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openid: allow to configure scopes, prompt, ACRs and arbitrary username-claim values

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- no longer set prompt to 'login' (makes auto-login possible)
- new prompt configuration
- allow arbitrary username-claim values

Depend on proxmox-openid 0.9.0.

Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
This commit is contained in:
Dietmar Maurer 2021-11-18 11:19:44 +01:00
parent df32530750
commit 10beed1199
6 changed files with 196 additions and 94 deletions
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2
Cargo.toml
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@ -109,7 +109,7 @@ proxmox-shared-memory = "0.1.1"
proxmox-acme-rs = "0.3"
proxmox-apt = "0.8.0"
proxmox-openid = "0.8.1"
proxmox-openid = "0.9.0"
pbs-api-types = { path = "pbs-api-types" }
pbs-buildcfg = { path = "pbs-buildcfg" }

3
pbs-api-types/src/lib.rs
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@ -68,6 +68,9 @@ pub use crypto::{CryptMode, Fingerprint, bytes_as_fingerprint};
pub mod file_restore;
mod openid;
pub use openid::*;
mod remote;
pub use remote::*;

121
pbs-api-types/src/openid.rs Normal file
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@ -0,0 +1,121 @@
use serde::{Deserialize, Serialize};
use proxmox_schema::{
api, ApiStringFormat, ArraySchema, Schema, StringSchema, Updater,
};
use super::{
PROXMOX_SAFE_ID_REGEX, PROXMOX_SAFE_ID_FORMAT, REALM_ID_SCHEMA,
SINGLE_LINE_COMMENT_SCHEMA,
};
pub const OPENID_SCOPE_FORMAT: ApiStringFormat =
ApiStringFormat::Pattern(&PROXMOX_SAFE_ID_REGEX);
pub const OPENID_SCOPE_SCHEMA: Schema = StringSchema::new("OpenID Scope Name.")
.format(&OPENID_SCOPE_FORMAT)
.schema();
pub const OPENID_SCOPE_ARRAY_SCHEMA: Schema = ArraySchema::new(
"Array of OpenId Scopes.", &OPENID_SCOPE_SCHEMA).schema();
pub const OPENID_SCOPE_LIST_FORMAT: ApiStringFormat =
ApiStringFormat::PropertyString(&OPENID_SCOPE_ARRAY_SCHEMA);
pub const OPENID_DEFAILT_SCOPE_LIST: &'static str = "email profile";
pub const OPENID_SCOPE_LIST_SCHEMA: Schema = StringSchema::new("OpenID Scope List")
.format(&OPENID_SCOPE_LIST_FORMAT)
.default(OPENID_DEFAILT_SCOPE_LIST)
.schema();
pub const OPENID_ACR_FORMAT: ApiStringFormat =
ApiStringFormat::Pattern(&PROXMOX_SAFE_ID_REGEX);
pub const OPENID_ACR_SCHEMA: Schema = StringSchema::new("OpenID Authentication Context Class Reference.")
.format(&OPENID_SCOPE_FORMAT)
.schema();
pub const OPENID_ACR_ARRAY_SCHEMA: Schema = ArraySchema::new(
"Array of OpenId ACRs.", &OPENID_ACR_SCHEMA).schema();
pub const OPENID_ACR_LIST_FORMAT: ApiStringFormat =
ApiStringFormat::PropertyString(&OPENID_ACR_ARRAY_SCHEMA);
pub const OPENID_ACR_LIST_SCHEMA: Schema = StringSchema::new("OpenID ACR List")
.format(&OPENID_ACR_LIST_FORMAT)
.schema();
pub const OPENID_USERNAME_CLAIM_SCHEMA: Schema = StringSchema::new(
"Use the value of this attribute/claim as unique user name. It \
is up to the identity provider to guarantee the uniqueness. The \
OpenID specification only guarantees that Subject ('sub') is \
unique. Also make sure that the user is not allowed to change that \
attribute by himself!")
.max_length(64)
.min_length(1)
.format(&PROXMOX_SAFE_ID_FORMAT) .schema();
#[api(
properties: {
realm: {
schema: REALM_ID_SCHEMA,
},
"client-key": {
optional: true,
},
"scopes": {
schema: OPENID_SCOPE_LIST_SCHEMA,
optional: true,
},
"acr-values": {
schema: OPENID_ACR_LIST_SCHEMA,
optional: true,
},
prompt: {
description: "OpenID Prompt",
type: String,
format: &PROXMOX_SAFE_ID_FORMAT,
optional: true,
},
comment: {
optional: true,
schema: SINGLE_LINE_COMMENT_SCHEMA,
},
autocreate: {
optional: true,
default: false,
},
"username-claim": {
schema: OPENID_USERNAME_CLAIM_SCHEMA,
optional: true,
},
},
)]
#[derive(Serialize, Deserialize, Updater)]
#[serde(rename_all="kebab-case")]
/// OpenID configuration properties.
pub struct OpenIdRealmConfig {
#[updater(skip)]
pub realm: String,
/// OpenID Issuer Url
pub issuer_url: String,
/// OpenID Client ID
pub client_id: String,
#[serde(skip_serializing_if="Option::is_none")]
pub scopes: Option<String>,
#[serde(skip_serializing_if="Option::is_none")]
pub acr_values: Option<String>,
#[serde(skip_serializing_if="Option::is_none")]
pub prompt: Option<String>,
/// OpenID Client Key
#[serde(skip_serializing_if="Option::is_none")]
pub client_key: Option<String>,
#[serde(skip_serializing_if="Option::is_none")]
pub comment: Option<String>,
/// Automatically create users if they do not exist.
#[serde(skip_serializing_if="Option::is_none")]
pub autocreate: Option<bool>,
#[updater(skip)]
#[serde(skip_serializing_if="Option::is_none")]
pub username_claim: Option<String>,
}

