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it all works!

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This commit is contained in:
Jacob Lifshay 2024-04-08 23:38:50 -07:00
parent d6ebd3a4a6
commit 40e8445848
Signed by: programmerjake
SSH key fingerprint: SHA256:B1iRVvUJkvd7upMIiMqn6OyxvD2SgJkAH3ZnUOj6z+c
13 changed files with 471 additions and 47 deletions
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78
Cargo.lock generated
View file

@ -819,6 +819,17 @@ dependencies = [
"syn 2.0.58",
]
[[package]]
name = "diesel_migrations"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6036b3f0120c5961381b570ee20a02432d7e2d27ea60de9578799cf9156914ac"
dependencies = [
"diesel",
"migrations_internals",
"migrations_macros",
]
[[package]]
name = "diesel_table_macro_syntax"
version = "0.1.0"
@ -867,6 +878,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
dependencies = [
"pkcs8",
"serde",
"signature",
]
@ -878,6 +890,7 @@ checksum = "4a3daa8e81a3963a60642bcc1f90a670680bd4a77535faa384e9d1c79d620871"
dependencies = [
"curve25519-dalek",
"ed25519",
"rand_core",
"serde",
"sha2",
"subtle",
@ -1548,6 +1561,27 @@ version = "2.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
[[package]]
name = "migrations_internals"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0f23f71580015254b020e856feac3df5878c2c7a8812297edd6c0a485ac9dada"
dependencies = [
"serde",
"toml 0.7.8",
]
[[package]]
name = "migrations_macros"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cce3325ac70e67bbab5bd837a31cae01f1a6db64e0e744a33cb03a543469ef08"
dependencies = [
"migrations_internals",
"proc-macro2",
"quote",
]
[[package]]
name = "mime"
version = "0.3.17"
@ -2482,6 +2516,8 @@ dependencies = [
"clio",
"color-eyre",
"diesel",
"diesel_migrations",
"ed25519-dalek",
"env_logger",
"eyre",
"futures",
@ -2492,9 +2528,11 @@ dependencies = [
"reqwest",
"serde",
"serde_json",
"serde_urlencoded",
"serde_with",
"tinytemplate",
"tokio",
"toml",
"toml 0.8.12",
]
[[package]]
@ -2714,6 +2752,18 @@ dependencies = [
"tracing",
]
[[package]]
name = "toml"
version = "0.7.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dd79e69d3b627db300ff956027cc6c3798cef26d22526befdfcd12feeb6d2257"
dependencies = [
"serde",
"serde_spanned",
"toml_datetime",
"toml_edit 0.19.15",
]
[[package]]
name = "toml"
version = "0.8.12"
@ -2724,7 +2774,7 @@ dependencies = [
"serde",
"serde_spanned",
"toml_datetime",
"toml_edit",
"toml_edit 0.22.9",
]
[[package]]
@ -2736,6 +2786,19 @@ dependencies = [
"serde",
]
[[package]]
name = "toml_edit"
version = "0.19.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1b5bb770da30e5cbfde35a2d7b9b8a2c4b8ef89548a7a6aeab5c9a576e3e7421"
dependencies = [
"indexmap 2.2.6",
"serde",
"serde_spanned",
"toml_datetime",
"winnow 0.5.40",
]
[[package]]
name = "toml_edit"
version = "0.22.9"
@ -2746,7 +2809,7 @@ dependencies = [
"serde",
"serde_spanned",
"toml_datetime",
"winnow",
"winnow 0.6.5",
]
[[package]]
@ -3224,6 +3287,15 @@ version = "0.52.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32b752e52a2da0ddfbdbcc6fceadfeede4c939ed16d13e648833a61dfb611ed8"
[[package]]
name = "winnow"
version = "0.5.40"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876"
dependencies = [
"memchr",
]
[[package]]
name = "winnow"
version = "0.6.5"

