Improve env var name

Reviewed-on: #10

.drone.yml

@@ -0,0 +1,70 @@
+---
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: web_build
+    image: node:21
+    volumes:
+      - name: web_app
+        path: /tmp/web_build
+    commands:
+      - cd central_frontend
+      - npm install
+      - npm run build
+      - mv dist /tmp/web_build
+
+  - name: backend_check
+    image: rust
+    volumes:
+      - name: rust_registry
+        path: /usr/local/cargo/registry
+    commands:
+      - rustup component add clippy
+      - cd central_backend
+      - cargo clippy -- -D warnings
+      - cargo test
+
+  - name: custom_consumption_check
+    image: rust
+    volumes:
+      - name: rust_registry
+        path: /usr/local/cargo/registry
+    commands:
+      - rustup component add clippy
+      - cd custom_consumption
+      - cargo clippy -- -D warnings
+      - cargo test
+    depends_on:
+      - backend_check
+
+  - name: backend_compile
+    image: rust
+    volumes:
+      - name: rust_registry
+        path: /usr/local/cargo/registry
+      - name: web_app
+        path: /tmp/web_build
+    depends_on:
+      - backend_check
+      - web_build
+    commands:
+      - cd central_backend
+      - mv /tmp/web_build/dist static
+      - cargo build --release
+      - ls -lah target/release/central_backend
+
+  - name: esp32_compile
+    image: espressif/idf:v5.3.1
+    commands:
+      - cd esp32_device
+      - /opt/esp/entrypoint.sh idf.py build
+      - ls -lah build/main.bin
+
+
+volumes:
+  - name: rust_registry
+    temp: {}
+  - name: web_app
+    temp: {}

LICENSE

@@ -0,0 +1,675 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
+

README.md

@@ -1,2 +1,18 @@
 # SolarEnergy
-WIP project
+A project to optimize solar energy production and consumption. It connect to a current meter to decides whether some appliances controlled by relays shall be turned on or not, based on criterias such as:
+* Minimal uptime
+* Minimal downtime
+* Daily minimal runtime
+* Estimated consumption
+* Dependencies, conflicts
+
+## Components
+* [`central_backend`](./central_backend): The core component that connects all the other one and make the decisions to turn on or off devices
+* [`central_frontend`](./central_frontend): Web UI to configure the devices and monitor them
+* [`custom_consumtion`](./custom_consumption): Development tool used to test different production values
+* [`esp32_device`](./esp32_device/): The code installed in the MCU that controls relays (Wt32-Eth01 devices)
+* [`python_device`](./python_device/): An alternative to the esp32 to control relays. Not production ready.
+
+## Documentation
+* [Setup for development](./docs/SETUP_DEV.md) guide
+* [Setup for production](./docs/SETUP_PROD.md) guide

central_backend/Cargo.toml

@@ -7,26 +7,28 @@ edition = "2021"
 log = "0.4.22"
 env_logger = "0.11.5"
 lazy_static = "1.5.0"
-clap = { version = "4.5.18", features = ["derive", "env"] }
+dotenvy = "0.15.7"
+clap = { version = "4.5.20", features = ["derive", "env"] }
 anyhow = "1.0.89"
-thiserror = "1.0.63"
+thiserror = "1.0.64"
 openssl = { version = "0.10.66" }
 openssl-sys = "0.9.102"
-libc = "0.2.158"
+libc = "0.2.159"
 foreign-types-shared = "0.1.1"
 asn1 = "0.17"
 actix-web = { version = "4", features = ["openssl"] }
-futures = "0.3.30"
+futures = "0.3.31"
 serde = { version = "1.0.210", features = ["derive"] }
-reqwest = "0.12.7"
+reqwest = { version = "0.12.7", features = ["json"] }
 serde_json = "1.0.128"
 rand = "0.8.5"
 actix = "0.13.5"
 actix-identity = "0.8.0"
 actix-session = { version = "0.10.1", features = ["cookie-session"] }
 actix-cors = "0.7.0"
+actix-multipart = { version ="0.7.2", features = ["derive"] }
 actix-remote-ip = "0.1.0"
-futures-util = "0.3.30"
+futures-util = "0.3.31"
 uuid = { version = "1.10.0", features = ["v4", "serde"] }
 semver = { version = "1.0.23", features = ["serde"] }
 lazy-regex = "3.3.0"
@@ -39,3 +41,4 @@ prettytable-rs = "0.10.0"
 chrono = "0.4.38"
 serde_yml = "0.0.12"
 bincode = "=2.0.0-rc.3"
+fs4 = { version = "0.10.0", features = ["sync"] }

central_backend/src/app_config.rs

@@ -1,4 +1,5 @@
 use crate::devices::device::{DeviceId, DeviceRelayID};
+use crate::ota::ota_update::OTAPlatform;
 use clap::{Parser, Subcommand};
 use std::path::{Path, PathBuf};
 
@@ -34,12 +35,23 @@ pub enum ConsumptionBackend {
         #[clap(short, long, default_value = "/dev/shm/consumption.txt")]
         path: String,
     },
+
+    /// Fronius inverter consumption
+    Fronius {
+        /// The origin of the domain where the webserver of the Fronius Symo can be reached
+        #[clap(short, long, env = "FRONIUS_ORIG")]
+        origin: String,
+    },
 }
 
 /// Solar system central backend
 #[derive(Parser, Debug)]
 #[command(version, about, long_about = None)]
 pub struct AppConfig {
+    /// Read arguments from env file
+    #[clap(short, long, env)]
+    pub config: Option<String>,
+
     /// Proxy IP, might end with a star "*"
     #[clap(short, long, env)]
     pub proxy_ip: Option<String>,
@@ -106,6 +118,21 @@ lazy_static::lazy_static! {
 }
 
 impl AppConfig {
+    /// Parse environment variables from file, if requedst
+    pub fn parse_env_file() -> anyhow::Result<()> {
+        if let Some(c) = Self::parse().config {
+            log::info!("Load additional environment variables from {c}");
+            let conf_file = Path::new(&c);
+
+            if !conf_file.is_file() {
+                panic!("Specified configuration is not a file!");
+            }
+            dotenvy::from_path(conf_file)?;
+        }
+
+        Ok(())
+    }
+
     /// Get parsed command line arguments
     pub fn get() -> &'static AppConfig {
         &ARGS
@@ -283,6 +310,31 @@ impl AppConfig {
                 }
             ))
     }
+
+    /// Get logs directory
+    pub fn logs_dir(&self) -> PathBuf {
+        self.storage_path().join("logs")
+    }
+
+    /// Get the logs for a given day
+    pub fn log_of_day(&self, day: u64) -> PathBuf {
+        self.logs_dir().join(format!("{day}.log"))
+    }
+
+    /// Get the directory that will store OTA updates
+    pub fn ota_dir(&self) -> PathBuf {
+        self.storage_path().join("ota")
+    }
+
+    /// Get the directory that will store OTA updates for a given platform
+    pub fn ota_platform_dir(&self, platform: OTAPlatform) -> PathBuf {
+        self.ota_dir().join(platform.to_string())
+    }
+
+    /// Get the path to the file that will contain an OTA update
+    pub fn path_ota_update(&self, platform: OTAPlatform, version: &semver::Version) -> PathBuf {
+        self.ota_platform_dir(platform).join(version.to_string())
+    }
 }
 
 #[cfg(test)]

central_backend/src/constants.rs

@@ -13,6 +13,9 @@ pub const MAX_INACTIVITY_DURATION: u64 = 3600;
 /// Maximum session duration (1 day)
 pub const MAX_SESSION_DURATION: u64 = 3600 * 24;
 
+/// Maximum firmware size (in bytes)
+pub const MAX_FIRMWARE_SIZE: usize = 50 * 1000 * 1000;
+
 /// List of routes that do not require authentication
 pub const ROUTES_WITHOUT_AUTH: [&str; 2] =
     ["/web_api/server/config", "/web_api/auth/password_auth"];

central_backend/src/devices/device.rs

@@ -9,9 +9,9 @@ use std::collections::{HashMap, HashSet};
 #[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
 pub struct DeviceInfo {
     /// Device reference
-    reference: String,
+    pub reference: String,
     /// Device firmware / software version
-    version: semver::Version,
+    pub version: semver::Version,
     /// Maximum number of relay that the device can support
     pub max_relays: usize,
 }
@@ -62,6 +62,9 @@ pub struct Device {
     ///
     /// There cannot be more than [info.max_relays] relays
     pub relays: Vec<DeviceRelay>,
+    /// Desired version, ie. the version of the software we would to seen run on the device
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub desired_version: Option<semver::Version>,
 }
 
 /// Structure that contains information about the minimal expected execution

central_backend/src/devices/devices_list.rs

@@ -84,6 +84,7 @@ impl DevicesList {
             validated: false,
             enabled: false,
             relays: vec![],
+            desired_version: None,
         };
 
         // First, write CSR
@@ -186,6 +187,24 @@ impl DevicesList {
         Ok(())
     }
 
+    /// Set a device desired version
+    pub fn set_desired_version(
+        &mut self,
+        id: &DeviceId,
+        version: Option<semver::Version>,
+    ) -> anyhow::Result<()> {
+        let dev = self
+            .0
+            .get_mut(id)
+            .ok_or(DevicesListError::UpdateDeviceFailedDeviceNotFound)?;
+
+        dev.desired_version = version;
+
+        self.persist_dev_config(id)?;
+
+        Ok(())
+    }
+
     /// Get single certificate information
     fn get_cert(&self, id: &DeviceId) -> anyhow::Result<X509> {
         let dev = self

central_backend/src/energy/consumption.rs

@@ -13,6 +13,30 @@ pub enum ConsumptionError {
 
 pub type EnergyConsumption = i32;
 
+#[derive(serde::Deserialize)]
+struct FroniusResponse {
+    #[serde(rename = "Body")]
+    body: FroniusResponseBody,
+}
+
+#[derive(serde::Deserialize)]
+struct FroniusResponseBody {
+    #[serde(rename = "Data")]
+    data: FroniusResponseBodyData,
+}
+
+#[derive(serde::Deserialize)]
+struct FroniusResponseBodyData {
+    #[serde(rename = "Site")]
+    site: FroniusResponseSite,
+}
+
+#[derive(serde::Deserialize)]
+struct FroniusResponseSite {
+    #[serde(rename = "P_Grid")]
+    grid_production: f64,
+}
+
 /// Get current electrical energy consumption
 pub async fn get_curr_consumption() -> anyhow::Result<EnergyConsumption> {
     let backend = AppConfig::get()
@@ -38,5 +62,12 @@ pub async fn get_curr_consumption() -> anyhow::Result<EnergyConsumption> {
                 .parse()
                 .map_err(ConsumptionError::FileInvalidContent)?)
         }
+
+        ConsumptionBackend::Fronius { origin } => {
+            let url = format!("{origin}/solar_api/v1/GetPowerFlowRealtimeData.fcgi");
+            let response = reqwest::get(url).await?.json::<FroniusResponse>().await?;
+
+            Ok(response.body.data.site.grid_production as i32)
+        }
     }
 }

central_backend/src/energy/consumption_history_file.rs

@@ -132,12 +132,14 @@ impl ConsumptionHistoryFile {
 
 #[cfg(test)]
 mod tests {
+    use crate::app_config::ConsumptionHistoryType;
     use crate::energy::consumption::EnergyConsumption;
     use crate::energy::consumption_history_file::{ConsumptionHistoryFile, TIME_INTERVAL};
 
     #[test]
     fn test_consumption_history() {
-        let mut history = ConsumptionHistoryFile::new_memory(0);
+        let mut history =
+            ConsumptionHistoryFile::new_memory(0, ConsumptionHistoryType::GridConsumption);
 
         for i in 0..50 {
             assert_eq!(

central_backend/src/energy/energy_actor.rs

@@ -195,6 +195,27 @@ impl Handler<UpdateDeviceGeneralInfo> for EnergyActor {
     }
 }
 
+/// Set device desired version
+#[derive(Message)]
+#[rtype(result = "anyhow::Result<()>")]
+pub struct SetDesiredVersion(pub DeviceId, pub Option<semver::Version>);
+
+impl Handler<SetDesiredVersion> for EnergyActor {
+    type Result = anyhow::Result<()>;
+
+    fn handle(&mut self, msg: SetDesiredVersion, _ctx: &mut Context<Self>) -> Self::Result {
+        log::info!(
+            "Requested to update device desired version {:?} => {:#?}",
+            &msg.0,
+            &msg.1
+        );
+
+        self.devices.set_desired_version(&msg.0, msg.1)?;
+
+        Ok(())
+    }
+}
+
 /// Delete a device
 #[derive(Message)]
 #[rtype(result = "anyhow::Result<()>")]
@@ -378,8 +399,8 @@ impl Handler<GetDevicesState> for EnergyActor {
 #[derive(serde::Serialize)]
 pub struct ResRelayState {
     pub id: DeviceRelayID,
-    on: bool,
-    r#for: usize,
+    pub on: bool,
+    pub r#for: usize,
 }
 
 /// Get the state of all relays

central_backend/src/energy/engine.rs

@@ -8,7 +8,7 @@ use crate::devices::device::{Device, DeviceId, DeviceRelay, DeviceRelayID};
 use crate::energy::consumption::EnergyConsumption;
 use crate::energy::relay_state_history;
 use crate::energy::relay_state_history::RelayStateHistory;
-use crate::utils::time_utils::{curr_hour, time_secs, time_start_of_day};
+use crate::utils::time_utils::{curr_hour, time_secs};
 
 #[derive(Default)]
 pub struct DeviceState {
@@ -283,12 +283,7 @@ impl EnergyEngine {
                     continue;
                 }
 
-                let time_start_day = time_start_of_day().unwrap_or(1726696800);
-                let start_time = time_start_day + constraints.reset_time as u64;
-                let end_time = time_start_day + 3600 * 24 + constraints.reset_time as u64;
-                let total_runtime =
-                    relay_state_history::relay_total_runtime(r.id, start_time, end_time)
-                        .unwrap_or(3600 * 24);
+                let total_runtime = relay_state_history::relay_total_runtime_adjusted(r);
 
                 if total_runtime > constraints.min_runtime {
                     continue;
@@ -454,7 +449,7 @@ mod test {
     fn run_test(name: &str, conf: &str) {
         let (devices, mut energy_engine, consumption, states) = parse_test_config(conf);
 
-        energy_engine.refresh(consumption, &devices);
+        energy_engine.refresh(consumption, &devices.iter().collect::<Vec<_>>());
 
         for (device_s, device) in states.iter().zip(&devices) {
             for (relay_s, relay) in device_s.relays.iter().zip(&device.relays) {

central_backend/src/energy/relay_state_history.rs

@@ -1,7 +1,7 @@
 use crate::app_config::AppConfig;
-use crate::devices::device::DeviceRelayID;
+use crate::devices::device::{DeviceRelay, DeviceRelayID};
 use crate::utils::files_utils;
-use crate::utils::time_utils::day_number;
+use crate::utils::time_utils::{day_number, time_start_of_day};
 
 const TIME_INTERVAL: usize = 30;
 
@@ -119,6 +119,20 @@ pub fn relay_total_runtime(device_id: DeviceRelayID, from: u64, to: u64) -> anyh
     Ok(total)
 }
 
+/// Get the total runtime of a relay taking account of daily reset time
+pub fn relay_total_runtime_adjusted(relay: &DeviceRelay) -> usize {
+    let reset_time = relay
+        .daily_runtime
+        .as_ref()
+        .map(|r| r.reset_time)
+        .unwrap_or(0);
+
+    let time_start_day = time_start_of_day().unwrap_or(1726696800);
+    let start_time = time_start_day + reset_time as u64;
+    let end_time = time_start_day + 3600 * 24 + reset_time as u64;
+    relay_total_runtime(relay.id, start_time, end_time).unwrap_or(3600 * 24)
+}
+
 #[cfg(test)]
 mod tests {
     use crate::devices::device::DeviceRelayID;

central_backend/src/lib.rs

@@ -3,5 +3,7 @@ pub mod constants;
 pub mod crypto;
 pub mod devices;
 pub mod energy;
+pub mod logs;
+pub mod ota;
 pub mod server;
 pub mod utils;

central_backend/src/logs/log_entry.rs

@@ -0,0 +1,17 @@
+use crate::devices::device::DeviceId;
+use crate::logs::severity::LogSeverity;
+
+#[derive(serde::Serialize, serde::Deserialize, Debug, Clone)]
+pub struct LogEntry {
+    /// If no device is specified then the message comes from the backend
+    pub device_id: Option<DeviceId>,
+    pub time: u64,
+    pub severity: LogSeverity,
+    pub message: String,
+}
+
+impl LogEntry {
+    pub fn serialize(&self) -> anyhow::Result<String> {
+        Ok(serde_json::to_string(self)?)
+    }
+}

central_backend/src/logs/logs_manager.rs

@@ -0,0 +1,58 @@
+use crate::app_config::AppConfig;
+use crate::devices::device::DeviceId;
+use crate::logs::log_entry::LogEntry;
+use crate::logs::severity::LogSeverity;
+use crate::utils::time_utils::{curr_day_number, time_secs};
+use fs4::fs_std::FileExt;
+use std::fs::OpenOptions;
+use std::io::{Seek, SeekFrom, Write};
+
+pub fn save_log(
+    device: Option<&DeviceId>,
+    severity: LogSeverity,
+    message: String,
+) -> anyhow::Result<()> {
+    let log_path = AppConfig::get().log_of_day(curr_day_number());
+
+    let mut file = OpenOptions::new()
+        .append(true)
+        .create(true)
+        .open(&log_path)?;
+
+    file.lock_exclusive()?;
+    file.seek(SeekFrom::End(0))?;
+    file.write_all(
+        format!(
+            "{}\n",
+            (LogEntry {
+                device_id: device.cloned(),
+                time: time_secs(),
+                severity,
+                message,
+            })
+            .serialize()?
+        )
+        .as_bytes(),
+    )?;
+    file.flush()?;
+    file.unlock()?;
+
+    Ok(())
+}
+
+/// Make a logs extraction
+pub fn get_logs(day: u64) -> anyhow::Result<Vec<LogEntry>> {
+    let file = AppConfig::get().log_of_day(day);
+
+    if !file.exists() {
+        return Ok(Vec::new());
+    }
+
+    let content = std::fs::read_to_string(file)?
+        .split('\n')
+        .filter(|l| !l.is_empty())
+        .map(serde_json::from_str)
+        .collect::<Result<Vec<_>, _>>()?;
+
+    Ok(content)
+}

central_backend/src/logs/mod.rs

@@ -0,0 +1,3 @@
+pub mod log_entry;
+pub mod logs_manager;
+pub mod severity;

central_backend/src/logs/severity.rs

@@ -0,0 +1,7 @@
+#[derive(serde::Serialize, serde::Deserialize, Copy, Clone, Debug, PartialOrd, Eq, PartialEq)]
+pub enum LogSeverity {
+    Debug = 0,
+    Info,
+    Warn,
+    Error,
+}

central_backend/src/main.rs

@@ -9,6 +9,9 @@ use tokio_schedule::{every, Job};
 
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
+    // Load additional config from file, if requested
+    AppConfig::parse_env_file().expect("Failed to parse environment file!");
+
     // Initialize OpenSSL
     openssl_sys::init();
 
@@ -19,6 +22,8 @@ async fn main() -> std::io::Result<()> {
     create_directory_if_missing(AppConfig::get().devices_config_path()).unwrap();
     create_directory_if_missing(AppConfig::get().relays_runtime_stats_storage_path()).unwrap();
     create_directory_if_missing(AppConfig::get().energy_consumption_history()).unwrap();
+    create_directory_if_missing(AppConfig::get().logs_dir()).unwrap();
+    create_directory_if_missing(AppConfig::get().ota_dir()).unwrap();
 
     // Initialize PKI
     pki::initialize_root_ca().expect("Failed to initialize Root CA!");
@@ -42,8 +47,8 @@ async fn main() -> std::io::Result<()> {
         .expect("Failed to initialize energy actor!")
         .start();
 
