def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
python类redirect()的实例源码
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_default_redirect(self, rule, method, values, query_args):
"""A helper that returns the URL to redirect to if it finds one.
This is used for default redirecting only.
:internal:
"""
assert self.map.redirect_defaults
for r in self.map._rules_by_endpoint[rule.endpoint]:
# every rule that comes after this one, including ourself
# has a lower priority for the defaults. We order the ones
# with the highest priority up for building.
if r is rule:
break
if r.provides_defaults_for(rule) and \
r.suitable_for(values, method):
values.update(r.defaults)
domain_part, path = r.build(values)
return self.make_redirect_url(
path, query_args, domain_part=domain_part)
def get_response(self, environ):
return redirect(self.new_url, self.code)
def match(self, path):
"""Check if the rule matches a given path. Path is a string in the
form ``"subdomain|/path(method)"`` and is assembled by the map. If
the map is doing host matching the subdomain part will be the host
instead.
If the rule matches a dict with the converted values is returned,
otherwise the return value is `None`.
:internal:
"""
if not self.build_only:
m = self._regex.search(path)
if m is not None:
groups = m.groupdict()
# we have a folder like part of the url without a trailing
# slash and strict slashes enabled. raise an exception that
# tells the map to redirect to the same url but with a
# trailing slash
if self.strict_slashes and not self.is_leaf and \
not groups.pop('__suffix__'):
raise RequestSlash()
# if we are not in strict slashes mode we have to remove
# a __suffix__
elif not self.strict_slashes:
del groups['__suffix__']
result = {}
for name, value in iteritems(groups):
try:
value = self._converters[name].to_python(value)
except ValidationError:
return
result[str(name)] = value
if self.defaults:
result.update(self.defaults)
if self.alias and self.map.redirect_defaults:
raise RequestAliasRedirect(result)
return result
def bind(self, server_name, script_name=None, subdomain=None,
url_scheme='http', default_method='GET', path_info=None,
query_args=None):
"""Return a new :class:`MapAdapter` with the details specified to the
call. Note that `script_name` will default to ``'/'`` if not further
specified or `None`. The `server_name` at least is a requirement
because the HTTP RFC requires absolute URLs for redirects and so all
redirect exceptions raised by Werkzeug will contain the full canonical
URL.
If no path_info is passed to :meth:`match` it will use the default path
info passed to bind. While this doesn't really make sense for
manual bind calls, it's useful if you bind a map to a WSGI
environment which already contains the path info.
`subdomain` will default to the `default_subdomain` for this map if
no defined. If there is no `default_subdomain` you cannot use the
subdomain feature.
.. versionadded:: 0.7
`query_args` added
.. versionadded:: 0.8
`query_args` can now also be a string.
"""
server_name = server_name.lower()
if self.host_matching:
if subdomain is not None:
raise RuntimeError('host matching enabled and a '
'subdomain was provided')
elif subdomain is None:
subdomain = self.default_subdomain
if script_name is None:
script_name = '/'
try:
server_name = _encode_idna(server_name)
except UnicodeError:
raise BadHost()
return MapAdapter(self, server_name, script_name, subdomain,
url_scheme, path_info, default_method, query_args)
def make_redirect_url(self, path_info, query_args=None, domain_part=None):
"""Creates a redirect URL.
:internal:
"""
suffix = ''
if query_args:
suffix = '?' + self.encode_query_args(query_args)
return str('%s://%s/%s%s' % (
self.url_scheme or 'http',
self.get_host(domain_part),
posixpath.join(self.script_name[:-1].lstrip('/'),
path_info.lstrip('/')),
suffix
))
def get_response(self, environ):
return redirect(self.new_url, self.code)
def match(self, path):
"""Check if the rule matches a given path. Path is a string in the
form ``"subdomain|/path(method)"`` and is assembled by the map. If
the map is doing host matching the subdomain part will be the host
instead.
If the rule matches a dict with the converted values is returned,
otherwise the return value is `None`.
