fix gui issue with receiver

readme update
specifiy iui fallback version
2023-08-19 18:46:26 +02:00 · 2023-08-19 16:37:10 +02:00 · 2023-08-19 16:31:48 +02:00 · 2023-08-19 16:30:50 +02:00 · 2023-08-19 16:14:35 +02:00 · 2023-03-02 18:00:55 +01:00
9 changed files with 2383 additions and 174 deletions
--- a/16
+++ b/16
@ -0,0 +1,16 @@
 QFT: An application for Quick (and really reliable) Peer-To-Peer file transfer.
 Copyright (C) 2022  Daniel H. / TudbuT
 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.
 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 <https://www.gnu.org/licenses/>.
--- a/Cargo.lock
+++ b/Cargo.lock
@ -2,6 +2,660 @@
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 [[package]]
 name = "winapi-util"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 dependencies = [
 "winapi",
 ]
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 [[package]]
 name = "winreg"
 version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "80d0f4e272c85def139476380b12f9ac60926689dd2e01d4923222f40580869d"
 dependencies = [
 "winapi",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@ -1,8 +1,14 @@
 [package]
 name = "qft"
-version = "0.1.1"
+version = "0.5.6"
 edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]
 iui = { git = "https://github.com/rust-native-ui/libui-rs", optional = true, version = "0.3" }
 rand = { version = "0.8", optional = true }
 time = "0.3"
 [features]
 gui = [ "dep:iui", "dep:rand" ]
--- a/Cross.toml
+++ b/Cross.toml
@ -0,0 +1,2 @@
 [target.x86_64-apple-darwin]
 image = "ghcr.io/cross-rs/x86_64-apple-darwin-cross:local"
--- a/674
+++ b/674
@ -0,0 +1,674 @@
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 above cannot be given local legal effect according to their terms,
 reviewing courts shall apply local law that most closely approximates
 an absolute waiver of all civil liability in connection with the
 Program, unless a warranty or assumption of liability accompanies a
 copy of the Program in return for a fee.
                     END OF TERMS AND CONDITIONS
            How to Apply These Terms to Your New Programs
  If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
 free software which everyone can redistribute and change under these terms.
  To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>
    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.
    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 <https://www.gnu.org/licenses/>.
 Also add information on how to contact you by electronic and paper mail.
  If the program does terminal interaction, make it output a short
 notice like this when it starts in an interactive mode:
    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.
 The hypothetical commands `show w' and `show c' should show the appropriate
 parts of the General Public License.  Of course, your program's commands
 might be different; for a GUI interface, you would use an "about box".
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
 <https://www.gnu.org/licenses/>.
  The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <https://www.gnu.org/licenses/why-not-lgpl.html>.
--- a/README.md
+++ b/README.md
@ -0,0 +1,158 @@
 # qft
 QFT is a small application for Quick (and really reliable) Peer-To-Peer UDP file transfer. 
 ## If a friend sent you here...
 ...look at the "Releases" section on the sidebar. You should see a link titled vX.Y.Z. Click on
 that, and then choose the right file for your OS: `qft` for Linux, `qft-mac` for Mac, and `qft.exe`
 for Windows. Download this file, make it executable in case of Linux or Mac, and then follow your
 friend's instructions on how to receive the file they wanted to send you.
 ## Usage:
 - Find a public QFT helper (for example tudbut.de:4277)
 - On the sender PC, enter `qft sender <helper> <shared-phrase> <filename>`.
 - On the receiver PC, enter `qft receiver <helper> <shared-phrase> <filename>`.
 - Both PCs should start transferring after a short while. If they don't, try again.
 OR
 - On both PCs, enter `qft gui`.
 - Select mode
 - Select file to send and file to save to
 - Update the shared phrases and bitrate to match
 - Click start
 ### Arguments:
 ```
 qft helper   <bind-port>
 qft sender   <helper-address>:<helper-port> <phrase> <filename> [send-delay] [bitrate] [skip]
 qft receiver <helper-address>:<helper-port> <phrase> <filename> [bitrate] [skip]
 ```
 ## What helpers do
 Helpers are NOT relays for data, they are only used to ESTABLISH the connection.
 Helpers are there to help with holepunching.
 - P1 connects\* to helper
 - P1 sends the phrase to the helper
 - P1 waits for a response
 - Some time passes
 - P2 connects\* to the same helper
 - P2 sends the phrase to the helper
 - P2 gets P1's public IP and port
 - P1 gets P2's public IP and port
 - P1 and P2 disconnect\* from the helper
 - P1 and P2 start a loop (slightly simplified):
  - fire a packet at eachother multiple times
  - try to receive as many packets from the other one
  - if none are received, loop again
  - if one is received, exit the loop
 - Connection between P1 and P2 is established.
 \*UDP is a connection-less protocol, there are no handshakes. The word "connection" is used here as
 an indicator that data will be exchanged between the "connected" parties. The word "disconnect" is used
 here as an indicator that no more data will be exchanged between the "previously connected" parties.
 ## Debunking some myths about P2P networking
 - "True P2P is only possible without a NAT" - [Both my experiments and wikipedia would like to have
  a word about hole punching.](https://en.wikipedia.org/wiki/UDP_hole_punching) The only issue I
  have found are *some* german mobile data providers, but sending large files over mobile data is
  rarely something you'd want to do - and if so, use something like croc or the magic wormhole,
  which aren't purely true P2P.
 - "Croc is P2P as well, why does this exist?" - Croc is not Peer-to-Peer. Croc uses a relay server
  to exchange data between the two clients (unless one of the client has a port-forward set up,
  which is almost never the case). That is Client-to-Server-to-Client, which is *not* really
  Peer-to-Peer. Peer-to-Peer means two clients sending their data directly to eachother, without a
  server. "Peers make a portion of their resources, such as processing power, disk storage or
  network bandwidth, directly available to other network participants, without the need for central
  coordination by servers or stable hosts." -
  [Wikipedia](https://en.wikipedia.org/wiki/Peer-to-peer)
 ## Tips 'n Tricks
 - You can add a number to the end of both of your commands (after the filename) to
  boost transfer speeds (lower = faster), but a too small number might cause unreliability
  due to local network conditions, VPNs, etc (default is 500). This will modify the delay between
  packets sent.
 - You can also add a number *after that*. It will modify packet size, and a higher number here has
  similar effects as a lower one in the previous arg.
 - You can run a helper yourself, as the "helper" mode argument suggests. This helper should simply
  be run on a server which is reachable from all over the web (a cheap VPS will definitely do).
 - Helpers don't **have to** be run on a public server, they work in LAN too, but that way, only
  computers in the same LAN will be able to use them.
 - You can allow streaming (for example when you want to transmit from /dev/stdin) by setting
  the `QFT_STREAM` environmental variable.
 - To use qfts and qftr aliases on linux or mac, run (replacing `(shell)` with your shell name,
  usually bash or zsh):
 ```sh
 echo 'alias qftr="qft receiver tudbut.de:4277"' >> ~/.(shell)rc
 echo 'alias qfts="qft sender tudbut.de:4277"' >> ~/.(shell)rc
 source ~/.(shell)rc
 ```
 ## Cool stuff
 - Files are transferred over UDP, but qft has additional reliability measures in place to avoid
  broken files.
 - Unreliable internet connection? No problem! QFT will simply pause transmission until the
  connection is back! Doesn't work? Check out the "Resume a fully stopped transfer" section!
 - Did you know you can hibernate or suspend your computer while it's transferring and it'll continue
  where it left of, even when only one side is suspended? (Unless your router blocked the port, read 
  the "Resume a fully stopped transfer" section in that case)
 - QFT can withstand heavy ~~weather~~ network conditions: 1000ms ping is just as fast as 10ms ping,
  packet loss/reorder rates of over 10% are tolerated (but can slow speeds down, especially when
  ping is high).
