Remove old code

This commit is contained in:
Nadja Reitzenstein 2021-10-27 18:01:15 +02:00
parent a14d3fa072
commit 4844fcc0c9
23 changed files with 253 additions and 2451 deletions

245
Cargo.lock generated
View File

@ -146,6 +146,18 @@ dependencies = [
"event-listener",
]
[[package]]
name = "async-native-tls"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9e9e7a929bd34c68a82d58a4de7f86fffdaf97fb2af850162a7bb19dd7269b33"
dependencies = [
"async-std",
"native-tls",
"thiserror",
"url",
]
[[package]]
name = "async-net"
version = "1.6.1"
@ -183,6 +195,26 @@ dependencies = [
"winapi",
]
[[package]]
name = "async-std"
version = "1.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f8056f1455169ab86dd47b47391e4ab0cbd25410a70e9fe675544f49bafaf952"
dependencies = [
"async-channel",
"async-lock",
"crossbeam-utils",
"futures-channel",
"futures-core",
"futures-io",
"memchr",
"once_cell",
"pin-project-lite",
"pin-utils",
"slab",
"wasm-bindgen-futures",
]
[[package]]
name = "async-task"
version = "4.0.3"
@ -323,6 +355,12 @@ dependencies = [
"once_cell",
]
[[package]]
name = "bumpalo"
version = "3.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f1e260c3a9040a7c19a12468758f4c16f31a81a1fe087482be9570ec864bb6c"
[[package]]
name = "byte-tools"
version = "0.3.1"
@ -487,6 +525,22 @@ version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
[[package]]
name = "core-foundation"
version = "0.9.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6888e10551bb93e424d8df1d07f1a8b4fceb0001a3a4b048bfc47554946f47b3"
dependencies = [
"core-foundation-sys",
"libc",
]
[[package]]
name = "core-foundation-sys"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
[[package]]
name = "cpufeatures"
version = "0.2.1"
@ -556,6 +610,7 @@ name = "diflouroborane"
version = "0.3.0"
dependencies = [
"async-channel",
"async-native-tls",
"async-oneshot",
"async-trait",
"bincode",
@ -679,6 +734,21 @@ dependencies = [
"instant",
]
[[package]]
name = "foreign-types"
version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
dependencies = [
"foreign-types-shared",
]
[[package]]
name = "foreign-types-shared"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
[[package]]
name = "form_urlencoded"
version = "1.0.1"
@ -1085,6 +1155,15 @@ version = "0.4.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
[[package]]
name = "js-sys"
version = "0.3.55"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7cc9ffccd38c451a86bf13657df244e9c3f37493cce8e5e21e940963777acc84"
dependencies = [
"wasm-bindgen",
]
[[package]]
name = "lazy_static"
version = "1.4.0"
@ -1185,6 +1264,24 @@ version = "2.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
[[package]]
name = "native-tls"
version = "0.2.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "48ba9f7719b5a0f42f338907614285fb5fd70e53858141f69898a1fb7203b24d"
dependencies = [
"lazy_static",
"libc",
"log",
"openssl",
"openssl-probe",
"openssl-sys",
"schannel",
"security-framework",
"security-framework-sys",
"tempfile",
]
[[package]]
name = "nom"
version = "5.1.2"
@ -1243,6 +1340,39 @@ version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
[[package]]
name = "openssl"
version = "0.10.36"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8d9facdb76fec0b73c406f125d44d86fdad818d66fef0531eec9233ca425ff4a"
dependencies = [
"bitflags",
"cfg-if 1.0.0",
"foreign-types",
"libc",
"once_cell",
"openssl-sys",
]
[[package]]
name = "openssl-probe"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "28988d872ab76095a6e6ac88d99b54fd267702734fd7ffe610ca27f533ddb95a"
[[package]]
name = "openssl-sys"
version = "0.9.67"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "69df2d8dfc6ce3aaf44b40dec6f487d5a886516cf6879c49e98e0710f310a058"
dependencies = [
"autocfg",
"cc",
"libc",
"pkg-config",
"vcpkg",
]
[[package]]
name = "paho-mqtt"
version = "0.8.0"
@ -1677,12 +1807,45 @@ dependencies = [
"winapi-util",
]
[[package]]
name = "schannel"
version = "0.1.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
dependencies = [
"lazy_static",
"winapi",
]
[[package]]
name = "seahash"
version = "4.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
[[package]]
name = "security-framework"
version = "2.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "525bc1abfda2e1998d152c45cf13e696f76d0a4972310b22fac1658b05df7c87"
dependencies = [
"bitflags",
"core-foundation",
"core-foundation-sys",
"libc",
"security-framework-sys",
]
[[package]]
name = "security-framework-sys"
version = "2.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a9dd14d83160b528b7bfd66439110573efcfbe281b17fc2ca9f39f550d619c7e"
dependencies = [
"core-foundation-sys",
"libc",
]
[[package]]
name = "serde"
version = "1.0.130"
@ -2083,6 +2246,12 @@ dependencies = [
"serde",
]
[[package]]
name = "vcpkg"
version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
[[package]]
name = "vec_map"
version = "0.8.2"
@ -2118,6 +2287,82 @@ version = "0.10.2+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
[[package]]
name = "wasm-bindgen"
version = "0.2.78"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "632f73e236b219150ea279196e54e610f5dbafa5d61786303d4da54f84e47fce"
dependencies = [
"cfg-if 1.0.0",
"wasm-bindgen-macro",
]
[[package]]
name = "wasm-bindgen-backend"
version = "0.2.78"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a317bf8f9fba2476b4b2c85ef4c4af8ff39c3c7f0cdfeed4f82c34a880aa837b"
dependencies = [
"bumpalo",
"lazy_static",
"log",
"proc-macro2",
"quote",
"syn",
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-futures"
version = "0.4.28"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e8d7523cb1f2a4c96c1317ca690031b714a51cc14e05f712446691f413f5d39"
dependencies = [
"cfg-if 1.0.0",
"js-sys",
"wasm-bindgen",
"web-sys",
]
[[package]]
name = "wasm-bindgen-macro"
version = "0.2.78"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d56146e7c495528bf6587663bea13a8eb588d39b36b679d83972e1a2dbbdacf9"
dependencies = [
"quote",
"wasm-bindgen-macro-support",
]
[[package]]
name = "wasm-bindgen-macro-support"
version = "0.2.78"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7803e0eea25835f8abdc585cd3021b3deb11543c6fe226dcd30b228857c5c5ab"
dependencies = [
"proc-macro2",
"quote",
"syn",
"wasm-bindgen-backend",
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-shared"
version = "0.2.78"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0237232789cf037d5480773fe568aac745bfe2afbc11a863e97901780a6b47cc"
[[package]]
name = "web-sys"
version = "0.3.55"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "38eb105f1c59d9eaa6b5cdc92b859d85b926e82cb2e0945cd0c9259faa6fe9fb"
dependencies = [
"js-sys",
"wasm-bindgen",
]
[[package]]
name = "wepoll-ffi"
version = "0.1.2"

View File

@ -22,6 +22,7 @@ libc = "0.2.101"
lazy_static = "1.4.0"
uuid = { version = "0.8.2", features = ["serde", "v4"] }
async-trait = "0.1.51"
async-native-tls = "0.3"
# Runtime
smol = "1.2.5"

