This optimizes a hot path when users are being removed from one or more groups since we use the `on(:user_removed_from_group)` event to call the `Chat::AutoLeaveChannels` with a `user_id` parameter. In such case, we don't need to clear the membership of all users, just that one user.
DEBUG: Also added a "-- event = <event>" comment on top of the SQL queries used by the "AutoLeaveChannels" so they show up in the logs and hopefully facilitate any performance issues that might arise in the future.
Blocks allow BOTS to augment the capacities of a chat message. At the moment only one block is available: `actions`, accepting only one type of element: `button`.
<img width="708" alt="Screenshot 2024-11-15 at 19 14 02" src="https://github.com/user-attachments/assets/63f32a29-05b1-4f32-9edd-8d8e1007d705">
# Usage
```ruby
Chat::CreateMessage.call(
params: {
message: "Welcome!",
chat_channel_id: 2,
blocks: [
{
type: "actions",
elements: [
{ value: "foo", type: "button", text: { text: "How can I install themes?", type: "plain_text" } }
]
}
]
},
guardian: Discourse.system_user.guardian
)
```
# Documentation
## Blocks
### Actions
Holds interactive elements: button.
#### Fields
| Field | Type | Description | Required? |
|--------|--------|--------|--------|
| type | string | For an actions block, type is always `actions` | Yes |
| elements | array | An array of interactive elements, maximum 10 elements | Yes |
| block_id | string | An unique identifier for the block, will be generated if not specified. It has to be unique per message | No |
#### Example
```json
{
"type": "actions",
"block_id": "actions_1",
"elements": [...]
}
```
## Elements
### Button
#### Fields
| Field | Type | Description | Required? |
|--------|--------|--------|--------|
| type | string | For a button, type is always `button` | Yes |
| text | object | A text object holding the type and text. Max 75 characters | Yes |
| value | string | The value returned after the interaction has been validated. Maximum length is 2000 characters | No |
| style | string | Can be `primary` , `success` or `danger` | No |
| action_id | string | An unique identifier for the action, will be generated if not specified. It has to be unique per message | No |
#### Example
```json
{
"type": "actions",
"block_id": "actions_1",
"elements": [
{
"type": "button",
"text": {
"type": "plain_text",
"text": "Ok"
},
"value": "ok",
"action_id": "button_1"
}
]
}
```
## Interactions
When a user interactions with a button the following flow will happen:
- We send an interaction request to the server
- Server checks if the user can make this interaction
- If the user can make this interaction, the server will:
* `DiscourseEvent.trigger(:chat_message_interaction, interaction)`
* return a JSON document
```json
{
"interaction": {
"user": {
"id": 1,
"username": "j.jaffeux"
},
"channel": {
"id": 1,
"title": "Staff"
},
"message": {
"id": 1,
"text": "test",
"user_id": -1
},
"action": {
"text": {
"text": "How to install themes?",
"type": "plain_text"
},
"type": "button",
"value": "click_me_123",
"action_id": "bf4f30b9-de99-4959-b3f5-632a6a1add04"
}
}
}
```
* Fire a `appEvents.trigger("chat:message_interaction", interaction)`
Chat channels that are linked to a category can be set to automatically join users.
This is handled by subscribing to the following events
- group_destroyed
- user_seen
- user_confirmed_email
- user_added_to_group
- user_removed_from_group
- category_updated
- site_setting_changed (for `chat_allowed_groups`)
As well as a
- hourly background job (`AutoJoinUsers`)
- `CreateCategoryChannel` service
- `UpdateChannel` service
There was however two issues with the current implementation
1. We were triggering a lot of background jobs, mostly because it was decided to batch to auto join/leave into groups of 1000 users, adding a lot of stress to the system
2. We had one "class" (a service or a background job) per "event" and all of them had slightly different ways to select users to join/leave, making it hard to keep everything in sync
This PR "simply" adds two new servicesL `AutoJoinChannels` and `AutoLeaveChannels` that takes care, in an efficient way, of all the cases when users might automatically join a leave a chat channel.
Every other changes come from the fact that we're now always calling either one of those services, depending on the event that happened.