 - It's written in *100% pure Rust*.
 ## Resume a fully stopped transfer
 You most likely won't need this unless the transfer completely died due to a VERY long pause or a
 computer restart, but if you do:
 Stop qft on both ends and start it again with the [skip] parameter in place (if you didn't specify a
 bitrate before, the default is 256). It will skip those bytes and continue where you specified.
 ## Troubleshooting
 ### It says `Connecting...` but doesn't connect
 One of your ends didn't correctly connect to the helper. Stop the transfer on both ends
 and try again.
 ## Croc
 Many people have mentioned how this is like croc. It isn't, because croc uses a relay that all your
 data is sent through. This is a bottleneck and also means that the relay admins are responsible for
 the content that is sent. The relay also buffers a lot of data, meaning its RAM might fill up if the
 sender's connection is much faster than the receiver's. Croc being tagged "peer-to-peer" is
 misleading at best because it rarely uses the P2P capabilities (it requires a port-forward to do
 P2P, which is rarely done). Read the previous section about P2P myths if you think Croc is always
 peer-to-peer.
 ## [Relevant XKCD](https://xkcd.com/949)
 ![Relevant XKCD Image](https://imgs.xkcd.com/comics/file_transfer.png)
 ## FAQ
 #### What is a helper?
 As explained above, it is used to establish the connection between the two partners.
 #### Why is a helper needed?
 Your router uses a thing called **N**etwork **A**ddress **T**ranslation. It is required because
 otherwise, there would be way too many IP addresses in use and the internet would cease to work
 during busy times. This NAT is also a problem however, because it is a layer between your PC and the
 open internet. When there is a new incoming connection, the NAT won't know which PC in your LAN to
 forward the connection to, so the connection is simply rejected. Any Peer-to-Peer software therefore
 needs a helper server (also called "STUN" server) which both peers will ask for the other's IP
 address and port. Both peers can then send a bunch of outgoing connections to eachother. If
 everything goes well, both peers have sent an outgoing with the right timing, causing both NATs to
 *think* they are outgoing connections, when actually, they are a sort of combination of incoming and 
 outgoing ones.
 TL;DR: P2P networking is impossible without a helper server, because of Routers. Port-forwarding
 would be required otherwise, which can be hard to set up.
 #### How to make a public/private helper?
 Read the 2nd bullet point in the Tips 'n Tricks section.
--- a/logo.png
+++ b/logo.png
--- a/src/gui.rs
+++ b/src/gui.rs
@ -0,0 +1,351 @@
 use std::{env, process, thread};
 use iui::{controls::*, *};
 #[derive(Clone)]
 struct RefMut<T> {
    to: *mut T,
 }
 impl<T> RefMut<T> {
    pub fn new(to: &mut T) -> RefMut<T> {
        RefMut { to: to as *mut T }
    }
    pub fn get(&self) -> &mut T {
        unsafe { self.to.as_mut().unwrap() }
    }
 }
 unsafe impl<T> Sync for RefMut<T> {}
 unsafe impl<T> Send for RefMut<T> {}
 #[derive(Clone)]
 struct Ref<T> {
    to: *const T,
 }
 impl<T> Ref<T> {
    pub fn new(to: &T) -> Ref<T> {
        Ref { to: to as *const T }
    }
    pub fn get(&self) -> &T {
        unsafe { self.to.as_ref().unwrap() }
    }
 }
 unsafe impl<T> Sync for Ref<T> {}
 unsafe impl<T> Send for Ref<T> {}
 fn wrap<T: Into<Control>>(ui: &UI, s: &str, c: T) -> Group {
    let mut g = Group::new(ui, s);
    g.set_child(ui, c);
    return g;
 }
 pub fn gui() -> Result<(), iui::UIError> {
    let ui: UI = UI::init()?;
    let mut window = Window::new(&ui, "QFT", 500, 600, WindowType::NoMenubar);
    let mut vbox = VerticalBox::new(&ui);
    vbox.set_padded(&ui, false);
    let mut mode = Combobox::new(&ui);
    let modeb = Ref::new(&mode);
    mode.append(&ui, "Receive");
    mode.append(&ui, "Send");
    mode.set_selected(&ui, 1);
    let mdb = Ref::new(&mode);
    vbox.append(&ui, wrap(&ui, "Mode: ", mode), LayoutStrategy::Compact);
    let mut helper_data = HorizontalBox::new(&ui);
    helper_data.set_padded(&ui, true);
    let mut helper = Entry::new(&ui);
    let helperb = Ref::new(&helper);
    helper.set_value(&ui, "tudbut.de:4277");
    helper_data.append(&ui, helper, LayoutStrategy::Stretchy);
    let mut phrase = Entry::new(&ui);
    let phraseb = Ref::new(&phrase);
    phrase.set_value(
        &ui,
        format!("my-cool-phrase-{}", rand::random::<u16>()).as_str(),
    );
    helper_data.append(&ui, phrase, LayoutStrategy::Stretchy);
    vbox.append(
        &ui,
        wrap(&ui, "Shared Phrase: ", helper_data),
        LayoutStrategy::Compact,
    );
    let mut path = env::current_exe()
        .unwrap()
        .into_os_string()
        .into_string()
        .unwrap();
    let pathb = Ref::new(&path);
    let mut select_path = Button::new(&ui, format!("Select a file ({})", path).as_str());
    let bb = RefMut::new(&mut select_path);
    let pb = RefMut::new(&mut path);
    let wb = Ref::new(&window);
    let uib = Ref::new(&ui);
    select_path.on_clicked(&ui, move |_| {
        let r = if mdb.get().selected(uib.get()) == 0 {
            wb.get()
                .save_file(uib.get())
                .map(|x| x.into_os_string().into_string().unwrap())
        } else {
            wb.get()
                .open_file(uib.get())
                .map(|x| x.into_os_string().into_string().unwrap())
        };
        match r {
            Some(path) => {
                bb.get()
                    .set_text(uib.get(), format!("Select a file ({})", &path).as_str());
                *pb.get() = path;
            }
            None => (),
        }
    });
    vbox.append(
        &ui,
        wrap(&ui, "Path: ", select_path),
        LayoutStrategy::Compact,
    );
    let mut delay = VerticalBox::new(&ui);
    let mut delay_slider = Slider::new(&ui, 100, 3_000);
    let delayb = Ref::new(&delay_slider);
    let mut delay_box = Entry::new(&ui);
    delay_slider.set_value(&ui, 500);
    delay_box.set_value(&ui, "500");
    // We know that ui.main() will wait until the UI is dead, so these are safe.
    let sb = RefMut::new(&mut delay_slider);
    let bb = RefMut::new(&mut delay_box);
    let uib = Ref::new(&ui);
    let uib1 = uib.clone();
    delay_box.on_changed(&ui, move |val| {
        sb.get().set_value(
            uib.get(),
            u16::from_str_radix(val.as_str(), 10).unwrap_or(256) as i32,
        );
    });
    delay_slider.on_changed(&ui, move |val| {
        bb.get().set_value(uib1.get(), val.to_string().as_str());
    });
    delay.set_padded(&ui, true);
    delay.append(&ui, delay_slider, LayoutStrategy::Compact);
    delay.append(&ui, delay_box, LayoutStrategy::Compact);
    vbox.append(
        &ui,
        wrap(
            &ui,
            "Delay in µs: (higher = more reliable, lower = faster)",
            delay,
        ),
        LayoutStrategy::Compact,
    );
    let mut speed = VerticalBox::new(&ui);
    let mut speed_slider = Slider::new(&ui, 100, 3_000);
    let speedb = Ref::new(&speed_slider);
    let mut speed_box = Entry::new(&ui);
    speed_slider.set_value(&ui, 256);
    speed_box.set_value(&ui, "256");
    // We know that ui.main() will wait until the UI is dead, so these are safe.