View File

@ -1,155 +0,0 @@
use std::collections::HashMap;
use std::path::Path;
use std::sync::Arc;
use slog::Logger;
use lmdb::{Environment, Transaction, RwTransaction, Cursor};
use crate::config::Config;
use crate::error::Result;
use crate::db::access::{Permission, Role, RoleIdentifier, RoleDB};
#[derive(Clone, Debug)]
pub struct Internal {
log: Logger,
env: Arc<Environment>,
roledb: lmdb::Database,
}
impl Internal {
pub fn new(log: Logger, env: Arc<Environment>, roledb: lmdb::Database) -> Self {
Self { log, env, roledb, }
}
/// Check if a given user has the given permission
#[allow(unused)]
pub fn _check<T: Transaction, P: AsRef<Permission>>(&self, txn: &T, user: &UserData, perm: &P)
-> Result<bool>
{
tracing::debug!("Checking user {:?} for permission {:?}", user, perm.as_ref());
// Tally all roles. Makes dependent roles easier
let mut roles = HashMap::new();
for role_id in user.roles.iter() {
tracing::debug!("Tallying role {} for its parents", role_id);
self._tally_role(txn, &mut roles, role_id)?;
}
// Iter all unique role->permissions we've found and early return on match.
// TODO: Change this for negative permissions?
for (roleid, role) in roles.iter() {
tracing::debug!(" checking role {}", roleid);
for perm_rule in role.permissions.iter() {
if perm_rule.match_perm(perm) {
tracing::debug!(" matches permission rule {}", perm_rule);
return Ok(true);
}
tracing::trace!(" rejecting permission rule {}", perm_rule);
}
}
tracing::debug!("Checked all roles, rejecting access");
return Ok(false);
}
fn _tally_role<T: Transaction>(&self, txn: &T, roles: &mut HashMap<RoleIdentifier, Role>, role_id: &RoleIdentifier) -> Result<()> {
if let Some(role) = self._get_role(txn, role_id)? {
// Only check and tally parents of a role at the role itself if it's the first time we
// see it
if !roles.contains_key(&role_id) {
for parent in role.parents.iter() {
self._tally_role(txn, roles, parent)?;
}
roles.insert(role_id.clone(), role);
}
} else {
tracing::warn!("Did not find role {} while trying to tally", role_id);
}
Ok(())
}
pub fn _get_role<'txn, T: Transaction>(&self, txn: &'txn T, role_id: &RoleIdentifier) -> Result<Option<Role>> {
tracing::debug!("Reading role '{}'", role_id.name);
match txn.get(self.roledb, &role_id.name.as_bytes()) {
Ok(bytes) => {
Ok(Some(flexbuffers::from_slice(bytes)?))
},
Err(lmdb::Error::NotFound) => { Ok(None) },
Err(e) => { Err(e.into()) }
}
}
fn put_role(&self, txn: &mut RwTransaction, role_id: &RoleIdentifier, role: Role) -> Result<()> {
let bytes = flexbuffers::to_vec(role)?;
txn.put(self.roledb, &role_id.name.as_bytes(), &bytes, lmdb::WriteFlags::empty())?;
Ok(())
}
pub fn dump_roles(&self) -> Result<Vec<(RoleIdentifier, Role)>> {
let txn = self.env.begin_ro_txn()?;
self.dump_roles_txn(&txn)
}
pub fn dump_roles_txn<T: Transaction>(&self, txn: &T) -> Result<Vec<(RoleIdentifier, Role)>> {
let mut cursor = txn.open_ro_cursor(self.roledb)?;
let mut vec = Vec::new();
for r in cursor.iter_start() {
match r {
Ok( (k,v) ) => {
let role_name_str = unsafe { std::str::from_utf8_unchecked(k) };
let role_id = RoleIdentifier::local_from_str("lmdb".to_string(), role_name_str.to_string());
match flexbuffers::from_slice(v) {
Ok(role) => vec.push((role_id, role)),
Err(e) => tracing::error!("Bad format for roleid {}: {}", role_id,
e),
}
},
Err(e) => return Err(e.into()),
}
}
Ok(vec)
}
pub fn load_roles<P: AsRef<Path>>(&self, path: P) -> Result<()> {
let mut txn = self.env.begin_rw_txn()?;
self.load_roles_txn(&mut txn, path.as_ref())?;
// In case the above didn't error, commit.
txn.commit()?;
Ok(())
}
fn load_roles_txn(&self, txn: &mut RwTransaction, path: &Path) -> Result<()> {
let roles = Role::load_file(path)?;
for (k,v) in roles.iter() {
self.put_role(txn, k, v.clone())?;
}
tracing::debug!("Loaded roles: {:?}", roles);
Ok(())
}
}
impl RoleDB for Internal {
fn get_type_name(&self) -> &'static str {
"Internal"
}
fn get_role(&self, role_id: &RoleIdentifier) -> Result<Option<Role>> {
let txn = self.env.begin_ro_txn()?;
self._get_role(&txn, role_id)
}
fn tally_role(&self, roles: &mut HashMap<RoleIdentifier, Role>, role_id: &RoleIdentifier) -> Result<()> {
let txn = self.env.begin_ro_txn()?;
self._tally_role(&txn, roles, role_id)
}
}

View File

@ -1,181 +0,0 @@
use std::pin::Pin;
use std::task::{Poll, Context};
use std::sync::Mutex;
use std::collections::HashMap;
use std::future::Future;
use futures::{future::BoxFuture, Stream};
use futures::channel::mpsc;
use futures_signals::signal::Signal;
use crate::db::machine::MachineState;
use crate::config::Config;
use crate::error::Result;
use paho_mqtt::AsyncClient;
use slog::Logger;
pub trait Actuator {
fn apply(&mut self, state: MachineState) -> BoxFuture<'static, ()>;
}
pub type ActorSignal = Box<dyn Signal<Item=MachineState> + Unpin + Send>;
pub struct Actor {
// FIXME: This should really be a Signal.
// But, alas, MutableSignalCloned is itself not `Clone`. For good reason as keeping track of
// the changes itself happens in a way that Clone won't work (well).
// So, you can't clone it, you can't copy it and you can't get at the variable inside outside
// of a task context. In short, using Mutable isn't possible and we would have to write our own
// implementation of MutableSignal*'s . Preferably with the correct optimizations for our case
// where there is only one consumer. So a mpsc channel that drops all but the last input.
rx: mpsc::Receiver<Option<ActorSignal>>,
inner: Option<ActorSignal>,
actuator: Box<dyn Actuator + Send + Sync>,
future: Option<BoxFuture<'static, ()>>,
}
impl Actor {
pub fn new(rx: mpsc::Receiver<Option<ActorSignal>>, actuator: Box<dyn Actuator + Send + Sync>) -> Self {
Self {
rx: rx,
inner: None,
actuator: actuator,
future: None,
}
}
pub fn wrap(actuator: Box<dyn Actuator + Send + Sync>) -> (mpsc::Sender<Option<ActorSignal>>, Self) {
let (tx, rx) = mpsc::channel(1);
(tx, Self::new(rx, actuator))
}
}
impl Future for Actor {
type Output = ();
fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
let mut this = &mut *self;
let mut done = false; // Is the channel with new state-signals exhausted?
// FIXME: This is potentially invalid, and may lead to the situation that the signal is
// replaced *twice* but the second change will not be honoured since this implementation of
// events is *EDGE*-triggered!
// Update the signal we're polling from, if there is an update that is.
match Stream::poll_next(Pin::new(&mut this.rx), cx) {
Poll::Ready(None) => done = true,
Poll::Ready(Some(new_signal)) => this.inner = new_signal,
Poll::Pending => { },
}
// Work until there is no more work to do.
loop {
// Poll the `apply` future. And ensure it's completed before the next one is started
match this.future.as_mut().map(|future| Future::poll(Pin::new(future), cx)) {
// Skip and poll for a new future to do
None => { }
// This apply future is done, get a new one
Some(Poll::Ready(_)) => this.future = None,
// This future would block so we return to continue work another time
Some(Poll::Pending) => return Poll::Pending,
}
// Poll the signal and apply any change that happen to the inner Actuator
match this.inner.as_mut().map(|inner| Signal::poll_change(Pin::new(inner), cx)) {
// No signal to poll
None => return Poll::Pending,
Some(Poll::Pending) => return Poll::Pending,
Some(Poll::Ready(None)) => {
this.inner = None;
if done {
return Poll::Ready(());
} else {
return Poll::Pending;
}
},
Some(Poll::Ready(Some(state))) => {
// This future MUST be polled before we exit from the Actor::poll because if we
// do not do that it will not register the dependency and thus NOT BE POLLED.
this.future.replace(this.actuator.apply(state));
}
}
}
}
}
pub struct Dummy {
log: Logger,
}
impl Dummy {
pub fn new(log: Logger) -> Self {
Self { log }
}
}
impl Actuator for Dummy {
fn apply(&mut self, state: MachineState) -> BoxFuture<'static, ()> {
info!(self.log, "New state for dummy actuator: {:?}", state);
Box::pin(smol::future::ready(()))
}
}
pub fn load(log: &Logger, config: &Config) -> Result<(ActorMap, Vec<Actor>)> {
let mut map = HashMap::new();
let mqtt = AsyncClient::new(config.mqtt_url.clone())?;
let tok = mqtt.connect(paho_mqtt::ConnectOptions::new());
smol::block_on(tok)?;
let actuators = config.actors.iter()
.map(|(k,v)| (k, load_single(log, k, &v.module, &v.params, mqtt.clone())))
.filter_map(|(k, n)| match n {
None => None,
Some(a) => Some((k, a))
});
let mut v = Vec::new();
for (name, actuator) in actuators {
let (tx, a) = Actor::wrap(actuator);
map.insert(name.clone(), Mutex::new(tx));
v.push(a);
}
Ok(( map, v ))
}
fn load_single(
log: &Logger,
name: &String,
module_name: &String,
params: &HashMap<String, String>,
client: AsyncClient,
) -> Option<Box<dyn Actuator + Sync + Send>>
{
use crate::modules::*;
info!(log, "Loading actor \"{}\" with module {} and params {:?}", name, module_name, params);
let log = log.new(o!("name" => name.clone()));
match module_name.as_ref() {
"Dummy" => {
Some(Box::new(Dummy::new(log)))
}
"Process" => {
Process::new(log, name.clone(), params)
.map(|a| a.into_boxed_actuator())
}
"Shelly" => {
Some(Box::new(Shelly::new(log, name.clone(), client)))
}
_ => {
error!(log, "No actor found with name \"{}\", configured as \"{}\".", module_name, name);
None
},
}
}

