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mod substack;
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use std::convert::Infallible;
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use std::fmt::Debug;
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use std::str::FromStr;
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use std::{fmt::Display, sync::Arc};
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use giterated_stack::models::{Error, GiteratedObject, GiteratedOperation, Instance, User};
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use rsa::pkcs1::DecodeRsaPrivateKey;
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use rsa::pkcs1v15::SigningKey;
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use rsa::sha2::Sha256;
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use rsa::signature::{RandomizedSigner, SignatureEncoding};
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use rsa::RsaPrivateKey;
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use serde::{Deserialize, Serialize};
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pub use substack::{NetworkedObject, NetworkedOperation, NetworkedSubstack};
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#[derive(Clone, Default)]
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pub struct NetworkOperationState {
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authentication: Vec<Arc<dyn AuthenticationSourceProviders + Send + Sync>>,
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}
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impl NetworkOperationState {
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pub fn authenticate(
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&mut self,
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provider: impl AuthenticationSourceProviders + Send + Sync + 'static,
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) {
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self.authentication.push(Arc::new(provider))
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}
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}
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#[derive(Debug, Clone, Hash, PartialEq, Eq, Serialize, Deserialize)]
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pub struct AuthenticatedPayload {
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pub source: Vec<AuthenticationSource>,
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pub object: String,
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pub operation: String,
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pub payload: Vec<u8>,
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}
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impl AuthenticatedPayload {
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pub fn into_message(self) -> GiteratedMessage<NetworkAnyObject, NetworkAnyOperation> {
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GiteratedMessage {
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object: NetworkAnyObject(self.object),
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operation: self.operation,
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payload: NetworkAnyOperation(self.payload),
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}
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}
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}
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pub trait AuthenticationSourceProvider: Debug {
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fn authenticate(&self, payload: &Vec<u8>) -> AuthenticationSource;
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}
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pub trait AuthenticationSourceProviders: Debug {
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fn authenticate_all(&self, payload: &Vec<u8>) -> Vec<AuthenticationSource>;
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}
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impl<A> AuthenticationSourceProviders for A
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where
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A: AuthenticationSourceProvider,
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{
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fn authenticate_all(&self, payload: &Vec<u8>) -> Vec<AuthenticationSource> {
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vec![self.authenticate(payload)]
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}
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}
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impl<A, B> AuthenticationSourceProviders for (A, B)
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where
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A: AuthenticationSourceProvider,
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B: AuthenticationSourceProvider,
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{
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fn authenticate_all(&self, payload: &Vec<u8>) -> Vec<AuthenticationSource> {
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let (first, second) = self;
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vec![first.authenticate(payload), second.authenticate(payload)]
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}
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}
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mod verified {}
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#[derive(Clone, Debug)]
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pub struct UserAuthenticator {
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pub user: User,
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pub token: UserAuthenticationToken,
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}
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impl AuthenticationSourceProvider for UserAuthenticator {
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fn authenticate(&self, _payload: &Vec<u8>) -> AuthenticationSource {
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AuthenticationSource::User {
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user: self.user.clone(),
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token: self.token.clone(),
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}
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}
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}
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#[derive(Debug, Clone)]
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pub struct InstanceAuthenticator {
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pub instance: Instance,
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pub private_key: String,
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}
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impl AuthenticationSourceProvider for InstanceAuthenticator {
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fn authenticate(&self, payload: &Vec<u8>) -> AuthenticationSource {
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let mut rng = rand::thread_rng();
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let private_key = RsaPrivateKey::from_pkcs1_pem(&self.private_key).unwrap();
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let signing_key = SigningKey::<Sha256>::new(private_key);
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let signature = signing_key.sign_with_rng(&mut rng, payload);
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AuthenticationSource::Instance {
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instance: self.instance.clone(),
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signature: InstanceSignature(signature.to_bytes().into_vec()),
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}
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}
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}
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#[repr(transparent)]
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#[derive(Clone, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)]
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pub struct UserAuthenticationToken(String);
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impl From<String> for UserAuthenticationToken {
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fn from(value: String) -> Self {
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Self(value)
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}
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}
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impl ToString for UserAuthenticationToken {
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fn to_string(&self) -> String {
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self.0.clone()
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}
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}
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impl AsRef<str> for UserAuthenticationToken {
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fn as_ref(&self) -> &str {
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&self.0
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}
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}
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#[derive(Clone, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)]
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pub struct InstanceSignature(Vec<u8>);
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impl AsRef<[u8]> for InstanceSignature {
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fn as_ref(&self) -> &[u8] {
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&self.0
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}
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}
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#[derive(Clone, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)]
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pub enum AuthenticationSource {
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User {
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user: User,
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token: UserAuthenticationToken,
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},
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Instance {
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instance: Instance,
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signature: InstanceSignature,
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},
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}
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#[derive(Serialize)]
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#[serde(bound(deserialize = "O: GiteratedObject, V: GiteratedOperation<O>"))]
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pub struct GiteratedMessage<O: GiteratedObject, V: GiteratedOperation<O>> {
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#[serde(with = "string")]
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pub object: O,
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pub operation: String,
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pub payload: V,
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}
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#[allow(unused)]
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mod string {
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use std::fmt::Display;
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use std::str::FromStr;
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use serde::{de, Deserialize, Deserializer, Serializer};
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pub fn serialize<T, S>(value: &T, serializer: S) -> Result<S::Ok, S::Error>
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where
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T: Display,
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S: Serializer,
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{
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serializer.collect_str(value)
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}
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pub fn deserialize<'de, T, D>(deserializer: D) -> Result<T, D::Error>
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where
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T: FromStr,
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T::Err: Display,
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D: Deserializer<'de>,
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{
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String::deserialize(deserializer)?
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.parse()
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.map_err(de::Error::custom)
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}
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}
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impl GiteratedMessage<NetworkAnyObject, NetworkAnyOperation> {
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pub fn try_into<O: GiteratedObject, V: GiteratedOperation<O>>(
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&self,
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) -> Result<GiteratedMessage<O, V>, ()> {
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let object = O::from_object_str(&self.object.0).map_err(|_| ())?;
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let payload = serde_json::from_slice::<V>(&self.payload.0).map_err(|_| ())?;
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Ok(GiteratedMessage {
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object,
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operation: self.operation.clone(),
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payload,
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})
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}
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}
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impl<V: GiteratedOperation<O> + Debug, O: GiteratedObject + Debug> Debug
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for GiteratedMessage<O, V>
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{
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.debug_struct("GiteratedMessage")
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.field("object", &self.object)
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.field("operation", &self.operation)
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.field("payload", &self.payload)
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.finish()
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}
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}
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#[derive(Clone, Debug, Serialize, Deserialize)]
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#[serde(transparent)]
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#[repr(transparent)]
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pub struct NetworkAnyObject(pub String);
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impl GiteratedObject for NetworkAnyObject {
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fn object_name() -> &'static str {
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"any"
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}
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fn from_object_str(object_str: &str) -> Result<Self, Error> {
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Ok(Self(object_str.to_string()))
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}
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}
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impl Display for NetworkAnyObject {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.write_str(&self.0)
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}
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}
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impl FromStr for NetworkAnyObject {
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type Err = Infallible;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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Ok(Self(s.to_owned()))
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}
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}
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#[derive(Clone, Debug, Serialize, Deserialize)]
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#[serde(transparent)]
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#[repr(transparent)]
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pub struct NetworkAnyOperation(pub Vec<u8>);
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impl<O: GiteratedObject> GiteratedOperation<O> for NetworkAnyOperation {
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type Success = Vec<u8>;
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type Failure = Vec<u8>;
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}
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