mirror of
https://git.proxmox.com/git/proxmox
synced 2025-11-03 14:02:52 +00:00
230 lines
5.6 KiB
Rust
230 lines
5.6 KiB
Rust
use std::sync::Mutex;
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use std::collections::HashMap;
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use std::future::Future;
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use std::pin::Pin;
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use anyhow::{bail, format_err, Error};
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use lazy_static::lazy_static;
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use hyper::{Body, Response, Method};
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use http::request::Parts;
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use http::HeaderMap;
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use proxmox_schema::api;
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use proxmox_router::{list_subdirs_api_method, SubdirMap, Router, RpcEnvironmentType, UserInformation};
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use proxmox_rest_server::{ServerAdapter, ApiConfig, AuthError, RestServer, RestEnvironment};
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// Create a Dummy User information system
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struct DummyUserInfo;
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impl UserInformation for DummyUserInfo {
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fn is_superuser(&self, _userid: &str) -> bool {
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// Always return true here, so we have access to everthing
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true
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}
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fn is_group_member(&self, _userid: &str, group: &str) -> bool {
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group == "Group"
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}
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fn lookup_privs(&self, _userid: &str, _path: &[&str]) -> u64 {
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u64::MAX
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}
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}
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struct MinimalServer;
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// implement the server adapter
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impl ServerAdapter for MinimalServer {
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// normally this would check and authenticate the user
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fn check_auth(
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&self,
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_headers: &HeaderMap,
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_method: &Method,
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) -> Pin<Box<dyn Future<Output = Result<(String, Box<dyn UserInformation + Sync + Send>), AuthError>> + Send>> {
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Box::pin(async move {
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// get some global/cached userinfo
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let userinfo: Box<dyn UserInformation + Sync + Send> = Box::new(DummyUserInfo);
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// Do some user checks, e.g. cookie/csrf
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Ok(("User".to_string(), userinfo))
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})
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}
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// this should return the index page of the webserver
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// iow. what the user browses to
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fn get_index(
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&self,
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_env: RestEnvironment,
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_parts: Parts,
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) -> Pin<Box<dyn Future<Output = Response<Body>> + Send>> {
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Box::pin(async move {
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// build an index page
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http::Response::builder()
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.body("hello world".into())
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.unwrap()
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})
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}
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}
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// a few examples on how to do api calls with the Router
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#[api]
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/// A simple ping method. returns "pong"
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fn ping() -> Result<String, Error> {
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Ok("pong".to_string())
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}
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lazy_static! {
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static ref ITEM_MAP: Mutex<HashMap<String, String>> = Mutex::new(HashMap::new());
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}
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#[api]
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/// Lists all current items
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fn list_items() -> Result<Vec<String>, Error> {
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Ok(ITEM_MAP.lock().unwrap().keys().map(|k| k.clone()).collect())
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}
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#[api(
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input: {
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properties: {
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name: {
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type: String,
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description: "The name",
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},
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value: {
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type: String,
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description: "The value",
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},
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},
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},
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)]
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/// creates a new item
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fn create_item(name: String, value: String) -> Result<(), Error> {
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let mut map = ITEM_MAP.lock().unwrap();
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if map.contains_key(&name) {
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bail!("{} already exists", name);
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}
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map.insert(name, value);
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Ok(())
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}
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#[api(
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input: {
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properties: {
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name: {
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type: String,
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description: "The name",
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},
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},
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},
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)]
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/// returns the value of an item
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fn get_item(name: String) -> Result<String, Error> {
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ITEM_MAP.lock().unwrap().get(&name).map(|s| s.to_string()).ok_or_else(|| format_err!("no such item '{}'", name))
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}
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#[api(
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input: {
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properties: {
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name: {
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type: String,
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description: "The name",
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},
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value: {
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type: String,
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description: "The value",
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},
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},
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},
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)]
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/// updates an item
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fn update_item(name: String, value: String) -> Result<(), Error> {
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if let Some(val) = ITEM_MAP.lock().unwrap().get_mut(&name) {
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*val = value;
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} else {
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bail!("no such item '{}'", name);
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}
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Ok(())
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}
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#[api(
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input: {
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properties: {
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name: {
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type: String,
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description: "The name",
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},
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},
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},
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)]
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/// deletes an item
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fn delete_item(name: String) -> Result<(), Error> {
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if ITEM_MAP.lock().unwrap().remove(&name).is_none() {
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bail!("no such item '{}'", name);
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}
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Ok(())
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}
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const ITEM_ROUTER: Router = Router::new()
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.get(&API_METHOD_GET_ITEM)
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.put(&API_METHOD_UPDATE_ITEM)
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.delete(&API_METHOD_DELETE_ITEM);
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const SUBDIRS: SubdirMap = &[
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(
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"items",
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&Router::new()
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.get(&API_METHOD_LIST_ITEMS)
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.post(&API_METHOD_CREATE_ITEM)
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.match_all("name", &ITEM_ROUTER)
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),
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(
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"ping",
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&Router::new()
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.get(&API_METHOD_PING)
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),
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];
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const ROUTER: Router = Router::new()
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.get(&list_subdirs_api_method!(SUBDIRS))
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.subdirs(SUBDIRS);
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async fn run() -> Result<(), Error> {
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// we first have to configure the api environment (basedir etc.)
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let config = ApiConfig::new(
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"/var/tmp/",
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&ROUTER,
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RpcEnvironmentType::PUBLIC,
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MinimalServer,
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)?;
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let rest_server = RestServer::new(config);
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// then we have to create a daemon that listens, accepts and serves
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// the api to clients
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proxmox_rest_server::daemon::create_daemon(
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([127, 0, 0, 1], 65000).into(),
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move |listener| {
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let incoming = hyper::server::conn::AddrIncoming::from_listener(listener)?;
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Ok(async move {
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hyper::Server::builder(incoming)
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.serve(rest_server)
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.await?;
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Ok(())
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})
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},
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).await?;
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Ok(())
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}
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fn main() -> Result<(), Error> {
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let rt = tokio::runtime::Runtime::new()?;
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rt.block_on(async { run().await })
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}
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