def __call__(self, environ, start_response):
"""Resolves the URL in PATH_INFO, and uses wsgi.routing_args
to pass on URL resolver results."""
old_method = None
if self.use_method_override:
req = None
# In some odd cases, there's no query string
try:
qs = environ['QUERY_STRING']
except KeyError:
qs = ''
if '_method' in qs:
req = Request(environ)
req.errors = 'ignore'
if '_method' in req.GET:
old_method = environ['REQUEST_METHOD']
environ['REQUEST_METHOD'] = req.GET['_method'].upper()
if self.log_debug:
log.debug("_method found in QUERY_STRING, altering request"
" method to %s", environ['REQUEST_METHOD'])
elif environ['REQUEST_METHOD'] == 'POST' and is_form_post(environ):
if req is None:
req = Request(environ)
req.errors = 'ignore'
if '_method' in req.POST:
old_method = environ['REQUEST_METHOD']
environ['REQUEST_METHOD'] = req.POST['_method'].upper()
if self.log_debug:
log.debug("_method found in POST data, altering request "
"method to %s", environ['REQUEST_METHOD'])
# Run the actual route matching
# -- Assignment of environ to config triggers route matching
if self.singleton:
config = request_config()
config.mapper = self.mapper
config.environ = environ
match = config.mapper_dict
route = config.route
else:
results = self.mapper.routematch(environ=environ)
if results:
match, route = results[0], results[1]
else:
match = route = None
if old_method:
environ['REQUEST_METHOD'] = old_method
if not match:
match = {}
if self.log_debug:
urlinfo = "%s %s" % (environ['REQUEST_METHOD'], environ['PATH_INFO'])
log.debug("No route matched for %s", urlinfo)
elif self.log_debug:
urlinfo = "%s %s" % (environ['REQUEST_METHOD'], environ['PATH_INFO'])
log.debug("Matched %s", urlinfo)
log.debug("Route path: '%s', defaults: %s", route.routepath,
route.defaults)
log.debug("Match dict: %s", match)
url = URLGenerator(self.mapper, environ)
environ['wsgiorg.routing_args'] = ((url), match)
environ['routes.route'] = route
environ['routes.url'] = url
if route and route.redirect:
route_name = '_redirect_%s' % id(route)
location = url_for(route_name, **match)
log.debug("Using redirect route, redirect to '%s' with status"
"code: %s", location, route.redirect_status)
start_response(route.redirect_status,
[('Content-Type', 'text/plain; charset=utf8'),
('Location', location)])
return []
# If the route included a path_info attribute and it should be used to
# alter the environ, we'll pull it out
if self.path_info and 'path_info' in match:
oldpath = environ['PATH_INFO']
newpath = match.get('path_info') or ''
environ['PATH_INFO'] = newpath
if not environ['PATH_INFO'].startswith('/'):
environ['PATH_INFO'] = '/' + environ['PATH_INFO']
environ['SCRIPT_NAME'] += re.sub(r'^(.*?)/' + re.escape(newpath) + '$',
r'\1', oldpath)
response = self.app(environ, start_response)
# Wrapped in try as in rare cases the attribute will be gone already
try:
del self.mapper.environ
except AttributeError:
pass
return response
def __call__(self, environ, start_response):
"""Resolves the URL in PATH_INFO, and uses wsgi.routing_args
to pass on URL resolver results."""
