Retreive scopes from several ogServers

Update the configuration file format to support several ogServers and
retrieve scopes from those ogServers.

The old config file format is still supported.

ogcp/cfg/ogcp.json

@@ -1,7 +1,4 @@
 {
-	"IP": "127.0.0.1",
-	"PORT": 8888,
-	"API_TOKEN": "c3fe7bb0395747ec42a25df027585871",
 	"LANG": "en",
 	"USERS": [
 		{
@@ -18,5 +15,19 @@
 				"Unidad Organizativa (Default)"
 			]
 		}
+	],
+	"SERVERS": [
+		{
+			"NAME": "Server 1",
+			"IP": "127.0.0.1",
+			"PORT": 8888,
+			"API_TOKEN": "a0e9ab768cbe93dab5b1998e952bcdb7"
+		},
+		{
+			"NAME": "Server 2",
+			"IP": "127.0.0.1",
+			"PORT": 18888,
+			"API_TOKEN": "e4c8gh913dph32nxm6q2768c427jrsj1"
+		}
 	]
 }

ogcp/og_server.py

@@ -11,9 +11,8 @@ import requests
 import json
 
 class OGServer:
-    def __init__(self, ip=app.config['IP'],
-                 port=app.config['PORT'],
-                 api_token=app.config['API_TOKEN']):
+    def __init__(self, name, ip, port, api_token):
+        self.name = name
         self.ip = ip
         self.port = port
         self.api_token = api_token
@@ -34,3 +33,19 @@ class OGServer:
                           headers=self.HEADERS,
                           json=payload)
         return r
+
+
+servers = []
+if {'IP', 'PORT', 'API_TOKEN'} <= app.config.keys():
+    # Config file backward compatibility
+    servers.append(OGServer(app.config['IP'],
+                            app.config['IP'],
+                            app.config['PORT'],
+                            app.config['API_TOKEN']))
+else:
+    for server in app.config['SERVERS']:
+        ogserver = OGServer(server['NAME'],
+                            server['IP'],
+                            server['PORT'],
+                            server['API_TOKEN'])
+        servers.append(ogserver)

ogcp/views.py

@@ -25,7 +25,7 @@ from pathlib import Path
 
 from ogcp.models import User
 from ogcp.forms.auth import LoginForm, UserForm, DeleteUserForm
-from ogcp.og_server import OGServer
+from ogcp.og_server import servers
 from flask_babel import lazy_gettext as _l
 from flask_babel import _
 from ogcp import app
@@ -177,17 +177,24 @@ def get_allowed_scopes(scopes, allowed_scopes):
             get_allowed_scopes(scope, allowed_scopes)
 
 def get_scopes(ips=set()):
-    r = g.server.get('/scopes')
-    scopes = r.json()
+    list_scopes = []
+    for server in servers:
+        r = server.get('/scopes')
+        scopes = r.json()
+        server_scope = {}
+        server_scope['name'] = server.name
+        server_scope.update(scopes)
+        list_scopes.append(server_scope)
+    all_scopes = {'scope': list_scopes}
     if current_user.scopes:
         allowed_scopes = []
-        get_allowed_scopes(scopes, allowed_scopes)
-        scopes = {'scope': allowed_scopes}
+        get_allowed_scopes(all_scopes, allowed_scopes)
+        all_scopes = {'scope': allowed_scopes}
     r = g.server.get('/clients')
     clients = r.json()
-    add_state_and_ips(scopes, clients['clients'], ips)
+    add_state_and_ips(all_scopes, clients['clients'], ips)
 
-    return scopes, clients
+    return all_scopes, clients
 
 
 def hash_password(pwd):
@@ -245,7 +252,7 @@ def load_user(username):
 
 @app.before_request
 def load_config():
-    g.server = OGServer()
+    g.server = servers[0]
 
 @app.errorhandler(404)
 def page_not_found(error):