Add actix_support and sort dependencies

Author: kaz9120

Cargo.toml

@@ -14,17 +14,19 @@ categories = ["api-bindings"]
 [features]
 default = []
 rocket_support = ["rocket"]
+actix_support = ["actix-web"]
 
 [dependencies]
-rocket = { version = "0.4", optional = true }
+actix-web = { version = "3", optional = true, default-features = false }
+base64 = "0.9.2"
+bytes = "0.4"
+chrono = "0.4"
+hmac = "0.6.2"
 reqwest = { version = "0.11.0", features = ["blocking", "json"] }
+rocket = { version = "0.4", optional = true }
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
 serde_derive = "1.0.97"
-chrono = "0.4"
-bytes = "0.4"
-base64 = "0.9.2"
-hmac = "0.6.2"
+serde_json = "1.0"
 sha2 = "0.7.1"
 
 [dev-dependencies]

src/support/actix_support.rs

@@ -0,0 +1,29 @@
+use actix_web::dev::Payload;
+use actix_web::{error::ErrorBadRequest, Error, FromRequest, HttpRequest};
+use std::{future::Future, pin::Pin};
+
+#[derive(Debug)]
+pub struct Signature {
+    pub key: String,
+}
+
+impl FromRequest for Signature {
+    type Error = Error;
+    type Future = Pin<Box<dyn Future<Output = Result<Self, Self::Error>>>>;
+    type Config = ();
+
+    fn from_request(req: &HttpRequest, _payload: &mut Payload) -> Self::Future {
+        let res = if let Some(x_line_signature) = req.headers().get("x-line-signature") {
+            if let Ok(key) = x_line_signature.to_str() {
+                Ok(Signature {
+                    key: key.to_string(),
+                })
+            } else {
+                Err(ErrorBadRequest("x-line-signature is missing"))
+            }
+        } else {
+            Err(ErrorBadRequest("x-line-signature is missing"))
+        };
+        Box::pin(async move { res })
+    }
+}

src/support/mod.rs

@@ -2,3 +2,6 @@
 
 #[cfg(feature = "rocket_support")]
 pub mod rocket_support;
+
+#[cfg(feature = "actix_support")]
+pub mod actix_support;