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|
use anyhow::{anyhow, Result};
use log::{error, info};
use rouille::{router, try_or_400, Request, Response};
use serde_json::json;
use std::fmt;
use std::path::PathBuf;
use std::sync::Mutex;
mod car;
mod crypto;
mod db;
mod did;
mod models;
pub mod mst;
mod repo;
pub use car::{load_car_to_blockstore, load_car_to_sqlite};
pub use crypto::{KeyPair, PubKey};
pub use db::AtpDatabase;
pub use models::*;
pub use repo::{RepoCommit, RepoStore};
#[derive(Debug, serde::Deserialize, serde::Serialize, PartialEq, Eq)]
struct AccountRequest {
email: String,
username: String,
password: String,
}
struct AtpService {
pub repo: RepoStore,
pub atp_db: AtpDatabase,
}
#[derive(Debug)]
enum XrpcError {
BadRequest(String),
NotFound(String),
Forbidden(String),
}
impl std::error::Error for XrpcError {}
impl fmt::Display for XrpcError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::BadRequest(msg) | Self::NotFound(msg) | Self::Forbidden(msg) => {
write!(f, "{}", msg)
}
}
}
}
/// Helper to take an XRPC result (always a JSON object), and transform it to a rouille response
fn xrpc_wrap<S: serde::Serialize>(resp: Result<S>) -> Response {
match resp {
Ok(val) => Response::json(&val),
Err(e) => {
let msg = e.to_string();
let code = match e.downcast_ref::<XrpcError>() {
Some(XrpcError::BadRequest(_)) => 400,
Some(XrpcError::NotFound(_)) => 404,
Some(XrpcError::Forbidden(_)) => 403,
None => 500,
};
Response::json(&json!({ "message": msg })).with_status_code(code)
}
}
}
pub fn run_server(port: u16, blockstore_db_path: &PathBuf, atp_db_path: &PathBuf) -> Result<()> {
// TODO: some static files? https://github.com/tomaka/rouille/blob/master/examples/static-files.rs
let srv = Mutex::new(AtpService {
repo: RepoStore::open(blockstore_db_path)?,
atp_db: AtpDatabase::open(atp_db_path)?,
});
let log_ok = |req: &Request, _resp: &Response, elap: std::time::Duration| {
info!("{} {} ({:?})", req.method(), req.raw_url(), elap);
};
let log_err = |req: &Request, elap: std::time::Duration| {
error!(
"HTTP handler panicked: {} {} ({:?})",
req.method(),
req.raw_url(),
elap
);
};
rouille::start_server(format!("localhost:{}", port), move |request| {
rouille::log_custom(request, log_ok, log_err, || {
router!(request,
(GET) ["/"] => {
Response::text("Not much to see here yet!")
},
(POST) ["/xrpc/com.atproto.createAccount"] => {
let req: AccountRequest = try_or_400!(rouille::input::json_input(request));
let mut srv = srv.lock().unwrap();
xrpc_wrap(srv.atp_db.create_account(&req.username, &req.password, &req.email))
},
(GET) ["/xrpc/com.atproto.{endpoint}", endpoint: String] => {
xrpc_wrap(xrpc_get_atproto(&srv, &endpoint, request))
},
_ => rouille::Response::empty_404()
)
})
});
}
fn xrpc_get_atproto(
srv: &Mutex<AtpService>,
method: &str,
request: &Request,
) -> Result<serde_json::Value> {
match method {
"getAccountsConfig" => {
Ok(json!({"availableUserDomains": ["test"], "inviteCodeRequired": false}))
}
"getRecord" => {
let did = request.get_param("user").unwrap();
let collection = request.get_param("collection").unwrap();
let rkey = request.get_param("rkey").unwrap();
let repo_key = format!("/{}/{}", collection, rkey);
let mut srv = srv.lock().expect("service mutex");
let commit_cid = srv.repo.lookup_commit(&did)?.unwrap();
let key = format!("/{}/{}", collection, rkey);
match srv.repo.get_record_by_key(&commit_cid, &key) {
// TODO: format as JSON, not text debug
Ok(Some(ipld)) => Ok(json!({ "thing": format!("{:?}", ipld) })),
Ok(None) => Err(anyhow!(XrpcError::NotFound(format!(
"could not find record: {}",
key
)))),
Err(e) => Err(e),
}
}
"syncGetRoot" => {
let did = request.get_param("did").unwrap();
let mut srv = srv.lock().expect("service mutex");
srv.repo
.lookup_commit(&did)?
.map(|v| json!({ "root": v }))
.ok_or(anyhow!("XXX: missing"))
}
_ => Err(anyhow!(XrpcError::NotFound(format!(
"XRPC endpoint handler not found: com.atproto.{}",
method
)))),
}
}
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