termscp/src/ui/activities/filetransfer_activity/mod.rs

350 lines
12 KiB
Rust

//! ## FileTransferActivity
//!
//! `filetransfer_activiy` is the module which implements the Filetransfer activity, which is the main activity afterall
/**
* MIT License
*
* termscp - Copyright (c) 2021 Christian Visintin
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
// This module is split into files, cause it's just too big
mod actions;
mod misc;
mod session;
mod update;
mod view;
// Dependencies
extern crate chrono;
extern crate crossterm;
extern crate textwrap;
extern crate tui;
// locals
use super::{Activity, Context, ExitReason};
use crate::filetransfer::ftp_transfer::FtpFileTransfer;
use crate::filetransfer::scp_transfer::ScpFileTransfer;
use crate::filetransfer::sftp_transfer::SftpFileTransfer;
use crate::filetransfer::{FileTransfer, FileTransferProtocol};
use crate::fs::explorer::FileExplorer;
use crate::fs::FsEntry;
use crate::system::config_client::ConfigClient;
use crate::ui::layout::view::View;
// Includes
use chrono::{DateTime, Local};
use crossterm::terminal::{disable_raw_mode, enable_raw_mode};
use std::collections::VecDeque;
use std::path::PathBuf;
use std::time::Instant;
// -- Storage keys
const STORAGE_EXPLORER_WIDTH: &str = "FILETRANSFER_EXPLORER_WIDTH";
const STORAGE_LOGBOX_WIDTH: &str = "LOGBOX_WIDTH";
// -- components
const COMPONENT_EXPLORER_LOCAL: &str = "EXPLORER_LOCAL";
const COMPONENT_EXPLORER_REMOTE: &str = "EXPLORER_REMOTE";
const COMPONENT_EXPLORER_FIND: &str = "EXPLORER_FIND";
const COMPONENT_LOG_BOX: &str = "LOG_BOX";
const COMPONENT_PROGRESS_BAR: &str = "PROGRESS_BAR";
const COMPONENT_TEXT_ERROR: &str = "TEXT_ERROR";
const COMPONENT_TEXT_FATAL: &str = "TEXT_FATAL";
const COMPONENT_TEXT_HELP: &str = "TEXT_HELP";
const COMPONENT_TEXT_WAIT: &str = "TEXT_WAIT";
const COMPONENT_INPUT_COPY: &str = "INPUT_COPY";
const COMPONENT_INPUT_EXEC: &str = "INPUT_EXEC";
const COMPONENT_INPUT_FIND: &str = "INPUT_FIND";
const COMPONENT_INPUT_GOTO: &str = "INPUT_GOTO";
const COMPONENT_INPUT_MKDIR: &str = "INPUT_MKDIR";
const COMPONENT_INPUT_NEWFILE: &str = "INPUT_NEWFILE";
const COMPONENT_INPUT_RENAME: &str = "INPUT_RENAME";
const COMPONENT_INPUT_SAVEAS: &str = "INPUT_SAVEAS";
const COMPONENT_RADIO_DELETE: &str = "RADIO_DELETE";
const COMPONENT_RADIO_DISCONNECT: &str = "RADIO_DISCONNECT";
const COMPONENT_RADIO_QUIT: &str = "RADIO_QUIT";
const COMPONENT_RADIO_SORTING: &str = "RADIO_SORTING";
const COMPONENT_LIST_FILEINFO: &str = "LIST_FILEINFO";
/// ## FileExplorerTab
///
/// File explorer tab
enum FileExplorerTab {
Local,
Remote,
FindLocal, // Find result tab
FindRemote, // Find result tab
}
/// ## LogLevel
///
/// Log level type
enum LogLevel {
Error,
Warn,
Info,
}
/// ## LogRecord
///
/// Log record entry
struct LogRecord {
pub time: DateTime<Local>,
pub level: LogLevel,
pub msg: String,
}
impl LogRecord {
/// ### new
///
/// Instantiates a new LogRecord
pub fn new(level: LogLevel, msg: &str) -> LogRecord {
LogRecord {
time: Local::now(),
level,
msg: String::from(msg),
}
}
}
/// ### TransferStates
///
/// TransferStates contains the states related to the transfer process
struct TransferStates {
pub progress: f64, // Current read/write progress (percentage)
pub started: Instant, // Instant the transfer process started
pub aborted: bool, // Describes whether the transfer process has been aborted
pub bytes_written: usize, // Bytes written during transfer
pub bytes_total: usize, // Total bytes to write
}
impl TransferStates {
/// ### new
///
/// Instantiates a new transfer states
pub fn new() -> TransferStates {
TransferStates {
progress: 0.0,
started: Instant::now(),
aborted: false,
bytes_written: 0,
bytes_total: 0,
}
}
/// ### reset
///
/// Re-intiialize transfer states
pub fn reset(&mut self) {
self.progress = 0.0;
self.started = Instant::now();
self.aborted = false;
self.bytes_written = 0;
self.bytes_total = 0;
}
/// ### set_progress
///
/// Calculate progress percentage based on current progress
pub fn set_progress(&mut self, w: usize, sz: usize) {
self.bytes_written = w;
self.bytes_total = sz;
let mut prog: f64 = ((self.bytes_written as f64) * 100.0) / (self.bytes_total as f64);
// Check value
if prog > 100.0 {
prog = 100.0;
} else if prog < 0.0 {
prog = 0.0;
}
self.progress = prog;
}
/// ### byte_per_second
///
/// Calculate bytes per second
pub fn bytes_per_second(&self) -> u64 {
// bytes_written : elapsed_secs = x : 1
let elapsed_secs: u64 = self.started.elapsed().as_secs();
match elapsed_secs {
0 => match self.bytes_written == self.bytes_total {
// NOTE: would divide by 0 :D
