trust-tasks-rs 0.36.0

Reference Rust library for the Trust Tasks framework — transport-agnostic, JSON-based descriptions of verifiable work between parties.
//! Generated by `trust-tasks-codegen` — do not edit by hand.
//!
//! Spec slug: `task-consent/granted`. Version: `0.1`.
/// Why this specification version is deprecated (SPEC "Superseded and
/// Withdrawn Versions"), or `None` while it is current.
pub const DEPRECATION: Option<&str> = None;
#[allow(unused_imports)]
use serde::{Deserialize, Serialize};
/// Error types.
pub mod error {
    /// Error from a `TryFrom` or `FromStr` implementation.
    pub struct ConversionError(::std::borrow::Cow<'static, str>);
    impl ::std::error::Error for ConversionError {}
    impl ::std::fmt::Display for ConversionError {
        fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> Result<(), ::std::fmt::Error> {
            ::std::fmt::Display::fmt(&self.0, f)
        }
    }
    impl ::std::fmt::Debug for ConversionError {
        fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> Result<(), ::std::fmt::Error> {
            ::std::fmt::Debug::fmt(&self.0, f)
        }
    }
    impl From<&'static str> for ConversionError {
        fn from(value: &'static str) -> Self {
            Self(value.into())
        }
    }
    impl From<String> for ConversionError {
        fn from(value: String) -> Self {
            Self(value.into())
        }
    }
}
/**
A cryptographic digest as a multibase-encoded multihash — the encoding the W3C Verifiable Credentials Data Model 2.0 defines for `digestMultibase`, and the one `did:webvh` uses for its SCID and entry hashes.

Multihash carries the hash algorithm in-band, so the value is self-describing and the wire format survives an algorithm change without a schema revision; multibase does the same for the base encoding, so a verifier never infers base58 from base64url by context. A bare hex string or a `sha-256:`-style prefix hard-codes one algorithm into the wire contract and is non-conforming here.

This definition constrains the *encoding only*. What the digest is computed over is stated by each referencing field, because it differs legitimately: a digest over a JSON document is taken over its RFC 8785 (JCS) canonicalization, while a digest over an opaque artifact is taken over its bytes. A field whose input is a JSON document and which does not name a canonicalization is not reproducible.

Restricted to the two multibase headers W3C Controlled Identifiers 1.0 §2.4 normatively requires — `z` (base58btc) and `u` (base64url-no-pad). CID permits others but states that "interoperability is not guaranteed between implementations using such values", and a registry whose purpose is interoperability should not mint digests a conforming verifier may be unable to read. The alphabets are enforced rather than assumed: base58btc excludes 0, O, I and l, and an earlier permissive pattern let three published examples carry digests that were not valid base58 at all. base58btc is RECOMMENDED, for consistency with `did:key` and `did:webvh`.*/
///
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct DigestMultibase(::std::string::String);
impl ::std::ops::Deref for DigestMultibase {
    type Target = ::std::string::String;
    fn deref(&self) -> &::std::string::String {
        &self.0
    }
}
impl ::std::convert::From<DigestMultibase> for ::std::string::String {
    fn from(value: DigestMultibase) -> Self {
        value.0
    }
}
impl ::std::str::FromStr for DigestMultibase {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        if value.chars().count() < 16usize {
            return Err("shorter than 16 characters".into());
        }
        static PATTERN: ::std::sync::LazyLock<::regress::Regex> =
            ::std::sync::LazyLock::new(|| {
                ::regress::Regex::new("^(z[1-9A-HJ-NP-Za-km-z]+|u[A-Za-z0-9_-]+)$").unwrap()
            });
        if PATTERN.find(value).is_none() {
            return Err(
                "doesn't match pattern \"^(z[1-9A-HJ-NP-Za-km-z]+|u[A-Za-z0-9_-]+)$\"".into(),
            );
        }
        Ok(Self(value.to_string()))
    }
}
impl ::std::convert::TryFrom<&str> for DigestMultibase {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for DigestMultibase {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for DigestMultibase {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl<'de> ::serde::Deserialize<'de> for DigestMultibase {
    fn deserialize<D>(deserializer: D) -> ::std::result::Result<Self, D::Error>
    where
        D: ::serde::Deserializer<'de>,
    {
        ::std::string::String::deserialize(deserializer)?
