def wsgibase(environ, responder):
"""
this is the gluon wsgi application. the furst function called when a page
is requested (static or dynamical). it can be called by paste.httpserver
or by apache mod_wsgi.
"""
request = Request()
response = Response()
session = Session()
try:
try:
session_file = None
session_new = False
# ##################################################
# parse the environment variables - DONE
# ##################################################
for (key, value) in environ.items():
request.env[key.lower().replace('.', '_')] = value
request.env.web2py_path = web2py_path
request.env.web2py_version = web2py_version
# ##################################################
# valudate the path in url
# ##################################################
if not request.env.path_info and request.env.request_uri:
# for fcgi, decode path_info and query_string
items = request.env.request_uri.split('?')
request.env.path_info = items[0]
if len(items) > 1:
request.env.query_string = items[1]
else:
request.env.query_string = ''
path = request.env.path_info[1:].replace('\\', '/')
path = regex_space.sub('_', path)
if not regex_url.match(path):
raise HTTP(400, error_message, web2py_error='invalid path')
items = path.split('/')
# ##################################################
# serve if a static file
# ##################################################
if len(items) > 1 and items[1] == 'static':
if len(items) < 3 or not items[2]:
raise HTTP(400, error_message)
static_file = os.path.join(request.env.web2py_path,
'applications', items[0], 'static',
'/'.join(items[2:]))
response.stream(static_file, request=request)
# ##################################################
# parse application, controller and function
# ##################################################
if len(items) and items[-1] == '':
del items[-1]
if len(items) == 0:
items = ['init']
if len(items) == 1:
items.append('default')
if len(items) == 2:
items.append('index')
if len(items) > 3:
(items, request.args) = (items[:3], items[3:])
if request.args == None:
request.args = []
request.application = items[0]
request.controller = items[1]
request.function = items[2]
request.client = get_client(request.env)
request.folder = os.path.join(request.env.web2py_path,
'applications',
request.application) + '/'
# ##################################################
# access the requested application
# ##################################################
if not os.path.exists(request.folder):
if items == ['init', 'default', 'index']:
items[0] = 'welcome'
redirect(html.URL(*items))
raise HTTP(400,
error_message,
web2py_error='invalid application')
# ##################################################
# get the GET and POST data -DONE
# ##################################################
request.body = tempfile.TemporaryFile()
if request.env.content_length:
copystream(request.env.wsgi_input, request.body,
int(request.env.content_length))
# ## parse GET vars, even if POST
dget = cgi.parse_qsl(request.env.query_string, keep_blank_values=1)
for (key, value) in dget:
if request.vars.has_key(key):
if isinstance(request.vars[key], list):
request.vars[key].append(value)
else:
request.vars[key] = [request.vars[key], value]
else:
request.vars[key] = value
request.get_vars[key] = request.vars[key]
# ## parse POST vars if any
if request.env.request_method in ['POST', 'BOTH']:
dpost = cgi.FieldStorage(fp=request.body,
environ=environ,
keep_blank_values=1)
request.body.seek(0)
try:
keys = dpost.keys()
except TypeError:
keys = []
for key in keys:
dpk = dpost[key]
if isinstance(dpk, list):
value = [x.value for x in dpk]
elif not dpk.filename:
value = dpk.value
else:
value = dpk
request.post_vars[key] = request.vars[key] = value
# ##################################################
# load cookies
# ##################################################
request.cookies = Cookie.SimpleCookie()
response.cookies = Cookie.SimpleCookie()
if request.env.http_cookie:
request.cookies.load(request.env.http_cookie)
# ##################################################
# try load session or create new session file
# ##################################################
session.connect(request, response)
# ##################################################
# set no-cache headers
# ##################################################
response.headers['Cache-Control'] = \
'no-store, no-cache, must-revalidate, post-check=0, pre-check=0'
response.headers['Expires'] = \
time.strftime('%a, %d %b %Y %H:%M:%S GMT',
time.gmtime())
response.headers['Pragma'] = 'no-cache'
# ##################################################
# run controller
# ##################################################
if not items[1] == 'static':
serve_controller(request, response, session)
except HTTP, http_response:
# ##################################################
# on sucess, try store session in database
# ##################################################
session._try_store_in_db(request, response)
# ##################################################
# on sucess, committ database
# ##################################################
if response._custom_commit:
response._custom_commit()
else:
SQLDB.close_all_instances(SQLDB.commit)
# ##################################################
# if session not in db try store session on filesystem
# ##################################################
session._try_store_on_disk(request, response)
# ##################################################
# store cookies in headers
# ##################################################
if session._secure:
response.cookies[response.session_id_name]['secure'] = \
True
http_response.headers['Set-Cookie'] = [
str(cookie)[11:] for cookie in response.cookies.values()
]
# ##################################################
# whatever happens return the intended HTTP response
# ##################################################
session._unlock(response)
return http_response.to(responder)
except RestrictedError, e:
# ##################################################
# on application error, rollback database
# ##################################################
if response._custom_rollback:
response._custom_rollback()
else:
SQLDB.close_all_instances(SQLDB.rollback)
try:
ticket = e.log(request)
except:
ticket = 'unknown'
logging.error(e.traceback)
session._unlock(response)
http_error_status = check_error_route(500, items[0])
return HTTP(http_error_status,
error_message_ticket % dict(ticket=ticket),
web2py_error='ticket %s' % ticket).to(responder)