-    let s1 = servers::secure_server(actor);
-    let s2 = servers::unsecure_server();
+    let s1 = servers::secure_server(actor.clone());
+    let s2 = servers::unsecure_server(actor);
     future::try_join(s1, s2)
         .await
         .expect("Failed to start servers!");

central_backend/src/ota/mod.rs

@@ -0,0 +1,2 @@
+pub mod ota_manager;
+pub mod ota_update;

central_backend/src/ota/ota_manager.rs

@@ -0,0 +1,74 @@
+use crate::app_config::AppConfig;
+use crate::ota::ota_update::{OTAPlatform, OTAUpdate};
+use crate::utils::files_utils;
+use std::os::unix::fs::MetadataExt;
+use std::str::FromStr;
+
+/// Check out whether a given update exists or not
+pub fn update_exists(platform: OTAPlatform, version: &semver::Version) -> anyhow::Result<bool> {
+    Ok(AppConfig::get()
+        .path_ota_update(platform, version)
+        .is_file())
+}
+
+/// Save a new firmware update
+pub fn save_update(
+    platform: OTAPlatform,
+    version: &semver::Version,
+    update: &[u8],
+) -> anyhow::Result<()> {
+    let path = AppConfig::get().path_ota_update(platform, version);
+    files_utils::create_directory_if_missing(path.parent().unwrap())?;
+
+    std::fs::write(path, update)?;
+
+    Ok(())
+}
+
+/// Get the content of an OTA update
+pub fn get_ota_update(platform: OTAPlatform, version: &semver::Version) -> anyhow::Result<Vec<u8>> {
+    let path = AppConfig::get().path_ota_update(platform, version);
+    Ok(std::fs::read(path)?)
+}
+
+/// Delete an OTA update
+pub fn delete_update(platform: OTAPlatform, version: &semver::Version) -> anyhow::Result<()> {
+    let path = AppConfig::get().path_ota_update(platform, version);
+    std::fs::remove_file(path)?;
+    Ok(())
+}
+
+/// Get the list of OTA software updates for a platform
+pub fn get_ota_updates_for_platform(platform: OTAPlatform) -> anyhow::Result<Vec<OTAUpdate>> {
+    let ota_path = AppConfig::get().ota_platform_dir(platform);
+
+    // Check if the directory dedicated to the updates of the platform exists
+    if !ota_path.is_dir() {
+        return Ok(Vec::new());
+    }
+
+    let mut out = Vec::new();
+
+    for e in std::fs::read_dir(ota_path)? {
+        let e = e?;
+
+        out.push(OTAUpdate {
+            platform,
+            version: semver::Version::from_str(e.file_name().to_str().unwrap_or("bad"))?,
+            file_size: e.metadata()?.size(),
+        });
+    }
+
+    Ok(out)
+}
+
+/// Get all the available OTA updates
+pub fn get_all_ota_updates() -> anyhow::Result<Vec<OTAUpdate>> {
+    let mut out = vec![];
+
+    for p in OTAPlatform::supported_platforms() {
+        out.append(&mut get_ota_updates_for_platform(*p)?)
+    }
+
+    Ok(out)
+}

central_backend/src/ota/ota_update.rs

@@ -0,0 +1,38 @@
+use std::fmt::{Display, Formatter};
+use std::str::FromStr;
+
+#[derive(serde::Serialize, serde::Deserialize, Debug, Copy, Clone, Eq, PartialEq)]
+pub enum OTAPlatform {
+    #[serde(rename = "Wt32-Eth01")]
+    Wt32Eth01,
+}
+
+impl OTAPlatform {
+    /// Get the list of supported platforms
+    pub fn supported_platforms() -> &'static [Self] {
+        &[OTAPlatform::Wt32Eth01]
+    }
+}
+
+impl Display for OTAPlatform {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        let s = serde_json::to_string(&self).unwrap().replace('"', "");
+        write!(f, "{s}")
+    }
+}
+
+impl FromStr for OTAPlatform {
+    type Err = anyhow::Error;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Ok(serde_json::from_str::<Self>(&format!("\"{s}\""))?)
+    }
+}
+
+/// Single OTA update information
+#[derive(serde::Serialize, serde::Deserialize, Debug, Clone, Eq, PartialEq)]
+pub struct OTAUpdate {
+    pub platform: OTAPlatform,
+    pub version: semver::Version,
+    pub file_size: u64,
+}

central_backend/src/server/devices_api/device_logging_controller.rs

@@ -0,0 +1,22 @@
+use crate::logs::logs_manager;
+use crate::logs::severity::LogSeverity;
+use crate::server::custom_error::HttpResult;
+use crate::server::devices_api::jwt_parser::JWTRequest;
+use crate::server::WebEnergyActor;
+use actix_web::{web, HttpResponse};
+
+#[derive(Debug, serde::Deserialize)]
+pub struct LogRequest {
+    severity: LogSeverity,
+    message: String,
+}
+
+/// Report log message from device
+pub async fn report_log(body: web::Json<JWTRequest>, actor: WebEnergyActor) -> HttpResult {
+    let (device, request) = body.parse_jwt::<LogRequest>(actor).await?;
+
+    log::info!("Save log message from device: {request:#?}");
+    logs_manager::save_log(Some(&device.id), request.severity, request.message)?;
+
+    Ok(HttpResponse::Accepted().finish())
+}

central_backend/src/server/devices_api/devices_ota.rs

@@ -0,0 +1,21 @@
+use crate::ota::ota_manager;
+use crate::ota::ota_update::OTAPlatform;
+use crate::server::custom_error::HttpResult;
+use actix_web::{web, HttpResponse};
+
+#[derive(serde::Deserialize)]
+pub struct FirmwarePath {
+    platform: OTAPlatform,
+    version: semver::Version,
+}
+
+/// Download firmware update
+pub async fn retrieve_firmware(path: web::Path<FirmwarePath>) -> HttpResult {
+    if !ota_manager::update_exists(path.platform, &path.version)? {
+        return Ok(HttpResponse::NotFound().json("The requested firmware was not found!"));
+    }
+
+    let firmware = ota_manager::get_ota_update(path.platform, &path.version)?;
+
+    Ok(HttpResponse::Ok().body(firmware))
+}

central_backend/src/server/devices_api/jwt_parser.rs

@@ -0,0 +1,96 @@
+use crate::app_config::AppConfig;
+use crate::crypto::pki;
+use crate::devices::device::{Device, DeviceId};
+use crate::energy::energy_actor;
+use crate::server::WebEnergyActor;
+use jsonwebtoken::{Algorithm, DecodingKey, Validation};
+use openssl::x509::X509;
+use serde::de::DeserializeOwned;
+use std::collections::HashSet;
+
+#[derive(thiserror::Error, Debug)]
+pub enum JWTError {
+    #[error("Failed to decode JWT header")]
+    FailedDecodeJWT,
+    #[error("Missing KID in JWT!")]
+    MissingKidInJWT,
+    #[error("Sent a JWT for a device which does not exists!")]
+    DeviceDoesNotExists,
+    #[error("Sent a JWT for a device which is not validated!")]
+    DeviceNotValidated,
+    #[error("Sent a JWT using a revoked certificate!")]
+    RevokedCertificate,
+    #[error("Failed to validate JWT!")]
+    FailedValidateJWT,
+}
+
+#[derive(serde::Deserialize)]
+pub struct JWTRequest {
+    pub payload: String,
+}
+
+impl JWTRequest {
+    pub async fn parse_jwt<E: DeserializeOwned>(
+        &self,
+        actor: WebEnergyActor,
+    ) -> anyhow::Result<(Device, E)> {
+        // First, we need to extract device kid from query
+        let Ok(jwt_header) = jsonwebtoken::decode_header(&self.payload) else {
+            log::error!("Failed to decode JWT header!");
+            return Err(JWTError::FailedDecodeJWT.into());
+        };
+
+        let Some(kid) = jwt_header.kid else {
+            log::error!("Missing KID in JWT!");
+            return Err(JWTError::MissingKidInJWT.into());
+        };
+
+        // Fetch device information
+        let Some(device) = actor
+            .send(energy_actor::GetSingleDevice(DeviceId(kid)))
+            .await?
+        else {
+            log::error!("Sent a JWT for a device which does not exists!");
+            return Err(JWTError::DeviceDoesNotExists.into());
+        };
+
+        if !device.validated {
+            log::error!("Sent a JWT for a device which is not validated!");
+            return Err(JWTError::DeviceNotValidated.into());
+        }
+
+        // Check certificate revocation status
+        let cert_bytes = std::fs::read(AppConfig::get().device_cert_path(&device.id))?;
+        let certificate = X509::from_pem(&cert_bytes)?;
+
+        if pki::CertData::load_devices_ca()?.is_revoked(&certificate)? {
+            log::error!("Sent a JWT using a revoked certificate!");
+            return Err(JWTError::RevokedCertificate.into());
+        }
+
+        let (key, alg) = match DecodingKey::from_ec_pem(&cert_bytes) {
+            Ok(key) => (key, Algorithm::ES256),
+            Err(e) => {
+                log::warn!("Failed to decode certificate as EC certificate {e}, trying RSA...");
+                (
+                    DecodingKey::from_rsa_pem(&cert_bytes)
+                        .expect("Failed to decode RSA certificate"),
+                    Algorithm::RS256,
+                )
+            }
+        };
+        let mut validation = Validation::new(alg);
+        validation.validate_exp = false;
+        validation.required_spec_claims = HashSet::default();
+
+        let c = match jsonwebtoken::decode::<E>(&self.payload, &key, &validation) {
+            Ok(c) => c,
+            Err(e) => {
+                log::error!("Failed to validate JWT! {e}");
+                return Err(JWTError::FailedValidateJWT.into());
+            }
+        };
+
+        Ok((device, c.claims))
+    }
+}

central_backend/src/server/devices_api/mgmt_controller.rs

@@ -1,14 +1,16 @@
 use crate::app_config::AppConfig;
-use crate::crypto::pki;
 use crate::devices::device::{DeviceId, DeviceInfo};
 use crate::energy::energy_actor;
+use crate::energy::energy_actor::RelaySyncStatus;
+use crate::ota::ota_manager;
+use crate::ota::ota_update::OTAPlatform;
 use crate::server::custom_error::HttpResult;
+use crate::server::devices_api::jwt_parser::JWTRequest;
 use crate::server::WebEnergyActor;
 use actix_web::{web, HttpResponse};
-use jsonwebtoken::{Algorithm, DecodingKey, Validation};
 use openssl::nid::Nid;
-use openssl::x509::{X509Req, X509};
-use std::collections::HashSet;
+use openssl::x509::X509Req;
+use std::str::FromStr;
 
 #[derive(Debug, serde::Deserialize)]
 pub struct EnrollRequest {
@@ -128,80 +130,41 @@ pub async fn get_certificate(query: web::Query<ReqWithDevID>, actor: WebEnergyAc
         .body(cert))
 }
 
-#[derive(serde::Deserialize)]
-pub struct SyncRequest {
-    payload: String,
-}
-
 #[derive(Debug, serde::Serialize, serde::Deserialize)]
 struct Claims {
     info: DeviceInfo,
 }
 
+#[derive(serde::Serialize)]
+struct SyncResult {
+    relays: Vec<RelaySyncStatus>,
+    available_update: Option<semver::Version>,
+}
+
 /// Synchronize device
-pub async fn sync_device(body: web::Json<SyncRequest>, actor: WebEnergyActor) -> HttpResult {
-    // First, we need to extract device kid from query
-    let Ok(jwt_header) = jsonwebtoken::decode_header(&body.payload) else {
-        log::error!("Failed to decode JWT header!");
-        return Ok(HttpResponse::BadRequest().json("Failed to decode JWT header!"));
-    };
+pub async fn sync_device(body: web::Json<JWTRequest>, actor: WebEnergyActor) -> HttpResult {
+    let (device, claims) = body.0.parse_jwt::<Claims>(actor.clone()).await?;
 
-    let Some(kid) = jwt_header.kid else {
-        log::error!("Missing KID in JWT!");
-        return Ok(HttpResponse::BadRequest().json("Missing KID in JWT!"));
-    };
-
-    // Fetch device information
-    let Some(device) = actor
-        .send(energy_actor::GetSingleDevice(DeviceId(kid)))
-        .await?
-    else {
-        log::error!("Sent a JWT for a device which does not exists!");
-        return Ok(HttpResponse::NotFound().json("Sent a JWT for a device which does not exists!"));
-    };
-
-    if !device.validated {
-        log::error!("Sent a JWT for a device which is not validated!");
-        return Ok(HttpResponse::PreconditionFailed()
-            .json("Sent a JWT for a device which is not validated!"));
-    }
-
-    // Check certificate revocation status
-    let cert_bytes = std::fs::read(AppConfig::get().device_cert_path(&device.id))?;
-    let certificate = X509::from_pem(&cert_bytes)?;
-
-    if pki::CertData::load_devices_ca()?.is_revoked(&certificate)? {
-        log::error!("Sent a JWT using a revoked certificate!");
-        return Ok(
-            HttpResponse::PreconditionFailed().json("Sent a JWT using a revoked certificate!")
-        );
-    }
-
-    let (key, alg) = match DecodingKey::from_ec_pem(&cert_bytes) {
-        Ok(key) => (key, Algorithm::ES256),
-        Err(e) => {
-            log::warn!("Failed to decode certificate as EC certificate {e}, trying RSA...");
-            (
-                DecodingKey::from_rsa_pem(&cert_bytes).expect("Failed to decode RSA certificate"),
-                Algorithm::RS256,
-            )
-        }
-    };
-    let mut validation = Validation::new(alg);
-    validation.validate_exp = false;
-    validation.required_spec_claims = HashSet::default();
-
-    let c = match jsonwebtoken::decode::<Claims>(&body.payload, &key, &validation) {
-        Ok(c) => c,
-        Err(e) => {
-            log::error!("Failed to validate JWT! {e}");
-            return Ok(HttpResponse::PreconditionFailed().json("Failed to validate JWT!"));
-        }
-    };
-
-    let res = actor
-        .send(energy_actor::SynchronizeDevice(device.id, c.claims.info))
+    let relays = actor
+        .send(energy_actor::SynchronizeDevice(
+            device.id,
+            claims.info.clone(),
+        ))
         .await??;
 
-    Ok(HttpResponse::Ok().json(res))
+    let mut available_update = None;
+
+    // Check if the version is available
+    if let Some(desired) = device.desired_version {
+        if claims.info.version < desired
+            && ota_manager::update_exists(OTAPlatform::from_str(&claims.info.reference)?, &desired)?
+        {
+            available_update = Some(desired);
+        }
+    }
+
+    Ok(HttpResponse::Ok().json(SyncResult {
+        relays,
+        available_update,
+    }))
 }

central_backend/src/server/devices_api/mod.rs

@@ -1,2 +1,5 @@
+pub mod device_logging_controller;
+pub mod devices_ota;
+pub mod jwt_parser;
 pub mod mgmt_controller;
 pub mod utils_controller;

central_backend/src/server/servers.rs

@@ -3,7 +3,9 @@ use crate::constants;
 use crate::crypto::pki;
 use crate::energy::energy_actor::EnergyActorAddr;
 use crate::server::auth_middleware::AuthChecker;
-use crate::server::devices_api::{mgmt_controller, utils_controller};
+use crate::server::devices_api::{
+    device_logging_controller, devices_ota, mgmt_controller, utils_controller,
+};
 use crate::server::unsecure_server::*;
 use crate::server::web_api::*;
 use crate::server::web_app_controller;
@@ -20,14 +22,15 @@ use openssl::ssl::{SslAcceptor, SslMethod};
 use std::time::Duration;
 
 /// Start unsecure (HTTP) server
-pub async fn unsecure_server() -> anyhow::Result<()> {
+pub async fn unsecure_server(energy_actor: EnergyActorAddr) -> anyhow::Result<()> {
     log::info!(
         "Unsecure server starting to listen on {} for {}",
         AppConfig::get().unsecure_listen_address,
         AppConfig::get().unsecure_origin()
     );
-    HttpServer::new(|| {
+    HttpServer::new(move || {
         App::new()
+            .app_data(web::Data::new(energy_actor.clone()))
             .wrap(Logger::default())
             .route(
                 "/",
@@ -41,6 +44,10 @@ pub async fn unsecure_server() -> anyhow::Result<()> {
                 "/pki/{file}",
                 web::get().to(unsecure_pki_controller::serve_pki_file),
             )
+            .route(
+                "/relay/{id}/legacy_state",
+                web::get().to(unsecure_relay_controller::legacy_state),
+            )
     })
     .bind(&AppConfig::get().unsecure_listen_address)?
     .run()
@@ -180,6 +187,37 @@ pub async fn secure_server(energy_actor: EnergyActorAddr) -> anyhow::Result<()>
                 "/web_api/device/{id}",
                 web::delete().to(devices_controller::delete_device),
             )
+            // OTA API
+            .route(
+                "/web_api/ota/supported_platforms",
+                web::get().to(ota_controller::supported_platforms),
+            )
+            .route(
+                "/web_api/ota/{platform}/{version}",
+                web::post().to(ota_controller::upload_firmware),
+            )
+            .route(
+                "/web_api/ota/{platform}/{version}",
+                web::get().to(ota_controller::download_firmware),
+            )
+            .route(
+                "/web_api/ota/{platform}/{version}",
+                web::delete().to(ota_controller::delete_update),
+            )
+            .route("/web_api/ota", web::get().to(ota_controller::list_all_ota))
+            .route(
+                "/web_api/ota/{platform}",
+                web::get().to(ota_controller::list_updates_platform),
+            )
+            .route(
+                "/web_api/ota/set_desired_version",
+                web::post().to(ota_controller::set_desired_version),
+            )
+            // Logging controller API
+            .route(
+                "/web_api/logging/logs",
+                web::get().to(logging_controller::get_log),
+            )
             // Relays API
             .route(
                 "/web_api/relays/list",
@@ -226,6 +264,14 @@ pub async fn secure_server(energy_actor: EnergyActorAddr) -> anyhow::Result<()>
                 "/devices_api/mgmt/sync",
                 web::post().to(mgmt_controller::sync_device),
             )
+            .route(
+                "/devices_api/ota/{platform}/{version}",
+                web::get().to(devices_ota::retrieve_firmware),
+            )
+            .route(
+                "/devices_api/logging/record",
+                web::post().to(device_logging_controller::report_log),
+            )
             // Web app
             .route("/", web::get().to(web_app_controller::root_index))
             .route(

central_backend/src/server/unsecure_server/mod.rs

@@ -1,2 +1,3 @@
 pub mod unsecure_pki_controller;
+pub mod unsecure_relay_controller;
 pub mod unsecure_server_controller;

central_backend/src/server/unsecure_server/unsecure_relay_controller.rs

@@ -0,0 +1,60 @@
+use crate::devices::device::DeviceRelayID;
+use crate::energy::{energy_actor, relay_state_history};
+use crate::server::custom_error::HttpResult;
+use crate::server::WebEnergyActor;
+use actix_web::{web, HttpResponse};
+
+#[derive(serde::Deserialize)]
+pub struct LegacyStateRelay {
+    id: DeviceRelayID,
+}
+
+/// Legacy relay state
+#[derive(serde::Serialize)]
+pub struct LegacyState {
+    /// Indicates if relay is on or off
+    is_on: bool,
+    /// Relay name
+    name: String,
+    /// Duration since last change of state
+    r#for: usize,
+    /// Current grid consumption
+    prod: i32,
+    /// Total uptime since last reset
+    total_uptime: usize,
+    /// Required uptime during a day
+    ///
+    /// Will be 0 if there is no daily requirements
+    required_uptime: usize,
+}
+
+/// Get the state of a relay, adapted for old system components
+pub async fn legacy_state(
+    energy_actor: WebEnergyActor,
+    path: web::Path<LegacyStateRelay>,
+) -> HttpResult {
+    let Some(relay) = energy_actor
+        .send(energy_actor::GetSingleRelay(path.id))
+        .await?
+    else {
+        return Ok(HttpResponse::NotFound().body("Relay not found!"));
+    };
+
+    let all_states = energy_actor.send(energy_actor::GetAllRelaysState).await?;
+    let Some(state) = all_states.into_iter().find(|r| r.id == path.id) else {
+        return Ok(HttpResponse::InternalServerError().body("Relay status unavailable!"));
+    };
+
+    let production = energy_actor.send(energy_actor::GetCurrConsumption).await?;
+
+    let total_uptime = relay_state_history::relay_total_runtime_adjusted(&relay);
+
+    Ok(HttpResponse::Ok().json(LegacyState {
+        name: relay.name,
+        is_on: state.on,
+        r#for: state.r#for.min(3600 * 24 * 7),
+        prod: production,
+        total_uptime,
+        required_uptime: relay.daily_runtime.map(|r| r.min_runtime).unwrap_or(0),
+    }))
+}

