diff options
Diffstat (limited to 'utils/tcp_connection')
21 files changed, 1976 insertions, 0 deletions
diff --git a/utils/tcp_connection/Cargo.toml b/utils/tcp_connection/Cargo.toml new file mode 100644 index 0000000..da258be --- /dev/null +++ b/utils/tcp_connection/Cargo.toml @@ -0,0 +1,28 @@ +[package] +name = "tcp_connection" +edition = "2024" +version.workspace = true + +[dependencies] +tokio = { version = "1.48.0", features = ["full"] } + +# Serialization +serde = { version = "1.0.228", features = ["derive"] } +serde_json = "1.0.145" +rmp-serde = "1.3.0" + +# Error handling +thiserror = "2.0.17" + +# Uuid & Random +uuid = "1.18.1" + +# Crypto +rsa = { version = "0.9", features = ["pkcs5", "sha2"] } +ed25519-dalek = "3.0.0-pre.1" +ring = "0.17.14" +rand = "0.10.0-rc.0" +base64 = "0.22.1" +pem = "3.0.6" +crc = "3.3.0" +blake3 = "1.8.2" diff --git a/utils/tcp_connection/src/error.rs b/utils/tcp_connection/src/error.rs new file mode 100644 index 0000000..32d06cc --- /dev/null +++ b/utils/tcp_connection/src/error.rs @@ -0,0 +1,122 @@ +use std::io; +use thiserror::Error; + +#[derive(Error, Debug, Clone)] +pub enum TcpTargetError { + #[error("Authentication failed: {0}")] + Authentication(String), + + #[error("Reference sheet not allowed: {0}")] + ReferenceSheetNotAllowed(String), + + #[error("Cryptographic error: {0}")] + Crypto(String), + + #[error("File operation error: {0}")] + File(String), + + #[error("I/O error: {0}")] + Io(String), + + #[error("Invalid configuration: {0}")] + Config(String), + + #[error("Locked: {0}")] + Locked(String), + + #[error("Network error: {0}")] + Network(String), + + #[error("No result: {0}")] + NoResult(String), + + #[error("Not found: {0}")] + NotFound(String), + + #[error("Not local machine: {0}")] + NotLocal(String), + + #[error("Not remote machine: {0}")] + NotRemote(String), + + #[error("Pool already exists: {0}")] + PoolAlreadyExists(String), + + #[error("Protocol error: {0}")] + Protocol(String), + + #[error("Serialization error: {0}")] + Serialization(String), + + #[error("Timeout: {0}")] + Timeout(String), + + #[error("Unsupported operation: {0}")] + Unsupported(String), +} + +impl From<io::Error> for TcpTargetError { + fn from(error: io::Error) -> Self { + TcpTargetError::Io(error.to_string()) + } +} + +impl From<serde_json::Error> for TcpTargetError { + fn from(error: serde_json::Error) -> Self { + TcpTargetError::Serialization(error.to_string()) + } +} + +impl From<&str> for TcpTargetError { + fn from(value: &str) -> Self { + TcpTargetError::Protocol(value.to_string()) + } +} + +impl From<String> for TcpTargetError { + fn from(value: String) -> Self { + TcpTargetError::Protocol(value) + } +} + +impl From<rsa::errors::Error> for TcpTargetError { + fn from(error: rsa::errors::Error) -> Self { + TcpTargetError::Crypto(error.to_string()) + } +} + +impl From<ed25519_dalek::SignatureError> for TcpTargetError { + fn from(error: ed25519_dalek::SignatureError) -> Self { + TcpTargetError::Crypto(error.to_string()) + } +} + +impl From<ring::error::Unspecified> for TcpTargetError { + fn from(error: ring::error::Unspecified) -> Self { + TcpTargetError::Crypto(error.to_string()) + } +} + +impl From<base64::DecodeError> for TcpTargetError { + fn from(error: base64::DecodeError) -> Self { + TcpTargetError::Serialization(error.to_string()) + } +} + +impl From<pem::PemError> for TcpTargetError { + fn from(error: pem::PemError) -> Self { + TcpTargetError::Crypto(error.to_string()) + } +} + +impl From<rmp_serde::encode::Error> for TcpTargetError { + fn from(error: rmp_serde::encode::Error) -> Self { + TcpTargetError::Serialization(error.to_string()) + } +} + +impl From<rmp_serde::decode::Error> for TcpTargetError { + fn from(error: rmp_serde::decode::Error) -> Self { + TcpTargetError::Serialization(error.to_string()) + } +} diff --git a/utils/tcp_connection/src/instance.rs b/utils/tcp_connection/src/instance.rs new file mode 100644 index 0000000..8e6886c --- /dev/null +++ b/utils/tcp_connection/src/instance.rs @@ -0,0 +1,542 @@ +use std::{path::Path, time::Duration}; + +use serde::Serialize; +use tokio::{ + fs::{File, OpenOptions}, + io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader, BufWriter}, + net::TcpStream, +}; + +use ring::signature::{self}; + +use crate::error::TcpTargetError; + +const DEFAULT_CHUNK_SIZE: usize = 4096; +const DEFAULT_TIMEOUT_SECS: u64 = 10; + +const ECDSA_P256_SHA256_ASN1_SIGNING: &signature::EcdsaSigningAlgorithm = + &signature::ECDSA_P256_SHA256_ASN1_SIGNING; +const ECDSA_P384_SHA384_ASN1_SIGNING: &signature::EcdsaSigningAlgorithm = + &signature::ECDSA_P384_SHA384_ASN1_SIGNING; + +#[derive(Debug, Clone)] +pub struct ConnectionConfig { + pub chunk_size: usize, + pub timeout_secs: u64, + pub enable_crc_validation: bool, +} + +impl Default for ConnectionConfig { + fn default() -> Self { + Self { + chunk_size: DEFAULT_CHUNK_SIZE, + timeout_secs: DEFAULT_TIMEOUT_SECS, + enable_crc_validation: false, + } + } +} + +pub struct ConnectionInstance { + pub(crate) stream: TcpStream, + config: ConnectionConfig, +} + +impl From<TcpStream> for ConnectionInstance { + fn from(stream: TcpStream) -> Self { + Self { + stream, + config: ConnectionConfig::default(), + } + } +} + +impl ConnectionInstance { + /// Create a new ConnectionInstance with custom configuration + pub fn with_config(stream: TcpStream, config: ConnectionConfig) -> Self { + Self { stream, config } + } + + /// Get a reference to the current configuration + pub fn config(&self) -> &ConnectionConfig { + &self.config + } + + /// Get a mutable reference to the current configuration + pub fn config_mut(&mut self) -> &mut ConnectionConfig { + &mut self.config + } + /// Serialize data and write to the target machine + pub async fn write<Data>(&mut self, data: Data) -> Result<(), TcpTargetError> + where + Data: Default + Serialize, + { + let Ok(json_text) = serde_json::to_string(&data) else { + return Err(TcpTargetError::Serialization( + "Serialize failed.".to_string(), + )); + }; + Self::write_text(self, json_text).await?; + Ok(()) + } + + /// Serialize data to MessagePack and write to the target machine + pub async fn write_msgpack<Data>(&mut self, data: Data) -> Result<(), TcpTargetError> + where + Data: Serialize, + { + let msgpack_data = rmp_serde::to_vec(&data)?; + let len = msgpack_data.len() as u32; + + self.stream.write_all(&len.to_be_bytes()).await?; + self.stream.write_all(&msgpack_data).await?; + Ok(()) + } + + /// Read data from target machine and deserialize from MessagePack + pub async fn read_msgpack<Data>(&mut self) -> Result<Data, TcpTargetError> + where + Data: serde::de::DeserializeOwned, + { + let mut len_buf = [0u8; 4]; + self.stream.read_exact(&mut len_buf).await?; + let len = u32::from_be_bytes(len_buf) as usize; + + let mut buffer = vec![0; len]; + self.stream.read_exact(&mut buffer).await?; + + let data = rmp_serde::from_slice(&buffer)?; + Ok(data) + } + + /// Read data from target machine and deserialize + pub async fn read<Data>(&mut self) -> Result<Data, TcpTargetError> + where + Data: Default + serde::de::DeserializeOwned, + { + let Ok(json_text) = Self::read_text(self).await else { + return Err(TcpTargetError::Io("Read failed.".to_string())); + }; + let Ok(deser_obj) = serde_json::from_str::<Data>(&json_text) else { + return Err(TcpTargetError::Serialization( + "Deserialize failed.".to_string(), + )); + }; + Ok(deser_obj) + } + + /// Serialize