In the making of these classes, a few bugs were encountered and fixed, notably
- A user is only ever able to access chat channels if and only if they're part of a group listed in the `chat_allowed_group` site setting
- A category that has no associated "category groups" is only accessible to staff members (and not "Everyone")
- A silenced user should not be able to automatically join channels
- We should not attempt to automatically join users to deleted chat channels
- There is no need to automatically join users to chat channels that have already more than `max_chat_auto_joined_users` users
Internal - t/135259 & t/70607
* DEV: add specs for auto join/leave channels services
* DEV: less hacky specs
* DEV: no instance variables in specs
There's no UI for it at the moment but when creating a channel or updating it, it's now possible to pass `icon_upload_id` as param. This will be available on the channel as `icon_upload_url`.
* DEV: join/leave presence chat-reply when streaming
This commit ensures that starting/stopping a chat message with the streaming option will automatically make the creator of the message as present in the chat-reply channel.
* implements start/stop reply
* not needed
When adding threads to DM channels in #29170 we intentionally didn't add them to the My Threads section. However this makes it easy to miss notifications as we don't get the new thread badge on the sidebar and footer tabs (drawer/mobile). However they were also missing from the chat header and sidebar too, which is fixed with this PR.
When a new thread or a reply to an existing thread is created within a DM channel (either 1:1 or group), we now show the standard badges like we do for public channels.
We now also show the green dot in the sidebar for My Threads and public channels when they contain an unread watched thread.
This patch replaces the parameters provided to a service through
`params` by the contract object.
That way, it allows better consistency when accessing input params. For
example, if you have a service without a contract, to access a
parameter, you need to use `params[:my_parameter]`. But with a contract,
you do this through `contract.my_parameter`. Now, with this patch,
you’ll be able to access it through `params.my_parameter` or
`params[:my_parameter]`.
Some methods have been added to the contract object to better mimic a
Hash. That way, when accessing/using `params`, you don’t have to think
too much about it:
- `params.my_key` is also accessible through `params[:my_key]`.
- `params.my_key = value` can also be done through `params[:my_key] =
value`.
- `#slice` and `#merge` are available.
- `#to_hash` has been implemented, so the contract object will be
automatically cast as a hash by Ruby depending on the context. For
example, with an AR model, you can do this: `user.update(**params)`.
Currently in services, we don’t make a distinction between input
parameters, options and dependencies.
This can lead to user input modifying the service behavior, whereas it
was not the developer intention.
This patch addresses the issue by changing how data is provided to
services:
- `params` is now used to hold all data coming from outside (typically
user input from a controller) and a contract will take its values from
`params`.
- `options` is a new key to provide options to a service. This typically
allows changing a service behavior at runtime. It is, of course,
totally optional.
- `dependencies` is actually anything else provided to the service (like
`guardian`) and available directly from the context object.
The `service_params` helper in controllers has been updated to reflect
those changes, so most of the existing services didn’t need specific
changes.
The options block has the same DSL as contracts, as it’s also based on
`ActiveModel`. There aren’t any validations, though. Here’s an example:
```ruby
options do
attribute :allow_changing_hidden, :boolean, default: false
end
```
And here’s an example of how to call a service with the new keys:
```ruby
MyService.call(params: { key1: value1, … }, options: { my_option: true }, guardian:, …)
```
This is extracted from https://github.com/discourse/discourse/pull/29129.
In some chat specs, we provide an array as a value for group lists like
`chat_allowed_groups`, which is wrong. This results in a value like
`"1|2|[3]"` instead of `"1|2|3"`.
On the chat channel settings page, we want to show a single Send push notifications setting instead of the current Desktop notifications and Mobile push notifications settings.
For existing users, use the Mobile push notifications setting value for the new Send push notifications setting.
This will help to enforce a consistent pattern for creating service
actions.
This patch also namespaces actions and policies, making everything
related to a service available directly in
`app/services/<concept-name>`, making things more consistent at that
level too.
This change introduces a new thread notification level allowing users to get notified when someone replies to the thread.
Users who watch a thread will get a green notification on the chat icon and a user notification (blue). User notifications are consolidated based on thread id to prevent cluttering the original users notification area.
---------
Co-authored-by: Régis Hanol <regis@hanol.fr>
The message grace edit window (10 seconds) was too short after freezing time, possibly causing the test to fail occasionally if the record is not updated within 5 seconds.
This change allows the correct number of members to be added when creating a group direct message, based on the site setting chat_max_direct_message_users.
