add: user stacks

crates/core/src/config.rs

@@ -312,6 +312,7 @@ fn default_banned_usernames() -> Vec<String> {
         "post".to_string(),
         "void".to_string(),
         "anonymous".to_string(),
+        "stack".to_string(),
     ]
 }
 

crates/core/src/database/auth.rs

@@ -127,6 +127,16 @@ impl DataManager {
             return Err(Error::MiscError("This username cannot be used".to_string()));
         }
 
+        if data.username.contains(" ") {
+            return Err(Error::MiscError("Name cannot contain spaces".to_string()));
+        } else if data.username.contains("%") {
+            return Err(Error::MiscError("Name cannot contain \"%\"".to_string()));
+        } else if data.username.contains("?") {
+            return Err(Error::MiscError("Name cannot contain \"?\"".to_string()));
+        } else if data.username.contains("&") {
+            return Err(Error::MiscError("Name cannot contain \"&\"".to_string()));
+        }
+
         // make sure username isn't taken
         if self.get_user_by_username(&data.username).await.is_ok() {
             return Err(Error::UsernameInUse);

crates/core/src/database/common.rs

@@ -32,6 +32,7 @@ impl DataManager {
         execute!(&conn, common::CREATE_TABLE_MESSAGES).unwrap();
         execute!(&conn, common::CREATE_TABLE_UPLOADS).unwrap();
         execute!(&conn, common::CREATE_TABLE_EMOJIS).unwrap();
+        execute!(&conn, common::CREATE_TABLE_STACKS).unwrap();
 
         self.2
             .set("atto.active_connections:users".to_string(), "0".to_string())

crates/core/src/database/drivers/common.rs

@@ -17,3 +17,4 @@ pub const CREATE_TABLE_CHANNELS: &str = include_str!("./sql/create_channels.sql"
 pub const CREATE_TABLE_MESSAGES: &str = include_str!("./sql/create_messages.sql");
 pub const CREATE_TABLE_UPLOADS: &str = include_str!("./sql/create_uploads.sql");
 pub const CREATE_TABLE_EMOJIS: &str = include_str!("./sql/create_emojis.sql");
+pub const CREATE_TABLE_STACKS: &str = include_str!("./sql/create_stacks.sql");

crates/core/src/database/drivers/sql/create_stacks.sql

@@ -0,0 +1,8 @@
+CREATE TABLE IF NOT EXISTS stacks (
+    id BIGINT NOT NULL PRIMARY KEY,
+    created BIGINT NOT NULL,
+    owner BIGINT NOT NULL,
+    name TEXT NOT NULL,
+    users TEXT NOT NULL,
+    privacy TEXT NOT NULL
+)

crates/core/src/database/mod.rs

@@ -14,6 +14,7 @@ mod questions;
 mod reactions;
 mod reports;
 mod requests;
+mod stacks;
 mod uploads;
 mod user_warnings;
 mod userblocks;

crates/core/src/database/posts.rs

@@ -732,6 +732,55 @@ impl DataManager {
         Ok(res.unwrap())
     }
 
+    /// Get posts from all users in the given stack.
+    ///
+    /// # Arguments
+    /// * `id` - the ID of the stack
+    /// * `batch` - the limit of posts in each page
+    /// * `page` - the page number
+    pub async fn get_posts_from_stack(
+        &self,
+        id: usize,
+        batch: usize,
+        page: usize,
+    ) -> Result<Vec<Post>> {
+        let users = self.get_stack_by_id(id).await?.users;
+        let mut users = users.iter();
+
+        let first = match users.next() {
+            Some(f) => f,
+            None => return Ok(Vec::new()),
+        };
+
+        let mut query_string: String = String::new();
+
+        for user in users {
+            query_string.push_str(&format!(" OR owner = {}", user));
+        }
+
+        // ...
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = query_rows!(
+            &conn,
+            &format!(
+                "SELECT * FROM posts WHERE (owner = {} {query_string}) AND replying_to = 0 ORDER BY created DESC LIMIT $1 OFFSET $2",
+                first
+            ),
+            &[&(batch as i64), &((page * batch) as i64)],
+            |x| { Self::get_post_from_row(x) }
+        );
+
+        if res.is_err() {
+            return Err(Error::GeneralNotFound("post".to_string()));
+        }
+
+        Ok(res.unwrap())
+    }
+
     /// Check if the given `uid` can post in the given `community`.
     pub async fn check_can_post(&self, community: &Community, uid: usize) -> bool {
         match community.write_access {