config = request_config()
config.mapper = self.mapper
old_method = None
if self.use_method_override:
req = None
# In some odd cases, there's no query string
try:
qs = environ['QUERY_STRING']
except KeyError:
qs = ''
if '_method' in qs:
req = Request(environ)
req.errors = 'ignore'
if '_method' in req.GET:
old_method = environ['REQUEST_METHOD']
environ['REQUEST_METHOD'] = req.GET['_method'].upper()
if self.log_debug:
log.debug(
"_method found in QUERY_STRING, altering request"
" method to %s", environ['REQUEST_METHOD'])
elif environ['REQUEST_METHOD'] == 'POST' and is_form_post(environ):
if req is None:
req = Request(environ)
req.errors = 'ignore'
if '_method' in req.POST:
old_method = environ['REQUEST_METHOD']
environ['REQUEST_METHOD'] = req.POST['_method'].upper()
if self.log_debug:
log.debug(
"_method found in POST data, altering request "
"method to %s", environ['REQUEST_METHOD'])
# Run the actual route matching
# -- Assignment of environ to config triggers route matching
config.environ = environ
match = config.mapper_dict
route = config.route
if old_method:
environ['REQUEST_METHOD'] = old_method
if not match:
match = {}
if self.log_debug:
urlinfo = "%s %s" % (environ['REQUEST_METHOD'],
environ['PATH_INFO'])
log.debug("No route matched for %s", urlinfo)
elif self.log_debug:
urlinfo = "%s %s" % (environ['REQUEST_METHOD'],
environ['PATH_INFO'])
log.debug("Matched %s", urlinfo)
log.debug("Route path: '%s', defaults: %s", route.routepath,
route.defaults)
log.debug("Match dict: %s", match)
url = URLGenerator(self.mapper, environ)
environ['wsgiorg.routing_args'] = ((url), match)
environ['routes.route'] = route
environ['routes.url'] = url
if route and route.redirect:
route_name = '_redirect_%s' % id(route)
location = url_for(route_name, **match)
log.debug(
"Using redirect route, redirect to '%s' with status"
"code: %s", location, route.redirect_status)
start_response(route.redirect_status,
[('Content-Type', 'text/plain; charset=utf8'),
('Location', location)])
return []
# If the route included a path_info attribute and it should be used to
# alter the environ, we'll pull it out
if self.path_info and 'path_info' in match:
oldpath = environ['PATH_INFO']
newpath = match.get('path_info') or ''
environ['PATH_INFO'] = newpath
if not environ['PATH_INFO'].startswith('/'):
environ['PATH_INFO'] = '/' + environ['PATH_INFO']
environ['SCRIPT_NAME'] += re.sub(
r'^(.*?)/' + re.escape(newpath) + '$', r'\1', oldpath)
if environ['SCRIPT_NAME'].endswith('/'):
environ['SCRIPT_NAME'] = environ['SCRIPT_NAME'][:-1]
response = self.app(environ, start_response)
# Wrapped in try as in rare cases the attribute will be gone already
try:
del config.environ
del self.mapper.environ
except AttributeError:
pass
return response
def __call__(self, environ, start_response):
"""
A Router instance is a WSGI app. It accepts the standard WSGI call
signature of ``environ``, ``start_response``.
The Router has a few jobs. First it uses the Routes package to
compare the requested path to available url patterns that have
been loaded and passed to the Router upon init.
Router is the most *framework-like* component of Pybald. In addition to
dispatching urls to controllers, it also allows 'method override'
behavior allowing other HTTP methods to be invoked such as ``put`` and
``delete`` from web clients that don't support them natively.
:param environ: WSGI CGI-like request environment
:param start_response: WSGI callback for starting the response and
setting HTTP response headers
"""
req = Request(environ)
req.errors = "ignore"
# method override
# ===============
# for REST architecture, this allows a POST parameter of _method
# to be used to override POST with alternate HTTP verbs (PUT, DELETE)
if req.POST:
override_method = req.POST.pop("_method", None)
if override_method is not None:
environ["REQUEST_METHOD"] = override_method.upper()
console.debug("Changing request method to {0}".format(environ["REQUEST_METHOD"]))
results = self.map.routematch(environ=environ)
if results:
match, route = results[0], results[1]
else:
match = route = None
url = URLGenerator(self.map, environ)
config = request_config()
# Your mapper object
config.mapper = self.map
# The dict from m.match for this URL request
config.mapper_dict = match
config.host = req.host
config.protocol = req.scheme
# host_port
# defines the redirect method. In this case it generates a
# Webob Response object with the location and status headers
# set
config.redirect = lambda url: Response(location=url, status=302)
environ.update(
{"wsgiorg.routing_args": ((url), match), "routes.route": route, "routes.url": url, "pybald.router": self}
)
# Add pybald extension
# the pybald.extension is a dictionary that can be used to copy state
# into a running controller (usually handled by the @action decorator)
environ.setdefault("pybald.extension", {})["url_for"] = url
# debug print messages
console.debug("{0:=^79}".format(" {0} ".format(req.path_qs)))
console.debug("Method: {0}".format(req.method))
# use routes to match the url to a path
# urlvars will contain controller + other non query string
# URL data. Middleware above this can override and set urlvars
# and the router will use those values.
# TODO: allow individual variable overrides?
urlvars = environ.get("urlvars", match) or {}
# lifted from Routes middleware, handles 'redirect'
# routes (map.redirect)
if route and route.redirect:
route_name = "_redirect_{0}".format(id(route))
location = url(route_name, **match)
return Response(location=location, status=route.redirect_status)(environ, start_response)
req.urlvars = urlvars
environ["urlvars"] = urlvars
if urlvars:
controller, handler = self.get_handler(urlvars)
# No URL vars means nothing matched in the mapper function
else:
raise exc.HTTPNotFound("No URL match")
try:
# call the action we determined from the mapper
return handler(environ, start_response)
# This is a mako 'missing template' exception
except exceptions.TopLevelLookupException:
raise exc.HTTPNotFound("Missing Template")
def __call__(self, environ, start_response):
'''
A Router instance is a WSGI app. It accepts the standard WSGI call
signature of ``environ``, ``start_response``.
