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use self::super::util::{human_readable_size, max_listing_lines, percent_decode, parent_url, GETCH_SPECIAL_PREFIX, GETCH_ARROW_RIGHT, GETCH_ARROW_LEFT,
GETCH_ARROW_DOWN, GETCH_ARROW_UP, GETCH_PAGE_DOWN, GETCH_PAGE_UP, TAB_SPACING, GETCH_DELETE, GETCH_ENTER, USER_AGENT, GETCH_HOME,
GETCH_ESC, GETCH_END};
use rfsapi::{RawFsApiHeader, FilesetData, RawFileData};
use std::io::{self, BufReader, BufRead, Write, Read};
use reqwest::{ClientBuilder, Response, IntoUrl, Client, Url};
use pbr::{Units as ProgressBarUnits, ProgressBar};
use reqwest::header::{ContentLength, UserAgent};
use std::path::{PathBuf, Path};
use itertools::Itertools;
use tabwriter::TabWriter;
use std::time::Duration;
use std::fs::File;
use getch::Getch;
use std::fmt;
use time::Tm;
pub mod term;
pub fn upload<U: IntoUrl>(u: U, f: File) -> Response {
client().put(u).header(UserAgent::new(USER_AGENT)).body(f).send().unwrap()
}
pub fn delete<U: IntoUrl>(u: U) -> Response {
client().delete(u).header(UserAgent::new(USER_AGENT)).send().unwrap()
}
pub fn download<U: IntoUrl>(u: U) -> Response {
really_download(u, true)
}
pub fn download_raw<U: IntoUrl>(u: U) -> Response {
really_download(u, false)
}
fn really_download<U: IntoUrl>(u: U, raw: bool) -> Response {
client().get(u).header(RawFsApiHeader(raw)).header(UserAgent::new(USER_AGENT)).send().unwrap()
}
fn client() -> Client {
ClientBuilder::new().gzip(true).build().unwrap()
}
pub fn paging_copy<R: Read, W: Write>(reader: &mut R, writer: &mut W, label: &str, input: &Getch, term_size: (usize, usize)) -> io::Result<bool> {
const END_MESSAGE_RAW_LEN: usize = 31 + 4 + 22 + 2 + 1 + 2 + 1;
let (tx, ty) = term_size;
let mut reader = BufReader::new(reader);
let mut outlines: Vec<String> = vec![];
let mut line = String::new();
while match reader.read_line(&mut line) {
Ok(read) => read != 0,
Err(e) => {
return if e.kind() == io::ErrorKind::InvalidData {
Ok(false)
} else {
Err(e)
};
}
} {
line = line.replace(&['\r', '\n'][..], "").replace('\t', &TAB_SPACING);
if line.is_empty() {
outlines.push(String::new());
} else {
outlines.extend(line.drain(..).chunks(tx).into_iter().map(|l| l.collect()));
}
}
drop(line);
let end_message_len = END_MESSAGE_RAW_LEN + label.chars().count();
let end_message_lines = (end_message_len as f64 / tx as f64).floor() as usize;
let screen_count = (outlines.len() as f64 / (ty - end_message_lines) as f64).ceil() as usize;
for (si, screen) in outlines.chunks(ty - end_message_lines).enumerate() {
if si != 0 {
try!(writeln!(writer));
}
for line in screen {
try!(writeln!(writer, "{}", line));
}
try!(write!(writer, "<{}> ", label));
if si == screen_count - 1 {
try!(write!(writer, "<End of file> <Press any key to stop>"));
} else {
try!(write!(writer,
"<{}%> <Press any key for {} screen> <Press Escape to stop>",
((si + 1) as f64 / screen_count as f64 * 100f64).round(),
if si + 1 == screen_count - 1 {
"last"
} else {
"next"
}));
}
try!(writer.flush());
match try!(input.getch()) {
GETCH_ESC => break,
GETCH_SPECIAL_PREFIX => {
try!(input.getch());
}
_ => {}
}
}
try!(writeln!(writer));
Ok(true)
}
pub struct ListContext {
cururl: Url,
files: Vec<RemoteFile>,