4
Cargo.toml
View file

@ -13,6 +13,8 @@ clap = { version = "4.5.4", features = ["derive"] }
clio = { version = "0.3.5", features = ["clap-parse"] }
color-eyre = "0.6.3"
diesel = { version = "2.1.5", features = ["sqlite", "chrono"] }
diesel_migrations = { version = "2.1.0", features = ["sqlite"] }
ed25519-dalek = { version = "2.1.1", features = ["rand_core", "serde"] }
env_logger = "0.11.3"
eyre = "0.6.12"
futures = "0.3.30"
@ -23,6 +25,8 @@ openidconnect = "3.5.0"
reqwest = "0.11.27"
serde = { version = "1.0.197", features = ["derive"] }
serde_json = "1.0.115"
serde_urlencoded = "0.7.1"
serde_with = { version = "3.7.0", features = ["base64"] }
tinytemplate = "1.2.1"
tokio = { version = "1.37.0", features = ["macros", "rt-multi-thread"] }
toml = { version = "0.8.12", features = ["preserve_order"] }

3
build.rs Normal file
View file

@ -0,0 +1,3 @@
fn main() {
println!("cargo:rerun-if-changed=migrations");
}

1
config.toml.sample
View file

@ -1,4 +1,5 @@
sqlite_db = "subscribe-list.db"
server_base_url = "https://my-site/"
[oidc.google]
pretty_name = "Google"

1
migrations/2024-04-09-022737_add-email-unsubscribe-url-key/down.sql Normal file
View file

@ -0,0 +1 @@
DROP TABLE "keys";

4
migrations/2024-04-09-022737_add-email-unsubscribe-url-key/up.sql Normal file
View file

@ -0,0 +1,4 @@
CREATE TABLE "keys" (
"id" INTEGER PRIMARY KEY CHECK ("id" = 0) NOT NULL DEFAULT 0,
"email-unsubscribe-url" BLOB NOT NULL
) WITHOUT ROWID;

60
src/app.rs
View file

@ -1,4 +1,10 @@
use crate::{client::async_http_client, config::Config, db::DbThread, models::Account};
use crate::{
client::async_http_client,
config::Config,
db::DbThread,
keys::Signed,
models::{Account, Keys},
};
use actix_session::Session;
use actix_web::{
get,
@ -11,6 +17,7 @@ use openidconnect::{
core::{CoreAuthenticationFlow, CoreUserInfoClaims},
AuthorizationCode, CsrfToken, EndUserEmail, Nonce, OAuth2TokenResponse, TokenResponse,
};
use reqwest::Url;
use serde::{Deserialize, Serialize};
use std::marker::PhantomData;
use tinytemplate::TinyTemplate;
@ -95,6 +102,14 @@ As an anti-spam measure, you need to register using a 3rd-party account:
pub struct SubscriptionLoggedInTemplate {
pub email: EndUserEmail,
}
#[text = r#"<head><title>Subscription</title></head>
<body>
<p>Bad Signature.</p>
<hr/>
<a href="/subscription">Register or Sign In</a>
</body>"#]
#[derive(Debug, Serialize)]
pub struct SubscriptionBadSignature {}
}
pub fn make_templates() -> TinyTemplate<'static> {
@ -273,6 +288,46 @@ pub async fn login(
resp
}
#[derive(Serialize, Deserialize)]
#[serde(transparent)]
pub struct EmailUnsubscribeUrlQueryParams {
pub signed_email: Signed<EndUserEmail, ed25519_dalek::Signature>,
}
impl EmailUnsubscribeUrlQueryParams {
pub fn new(email: &EndUserEmail, keys: &Keys) -> Self {
Self {
signed_email: Signed::sign(email, keys.email_unsubscribe_url.secret()).unwrap(),
}
}
pub fn make_url(&self, config: &Config) -> Url {
let mut retval = config.server_base_url.join("/subscription/email").unwrap();
retval.set_query(Some(&serde_urlencoded::to_string(&self).unwrap()));
retval
}
}
#[get("/subscription/email")]
pub async fn email_unsubscribe(
keys: web::Data<Keys>,
session: Session,
query: web::Query<EmailUnsubscribeUrlQueryParams>,
) -> impl Responder {
let Ok(Ok(email)) = query
.signed_email
.verify(keys.email_unsubscribe_url.secret())
else {
return HttpResponse::Forbidden()
.content_type(ContentType::html())
.body(SubscriptionBadSignature {}.render().unwrap());
};
SessionState { email }.set(&session);
let mut resp = HttpResponse::SeeOther().body("");
resp.headers_mut()
.insert(LOCATION, "/subscription".parse().unwrap());
resp
}
#[get("/subscription/logout")]
pub async fn logout(session: Session) -> impl Responder {
session.purge();
@ -341,7 +396,8 @@ pub fn all_services(cfg: &mut ServiceConfig) {
.service(login)
.service(callback)
.service(logout)
.service(unsubscribe);
.service(unsubscribe)
.service(email_unsubscribe);
}
#[cfg(test)]

