Improve error handling

src/confirmation.rs

@@ -15,18 +15,18 @@ pub fn confirm_action(token: &str) -> Result<(), Error> {
             Err(_) => return Err(Error::Inaccessible),
         }
     } else {
-        return Err(Error::MissingPath);
+        return Err(Error::MissingPending);
     };
     let key = match serde_json::from_str::<Pending>(&content) {
         Ok(key) => key,
-        Err(_) => return Err(Error::ParseStored),
+        Err(_) => return Err(Error::DeserializeData),
     };
     match key.action() {
         Action::Add => {
             let cert = parse_pem(key.data())?;
             let domain = match get_email_from_cert(&cert)?.split('@').last() {
                 Some(domain) => domain.to_string(),
-                None => return Err(Error::MalformedMail),
+                None => return Err(Error::ParseEmail),
             };
             match sequoia_net::wkd::insert(PATH, domain, VARIANT, &cert) {
                 Ok(_) => (),

src/errors.rs

@@ -1,36 +1,34 @@
 use actix_web::http::StatusCode;
 use thiserror::Error;
 
-#[derive(Error, Debug)]
+#[derive(Error, Debug, Clone, Copy)]
 pub enum Error {
     #[error("Error while parsing cert")]
     ParseCert,
-    #[error("Error while parsing E-Mail")]
+    #[error("Error while parsing an E-Mail address")]
-    ParseMail,
+    ParseEmail,
-    #[error("Error while parsing stored data")]
+    #[error("There is no pending request associated to this token")]
-    ParseStored,
+    MissingPending,
+    #[error("Requested key does not exist")]
+    MissingKey,
     #[error("No E-Mail found in the certificate")]
     MissingMail,
-    #[error("The E-Mail is malformed")]
-    MalformedMail,
     #[error("Error while serializing data")]
     SerializeData,
     #[error("Error while deserializing data")]
     DeserializeData,
-    #[error("File or directory does not exist")]
-    MissingPath,
-    #[error("Requested key does not exist")]
-    MissingKey,
     #[error("The file is inaccessible")]
     Inaccessible,
     #[error("Error while adding a key to the wkd")]
     AddingKey,
+    #[error("Error while generating the wkd path")]
+    PathGeneration,
 }
 
 impl actix_web::ResponseError for Error {
     fn status_code(&self) -> actix_web::http::StatusCode {
         match self {
-            Self::MissingPath => StatusCode::from_u16(404).unwrap(),
+            Self::MissingPending => StatusCode::from_u16(404).unwrap(),
             Self::MissingKey => StatusCode::from_u16(404).unwrap(),
             _ => StatusCode::from_u16(500).unwrap(),
         }

src/main.rs

@@ -63,7 +63,7 @@ async fn submit(pem: web::Form<Pem>) -> Result<String> {
     Ok(String::from("Key submitted successfully!"))
 }
 
-#[get("/api/confirm/{data}")]
+#[get("/api/confirm/{value}")]
 async fn confirm(token: web::Path<Token>) -> Result<String> {
     confirm_action(&token.value)?;
     Ok(String::from("Confirmation successfull!"))

src/utils.rs

@@ -32,7 +32,7 @@ pub fn get_email_from_cert(cert: &Cert) -> Result<String, Error> {
     };
     let email_opt = match userid_opt.email() {
         Ok(email_opt) => email_opt,
-        Err(_) => return Err(Error::ParseMail),
+        Err(_) => return Err(Error::ParseCert),
     };
     match email_opt {
         Some(email) => Ok(email),
@@ -43,11 +43,11 @@ pub fn get_email_from_cert(cert: &Cert) -> Result<String, Error> {
 pub fn get_user_file_path(email: &str) -> Result<PathBuf, Error> {
     let wkd_url = match Url::from(email) {
         Ok(wkd_url) => wkd_url,
-        Err(_) => return Err(Error::ParseMail),
+        Err(_) => return Err(Error::PathGeneration),
     };
     match wkd_url.to_file_path(VARIANT) {
         Ok(path) => Ok(path),
-        Err(_) => Err(Error::ParseMail),
+        Err(_) => Err(Error::PathGeneration),
     }
 }