true => self.bytes_total as u64, // Download completed in less than 1 second
false => 0, // 0 B/S
},
_ => self.bytes_written as u64 / elapsed_secs,
}
}
}
impl Default for TransferStates {
fn default() -> Self {
Self::new()
}
}
/// ## FileTransferActivity
///
/// FileTransferActivity is the data holder for the file transfer activity
pub struct FileTransferActivity {
exit_reason: Option<ExitReason>, // Exit reason
context: Option<Context>, // Context holder
view: View, // View
client: Box<dyn FileTransfer>, // File transfer client
local: FileExplorer, // Local File explorer state
remote: FileExplorer, // Remote File explorer state
found: Option<FileExplorer>, // File explorer for find result
tab: FileExplorerTab, // Current selected tab
log_index: usize, // Current log index entry selected
log_records: VecDeque<LogRecord>, // Log records
log_size: usize, // Log records size (max)
transfer: TransferStates, // Transfer states
}
impl FileTransferActivity {
/// ### new
///
/// Instantiates a new FileTransferActivity
pub fn new(protocol: FileTransferProtocol) -> FileTransferActivity {
// Get config client
let config_client: Option<ConfigClient> = Self::init_config_client();
FileTransferActivity {
exit_reason: None,
context: None,
view: View::init(),
client: match protocol {
FileTransferProtocol::Sftp => Box::new(SftpFileTransfer::new(
Self::make_ssh_storage(config_client.as_ref()),
)),
FileTransferProtocol::Ftp(ftps) => Box::new(FtpFileTransfer::new(ftps)),
FileTransferProtocol::Scp => Box::new(ScpFileTransfer::new(
Self::make_ssh_storage(config_client.as_ref()),
)),
},
local: Self::build_explorer(config_client.as_ref()),
remote: Self::build_explorer(config_client.as_ref()),
found: None,
tab: FileExplorerTab::Local,
log_index: 0,
log_records: VecDeque::with_capacity(256), // 256 events is enough I guess
log_size: 256, // Must match with capacity
transfer: TransferStates::default(),
}
}
}
/**
* Activity Trait
* Keep it clean :)
* Use methods instead!
*/
impl Activity for FileTransferActivity {
/// ### on_create
///
/// `on_create` is the function which must be called to initialize the activity.
/// `on_create` must initialize all the data structures used by the activity
fn on_create(&mut self, context: Context) {
// Set context
self.context = Some(context);
// Clear terminal
self.context.as_mut().unwrap().clear_screen();
// Put raw mode on enabled
let _ = enable_raw_mode();
// Set working directory
let pwd: PathBuf = self.context.as_ref().unwrap().local.pwd();
// Get files at current wd
self.local_scan(pwd.as_path());
self.local.wrkdir = pwd;
// Configure text editor
self.setup_text_editor();
// init view
self.init();
// Verify error state from context
if let Some(err) = self.context.as_mut().unwrap().get_error() {
self.mount_fatal(&err);
}
}
/// ### on_draw
///
/// `on_draw` is the function which draws the graphical interface.
/// This function must be called at each tick to refresh the interface
fn on_draw(&mut self) {
// Should ui actually be redrawned?
let mut redraw: bool = false;
// Context must be something
if self.context.is_none() {
return;
}
// Check if connected (popup must be None, otherwise would try reconnecting in loop in case of error)
if !self.client.is_connected() && self.view.get_props(COMPONENT_TEXT_FATAL).is_none() {
let params = self.context.as_ref().unwrap().ft_params.as_ref().unwrap();
let msg: String = format!("Connecting to {}:{}...", params.address, params.port);
// Set init state to connecting popup
self.mount_wait(msg.as_str());
// Force ui draw
self.view();
// Connect to remote
self.connect();
// Redraw
redraw = true;
}
// Handle input events (if false, becomes true; otherwise remains true)
redraw |= self.read_input_event();
// @! draw interface
if redraw {
self.view();
}
}
/// ### will_umount
///
/// `will_umount` is the method which must be able to report to the activity manager, whether
/// the activity should be terminated or not.
/// If not, the call will return `None`, otherwise return`Some(ExitReason)`
fn will_umount(&self) -> Option<&ExitReason> {
self.exit_reason.as_ref()
}
/// ### on_destroy
///
/// `on_destroy` is the function which cleans up runtime variables and data before terminating the activity.
/// This function must be called once before terminating the activity.
fn on_destroy(&mut self) -> Option<Context> {
// Disable raw mode
let _ = disable_raw_mode();
// Disconnect client
if self.client.is_connected() {
let _ = self.client.disconnect();
}
// Clear terminal and return
match self.context.take() {
Some(mut ctx) => {
ctx.clear_screen();
Some(ctx)
}
None => None,
}
}
}