stellar_base/operations/
path_payment_strict_send.rs

1use crate::amount::Stroops;
2use crate::asset::Asset;
3use crate::crypto::MuxedAccount;
4use crate::error::{Error, Result};
5use crate::operations::Operation;
6use crate::xdr;
7use std::convert::TryInto;
8
9#[derive(Debug, Clone, PartialEq, Eq)]
10pub struct PathPaymentStrictSendOperation {
11    source_account: Option<MuxedAccount>,
12    destination: MuxedAccount,
13    send_asset: Asset,
14    send_amount: Stroops,
15    destination_asset: Asset,
16    destination_min: Stroops,
17    path: Vec<Asset>,
18}
19
20#[derive(Debug, Default)]
21pub struct PathPaymentStrictSendOperationBuilder {
22    source_account: Option<MuxedAccount>,
23    destination: Option<MuxedAccount>,
24    send_asset: Option<Asset>,
25    send_amount: Option<Stroops>,
26    destination_asset: Option<Asset>,
27    destination_min: Option<Stroops>,
28    path: Vec<Asset>,
29}
30
31impl PathPaymentStrictSendOperation {
32    /// Retrieves the operation source account.
33    pub fn source_account(&self) -> &Option<MuxedAccount> {
34        &self.source_account
35    }
36
37    /// Retrieves a reference to the operation source account.
38    pub fn source_account_mut(&mut self) -> &mut Option<MuxedAccount> {
39        &mut self.source_account
40    }
41
42    /// Retrieves the operation destination.
43    pub fn destination(&self) -> &MuxedAccount {
44        &self.destination
45    }
46
47    /// Retrieves a mutable reference the operation destination.
48    pub fn destination_mut(&mut self) -> &mut MuxedAccount {
49        &mut self.destination
50    }
51
52    /// Retrieves the operation send asset.
53    pub fn send_asset(&self) -> &Asset {
54        &self.send_asset
55    }
56
57    /// Retrieves a mutable reference to the operation send asset.
58    pub fn send_asset_mut(&mut self) -> &mut Asset {
59        &mut self.send_asset
60    }
61
62    /// Retrieves the operation send amount.
63    pub fn send_amount(&self) -> &Stroops {
64        &self.send_amount
65    }
66
67    /// Retrieves a mutable reference to the operation send amount.
68    pub fn send_amount_mut(&mut self) -> &mut Stroops {
69        &mut self.send_amount
70    }
71
72    /// Retrieves the operation destination asset.
73    pub fn destination_asset(&self) -> &Asset {
74        &self.destination_asset
75    }
76
77    /// Retrieves a mutable reference to the operation destination asset.
78    pub fn destination_asset_mut(&mut self) -> &mut Asset {
79        &mut self.destination_asset
80    }
81
82    /// Retrieves the operation destination min.
83    pub fn destination_min(&self) -> &Stroops {
84        &self.destination_min
85    }
86
87    /// Retrieves a mutable reference to the operation destination min.
88    pub fn destination_min_mut(&mut self) -> &mut Stroops {
89        &mut self.destination_min
90    }
91
92    /// Retrieves the operation path.
93    pub fn path(&self) -> &Vec<Asset> {
94        &self.path
95    }
96
97    /// Retrieves a mutable reference to the operation path.
98    pub fn path_mut(&mut self) -> &mut Vec<Asset> {
99        &mut self.path
100    }
101
102    /// Returns to the xdr operation body.
103    pub fn to_xdr_operation_body(&self) -> Result<xdr::OperationBody> {
104        let destination = self.destination.to_xdr()?;
105        let send_asset = self.send_asset.to_xdr()?;
106        let send_amount = self.send_amount.to_xdr_int64()?;
107        let dest_asset = self.destination_asset.to_xdr()?;
108        let dest_min = self.destination_min.to_xdr_int64()?;
109        let path_res: Result<Vec<xdr::Asset>> = self.path.iter().map(|a| a.to_xdr()).collect();
110        let path = path_res?;
111        let inner = xdr::PathPaymentStrictSendOp {
112            destination,
113            send_asset,
114            send_amount,
115            dest_asset,
116            dest_min,
117            path: path.try_into().map_err(|_| Error::XdrError)?,
118        };
119        Ok(xdr::OperationBody::PathPaymentStrictSend(inner))
120    }
121
122    /// Creates from the xdr operation body.
