13778844253

Committed 11 Mar 2025 02:13AM UTC coverage: 78.547% (-1.2%) from 79.713%

Build # 13778844253

Build Type

Pull #557

github

Committed by

web-flow

Commit Message

Merge d5c245853 into c127f4eaa

Pull Request Pull Request #557: feat: add consolidation input selection strategy

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15.44

/payjoin/src/receive/error.rs

use std::{error, fmt};

use crate::error_codes::{
    NOT_ENOUGH_MONEY, ORIGINAL_PSBT_REJECTED, UNAVAILABLE, VERSION_UNSUPPORTED,
};

pub type ImplementationError = Box<dyn error::Error + Send + Sync>;

/// The top-level error type for the payjoin receiver
#[derive(Debug)]
#[non_exhaustive]
pub enum Error {
    /// Errors that can be replied to the sender
    ReplyToSender(ReplyableError),
    #[cfg(feature = "v2")]
    /// V2-specific errors that are infeasable to reply to the sender
    V2(crate::receive::v2::SessionError),
}

impl From<ReplyableError> for Error {
    fn from(e: ReplyableError) -> Self { Error::ReplyToSender(e) }
}

impl fmt::Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match self {
            Error::ReplyToSender(e) => write!(f, "replyable error: {}", e),
            #[cfg(feature = "v2")]
            Error::V2(e) => write!(f, "unreplyable error: {}", e),
        }
    }
}

impl error::Error for Error {
    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
        match self {
            Error::ReplyToSender(e) => e.source(),
            #[cfg(feature = "v2")]
            Error::V2(e) => e.source(),
        }
    }
}

/// The replyable error type for the payjoin receiver, representing failures need to be
/// returned to the sender.
///
/// The error handling is designed to:
/// 1. Provide structured error responses for protocol-level failures
/// 2. Hide implementation details of external errors for security
/// 3. Support proper error propagation through the receiver stack
/// 4. Provide errors according to BIP-78 JSON error specifications for return using [`JsonError::to_json`]
#[derive(Debug)]
pub enum ReplyableError {
    /// Error arising from validation of the original PSBT payload
    Payload(PayloadError),
    /// Protocol-specific errors for BIP-78 v1 requests (e.g. HTTP request validation, parameter checks)
    #[cfg(feature = "v1")]
    V1(crate::receive::v1::RequestError),
    /// Error arising due to the specific receiver implementation
    ///
    /// e.g. database errors, network failures, wallet errors
    Implementation(ImplementationError),
}

/// A trait for errors that can be serialized to JSON in a standardized format.
///
/// The JSON output follows the structure:
/// ```json
/// {
///     "errorCode": "specific-error-code",
///     "message": "Human readable error message"
/// }
/// ```
pub trait JsonError {
    /// Converts the error into a JSON string representation.
    fn to_json(&self) -> String;
}

impl JsonError for ReplyableError {
    fn to_json(&self) -> String {
        match self {
            Self::Payload(e) => e.to_json(),
            #[cfg(feature = "v1")]
            Self::V1(e) => e.to_json(),
            Self::Implementation(_) => serialize_json_error(UNAVAILABLE, "Receiver error"),
        }
    }
}

pub(crate) fn serialize_json_error(code: &str, message: impl fmt::Display) -> String {
    format!(r#"{{ "errorCode": "{}", "message": "{}" }}"#, code, message)
}

pub(crate) fn serialize_json_plus_fields(
    code: &str,
    message: impl fmt::Display,
    additional_fields: &str,
) -> String {
    format!(r#"{{ "errorCode": "{}", "message": "{}", {} }}"#, code, message, additional_fields)
}

impl fmt::Display for ReplyableError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match &self {
            Self::Payload(e) => e.fmt(f),
            #[cfg(feature = "v1")]
            Self::V1(e) => e.fmt(f),
            Self::Implementation(e) => write!(f, "Internal Server Error: {}", e),
        }
    }
}

impl error::Error for ReplyableError {
    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
        match &self {
            Self::Payload(e) => e.source(),
            #[cfg(feature = "v1")]
            Self::V1(e) => e.source(),
            Self::Implementation(e) => Some(e.as_ref()),
        }
    }
}

impl From<InternalPayloadError> for ReplyableError {
    fn from(e: InternalPayloadError) -> Self { ReplyableError::Payload(e.into()) }
}