central_backend/src/server/web_api/logging_controller.rs

@@ -0,0 +1,30 @@
+use crate::devices::device::DeviceId;
+use crate::logs::logs_manager;
+use crate::logs::severity::LogSeverity;
+use crate::server::custom_error::HttpResult;
+use crate::utils::time_utils::curr_day_number;
+use actix_web::{web, HttpResponse};
+
+#[derive(serde::Deserialize)]
+pub struct LogRequest {
+    // Day number
+    day: Option<u64>,
+    min_severity: Option<LogSeverity>,
+    device: Option<DeviceId>,
+}
+
+/// Get some logs
+pub async fn get_log(req: web::Query<LogRequest>) -> HttpResult {
+    let day = req.day.unwrap_or_else(curr_day_number);
+    let mut logs = logs_manager::get_logs(day)?;
+
+    if let Some(min_severity) = req.min_severity {
+        logs.retain(|d| d.severity >= min_severity);
+    }
+
+    if let Some(dev_id) = &req.device {
+        logs.retain(|d| d.device_id.as_ref() == Some(dev_id));
+    }
+
+    Ok(HttpResponse::Ok().json(logs))
+}

central_backend/src/server/web_api/mod.rs

@@ -1,5 +1,7 @@
 pub mod auth_controller;
 pub mod devices_controller;
 pub mod energy_controller;
+pub mod logging_controller;
+pub mod ota_controller;
 pub mod relays_controller;
 pub mod server_controller;

central_backend/src/server/web_api/ota_controller.rs

@@ -0,0 +1,148 @@
+use crate::constants;
+use crate::devices::device::DeviceId;
+use crate::energy::energy_actor;
+use crate::ota::ota_manager;
+use crate::ota::ota_update::OTAPlatform;
+use crate::server::custom_error::HttpResult;
+use crate::server::WebEnergyActor;
+use actix_multipart::form::tempfile::TempFile;
+use actix_multipart::form::MultipartForm;
+use actix_web::{web, HttpResponse};
+
+pub async fn supported_platforms() -> HttpResult {
+    Ok(HttpResponse::Ok().json(OTAPlatform::supported_platforms()))
+}
+
+#[derive(Debug, MultipartForm)]
+pub struct UploadForm {
+    #[multipart(rename = "firmware")]
+    firmware: Vec<TempFile>,
+}
+
+#[derive(serde::Deserialize)]
+pub struct SpecificOTAVersionPath {
+    platform: OTAPlatform,
+    version: semver::Version,
+}
+
+/// Upload a new firmware update
+pub async fn upload_firmware(
+    MultipartForm(form): MultipartForm<UploadForm>,
+    path: web::Path<SpecificOTAVersionPath>,
+) -> HttpResult {
+    if ota_manager::update_exists(path.platform, &path.version)? {
+        return Ok(HttpResponse::Conflict()
+            .json("A firmware with the same version has already been uploaded on the platform!"));
+    }
+
+    let Some(file) = form.firmware.first() else {
+        return Ok(HttpResponse::BadRequest().json("No firmware specified!"));
+    };
+
+    if file.size == 0 {
+        return Ok(HttpResponse::BadRequest().json("Uploaded file is empty!"));
+    }
+
+    if file.size > constants::MAX_FIRMWARE_SIZE {
+        return Ok(HttpResponse::BadRequest().json("Uploaded file is too heavy!"));
+    }
+
+    let content = std::fs::read(file.file.path())?;
+
+    ota_manager::save_update(path.platform, &path.version, &content)?;
+
+    Ok(HttpResponse::Accepted().body("OTA update successfully saved."))
+}
+
+/// Download a firmware update
+pub async fn download_firmware(path: web::Path<SpecificOTAVersionPath>) -> HttpResult {
+    if !ota_manager::update_exists(path.platform, &path.version)? {
+        return Ok(HttpResponse::NotFound().json("The requested firmware update was not found!"));
+    }
+
+    let firmware = ota_manager::get_ota_update(path.platform, &path.version)?;
+
+    Ok(HttpResponse::Ok()
+        .content_type("application/octet-stream")
+        .append_header((
+            "content-disposition",
+            format!(
+                "attachment; filename=\"{}-{}.bin\"",
+                path.platform, path.version
+            ),
+        ))
+        .body(firmware))
+}
+
+/// Delete an uploaded firmware update
+pub async fn delete_update(path: web::Path<SpecificOTAVersionPath>) -> HttpResult {
+    if !ota_manager::update_exists(path.platform, &path.version)? {
+        return Ok(HttpResponse::NotFound().json("The requested firmware update was not found!"));
+    }
+
+    ota_manager::delete_update(path.platform, &path.version)?;
+
+    Ok(HttpResponse::Accepted().finish())
+}
+
+/// Get the list of all OTA updates
+pub async fn list_all_ota() -> HttpResult {
+    Ok(HttpResponse::Ok().json(ota_manager::get_all_ota_updates()?))
+}
+
+#[derive(serde::Deserialize)]
+pub struct ListOTAPath {
+    platform: OTAPlatform,
+}
+
+/// List OTA software updates for a given platform
+pub async fn list_updates_platform(path: web::Path<ListOTAPath>) -> HttpResult {
+    let list = ota_manager::get_ota_updates_for_platform(path.platform)?;
+
+    Ok(HttpResponse::Ok().json(list))
+}
+
+#[derive(serde::Deserialize)]
+pub struct SetDesiredDeviceVersion {
+    devices: Option<Vec<DeviceId>>,
+    platform: Option<OTAPlatform>,
+    version: semver::Version,
+}
+
+pub async fn set_desired_version(
+    actor: WebEnergyActor,
+    body: web::Json<SetDesiredDeviceVersion>,
+) -> HttpResult {
+    if body.devices.is_none() && body.platform.is_none() {
+        return Ok(
+            HttpResponse::BadRequest().json("Must specify one filter to select target devices!")
+        );
+    }
+
+    let devices = actor.send(energy_actor::GetDeviceLists).await?;
+
+    for d in devices {
+        // Filter per platform
+        if let Some(p) = body.platform {
+            if d.info.reference != p.to_string() {
+                continue;
+            }
+        }
+
+        // Filter per device
+        if let Some(ids) = &body.devices {
+            if !ids.contains(&d.id) {
+                continue;
+            }
+        }
+
+        actor
+            .send(energy_actor::SetDesiredVersion(
+                d.id,
+                Some(body.version.clone()),
+            ))
+            .await??;
+    }
+
+    Ok(HttpResponse::Ok().finish())
+}

central_backend/src/server/web_api/server_controller.rs

@@ -12,6 +12,7 @@ pub async fn secure_home() -> HttpResponse {
 struct ServerConfig {
     auth_disabled: bool,
     constraints: StaticConstraints,
+    unsecure_origin: String,
 }
 
 impl Default for ServerConfig {
@@ -19,6 +20,7 @@ impl Default for ServerConfig {
         Self {
             auth_disabled: AppConfig::get().unsecure_disable_login,
             constraints: Default::default(),
+            unsecure_origin: AppConfig::get().unsecure_origin(),
         }
     }
 }

central_backend/src/utils/mod.rs

@@ -1,3 +1,3 @@
 pub mod files_utils;
- pub mod math_utils;
+pub mod math_utils;
 pub mod time_utils;

central_backend/src/utils/time_utils.rs

@@ -22,6 +22,11 @@ pub fn day_number(time: u64) -> u64 {
     time / (3600 * 24)
 }
 
+/// Get current day number
+pub fn curr_day_number() -> u64 {
+    day_number(time_secs())
+}
+
 /// Get current hour, 00 => 23 (local time)
 pub fn curr_hour() -> u32 {
     let local: DateTime<Local> = Local::now();

central_frontend/README.md

@@ -1,30 +0,0 @@
-# React + TypeScript + Vite
-
-This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
-
-Currently, two official plugins are available:
-
-- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
-- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
-
-## Expanding the ESLint configuration
-
-If you are developing a production application, we recommend updating the configuration to enable type aware lint rules:
-
-- Configure the top-level `parserOptions` property like this:
-
-```js
-export default {
-  // other rules...
-  parserOptions: {
-    ecmaVersion: 'latest',
-    sourceType: 'module',
-    project: ['./tsconfig.json', './tsconfig.node.json'],
-    tsconfigRootDir: __dirname,
-  },
-}
-```
-
-- Replace `plugin:@typescript-eslint/recommended` to `plugin:@typescript-eslint/recommended-type-checked` or `plugin:@typescript-eslint/strict-type-checked`
-- Optionally add `plugin:@typescript-eslint/stylistic-type-checked`
-- Install [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) and add `plugin:react/recommended` & `plugin:react/jsx-runtime` to the `extends` list

central_frontend/index.html

@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/sunny.svg" />
+    <link rel="icon" type="image/svg+xml" href="/assets/sunny.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>SolarEnergy</title>
   </head>

central_frontend/package.json

@@ -15,26 +15,29 @@
     "@fontsource/roboto": "^5.1.0",
     "@mdi/js": "^7.4.47",
     "@mdi/react": "^1.6.1",
-    "@mui/icons-material": "^6.1.1",
-    "@mui/material": "^6.1.1",
-    "@mui/x-charts": "^7.18.0",
-    "@mui/x-date-pickers": "^7.18.0",
-    "date-and-time": "^3.5.0",
+    "@mui/icons-material": "^6.1.3",
+    "@mui/material": "^6.1.3",
+    "@mui/x-charts": "^7.20.0",
+    "@mui/x-date-pickers": "^7.20.0",
+    "@types/semver": "^7.5.8",
+    "date-and-time": "^3.6.0",
     "dayjs": "^1.11.13",
+    "filesize": "^10.1.6",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "react-router-dom": "^6.26.2"
+    "react-router-dom": "^6.27.0",
+    "semver": "^7.6.3"
   },
   "devDependencies": {
-    "@types/react": "^18.3.8",
-    "@types/react-dom": "^18.3.0",
-    "@typescript-eslint/eslint-plugin": "^8.6.0",
-    "@typescript-eslint/parser": "^8.6.0",
-    "@vitejs/plugin-react": "^4.3.1",
+    "@types/react": "^18.3.11",
+    "@types/react-dom": "^18.3.1",
+    "@typescript-eslint/eslint-plugin": "^8.8.0",
+    "@typescript-eslint/parser": "^8.8.0",
+    "@vitejs/plugin-react": "^4.3.2",
     "eslint": "^8.57.1",
-    "eslint-plugin-react-hooks": "^4.6.2",
+    "eslint-plugin-react-hooks": "^5.0.0",
     "eslint-plugin-react-refresh": "^0.4.12",
-    "typescript": "^5.6.2",
-    "vite": "^5.4.7"
+    "typescript": "^5.6.3",
+    "vite": "^5.4.8"
   }
 }

central_frontend/src/App.tsx

@@ -10,10 +10,12 @@ import { DeviceRoute } from "./routes/DeviceRoute/DeviceRoute";
 import { DevicesRoute } from "./routes/DevicesRoute";
 import { HomeRoute } from "./routes/HomeRoute";
 import { LoginRoute } from "./routes/LoginRoute";
+import { LogsRoute } from "./routes/LogsRoute";
 import { NotFoundRoute } from "./routes/NotFoundRoute";
 import { PendingDevicesRoute } from "./routes/PendingDevicesRoute";
 import { RelaysListRoute } from "./routes/RelaysListRoute";
 import { BaseAuthenticatedPage } from "./widgets/BaseAuthenticatedPage";
+import { OTARoute } from "./routes/OTARoute";
 
 export function App() {
   if (!AuthApi.SignedIn && !ServerApi.Config.auth_disabled)
@@ -27,6 +29,8 @@ export function App() {
         <Route path="devices" element={<DevicesRoute />} />
         <Route path="dev/:id" element={<DeviceRoute />} />
         <Route path="relays" element={<RelaysListRoute />} />
+        <Route path="ota" element={<OTARoute />} />
+        <Route path="logs" element={<LogsRoute />} />
         <Route path="*" element={<NotFoundRoute />} />
       </Route>
     )

central_frontend/src/api/DeviceApi.ts

@@ -37,6 +37,7 @@ export interface Device {
   validated: boolean;
   enabled: boolean;
   relays: DeviceRelay[];
+  desired_version?: string;
 }
 
 export interface UpdatedInfo {

central_frontend/src/api/LogsAPI.ts

@@ -0,0 +1,29 @@
+import { Dayjs } from "dayjs";
+import { APIClient } from "./ApiClient";
+
+export type LogSeverity = "Debug" | "Info" | "Warn" | "Error";
+
+export interface LogEntry {
+  device_id: string;
+  time: number;
+  severity: LogSeverity;
+  message: string;
+}
+
+export class LogsAPI {
+  /**
+   * Request the logs from the server
+   *
+   * @param date The date that contains the requested date
+   */
+  static async GetLogs(date: Dayjs): Promise<LogEntry[]> {
+    const day = Math.floor(date.unix() / (3600 * 24));
+
+    const res = await APIClient.exec({
+      uri: `/logging/logs?day=${day}`,
+      method: "GET",
+    });
+
+    return res.data;
+  }
+}

central_frontend/src/api/OTAApi.ts

@@ -0,0 +1,87 @@
+import { APIClient } from "./ApiClient";
+
+export interface OTAUpdate {
+  platform: string;
+  version: string;
+  file_size: number;
+}
+
+export class OTAAPI {
+  /**
+   * Get the list of supported OTA platforms
+   */
+  static async SupportedPlatforms(): Promise<Array<string>> {
+    return (
+      await APIClient.exec({
+        method: "GET",
+        uri: "/ota/supported_platforms",
+      })
+    ).data;
+  }
+
+  /**
+   * Upload new OTA firwmare
+   */
+  static async UploadFirmware(
+    platform: string,
+    version: string,
+    firmware: File
+  ): Promise<void> {
+    const fd = new FormData();
+    fd.append("firmware", firmware);
+
+    await APIClient.exec({
+      method: "POST",
+      uri: `/ota/${platform}/${version}`,
+      formData: fd,
+    });
+  }
+
+  /**
+   * Get the link to download an OTA update
+   */
+  static DownloadOTAUpdateURL(update: OTAUpdate): string {
+    return APIClient.backendURL() + `/ota/${update.platform}/${update.version}`;
+  }
+
+  /**
+   * Delete an update
+   */
+  static async DeleteUpdate(update: OTAUpdate): Promise<void> {
+    await APIClient.exec({
+      method: "DELETE",
+      uri: `/ota/${update.platform}/${update.version}`,
+    });
+  }
+
+  /**
+   * Get the list of OTA updates
+   */
+  static async ListOTAUpdates(): Promise<OTAUpdate[]> {
+    return (
+      await APIClient.exec({
+        method: "GET",
+        uri: "/ota",
+      })
+    ).data;
+  }
+
+  /**
+   * Set desired version for one or mor devices
+   */
+  static async SetDesiredVersion(
+    update: OTAUpdate,
+    all_devices: boolean,
+    devices?: string[]
+  ): Promise<void> {
+    await APIClient.exec({
+      method: "POST",
+      uri: "/ota/set_desired_version",
+      jsonData: {
+        version: update.version,
+        platform: update.platform,
+        devices: all_devices ? undefined : devices!,
+      },
+    });
+  }
+}

central_frontend/src/api/ServerApi.ts

@@ -3,6 +3,7 @@ import { APIClient } from "./ApiClient";
 export interface ServerConfig {
   auth_disabled: boolean;
   constraints: ServerConstraint;
+  unsecure_origin: string;
 }
 
 export interface ServerConstraint {

central_frontend/src/dialogs/DeployOTAUpdateDialogProvider.tsx

@@ -0,0 +1,148 @@
+import {
+  Button,
+  Checkbox,
+  Dialog,
+  DialogActions,
+  DialogContent,
+  DialogContentText,
+  DialogTitle,
+  FormControl,
+  FormControlLabel,
+  FormGroup,
+  FormLabel,
+  Radio,
+  RadioGroup,
+  Typography,
+} from "@mui/material";
+import React from "react";
+import { Device, DeviceApi } from "../api/DeviceApi";
+import { OTAAPI, OTAUpdate } from "../api/OTAApi";
+import { useAlert } from "../hooks/context_providers/AlertDialogProvider";
+import { useConfirm } from "../hooks/context_providers/ConfirmDialogProvider";
+import { useLoadingMessage } from "../hooks/context_providers/LoadingMessageProvider";
+import { useSnackbar } from "../hooks/context_providers/SnackbarProvider";
+import { AsyncWidget } from "../widgets/AsyncWidget";
+
+export function DeployOTAUpdateDialogProvider(p: {
+  update: OTAUpdate;
+  onClose: () => void;
+}): React.ReactElement {
+  const loadingMessage = useLoadingMessage();
+  const alert = useAlert();
+  const confirm = useConfirm();
+  const snackbar = useSnackbar();
+
+  const [devicesList, setDevicesList] = React.useState<Device[] | undefined>();
+
+  const loadDevicesList = async () => {
+    let list = await DeviceApi.ValidatedList();
+    list = list.filter((e) => e.info.reference == p.update.platform);
+    setDevicesList(list);
+  };
+
+  const [allDevices, setAllDevices] = React.useState(false);
+  const [selectedDevices, setSelectedDevices] = React.useState<string[]>([]);
+
+  const startDeployment = async () => {
+    if (
+      allDevices &&
+      !(await confirm(
+        "Do you really want to deploy the update to all devices?"
+      ))
+    )
+      return;
+    try {
+      loadingMessage.show("Applying OTA update...");
+
+      await OTAAPI.SetDesiredVersion(p.update, allDevices, selectedDevices);
+
+      snackbar("The update was successfully applied!");
+      p.onClose();
+    } catch (e) {
+      console.error("Failed to deploy the udpate!", e);
+      alert(`Failed to deploy the udpate! ${e}`);
+    } finally {
+      loadingMessage.hide();
+    }
+  };
+
+  return (
+    <Dialog open={true} onClose={p.onClose}>
+      <DialogTitle>
+        Deploy update <i>{p.update.version}</i> for platform{" "}
+        <i>{p.update.platform}</i>
+      </DialogTitle>
+      <AsyncWidget
+        loadKey={1}
+        load={loadDevicesList}
+        errMsg="Failed to load the list of devices!"
+        build={() => (
+          <DialogContent>
+            <DialogContentText>
+              You can choose to deploy update to all device or to target only a
+              part of devices:
+            </DialogContentText>
+
+            <FormControl>
+              <FormLabel>Gender</FormLabel>
+              <RadioGroup
+                name="radio-buttons-group"
+                value={allDevices}
+                onChange={(v) => setAllDevices(v.target.value == "true")}
+              >
+                <FormControlLabel
+                  value={true}
+                  control={<Radio />}
+                  label="Deploy the update to all the devices of the platform"
+                />
+                <FormControlLabel
+                  value={false}
+                  control={<Radio />}
+                  label="Deploy the update to a limited range of devices"
+                />
+              </RadioGroup>
+            </FormControl>
+            {!allDevices && (
+              <Typography>
+                There are no devices to which the update can be deployed.
+              </Typography>
+            )}
+            {!allDevices && (
+              <FormGroup>
+                {devicesList?.map((d) => (
+                  <FormControlLabel
+                    control={
+                      <Checkbox
+                        checked={selectedDevices.includes(d.id)}
+                        onChange={(_e, v) => {
+                          if (v) {
+                            selectedDevices.push(d.id);
+                            setSelectedDevices([...selectedDevices]);
+                          } else
+                            setSelectedDevices(
+                              selectedDevices.filter((e) => e != d.id)
+                            );
+                        }}
+                      />
+                    }
+                    label={d.name}
+                  />
+                ))}
+              </FormGroup>
+            )}
+          </DialogContent>
+        )}
+      />
+      <DialogActions>
+        <Button onClick={p.onClose}>Cancel</Button>
+        <Button
+          onClick={startDeployment}
+          autoFocus
+          disabled={!allDevices && selectedDevices.length == 0}
+        >
+          Start deployment
+        </Button>
+      </DialogActions>
+    </Dialog>
+  );
+}

