1 files changed, 114 insertions, 0 deletions
diff --git a/python/examples/pam_demo/demo.py b/python/examples/pam_demo/demo.py
new file mode 100644
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+++ b/python/examples/pam_demo/demo.py
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+from gevent.monkey import patch_all
+patch_all()
+
+import sys
+from Pubnub import Pubnub
+import random
+import json
+
+rand = str(random.randint(1,99999999))
+
+def get_unique(s):
+	return 'str-' + rand + '-' + s
+
+# public channel
+# This is the channel all clients announce themselves on -- or more generally speaking, a channel you expect the client
+# to "check-in" on to announce his state
+
+#channel_public = get_unique("channel_public")
+channel_public = "channel_public"
+
+# server auth key
+# Only the server has/knows about this auth token. It will be used to grant read on the "check-in" Presence channel
+
+#server_auth_token = get_unique("server_auth_token")
+server_auth_token = "server_auth_token"
+
+# client auth key
+# only clients will use this authey -- it does not provide presence channel read access
+ 
+#client_auth_token = get_unique("client_auth_token")
+client_auth_token = "client_auth_token"
+
+# each client must have a unique id -- a UUID, for presence information/state to bind to
+
+# client uuid
+client_uuid = get_unique("client_uuid")
+
+# server uuid
+server_uuid = get_unique("server_uuid")
+
+# For the demo, we'll implement a SERVER called server, who is the authoritative 'admin' entity in the system
+# We'll also implement a CLIENT called client, who is an arbitrary hardware device member of the network
+
+# Please swap out the default 'pam' demo keys with your own PAM-enabled keys
+
+# init server object
+server = Pubnub(publish_key="pam", subscribe_key="pam", secret_key="pam", auth_key=server_auth_token, uuid=server_uuid)
+
+# init client object
+client = Pubnub(publish_key="pam", subscribe_key="pam", auth_key=client_auth_token, uuid=client_uuid)
+
+# To access a Presence channel with PAM, its format is CHANNELNAME-pnpres
+
+# Grant permission to server auth keys
+# grant r/w to public, and r/w public Presence (public-pnpres)
+
+print(server.grant(channel=channel_public, auth_key=server_auth_token, read=True, write=True))
+print(server.grant(channel=channel_public + '-pnpres', auth_key=server_auth_token, read=True, write=True))
+
+# Grant permission to client auth keys
+# grant r/w to public, and w-only access to public Presence (public-pnpres)
+print(server.grant(channel=channel_public, auth_key=client_auth_token, read=True, write=False))
+print(server.grant(channel=channel_public + '-pnpres', auth_key=client_auth_token, read=False, write=False))
+
+# Now, we'll run it to watch it work as advertised...
+
+# Define some simple callabcks for the Server and Client
+
+def _server_message_callback(message, channel):
+	print("Server heard: " + json.dumps(message))
+
+def _client_message_callback(message, channel):
+    print("Client heard: " + json.dumps(message))
+
+def _client_error_callback(error, channel):
+    print("Client Error: " + error + " on channel " + channel)
+    print("TTL on grant expired, or token was invalid, or revoked. Client will now unsubscribe from this unauthorized channel.")
+    client.unsubscribe(channel=channel)
+
+def _server_error_callback(error, channel):
+    print("Server Error: " + error + " on channel " + channel)
+    print("TTL on grant expired, or token was revoked. Server will now unsubscribe from this unauthorized channel.")
+    server.unsubscribe(channel=channel)
+
+def _server_presence_callback(message, channel):
+    print message
+    if 'action' in message:
+        if message['action'] == 'join' and message['uuid'] == client_uuid:
+            print "Server can see that client with UUID " + message['uuid'] + " has a state of " + json.dumps(message['data'])
+
+def _client_presence_callback(message, channel):
+    print message
+    if 'action' in message:
+        if message['action'] == 'join' and message['uuid'] == client_uuid:
+            print "Client can see that client with UUID " + message['uuid'] + " has a state of " + json.dumps(message['data'])
+
+# server subscribes to public channel
+server.subscribe(channels=channel_public, callback=_server_message_callback, error=_server_error_callback)
+
+# server subscribes to presence events on public channel
+# presence() is a convienence method that subscribes to channel-pnpres with special logic for handling
+# presence-event formatted messages
+
+## uncomment out to see server able to read on presence channel
+server.presence(channel=channel_public, callback=_server_presence_callback, error=_server_error_callback)
+
+# now if the client tried to subscribe on the presence channel, and therefore, get state info
+# he is explicitly denied!
+
+## uncomment out to see client not able to read on presence channel
+client.presence(channel=channel_public, callback=_client_presence_callback, error=_client_error_callback)
+
+# client subscribes to public channel
+client.subscribe(channels=channel_public, state={ "myKey" : get_unique("foo")}, callback=_client_message_callback, error=_client_error_callback)