View File

@ -1,292 +0,0 @@
//! Authentication subsystem
//!
//! Authorization is over in `permissions`
//! Authentication using SASL
use std::sync::Arc;
use std::rc::Rc;
use std::cell::RefCell;
use std::ops::Deref;
use slog::Logger;
use rsasl::{
SASL,
RSASL,
Property,
Session as SaslSession,
ReturnCode,
Callback,
Step,
};
use serde::{Serialize, Deserialize};
use capnp::capability::{Params, Results, Promise};
use crate::api::Session;
pub use crate::schema::authenticationsystem_capnp as auth_system;
use crate::db::Databases;
use crate::db::pass::PassDB;
use crate::db::user::{Internal as UserDB, UserId, User};
use crate::db::access::AccessControl as AccessDB;
pub struct AppData {
userdb: Arc<UserDB>,
}
pub struct SessionData {
authz: Option<User>,
}
struct CB;
impl Callback<AppData, SessionData> for CB {
fn callback(sasl: &mut SASL<AppData, SessionData>,
session: &mut SaslSession<SessionData>,
prop: Property
) -> Result<(), ReturnCode>
{
let ret = match prop {
Property::GSASL_VALIDATE_SIMPLE => {
// FIXME: get_property and retrieve_mut can't be used interleaved but that's
// technically safe.
let authid: &str = session
.get_property(Property::GSASL_AUTHID)
.ok_or(ReturnCode::GSASL_NO_AUTHID)
.and_then(|a| match a.to_str() {
Ok(s) => Ok(s),
Err(_) => Err(ReturnCode::GSASL_SASLPREP_ERROR),
})?;
let pass = session.get_property(Property::GSASL_PASSWORD)
.ok_or(ReturnCode::GSASL_NO_PASSWORD)?;
if let Some(appdata) = sasl.retrieve_mut() {
if let Ok(Some(user)) = appdata.userdb.login(authid, pass.to_bytes()) {
session.retrieve_mut().unwrap().authz.replace(user);
return Ok(());
}
}
ReturnCode::GSASL_AUTHENTICATION_ERROR
}
p => {
println!("Callback called with property {:?}", p);
ReturnCode::GSASL_NO_CALLBACK
}
};
Err(ret)
}
}
pub struct Auth {
pub ctx: RSASL<AppData, SessionData>,
session: Rc<RefCell<Option<Session>>>,
access: Arc<AccessDB>,
log: Logger,
}
impl Auth {
pub fn new(log: Logger, dbs: Databases, session: Rc<RefCell<Option<Session>>>) -> Self {
let mut ctx = SASL::new().unwrap();
let appdata = Box::new(AppData { userdb: dbs.userdb.clone() });
ctx.store(appdata);
ctx.install_callback::<CB>();
Self { log, ctx, session, access: dbs.access.clone() }
}
}
use crate::schema::authenticationsystem_capnp::*;
impl authentication_system::Server for Auth {
fn mechanisms(&mut self,
_: authentication_system::MechanismsParams,
mut res: authentication_system::MechanismsResults
) -> Promise<(), capnp::Error> {
/*let mechs = match self.ctx.server_mech_list() {
Ok(m) => m,
Err(e) => {
return Promise::err(capnp::Error {
kind: capnp::ErrorKind::Failed,
description: format!("SASL Failure: {}", e),
})
},
};
let mechvec: Vec<&str> = mechs.iter().collect();
let mut res_mechs = res.get().init_mechs(mechvec.len() as u32);
for (i, m) in mechvec.into_iter().enumerate() {
res_mechs.set(i as u32, m);
}*/
// For now, only PLAIN
let mut res_mechs = res.get().init_mechs(1);
res_mechs.set(0, "PLAIN");
Promise::ok(())
}
// TODO: return Outcome instead of exceptions
fn start(&mut self,
params: authentication_system::StartParams,
mut res: authentication_system::StartResults
) -> Promise<(), capnp::Error> {
let req = pry!(pry!(params.get()).get_request());
// Extract the MECHANISM the client wants to use and start a session.
// Or fail at that and thrown an exception TODO: return Outcome
let mech = pry!(req.get_mechanism());
if pry!(req.get_mechanism()) != "PLAIN" {
return Promise::err(capnp::Error {
kind: capnp::ErrorKind::Failed,
description: format!("Invalid SASL mech"),
})
}
let mut session = match self.ctx.server_start(mech) {
Ok(s) => s,
Err(e) =>
return Promise::err(capnp::Error {
kind: capnp::ErrorKind::Failed,
description: format!("SASL error: {}", e),
}),
};
session.store(Box::new(SessionData { authz: None }));
// If the client has provided initial data go use that
use request::initial_response::Which;
let step_res = match req.get_initial_response().which() {
Err(capnp::NotInSchema(_)) =>
return Promise::err(capnp::Error {
kind: capnp::ErrorKind::Failed,
description: "Initial data is badly formatted".to_string(),
}),
Ok(Which::None(_)) => {
// FIXME: Actually this needs to indicate NO data instead of SOME data of 0 length
session.step(&[])
}
Ok(Which::Initial(data)) => {
session.step(pry!(data))
}
};
// The step may either return an error, a success or the need for more data
// TODO: Set the session user. Needs a lookup though <.>
use response::Result as Resres;
match step_res {
Ok(Step::Done(b)) => {
let user = session
.retrieve_mut()
.and_then(|data| {
data.authz.take()
})
.expect("Authentication returned OK but didn't set user id");
let perms = pry!(self.access.collect_permrules(&user.data)
.map_err(|e| capnp::Error::failed(format!("AccessDB lookup failed: {}", e))));
self.session.replace(Some(Session::new(
self.log.new(o!()),
user.id,
"".to_string(),
user.data.roles.into_boxed_slice(),
perms.into_boxed_slice()
)));
let mut outcome = pry!(res.get().get_response()).init_outcome();
outcome.reborrow().set_result(Resres::Successful);
if b.len() != 0 {
outcome.init_additional_data().set_additional(&b);
}
Promise::ok(())
},
Ok(Step::NeedsMore(b)) => {
pry!(res.get().get_response()).set_challence(&b);
Promise::ok(())
}
// TODO: This should really be an outcome because this is failed auth just as much atm.
Err(e) => {
let mut outcome = pry!(res.get().get_response()).init_outcome();
outcome.reborrow().set_result(Resres::Failed);
let text = format!("{}", e);
outcome.set_help_text(&text);
Promise::ok(())
}
}
}
}
// Use the newtype pattern here to make the type system work for us; even though AuthCId is for all
// intents and purposes just a String the compiler will still complain if you return or more
// importantly pass a String intead of a AuthCId. This prevents bugs where you get an object from
// somewhere and pass it somewhere else and in between don't check if it's the right type and
// accidentally pass the authzid where the authcid should have gone.
// What is a man?! A miserable little pile of secrets!
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
/// Authentication/Authorization user object.
///
/// This struct describes the user as can be gathered from API authentication exchanges.
/// Specifically this is the value bffh gets after a successful authentication.
///
pub struct AuthenticationData {
/// Contains the Authentication ID used
///
/// The authentication ID is an identifier for the authentication exchange. This is
/// conceptually different than the ID of the user to be authenticated; for example when using
/// x509 the authcid is the dn of the certificate, when using GSSAPI the authcid is of form
/// `<ID>@<REALM>`
authcid: String,
/// Authorization ID
///
/// The authzid represents the identity that a client wants to act as. In our case this is
/// always an user id. If unset no preference is indicated and the server will authenticate the
/// client as whatever user — if any — they associate with the authcid. Setting the authzid is
/// useful in a number if situations:
/// If somebody wants to authenticate as somebody else, su-style.
/// If a person wants to authenticate as a higher-permissions account, e.g. foo may set authzid foo+admin
/// to split normal user and "admin" accounts.
/// If a method requires a specific authcid that is different from the identifier of the user
/// to authenticate as, e.g. GSSAPI, x509 client certificates, API TOKEN authentication.
authzid: String,
/// Contains the authentication method used
///
/// For the most part this is the SASL method
auth_method: String,
/// Method-specific key-value pairs
///
/// Each method can use their own key-value pairs.
/// E.g. EXTERNAL encodes the actual method used (x509 client certs, UID/GID for unix sockets,
/// ...)
kvs: Box<[(String, String)]>,
}
// Authentication has two parts: Granting the authentication itself and then performing the
// authentication.
// Granting the authentication checks if
// a) the given authcid fits with the given (authMethod, kvs). In general a failure here indicates
// a programming failure — the authcid come from the same source as that tuple
// b) the given authcid may authenticate as the given authzid. E.g. if a given client certificate
// has been configured for that user, if a GSSAPI user maps to a given user,
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
pub enum AuthError {
/// Authentication ID is bad/unknown/..
BadAuthcid,
/// Authorization ID is unknown/..
BadAuthzid,
/// Authorization ID is not of form user+uid@realm
MalformedAuthzid,
/// User may not use that authorization id
NotAllowedAuthzid,
}