    let sb = RefMut::new(&mut speed_slider);
    let bb = RefMut::new(&mut speed_box);
    let uib = Ref::new(&ui);
    let uib1 = uib.clone();
    speed_box.on_changed(&ui, move |val| {
        sb.get().set_value(
            uib.get(),
            u16::from_str_radix(val.as_str(), 10).unwrap_or(256) as i32,
        );
    });
    speed_slider.on_changed(&ui, move |val| {
        bb.get().set_value(uib1.get(), val.to_string().as_str());
    });
    speed.set_padded(&ui, true);
    speed.append(&ui, speed_slider, LayoutStrategy::Compact);
    speed.append(&ui, speed_box, LayoutStrategy::Compact);
    vbox.append(
        &ui,
        wrap(
            &ui,
            "Bitrate: (lower = more reliable, higher = faster)",
            speed,
        ),
        LayoutStrategy::Compact,
    );
    let mut skip = Entry::new(&ui);
    let skipb = Ref::new(&skip);
    skip.set_value(&ui, "0");
    vbox.append(
        &ui,
        wrap(&ui, "Resume from: ", skip),
        LayoutStrategy::Compact,
    );
    let mut bar = ProgressBar::new();
    let barb = RefMut::new(&mut bar);
    bar.set_value(&ui, ProgressBarValue::Determinate(0));
    vbox.append(&ui, wrap(&ui, "Progress: ", bar), LayoutStrategy::Compact);
    let mut send_button = Button::new(&ui, "Start");
    let bb = RefMut::new(&mut send_button);
    let uib = Ref::new(&ui);
    send_button.on_clicked(&ui, move |b| {
        b.disable(uib.get());
        let bb = bb.clone();
        let rargs = env::args().collect::<Vec<String>>();
        let mut args = vec![rargs.get(0).unwrap().clone()];
        let a = String::from(match modeb.get().selected(uib.get()) {
            0 => "receiver",
            1 => "sender",
            _ => "version",
        });
        args.push(a);
        let a = helperb.get().value(uib.get());
        args.push(a);
        let a = phraseb.get().value(uib.get());
        args.push(a);
        let a = pathb.get().clone();
        args.push(a);
        if modeb.get().selected(uib.get()) == 1 {
            let a = delayb.get().value(uib.get()).to_string();
            args.push(a);
        }
        let a = speedb.get().value(uib.get()).to_string();
        args.push(a);
        let a = skipb.get().value(uib.get());
        args.push(a);
        match modeb.get().selected(uib.get()) {
            0 => {
                barb.get()
                    .set_value(uib.get(), ProgressBarValue::Indeterminate);
                let uib = uib.clone();
                let barb = barb.clone();
                thread::spawn(move || {
                    let mut last_percentage = -1;
                    let lpb = RefMut::new(&mut last_percentage);
                    let uib1 = uib.clone();
                    let barb1 = barb.clone();
                    crate::receiver(&args, move |f| {
                        let lpb1 = lpb.clone();
                        let uib = uib1.clone();
                        let barb = barb1.clone();
                        uib1.get().queue_main(move || {
                            let percentage = (f * 100 as f32) as i32;
                            if percentage != *lpb1.get() {
                                barb.get().set_value(
                                    uib.get(),
                                    ProgressBarValue::Determinate(percentage as u32),
                                );
                                *lpb1.get() = percentage;
                            }
                        })
                    });
                    let uib1 = uib.clone();
                    let barb1 = barb.clone();
                    uib.get().queue_main(move || {
                        barb1
                            .get()
                            .set_value(uib1.get(), ProgressBarValue::Determinate(100));
                        bb.get().enable(uib1.get());
                    });
                });
            }
            1 => {
                barb.get()
                    .set_value(uib.get(), ProgressBarValue::Indeterminate);
                let uib = uib.clone();
                let barb = barb.clone();
                thread::spawn(move || {
                    let mut last_percentage = -1;
                    let lpb = RefMut::new(&mut last_percentage);
                    let uib1 = uib.clone();
                    let barb1 = barb.clone();
                    crate::sender(&args, move |f| {
                        let lpb1 = lpb.clone();
                        let uib = uib1.clone();
                        let barb = barb1.clone();
                        uib1.get().queue_main(move || {
                            let percentage = (f * 100 as f32) as i32;
                            if percentage != *lpb1.get() {
                                barb.get().set_value(
                                    uib.get(),
                                    ProgressBarValue::Determinate(percentage as u32),
                                );
                                *lpb1.get() = percentage;
                            }
                        })
                    });
                    let uib1 = uib.clone();
                    let barb1 = barb.clone();
                    uib.get().queue_main(move || {
                        barb1
                            .get()
                            .set_value(uib1.get(), ProgressBarValue::Determinate(100));
                        bb.get().enable(uib1.get());
                    });
                });
            }
            _ => panic!("invalid mode"),
        }
    });
    vbox.append(
        &ui,
        wrap(&ui, "Start: ", send_button),
        LayoutStrategy::Compact,
    );
    let uib = Ref::new(&ui);
    window.on_closing(&ui, move |_| {
        let mut quit_window =
            Window::new(uib.get(), "Really quit?", 300, 100, WindowType::NoMenubar);
        let mut vbox = VerticalBox::new(uib.get());
        let label = Label::new(uib.get(), "Do you really want to quit?");
        vbox.append(uib.get(), label, LayoutStrategy::Compact);
        vbox.append(uib.get(), Spacer::new(uib.get()), LayoutStrategy::Stretchy);
        let mut hbox = HorizontalBox::new(uib.get());
        hbox.set_padded(uib.get(), true);
        let mut button1 = Button::new(uib.get(), "Quit");
        let uib1 = uib.clone();
        button1.on_clicked(uib.get(), move |_| {
            uib1.get().quit();
            process::exit(0);
        });
        let mut button2 = Button::new(uib.get(), "Cancel");
        let uib1 = uib.clone();
        // We know button2 won't be destroyed until quit_window is dead, so these are fine
        let qwb = RefMut::new(&mut quit_window);
        button2.on_clicked(uib.get(), move |_| quit_window.hide(uib1.get()));
        let quit_window = qwb.get();
        hbox.append(uib.get(), button1, LayoutStrategy::Stretchy);
        hbox.append(uib.get(), button2, LayoutStrategy::Stretchy);
        vbox.append(uib.get(), hbox, LayoutStrategy::Compact);
        quit_window.set_child(uib.get(), vbox);
        let uib1 = uib.clone();
        quit_window.on_closing(uib.get(), move |w| w.hide(uib1.get()));
        quit_window.show(uib.get());
    });
    window.set_child(&ui, vbox);
    window.show(&ui);
    ui.event_loop().run(&ui);
    println!("GUI done");
    return Ok(());
 }
--- a/src/main.rs
+++ b/src/main.rs
@ -1,95 +1,69 @@
 #[cfg(feature = "gui")]
 mod gui;
 use std::{
-    fs::File,
+    collections::HashMap,
-    io::{Error, Read, Write},
+    env,
    fs::{File, OpenOptions},
    io::{stdout, Error, Read, Seek, SeekFrom, Write},
    net::*,
-    time::Duration,
+    ops::Mul,
    str::FromStr,
    thread,
    time::{Duration, SystemTime},
 };
-trait Ordinal {
+use time::{Date, PrimitiveDateTime, Time};
    fn ordinal(&self) -> isize;
 }
 #[derive(Ord, Eq, PartialOrd, PartialEq)]
 enum SafeReadWritePacket {
-    WRITE,
+    Write,
-    ACK,
+    Ack,
-    END,
+    ResendRequest,
-}
+    End,
 impl Ordinal for SafeReadWritePacket {
    fn ordinal(&self) -> isize {
        match self {
            SafeReadWritePacket::WRITE => 0,
            SafeReadWritePacket::ACK => 1,
            SafeReadWritePacket::END => 2,
        }
    }
 }
 use SafeReadWritePacket::*;
 struct SafeReadWrite {