            .parse()
            .map_err(|e: self::error::ConversionError| {
                <D::Error as ::serde::de::Error>::custom(e.to_string())
            })
    }
}
///Vendor-namespaced extension object per SPEC.md §4.5.1. Each immediate key MUST be a reverse-DNS namespace; structure under each namespace is opaque to the framework.
///
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(transparent)]
pub struct Ext(pub ::std::collections::HashMap<ExtKey, ::serde_json::Value>);
impl ::std::ops::Deref for Ext {
    type Target = ::std::collections::HashMap<ExtKey, ::serde_json::Value>;
    fn deref(&self) -> &::std::collections::HashMap<ExtKey, ::serde_json::Value> {
        &self.0
    }
}
impl ::std::convert::From<Ext> for ::std::collections::HashMap<ExtKey, ::serde_json::Value> {
    fn from(value: Ext) -> Self {
        value.0
    }
}
impl ::std::convert::From<::std::collections::HashMap<ExtKey, ::serde_json::Value>> for Ext {
    fn from(value: ::std::collections::HashMap<ExtKey, ::serde_json::Value>) -> Self {
        Self(value)
    }
}
///`ExtKey`
///
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct ExtKey(::std::string::String);
impl ::std::ops::Deref for ExtKey {
    type Target = ::std::string::String;
    fn deref(&self) -> &::std::string::String {
        &self.0
    }
}
impl ::std::convert::From<ExtKey> for ::std::string::String {
    fn from(value: ExtKey) -> Self {
        value.0
    }
}
impl ::std::str::FromStr for ExtKey {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        static PATTERN: ::std::sync::LazyLock<::regress::Regex> =
            ::std::sync::LazyLock::new(|| {
                ::regress::Regex::new("^[a-z][a-z0-9-]*(\\.[a-z0-9-]+)+$").unwrap()
            });
        if PATTERN.find(value).is_none() {
            return Err("doesn't match pattern \"^[a-z][a-z0-9-]*(\\.[a-z0-9-]+)+$\"".into());
        }
        Ok(Self(value.to_string()))
    }
}
impl ::std::convert::TryFrom<&str> for ExtKey {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for ExtKey {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for ExtKey {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl<'de> ::serde::Deserialize<'de> for ExtKey {
    fn deserialize<D>(deserializer: D) -> ::std::result::Result<Self, D::Error>
    where
        D: ::serde::Deserializer<'de>,
    {
        ::std::string::String::deserialize(deserializer)?
            .parse()
            .map_err(|e: self::error::ConversionError| {
                <D::Error as ::serde::de::Error>::custom(e.to_string())
            })
    }
}
///Fire-and-forget notice from the executor to the requester that its pending task has reached the approval threshold and a single-use grant is waiting, so the requester re-submits at once instead of polling. Non-load-bearing by design: the grant check at re-submit is the real gate, so a lost or spurious notice costs at most one poll cycle.
///
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(deny_unknown_fields)]
#[non_exhaustive]
pub struct Payload {
    #[serde(default, skip_serializing_if = "::std::option::Option::is_none")]
    pub ext: ::std::option::Option<Ext>,
    ///The salted wire digest of the approved task — the same value the matching task-consent/request carried and the decision echoed. The requester already holds it; it is repeated here only so the requester can correlate the notice to the pending task it should now re-submit. It confers nothing: the executor's single-use grant lookup at re-submit is the authorization.
    #[serde(rename = "payloadDigest")]
    pub payload_digest: DigestMultibase,
    ///Always `granted`. A denial sends no notice — the requester's re-submit discovers it, and a notice that could carry a denial would tempt a consumer into treating this advisory channel as the authoritative outcome, which it is not.
    pub status: PayloadStatus,
    ///Type URI of the approved task, for correlation and display at the requester. Advisory on the same terms as the digest — the executor re-derives everything it enforces from the re-submitted payload itself.