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@ -1,253 +0,0 @@
use std::sync::Arc;
use std::time::Duration;
use capnp::capability::Promise;
use capnp::Error;
use futures::FutureExt;
use crate::db::access::{PrivilegesBuf, PermRule};
use crate::db::user::UserId;
use crate::db::machine::{Status, MachineState};
use crate::machine::Machine as NwMachine;
use crate::schema::machine_capnp::machine::*;
use crate::schema::machine_capnp::machine::MachineState as APIMState;
#[derive(Clone, Copy)]
pub struct Perms {
pub disclose: bool,
pub read: bool,
pub write: bool,
pub manage: bool,
}
impl Perms {
pub fn get_for<'a, I: Iterator<Item=&'a PermRule>>(privs: &'a PrivilegesBuf, rules: I) -> Self {
let mut disclose = false;
let mut read = false;
let mut write = false;
let mut manage = false;
for rule in rules {
if rule.match_perm(&privs.disclose) {
disclose = true;
}
if rule.match_perm(&privs.read) {
read = true;
}
if rule.match_perm(&privs.write) {
write = true;
}
if rule.match_perm(&privs.manage) {
manage = true;
}
}
Self { disclose, read, write, manage }
}
}
#[derive(Clone)]
pub struct Machine {
userid: UserId,
perms: Perms,
machine: NwMachine,
}
impl Machine {
pub fn new(userid: UserId, perms: Perms, machine: NwMachine) -> Self {
Self { userid, perms, machine }
}
}
impl info::Server for Machine {
fn get_machine_info_extended(
&mut self,
_: info::GetMachineInfoExtendedParams,
_results: info::GetMachineInfoExtendedResults,
) -> Promise<(), capnp::Error> {
/*if self.perms.manage {
let mut builder = results.get();
let mut extinfo = builder.init_machine_info_extended();
let mut current = extinfo.init_current_user();
// FIXME fill user
}
Promise::ok(())*/
Promise::err(capnp::Error::unimplemented("Extended Infos are unavailable".to_string()))
}
fn get_reservation_list(
&mut self,
_: info::GetReservationListParams,
mut results: info::GetReservationListResults,
) -> Promise<(), capnp::Error> {
Promise::err(capnp::Error::unimplemented("Reservations are unavailable".to_string()))
}
fn get_property_list(
&mut self,
_: info::GetPropertyListParams,
mut results: info::GetPropertyListResults,
) -> Promise<(), capnp::Error> {
Promise::err(capnp::Error::unimplemented("Extended Properties are unavailable".to_string()))
}
}
impl use_::Server for Machine {
fn use_(
&mut self,
_: use_::UseParams,
_: use_::UseResults
) -> Promise<(), capnp::Error> {
let machine = self.machine.get_inner();
let userid = self.userid.clone();
let f = async move {
let mut guard = machine.lock().await;
let mut ok = false;
{
match { guard.read_state().lock_ref().state.clone() } {
Status::Free => {
ok = true;
},
Status::Reserved(ref whom) => {
// If it's reserved for us or we're allowed to take over
if &userid == whom {
ok = true;
}
},
_ => { }
}
}
if ok {
guard.do_state_change(MachineState::used(Some(userid)));
}
Ok(())
};
let g = smol::future::race(f, smol::Timer::after(Duration::from_secs(4))
.map(|_| Err(capnp::Error::failed("Waiting for machine lock timed out!".to_string()))));
Promise::from_future(g)
}
}
impl in_use::Server for Machine {
fn give_back(
&mut self,
_:in_use::GiveBackParams,
_:in_use::GiveBackResults
) -> Promise<(), capnp::Error> {
let machine = self.machine.get_inner();
let userid = self.userid.clone();
let f = async move {
let mut guard = machine.lock().await;
let mut ok = false;
{
match { guard.read_state().lock_ref().state.clone() } {
Status::InUse(ref whom) => {
if &Some(userid) == whom {
ok = true;
}
},
_ => { }
}
}
if ok {
guard.reset_state()
}
Ok(())
};
Promise::from_future(f)
}
}
impl transfer::Server for Machine {
}
impl check::Server for Machine {
}
impl manage::Server for Machine {
fn force_free(&mut self,
_: manage::ForceFreeParams,
_: manage::ForceFreeResults
) -> Promise<(), capnp::Error> {
let machine = self.machine.get_inner();
let f = async move {
let mut guard = machine.lock().await;
guard.do_state_change(MachineState::free());
Ok(())
};
Promise::from_future(f)
}
fn force_use(&mut self,
_: manage::ForceUseParams,
_: manage::ForceUseResults
) -> Promise<(), capnp::Error> {
let machine = self.machine.get_inner();
let f = async move {
let mut guard = machine.lock().await;
guard.do_state_change(MachineState::used(None));
Ok(())
};
Promise::from_future(f)
}
fn block(&mut self,
_:manage::BlockParams,
_:manage::BlockResults
) -> Promise<(), capnp::Error> {
let machine = self.machine.get_inner();
let uid = self.userid.clone();
let f = async move {
let mut guard = machine.lock().await;
guard.do_state_change(MachineState::blocked(uid));
Ok(())
};
Promise::from_future(f)
}
fn disabled(&mut self,
_:manage::DisabledParams,
_:manage::DisabledResults
) -> Promise<(), capnp::Error> {
let machine = self.machine.get_inner();
let f = async move {
let mut guard = machine.lock().await;
guard.do_state_change(MachineState::disabled());
Ok(())
};
Promise::from_future(f)
}
}
impl admin::Server for Machine {
fn force_set_state(&mut self,
params: admin::ForceSetStateParams,
_:admin::ForceSetStateResults
) -> Promise<(), capnp::Error> {
let uid = self.userid.clone();
let state = match pry!(pry!(params.get()).get_state()) {
APIMState::Free => MachineState::free(),
APIMState::Blocked => MachineState::blocked(uid),
APIMState::Disabled => MachineState::disabled(),
APIMState::InUse => MachineState::used(Some(uid)),
APIMState::Reserved => MachineState::reserved(uid),
APIMState::ToCheck => MachineState::check(uid),
};
let machine = self.machine.get_inner();
let f = async move {
let mut guard = machine.lock().await;
guard.do_state_change(state);
Ok(())
};
Promise::from_future(f)
}
}

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@ -1,194 +0,0 @@
use std::sync::Arc;
use std::cell::RefCell;
use std::rc::Rc;
use std::ops::Deref;
use capnp::capability::Promise;
use capnp::Error;
use crate::db::machine::Status;
use crate::api::machine::*;
use crate::schema::machine_capnp::machine::MachineState;
use crate::schema::machinesystem_capnp::machine_system;
use crate::schema::machinesystem_capnp::machine_system::info as machines;
use crate::network::Network;
use crate::db::user::UserId;
use crate::db::access::{PermRule, admin_perm};
use crate::connection::Session;
/// An implementation of the `Machines` API
#[derive(Clone)]
pub struct Machines {
session: Rc<RefCell<Option<Session>>>,
network: Arc<Network>,
}
impl Machines {
pub fn new(session: Rc<RefCell<Option<Session>>>, network: Arc<Network>) -> Self {
Self { session, network }
}
}
impl machine_system::Server for Machines {
// This function shouldn't exist. See fabaccess-api issue #16
fn info(&mut self,
_:machine_system::InfoParams,
mut results: machine_system::InfoResults
) -> capnp::capability::Promise<(), capnp::Error>
{
results.get().set_info(capnp_rpc::new_client(self.clone()));
Promise::ok(())
}
}
impl machines::Server for Machines {
fn get_machine_list(&mut self,
_params: machines::GetMachineListParams,
mut results: machines::GetMachineListResults)
-> Promise<(), Error>
{
let rc = Rc::clone(&self.session);
let session = self.session.borrow();
if session.deref().is_some() {
let v: Vec<(String, crate::machine::Machine)> = self.network.machines.iter()
.filter(|(_name, machine)| {
let required_disclose = &machine.desc.privs.disclose;
for perm_rule in session.as_ref().unwrap().perms.iter() {
if perm_rule.match_perm(required_disclose) {
return true;
}
}
false
})
.map(|(n,m)| (n.clone(), m.clone()))
.collect();
let f = async move {
let session = rc.borrow();
let user = &session.as_ref().unwrap().authzid;
let permissions = &session.as_ref().unwrap().perms;
let mut machines = results.get().init_machine_list(v.len() as u32);
for (i, (name, machine)) in v.into_iter().enumerate() {
let perms = Perms::get_for(&machine.desc.privs, permissions.iter());
let mut builder = machines.reborrow().get(i as u32);
builder.set_name(&name);
if let Some(ref desc) = machine.desc.description {
builder.set_description(desc);
}
let machineapi = Machine::new(user.clone(), perms, machine.clone());
let state = machine.get_status().await;
let s = match state {
Status::Free => MachineState::Free,
Status::Disabled => MachineState::Disabled,
Status::Blocked(_) => MachineState::Blocked,
Status::InUse(ref u) => {
if let Some(owner) = u.as_ref() {
if owner == user {
builder.set_inuse(capnp_rpc::new_client(machineapi.clone()));
}
}
MachineState::InUse
},
Status::Reserved(_) => MachineState::Reserved,
Status::ToCheck(_) => MachineState::ToCheck,
};
builder.set_state(s);
if perms.write && state == Status::Free {
builder.set_use(capnp_rpc::new_client(machineapi.clone()));
}
if perms.manage {
//builder.set_transfer(capnp_rpc::new_client(machineapi.clone()));
//builder.set_check(capnp_rpc::new_client(machineapi.clone()));
builder.set_manage(capnp_rpc::new_client(machineapi.clone()));
}
if permissions.iter().any(|r| r.match_perm(&admin_perm())) {
builder.set_admin(capnp_rpc::new_client(machineapi.clone()));
}
builder.set_info(capnp_rpc::new_client(machineapi));
}
Ok(())
};
Promise::from_future(f)
} else {
Promise::ok(())
}
}
fn get_machine(&mut self,
params: machines::GetMachineParams,
mut results: machines::GetMachineResults
) -> Promise<(), capnp::Error> {
let rc = Rc::clone(&self.session);
if self.session.borrow().is_some() {
let name = {
let params = pry!(params.get());
pry!(params.get_name()).to_string()
};
let network = self.network.clone();
let f = async move {
let session = rc.borrow();
let user = &session.as_ref().unwrap().authzid;
let permissions = &session.as_ref().unwrap().perms;
if let Some(machine) = network.machines.get(&name) {
let mut builder = results.get().init_machine();
let perms = Perms::get_for(&machine.desc.privs, permissions.iter());
builder.set_name(&name);
if let Some(ref desc) = machine.desc.description {
builder.set_description(desc);
}
let machineapi = Machine::new(user.clone(), perms, machine.clone());
let state = machine.get_status().await;
if perms.write && state == Status::Free {
builder.set_use(capnp_rpc::new_client(machineapi.clone()));
}
if perms.manage {
//builder.set_transfer(capnp_rpc::new_client(machineapi.clone()));
//builder.set_check(capnp_rpc::new_client(machineapi.clone()));
builder.set_manage(capnp_rpc::new_client(machineapi.clone()));
}
if permissions.iter().any(|r| r.match_perm(&admin_perm())) {
builder.set_admin(capnp_rpc::new_client(machineapi.clone()));
}
let s = match machine.get_status().await {
Status::Free => MachineState::Free,
Status::Disabled => MachineState::Disabled,
Status::Blocked(_) => MachineState::Blocked,
Status::InUse(u) => {
if let Some(owner) = u.as_ref() {
if owner == user {
builder.set_inuse(capnp_rpc::new_client(machineapi.clone()));
}
}
MachineState::InUse
},
Status::Reserved(_) => MachineState::Reserved,
Status::ToCheck(_) => MachineState::ToCheck,
};
builder.set_state(s);
builder.set_info(capnp_rpc::new_client(machineapi));
};
Ok(())
};
Promise::from_future(f)
} else {
Promise::ok(())
}
}
}