crates/core/src/database/stacks.rs

@@ -0,0 +1,133 @@
+use super::*;
+use crate::cache::Cache;
+use crate::model::{
+    Error, Result,
+    auth::User,
+    permissions::FinePermission,
+    stacks::{StackPrivacy, UserStack},
+};
+use crate::{auto_method, execute, get, query_row, query_rows, params};
+
+#[cfg(feature = "sqlite")]
+use rusqlite::Row;
+
+#[cfg(feature = "postgres")]
+use tokio_postgres::Row;
+
+impl DataManager {
+    /// Get a [`UserStack`] from an SQL row.
+    pub(crate) fn get_stack_from_row(
+        #[cfg(feature = "sqlite")] x: &Row<'_>,
+        #[cfg(feature = "postgres")] x: &Row,
+    ) -> UserStack {
+        UserStack {
+            id: get!(x->0(i64)) as usize,
+            created: get!(x->1(i64)) as usize,
+            owner: get!(x->2(i64)) as usize,
+            name: get!(x->3(String)),
+            users: serde_json::from_str(&get!(x->4(String))).unwrap(),
+            privacy: serde_json::from_str(&get!(x->5(String))).unwrap(),
+        }
+    }
+
+    auto_method!(get_stack_by_id(usize as i64)@get_stack_from_row -> "SELECT * FROM stacks WHERE id = $1" --name="stack" --returns=UserStack --cache-key-tmpl="atto.stack:{}");
+
+    /// Get all stacks by user.
+    ///
+    /// # Arguments
+    /// * `id` - the ID of the user to fetch stacks for
+    pub async fn get_stacks_by_owner(&self, id: usize) -> Result<Vec<UserStack>> {
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = query_rows!(
+            &conn,
+            "SELECT * FROM stacks WHERE owner = $1 ORDER BY name ASC",
+            &[&(id as i64)],
+            |x| { Self::get_stack_from_row(x) }
+        );
+
+        if res.is_err() {
+            return Err(Error::GeneralNotFound("stack".to_string()));
+        }
+
+        Ok(res.unwrap())
+    }
+
+    /// Create a new stack in the database.
+    ///
+    /// # Arguments
+    /// * `data` - a mock [`UserStack`] object to insert
+    pub async fn create_stack(&self, data: UserStack) -> Result<UserStack> {
+        // check number of stacks
+        let owner = self.get_user_by_id(data.owner).await?;
+
+        if !owner.permissions.check(FinePermission::SUPPORTER) {
+            let stacks = self.get_stacks_by_owner(data.owner).await?;
+            let maximum_count = 5;
+
+            if stacks.len() >= maximum_count {
+                return Err(Error::MiscError(
+                    "You already have the maximum number of stacks you can have".to_string(),
+                ));
+            }
+        }
+
+        // ...
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(
+            &conn,
+            "INSERT INTO stacks VALUES ($1, $2, $3, $4, $5, $6)",
+            params![
+                &(data.id as i64),
+                &(data.created as i64),
+                &(data.owner as i64),
+                &data.name,
+                &serde_json::to_string(&data.users).unwrap(),
+                &serde_json::to_string(&data.privacy).unwrap(),
+            ]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        Ok(data)
+    }
+
+    pub async fn delete_stack(&self, id: usize, user: &User) -> Result<()> {
+        let stack = self.get_stack_by_id(id).await?;
+
+        // check user permission
+        if user.id != stack.owner {
+            if !user.permissions.check(FinePermission::MANAGE_STACKS) {
+                return Err(Error::NotAllowed);
+            }
+        }
+
+        // ...
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(&conn, "DELETE FROM stacks WHERE id = $1", &[&(id as i64)]);
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        self.2.remove(format!("atto.stack:{}", id)).await;
+        Ok(())
+    }
+
+    auto_method!(update_stack_name(&str)@get_stack_by_id:MANAGE_STACKS -> "UPDATE stacks SET name = $1 WHERE id = $2" --cache-key-tmpl="atto.stack:{}");
+    auto_method!(update_stack_privacy(StackPrivacy)@get_stack_by_id:MANAGE_STACKS -> "UPDATE stacks SET privacy = $1 WHERE id = $2" --serde --cache-key-tmpl="atto.stack:{}");
+    auto_method!(update_stack_users(Vec<usize>)@get_stack_by_id:MANAGE_STACKS -> "UPDATE stacks SET users = $1 WHERE id = $2" --serde --cache-key-tmpl="atto.stack:{}");
+}

crates/core/src/model/mod.rs

@@ -6,6 +6,7 @@ pub mod oauth;
 pub mod permissions;
 pub mod reactions;
 pub mod requests;
+pub mod stacks;
 pub mod uploads;
 
 #[cfg(feature = "redis")]

crates/core/src/model/permissions.rs

@@ -34,6 +34,7 @@ bitflags! {
         const MANAGE_MESSAGES = 1 << 23;
         const MANAGE_UPLOADS = 1 << 24;
         const MANAGE_EMOJIS = 1 << 25;
+        const MANAGE_STACKS = 1 << 26;
 
         const _ = !0;
     }

crates/core/src/model/stacks.rs

@@ -0,0 +1,40 @@
+use serde::{Serialize, Deserialize};
+use tetratto_shared::{snow::Snowflake, unix_epoch_timestamp};
+
+#[derive(Debug, Serialize, Deserialize, PartialEq, Eq)]
+pub enum StackPrivacy {
+    /// Can be viewed by anyone.
+    Public,
+    /// Can only be viewed by the stack's owner (and users with `MANAGE_STACKS`).
+    Private,
+}
+
+impl Default for StackPrivacy {
+    fn default() -> Self {
+        Self::Private
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct UserStack {
+    pub id: usize,
+    pub created: usize,
+    pub owner: usize,
+    pub name: String,
+    pub users: Vec<usize>,
+    pub privacy: StackPrivacy,
+}
+
+impl UserStack {
+    /// Create a new [`UserStack`].
+    pub fn new(name: String, owner: usize, users: Vec<usize>) -> Self {
+        Self {
+            id: Snowflake::new().to_string().parse::<usize>().unwrap(),
+            created: unix_epoch_timestamp() as usize,
+            owner,
+            name,
+            users,
+            privacy: StackPrivacy::default(),
+        }
+    }
+}