/// An error that occurs during validation of the original PSBT payload sent by the sender.
///
/// This type provides a public abstraction over internal validation errors while maintaining a stable public API.
/// It handles various failure modes like:
/// - Invalid UTF-8 encoding
/// - PSBT parsing errors
/// - BIP-78 specific PSBT validation failures
/// - Fee rate validation
/// - Input ownership validation
/// - Previous transaction output validation
///
/// The error messages are formatted as JSON strings suitable for HTTP responses according to the BIP-78 spec,
/// with appropriate error codes and human-readable messages.
#[derive(Debug)]
pub struct PayloadError(pub(crate) InternalPayloadError);

impl From<InternalPayloadError> for PayloadError {
    fn from(value: InternalPayloadError) -> Self { PayloadError(value) }
}

#[derive(Debug)]
pub(crate) enum InternalPayloadError {
    /// The payload is not valid utf-8
    Utf8(std::string::FromUtf8Error),
    /// The payload is not a valid PSBT
    ParsePsbt(bitcoin::psbt::PsbtParseError),
    /// Invalid sender parameters
    SenderParams(super::optional_parameters::Error),
    /// The raw PSBT fails bip78-specific validation.
    InconsistentPsbt(crate::psbt::InconsistentPsbt),
    /// The prevtxout is missing
    PrevTxOut(crate::psbt::PrevTxOutError),
    /// The Original PSBT has no output for the receiver.
    MissingPayment,
    /// The original PSBT transaction fails the broadcast check
    OriginalPsbtNotBroadcastable,
    #[allow(dead_code)]
    /// The sender is trying to spend the receiver input
    InputOwned(bitcoin::ScriptBuf),
    /// The expected input weight cannot be determined
    InputWeight(crate::psbt::InputWeightError),
    #[allow(dead_code)]
    /// Original PSBT input has been seen before. Only automatic receivers, aka "interactive" in the spec
    /// look out for these to prevent probing attacks.
    InputSeen(bitcoin::OutPoint),
    /// Original PSBT fee rate is below minimum fee rate set by the receiver.
    ///
    /// First argument is the calculated fee rate of the original PSBT.
    ///
    /// Second argument is the minimum fee rate optionally set by the receiver.
    PsbtBelowFeeRate(bitcoin::FeeRate, bitcoin::FeeRate),
    /// Effective receiver feerate exceeds maximum allowed feerate
    FeeTooHigh(bitcoin::FeeRate, bitcoin::FeeRate),
}

impl JsonError for PayloadError {
    fn to_json(&self) -> String {
        use InternalPayloadError::*;

        match &self.0 {
            Utf8(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            ParsePsbt(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            SenderParams(e) => match e {
                super::optional_parameters::Error::UnknownVersion { supported_versions } => {
                    let supported_versions_json =
                        serde_json::to_string(supported_versions).unwrap_or_default();
                    serialize_json_plus_fields(
                        VERSION_UNSUPPORTED,
                        "This version of payjoin is not supported.",
                        &format!(r#""supported": {}"#, supported_versions_json),
                    )
                }
                _ => serialize_json_error("sender-params-error", self),
            },
            InconsistentPsbt(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            PrevTxOut(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            MissingPayment => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            OriginalPsbtNotBroadcastable => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            InputOwned(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            InputWeight(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            InputSeen(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            PsbtBelowFeeRate(_, _) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),
            FeeTooHigh(_, _) => serialize_json_error(NOT_ENOUGH_MONEY, self),
        }
    }
}

impl fmt::Display for PayloadError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        use InternalPayloadError::*;

        match &self.0 {
            Utf8(e) => write!(f, "{}", e),
            ParsePsbt(e) => write!(f, "{}", e),
            SenderParams(e) => write!(f, "{}", e),
            InconsistentPsbt(e) => write!(f, "{}", e),
            PrevTxOut(e) => write!(f, "PrevTxOut Error: {}", e),
            MissingPayment => write!(f, "Missing payment."),
            OriginalPsbtNotBroadcastable => write!(f, "Can't broadcast. PSBT rejected by mempool."),
            InputOwned(_) => write!(f, "The receiver rejected the original PSBT."),
            InputWeight(e) => write!(f, "InputWeight Error: {}", e),
            InputSeen(_) => write!(f, "The receiver rejected the original PSBT."),
            PsbtBelowFeeRate(original_psbt_fee_rate, receiver_min_fee_rate) => write!(
                f,
                "Original PSBT fee rate too low: {} < {}.",
                original_psbt_fee_rate, receiver_min_fee_rate
            ),
            FeeTooHigh(proposed_fee_rate, max_fee_rate) => write!(
                f,
                "Effective receiver feerate exceeds maximum allowed feerate: {} > {}",
                proposed_fee_rate, max_fee_rate
            ),
        }
    }
}