    socket: UdpSocket,
-    packet_count_out: u8,
+    last_transmitted: HashMap<u16, Vec<u8>>,
-    packet_count_in: u8,
+    packet_count_out: u64,
    packet_count_in: u64,
 }
 struct Wrap<T>(T);
 impl Mul<Wrap<&str>> for u64 {
    type Output = String;
    fn mul(self, rhs: Wrap<&str>) -> Self::Output {
        let strings: Vec<&str> = (0..self).map(|_| rhs.0).collect();
        strings.join("")
    }
 }
 impl SafeReadWrite {
    pub fn new(socket: UdpSocket) -> SafeReadWrite {
        SafeReadWrite {
            socket,
            last_transmitted: HashMap::new(),
            packet_count_in: 0,
            packet_count_out: 0,
        }
    }
-    pub fn write_safe(&mut self, buf: &[u8]) -> Result<(), Error> {
+    pub fn write_safe(&mut self, buf: &[u8], delay: u64) -> Result<(), Error> {
-        if buf.len() > 0xfffd {
+        self.write_flush_safe(buf, false, delay)
-            panic!(
+    }
                "too large data packet sent over SafeReadWrite ({} > 0xfffd)",
                buf.len()
            );
        }
-        let id = self.packet_count_out;
+    pub fn write_flush_safe(&mut self, buf: &[u8], flush: bool, delay: u64) -> Result<(), Error> {
-        self.packet_count_out += 1;
+        self.internal_write_safe(buf, Write, flush, false, delay)
        let mut buf = Vec::from(buf);
        buf.insert(0, SafeReadWritePacket::WRITE.ordinal() as u8);
        buf.insert(0, id);
        let buf = buf.as_slice();
        self.socket
            .set_read_timeout(Some(Duration::from_secs(1)))
            .expect("cannot set_read_timeout");
        let mut resend = true;
        while resend {
            match self.socket.send(buf) {
                Ok(x) => {
                    if x != buf.len() {
                        panic!("bad buf length")
                    }
                }
                Err(x) => return Err(x),
            }
            let mut buf = [0, 0];
            match self.socket.recv(&mut buf).ok() {
                Some(x) => {
                    if x == 0 {
                        continue;
                    }
                    if buf[1] == SafeReadWritePacket::ACK.ordinal() as u8 && buf[0] == id {
                        resend = false;
                    }
                }
                None => {}
            }
        }
        return Ok(());
    }
    pub fn read_safe(&mut self, buf: &[u8]) -> Result<(Vec<u8>, usize), Error> {
-        if buf.len() > 0xfffd {
+        if buf.len() > 0xfffc {
            panic!(
-                "attempted to receive too large data packet with SafeReadWrite ({} > 0xfffd)",
+                "attempted to receive too large data packet with SafeReadWrite ({} > 0xfffc)",
                buf.len()
            );
        }
@ -97,203 +71,577 @@ impl SafeReadWrite {
        let mut mbuf = Vec::from(buf);
        mbuf.insert(0, 0);
        mbuf.insert(0, 0);
        mbuf.insert(0, 0);
        let buf: &mut [u8] = mbuf.as_mut();
        let mut r = (vec![], 0);
        let mut try_again = true;
        let mut is_catching_up = false;
        while try_again {
            match self.socket.recv(buf) {
                Ok(x) => {
-                    if x == 0 {
+                    if x < 3 {
                        continue;
                    }
-                    if buf[0] <= self.packet_count_in {
+                    let id = u16::from_be_bytes([buf[0], buf[1]]);
                    if id <= self.packet_count_in as u16 {
                        self.socket
-                            .send(&[buf[0], SafeReadWritePacket::ACK.ordinal() as u8])
+                            .send(&[buf[0], buf[1], Ack as u8])
                            .expect("send error");
                    }
-                    if buf[0] == self.packet_count_in {
+                    if id == self.packet_count_in as u16 {
                        if id == 0xffff {
                            println!("\nPacket ID wrap successful.");
                        }
                        try_again = false;
                        self.packet_count_in += 1;
-                        r.1 = x - 2;
+                        r.1 = x - 3;
                    } else if id > self.packet_count_in as u16
                        && (id - self.packet_count_in as u16) < 0xC000
                    {
                        if !is_catching_up && !env::var("QFT_HIDE_DROPS").is_ok() {
                            println!(
                                "\r\x1b[KA packet dropped: {} (got) is newer than {} (expected)",
                                &id,
                                &(self.packet_count_in as u16)
                            );
                        }
                        is_catching_up = true;
                        // ask to resend, then do nothing
                        let id = (self.packet_count_in as u16).to_be_bytes();
                        self.socket
                            .send(&[id[0], id[1], ResendRequest as u8])
                            .expect("send error");
                    }
-                    if buf[0] > self.packet_count_in {
+                    if buf[2] == End as u8 {
                        panic!("illegal packet id {} > {}", buf[0], self.packet_count_in);
                    }
                    if buf[1] == SafeReadWritePacket::END.ordinal() as u8 {
                        return Ok((vec![], 0));
                    }
                }
-                Err(x) => return Err(x),
+                Err(_) => {}
            }
        }
        mbuf.remove(0);
        mbuf.remove(0);
        mbuf.remove(0);
        r.0 = mbuf;
        return Ok(r);
    }
    pub fn end(mut self) -> UdpSocket {
-        let id = self.packet_count_out;
+        let _ = self.internal_write_safe(&mut [], End, true, true, 3000);
        self.packet_count_out += 1;
        let mut buf = vec![];
        buf.insert(0, SafeReadWritePacket::END.ordinal() as u8);
        buf.insert(0, id);
        let buf = buf.as_slice();
        self.socket
-            .set_read_timeout(Some(Duration::from_secs(1)))
+    }
            .expect("cannot set_read_timeout");
-        let mut resend = true;
+    fn internal_write_safe(
-        while resend {
+        &mut self,
        buf: &[u8],
        packet: SafeReadWritePacket,
        flush: bool,
        exit_on_lost: bool,
        delay: u64,
    ) -> Result<(), Error> {
        if buf.len() > 0xfffc {
            panic!(
                "too large data packet sent over SafeReadWrite ({} > 0xfffc)",
                buf.len()
            );
        }
        let id = (self.packet_count_out as u16).to_be_bytes();
        let idn = self.packet_count_out as u16;
        self.packet_count_out += 1;
        let mut vbuf = Vec::from(buf);
        vbuf.insert(0, packet as u8);
        vbuf.insert(0, id[1]);
        vbuf.insert(0, id[0]); // this is now the first byte
        let buf = vbuf.as_slice();
        loop {
            match self.socket.send(buf) {
                Ok(x) => {
                    if x != buf.len() {
                        panic!("internet down")
                    }
                }
                Err(_) => return self.socket,
            }
            let mut buf = [0, 0];
            match self.socket.recv(&mut buf).ok() {
                Some(x) => {
                    if x == 0 {
                        continue;
                    }
-                    if buf[1] == SafeReadWritePacket::ACK.ordinal() as u8 && buf[0] == id {
+                }
-                        resend = false;
+                Err(_) => {
                    continue;
                }
            }
            thread::sleep(Duration::from_micros(delay));
            self.last_transmitted.insert(idn, vbuf);
            break;
        }
        let mut buf = [0, 0, 0];
        let mut wait = idn == 0xffff || flush;
        if self.last_transmitted.len() < 256 {
            self.socket
                .set_read_timeout(Some(Duration::from_millis(1)))
                .unwrap();
        } else {
            wait = true;
        }
        let mut start = unix_millis();
        if idn == 0xffff {
            print!("\nPacket ID needs to wrap. Waiting for partner to catch up...")
