Update specs (#540)

Includes message formats for `CAP` and the new metadata spec.

README.md

@@ -45,7 +45,7 @@ You should make sure your manually installed local versions match that of [GitHu
 1. Update the `spec` submodule. If the spec's a draft, confirm that it has the `work-in-progress: true` tag in the yaml header of the file.
 2. List the spec on `_irc/index.md`
 3. Add the spec to `_data/irc_versions.yml` - the name here is what's used in the support lists. Look at the `hide-if-no-support` and `hide-on-servers` options, they affect how the support tables are generated. Make sure you put it in the right place sorting-wise.
-4. Add relevant numerics/capabilities/isupport tokens/... to `_data/registry.yml`
+4. Add relevant numerics/capabilities/isupport tokens/... to `_data/registry.yml` and `_data/standard_replies_registry.yml`
 5. Add the relevant support to the data files!
 
 ## Licenses

_data/irc_versions.yml

@@ -104,11 +104,11 @@ stable:
       link: /specs/extensions/message-tags.html
       caps:
         - message-tags
-    metadata3.2:
-      name: Metadata v3.2
-      description: Metadata v3.2 [DEPRECATED]
-      link: /specs/core/metadata-3.2.html
-      deprecated: true
+    metadata:
+      name: Metadata
+      description: Metadata
+      link: /specs/extensions/metadata.html
+      draft: true
     monitor:
       name: Monitor
       description: Monitor

_data/registry.yml

@@ -54,6 +54,41 @@
       description: Indicates to a client that their monitor list is full
       specs:
         - monitor
+    - numeric: "760"
+      name: RPL_WHOISKEYVALUE
+      description: Provides user metadata within a `WHOIS` response
+      specs:
+        - metadata
+    - numeric: "761"
+      name: RPL_KEYVALUE
+      description: Provides user metadata as a response to a `METADATA` command, or to notify a user's metadata changed
+      specs:
+        - metadata
+    - numeric: "766"
+      name: RPL_KEYNOTSET
+      description: Indicates lack of te requested kind of user metadata as a response to a `METADATA` command, or a notification it was deleted
+      specs:
+        - metadata
+    - numeric: "770"
+      name: RPL_METADATASUBOK
+      description: Indicates success of the `METADATA SUB` command
+      specs:
+        - metadata
+    - numeric: "771"
+      name: RPL_METADATAUNSUBOK
+      description: Indicates success of the `METADATA UNSUB` command
+      specs:
+        - metadata
+    - numeric: "772"
+      name: RPL_METADATASUBS
+      description: Lists metadata keys a client is currently subscribed to, as a response to `METADATA SUBS`
+      specs:
+        - metadata
+    - numeric: "774"
+      name: RPL_METADATASYNCLATER
+      description: Indicates that metadata cannot currently be sent, as a reply to a `JOIN` or `METADATA SYNC` command. The client should request `METADATA SYNC` later
+      specs:
+        - metadata
     - numeric: "900"
       name: RPL_LOGGEDIN
       description: Indicates that the client is logged in
@@ -182,10 +217,10 @@
       specs: 
         - message-tags
       description: Allows clients and servers to use tags more broadly
-    - name: metadata
+    - name: metadata-2
       specs:
-        - metadata-3.2
-      description: Lets clients store metadata about themselves with the server, for other clients to request and retrieve later.
+        - metadata
+      description: Lets clients store metadata about themselves with the server, for other clients to request, retrieve, and be notified later later.
     - name: monitor
       specs:
         - monitor
@@ -349,7 +384,7 @@
       description: Not defined by IRCv3 but extended to include usernames and hostnames.
     - name: METADATA
       specs: 
-        - metadata-3.2
+        - metadata
       description: Lets clients store metadata about themselves with the server, for other clients to request and retrieve later.
     - name: MONITOR
       specs: 

