8 files changed, 77 insertions, 21 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 5261edf..4b5d730 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1837,7 +1837,7 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "webol"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "axum",
  "axum-macros",
diff --git a/Cargo.toml b/Cargo.toml
index 1b7db8e..68ba060 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "webol"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/README.md b/README.md
index 03779a1..e84d646 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,4 @@
 # webol
-
 ## Config
 Default `config.toml`:
 ```toml
@@ -12,9 +11,7 @@ timeoffset = 0 # i8
 method = "none" # "none"|"key"
 secret = "" # String
 ```
-
 ## Docker
-
 minimal `docker-compose.yaml`:
 ```yaml
 services:
@@ -27,3 +24,44 @@ services:
       - ./logs:/logs
     network_mode: host
 ```
+# Usage
+## Register Device
+A device is registered with a PUT request to the server with a JSON representation of the device as payload.
+| field        | description                                                            | example           |
+|--------------|------------------------------------------------------------------------|-------------------|
+| server-ip    | ip of the webol server, including its port                             | webol.local:7229  |
+| secret       | secret set in the server settings                                      | password          |
+| device-id    | any string, "name" of the device                                       | foo               |
+| mac-address  | mac address of the device                                              | 12:34:56:AB:CD:EF |
+| broadcast-ip | broadcast ip of the network, including the port Wake-on-Lan listens on | 10.0.1.255:7      |
+| device-ip    | (**optional**) ip of the device, used for ping feature                 | 10.0.1.47         |
+
+Examples using curl with and without authentification enabled on the server.
+### With Authentification
+```sh
+curl -X PUT http://<server-ip>/device \
+  -H 'Authorization: <secret>' \
+  -H 'Content-Type: application/json' \
+  -d '{
+        "id": "<device-id>",
+        "mac": "<mac-address>",
+        "broadcast_addr": "<broadcast-ip>",
+        "ip": "<device-ip>"
+  }'
+```
+### Without Authentification
+```sh
+curl -X PUT http://<server-ip>/device \
+  -H 'Content-Type: application/json' \
+  -d '{
+        "id": "<device-id>",
+        "mac": "<mac-address>",
+        "broadcast_addr": "<broadcast-ip>",
+        "ip": "<device-ip>"
+  }'
+```
+## Start Device
+The easiest way to start a device is using a GET request with its id:
+```sh
+curl http://<server-ip>/start/<device-id>
+```
\ No newline at end of file
diff --git a/src/error.rs b/src/error.rs
index 2d70592..b8a078b 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -46,11 +46,13 @@ pub enum Error {
         #[from]
         source: io::Error,
     },
+
+    #[error("No ip set for device but ping requested")]
+    NoIpOnPing,
 }
 
 impl IntoResponse for Error {
     fn into_response(self) -> Response {
-        // error!("{}", self.to_string());
         let (status, error_message) = match self {
             Self::Json { source } => {
                 error!("{source}");
@@ -80,6 +82,10 @@ impl IntoResponse for Error {
             Self::IpParse { source } => {
                 error!("{source}");
                 (StatusCode::INTERNAL_SERVER_ERROR, "Server Error")
+            },
+            Self::NoIpOnPing => {
+                error!("Ping requested but no ip given");
+                (StatusCode::BAD_REQUEST, "No Ip saved for requested device, but device started")
             }
         };
         let body = Json(json!({
diff --git a/src/routes/device.rs b/src/routes/device.rs
index 49361f2..f767eab 100644
--- a/src/routes/device.rs
+++ b/src/routes/device.rs
@@ -36,7 +36,7 @@ pub struct DPayload {
     id: String,
     mac: String,
     broadcast_addr: String,
-    ip: String,
+    ip: Option<String>,
 }
 