        }
        let mut is_catching_up = false;
        loop {
            match (
                if !wait {
                    self.socket.set_nonblocking(true).unwrap()
                } else {
                    ()
                },
                self.socket.recv(&mut buf).ok(),
                self.socket.set_nonblocking(false).unwrap(),
            )
                .1
            {
                Some(x) => {
                    if x != 3 {
                        continue;
                    }
                    if buf[2] == Ack as u8 {
                        let n = u16::from_be_bytes([buf[0], buf[1]]);
                        self.last_transmitted.remove(&n);
                        if n == idn {
                            if idn == 0xffff {
                                println!("\r\x1b[KPacket ID wrap successful.");
                            }
                            wait = false;
                            self.last_transmitted.clear(); // if the latest packet is ACK'd, all
                                                           // previous ones must be as well.
                        }
                    }
                    if buf[2] == ResendRequest as u8 {
                        let mut n = u16::from_be_bytes([buf[0], buf[1]]);
                        thread::sleep(Duration::from_millis(100));
                        while let Some(_) = self.socket.recv(&mut buf).ok() {}
                        if !is_catching_up && !env::var("QFT_HIDE_DROPS").is_ok() {
                            println!("\r\x1b[KA packet dropped: {}", &n);
                        }
                        if !is_catching_up {
                            wait = true;
                            is_catching_up = true;
                            while n <= idn && !(idn == 0xffff && n == 0) {
                                let buf = self.last_transmitted.get(&n);
                                if let Some(buf) = buf {
                                    loop {
                                        // resend until success
                                        match self.socket.send(&buf.as_slice()) {
                                            Ok(x) => {
                                                if x != buf.len() {
                                                    continue;
                                                }
                                            }
                                            Err(_) => {
                                                continue;
                                            }
                                        };
                                        thread::sleep(Duration::from_millis(4));
                                        break;
                                    }
                                } else {
                                    break;
                                }
                                // do NOT remove from last_transmitted yet, wait for Ack to do that.
                                n += 1;
                            }
                        }
                    }
                }
                None => {
                    if unix_millis() - start > 5000 && exit_on_lost {
                        break;
                    }
                    if unix_millis() - start > 10000 {
                        println!("\n10s passed since last packet ==> Contact broke. Trying to resend packet...");
                        if let Some(buf) = self.last_transmitted.get(&idn) {
                            loop {
                                match self.socket.send(buf) {
                                    Ok(x) => {
                                        if x != buf.len() {
                                            continue;
                                        }
                                    }
                                    Err(_) => {
                                        continue;
                                    }
                                }
                                thread::sleep(Duration::from_millis(4));
                                break;
                            }
                            start = unix_millis();
                        } else {
                            break; // Latest packet was already ACK'd ==> No packets properly lost ==> Can continue with next packet.
                        }
                    }
                    if !wait {
                        break;
                    }
                }
                None => {}
            }
        }
        self.socket
            .set_read_timeout(Some(Duration::from_millis(1000)))
            .unwrap();
        return Ok(());
    }
 }
 fn main() {
    let args: Vec<String> = std::env::args().collect();
-    if args.len() <= 1 {
+    if args.len() == 0 {
-        print_args(&args);
+        panic!("no args");
    }
    if args.len() == 1 {
        #[cfg(feature = "gui")]
        match gui::gui() {
            Ok(_) => (),
            Err(_) => print_args(&args),
        }
        #[cfg(not(feature = "gui"))]
        print_args(&args)
    }
    match args
        .get(1)
-        .expect("no args supplied, check if the first arg is truly the program name")
+        .unwrap() // checked in previous if-statement
        .as_str()
    {
        "helper" => helper(&args),
-        "sender" => sender(&args),
+        "sender" => sender(&args, |_| {}),
-        "receiver" => receiver(&args),
+        "receiver" => receiver(&args, |_| {}),
        #[cfg(feature = "gui")]
        "gui" => gui::gui().expect("can't use gui"),
        #[cfg(not(feature = "gui"))]
        "gui" => println!("Feature 'gui' was not enabled during compilation. GUI not available."),
        "version" => println!("QFT version: {}", env!("CARGO_PKG_VERSION")),
        _ => print_args(&args),
    }
 }
-fn helper(args: &Vec<String>) {
+pub fn helper(args: &Vec<String>) {
    let bind_addr = (
        "0.0.0.0",
        u16::from_str_radix(args[2].as_str(), 10).expect("invalid port: must be integer"),
    );
    let mut map: HashMap<[u8; 200], SocketAddr> = HashMap::new();
    let listener = UdpSocket::bind(&bind_addr).expect("unable to create socket");
-    let mut buf = [0 as u8];
+    let mut buf = [0 as u8; 200];
    let mut last_log_time = unix_millis();
    let mut amount_since_log = 0;
    let mut helper_log = OpenOptions::new()
        .create(true)
        .write(true)
        .append(true)
        .open("qft_helper_log.txt")
        .expect("unable to create helper log");
    loop {
-        let (_, addr) = listener.recv_from(&mut buf).expect("read error");
+        let (l, addr) = listener.recv_from(&mut buf).expect("read error");
-        // we got a connection
+        if l != 200 {
-        if listener.send_to(&addr.port().to_be_bytes(), addr).is_ok() {
+            continue;
            // success!
            println!("Helped {}! :D", addr);
        }
-    }
+        if map.contains_key(&buf) {
-}
+            let other = map.get(&buf).unwrap();
-
+            // we got a connection
-fn sender(args: &Vec<String>) {
+            let mut bytes: &[u8] = addr.to_string().bytes().collect::<Vec<u8>>().leak();
-    let mut bind_addr = ("0.0.0.0", 0);
+            let mut addr_buf = [0 as u8; 200];
-    {
+            for i in 0..bytes.len().min(200) {
-        let holepunch = UdpSocket::bind(&bind_addr).expect("unable to create socket");
+                addr_buf[i] = bytes[i];
        let mut buf = [0 as u8; 2];
        holepunch
            .connect(args.get(2).unwrap_or_else(|| {
                print_args(args);
                panic!("unreachable")
            }))
            .expect("unable to connect to helper");
        holepunch.send(&[0]).expect("unable to talk to helper");
        holepunch
            .recv(&mut buf)
            .expect("unable to receive from helper");
        // buf should now contain our port.
        bind_addr = ("0.0.0.0", u16::from_be_bytes(buf));
        println!("Holepunch successful. Running on port {}.", bind_addr.1);
    }
    // we have the needed bind_addr and did the holepunch
    {
        let connection = UdpSocket::bind(&bind_addr).expect("unable to create send socket");
        let mut buf = [0 as u8; 256];
        let mut file = File::open(args.get(3).unwrap_or_else(|| {
            print_args(args);
            panic!("unreachable")
        }))
        .expect("file not readable");
        connection
            .connect(connection.recv_from(&mut buf).expect("connect error").1)
            .expect("connect error");
        let mut sc = SafeReadWrite::new(connection);
        loop {
            let read = file.read(&mut buf).expect("file read error");
            if read == 0 {
                println!("Transfer done. Thank you!");
                sc.end();
                return;
            }
-
+            bytes = other.to_string().bytes().collect::<Vec<u8>>().leak();
-            sc.write_safe(&buf[..read]).expect("send error");
+            let mut other_buf = [0 as u8; 200];
-            println!("Sent {} bytes", read);
+            for i in 0..bytes.len().min(200) {
                other_buf[i] = bytes[i];
            }
            if listener.send_to(&addr_buf, other).is_ok()
                && listener.send_to(&other_buf, addr).is_ok()
            {
                // success!