impl std::error::Error for PayloadError {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        use InternalPayloadError::*;
        match &self.0 {
            Utf8(e) => Some(e),
            ParsePsbt(e) => Some(e),
            SenderParams(e) => Some(e),
            InconsistentPsbt(e) => Some(e),
            PrevTxOut(e) => Some(e),
            InputWeight(e) => Some(e),
            PsbtBelowFeeRate(_, _) => None,
            FeeTooHigh(_, _) => None,
            MissingPayment => None,
            OriginalPsbtNotBroadcastable => None,
            InputOwned(_) => None,
            InputSeen(_) => None,
        }
    }
}

/// Error that may occur when output substitution fails.
///
/// This is currently opaque type because we aren't sure which variants will stay.
/// You can only display it.
#[derive(Debug)]
pub struct OutputSubstitutionError(InternalOutputSubstitutionError);

#[derive(Debug)]
pub(crate) enum InternalOutputSubstitutionError {
    /// Output substitution is disabled
    OutputSubstitutionDisabled(&'static str),
    /// Current output substitution implementation doesn't support reducing the number of outputs
    NotEnoughOutputs,
    /// The provided drain script could not be identified in the provided replacement outputs
    InvalidDrainScript,
}

impl fmt::Display for OutputSubstitutionError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match &self.0 {
            InternalOutputSubstitutionError::OutputSubstitutionDisabled(reason) => write!(f, "{}", &format!("Output substitution is disabled: {}", reason)),
            InternalOutputSubstitutionError::NotEnoughOutputs => write!(
                f,
                "Current output substitution implementation doesn't support reducing the number of outputs"
            ),
            InternalOutputSubstitutionError::InvalidDrainScript =>
                write!(f, "The provided drain script could not be identified in the provided replacement outputs"),
        }
    }
}

impl From<InternalOutputSubstitutionError> for OutputSubstitutionError {
    fn from(value: InternalOutputSubstitutionError) -> Self { OutputSubstitutionError(value) }
}

impl std::error::Error for OutputSubstitutionError {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        match &self.0 {
            InternalOutputSubstitutionError::OutputSubstitutionDisabled(_) => None,
            InternalOutputSubstitutionError::NotEnoughOutputs => None,
            InternalOutputSubstitutionError::InvalidDrainScript => None,
        }
    }
}

/// Error that may occur when coin selection fails.
///
/// This is currently opaque type because we aren't sure which variants will stay.
/// You can only display it.
#[derive(Debug)]
pub struct SelectionError(InternalSelectionError);

#[derive(Debug)] 
pub(crate) enum InternalSelectionError {
    /// No candidates available for selection
    Empty,
    /// Current privacy selection implementation only supports 2-output transactions
    UnsupportedOutputLength,
    /// No selection candidates improve privacy
    NotFound,
    /// Fee rate too high for consolidation
    FeeRateTooHighForConsolidation,
}

impl fmt::Display for SelectionError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match &self.0 {
            InternalSelectionError::Empty => write!(f, "No candidates available for selection"),
            InternalSelectionError::UnsupportedOutputLength => write!(
                f,
                "Current privacy selection implementation only supports 2-output transactions"
            ),
            InternalSelectionError::NotFound => {
                write!(f, "No selection candidates improve privacy")
            }
            InternalSelectionError::FeeRateTooHighForConsolidation => {
                write!(f, "Fee rate too high for consolidation strategy")
            }
        }
    }
}

impl error::Error for SelectionError {
    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
        use InternalSelectionError::*;

        match &self.0 {
            Empty => None,
            UnsupportedOutputLength => None,
            NotFound => None,
            FeeRateTooHighForConsolidation => None,
        }
    }
}
impl From<InternalSelectionError> for SelectionError {
    fn from(value: InternalSelectionError) -> Self { SelectionError(value) }
}

