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|
use ::std::collections::HashMap;
use ::tui::backend::Backend;
use ::tui::Terminal;
use crate::display::components::{HeaderDetails, HelpText, Layout, Table};
use crate::display::UIState;
use crate::network::{display_connection_string, display_ip_or_host, LocalSocket, Utilization};
use ::std::net::IpAddr;
use crate::RenderOpts;
use chrono::prelude::*;
use std::time::Duration;
pub struct Ui<B>
where
B: Backend,
{
terminal: Terminal<B>,
state: UIState,
ip_to_host: HashMap<IpAddr, String>,
opts: RenderOpts,
}
impl<B> Ui<B>
where
B: Backend,
{
pub fn new(terminal_backend: B, opts: RenderOpts) -> Self {
let mut terminal = Terminal::new(terminal_backend).unwrap();
terminal.clear().unwrap();
terminal.hide_cursor().unwrap();
let mut state: UIState = Default::default();
state.cumulative_mode = opts.total_utilization;
Ui {
terminal,
state,
ip_to_host: Default::default(),
opts,
}
}
pub fn output_text(&mut self, write_to_stdout: &mut (dyn FnMut(String) + Send)) {
let state = &self.state;
let ip_to_host = &self.ip_to_host;
let local_time: DateTime<Local> = Local::now();
let timestamp = local_time.timestamp();
let mut no_traffic = true;
let output_process_data = |write_to_stdout: &mut (dyn FnMut(String) + Send),
no_traffic: &mut bool| {
for (process, process_network_data) in &state.processes {
write_to_stdout(format!(
"process: <{}> \"{}\" up/down Bps: {}/{} connections: {}",
timestamp,
process,
process_network_data.total_bytes_uploaded,
process_network_data.total_bytes_downloaded,
process_network_data.connection_count
));
*no_traffic = false;
}
};
let output_connections_data =
|write_to_stdout: &mut (dyn FnMut(String) + Send), no_traffic: &mut bool| {
for (connection, connection_network_data) in &state.connections {
write_to_stdout(format!(
"connection: <{}> {} up/down Bps: {}/{} process: \"{}\"",
timestamp,
display_connection_string(
connection,
ip_to_host,
&connection_network_data.interface_name,
),
connection_network_data.total_bytes_uploaded,
connection_network_data.total_bytes_downloaded,
connection_network_data.process_name
));
*no_traffic = false;
}
};
let output_adressess_data = |write_to_stdout: &mut (dyn FnMut(String) + Send),
no_traffic: &mut bool| {
for (remote_address, remote_address_network_data) in &state.remote_addresses {
write_to_stdout(format!(
"remote_address: <{}> {} up/down Bps: {}/{} connections: {}",
timestamp,
display_ip_or_host(*remote_address, ip_to_host),
remote_address_network_data.total_bytes_uploaded,
remote_address_network_data.total_bytes_downloaded,
remote_address_network_data.connection_count
));
*no_traffic = false;
}
};
// header
write_to_stdout("Refreshing:".into());
// body1
if self.opts.processes {
output_process_data(write_to_stdout, &mut no_traffic);
}
if self.opts.connections {
output_connections_data(write_to_stdout, &mut no_traffic);
}
if self.opts.addresses {
output_adressess_data(write_to_stdout, &mut no_traffic);
}
if !(self.opts.processes || self.opts.connections || self.opts.addresses) {
output_process_data(write_to_stdout, &mut no_traffic);
output_connections_data(write_to_stdout, &mut no_traffic);
output_adressess_data(write_to_stdout, &mut no_traffic);
}
// body2: In case no traffic is detected
if no_traffic {
write_to_stdout("<NO TRAFFIC>".into());
}
// footer
write_to_stdout("".into());
}
pub fn draw(&mut self, paused: bool, show_dns: bool, elapsed_time: Duration, ui_offset: usize) {
let state = &self.state;
let children = self.get_tables_to_display();
self.terminal
.draw(|mut frame| {
let size = frame.size();
let total_bandwidth = HeaderDetails {
state: &state,
elapsed_time,
paused,
};
let help_text = HelpText { paused, show_dns };
let layout = Layout {
header: total_bandwidth,
children,
footer: help_text,
};
layout.render(&mut frame, size, ui_offset);
})
.unwrap();
}
fn get_tables_to_display(&self) -> Vec<Table<'static>> {
let opts = &self.opts;
let mut children: Vec<Table> = Vec::new();
if opts.processes {
children.push(Table::create_processes_table(&self.state));
}
if opts.addresses {
children.push(Table::create_remote_addresses_table(
&self.state,
&self.ip_to_host,
));
}
if opts.connections {
children.push(Table::create_connections_table(
&self.state,
&self.ip_to_host,
));
}
if !(opts.processes || opts.addresses || opts.connections) {
children = vec![
Table::create_processes_table(&self.state),
Table::create_remote_addresses_table(&self.state, &self.ip_to_host),
Table::create_connections_table(&self.state, &self.ip_to_host),
];
}
children
}
pub fn get_table_count(&self) -> usize {
self.get_tables_to_display().len()
}
pub fn update_state(
&mut self,
connections_to_procs: HashMap<LocalSocket, String>,
utilization: Utilization,
ip_to_host: HashMap<IpAddr, String>,
) {
self.state.update(connections_to_procs, utilization);
self.ip_to_host.extend(ip_to_host);
}
pub fn end(&mut self) {
self.terminal.clear().unwrap();
self.terminal.show_cursor().unwrap();
}
}
|