41
src/cli.rs
View file

@ -1,25 +1,52 @@
use crate::config;
use clap::{ArgAction, Args, Parser};
use clap::{ArgAction, Args, Parser, Subcommand};
use eyre::ensure;
use futures::try_join;
use futures::future::try_join_all;
use listenfd::ListenFd;
use std::{net::TcpListener, os::unix::net::UnixListener, path::PathBuf};
use std::{future::Future, net::TcpListener, os::unix::net::UnixListener, path::PathBuf, pin::Pin};
#[derive(Parser, Debug)]
pub struct CLI {
#[arg(long, value_parser, value_name = "path/to/config.toml")]
#[arg(long, value_name = "path/to/config.toml")]
pub config: config::Config,
#[command(flatten)]
pub listen: Listen,
#[command(subcommand)]
pub subcommand: CLISubcommand,
}
impl CLI {
pub async fn resolve(&mut self, listenfd: &mut ListenFd) -> eyre::Result<()> {
try_join!(self.config.resolve(), self.listen.resolve(listenfd))?;
let mut futures: Vec<Pin<Box<dyn Future<Output = eyre::Result<()>> + Send>>> = vec![];
let resolve_provider_metadata;
match &mut self.subcommand {
CLISubcommand::Serve { listen } => {
resolve_provider_metadata = true;
futures.push(Box::pin(listen.resolve(listenfd)));
}
CLISubcommand::GenerateUnsubscribeUrls { emails: _ } => {
resolve_provider_metadata = false;
}
}
futures.push(Box::pin(self.config.resolve(resolve_provider_metadata)));
try_join_all(futures).await?;
if resolve_provider_metadata {
log::info!("retrieved config from auth servers");
}
Ok(())
}
}
#[derive(Subcommand, Debug)]
pub enum CLISubcommand {
Serve {
#[command(flatten)]
listen: Listen,
},
GenerateUnsubscribeUrls {
emails: Vec<String>,
},
}
#[derive(Args, Debug)]
#[group(required = true)]
pub struct Listen {