66
pbs-config/src/domains.rs
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@ -2,79 +2,17 @@ use std::collections::HashMap;
use anyhow::{Error};
use lazy_static::lazy_static;
use serde::{Serialize, Deserialize};
use proxmox_schema::{api, ApiType, Updater, Schema};
use proxmox_schema::{ApiType, Schema};
use proxmox_section_config::{SectionConfig, SectionConfigData, SectionConfigPlugin};
use pbs_api_types::{REALM_ID_SCHEMA, SINGLE_LINE_COMMENT_SCHEMA};
use pbs_api_types::{OpenIdRealmConfig, REALM_ID_SCHEMA};
use crate::{open_backup_lockfile, replace_backup_config, BackupLockGuard};
lazy_static! {
pub static ref CONFIG: SectionConfig = init();
}
#[api()]
#[derive(Eq, PartialEq, Debug, Serialize, Deserialize)]
#[serde(rename_all = "lowercase")]
/// Use the value of this attribute/claim as unique user name. It is
/// up to the identity provider to guarantee the uniqueness. The
/// OpenID specification only guarantees that Subject ('sub') is unique. Also
/// make sure that the user is not allowed to change that attribute by
/// himself!
pub enum OpenIdUserAttribute {
/// Subject (OpenId 'sub' claim)
Subject,
/// Username (OpenId 'preferred_username' claim)
Username,
/// Email (OpenId 'email' claim)
Email,
}
#[api(
properties: {
realm: {
schema: REALM_ID_SCHEMA,
},
"client-key": {
optional: true,
},
comment: {
optional: true,
schema: SINGLE_LINE_COMMENT_SCHEMA,
},
autocreate: {
optional: true,
default: false,
},
"username-claim": {
type: OpenIdUserAttribute,
optional: true,
},
},
)]
#[derive(Serialize, Deserialize, Updater)]
#[serde(rename_all="kebab-case")]
/// OpenID configuration properties.
pub struct OpenIdRealmConfig {
#[updater(skip)]
pub realm: String,
/// OpenID Issuer Url
pub issuer_url: String,
/// OpenID Client ID
pub client_id: String,
/// OpenID Client Key
#[serde(skip_serializing_if="Option::is_none")]
pub client_key: Option<String>,
#[serde(skip_serializing_if="Option::is_none")]
pub comment: Option<String>,
/// Automatically create users if they do not exist.
#[serde(skip_serializing_if="Option::is_none")]
pub autocreate: Option<bool>,
#[updater(skip)]
#[serde(skip_serializing_if="Option::is_none")]
pub username_claim: Option<OpenIdUserAttribute>,
}
fn init() -> SectionConfig {
let obj_schema = match OpenIdRealmConfig::API_SCHEMA {

