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                if self.delete_stackblock_sudo(block.id).await.is_err() {
74                    continue;
75                }
76            }
77        }
78
79        // return
80        list
81    }
82
83    /// Get a stack block by `initiator` and `stack` (in that order).
84    pub async fn get_stackblock_by_initiator_stack(
85        &self,
86        initiator: usize,
87        stack: usize,
88    ) -> Result<StackBlock> {
89        let conn = match self.0.connect().await {
90            Ok(c) => c,
91            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
92        };
93
94        let res = query_row!(
95            &conn,
96            "SELECT * FROM stackblocks WHERE initiator = $1 AND stack = $2",
97            &[&(initiator as i64), &(stack as i64)],
98            |x| { Ok(Self::get_stackblock_from_row(x)) }
99        );
100
101        if res.is_err() {
102            return Err(Error::GeneralNotFound("stack block".to_string()));
103        }
104
105        Ok(res.unwrap())
106    }
107
108    const MAXIMUM_FREE_STACKBLOCKS: usize = 5;
109    const MAXIMUM_SUPPORTER_STACKBLOCKS: usize = 10;
110
111    /// Create a new stack block in the database.
112    ///
113    /// # Arguments
114    /// * `data` - a mock [`StackBlock`] object to insert
115    pub async fn create_stackblock(&self, data: StackBlock) -> Result<()> {
116        let initiator = self.get_user_by_id(data.initiator).await?;
117
118        // check number of stackblocks
119        let stackblocks = self.get_stackblocks_by_initiator(data.initiator).await;
120
121        if !initiator.permissions.check(FinePermission::SUPPORTER) {
122            if stackblocks.len() >= Self::MAXIMUM_FREE_STACKBLOCKS {
123                return Err(Error::MiscError(
124                    "You already have the maximum number of stack blocks you can have".to_string(),
125                ));
126            }
127        } else {
128            if stackblocks.len() >= Self::MAXIMUM_SUPPORTER_STACKBLOCKS {
129                return Err(Error::MiscError(
130                    "You already have the maximum number of stack blocks you can have".to_string(),
131                ));
132            }
133        }
134
135        // ...
136        let stack = self.get_stack_by_id(data.stack).await?;
137
138        if initiator.id != stack.owner
139            && stack.privacy == StackPrivacy::Private
140            && !initiator.permissions.check(FinePermission::MANAGE_STACKS)
141        {
142            return Err(Error::NotAllowed);
143        }
144
145        // ...
146        let conn = match self.0.connect().await {
147            Ok(c) => c,
148            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
149        };
150
151        let res = execute!(
152            &conn,
153            "INSERT INTO stackblocks VALUES ($1, $2, $3, $4)",
154            params![
155                &(data.id as i64),
156                &(data.created as i64),
157                &(data.initiator as i64),
158                &(data.stack as i64)
159            ]
160        );
161
162        if let Err(e) = res {
163            return Err(Error::DatabaseError(e.to_string()));
164        }
165
166        // unfollow/remove follower
167        for user in stack.users {
168            if let Ok(f) = self
169                .get_userfollow_by_initiator_receiver(data.initiator, user)
170                .await
171            {
172                self.delete_userfollow_sudo(f.id, data.initiator).await?;
173            }
174
175            if let Ok(f) = self
176                .get_userfollow_by_receiver_initiator(data.initiator, user)
177                .await
178            {
179                self.delete_userfollow_sudo(f.id, data.initiator).await?;
180            }
181        }
182
183        // return
184        Ok(())
185    }
186
187    pub async fn delete_stackblock(&self, id: usize, user: User) -> Result<()> {
188        let block = self.get_stackblock_by_id(id).await?;
189
190        if user.id != block.initiator {
191            // only the initiator (or moderators) can delete stack blocks!
192            if !user.permissions.check(FinePermission::MANAGE_FOLLOWS) {
193                return Err(Error::NotAllowed);
194            }
195        }
196
197        let conn = match self.0.connect().await {
198            Ok(c) => c,
199            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
200        };
201
202        let res = execute!(
203            &conn,
204            "DELETE FROM stackblocks WHERE id = $1",
205            &[&(id as i64)]
206        );
207
208        if let Err(e) = res {
209            return Err(Error::DatabaseError(e.to_string()));
210        }
211
212        self.0.1.remove(format!("atto.stackblock:{}", id)).await;
213
214        // return
215        Ok(())
216    }
217
218    pub async fn delete_stackblock_sudo(&self, id: usize) -> Result<()> {
219        let conn = match self.0.connect().await {
220            Ok(c) => c,
221            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
222        };
223
224        let res = execute!(
225            &conn,
226            "DELETE FROM stackblocks WHERE id = $1",
227            &[&(id as i64)]
228        );
229
230        if let Err(e) = res {
231            return Err(Error::DatabaseError(e.to_string()));
232        }
233
234        self.0.1.remove(format!("atto.stackblock:{}", id)).await;
235
236        // return
237        Ok(())
238    }
239}
tetratto_core/database/stackblocks.rs

tetratto_core/database/
stackblocks.rs
