Added capability to read credentials from stdin.

- See issue
  https://github.com/pixelated-project/pixelated-dispatcher/issues/40

3 files changed, 26 insertions, 0 deletions

diff --git a/service/pixelated/config/args.py b/service/pixelated/config/args.py
index 6b77f341..4ac8a2ea 100644
--- a/service/pixelated/config/args.py
+++ b/service/pixelated/config/args.py
@@ -21,6 +21,7 @@ def parse():
     parser = argparse.ArgumentParser(description='Pixelated user agent.')
     parser.add_argument('--debug', action='store_true', help='DEBUG mode.')
     parser.add_argument('--dispatcher', help='run in organization mode, the credentials will be read from specified file', metavar='file')
+    parser.add_argument('--dispatcher-stdin', help='run in organization mode, the credentials will be read from stdin', default=False, action='store_true', dest='dispatcher_stdin')
     parser.add_argument('--host', default='127.0.0.1', help='the host to run the user agent on')
     parser.add_argument('--port', type=int, default=3333, help='the port to run the user agent on')
     parser.add_argument('-c', '--config', metavar='configfile', default=None, help='use specified file for credentials (for test purposes only)')
diff --git a/service/pixelated/runserver.py b/service/pixelated/runserver.py
index 518ea5fb..5f30913b 100644
--- a/service/pixelated/runserver.py
+++ b/service/pixelated/runserver.py
@@ -52,6 +52,11 @@ def setup():
             app.config['LEAP_SERVER_NAME'] = config['leap_provider_hostname']
             app.config['LEAP_USERNAME'] = config['user']
             app.config['LEAP_PASSWORD'] = config['password']
+        elif args.dispatcher_stdin:
+            config = fetch_credentials_from_dispatcher_stdin()
+            app.config['LEAP_SERVER_NAME'] = config['leap_provider_hostname']
+            app.config['LEAP_USERNAME'] = config['user']
+            app.config['LEAP_PASSWORD'] = config['password']
         else:
             configuration_setup(args.config)
         start_services(args.host, args.port)
@@ -72,6 +77,10 @@ def fetch_credentials_from_dispatcher(filename):
         return json.loads(fifo.read())
 
 
+def fetch_credentials_from_dispatcher_stdin():
+    return json.loads(sys.stdin.read())
+
+
 def setup_debugger(enabled):
     debug_enabled = enabled or os.environ.get('DEBUG', False)
     log.startLogging(sys.stdout)
diff --git a/service/test/unit/runserver_test.py b/service/test/unit/runserver_test.py
index 51ee899c..801a60bf 100644
--- a/service/test/unit/runserver_test.py
+++ b/service/test/unit/runserver_test.py
@@ -59,6 +59,22 @@ class RunserverTest(unittest.TestCase):
         sys.argv = ['tmp/does_not_exist', '--dispatcher', fifo_path]
         pixelated.runserver.setup()
 
+    def test_that_organization_switch_reads_the_credentials_from_stdin(self):
+        data = json.dumps({'leap_provider_hostname': 'test_provider', 'user': 'test_user', 'password': 'test_password'})
+        orig_stdin = sys.stdin
+        try:
+            sys.stdin = Mock()
+            when(sys.stdin).read().thenReturn(data)
+
+            sys.argv = ['tmp/does_not_exist', '--dispatcher-stdin']
+            pixelated.runserver.setup()
+
+            self.assertEquals('test_provider', pixelated.runserver.app.config['LEAP_SERVER_NAME'])
+            self.assertEquals('test_user', pixelated.runserver.app.config['LEAP_USERNAME'])
+            self.assertEquals('test_password', pixelated.runserver.app.config['LEAP_PASSWORD'])
+        finally:
+            sys.stdin = orig_stdin
+
     def test_start_services_provides_port(self):
         bind_address = '127.0.0.1'
         bind_port = 12345