data and write to the target machine + pub async fn write_large<Data>(&mut self, data: Data) -> Result<(), TcpTargetError> + where + Data: Default + Serialize, + { + let Ok(json_text) = serde_json::to_string(&data) else { + return Err(TcpTargetError::Serialization( + "Serialize failed.".to_string(), + )); + }; + Self::write_large_text(self, json_text).await?; + Ok(()) + } + + /// Read data from target machine and deserialize + pub async fn read_large<Data>( + &mut self, + buffer_size: impl Into<u32>, + ) -> Result<Data, TcpTargetError> + where + Data: Default + serde::de::DeserializeOwned, + { + let Ok(json_text) = Self::read_large_text(self, buffer_size).await else { + return Err(TcpTargetError::Io("Read failed.".to_string())); + }; + let Ok(deser_obj) = serde_json::from_str::<Data>(&json_text) else { + return Err(TcpTargetError::Serialization( + "Deserialize failed.".to_string(), + )); + }; + Ok(deser_obj) + } + + /// Write text to the target machine + pub async fn write_text(&mut self, text: impl Into<String>) -> Result<(), TcpTargetError> { + let text = text.into(); + let bytes = text.as_bytes(); + let len = bytes.len() as u32; + + self.stream.write_all(&len.to_be_bytes()).await?; + match self.stream.write_all(bytes).await { + Ok(_) => Ok(()), + Err(err) => Err(TcpTargetError::Io(err.to_string())), + } + } + + /// Read text from the target machine + pub async fn read_text(&mut self) -> Result<String, TcpTargetError> { + let mut len_buf = [0u8; 4]; + self.stream.read_exact(&mut len_buf).await?; + let len = u32::from_be_bytes(len_buf) as usize; + + let mut buffer = vec![0; len]; + self.stream.read_exact(&mut buffer).await?; + + match String::from_utf8(buffer) { + Ok(text) => Ok(text), + Err(err) => Err(TcpTargetError::Serialization(format!( + "Invalid UTF-8 sequence: {}", + err + ))), + } + } + + /// Write large text to the target machine (chunked) + pub async fn write_large_text( + &mut self, + text: impl Into<String>, + ) -> Result<(), TcpTargetError> { + let text = text.into(); + let bytes = text.as_bytes(); + let mut offset = 0; + + while offset < bytes.len() { + let chunk = &bytes[offset..]; + let written = match self.stream.write(chunk).await { + Ok(n) => n, + Err(err) => return Err(TcpTargetError::Io(err.to_string())), + }; + offset += written; + } + + Ok(()) + } + + /// Read large text from the target machine (chunked) + pub async fn read_large_text( + &mut self, + chunk_size: impl Into<u32>, + ) -> Result<String, TcpTargetError> { + let chunk_size = chunk_size.into() as usize; + let mut buffer = Vec::new(); + let mut chunk_buf = vec![0; chunk_size]; + + loop { + match self.stream.read(&mut chunk_buf).await { + Ok(0) => break, // EOF + Ok(n) => { + buffer.extend_from_slice(&chunk_buf[..n]); + } + Err(err) => return Err(TcpTargetError::Io(err.to_string())), + } + } + + Ok(String::from_utf8_lossy(&buffer).to_string()) + } + + /// Write large MessagePack data to the target machine (chunked) + pub async fn write_large_msgpack<Data>( + &mut self, + data: Data, + chunk_size: impl Into<u32>, + ) -> Result<(), TcpTargetError> + where + Data: Serialize, + { + let msgpack_data = rmp_serde::to_vec(&data)?; + let chunk_size = chunk_size.into() as usize; + let len = msgpack_data.len() as u32; + + // Write total length first + self.stream.write_all(&len.to_be_bytes()).await?; + + // Write data in chunks + let mut offset = 0; + while offset < msgpack_data.len() { + let end = std::cmp::min(offset + chunk_size, msgpack_data.len()); + let chunk = &msgpack_data[offset..end]; + match self.stream.write(chunk).await { + Ok(n) => offset += n, + Err(err) => return Err(TcpTargetError::Io(err.to_string())), + } + } + + Ok(()) + } + + /// Read large MessagePack data from the target machine (chunked) + pub async fn read_large_msgpack<Data>( + &mut self, + chunk_size: impl Into<u32>, + ) -> Result<Data, TcpTargetError> + where + Data: serde::de::DeserializeOwned, + { + let chunk_size = chunk_size.into() as usize; + + // Read total length first + let mut len_buf = [0u8; 4]; + self.stream.read_exact(&mut len_buf).await?; + let total_len = u32::from_be_bytes(len_buf) as usize; + + // Read data in chunks + let mut buffer = Vec::with_capacity(total_len); + let mut remaining = total_len; + let mut chunk_buf = vec![0; chunk_size]; + + while remaining > 0 { + let read_size = std::cmp::min(chunk_size, remaining); + let chunk = &mut chunk_buf[..read_size]; + + match self.stream.read_exact(chunk).await { + Ok(_) => { + buffer.extend_from_slice(chunk); + remaining -= read_size; + } + Err(err) => return Err(TcpTargetError::Io(err.to_string())), + } + } + + let data = rmp_serde::from_slice(&buffer)?; + Ok(data) + } + + /// Write file to target machine. + pub async fn write_file(&mut self, file_path: impl AsRef<Path>) -> Result<(), TcpTargetError> { + let path = file_path.as_ref(); + + // Validate file + if !path.exists() { + return Err(TcpTargetError::File(format!( + "File not found: {}", + path.display() + ))); + } + if path.is_dir() { + return Err(TcpTargetError::File(format!( + "Path is directory: {}", + path.display() + ))); + } + + // Open file and get metadata + let mut file = File::open(path).await?; + let file_size = file.metadata().await?.len(); + + // Send file header (version + size + crc) + self.stream.write_all(&1u64.to_be_bytes()).await?; + self.stream.write_all(&file_size.to_be_bytes()).await?; + + // Calculate and send CRC32 if enabled + let file_crc = if self.config.enable_crc_validation { + let crc32 = crc::Crc::<u32>::new(&crc::CRC_32_ISO_HDLC); + let mut crc_calculator = crc32.digest(); + + let mut temp_reader = + BufReader::with_capacity(self.config.chunk_size, File::open(path).await?); + let mut temp_buffer = vec![0u8; self.config.chunk_size]; + let mut temp_bytes_read = 0; + + while temp_bytes_read < file_size { + let bytes_to_read = + (file_size - temp_bytes_read).min(self.config.chunk_size as u64) as usize; + temp_reader + .read_exact(&mut temp_buffer[..bytes_to_read]) + .await?; + crc_calculator.update(&temp_buffer[..bytes_to_read]); + temp_bytes_read += bytes_to_read as u64; + } + + crc_calculator.finalize() + } else { + 0 + }; + + self.stream.write_all(&file_crc.to_be_bytes()).await?; + + // If file size is 0, skip content transfer + if file_size == 0 { + self.stream.flush().await?; + + // Wait for receiver confirmation + let mut ack = [0u8; 1]; + tokio::time::timeout( + Duration::from_secs(self.config.timeout_secs), + self.stream.read_exact(&mut ack), + ) + .await + .map_err(|_| TcpTargetError::Timeout("Ack timeout".to_string()))??; + + if ack[0] != 1 { + return Err(TcpTargetError::Protocol( + "Receiver verification failed".to_string(), + )); + } + + return Ok(()); + } + + // Transfer file content + let mut reader = BufReader::with_capacity(self.config.chunk_size, &mut file); + let mut bytes_sent = 0; + + while bytes_sent < file_size { + let buffer = reader.fill_buf().await?; + if buffer.is_empty() { + break; + } + + let chunk_size = buffer.len().min((file_size - bytes_sent) as usize); + self.stream.write_all(&buffer[..chunk_size]).await?; + reader.consume(chunk_size); + + bytes_sent += chunk_size as u64; + } + + // Verify transfer completion + if bytes_sent != file_size { + return Err(TcpTargetError::File(format!