70
src/config.rs
View file

@ -1,13 +1,14 @@
use crate::client::async_http_client;
use clap::builder::{TryMapValueParser, TypedValueParser, ValueParserFactory};
use clio::CachedInput;
use eyre::Context;
use eyre::{ensure, Context, OptionExt};
use futures::future::try_join_all;
use indexmap::IndexMap;
use openidconnect::{
core::{CoreClient, CoreProviderMetadata},
ClientId, ClientSecret, IssuerUrl, RedirectUrl, Scope,
};
use reqwest::Url;
use serde::{Deserialize, Serialize};
use std::num::NonZeroU16;
@ -20,17 +21,18 @@ pub struct Config {
pub sqlite_db: String,
#[serde(default = "default_db_thread_channel_capacity")]
pub db_thread_channel_capacity: NonZeroU16,
pub server_base_url: Url,
pub oidc: IndexMap<String, OIDCProvider>,
}
impl ValueParserFactory for Config {
type Parser = TryMapValueParser<
<CachedInput as ValueParserFactory>::Parser,
fn(CachedInput) -> eyre::Result<Config>,
fn(CachedInput) -> Result<Config, String>,
>;
fn value_parser() -> Self::Parser {
CachedInput::value_parser().try_map(Config::load)
CachedInput::value_parser().try_map(|v| Config::load(&v).map_err(|e| format!("{e:#}")))
}
}
@ -42,13 +44,28 @@ impl Config {
toml::from_str(input).wrap_err_with(|| path.to_string())
}
pub fn load(input: CachedInput) -> eyre::Result<Config> {
pub fn load(input: &CachedInput) -> eyre::Result<Config> {
log::debug!("loading config from: {}", input.path());
let s = std::str::from_utf8(input.get_data()).wrap_err_with(|| input.path().to_string())?;
Self::load_str(s, input.path())
}
pub async fn resolve(&mut self) -> eyre::Result<()> {
try_join_all(self.oidc.iter_mut().map(|(_, provider)| provider.resolve())).await?;
pub async fn resolve(&mut self, resolve_provider_metadata: bool) -> eyre::Result<()> {
let expected_server_base_url: Url = self
.server_base_url
.origin()
.ascii_serialization()
.parse()
.ok()
.ok_or_eyre("invalid server_base_url")?;
ensure!(
self.server_base_url == expected_server_base_url,
"invalid server_base_url -- expected {expected_server_base_url}"
);
try_join_all(self.oidc.iter_mut().map(|(name, provider)| {
provider.resolve(name, resolve_provider_metadata, &self.server_base_url)
}))
.await?;
Ok(())
}
}
@ -75,21 +92,34 @@ impl OIDCProvider {
pub fn state(&self) -> &OIDCProviderState {
self.state.as_ref().expect("resolve called by main")
}
pub async fn resolve(&mut self) -> eyre::Result<()> {
let provider_metadata =
CoreProviderMetadata::discover_async(self.issuer_url.clone(), async_http_client)
.await?;
let client = CoreClient::from_provider_metadata(
provider_metadata.clone(),
self.client_id.clone(),
Some(self.secret.clone()),
pub async fn resolve(
&mut self,
name: &str,
resolve_provider_metadata: bool,
server_base_url: &Url,
) -> eyre::Result<()> {
let expected_redirect_url =
server_base_url.join(&format!("/subscription/callback/{name}"))?;
ensure!(
self.redirect_url.as_str() == expected_redirect_url.as_str(),
"oidc.{name:?}.redirect_url should be {expected_redirect_url}"
);
let client = client.disable_openid_scope();
let client = client.set_redirect_uri(self.redirect_url.clone());
self.state = Some(OIDCProviderState {
client,
provider_metadata,
});
if resolve_provider_metadata {
let provider_metadata =
CoreProviderMetadata::discover_async(self.issuer_url.clone(), async_http_client)
.await?;
let client = CoreClient::from_provider_metadata(
provider_metadata.clone(),
self.client_id.clone(),
Some(self.secret.clone()),
);
let client = client.disable_openid_scope();
let client = client.set_redirect_uri(self.redirect_url.clone());
self.state = Some(OIDCProviderState {
client,
provider_metadata,
});
}
Ok(())
}
}