central_frontend/src/dialogs/UploadUpdateDialog.tsx

@@ -0,0 +1,132 @@
+import CloudUploadIcon from "@mui/icons-material/CloudUpload";
+import {
+  Button,
+  Dialog,
+  DialogActions,
+  DialogContent,
+  DialogContentText,
+  DialogTitle,
+  FormControl,
+  InputLabel,
+  MenuItem,
+  Select,
+  styled,
+} from "@mui/material";
+import React from "react";
+import { OTAAPI } from "../api/OTAApi";
+import { useAlert } from "../hooks/context_providers/AlertDialogProvider";
+import { useLoadingMessage } from "../hooks/context_providers/LoadingMessageProvider";
+import { useSnackbar } from "../hooks/context_providers/SnackbarProvider";
+import { checkVersion } from "../utils/StringsUtils";
+import { TextInput } from "../widgets/forms/TextInput";
+
+const VisuallyHiddenInput = styled("input")({
+  clip: "rect(0 0 0 0)",
+  clipPath: "inset(50%)",
+  height: 1,
+  overflow: "hidden",
+  position: "absolute",
+  bottom: 0,
+  left: 0,
+  whiteSpace: "nowrap",
+  width: 1,
+});
+
+export function UploadUpdateDialog(p: {
+  platforms: string[];
+  onClose: () => void;
+  onCreated: () => void;
+}): React.ReactElement {
+  const alert = useAlert();
+  const snackbar = useSnackbar();
+  const loadingMessage = useLoadingMessage();
+
+  const [platform, setPlatform] = React.useState<string | undefined>();
+  const [version, setVersion] = React.useState<string | undefined>();
+  const [file, setFile] = React.useState<File | undefined>();
+
+  const canSubmit = platform && version && checkVersion(version) && file;
+
+  const upload = async () => {
+    try {
+      loadingMessage.show("Uploading firmware...");
+      await OTAAPI.UploadFirmware(platform!, version!, file!);
+
+      snackbar("Successfully uploaded new firmware!");
+
+      p.onCreated();
+    } catch (e) {
+      console.error(e);
+      alert(`Failed to upload firmware: ${e}`);
+    } finally {
+      loadingMessage.hide();
+    }
+  };
+
+  return (
+    <Dialog open={true} onClose={p.onClose}>
+      <DialogTitle>Submit a new update</DialogTitle>
+      <DialogContent>
+        <DialogContentText>
+          You can upload a new firmware using this form.
+        </DialogContentText>
+        <br />
+        <FormControl fullWidth>
+          <InputLabel>Platform</InputLabel>
+          <Select
+            label="Platform"
+            value={platform}
+            onChange={(e) => setPlatform(e.target.value)}
+            variant="standard"
+          >
+            {p.platforms.map((p) => (
+              <MenuItem key={p} value={p}>
+                {p}
+              </MenuItem>
+            ))}
+          </Select>
+        </FormControl>
+        <br />
+        <br />
+        <TextInput
+          editable
+          label="Version"
+          helperText="The version shall follow semantics requirements"
+          value={version}
+          onValueChange={setVersion}
+          checkValue={checkVersion}
+        />
+
+        <br />
+
+        <Button
+          fullWidth
+          component="label"
+          role={undefined}
+          variant={file ? "contained" : "outlined"}
+          tabIndex={-1}
+          startIcon={<CloudUploadIcon />}
+        >
+          Upload file
+          <VisuallyHiddenInput
+            type="file"
+            onChange={(event) =>
+              setFile(
+                (event.target.files?.length ?? 0) > 0
+                  ? event.target.files![0]
+                  : undefined
+              )
+            }
+            multiple
+          />
+        </Button>
+      </DialogContent>
+      <DialogActions>
+        <Button onClick={p.onClose}>Cancel</Button>
+        <Button type="submit" disabled={!canSubmit} onClick={upload}>
+          Upload
+        </Button>
+      </DialogActions>
+    </Dialog>
+  );
+}

central_frontend/src/routes/DeviceRoute/DeviceRelays.tsx

@@ -129,7 +129,9 @@ export function DeviceRelays(p: {
   );
 }
 
-function RelayEntryStatus(p: { relay: DeviceRelay }): React.ReactElement {
+function RelayEntryStatus(
+  p: Readonly<{ relay: DeviceRelay }>
+): React.ReactElement {
   const [state, setState] = React.useState<RelayStatus | undefined>();
 
   const load = async () => {

central_frontend/src/routes/DeviceRoute/GeneralDeviceInfo.tsx

@@ -41,6 +41,10 @@ export function GeneralDeviceInfo(p: {
               value={p.device.info.reference}
             />
             <DeviceInfoProperty label="Version" value={p.device.info.version} />
+            <DeviceInfoProperty
+              label="Desired version"
+              value={p.device.desired_version ?? "None"}
+            />
             <DeviceInfoProperty label="Name" value={p.device.name} />
             <DeviceInfoProperty
               label="Description"

central_frontend/src/routes/LoginRoute.tsx

@@ -62,7 +62,7 @@ export function LoginRoute() {
       <Grid
         size={{ sm: 4, md: 7, xs: false }}
         sx={{
-          backgroundImage: 'url("/sun.jpg")',
+          backgroundImage: 'url("/assets/sun.jpg")',
           backgroundColor: (t) =>
             t.palette.mode === "light"
               ? t.palette.grey[50]

central_frontend/src/routes/LogsRoute.tsx

@@ -0,0 +1,124 @@
+import NavigateBeforeIcon from "@mui/icons-material/NavigateBefore";
+import NavigateNextIcon from "@mui/icons-material/NavigateNext";
+import RefreshIcon from "@mui/icons-material/Refresh";
+import {
+  IconButton,
+  Paper,
+  Table,
+  TableBody,
+  TableCell,
+  TableContainer,
+  TableHead,
+  TableRow,
+  Tooltip,
+  Typography,
+} from "@mui/material";
+import { DatePicker } from "@mui/x-date-pickers";
+import dayjs from "dayjs";
+import React from "react";
+import { LogEntry, LogsAPI } from "../api/LogsAPI";
+import { AsyncWidget } from "../widgets/AsyncWidget";
+import { SolarEnergyRouteContainer } from "../widgets/SolarEnergyRouteContainer";
+
+export function LogsRoute(): React.ReactElement {
+  const loadKey = React.useRef(1);
+
+  const [currDate, setCurrDate] = React.useState(dayjs());
+
+  const [logs, setLogs] = React.useState<LogEntry[] | undefined>();
+
+  const load = async () => {
+    const logs = await LogsAPI.GetLogs(currDate);
+    logs.reverse();
+    setLogs(logs);
+  };
+
+  const reload = () => {
+    setLogs(undefined);
+    loadKey.current += 1;
+  };
+  return (
+    <SolarEnergyRouteContainer
+      label="Logs"
+      actions={
+        <Tooltip title="Refresh logs">
+          <IconButton onClick={reload}>
+            <RefreshIcon />
+          </IconButton>
+        </Tooltip>
+      }
+    >
+      <div
+        style={{
+          width: "100%",
+          display: "flex",
+          alignItems: "center",
+          justifyContent: "center",
+          marginBottom: "10px",
+        }}
+      >
+        <Tooltip title="Previous day">
+          <IconButton onClick={() => setCurrDate(currDate.add(-1, "day"))}>
+            <NavigateBeforeIcon />
+          </IconButton>
+        </Tooltip>
+        <DatePicker
+          label="Shown day"
+          value={currDate}
+          onChange={(d) => setCurrDate(d === null ? currDate : d)}
+        />
+        <Tooltip title="Next day">
+          <IconButton onClick={() => setCurrDate(currDate.add(1, "day"))}>
+            <NavigateNextIcon />
+          </IconButton>
+        </Tooltip>
+      </div>
+      <AsyncWidget
+        ready={!!logs}
+        loadKey={loadKey.current + currDate.toString()}
+        errMsg="Failed to load the logs!"
+        load={load}
+        build={() => <LogsView logs={logs!} />}
+      />
+    </SolarEnergyRouteContainer>
+  );
+}
+
+function LogsView(p: { logs: LogEntry[] }): React.ReactElement {
+  if (p.logs.length == 0) {
+    return (
+      <Typography style={{ textAlign: "center" }}>
+        There was no log recorded on this day.
+      </Typography>
+    );
+  }
+
+  return (
+    <TableContainer component={Paper}>
+      <Table sx={{ minWidth: 650 }} size="small" aria-label="a dense table">
+        <TableHead>
+          <TableRow>
+            <TableCell>Device ID</TableCell>
+            <TableCell>Time</TableCell>
+            <TableCell>Severity</TableCell>
+            <TableCell>Message</TableCell>
+          </TableRow>
+        </TableHead>
+        <TableBody>
+          {p.logs.map((row, id) => (
+            <TableRow key={id} hover>
+              <TableCell component="th" scope="row">
+                {row.device_id ?? "Backend"}
+              </TableCell>
+              <TableCell>
+                {new Date(row.time * 1000).toLocaleTimeString()}
+              </TableCell>
+              <TableCell>{row.severity}</TableCell>
+              <TableCell>{row.message}</TableCell>
+            </TableRow>
+          ))}
+        </TableBody>
+      </Table>
+    </TableContainer>
+  );
+}

central_frontend/src/routes/OTARoute.tsx

@@ -0,0 +1,203 @@
+import { mdiFolderUploadOutline } from "@mdi/js";
+import Icon from "@mdi/react";
+import DeleteIcon from "@mui/icons-material/Delete";
+import DownloadIcon from "@mui/icons-material/Download";
+import FileUploadIcon from "@mui/icons-material/FileUpload";
+import RefreshIcon from "@mui/icons-material/Refresh";
+import {
+  IconButton,
+  Paper,
+  Table,
+  TableBody,
+  TableCell,
+  TableContainer,
+  TableHead,
+  TableRow,
+  Tooltip,
+  Typography,
+} from "@mui/material";
+import { filesize } from "filesize";
+import React from "react";
+import { OTAAPI, OTAUpdate } from "../api/OTAApi";
+import { DeployOTAUpdateDialogProvider } from "../dialogs/DeployOTAUpdateDialogProvider";
+import { UploadUpdateDialog } from "../dialogs/UploadUpdateDialog";
+import { useAlert } from "../hooks/context_providers/AlertDialogProvider";
+import { useConfirm } from "../hooks/context_providers/ConfirmDialogProvider";
+import { useLoadingMessage } from "../hooks/context_providers/LoadingMessageProvider";
+import { useSnackbar } from "../hooks/context_providers/SnackbarProvider";
+import { AsyncWidget } from "../widgets/AsyncWidget";
+import { RouterLink } from "../widgets/RouterLink";
+import { SolarEnergyRouteContainer } from "../widgets/SolarEnergyRouteContainer";
+
+export function OTARoute(): React.ReactElement {
+  const [list, setList] = React.useState<string[] | undefined>();
+  const load = async () => {
+    setList(await OTAAPI.SupportedPlatforms());
+  };
+
+  return (
+    <AsyncWidget
+      loadKey={1}
+      ready={!!list}
+      load={load}
+      errMsg="Failed to load OTA screen!"
+      build={() => <_OTARoute platforms={list!} />}
+    />
+  );
+}
+
+function _OTARoute(p: { platforms: Array<string> }): React.ReactElement {
+  const key = React.useRef(1);
+  const [showUploadDialog, setShowUploadDialog] = React.useState(false);
+
+  const [list, setList] = React.useState<undefined | OTAUpdate[]>();
+
+  const load = async () => {
+    const list = await OTAAPI.ListOTAUpdates();
+    list.sort((a, b) =>
+      `${a.platform}#${a.version}`.localeCompare(`${b.platform}#${b.version}`)
+    );
+    list.reverse();
+    setList(list);
+  };
+
+  const reload = async () => {
+    key.current += 1;
+    setList(undefined);
+  };
+
+  return (
+    <SolarEnergyRouteContainer
+      label="OTA"
+      actions={
+        <span>
+          <Tooltip title="Refresh the list of updates">
+            <IconButton onClick={reload}>
+              <RefreshIcon />
+            </IconButton>
+          </Tooltip>
+          <Tooltip title="Upload a new update">
+            <IconButton onClick={() => setShowUploadDialog(true)}>
+              <FileUploadIcon />
+            </IconButton>
+          </Tooltip>
+        </span>
+      }
+    >
+      {showUploadDialog && (
+        <UploadUpdateDialog
+          platforms={p.platforms}
+          onClose={() => setShowUploadDialog(false)}
+          onCreated={() => {
+            setShowUploadDialog(false);
+            reload();
+          }}
+        />
+      )}
+      <AsyncWidget
+        loadKey={key.current}
+        ready={!!list}
+        errMsg="Failed to load the list of OTA updates!"
+        load={load}
+        build={() => <_OTAList list={list!} onReload={reload} />}
+      />
+    </SolarEnergyRouteContainer>
+  );
+}
+
+function _OTAList(p: {
+  list: OTAUpdate[];
+  onReload: () => void;
+}): React.ReactElement {
+  const alert = useAlert();
+  const confirm = useConfirm();
+  const loadingMessage = useLoadingMessage();
+  const snackbar = useSnackbar();
+
+  const [deployUpdate, setDeployUpdate] = React.useState<
+    OTAUpdate | undefined
+  >();
+
+  const deleteUpdate = async (update: OTAUpdate) => {
+    if (
+      !(await confirm(
+        `Do you really want to delete the update for platform ${update.platform} version ${update.version}?`
+      ))
+    )
+      return;
+
+    try {
+      loadingMessage.show("Deleting update...");
+
+      await OTAAPI.DeleteUpdate(update);
+
+      snackbar("The update was successfully deleted!");
+
+      p.onReload();
+    } catch (e) {
+      console.error("Failed to delete update!", e);
+      alert(`Failed to delete the update! ${e}`);
+    } finally {
+      loadingMessage.hide();
+    }
+  };
+
+  if (p.list.length === 0) {
+    return (
+      <Typography>
+        There is no OTA update uploaded on the platform yet.
+      </Typography>
+    );
+  }
+
+  return (
+    <>
+      {deployUpdate && (
+        <DeployOTAUpdateDialogProvider
+          update={deployUpdate!}
+          onClose={() => setDeployUpdate(undefined)}
+        />
+      )}
+      <TableContainer component={Paper}>
+        <Table sx={{ minWidth: 650 }} aria-label="list of updates">
+          <TableHead>
+            <TableRow>
+              <TableCell align="center">Platform</TableCell>
+              <TableCell align="center">Version</TableCell>
+              <TableCell align="center">File size</TableCell>
+              <TableCell align="center"></TableCell>
+            </TableRow>
+          </TableHead>
+          <TableBody>
+            {p.list.map((row, num) => (
+              <TableRow hover key={num}>
+                <TableCell align="center">{row.platform}</TableCell>
+                <TableCell align="center">{row.version}</TableCell>
+                <TableCell align="center">{filesize(row.file_size)}</TableCell>
+                <TableCell align="center">
+                  <Tooltip title="Deploy the update to devices">
+                    <IconButton onClick={() => setDeployUpdate(row)}>
+                      <Icon path={mdiFolderUploadOutline} size={1} />
+                    </IconButton>
+                  </Tooltip>
+                  <Tooltip title="Download a copy of the firmware">
+                    <RouterLink to={OTAAPI.DownloadOTAUpdateURL(row)}>
+                      <IconButton>
+                        <DownloadIcon />
+                      </IconButton>
+                    </RouterLink>
+                  </Tooltip>
+                  <Tooltip title="Delete firmware update">
+                    <IconButton onClick={() => deleteUpdate(row)}>
+                      <DeleteIcon />
+                    </IconButton>
+                  </Tooltip>
+                </TableCell>
+              </TableRow>
+            ))}
+          </TableBody>
+        </Table>
+      </TableContainer>
+    </>
+  );
+}

central_frontend/src/routes/RelaysListRoute.tsx

@@ -1,3 +1,4 @@
+import LinkIcon from "@mui/icons-material/Link";
 import RefreshIcon from "@mui/icons-material/Refresh";
 import {
   IconButton,
@@ -9,16 +10,18 @@ import {
   TableHead,
   TableRow,
   Tooltip,
+  Typography,
 } from "@mui/material";
 import React from "react";
+import { useNavigate } from "react-router-dom";
 import { Device, DeviceApi, DeviceRelay, DeviceURL } from "../api/DeviceApi";
 import { RelayApi, RelaysStatus } from "../api/RelayApi";
 import { AsyncWidget } from "../widgets/AsyncWidget";
 import { BoolText } from "../widgets/BoolText";
 import { SolarEnergyRouteContainer } from "../widgets/SolarEnergyRouteContainer";
 import { TimeWidget } from "../widgets/TimeWidget";
-import { EditDeviceRelaysDialog } from "../dialogs/EditDeviceRelaysDialog";
-import { useNavigate } from "react-router-dom";
+import { CopyToClipboard } from "../widgets/CopyToClipboard";
+import { ServerApi } from "../api/ServerApi";
 
 export function RelaysListRoute(p: {
   homeWidget?: boolean;
@@ -87,6 +90,10 @@ function RelaysList(p: {
     navigate(DeviceURL(dev!));
   };
 
+  if (p.list.length === 0) {
+    return <Typography>There is no configured relay yet!</Typography>;
+  }
+
   return (
     <TableContainer component={Paper}>
       <Table sx={{ minWidth: 650 }}>
@@ -97,6 +104,7 @@ function RelaysList(p: {
             <TableCell>Priority</TableCell>
             <TableCell>Consumption</TableCell>
             <TableCell>Status</TableCell>
+            <TableCell></TableCell>
           </TableRow>
         </TableHead>
         <TableBody>
@@ -121,6 +129,20 @@ function RelaysList(p: {
                 />{" "}
                 for <TimeWidget diff time={p.status.get(row.id)!.for} />
               </TableCell>
+              <TableCell>
+                <Tooltip title="Copy legacy api status">
+                  <CopyToClipboard
+                    content={
+                      ServerApi.Config.unsecure_origin +
+                      `/relay/${row.id}/legacy_state`
+                    }
+                  >
+                    <IconButton>
+                      <LinkIcon />
+                    </IconButton>
+                  </CopyToClipboard>
+                </Tooltip>
+              </TableCell>
             </TableRow>
           ))}
         </TableBody>

central_frontend/src/utils/StringsUtils.ts

@@ -1,3 +1,4 @@
+import { SemVer } from "semver";
 import { LenConstraint } from "../api/ServerApi";
 