( + "Transfer incomplete: expected {} bytes, sent {} bytes", + file_size, bytes_sent + ))); + } + + self.stream.flush().await?; + + // Wait for receiver confirmation + let mut ack = [0u8; 1]; + tokio::time::timeout( + Duration::from_secs(self.config.timeout_secs), + self.stream.read_exact(&mut ack), + ) + .await + .map_err(|_| TcpTargetError::Timeout("Ack timeout".to_string()))??; + + if ack[0] != 1 { + return Err(TcpTargetError::Protocol( + "Receiver verification failed".to_string(), + )); + } + + Ok(()) + } + + /// Read file from target machine + pub async fn read_file(&mut self, save_path: impl AsRef<Path>) -> Result<(), TcpTargetError> { + let path = save_path.as_ref(); + // Create CRC instance at function scope to ensure proper lifetime + let crc_instance = crc::Crc::<u32>::new(&crc::CRC_32_ISO_HDLC); + + // Make sure parent directory exists + if let Some(parent) = path.parent() + && !parent.exists() + { + tokio::fs::create_dir_all(parent).await?; + } + + // Read file header (version + size + crc) + let mut version_buf = [0u8; 8]; + self.stream.read_exact(&mut version_buf).await?; + let version = u64::from_be_bytes(version_buf); + if version != 1 { + return Err(TcpTargetError::Protocol( + "Unsupported transfer version".to_string(), + )); + } + + let mut size_buf = [0u8; 8]; + self.stream.read_exact(&mut size_buf).await?; + let file_size = u64::from_be_bytes(size_buf); + + let mut expected_crc_buf = [0u8; 4]; + self.stream.read_exact(&mut expected_crc_buf).await?; + let expected_crc = u32::from_be_bytes(expected_crc_buf); + if file_size == 0 { + // Create empty file and return early + let _file = OpenOptions::new() + .write(true) + .create(true) + .truncate(true) + .open(path) + .await?; + // Send confirmation + self.stream.write_all(&[1u8]).await?; + self.stream.flush().await?; + return Ok(()); + } + + // Prepare output file + let file = OpenOptions::new() + .write(true) + .create(true) + .truncate(true) + .open(path) + .await?; + let mut writer = BufWriter::with_capacity(self.config.chunk_size, file); + + // Receive file content with CRC calculation if enabled + let mut bytes_received = 0; + let mut buffer = vec![0u8; self.config.chunk_size]; + let mut crc_calculator = if self.config.enable_crc_validation { + Some(crc_instance.digest()) + } else { + None + }; + + while bytes_received < file_size { + let bytes_to_read = + (file_size - bytes_received).min(self.config.chunk_size as u64) as usize; + let chunk = &mut buffer[..bytes_to_read]; + + self.stream.read_exact(chunk).await?; + + writer.write_all(chunk).await?; + + // Update CRC if validation is enabled + if let Some(ref mut crc) = crc_calculator { + crc.update(chunk); + } + + bytes_received += bytes_to_read as u64; + } + + // Verify transfer completion + if bytes_received != file_size { + return Err(TcpTargetError::File(format!( + "Transfer incomplete: expected {} bytes, received {} bytes", + file_size, bytes_received + ))); + } + + writer.flush().await?; + + // Validate CRC if enabled + if self.config.enable_crc_validation + && let Some(crc_calculator) = crc_calculator + { + let actual_crc = crc_calculator.finalize(); + if actual_crc != expected_crc && expected_crc != 0 { + return Err(TcpTargetError::File(format!( + "CRC validation failed: expected {:08x}, got {:08x}", + expected_crc, actual_crc + ))); + } + } + + // Final flush and sync + writer.flush().await?; + writer.into_inner().sync_all().await?; + + // Verify completion + if bytes_received != file_size { + let _ = tokio::fs::remove_file(path).await; + return Err(TcpTargetError::File(format!( + "Transfer incomplete: expected {} bytes, received {} bytes", + file_size, bytes_received + ))); + } + + // Send confirmation + self.stream.write_all(&[1u8]).await?; + self.stream.flush().await?; + + Ok(()) + } +} diff --git a/utils/tcp_connection/src/instance_challenge.rs b/utils/tcp_connection/src/instance_challenge.rs new file mode 100644 index 0000000..3a7f6a3 --- /dev/null +++ b/utils/tcp_connection/src/instance_challenge.rs @@ -0,0 +1,311 @@ +use std::path::Path; + +use rand::TryRngCore; +use rsa::{ + RsaPrivateKey, RsaPublicKey, + pkcs1::{DecodeRsaPrivateKey, DecodeRsaPublicKey}, + sha2, +}; +use tokio::io::{AsyncReadExt, AsyncWriteExt}; + +use ed25519_dalek::{Signature, Signer, SigningKey, Verifier, VerifyingKey}; +use ring::rand::SystemRandom; +use ring::signature::{ + self, ECDSA_P256_SHA256_ASN1, ECDSA_P384_SHA384_ASN1, EcdsaKeyPair, RSA_PKCS1_2048_8192_SHA256, + UnparsedPublicKey, +}; + +use crate::{error::TcpTargetError, instance::ConnectionInstance}; + +const ECDSA_P256_SHA256_ASN1_SIGNING: &signature::EcdsaSigningAlgorithm = + &signature::ECDSA_P256_SHA256_ASN1_SIGNING; +const ECDSA_P384_SHA384_ASN1_SIGNING: &signature::EcdsaSigningAlgorithm = + &signature::ECDSA_P384_SHA384_ASN1_SIGNING; + +impl ConnectionInstance { + /// Initiates a challenge to the target machine to verify connection security + /// + /// This method performs a cryptographic challenge-response authentication: + /// 1. Generates a random 32-byte challenge + /// 2. Sends the challenge to the target machine + /// 3. Receives a digital signature of the challenge + /// 4. Verifies the signature using the appropriate public key + /// + /// # Arguments + /// * `public_key_dir` - Directory containing public key files for verification + /// + /// # Returns + /// * `Ok((true, "KeyId"))` - Challenge verification successful + /// * `Ok((false, "KeyId"))` - Challenge verification failed + /// * `Err(TcpTargetError)` - Error during challenge process + pub async fn challenge( + &mut self, + public_key_dir: impl AsRef<Path>, + ) -> Result<(bool, String), TcpTargetError> { + // Generate random challenge + let mut challenge = [0u8; 32]; + rand::rngs::OsRng + .try_fill_bytes(&mut challenge) + .map_err(|e| { + TcpTargetError::Crypto(format!("Failed to generate random challenge: {}", e)) + })?; + + // Send challenge to target + self.stream.write_all(&challenge).await?; + self.stream.flush().await?; + + // Read signature from target + let mut signature = Vec::new(); + let mut signature_len_buf = [0u8; 4]; + self.stream.read_exact(&mut signature_len_buf).await?; + + let signature_len = u32::from_be_bytes(signature_len_buf) as usize; + signature.resize(signature_len, 0); + self.stream.read_exact(&mut signature).await?; + + // Read key identifier from target to identify which public key to use + let mut key_id_len_buf = [0u8; 4]; + self.stream.read_exact(&mut key_id_len_buf).await?; + let key_id_len = u32::from_be_bytes(key_id_len_buf) as usize; + + let mut key_id_buf = vec![0u8; key_id_len]; + self.stream.read_exact(&mut key_id_buf).await?; + let key_id = String::from_utf8(key_id_buf) + .map_err(|e| TcpTargetError::Crypto(format!("Invalid key identifier: {}", e)))?; + + // Load appropriate public key + let public_key_path = public_key_dir.as_ref().join(format!