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@ -1,42 +0,0 @@
use std::rc::Rc;
use std::cell::RefCell;
use std::ops::Deref;
use crate::connection::Session;
use crate::db::user as db;
use crate::schema::user_capnp::user::*;
#[derive(Clone)]
pub struct User {
session: Rc<RefCell<Option<Session>>>,
}
impl User {
pub fn new(session: Rc<RefCell<Option<Session>>>) -> Self {
Self { session }
}
pub fn fill_self(&self, builder: &mut Builder) {
if let Some(session) = self.session.borrow().deref() {
self.fill_userid(builder, &session.authzid);
}
}
pub fn fill_with(&self, builder: &mut Builder, user: db::User) {
self.fill_userid(builder, &user.id)
}
pub fn fill_userid(&self, builder: &mut Builder, uid: &db::UserId) {
builder.set_username(&uid.uid);
if let Some(ref realm) = &uid.realm {
let mut space = builder.reborrow().init_space();
space.set_name(&realm);
}
}
}
impl info::Server for User {
}
impl manage::Server for User {}
impl admin::Server for User {}

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@ -1,106 +0,0 @@
use std::cell::RefCell;
use std::rc::Rc;
use std::sync::Arc;
use std::ops::Deref;
use capnp::capability::Promise;
use crate::api::user::User;
use crate::connection::Session;
use crate::db::access::{PermRule, Permission};
use crate::db::user::{UserId, Internal as UserDB};
use crate::schema::usersystem_capnp::user_system;
use crate::schema::usersystem_capnp::user_system::{info, manage};
use crate::error;
#[derive(Clone, Debug)]
pub struct Users {
session: Rc<RefCell<Option<Session>>>,
userdb: Arc<UserDB>,
}
impl Users {
pub fn new(session: Rc<RefCell<Option<Session>>>, userdb: Arc<UserDB>) -> Self {
Self { session, userdb }
}
}
impl user_system::Server for Users {
fn info(
&mut self,
_: user_system::InfoParams,
mut results: user_system::InfoResults,
) -> Promise<(), capnp::Error> {
results.get().set_info(capnp_rpc::new_client(self.clone()));
Promise::ok(())
}
fn manage(
&mut self,
_: user_system::ManageParams,
mut results: user_system::ManageResults,
) -> Promise<(), capnp::Error> {
let perm: &Permission = Permission::new("bffh.users.manage");
if let Some(session) = self.session.borrow().deref() {
if session.perms.iter().any(|rule| rule.match_perm(perm)) {
results
.get()
.set_manage(capnp_rpc::new_client(self.clone()));
}
}
Promise::ok(())
}
}
impl info::Server for Users {
fn get_user_self(
&mut self,
_: info::GetUserSelfParams,
mut results: info::GetUserSelfResults,
) -> Promise<(), capnp::Error> {
let user = User::new(Rc::clone(&self.session));
let mut builder = results.get().init_user();
user.fill_self(&mut builder);
Promise::ok(())
}
}
impl manage::Server for Users {
fn get_user_list(
&mut self,
_: manage::GetUserListParams,
mut results: manage::GetUserListResults,
) -> Promise<(), capnp::Error> {
let result: Result<(), error::Error> =
self.userdb.list_users()
.and_then(|users| {
let mut builder = results.get().init_user_list(users.len() as u32);
let u = User::new(Rc::clone(&self.session));
for (i, user) in users.into_iter().enumerate() {
let mut b = builder.reborrow().get(i as u32);
u.fill_with(&mut b, user);
}
Ok(())
});
match result {
Ok(()) => Promise::ok(()),
Err(e) => Promise::err(capnp::Error::failed("User lookup failed: {}".to_string())),
}
}
/*fn add_user(
&mut self,
params: manage::AddUserParams,
mut results: manage::AddUserResults,
) -> Promise<(), capnp::Error> {
}
fn remove_user(
&mut self,
_: manage::RemoveUserParams,
mut results: manage::RemoveUserResults,
) -> Promise<(), capnp::Error> {
}*/
}

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@ -1,35 +0,0 @@
use lazy_static::lazy_static;
use crate::db::access::Permission;
lazy_static! {
static ref AUTH_PERM: &'static Permission = Permission::new("bffh.auth");
}
//
// lazy_static! {
// pub static ref AUTH_ROLE: RoleIdentifier = {
// RoleIdentifier::Local {
// name: "mayauth".to_string(),
// source: "builtin".to_string(),
// }
// };
// }
//
// lazy_static! {
// pub static ref DEFAULT_ROLEIDS: [RoleIdentifier; 1] = {
// [ AUTH_ROLE.clone(), ]
// };
//
// pub static ref DEFAULT_ROLES: HashMap<RoleIdentifier, Role> = {
// let mut m = HashMap::new();
// m.insert(AUTH_ROLE.clone(),
// Role {
// parents: vec![],
// permissions: vec![
// PermRule::Base(PermissionBuf::from_perm(AUTH_PERM)),
// ]
// }
// );
// m
// };
// }

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@ -1,89 +0,0 @@
use futures::FutureExt;
use std::future::Future;
use std::sync::Arc;
use slog::Logger;
use smol::lock::Mutex;
use smol::net::TcpStream;
use crate::error::Result;
use capnp_rpc::{rpc_twoparty_capnp, twoparty};
#[derive(Debug)]
/// Connection context
// TODO this should track over several connections
pub struct Session {
// Session-spezific log
pub log: Logger,
/// User this session has been authorized as.
///
/// Slightly different than the authnid which indicates as what this session has been
/// authenticated as (e.g. using EXTERNAL auth the authnid would be the CN of the client
/// certificate, but the authzid would be an user)
pub authzid: UserId,
pub authnid: String,
/// Roles this session has been assigned via group memberships, direct role assignment or
/// authentication types
pub roles: Box<[RoleIdentifier]>,
/// Permissions this session has.
///
/// This is a snapshot of the permissions the underlying user has
/// take at time of creation (i.e. session establishment)
pub perms: Box<[PermRule]>,
}
impl Session {
pub fn new(
log: Logger,
authzid: UserId,
authnid: String,
roles: Box<[RoleIdentifier]>,
perms: Box<[PermRule]>,
) -> Self {
Session {
log,
authzid,
authnid,
roles,
perms,
}
}
}
pub struct ConnectionHandler {
log: Logger,
db: Databases,
network: Arc<Network>,
}
impl ConnectionHandler {
pub fn new(log: Logger, db: Databases, network: Arc<Network>) -> Self {
Self { log, db, network }
}
pub fn handle(&mut self, stream: TcpStream) -> impl Future<Output = Result<()>> {
info!(self.log, "New connection from on {:?}", stream);
let boots = Bootstrap::new(self.log.new(o!()), self.db.clone(), self.network.clone());
unimplemented!();
/*let rpc: connection_capnp::bootstrap::Client = capnp_rpc::new_client(boots);
let network = twoparty::VatNetwork::new(
stream.clone(),
stream,
rpc_twoparty_capnp::Side::Server,
Default::default(),
);
let rpc_system = capnp_rpc::RpcSystem::new(Box::new(network), Some(rpc.client));
// Convert the error type to one of our errors
rpc_system.map(|r| r.map_err(Into::into))
*/
}
}

