add gitea sig header check, add Json errors, begin AppState

src/errors.rs

@@ -0,0 +1,40 @@
+use axum::response::IntoResponse;
+use reqwest::StatusCode;
+
+#[derive(thiserror::Error, Debug)]
+pub enum AppError {
+    #[error("Malformed Json")]
+    MalformedJsonErr,
+
+    #[error("Json not contains mandatory fields")]
+    BadJsonStructErr,
+
+    #[error("WebHook sig header not found")]
+    WebHookSigHeaderNotFoundErr,
+
+    #[error("WebHook sig header is invalid")]
+    WebHookSigHeaderInvalidErr,
+
+    #[error(transparent)]
+    Other(#[from] anyhow::Error),
+}
+
+impl IntoResponse for AppError {
+    fn into_response(self) -> axum::response::Response {
+        match self {
+            AppError::MalformedJsonErr => (StatusCode::BAD_REQUEST, "Malformed Json"),
+            AppError::BadJsonStructErr => (
+                StatusCode::BAD_REQUEST,
+                "Json not contains mandatory fields",
+            ),
+            AppError::WebHookSigHeaderNotFoundErr => {
+                (StatusCode::BAD_REQUEST, "WebHook sig header not found")
+            }
+            AppError::WebHookSigHeaderInvalidErr => {
+                (StatusCode::BAD_REQUEST, "WebHook sig header is invalid")
+            }
+            AppError::Other(_) => (StatusCode::INTERNAL_SERVER_ERROR, "Internal server error"),
+        }
+        .into_response()
+    }
+}