296 lines
9.9 KiB
Rust
296 lines
9.9 KiB
Rust
use super::*;
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use crate::cache::Cache;
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use crate::model::{
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Error, Result,
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auth::User,
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communities::{Community, CommunityWriteAccess, Post, PostContext},
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permissions::FinePermission,
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};
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use crate::{auto_method, execute, get, query_row, query_rows};
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#[cfg(feature = "sqlite")]
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use rusqlite::Row;
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#[cfg(feature = "postgres")]
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use tokio_postgres::Row;
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impl DataManager {
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/// Get a [`Post`] from an SQL row.
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pub(crate) fn get_post_from_row(
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#[cfg(feature = "sqlite")] x: &Row<'_>,
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#[cfg(feature = "postgres")] x: &Row,
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) -> Post {
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Post {
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id: get!(x->0(isize)) as usize,
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created: get!(x->1(isize)) as usize,
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content: get!(x->2(String)),
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owner: get!(x->3(isize)) as usize,
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community: get!(x->4(isize)) as usize,
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context: serde_json::from_str(&get!(x->5(String))).unwrap(),
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replying_to: if let Some(id) = get!(x->6(Option<i64>)) {
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Some(id as usize)
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} else {
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None
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},
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// likes
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likes: get!(x->7(isize)) as isize,
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dislikes: get!(x->8(isize)) as isize,
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// other counts
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comment_count: get!(x->9(isize)) as usize,
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}
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}
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auto_method!(get_post_by_id()@get_post_from_row -> "SELECT * FROM posts WHERE id = $1" --name="post" --returns=Post --cache-key-tmpl="atto.post:{}");
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/// Get all posts which are comments on the given post by ID.
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///
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/// # Arguments
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/// * `id` - the ID of the post the requested posts are commenting on
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/// * `batch` - the limit of posts in each page
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/// * `page` - the page number
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pub async fn get_post_comments(
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&self,
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id: usize,
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batch: usize,
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page: usize,
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) -> Result<Vec<Post>> {
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let conn = match self.connect().await {
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Ok(c) => c,
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Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
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};
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let res = query_rows!(
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&conn,
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"SELECT * FROM posts WHERE replying_to = $1 ORDER BY created DESC LIMIT $2 OFFSET $3",
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&[&(id as i64), &(batch as i64), &((page * batch) as i64)],
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|x| { Self::get_post_from_row(x) }
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);
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if res.is_err() {
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return Err(Error::GeneralNotFound("post".to_string()));
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}
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Ok(res.unwrap())
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}
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/// Complete a vector of just posts with their owner as well.
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pub async fn fill_posts(&self, posts: Vec<Post>) -> Result<Vec<(Post, User)>> {
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let mut out: Vec<(Post, User)> = Vec::new();
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for post in posts {
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let owner = post.owner.clone();
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out.push((post, self.get_user_by_id(owner).await?));
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}
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Ok(out)
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}
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/// Complete a vector of just posts with their owner and community as well.
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pub async fn fill_posts_with_community(
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&self,
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posts: Vec<Post>,
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) -> Result<Vec<(Post, User, Community)>> {
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let mut out: Vec<(Post, User, Community)> = Vec::new();
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for post in posts {
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let owner = post.owner.clone();
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let community = post.community.clone();
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out.push((
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post,
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self.get_user_by_id(owner).await?,
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self.get_community_by_id(community).await?,
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));
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}
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Ok(out)
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}
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/// Get all posts from the given user (from most recent).
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///
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/// # Arguments
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/// * `id` - the ID of the user the requested posts belong to
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/// * `batch` - the limit of posts in each page
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/// * `page` - the page number
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pub async fn get_posts_by_user(
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&self,
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id: usize,
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batch: usize,
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page: usize,
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) -> Result<Vec<Post>> {
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let conn = match self.connect().await {
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Ok(c) => c,
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Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
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};
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let res = query_rows!(
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&conn,
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"SELECT * FROM posts WHERE owner = $1 ORDER BY created DESC LIMIT $2 OFFSET $3",
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&[&(id as i64), &(batch as i64), &((page * batch) as i64)],
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|x| { Self::get_post_from_row(x) }
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);
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if res.is_err() {
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return Err(Error::GeneralNotFound("post".to_string()));
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}
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Ok(res.unwrap())
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}
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/// Get all posts from the given community (from most recent).
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///
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/// # Arguments
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/// * `id` - the ID of the community the requested posts belong to
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/// * `batch` - the limit of posts in each page
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/// * `page` - the page number
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pub async fn get_posts_by_community(
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&self,
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id: usize,
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batch: usize,
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page: usize,
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) -> Result<Vec<Post>> {
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let conn = match self.connect().await {
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Ok(c) => c,
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Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
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};
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let res = query_rows!(
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&conn,
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"SELECT * FROM posts WHERE community = $1 AND replying_to IS NULL ORDER BY created DESC LIMIT $2 OFFSET $3",
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&[&(id as i64), &(batch as i64), &((page * batch) as i64)],
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|x| { Self::get_post_from_row(x) }
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);
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if res.is_err() {
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return Err(Error::GeneralNotFound("post".to_string()));
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}
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Ok(res.unwrap())
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}
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/// Create a new journal entry in the database.
