Use consistent naming for error types

src/client.rs

@@ -33,12 +33,12 @@
 //! }
 //! ```
 
-use std::error::Error;
+use std::error::Error as StdError;
 use std::net::SocketAddr;
 
 use crate::common::{Certificate, NoExtension, PrivateKey};
 use crate::connection::EppConnection;
-use crate::error;
+use crate::error::Error;
 use crate::hello::{Greeting, GreetingDocument, HelloDocument};
 use crate::request::{Command, Extension, Transaction};
 use crate::response::Response;
@@ -59,14 +59,14 @@ impl EppClient {
         addr: SocketAddr,
         hostname: &str,
         identity: Option<(Vec<Certificate>, PrivateKey)>,
-    ) -> Result<Self, Box<dyn Error>> {
+    ) -> Result<Self, Box<dyn StdError>> {
         Ok(Self {
             connection: EppConnection::connect(registry, addr, hostname, identity).await?,
         })
     }
 
     /// Executes an EPP Hello call and returns the response as an `Greeting`
-    pub async fn hello(&mut self) -> Result<Greeting, Box<dyn Error>> {
+    pub async fn hello(&mut self) -> Result<Greeting, Box<dyn StdError>> {
         let hello_xml = HelloDocument::default().serialize()?;
 
         let response = self.connection.transact(&hello_xml).await?;
@@ -78,7 +78,7 @@ impl EppClient {
         &mut self,
         data: impl Into<RequestData<'a, C, E>> + 'a,
         id: &str,
-    ) -> Result<Response<C::Response, E::Response>, error::Error>
+    ) -> Result<Response<C::Response, E::Response>, Error>
     where
         C: Transaction<E> + Command,
         E: Extension,
@@ -93,7 +93,7 @@ impl EppClient {
 
     /// Accepts raw EPP XML and returns the raw EPP XML response to it.
     /// Not recommended for direct use but sometimes can be useful for debugging
-    pub async fn transact_xml(&mut self, xml: &str) -> Result<String, Box<dyn Error>> {
+    pub async fn transact_xml(&mut self, xml: &str) -> Result<String, Box<dyn StdError>> {
         self.connection.transact(xml).await
     }
 
@@ -103,11 +103,11 @@ impl EppClient {
     }
 
     /// Returns the greeting received on establishment of the connection as an `Greeting`
-    pub fn greeting(&self) -> Result<Greeting, error::Error> {
+    pub fn greeting(&self) -> Result<Greeting, Error> {
         GreetingDocument::deserialize(&self.connection.greeting).map(|obj| obj.data)
     }
 
-    pub async fn shutdown(mut self) -> Result<(), Box<dyn Error>> {
+    pub async fn shutdown(mut self) -> Result<(), Box<dyn StdError>> {
         self.connection.shutdown().await
     }
 }

src/connection.rs

@@ -1,9 +1,9 @@
 //! Manages registry connections and reading/writing to them
 
 use std::convert::TryInto;
+use std::error::Error as StdError;
 use std::net::SocketAddr;
 use std::sync::Arc;
-use std::{error::Error, io as stdio};
 use std::{io, str, u32};
 
 use rustls::{OwnedTrustAnchor, RootCertStore};
@@ -12,7 +12,7 @@ use tokio_rustls::{client::TlsStream, rustls::ClientConfig, TlsConnector};
 use tracing::{debug, info};
 
 use crate::common::{Certificate, PrivateKey};
-use crate::error;
+use crate::error::Error;
 
 /// EPP Connection struct with some metadata for the connection
 pub(crate) struct EppConnection {
@@ -28,7 +28,7 @@ impl EppConnection {
         addr: SocketAddr,
         hostname: &str,
         identity: Option<(Vec<Certificate>, PrivateKey)>,
-    ) -> Result<EppConnection, Box<dyn Error>> {
+    ) -> Result<EppConnection, Box<dyn StdError>> {
         let mut stream = epp_connect(addr, hostname, identity).await?;
 
         let mut buf = vec![0u8; 4096];
@@ -45,7 +45,7 @@ impl EppConnection {
     }
 
     /// Constructs an EPP XML request in the required form and sends it to the server
-    async fn send_epp_request(&mut self, content: &str) -> Result<(), Box<dyn Error>> {
+    async fn send_epp_request(&mut self, content: &str) -> Result<(), Box<dyn StdError>> {
         let len = content.len();
 
         let buf_size = len + 4;
@@ -63,7 +63,7 @@ impl EppConnection {
     }
 
     /// Receives response from the socket and converts it into an EPP XML string
-    async fn get_epp_response(&mut self) -> Result<String, Box<dyn Error>> {
+    async fn get_epp_response(&mut self) -> Result<String, Box<dyn StdError>> {
         let mut buf = [0u8; 4];
         self.stream.read_exact(&mut buf).await?;
 
@@ -98,7 +98,7 @@ impl EppConnection {
 
     /// Sends an EPP XML request to the registry and return the response
     /// receieved to the request
-    pub(crate) async fn transact(&mut self, content: &str) -> Result<String, Box<dyn Error>> {
+    pub(crate) async fn transact(&mut self, content: &str) -> Result<String, Box<dyn StdError>> {
         debug!("{}: request: {}", self.registry, content);
         self.send_epp_request(content).await?;
 