                println!("Helped {} and {}! :D", addr, other);
                amount_since_log += 1;
                if unix_millis() - last_log_time > 10000 {
                    let d = PrimitiveDateTime::new(
                        Date::from_calendar_date(1970, time::Month::January, 1).unwrap(),
                        Time::MIDNIGHT,
                    ) + Duration::from_millis(unix_millis());
                    helper_log
                        .write(
                            format!(
                                "{} | {} {}>\n",
                                d,
                                amount_since_log,
                                amount_since_log * Wrap("=")
                            )
                            .as_bytes(),
                        )
                        .expect("error writing to log");
                    helper_log.flush().expect("error writing to log");
                    last_log_time = unix_millis();
                    amount_since_log = 0;
                }
            }
            map.remove(&buf);
        } else {
            map.insert(buf, addr);
        }
    }
 }
-fn receiver(args: &Vec<String>) {
+pub fn sender<F: Fn(f32)>(args: &Vec<String>, on_progress: F) {
-    let connection = UdpSocket::bind(("0.0.0.0", 0)).expect("unable to create receive socket");
+    let connection = holepunch(args);
-    let mut buf: &[u8] = &[0 as u8; 256];
+    let dly = args
-    let mut file = File::create(args.get(3).unwrap_or_else(|| {
+        .get(5)
        .map(|s| u64::from_str_radix(s, 10))
        .unwrap_or(Ok(500))
        .expect("bad delay operand");
    let br = args
        .get(6)
        .map(|s| u32::from_str_radix(s, 10))
        .unwrap_or(Ok(256))
        .expect("bad bitrate argument");
    let begin = args
        .get(7)
        .map(|s| u64::from_str_radix(s, 10))
        .unwrap_or(Ok(0))
        .expect("bad begin operand");
    let mut buf: Vec<u8> = Vec::new();
    buf.resize(br as usize, 0);
    let mut buf = buf.leak();
    let mut file = File::open(args.get(4).unwrap_or_else(|| {
        print_args(args);
        panic!("unreachable")
    }))
-    .expect("file not writable");
+    .expect("file not readable");
-    connection
+
-        .connect(args.get(2).unwrap_or_else(|| {
+    if begin != 0 {
        println!("Skipping to {}...", begin);
        file.seek(SeekFrom::Start(begin)).expect("unable to skip");
        println!("Done.");
    }
    let mut sc = SafeReadWrite::new(connection);
    let mut bytes_sent: u64 = 0;
    let mut last_update = unix_millis();
    let len = file.metadata().expect("bad metadata").len();
    sc.write_safe(&len.to_be_bytes(), 3000)
        .expect("unable to send file length");
    println!("Length: {}", &len);
    let mut time = unix_millis();
    loop {
        let read = file.read(&mut buf).expect("file read error");
        if read == 0 && !env::var("QFT_STREAM").is_ok() {
            println!();
            println!("Transfer done. Thank you!");
            sc.end();
            return;
        }
        sc.write_safe(&buf[..read], dly).expect("send error");
        bytes_sent += read as u64;
        if (bytes_sent % (br * 20) as u64) < (br as u64) {
            let elapsed = unix_millis() - time;
            let elapsed = if elapsed == 0 { 1 } else { elapsed };
            print!(
                "\r\x1b[KSent {} bytes; Speed: {} kb/s",
                bytes_sent,
                br as usize * 20 / elapsed as usize
            );
            stdout().flush().unwrap();
            time = unix_millis();
        }
        if unix_millis() - last_update > 100 {
            on_progress((bytes_sent + begin) as f32 / len as f32);
            last_update = unix_millis();
        }
    }
 }
 pub fn receiver<F: Fn(f32)>(args: &Vec<String>, on_progress: F) {
    let connection = holepunch(args);
    let br = args
        .get(5)
        .map(|s| u32::from_str_radix(s, 10))
        .unwrap_or(Ok(256))
        .expect("bad bitrate argument");
    let begin = args
        .get(6)
        .map(|s| u64::from_str_radix(s, 10))
        .unwrap_or(Ok(0))
        .expect("bad begin operand");
    let mut buf: Vec<u8> = Vec::new();
    buf.resize(br as usize, 0);
    let buf: &[u8] = buf.leak();
    let mut file = OpenOptions::new()
        .truncate(false)
        .write(true)
        .create(true)
        .open(&args.get(4).unwrap_or_else(|| {
            print_args(args);
            panic!("unreachable")
        }))
-        .expect("unable to connect");
+        .expect("file not writable");
-    connection.send(&[0]).expect("connect write error");
+
    if begin != 0 {
        println!("Skipping to {}...", begin);
        file.seek(SeekFrom::Start(begin)).expect("unable to skip");
        println!("Done.");
    }
    let mut sc = SafeReadWrite::new(connection);
    let mut bytes_received: u64 = 0;
    let mut last_update = unix_millis();
    let mut len_bytes = [0 as u8; 8];
    let len = sc
        .read_safe(&mut len_bytes)
        .expect("unable to read length from sender")
        .0;
    let len = u64::from_be_bytes([
        len[0], len[1], len[2], len[3], len[4], len[5], len[6], len[7],
    ]);
    let _ = file.set_len(len);
    println!("Length: {}", &len);
    let mut time = unix_millis();
    loop {
-        let (mbuf, len) = sc.read_safe(buf).expect("read error");
+        let (mbuf, amount) = sc.read_safe(buf).expect("read error");
-        buf = &mbuf.leak()[..len];
+        let buf = &mbuf.leak()[..amount];
-        if len == 0 {
+        if amount == 0 {
            println!();
            println!("Transfer done. Thank you!");
            return;
        }
        file.write(buf).expect("write error");
-        println!("Received {} bytes", len);
+        file.flush().expect("file flush error");
        bytes_received += amount as u64;
        if (bytes_received % (br * 20) as u64) < (br as u64) {
            let elapsed = unix_millis() - time;
            let elapsed = if elapsed == 0 { 1 } else { elapsed };
            print!(
                "\r\x1b[KReceived {} bytes; Speed: {} kb/s",
                bytes_received,
                br as usize * 20 / elapsed as usize
            );
            stdout().flush().unwrap();
            time = unix_millis();
        }
        if unix_millis() - last_update > 100 {
            on_progress((bytes_received + begin) as f32 / len as f32);
            last_update = unix_millis();
        }
    }
 }
 fn holepunch(args: &Vec<String>) -> UdpSocket {
    let bind_addr = (Ipv4Addr::from(0 as u32), 0);
    let holepunch = UdpSocket::bind(&bind_addr).expect("unable to create socket");
    holepunch
        .connect(args.get(2).unwrap_or_else(|| {
            print_args(args);
            panic!("unreachable")
        }))
        .expect("unable to connect to helper");
    let bytes = args
        .get(3)
        .unwrap_or_else(|| {
            print_args(args);
            panic!("unreachable")
        })
        .as_bytes();
    let mut buf = [0 as u8; 200];
    for i in 0..bytes.len().min(200) {
        buf[i] = bytes[i];
    }
    holepunch.send(&buf).expect("unable to talk to helper");
    holepunch
        .recv(&mut buf)
        .expect("unable to receive from helper");
    // buf should now contain our partner's address data.
