[asterisk-bugs] [JIRA] (ASTERISK-23692) ARI: Add a Messaging Capability

[Matt Jordan (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-23692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Jordan reassigned ASTERISK-23692:
--------------------------------------

    Assignee: Matt Jordan

> ARI: Add a Messaging Capability
> -------------------------------
>
>                 Key: ASTERISK-23692
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23692
>             Project: Asterisk
>          Issue Type: Improvement
>      Security Level: None
>    Affects Versions: 12.2.0
>            Reporter: Matt Jordan
>            Assignee: Matt Jordan
>
> This improvement to ARI would extend Asterisk's technology agnostic messaging capabilities to ARI. This entails doing a few improvements to the core, followed by some extensions to some existing resources.
> # Add a new API to {{message.h}} that registers a callback function (or an observer) that can be notified when a message is received. When a message is enqueued (but before it goes to the dialplan), the message can be handed off to the observers to let them 'deal' with the message if they so choose.
> {noformat}
> static int ast_msg_register_observer(const char *id, void (*msg_cb)(struct ast_msg *msg));
>  
> static int ast_msg_unregister_observer(const char *id);
> {noformat}
> ** *NOTE*: technically, the act of enqueuing the message could be an observer as well. Don't get crazy with this, but it may be worthwhile making the act of handling a message somewhat generic.
> # Modify {{chan_sip}} to not bail if {{get_destination}} fails *and* an observer is present that can handle the message.
> # Implement an observer in ARI that emits received message as a new websocket event.
> # Implement the following in the existing ARI resources:
> ## A method on endpoints that lets you send a message to the endpoint ({{ POST /endpoints/PJSIP/alice/message}})
> ## A method on technology that lets you specify the destination in the To:
> {noformat}
> POST /endpoints/PJSIP/message
> {
>     "from": "xmpp:bob at jabber.org",
>     "to": "pjsip:generic/sip:alice at mysipserver.org"
>     "body": "No, *I* am the very model of a major general"
> }
> {noformat}
> ## Update subscriptions on endpoints such that subscribing to an endpoint subscribes for the WebSocket events of messages sent from/to the endpoint.
> Add tests for the following:
> || Test || Level || Description ||
> | applications/subscribe-endpoint | Asterisk Test Suite | Basic subscription to an endpoint. Test should verify that a message sent from the subscribed endpoint is received; message sent to the subscribed endpoint is received; message sent to an unsubscribed endpoint is not received. Verify that an application not subscribed does not receive messages. |
> | applications/subscribe-technology | Asterisk Test Suite | Subscribe to all messages associated with a technology. Verify that any message sent to an endpoint of the technology type is received. Verify that an application not subscribed does not receive messages. |
> | message/basic | Asterisk Test Suite | Test sending a message through ARI to an endpoint, a generic URI; from an endpoint, from a sip URI. |
> | message/off_nominal | Asterisk Test Suite | Test off nominal scenarios:
> * Badly formatted request body
> * Bad from endpoint (for a technology that requires it)
> * Bad to endpoint (for a technology that requires it) |
> | message/headers | Asterisk Test Suite | Test adding technology specific headers to a message through ARI |
> For more detailed information, see the wiki page.



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