126 lines
3.7 KiB
Rust
126 lines
3.7 KiB
Rust
use std::mem::{self, MaybeUninit};
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use chrono::prelude::*;
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use failure::*;
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use serde_json::{json, Value};
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use proxmox::{sortable, identity};
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use proxmox::api::{ApiHandler, ApiMethod, Router, RpcEnvironment};
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use proxmox::api::schema::*;
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use proxmox::tools::fs::{file_read_firstline, replace_file, CreateOptions};
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use crate::api2::types::*;
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fn read_etc_localtime() -> Result<String, Error> {
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// use /etc/timezone
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if let Ok(line) = file_read_firstline("/etc/timezone") {
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return Ok(line.trim().to_owned());
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}
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// otherwise guess from the /etc/localtime symlink
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let mut buf = MaybeUninit::<[u8; 64]>::uninit();
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let len = unsafe {
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libc::readlink(
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"/etc/localtime".as_ptr() as *const _,
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buf.as_mut_ptr() as *mut _,
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mem::size_of_val(&buf),
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)
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};
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if len <= 0 {
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bail!("failed to guess timezone");
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}
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let len = len as usize;
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let buf = unsafe {
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(*buf.as_mut_ptr())[len] = 0;
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buf.assume_init()
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};
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let link = std::str::from_utf8(&buf[..len])?;
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match link.rfind("/zoneinfo/") {
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Some(pos) => Ok(link[(pos + 10)..].to_string()),
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None => Ok(link.to_string()),
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}
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}
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fn get_time(
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_param: Value,
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_info: &ApiMethod,
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_rpcenv: &mut dyn RpcEnvironment,
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) -> Result<Value, Error> {
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let datetime = Local::now();
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let offset = datetime.offset();
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let time = datetime.timestamp();
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let localtime = time + (offset.fix().local_minus_utc() as i64);
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Ok(json!({
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"timezone": read_etc_localtime()?,
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"time": time,
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"localtime": localtime,
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}))
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}
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fn set_timezone(
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param: Value,
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_info: &ApiMethod,
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_rpcenv: &mut dyn RpcEnvironment,
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) -> Result<Value, Error> {
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let timezone = crate::tools::required_string_param(¶m, "timezone")?;
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let path = std::path::PathBuf::from(format!("/usr/share/zoneinfo/{}", timezone));
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if !path.exists() {
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bail!("No such timezone.");
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}
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replace_file("/etc/timezone", timezone.as_bytes(), CreateOptions::new())?;
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let _ = std::fs::remove_file("/etc/localtime");
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use std::os::unix::fs::symlink;
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symlink(path, "/etc/localtime")?;
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Ok(Value::Null)
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}
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#[sortable]
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pub const ROUTER: Router = Router::new()
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.get(
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&ApiMethod::new(
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&ApiHandler::Sync(&get_time),
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&ObjectSchema::new(
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"Read server time and time zone settings.",
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&sorted!([ ("node", false, &NODE_SCHEMA) ]),
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)
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).returns(
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&ObjectSchema::new(
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"Returns server time and timezone.",
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&sorted!([
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("timezone", false, &StringSchema::new("Time zone").schema()),
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("time", false, &IntegerSchema::new("Seconds since 1970-01-01 00:00:00 UTC.")
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.minimum(1_297_163_644)
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.schema()
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),
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("localtime", false, &IntegerSchema::new("Seconds since 1970-01-01 00:00:00 UTC. (local time)")
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.minimum(1_297_163_644)
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.schema()
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),
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]),
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).schema()
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)
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)
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.put(
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&ApiMethod::new(
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&ApiHandler::Sync(&set_timezone),
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&ObjectSchema::new(
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"Set time zone.",
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&sorted!([
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("node", false, &NODE_SCHEMA),
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("timezone", false, &StringSchema::new(
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"Time zone. The file '/usr/share/zoneinfo/zone.tab' contains the list of valid names.")
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.schema()
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),
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]),
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)
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).protected(true).reload_timezone(true)
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);
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