82
src/api2/access/openid.rs
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@ -11,12 +11,15 @@ use proxmox_router::{
};
use proxmox_schema::{api, parse_simple_value};
use proxmox_openid::{OpenIdAuthenticator, OpenIdConfig};
use proxmox_openid::{OpenIdAuthenticator, OpenIdConfig};
use pbs_api_types::{User, Userid, EMAIL_SCHEMA, FIRST_NAME_SCHEMA, LAST_NAME_SCHEMA, REALM_ID_SCHEMA};
use pbs_api_types::{
OpenIdRealmConfig, User, Userid,
EMAIL_SCHEMA, FIRST_NAME_SCHEMA, LAST_NAME_SCHEMA, OPENID_DEFAILT_SCOPE_LIST,
REALM_ID_SCHEMA,
};
use pbs_buildcfg::PROXMOX_BACKUP_RUN_DIR_M;
use pbs_tools::ticket::Ticket;
use pbs_config::domains::{OpenIdUserAttribute, OpenIdRealmConfig};
use pbs_config::CachedUserInfo;
use pbs_config::open_backup_lockfile;
@ -25,15 +28,35 @@ use crate::auth_helpers::*;
use crate::server::ticket::ApiTicket;
fn openid_authenticator(realm_config: &OpenIdRealmConfig, redirect_url: &str) -> Result<OpenIdAuthenticator, Error> {
let scopes: Vec<String> = realm_config.scopes.as_deref().unwrap_or(OPENID_DEFAILT_SCOPE_LIST)
.split(|c: char| c == ',' || c == ';' || char::is_ascii_whitespace(&c))
.filter(|s| !s.is_empty())
.map(String::from)
.collect();
let mut acr_values = None;
if let Some(ref list) = realm_config.acr_values {
acr_values = Some(
list
.split(|c: char| c == ',' || c == ';' || char::is_ascii_whitespace(&c))
.filter(|s| !s.is_empty())
.map(String::from)
.collect()
);
}
let config = OpenIdConfig {
issuer_url: realm_config.issuer_url.clone(),
client_id: realm_config.client_id.clone(),
client_key: realm_config.client_key.clone(),
prompt: realm_config.prompt.clone(),
scopes: Some(scopes),
acr_values,
};
OpenIdAuthenticator::discover(&config, redirect_url)
}
#[api(
input: {
properties: {
@ -100,27 +123,33 @@ pub fn openid_login(
let open_id = openid_authenticator(&config, &redirect_url)?;
let info = open_id.verify_authorization_code(&code, &private_auth_state)?;
let info = open_id.verify_authorization_code_simple(&code, &private_auth_state)?;
// eprintln!("VERIFIED {} {:?} {:?}", info.subject().as_str(), info.name(), info.email());
// eprintln!("VERIFIED {:?}", info);
let unique_name = match config.username_claim {
None | Some(OpenIdUserAttribute::Subject) => info.subject().as_str(),
Some(OpenIdUserAttribute::Username) => {
match info.preferred_username() {
Some(name) => name.as_str(),
None => bail!("missing claim 'preferred_name'"),
}
}
Some(OpenIdUserAttribute::Email) => {
match info.email() {
Some(name) => name.as_str(),
None => bail!("missing claim 'email'"),
let name_attr = config.username_claim.as_deref().unwrap_or("sub");
// Try to be compatible with previous versions
let try_attr = match name_attr {
"subject" => Some("sub"),
"username" => Some("preferred_username"),
_ => None,
};
let unique_name = match info[name_attr].as_str() {
Some(name) => name.to_owned(),
None => {
if let Some(try_attr) = try_attr {
match info[try_attr].as_str() {
Some(name) => name.to_owned(),
None => bail!("missing claim '{}'", name_attr),
}
} else {
bail!("missing claim '{}'", name_attr);
}
}
};
let user_id = Userid::try_from(format!("{}@{}", unique_name, realm))?;
tested_username = Some(unique_name.to_string());
@ -129,17 +158,14 @@ pub fn openid_login(
use pbs_config::user;
let _lock = open_backup_lockfile(user::USER_CFG_LOCKFILE, None, true)?;
let firstname = info.given_name().and_then(|n| n.get(None))
.filter(|n| parse_simple_value(n, &FIRST_NAME_SCHEMA).is_ok())
.map(|n| n.to_string());
let firstname = info["given_name"].as_str().map(|n| n.to_string())
.filter(|n| parse_simple_value(n, &FIRST_NAME_SCHEMA).is_ok());
let lastname = info.family_name().and_then(|n| n.get(None))
.filter(|n| parse_simple_value(n, &LAST_NAME_SCHEMA).is_ok())
.map(|n| n.to_string());
let lastname = info["family_name"].as_str().map(|n| n.to_string())
.filter(|n| parse_simple_value(n, &LAST_NAME_SCHEMA).is_ok());
let email = info.email()
.filter(|n| parse_simple_value(n, &EMAIL_SCHEMA).is_ok())
.map(|e| e.to_string());
let email = info["email"].as_str().map(|n| n.to_string())
.filter(|n| parse_simple_value(n, &EMAIL_SCHEMA).is_ok());
let user = User {
userid: user_id.clone(),