selected: usize,
have_write: bool,
bad_response_counter: usize,
}
impl ListContext {
pub fn new(starting_url: Url) -> ListContext {
ListContext {
cururl: starting_url,
files: vec![],
selected: 0,
have_write: false,
bad_response_counter: 0,
}
}
pub fn one_loop<W: Write>(&mut self, out: &mut W, input: &Getch, term_size: (usize, usize)) -> io::Result<bool> {
let mut resp = download(self.cururl.clone());
if !resp.status().is_success() {
try!(writeln!(out, "Contents of {}:", percent_decode(&self.cururl.to_string()).unwrap()));
try!(writeln!(out, "<Got {}...>", resp.status()));
self.back();
return Ok(true);
}
let data = match resp.json::<FilesetData>() {
Ok(d) => d,
Err(e) => {
try!(writeln!(out, "Contents of {}:", percent_decode(&self.cururl.to_string()).unwrap()));
try!(writeln!(out, "<Couldn't parse server response: {}...>", e));
self.bad_response_counter += !self.back() as usize;
if self.bad_response_counter == 3 {
try!(writeln!(out, "<Server at {} doesn't support RFSAPI.>", self.cururl));
}
return Ok(self.bad_response_counter != 3);
}
};
self.have_write = data.writes_supported;
if data.is_file {
if !try!(paging_copy(&mut download_raw(self.cururl.clone()), out, &self.cururl.path()[1..], input, term_size)) {
try!(writeln!(out, "Contents of {}:", percent_decode(&self.cururl.to_string()).unwrap()));
try!(writeln!(out, "<Not UTF-8, select download destination>"));
try!(self.download_file(out, self.cururl.clone(), term_size));
}
self.cururl = parent_url(&self.cururl);
} else {
self.files = RemoteFile::from_response(data);
try!(self.list_file_screen(out, term_size));
while let (true, exit) = try!(self.process_input(out, input, term_size)) {
if exit {
return Ok(false);
}
}
}
Ok(true)
}
fn list_file_screen<W: Write>(&self, mut out: &mut W, term_size: (usize, usize)) -> io::Result<()> {
let (_, ty) = term_size;
let lines_per_screen = max_listing_lines(ty);
let cur_screen = self.selected / lines_per_screen;
let screen_count = (self.files.len() as f64 / lines_per_screen as f64).ceil() as usize;
try!(writeln!(out,
"Contents of {} -- page {}/{}:",
percent_decode(&self.cururl.to_string()).unwrap(),
cur_screen + 1,
screen_count));
let mut tout = TabWriter::new(&mut out);
for (i, f) in self.files.iter().enumerate().skip(cur_screen * lines_per_screen).take(lines_per_screen) {
try!(writeln!(tout, "{}{}", if i == self.selected { ">" } else { " " }, f));
}
try!(tout.flush());
Ok(())
}
fn process_input<W: Write>(&mut self, out: &mut W, input: &Getch, term_size: (usize, usize)) -> io::Result<(bool, bool)> {
match try!(input.getch()) {
GETCH_ENTER => Ok((self.select(), false)),
GETCH_ESC | b'q' | b'Q' => Ok((true, true)),
b'd' | b'D' => {
let download_ok = !self.files.is_empty() && self.files[self.selected].size.is_some();
if download_ok {
try!(self.download_file(out, self.cururl.join(&self.files[self.selected].full_name).unwrap(), term_size));
}
Ok((!download_ok, false))
}
b'u' | b'U' => {
if self.have_write {
try!(self.upload(out));
} else {
try!(writeln!(out, "<Server doesn't permit write requests>"));
}
Ok((false, false))
}
GETCH_SPECIAL_PREFIX => {
let (_, ty) = term_size;
let lines_per_screen = max_listing_lines(ty);
match try!(input.getch()) {
