CSRF
提供 CSRF (Cross-Site Request Forgery) 保护的中间件.
Csrf 是实现了 Handler 的结构体, 内部还有一个 skipper 字段, 可以指定跳过某些不需要验证的请求. 默认情况下, 验证 Method::POST, Method::PATCH, Method::DELETE, Method::PUT 请求.
CsrfStore 提供对数据的存取操作. CookieStore 会在 Cookie 中存储数据, 将根据用户提交的 csrf-token 和 Cookie 值验证请求的有效性. 而 SessionStore 把数据存储在 Session 中, 将用户提交的数据和 Session 中的数据验证请求的有效性. 需要注意的是, SessionStore 必须和 session 中间件一起使用.
示例代码 (cookie store)
use salvo::csrf::*;
use salvo::prelude::*;
use serde::{Deserialize, Serialize};
#[handler]
pub async fn home(res: &mut Response) {
let html = r#"
<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>Csrf CookieStore</title></head>
<body>
<h2>Csrf Exampe: CookieStore</h2>
<ul>
<li><a href="../bcrypt">Bcrypt</a></li>
<li><a href="../hmac">Hmac</a></li>
<li><a href="../aes_gcm">Aes Gcm</a></li>
<li><a href="../ccp">chacha20poly1305</a></li>
</ul>
</body>"#;
res.render(Text::Html(html));
}
#[handler]
pub async fn get_page(depot: &mut Depot, res: &mut Response) {
let new_token = depot.csrf_token().map(|s| &*s).unwrap_or_default();
res.render(Text::Html(get_page_html(new_token, "")));
}
#[handler]
pub async fn post_page(req: &mut Request, depot: &mut Depot, res: &mut Response) {
#[derive(Deserialize, Serialize, Debug)]
struct Data {
csrf_token: String,
message: String,
}
let data = req.parse_form::<Data>().await.unwrap();
tracing::info!("posted data: {:?}", data);
let new_token = depot.csrf_token().map(|s| &*s).unwrap_or_default();
let html = get_page_html(new_token, &format!("{:#?}", data));
res.render(Text::Html(html));
}
#[tokio::main]
async fn main() {
tracing_subscriber::fmt().init();
let form_finder = FormFinder::new("csrf_token");
let bcrypt_csrf = bcrypt_cookie_csrf(form_finder.clone());
let hmac_csrf = hmac_cookie_csrf(*b"01234567012345670123456701234567", form_finder.clone());
let aes_gcm_cookie_csrf =
aes_gcm_cookie_csrf(*b"01234567012345670123456701234567", form_finder.clone());
let ccp_cookie_csrf =
ccp_cookie_csrf(*b"01234567012345670123456701234567", form_finder.clone());
let router = Router::new()
.get(home)
.push(
Router::with_hoop(bcrypt_csrf)
.path("bcrypt")
.get(get_page)
.post(post_page),
)
.push(
Router::with_hoop(hmac_csrf)
.path("hmac")
.get(get_page)
.post(post_page),
)
.push(
Router::with_hoop(aes_gcm_cookie_csrf)
.path("aes_gcm")
.get(get_page)
.post(post_page),
)
.push(
Router::with_hoop(ccp_cookie_csrf)
.path("ccp")
.get(get_page)
.post(post_page),
);
let acceptor = TcpListener::new("127.0.0.1:7878").bind().await;
Server::new(acceptor).serve(router).await;
}
fn get_page_html(csrf_token: &str, msg: &str) -> String {
format!(
r#"
<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>Csrf Example</title></head>
<body>
<h2>Csrf Exampe: CookieStore</h2>
<ul>
<li><a href="../bcrypt/">Bcrypt</a></li>
<li><a href="../hmac/">Hmac</a></li>
<li><a href="../aes_gcm/">Aes Gcm</a></li>
<li><a href="../ccp/">chacha20poly1305</a></li>
</ul>
<form action="./" method="post">
<input type="hidden" name="csrf_token" value="{}" />
<div>
<label>Message:<input type="text" name="message" /></label>
</div>
<button type="submit">Send</button>
</form>
<pre>{}</pre>
</body>
</html>
"#,
csrf_token, msg
)
}[package]
name = "example-csrf-cookie-store"
version = "0.1.0"
edition = "2021"
publish = false
[dependencies]
salvo = { workspace = true, features = ["csrf", "jwt-auth"]}
tokio = { version = "1", features = ["macros"] }
tracing = "0.1"