16
src/api2/config/access/openid.rs
View File

@ -8,9 +8,11 @@ use proxmox_router::{Router, RpcEnvironment, Permission};
use proxmox_schema::api;
use pbs_api_types::{
OpenIdRealmConfig, OpenIdRealmConfigUpdater,
PROXMOX_CONFIG_DIGEST_SCHEMA, REALM_ID_SCHEMA, PRIV_SYS_AUDIT, PRIV_REALM_ALLOCATE,
};
use pbs_config::domains::{self, OpenIdRealmConfig, OpenIdRealmConfigUpdater};
use pbs_config::domains;
#[api(
input: {
@ -157,6 +159,12 @@ pub enum DeletableProperty {
comment,
/// Delete the autocreate property
autocreate,
/// Delete the scopes property
scopes,
/// Delete the prompt property
prompt,
/// Delete the acr_values property
acr_values,
}
#[api(
@ -215,6 +223,9 @@ pub fn update_openid_realm(
DeletableProperty::client_key => { config.client_key = None; },
DeletableProperty::comment => { config.comment = None; },
DeletableProperty::autocreate => { config.autocreate = None; },
DeletableProperty::scopes => { config.scopes = None; },
DeletableProperty::prompt => { config.prompt = None; },
DeletableProperty::acr_values => { config.acr_values = None; },
}
}
}
@ -233,6 +244,9 @@ pub fn update_openid_realm(
if update.client_key.is_some() { config.client_key = update.client_key; }
if update.autocreate.is_some() { config.autocreate = update.autocreate; }
if update.scopes.is_some() { config.scopes = update.scopes; }
if update.prompt.is_some() { config.prompt = update.prompt; }
if update.acr_values.is_some() { config.acr_values = update.acr_values; }
domains.set_data(&realm, "openid", &config)?;