 /**
@@ -6,3 +7,16 @@ import { LenConstraint } from "../api/ServerApi";
 export function lenValid(s: string, c: LenConstraint): boolean {
   return s.length >= c.min && s.length <= c.max;
 }
+
+/**
+ * Check out whether a given version number respect semantics requirements or not
+ */
+export function checkVersion(v: string): boolean {
+  try {
+    new SemVer(v, { loose: false });
+    return true;
+  } catch (e) {
+    console.error(e);
+    return false;
+  }
+}

central_frontend/src/widgets/CopyToClipboard.tsx

@@ -0,0 +1,30 @@
+import { ButtonBase } from "@mui/material";
+import { PropsWithChildren } from "react";
+import { useSnackbar } from "../hooks/context_providers/SnackbarProvider";
+
+export function CopyToClipboard(
+  p: PropsWithChildren<{ content: string }>
+): React.ReactElement {
+  const snackbar = useSnackbar();
+
+  const copy = () => {
+    navigator.clipboard.writeText(p.content);
+    snackbar(`${p.content} copied to clipboard.`);
+  };
+
+  return (
+    <ButtonBase
+      onClick={copy}
+      style={{
+        display: "inline-block",
+        alignItems: "unset",
+        textAlign: "unset",
+        position: "relative",
+        padding: "0px",
+      }}
+      disableRipple
+    >
+      {p.children}
+    </ButtonBase>
+  );
+}

central_frontend/src/widgets/SolarEnergyNavList.tsx

@@ -1,4 +1,11 @@
-import { mdiChip, mdiElectricSwitch, mdiHome, mdiNewBox } from "@mdi/js";
+import {
+  mdiChip,
+  mdiElectricSwitch,
+  mdiHome,
+  mdiMonitorArrowDown,
+  mdiNewBox,
+  mdiNotebookMultiple,
+} from "@mdi/js";
 import Icon from "@mdi/react";
 import {
   List,
@@ -35,6 +42,16 @@ export function SolarEnergyNavList(): React.ReactElement {
         uri="/relays"
         icon={<Icon path={mdiElectricSwitch} size={1} />}
       />
+      <NavLink
+        label="OTA"
+        uri="/ota"
+        icon={<Icon path={mdiMonitorArrowDown} size={1} />}
+      />
+      <NavLink
+        label="Logging"
+        uri="/logs"
+        icon={<Icon path={mdiNotebookMultiple} size={1} />}
+      />
     </List>
   );
 }

central_frontend/src/widgets/SolarEnergyRouteContainer.tsx

@@ -9,13 +9,20 @@ export function SolarEnergyRouteContainer(
   } & PropsWithChildren
 ): React.ReactElement {
   return (
-    <div style={{ margin: p.homeWidget ? "0px" : "50px" }}>
+    <div
+      style={{
+        margin: p.homeWidget ? "0px" : "50px",
+        flex: 1,
+        maxWidth: "1300px",
+      }}
+    >
       <div
         style={{
           display: "flex",
           justifyContent: "space-between",
           alignItems: "center",
           marginBottom: "20px",
+          flex: 1,
         }}
       >
         <Typography variant={p.homeWidget ? "h6" : "h4"}>{p.label}</Typography>

custom_consumption/Cargo.lock

@@ -697,9 +697,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.18"
+version = "4.5.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0956a43b323ac1afaffc053ed5c4b7c1f1800bacd1683c353aabbb752515dd3"
+checksum = "b97f376d85a664d5837dbae44bf546e6477a679ff6610010f17276f686d867e8"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -707,9 +707,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.18"
+version = "4.5.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d72166dd41634086d5803a47eb71ae740e61d84709c36f3c34110173db3961b"
+checksum = "19bc80abd44e4bed93ca373a0704ccbd1b710dc5749406201bb018272808dc54"
 dependencies = [
  "anstream",
  "anstyle",
@@ -1729,7 +1729,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e310b3a6b5907f99202fcdb4960ff45b93735d7c7d96b760fcff8db2dc0e103d"
 dependencies = [
  "cfg-if",
- "windows-targets 0.52.5",
+ "windows-targets 0.48.5",
 ]
 
 [[package]]

docs/SETUP_DEV.md

@@ -0,0 +1,106 @@
+# Setup development environment
+
+## Backend
+To build the backend, you will need to install:
+
+* Rust: https://www.rust-lang.org/
+* An IDE with Rust support. I would definitly recommend [RustRover](https://www.jetbrains.com/rust/) (the tool from IntelliJ).
+
+Check if your environment is working using the following command:
+
+```bash
+cargo fmt && cargo clippy && cargo run -- --help
+```
+
+For development, the following flags might prove being useful:
+* `--unsecure-disable-login`: Disable authentication on all web API endpoints
+* `--hostname`: Change public server hostname, if you want to expose your test instance to network device, such as an ESP32
+
+## Custom consumption
+Same requirements as for the backend. This tool spawns a gui that allows to set arbitrary consumption values:
+
+![Custom consumption](img/custom_consumption.png)
+
+
+To use it, first launch this tool:
+
+```bash
+cd custom_consumption
+cargo run
+```
+
+Set a custom value to force file creation (in the UI).
+
+Then launch central backend (in another terminal):
+
+```bash
+cd central_backend
+cargo fmt && cargo clippy && RUST_LOG=debug cargo run -- file
+```
+
+
+## Central frontend
+The frontend has been built using [NodeJS](https://nodejs.org/en), [Vite](https://vite.dev/) and [MUI](https://mui.com/).
+
+Launch it using this command:
+
+```bash
+cd central_frontend
+npm run dev
+```
+
+## Python device
+This component has been built using ... Python. Waw!
+
+You will need to install this dependency, first:
+```bash
+apt install python3-jwt
+```
+
+
+Run the client:
+
+```bash
+cd python_device
+python3 -m src.main
+
+# Get CLI help
+python3 -m src.main --help
+```
+
+
+Reformat code:
+
+```bash
+black src/*.py
+```
+
+## ESP32 device
+The ESP32 device is in reality a [Wt32-Eth01](https://en.wireless-tag.com/product-item-2.html) device. Use the following mapping to setup dev env:
+
+![ESP mapping](img/esp_mapping.png)
+
+You can use a [CP2102](https://fr.aliexpress.com/item/4000120687489.html) to flash the ESP32.
+
+I recommend to use VSCode with the following extensions:
+* [ESP-IDF](https://marketplace.visualstudio.com/items?itemName=espressif.esp-idf-extension)
+* [C/C++](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools)
+* [Prettier](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode)
+
+To build the project, use this command (in an ESP-IDF terminal):
+
+```bash
+idf.py build
+```
+
+To flash the ESP32, use this one:
+
+```bash
+idf.py flash
+```
+
+To capture logs from device, use either `cu` or the following command:
+
+```
+idf.py monitor
+```

docs/SETUP_PROD.md

@@ -0,0 +1,48 @@
+# Configure project for production
+
+## Create production build
+
+### Central
+The production release of central backend and frontend can be realised on a computer which has NodeJS and Rust installed by executing the following command at the root of the project:
+
+```bash
+make
+```
+
+The backend will be available at this location:
+
+```
+central_backend/target/release/central_backend
+```
+
+### Python device
+The Python device isn't production ready yet.
+
+
+### ESP32 device
+
+#### Flashing the device directly
+Use the following commands to flash a device (inside ESP-IDF environnment):
+
+```bash
+idf.py build
+idf.py flash
+```
+
+
+#### Getting an OTA update
+Use the following command to build an OTA update:
+
+```bash
+idf.py build
+```
+
+The OTA update is then located in `build/main.bin`
+
+
+## Pre-requisites
+* A server running a recent Linux (Debian / Ubuntu preferred) with `central` as hostname
+* DHCP configured on the network
+
+## Configure server
+TODO

esp32_device/.vscode/settings.json

@@ -49,6 +49,12 @@
     "regex": "c",
     "stdlib.h": "c",
     "secure_api.h": "c",
-    "jwt.h": "c"
+    "jwt.h": "c",
+    "sync_response.h": "c",
+    "gpio.h": "c",
+    "esp_system.h": "c",
+    "relays.h": "c",
+    "esp_app_desc.h": "c",
+    "ota.h": "c"
   }
 }

esp32_device/README.md

@@ -1,3 +1,18 @@
 # ESP32 device
 
 ESP32 client device, using `W32-ETH01` device
+
+## Some commands
+
+Create a new firmware build:
+
+```bash
+idf.py build
+```
+
+Upload firmware to central backend, in dev mode:
+
+```bash
+curl -k -X POST  https://localhost:8443/web_api/ota/Wt32-Eth01/$(cat version.txt) --form firmware="@build/main.bin"
+curl -k -X POST  https://localhost:8443/web_api/ota/set_desired_version --header "Content-Type: application/json" --data "{\"platform\": \"Wt32-Eth01\", \"version\": \"$(cat version.txt)\"}"
+```

esp32_device/build_upload_dev.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+idf.py build && \
+    curl -k -X POST  https://localhost:8443/web_api/ota/Wt32-Eth01/$(cat version.txt) --form firmware="@build/main.bin" && \
+    curl -k -X POST  https://localhost:8443/web_api/ota/set_desired_version --header "Content-Type: application/json" --data "{\"platform\": \"Wt32-Eth01\", \"version\": \"$(cat version.txt)\"}"

esp32_device/main/CMakeLists.txt

@@ -1,4 +1,4 @@
-idf_component_register(SRCS "jwt.c" "secure_api.c" "http_client.c" "ethernet.c" "unsecure_api.c" "system.c" "crypto.c" "random.c" "storage.c" "main.c"
+idf_component_register(SRCS "ota.c" "relays.c" "sync_response.c" "jwt.c" "secure_api.c" "http_client.c" "ethernet.c" "unsecure_api.c" "system.c" "crypto.c" "random.c" "storage.c" "main.c"
                         "dev_name.c"
                     INCLUDE_DIRS ".")
 

esp32_device/main/constants.h

@@ -5,16 +5,6 @@
  */
 #define DEV_REFERENCE "Wt32-Eth01"
 
-/**
- * Device version
- */
-#define DEV_VERSION "0.0.1"
-
-/**
- * Device max number of relays
- */
-#define DEV_MAX_RELAYS 1
-
 /**
  * Backend unsecure API URL
  */
@@ -44,3 +34,13 @@
  * Secure origin len
  */
 #define SEC_ORIG_LEN 255
+
+/**
+ * Interval of time (in seconds) between two synchronisations
+ */
+#define SYNC_TIME_INTERVAL 5
+
+/**
+ * OTA download timeout (in milliseconds)
+ */
+#define OTA_REC_TIMEOUT 15000

esp32_device/main/crypto.c

@@ -29,12 +29,12 @@ static void seed_ctr_drbg_context(mbedtls_entropy_context *entropy, mbedtls_ctr_
     mbedtls_entropy_init(entropy);
     mbedtls_ctr_drbg_init(ctr_drbg);
 
-    ESP_LOGI(TAG, "Seed Mbedtls\n");
+    ESP_LOGI(TAG, "Seed Mbedtls");
     if ((ret = mbedtls_ctr_drbg_seed(ctr_drbg, mbedtls_entropy_func, entropy,
                                      (const unsigned char *)pers,
                                      strlen(pers))) != 0)
     {
-        ESP_LOGE(TAG, " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);
+        ESP_LOGE(TAG, " failed\n  ! mbedtls_ctr_drbg_seed returned %d", ret);
         reboot();
     }
 }
@@ -54,7 +54,7 @@ bool crypto_gen_priv_key()
     mbedtls_ctr_drbg_context ctr_drbg;
     seed_ctr_drbg_context(&entropy, &ctr_drbg);
 
-    ESP_LOGI(TAG, "PK info from type\n");
+    ESP_LOGI(TAG, "PK info from type");
     if ((ret = mbedtls_pk_setup(&key, mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY))) != 0)
     {
         ESP_LOGE(TAG, " failed\n  !  mbedtls_pk_setup returned -0x%04x", (unsigned int)-ret);
@@ -62,7 +62,7 @@ bool crypto_gen_priv_key()
     }
 
     // Generate private key
-    ESP_LOGI(TAG, "Generate private key\n");
+    ESP_LOGI(TAG, "Generate private key");
     ret = mbedtls_ecp_gen_key(ECPARAMS,
                               mbedtls_pk_ec(key),
                               mbedtls_ctr_drbg_random, &ctr_drbg);
@@ -74,7 +74,7 @@ bool crypto_gen_priv_key()
     }
 
     // Export private key
-    ESP_LOGI(TAG, "Export private key\n");
+    ESP_LOGI(TAG, "Export private key");
     unsigned char *key_buff = malloc(PRV_KEY_DER_MAX_BYTES);
     if ((ret = mbedtls_pk_write_key_der(&key, key_buff, PRV_KEY_DER_MAX_BYTES)) < 1)
     {
@@ -108,7 +108,7 @@ void crypto_print_priv_key()
     mbedtls_ctr_drbg_context ctr_drbg;
     seed_ctr_drbg_context(&entropy, &ctr_drbg);
 
-    ESP_LOGI(TAG, "Parse private key (len = %d)\n", key_len);
+    ESP_LOGI(TAG, "Parse private key (len = %d)", key_len);
     if ((ret = mbedtls_pk_parse_key(&key, key_buff, key_len, NULL, 0, mbedtls_ctr_drbg_random, &ctr_drbg)) != 0)
     {
         ESP_LOGE(TAG, " failed\n  !  mbedtls_pk_parse_key returned -0x%04x",
@@ -117,7 +117,7 @@ void crypto_print_priv_key()
     }
     free(key_buff);
 
-    ESP_LOGI(TAG, "Show private key\n");
+    ESP_LOGI(TAG, "Show private key");
     unsigned char *out = malloc(16000);
     memset(out, 0, 16000);
     if ((ret = mbedtls_pk_write_key_pem(&key, out, 16000)) != 0)
@@ -153,7 +153,7 @@ static bool crypto_get_priv_key_mpi(mbedtls_mpi *dst)
     mbedtls_ctr_drbg_context ctr_drbg;
     seed_ctr_drbg_context(&entropy, &ctr_drbg);
 
-    ESP_LOGI(TAG, "Parse private key (len = %d)\n", key_len);
+    ESP_LOGI(TAG, "Parse private key (len = %d)", key_len);
     if ((ret = mbedtls_pk_parse_key(&key, key_buff, key_len, NULL, 0, mbedtls_ctr_drbg_random, &ctr_drbg)) != 0)
     {
         ESP_LOGE(TAG, " failed\n  !  mbedtls_pk_parse_key returned -0x%04x",
@@ -190,7 +190,7 @@ char *crypto_get_csr()
     mbedtls_ctr_drbg_context ctr_drbg;
     seed_ctr_drbg_context(&entropy, &ctr_drbg);
 
-    ESP_LOGI(TAG, "Parse private key (len = %d)\n", key_len);
+    ESP_LOGI(TAG, "Parse private key (len = %d)", key_len);
     if ((ret = mbedtls_pk_parse_key(&key, key_buff, key_len, NULL, 0, mbedtls_ctr_drbg_random, &ctr_drbg)) != 0)
     {
         ESP_LOGE(TAG, " failed\n  !  mbedtls_pk_parse_key returned -0x%04x",
@@ -214,7 +214,7 @@ char *crypto_get_csr()
         reboot();
     }
 
-    ESP_LOGI(TAG, "Sign CSR with private key\n");
+    ESP_LOGI(TAG, "Sign CSR with private key");
     mbedtls_x509write_csr_set_key(&req, &key);
 
     char *csr = malloc(4096);

esp32_device/main/dev_name.c

@@ -33,7 +33,7 @@ char *dev_name()
     char *dev = malloc(len + strlen(DEV_PREFIX) + 1);
     if (dev == NULL)
     {
-        ESP_LOGE(TAG, "Failed to allocate memory to store dev name!\n");
+        ESP_LOGE(TAG, "Failed to allocate memory to store dev name!");
         return NULL;
     }
 

esp32_device/main/ethernet.c

@@ -84,8 +84,8 @@ void ethernet_init()
     eth_esp32_emac_config_t mac_config = ETH_ESP32_EMAC_DEFAULT_CONFIG();
     mac_config.clock_config.rmii.clock_mode = EMAC_CLK_EXT_IN;
     mac_config.clock_config.rmii.clock_gpio = EMAC_CLK_IN_GPIO;
-    mac_config.smi_mdc_gpio_num = GPIO_NUM_23;
-    mac_config.smi_mdio_gpio_num = GPIO_NUM_18;
+    mac_config.smi_gpio.mdc_num = GPIO_NUM_23;
+    mac_config.smi_gpio.mdio_num = GPIO_NUM_18;
 
     eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
     eth_mac_config.sw_reset_timeout_ms = 1000;

esp32_device/main/main.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include "esp_system.h"
 #include "esp_log.h"
+#include "esp_app_desc.h"
 
 #include "dev_name.h"
 #include "storage.h"
@@ -10,54 +11,60 @@
 #include "secure_api.h"
 #include "ethernet.h"
 #include "constants.h"
+#include "relays.h"
+#include "ota.h"
 
 static const char *TAG = "main";
 
 void app_main(void)
 {
-    esp_log_level_set("*", ESP_LOG_VERBOSE);
+    esp_log_level_set("*", ESP_LOG_INFO);
 
     system_show_free_memory();
 
-    ESP_LOGI(TAG, "SolarEnergy WT32-ETH01 device");
+    ESP_LOGI(TAG, "SolarEnergy WT32-ETH01 device version %s", esp_app_get_description()->version);
+
+    // Turn off all relays
+    relays_turn_off_all();
+    relays_setup();
 
     // Initialize storage
     if (storage_init() == false)
     {
-        ESP_LOGE(TAG, "Failed to init storage!\n");
+        ESP_LOGE(TAG, "Failed to init storage!");
         reboot();
     }
 
     // Give a name to the device
     if (dev_generate_name())
     {
-        ESP_LOGI(TAG, "Generated a new device name\n");
+        ESP_LOGI(TAG, "Generated a new device name");
     }
 
     char *name = dev_name();
-    ESP_LOGI(TAG, "Dev name: %s\n", name);
+    ESP_LOGI(TAG, "Dev name: %s", name);
     free(name);
 
     // Generate private key, if needed
     if (crypto_gen_priv_key())
     {
-        ESP_LOGI(TAG, "Generated device private key!\n");
+        ESP_LOGI(TAG, "Generated device private key!");
     }
-    ESP_LOGI(TAG, "Device private key:\n");
+    ESP_LOGI(TAG, "Device private key:");
     crypto_print_priv_key();
 
     // Show current private key
     char *csr = crypto_get_csr();
-    ESP_LOGI(TAG, "Current CSR:\n%s\n", csr);
+    ESP_LOGI(TAG, "Current CSR:\n%s", csr);
     free(csr);
 
     // Initialize network stack
-    ESP_LOGI(TAG, "Initialize network\n");
+    ESP_LOGI(TAG, "Initialize network");
     ethernet_init();
     ethernet_wait_for_network();
 
     // Get if secure origin endpoint is known
-    ESP_LOGI(TAG, "Check secure origin\n");
+    ESP_LOGI(TAG, "Check secure origin");
     if (storage_get_secure_origin(NULL) == 0)
     {
         char *sec_ori = unsecure_api_get_secure_origin();
@@ -71,7 +78,7 @@ void app_main(void)
     }
 
     // Print secure origin endpoint for debugging purposes
-    ESP_LOGI(TAG, "Get secure origin\n");
+    ESP_LOGI(TAG, "Get secure origin");
     char *sec_ori = calloc(SEC_ORIG_LEN, 1);
     assert(storage_get_secure_origin(sec_ori) > 0);
     ESP_LOGI(TAG, "Current secure origin: %s", sec_ori);
@@ -104,7 +111,7 @@ void app_main(void)
         // Check current device enrollment status
         ESP_LOGI(TAG, "Check enrollment status");
         enum DevEnrollmentStatus status = secure_api_get_device_enrollment_status();
-        ESP_LOGI(TAG, "Current enrollment status: %d\n", status);
+        ESP_LOGI(TAG, "Current enrollment status: %d", status);
 
         switch (status)
         {
@@ -166,23 +173,74 @@ void app_main(void)
 
