tetratto_core/database/
stackblocks.rs

1use oiseau::cache::Cache;
2use crate::model::stacks::StackPrivacy;
3use crate::model::{Error, Result, auth::User, stacks::StackBlock, permissions::FinePermission};
4use crate::{auto_method, DataManager};
5
6use oiseau::PostgresRow;
7
8use oiseau::{execute, get, params, query_row, query_rows};
9
10impl DataManager {
11    /// Get a [`StackBlock`] from an SQL row.
12    pub(crate) fn get_stackblock_from_row(x: &PostgresRow) -> StackBlock {
13        StackBlock {
14            id: get!(x->0(i64)) as usize,
15            created: get!(x->1(i64)) as usize,
16            initiator: get!(x->2(i64)) as usize,
17            stack: get!(x->3(i64)) as usize,
18        }
19    }
20
21    auto_method!(get_stackblock_by_id()@get_stackblock_from_row -> "SELECT * FROM stackblocks WHERE id = $1" --name="stack block" --returns=StackBlock --cache-key-tmpl="atto.stackblock:{}");
22
23    pub async fn get_user_stack_blocked_users(&self, user_id: usize) -> Vec<usize> {
24        let mut stack_block_users = Vec::new();
25
26        for block in self.get_stackblocks_by_initiator(user_id).await {
27            for user in match self.fill_stackblocks_receivers(block.stack).await {
28                Ok(ul) => ul,
29                Err(_) => continue,
30            } {
31                stack_block_users.push(user);
32            }
33        }
34
35        stack_block_users
36    }
37
38    /// Fill a vector of stack blocks with their receivers (by pulling the stack).
39    pub async fn fill_stackblocks_receivers(&self, stack: usize) -> Result<Vec<usize>> {
40        let stack = self.get_stack_by_id(stack).await?;
41        let mut out = Vec::new();
42
43        for block in stack.users {
44            out.push(block);
45        }
46
47        Ok(out)
48    }
49
50    /// Get all stack blocks created by the given `initiator`.
51    pub async fn get_stackblocks_by_initiator(&self, initiator: usize) -> Vec<StackBlock> {
52        let conn = match self.0.connect().await {
53            Ok(c) => c,
54            Err(_) => return Vec::new(),
55        };
56
57        let res = query_rows!(
58            &conn,
59            "SELECT * FROM stackblocks WHERE initiator = $1",
60            &[&(initiator as i64)],
61            |x| { Self::get_stackblock_from_row(x) }
62        );
63
64        if res.is_err() {
65            return Vec::new();
66        }
67
68        // make sure all stacks still exist
69        let list = res.unwrap();
70
71        for block in &list {
72            if self.get_stack_by_id(block.stack).await.is_err()
73                && self.delete_stackblock_sudo(block.id).await.is_err() {
74                    continue;
75                }
76        }
77
78        // return
79        list
80    }
81
82    /// Get a stack block by `initiator` and `stack` (in that order).
83    pub async fn get_stackblock_by_initiator_stack(
84        &self,
85        initiator: usize,
86        stack: usize,
87    ) -> Result<StackBlock> {
88        let conn = match self.0.connect().await {
89            Ok(c) => c,
90            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
91        };
92
93        let res = query_row!(
94            &conn,
95            "SELECT * FROM stackblocks WHERE initiator = $1 AND stack = $2",
96            &[&(initiator as i64), &(stack as i64)],
97            |x| { Ok(Self::get_stackblock_from_row(x)) }
98        );
99
100        if res.is_err() {
101            return Err(Error::GeneralNotFound("stack block".to_string()));
102        }
103
104        Ok(res.unwrap())
105    }
106
107    const MAXIMUM_FREE_STACKBLOCKS: usize = 5;
108    const MAXIMUM_SUPPORTER_STACKBLOCKS: usize = 10;
109
110    /// Create a new stack block in the database.