    let mut s = Vec::from(buf);
    s.retain(|e| *e != 0);
    let bind_addr = String::from_utf8_lossy(s.as_slice()).to_string();
    println!(
        "Holepunching {} (partner) and :{} (you).",
        bind_addr,
        holepunch.local_addr().unwrap().port()
    );
    holepunch
        .connect(SocketAddrV4::from_str(bind_addr.as_str()).unwrap())
        .expect("connection failed");
    holepunch
        .set_read_timeout(Some(Duration::from_secs(1)))
        .unwrap();
    holepunch
        .set_write_timeout(Some(Duration::from_secs(1)))
        .unwrap();
    if env::var("QFT_USE_TIMED_HOLEPUNCH").is_ok() {
        println!("Warning: You are using the QFT_USE_TIMED_HOLEPUNCH environment variable. This won't allow for more \
            backwards-compatibility, rather it only exists as a fallback for bad connections. Please make absolutely \
            sure your partner uses QFT_USE_TIMED_HOLEPUNCH as well, data might otherwise get corrupted on the receiver.");
        println!("Waiting...");
        let mut stop = false;
        while !stop {
            thread::sleep(Duration::from_millis(500 - (unix_millis() % 500)));
            println!("CONNECT {}", unix_millis());
            let _ = holepunch.send(&[0]);
            let result = holepunch.recv(&mut [0, 0]);
            if result.is_ok() && result.unwrap() == 1 {
                holepunch.send(&[0, 0]).expect("connection failed");
                let result = holepunch.recv(&mut [0, 0]);
                if result.is_ok() && result.unwrap() == 2 {
                    stop = true;
                }
            }
        }
    } else {
        println!("Connecting...");
        thread::sleep(Duration::from_millis(500 - (unix_millis() % 500)));
        for _ in 0..40 {
            let m = unix_millis();
            let _ = holepunch.send(&[0]);
            thread::sleep(Duration::from_millis((50 - (unix_millis() - m)).max(0)));
        }
        let mut result = Ok(1);
        while result.is_ok() && result.unwrap() == 1 {
            result = holepunch.recv(&mut [0, 0]);
        }
        holepunch.send(&[0, 0]).expect("connection failed");
        holepunch.send(&[0, 0]).expect("connection failed");
        result = Ok(1);
        while result.is_ok() && result.unwrap() != 2 {
            result = holepunch.recv(&mut [0, 0]);
        }
        result = Ok(1);
        while result.is_ok() && result.unwrap() == 2 {
            result = holepunch.recv(&mut [0, 0]);
        }
    }
    println!("Holepunch and connection successful.");
    return holepunch;
 }
 fn print_args(args: &Vec<String>) {
    let f = args.get(0).unwrap();
    println!(
        "No arguments. Needed: \n\
         | {} helper <bind-port>\n\
-         | {} sender <helper-address>:<helper-port> <filename>\n\
+         | {} sender <helper-address>:<helper-port> <phrase> <filename> [send-dly] [bitrate] [skip]\n\
-         | {} receiver <sender-address>:<sender-port> <filename>",
+         | {} receiver <helper-address>:<helper-port> <phrase> <filename> [bitrate] [skip]\n\
-        f, f, f
+         | {} gui\n\
         | {} version\n",
        f, f, f, f, f
    );
    panic!("No arguments");
 }
 pub fn unix_millis() -> u64 {
    SystemTime::now()
        .duration_since(SystemTime::UNIX_EPOCH)
        .unwrap()
        .as_millis() as u64
 }
Author	SHA1	Message	Date
TudbuT	578fdb0c1b	fix gui issue with receiver	2023-08-19 18:46:26 +02:00
TudbuT	61903d6140	readme update	2023-08-19 16:37:10 +02:00
TudbuT	bc28d99f87	specifiy iui fallback version	2023-08-19 16:31:48 +02:00
TudbuT	a0989bdc73	add delay option	2023-08-19 16:30:50 +02:00
TudbuT	9b7577ce65	migrate gui to a feature flag, drastically speed up send times	2023-08-19 16:14:35 +02:00
TudbuT	69081acc51	fix stdio	2023-03-02 18:00:55 +01:00
Daniel H	a10ebcd10c	Update README.md	2022-11-15 14:26:14 +01:00
TudbuT	74fc62483b	lockfile thing	2022-10-28 14:14:37 +02:00
TudbuT	f2d49809ac	version bump	2022-10-28 14:07:03 +02:00
TudbuT	7766698c68	fix a x/0 crash	2022-10-28 14:06:29 +02:00
TudbuT	0d34f49564	bump version	2022-10-03 18:59:57 +02:00
TudbuT	783116217d	Merge branch 'main' of github.com:TudbuT/qft	2022-10-03 18:48:21 +02:00
TudbuT	c8074ef4b6	better style	2022-10-03 18:48:18 +02:00
Daniel H	29fbb2de67	Merge pull request #5 from amatgil/main Speed indicator	2022-10-03 18:44:30 +02:00
amatgil	15c4327c85	Should be working correctly :))	2022-10-03 18:22:03 +02:00
amatgil	93d5806e49	Attempted to add speed indicator on both sender and receiver (untested)	2022-10-03 00:56:32 +02:00
TudbuT	f5caf49c92	Merge branch 'main' of github.com:TudbuT/qft	2022-09-06 18:04:24 +02:00
TudbuT	5347a60057	remove unused code	2022-09-06 18:04:14 +02:00
Daniel H	934a86d5b7	Update COPYING	2022-09-01 21:18:12 +02:00
TudbuT	2dc6b3343e	Merge branch 'main' of github.com:TudbuT/qft	2022-08-27 18:12:52 +02:00
TudbuT	7e7d922129	add a helper log	2022-08-27 18:10:13 +02:00
Daniel H	56fa241fe4	Create COPYING	2022-08-24 12:39:29 +02:00
Daniel H	ecd9646f59	Change license to GPLv3	2022-08-24 12:37:58 +02:00
Daniel H	3ef64b6903	Update README.md	2022-08-24 10:48:52 +02:00
TudbuT	40aa548781	dont replace the printed amount of bytes sent/received on each wrap	2022-08-24 10:00:53 +02:00
TudbuT	22aefed03a	dont replace the printed amount of bytes sent/received on each wrap	2022-08-23 13:32:51 +02:00
TudbuT	2a675aa9d5	fix a rare connection glitch	2022-08-23 10:06:09 +02:00
TudbuT	bd3e770a0d	make loading bar start as soon as connection is established	2022-08-23 09:51:39 +02:00
TudbuT	ba9003a88c	increase resend-buffer size	2022-08-21 22:21:32 +02:00
TudbuT	7c5f42916a	fix a few connection reliability issues	2022-08-21 21:55:32 +02:00
TudbuT	a7b28c1bc9	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 20:38:33 +02:00
TudbuT	8de978608d	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 20:38:27 +02:00
TudbuT	c72485f363	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 20:36:53 +02:00
TudbuT	c02b5efdb2	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 20:36:38 +02:00
TudbuT	df01da5ba1	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 20:25:25 +02:00
TudbuT	1ebc3b4911	make gui open whenever no args are supplied	2022-08-21 20:24:59 +02:00
