add nostrdb_net, split into crates

This is just enostr from notedeck!

Fixes: #29

.gitignore

@@ -5,3 +5,4 @@ tags
 target/
 .build-result
 .buildcmd
+build.log

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "nostrdb"]
-	path = nostrdb
+	path = nostrdb_rs/nostrdb
 	url = https://github.com/damus-io/nostrdb

Cargo.toml

@@ -1,30 +1,27 @@
-[package]
-name = "nostrdb"
-authors = ["William Casarin <[email protected]>"]
-description = "An unfairly fast embedded nostr database backed by lmdb"
-readme = "README.md"
-version = "0.5.1"
-edition = "2021"
-build = "build.rs"
-license = "GPL-3.0-or-later"
-homepage = "https://github.com/damus-io/nostrdb-rs/"
-repository = "https://github.com/damus-io/nostrdb-rs/"
+[workspace]
+resolver = "2"
+members = [
+    "nostrdb_rs",
+    "nostrdb_net",
+]
 
-[build-dependencies]
-cc = "1.0"
-bindgen = "0.69.1"
-
-[features]
-bindgen = []
-
-[dependencies]
-flatbuffers = "23.5.26"
+[workspace.dependencies]
+bech32 = { version = "0.11", default-features = false }
+dirs = "5.0.1"
+hex = "0.4.3"
 libc = "0.2.151"
+nostrdb_net = { path = "nostrdb_net" } 
+nostrdb = { path = "nostrdb_rs" } 
+nostr = { version = "0.37.0", default-features = false, features = ["std", "nip49"] }
+serde_derive = "1"
+serde_json = "1.0.89"
+serde = { version = "1", features = ["derive"] }
+tempfile = "3.13.0"
 thiserror = "2.0.7"
-futures = "0.3.31"
-tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
+tokio = { version = "1.16", features = ["macros", "rt-multi-thread"] }
+#tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
 tracing = "0.1.40"
 tracing-subscriber = "0.3.18"
-
-[dev-dependencies]
-hex = "0.4.3"
+url = "2.5.2"
+urlencoding = "2.1.3"
+uuid = { version = "1.10.0", features = ["v4"] }

nostrdb_net/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "nostrdb_net"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+ewebsock = { version = "0.8.0", features = ["tls"] }
+serde_derive = "1"
+serde = { version = "1", features = ["derive"] } # You only need this if you want app persistence
+serde_json = { workspace = true }
+nostr = { workspace = true }
+bech32 = { workspace = true }
+nostrdb = { workspace = true }
+hex = { workspace = true }
+tracing = { workspace = true }
+thiserror = { workspace = true }
+url = { workspace = true }

nostrdb_net/src/client/message.rs

@@ -0,0 +1,59 @@
+use crate::{Error, Note};
+use nostrdb::Filter;
+use serde_json::json;
+
+/// Messages sent by clients, received by relays
+#[derive(Debug)]
+pub enum ClientMessage {
+    Event {
+        note: Note,
+    },
+    Req {
+        sub_id: String,
+        filters: Vec<Filter>,
+    },
+    Close {
+        sub_id: String,
+    },
+    Raw(String),
+}
+
+impl ClientMessage {
+    pub fn event(note: Note) -> Self {
+        ClientMessage::Event { note }
+    }
+
+    pub fn raw(raw: String) -> Self {
+        ClientMessage::Raw(raw)
+    }
+
+    pub fn req(sub_id: String, filters: Vec<Filter>) -> Self {
+        ClientMessage::Req { sub_id, filters }
+    }
+
+    pub fn close(sub_id: String) -> Self {
+        ClientMessage::Close { sub_id }
+    }
+
+    pub fn to_json(&self) -> Result<String, Error> {
+        Ok(match self {
+            Self::Event { note } => json!(["EVENT", note]).to_string(),
+            Self::Raw(raw) => raw.clone(),
+            Self::Req { sub_id, filters } => {
+                if filters.is_empty() {
+                    format!("[\"REQ\",\"{}\",{{ }}]", sub_id)
+                } else if filters.len() == 1 {
+                    let filters_json_str = filters[0].json()?;
+                    format!("[\"REQ\",\"{}\",{}]", sub_id, filters_json_str)
+                } else {
+                    let filters_json_str: Result<Vec<String>, Error> = filters
+                        .iter()
+                        .map(|f| f.json().map_err(Into::<Error>::into))
+                        .collect();
+                    format!("[\"REQ\",\"{}\",{}]", sub_id, filters_json_str?.join(","))
+                }
+            }
+            Self::Close { sub_id } => json!(["CLOSE", sub_id]).to_string(),
+        })
+    }
+}