GETCH_ARROW_UP => {
if self.selected != 0 {
try!(self.update_selected(out, ' ', term_size));
self.selected -= 1;
if self.selected != 0 && (self.selected + 1) % lines_per_screen == 0 {
try!(self.list_file_screen(out, term_size));
}
try!(self.update_selected(out, '>', term_size));
}
Ok((true, false))
}
GETCH_ARROW_DOWN => {
if self.selected + 1 != self.files.len() {
try!(self.update_selected(out, ' ', term_size));
self.selected += 1;
if self.selected % lines_per_screen == 0 {
try!(self.list_file_screen(out, term_size));
}
try!(self.update_selected(out, '>', term_size));
}
Ok((true, false))
}
GETCH_PAGE_UP => {
try!(self.update_selected(out, ' ', term_size));
if self.selected >= lines_per_screen {
self.selected -= lines_per_screen;
try!(self.list_file_screen(out, term_size));
} else {
self.selected = 0;
}
try!(self.update_selected(out, '>', term_size));
Ok((true, false))
}
GETCH_PAGE_DOWN => {
try!(self.update_selected(out, ' ', term_size));
if self.selected + lines_per_screen < self.files.len() {
self.selected += lines_per_screen;
try!(self.list_file_screen(out, term_size));
} else {
self.selected = self.files.len() - 1;
}
try!(self.update_selected(out, '>', term_size));
Ok((true, false))
}
GETCH_HOME => {
let selecteded = self.selected;
try!(self.update_selected(out, ' ', term_size));
self.selected = 0;
if selecteded >= lines_per_screen {
try!(self.list_file_screen(out, term_size));
}
try!(self.update_selected(out, '>', term_size));
Ok((true, false))
}
GETCH_END => {
let selecteded = self.selected;
let screen_count = (self.files.len() as f64 / lines_per_screen as f64).ceil() as usize;
try!(self.update_selected(out, ' ', term_size));
self.selected = self.files.len() - 1;
if selecteded < (screen_count - 2) * lines_per_screen {
try!(self.list_file_screen(out, term_size));
}
try!(self.update_selected(out, '>', term_size));
Ok((true, false))
}
GETCH_ARROW_LEFT => Ok((self.back(), false)),
GETCH_ARROW_RIGHT => Ok((self.select(), false)),
GETCH_DELETE => {
if self.have_write {
try!(self.delete(out));
} else {
try!(writeln!(out, "<Server doesn't permit write requests>"));
}
Ok((false, false))
}
_ => Ok((true, false)),
}
}
_ => Ok((true, false)),
}
}
fn update_selected<W: Write>(&self, out: &mut W, c: char, term_size: (usize, usize)) -> io::Result<()> {
let (_, ty) = term_size;
let lines_per_screen = max_listing_lines(ty);
let cur_screen = self.selected / lines_per_screen;
let screen_count = (self.files.len() as f64 / lines_per_screen as f64).ceil() as usize;
let lines_this_screen = if cur_screen == screen_count - 1 {
self.files.len() % lines_per_screen
} else {
lines_per_screen
};
let delta_h = lines_this_screen - (self.selected - (cur_screen * lines_per_screen));
try!(write!(out, "{}", term::move_cursor_up(delta_h)));
try!(write!(out, "{}", c));
try!(out.flush());
try!(write!(out, "{}", term::move_cursor_back(1)));
try!(write!(out, "{}", term::move_cursor_down(delta_h)));
Ok(())
}
fn select(&mut self) -> bool {
if !self.files.is_empty() {
self.cururl = self.cururl.join(&self.files[self.selected].full_name).unwrap();
self.selected = 0;
}
self.files.is_empty()
}
fn back(&mut self) -> bool {
let parent = parent_url(&self.cururl);