@@ -109,7 +109,7 @@ impl EppConnection {
     }
 
     /// Closes the socket and shuts the connection
-    pub(crate) async fn shutdown(&mut self) -> Result<(), Box<dyn Error>> {
+    pub(crate) async fn shutdown(&mut self) -> Result<(), Box<dyn StdError>> {
         info!("{}: Closing connection", self.registry);
 
         self.stream.shutdown().await?;
@@ -123,7 +123,7 @@ async fn epp_connect(
     addr: SocketAddr,
     hostname: &str,
     identity: Option<(Vec<Certificate>, PrivateKey)>,
-) -> Result<TlsStream<TcpStream>, error::Error> {
+) -> Result<TlsStream<TcpStream>, Error> {
     info!("Connecting to server: {:?}", addr,);
 
     let mut roots = RootCertStore::empty();
@@ -147,7 +147,7 @@ async fn epp_connect(
                 .collect();
             builder
                 .with_single_cert(certs, rustls::PrivateKey(key.0))
-                .map_err(|e| error::Error::Other(e.to_string()))?
+                .map_err(|e| Error::Other(e.to_string()))?
         }
         None => builder.with_no_client_auth(),
     };
@@ -156,8 +156,8 @@ async fn epp_connect(
     let stream = TcpStream::connect(&addr).await?;
 
     let domain = hostname.try_into().map_err(|_| {
-        stdio::Error::new(
-            stdio::ErrorKind::InvalidInput,
+        io::Error::new(
+            io::ErrorKind::InvalidInput,
             format!("Invalid domain: {}", hostname),
         )
     })?;

src/error.rs

@@ -1,7 +1,8 @@
 //! Error types to wrap internal errors and make EPP errors easier to read
 
 use std::error::Error as StdError;
-use std::fmt::Display;
+use std::fmt::{self, Display};
+use std::io;
 
 use crate::response::ResponseStatus;
 
@@ -14,10 +15,10 @@ pub enum Error {
     Other(String),
 }
 
-impl std::error::Error for Error {}
+impl StdError for Error {}
 
 impl Display for Error {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             Error::Command(e) => {
                 write!(f, "epp-client EppCommandError: {}", e.result.message)
@@ -28,20 +29,20 @@ impl Display for Error {
     }
 }
 
-impl From<std::boxed::Box<dyn std::error::Error>> for Error {
-    fn from(e: std::boxed::Box<dyn std::error::Error>) -> Self {
+impl From<Box<dyn StdError>> for Error {
+    fn from(e: Box<dyn StdError>) -> Self {
         Self::Other(format!("{:?}", e))
     }
 }
 
-impl From<std::io::Error> for Error {
-    fn from(e: std::io::Error) -> Self {
+impl From<io::Error> for Error {
+    fn from(e: io::Error) -> Self {
         Self::Io(e)
     }
 }
 
-impl From<std::io::ErrorKind> for Error {
-    fn from(e: std::io::ErrorKind) -> Self {
-        Self::Io(std::io::Error::from(e))
+impl From<io::ErrorKind> for Error {
+    fn from(e: io::ErrorKind) -> Self {
+        Self::Io(io::Error::from(e))
     }
 }

src/lib.rs

@@ -90,8 +90,9 @@
 pub mod client;
 pub mod common;
 pub mod connection;
+pub mod contact;
 pub mod domain;
-pub mod error;
+mod error;
 pub mod hello;
 pub mod login;
 pub mod logout;
@@ -99,8 +100,6 @@ pub mod request;
 pub mod response;
 pub mod xml;
 
-pub mod contact;
-
 pub mod extensions {
     pub mod consolidate;
     pub mod namestore;
@@ -123,6 +122,7 @@ pub mod message {
 }
 
 pub use client::EppClient;
+pub use error::Error;
 
 #[cfg(test)]
 pub mod tests;

src/request.rs

@@ -7,6 +7,7 @@ use crate::{
     common::{StringValue, EPP_XMLNS},
     response::{Response, ResponseDocument, ResponseStatus},
     xml::EppXml,
+    Error,
 };
 
 pub const EPP_VERSION: &str = "1.0";
@@ -18,7 +19,7 @@ pub trait Transaction<Ext: Extension>: Command + Sized {
         &self,
         extension: Option<&Ext>,
         client_tr_id: &str,
-    ) -> Result<String, crate::error::Error> {
+    ) -> Result<String, Error> {
         <CommandDocument<Self, Ext> as EppXml>::serialize(&CommandDocument::new(CommandWrapper {
             command: Self::COMMAND,
             data: self,
@@ -29,7 +30,7 @@ pub trait Transaction<Ext: Extension>: Command + Sized {
 
     fn deserialize_response(
         epp_xml: &str,
-    ) -> Result<Response<Self::Response, Ext::Response>, crate::error::Error> {
+    ) -> Result<Response<Self::Response, Ext::Response>, Error> {
         let rsp =
             <ResponseDocument<Self::Response, Ext::Response> as EppXml>::deserialize(epp_xml)?;
         match rsp.data.result.code {