134 lines
3.9 KiB
Rust
134 lines
3.9 KiB
Rust
use failure::*;
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use proxmox::{sortable, identity};
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use crate::api_schema::*;
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use crate::api_schema::router::*;
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use crate::api2::types::*;
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use serde_json::{json, Value};
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use std::process::{Command, Stdio};
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fn dump_journal(
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start: Option<u64>,
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limit: Option<u64>,
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since: Option<&str>,
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until: Option<&str>,
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service: Option<&str>,
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) -> Result<(u64, Vec<Value>), Error> {
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let mut args = vec!["-o", "short", "--no-pager"];
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if let Some(service) = service { args.extend(&["--unit", service]); }
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if let Some(since) = since { args.extend(&["--since", since]); }
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if let Some(until) = until { args.extend(&["--until", until]); }
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let mut lines: Vec<Value> = vec![];
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let mut limit = limit.unwrap_or(50);
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let start = start.unwrap_or(0);
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let mut count: u64 = 0;
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let mut child = Command::new("/bin/journalctl")
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.args(&args)
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.stdout(Stdio::piped())
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.spawn()?;
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use std::io::{BufRead,BufReader};
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if let Some(ref mut stdout) = child.stdout {
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for line in BufReader::new(stdout).lines() {
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match line {
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Ok(line) => {
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count += 1;
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if count < start { continue };
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if limit == 0 { continue };
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lines.push(json!({ "n": count, "t": line }));
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limit -= 1;
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}
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Err(err) => {
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log::error!("reading journal failed: {}", err);
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let _ = child.kill();
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break;
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}
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}
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}
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}
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let status = child.wait().unwrap();
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if !status.success() {
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log::error!("journalctl failed with {}", status);
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}
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// HACK: ExtJS store.guaranteeRange() does not like empty array
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// so we add a line
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if count == 0 {
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count += 1;
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lines.push(json!({ "n": count, "t": "no content"}));
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}
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Ok((count, lines))
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}
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fn get_syslog(
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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 (count, lines) = dump_journal(
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param["start"].as_u64(),
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param["limit"].as_u64(),
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param["since"].as_str(),
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param["until"].as_str(),
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param["service"].as_str())?;
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rpcenv.set_result_attrib("total", Value::from(count));
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Ok(json!(lines))
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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_syslog),
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&ObjectSchema::new(
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"Read server time and time zone settings.",
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&sorted!([
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("node", false, &NODE_SCHEMA),
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("start", true, &IntegerSchema::new("Start line number.")
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.minimum(0)
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.schema()
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),
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("limit", true, &IntegerSchema::new("Max. number of lines.")
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.minimum(0)
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.schema()
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),
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("since", true, &StringSchema::new("Display all log since this date-time string.")
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.format(&SYSTEMD_DATETIME_FORMAT)
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.schema()
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),
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("until", true, &StringSchema::new("Display all log until this date-time string.")
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.format(&SYSTEMD_DATETIME_FORMAT)
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.schema()
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),
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("service", true, &StringSchema::new("Service ID.")
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.max_length(128)
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.schema()
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),
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]),
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)
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).returns(
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&ObjectSchema::new(
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"Returns a list of syslog entries.",
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&sorted!([
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("n", false, &IntegerSchema::new("Line number.").schema()),
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("t", false, &StringSchema::new("Line text.").schema()),
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]),
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).schema()
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).protected(true)
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);
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