nostrdb_net/src/client/mod.rs

@@ -0,0 +1,3 @@
+mod message;
+
+pub use message::ClientMessage;

nostrdb_net/src/error.rs

@@ -0,0 +1,55 @@
+//use nostr::prelude::secp256k1;
+use std::array::TryFromSliceError;
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error("message is empty")]
+    Empty,
+
+    #[error("decoding failed")]
+    DecodeFailed,
+
+    #[error("hex decoding failed")]
+    HexDecodeFailed,
+
+    #[error("invalid bech32")]
+    InvalidBech32,
+
+    #[error("invalid byte size")]
+    InvalidByteSize,
+
+    #[error("invalid signature")]
+    InvalidSignature,
+
+    #[error("invalid public key")]
+    InvalidPublicKey,
+
+    // Secp(secp256k1::Error),
+    #[error("json error: {0}")]
+    Json(#[from] serde_json::Error),
+
+    #[error("nostrdb error: {0}")]
+    Nostrdb(#[from] nostrdb::Error),
+
+    #[error("{0}")]
+    Generic(String),
+}
+
+impl From<String> for Error {
+    fn from(s: String) -> Self {
+        Error::Generic(s)
+    }
+}
+
+impl From<TryFromSliceError> for Error {
+    fn from(_e: TryFromSliceError) -> Self {
+        Error::InvalidByteSize
+    }
+}
+
+impl From<hex::FromHexError> for Error {
+    fn from(_e: hex::FromHexError) -> Self {
+        Error::HexDecodeFailed
+    }
+}

nostrdb_net/src/filter.rs

@@ -0,0 +1 @@
+pub type Filter = nostrdb::Filter;

