Add internation api key for firetext.

We want to start using Firetext for sending international SMS. They
require us to use a different API key for international SMS because it
requires a new code path to switch the sender ID to something that the
country will accept.
This PR does not include switching the sender of international SMS to
Firetext but sets us up to do so.

app/clients/sms/firetext.py

@@ -66,6 +66,7 @@ class FiretextClient(SmsClient):
         super(SmsClient, self).__init__(*args, **kwargs)
         self.current_app = current_app
         self.api_key = current_app.config.get('FIRETEXT_API_KEY')
+        self.international_api_key = current_app.config.get('FIRETEXT_INTERNATIONAL_API_KEY')
         self.from_number = current_app.config.get('FROM_NUMBER')
         self.name = 'firetext'
         self.url = current_app.config.get('FIRETEXT_URL')
@@ -91,10 +92,9 @@ class FiretextClient(SmsClient):
             self.statsd_client.incr("clients.firetext.error")
             self.current_app.logger.warning(log_message)
 
-    def send_sms(self, to, content, reference, sender=None):
-
+    def send_sms(self, to, content, reference, international, sender=None):
         data = {
-            "apiKey": self.api_key,
+            "apiKey": self.international_api_key if international else self.api_key,
             "from": self.from_number if sender is None else sender,
             "to": to.replace('+', ''),
             "message": content,

app/clients/sms/mmg.py

@@ -97,7 +97,7 @@ class MMGClient(SmsClient):
     def get_name(self):
         return self.name
 
-    def send_sms(self, to, content, reference, multi=True, sender=None):
+    def send_sms(self, to, content, reference, international, multi=True, sender=None):
         data = {
             "reqType": "BULK",
             "MSISDN": to,

app/config.py

@@ -99,6 +99,7 @@ class Config(object):
 
     # Firetext API Key
     FIRETEXT_API_KEY = os.getenv("FIRETEXT_API_KEY")
+    FIRETEXT_INTERNATIONAL_API_KEY = os.getenv("FIRETEXT_INTERNATIONAL_API_KEY", "placeholder")
 
     # Prefix to identify queues in SQS
     NOTIFICATION_QUEUE_PREFIX = os.getenv('NOTIFICATION_QUEUE_PREFIX')

app/delivery/send_to_providers.py

@@ -68,7 +68,8 @@ def send_sms_to_provider(notification):
                     to=notification.normalised_to,
                     content=str(template),
                     reference=str(notification.id),
-                    sender=notification.reply_to_text
+                    sender=notification.reply_to_text,
+                    international=notification.international
                 )
             except Exception as e:
                 notification.billable_units = template.fragment_count