doc: add new schema

Reviewed-on: #1

.gitignore

@@ -24,3 +24,5 @@ target/
 
 # Ignore .DS_Store file in mac
 **/.DS_Store
+
+*.bkp

Cargo.lock

@@ -96,6 +96,12 @@ version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
+[[package]]
+name = "base64ct"
+version = "1.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2af50177e190e07a26ab74f8b1efbfe2ef87da2116221318cb1c2e82baf7de06"
+
 [[package]]
 name = "bitfield"
 version = "0.19.4"
@@ -229,6 +235,32 @@ dependencies = [
  "cipher",
 ]
 
+[[package]]
+name = "curve25519-dalek"
+version = "4.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97fb8b7c4503de7d6ae7b42ab72a5a59857b4c937ec27a3d4539dba95b5ab2be"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "curve25519-dalek-derive",
+ "digest",
+ "fiat-crypto",
+ "rustc_version",
+ "subtle",
+]
+
+[[package]]
+name = "curve25519-dalek-derive"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.114",
+]
+
 [[package]]
 name = "darling"
 version = "0.20.11"
@@ -436,6 +468,27 @@ dependencies = [
  "signature",
 ]
 
+[[package]]
+name = "ed25519"
+version = "2.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
+dependencies = [
+ "signature",
+]
+
+[[package]]
+name = "ed25519-dalek"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70e796c081cee67dc755e1a36a0a172b897fab85fc3f6bc48307991f64e4eca9"
+dependencies = [
+ "curve25519-dalek",
+ "ed25519",
+ "sha2",
+ "subtle",
+]
+
 [[package]]
 name = "edge-http"
 version = "0.7.0"
@@ -808,13 +861,14 @@ dependencies = [
 [[package]]
 name = "embedded-tls"
 version = "0.19.0"
-source = "git+https://github.com/drogue-iot/embedded-tls?rev=3b9a0951a256ce84c5dc6f4827a0d05466ab5e63#3b9a0951a256ce84c5dc6f4827a0d05466ab5e63"
+source = "git+https://github.com/drogue-iot/embedded-tls?rev=bd13e11ce9c7605baf7018ef2b0f353ae6693016#bd13e11ce9c7605baf7018ef2b0f353ae6693016"
 dependencies = [
  "aes-gcm",
  "const-oid 0.10.2",
  "der 0.8.0",
  "digest",
  "ecdsa",
+ "ed25519-dalek",
  "embedded-io 0.7.1",
  "embedded-io-async 0.7.0",
  "generic-array 0.14.7",
@@ -822,9 +876,11 @@ dependencies = [
  "heapless 0.9.2",
  "hkdf",
  "hmac",
+ "log",
  "p256",
  "portable-atomic",
  "rand_core 0.6.4",
+ "rsa",
  "sha2",
  "signature",
  "typenum",
@@ -874,7 +930,7 @@ dependencies = [
  "encoding_rs",
  "hashbrown",
  "log",
- "spin",
+ "spin 0.10.0",
 ]
 
 [[package]]
@@ -1197,6 +1253,12 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "fiat-crypto"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28dea519a9695b9977216879a3ebfddf92f1c08c05d984f8996aecd6ecdc811d"
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -1596,12 +1658,27 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68971ebff725b9e2ca27a601c5eb38a4c5d64422c4cbab0c535f248087eda5c2"
 
+[[package]]
+name = "lazy_static"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+dependencies = [
+ "spin 0.9.8",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"
 
+[[package]]
+name = "libm"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6d2cec3eae94f9f509c767b45932f1ada8350c4bdb85af2fcab4a3c14807981"
+
 [[package]]
 name = "linked_list_allocator"
 version = "0.10.5"
@@ -1678,8 +1755,10 @@ dependencies = [
  "jiff",
  "log",
  "num-traits",
+ "pem",
  "percent-encoding",
- "rand",
+ "rand 0.9.2",
+ "rand_core 0.6.4",
  "serde",
  "serde_json",
  "sntpc",
@@ -1711,12 +1790,48 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
 
+[[package]]
+name = "num-bigint-dig"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e661dda6640fad38e827a6d4a310ff4763082116fe217f279885c97f511bb0b7"
+dependencies = [
+ "lazy_static",
+ "libm",
+ "num-integer",
+ "num-iter",
+ "num-traits",
+ "rand 0.8.5",
+ "smallvec",
+ "zeroize",
+]
+
 [[package]]
 name = "num-conv"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf97ec579c3c42f953ef76dbf8d55ac91fb219dde70e49aa4a6b7d74e9919050"
 
+[[package]]
+name = "num-integer"
+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.19"
@@ -1724,6 +1839,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
 dependencies = [
  "autocfg",
+ "libm",
 ]
 
 [[package]]
@@ -1759,6 +1875,15 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
 