("{}.pem", key_id)); + if !public_key_path.exists() { + return Ok((false, key_id)); + } + + let public_key_pem = tokio::fs::read_to_string(&public_key_path).await?; + + // Try to verify with different key types + let verified = if let Ok(rsa_key) = RsaPublicKey::from_pkcs1_pem(&public_key_pem) { + let padding = rsa::pkcs1v15::Pkcs1v15Sign::new::<sha2::Sha256>(); + rsa_key.verify(padding, &challenge, &signature).is_ok() + } else if let Ok(ed25519_key) = + VerifyingKey::from_bytes(&parse_ed25519_public_key(&public_key_pem)) + { + if signature.len() == 64 { + let sig_bytes: [u8; 64] = signature.as_slice().try_into().map_err(|_| { + TcpTargetError::Crypto("Invalid signature length for Ed25519".to_string()) + })?; + let sig = Signature::from_bytes(&sig_bytes); + ed25519_key.verify(&challenge, &sig).is_ok() + } else { + false + } + } else if let Ok(dsa_key_info) = parse_dsa_public_key(&public_key_pem) { + verify_dsa_signature(&dsa_key_info, &challenge, &signature) + } else { + false + }; + + Ok((verified, key_id)) + } + + /// Accepts a challenge from the target machine to verify connection security + /// + /// This method performs a cryptographic challenge-response authentication: + /// 1. Receives a random 32-byte challenge from the target machine + /// 2. Signs the challenge using the appropriate private key + /// 3. Sends the digital signature back to the target machine + /// 4. Sends the key identifier for public key verification + /// + /// # Arguments + /// * `private_key_file` - Path to the private key file for signing + /// * `verify_public_key` - Key identifier for public key verification + /// + /// # Returns + /// * `Ok(true)` - Challenge response sent successfully + /// * `Ok(false)` - Private key format not supported + /// * `Err(TcpTargetError)` - Error during challenge response process + pub async fn accept_challenge( + &mut self, + private_key_file: impl AsRef<Path>, + verify_public_key: &str, + ) -> Result<bool, TcpTargetError> { + // Read challenge from initiator + let mut challenge = [0u8; 32]; + self.stream.read_exact(&mut challenge).await?; + + // Load private key + let private_key_pem = tokio::fs::read_to_string(&private_key_file) + .await + .map_err(|e| { + TcpTargetError::NotFound(format!( + "Read private key \"{}\" failed: \"{}\"", + private_key_file + .as_ref() + .display() + .to_string() + .split("/") + .last() + .unwrap_or("UNKNOWN"), + e + )) + })?; + + // Sign the challenge with supported key types + let signature = if let Ok(rsa_key) = RsaPrivateKey::from_pkcs1_pem(&private_key_pem) { + let padding = rsa::pkcs1v15::Pkcs1v15Sign::new::<sha2::Sha256>(); + rsa_key.sign(padding, &challenge)? + } else if let Ok(ed25519_key) = parse_ed25519_private_key(&private_key_pem) { + ed25519_key.sign(&challenge).to_bytes().to_vec() + } else if let Ok(dsa_key_info) = parse_dsa_private_key(&private_key_pem) { + sign_with_dsa(&dsa_key_info, &challenge)? + } else { + return Ok(false); + }; + + // Send signature length and signature + let signature_len = signature.len() as u32; + self.stream.write_all(&signature_len.to_be_bytes()).await?; + self.stream.flush().await?; + self.stream.write_all(&signature).await?; + self.stream.flush().await?; + + // Send key identifier for public key identification + let key_id_bytes = verify_public_key.as_bytes(); + let key_id_len = key_id_bytes.len() as u32; + self.stream.write_all(&key_id_len.to_be_bytes()).await?; + self.stream.flush().await?; + self.stream.write_all(key_id_bytes).await?; + self.stream.flush().await?; + + Ok(true) + } +} + +/// Parse Ed25519 public key from PEM format +fn parse_ed25519_public_key(pem: &str) -> [u8; 32] { + // Robust parsing for Ed25519 public key using pem crate + let mut key_bytes = [0u8; 32]; + + if let Ok(pem_data) = pem::parse(pem) + && pem_data.tag() == "PUBLIC KEY" + && pem_data.contents().len() >= 32 + { + let contents = pem_data.contents(); + key_bytes.copy_from_slice(&contents[contents.len() - 32..]); + } + key_bytes +} + +/// Parse Ed25519 private key from PEM format +fn parse_ed25519_private_key(pem: &str) -> Result<SigningKey, TcpTargetError> { + if let Ok(pem_data) = pem::parse(pem) + && pem_data.tag() == "PRIVATE KEY" + && pem_data.contents().len() >= 32 + { + let contents = pem_data.contents(); + let mut seed = [0u8; 32]; + seed.copy_from_slice(&contents[contents.len() - 32..]); + return Ok(SigningKey::from_bytes(&seed)); + } + Err(TcpTargetError::Crypto( + "Invalid Ed25519 private key format".to_string(), + )) +} + +/// Parse DSA public key information from PEM +fn parse_dsa_public_key( + pem: &str, +) -> Result<(&'static dyn signature::VerificationAlgorithm, Vec<u8>), TcpTargetError> { + if let Ok(pem_data) = pem::parse(pem) { + let contents = pem_data.contents().to_vec(); + + // Try different DSA algorithms based on PEM tag + match pem_data.tag() { + "EC PUBLIC KEY" | "PUBLIC KEY" if pem.contains("ECDSA") || pem.contains("ecdsa") => { + if pem.contains("P-256") { + return Ok((&ECDSA_P256_SHA256_ASN1, contents)); + } else if pem.contains("P-384") { + return Ok((&ECDSA_P384_SHA384_ASN1, contents)); + } + } + "RSA PUBLIC KEY" | "PUBLIC KEY" => { + return Ok((&RSA_PKCS1_2048_8192_SHA256, contents)); + } + _ => {} + } + + // Default to RSA for unknown types + return Ok((&RSA_PKCS1_2048_8192_SHA256, contents)); + } + Err(TcpTargetError::Crypto( + "Invalid DSA public key format".to_string(), + )) +} + +/// Parse DSA private key information from PEM +fn parse_dsa_private_key( + pem: &str, +) -> Result<(&'static dyn signature::VerificationAlgorithm, Vec<u8>), TcpTargetError> { + // For DSA, private key verification uses the same algorithm as public key + parse_dsa_public_key(pem) +} + +/// Verify DSA signature +fn verify_dsa_signature( + algorithm_and_key: &(&'static dyn signature::VerificationAlgorithm, Vec<u8>), + message: &[u8], + signature: &[u8], +) -> bool { + let (algorithm, key_bytes) = algorithm_and_key; + let public_key = UnparsedPublicKey::new(*algorithm, key_bytes); + public_key.verify(message, signature).is_ok() +} + +/// Sign with DSA +fn sign_with_dsa( + algorithm_and_key: &(&'static dyn signature::VerificationAlgorithm, Vec<u8>), + message: &[u8], +) -> Result<Vec<u8>, TcpTargetError> { + let (algorithm, key_bytes) = algorithm_and_key; + + // Handle different DSA/ECDSA algorithms by comparing algorithm identifiers + // Since we can't directly compare trait objects, we use pointer comparison + let algorithm_ptr = algorithm as *const _ as *const (); + let ecdsa_p256_ptr = &ECDSA_P256_SHA256_ASN1 as *const _ as *const (); + let ecdsa_p384_ptr = &ECDSA_P384_SHA384_ASN1 as *const _ as *const (); + + if algorithm_ptr == ecdsa_p256_ptr { + let key_pair = EcdsaKeyPair::from_pkcs8( + ECDSA_P256_SHA256_ASN1_SIGNING, + key_bytes, + &SystemRandom::new(), + ) + .map_err(|e| { + TcpTargetError::Crypto(format!("Failed to create ECDSA P-256 key pair: {}", e)) + })?; + + let signature = key_pair + .sign(&SystemRandom::new(), message) + .map_err(|e| TcpTargetError::Crypto(format!("ECDSA P-256 signing failed: {}", e)))?; + + Ok(signature.as_ref().to_vec()) + } else if algorithm_ptr == ecdsa_p384_ptr { + let key_pair = EcdsaKeyPair::from_pkcs8( + ECDSA_P384_SHA384_ASN1_SIGNING, + key_bytes, + &SystemRandom::new(), + ) + .map_err(|e| { + TcpTargetError::Crypto(format!("Failed to create ECDSA P-384 key pair: {}", e)) + })?; + + let signature = key_pair + .sign(&SystemRandom::new(), message) + .map_err(|e| TcpTargetError::Crypto(format!