Replace ldk-server with direct ldk-node dependency

Our ldk-server fork re-exported ldk-node and bundled config loading, a
logger, and an HTTP/protobuf API layer we never used. We only need
ldk-node itself.

Drop ldk-server. Depend on ldk-node directly. Rewrite all imports from
ldk_server::ldk_node::* to ldk_node::*.

Inline our own config loader in src/config.rs to replace ldk-server's
ArgsConfig/load_config/get_default_data_dir. Same config schema,
no new crate dependencies beyond toml.

Swap ldk-server's ServerLogger for a 60-line console-only logger. File
logging and SIGHUP reopen are gone.

Switch the single RFC 3339 formatting call (invoice checkout) from the
`time` crate to `chrono`, which ldk-node already pulls in transitively.

Author: amackillop

Cargo.lock

@@ -7,7 +7,8 @@ edition = "2021"
 demo = []
 
 [dependencies]
-ldk-server = { git = "https://github.com/moneydevkit/ldk-server", rev = "a17acc8f0b0c7803562ffdfa2e7cc87f85b12c31" }
+# Branch: https://github.com/moneydevkit/ldk-node/tree/lsp-0.7.0_socks-support
+ldk-node = { git = "https://github.com/moneydevkit/ldk-node", rev = "c3aba2a47a6314968979de8fe772d9d1bcb3ee6e" }
 
 axum = { version = "0.8", features = ["json", "ws"] }
 utoipa = { version = "5.4", features = ["axum_extras"] }
@@ -21,10 +22,11 @@ rusqlite = { version = "0.31.0", features = ["bundled"] }
 hex = { package = "hex-conservative", version = "0.2.1" }
 clap = { version = "4", features = ["derive"] }
 log = "0.4"
+toml = "0.8"
+chrono = "0.4"
 hmac = "0.12"
 sha2 = "0.10"
 base64 = "0.22"
-time = { version = "0.3", features = ["formatting"] }
 
 [dev-dependencies]
 corepc-node = { version = "0.10", features = ["29_0"] }

Cargo.toml

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use axum::Json;
-use ldk_server::ldk_node::Node;
+use ldk_node::Node;
 
 use crate::api::error::AppError;
 use crate::types::GetBalanceResponse;

src/api/balance.rs

@@ -3,8 +3,8 @@ use std::sync::Arc;
 use axum::http::StatusCode;
 use axum::Json;
 use hex::FromHex;
-use ldk_server::ldk_node::lightning::ln::types::ChannelId;
-use ldk_server::ldk_node::Node;
+use ldk_node::lightning::ln::types::ChannelId;
+use ldk_node::Node;
 
 use crate::api::error::AppError;
 use crate::types::{ChannelInfo, CloseChannelRequest};

src/api/channels.rs

@@ -1,8 +1,8 @@
 use std::str::FromStr;
 
 use axum::Json;
-use ldk_server::ldk_node::lightning::offers::offer::Offer;
-use ldk_server::ldk_node::lightning_invoice::Bolt11Invoice;
+use ldk_node::lightning::offers::offer::{Amount, Offer};
+use ldk_node::lightning_invoice::Bolt11Invoice;
 
 use crate::api::error::AppError;
 use crate::types::{
@@ -74,9 +74,7 @@ pub fn handle_decode_offer(
     let offer_id = hex::DisplayHex::to_lower_hex_string(&offer.id().0[..]);
 
     let (amount_msat, amount_sat) = match offer.amount() {
-        Some(ldk_server::ldk_node::lightning::offers::offer::Amount::Bitcoin { amount_msats }) => {
-            (Some(amount_msats), Some(amount_msats / 1000))
-        }
+        Some(Amount::Bitcoin { amount_msats }) => (Some(amount_msats), Some(amount_msats / 1000)),
         _ => (None, None),
     };
 
@@ -99,8 +97,8 @@ pub fn handle_decode_offer(
 mod tests {
     use super::*;
 
