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// This file is part of Moonfire NVR, a security camera digital video recorder.
// Copyright (C) 2017 Scott Lamb <slamb@slamb.org>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// In addition, as a special exception, the copyright holders give
// permission to link the code of portions of this program with the
// OpenSSL library under certain conditions as described in each
// individual source file, and distribute linked combinations including
// the two.
//
// You must obey the GNU General Public License in all respects for all
// of the code used other than OpenSSL. If you modify file(s) with this
// exception, you may extend this exception to your version of the
// file(s), but you are not obligated to do so. If you do not wish to do
// so, delete this exception statement from your version. If you delete
// this exception statement from all source files in the program, then
// also delete it here.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//! Text-based configuration interface.
//!
//! This code is a bit messy, but it's essentially a prototype. Eventually Moonfire NVR's
//! configuration will likely be almost entirely done through a web-based UI.
extern crate cursive;
use self::cursive::Cursive;
use self::cursive::views;
use db;
use dir;
use error::Error;
use regex::Regex;
use std::sync::Arc;
use std::fmt::Write;
use std::str::FromStr;
mod cameras;
mod retention;
static USAGE: &'static str = r#"
Interactive configuration editor.
Usage:
moonfire-nvr config [options]
moonfire-nvr config --help
Options:
--db-dir=DIR Set the directory holding the SQLite3 index database.
This is typically on a flash device.
[default: /var/lib/moonfire-nvr/db]
--sample-file-dir=DIR Set the directory holding video data.
This is typically on a hard drive.
[default: /var/lib/moonfire-nvr/sample]
"#;
static MULTIPLIERS: [(char, u64); 4] = [
// (suffix character, power of 2)
('T', 40),
('G', 30),
('M', 20),
('K', 10),
];
fn encode_size(mut raw: i64) -> String {
let mut encoded = String::new();
for &(c, n) in &MULTIPLIERS {
if raw >= 1i64<<n {
write!(&mut encoded, "{}{} ", raw >> n, c).unwrap();
raw &= (1i64 << n) - 1;
}
}
if raw > 0 || encoded.len() == 0 {
write!(&mut encoded, "{}", raw).unwrap();
} else {
encoded.pop(); // remove trailing space.
}
encoded
}
fn decode_size(encoded: &str) -> Result<i64, ()> {
let mut decoded = 0i64;
lazy_static! {
static ref RE: Regex = Regex::new(r"\s*([0-9]+)([TGMK])?,?\s*").unwrap();
}
let mut last_pos = 0;
for cap in RE.captures_iter(encoded) {
let whole_cap = cap.get(0).unwrap();
if whole_cap.start() > last_pos {
return Err(());
}
last_pos = whole_cap.end();
let mut piece = i64::from_str(&cap[1]).map_err(|_| ())?;
if let Some(m) = cap.get(2) {
let m = m.as_str().as_bytes()[0] as char;
for &(some_m, n) in &MULTIPLIERS {
if some_m == m {
piece *= 1i64<<n;
break;
}
}
}
decoded += piece;
}
if last_pos < encoded.len() {
return Err(());
}
Ok(decoded)
}
#[derive(Debug, Deserialize)]
struct Args {
flag_db_dir: String,
flag_sample_file_dir: String,
}
pub fn run() -> Result<(), Error> {
let args: Args = super::parse_args(USAGE)?;
let (_db_dir, conn) = super::open_conn(&args.flag_db_dir, super::OpenMode::ReadWrite)?;
let db = Arc::new(db::Database::new(conn)?);
//let dir = Arc::new(dir::Fd::open(&args.flag_sample_file_dir)?);
let dir = dir::SampleFileDir::new(&args.flag_sample_file_dir, db.clone())?;
let mut siv = Cursive::new();
//siv.add_global_callback('q', |s| s.quit());
siv.add_layer(views::Dialog::around(
views::SelectView::<fn(&Arc<db::Database>, &Arc<dir::SampleFileDir>, &mut Cursive)>::new()
.on_submit({
let db = db.clone();
let dir = dir.clone();
move |siv, item| item(&db, &dir, siv)
})
.item("Edit cameras".to_string(), cameras::add_dialog)
.item("Edit retention".to_string(), retention::add_dialog)
)
.button("Quit", |siv| siv.quit())
.title("Main menu"));
siv.run();
Ok(())
}
#[cfg(test)]
mod tests {
#[test]
fn test_decode() {
assert_eq!(super::decode_size("100M").unwrap(), 100i64 << 20);
}
}