     // Main loop
     ESP_LOGI(TAG, "Starting main loop");
+    secure_api_report_log_message(Info, "Starting program main loop");
 
-    // TODO : implement more properly
+    size_t fails = 0;
     while (true)
     {
-        if (!secure_api_sync_device())
+        sync_response *res = secure_api_sync_device();
+        if (!res)
         {
-            ESP_LOGE(TAG, "Failed to synchronise device!");
+            fails += 1;
+            ESP_LOGE(TAG, "Failed to synchronise device! (number=%d)", fails);
+
+            // Safely turn off all relays after a given number of failures
+            if (fails > 5)
+            {
+                ESP_LOGE(TAG, "Many failures, will stop all relays...");
+                relays_turn_off_all();
+            }
+
+            // Restart the card after too much failures
+            if (fails > 10)
+            {
+                ESP_LOGE(TAG, "Too many failures, will try to reboot in 3 secs...");
+                system_sleep(3);
+                reboot();
+            }
+
+            system_sleep(SYNC_TIME_INTERVAL);
+            continue;
+        }
+
+        fails = 0;
+
+        sync_response_print(res);
+
+        // Check for firmware update
+        if (res->available_update)
+        {
+            ESP_LOGI(TAG, "Will perform system upgrade to version %s!", res->available_update);
+            relays_turn_off_all();
+
+            secure_api_report_log_message(Info, "Device is starting the OTA procedure...");
+
+            if (ota_perform_update(res->available_update))
+            {
+                ESP_LOGI(TAG, "OTA update succesfully executed, will reboot...");
+                secure_api_report_log_message(Info, "Device successfully updated!");
             }
             else
             {
-            ESP_LOGI(TAG, "Successfully synchronised device!");
+                ESP_LOGE(TAG, "OTA update failed! Will reboot...");
+                secure_api_report_log_message(Error, "Device update failed!");
             }
 
-        system_sleep(10);
+            secure_api_report_log_message(Info, "Device will restart after OTA procedure...");
+
+            system_sleep(SYNC_TIME_INTERVAL);
+            reboot();
         }
 
-    system_sleep(120);
+        // Update relays configuration
+        for (size_t i = 0; i < relays_count(); i++)
+        {
+            relays_set(i, sync_response_is_relay_on(res, i));
+        }
+
+        sync_response_free(res);
+        system_sleep(SYNC_TIME_INTERVAL);
+    }
 
     reboot();
 }

esp32_device/main/ota.c

@@ -0,0 +1,232 @@
+#include "esp_log.h"
+#include "esp_partition.h"
+#include "esp_ota_ops.h"
+#include "esp_http_client.h"
+#include "esp_app_format.h"
+#include "constants.h"
+
+#include "ota.h"
+#include "storage.h"
+#include "secure_api.h"
+
+#include <string.h>
+
+const char *TAG = "ota";
+
+#define BUFF_SIZE 1024
+
+static void http_cleanup(esp_http_client_handle_t client)
+{
+    esp_http_client_close(client);
+    esp_http_client_cleanup(client);
+}
+
+bool ota_perform_update(const char *version)
+{
+    const esp_partition_t *configured = esp_ota_get_boot_partition();
+    const esp_partition_t *running = esp_ota_get_running_partition();
+
+    if (configured != running)
+    {
+        ESP_LOGW(TAG, "Configured OTA boot partition at offset 0x%08" PRIx32 ", but running from offset 0x%08" PRIx32,
+                 configured->address, running->address);
+        ESP_LOGW(TAG, "(This can happen if either the OTA boot data or preferred boot image become corrupted somehow.)");
+    }
+
+    ESP_LOGI(TAG, "Running partition type %d subtype %d (offset 0x%08" PRIx32 ")",
+             running->type, running->subtype, running->address);
+
+    // Determine firmware download URL
+    char *update_url = calloc(256, 1);
+    assert(update_url != NULL);
+    assert(storage_get_secure_origin(update_url) > 0);
+    strcat(update_url, "/devices_api/ota/Wt32-Eth01/");
+    strcat(update_url, version);
+    ESP_LOGI(TAG, "Firmware URL: %s", update_url);
+
+    char *root_ca = calloc(1, ROOT_CA_MAX_BYTES);
+    assert(root_ca);
+    assert(storage_get_root_ca(root_ca) > 0);
+
+    esp_http_client_config_t config = {
+        .url = update_url,
+        .cert_pem = root_ca,
+        .timeout_ms = OTA_REC_TIMEOUT,
+        .keep_alive_enable = true,
+    };
+
+    esp_http_client_handle_t client = esp_http_client_init(&config);
+
+    if (client == NULL)
+    {
+        ESP_LOGE(TAG, "Failed to initialise HTTP connection");
+        free(update_url);
+        free(root_ca);
+        return false;
+    }
+
+    int err = esp_http_client_open(client, 0);
+    free(update_url);
+    free(root_ca);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to open HTTP connection: %s", esp_err_to_name(err));
+        esp_http_client_cleanup(client);
+        return false;
+    }
+
+    esp_http_client_fetch_headers(client);
+
+    const esp_partition_t *update_partition = esp_ota_get_next_update_partition(NULL);
+    assert(update_partition != NULL);
+    ESP_LOGI(TAG, "Writing to partition subtype %d at offset 0x%" PRIx32,
+             update_partition->subtype, update_partition->address);
+
+    // OTA update loop
+    int binary_file_length = 0;
+    esp_ota_handle_t update_handle = 0;
+    /*deal with all receive packet*/
+    bool image_header_was_checked = false;
+    char *ota_write_data = calloc(BUFF_SIZE + 1, 1);
+    while (1)
+    {
+        int data_read = esp_http_client_read(client, ota_write_data, BUFF_SIZE);
+        if (data_read < 0)
+        {
+            ESP_LOGE(TAG, "Error: SSL data read error");
+            http_cleanup(client);
+            free(ota_write_data);
+            return false;
+        }
+
+        if (data_read == 0)
+        {
+            /*
+             * As esp_http_client_read never returns negative error code, we rely on
+             * `errno` to check for underlying transport connectivity closure if any
+             */
+            if (errno == ECONNRESET || errno == ENOTCONN)
+            {
+                ESP_LOGE(TAG, "Connection closed, errno = %d", errno);
+                break;
+            }
+            if (esp_http_client_is_complete_data_received(client) == true)
+            {
+                ESP_LOGI(TAG, "Connection closed");
+                break;
+            }
+
+            // No data received yet
+            continue;
+        }
+
+        if (image_header_was_checked == false)
+        {
+            esp_app_desc_t new_app_info;
+            if (data_read > sizeof(esp_image_header_t) + sizeof(esp_image_segment_header_t) + sizeof(esp_app_desc_t))
+            {
+                // check current version with downloading
+                memcpy(&new_app_info, &ota_write_data[sizeof(esp_image_header_t) + sizeof(esp_image_segment_header_t)], sizeof(esp_app_desc_t));
+                ESP_LOGI(TAG, "New firmware version: %s", new_app_info.version);
+
+                esp_app_desc_t running_app_info;
+                if (esp_ota_get_partition_description(running, &running_app_info) == ESP_OK)
+                {
+                    ESP_LOGI(TAG, "Running firmware version: %s", running_app_info.version);
+                }
+
+                const esp_partition_t *last_invalid_app = esp_ota_get_last_invalid_partition();
+                esp_app_desc_t invalid_app_info;
+                if (esp_ota_get_partition_description(last_invalid_app, &invalid_app_info) == ESP_OK)
+                {
+                    ESP_LOGI(TAG, "Last invalid firmware version: %s", invalid_app_info.version);
+                }
+
+                // check current version with last invalid partition
+                if (last_invalid_app != NULL)
+                {
+                    if (memcmp(invalid_app_info.version, new_app_info.version, sizeof(new_app_info.version)) == 0)
+                    {
+
+                        ESP_LOGW(TAG, "New version is the same as invalid version.");
+                        ESP_LOGW(TAG, "Previously, there was an attempt to launch the firmware with %s version, but it failed.", invalid_app_info.version);
+                        ESP_LOGW(TAG, "The firmware has been rolled back to the previous version.");
+                        http_cleanup(client);
+                        free(ota_write_data);
+                        secure_api_report_log_message(Error, "New version is the same as last invalid version. Could not perform update!");
+                        return false;
+                    }
+                }
+
+                image_header_was_checked = true;
+
+                err = esp_ota_begin(update_partition, OTA_WITH_SEQUENTIAL_WRITES, &update_handle);
+                if (err != ESP_OK)
+                {
+                    ESP_LOGE(TAG, "esp_ota_begin failed (%s)", esp_err_to_name(err));
+                    http_cleanup(client);
+                    free(ota_write_data);
+                    esp_ota_abort(update_handle);
+                    return false;
+                }
+                ESP_LOGI(TAG, "esp_ota_begin succeeded");
+            }
+            else
+            {
+                ESP_LOGE(TAG, "received package is not fit len");
+                http_cleanup(client);
+                free(ota_write_data);
+                esp_ota_abort(update_handle);
+                return false;
+            }
+        }
+        err = esp_ota_write(update_handle, (const void *)ota_write_data, data_read);
+        if (err != ESP_OK)
+        {
+            http_cleanup(client);
+            free(ota_write_data);
+            esp_ota_abort(update_handle);
+            return false;
+        }
+        binary_file_length += data_read;
+        ESP_LOGD(TAG, "Written image length %d", binary_file_length);
+    }
+    free(ota_write_data);
+
+    ESP_LOGI(TAG, "Total Write binary data length: %d", binary_file_length);
+    if (esp_http_client_is_complete_data_received(client) != true)
+    {
+        ESP_LOGE(TAG, "Error in receiving complete file");
+        http_cleanup(client);
+        esp_ota_abort(update_handle);
+        return false;
+    }
+
+    err = esp_ota_end(update_handle);
+    if (err != ESP_OK)
+    {
+        if (err == ESP_ERR_OTA_VALIDATE_FAILED)
+        {
+            ESP_LOGE(TAG, "Image validation failed, image is corrupted");
+        }
+        else
+        {
+            ESP_LOGE(TAG, "esp_ota_end failed (%s)!", esp_err_to_name(err));
+        }
+        http_cleanup(client);
+        return false;
+    }
+
+    err = esp_ota_set_boot_partition(update_partition);
+    if (err != ESP_OK)
+    {
+        ESP_LOGE(TAG, "esp_ota_set_boot_partition failed (%s)!", esp_err_to_name(err));
+        http_cleanup(client);
+
+        return false;
+    }
+
+    ESP_LOGI(TAG, "End of OTA procedure!");
+
+    return true;
+}

esp32_device/main/ota.h

@@ -0,0 +1,24 @@
+/**
+ * OTA functions
+ */
+
+#pragma once
+
+#include <stddef.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /**
+     * Update device to a desired version
+     *
+     * Returns TRUE in case of success / FALSE otherwise
+     */
+    bool ota_perform_update(const char *version);
+
+#ifdef __cplusplus
+}
+#endif

esp32_device/main/relays.c

@@ -0,0 +1,63 @@
+#include <driver/gpio.h>
+#include "esp_log.h"
+
+#include "relays.h"
+#include "constants.h"
+
+static const char *TAG = "relays";
+
+/**
+ * Device relays GPIO ids
+ */
+static int DEVICE_GPIO_IDS[3] = {4, 14, 15};
+
+int relays_count()
+{
+    return sizeof(DEVICE_GPIO_IDS) / sizeof(int);
+}
+
+void relays_setup()
+{
+    int pin_bit_mask = 0;
+    for (size_t i = 0; i < relays_count(); i++)
+    {
+        pin_bit_mask |= 1ULL << DEVICE_GPIO_IDS[i];
+    }
+
+    // zero-initialize the config structure.
+    gpio_config_t io_conf = {};
+    // disable interrupt
+    io_conf.intr_type = GPIO_INTR_DISABLE;
+    // set as output mode
+    io_conf.mode = GPIO_MODE_OUTPUT;
+    // bit mask of the pins that you want to set,e.g.GPIO18/19
+    io_conf.pin_bit_mask = pin_bit_mask;
+    // disable pull-down mode
+    io_conf.pull_down_en = 0;
+    // disable pull-up mode
+    io_conf.pull_up_en = 0;
+    // configure GPIO with the given settings
+    gpio_config(&io_conf);
+}
+
+void relays_turn_off_all()
+{
+    ESP_LOGI(TAG, "Turning off all relays...");
+
+    for (size_t i = 0; i < relays_count(); i++)
+    {
+        relays_set(i, false);
+    }
+}
+
+void relays_set(int number, bool is_on)
+{
+    size_t gpio_id = DEVICE_GPIO_IDS[number];
+    ESP_LOGI(TAG, "Set relay %d (gpio %d) to %s", number, gpio_id, is_on ? "on" : "off");
+
+    int res = gpio_set_level(gpio_id, is_on ? 0 : 1);
+    if (res != ESP_OK)
+    {
+        ESP_LOGE(TAG, "Failed to toggle GPIO %d : %d", gpio_id, res);
+    }
+}

esp32_device/main/relays.h

@@ -0,0 +1,36 @@
+/**
+ * Relays management
+ */
+
+#pragma once
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /**
+     * Get the max number of relays
+     */
+    int relays_count();
+
+    /**
+     * Configure the relays
+     */
+    void relays_setup();
+
+    /**
+     * Turn off all relays
+     */
+    void relays_turn_off_all();
+
+    /**
+     * Turn on / off a relay
+     */
+    void relays_set(int number, bool is_on);
+
+#ifdef __cplusplus
+}
+#endif

esp32_device/main/secure_api.c

@@ -11,8 +11,10 @@
 #include "storage.h"
 #include "http_client.h"
 #include "jwt.h"
+#include "relays.h"
 
 #include "esp_log.h"
+#include "esp_app_desc.h"
 
 static const char *TAG = "secure_api";
 
@@ -117,12 +119,14 @@ fail:
  */
 static cJSON *genDevInfo()
 {
+    const esp_app_desc_t *desc = esp_app_get_description();
+
     cJSON *json = cJSON_CreateObject();
     if (!json)
         return NULL;
     cJSON_AddStringToObject(json, "reference", DEV_REFERENCE);
-    cJSON_AddStringToObject(json, "version", DEV_VERSION);
-    cJSON_AddNumberToObject(json, "max_relays", DEV_MAX_RELAYS);
+    cJSON_AddStringToObject(json, "version", desc->version);
+    cJSON_AddNumberToObject(json, "max_relays", relays_count());
     return json;
 }
 
@@ -148,16 +152,16 @@ int secure_api_enroll_device()
     free(csr);
 
     char *body = cJSON_PrintUnformatted(obj);
+    cJSON_Delete(obj);
+
     if (!body)
     {
         ESP_LOGE(TAG, "Failed to generate JSON body!");
-        cJSON_Delete(obj);
         return 1;
     }
 
     char *res = process_secure_request("/devices_api/mgmt/enroll", body);
 
-    cJSON_Delete(obj);
     free(body);
 
     if (res == NULL)
@@ -195,7 +199,78 @@ char *secure_api_get_dev_certificate()
     return res;
 }
 
-void *secure_api_sync_device()
+void secure_api_report_log_message(enum LogMessageSeverity severity, const char *msg)
+{
+    // Prepare signed payload
+    cJSON *obj = cJSON_CreateObject();
+    if (!obj)
+    {
+        ESP_LOGE(TAG, "Failed allocate memory to store JSON object!");
+        return;
+    }
+
+    char *severity_s;
+    switch (severity)
+    {
+    case Info:
+        severity_s = "Info";
+        break;
+    case Warn:
+        severity_s = "Warn";
+        break;
+    case Error:
+        severity_s = "Error";
+        break;
+    default:
+        severity_s = "Debug";
+        break;
+    }
+
+    cJSON_AddStringToObject(obj, "severity", severity_s);
+    cJSON_AddStringToObject(obj, "message", msg);
+    char *payload = jwt_gen(obj);
+    cJSON_Delete(obj);
+
+    if (!payload)
+    {
+        ESP_LOGE(TAG, "Failed to build log report request!");
+        return;
+    }
+
+    // Prepare request body
+    cJSON *json_body = cJSON_CreateObject();
+    if (!json_body)
+    {
+        ESP_LOGE(TAG, "Failed to allocated memory to store log report request body!");
+        free(payload);
+        return;
+    }
+    cJSON_AddStringToObject(json_body, "payload", payload);
+    free(payload);
+
+    char *body = cJSON_PrintUnformatted(json_body);
+    cJSON_Delete(json_body);
+
+    if (!body)
+    {
+        ESP_LOGE(TAG, "Failed to allocated memory to store encoded log report request body!");
+        return;
+    }
+
+    // Send request
+    char *res = process_secure_request("/devices_api/logging/record", body);
+
+    free(body);
+
+    if (!res)
+    {
+        ESP_LOGE(TAG, "Log reporting failed!");
+    }
+
+    free(res);
+}
+
+sync_response *secure_api_sync_device()
 {
     cJSON *obj = cJSON_CreateObject();
     if (!obj)
@@ -215,10 +290,54 @@ void *secure_api_sync_device()
         return NULL;
     }
 
-    printf("JWT: %s\n", encoded_req);
+    // Prepare request body
+    cJSON *json_body = cJSON_CreateObject();
+    if (!json_body)
+    {
+        ESP_LOGE(TAG, "Failed to allocated memory to store sync request body!");
+        free(encoded_req);
+        return NULL;
+    }
+    cJSON_AddStringToObject(json_body, "payload", encoded_req);
     free(encoded_req);
 
-    // TODO : replace
-    printf("here implement sync device logic\n");
+    char *body = cJSON_PrintUnformatted(json_body);
+    cJSON_Delete(json_body);
+
+    if (!body)
+    {
+        ESP_LOGE(TAG, "Failed to allocated memory to store encoded sync request body!");
         return NULL;
+    }
+
+    // Send request
+    char *res = process_secure_request("/devices_api/mgmt/sync", body);
+    free(body);
+    if (res == NULL)
+    {
+        ESP_LOGE(TAG, "Sync request failed!");
+        return NULL;
+    }
+
+    // Parse response
+    cJSON *states = cJSON_Parse(res);
+    free(res);
+
+    if (!states)
+    {
+        ESP_LOGE(TAG, "Failed to decode sync response from server!");
+        return NULL;
+    }
+
+    sync_response *sync_res = sync_response_parse(states);
+
+    cJSON_Delete(states);
+
+    if (!sync_res)
+    {
+        ESP_LOGE(TAG, "Failed to parse sync response from server!");
+        return NULL;
+    }
+
+    return sync_res;
 }

esp32_device/main/secure_api.h

@@ -2,6 +2,11 @@
  * Secure API functions
  */
 
+#include <stddef.h>
+#include <stdbool.h>
+
+#include "sync_response.h"
+
 #pragma once
 
 #ifdef __cplusplus
@@ -24,6 +29,17 @@ extern "C"
         DevEnrollValidated = 3,
     };
 
+    /**
+     * Log message severity
+     */
+    enum LogMessageSeverity
+    {
+        Debug = 0,
+        Info,
+        Warn,
+        Error
+    };
+
     /**
      * Get current device enrollment status
      */
@@ -40,12 +56,17 @@ extern "C"
      */
     char *secure_api_get_dev_certificate();
 
+    /**
+     * Report log message to backend
+     */
+    void secure_api_report_log_message(enum LogMessageSeverity severity, const char *msg);
+
     /**
      * Synchronise device with central backend
      *
      * Returns NULL in case of failure
      */
-    void *secure_api_sync_device();
+    sync_response *secure_api_sync_device();
 
 #ifdef __cplusplus
 }

esp32_device/main/storage.c

@@ -20,7 +20,7 @@ bool storage_init()
     esp_err_t err = nvs_flash_init();
     if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND)
     {
-        ESP_LOGI(TAG, "Need to reset storage\n");
+        ESP_LOGI(TAG, "Need to reset storage");
 