123    pub fn from_xdr_operation_body(
124        source_account: Option<MuxedAccount>,
125        x: &xdr::PathPaymentStrictSendOp,
126    ) -> Result<PathPaymentStrictSendOperation> {
127        let destination = MuxedAccount::from_xdr(&x.destination)?;
128        let send_asset = Asset::from_xdr(&x.send_asset)?;
129        let send_amount = Stroops::from_xdr_int64(x.send_amount)?;
130        let destination_asset = Asset::from_xdr(&x.dest_asset)?;
131        let destination_min = Stroops::from_xdr_int64(x.dest_min)?;
132        let path_res: Result<Vec<Asset>> = x.path.iter().map(Asset::from_xdr).collect();
133        let path = path_res?;
134        Ok(PathPaymentStrictSendOperation {
135            source_account,
136            destination,
137            send_asset,
138            send_amount,
139            destination_asset,
140            destination_min,
141            path,
142        })
143    }
144}
145
146impl PathPaymentStrictSendOperationBuilder {
147    pub fn new() -> PathPaymentStrictSendOperationBuilder {
148        Default::default()
149    }
150
151    pub fn with_source_account<S>(mut self, source: S) -> PathPaymentStrictSendOperationBuilder
152    where
153        S: Into<MuxedAccount>,
154    {
155        self.source_account = Some(source.into());
156        self
157    }
158
159    pub fn with_destination<A>(mut self, destination: A) -> PathPaymentStrictSendOperationBuilder
160    where
161        A: Into<MuxedAccount>,
162    {
163        self.destination = Some(destination.into());
164        self
165    }
166
167    pub fn with_send_asset(mut self, send_asset: Asset) -> PathPaymentStrictSendOperationBuilder {
168        self.send_asset = Some(send_asset);
169        self
170    }
171
172    pub fn with_send_amount<A>(
173        mut self,
174        send_amount: A,
175    ) -> Result<PathPaymentStrictSendOperationBuilder>
176    where
177        A: TryInto<Stroops>,
178    {
179        self.send_amount = Some(
180            send_amount
181                .try_into()
182                .map_err(|_| Error::InvalidStroopsAmount)?,
183        );
184        Ok(self)
185    }
186
187    pub fn with_destination_asset(
188        mut self,
189        dest_asset: Asset,
190    ) -> PathPaymentStrictSendOperationBuilder {
191        self.destination_asset = Some(dest_asset);
192        self
193    }
194
195    pub fn with_destination_min<A>(
196        mut self,
197        dest_min: A,
198    ) -> Result<PathPaymentStrictSendOperationBuilder>
199    where
200        A: TryInto<Stroops>,
201    {
202        self.destination_min = Some(
203            dest_min
204                .try_into()
205                .map_err(|_| Error::InvalidStroopsAmount)?,
206        );
207        Ok(self)
208    }
209
210    pub fn add_asset(mut self, asset: Asset) -> PathPaymentStrictSendOperationBuilder {
211        self.path.push(asset);
212        self
213    }
214
215    pub fn build(self) -> Result<Operation> {
216        let destination = self
217            .destination
218            .ok_or_else(|| Error::InvalidOperation("missing payment destination".to_string()))?;
219
220        let send_asset = self.send_asset.ok_or_else(|| {
221            Error::InvalidOperation("missing path payment strict send send asset".to_string())
222        })?;
223
224        let send_amount = self.send_amount.ok_or_else(|| {
225            Error::InvalidOperation("missing path payment strict send send amount".to_string())
226        })?;
227
228        let destination_asset = self.destination_asset.ok_or_else(|| {
229            Error::InvalidOperation(
230                "missing path payment strict send destination asset".to_string(),
231            )
232        })?;
233
234        let destination_min = self.destination_min.ok_or_else(|| {
235            Error::InvalidOperation("missing path payment strict send destination min".to_string())
236        })?;
237
238        if self.path.len() > 5 {
239            return Err(Error::InvalidOperation(
240                "path payment strict send path too long".to_string(),
241            ));
242        }
243
244        Ok(Operation::PathPaymentStrictSend(
245            PathPaymentStrictSendOperation {
246                source_account: self.source_account,
247                destination,
248                send_asset,
249                send_amount,
250                destination_asset,
251                destination_min,
252                path: self.path,