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///
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/// # Arguments
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/// * `data` - a mock [`JournalEntry`] object to insert
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pub async fn create_post(&self, data: Post) -> Result<usize> {
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// check values
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if data.content.len() < 2 {
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return Err(Error::DataTooShort("content".to_string()));
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} else if data.content.len() > 4096 {
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return Err(Error::DataTooLong("username".to_string()));
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}
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// check permission in community
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let community = match self.get_community_by_id(data.community).await {
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Ok(p) => p,
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Err(e) => return Err(e),
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};
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match community.write_access {
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CommunityWriteAccess::Owner => {
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if data.owner != community.owner {
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return Err(Error::NotAllowed);
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}
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}
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CommunityWriteAccess::Joined => {
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if let Err(_) = self
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.get_membership_by_owner_community(data.owner, community.id)
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.await
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{
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return Err(Error::NotAllowed);
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}
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}
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_ => (),
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};
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// check if we're blocked
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if let Some(replying_to) = data.replying_to {
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if let Ok(_) = self
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.get_userblock_by_initiator_receiver(replying_to, data.owner)
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.await
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{
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return Err(Error::NotAllowed);
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}
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}
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// ...
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let conn = match self.connect().await {
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Ok(c) => c,
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Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
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};
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let res = execute!(
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&conn,
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"INSERT INTO posts VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)",
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&[
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&Some(data.id.to_string()),
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&Some(data.created.to_string()),
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&Some(data.content),
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&Some(data.owner.to_string()),
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&Some(data.community.to_string()),
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&Some(serde_json::to_string(&data.context).unwrap()),
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&if let Some(id) = data.replying_to {
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Some(id.to_string())
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} else {
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None
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},
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&Some(0.to_string()),
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&Some(0.to_string()),
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&Some(0.to_string())
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]
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);
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if let Err(e) = res {
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return Err(Error::DatabaseError(e.to_string()));
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}
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// incr comment count
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if let Some(id) = data.replying_to {
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self.incr_post_comments(id).await.unwrap();
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}
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// return
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Ok(data.id)
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}
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pub async fn delete_post(&self, id: usize, user: User) -> Result<()> {
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let y = self.get_post_by_id(id).await?;
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if user.id != y.owner {
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if !user.permissions.check(FinePermission::MANAGE_POSTS) {
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return Err(Error::NotAllowed);
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}
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}
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let conn = match self.connect().await {
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Ok(c) => c,
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Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
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};
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let res = execute!(&conn, "DELETE FROM posts WHERE id = $1", &[&id.to_string()]);
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if let Err(e) = res {
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return Err(Error::DatabaseError(e.to_string()));
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}
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self.2.remove(format!("atto.post:{}", id)).await;
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// decr parent comment count
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if let Some(replying_to) = y.replying_to {
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self.decr_post_comments(replying_to).await.unwrap();
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}
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// return
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Ok(())
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}
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auto_method!(update_post_content(String)@get_post_by_id:MANAGE_POSTS -> "UPDATE posts SET content = $1 WHERE id = $2" --cache-key-tmpl="atto.post:{}");
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auto_method!(update_post_context(PostContext)@get_post_by_id:MANAGE_POSTS -> "UPDATE posts SET context = $1 WHERE id = $2" --serde --cache-key-tmpl="atto.post:{}");
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auto_method!(incr_post_likes() -> "UPDATE posts SET likes = likes + 1 WHERE id = $1" --cache-key-tmpl="atto.post:{}" --incr);
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auto_method!(incr_post_dislikes() -> "UPDATE posts SET likes = dislikes + 1 WHERE id = $1" --cache-key-tmpl="atto.post:{}" --incr);
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auto_method!(decr_post_likes() -> "UPDATE posts SET likes = likes - 1 WHERE id = $1" --cache-key-tmpl="atto.post:{}" --decr);
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auto_method!(decr_post_dislikes() -> "UPDATE posts SET likes = dislikes - 1 WHERE id = $1" --cache-key-tmpl="atto.post:{}" --decr);
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auto_method!(incr_post_comments() -> "UPDATE posts SET comment_count = comment_count + 1 WHERE id = $1" --cache-key-tmpl="atto.post:{}" --incr);
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auto_method!(decr_post_comments() -> "UPDATE posts SET comment_count = comment_count - 1 WHERE id = $1" --cache-key-tmpl="atto.post:{}" --decr);
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}
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