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authorJosé Bollo <jose.bollo@iot.bzh>2016-05-27 17:31:30 +0200
committerJosé Bollo <jose.bollo@iot.bzh>2016-05-27 17:31:30 +0200
commitb81bab801d1a39cce7254b0c056d991412ec4331 (patch)
treee691cd4ad9528da09778adef27ad5f495e245d1f /doc/afb-daemon-vocabulary.md
parent13a8c36f354376b622cebb3348f2500d87b980a9 (diff)
improves documentation
Change-Id: I5abae06cd5b5127fca97ba12aa8f18d037a95d79 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
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+++ b/doc/afb-daemon-vocabulary.md
@@ -1,31 +1,72 @@
Vocabulary for AFB-DAEMON
=========================
version: 1
- Date: 25 May 2016
+ Date: 26 mai 2016
Author: José Bollo
TABLE-OF-CONTENT-HERE
-## Authentification
+## Event
-## Context
+Message with data propagated from the services to the client and not expecting
+any reply.
-## Level of authorisation (LOA)
+The current implementation allows to widely broadcast events to all clients.
+
+## Level of assurance (LOA)
+
+This level that can be from 0 to 3 represent the level of
+assurance that the services can expect from the session.
+
+The exact definition of the meaning of this levels and of
+how to use it remains to be achived.
## Plugin
+A shared library object intended to be plug to an afb-daemon instance
+to implement an API.
+
## Request
+A request is an invocation by a client to a method of a plugin using a message
+transfered through some protocol: HTTP, WebSocket, DBUS... served by afb-daemon
+
## Reply/Response
+This is a message sent to client as the result of the request.
+
## Service
+Service are made of plugins runnning by their side on their binder.
+It can serve many client. Each one being attached to one session.
+
+The framework establishes the connection between the services and
+the clients. Using DBus currently.
+
## Session
-A session records data as
+A session is meant to be the unic context of an instance of client,
+identifying that instance across requests.
+
+Each session has an identifier. Session identifier generated by afb-daemon are UUIDs.
+
+Internally, afb-daemon offers a mechanism to attach data to sessions.
+When the session is closed or disappears, the data attached to that session
+are freed.
## Token
+The token is an identifier that the the client must give to be authentificated.
+
+At start, afb-daemon get an initial token. This initial token must be presented
+incoming client to be authentificated.
+
+A token is valid only for a period.
+
+The token must be renewed periodically. When the token is renewed, afb-daemon
+sends the new token to the client.
+
+Tokens generated by afb-daemon are UUIDs.
## UUID
@@ -34,6 +75,19 @@ It stand for Universal Unic IDentifier.
Its is designed to create identifier in a way that avoid has much as possible conflicts.
It means that if two differents instance create a UUID, the probability that they create the same UUID is very low, near to zero.
+## x-afb-reqid
+
+Argument name that can be used with HTTP request.
+When this argument is given, it is automatically added to the "request" object of the
+answer.
+
## x-afb-token
+Argument name for giving the token without ambiguity.
+You can also use the name **token** but it may conflicts with other arguments.
+
## x-afb-uuid
+
+Argument name for giving explicitely the session identifier without ambiguity.
+You can also use the name **uuid** but it may conflicts with other arguments.
+