_data/standard_replies_registry.yml

@@ -79,6 +79,51 @@
       description: The client tried to remove messages from a channel they do not have access to, or does not exist
       specs:
         - message-redaction
+    - command: METADATA
+      code: INVALID_TARGET
+      description: The client requested metadata about a non-existent user
+      specs:
+        - metadata
+    - command: METADATA
+      code: KEY_INVALID
+      description: The client tried to get or set an invalid kind of metadata
+      specs:
+        - metadata
+    - command: METADATA
+      code: KEY_NO_PERMISSION
+      description: The client tried to get or set a kind of metadata it is not allowed to
+      specs:
+        - metadata
+    - command: METADATA
+      code: KEY_NOT_SET
+      description: The client tried to remove a metadata key that already does not exist
+      specs:
+        - metadata
+    - command: METADATA
+      code: LIMIT_REACHED
+      description: The client tried to set too many metadata items in a time period
+      specs:
+        - metadata
+    - command: METADATA
+      code: RATE_LIMITED
+      description: The client tried to set too many metadata items in a time period, and should retry in the given number of seconds
+      specs:
+        - metadata
+    - command: METADATA
+      code: SUBCOMMAND_INVALID
+      description: The client sent a `METADATA` command that was not understood
+      specs:
+        - metadata
+    - command: METADATA
+      code: TOO_MANY_SUBS 
+      description: The client tried to subscribe to updates to too many kinds of metadata
+      specs:
+        - metadata
+    - command: METADATA
+      code: VALUE_INVALID
+      description: The client tried to set a metadata item to an invalid value
+      specs:
+        - metadata
     - command: REDACT
       code: REDACT_FORBIDDEN
       description: The client tried to remove messages from a channel they are not authorised to remove messages from

_data/sw_clients.yml

@@ -1259,7 +1259,6 @@
           extended-join:
           invite-notify:
           labeled-response:
-          metadata:
           message-redaction:
           message-tags:
           monitor:

_data/sw_libraries.yml

@@ -184,7 +184,6 @@
           extended-join:
           invite-notify:
           message-tags:
-          metadata:
           monitor:
           multi-prefix:
           sasl-3.1:
@@ -211,7 +210,6 @@
           echo-message:
           extended-join:
           invite-notify:
-          metadata:
           monitor:
           multi-prefix:
           sasl-3.1:

_data/sw_servers.yml

@@ -193,7 +193,6 @@
           echo-message:
           extended-join:
           invite-notify:
-          metadata:
           monitor:
           multi-prefix:
           server-time:

_irc/index.md

@@ -308,6 +308,15 @@ and do not themselves offer any user-facing features. Specific IRCv3
 extensions will note their use of (and dependency on) message IDs.
 
 
+## [Metadata]({{site.baseurl}}/specs/extensions/metadata.html)
+
+The **work-in-progress** [`metadata-2`]({{site.baseurl}}/specs/extensions/metadata.html)
+specification is a framework to associate information to users. It succeeds
+the v3.2 `METADATA` command, which was found to have issues related to rate-limiting
+and excessive notifications, which made it impossible for servers in widespread
+use to implement.
+
+
 ## [Monitor]({{site.baseurl}}/specs/extensions/monitor.html)
 
 The `MONITOR` command acts as a standardized way for clients to be alerted when
@@ -410,15 +419,6 @@ implementing them. Generally, these extensions have either been superseded,
 or other major implementation issues have been discovered with them.
 
 
-## [v3.2 Metadata]({{site.baseurl}}/specs/core/metadata-3.2.html)
-
-The v3.2 `METADATA` command was found to have issues related to rate-limiting
-and excessive notifications, which made it impossible for servers in widespread
-use to implement. A new Metadata specification is being written to address
-these issues and overhaul the notification system, so we do not recommend
-implementing this spec.
-
-
 ## [STARTTLS]({{site.baseurl}}/specs/deprecated/tls.html)
 
 STARTTLS allows clients to upgrade their plaintext connections to use TLS