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babyrite::expand::discord

Struct Preview

pub struct Preview {
    pub message: Message,
    pub channel: GuildChannel,
}

Expand description

A preview containing the message and its channel.

Fields§

§message: Message

The message to preview.

§channel: GuildChannel

The channel containing the message.

Implementations§

impl Preview

async fn get( args: &MessageLinkIDs, ctx: &Context, source_channel: &GuildChannel, ) -> Result<Preview, PreviewError>

Retrieves a preview for the given message link.

Every rule deciding whether a link may be expanded lives here. In order, the link must point into the same guild as source_channel, and the linked channel must not be NSFW, must not be a private thread or DM, and must be viewable by everyone who can view source_channel. The expanded content is posted as a single message that all members of source_channel can read, so the linked channel must be at least as visible as the source channel to avoid leaking restricted content. Public and news threads are judged by their parent channel, which holds both the permission overwrites and the NSFW flag they inherit.

The guild boundary is checked before the channel is resolved. Roles and permission overwrites are guild-local, so a link into another guild cannot be judged at all, and resolving it would spend rate limit on a guild the bot may not even be in.

When the link target is the same channel as source_channel, the visibility checks are skipped entirely: the reply lands in that same channel, so it cannot expose anything its readers cannot already see.

Trait Implementations§

impl Debug for Preview

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for Preview

impl RefUnwindSafe for Preview

impl Send for Preview

impl Sync for Preview

impl Unpin for Preview

impl UnsafeUnpin for Preview

impl UnwindSafe for Preview

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

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impl<T> DebuggableStorage for T
where T: Any + Send + Sync + Debug,

impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

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type Init = T

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Mutably dereferences the given pointer. Read more

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Drops the object pointed to by the given pointer. Read more

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where T: Sized + Policy<B, E>, P: Policy<B, E>,

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where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more

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