/// Error that may occur when input contribution fails.
///
/// This is currently opaque type because we aren't sure which variants will stay.
/// You can only display it.
#[derive(Debug)]
pub struct InputContributionError(InternalInputContributionError);

#[derive(Debug)]
pub(crate) enum InternalInputContributionError {
    /// Total input value is not enough to cover additional output value
    ValueTooLow,
}

impl fmt::Display for InputContributionError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match &self.0 {
            InternalInputContributionError::ValueTooLow =>
                write!(f, "Total input value is not enough to cover additional output value"),
        }
    }
}

impl error::Error for InputContributionError {
    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
        match &self.0 {
            InternalInputContributionError::ValueTooLow => None,
        }
    }
}

impl From<InternalInputContributionError> for InputContributionError {
    fn from(value: InternalInputContributionError) -> Self { InputContributionError(value) }
}

1	use std::{error, fmt};
2
3	use crate::error_codes::{
4	NOT_ENOUGH_MONEY, ORIGINAL_PSBT_REJECTED, UNAVAILABLE, VERSION_UNSUPPORTED,
5	};
6
7	pub type ImplementationError = Box<dyn error::Error + Send + Sync>;
8
9	/// The top-level error type for the payjoin receiver
10	#[derive(Debug)]
11	#[non_exhaustive]
12	pub enum Error {
13	/// Errors that can be replied to the sender
14	ReplyToSender(ReplyableError),
15	#[cfg(feature = "v2")]
16	/// V2-specific errors that are infeasable to reply to the sender
17	V2(crate::receive::v2::SessionError),
18	}
19
20	impl From<ReplyableError> for Error {
21	fn from(e: ReplyableError) -> Self { Error::ReplyToSender(e) }	×
22	}
23
24	impl fmt::Display for Error {
25	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {	1✔
26	match self {	1✔
27	Error::ReplyToSender(e) => write!(f, "replyable error: {}", e),	×
28	#[cfg(feature = "v2")]
29	Error::V2(e) => write!(f, "unreplyable error: {}", e),	1✔
30	}
31	}	1✔
32	}
33
34	impl error::Error for Error {
35	fn source(&self) -> Option<&(dyn error::Error + 'static)> {	×
36	match self {	×
37	Error::ReplyToSender(e) => e.source(),	×
38	#[cfg(feature = "v2")]
39	Error::V2(e) => e.source(),	×
40	}
41	}	×
42	}
43
44	/// The replyable error type for the payjoin receiver, representing failures need to be
45	/// returned to the sender.
46	///
47	/// The error handling is designed to:
48	/// 1. Provide structured error responses for protocol-level failures
49	/// 2. Hide implementation details of external errors for security
50	/// 3. Support proper error propagation through the receiver stack
51	/// 4. Provide errors according to BIP-78 JSON error specifications for return using [`JsonError::to_json`]
52	#[derive(Debug)]
53	pub enum ReplyableError {
54	/// Error arising from validation of the original PSBT payload
55	Payload(PayloadError),
56	/// Protocol-specific errors for BIP-78 v1 requests (e.g. HTTP request validation, parameter checks)
57	#[cfg(feature = "v1")]
58	V1(crate::receive::v1::RequestError),
59	/// Error arising due to the specific receiver implementation
60	///
61	/// e.g. database errors, network failures, wallet errors
62	Implementation(ImplementationError),
63	}
64
65	/// A trait for errors that can be serialized to JSON in a standardized format.
66	///
67	/// The JSON output follows the structure:
68	/// ```json
69	/// {
70	/// "errorCode": "specific-error-code",
71	/// "message": "Human readable error message"
72	/// }
73	/// ```
74	pub trait JsonError {
75	/// Converts the error into a JSON string representation.
76	fn to_json(&self) -> String;
77	}
78
79	impl JsonError for ReplyableError {
80	fn to_json(&self) -> String {	3✔
81	match self {	3✔
82	Self::Payload(e) => e.to_json(),	1✔
83	#[cfg(feature = "v1")]
84	Self::V1(e) => e.to_json(),	×
85	Self::Implementation(_) => serialize_json_error(UNAVAILABLE, "Receiver error"),	2✔