253            },
254        ))
255    }
256}
257
258#[cfg(test)]
259mod tests {
260    use crate::amount::Amount;
261    use crate::asset::Asset;
262
263    use crate::network::Network;
264    use crate::operations::tests::*;
265    use crate::operations::Operation;
266    use crate::transaction::{Transaction, TransactionEnvelope, MIN_BASE_FEE};
267    use crate::xdr::{XDRDeserialize, XDRSerialize};
268    use std::str::FromStr;
269
270    #[test]
271    fn test_path_payment_strict_send() {
272        let kp = keypair0();
273        let kp1 = keypair1();
274        let kp2 = keypair2();
275        let dest = kp1.public_key();
276
277        let dest_amount = Amount::from_str("12.301").unwrap();
278        let send_amount = Amount::from_str("0.333").unwrap();
279
280        let abcd = Asset::new_credit("ABCD", kp2.public_key()).unwrap();
281        let dest_asset = Asset::new_credit("DESTASSET", kp2.public_key()).unwrap();
282
283        let op = Operation::new_path_payment_strict_send()
284            .with_destination(dest)
285            .with_send_asset(Asset::new_native())
286            .with_send_amount(send_amount)
287            .unwrap()
288            .with_destination_asset(dest_asset)
289            .with_destination_min(dest_amount)
290            .unwrap()
291            .add_asset(abcd)
292            .build()
293            .unwrap();
294        let mut tx = Transaction::builder(kp.public_key(), 3556091187167235, MIN_BASE_FEE)
295            .add_operation(op)
296            .into_transaction()
297            .unwrap();
298        tx.sign(kp.as_ref(), &Network::new_test()).unwrap();
299        let envelope = tx.to_envelope();
300        let xdr = envelope.xdr_base64().unwrap();
301        let expected = "AAAAAgAAAADg3G3hclysZlFitS+s5zWyiiJD5B0STWy5LXCj6i5yxQAAAGQADKI/AAAAAwAAAAAAAAAAAAAAAQAAAAAAAAANAAAAAAAAAAAAMs/QAAAAACXK8doPx27P6IReQlRRuweSSUiUfjqgyswxiu3Sh2R+AAAAAkRFU1RBU1NFVAAAAAAAAAB+Ecs01jX14asC1KAsPdWlpGbYCM2PEgFZCD3NLhVZmAAAAAAHVPvQAAAAAQAAAAFBQkNEAAAAAH4RyzTWNfXhqwLUoCw91aWkZtgIzY8SAVkIPc0uFVmYAAAAAAAAAAHqLnLFAAAAQKDDuyBJaD3+y98EloB5VJi1wYamH+poOoaOhxGGFcH4ZhFI04TRAY3Ahggs3bMV7pcOmw120oZ4P4vA0aFjWgk=";
302        assert_eq!(expected, xdr);
303        let back = TransactionEnvelope::from_xdr_base64(&xdr).unwrap();
304        assert_eq!(envelope, back);
305    }
306
307    #[test]
308    fn test_path_payment_strict_send_with_source_account() {
309        let kp = keypair0();
310        let kp1 = keypair1();
311        let kp2 = keypair2();
312        let dest = kp1.public_key();
313
314        let dest_amount = Amount::from_str("12.301").unwrap();
315        let send_amount = Amount::from_str("0.333").unwrap();
316
317        let abcd = Asset::new_credit("ABCD", kp2.public_key()).unwrap();
318        let dest_asset = Asset::new_credit("DESTASSET", kp2.public_key()).unwrap();
319
320        let op = Operation::new_path_payment_strict_send()
321            .with_source_account(kp1.public_key())
322            .with_destination(dest)
323            .with_send_asset(Asset::new_native())
324            .with_send_amount(send_amount)
325            .unwrap()
326            .with_destination_asset(dest_asset)
327            .with_destination_min(dest_amount)
328            .unwrap()
329            .add_asset(abcd)
330            .build()
331            .unwrap();
332        let mut tx = Transaction::builder(kp.public_key(), 3556091187167235, MIN_BASE_FEE)
333            .add_operation(op)
334            .into_transaction()
335            .unwrap();
336        tx.sign(kp.as_ref(), &Network::new_test()).unwrap();
337        let envelope = tx.to_envelope();
338        let xdr = envelope.xdr_base64().unwrap();
339        let expected = "AAAAAgAAAADg3G3hclysZlFitS+s5zWyiiJD5B0STWy5LXCj6i5yxQAAAGQADKI/AAAAAwAAAAAAAAAAAAAAAQAAAAEAAAAAJcrx2g/Hbs/ohF5CVFG7B5JJSJR+OqDKzDGK7dKHZH4AAAANAAAAAAAAAAAAMs/QAAAAACXK8doPx27P6IReQlRRuweSSUiUfjqgyswxiu3Sh2R+AAAAAkRFU1RBU1NFVAAAAAAAAAB+Ecs01jX14asC1KAsPdWlpGbYCM2PEgFZCD3NLhVZmAAAAAAHVPvQAAAAAQAAAAFBQkNEAAAAAH4RyzTWNfXhqwLUoCw91aWkZtgIzY8SAVkIPc0uFVmYAAAAAAAAAAHqLnLFAAAAQI4En43OnB/OEQ9ZAjymT8dGwnHVah2gqkq1AQuwJ89e7kVvwWPl/axspv25B0x9NnEdNZd+KKhoZfmA4B5EWwg=";
340        assert_eq!(expected, xdr);
341        let back = TransactionEnvelope::from_xdr_base64(&xdr).unwrap();
342        assert_eq!(envelope, back);
343    }
344}
stellar_base/operations/path_payment_strict_send.rs

stellar_base/operations/
path_payment_strict_send.rs