The Router has a few jobs. First it uses the Routes package to
compare the requested path to available url patterns that have
been loaded and passed to the Router upon init.
Router is the most *framework-like* component of Pybald. In addition to
dispatching urls to controllers, it also allows 'method override'
behavior allowing other HTTP methods to be invoked such as ``put`` and
``delete`` from web clients that don't support them natively.
:param environ: WSGI CGI-like request environment
:param start_response: WSGI callback for starting the response and
setting HTTP response headers
'''
req = Request(environ)
req.errors = 'ignore'
#method override
#===============
# for REST architecture, this allows a POST parameter of _method
# to be used to override POST with alternate HTTP verbs (PUT, DELETE)
if req.POST:
override_method = req.POST.pop('_method', None)
if override_method is not None:
environ['REQUEST_METHOD'] = override_method.upper()
log.debug("Changing request method to {0}".format(
environ["REQUEST_METHOD"]))
results = self.map.routematch(environ=environ)
if results:
urlvars, route = results
else:
urlvars, route = {}, None
url = URLGenerator(self.map, environ)
config = request_config()
# Your mapper object
config.mapper = self.map
# The dict from m.match for this URL request
config.mapper_dict = urlvars
config.host = req.host
config.protocol = req.scheme
# defines the redirect method. In this case it generates a
# Webob Response object with the location and status headers
# set
config.redirect = lambda url: Response(location=url, status=302)
# TODO: routing args is supposed to be pos, key dict
environ.update({'wsgiorg.routing_args': ((url), urlvars),
'routes.route': route,
'routes.url': url,
'pybald.router': self})
# Add pybald extension
# the pybald.extension is a dictionary that can be used to copy state
# into a running controller (usually handled by the @action decorator)
environ.setdefault('pybald.extension', {})["url_for"] = url
# debug print messages
log.debug('{0:=^79}'.format(' {0} '.format(req.path_qs)))
log.debug('Method: {0}'.format(req.method))
# lifted from Routes middleware, handles 'redirect'
# routes (map.redirect)
if route and route.redirect:
route_name = '_redirect_{0}'.format(id(route))
location = url(route_name, **urlvars)
return Response(location=location,
status=route.redirect_status
)(environ, start_response)
if urlvars:
handler = self.get_handler(urlvars)
# No URL vars means nothing matched in the mapper function
else:
raise exc.HTTPNotFound("No URL match")
try:
# call the action we determined from the mapper
return handler(environ, start_response)
# This is a mako 'missing template' exception
except exceptions.TopLevelLookupException:
raise exc.HTTPNotFound("Missing Template")
def __call__(self, environ, start_response):
'''
A Router instance is a WSGI app. It accepts the standard WSGI call
signature of ``environ``, ``start_response``.
The Router has a few jobs. First it uses the Routes package to
compare the requested path to available url patterns that have
been loaded and passed to the Router upon init.
Router is the most *framework-like* component of Pybald. In addition to
dispatching urls to controllers, it also allows 'method override'
behavior allowing other HTTP methods to be invoked such as ``put`` and
``delete`` from web clients that don't support them natively.
'''
req = Request(environ)
#method override
#===============
# for REST architecture, this allows a POST parameter of _method
# to be used to override POST with alternate HTTP verbs (PUT, DELETE)
req.errors = 'ignore'
params = req.POST
if '_method' in req.params:
environ['REQUEST_METHOD'] = req.params['_method'].upper()
try:
del req.POST['_method']
except:
pass
# Experiment, is it worth it to change get method too?
try:
del req.GET['_method']
except:
pass
if debug:
print "Changing request method to {0}".format(
environ["REQUEST_METHOD"])