86	}
87	}	3✔
88	}
89
90	pub(crate) fn serialize_json_error(code: &str, message: impl fmt::Display) -> String {	3✔
91	format!(r#"{{ "errorCode": "{}", "message": "{}" }}"#, code, message)	3✔
92	}	3✔
93
94	pub(crate) fn serialize_json_plus_fields(	×
95	code: &str,	×
96	message: impl fmt::Display,	×
97	additional_fields: &str,	×
98	) -> String {	×
99	format!(r#"{{ "errorCode": "{}", "message": "{}", {} }}"#, code, message, additional_fields)	×
100	}	×
101
102	impl fmt::Display for ReplyableError {
103	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {	×
104	match &self {	×
105	Self::Payload(e) => e.fmt(f),	×
106	#[cfg(feature = "v1")]
107	Self::V1(e) => e.fmt(f),	×
108	Self::Implementation(e) => write!(f, "Internal Server Error: {}", e),	×
109	}
110	}	×
111	}
112
113	impl error::Error for ReplyableError {
114	fn source(&self) -> Option<&(dyn error::Error + 'static)> {	×
115	match &self {	×
116	Self::Payload(e) => e.source(),	×
117	#[cfg(feature = "v1")]
118	Self::V1(e) => e.source(),	×
119	Self::Implementation(e) => Some(e.as_ref()),	×
120	}
121	}	×
122	}
123
124	impl From<InternalPayloadError> for ReplyableError {
125	fn from(e: InternalPayloadError) -> Self { ReplyableError::Payload(e.into()) }	1✔
126	}
127
128	/// An error that occurs during validation of the original PSBT payload sent by the sender.
129	///
130	/// This type provides a public abstraction over internal validation errors while maintaining a stable public API.
131	/// It handles various failure modes like:
132	/// - Invalid UTF-8 encoding
133	/// - PSBT parsing errors
134	/// - BIP-78 specific PSBT validation failures
135	/// - Fee rate validation
136	/// - Input ownership validation
137	/// - Previous transaction output validation
138	///
139	/// The error messages are formatted as JSON strings suitable for HTTP responses according to the BIP-78 spec,
140	/// with appropriate error codes and human-readable messages.
141	#[derive(Debug)]
142	pub struct PayloadError(pub(crate) InternalPayloadError);
143
144	impl From<InternalPayloadError> for PayloadError {
145	fn from(value: InternalPayloadError) -> Self { PayloadError(value) }	1✔
146	}
147
148	#[derive(Debug)]
149	pub(crate) enum InternalPayloadError {
150	/// The payload is not valid utf-8
151	Utf8(std::string::FromUtf8Error),
152	/// The payload is not a valid PSBT
153	ParsePsbt(bitcoin::psbt::PsbtParseError),
154	/// Invalid sender parameters
155	SenderParams(super::optional_parameters::Error),
156	/// The raw PSBT fails bip78-specific validation.
157	InconsistentPsbt(crate::psbt::InconsistentPsbt),
158	/// The prevtxout is missing
159	PrevTxOut(crate::psbt::PrevTxOutError),
160	/// The Original PSBT has no output for the receiver.
161	MissingPayment,
162	/// The original PSBT transaction fails the broadcast check
163	OriginalPsbtNotBroadcastable,
164	#[allow(dead_code)]
165	/// The sender is trying to spend the receiver input
166	InputOwned(bitcoin::ScriptBuf),
167	/// The expected input weight cannot be determined
168	InputWeight(crate::psbt::InputWeightError),
169	#[allow(dead_code)]
170	/// Original PSBT input has been seen before. Only automatic receivers, aka "interactive" in the spec
171	/// look out for these to prevent probing attacks.
172	InputSeen(bitcoin::OutPoint),
173	/// Original PSBT fee rate is below minimum fee rate set by the receiver.
174	///
175	/// First argument is the calculated fee rate of the original PSBT.
176	///
177	/// Second argument is the minimum fee rate optionally set by the receiver.
178	PsbtBelowFeeRate(bitcoin::FeeRate, bitcoin::FeeRate),
179	/// Effective receiver feerate exceeds maximum allowed feerate
180	FeeTooHigh(bitcoin::FeeRate, bitcoin::FeeRate),
181	}
182
183	impl JsonError for PayloadError {
184	fn to_json(&self) -> String {	1✔
185	use InternalPayloadError::*;
186
187	match &self.0 {	1✔
188	Utf8(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
189	ParsePsbt(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