Previously we counted the current user within the max user limit and therefore the count was off by 1.
Before this fix we could only list messages of a thread if it was part of a `threading_enabled` channel or if the thread was set to `force`.
Due to our design of also using a thread id when this is just a chain of replies so we can switch from threading enabled to disabled at any time, we will allow `Chat:: ListChannelThreadMessages` to list the messages of any thread, the only important requirements are:
- having a thread id
- being able to access this thread
To allow this, this commit simply removes the check on `threading_enabled` or `force`.
Prior to this commit, only system users had this pass.
Another significant change of the PR, is to make membership of a channel the angular stone of the permission check to create/update/stop streaming a message. The idea being, if you are a member of a channel already we don't need to check if you can join it AGAIN.
We also have `Chat::AutoRemove::HandleCategoryUpdated` which will deal with permissions change so it's simpler and less prone to error to consider the membership as the only source of truth.
There's no point checking if a user can join a channel if they are already part of it. This case was frequent when using `enforce_membership: true` for custom bots for example.
This commit introduces several enhancements to the ChatSDK module, aiming to improve the functionality and usability of chat thread interactions. Here's what has been changed and added:
1. **New Method: `first_messages`:**
- Added a method to retrieve the first set of messages from a specified chat thread.
- This method is particularly useful for fetching initial messages when entering a chat thread.
- Parameters include `thread_id`, `guardian`, and an optional `page_size` which defaults to 10.
- Usage example added to demonstrate fetching the first 15 messages from a thread.
2. **New Method: `last_messages`:**
- Added a method to retrieve the last set of messages from a specified chat thread.
- This method supports reverse pagination, where the user may want to see the most recent messages first.
- Similar to `first_messages`, it accepts `thread_id`, `guardian`, and an optional `page_size` parameter, defaulting to 10.
- Usage example provided to illustrate fetching the last 20 messages from a thread.
The TextCleaner step has been moved from chat message’s validation to create_message/update_message services. It allows us to easily tweak part of its behavior depending on the needs.
For example we will now disable strip_whitespaces by default when streaming messages as we want to keep newlines and spaces at the end of the message.
This change encourages users to title their threads to make it easier for other users to join in on conversations that matter to them.
The creator of the chat thread will receive a toast notification prompting them to add a thread title when on mobile and the thread has at least 5 sent replies.
This change moves the chat message excerpt into a new database column (string) on the chat_messages table.
As part of this change, we will now set the excerpt within the `Chat::CreateMessage` service, and update it within the `Chat::UpdateMessage` service.
This commit will now allow us to track read position in a thread and returns to this position when you open the thread.
Note this commit is also extracting the following components to make it possible:
- `<ChatMessagesScroller />`
- `<ChatMessagesContainer />`
The `UpdateUserThreadLastRead` has been updated to allow this.
Various refactorings have also been done to the code and specs to improve the support of last read.
Why this change?
When the site setting for chat_max_direct_message_users is set to 1, it is expected that users can have a 1:1 chat with other users. However, since the current user is counting as 1 user it makes starting a new chat impossible.
This change hands this validation off to DirectMessageChannel::MaxUsersExcessPolicy which handles the count correctly by filtering out the current user.
This enables the following in Discourse AI
```
plugin.register_modifier(:chat_allowed_bot_user_ids) do |user_ids, guardian|
if guardian.user
mentionables = AiPersona.mentionables(user: guardian.user)
allowed_bot_ids = mentionables.map { |mentionable| mentionable[:user_id] }
user_ids.concat(allowed_bot_ids)
end
user_ids
end
```
some bots that are id < 0 need to be discoverable in search otherwise people can not talk to them.
---------
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
We were incorrectly using `return` in a block which was causing exceptions at runtime. These exceptions were not causing much issues as they are in defer block.
While working on writing a test for this specific case, I noticed that our `upsert_custom_fields` function was using rails `update_all` which is not updating the `updated_at` timestamp. This commit also fixes it and adds a test for it.
Prior to this change we would pre-load all the user channels which making initial page load slower. This change will make them be loaded right after initial load. In the past this was not possible as the channels would have to be loaded on each page transition. However since about a year, we made the channels to be cached on the frontend and no other request will be needed.
