feat: add emoji

crates/delta/src/routes/customisation/emoji_create.rs

@@ -0,0 +1,75 @@
+use revolt_quark::models::emoji::EmojiParent;
+use revolt_quark::models::{Emoji, File, User};
+use revolt_quark::{perms, Db, Error, Permission, Result};
+use serde::Deserialize;
+use validator::Validate;
+
+use crate::util::regex::RE_EMOJI;
+
+use rocket::serde::json::Json;
+
+/// # Emoji Data
+#[derive(Validate, Deserialize, JsonSchema)]
+pub struct DataCreateEmoji {
+    /// Server name
+    #[validate(length(min = 1, max = 32), regex = "RE_EMOJI")]
+    name: String,
+    parent: EmojiParent,
+}
+
+/// # Create New Emoji
+///
+/// Create an emoji by its Autumn upload id.
+#[openapi(tag = "Emojis")]
+#[put("/emoji/<id>", data = "<data>")]
+pub async fn create_emoji(
+    db: &Db,
+    user: User,
+    id: String,
+    data: Json<DataCreateEmoji>,
+) -> Result<Json<Emoji>> {
+    let data = data.into_inner();
+    data.validate()
+        .map_err(|error| Error::FailedValidation { error })?;
+
+    // Bots cannot manage emojis
+    if user.bot.is_some() {
+        return Err(Error::IsBot);
+    }
+
+    // Validate we have permission to write into parent
+    match &data.parent {
+        EmojiParent::Server { id } => {
+            let server = db.fetch_server(id).await?;
+
+            // Check for permission
+            perms(&user)
+                .server(&server)
+                .throw_permission(db, Permission::ManageCustomisation)
+                .await?;
+
+            // Check that there are no more than 100 emoji
+            // ! FIXME: hardcoded upper limit
+            let emojis = db.fetch_emoji_by_parent_id(&server.id).await?;
+            if emojis.len() > 100 {
+                return Err(Error::TooManyEmoji);
+            }
+        }
+    };
+
+    // Find the relevant attachment
+    let attachment = File::use_emoji(db, &id, &id).await?;
+
+    // Create the emoji object
+    let emoji = Emoji {
+        id,
+        parent: data.parent,
+        creator_id: user.id,
+        name: data.name,
+        animated: "image/gif" == &attachment.content_type,
+    };
+
+    // Save emoji
+    emoji.create(db).await?;
+    Ok(Json(emoji))
+}

crates/delta/src/routes/customisation/emoji_delete.rs

@@ -0,0 +1,36 @@
+use revolt_quark::models::{emoji::EmojiParent, User};
+use revolt_quark::{perms, Db, EmptyResponse, Error, Permission, Ref, Result};
+
+/// # Delete Emoji
+///
+/// Delete an emoji by its id.
+#[openapi(tag = "Emojis")]
+#[delete("/emoji/<id>")]
+pub async fn delete_emoji(db: &Db, user: User, id: Ref) -> Result<EmptyResponse> {
+    // Bots cannot manage emoji
+    if user.bot.is_some() {
+        return Err(Error::IsBot);
+    }
+
+    // Fetch the emoji
+    let emoji = id.as_emoji(db).await?;
+
+    // If we uploaded the emoji, then we have permission to delete it
+    if emoji.creator_id != user.id {
+        // Otherwise, validate we have permission to delete from parent
+        match &emoji.parent {
+            EmojiParent::Server { id } => {
+                let server = db.fetch_server(id).await?;
+
+                // Check for permission
+                perms(&user)
+                    .server(&server)
+                    .throw_permission(db, Permission::ManageCustomisation)
+                    .await?;
+            }
+        };
+    }
+
+    // Delete the emoji
+    emoji.delete(db).await.map(|_| EmptyResponse)
+}

crates/delta/src/routes/customisation/emoji_fetch.rs

@@ -0,0 +1,13 @@
+use revolt_quark::models::{Emoji, User};
+use revolt_quark::{Db, Ref, Result};
+
+use rocket::serde::json::Json;
+
+/// # Fetch Emoji
+///
+/// Fetch an emoji by its id.
+#[openapi(tag = "Emojis")]
+#[get("/emoji/<id>")]
+pub async fn fetch_emoji(db: &Db, _user: User, id: Ref) -> Result<Json<Emoji>> {
+    id.as_emoji(db).await.map(Json)
+}

crates/delta/src/routes/customisation/mod.rs

@@ -0,0 +1,14 @@
+use rocket::Route;
+use rocket_okapi::okapi::openapi3::OpenApi;
+
+mod emoji_create;
+mod emoji_delete;
+mod emoji_fetch;
+
+pub fn routes() -> (Vec<Route>, OpenApi) {
+    openapi_get_routes_spec![
+        emoji_create::create_emoji,
+        emoji_delete::delete_emoji,
+        emoji_fetch::fetch_emoji
+    ]
+}