190	SenderParams(e) => match e {	×
191	super::optional_parameters::Error::UnknownVersion { supported_versions } => {	×
192	let supported_versions_json =	×
193	serde_json::to_string(supported_versions).unwrap_or_default();	×
194	serialize_json_plus_fields(	×
195	VERSION_UNSUPPORTED,	×
196	"This version of payjoin is not supported.",	×
197	&format!(r#""supported": {}"#, supported_versions_json),	×
198	)	×
199	}
200	_ => serialize_json_error("sender-params-error", self),	×
201	},
202	InconsistentPsbt(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
203	PrevTxOut(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
204	MissingPayment => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	1✔
205	OriginalPsbtNotBroadcastable => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
206	InputOwned(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
207	InputWeight(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
208	InputSeen(_) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
209	PsbtBelowFeeRate(_, _) => serialize_json_error(ORIGINAL_PSBT_REJECTED, self),	×
210	FeeTooHigh(_, _) => serialize_json_error(NOT_ENOUGH_MONEY, self),	×
211	}
212	}	1✔
213	}
214
215	impl fmt::Display for PayloadError {
216	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {	1✔
217	use InternalPayloadError::*;
218
219	match &self.0 {	1✔
220	Utf8(e) => write!(f, "{}", e),	×
221	ParsePsbt(e) => write!(f, "{}", e),	×
222	SenderParams(e) => write!(f, "{}", e),	×
223	InconsistentPsbt(e) => write!(f, "{}", e),	×
224	PrevTxOut(e) => write!(f, "PrevTxOut Error: {}", e),	×
225	MissingPayment => write!(f, "Missing payment."),	1✔
226	OriginalPsbtNotBroadcastable => write!(f, "Can't broadcast. PSBT rejected by mempool."),	×
227	InputOwned(_) => write!(f, "The receiver rejected the original PSBT."),	×
228	InputWeight(e) => write!(f, "InputWeight Error: {}", e),	×
229	InputSeen(_) => write!(f, "The receiver rejected the original PSBT."),	×
230	PsbtBelowFeeRate(original_psbt_fee_rate, receiver_min_fee_rate) => write!(	×
231	f,	×
232	"Original PSBT fee rate too low: {} < {}.",	×
233	original_psbt_fee_rate, receiver_min_fee_rate	×
234	),	×
235	FeeTooHigh(proposed_fee_rate, max_fee_rate) => write!(	×
236	f,	×
237	"Effective receiver feerate exceeds maximum allowed feerate: {} > {}",	×
238	proposed_fee_rate, max_fee_rate	×
239	),	×
240	}
241	}	1✔
242	}
243
244	impl std::error::Error for PayloadError {
245	fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {	×
246	use InternalPayloadError::*;
247	match &self.0 {	×
248	Utf8(e) => Some(e),	×
249	ParsePsbt(e) => Some(e),	×
250	SenderParams(e) => Some(e),	×
251	InconsistentPsbt(e) => Some(e),	×
252	PrevTxOut(e) => Some(e),	×
253	InputWeight(e) => Some(e),	×
254	PsbtBelowFeeRate(_, _) => None,	×
255	FeeTooHigh(_, _) => None,	×
256	MissingPayment => None,	×
257	OriginalPsbtNotBroadcastable => None,	×
258	InputOwned(_) => None,	×
259	InputSeen(_) => None,	×
260	}
261	}	×
262	}
263
264	/// Error that may occur when output substitution fails.
265	///
266	/// This is currently opaque type because we aren't sure which variants will stay.
267	/// You can only display it.
268	#[derive(Debug)]
269	pub struct OutputSubstitutionError(InternalOutputSubstitutionError);
270
271	#[derive(Debug)]
272	pub(crate) enum InternalOutputSubstitutionError {
273	/// Output substitution is disabled
274	OutputSubstitutionDisabled(&'static str),
275	/// Current output substitution implementation doesn't support reducing the number of outputs
276	NotEnoughOutputs,
277	/// The provided drain script could not be identified in the provided replacement outputs
278	InvalidDrainScript,
279	}
280
281	impl fmt::Display for OutputSubstitutionError {
282	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {	×
283	match &self.0 {	×
284	InternalOutputSubstitutionError::OutputSubstitutionDisabled(reason) => write!(f, "{}", &format!("Output substitution is disabled: {}", reason)),	×
