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Python: Added "prefix" to configuration.

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This patch gives users the option to set a `"prefix"` attribute
for Python applications, either at the top level or for specific
`"target"`s. If the attribute is present, the value of `"prefix"`
must be a string beginning with `"/"`. If the value of the `"prefix"`
attribute is longer than 1 character and ends in `"/"`, the
trailing `"/"` is stripped.

The purpose of the `"prefix"` attribute is to set the `SCRIPT_NAME`
context value for WSGI applications and the `root_path` context
value for ASGI applications, allowing applications to properly route
requests regardless of the path that the server uses to expose the
application.

The context value is only set if the request's URL path begins with
the value of the `"prefix"` attribute. In all other cases, the
`SCRIPT_NAME` or `root_path` values are not set. In addition, for
WSGI applications, the value of `"prefix"` will be stripped from
the beginning of the request's URL path before it is sent to the
application.

Reviewed-by: Andrei Zeliankou <zelenkov@nginx.com>
Reviewed-by: Artem Konev <artem.konev@nginx.com>
Signed-off-by: Alejandro Colomar <alx@nginx.com>
This commit is contained in:
OutOfFocus4
2021-11-14 10:47:07 -05:00
committed by Alejandro Colomar
parent 7a81d9d61d
commit 6dae517ebd
17 changed files with 472 additions and 23 deletions
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38
test/test_python_application.py
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@@ -94,6 +94,44 @@ custom-header: BLAH
resp['headers']['Query-String'] == ' var1= val1 & var2=val2'
), 'Query-String space 4'
def test_python_application_prefix(self):
self.load('prefix', prefix='/api/rest')
def set_prefix(prefix):
self.conf('"' + prefix + '"', 'applications/prefix/prefix')
def check_prefix(url, script_name, path_info):
resp = self.get(url=url)
assert resp['status'] == 200
assert resp['headers']['Script-Name'] == script_name
assert resp['headers']['Path-Info'] == path_info
check_prefix('/ap', 'NULL', '/ap')
check_prefix('/api', 'NULL', '/api')
check_prefix('/api/', 'NULL', '/api/')
check_prefix('/api/res', 'NULL', '/api/res')
check_prefix('/api/restful', 'NULL', '/api/restful')
check_prefix('/api/rest', '/api/rest', '')
check_prefix('/api/rest/', '/api/rest', '/')
check_prefix('/api/rest/get', '/api/rest', '/get')
check_prefix('/api/rest/get/blah', '/api/rest', '/get/blah')
set_prefix('/api/rest/')
check_prefix('/api/rest', '/api/rest', '')
check_prefix('/api/restful', 'NULL', '/api/restful')
check_prefix('/api/rest/', '/api/rest', '/')
check_prefix('/api/rest/blah', '/api/rest', '/blah')
set_prefix('/app')
check_prefix('/ap', 'NULL', '/ap')
check_prefix('/app', '/app', '')
check_prefix('/app/', '/app', '/')
check_prefix('/application/', 'NULL', '/application/')
set_prefix('/')
check_prefix('/', 'NULL', '/')
check_prefix('/app', 'NULL', '/app')
def test_python_application_query_string_empty(self):
self.load('query_string')