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@ -1,207 +0,0 @@
use std::sync::Arc;
use std::pin::Pin;
use std::task::{Poll, Context};
use std::future::Future;
use std::collections::HashMap;
use smol::Timer;
use slog::Logger;
use futures::future::BoxFuture;
use futures_signals::signal::{Signal, Mutable, MutableSignalCloned};
use crate::machine::{Machine, ReturnToken};
use crate::db::machine::MachineState;
use crate::db::user::{User, UserId, UserData, Internal as UserDB};
use crate::db::access::AccessControl;
use crate::network::InitMap;
use crate::error::Result;
use crate::config::Config;
pub trait Sensor {
fn run_sensor(&mut self) -> BoxFuture<'static, (Option<UserId>, MachineState)>;
}
type BoxSensor = Box<dyn Sensor + Send>;
pub struct Initiator {
log: Logger,
signal: MutableSignalCloned<Option<Machine>>,
machine: Option<Machine>,
future: Option<BoxFuture<'static, (Option<User>, MachineState)>>,
// TODO: Prepare the init for async state change requests.
state_change_fut: Option<BoxFuture<'static, Result<ReturnToken>>>,
token: Option<ReturnToken>,
sensor: BoxSensor,
userdb: UserDB,
access: AccessControl,
}
impl Initiator {
pub fn new(log: Logger, sensor: BoxSensor, signal: MutableSignalCloned<Option<Machine>>, userdb: UserDB, access: AccessControl) -> Self {
Self {
log: log,
signal: signal,
machine: None,
future: None,
state_change_fut: None,
token: None,
sensor: sensor,
userdb,
access,
}
}
pub fn wrap(log: Logger, sensor: BoxSensor, userdb: UserDB, access: Arc<AccessControl>) -> (Mutable<Option<Machine>>, Self) {
let m = Mutable::new(None);
let s = m.signal_cloned();
(m, Self::new(log, sensor, s, userdb, access))
}
}
impl Future for Initiator {
type Output = ();
fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
let mut this = &mut *self;
// First of course, see what machine we should work with.
match Signal::poll_change(Pin::new(&mut this.signal), cx) {
Poll::Pending => { }
Poll::Ready(None) => return Poll::Ready(()),
// Keep in mind this is actually an Option<Machine>
Poll::Ready(Some(machine)) => {
match machine.as_ref().map(|m| m.try_lock()) {
None => info!(this.log, "Deinstalled machine"),
Some(None) => info!(this.log, "Installed new machine with locked mutex!"),
Some(Some(g)) => info!(this.log, "Installed new machine {}", g.id),
}
this.machine = machine;
},
}
// Do as much work as we can:
loop {
// Always poll the state change future first
if let Some(ref mut f) = this.state_change_fut {
match Future::poll(Pin::new(f), cx) {
// If there is a state change future and it would block we return early
Poll::Pending => {
debug!(this.log, "State change blocked");
return Poll::Pending;
},
Poll::Ready(Ok(tok)) => {
debug!(this.log, "State change returned ok");
// Explicity drop the future
let _ = this.state_change_fut.take();
// Store the given return token for future use
this.token.replace(tok);
}
Poll::Ready(Err(e)) => {
info!(this.log, "State change returned err: {}", e);
// Explicity drop the future
let _ = this.state_change_fut.take();
}
}
}
// If there is a future, poll it
match this.future.as_mut().map(|future| Future::poll(Pin::new(future), cx)) {
None => {
this.future = Some(this.sensor.run_sensor());
},
Some(Poll::Ready((uid, state))) => {
debug!(this.log, "Sensor returned a new state");
this.future.take();
let f = this.machine.as_mut().map(|machine| {
machine.request_state_change(state, this.access.clone(), user)
});
this.state_change_fut = f;
}
Some(Poll::Pending) => return Poll::Pending,
}
}
}
}
pub fn load(log: &Logger, config: &Config, userdb: UserDB, access: Arc<AccessControl>) -> Result<(InitMap, Vec<Initiator>)> {
let mut map = HashMap::new();
let initiators = config.initiators.iter()
.map(|(k,v)| (k, load_single(log, k, &v.module, &v.params)))
.filter_map(|(k,n)| match n {
None => None,
Some(i) => Some((k, i)),
});
let mut v = Vec::new();
for (name, initiator) in initiators {
let (m, i) = Initiator::wrap(log.new(o!("name" => name.clone())), initiator, userdb.clone(), access.clone());
map.insert(name.clone(), m);
v.push(i);
}
Ok((map, v))
}
fn load_single(
log: &Logger,
name: &String,
module_name: &String,
_params: &HashMap<String, String>
) -> Option<BoxSensor>
{
match module_name.as_ref() {
"Dummy" => {
Some(Box::new(Dummy::new(log)))
},
_ => {
error!(log, "No initiator found with name \"{}\", configured as \"{}\"",
module_name, name);
None
}
}
}
pub struct Dummy {
log: Logger,
step: bool,
}
impl Dummy {
pub fn new(log: &Logger) -> Self {
Self { log: log.new(o!("module" => "Dummy Initiator")), step: false }
}
}
impl Sensor for Dummy {
fn run_sensor(&mut self)
-> BoxFuture<'static, (Option<UserId>, MachineState)>
{
let step = self.step;
self.step = !step;
info!(self.log, "Kicking off new dummy initiator state change: {}", step);
let f = async move {
Timer::after(std::time::Duration::from_secs(1)).await;
if step {
return (None, MachineState::free());
} else {
let user = UserId::new("test".to_string(), None, None);
return (Some(user), MachineState::used(Some(user)));
}
};
Box::pin(f)
}
}

View File

@ -11,15 +11,14 @@
//mod server;
//mod actor;
//mod initiator;
mod space;
mod config;
mod db;
mod error;
mod network;
mod oid;
mod permissions;
mod resource;
mod schema;
mod state;
pub mod db;
mod network;
pub mod oid;
mod varint;
pub mod error;
pub mod config;
mod permissions;
mod varint;

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@ -1,11 +0,0 @@
use slog::{Drain, Logger};
use slog_async;
use slog_term::{TermDecorator, FullFormat};
pub fn init() -> Logger {
let decorator = TermDecorator::new().build();
let drain = FullFormat::new(decorator).build().fuse();
let drain = slog_async::Async::new(drain).build().fuse();
return slog::Logger::root(drain, o!());
}

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@ -1,363 +0,0 @@
use std::ops::Deref;
use std::iter::FromIterator;
use std::sync::Arc;
use std::path::Path;
use std::task::{Poll, Context};
use std::pin::Pin;
use std::future::Future;
use std::collections::HashMap;
use std::fs;
use serde::{Serialize, Deserialize};
use futures::Stream;
use futures::future::BoxFuture;
use futures::channel::{mpsc, oneshot};
use futures_signals::signal::Signal;
use futures_signals::signal::SignalExt;
use futures_signals::signal::{Mutable, ReadOnlyMutable};
use crate::error::{Result, Error};
use crate::db::access::{AccessControl, PrivilegesBuf, PermissionBuf};
use crate::db::machine::{MachineIdentifier, MachineState, Status};
use crate::db::user::{User, UserData, UserId};
use crate::space;
pub struct Machines {
machines: Vec<Machine>
}
#[derive(Debug, Clone)]
pub struct Index {
inner: HashMap<String, Machine>,
}
impl Index {
pub fn new() -> Self {
Self {
inner: HashMap::new(),
}
}
pub fn insert(&mut self, key: String, value: Machine) -> Option<Machine> {
self.inner.insert(key, value)
}
pub fn get(&mut self, key: &String) -> Option<Machine> {
self.inner.get(key).map(|m| m.clone())
}
}
// Access data of one machine efficiently, using getters/setters for data stored in LMDB backed
// memory
#[derive(Debug, Clone)]
pub struct Machine {
pub id: uuid::Uuid,
pub desc: MachineDescription,
inner: Arc<Mutex<Inner>>,
}
impl Machine {
pub fn new(inner: Inner, desc: MachineDescription, ) -> Self {
Self {
id: uuid::Uuid::default(),
inner: Arc::new(Mutex::new(inner)),
desc,
}
}
pub fn construct
( id: MachineIdentifier
, desc: MachineDescription
, state: MachineState
) -> Machine
{
Self::new(Inner::new(id, state), desc)
}
fn match_perm(&self, status: &Status) -> Option<&PermissionBuf> {
let p = self.desc.privs;
match status {
// If you were allowed to use it you're allowed to give it back
Status::Free
| Status::ToCheck(_)
=> None,
Status::Blocked(_)
| Status::Disabled
| Status::Reserved(_)
=> Some(&p.manage),
Status::InUse(_) => Some(&p.write),
}
}
pub fn request_state_change(&self, new_state: MachineState, access: AccessControl, user: &User)
-> BoxFuture<'static, Result<()>>
{
let this = self.clone();
let perm = self.match_perm(&new_state.state);
let grant = perm.map(|p| access.check(&user.data, p).unwrap_or(false));
let uid = user.id.clone();
// is it a return
let is_ret = new_state.state == Status::Free;
// is it a (normal) write /the user is allowed to do/?
let is_wri = new_state.state == Status::InUse(Some(uid))
&& access.check(&user.data, self.desc.privs.write).unwrap_or(false);
let f = async move {
let mut guard = this.inner.lock().await;
// either e.g. InUse(<myself>) => Free or I'm allowed to overwrite
if (is_ret && guard.is_self(uid))
|| (is_wri && guard.is_free())
|| grant.unwrap_or(false)
{
guard.do_state_change(new_state);
}
return Ok(())
};
Box::pin(f)
}
pub fn do_state_change(&self, new_state: MachineState)
-> BoxFuture<'static, Result<()>>
{
let this = self.clone();
let f = async move {
let mut guard = this.inner.lock().await;
guard.do_state_change(new_state);
return Ok(())
};
Box::pin(f)
}
pub async fn get_status(&self) -> Status {
let guard = self.inner.lock().await;
guard.state.get_cloned().state
}
pub fn signal(&self) -> impl Signal<Item=MachineState> {
let guard = self.inner.try_lock().unwrap();
guard.signal()
}
pub fn get_inner(&self) -> Arc<Mutex<Inner>> {
self.inner.clone()
}
}
impl Deref for Machine {
type Target = Mutex<Inner>;
fn deref(&self) -> &Self::Target {
&self.inner
}
}
#[derive(Debug)]
/// Internal machine representation
///
/// A machine connects an event from a sensor to an actor activating/deactivating a real-world
/// machine, checking that the user who wants the machine (de)activated has the required
/// permissions.
///
/// Machines have a rather complex state machine since they have to be eventually consistent and
/// can fail at any point in time (e.g. because power cuts out suddenly, a different task on this
/// thread panics, some loaded code produces a segfault, ...)
pub struct Inner {
/// Globally unique machine readable identifier
pub id: MachineIdentifier,
/// The state of the machine as bffh thinks the machine *should* be in.
///
/// This is a Signal generator. Subscribers to this signal will be notified of changes. In the
/// case of an actor it should then make sure that the real world matches up with the set state
state: Mutable<MachineState>,
reset: Option<MachineState>,
}
impl Inner {
pub fn new ( id: MachineIdentifier
, state: MachineState
) -> Inner
{
Inner {
id,
state: Mutable::new(state),
reset: None,
}
}
/// Generate a signal from the internal state.
///
/// A signal is a lossy stream of state changes. Lossy in that if changes happen in quick
/// succession intermediary values may be lost. But this isn't really relevant in this case
/// since the only relevant state is the latest one.
pub fn signal(&self) -> impl Signal<Item=MachineState> {
// dedupe ensures that if state is changed but only changes to the value it had beforehand
// (could for example happen if the machine changes current user but stays activated) no
// update is sent.
Box::pin(self.state.signal_cloned().dedupe_cloned())
}
pub fn do_state_change(&mut self, new_state: MachineState) {
let old_state = self.state.replace(new_state);
self.reset.replace(old_state);
}
pub fn read_state(&self) -> ReadOnlyMutable<MachineState> {
self.state.read_only()
}
pub fn get_signal(&self) -> impl Signal {
self.state.signal_cloned()
}
pub fn reset_state(&mut self) {
if let Some(state) = self.reset.take() {
self.state.replace(state);
}
}
pub fn is_self(&mut self, uid: UserId) -> bool {
match self.read_state().get_cloned().state {
Status::InUse(u) if u == uid => true,
_ => false,
}
}
pub fn is_free(&mut self) -> bool {
match self.read_state().get_cloned().state {
Status::Free => true,
_ => false,
}
}
}
//pub type ReturnToken = futures::channel::oneshot::Sender<()>;
pub struct ReturnToken {
f: Option<BoxFuture<'static, ()>>,
}
impl ReturnToken {
pub fn new(inner: Arc<Mutex<Inner>>) -> Self {
let f = async move {
let mut guard = inner.lock().await;
guard.reset_state();
};
Self { f: Some(Box::pin(f)) }
}
}
impl Future for ReturnToken {
type Output = (); // FIXME: This should probably be a Result<(), Error>
fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
let mut this = &mut *self;
match this.f.as_mut().map(|f| Future::poll(Pin::new(f), cx)) {
None => Poll::Ready(()), // TODO: Is it saner to return Pending here? This can only happen after the future completed
Some(Poll::Pending) => Poll::Pending,
Some(Poll::Ready(())) => {
let _ = this.f.take(); // Remove the future to not poll after completion
Poll::Ready(())
}
}
}
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
/// A description of a machine
///
/// This is the struct that a machine is serialized to/from.
/// Combining this with the actual state of the system will return a machine
pub struct MachineDescription {
/// The name of the machine. Doesn't need to be unique but is what humans will be presented.
pub name: String,
/// An optional description of the Machine.
pub description: Option<String>,
/// The permission required
#[serde(flatten)]
pub privs: PrivilegesBuf,
}
impl MachineDescription {
pub fn load_file<P: AsRef<Path>>(path: P) -> Result<HashMap<MachineIdentifier, MachineDescription>> {
let content = fs::read(path)?;
Ok(toml::from_slice(&content[..])?)
}
}
pub fn load(config: &crate::config::Config)
-> Result<MachineMap>
{
let mut map = config.machines.clone();
let it = map.drain()
.map(|(k,v)| {
// TODO: Read state from the state db
(v.name.clone(), Machine::construct(k, v, MachineState::new()))
});
Ok(HashMap::from_iter(it))
}
#[cfg(test_DISABLED)]
mod tests {
use super::*;
use std::iter::FromIterator;
use crate::db::access::{PermissionBuf, PrivilegesBuf};
#[test]
fn load_examples_descriptions_test() {
let mut machines = MachineDescription::load_file("examples/machines.toml")
.expect("Couldn't load the example machine defs. Does `examples/machines.toml` exist?");
let expected =
vec![
(Uuid::parse_str("e5408099-d3e5-440b-a92b-3aabf7683d6b").unwrap(),
MachineDescription {
name: "Somemachine".to_string(),
description: None,
privs: PrivilegesBuf {
disclose: PermissionBuf::from_string("lab.some.disclose".to_string()),
read: PermissionBuf::from_string("lab.some.read".to_string()),
write: PermissionBuf::from_string("lab.some.write".to_string()),
manage: PermissionBuf::from_string("lab.some.admin".to_string()),
},
}),
(Uuid::parse_str("eaabebae-34d1-4a3a-912a-967b495d3d6e").unwrap(),
MachineDescription {
name: "Testmachine".to_string(),
description: Some("An optional description".to_string()),
privs: PrivilegesBuf {
disclose: PermissionBuf::from_string("lab.test.read".to_string()),
read: PermissionBuf::from_string("lab.test.read".to_string()),
write: PermissionBuf::from_string("lab.test.write".to_string()),
manage: PermissionBuf::from_string("lab.test.admin".to_string()),
},
}),
];
for (id, machine) in expected.into_iter() {
assert_eq!(machines.remove(&id).unwrap(), machine);
}
assert!(machines.is_empty());
}
}