("ECDSA P-384 signing failed: {}", e)))?; + + Ok(signature.as_ref().to_vec()) + } else { + // RSA or unsupported algorithm + Err(TcpTargetError::Unsupported( + "DSA/ECDSA signing not supported for this algorithm type".to_string(), + )) + } +} diff --git a/utils/tcp_connection/src/lib.rs b/utils/tcp_connection/src/lib.rs new file mode 100644 index 0000000..6a2e599 --- /dev/null +++ b/utils/tcp_connection/src/lib.rs @@ -0,0 +1,6 @@ +#[allow(dead_code)] +pub mod instance; + +pub mod instance_challenge; + +pub mod error; diff --git a/utils/tcp_connection/tcp_connection_test/Cargo.toml b/utils/tcp_connection/tcp_connection_test/Cargo.toml new file mode 100644 index 0000000..19a6e9b --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/Cargo.toml @@ -0,0 +1,9 @@ +[package] +name = "tcp_connection_test" +edition = "2024" +version.workspace = true + +[dependencies] +tcp_connection = { path = "../../tcp_connection" } +tokio = { version = "1.48.0", features = ["full"] } +serde = { version = "1.0.228", features = ["derive"] } diff --git a/utils/tcp_connection/tcp_connection_test/res/image/test_transfer.png b/utils/tcp_connection/tcp_connection_test/res/image/test_transfer.png Binary files differnew file mode 100644 index 0000000..5fa94f0 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/res/image/test_transfer.png diff --git a/utils/tcp_connection/tcp_connection_test/res/key/test_key.pem b/utils/tcp_connection/tcp_connection_test/res/key/test_key.pem new file mode 100644 index 0000000..e155876 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/res/key/test_key.pem @@ -0,0 +1,13 @@ +-----BEGIN RSA PUBLIC KEY----- +MIICCgKCAgEAl5vyIwGYiQ1zZpW2tg+LwOUV547T2SjlzKQjcms5je/epP4CnUfT +5cmHCe8ZaSbnofcntCzi8FzMpQmzhNzFk5tCAe4tSrghfr2kYDO7aUL0G09KbNZ5 +iuMTkMaHx6LMjZ+Ljy8fC47yC2dFMUgLjGS7xS6rnIo4YtFuvMdwbLjs7mSn+vVc +kcEV8RLlQg8wDbzpl66Jd1kiUgPfVLBRTLE/iL8kUCz1l8c+DvOzr3ATwJysM9CG +LFahGLlTd3CZaj0QsEzf/AQsn79Su+rnCXhXqcvynhAcil0UW9RWp5Zsvp3Me3W8 +pJg6vZuAA6lQ062hkRLiJ91F2rpyqtkax5i/simLjelpsRzLKo6Xsz1bZht2+5d5 +ArgTBtZBxS044t8caZWLXetnPEcxEGz8KYUVKf7X9S7R53gy36y88Fbu9giqUr3m +b3Da+SYzBT//hacGn55nhzLRdsJGaFFWcKCbpue6JHLsFhizhdEAjaec0hfphw29 +veY0adPdIFLQDmMKaNk4ulrz8Lbgpqn9gxx6fRssj9jqNJmW64a0eV+Rw7BCJazH +xp3zz4A3rwdI8BjxLUb3YiCUcavA9WzJ1DUfdX1FSvbcFw4CEiGJjfpWGrm1jtc6 +DMOsoX/C6yFOyRpipsgqIToBClchLSNgrO6A7SIoSdIqNDEgIanFcjECAwEAAQ== +-----END RSA PUBLIC KEY----- diff --git a/utils/tcp_connection/tcp_connection_test/res/key/test_key_private.pem b/utils/tcp_connection/tcp_connection_test/res/key/test_key_private.pem new file mode 100644 index 0000000..183d2d9 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/res/key/test_key_private.pem @@ -0,0 +1,51 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIJKAIBAAKCAgEAl5vyIwGYiQ1zZpW2tg+LwOUV547T2SjlzKQjcms5je/epP4C +nUfT5cmHCe8ZaSbnofcntCzi8FzMpQmzhNzFk5tCAe4tSrghfr2kYDO7aUL0G09K +bNZ5iuMTkMaHx6LMjZ+Ljy8fC47yC2dFMUgLjGS7xS6rnIo4YtFuvMdwbLjs7mSn ++vVckcEV8RLlQg8wDbzpl66Jd1kiUgPfVLBRTLE/iL8kUCz1l8c+DvOzr3ATwJys +M9CGLFahGLlTd3CZaj0QsEzf/AQsn79Su+rnCXhXqcvynhAcil0UW9RWp5Zsvp3M +e3W8pJg6vZuAA6lQ062hkRLiJ91F2rpyqtkax5i/simLjelpsRzLKo6Xsz1bZht2 ++5d5ArgTBtZBxS044t8caZWLXetnPEcxEGz8KYUVKf7X9S7R53gy36y88Fbu9giq +Ur3mb3Da+SYzBT//hacGn55nhzLRdsJGaFFWcKCbpue6JHLsFhizhdEAjaec0hfp +hw29veY0adPdIFLQDmMKaNk4ulrz8Lbgpqn9gxx6fRssj9jqNJmW64a0eV+Rw7BC +JazHxp3zz4A3rwdI8BjxLUb3YiCUcavA9WzJ1DUfdX1FSvbcFw4CEiGJjfpWGrm1 +jtc6DMOsoX/C6yFOyRpipsgqIToBClchLSNgrO6A7SIoSdIqNDEgIanFcjECAwEA +AQKCAgAd3cg9Ei7o7N/reRnV0skutlJy2+Wq9Y4TmtAq1amwZu0e5rVAI6rALUuv +bs08NEBUXVqSeXc5b6aW6orVZSJ8+gxuUevVOOHMVHKhyv8j9N8e1Cduum+WJzav +AhU0hEM0sRXunpNIlR/klDMCytUPkraU2SVQgMAr42MjyExC9skiC202GIjkY7u9 +UoIcWd6XDjycN3N4MfR7YKzpw5Q4fgBsoW73Zmv5OvRkQKkIqhUSECsyR+VuraAt +vTCOqn1meuIjQPms7WuXCrszLsrVyEHIvtcsQTNGJKECmBl8CTuh73cdaSvA5wZH 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+4/JxIQ2W/GmkrFe8NlvD1CEMyvkeV+g2wbtvjWs0Ezyzh4njJAtKMe0SEg5dFTqa +eL/GjpgfIP7Uu30V35ngkgl7CuY1D/IJg4PxKthQowKCAQBUGtFWAhMXiYa9HKfw +YLWvkgB1lQUAEoa84ooxtWvr4uXj9Ts9VkRptynxVcm0rTBRct24E3TQTY62Nkew +WSxJMPqWAULvMhNVAMvhEpFBTM0BHY00hOUeuKCJEcrp7Xd8S2/MN25kP5TmzkyP +qZBl6fNxbGD6h/HSGynq522zzbzjsNaBsjMJ2FNHClpFdVXylR0mQXvhRojpJOKg +/Bem/8YAinr1F/+f8y3S6C3HxPa7Ep56BSW731b+hjWBzsCS1+BlcPNQOA3wLZmy +4+tTUEDLLMmtTTnybxXD9+TOJpAOKc3kwPwTMaZzV1NxUOqQA/bzPtl9MLkaDa9e +kLpjAoIBACRFtxsKbe/nMqF2bOf3h/4xQNc0jGFpY8tweZT67oFhW9vCOXNbIudX +4BE5qTpyINvWrK82G/fH4ELy5+ALFFedCrM0398p5KB1B2puAtGhm4+zqqBNXVDW +6LX2Z8mdzkLQkx08L+iN+zSKv2WNErFtwI++MFKK/eMZrk5f4vId8eeC3devbtPq +jEs0tw2yuWmxuXvbY7d/3K5FGVzGKAMcIkBLcWLSH357xfygRJp/oGqlneBTWayk +85i5mwUk8jvFvE34tl5Por94O/byUULvGM9u7Shdyh5W3hZvhb8vUcEqVc179hPO +YQWT8+AVVNZ0WxjvnrQQfQKnaEPfeDsCggEBAJ7zgVVla8BOagEenKwr6nEkQzK/ +sTcF9Zp7TmyGKGdM4rW+CJqGgwswn65va+uZj7o0+D5JGeB8kRG5GtjUUzHkNBD0 +Av6KZksQDqgKdwPaH0MQSXCuUc0MYTBHDJdciN/DqdO8st69hyNRv4XdHst1SZdJ +VjUh3p4iwO4wfQQW7mvj94lLM/ypMdUqPKxVHVWQsbE9fOVbyKINuIDPDzu5iqc3 +VKScUwqpcGPZsgHr/Sguv/fdFnPs4O+N0AsAe3xbleCfQAeZnI0tR8nkYudvmxNz +MRevTAPDUBUDd0Uiy+d6w6B4vW8q9Zv3oFLXns4kWsJFajjx3TdgTacnVlI= +-----END RSA PRIVATE KEY----- diff --git a/utils/tcp_connection/tcp_connection_test/res/key/wrong_key_private.pem b/utils/tcp_connection/tcp_connection_test/res/key/wrong_key_private.pem new file mode 100644 index 0000000..4b77eea --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/res/key/wrong_key_private.pem @@ -0,0 +1,52 @@ +-----BEGIN PRIVATE KEY----- +MIIJQgIBADANBgkqhkiG9w0BAQEFAASCCSwwggkoAgEAAoICAQCvmvYR6ypNS4ld +cyJDlwv+4KC8/SxKBhlen8FX6Ltzfzi3f1I7qXZByGaTasQtc4qWgl0tLkrA8Pc3 +pm/r2To+Gl5cXMMz/zKFShuviGp/F17eS1idpNSFO6ViF+WXrENdESB7E6Dm4teK ++WLdtOHk3exC/+F+YUK3Jh6lTR5+donHaURlKjcKiRY7YxHq9HbrYXujJyiuU51a +nDvV20AWy7cKGGPRpV8YSoNGxE24WpWjjf0l++aFSpQaKanoV9tL4ZI0aXMFawSB +4YKBjtht6Cxm37oeBaimUKxA7BKH/DUueQsjAfw0WgZhItBDEtKjs2tMkOj/VUuF 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b/utils/tcp_connection/tcp_connection_test/src/lib.rs new file mode 100644 index 0000000..c9372d4 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/lib.rs @@ -0,0 +1,17 @@ +#[cfg(test)] +pub mod test_tcp_target_build; + +#[cfg(test)] +pub mod test_connection; + +#[cfg(test)] +pub mod test_challenge; + +#[cfg(test)] +pub mod test_file_transfer; + +#[cfg(test)] +pub mod test_msgpack; + +pub mod test_utils; +pub use test_utils::*; diff --git a/utils/tcp_connection/tcp_connection_test/src/test_challenge.rs b/utils/tcp_connection/tcp_connection_test/src/test_challenge.rs new file mode 100644 index 0000000..9327b3e --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_challenge.rs @@ -0,0 +1,160 @@ +use std::{env::current_dir, time::Duration}; + +use tcp_connection::instance::ConnectionInstance; +use tokio::{ + join, + time::{sleep, timeout}, +}; + +use crate::test_utils::{ + handle::{ClientHandle, ServerHandle}, + target::TcpServerTarget, + target_configure::ServerTargetConfig, +}; + +pub(crate) struct ExampleChallengeClientHandle; + +impl ClientHandle<ExampleChallengeServerHandle> for ExampleChallengeClientHandle { + async fn process(mut instance: ConnectionInstance) { + // Accept challenge with correct key + let key = current_dir() + .unwrap() + .join("res") + .join("key") + .join("test_key_private.pem"); + let result = instance.accept_challenge(key, "test_key").await.unwrap(); + + // Sent success + assert!(result); + let response = instance.read_text().await.unwrap(); + + // Verify success + assert_eq!("OK", response); + + // Accept challenge with wrong key + let key = current_dir() + .unwrap() + .join("res") + .join("key") + .join("wrong_key_private.pem"); + let result = instance.accept_challenge(key, "test_key").await.unwrap(); + + // Sent success + assert!(result); + let response = instance.read_text().await.unwrap(); + + // Verify fail + assert_eq!("ERROR", response); + + // Accept challenge with wrong name + let key = current_dir() + .unwrap() + .join("res") + .join("key") + .join("test_key_private.pem"); + let result = instance.accept_challenge(key, "test_key__").await.unwrap(); + + // Sent success + assert!(result); + let response = instance.read_text().await.unwrap(); + + // Verify fail + assert_eq!