+[[package]]
+name = "pem"
+version = "3.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d30c53c26bc5b31a98cd02d20f25a7c8567146caf63ed593a9d87b2775291be"
+dependencies = [
+ "base64 0.22.1",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.2"
@@ -1777,6 +1902,27 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pkcs1"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8ffb9f10fa047879315e6625af03c164b16962a5368d724ed16323b68ace47f"
+dependencies = [
+ "der 0.7.10",
+ "pkcs8",
+ "spki",
+]
+
+[[package]]
+name = "pkcs8"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
+dependencies = [
+ "der 0.7.10",
+ "spki",
+]
+
 [[package]]
 name = "polyval"
 version = "0.6.2"
@@ -1819,6 +1965,15 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85eae3c4ed2f50dcfe72643da4befc30deadb458a9b590d720cde2f2b1e97da9"
+dependencies = [
+ "zerocopy",
+]
+
 [[package]]
 name = "primeorder"
 version = "0.13.6"
@@ -1861,6 +2016,16 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "46b71a9d9206e8b46714c74255adcaea8b11e0350c1d8456165073c3f75fc81a"
 
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "rand_chacha",
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "rand"
 version = "0.9.2"
@@ -1870,6 +2035,16 @@ dependencies = [
  "rand_core 0.9.5",
 ]
 
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.6.4"
@@ -1963,6 +2138,36 @@ dependencies = [
  "svgbobdoc",
 ]
 
+[[package]]
+name = "rsa"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8573f03f5883dcaebdfcf4725caa1ecb9c15b2ef50c43a07b816e06799bb12d"
+dependencies = [
+ "const-oid 0.9.6",
+ "digest",
+ "num-bigint-dig",
+ "num-integer",
+ "num-traits",
+ "pkcs1",
+ "pkcs8",
+ "rand_core 0.6.4",
+ "sha2",
+ "signature",
+ "spki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustc_version"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.22"
@@ -2000,6 +2205,12 @@ version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e896488941756e5de3ee8449495464dbbf2201c85d2d1ace47d4fb81c74b99ec"
 
+[[package]]
+name = "semver"
+version = "1.0.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d767eb0aabc880b29956c35734170f26ed551a859dbd361d140cdbeca61ab1e2"
+
 [[package]]
 name = "serde"
 version = "1.0.228"
@@ -2136,6 +2347,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0f368519fc6c85fc1afdb769fb5a51123f6158013e143656e25a3485a0d401c"
 
+[[package]]
+name = "spin"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+
 [[package]]
 name = "spin"
 version = "0.10.0"
@@ -2145,6 +2362,16 @@ dependencies = [
  "lock_api",
 ]
 
+[[package]]
+name = "spki"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
+dependencies = [
+ "base64ct",
+ "der 0.7.10",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.1"
@@ -2504,6 +2731,26 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zerocopy"
+version = "0.8.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2578b716f8a7a858b7f02d5bd870c14bf4ddbbcf3a4c05414ba6503640505e3"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e6cc098ea4d3bd6246687de65af3f920c430e236bee1e3bf2e441463f08a02f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.114",
+]
+
 [[package]]
 name = "zerofrom"
 version = "0.1.6"

Cargo.toml

@@ -43,7 +43,8 @@ sntpc-net-embassy = { version = "0.8.0", features = ["ipv6"] }
 jiff = { version = "0.2.20", default-features = false, features = ["static"] }
 
 # HTTP client handling dependencies
-embedded-tls = { git = "https://github.com/drogue-iot/embedded-tls", rev = "3b9a0951a256ce84c5dc6f4827a0d05466ab5e63", default-features = false, features = ["rustpki", "alloc"] }
+embedded-tls = { git = "https://github.com/drogue-iot/embedded-tls", rev = "bd13e11ce9c7605baf7018ef2b0f353ae6693016", default-features = false, features = ["rustpki", "alloc", "log", "rsa", "ed25519"] }
+pem = {version = "3.0.6", default-features = false}
 edge-nal-embassy = "0.8.1"
 edge-nal = { version = "0.6.0", default-features = false }
 edge-http = { version = "0.7.0", features = ["io"], default-features = false }
@@ -55,6 +56,7 @@ escpos = { git = "https://github.com/pierre42100/escpos-rs", rev = "7499c2653a10
 
 critical-section = "1.2.0"
 rand = { version = "0.9.2", default-features = false }
+rand_core = "0.6.4"
 static_cell = "2.1.1"
 embedded-hal-bus = { version = "0.3.0", features = ["async"] }
 embedded-io-async = "0.7.0"

README.md

@@ -6,7 +6,13 @@ Print your incoming Matrix messages using a thermal printer
 ### Hardware requirement
 
 #### ESP32
-TODO
+This project rely on a ESP32-s3. For the sake of simplicity I used the most powerful one available: [ESP32 N16R8](https://fr.aliexpress.com/item/1005007319706057.html)
+
+The network is assured by a [W5500 chip](https://www.lextronic.fr/module-ethernet-w5500-sbcusres1-78053.html)
+
+Schematics:
+
+![](./docs/schematics_bb.png)
 
