77 lines
2.2 KiB
Rust
77 lines
2.2 KiB
Rust
use crate::{data::ActorCache, error::MyError, requests::Requests};
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use activitystreams::primitives::XsdAnyUri;
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use http_signature_normalization_actix::{prelude::*, verify::DeprecatedAlgorithm};
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use log::{error, warn};
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use rsa::{hash::Hashes, padding::PaddingScheme, PublicKey, RSAPublicKey};
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use rsa_pem::KeyExt;
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use sha2::{Digest, Sha256};
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use std::{future::Future, pin::Pin};
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#[derive(Clone)]
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pub struct MyVerify(pub Requests, pub ActorCache);
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impl MyVerify {
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async fn verify(
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&self,
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algorithm: Option<Algorithm>,
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key_id: String,
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signature: String,
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signing_string: String,
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) -> Result<bool, MyError> {
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let mut uri: XsdAnyUri = key_id.parse()?;
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uri.as_url_mut().set_fragment(None);
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let actor = self.1.get(&uri, &self.0).await?;
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let public_key = RSAPublicKey::from_pem_pkcs8(&actor.public_key)?;
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match algorithm {
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Some(Algorithm::Hs2019) => (),
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Some(Algorithm::Deprecated(DeprecatedAlgorithm::RsaSha256)) => (),
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other => {
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warn!("Invalid algorithm supplied for signature, {:?}", other);
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return Err(MyError::Algorithm);
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}
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};
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let decoded = base64::decode(signature)?;
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let hashed = Sha256::digest(signing_string.as_bytes());
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public_key.verify(
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PaddingScheme::PKCS1v15,
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Some(&Hashes::SHA2_256),
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&hashed,
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&decoded,
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)?;
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Ok(true)
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}
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}
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impl SignatureVerify for MyVerify {
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type Error = MyError;
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type Future = Pin<Box<dyn Future<Output = Result<bool, Self::Error>>>>;
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fn signature_verify(
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&mut self,
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algorithm: Option<Algorithm>,
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key_id: &str,
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signature: &str,
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signing_string: &str,
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) -> Self::Future {
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let key_id = key_id.to_owned();
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let signature = signature.to_owned();
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let signing_string = signing_string.to_owned();
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let this = self.clone();
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Box::pin(async move {
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this.verify(algorithm, key_id, signature, signing_string)
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.await
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.map_err(|e| {
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error!("Failed to verify, {}", e);
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e
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})
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})
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}
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}
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