View File

@ -1,15 +0,0 @@
//! Indpendent Communication modules
//!
//! This is where dynamic modules are implemented later on using libloading / abi_stable_crates et
//! al.
//! Additionally, FFI modules to other languages (Python/Lua/...) make the most sense in here as
//! well.
mod shelly;
pub use shelly::Shelly;
mod process;
pub use process::Process;
mod batch;
pub use batch::Batch;

View File

@ -1,171 +0,0 @@
use std::io::{Read, Write};
use std::pin::Pin;
use std::cell::RefCell;
use std::collections::HashMap;
use std::process::Stdio;
use smol::process::{Command, Child};
use smol::io::{AsyncWrite, AsyncWriteExt, AsyncReadExt};
use futures::future::{Future, FutureExt};
use crate::actor::Actuator;
use crate::initiator::Sensor;
use crate::db::machine::{MachineState, Status};
use crate::db::user::{User, Internal as UserDB};
use futures::future::BoxFuture;
use slog::Logger;
use serde::{Serialize, Deserialize};
pub struct Batch {
log: Logger,
userdb: UserDB,
name: String,
cmd: String,
args: Vec<String>,
kill: bool,
child: Child,
stdout: Pin<Box<dyn AsyncWrite>>,
}
impl Batch {
pub fn new(log: Logger, name: String, params: &HashMap<String, String>, userdb: UserDB)
-> Option<Self>
{
let cmd = params.get("cmd").map(|s| s.to_string())?;
let args = params.get("args").map(|argv|
argv.split_whitespace()
.map(|s| s.to_string())
.collect())
.unwrap_or_else(Vec::new);
let kill = params
.get("kill_on_exit")
.and_then(|kill|
kill.parse()
.or_else(|_| {
warn!(log, "Can't parse `kill_on_exit` for {} set as {} as boolean. \
Must be either \"True\" or \"False\".", &name, &s);
Ok(false)
})
.ok())
.unwrap_or(false);
info!(log, "Starting {} ({})…", &name, &cmd);
let mut child = Self::start(&name, &cmd, &args)
.map_err(|err| error!(log, "Failed to spawn {} ({}): {}", &name, &cmd, err))
.ok()?;
let stdout = Self::get_stdout(&mut child);
Ok(Self { log, userdb, name, cmd, args, kill, child, stdout })
}
fn start(name: &String, cmd: &String, args: &Vec<String>) -> std::io::Result<Child> {
let mut command = Command::new(cmd);
command
.stdin(Stdio::piped())
.stdout(Stdio::null())
.stderr(Stdio::piped())
.args(args.iter())
.arg(name);
command
.spawn()
}
fn get_stdout(child: &mut Child) -> Pin<Box<dyn AsyncWrite>> {
let stdout = child.stdout.expect("Actor child has closed stdout");
stdout.boxed_writer()
}
fn maybe_restart(&mut self, f: &mut Option<BoxFuture<'static, ()>>) -> bool {
let stat = self.child.try_status();
if stat.is_err() {
error!(self.log, "Can't check process for {} ({}) [{}]: {}",
&self.name, &self.cmd, self.child.id(), stat.unwrap_err());
return false;
}
if let Some(status) = stat.unwrap() {
warn!(self.log, "Process for {} ({}) exited with code {}",
&self.name, &self.cmd, status);
let errlog = self.log.new(o!("pid" => self.child.id()));
// If we have any stderr try to log it
if let Some(stderr) = self.child.stderr.take() {
*f = Some(Box::pin(async move {
let mut out = String::new();
match stderr.read_to_string(&mut out).await {
Err(e) => warn!(errlog, "Failed to read child stderr: {}", e),
Ok(n) => if n != 0 {
let errstr = String::from_utf8_lossy(out);
for line in errstr.lines() {
warn!(errlog, "{}", line);
}
}
}
}));
}
info!(self.log, "Attempting to re-start {}", &self.name);
let mut child = Self::start(&self.name, &self.cmd, &self.args)
.map_err(|err| error!(self.log, "Failed to spawn {} ({}): {}", &self.name, &self.cmd, err))
.ok();
// Nothing else to do with the currect architecture. In reality we should fail here
// because we *didn't apply* the change.
if child.is_none() {
false
}
self.child = child.unwrap();
}
true
}
}
#[derive(Debug, Clone, Serialize, Deserialize)]
struct StateChangeObj {
name: String,
state: MachineState,
}
impl StateChangeObj {
pub fn new(name: String, state: MachineState) -> Self {
Self { name, state }
}
}
impl Actuator for Batch {
fn apply(&mut self, state: MachineState) -> BoxFuture<'static, ()> {
debug!(self.log, "Giving {} ({}) new state: {:?}", &self.name, &self.cmd, &state);
let mut f = None;
if !self.maybe_restart(&mut f) {
return Box::pin(futures::future::ready(()));
}
let mut json = String::new();
// Per default compact
let ser = serde_json::ser::Serializer::new(&mut json);
let change = StateChangeObj::new(self.name.clone(), state);
change.serialize(&mut ser);
// Verify that this "line" does not contain any whitespace.
debug_assert!(!json.chars().any(|c| c == "\n"));
let stdin = self.child.stdin.take().expect("Batch actor child has closed stdin?!");
let errlog = self.log.new(o!("pid" => self.child.id()));
let g = async move {
if let Some(f) = f {
f.await;
}
if let Err(e) = stdin.write(json).await {
error!(errlog, "Failed to send statechange to child: {}", e);
}
};
Box::pin(g);
}
}