 #### Thermal printer
 You will need a Thermal printer that support the `Epson's ESC/POS` protocol.
@@ -42,4 +48,11 @@ cargo build --release
 * Deploy this project to an ESP32:
 ```bash
 cargo run --release
-```
+```
+
+### Project configuration roadmap
+* Setup Matrix and wanted bridgets
+* Setup MatrixGW and connect it to matrix
+* Connect and configure your thermal printer
+* Create an API token on MatrixGW for the printer
+* Access http://ESP_IP/ (username: `admin` / password: `admin`) to configure the ESP

renovate.json

@@ -0,0 +1,3 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+}

src/edge_nal_tls.rs

@@ -1,9 +1,12 @@
+use crate::config::AppConfig;
+use crate::time_client::TimeClient;
 use alloc::vec;
 use alloc::vec::Vec;
 use core::cell::UnsafeCell;
 use core::net::SocketAddr;
 use edge_nal::io::{ErrorKind, ErrorType};
-use embedded_tls::{Aes128GcmSha256, TlsConfig, TlsConnection};
+use embedded_tls::{Aes128GcmSha256, CryptoRng, TlsClock, TlsConfig, TlsConnection};
+use rand_core::{Error, RngCore};
 
 struct MyMut(UnsafeCell<bool>, UnsafeCell<Vec<u8>>);
 
@@ -70,6 +73,56 @@ impl<'c> AutoTlsConnector<'c> {
     }
 }
 
+struct Provider<'a> {
+    rng: PseudoRng,
+    verifier: embedded_tls::pki::CertVerifier<'a, Aes128GcmSha256, TimeClient, 4096>,
+}
+
+impl TlsClock for TimeClient {
+    fn now() -> Option<u64> {
+        Some(TimeClient::get().current_time_sec())
+    }
+}
+
+struct PseudoRng;
+
+impl CryptoRng for PseudoRng {}
+
+impl RngCore for PseudoRng {
+    fn next_u32(&mut self) -> u32 {
+        esp_hal::rng::Rng::new().next_u32()
+    }
+
+    fn next_u64(&mut self) -> u64 {
+        esp_hal::rng::Rng::new().next_u64()
+    }
+
+    fn fill_bytes(&mut self, dest: &mut [u8]) {
+        esp_hal::rng::Rng::new().fill_bytes(dest)
+    }
+
+    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
+        esp_hal::rng::Rng::new().try_fill_bytes(dest)
+    }
+}
+
+impl embedded_tls::CryptoProvider for Provider<'_> {
+    type CipherSuite = Aes128GcmSha256;
+
+    type Signature = &'static [u8];
+
+    fn rng(&mut self) -> impl embedded_tls::CryptoRngCore {
+        &mut self.rng
+    }
+
+    fn verifier(
+        &mut self,
+    ) -> Result<&mut impl embedded_tls::TlsVerifier<Self::CipherSuite>, embedded_tls::TlsError>
+    {
+        Ok(&mut self.verifier)
+    }
+}
+
 impl<'c> edge_nal::TcpConnect for AutoTlsConnector<'c> {
     type Error = EdgeNalTlsError;
     type Socket<'a>
@@ -89,15 +142,37 @@ impl<'c> edge_nal::TcpConnect for AutoTlsConnector<'c> {
         let (rbuf, wbuf) = tls_buf.split_at_mut(tls_buf.len() / 2);
         let mut tls = TlsConnection::new(socket, rbuf, wbuf);
 
-        // TODO : verify peer certificate
+        let root_ca = AppConfig::use_conf(|c| pem::parse(&c.safe.root_ca));
 
-        tls.open(embedded_tls::TlsContext::new(
+        match root_ca {
-            &config,
+            Ok(pem) => {
-            embedded_tls::UnsecureProvider::new::<embedded_tls::Aes128GcmSha256>(
+                log::info!("Checking certificate using root CA provided in config...");
-                esp_hal::rng::Trng::default(),
+
-            ),
+                tls.open(embedded_tls::TlsContext::new(
-        ))
+                    &config,
-        .await?;
+                    Provider {
+                        rng: PseudoRng,
+                        verifier: embedded_tls::pki::CertVerifier::new(
+                            embedded_tls::Certificate::X509(pem.contents()),
+                        ),
+                    },
+                ))
+                .await?;
+            }
+            Err(e) => {
+                log::error!(
+                    "Failed to parse TLS certificate: {e} will not check certificate, this is unsecure!!!"
+                );
+
+                tls.open(embedded_tls::TlsContext::new(
+                    &config,
+                    embedded_tls::UnsecureProvider::new::<embedded_tls::Aes128GcmSha256>(
+                        esp_hal::rng::Trng::default(),
+                    ),
+                ))
+                .await?;
+            }
+        }
 
         Ok(AutoTlsSocket::Tls(tls))
     }

src/thermal_printer/mod.rs

@@ -108,7 +108,7 @@ impl CompleteMessage<'_> {
         // Message date
         printer
             .justify(JustifyMode::CENTER)?
-            .bold(true)?
+            .bold(false)?
             .size(1, 1)?
             .writeln(
                 &self
@@ -144,8 +144,9 @@ impl CompleteMessage<'_> {
         }) = &self.room_info
         {
             printer
+                .bold(false)?
                 .justify(JustifyMode::CENTER)?
-                .size(2, 2)?
+                .size(1, 1)?
                 .writeln(&deunicode::deunicode(room_name))?
                 .reset_size()?;
         }