139
src/keys.rs Normal file
View file

@ -0,0 +1,139 @@
use crate::models::{Keys, OnlyZero};
use core::fmt;
use diesel::{
expression::TypedExpressionType, sql_types::SqlType, Connection, RunQueryDsl, SqliteConnection,
};
use ed25519_dalek::{
ed25519::{signature::rand_core::OsRng, SignatureEncoding},
SignatureError, Signer, Verifier,
};
use serde::{de::DeserializeOwned, Deserialize, Serialize};
use serde_with::{
base64::{Base64, UrlSafe},
formats::Unpadded,
serde_as,
};
use std::marker::PhantomData;
#[derive(Copy, Clone)]
pub struct Key<T>(T);
impl<T> fmt::Debug for Key<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "Key([redacted])")
}
}
impl<T> Key<T> {
pub fn new(v: T) -> Self {
Self(v)
}
pub fn secret(&self) -> &T {
&self.0
}
}
impl<ST, DB: diesel::backend::Backend> diesel::Queryable<ST, DB> for Key<ed25519_dalek::SigningKey>
where
Vec<u8>: diesel::Queryable<ST, DB>,
{
type Row = <Vec<u8> as diesel::Queryable<ST, DB>>::Row;
fn build(row: Self::Row) -> diesel::deserialize::Result<Self> {
let v = <Vec<u8> as diesel::Queryable<ST, DB>>::build(row)?;
Ok(Key(ed25519_dalek::SigningKey::try_from(&*v)?))
}
}
impl<T: SqlType + TypedExpressionType> diesel::expression::AsExpression<T>
for Key<ed25519_dalek::SigningKey>
where
Vec<u8>: diesel::expression::AsExpression<T>,
{
type Expression = <Vec<u8> as diesel::expression::AsExpression<T>>::Expression;
fn as_expression(self) -> Self::Expression {
Vec::<u8>::from(self.0.to_bytes()).as_expression()
}
}
impl<'a, T: SqlType + TypedExpressionType> diesel::expression::AsExpression<T>
for &'a Key<ed25519_dalek::SigningKey>
where
&'a [u8]: diesel::expression::AsExpression<T>,
{
type Expression = <&'a [u8] as diesel::expression::AsExpression<T>>::Expression;
fn as_expression(self) -> Self::Expression {
self.0.as_bytes()[..].as_expression()
}
}
impl<'a, T: SqlType + TypedExpressionType> diesel::expression::AsExpression<T>
for &'a &'_ Key<ed25519_dalek::SigningKey>
where
&'a [u8]: diesel::expression::AsExpression<T>,
{
type Expression = <&'a [u8] as diesel::expression::AsExpression<T>>::Expression;
fn as_expression(self) -> Self::Expression {
self.0.as_bytes()[..].as_expression()
}
}
pub fn get_or_make_keys(db: &mut SqliteConnection) -> eyre::Result<Keys> {
db.transaction(|db| -> eyre::Result<Keys> {
let keys: Option<Keys> = crate::schema::keys::dsl::keys.load(db)?.get(0).cloned();
if let Some(keys) = keys {
return Ok(keys);
}
let keys = Keys {
id: OnlyZero::Zero,
email_unsubscribe_url: Key::new(ed25519_dalek::SigningKey::generate(&mut OsRng)),
};
diesel::insert_into(crate::schema::keys::dsl::keys)
.values(keys.clone())
.execute(db)?;
Ok(keys)
})
}
#[serde_as]
#[derive(Serialize, Deserialize)]
pub struct Signed<T, S: SignatureEncoding> {
#[serde(rename = "v")]
value: String,
#[serde(rename = "s", bound(deserialize = "S::Repr: TryFrom<Vec<u8>>"))]
#[serde_as(as = "Base64<UrlSafe, Unpadded>")]
signature: S::Repr,
#[serde(skip)]
_phantom: PhantomData<(fn() -> T, S)>,
}
impl<T: Serialize + DeserializeOwned, S: SignatureEncoding> Signed<T, S> {
pub fn sign<K>(value: &T, key: &K) -> Result<Self, serde_json::Error>
where
K: Signer<S>,
{
let value = serde_json::to_string(value)?;
let signature = key.sign(value.as_bytes()).to_bytes();
Ok(Self {
value,
signature,
_phantom: PhantomData,
})
}
pub fn verify<K>(&self, key: &K) -> eyre::Result<Result<T, SignatureError>>
where
K: Verifier<S>,
for<'a> eyre::Report: From<<S as TryFrom<&'a [u8]>>::Error>,
{
if let Err(e) = key.verify(
&self.value.as_bytes(),
&S::try_from(self.signature.as_ref())?,
) {
return Ok(Err(e));
}
Ok(Ok(serde_json::from_str(&self.value)?))
}
}