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@ -1,92 +0,0 @@
use std::collections::HashMap;
use std::process::Stdio;
use smol::process::Command;
use futures::future::FutureExt;
use crate::actor::Actuator;
use crate::db::machine::{MachineState, Status};
use futures::future::BoxFuture;
use slog::Logger;
pub struct Process {
log: Logger,
name: String,
cmd: String,
args: Vec<String>,
}
impl Process {
pub fn new(log: Logger, name: String, params: &HashMap<String, String>) -> Option<Self> {
let cmd = params.get("cmd").map(|s| s.to_string())?;
let args = params.get("args").map(|argv|
argv.split_whitespace()
.map(|s| s.to_string())
.collect())
.unwrap_or_else(Vec::new);
Some(Self { log, name, cmd, args })
}
pub fn into_boxed_actuator(self) -> Box<dyn Actuator + Sync + Send> {
Box::new(self)
}
}
impl Actuator for Process {
fn apply(&mut self, state: MachineState) -> BoxFuture<'static, ()> {
debug!(self.log, "Running {} ({}) for {:?}", &self.name, &self.cmd, &state);
let mut command = Command::new(&self.cmd);
command
.stdin(Stdio::null())
.args(self.args.iter())
.arg(&self.name);
let fstate = state.state.clone();
match state.state {
Status::Free => {
command.arg("free");
}
Status::InUse(by) => {
command.arg("inuse");
by.map(|user| command.arg(format!("{}", user)));
}
Status::ToCheck(by) => {
command.arg("tocheck")
.arg(format!("{}", by));
}
Status::Blocked(by) => {
command.arg("blocked")
.arg(format!("{}", by));
}
Status::Disabled => { command.arg("disabled"); },
Status::Reserved(by) => {
command.arg("reserved")
.arg(format!("{}", by));
}
}
let flog = self.log.new(o!());
let name = self.name.clone();
Box::pin(command.output().map(move |res| match res {
Ok(retv) if retv.status.success() => {
trace!(flog, "Actor was successful");
let outstr = String::from_utf8_lossy(&retv.stdout);
for line in outstr.lines() {
debug!(flog, "{}", line);
}
}
Ok(retv) => {
warn!(flog, "Actor {} returned nonzero status {} for State={:?}", name, retv.status, fstate);
if !retv.stderr.is_empty() {
let errstr = String::from_utf8_lossy(&retv.stderr);
for line in errstr.lines() {
warn!(flog, "{}", line);
}
}
}
Err(err) => { warn!(flog, "Actor {} failed to run cmd: {}", name, err); }
}))
}
}

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@ -1,52 +0,0 @@
use slog::Logger;
use crate::db::machine::Status;
use futures::prelude::*;
use futures::future::BoxFuture;
use crate::actor::Actuator;
use crate::db::machine::MachineState;
use paho_mqtt as mqtt;
/// An actuator for a Shellie connected listening on one MQTT broker
///
/// This actuator will toggle the shellie with the given `name`.
/// If you need to toggle shellies on multiple brokers you need multiple instanced of this
/// actuator with different clients.
pub struct Shelly {
log: Logger,
name: String,
client: mqtt::AsyncClient,
}
impl Shelly {
pub fn new(log: Logger, name: String, client: mqtt::AsyncClient) -> Self {
debug!(log, "Starting shelly module for {}", &name);
Shelly { log, name, client, }
}
/// Set the name to a new one. This changes the shelly that will be activated
pub fn set_name(&mut self, new_name: String) {
let log = self.log.new(o!("shelly_name" => new_name.clone()));
self.name = new_name;
self.log = log;
}
}
impl Actuator for Shelly {
fn apply(&mut self, state: MachineState) -> BoxFuture<'static, ()> {
info!(self.log, "Machine Status changed: {:?}", state);
let topic = format!("shellies/{}/relay/0/command", self.name);
let pl = match state.state {
Status::InUse(_) => "on",
_ => "off",
};
let msg = mqtt::Message::new(topic, pl, 0);
let f = self.client.publish(msg).map(|_| ());
return Box::pin(f);
}
}

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@ -1,176 +0,0 @@
use slog::Logger;
use crate::config;
use crate::config::Config;
use crate::error::Error;
use crate::connection;
use smol::net::TcpListener;
use smol::net::unix::UnixStream;
use smol::LocalExecutor;
use smol::Executor;
use futures::prelude::*;
use std::io;
use std::sync::Arc;
use std::os::unix::io::AsRawFd;
use signal_hook::low_level::pipe as sigpipe;
use crate::db::Databases;
use crate::network::Network;
/// Handle all API connections and run the RPC tasks spawned from that on the local thread.
pub fn serve_api_connections(log: Arc<Logger>, config: Config, db: Databases, nw: Network, ex: Executor)
-> Result<(), Error>
{
let signal = Box::pin(async {
let (tx, mut rx) = UnixStream::pair()?;
// Initialize signal handler.
// We currently only care about Ctrl-C so SIGINT it is.
// TODO: Make this do SIGHUP and a few others too. (By cloning the tx end of the pipe)
sigpipe::register(signal_hook::consts::SIGINT, tx.as_raw_fd())?;
// When a signal is received this future can complete and read a byte from the underlying
// socket — the actual data is discarded but the act of being able to receive data tells us
// that we received a SIGINT.
// FIXME: What errors are possible and how to handle them properly?
rx.read_exact(&mut [0u8]).await?;
io::Result::Ok(LoopResult::Stop)
});
// Bind to each address in config.listens.
// This is a Stream over Futures so it will do absolutely nothing unless polled to completion
let listeners_s: futures::stream::Collect<_, Vec<TcpListener>>
= stream::iter((&config).listens.iter())
.map(|l| {
let addr = l.address.clone();
let port = l.port.unwrap_or(config::DEFAULT_PORT);
info!(&log, "Binding to {} port {}.", l.address.as_str(), &port);
TcpListener::bind((l.address.as_str(), port))
// If the bind errors, include the address so we can log it
// Since this closure is lazy we need to have a cloned addr
.map_err(move |e| { (addr, port, e) })
})
// Filter out the sockets we couldn't open and log those
.filter_map(|f| async {
match f.await {
Ok(l) => Some(l),
Err((addr, port, e)) => {
error!(&log, "Could not setup socket on {} port {}: {}", addr, port, e);
None
}
}
}).collect();
let local_ex = LocalExecutor::new();
let network = Arc::new(nw);
let inner_log = log.clone();
let loop_log = log.clone();
let control_fut = async {
// Generate a stream of TcpStreams appearing on any of the interfaces we listen to
let listeners = listeners_s.await;
let incoming = stream::select_all(listeners.iter().map(|l| l.incoming()));
// For each incoming connection start a new task to handle it
let handle_sockets = incoming.map(|socket| {
// incoming.next() returns an error when the underlying `accept` call yielded an error
// In POSIX those are protocol errors we can't really handle, so we just log the error
// and the move on
match socket {
Ok(socket) => {
// If we have it available add the peer's address to all log messages
let log =
if let Ok(addr) = socket.peer_addr() {
inner_log.new(o!("address" => addr))
} else {
inner_log.new(o!())
};
let db = db.clone();
let network = network.clone();
let tlog = inner_log.new(o!());
std::thread::spawn(move || {
let local_ex = LocalExecutor::new();
let mut handler = connection::ConnectionHandler::new(tlog, db, network);
// We handle the error using map_err
let f = handler.handle(socket)
.map_err(move |e| {
error!(log, "Error occured during protocol handling: {}", e);
})
// Void any and all results since pool.spawn allows no return value.
.map(|_| ());
// Spawn the connection context onto the local executor since it isn't Send
// Also `detach` it so the task isn't canceled as soon as it's dropped.
// TODO: Store all those tasks to have a easier way of managing them?
smol::block_on(f);
});
},
Err(e) => {
error!(inner_log, "Socket `accept` error: {}", e);
}
}
// Unless we are overloaded we just want to keep going.
return LoopResult::Continue;
});
info!(&log, "Started");
// Check each signal as it arrives
let handle_signals = signal.map(|r| { r.unwrap() }).into_stream();
let mut combined = stream::select(handle_signals, handle_sockets);
// This is the basic main loop that drives execution
loop {
match combined.next().await {
// When the result says to continue, do exactly that
Some(LoopResult::Continue) => {}
Some(LoopResult::Overloaded) => {
// In case over server overload we should install a replacement handler that
// would instead just return `overloaded` for all connections until the
// situation is remedied.
//
// For now, just log the overload and keep going.
error!(loop_log, "Server overloaded");
}
// When the result says to stop the server, do exactly that.
// Also catches a `None` from the stream; None should never be returned because it
// would mean all sockets were closed and we can not receive any further signals.
// Still, in that case shut down cleanly anyway, the only reason this could happen
// are some heavy bugs in the runtime
Some(LoopResult::Stop) | None => {
warn!(loop_log, "Stopping server");
break;
}
}
}
};
smol::block_on(smol::future::race(control_fut, ex.run(smol::future::pending())));
// TODO: Run actual shut down code here
info!(log, "Shutting down...");
// Returning () is an implicit success so this will properly set the exit code as well
Ok(())
}
/// The result of one iteration of the core loop
pub enum LoopResult {
/// Everything was fine, keep going
Continue,
/// Something happened that means we should shut down
Stop,
/// The Server is currently overloaded
Overloaded,
}

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@ -1,9 +0,0 @@
use uuid::Uuid;
#[derive(Debug, Clone)]
pub struct Space {
pub id: Uuid,
pub name: String,
pub info: String,
}