apache2_mod_proxy - minor improvements/fixes (#2142)

* minor improvements/fixes

- moved imports from the bottom of the code to the top (ansible-style).
- pythonified/simplified get_member_status()/set_member_status()
- reduced clutter in Balancer.__init__()

* added changelog fragment

changelogs/fragments/2142-apache2_mod_proxy-cleanup.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - apache2_mod_proxy - refactored/cleaned-up part of the code (https://github.com/ansible-collections/community.general/pull/2142).

plugins/modules/web_infrastructure/apache2_mod_proxy.py

@@ -198,6 +198,10 @@ members:
 import re
 import traceback
 
+from ansible.module_utils.basic import AnsibleModule, missing_required_lib
+from ansible.module_utils.urls import fetch_url
+from ansible.module_utils.six import iteritems
+
 BEAUTIFUL_SOUP_IMP_ERR = None
 try:
     from BeautifulSoup import BeautifulSoup
@@ -273,13 +277,8 @@ class BalancerMember(object):
                           'drained': 'Drn',
                           'hot_standby': 'Stby',
                           'ignore_errors': 'Ign'}
-        status = {}
         actual_status = str(self.attributes['Status'])
-        for mode in status_mapping.keys():
-            if re.search(pattern=status_mapping[mode], string=actual_status):
-                status[mode] = True
-            else:
-                status[mode] = False
+        status = dict((mode, patt in actual_status) for mode, patt in iteritems(status_mapping))
         return status
 
     def set_member_status(self, values):
@@ -290,13 +289,10 @@ class BalancerMember(object):
                           'ignore_errors': '&w_status_I'}
 
         request_body = regexp_extraction(self.management_url, EXPRESSION, 1)
-        for k in values_mapping.keys():
-            if values[str(k)]:
-                request_body = request_body + str(values_mapping[k]) + '=1'
-            else:
-                request_body = request_body + str(values_mapping[k]) + '=0'
+        values_url = "".join("{0}={1}".format(url_param, 1 if values[mode] else 0) for mode, url_param in iteritems(values_mapping))
+        request_body = "{0}{1}".format(request_body, values_url)
 
-        response = fetch_url(self.module, self.management_url, data=str(request_body))
+        response = fetch_url(self.module, self.management_url, data=request_body)
         if response[1]['status'] != 200:
             self.module.fail_json(msg="Could not set the member status! " + self.host + " " + response[1]['status'])
 
@@ -309,11 +305,11 @@ class Balancer(object):
 
     def __init__(self, host, suffix, module, members=None, tls=False):
         if tls:
-            self.base_url = str(str('https://') + str(host))
-            self.url = str(str('https://') + str(host) + str(suffix))
+            self.base_url = 'https://' + str(host)
+            self.url = 'https://' + str(host) + str(suffix)
         else:
-            self.base_url = str(str('http://') + str(host))
-            self.url = str(str('http://') + str(host) + str(suffix))
+            self.base_url = 'http://' + str(host)
+            self.url = 'http://' + str(host) + str(suffix)
         self.module = module
         self.page = self.fetch_balancer_page()
         if members is None:
@@ -444,7 +440,5 @@ def main():
             module.fail_json(msg=str(module.params['member_host']) + ' is not a member of the balancer ' + str(module.params['balancer_vhost']) + '!')
 
 
-from ansible.module_utils.basic import AnsibleModule, missing_required_lib
-from ansible.module_utils.urls import fetch_url
 if __name__ == '__main__':
     main()