285	InternalOutputSubstitutionError::NotEnoughOutputs => write!(	×
286	f,	×
287	"Current output substitution implementation doesn't support reducing the number of outputs"	×
288	),	×
289	InternalOutputSubstitutionError::InvalidDrainScript =>
290	write!(f, "The provided drain script could not be identified in the provided replacement outputs"),	×
291	}
292	}	×
293	}
294
295	impl From<InternalOutputSubstitutionError> for OutputSubstitutionError {
296	fn from(value: InternalOutputSubstitutionError) -> Self { OutputSubstitutionError(value) }	×
297	}
298
299	impl std::error::Error for OutputSubstitutionError {
300	fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {	×
301	match &self.0 {	×
302	InternalOutputSubstitutionError::OutputSubstitutionDisabled(_) => None,	×
303	InternalOutputSubstitutionError::NotEnoughOutputs => None,	×
304	InternalOutputSubstitutionError::InvalidDrainScript => None,	×
305	}
306	}	×
307	}
308
309	/// Error that may occur when coin selection fails.
310	///
311	/// This is currently opaque type because we aren't sure which variants will stay.
312	/// You can only display it.
313	#[derive(Debug)]
314	pub struct SelectionError(InternalSelectionError);
315
316	#[derive(Debug)]
317	pub(crate) enum InternalSelectionError {
318	/// No candidates available for selection
319	Empty,
320	/// Current privacy selection implementation only supports 2-output transactions
321	UnsupportedOutputLength,
322	/// No selection candidates improve privacy
323	NotFound,
324	/// Fee rate too high for consolidation
325	FeeRateTooHighForConsolidation,
326	}
327
328	impl fmt::Display for SelectionError {
329	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {	×
330	match &self.0 {	×
331	InternalSelectionError::Empty => write!(f, "No candidates available for selection"),	×
332	InternalSelectionError::UnsupportedOutputLength => write!(	×
333	f,	×
334	"Current privacy selection implementation only supports 2-output transactions"	×
335	),	×
336	InternalSelectionError::NotFound => {
NEW 337	write!(f, "No selection candidates improve privacy")	×
338	}
339	InternalSelectionError::FeeRateTooHighForConsolidation => {
NEW 340	write!(f, "Fee rate too high for consolidation strategy")	×
341	}
342	}
343	}	×
344	}
345
346	impl error::Error for SelectionError {
347	fn source(&self) -> Option<&(dyn error::Error + 'static)> {	×
348	use InternalSelectionError::*;
349
350	match &self.0 {	×
351	Empty => None,	×
352	UnsupportedOutputLength => None,	×
353	NotFound => None,	×
NEW 354	FeeRateTooHighForConsolidation => None,	×
355	}
356	}	×
357	}
358	impl From<InternalSelectionError> for SelectionError {
359	fn from(value: InternalSelectionError) -> Self { SelectionError(value) }	2✔
360	}
361
362	/// Error that may occur when input contribution fails.
363	///
364	/// This is currently opaque type because we aren't sure which variants will stay.
365	/// You can only display it.
366	#[derive(Debug)]
367	pub struct InputContributionError(InternalInputContributionError);
368
369	#[derive(Debug)]
370	pub(crate) enum InternalInputContributionError {
371	/// Total input value is not enough to cover additional output value
372	ValueTooLow,
373	}
374
375	impl fmt::Display for InputContributionError {
376	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {	×
377	match &self.0 {	×
378	InternalInputContributionError::ValueTooLow =>	×
379	write!(f, "Total input value is not enough to cover additional output value"),	×
380	}	×
381	}	×
382	}
383
384	impl error::Error for InputContributionError {
385	fn source(&self) -> Option<&(dyn error::Error + 'static)> {	×
386	match &self.0 {	×
387	InternalInputContributionError::ValueTooLow => None,	×
388	}	×
389	}	×
390	}
391
392	impl From<InternalInputContributionError> for InputContributionError {
393	fn from(value: InternalInputContributionError) -> Self { InputContributionError(value) }	×
394	}

payjoin / rust-payjoin / 13778844253

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