pub fn deserialize_compact_with_selector<'a, F>(
        &self,
        input: impl AsRef<[u8]>,
        selector: F,
    ) -> Result<(Vec<u8>, JweHeader), JoseError>
    where
        F: Fn(&JweHeader) -> Result<Option<&'a dyn JweDecrypter>, JoseError>,
    {
        (|| -> anyhow::Result<(Vec<u8>, JweHeader)> {
            let input = input.as_ref();
            let indexies: Vec<usize> = input
                .iter()
                .enumerate()
                .filter(|(_, b)| **b == b'.' as u8)
                .map(|(pos, _)| pos)
                .collect();
            if indexies.len() != 4 {
                bail!(
                    "The compact serialization form of JWE must be five parts separated by colon."
                );
            }

            let header_b64 = &input[0..indexies[0]];

            let encrypted_key_b64 = &input[(indexies[0] + 1)..(indexies[1])];
            let encrypted_key_vec;
            let encrypted_key = if encrypted_key_b64.len() > 0 {
                encrypted_key_vec =
                    base64::decode_config(encrypted_key_b64, base64::URL_SAFE_NO_PAD)?;
                Some(encrypted_key_vec.as_slice())
            } else {
                None
            };

            let iv_b64 = &input[(indexies[1] + 1)..(indexies[2])];
            let iv_vec;
            let iv = if iv_b64.len() > 0 {
                iv_vec = base64::decode_config(iv_b64, base64::URL_SAFE_NO_PAD)?;
                Some(iv_vec.as_slice())
            } else {
                None
            };

            let ciphertext_b64 = &input[(indexies[2] + 1)..(indexies[3])];
            let ciphertext = base64::decode_config(ciphertext_b64, base64::URL_SAFE_NO_PAD)?;

            let tag_b64 = &input[(indexies[3] + 1)..];
            let tag_vec;
            let tag = if tag_b64.len() > 0 {
                tag_vec = base64::decode_config(tag_b64, base64::URL_SAFE_NO_PAD)?;
                Some(tag_vec.as_slice())
            } else {
                None
            };

            let header = base64::decode_config(header_b64, base64::URL_SAFE_NO_PAD)?;
            let merged: Map<String, Value> = serde_json::from_slice(&header)?;
            let merged = JweHeader::from_map(merged)?;

            let decrypter = match selector(&merged)? {
                Some(val) => val,
                None => bail!("A decrypter is not found."),
            };

            let cencryption = match merged.claim("enc") {
                Some(Value::String(val)) => match self.get_content_encryption(val) {
                    Some(val2) => val2,
                    None => bail!("A content encryption is not registered: {}", val),
                },
                Some(_) => bail!("A enc header claim must be a string."),
                None => bail!("A enc header claim is required."),
            };

            let compression = match merged.claim("zip") {
                Some(Value::String(val)) => match self.get_compression(val) {
                    Some(val2) => Some(val2),
                    None => bail!("A compression algorithm is not registered: {}", val),
                },
                Some(_) => bail!("A enc header claim must be a string."),
                None => None,
            };

            match merged.claim("alg") {
                Some(Value::String(val)) => {
                    let expected_alg = decrypter.algorithm().name();
                    if val != expected_alg {
                        bail!("The JWE alg header claim is not {}: {}", expected_alg, val);
                    }
                }
                Some(_) => bail!("A alg header claim must be a string."),
                None => bail!("The JWE alg header claim is required."),
            }

            match decrypter.key_id() {
                Some(expected) => match merged.key_id() {
                    Some(actual) if expected == actual => {}
                    Some(actual) => bail!("The JWE kid header claim is mismatched: {}", actual),
                    None => bail!("The JWE kid header claim is required."),
                },
                None => {}
            }

            let key = decrypter.decrypt(encrypted_key, cencryption, &merged)?;
            if key.len() != cencryption.key_len() {
                bail!(
                    "The key size is expected to be {}: {}",
                    cencryption.key_len(),
                    key.len()
                );
            }

            let content = cencryption.decrypt(&key, iv, &ciphertext, header_b64, tag)?;
            let content = match compression {
                Some(val) => val.decompress(&content)?,
                None => content,
            };