if parent != self.cururl {
self.cururl = parent;
self.selected = 0;
true
} else {
false
}
}
fn download_file<W: Write>(&self, mut out: &mut W, u: Url, term_size: (usize, usize)) -> io::Result<()> {
let f = PathBuf::from(&u.path()[1..]);
if let Some(outp) = term::save_file_picker(f.file_name().unwrap(), f.extension()) {
try!(writeln!(out, "<Downloading to {}...>", outp.display()));
let mut resp = download_raw(u);
let mut outf = try!(File::create(&outp));
if let Some(size) = resp.headers().get::<ContentLength>().map(|cl| cl.0) {
let (tx, _) = term_size;
let mut pb = ProgressBar::on(&mut out, size);
pb.set_units(ProgressBarUnits::Bytes);
pb.set_width(Some(tx));
pb.set_max_refresh_rate(Some(Duration::from_secs(1)));
let mut buf = vec![0; 4096];
loop {
let read = resp.read(&mut buf[..]).unwrap();
if read == 0 {
break;
}
try!(outf.write_all(&buf));
pb.add(read as u64);
}
pb.finish_println("");
} else {
try!(io::copy(&mut resp, &mut outf));
}
try!(writeln!(out, "<Done!>"));
}
Ok(())
}
fn upload<W: Write>(&self, out: &mut W) -> io::Result<()> {
if let Some(inp) = term::open_file_picker() {
try!(writeln!(out, "<Uploading {} to {}...>", inp.display(), percent_decode(&self.cururl.to_string()).unwrap()));
let upurl = self.cururl.join(&Path::new(inp.file_name().unwrap()).display().to_string()).unwrap();
let status = upload(upurl, try!(File::open(inp))).status();
if status.is_success() {
try!(writeln!(out, "<Success!>"));
} else {
try!(writeln!(out, "<Got {}...>", status));
}
}
Ok(())
}
fn delete<W: Write>(&mut self, out: &mut W) -> io::Result<()> {
let delurl = self.cururl.join(&self.files[self.selected].full_name).unwrap();
try!(writeln!(out, "<Deleting {}...>", percent_decode(&delurl.to_string()).unwrap()));
let status = delete(delurl.clone()).status();
if status.is_success() {
try!(writeln!(out, "<Success!>"));
} else {
try!(writeln!(out, "<Got {}...>", status));
}
self.selected = 0;
Ok(())
}
}
#[derive(Eq, PartialEq, Ord, PartialOrd, Debug, Clone, Hash)]
pub struct RemoteFile {
pub full_name: String,
pub size: Option<u64>,
pub human_size: Option<String>,
pub last_modified: Option<Tm>,
}
impl RemoteFile {
pub fn from_response(mut resp: FilesetData) -> Vec<RemoteFile> {
if resp.is_file {
vec![]
} else {
resp.files.sort_by_key(|f| f.is_file);
let mut fs: Vec<_> = resp.files
.into_iter()
.map(From::from)
.collect();
if !resp.is_root {
fs.insert(0,
RemoteFile {
full_name: "../".to_string(),
size: None,
human_size: None,
last_modified: None,
});
}
fs
}
}
}
impl From<RawFileData> for RemoteFile {
fn from(rfd: RawFileData) -> RemoteFile {
RemoteFile {
full_name: rfd.name + if rfd.is_file { "" } else { "/" },
size: if rfd.is_file { Some(rfd.size) } else { None },
human_size: if rfd.is_file {
Some(human_readable_size(rfd.size))
} else {
None
},
last_modified: Some(rfd.last_modified.to_local()),
}
}
}
impl fmt::Display for RemoteFile {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
try!(write!(f, "{}\t", self.full_name));
if let Some(hs) = self.human_size.as_ref() {
try!(write!(f, "{}", hs));
}
try!(write!(f, "\t"));
if let Some(lm) = self.last_modified.as_ref() {
try!(write!(f, "{}", lm.strftime("%F %T").unwrap()));
}
Ok(())
}
}