nostrdb_net/src/keypair.rs

@@ -0,0 +1,139 @@
+use nostr::nips::nip49::EncryptedSecretKey;
+use serde::Deserialize;
+use serde::Serialize;
+
+use crate::Pubkey;
+use crate::SecretKey;
+
+#[derive(Debug, Eq, PartialEq, Clone)]
+pub struct Keypair {
+    pub pubkey: Pubkey,
+    pub secret_key: Option<SecretKey>,
+}
+
+impl Keypair {
+    pub fn from_secret(secret_key: SecretKey) -> Self {
+        let cloned_secret_key = secret_key.clone();
+        let nostr_keys = nostr::Keys::new(secret_key);
+        Keypair {
+            pubkey: Pubkey::new(nostr_keys.public_key().to_bytes()),
+            secret_key: Some(cloned_secret_key),
+        }
+    }
+
+    pub fn new(pubkey: Pubkey, secret_key: Option<SecretKey>) -> Self {
+        Keypair { pubkey, secret_key }
+    }
+
+    pub fn only_pubkey(pubkey: Pubkey) -> Self {
+        Keypair {
+            pubkey,
+            secret_key: None,
+        }
+    }
+
+    pub fn to_full(&self) -> Option<FilledKeypair<'_>> {
+        self.secret_key.as_ref().map(|secret_key| FilledKeypair {
+            pubkey: &self.pubkey,
+            secret_key,
+        })
+    }
+}
+
+#[derive(Debug, Eq, PartialEq, Clone)]
+pub struct FullKeypair {
+    pub pubkey: Pubkey,
+    pub secret_key: SecretKey,
+}
+
+#[derive(Debug, Eq, PartialEq, Clone, Copy)]
+pub struct FilledKeypair<'a> {
+    pub pubkey: &'a Pubkey,
+    pub secret_key: &'a SecretKey,
+}
+
+impl<'a> FilledKeypair<'a> {
+    pub fn new(pubkey: &'a Pubkey, secret_key: &'a SecretKey) -> Self {
+        FilledKeypair { pubkey, secret_key }
+    }
+
+    pub fn to_full(&self) -> FullKeypair {
+        FullKeypair {
+            pubkey: self.pubkey.to_owned(),
+            secret_key: self.secret_key.to_owned(),
+        }
+    }
+}
+
+impl FullKeypair {
+    pub fn new(pubkey: Pubkey, secret_key: SecretKey) -> Self {
+        FullKeypair { pubkey, secret_key }
+    }
+
+    pub fn to_filled(&self) -> FilledKeypair<'_> {
+        FilledKeypair::new(&self.pubkey, &self.secret_key)
+    }
+
+    pub fn generate() -> Self {
+        let mut rng = nostr::secp256k1::rand::rngs::OsRng;
+        let (secret_key, _) = &nostr::SECP256K1.generate_keypair(&mut rng);
+        let (xopk, _) = secret_key.x_only_public_key(&nostr::SECP256K1);
+        let secret_key = nostr::SecretKey::from(*secret_key);
+        FullKeypair {
+            pubkey: Pubkey::new(xopk.serialize()),
+            secret_key,
+        }
+    }
+
+    pub fn to_keypair(self) -> Keypair {
+        Keypair {
+            pubkey: self.pubkey,
+            secret_key: Some(self.secret_key),
+        }
+    }
+}
+
+impl std::fmt::Display for Keypair {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "Keypair:\n\tpublic: {}\n\tsecret: {}",
+            self.pubkey,
+            match self.secret_key {
+                Some(_) => "Some(<hidden>)",
+                None => "None",
+            }
+        )
+    }
+}
+
+impl std::fmt::Display for FullKeypair {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "Keypair:\n\tpublic: {}\n\tsecret: <hidden>", self.pubkey)
+    }
+}
+
+#[derive(Debug, Eq, PartialEq, Serialize, Deserialize)]
+pub struct SerializableKeypair {
+    pub pubkey: Pubkey,
+    pub encrypted_secret_key: Option<EncryptedSecretKey>,
+}
+
+impl SerializableKeypair {
+    pub fn from_keypair(kp: &Keypair, pass: &str, log_n: u8) -> Self {
+        Self {
+            pubkey: kp.pubkey,
+            encrypted_secret_key: kp.secret_key.clone().and_then(|s| {
+                EncryptedSecretKey::new(&s, pass, log_n, nostr::nips::nip49::KeySecurity::Weak).ok()
+            }),
+        }
+    }
+
+    pub fn to_keypair(&self, pass: &str) -> Keypair {
+        Keypair::new(
+            self.pubkey,
+            self.encrypted_secret_key
+                .and_then(|e| e.to_secret_key(pass).ok()),
+        )
+    }
+}

nostrdb_net/src/lib.rs

@@ -0,0 +1,23 @@
+mod client;
+mod error;
+mod filter;
+mod keypair;
+mod note;
+mod profile;
+mod pubkey;
+mod relay;
+
+pub use client::ClientMessage;
+pub use error::Error;
+pub use ewebsock;
+pub use filter::Filter;
+pub use keypair::{FilledKeypair, FullKeypair, Keypair, SerializableKeypair};
+pub use nostr::SecretKey;
+pub use note::{Note, NoteId};
+pub use profile::Profile;
+pub use pubkey::Pubkey;
+pub use relay::message::{RelayEvent, RelayMessage};
+pub use relay::pool::{PoolEvent, RelayPool};
+pub use relay::{Relay, RelayStatus};
+
+pub type Result<T> = std::result::Result<T, error::Error>;