            Ok((content, merged))
        })()
        .map_err(|err| match err.downcast::<JoseError>() {
            Ok(err) => err,
            Err(err) => JoseError::InvalidJweFormat(err),
        })
    }
/// Deserialize the input that is formatted by compact serialization.
///
/// # Arguments
///
/// * `input` - The input data.
/// * `selector` - a function for selecting the decrypting algorithm.
Deserialize the input that is formatted by compact serialization.
Deserialize the input that is formatted by compact serialization .
pub fn deserialize_compact_with_selector<'a, F>(
        &self,
        input: impl AsRef<[u8]>,
        selector: F,
    ) -> Result<(Vec<u8>, JweHeader), JoseError>
    where
        F: Fn(&JweHeader) -> Result<Option<&'a dyn JweDecrypter>, JoseError>,
    {
        (|| -> anyhow::Result<(Vec<u8>, JweHeader)> {
            let input = input.as_ref();
            let indexies: Vec<usize> = input
                .iter()
                .enumerate()
                .filter(|(_, b)| **b == b'.' as u8)
                .map(|(pos, _)| pos)
                .collect();
            if indexies.len() != 4 {
                bail!(
                    "The compact serialization form of JWE must be five parts separated by colon."
                );
            }
            let header_b64 = &input[0..indexies[0]];
            let encrypted_key_b64 = &input[(indexies[0] + 1)..(indexies[1])];
            let encrypted_key_vec;
            let encrypted_key = if encrypted_key_b64.len() > 0 {
                encrypted_key_vec =
                    base64::decode_config(encrypted_key_b64, base64::URL_SAFE_NO_PAD)?;
                Some(encrypted_key_vec.as_slice())
            } else {
                None
            };
            let iv_b64 = &input[(indexies[1] + 1)..(indexies[2])];
            let iv_vec;
            let iv = if iv_b64.len() > 0 {
                iv_vec = base64::decode_config(iv_b64, base64::URL_SAFE_NO_PAD)?;
                Some(iv_vec.as_slice())
            } else {
                None
            };
            let ciphertext_b64 = &input[(indexies[2] + 1)..(indexies[3])];
            let ciphertext = base64::decode_config(ciphertext_b64, base64::URL_SAFE_NO_PAD)?;
            let tag_b64 = &input[(indexies[3] + 1)..];
            let tag_vec;
            let tag = if tag_b64.len() > 0 {
                tag_vec = base64::decode_config(tag_b64, base64::URL_SAFE_NO_PAD)?;
                Some(tag_vec.as_slice())
            } else {
                None
            };
            let header = base64::decode_config(header_b64, base64::URL_SAFE_NO_PAD)?;
            let merged: Map<String, Value> = serde_json::from_slice(&header)?;
            let merged = JweHeader::from_map(merged)?;
            let decrypter = match selector(&merged)? {
                Some(val) => val,
                None => bail!("A decrypter is not found."),
            };
            let cencryption = match merged.claim("enc") {
                Some(Value::String(val)) => match self.get_content_encryption(val) {
                    Some(val2) => val2,
                    None => bail!("A content encryption is not registered: {}", val),
                },
                Some(_) => bail!("A enc header claim must be a string."),
                None => bail!("A enc header claim is required."),
            };
            let compression = match merged.claim("zip") {
                Some(Value::String(val)) => match self.get_compression(val) {
                    Some(val2) => Some(val2),
                    None => bail!("A compression algorithm is not registered: {}", val),
                },
                Some(_) => bail!("A enc header claim must be a string."),
                None => None,
            };
            match merged.claim("alg") {
                Some(Value::String(val)) => {
                    let expected_alg = decrypter.algorithm().name();
                    if val != expected_alg {
                        bail!("The JWE alg header claim is not {}: {}", expected_alg, val);
                    }
                }
                Some(_) => bail!("A alg header claim must be a string."),
                None => bail!("The JWE alg header claim is required."),
            }
            match decrypter.key_id() {
                Some(expected) => match merged.key_id() {
                    Some(actual) if expected == actual => {}
                    Some(actual) => bail!("The JWE kid header claim is mismatched: {}", actual),