111    ///
112    /// # Arguments
113    /// * `data` - a mock [`StackBlock`] object to insert
114    pub async fn create_stackblock(&self, data: StackBlock) -> Result<()> {
115        let initiator = self.get_user_by_id(data.initiator).await?;
116
117        // check number of stackblocks
118        let stackblocks = self.get_stackblocks_by_initiator(data.initiator).await;
119
120        if !initiator.permissions.check(FinePermission::SUPPORTER) {
121            if stackblocks.len() >= Self::MAXIMUM_FREE_STACKBLOCKS {
122                return Err(Error::MiscError(
123                    "You already have the maximum number of stack blocks you can have".to_string(),
124                ));
125            }
126        } else if stackblocks.len() >= Self::MAXIMUM_SUPPORTER_STACKBLOCKS {
127            return Err(Error::MiscError(
128                "You already have the maximum number of stack blocks you can have".to_string(),
129            ));
130        }
131
132        // ...
133        let stack = self.get_stack_by_id(data.stack).await?;
134
135        if initiator.id != stack.owner
136            && stack.privacy == StackPrivacy::Private
137            && !initiator.permissions.check(FinePermission::MANAGE_STACKS)
138        {
139            return Err(Error::NotAllowed);
140        }
141
142        // ...
143        let conn = match self.0.connect().await {
144            Ok(c) => c,
145            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
146        };
147
148        let res = execute!(
149            &conn,
150            "INSERT INTO stackblocks VALUES ($1, $2, $3, $4)",
151            params![
152                &(data.id as i64),
153                &(data.created as i64),
154                &(data.initiator as i64),
155                &(data.stack as i64)
156            ]
157        );
158
159        if let Err(e) = res {
160            return Err(Error::DatabaseError(e.to_string()));
161        }
162
163        // unfollow/remove follower
164        for user in stack.users {
165            if let Ok(f) = self
166                .get_userfollow_by_initiator_receiver(data.initiator, user)
167                .await
168            {
169                self.delete_userfollow_sudo(f.id, data.initiator).await?;
170            }
171
172            if let Ok(f) = self
173                .get_userfollow_by_receiver_initiator(data.initiator, user)
174                .await
175            {
176                self.delete_userfollow_sudo(f.id, data.initiator).await?;
177            }
178        }
179
180        // return
181        Ok(())
182    }
183
184    pub async fn delete_stackblock(&self, id: usize, user: User) -> Result<()> {
185        let block = self.get_stackblock_by_id(id).await?;
186
187        if user.id != block.initiator {
188            // only the initiator (or moderators) can delete stack blocks!
189            if !user.permissions.check(FinePermission::MANAGE_FOLLOWS) {
190                return Err(Error::NotAllowed);
191            }
192        }
193
194        let conn = match self.0.connect().await {
195            Ok(c) => c,
196            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
197        };
198
199        let res = execute!(
200            &conn,
201            "DELETE FROM stackblocks WHERE id = $1",
202            &[&(id as i64)]
203        );
204
205        if let Err(e) = res {
206            return Err(Error::DatabaseError(e.to_string()));
207        }
208
209        self.0.1.remove(format!("atto.stackblock:{}", id)).await;
210
211        // return
212        Ok(())
213    }
214
215    pub async fn delete_stackblock_sudo(&self, id: usize) -> Result<()> {
216        let conn = match self.0.connect().await {
217            Ok(c) => c,
218            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
219        };
220
221        let res = execute!(
222            &conn,
223            "DELETE FROM stackblocks WHERE id = $1",
224            &[&(id as i64)]
225        );
226
227        if let Err(e) = res {
228            return Err(Error::DatabaseError(e.to_string()));
229        }
230
231        self.0.1.remove(format!("atto.stackblock:{}", id)).await;
232
233        // return
234        Ok(())
235    }
236}
tetratto_core/database/stackblocks.rs

tetratto_core/database/
stackblocks.rs