# routes config object, this must be done on every request.
# sets the mapper and allows link_to and redirect_to to
# function on routes
config = request_config()
config.mapper = self.map
config.environ = environ
match = config.mapper_dict
route = config.route
url = URLGenerator(self.map, environ)
environ['wsgiorg.routing_args'] = ((url), match)
environ['routes.route'] = route
environ['routes.url'] = url
environ['pybald.router'] = self
# Add pybald extension, normally gets assigned to controller object
environ['pybald.extension'] = environ.get('pybald.extension', {})
environ['pybald.extension']["url_for"] = url
# defines the redirect method. In this case it generates a
# Webob Response object with the location and status headers
# set
config.redirect = lambda url: Response(location=url, status=302)
# debug print messages
if debug:
print ''.join(['============= ',req.path,' =============='])
print 'Method: {0}'.format(req.method)
# use routes to match the url to a path
# urlvars will contain controller + other non query string
# URL data. Middleware above this can override and set urlvars
# and the router will use those values.
# TODO: allow individual variable overrides?
urlvars = environ.get('urlvars', self.map.match(environ=environ)) or {}
# lifted from Routes middleware, handles 'redirect'
# routes (map.redirect)
if route and route.redirect:
route_name = '_redirect_%s' % id(route)
location = url(route_name, **match)
return Response(location=location,
status=route.redirect_status
)(environ, start_response)
req.urlvars = urlvars
environ['urlvars'] = urlvars
if urlvars:
controller, handler = self.get_handler(urlvars)
# No URL vars means nothing matched in the mapper function
else:
raise exc.HTTPNotFound("No URL match")
try:
# call the action we determined from the mapper
return handler(environ,start_response)
# This is a mako 'missing template' exception
except exceptions.TopLevelLookupException:
raise exc.HTTPNotFound("Missing Template")
except:
# All other program errors get re-raised
# e.g. a 500 server error
raise
def __call__(self, environ, start_response):
'''
A Router instance is a WSGI app. It accepts the standard WSGI call
signature of ``environ``, ``start_response``.
The Router has a few jobs. First it uses the Routes package to
compare the requested path to available url patterns that have
been loaded and passed to the Router upon init.
Router is the most *framework-like* component of Pybald. In addition to
dispatching urls to controllers, it also allows 'method override'
behavior allowing other HTTP methods to be invoked such as ``put`` and
``delete`` from web clients that don't support them natively.
:param environ: WSGI CGI-like request environment
:param start_response: WSGI callback for starting the response and
setting HTTP response headers
'''
req = Request(environ)
req.errors = 'ignore'
#method override
#===============
# for REST architecture, this allows a POST parameter of _method
# to be used to override POST with alternate HTTP verbs (PUT, DELETE)
if req.POST:
override_method = req.POST.pop('_method', None)
if override_method is not None:
environ['REQUEST_METHOD'] = override_method.upper()
log.debug("Changing request method to {0}".format(
environ["REQUEST_METHOD"]))
results = self.map.routematch(environ=environ)
if results:
urlvars, route = results
else:
urlvars, route = {}, None
url = URLGenerator(self.map, environ)
config = request_config()
# Your mapper object
config.mapper = self.map
# The dict from m.match for this URL request
config.mapper_dict = urlvars
config.host = req.host
config.protocol = req.scheme
# defines the redirect method. In this case it generates a
# Webob Response object with the location and status headers
# set
config.redirect = lambda url: Response(location=url, status=302)
# TODO: routing args is supposed to be pos, key dict
environ.update({
'wsgiorg.routing_args': ((url), urlvars),
'routes.route': route,
'routes.url': url,
'pybald.router': self
})
# Add pybald extension
# the pybald.extension is a dictionary that can be used to copy state
# into a running controller (usually handled by the @action decorator)
environ.setdefault('pybald.extension', {})["url_for"] = url
# debug print messages
log.debug('{0:=^79}'.format(' {0} '.format(req.path_qs)))
log.debug('Method: {0}'.format(req.method))
# lifted from Routes middleware, handles 'redirect'
# routes (map.redirect)
if route and route.redirect:
route_name = '_redirect_{0}'.format(id(route))
location = url(route_name, **urlvars)
return Response(location=location,
status=route.redirect_status)(environ,
start_response)
if urlvars:
handler = self.get_handler(urlvars)
# No URL vars means nothing matched in the mapper function
else:
raise exc.HTTPNotFound("No URL match")
try:
# call the action we determined from the mapper
return handler(environ, start_response)
# This is a mako 'missing template' exception
except exceptions.TopLevelLookupException:
raise exc.HTTPNotFound("Missing Template")