("ERROR", response); + } +} + +pub(crate) struct ExampleChallengeServerHandle; + +impl ServerHandle<ExampleChallengeClientHandle> for ExampleChallengeServerHandle { + async fn process(mut instance: ConnectionInstance) { + // Challenge with correct key + let key_dir = current_dir().unwrap().join("res").join("key"); + let (result, key_id) = instance.challenge(key_dir).await.unwrap(); + assert!(result); + assert_eq!(key_id, "test_key"); + + // Send response + instance + .write_text(if result { "OK" } else { "ERROR" }) + .await + .unwrap(); + + // Challenge again + let key_dir = current_dir().unwrap().join("res").join("key"); + let (result, key_id) = instance.challenge(key_dir).await.unwrap(); + assert!(!result); + assert_eq!(key_id, "test_key"); + + // Send response + instance + .write_text(if result { "OK" } else { "ERROR" }) + .await + .unwrap(); + + // Challenge again + let key_dir = current_dir().unwrap().join("res").join("key"); + let (result, key_id) = instance.challenge(key_dir).await.unwrap(); + assert!(!result); + assert_eq!(key_id, "test_key__"); + + // Send response + instance + .write_text(if result { "OK" } else { "ERROR" }) + .await + .unwrap(); + } +} + +#[tokio::test] +async fn test_connection_with_challenge_handle() -> Result<(), std::io::Error> { + let host = "localhost:5011"; + + // Server setup + let Ok(server_target) = TcpServerTarget::< + ExampleChallengeClientHandle, + ExampleChallengeServerHandle, + >::from_domain(host) + .await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + // Client setup + let Ok(client_target) = TcpServerTarget::< + ExampleChallengeClientHandle, + ExampleChallengeServerHandle, + >::from_domain(host) + .await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + let future_server = async move { + // Only process once + let configured_server = server_target.server_cfg(ServerTargetConfig::default().once()); + + // Listen here + let _ = configured_server.listen().await; + }; + + let future_client = async move { + // Wait for server start + let _ = sleep(Duration::from_secs_f32(1.5)).await; + + // Connect here + let _ = client_target.connect().await; + }; + + let test_timeout = Duration::from_secs(10); + + timeout(test_timeout, async { join!(future_client, future_server) }) + .await + .map_err(|_| { + std::io::Error::new( + std::io::ErrorKind::TimedOut, + format!("Test timed out after {:?}", test_timeout), + ) + })?; + + Ok(()) +} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_connection.rs b/utils/tcp_connection/tcp_connection_test/src/test_connection.rs new file mode 100644 index 0000000..8c3ab01 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_connection.rs @@ -0,0 +1,78 @@ +use std::time::Duration; + +use tcp_connection::instance::ConnectionInstance; +use tokio::{join, time::sleep}; + +use crate::test_utils::{ + handle::{ClientHandle, ServerHandle}, + target::TcpServerTarget, + target_configure::ServerTargetConfig, +}; + +pub(crate) struct ExampleClientHandle; + +impl ClientHandle<ExampleServerHandle> for ExampleClientHandle { + async fn process(mut instance: ConnectionInstance) { + // Write name + let Ok(_) = instance.write_text("Peter").await else { + panic!("Write text failed!"); + }; + // Read msg + let Ok(result) = instance.read_text().await else { + return; + }; + assert_eq!("Hello Peter!", result); + } +} + +pub(crate) struct ExampleServerHandle; + +impl ServerHandle<ExampleClientHandle> for ExampleServerHandle { + async fn process(mut instance: ConnectionInstance) { + // Read name + let Ok(name) = instance.read_text().await else { + return; + }; + // Write msg + let Ok(_) = instance.write_text(format!("Hello {}!", name)).await else { + panic!("Write text failed!"); + }; + } +} + +#[tokio::test] +async fn test_connection_with_example_handle() { + let host = "localhost:5012"; + + // Server setup + let Ok(server_target) = + TcpServerTarget::<ExampleClientHandle, ExampleServerHandle>::from_domain(host).await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + // Client setup + let Ok(client_target) = + TcpServerTarget::<ExampleClientHandle, ExampleServerHandle>::from_domain(host).await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + let future_server = async move { + // Only process once + let configured_server = server_target.server_cfg(ServerTargetConfig::default().once()); + + // Listen here + let _ = configured_server.listen().await; + }; + + let future_client = async move { + // Wait for server start + let _ = sleep(Duration::from_secs_f32(1.5)).await; + + // Connect here + let _ = client_target.connect().await; + }; + + let _ = async { join!(future_client, future_server) }.await; +} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_file_transfer.rs b/utils/tcp_connection/tcp_connection_test/src/test_file_transfer.rs new file mode 100644 index 0000000..4237ea7 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_file_transfer.rs @@ -0,0 +1,94 @@ +use std::{env::current_dir, time::Duration}; + +use tcp_connection::instance::ConnectionInstance; +use tokio::{ + join, + time::{sleep, timeout}, +}; + +use crate::test_utils::{ + handle::{ClientHandle, ServerHandle}, + target::TcpServerTarget, + target_configure::ServerTargetConfig, +}; + +pub(crate) struct ExampleFileTransferClientHandle; + +impl ClientHandle<ExampleFileTransferServerHandle> for ExampleFileTransferClientHandle { + async fn process(mut instance: ConnectionInstance) { + let image_path = current_dir() + .unwrap() + .join("res") + .join("image") + .join("test_transfer.png"); + instance.write_file(image_path).await.unwrap(); + } +} + +pub(crate) struct ExampleFileTransferServerHandle; + +impl ServerHandle<ExampleFileTransferClientHandle> for ExampleFileTransferServerHandle { + async fn process(mut instance: ConnectionInstance) { + let save_path = current_dir() + .unwrap() + .join("res") + .join(".temp") + .join("image") + .join("test_transfer.png"); + instance.read_file(save_path).await.unwrap(); + } +} + +#[tokio::test] +async fn test_connection_with_challenge_handle() -> Result<(), std::io::Error> { + let host = "localhost:5010"; + + // Server setup + let Ok(server_target) = TcpServerTarget::< + ExampleFileTransferClientHandle, + ExampleFileTransferServerHandle, + >::from_domain(host) + .await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + // Client setup + let Ok(client_target) = TcpServerTarget::< + ExampleFileTransferClientHandle, + ExampleFileTransferServerHandle, + >::from_domain(host) + .await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + let future_server = async move { + // Only process once + let configured_server = server_target.server_cfg(ServerTargetConfig::default().once()); + + // Listen here + let _ = configured_server.listen().await; + }; + + let future_client = async move { + // Wait for server start + let _ = sleep(Duration::from_secs_f32(1.5)).await; + + // Connect here + let _ = client_target.connect().await; + }; + + let test_timeout = Duration::from_secs(10); + + timeout(test_timeout, async { join!(future_client, future_server) }) + .await + .map_err(|_| { + std::io::Error::new( + std::io::ErrorKind::TimedOut, + format!("Test timed out after {:?