TudbuT	12728a4f17	make gui open whenever no args are supplied	2022-08-21 20:03:43 +02:00
TudbuT	e4ff6329ec	add working progress bar to receiver (breaks compatibility with 0.4)	2022-08-21 18:58:37 +02:00
TudbuT	ac3063c9d3	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 15:04:18 +02:00
TudbuT	1c0e2a500a	delete gh-actions	2022-08-21 15:04:10 +02:00
Daniel H	e13c0dcba2	Update README.md	2022-08-21 14:54:56 +02:00
TudbuT	8b97d67ba4	attempt to fix gh-actions	2022-08-21 14:34:28 +02:00
TudbuT	b3478e58b0	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 14:33:48 +02:00
TudbuT	0351b5e214	attempt to fix github actions	2022-08-21 14:33:31 +02:00
TudbuT	c15d53ce35	Merge branch 'main' of github.com:tudbut/qft	2022-08-21 14:31:31 +02:00
TudbuT	f149e5f8f5	attempt to fix github actions	2022-08-21 14:31:13 +02:00
TudbuT	86faa0659a	attempt to fix github actions	2022-08-21 14:12:30 +02:00
TudbuT	fd4f13e4a7	add a GUI	2022-08-21 14:10:10 +02:00
TudbuT	7dc768776e	attempt to fix github-actions	2022-08-21 14:09:07 +02:00
Daniel H	b8f5a83af5	Create rust.yml	2022-08-21 14:02:04 +02:00
TudbuT	b3933dd478	even better reliability	2022-08-20 18:55:24 +02:00
TudbuT	7a182731d3	FAQ section added	2022-08-20 18:22:56 +02:00
TudbuT	47114cd91d	add more info on reliability to readme	2022-08-20 11:07:22 +02:00
TudbuT	74865e30d5	add QFT_HIDE_DROPS environment variable	2022-08-20 11:01:46 +02:00
TudbuT	aa35f1bbe8	qft can now withstand loss=2% delay=500ms corrupt=2% duplicate=5% reorder=5% without losing connection, and it can get the same speed with 20ms ping and 1000ms ping	2022-08-20 10:44:59 +02:00
TudbuT	761831460f	add warning about QFT_USE_TIMED_HOLEPUNCH	2022-08-20 10:07:46 +02:00
TudbuT	49a1782b11	update readme	2022-08-19 12:02:31 +02:00
TudbuT	08890a7ece	less offensive tone about croc	2022-08-19 09:33:58 +02:00
TudbuT	cb7e4e85dc	improve code quality	2022-08-18 00:24:46 +02:00
TudbuT	7afef789fc	unify end() and write_safe() into internal_write_safe()	2022-08-18 00:10:42 +02:00
TudbuT	0b75ce13ba	fix the maximum packet size in readme	2022-08-17 22:15:55 +02:00
TudbuT	90b8cd023b	fix a typo in readme	2022-08-17 22:12:29 +02:00
TudbuT	8a4d8b4e94	fix a lot of packet id wrap-related issues	2022-08-17 21:36:24 +02:00
TudbuT	a09c2198d9	add mention of the single NAT i have found issues with	2022-08-17 19:08:22 +02:00
TudbuT	fe13a3a4ca	add clarification on what peer to peer means	2022-08-17 18:56:43 +02:00
TudbuT	d019906d6d	add mention of croc's peer-to-peer tag	2022-08-17 09:10:12 +02:00
TudbuT	a159a2b84b	add mention of croc	2022-08-17 09:05:22 +02:00
TudbuT	3c34497229	add tip about streaming to readme	2022-08-16 14:11:23 +02:00
TudbuT	ea3316b270	add streaming	2022-08-16 14:09:18 +02:00
TudbuT	3bb3bec5d3	fix a bug where transfer would slow down after a while on unreliable connections	2022-08-16 13:42:26 +02:00
TudbuT	e63fefe182	better catchup mechanism	2022-08-16 12:38:01 +02:00
TudbuT	b75a385e70	implement more parts of TCP to improve connection speed	2022-08-16 09:20:34 +02:00
TudbuT	3522d0ffa7	fix a few connection issues	2022-08-15 23:49:32 +02:00
TudbuT	02e3a8fd86	add a 'if a friend sent you' section to the readme	2022-08-15 22:01:50 +02:00
TudbuT	84accf9a2d	improve readability of 3rd point in cool stuff section in readme	2022-08-15 21:53:59 +02:00
TudbuT	921b959f14	improve holepunching drastically	2022-08-15 21:21:01 +02:00
TudbuT	5b1f0ec982	add lan helpers to tips	2022-08-15 18:58:52 +02:00
TudbuT	d612646d23	show max bitrate in readme	2022-08-15 18:55:25 +02:00
TudbuT	69f1200cad	more clarification on helpers	2022-08-15 18:50:11 +02:00
TudbuT	f1d8526baa	fix a typo	2022-08-15 18:48:14 +02:00
TudbuT	83ff73e793	add explaination of what helpers are for	2022-08-15 18:47:14 +02:00
TudbuT	7538883511	add pure rust to cool stuff section	2022-08-15 18:31:55 +02:00
TudbuT	b8f1284cdc	embed relevant xkcd	2022-08-15 18:28:17 +02:00
TudbuT	841eb76210	add relevant XKCD	2022-08-15 18:26:21 +02:00
Daniel H	620309d64a	Update README.md	2022-08-15 15:17:31 +02:00
TudbuT	5d3759d2f0	bump version	2022-08-15 14:48:11 +02:00
TudbuT	504097f1c8	improve tips and tricks	2022-08-15 14:41:46 +02:00
TudbuT	eeb074117c	clarify some errors	2022-08-15 14:22:17 +02:00
TudbuT	071ace4f4a	add exact Ord and Eq to derivations on SafeReadWritePacket	2022-08-15 14:10:18 +02:00
TudbuT	b6b782bd1d	use drived Ord instead of custom ordinal trait	2022-08-15 14:04:22 +02:00
TudbuT	5c14ed53ac	fix a typo in readme	2022-08-15 13:12:47 +02:00
TudbuT	92ca9d8f72	Merge branch 'main' of github.com:tudbut/qft	2022-08-15 13:11:55 +02:00
TudbuT	d7fe8dde9e	add more sections to readme	2022-08-15 13:10:59 +02:00
Daniel H	24785e44d6	Create LICENSE	2022-08-15 12:47:26 +02:00
TudbuT	7f943f241b	update readme	2022-08-15 12:26:07 +02:00
TudbuT	8ff073fd8a	update readme	2022-08-15 12:14:06 +02:00
TudbuT	a3570de65e	better code formatting	2022-08-15 12:01:47 +02:00
TudbuT	b4295c14ca	fix write panic	2022-08-14 23:39:37 +02:00
TudbuT	8aa7fe2129	allow resuming writes	2022-08-14 23:27:17 +02:00
Daniel H	300e558df2	Update README.md	2022-08-14 20:31:37 +02:00
Daniel H	d1816d5f8c	Update README.md	2022-08-14 20:28:03 +02:00
TudbuT	94350c46f0	fix receiver ping display	2022-08-14 18:39:48 +02:00
TudbuT	79670a6f9c	better ping printing	2022-08-14 16:40:11 +02:00
TudbuT	97b8129002	print ping	2022-08-14 13:58:39 +02:00
TudbuT	fa40f2f932	add logo	2022-08-14 12:04:23 +02:00
TudbuT	d09443ac47	fix a few connection issues	2022-08-14 11:45:30 +02:00
TudbuT	adb7042e35	fix a few bad disconnects	2022-08-13 18:56:34 +02:00
TudbuT	629228d365	better progress display	2022-08-13 17:37:57 +02:00
TudbuT	9e8ec4db3c	fix lockup during holepunch	2022-08-13 17:03:42 +02:00
Daniel H	775aa5add8	Create README.md	2022-08-13 12:29:47 +02:00
TudbuT	73eba2a0d6	add option to select bitrate	2022-08-13 04:06:42 +02:00
TudbuT	28aa4a7716	EXPERIMENTAL set higher bitrate	2022-08-13 03:49:40 +02:00
TudbuT	b88ee3e6c6	better progress display	2022-08-13 03:41:14 +02:00
TudbuT	eff8a851b4	more efficiency and better progress display	2022-08-13 03:37:03 +02:00
TudbuT	9026b19219	inc. version	2022-08-13 03:23:41 +02:00
TudbuT	0788d18642	fix holepunching	2022-08-13 03:23:28 +02:00
		`@ -0,0 +1,2 @@`
							`[target.x86_64-apple-darwin]`
							`image = "ghcr.io/cross-rs/x86_64-apple-darwin-cross:local"`