         // NVS partition was truncated and needs to be erased
         // Retry nvs_flash_init

esp32_device/main/sync_response.c

@@ -0,0 +1,96 @@
+#include "sync_response.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <esp_log.h>
+
+const static char *TAG = "sync_response";
+
+sync_response *sync_response_parse(cJSON *res)
+{
+    // Parse relays information
+    cJSON *relays_json = cJSON_GetObjectItem(res, "relays");
+    if (relays_json == NULL)
+    {
+        ESP_LOGE(TAG, "Missing relays status in sync response!");
+        return NULL;
+    }
+
+    int relays_size = cJSON_GetArraySize(relays_json);
+    sync_response *sync_res = calloc(1, sizeof(sync_response) + relays_size * sizeof(bool));
+
+    if (!sync_res)
+    {
+        ESP_LOGE(TAG, "Failed to allocate memory to store synchronization response!");
+        return NULL;
+    }
+
+    sync_res->len = relays_size;
+
+    for (int i = 0; i < sync_res->len; i++)
+    {
+        sync_res->relays[i] = false;
+
+        cJSON *item = cJSON_GetArrayItem(relays_json, i);
+        assert(item != NULL);
+        cJSON *enabled = cJSON_GetObjectItem(item, "enabled");
+
+        if (enabled == NULL)
+        {
+            ESP_LOGE(TAG, "At least a relay is missing the enabled field. Assuming false.");
+            continue;
+        }
+
+        if (cJSON_IsTrue(enabled))
+        {
+            sync_res->relays[i] = true;
+        }
+    }
+
+    // Parse firmware update information
+    cJSON *update = cJSON_GetObjectItem(res, "available_update");
+    if (update != NULL)
+    {
+        char *val = cJSON_GetStringValue(update);
+        sync_res->available_update = val != NULL ? strdup(val) : NULL;
+    }
+
+    return sync_res;
+}
+
+void sync_response_print(sync_response *res)
+{
+    ESP_LOGI(TAG, " === sync response begin === ");
+
+    if (res->available_update != NULL)
+    {
+        ESP_LOGI(TAG, "> AVAILABLE UPDATE! Version %s", res->available_update);
+    }
+
+    ESP_LOGI(TAG, "# of relays: %d", res->len);
+    for (size_t i = 0; i < res->len; i++)
+        ESP_LOGI(TAG, "Relay[%d]=%s", i, res->relays[i] ? "ON" : "off");
+    ESP_LOGI(TAG, " === sync response end === ");
+}
+
+void sync_response_free(sync_response *res)
+{
+    if (res == NULL)
+        return;
+
+    if (res->available_update != NULL)
+        free(res->available_update);
+
+    free(res);
+}
+
+bool sync_response_is_relay_on(sync_response *res, int relay_number)
+{
+    if (res->len <= relay_number)
+    {
+        ESP_LOGW(TAG, "Requested state of an unconfigured relay (%d). Defaulting to off.", relay_number);
+        return false;
+    }
+
+    return res->relays[relay_number];
+}

esp32_device/main/sync_response.h

@@ -0,0 +1,45 @@
+/**
+ * Synchronisation response
+ */
+
+#pragma once
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <cJSON.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    typedef struct sync_response
+    {
+        size_t len;
+        char *available_update;
+        bool relays[];
+    } sync_response;
+
+    /**
+     * Decode synchronize response from server
+     */
+    sync_response *sync_response_parse(cJSON *res);
+
+    /**
+     * Print synchronize reponse content
+     */
+    void sync_response_print(sync_response *res);
+
+    /**
+     * Free memory allocated for synchronize response
+     */
+    void sync_response_free(sync_response *res);
+
+    /**
+     * Check the desired status of a relay
+     */
+    bool sync_response_is_relay_on(sync_response *res, int relay_number);
+
+#ifdef __cplusplus
+}
+#endif

esp32_device/sdkconfig

@@ -1,6 +1,6 @@
 #
 # Automatically generated file. DO NOT EDIT.
-# Espressif IoT Development Framework (ESP-IDF) 5.2.2 Project Configuration
+# Espressif IoT Development Framework (ESP-IDF) 5.3.1 Project Configuration
 #
 CONFIG_SOC_BROWNOUT_RESET_SUPPORTED="Not determined"
 CONFIG_SOC_TWAI_BRP_DIV_SUPPORTED="Not determined"
@@ -14,6 +14,7 @@ CONFIG_SOC_GPTIMER_SUPPORTED=y
 CONFIG_SOC_SDMMC_HOST_SUPPORTED=y
 CONFIG_SOC_BT_SUPPORTED=y
 CONFIG_SOC_PCNT_SUPPORTED=y
+CONFIG_SOC_PHY_SUPPORTED=y
 CONFIG_SOC_WIFI_SUPPORTED=y
 CONFIG_SOC_SDIO_SLAVE_SUPPORTED=y
 CONFIG_SOC_TWAI_SUPPORTED=y
@@ -43,6 +44,11 @@ CONFIG_SOC_CLK_TREE_SUPPORTED=y
 CONFIG_SOC_MPU_SUPPORTED=y
 CONFIG_SOC_WDT_SUPPORTED=y
 CONFIG_SOC_SPI_FLASH_SUPPORTED=y
+CONFIG_SOC_RNG_SUPPORTED=y
+CONFIG_SOC_LIGHT_SLEEP_SUPPORTED=y
+CONFIG_SOC_DEEP_SLEEP_SUPPORTED=y
+CONFIG_SOC_LP_PERIPH_SHARE_INTERRUPT=y
+CONFIG_SOC_PM_SUPPORTED=y
 CONFIG_SOC_DPORT_WORKAROUND_DIS_INTERRUPT_LVL=5
 CONFIG_SOC_XTAL_SUPPORT_26M=y
 CONFIG_SOC_XTAL_SUPPORT_40M=y
@@ -84,7 +90,9 @@ CONFIG_SOC_GPIO_IN_RANGE_MAX=39
 CONFIG_SOC_GPIO_OUT_RANGE_MAX=33
 CONFIG_SOC_GPIO_VALID_DIGITAL_IO_PAD_MASK=0xEF0FEA
 CONFIG_SOC_GPIO_CLOCKOUT_BY_IO_MUX=y
+CONFIG_SOC_GPIO_CLOCKOUT_CHANNEL_NUM=3
 CONFIG_SOC_I2C_NUM=2
+CONFIG_SOC_HP_I2C_NUM=2
 CONFIG_SOC_I2C_FIFO_LEN=32
 CONFIG_SOC_I2C_CMD_REG_NUM=16
 CONFIG_SOC_I2C_SUPPORT_SLAVE=y
@@ -164,9 +172,9 @@ CONFIG_SOC_TIMER_GROUP_TIMERS_PER_GROUP=2
 CONFIG_SOC_TIMER_GROUP_COUNTER_BIT_WIDTH=64
 CONFIG_SOC_TIMER_GROUP_TOTAL_TIMERS=4
 CONFIG_SOC_TIMER_GROUP_SUPPORT_APB=y
-CONFIG_SOC_TOUCH_VERSION_1=y
+CONFIG_SOC_TOUCH_SENSOR_VERSION=1
 CONFIG_SOC_TOUCH_SENSOR_NUM=10
-CONFIG_SOC_TOUCH_PAD_MEASURE_WAIT_MAX=0xFF
+CONFIG_SOC_TOUCH_SAMPLE_CFG_NUM=1
 CONFIG_SOC_TWAI_CONTROLLER_NUM=1
 CONFIG_SOC_TWAI_BRP_MIN=2
 CONFIG_SOC_TWAI_CLK_SUPPORT_APB=y
@@ -222,8 +230,10 @@ CONFIG_SOC_BLE_SUPPORTED=y
 CONFIG_SOC_BLE_MESH_SUPPORTED=y
 CONFIG_SOC_BT_CLASSIC_SUPPORTED=y
 CONFIG_SOC_BLUFI_SUPPORTED=y
+CONFIG_SOC_BT_H2C_ENC_KEY_CTRL_ENH_VSC_SUPPORTED=y
 CONFIG_SOC_ULP_HAS_ADC=y
 CONFIG_SOC_PHY_COMBO_MODULE=y
+CONFIG_SOC_EMAC_RMII_CLK_OUT_INTERNAL_LOOPBACK=y
 CONFIG_IDF_CMAKE=y
 CONFIG_IDF_TOOLCHAIN="gcc"
 CONFIG_IDF_TARGET_ARCH_XTENSA=y
@@ -319,9 +329,13 @@ CONFIG_ESP_ROM_HAS_MZ_CRC32=y
 CONFIG_ESP_ROM_HAS_JPEG_DECODE=y
 CONFIG_ESP_ROM_HAS_UART_BUF_SWITCH=y
 CONFIG_ESP_ROM_NEEDS_SWSETUP_WORKAROUND=y
+CONFIG_ESP_ROM_HAS_NEWLIB=y
 CONFIG_ESP_ROM_HAS_NEWLIB_NANO_FORMAT=y
+CONFIG_ESP_ROM_HAS_NEWLIB_32BIT_TIME=y
 CONFIG_ESP_ROM_HAS_SW_FLOAT=y
+CONFIG_ESP_ROM_USB_OTG_NUM=-1
 CONFIG_ESP_ROM_USB_SERIAL_DEVICE_NUM=-1
+CONFIG_ESP_ROM_SUPPORT_DEEP_SLEEP_WAKEUP_STUB=y
 
 #
 # Serial flasher config
@@ -339,14 +353,14 @@ CONFIG_ESPTOOLPY_FLASHFREQ_40M=y
 # CONFIG_ESPTOOLPY_FLASHFREQ_20M is not set
 CONFIG_ESPTOOLPY_FLASHFREQ="40m"
 # CONFIG_ESPTOOLPY_FLASHSIZE_1MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE_2MB=y
-# CONFIG_ESPTOOLPY_FLASHSIZE_4MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_2MB is not set
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 # CONFIG_ESPTOOLPY_FLASHSIZE_8MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_16MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_32MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_64MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_128MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE="2MB"
+CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
 # CONFIG_ESPTOOLPY_HEADER_FLASHSIZE_UPDATE is not set
 CONFIG_ESPTOOLPY_BEFORE_RESET=y
 # CONFIG_ESPTOOLPY_BEFORE_NORESET is not set
@@ -360,12 +374,12 @@ CONFIG_ESPTOOLPY_MONITOR_BAUD=115200
 #
 # Partition Table
 #
-CONFIG_PARTITION_TABLE_SINGLE_APP=y
+# CONFIG_PARTITION_TABLE_SINGLE_APP is not set
 # CONFIG_PARTITION_TABLE_SINGLE_APP_LARGE is not set
-# CONFIG_PARTITION_TABLE_TWO_OTA is not set
+CONFIG_PARTITION_TABLE_TWO_OTA=y
 # CONFIG_PARTITION_TABLE_CUSTOM is not set
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
-CONFIG_PARTITION_TABLE_FILENAME="partitions_singleapp.csv"
+CONFIG_PARTITION_TABLE_FILENAME="partitions_two_ota.csv"
 CONFIG_PARTITION_TABLE_OFFSET=0x8000
 CONFIG_PARTITION_TABLE_MD5=y
 # end of Partition Table
@@ -396,6 +410,8 @@ CONFIG_COMPILER_STACK_CHECK_MODE_NONE=y
 # CONFIG_COMPILER_DUMP_RTL_FILES is not set
 CONFIG_COMPILER_RT_LIB_GCCLIB=y
 CONFIG_COMPILER_RT_LIB_NAME="gcc"
+# CONFIG_COMPILER_ORPHAN_SECTIONS_WARNING is not set
+CONFIG_COMPILER_ORPHAN_SECTIONS_PLACE=y
 # end of Compiler options
 
 #
@@ -421,35 +437,16 @@ CONFIG_APPTRACE_LOCK_ENABLE=y
 CONFIG_BT_ALARM_MAX_NUM=50
 # end of Bluetooth
 
+#
+# Console Library
+#
+# CONFIG_CONSOLE_SORTED_HELP is not set
+# end of Console Library
+
 #
 # Driver Configurations
 #
 
-#
-# Legacy ADC Configuration
-#
-CONFIG_ADC_DISABLE_DAC=y
-# CONFIG_ADC_SUPPRESS_DEPRECATE_WARN is not set
-
-#
-# Legacy ADC Calibration Configuration
-#
-CONFIG_ADC_CAL_EFUSE_TP_ENABLE=y
-CONFIG_ADC_CAL_EFUSE_VREF_ENABLE=y
-CONFIG_ADC_CAL_LUT_ENABLE=y
-# CONFIG_ADC_CALI_SUPPRESS_DEPRECATE_WARN is not set
-# end of Legacy ADC Calibration Configuration
-# end of Legacy ADC Configuration
-
-#
-# SPI Configuration
-#
-# CONFIG_SPI_MASTER_IN_IRAM is not set
-CONFIG_SPI_MASTER_ISR_IN_IRAM=y
-# CONFIG_SPI_SLAVE_IN_IRAM is not set
-CONFIG_SPI_SLAVE_ISR_IN_IRAM=y
-# end of SPI Configuration
-
 #
 # TWAI Configuration
 #
@@ -462,93 +459,62 @@ CONFIG_TWAI_ERRATA_FIX_LISTEN_ONLY_DOM=y
 # end of TWAI Configuration
 
 #
-# UART Configuration
+# Legacy ADC Driver Configuration
 #
-# CONFIG_UART_ISR_IN_IRAM is not set
-# end of UART Configuration
+CONFIG_ADC_DISABLE_DAC=y
+# CONFIG_ADC_SUPPRESS_DEPRECATE_WARN is not set
 
 #
-# GPIO Configuration
+# Legacy ADC Calibration Configuration
 #
-# CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL is not set
-# CONFIG_GPIO_CTRL_FUNC_IN_IRAM is not set
-# end of GPIO Configuration
+CONFIG_ADC_CAL_EFUSE_TP_ENABLE=y
+CONFIG_ADC_CAL_EFUSE_VREF_ENABLE=y
+CONFIG_ADC_CAL_LUT_ENABLE=y
+# CONFIG_ADC_CALI_SUPPRESS_DEPRECATE_WARN is not set
+# end of Legacy ADC Calibration Configuration
+# end of Legacy ADC Driver Configuration
 
 #
-# Sigma Delta Modulator Configuration
+# Legacy DAC Driver Configurations
 #
-# CONFIG_SDM_CTRL_FUNC_IN_IRAM is not set
-# CONFIG_SDM_SUPPRESS_DEPRECATE_WARN is not set
-# CONFIG_SDM_ENABLE_DEBUG_LOG is not set
-# end of Sigma Delta Modulator Configuration
-
-#
-# GPTimer Configuration
-#
-CONFIG_GPTIMER_ISR_HANDLER_IN_IRAM=y
-# CONFIG_GPTIMER_CTRL_FUNC_IN_IRAM is not set
-# CONFIG_GPTIMER_ISR_IRAM_SAFE is not set
-# CONFIG_GPTIMER_SUPPRESS_DEPRECATE_WARN is not set
-# CONFIG_GPTIMER_ENABLE_DEBUG_LOG is not set
-# end of GPTimer Configuration
-
-#
-# PCNT Configuration
-#
-# CONFIG_PCNT_CTRL_FUNC_IN_IRAM is not set
-# CONFIG_PCNT_ISR_IRAM_SAFE is not set
-# CONFIG_PCNT_SUPPRESS_DEPRECATE_WARN is not set
-# CONFIG_PCNT_ENABLE_DEBUG_LOG is not set
-# end of PCNT Configuration
-
-#
-# RMT Configuration
-#
-# CONFIG_RMT_ISR_IRAM_SAFE is not set
-# CONFIG_RMT_RECV_FUNC_IN_IRAM is not set
-# CONFIG_RMT_SUPPRESS_DEPRECATE_WARN is not set
-# CONFIG_RMT_ENABLE_DEBUG_LOG is not set
-# end of RMT Configuration
-
-#
-# MCPWM Configuration
-#
-# CONFIG_MCPWM_ISR_IRAM_SAFE is not set
-# CONFIG_MCPWM_CTRL_FUNC_IN_IRAM is not set
-# CONFIG_MCPWM_SUPPRESS_DEPRECATE_WARN is not set
-# CONFIG_MCPWM_ENABLE_DEBUG_LOG is not set
-# end of MCPWM Configuration
-
-#
-# I2S Configuration
-#
-# CONFIG_I2S_ISR_IRAM_SAFE is not set
-# CONFIG_I2S_SUPPRESS_DEPRECATE_WARN is not set
-# CONFIG_I2S_ENABLE_DEBUG_LOG is not set
-# end of I2S Configuration
-
-#
-# DAC Configuration
-#
-# CONFIG_DAC_CTRL_FUNC_IN_IRAM is not set
-# CONFIG_DAC_ISR_IRAM_SAFE is not set
 # CONFIG_DAC_SUPPRESS_DEPRECATE_WARN is not set
-# CONFIG_DAC_ENABLE_DEBUG_LOG is not set
-CONFIG_DAC_DMA_AUTO_16BIT_ALIGN=y
-# end of DAC Configuration
+# end of Legacy DAC Driver Configurations
 
 #
-# LEDC Configuration
+# Legacy MCPWM Driver Configurations
 #
-# CONFIG_LEDC_CTRL_FUNC_IN_IRAM is not set
-# end of LEDC Configuration
+# CONFIG_MCPWM_SUPPRESS_DEPRECATE_WARN is not set
+# end of Legacy MCPWM Driver Configurations
 
 #
-# I2C Configuration
+# Legacy Timer Group Driver Configurations
 #
-# CONFIG_I2C_ISR_IRAM_SAFE is not set
-# CONFIG_I2C_ENABLE_DEBUG_LOG is not set
-# end of I2C Configuration
+# CONFIG_GPTIMER_SUPPRESS_DEPRECATE_WARN is not set
+# end of Legacy Timer Group Driver Configurations
+
+#
+# Legacy RMT Driver Configurations
+#
+# CONFIG_RMT_SUPPRESS_DEPRECATE_WARN is not set
+# end of Legacy RMT Driver Configurations
+
+#
+# Legacy I2S Driver Configurations
+#
+# CONFIG_I2S_SUPPRESS_DEPRECATE_WARN is not set
+# end of Legacy I2S Driver Configurations
+
+#
+# Legacy PCNT Driver Configurations
+#
+# CONFIG_PCNT_SUPPRESS_DEPRECATE_WARN is not set
+# end of Legacy PCNT Driver Configurations
+
+#
+# Legacy SDM Driver Configurations
+#
+# CONFIG_SDM_SUPPRESS_DEPRECATE_WARN is not set
+# end of Legacy SDM Driver Configurations
 # end of Driver Configurations
 
 #
@@ -568,7 +534,9 @@ CONFIG_EFUSE_MAX_BLK_LEN=192
 CONFIG_ESP_TLS_USING_MBEDTLS=y
 # CONFIG_ESP_TLS_USE_SECURE_ELEMENT is not set
 # CONFIG_ESP_TLS_CLIENT_SESSION_TICKETS is not set
-# CONFIG_ESP_TLS_SERVER is not set
+# CONFIG_ESP_TLS_SERVER_SESSION_TICKETS is not set
+# CONFIG_ESP_TLS_SERVER_CERT_SELECT_HOOK is not set
+# CONFIG_ESP_TLS_SERVER_MIN_AUTH_MODE_OPTIONAL is not set
 # CONFIG_ESP_TLS_PSK_VERIFICATION is not set
 # CONFIG_ESP_TLS_INSECURE is not set
 # end of ESP-TLS
@@ -588,11 +556,13 @@ CONFIG_ADC_CALI_LUT_ENABLE=y
 # end of ADC Calibration Configurations
 
 CONFIG_ADC_DISABLE_DAC_OUTPUT=y
+# CONFIG_ADC_ENABLE_DEBUG_LOG is not set
 # end of ADC and ADC Calibration
 