    #[serde(rename = "taskType")]
    pub task_type: ::std::string::String,
}
impl Payload {
    pub fn builder() -> builder::Payload {
        Default::default()
    }
}
///Always `granted`. A denial sends no notice — the requester's re-submit discovers it, and a notice that could carry a denial would tempt a consumer into treating this advisory channel as the authoritative outcome, which it is not.
///
#[derive(
    ::serde::Deserialize,
    ::serde::Serialize,
    Clone,
    Copy,
    Debug,
    Eq,
    Hash,
    Ord,
    PartialEq,
    PartialOrd,
)]
#[non_exhaustive]
pub enum PayloadStatus {
    #[serde(rename = "granted")]
    Granted,
}
impl ::std::fmt::Display for PayloadStatus {
    fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
        match *self {
            Self::Granted => f.write_str("granted"),
        }
    }
}
impl ::std::str::FromStr for PayloadStatus {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        match value {
            "granted" => Ok(Self::Granted),
            _ => Err("invalid value".into()),
        }
    }
}
impl ::std::convert::TryFrom<&str> for PayloadStatus {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for PayloadStatus {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for PayloadStatus {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
/// Types for composing complex structures.
pub mod builder {
    #[derive(Clone, Debug)]
    pub struct Payload {
        ext: ::std::result::Result<::std::option::Option<super::Ext>, ::std::string::String>,
        payload_digest: ::std::result::Result<super::DigestMultibase, ::std::string::String>,
        status: ::std::result::Result<super::PayloadStatus, ::std::string::String>,
        task_type: ::std::result::Result<::std::string::String, ::std::string::String>,
    }
    impl ::std::default::Default for Payload {
        fn default() -> Self {
            Self {
                ext: Ok(Default::default()),
                payload_digest: Err("no value supplied for payload_digest".to_string()),
                status: Err("no value supplied for status".to_string()),
                task_type: Err("no value supplied for task_type".to_string()),
            }
        }
    }
    impl Payload {
        pub fn ext<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::option::Option<super::Ext>>,
            T::Error: ::std::fmt::Display,
        {
            self.ext = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for ext: {e}"));
            self
        }
        pub fn payload_digest<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<super::DigestMultibase>,
            T::Error: ::std::fmt::Display,
        {
            self.payload_digest = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for payload_digest: {e}"));
            self
        }
        pub fn status<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<super::PayloadStatus>,
            T::Error: ::std::fmt::Display,
        {
            self.status = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for status: {e}"));
            self
        }
        pub fn task_type<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::string::String>,
            T::Error: ::std::fmt::Display,
        {
            self.task_type = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for task_type: {e}"));
            self
        }
    }
    impl ::std::convert::TryFrom<Payload> for super::Payload {
        type Error = super::error::ConversionError;
        fn try_from(value: Payload) -> ::std::result::Result<Self, super::error::ConversionError> {
            Ok(Self {
                ext: value.ext?,
                payload_digest: value.payload_digest?,
                status: value.status?,
                task_type: value.task_type?,
            })
        }
    }
    impl ::std::convert::From<super::Payload> for Payload {
        fn from(value: super::Payload) -> Self {
            Self {
                ext: Ok(value.ext),
                payload_digest: Ok(value.payload_digest),
                status: Ok(value.status),
                task_type: Ok(value.task_type),
            }
        }
    }
}
impl crate::Payload for Payload {
    const TYPE_URI: &'static str = "https://trusttasks.org/spec/task-consent/granted/0.1";
    const IS_RECIPIENT_REQUIRED: bool = true;
    const PAYLOAD_SCHEMA: Option<&'static str> = Some(
        "{\"$defs\":{\"DigestMultibase\":{\"description\":\"A cryptographic digest as a multibase-encoded multihash — the encoding the W3C Verifiable Credentials Data Model 2.0 defines for `digestMultibase`, and the one `did:webvh` uses for its SCID and entry hashes.\\n\\nMultihash carries the hash algorithm in-band, so the value is self-describing and the wire format survives an algorithm change without a schema revision; multibase does the same for the base encoding, so a verifier never infers base58 from base64url by context. A bare hex string or a `sha-256:`-style prefix hard-codes one algorithm into the wire contract and is non-conforming here.\\n\\nThis definition constrains the *encoding only*. What the digest is computed over is stated by each referencing field, because it differs legitimately: a digest over a JSON document is taken over its RFC 8785 (JCS) canonicalization, while a digest over an opaque artifact is taken over its bytes. A field whose input is a JSON document and which does not name a canonicalization is not reproducible.\\n\\nRestricted to the two multibase headers W3C Controlled Identifiers 1.0 §2.4 normatively requires — `z` (base58btc) and `u` (base64url-no-pad). CID permits others but states that \\\"interoperability is not guaranteed between implementations using such values\\\", and a registry whose purpose is interoperability should not mint digests a conforming verifier may be unable to read. The alphabets are enforced rather than assumed: base58btc excludes 0, O, I and l, and an earlier permissive pattern let three published examples carry digests that were not valid base58 at all. base58btc is RECOMMENDED, for consistency with `did:key` and `did:webvh`.\",\"examples\":[\"zQmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMnR\"],\"minLength\":16,\"pattern\":\"^(z[1-9A-HJ-NP-Za-km-z]+|u[A-Za-z0-9_-]+)$\",\"title\":\"DigestMultibase\",\"type\":\"string\"},\"Ext\":{\"additionalProperties\":true,\"description\":\"Vendor-namespaced extension object per SPEC.md §4.5.1. Each immediate key MUST be a reverse-DNS namespace; structure under each namespace is opaque to the framework.\",\"minProperties\":1,\"propertyNames\":{\"pattern\":\"^[a-z][a-z0-9-]*(\\\\.[a-z0-9-]+)+$\"},\"title\":\"Ext\",\"type\":\"object\"}},\"$id\":\"https://trusttasks.org/spec/task-consent/granted/0.1\",\"$schema\":\"https://json-schema.org/draft/2020-12/schema\",\"additionalProperties\":false,\"description\":\"Fire-and-forget notice from the executor to the requester that its pending task has reached the approval threshold and a single-use grant is waiting, so the requester re-submits at once instead of polling. Non-load-bearing by design: the grant check at re-submit is the real gate, so a lost or spurious notice costs at most one poll cycle.\",\"properties\":{\"ext\":{\"$ref\":\"#/$defs/Ext\"},\"payloadDigest\":{\"$ref\":\"#/$defs/DigestMultibase\",\"description\":\"The salted wire digest of the approved task — the same value the matching task-consent/request carried and the decision echoed. The requester already holds it; it is repeated here only so the requester can correlate the notice to the pending task it should now re-submit. It confers nothing: the executor's single-use grant lookup at re-submit is the authorization.\"},\"status\":{\"description\":\"Always `granted`. A denial sends no notice — the requester's re-submit discovers it, and a notice that could carry a denial would tempt a consumer into treating this advisory channel as the authoritative outcome, which it is not.\",\"enum\":[\"granted\"],\"type\":\"string\"},\"taskType\":{\"description\":\"Type URI of the approved task, for correlation and display at the requester. Advisory on the same terms as the digest — the executor re-derives everything it enforces from the re-submitted payload itself.\",\"format\":\"uri\",\"type\":\"string\"}},\"required\":[\"status\",\"payloadDigest\",\"taskType\"],\"title\":\"Task Consent Granted — payload\",\"type\":\"object\"}\n",
    );
}
/// The earlier `MAJOR.MINOR` of this slug that this version declares it
/// extends (front matter `extends`, SPEC §5.2 "Declared extension"), or
/// `None`. Only the direct declaration; walk a chain with
/// [`crate::extension::extends_for`].
pub const EXTENDS: Option<&str> = None;
/// The extended error codes this specification declares (SPEC §7.3 item 9,
/// §8.5), in declaration order. Empty when it declares none.
pub const ERROR_CODES: &[crate::DeclaredErrorCode] = &[];