I have decided for now to not show a loading state in the sidebar as I think it would be noise, but we can reconsider this later.
Note given we don't have the channels loaded at first certain things where harder to accomplish. The biggest UX change of this commit is that we removed all the complex logic of computing the best channel to display when you load /chat. We will now store the id of the last channel you visited and will use this id to decide which channel to show.
Previously services would let you define a high level default `def default_actions_for_service; end` which would define various handlers like `on_success`, after months of usage we consider the cons are superior to the pros here.
Two mains cons:
- people would often not understand where the handling was coming from
- it's easy to miss a case when you write your specs
Forcing a thread will work even in channel which don't have `threading_enabled` or in direct message channels.
For now this feature is only available through the `ChatSDK`:
```ruby
ChatSDK::Message.create(in_reply_to_id: 1, guardian: guardian, raw: "foo bar baz", channel_id: 2, force_thread: true)
```
Prior to this fix if a user had started to reply to a message without actually sending a message, the thread would still be created and we would end up listing it in the threads list of a channel.
This commit also improves adds thread and thread_replies_count to the 4th parameter of the chat_message_created event.
Users can hide their public profile and presence information by checking
“Hide my public profile and presence features” on the
`u/{username}/preferences/interface` page. In that case, we also don't
want to return user status from the server.
This work has been started in https://github.com/discourse/discourse/pull/23946.
The current PR fixes all the remaining places in Core.
Note that the actual fix is quite simple – a5802f484d.
But we had a fair amount of duplication in the code responsible for
the user status serialization, so I had to dry that up first. The refactoring
as well as adding some additional tests is the main part of this PR.
Plugins can now register this modifier:
```ruby
register_modifier(:chat_can_create_direct_message_channel) do |user, target_users|
# your logic which should return true or false
end
```
This commit introduces the possibility to stream messages. To allow plugins to use streaming this commit also ships a `ChatSDK` library to allow to interact with few parts of discourse chat.
```ruby
ChatSDK::Message.create_with_stream(raw: "test") do |helper|
5.times do |i|
is_streaming = helper.stream(raw: "more #{i}")
next if !is_streaming
sleep 2
end
end
```
This commit also introduces all the frontend parts:
- messages can now be marked as streaming
- when streaming their content will be updated when a new content is appended
- a special UI will be showing (a blinking indicator)
- a cancel button allows the user to stop the streaming, when cancelled `helper.stream(...)` will return `false`, and the plugin can decide exit early
In certain cases, chat channels may have empty slugs, it happens when:
1. The `slug_generation_method` setting is set to `None`
2. `slug_generation_method` is set to `ASCII` and a channel with
a Unicode name and an empty slug is created (in this case, the code
that creates channels tries to generate a slug and fallbacks to an empty slug)
At the moment, we have a unique index on the `chat_channels.slug` column
which leads to errors when creating several channels with empty slugs
(Discourse is able to create one such channel, but when trying to create
the second one fails because of the unique constraint). This PR fixes that
by adding a `where` condition to the index. Slugs still have to be unique,
but now many channels may have empty slugs.
This fix is similar to the one we made to the category slugs – 7ba914f1e1.
The service `Chat::CreateMessage` will now accept `context_post_ids` and `context_topic_id` as params. These values represent the topic which might be visible when sending a message (for now, this is only possible when using the drawer).
The `DiscourseEvent` `chat_message_created` will now have the following signature:
```ruby
on(:chat_message_created) do | message, channel, user, meta|
p meta[:context][:post_ids]
end
```
We have all these calls to Group.refresh_automatic_groups! littered throughout the tests. Including tests that are seemingly unrelated to groups. This is because automatic group memberships aren't fabricated when making a vanilla user. There are two places where you'd want to use this:
You have fabricated a user that needs a certain trust level (which is now based on group membership.)
You need the system user to have a certain trust level.
In the first case, we can pass refresh_auto_groups: true to the fabricator instead. This is a more lightweight operation that only considers a single user, instead of all users in all groups.
The second case is no longer a thing after #25400.
Fixes an issue with delayed rendering of the My Threads tab in chat mobile footer.
Previously we made an ajax request to determine the number of threads a user had before rendering the tab, however it is much faster (and better UX) if we can rely on a site setting for this.
The new chat_threads_enabled site setting is set to true when the site has chat channels with threading enabled.