:internal:
"""
if not self.build_only:
m = self._regex.search(path)
if m is not None:
groups = m.groupdict()
# we have a folder like part of the url without a trailing
# slash and strict slashes enabled. raise an exception that
# tells the map to redirect to the same url but with a
# trailing slash
if self.strict_slashes and not self.is_leaf and \
not groups.pop('__suffix__'):
raise RequestSlash()
# if we are not in strict slashes mode we have to remove
# a __suffix__
elif not self.strict_slashes:
del groups['__suffix__']
result = {}
for name, value in iteritems(groups):
try:
value = self._converters[name].to_python(value)
except ValidationError:
return
result[str(name)] = value
if self.defaults:
result.update(self.defaults)
if self.alias and self.map.redirect_defaults:
raise RequestAliasRedirect(result)
return result
def bind(self, server_name, script_name=None, subdomain=None,
url_scheme='http', default_method='GET', path_info=None,
query_args=None):
"""Return a new :class:`MapAdapter` with the details specified to the
call. Note that `script_name` will default to ``'/'`` if not further
specified or `None`. The `server_name` at least is a requirement
because the HTTP RFC requires absolute URLs for redirects and so all
redirect exceptions raised by Werkzeug will contain the full canonical
URL.
If no path_info is passed to :meth:`match` it will use the default path
info passed to bind. While this doesn't really make sense for
manual bind calls, it's useful if you bind a map to a WSGI
environment which already contains the path info.
`subdomain` will default to the `default_subdomain` for this map if
no defined. If there is no `default_subdomain` you cannot use the
subdomain feature.
.. versionadded:: 0.7
`query_args` added
.. versionadded:: 0.8
`query_args` can now also be a string.
"""
server_name = server_name.lower()
if self.host_matching:
if subdomain is not None:
raise RuntimeError('host matching enabled and a '
'subdomain was provided')
elif subdomain is None:
subdomain = self.default_subdomain
if script_name is None:
script_name = '/'
try:
server_name = _encode_idna(server_name)
except UnicodeError:
raise BadHost()
return MapAdapter(self, server_name, script_name, subdomain,
url_scheme, path_info, default_method, query_args)
def make_redirect_url(self, path_info, query_args=None, domain_part=None):
"""Creates a redirect URL.
:internal:
"""
suffix = ''
if query_args:
suffix = '?' + self.encode_query_args(query_args)
return str('%s://%s/%s%s' % (
self.url_scheme or 'http',
self.get_host(domain_part),
posixpath.join(self.script_name[:-1].lstrip('/'),
path_info.lstrip('/')),
suffix
))
def get_response(self, environ):
return redirect(self.new_url, self.code)
def match(self, path):
"""Check if the rule matches a given path. Path is a string in the
form ``"subdomain|/path(method)"`` and is assembled by the map. If
the map is doing host matching the subdomain part will be the host
instead.
If the rule matches a dict with the converted values is returned,
otherwise the return value is `None`.
:internal:
"""
if not self.build_only:
m = self._regex.search(path)
if m is not None:
groups = m.groupdict()
# we have a folder like part of the url without a trailing
# slash and strict slashes enabled. raise an exception that
# tells the map to redirect to the same url but with a
# trailing slash
if self.strict_slashes and not self.is_leaf and \
not groups.pop('__suffix__'):
raise RequestSlash()
# if we are not in strict slashes mode we have to remove
# a __suffix__
elif not self.strict_slashes:
del groups['__suffix__']
result = {}
for name, value in iteritems(groups):
try:
value = self._converters[name].to_python(value)
except ValidationError:
return
result[str(name)] = value
if self.defaults:
result.update(self.defaults)
if self.alias and self.map.redirect_defaults:
raise RequestAliasRedirect(result)
return result
def bind(self, server_name, script_name=None, subdomain=None,
url_scheme='http', default_method='GET', path_info=None,
query_args=None):
"""Return a new :class:`MapAdapter` with the details specified to the
call. Note that `script_name` will default to ``'/'`` if not further
specified or `None`. The `server_name` at least is a requirement
because the HTTP RFC requires absolute URLs for redirects and so all
redirect exceptions raised by Werkzeug will contain the full canonical
URL.
If no path_info is passed to :meth:`match` it will use the default path
info passed to bind. While this doesn't really make sense for
manual bind calls, it's useful if you bind a map to a WSGI
environment which already contains the path info.
`subdomain` will default to the `default_subdomain` for this map if
no defined. If there is no `default_subdomain` you cannot use the
subdomain feature.
.. versionadded:: 0.7
`query_args` added
.. versionadded:: 0.8
`query_args` can now also be a string.
"""
server_name = server_name.lower()
if self.host_matching:
if subdomain is not None:
raise RuntimeError('host matching enabled and a '
'subdomain was provided')
elif subdomain is None:
subdomain = self.default_subdomain
if script_name is None:
script_name = '/'
try:
server_name = _encode_idna(server_name)
except UnicodeError:
raise BadHost()
return MapAdapter(self, server_name, script_name, subdomain,
url_scheme, path_info, default_method, query_args)
