2020-04-14 11:45:45 +00:00
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use std::collections::HashMap;
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use std::sync::{Arc, RwLock};
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2020-04-06 10:09:27 +00:00
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use failure::*;
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use lazy_static::lazy_static;
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use serde::{Serialize, Deserialize};
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use serde_json::json;
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use proxmox::api::{
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api,
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schema::*,
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section_config::{
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SectionConfig,
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SectionConfigData,
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SectionConfigPlugin,
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}
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};
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use proxmox::tools::{fs::replace_file, fs::CreateOptions};
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use crate::api2::types::*;
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lazy_static! {
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static ref CONFIG: SectionConfig = init();
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}
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pub const ENABLE_USER_SCHEMA: Schema = BooleanSchema::new(
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"Enable the account (default). You can set this to '0' to disable the account.")
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.default(true)
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.schema();
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pub const EXPIRE_USER_SCHEMA: Schema = IntegerSchema::new(
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"Account expiration date (seconds since epoch). '0' means no expiration date.")
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.default(0)
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.minimum(0)
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.schema();
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pub const FIRST_NAME_SCHEMA: Schema = StringSchema::new("First name.")
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.format(&SINGLE_LINE_COMMENT_FORMAT)
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.min_length(2)
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.max_length(64)
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.schema();
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pub const LAST_NAME_SCHEMA: Schema = StringSchema::new("Last name.")
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.format(&SINGLE_LINE_COMMENT_FORMAT)
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.min_length(2)
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.max_length(64)
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.schema();
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pub const EMAIL_SCHEMA: Schema = StringSchema::new("E-Mail Address.")
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.format(&SINGLE_LINE_COMMENT_FORMAT)
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.min_length(2)
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.max_length(64)
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.schema();
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#[api(
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properties: {
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comment: {
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optional: true,
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schema: SINGLE_LINE_COMMENT_SCHEMA,
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},
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enable: {
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optional: true,
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schema: ENABLE_USER_SCHEMA,
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},
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expire: {
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optional: true,
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schema: EXPIRE_USER_SCHEMA,
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},
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firstname: {
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optional: true,
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schema: FIRST_NAME_SCHEMA,
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},
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lastname: {
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schema: LAST_NAME_SCHEMA,
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optional: true,
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},
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email: {
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schema: EMAIL_SCHEMA,
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optional: true,
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},
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}
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)]
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#[derive(Serialize,Deserialize)]
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/// User properties.
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pub struct User {
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#[serde(skip_serializing_if="Option::is_none")]
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pub comment: Option<String>,
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#[serde(skip_serializing_if="Option::is_none")]
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pub enable: Option<bool>,
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#[serde(skip_serializing_if="Option::is_none")]
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pub expire: Option<i64>,
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#[serde(skip_serializing_if="Option::is_none")]
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pub firstname: Option<String>,
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#[serde(skip_serializing_if="Option::is_none")]
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pub lastname: Option<String>,
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#[serde(skip_serializing_if="Option::is_none")]
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pub email: Option<String>,
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}
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fn init() -> SectionConfig {
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let obj_schema = match User::API_SCHEMA {
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Schema::Object(ref obj_schema) => obj_schema,
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_ => unreachable!(),
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};
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let plugin = SectionConfigPlugin::new("user".to_string(), obj_schema);
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let mut config = SectionConfig::new(&PROXMOX_USER_ID_SCHEMA);
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config.register_plugin(plugin);
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config
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}
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pub const USER_CFG_FILENAME: &str = "/etc/proxmox-backup/user.cfg";
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pub const USER_CFG_LOCKFILE: &str = "/etc/proxmox-backup/.user.lck";
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pub fn config() -> Result<(SectionConfigData, [u8;32]), Error> {
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let content = match std::fs::read_to_string(USER_CFG_FILENAME) {
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Ok(c) => c,
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Err(err) => {
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if err.kind() == std::io::ErrorKind::NotFound {
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String::from("")
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} else {
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bail!("unable to read '{}' - {}", USER_CFG_FILENAME, err);
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}
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}
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};
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let digest = openssl::sha::sha256(content.as_bytes());
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let mut data = CONFIG.parse(USER_CFG_FILENAME, &content)?;
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if data.sections.get("root@pam").is_none() {
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let user: User = serde_json::from_value(json!({
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"comment": "Superuser",
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})).unwrap();
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data.set_data("root@pam", "user", &user).unwrap();
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}
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Ok((data, digest))
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}
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2020-04-14 11:45:45 +00:00
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pub fn cached_config() -> Result<(Arc<SectionConfigData>,[u8;32]), Error> {
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struct ConfigCache {
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data: Option<(Arc<SectionConfigData>,[u8;32])>,
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last_mtime: i64,
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last_mtime_nsec: i64,
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}
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lazy_static! {
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static ref CACHED_CONFIG: RwLock<ConfigCache> = RwLock::new(
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ConfigCache { data: None, last_mtime: 0, last_mtime_nsec: 0 });
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}
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let stat = nix::sys::stat::stat(USER_CFG_FILENAME)?;
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{ // limit scope
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let cache = CACHED_CONFIG.read().unwrap();
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if stat.st_mtime == cache.last_mtime && stat.st_mtime_nsec == cache.last_mtime_nsec {
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if let Some((ref config, ref digest)) = cache.data {
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return Ok((config.clone(), *digest));
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}
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}
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}
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let (config, digest) = config()?;
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let config = Arc::new(config);
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let mut cache = CACHED_CONFIG.write().unwrap();
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cache.last_mtime = stat.st_mtime;
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cache.last_mtime_nsec = stat.st_mtime_nsec;
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cache.data = Some((config.clone(), digest.clone()));
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Ok((config, digest))
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}
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2020-04-06 10:09:27 +00:00
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pub fn save_config(config: &SectionConfigData) -> Result<(), Error> {
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let raw = CONFIG.write(USER_CFG_FILENAME, &config)?;
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let backup_user = crate::backup::backup_user()?;
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let mode = nix::sys::stat::Mode::from_bits_truncate(0o0640);
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// set the correct owner/group/permissions while saving file
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// owner(rw) = root, group(r)= backup
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let options = CreateOptions::new()
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.perm(mode)
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.owner(nix::unistd::ROOT)
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.group(backup_user.gid);
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replace_file(USER_CFG_FILENAME, raw.as_bytes(), options)?;
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Ok(())
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}
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// shell completion helper
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pub fn complete_user_name(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
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match config() {
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Ok((data, _digest)) => data.sections.iter().map(|(id, _)| id.to_string()).collect(),
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Err(_) => return vec![],
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}
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}
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