help: Adjust links and text for "/help/channels-permissions".

Adjusts links and text to the help center article for revision
of channel permissions documentation, specifically in /docs,
/web, and /zerver directories.

The links in the /help and /templates/corporate directories
were updated when the documentation was revised.

api_docs/roles-and-permissions.md

@@ -75,9 +75,9 @@ event](/api/get-events#realm_user-add), and the
 
 Many areas of Zulip are customizable by the roles
 above, such as (but not limited to) [restricting message editing and
-deletion](/help/restrict-message-editing-and-deletion) and
-[channels permissions](/help/channel-permissions). The potential
-permission levels are:
+deletion](/help/restrict-message-editing-and-deletion) and various
+permissions for different [channel types](/help/channel-permissions).
+The potential permission levels are:
 
 * Everyone / Any user including Guests (least restrictive)
 

docs/overview/changelog.md

@@ -1600,7 +1600,7 @@ _Released 2022-06-21_
 - CVE-2022-31017: Fixed message edit event exposure in
   protected-history streams.
   Zulip allows a stream to be configured as [private with protected
-  history](https://zulip.com/help/channel-permissions#channel-privacy-settings),
+  history](https://zulip.com/help/channel-permissions#private-channels),
   which means that new subscribers should only see messages sent after
   they join. However, due to a logic bug in Zulip Server 2.1.0 through
   5.2, when a message was edited, the server would incorrectly send an
@@ -3303,7 +3303,7 @@ _Released 2018-11-07_
 - Users can now configure email and mobile push notifications for
   all messages in a stream (useful for low-traffic
   streams/organizations), not just for messages mentioning them.
-- New [stream settings](https://zulip.com/help/channel-permissions)
+- New [stream settings](https://zulip.com/help/channel-permissions#private-channels)
   control whether private stream subscribers can access history
   from before they joined, and allow configuring streams to only
   allow administrators to post.

docs/production/security-model.md

@@ -118,7 +118,8 @@ strength allowed is controlled by two settings in
     figure out whether a channel with that name exists, but cannot see any
     other details about the channel.
 
-  - See [Channel permissions](https://zulip.com/help/channel-permissions) for more details.
+  - See [channel types and permissions](https://zulip.com/help/channel-permissions)
+    for more details.
 
 - Zulip supports editing the content and topics of messages that have
   already been sent. As a general philosophy, our policies provide

web/templates/start_export_modal.hbs

@@ -4,7 +4,7 @@
         A public data export is a complete data export for your organization other than
         <z-private-channel-link>private channel</z-private-channel-link> messages and
         <z-direct-messages-link>direct messages</z-direct-messages-link>.
-        {{#*inline "z-private-channel-link"}}<a href="/help/channel-permissions" target="_blank" rel="noopener noreferrer">{{> @partial-block}}</a>{{/inline}}
+        {{#*inline "z-private-channel-link"}}<a href="/help/channel-permissions#private-channels" target="_blank" rel="noopener noreferrer">{{> @partial-block}}</a>{{/inline}}
         {{#*inline "z-direct-messages-link"}}<a href="/help/direct-messages" target="_blank" rel="noopener noreferrer">{{> @partial-block}}</a>{{/inline}}
     {{/tr}}
 </p>

zerver/openapi/zulip.yaml

@@ -8566,7 +8566,7 @@ paths:
                           a target message ID of `first_message_id_allowed_to_move`, if the user
                           desires to move only the portion of the topic that they can.
 
-                          Note that in a channel with [protected history](/help/channel-permissions),
+                          Note that in a [private channel with protected history][private-channels],
                           the Zulip security model requires that the above calculations only include
                           messages the acting user has access to. So in the rare case of a user
                           attempting to move a topic that started before the user joined a private
@@ -8575,6 +8575,8 @@ paths:
                           dialog.
 
                           **Changes**: New in Zulip 7.0 (feature level 172).
+
+                          [private-channels]: /help/channel-permissions#private-channels
                   - allOf:
                       - $ref: "#/components/schemas/CodedError"
                       - example:
@@ -10049,12 +10051,13 @@ paths:
       description: |
         Get all topics the user has access to in a specific channel.
 
-        Note that for private channels with [protected
-        history](/help/channel-permissions), the user will only have access to
-        topics of messages sent after they [subscribed to](/api/subscribe) the
-        channel. Similarly, a user's [bot](/help/bots-overview#bot-type)
-        will only have access to messages sent after the bot was subscribed to
-        the channel, instead of when the user subscribed.
+        Note that for [private channels with
+        protected history](/help/channel-permissions#private-channels),
+        the user will only have access to topics of messages sent after they
+        [subscribed to](/api/subscribe) the channel. Similarly, a user's
+        [bot](/help/bots-overview#bot-type) will only have access to messages
+        sent after the bot was subscribed to the channel, instead of when the
+        user subscribed.
       parameters:
         - $ref: "#/components/parameters/ChannelIdInPath"
       responses:
@@ -10212,7 +10215,8 @@ paths:
         by the optional parameters, like `invite_only`, detailed below.
 
         Note that the ability to subscribe oneself and/or other users to a specified
-        channel depends on the [channel's privacy settings](/help/channel-permissions).
+        channel depends on the [channel's type: private, public, or
+        web-public](/help/channel-permissions).
 
         **Changes**: Removed `stream_post_policy` and `is_announcement_only`
         parameters in Zulip 10.0 (feature level 333), as permission to post
@@ -20042,8 +20046,8 @@ paths:
                     newly subscribed members, or users can only access messages
                     they actually received while subscribed to the channel.
 
-                    Corresponds to the [shared history](/help/channel-permissions)
-                    option in documentation.
+                    Corresponds to the shared history option for
+                    [private channels](/help/channel-permissions#private-channels).
 
                     It's an error for this parameter to be false for a public or
                     web-public channel and when is_private is false.
@@ -24564,8 +24568,8 @@ components:
         newly subscribed members, or users can only access messages
         they actually received while subscribed to the channel.
 
-        Corresponds to the [shared history](/help/channel-permissions)
-        option in documentation.
+        Corresponds to the shared history option for
+        [private channels](/help/channel-permissions#private-channels).
       type: boolean
       example: false
     Principals: