//! Generated by `trust-tasks-codegen` — do not edit by hand.
//!
//! Spec slug: `credential-exchange/query`. Version: `0.1`.
#[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())
}
}
}
///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.
///
/// <details><summary>JSON schema</summary>
///
/// ```json
///{
/// "title": "Ext",
/// "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.",
/// "type": "object",
/// "minProperties": 1,
/// "additionalProperties": true,
/// "propertyNames": {
/// "pattern": "^[a-z][a-z0-9-]*(\\.[a-z0-9-]+)+$"
/// }
///}
/// ```
/// </details>
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(transparent)]
pub struct Ext(pub ::std::collections::HashMap<ExtKey, ::serde_json::Value>);
impl ::std::ops::Deref for Ext {
type Target = ::std::collections::HashMap<ExtKey, ::serde_json::Value>;
fn deref(&self) -> &::std::collections::HashMap<ExtKey, ::serde_json::Value> {
&self.0
}
}
impl ::std::convert::From<Ext> for ::std::collections::HashMap<ExtKey, ::serde_json::Value> {
fn from(value: Ext) -> Self {
value.0
}
}
impl ::std::convert::From<::std::collections::HashMap<ExtKey, ::serde_json::Value>> for Ext {
fn from(value: ::std::collections::HashMap<ExtKey, ::serde_json::Value>) -> Self {
Self(value)
}
}
///`ExtKey`
///
/// <details><summary>JSON schema</summary>
///
/// ```json
///{
/// "type": "string",
/// "pattern": "^[a-z][a-z0-9-]*(\\.[a-z0-9-]+)+$"
///}
/// ```
/// </details>
#[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())
})
}
}
///Verifier to holder: an OID4VP DCQL query, a freshness nonce, and a mandatory stated purpose. The holder answers with credential-exchange/present, or defers for consent.
///
/// <details><summary>JSON schema</summary>
///
/// ```json
///{
/// "$id": "https://trusttasks.org/spec/credential-exchange/query/0.1",
/// "title": "Payload",
/// "description": "Verifier to holder: an OID4VP DCQL query, a freshness nonce, and a mandatory stated purpose. The holder answers with credential-exchange/present, or defers for consent.",
/// "type": "object",
/// "required": [
/// "dcql_query",
/// "nonce",
/// "purpose"
/// ],
/// "properties": {
/// "dcql_query": {
/// "description": "An OID4VP DCQL query object, carried verbatim: per-credential `format` selector, `meta` type discriminator (`vct_values` for SD-JWT-VC, `type_values` for W3C), and requested `claims`. Defined by OpenID for Verifiable Presentations and not re-specified here. snake_case member names are DCQL's own.",
/// "type": "object"
/// },
/// "ext": {
/// "$ref": "#/definitions/Ext"
/// },
/// "nonce": {
/// "description": "Verifier freshness value, bound into the resulting presentation so it cannot be replayed to another verifier or at another time.",
/// "type": "string",
/// "minLength": 1
/// },
/// "purpose": {
/// "description": "The verifier's stated reason for asking, shown to the holder. REQUIRED and never empty: purpose binding means a verifier cannot ask for a credential without saying why, and a holder cannot be asked to consent to an unstated use.",
/// "type": "string",
/// "maxLength": 500,
/// "minLength": 1
/// }
/// },
/// "additionalProperties": false
///}
/// ```
/// </details>
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(deny_unknown_fields)]
#[non_exhaustive]
pub struct Payload {
///An OID4VP DCQL query object, carried verbatim: per-credential `format` selector, `meta` type discriminator (`vct_values` for SD-JWT-VC, `type_values` for W3C), and requested `claims`. Defined by OpenID for Verifiable Presentations and not re-specified here. snake_case member names are DCQL's own.
pub dcql_query: ::serde_json::Map<::std::string::String, ::serde_json::Value>,
#[serde(default, skip_serializing_if = "::std::option::Option::is_none")]
pub ext: ::std::option::Option<Ext>,
///Verifier freshness value, bound into the resulting presentation so it cannot be replayed to another verifier or at another time.
pub nonce: PayloadNonce,
///The verifier's stated reason for asking, shown to the holder. REQUIRED and never empty: purpose binding means a verifier cannot ask for a credential without saying why, and a holder cannot be asked to consent to an unstated use.
pub purpose: PayloadPurpose,
}
impl Payload {
pub fn builder() -> builder::Payload {
Default::default()
}
}
///Verifier freshness value, bound into the resulting presentation so it cannot be replayed to another verifier or at another time.
///
/// <details><summary>JSON schema</summary>
///
/// ```json
///{
/// "description": "Verifier freshness value, bound into the resulting presentation so it cannot be replayed to another verifier or at another time.",
/// "type": "string",
/// "minLength": 1
///}
/// ```
/// </details>
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct PayloadNonce(::std::string::String);
impl ::std::ops::Deref for PayloadNonce {
type Target = ::std::string::String;
fn deref(&self) -> &::std::string::String {
&self.0
}
}
impl ::std::convert::From<PayloadNonce> for ::std::string::String {
fn from(value: PayloadNonce) -> Self {
value.0
}
}
impl ::std::str::FromStr for PayloadNonce {
type Err = self::error::ConversionError;
fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
if value.chars().count() < 1usize {
return Err("shorter than 1 characters".into());
}
Ok(Self(value.to_string()))
}
}
impl ::std::convert::TryFrom<&str> for PayloadNonce {
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 PayloadNonce {
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 PayloadNonce {
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 PayloadNonce {
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())
})
}
}
///The verifier's stated reason for asking, shown to the holder. REQUIRED and never empty: purpose binding means a verifier cannot ask for a credential without saying why, and a holder cannot be asked to consent to an unstated use.
///
/// <details><summary>JSON schema</summary>
///
/// ```json
///{
/// "description": "The verifier's stated reason for asking, shown to the holder. REQUIRED and never empty: purpose binding means a verifier cannot ask for a credential without saying why, and a holder cannot be asked to consent to an unstated use.",
/// "type": "string",
/// "maxLength": 500,
/// "minLength": 1
///}
/// ```
/// </details>
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct PayloadPurpose(::std::string::String);
impl ::std::ops::Deref for PayloadPurpose {
type Target = ::std::string::String;
fn deref(&self) -> &::std::string::String {
&self.0
}
}
impl ::std::convert::From<PayloadPurpose> for ::std::string::String {
fn from(value: PayloadPurpose) -> Self {
value.0
}
}
impl ::std::str::FromStr for PayloadPurpose {
type Err = self::error::ConversionError;
fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
if value.chars().count() > 500usize {
return Err("longer than 500 characters".into());
}
if value.chars().count() < 1usize {
return Err("shorter than 1 characters".into());
}
Ok(Self(value.to_string()))
}
}
impl ::std::convert::TryFrom<&str> for PayloadPurpose {
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 PayloadPurpose {
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 PayloadPurpose {
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 PayloadPurpose {
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())
})
}
}
/// Types for composing complex structures.
pub mod builder {
#[derive(Clone, Debug)]
pub struct Payload {
dcql_query: ::std::result::Result<
::serde_json::Map<::std::string::String, ::serde_json::Value>,
::std::string::String,
>,
ext: ::std::result::Result<::std::option::Option<super::Ext>, ::std::string::String>,
nonce: ::std::result::Result<super::PayloadNonce, ::std::string::String>,
purpose: ::std::result::Result<super::PayloadPurpose, ::std::string::String>,
}
impl ::std::default::Default for Payload {
fn default() -> Self {
Self {
dcql_query: Err("no value supplied for dcql_query".to_string()),
ext: Ok(Default::default()),
nonce: Err("no value supplied for nonce".to_string()),
purpose: Err("no value supplied for purpose".to_string()),
}
}
}
impl Payload {
pub fn dcql_query<T>(mut self, value: T) -> Self
where
T: ::std::convert::TryInto<
::serde_json::Map<::std::string::String, ::serde_json::Value>,
>,
T::Error: ::std::fmt::Display,
{
self.dcql_query = value
.try_into()
.map_err(|e| format!("error converting supplied value for dcql_query: {e}"));
self
}
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 nonce<T>(mut self, value: T) -> Self
where
T: ::std::convert::TryInto<super::PayloadNonce>,
T::Error: ::std::fmt::Display,
{
self.nonce = value
.try_into()
.map_err(|e| format!("error converting supplied value for nonce: {e}"));
self
}
pub fn purpose<T>(mut self, value: T) -> Self
where
T: ::std::convert::TryInto<super::PayloadPurpose>,
T::Error: ::std::fmt::Display,
{
self.purpose = value
.try_into()
.map_err(|e| format!("error converting supplied value for purpose: {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 {
dcql_query: value.dcql_query?,
ext: value.ext?,
nonce: value.nonce?,
purpose: value.purpose?,
})
}
}
impl ::std::convert::From<super::Payload> for Payload {
fn from(value: super::Payload) -> Self {
Self {
dcql_query: Ok(value.dcql_query),
ext: Ok(value.ext),
nonce: Ok(value.nonce),
purpose: Ok(value.purpose),
}
}
}
}
impl crate::Payload for Payload {
const TYPE_URI: &'static str = "https://trusttasks.org/spec/credential-exchange/query/0.1";
const IS_ISSUED_AT_REQUIRED: bool = true;
const IS_RECIPIENT_REQUIRED: bool = true;
const PAYLOAD_SCHEMA: Option<&'static str> = Some(
"{\n \"$defs\": {\n \"Ext\": {\n \"additionalProperties\": true,\n \"description\": \"Vendor-namespaced extension object per SPEC.md §4.5.1. Each immediate key MUST be a reverse-DNS namespace; structure under each namespace is opaque to the framework.\",\n \"minProperties\": 1,\n \"propertyNames\": {\n \"pattern\": \"^[a-z][a-z0-9-]*(\\\\.[a-z0-9-]+)+$\"\n },\n \"title\": \"Ext\",\n \"type\": \"object\"\n }\n },\n \"$id\": \"https://trusttasks.org/spec/credential-exchange/query/0.1\",\n \"$schema\": \"https://json-schema.org/draft/2020-12/schema\",\n \"additionalProperties\": false,\n \"description\": \"Verifier to holder: an OID4VP DCQL query, a freshness nonce, and a mandatory stated purpose. The holder answers with credential-exchange/present, or defers for consent.\",\n \"properties\": {\n \"dcql_query\": {\n \"description\": \"An OID4VP DCQL query object, carried verbatim: per-credential `format` selector, `meta` type discriminator (`vct_values` for SD-JWT-VC, `type_values` for W3C), and requested `claims`. Defined by OpenID for Verifiable Presentations and not re-specified here. snake_case member names are DCQL's own.\",\n \"type\": \"object\"\n },\n \"ext\": {\n \"$ref\": \"#/$defs/Ext\"\n },\n \"nonce\": {\n \"description\": \"Verifier freshness value, bound into the resulting presentation so it cannot be replayed to another verifier or at another time.\",\n \"minLength\": 1,\n \"type\": \"string\"\n },\n \"purpose\": {\n \"description\": \"The verifier's stated reason for asking, shown to the holder. REQUIRED and never empty: purpose binding means a verifier cannot ask for a credential without saying why, and a holder cannot be asked to consent to an unstated use.\",\n \"maxLength\": 500,\n \"minLength\": 1,\n \"type\": \"string\"\n }\n },\n \"required\": [\n \"dcql_query\",\n \"nonce\",\n \"purpose\"\n ],\n \"title\": \"Credential Exchange Query — payload\",\n \"type\": \"object\"\n}\n",
);
}
#[cfg(test)]
mod conformance {
//! Round-trip tests harvested from the spec's `spec.md`,
//! plus a `rejects_invalid_examples` test for any fixtures
//! in `payload.invalid-examples.json` (validate feature).
/// Each fixture in `payload.invalid-examples.json` MUST be
/// rejected by at least one of: serde deserialization, or
/// JSON-Schema validation under the `validate` feature. The
/// fixture file documents the producer-side bug class that
/// each payload exemplifies; this generated test pins it.
#[cfg(feature = "validate")]
#[test]
fn rejects_invalid_examples() {
use crate::validate::ValidatedPayload;
let fixtures: &[(&str, &str)] = &[
(
"`dcql_query` is required.",
"{\n \"nonce\": \"n-123\",\n \"purpose\": \"join the Acme community\"\n}",
),
(
"`nonce` is required — without it the presentation cannot be bound for freshness.",
"{\n \"dcql_query\": {},\n \"purpose\": \"join the Acme community\"\n}",
),
(
"`purpose` is required. A query without a stated reason cannot be consented to.",
"{\n \"dcql_query\": {},\n \"nonce\": \"n-123\"\n}",
),
(
"`purpose` must be non-empty — an empty string is not a stated reason.",
"{\n \"dcql_query\": {},\n \"nonce\": \"n-123\",\n \"purpose\": \"\"\n}",
),
(
"`nonce` must be non-empty.",
"{\n \"dcql_query\": {},\n \"nonce\": \"\",\n \"purpose\": \"join the Acme community\"\n}",
),
(
"Unknown top-level member is rejected (additionalProperties: false).",
"{\n \"__notARealMember__\": true,\n \"dcql_query\": {},\n \"nonce\": \"n-123\",\n \"purpose\": \"join\"\n}",
),
];
for (i, (note, raw)) in fixtures.iter().enumerate() {
let value: serde_json::Value = match serde_json::from_str(raw) {
Ok(v) => v,
Err(_) => continue,
};
let serde_ok = serde_json::from_value::<super::Payload>(value.clone()).is_ok();
let schema_ok = super::Payload::validate_value(&value).is_ok();
assert!(
!(serde_ok && schema_ok),
"invalid-example #{} ({:?}) was accepted by both serde and JSON Schema; \
the fixture's stated failure class is no longer caught:\n{}",
i + 1,
note,
raw
);
}
}
}