tracing-subscriber = "0.3"
serde = { version = "1", features = ["derive"] }Example (session store)
use salvo::csrf::*;
use salvo::prelude::*;
use salvo::session::{MemoryStore, SessionHandler};
use serde::{Deserialize, Serialize};
#[handler]
pub async fn home(res: &mut Response) {
let html = r#"
<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>Csrf SessionStore</title></head>
<body>
<h2>Csrf Exampe: SessionStore</h2>
<ul>
<li><a href="../bcrypt">Bcrypt</a></li>
<li><a href="../hmac">Hmac</a></li>
<li><a href="../aes_gcm">Aes Gcm</a></li>
<li><a href="../ccp">chacha20poly1305</a></li>
</ul>
</body>"#;
res.render(Text::Html(html));
}
#[handler]
pub async fn get_page(depot: &mut Depot, res: &mut Response) {
let new_token = depot.csrf_token().map(|s| &*s).unwrap_or_default();
res.render(Text::Html(get_page_html(new_token, "")));
}
#[handler]
pub async fn post_page(req: &mut Request, depot: &mut Depot, res: &mut Response) {
#[derive(Deserialize, Serialize, Debug)]
struct Data {
csrf_token: String,
message: String,
}
let data = req.parse_form::<Data>().await.unwrap();
tracing::info!("posted data: {:?}", data);
let new_token = depot.csrf_token().map(|s| &*s).unwrap_or_default();
let html = get_page_html(new_token, &format!("{:#?}", data));
res.render(Text::Html(html));
}
#[tokio::main]
async fn main() {
tracing_subscriber::fmt().init();
let form_finder = FormFinder::new("csrf_token");
let bcrypt_csrf = bcrypt_session_csrf(form_finder.clone());
let hmac_csrf = hmac_session_csrf(*b"01234567012345670123456701234567", form_finder.clone());
let aes_gcm_session_csrf =
aes_gcm_session_csrf(*b"01234567012345670123456701234567", form_finder.clone());
let ccp_session_csrf =
ccp_session_csrf(*b"01234567012345670123456701234567", form_finder.clone());
let session_handler = SessionHandler::builder(
MemoryStore::new(),
b"secretabsecretabsecretabsecretabsecretabsecretabsecretabsecretab",
)
.build()
.unwrap();
let router = Router::new()
.get(home)
.hoop(session_handler)
.push(
Router::with_hoop(bcrypt_csrf)
.path("bcrypt")
.get(get_page)
.post(post_page),
)
.push(
Router::with_hoop(hmac_csrf)
.path("hmac")
.get(get_page)
.post(post_page),
)
.push(
Router::with_hoop(aes_gcm_session_csrf)
.path("aes_gcm")
.get(get_page)
.post(post_page),
)
.push(
Router::with_hoop(ccp_session_csrf)
.path("ccp")
.get(get_page)
.post(post_page),
);
let acceptor = TcpListener::new("127.0.0.1:5800").bind().await;
Server::new(acceptor).serve(router).await;
}
fn get_page_html(csrf_token: &str, msg: &str) -> String {
format!(
r#"
<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>Csrf SessionStore</title></head>
<body>
<h2>Csrf Exampe: SessionStore</h2>
<ul>
<li><a href="../bcrypt/">Bcrypt</a></li>
<li><a href="../hmac/">Hmac</a></li>
<li><a href="../aes_gcm/">Aes Gcm</a></li>
<li><a href="../ccp/">chacha20poly1305</a></li>
</ul>
<form action="./" method="post">
<input type="hidden" name="csrf_token" value="{}" />
<div>
<label>Message:<input type="text" name="message" /></label>
</div>
<button type="submit">Send</button>
</form>
<pre>{}</pre>
</body>
</html>
"#,
csrf_token, msg
)
}[package]
name = "example-csrf-session-store"
version = "0.1.0"
edition = "2021"
publish = false
[dependencies]
salvo = { workspace = true, features = ["csrf", "session"] }
tokio = { version = "1", features = ["macros"] }
tracing = "0.1"
tracing-subscriber = "0.3"
serde = { version = "1", features = ["derive"] }