                    None => bail!("The JWE kid header claim is required."),
                },
                None => {}
            }
            let key = decrypter.decrypt(encrypted_key, cencryption, &merged)?;
            if key.len() != cencryption.key_len() {
                bail!(
                    "The key size is expected to be {}: {}",
                    cencryption.key_len(),
                    key.len()
                );
            }
            let content = cencryption.decrypt(&key, iv, &ciphertext, header_b64, tag)?;
            let content = match compression {
                Some(val) => val.decompress(&content)?,
                None => content,
            };
            Ok((content, merged))
        })()
        .map_err(|err| match err.downcast::<JoseError>() {
            Ok(err) => err,
            Err(err) => JoseError::InvalidJweFormat(err),
        })
    }
pub fn deserialize_compact_with_selector < ' a , F > ( & self , input : impl AsRef < [ u8 ] > , selector : F , ) -> Result < ( Vec < u8 > , JweHeader ) , JoseError > where F : Fn ( & JweHeader ) -> Result < Option < & ' a dyn JweDecrypter > , JoseError > , { ( | | -> anyhow :: Result < ( Vec < u8 > , JweHeader ) > { let input = input . as_ref ( ) ; let indexies : Vec < usize > = input . iter ( ) . enumerate ( ) . filter ( | ( _ , b ) | * * b == b'.' as u8 ) . map ( | ( pos , _ ) | pos ) . collect ( ) ; if indexies . len ( ) != 4 { bail ! ( " " ) ; } let header_b64 = & input [ 0 .. indexies [ 0 ] ] ; let encrypted_key_b64 = & input [ ( indexies [ 0 ] + 1 ) .. ( indexies [ 1 ] ) ] ; let encrypted_key_vec ; let encrypted_key = if encrypted_key_b64 . len ( ) > 0 { encrypted_key_vec = base64 :: decode_config ( encrypted_key_b64 , base64 :: URL_SAFE_NO_PAD ) ? ; Some ( encrypted_key_vec . as_slice ( ) ) } else { None } ; let iv_b64 = & input [ ( indexies [ 1 ] + 1 ) .. ( indexies [ 2 ] ) ] ; let iv_vec ; let iv = if iv_b64 . len ( ) > 0 { iv_vec = base64 :: decode_config ( iv_b64 , base64 :: URL_SAFE_NO_PAD ) ? ; Some ( iv_vec . as_slice ( ) ) } else { None } ; let ciphertext_b64 = & input [ ( indexies [ 2 ] + 1 ) .. ( indexies [ 3 ] ) ] ; let ciphertext = base64 :: decode_config ( ciphertext_b64 , base64 :: URL_SAFE_NO_PAD ) ? ; let tag_b64 = & input [ ( indexies [ 3 ] + 1 ) .. ] ; let tag_vec ; let tag = if tag_b64 . len ( ) > 0 { tag_vec = base64 :: decode_config ( tag_b64 , base64 :: URL_SAFE_NO_PAD ) ? ; Some ( tag_vec . as_slice ( ) ) } else { None } ; let header = base64 :: decode_config ( header_b64 , base64 :: URL_SAFE_NO_PAD ) ? ; let merged : Map < String , Value > = serde_json :: from_slice ( & header ) ? ; let merged = JweHeader :: from_map ( merged ) ? ; let decrypter = match selector ( & merged ) ? { Some ( val ) => val , None => bail ! ( " " ) , } ; let cencryption = match merged . claim ( " " ) { Some ( Value :: String ( val ) ) => match self . get_content_encryption ( val ) { Some ( val2 ) => val2 , None => bail ! ( " " val ) , } , Some ( _ ) => bail ! ( " " ) , None => bail ! ( " " ) , } ; let compression = match merged . claim ( " " ) { Some ( Value :: String ( val ) ) => match self . get_compression ( val ) { Some ( val2 ) => Some ( val2 ) , None => bail ! ( " " val ) , } , Some ( _ ) => bail ! ( " " ) , None => None , } ; match merged . claim ( " " ) { Some ( Value :: String ( val ) ) => { let expected_alg = decrypter . algorithm ( ) . name ( ) ; if val != expected_alg { bail ! ( " " expected_alg val ) ; } } Some ( _ ) => bail ! ( " " ) , None => bail ! ( " " ) , } match decrypter . key_id ( ) { Some ( expected ) => match merged . key_id ( ) { Some ( actual ) if expected == actual => { } Some ( actual ) => bail ! ( " " actual ) , None => bail ! ( " " ) , } , None => { } } let key = decrypter . decrypt ( encrypted_key , cencryption , & merged ) ? ; if key . len ( ) != cencryption . key_len ( ) { bail ! ( " " cencryption key_len ( ) key len ( ) ) ; } let content = cencryption . decrypt ( & key , iv , & ciphertext , header_b64 , tag ) ? ; let content = match compression { Some ( val ) => val . decompress ( & content ) ? , None => content , } ; Ok ( ( content , merged ) ) } ) ( ) . map_err ( | err | match err . downcast :: < JoseError > ( ) { Ok ( err ) => err , Err ( err ) => JoseError :: InvalidJweFormat ( err ) , } ) }
Deserialize the input that is formatted by compact serialization.
Deserialize the input that is formatted by compact serialization .
&self
input
impl AsRef<[u8]>
selector
F
&self
input
impl AsRef<[u8]>
selector
F