-    use ldk_server::ldk_node::bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
-    use ldk_server::ldk_node::lightning::offers::offer::OfferBuilder;
+    use ldk_node::bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
+    use ldk_node::lightning::offers::offer::OfferBuilder;
 
     use crate::types::{DecodeInvoiceRequest, DecodeOfferRequest};
 

src/api/decode.rs

@@ -1,8 +1,8 @@
 use std::sync::Arc;
 
 use axum::Json;
-use ldk_server::ldk_node::bitcoin::Network;
-use ldk_server::ldk_node::Node;
+use ldk_node::bitcoin::Network;
+use ldk_node::Node;
 
 use crate::api::error::AppError;
 use crate::types::{ChannelInfo, GetInfoResponse};

src/api/info.rs

@@ -3,15 +3,14 @@ use std::sync::Arc;
 
 use axum::extract::Path;
 use axum::Json;
+use chrono::{DateTime, SecondsFormat};
 use hex::FromHex;
-use ldk_server::ldk_node::bitcoin::hashes::sha256;
-use ldk_server::ldk_node::bitcoin::hashes::Hash as _;
-use ldk_server::ldk_node::lightning::ln::channelmanager::PaymentId;
-use ldk_server::ldk_node::lightning_invoice::{
-    Bolt11Invoice, Bolt11InvoiceDescription, Description, Sha256,
-};
-use ldk_server::ldk_node::payment::{PaymentDetails, PaymentKind, PaymentStatus};
-use ldk_server::ldk_node::Node;
+use ldk_node::bitcoin::hashes::sha256;
+use ldk_node::bitcoin::hashes::Hash as _;
+use ldk_node::lightning::ln::channelmanager::PaymentId;
+use ldk_node::lightning_invoice::{Bolt11Invoice, Bolt11InvoiceDescription, Description, Sha256};
+use ldk_node::payment::{PaymentDetails, PaymentKind, PaymentStatus};
+use ldk_node::Node;
 use log::{error, info};
 
 use crate::api::error::AppError;
@@ -155,11 +154,9 @@ async fn create_with_checkout(
     let payment_hash = invoice.payment_hash().to_string();
     let expires_at_iso = invoice
         .expires_at()
-        .map(|d| {
-            let dt = time::OffsetDateTime::from_unix_timestamp(d.as_secs() as i64)
-                .expect("valid timestamp");
-            dt.format(&time::format_description::well_known::Rfc3339)
-                .expect("valid rfc3339")
+        .and_then(|d| {
+            DateTime::from_timestamp(d.as_secs() as i64, 0)
+                .map(|dt| dt.to_rfc3339_opts(SecondsFormat::Secs, true))
         })
         .unwrap_or_default();
 
@@ -333,8 +330,8 @@ fn extract_preimage(kind: &PaymentKind) -> Option<String> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use ldk_server::ldk_node::lightning::types::payment::{PaymentHash, PaymentPreimage};
-    use ldk_server::ldk_node::payment::PaymentDirection;
+    use ldk_node::lightning::types::payment::{PaymentHash, PaymentPreimage};
+    use ldk_node::payment::PaymentDirection;
 
     fn test_metadata() -> InvoiceMetadata {
         InvoiceMetadata {

src/api/invoices.rs

@@ -12,7 +12,7 @@ use std::sync::Arc;
 
 use axum::extract::{Path, Query, State};
 use axum::{middleware, Form, Json, Router};
-use ldk_server::ldk_node::Node;
+use ldk_node::Node;
 use tokio::sync::broadcast;
 use utoipa::openapi::security::{Http, HttpAuthScheme, SecurityScheme};
 use utoipa::{Modify, OpenApi};

src/api/mod.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
-use ldk_server::ldk_node::bitcoin::{Address, FeeRate};
-use ldk_server::ldk_node::Node;
+use ldk_node::bitcoin::{Address, FeeRate};
+use ldk_node::Node;
 
 use crate::api::error::AppError;
 use crate::types::SendToAddressRequest;