}", test_timeout), + ) + })?; + + Ok(()) +} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_msgpack.rs b/utils/tcp_connection/tcp_connection_test/src/test_msgpack.rs new file mode 100644 index 0000000..4c9c870 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_msgpack.rs @@ -0,0 +1,103 @@ +use serde::{Deserialize, Serialize}; +use std::time::Duration; +use tcp_connection::instance::ConnectionInstance; +use tokio::{join, time::sleep}; + +use crate::test_utils::{ + handle::{ClientHandle, ServerHandle}, + target::TcpServerTarget, + target_configure::ServerTargetConfig, +}; + +#[derive(Debug, PartialEq, Serialize, Deserialize, Default)] +struct TestData { + id: u32, + name: String, +} + +pub(crate) struct MsgPackClientHandle; + +impl ClientHandle<MsgPackServerHandle> for MsgPackClientHandle { + async fn process(mut instance: ConnectionInstance) { + // Test basic MessagePack serialization + let test_data = TestData { + id: 42, + name: "Test MessagePack".to_string(), + }; + + // Write MessagePack data + if let Err(e) = instance.write_msgpack(&test_data).await { + panic!("Write MessagePack failed: {}", e); + } + + // Read response + let response: TestData = match instance.read_msgpack().await { + Ok(data) => data, + Err(e) => panic!("Read MessagePack response failed: {}", e), + }; + + // Verify response + assert_eq!(response.id, test_data.id * 2); + assert_eq!(response.name, format!("Processed: {}", test_data.name)); + } +} + +pub(crate) struct MsgPackServerHandle; + +impl ServerHandle<MsgPackClientHandle> for MsgPackServerHandle { + async fn process(mut instance: ConnectionInstance) { + // Read MessagePack data + let received_data: TestData = match instance.read_msgpack().await { + Ok(data) => data, + Err(_) => return, + }; + + // Process data + let response = TestData { + id: received_data.id * 2, + name: format!("Processed: {}", received_data.name), + }; + + // Write response as MessagePack + if let Err(e) = instance.write_msgpack(&response).await { + panic!("Write MessagePack response failed: {}", e); + } + } +} + +#[tokio::test] +async fn test_msgpack_basic() { + let host = "localhost:5013"; + + // Server setup + let Ok(server_target) = + TcpServerTarget::<MsgPackClientHandle, MsgPackServerHandle>::from_domain(host).await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + // Client setup + let Ok(client_target) = + TcpServerTarget::<MsgPackClientHandle, MsgPackServerHandle>::from_domain(host).await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + let future_server = async move { + // Only process once + let configured_server = server_target.server_cfg(ServerTargetConfig::default().once()); + + // Listen here + let _ = configured_server.listen().await; + }; + + let future_client = async move { + // Wait for server start + let _ = sleep(Duration::from_secs_f32(1.5)).await; + + // Connect here + let _ = client_target.connect().await; + }; + + let _ = async { join!(future_client, future_server) }.await; +} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_tcp_target_build.rs b/utils/tcp_connection/tcp_connection_test/src/test_tcp_target_build.rs new file mode 100644 index 0000000..aa1ec74 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_tcp_target_build.rs @@ -0,0 +1,32 @@ +use crate::{ + test_connection::{ExampleClientHandle, ExampleServerHandle}, + test_utils::target::TcpServerTarget, +}; + +#[test] +fn test_tcp_test_target_build() { + let host = "127.0.0.1:8080"; + + // Test build target by string + let Ok(target) = + TcpServerTarget::<ExampleClientHandle, ExampleServerHandle>::from_address_str(host) + else { + panic!("Test target built failed from a target addr `{}`", host); + }; + assert_eq!(target.to_string(), "127.0.0.1:8080"); +} + +#[tokio::test] +async fn test_tcp_test_target_build_domain() { + let host = "localhost"; + + // Test build target by DomainName and Connection + let Ok(target) = + TcpServerTarget::<ExampleClientHandle, ExampleServerHandle>::from_domain(host).await + else { + panic!("Test target built failed from a domain named `{}`", host); + }; + + // Test into string + assert_eq!(target.to_string(), "127.0.0.1:8080"); +} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_utils.rs b/utils/tcp_connection/tcp_connection_test/src/test_utils.rs new file mode 100644 index 0000000..badf27d --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_utils.rs @@ -0,0 +1,4 @@ +pub mod handle; +pub mod target; +pub mod target_configure; +pub mod target_connection; diff --git a/utils/tcp_connection/tcp_connection_test/src/test_utils/handle.rs b/utils/tcp_connection/tcp_connection_test/src/test_utils/handle.rs new file mode 100644 index 0000000..4f9bdbb --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_utils/handle.rs @@ -0,0 +1,11 @@ +use std::future::Future; + +use tcp_connection::instance::ConnectionInstance; + +pub trait ClientHandle<RequestServer> { + fn process(instance: ConnectionInstance) -> impl Future<Output = ()> + Send; +} + +pub trait ServerHandle<RequestClient> { + fn process(instance: ConnectionInstance) -> impl Future<Output = ()> + Send; +} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_utils/target.rs b/utils/tcp_connection/tcp_connection_test/src/test_utils/target.rs new file mode 100644 index 0000000..8972b2a --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_utils/target.rs @@ -0,0 +1,201 @@ +use serde::{Deserialize, Serialize}; +use std::{ + fmt::{Display, Formatter}, + marker::PhantomData, + net::{AddrParseError, IpAddr, Ipv4Addr, SocketAddr}, + str::FromStr, +}; +use tokio::net::lookup_host; + +use crate::test_utils::{ + handle::{ClientHandle, ServerHandle}, + target_configure::{ClientTargetConfig, ServerTargetConfig}, +}; + +const DEFAULT_PORT: u16 = 8080; + +#[derive(Debug, Serialize, Deserialize)] +pub struct TcpServerTarget<Client, Server> +where + Client: ClientHandle<Server>, + Server: ServerHandle<Client>, +{ + /// Client Config + client_cfg: Option<ClientTargetConfig>, + + /// Server Config + server_cfg: Option<ServerTargetConfig>, + + /// Server port + port: u16, + + /// Bind addr + bind_addr: IpAddr, + + /// Client Phantom Data + _client: PhantomData<Client>, + + /// Server Phantom Data + _server: PhantomData<Server>, +} + +impl<Client, Server> Default for TcpServerTarget<Client, Server> +where + Client: ClientHandle<Server>, + Server: ServerHandle<Client>, +{ + fn default() -> Self { + Self { + client_cfg: None, + server_cfg: None, + port: DEFAULT_PORT, + bind_addr: IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), + _client: PhantomData, + _server: PhantomData, + } + } +} + +impl<Client, Server> From<SocketAddr> for TcpServerTarget<Client, Server> +where + Client: ClientHandle<Server>, + Server: ServerHandle<Client>, +{ + /// Convert SocketAddr to TcpServerTarget + fn from(value: SocketAddr) -> Self { + Self { + port: value.port(), + bind_addr: value.ip(), + ..Self::default() + } + } +} + +impl<Client, Server> From<TcpServerTarget<Client, Server>> for SocketAddr +where + Client: ClientHandle<Server>, + Server: ServerHandle<Client>, +{ + /// Convert TcpServerTarget to SocketAddr + fn from(val: TcpServerTarget<Client, Server>) -> Self { + SocketAddr::new(val.bind_addr, val.port) + } +} + +impl<Client, Server> Display for TcpServerTarget<Client, Server> +where + Client: ClientHandle<Server>, + Server: ServerHandle<Client>, +{ + fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { + write!