 #[utoipa::path(
@@ -48,15 +48,17 @@ pub struct DPayload {
     ),
     security((), ("api_key" = []))
 )]
-pub async fn put(
-    Json(payload): Json<DPayload>,
-) -> Result<Json<Value>, Error> {
+pub async fn put(Json(payload): Json<DPayload>) -> Result<Json<Value>, Error> {
     info!(
-        "add device {} ({}, {}, {})",
+        "add device {} ({}, {}, {:?})",
         payload.id, payload.mac, payload.broadcast_addr, payload.ip
     );
 
-    let ip = IpNetwork::from_str(&payload.ip)?;
+    let ip = if let Some(ip_s) = payload.ip {
+        Some(IpNetwork::from_str(&ip_s)?)
+    } else {
+        None
+    };
     let mac = MacAddress::from_str(&payload.mac)?;
     let device = Device {
         id: payload.id,
@@ -79,14 +81,17 @@ pub async fn put(
     ),
     security((), ("api_key" = []))
 )]
-pub async fn post(
-    Json(payload): Json<DPayload>,
-) -> Result<Json<Value>, Error> {
+pub async fn post(Json(payload): Json<DPayload>) -> Result<Json<Value>, Error> {
     info!(
-        "edit device {} ({}, {}, {})",
+        "edit device {} ({}, {}, {:?})",
         payload.id, payload.mac, payload.broadcast_addr, payload.ip
     );
-    let ip = IpNetwork::from_str(&payload.ip)?;
+
+    let ip = if let Some(ip_s) = payload.ip {
+        Some(IpNetwork::from_str(&ip_s)?)
+    } else {
+        None
+    };
     let mac = MacAddress::from_str(&payload.mac)?;
     let times = Device::read(&payload.id)?.times;
 
diff --git a/src/routes/start.rs b/src/routes/start.rs
index bbc6ab8..192a54a 100644
--- a/src/routes/start.rs
+++ b/src/routes/start.rs
@@ -69,6 +69,9 @@ fn send_wol(
     let dev_id = device.id.clone();
     let uuid = if let Some(pl) = payload {
         if pl.ping.is_some_and(|ping| ping) {
+            if device.ip.is_none() {
+                return Err(Error::NoIpOnPing);
+            }
             Some(setup_ping(state, device))
         } else {
             None
@@ -86,8 +89,10 @@ fn send_wol(
 
 fn setup_ping(state: Arc<crate::AppState>, device: Device) -> String {
     let mut uuid: Option<String> = None;
+    // Safe: Only called when ip is set
+    let ip = device.ip.unwrap();
     for (key, value) in state.ping_map.clone() {
-        if value.ip == device.ip {
+        if value.ip == ip {
             debug!("service already exists");
             uuid = Some(key);
             break;
@@ -103,7 +108,7 @@ fn setup_ping(state: Arc<crate::AppState>, device: Device) -> String {
     state.ping_map.insert(
         uuid_gen.clone(),
         PingValue {
-            ip: device.ip,
+            ip,
             eta: get_eta(device.clone().times),
             online: false,
         },
diff --git a/src/services/ping.rs b/src/services/ping.rs
index 1bf022d..4e0ffcf 100644
--- a/src/services/ping.rs
+++ b/src/services/ping.rs
@@ -28,7 +28,9 @@ pub async fn spawn(
 
     let mut msg: Option<BroadcastCommand> = None;
     while msg.is_none() {
-        let ping = surge_ping::ping(device.ip.ip(), &payload).await;
+        // Safe: Only called when ip is set
+        let ip = device.ip.unwrap();
+        let ping = surge_ping::ping(ip.ip(), &payload).await;
 
         if let Err(ping) = ping {
             let ping_timeout = matches!(ping, surge_ping::SurgeError::Timeout { .. });
diff --git a/src/storage.rs b/src/storage.rs
index 0da245b..52c2e60 100644
--- a/src/storage.rs
+++ b/src/storage.rs
@@ -18,7 +18,7 @@ pub struct Device {
     pub id: String,
     pub mac: MacAddress,
     pub broadcast_addr: String,
-    pub ip: IpNetwork,
+    pub ip: Option<IpNetwork>,
     pub times: Option<Vec<i64>>,
 }