
die(errmsg)
cdir = os.path.join('applications', a, 'controllers')
if not os.path.isdir(cdir):
die(errmsg)
if c:
cfile = os.path.join(cdir, c + '.py')
if not os.path.isfile(cfile):
die(errmsg)
files = [cfile]
else:
files = glob.glob(os.path.join(cdir, '*.py'))
for testfile in files:
globs = env(a, import_models)
ignores = globs.keys()
execfile(testfile, globs)
def doctest_object(name, obj):
"""doctest obj and enclosed methods and classes."""
if type(obj) in (types.FunctionType, types.TypeType,
types.ClassType, types.MethodType,
types.UnboundMethodType):
# Reload environment before each test.
globs = env(a, c=c, f=f, import_models=import_models)
execfile(testfile, globs)
doctest.run_docstring_examples(obj, globs=globs,
name='%s: %s' % (os.path.basename(testfile),
name), verbose=verbose)
if type(obj) in (types.TypeType, types.ClassType):
for attr_name in dir(obj):
# Execute . operator so decorators are executed.
o = eval('%s.%s' % (name, attr_name), globs)
doctest_object(attr_name, o)
for (name, obj) in globs.items():
if name not in ignores and (f is None or f == name):
doctest_object(name, obj)
def get_usage():
usage = """
%prog [options] pythonfile
"""
return usage
def execute_from_command_line(argv=None):
if argv is None:
argv = sys.argv
parser = optparse.OptionParser(usage=get_usage())
parser.add_option('-S', '--shell', dest='shell', metavar='APPNAME',
help='run web2py in interactive shell or IPython(if installed) ' + \
'with specified appname')
msg = 'run web2py in interactive shell or bpython (if installed) with'
msg += ' specified appname (if app does not exist it will be created).'
msg += '\n Use combined with --shell'
parser.add_option(
'-B',
'--bpython',
action='store_true',
default=False,
dest='bpython',
help=msg,
)
parser.add_option(
'-P',
'--plain',
action='store_true',
default=False,
dest='plain',
help='only use plain python shell, should be used with --shell option',
)
parser.add_option(
'-M',
'--import_models',
action='store_true',
default=False,
dest='import_models',
help='auto import model files, default is False, ' + \
' should be used with --shell option',
)
parser.add_option(
'-R',
'--run',
dest='run',
metavar='PYTHON_FILE',
default='',
help='run PYTHON_FILE in web2py environment, ' + \
'should be used with --shell option',
)
(options, args) = parser.parse_args(argv[1:])
if len(sys.argv) == 1:
parser.print_help()
sys.exit(0)
if len(args) > 0:
startfile = args[0]
else:
startfile = ''
run(options.shell, options.plain, startfile=startfile, bpython=options.bpython)
if __name__ == '__main__':
execute_from_command_line()
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