 #
 # Wireless Coexistence
 #
+CONFIG_ESP_COEX_ENABLED=y
 # end of Wireless Coexistence
 
 #
@@ -601,6 +571,105 @@ CONFIG_ADC_DISABLE_DAC_OUTPUT=y
 CONFIG_ESP_ERR_TO_NAME_LOOKUP=y
 # end of Common ESP-related
 
+#
+# ESP-Driver:DAC Configurations
+#
+# CONFIG_DAC_CTRL_FUNC_IN_IRAM is not set
+# CONFIG_DAC_ISR_IRAM_SAFE is not set
+# CONFIG_DAC_ENABLE_DEBUG_LOG is not set
+CONFIG_DAC_DMA_AUTO_16BIT_ALIGN=y
+# end of ESP-Driver:DAC Configurations
+
+#
+# ESP-Driver:GPIO Configurations
+#
+# CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL is not set
+# CONFIG_GPIO_CTRL_FUNC_IN_IRAM is not set
+# end of ESP-Driver:GPIO Configurations
+
+#
+# ESP-Driver:GPTimer Configurations
+#
+CONFIG_GPTIMER_ISR_HANDLER_IN_IRAM=y
+# CONFIG_GPTIMER_CTRL_FUNC_IN_IRAM is not set
+# CONFIG_GPTIMER_ISR_IRAM_SAFE is not set
+# CONFIG_GPTIMER_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:GPTimer Configurations
+
+#
+# ESP-Driver:I2C Configurations
+#
+# CONFIG_I2C_ISR_IRAM_SAFE is not set
+# CONFIG_I2C_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:I2C Configurations
+
+#
+# ESP-Driver:I2S Configurations
+#
+# CONFIG_I2S_ISR_IRAM_SAFE is not set
+# CONFIG_I2S_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:I2S Configurations
+
+#
+# ESP-Driver:LEDC Configurations
+#
+# CONFIG_LEDC_CTRL_FUNC_IN_IRAM is not set
+# end of ESP-Driver:LEDC Configurations
+
+#
+# ESP-Driver:MCPWM Configurations
+#
+# CONFIG_MCPWM_ISR_IRAM_SAFE is not set
+# CONFIG_MCPWM_CTRL_FUNC_IN_IRAM is not set
+# CONFIG_MCPWM_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:MCPWM Configurations
+
+#
+# ESP-Driver:PCNT Configurations
+#
+# CONFIG_PCNT_CTRL_FUNC_IN_IRAM is not set
+# CONFIG_PCNT_ISR_IRAM_SAFE is not set
+# CONFIG_PCNT_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:PCNT Configurations
+
+#
+# ESP-Driver:RMT Configurations
+#
+# CONFIG_RMT_ISR_IRAM_SAFE is not set
+# CONFIG_RMT_RECV_FUNC_IN_IRAM is not set
+# CONFIG_RMT_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:RMT Configurations
+
+#
+# ESP-Driver:Sigma Delta Modulator Configurations
+#
+# CONFIG_SDM_CTRL_FUNC_IN_IRAM is not set
+# CONFIG_SDM_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:Sigma Delta Modulator Configurations
+
+#
+# ESP-Driver:SPI Configurations
+#
+# CONFIG_SPI_MASTER_IN_IRAM is not set
+CONFIG_SPI_MASTER_ISR_IN_IRAM=y
+# CONFIG_SPI_SLAVE_IN_IRAM is not set
+CONFIG_SPI_SLAVE_ISR_IN_IRAM=y
+# end of ESP-Driver:SPI Configurations
+
+#
+# ESP-Driver:Touch Sensor Configurations
+#
+# CONFIG_TOUCH_CTRL_FUNC_IN_IRAM is not set
+# CONFIG_TOUCH_ISR_IRAM_SAFE is not set
+# CONFIG_TOUCH_ENABLE_DEBUG_LOG is not set
+# end of ESP-Driver:Touch Sensor Configurations
+
+#
+# ESP-Driver:UART Configurations
+#
+# CONFIG_UART_ISR_IN_IRAM is not set
+# end of ESP-Driver:UART Configurations
+
 #
 # Ethernet
 #
@@ -645,6 +714,7 @@ CONFIG_ESP_GDBSTUB_MAX_TASKS=32
 CONFIG_ESP_HTTP_CLIENT_ENABLE_HTTPS=y
 # CONFIG_ESP_HTTP_CLIENT_ENABLE_BASIC_AUTH is not set
 # CONFIG_ESP_HTTP_CLIENT_ENABLE_DIGEST_AUTH is not set
+# CONFIG_ESP_HTTP_CLIENT_ENABLE_CUSTOM_TRANSPORT is not set
 # end of ESP HTTP client
 
 #
@@ -704,6 +774,7 @@ CONFIG_ESP_MAC_ADDR_UNIVERSE_WIFI_AP=y
 CONFIG_ESP_MAC_ADDR_UNIVERSE_BT=y
 CONFIG_ESP_MAC_ADDR_UNIVERSE_ETH=y
 CONFIG_ESP_MAC_UNIVERSAL_MAC_ADDRESSES_FOUR=y
+CONFIG_ESP_MAC_UNIVERSAL_MAC_ADDRESSES=4
 # CONFIG_ESP32_UNIVERSAL_MAC_ADDRESSES_TWO is not set
 CONFIG_ESP32_UNIVERSAL_MAC_ADDRESSES_FOUR=y
 CONFIG_ESP32_UNIVERSAL_MAC_ADDRESSES=4
@@ -749,6 +820,8 @@ CONFIG_XTAL_FREQ_40=y
 # CONFIG_XTAL_FREQ_AUTO is not set
 CONFIG_XTAL_FREQ=40
 # end of Main XTAL Config
+
+CONFIG_ESP_SPI_BUS_LOCK_ISR_FUNCS_IN_IRAM=y
 # end of Hardware Settings
 
 #
@@ -787,6 +860,7 @@ CONFIG_ESP_NETIF_USES_TCPIP_WITH_BSD_API=y
 #
 # PHY
 #
+CONFIG_ESP_PHY_ENABLED=y
 CONFIG_ESP_PHY_CALIBRATION_AND_DATA_STORAGE=y
 # CONFIG_ESP_PHY_INIT_DATA_IN_PARTITION is not set
 CONFIG_ESP_PHY_MAX_WIFI_TX_POWER=20
@@ -868,6 +942,7 @@ CONFIG_ESP_CONSOLE_UART_DEFAULT=y
 # CONFIG_ESP_CONSOLE_NONE is not set
 CONFIG_ESP_CONSOLE_UART=y
 CONFIG_ESP_CONSOLE_UART_NUM=0
+CONFIG_ESP_CONSOLE_ROM_SERIAL_PORT_NUM=0
 CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
 CONFIG_ESP_INT_WDT=y
 CONFIG_ESP_INT_WDT_TIMEOUT_MS=300
@@ -912,7 +987,7 @@ CONFIG_ESP_IPC_ISR_ENABLE=y
 # end of IPC (Inter-Processor Call)
 
 #
-# High resolution timer (esp_timer)
+# ESP Timer (High Resolution Timer)
 #
 # CONFIG_ESP_TIMER_PROFILING is not set
 CONFIG_ESP_TIME_FUNCS_USE_RTC_TIMER=y
@@ -922,11 +997,10 @@ CONFIG_ESP_TIMER_INTERRUPT_LEVEL=1
 # CONFIG_ESP_TIMER_SHOW_EXPERIMENTAL is not set
 CONFIG_ESP_TIMER_TASK_AFFINITY=0x0
 CONFIG_ESP_TIMER_TASK_AFFINITY_CPU0=y
-CONFIG_ESP_TIMER_ISR_AFFINITY=0x1
 CONFIG_ESP_TIMER_ISR_AFFINITY_CPU0=y
 # CONFIG_ESP_TIMER_SUPPORTS_ISR_DISPATCH_METHOD is not set
 CONFIG_ESP_TIMER_IMPL_TG0_LAC=y
-# end of High resolution timer (esp_timer)
+# end of ESP Timer (High Resolution Timer)
 
 #
 # Wi-Fi
@@ -960,6 +1034,9 @@ CONFIG_ESP_WIFI_ENABLE_SAE_PK=y
 CONFIG_ESP_WIFI_SOFTAP_SAE_SUPPORT=y
 CONFIG_ESP_WIFI_ENABLE_WPA3_OWE_STA=y
 # CONFIG_ESP_WIFI_SLP_IRAM_OPT is not set
+CONFIG_ESP_WIFI_SLP_DEFAULT_MIN_ACTIVE_TIME=50
+CONFIG_ESP_WIFI_SLP_DEFAULT_MAX_ACTIVE_TIME=10
+CONFIG_ESP_WIFI_SLP_DEFAULT_WAIT_BROADCAST_DATA_TIME=15
 CONFIG_ESP_WIFI_STA_DISCONNECTED_PM_ENABLE=y
 # CONFIG_ESP_WIFI_GMAC_SUPPORT is not set
 CONFIG_ESP_WIFI_SOFTAP_SUPPORT=y
@@ -1034,6 +1111,8 @@ CONFIG_FATFS_PER_FILE_CACHE=y
 # CONFIG_FATFS_USE_FASTSEEK is not set
 CONFIG_FATFS_VFS_FSTAT_BLKSIZE=0
 # CONFIG_FATFS_IMMEDIATE_FSYNC is not set
+# CONFIG_FATFS_USE_LABEL is not set
+CONFIG_FATFS_LINK_LOCK=y
 # end of FAT Filesystem support
 
 #
@@ -1056,12 +1135,17 @@ CONFIG_FREERTOS_IDLE_TASK_STACKSIZE=1536
 CONFIG_FREERTOS_MAX_TASK_NAME_LEN=16
 # CONFIG_FREERTOS_ENABLE_BACKWARD_COMPATIBILITY is not set
 CONFIG_FREERTOS_TIMER_SERVICE_TASK_NAME="Tmr Svc"
+# CONFIG_FREERTOS_TIMER_TASK_AFFINITY_CPU0 is not set
+# CONFIG_FREERTOS_TIMER_TASK_AFFINITY_CPU1 is not set
+CONFIG_FREERTOS_TIMER_TASK_NO_AFFINITY=y
+CONFIG_FREERTOS_TIMER_SERVICE_TASK_CORE_AFFINITY=0x7FFFFFFF
 CONFIG_FREERTOS_TIMER_TASK_PRIORITY=1
 CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=2048
 CONFIG_FREERTOS_TIMER_QUEUE_LENGTH=10
 CONFIG_FREERTOS_QUEUE_REGISTRY_SIZE=0
 CONFIG_FREERTOS_TASK_NOTIFICATION_ARRAY_ENTRIES=1
 # CONFIG_FREERTOS_USE_TRACE_FACILITY is not set
+# CONFIG_FREERTOS_USE_LIST_DATA_INTEGRITY_CHECK_BYTES is not set
 # CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS is not set
 # CONFIG_FREERTOS_USE_APPLICATION_TASK_TAG is not set
 # end of Kernel
@@ -1092,6 +1176,7 @@ CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION=y
 CONFIG_FREERTOS_DEBUG_OCDAWARE=y
 CONFIG_FREERTOS_ENABLE_TASK_SNAPSHOT=y
 CONFIG_FREERTOS_PLACE_SNAPSHOT_FUNS_INTO_FLASH=y
+CONFIG_FREERTOS_NUMBER_OF_CORES=2
 # end of FreeRTOS
 
 #
@@ -1218,6 +1303,7 @@ CONFIG_LWIP_TCP_FIN_WAIT_TIMEOUT=20000
 CONFIG_LWIP_TCP_SND_BUF_DEFAULT=5760
 CONFIG_LWIP_TCP_WND_DEFAULT=5760
 CONFIG_LWIP_TCP_RECVMBOX_SIZE=6
+CONFIG_LWIP_TCP_ACCEPTMBOX_SIZE=6
 CONFIG_LWIP_TCP_QUEUE_OOSEQ=y
 CONFIG_LWIP_TCP_OOSEQ_TIMEOUT=6
 CONFIG_LWIP_TCP_OOSEQ_MAX_PBUFS=4
@@ -1273,6 +1359,8 @@ CONFIG_LWIP_MAX_RAW_PCBS=16
 CONFIG_LWIP_SNTP_MAX_SERVERS=1
 # CONFIG_LWIP_DHCP_GET_NTP_SRV is not set
 CONFIG_LWIP_SNTP_UPDATE_DELAY=3600000
+CONFIG_LWIP_SNTP_STARTUP_DELAY=y
+CONFIG_LWIP_SNTP_MAXIMUM_STARTUP_DELAY=5000
 # end of SNTP
 
 #
@@ -1342,6 +1430,7 @@ CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL=y
 # CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_CMN is not set
 # CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_NONE is not set
 # CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE is not set
+# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEPRECATED_LIST is not set
 CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_MAX_CERTS=200
 # end of Certificate Bundle
 
@@ -1551,6 +1640,7 @@ CONFIG_SPI_FLASH_BROWNOUT_RESET=y
 #
 # Features here require specific hardware (READ DOCS FIRST!)
 #
+CONFIG_SPI_FLASH_SUSPEND_TSUS_VAL_US=50
 # end of Optional and Experimental Features (READ DOCS FIRST)
 # end of Main Flash configuration
 
@@ -1645,6 +1735,11 @@ CONFIG_WS_BUFFER_SIZE=1024
 # Ultra Low Power (ULP) Co-processor
 #
 # CONFIG_ULP_COPROC_ENABLED is not set
+
+#
+# ULP Debugging Options
+#
+# end of ULP Debugging Options
 # end of Ultra Low Power (ULP) Co-processor
 
 #

esp32_device/sdkconfig.old

@@ -229,7 +229,7 @@ CONFIG_IDF_TOOLCHAIN="gcc"
 CONFIG_IDF_TARGET_ARCH_XTENSA=y
 CONFIG_IDF_TARGET_ARCH="xtensa"
 CONFIG_IDF_TARGET="esp32"
-CONFIG_IDF_INIT_VERSION="5.2.2"
+CONFIG_IDF_INIT_VERSION="$IDF_INIT_VERSION"
 CONFIG_IDF_TARGET_ESP32=y
 CONFIG_IDF_FIRMWARE_CHIP_ID=0x0000
 
@@ -339,14 +339,14 @@ CONFIG_ESPTOOLPY_FLASHFREQ_40M=y
 # CONFIG_ESPTOOLPY_FLASHFREQ_20M is not set
 CONFIG_ESPTOOLPY_FLASHFREQ="40m"
 # CONFIG_ESPTOOLPY_FLASHSIZE_1MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE_2MB=y
-# CONFIG_ESPTOOLPY_FLASHSIZE_4MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_2MB is not set
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 # CONFIG_ESPTOOLPY_FLASHSIZE_8MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_16MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_32MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_64MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_128MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE="2MB"
+CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
 # CONFIG_ESPTOOLPY_HEADER_FLASHSIZE_UPDATE is not set
 CONFIG_ESPTOOLPY_BEFORE_RESET=y
 # CONFIG_ESPTOOLPY_BEFORE_NORESET is not set
@@ -360,12 +360,12 @@ CONFIG_ESPTOOLPY_MONITOR_BAUD=115200
 #
 # Partition Table
 #
-CONFIG_PARTITION_TABLE_SINGLE_APP=y
+# CONFIG_PARTITION_TABLE_SINGLE_APP is not set
 # CONFIG_PARTITION_TABLE_SINGLE_APP_LARGE is not set
-# CONFIG_PARTITION_TABLE_TWO_OTA is not set
+CONFIG_PARTITION_TABLE_TWO_OTA=y
 # CONFIG_PARTITION_TABLE_CUSTOM is not set
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
-CONFIG_PARTITION_TABLE_FILENAME="partitions_singleapp.csv"
+CONFIG_PARTITION_TABLE_FILENAME="partitions_two_ota.csv"
 CONFIG_PARTITION_TABLE_OFFSET=0x8000
 CONFIG_PARTITION_TABLE_MD5=y
 # end of Partition Table
@@ -1127,14 +1127,13 @@ CONFIG_HEAP_TRACING_OFF=y
 # CONFIG_LOG_DEFAULT_LEVEL_NONE is not set
 # CONFIG_LOG_DEFAULT_LEVEL_ERROR is not set
 # CONFIG_LOG_DEFAULT_LEVEL_WARN is not set
-CONFIG_LOG_DEFAULT_LEVEL_INFO=y
-# CONFIG_LOG_DEFAULT_LEVEL_DEBUG is not set
+# CONFIG_LOG_DEFAULT_LEVEL_INFO is not set
+CONFIG_LOG_DEFAULT_LEVEL_DEBUG=y
 # CONFIG_LOG_DEFAULT_LEVEL_VERBOSE is not set
-CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_LOG_DEFAULT_LEVEL=4
 CONFIG_LOG_MAXIMUM_EQUALS_DEFAULT=y
-# CONFIG_LOG_MAXIMUM_LEVEL_DEBUG is not set
 # CONFIG_LOG_MAXIMUM_LEVEL_VERBOSE is not set
-CONFIG_LOG_MAXIMUM_LEVEL=3
+CONFIG_LOG_MAXIMUM_LEVEL=4
 # CONFIG_LOG_MASTER_LEVEL is not set
 CONFIG_LOG_COLORS=y
 CONFIG_LOG_TIMESTAMP_SOURCE_RTOS=y

esp32_device/version.txt

@@ -0,0 +1 @@
+1.0.0

python_device/src/api.py

@@ -4,6 +4,7 @@ import src.constants as constants
 from cryptography.x509 import load_pem_x509_certificate
 from cryptography import utils
 import jwt
+import json
 
 
 def get_secure_origin() -> str:
@@ -75,13 +76,18 @@ def device_certificate() -> str:
     return res.text
 
 
+def jwt_sign(data: any, dev_id: str, privkey) -> str:
+    """
+    Generate a JWT for client request
+    """
+    return jwt.encode(data, privkey, algorithm="RS256", headers={"kid": dev_id})
+
+
 def sync_device(dev_id: str, privkey):
     """
     Synchronize device with backend
     """
-    encoded = jwt.encode(
-        {"info": device_info()}, privkey, algorithm="RS256", headers={"kid": dev_id}
-    )
+    encoded = jwt_sign({"info": device_info()}, dev_id=dev_id, privkey=privkey)
 
     res = requests.post(
         f"{args.secure_origin}/devices_api/mgmt/sync",
@@ -89,6 +95,19 @@ def sync_device(dev_id: str, privkey):
         verify=args.root_ca_path,
     )
 
-    print(encoded)
-    print(res)
-    print(res.text)
+    return json.loads(res.text)
+
+
+def report_log(severity: str, message: str, dev_id: str, privkey):
+    """
+    Report log message to server
+    """
+    encoded = jwt_sign(
+        {"severity": severity, "message": message}, dev_id=dev_id, privkey=privkey
+    )
+
+    requests.post(
+        f"{args.secure_origin}/devices_api/logging/record",
+        json={"payload": encoded},
+        verify=args.root_ca_path,
+    )

python_device/src/main.py

@@ -3,6 +3,10 @@ import src.api as api
 import src.pki as pki
 import src.utils as utils
 import os
+import time
+
+# TODO : turn off all relays
+# TODO : intialize GPIO
 
 print("Check storage")
 if not os.path.isdir(args.storage):
@@ -88,6 +92,13 @@ if not os.path.isfile(args.dev_crt_path):
     with open(args.dev_crt_path, "w") as f:
         f.write(cert)
 
+api.report_log("Info", "Starting program main loop...", args.dev_id, args.priv_key)
 
-print("Done. ready to operate.")
-api.sync_device(args.dev_id, args.priv_key)
+print("Ready to operate!.")
+while True:
+
+    # TODO : implement this loop more properly
+    res = api.sync_device(args.dev_id, args.priv_key)
+    print(res)
+
+    time.sleep(5)

renovate.json

@@ -0,0 +1,9 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "packageRules": [
+    {
+      "matchUpdateTypes": ["major", "minor", "patch"],
+      "automerge": true
+    }
+  ]
+}