71
src/lib.rs
View file

@ -1,33 +1,38 @@
use crate::{
cli::{Listen, ListenFdSocket, ListenFdSockets},
app::EmailUnsubscribeUrlQueryParams,
cli::{CLISubcommand, Listen, ListenFdSocket, ListenFdSockets},
config::Config,
db::DbThread,
keys::get_or_make_keys,
models::Keys,
};
use actix_session::{storage::CookieSessionStore, SessionMiddleware};
use actix_web::{cookie::Key, web, App, HttpServer};
use clap::Parser;
use diesel::Connection;
use diesel_migrations::{embed_migrations, EmbeddedMigrations, MigrationHarness};
use eyre::eyre;
use listenfd::ListenFd;
use openidconnect::EndUserEmail;
pub const MIGRATIONS: EmbeddedMigrations = embed_migrations!();
mod app;
mod cli;
mod client;
mod config;
mod db;
mod keys;
mod models;
mod schema;
pub async fn main() -> eyre::Result<()> {
env_logger::init();
let mut listenfd = ListenFd::from_env();
color_eyre::install()?;
let mut args = cli::CLI::parse();
let db = web::Data::new(DbThread::new(
diesel::SqliteConnection::establish(&args.config.sqlite_db)?,
args.config.db_thread_channel_capacity.get().into(),
));
args.resolve(&mut listenfd).await?;
log::info!("retrieved config from auth servers");
let config = web::Data::new(args.config);
pub async fn run_server(
config: Config,
db: web::Data<DbThread>,
keys: web::Data<Keys>,
listen: Listen,
) -> eyre::Result<()> {
let config = web::Data::new(config);
let cookie_session_key = Key::generate();
let mut server = HttpServer::new(move || {
let cookie_session =
@ -38,13 +43,14 @@ pub async fn main() -> eyre::Result<()> {
.wrap(cookie_session)
.app_data(config.clone())
.app_data(db.clone())
.app_data(keys.clone())
.configure(app::all_services)
});
let Listen {
listen_tcp,
listen_unix,
listen_fd,
} = &mut args.listen;
} = listen;
for sock in listen_tcp.iter() {
server = server.bind_auto_h2c(sock)?;
}
@ -52,7 +58,7 @@ pub async fn main() -> eyre::Result<()> {
server = server.bind_uds(sock)?;
}
if let Some(ListenFdSockets(sockets)) = listen_fd {
for sock in sockets.drain(..) {
for sock in sockets.into_iter() {
server = match sock {
ListenFdSocket::Tcp(sock) => server.listen_auto_h2c(sock)?,
ListenFdSocket::Unix(sock) => server.listen_uds(sock)?,
@ -63,3 +69,38 @@ pub async fn main() -> eyre::Result<()> {
server.run().await?;
Ok(())
}
pub async fn generate_unsubscribe_urls(
config: Config,
keys: web::Data<Keys>,
emails: Vec<String>,
) -> eyre::Result<()> {
for email in emails {
let email = EndUserEmail::new(email);
let url = EmailUnsubscribeUrlQueryParams::new(&email, &keys).make_url(&config);
println!("{url}");
}
Ok(())
}
pub async fn main() -> eyre::Result<()> {
env_logger::init();
let mut listenfd = ListenFd::from_env();
color_eyre::install()?;
let mut cli = cli::CLI::parse();
let mut db = diesel::SqliteConnection::establish(&cli.config.sqlite_db)?;
db.run_pending_migrations(MIGRATIONS)
.map_err(|e| eyre!(e))?;
let keys = web::Data::new(get_or_make_keys(&mut db)?);
let db = web::Data::new(DbThread::new(
db,
cli.config.db_thread_channel_capacity.get().into(),
));
cli.resolve(&mut listenfd).await?;
match cli.subcommand {
CLISubcommand::Serve { listen } => run_server(cli.config, db, keys, listen).await,
CLISubcommand::GenerateUnsubscribeUrls { emails } => {
generate_unsubscribe_urls(cli.config, keys, emails).await
}
}
}

33
src/models.rs
View file

@ -1,5 +1,7 @@
use crate::keys::Key;
use chrono::NaiveDateTime;
use diesel::prelude::*;
use eyre::ensure;
#[derive(Queryable, Selectable, Insertable)]
#[diesel(table_name = crate::schema::accounts)]
@ -8,3 +10,34 @@ pub struct Account {
pub email: String,
pub date: NaiveDateTime,
}
#[derive(Copy, Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum OnlyZero {
#[default]
Zero = 0,
}
impl From<OnlyZero> for i32 {
fn from(_value: OnlyZero) -> Self {
0
}
}
impl TryFrom<i32> for OnlyZero {
type Error = eyre::Report;
fn try_from(value: i32) -> Result<Self, Self::Error> {
ensure!(value == 0, "tried to convert nonzero value into OnlyZero");
Ok(OnlyZero::Zero)
}
}
#[derive(Queryable, Selectable, Insertable, Clone)]
#[diesel(table_name = crate::schema::keys)]
#[diesel(check_for_backend(diesel::sqlite::Sqlite))]
pub struct Keys {
#[diesel(serialize_as = i32)]
#[diesel(deserialize_as = i32)]
pub id: OnlyZero,
pub email_unsubscribe_url: Key<ed25519_dalek::SigningKey>,
}

13
src/schema.rs
View file

@ -6,3 +6,16 @@ diesel::table! {
date -> Timestamp,
}
}
diesel::table! {
keys (id) {
id -> Integer,
#[sql_name = "email-unsubscribe-url"]
email_unsubscribe_url -> Binary,
}
}
diesel::allow_tables_to_appear_in_same_query!(
accounts,
keys,
);