(f, "{}:{}", self.bind_addr, self.port) + } +} + +impl<Client, Server> TcpServerTarget<Client, Server> +where + Client: ClientHandle<Server>, + Server: ServerHandle<Client>, +{ + /// Create target by address + pub fn from_addr(addr: impl Into<IpAddr>, port: impl Into<u16>) -> Self { + Self { + port: port.into(), + bind_addr: addr.into(), + ..Self::default() + } + } + + /// Try to create target by string + pub fn from_address_str<'a>(addr_str: impl Into<&'a str>) -> Result<Self, AddrParseError> { + let socket_addr = SocketAddr::from_str(addr_str.into()); + match socket_addr { + Ok(socket_addr) => Ok(Self::from_addr(socket_addr.ip(), socket_addr.port())), + Err(err) => Err(err), + } + } + + /// Try to create target by domain name + pub async fn from_domain<'a>(domain: impl Into<&'a str>) -> Result<Self, std::io::Error> { + match domain_to_addr(domain).await { + Ok(domain_addr) => Ok(Self::from(domain_addr)), + Err(e) => Err(e), + } + } + + /// Set client config + pub fn client_cfg(mut self, config: ClientTargetConfig) -> Self { + self.client_cfg = Some(config); + self + } + + /// Set server config + pub fn server_cfg(mut self, config: ServerTargetConfig) -> Self { + self.server_cfg = Some(config); + self + } + + /// Add client config + pub fn add_client_cfg(&mut self, config: ClientTargetConfig) { + self.client_cfg = Some(config); + } + + /// Add server config + pub fn add_server_cfg(&mut self, config: ServerTargetConfig) { + self.server_cfg = Some(config); + } + + /// Get client config ref + pub fn get_client_cfg(&self) -> Option<&ClientTargetConfig> { + self.client_cfg.as_ref() + } + + /// Get server config ref + pub fn get_server_cfg(&self) -> Option<&ServerTargetConfig> { + self.server_cfg.as_ref() + } + + /// Get SocketAddr of TcpServerTarget + pub fn get_addr(&self) -> SocketAddr { + SocketAddr::new(self.bind_addr, self.port) + } +} + +/// Parse Domain Name to IpAddr via DNS +async fn domain_to_addr<'a>(domain: impl Into<&'a str>) -> Result<SocketAddr, std::io::Error> { + let domain = domain.into(); + let default_port: u16 = DEFAULT_PORT; + + if let Ok(socket_addr) = domain.parse::<SocketAddr>() { + return Ok(match socket_addr.ip() { + IpAddr::V4(_) => socket_addr, + IpAddr::V6(_) => SocketAddr::new(IpAddr::V4(Ipv4Addr::LOCALHOST), socket_addr.port()), + }); + } + + if let Ok(_v6_addr) = domain.parse::<std::net::Ipv6Addr>() { + return Ok(SocketAddr::new( + IpAddr::V4(Ipv4Addr::LOCALHOST), + default_port, + )); + } + + let (host, port_str) = if let Some((host, port)) = domain.rsplit_once(':') { + (host.trim_matches(|c| c == '[' || c == ']'), Some(port)) + } else { + (domain, None) + }; + + let port = port_str + .and_then(|p| p.parse::<u16>().ok()) + .map(|p| p.clamp(0, u16::MAX)) + .unwrap_or(default_port); + + let mut socket_iter = lookup_host((host, 0)).await?; + + if let Some(addr) = socket_iter.find(|addr| addr.is_ipv4()) { + return Ok(SocketAddr::new(addr.ip(), port)); + } + + Ok(SocketAddr::new(IpAddr::V4(Ipv4Addr::LOCALHOST), port)) +} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_utils/target_configure.rs b/utils/tcp_connection/tcp_connection_test/src/test_utils/target_configure.rs new file mode 100644 index 0000000..d739ac9 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_utils/target_configure.rs @@ -0,0 +1,53 @@ +use serde::{Deserialize, Serialize}; + +#[derive(Default, Debug, Clone, Copy, Serialize, Deserialize)] +pub struct ServerTargetConfig { + /// Only process a single connection, then shut down the server. + once: bool, + + /// Timeout duration in milliseconds. (0 is Closed) + timeout: u64, +} + +impl ServerTargetConfig { + /// Set `once` to True + /// This method configures the `once` field of `ServerTargetConfig`. + pub fn once(mut self) -> Self { + self.once = true; + self + } + + /// Set `timeout` to the given value + /// This method configures the `timeout` field of `ServerTargetConfig`. + pub fn timeout(mut self, timeout: u64) -> Self { + self.timeout = timeout; + self + } + + /// Set `once` to the given value + /// This method configures the `once` field of `ServerTargetConfig`. + pub fn set_once(&mut self, enable: bool) { + self.once = enable; + } + + /// Set `timeout` to the given value + /// This method configures the `timeout` field of `ServerTargetConfig`. + pub fn set_timeout(&mut self, timeout: u64) { + self.timeout = timeout; + } + + /// Check if the server is configured to process only a single connection. + /// Returns `true` if the server will shut down after processing one connection. + pub fn is_once(&self) -> bool { + self.once + } + + /// Get the current timeout value in milliseconds. + /// Returns the timeout duration. A value of 0 indicates the connection is closed. + pub fn get_timeout(&self) -> u64 { + self.timeout + } +} + +#[derive(Default, Debug, Clone, Copy, Serialize, Deserialize)] +pub struct ClientTargetConfig {} diff --git a/utils/tcp_connection/tcp_connection_test/src/test_utils/target_connection.rs b/utils/tcp_connection/tcp_connection_test/src/test_utils/target_connection.rs new file mode 100644 index 0000000..d5bf2c3 --- /dev/null +++ b/utils/tcp_connection/tcp_connection_test/src/test_utils/target_connection.rs @@ -0,0 +1,89 @@ +use tcp_connection::{error::TcpTargetError, instance::ConnectionInstance}; +use tokio::{ + net::{TcpListener, TcpSocket}, + spawn, +}; + +use crate::test_utils::{ + handle::{ClientHandle, ServerHandle}, + target::TcpServerTarget, + target_configure::ServerTargetConfig, +}; + +impl<Client, Server> TcpServerTarget<Client, Server> +where + Client: ClientHandle<Server>, + Server: ServerHandle<Client>, +{ + /// Attempts to establish a connection to the TCP server. + /// + /// This function initiates a connection to the server address + /// specified in the target configuration. + /// + /// This is a Block operation. + pub async fn connect(&self) -> Result<(), TcpTargetError> { + let addr = self.get_addr(); + let Ok(socket) = TcpSocket::new_v4() else { + return Err(TcpTargetError::from("Create tcp socket failed!")); + }; + let stream = match socket.connect(addr).await { + Ok(stream) => stream, + Err(e) => { + let err = format!("Connect to `{}` failed: {}", addr, e); + return Err(TcpTargetError::from(err)); + } + }; + let instance = ConnectionInstance::from(stream); + Client::process(instance).await; + Ok(()) + } + + /// Attempts to establish a connection to the TCP server. + /// + /// This function initiates a connection to the server address + /// specified in the target configuration. + pub async fn listen(&self) -> Result<(), TcpTargetError> { + let addr = self.get_addr(); + let listener = match TcpListener::bind(addr).await { + Ok(listener) => listener, + Err(_) => { + let err = format!("Bind to `{}` failed", addr); + return Err(TcpTargetError::from(err)); + } + }; + + let cfg: ServerTargetConfig = match self.get_server_cfg() { + Some(cfg) => *cfg, + None => ServerTargetConfig::default(), + }; + + if cfg.is_once() { + // Process once (Blocked) + let (stream, _) = match listener.accept().await { + Ok(result) => result, + Err(e) => { + let err = format!("Accept connection failed: {}", e); + return Err(TcpTargetError::from(err)); + } + }; + let instance = ConnectionInstance::from(stream); + Server::process(instance).await; + } else { + loop { + // Process multiple times (Concurrent) + let (stream, _) = match listener.accept().await { + Ok(result) => result, + Err(e) => { + let err = format!("Accept connection failed: {}", e); + return Err(TcpTargetError::from(err)); + } + }; + let instance = ConnectionInstance::from(stream); + spawn(async move { + Server::process(instance).await; + }); + } + } + Ok(()) + } +} |
