diff --git a/COPYING b/COPYING deleted file mode 100644 index be3f7b2..0000000 --- a/COPYING +++ /dev/null @@ -1,661 +0,0 @@ - GNU AFFERO GENERAL PUBLIC LICENSE - Version 3, 19 November 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU Affero General Public License is a free, copyleft license for -software and other kinds of works, specifically designed to ensure -cooperation with the community in the case of network server software. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -our General Public Licenses are intended to guarantee your freedom to -share and change all versions of a program--to make sure it remains free -software for all its users. - - When we speak of free software, we are referring to freedom, not -price. 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There are many ways you could offer source, and different -solutions will be better for different programs; see section 13 for the -specific requirements. - - 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 AGPL, see -. diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..b196b49 --- /dev/null +++ b/LICENSE @@ -0,0 +1,9 @@ + The MIT License (MIT) + +Copyright © 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) + +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. diff --git a/PROTOCOL b/PROTOCOL deleted file mode 100644 index acfff4d..0000000 --- a/PROTOCOL +++ /dev/null @@ -1,47 +0,0 @@ ---- DDTU PROTOCOL v1 --- - -- High level overview - - -- Node Modes - - -[Receive] -Is for receiving information. - -[Send] -Is for sending data to the receiving end. - -[Sync] -Is for syncing one directory among 2 ends. (Make contents the same on both sides) - -[Daemon] -Is used to create a longstanding sync daemon which syncs the directory with all incoming -sync connections - - -All infomation|commands are sent via packets with specific structure - -- Packet bytes representation - - -First 16 bytes - the total packet length -The next 1 byte - number that represents this packet's type (ID) where: -1: HANDSHAKE PACKET -2: HANDSHAKE ACCEPT -3: CONNECTION SHUTDOWN PACKET -4: TEXT PACKET -5: FILEINFO PACKET -6: FILEDATA PACKET -7: FILE ACCEPT PACKET -8: FILE REJECT PACKET - -Then the internal structure varies from one packet type to the other, -but the content-types are encoded as follows: -u8 - just 1 BE byte -u128 - 16 BE bytes -String - u128 representing the string length and then UTF-8 encoded character bytes -[u8] - u128 as the length of a byte array, then the array itself -bool - convert it to u8 where 0 == false, 1 == true - -- Packets - -[Handshake] -This is the first packet that must be sent by connecting node to waiting node. -Its existence tells the receiving end that the diff --git a/README.md b/README.md index 24da993..cdcfea2 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,6 @@ # ddtu - digital data transferring utility -### Transfer one thing from __here__ to __there__ via the Internet connection \ No newline at end of file +Or ... well, could've been + +The project's been abandoned for uncertain amount of time. + +It can send text though =D \ No newline at end of file diff --git a/TODO b/TODO deleted file mode 100644 index 82d86c0..0000000 --- a/TODO +++ /dev/null @@ -1,5 +0,0 @@ --1. Write base foundation for sending and receiving information- --2. Wire it all together- -3. Make it encrypted -4. Allow receiving node to connect as well -5. Daemon \ No newline at end of file diff --git a/src/args/parser.rs b/src/args/parser.rs index a2a0fd8..8999ff6 100644 --- a/src/args/parser.rs +++ b/src/args/parser.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use crate::util::error::Error; use crate::protocol::specs::RunMode; use std::path; @@ -44,7 +29,7 @@ impl Args { help: false, version: false, verbose_output: false, - mode: RunMode::DAEMON, + mode: RunMode::RECEIVE, send_type: DataType::TEXT, address_str: "".to_string(), send_path: path::PathBuf::new(), @@ -156,39 +141,6 @@ pub fn parse(raw_args: &Vec) -> Result { break; } - - "sync" => { - parsed_args.mode = RunMode::SYNC; - - if arg_amount < 3 && !parsed_args.verbose_output { - return Err(Error::new("not enough arguments for syncing")); - } else if arg_amount < 4 && !parsed_args.verbose_output { - return Err(Error::new("not enough arguments for syncing")); - } - - let arg_index: usize; - match parsed_args.verbose_output { - true => { - arg_index = 3; - } - - false => { - arg_index = 2; - } - } - - let sync_path: &path::Path = path::Path::new(raw_args[arg_index].as_str()); - if !sync_path.exists() || !sync_path.is_dir() { - return Err(Error::new(format!("{} does not exist or is not a directory", sync_path.display()).as_str())); - } - - break; - } - - "daemon" => { - parsed_args.mode = RunMode::DAEMON; - break; - } _ => { return Err(Error::new(format!("invalid argument {}", raw_args[arg_index]).as_str())); diff --git a/src/crypt/keys.rs b/src/crypt/keys.rs index d420c7b..b14fdd6 100644 --- a/src/crypt/keys.rs +++ b/src/crypt/keys.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use crate::crypt::rand; use std::time::{SystemTime, UNIX_EPOCH}; diff --git a/src/crypt/rand.rs b/src/crypt/rand.rs index adb3acc..251fd2c 100644 --- a/src/crypt/rand.rs +++ b/src/crypt/rand.rs @@ -1,19 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - - pub fn rand_u16(seed: u16) -> u16 { return ((seed & 47851) + (seed >> 8 | 7943)) as u16; } diff --git a/src/crypt/xor.rs b/src/crypt/xor.rs index c81a598..dfbbaf4 100644 --- a/src/crypt/xor.rs +++ b/src/crypt/xor.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use crate::crypt::keys::Key8bit; pub fn encrypt(plain: &mut [u8], key: &Key8bit) { diff --git a/src/fsys/file.rs b/src/fsys/file.rs index dadadf6..81fba41 100644 --- a/src/fsys/file.rs +++ b/src/fsys/file.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use crate::util::error::Error; use std::io::SeekFrom; use std::io::Seek; @@ -38,11 +23,8 @@ impl ChunkedFile { /// Create a new, ready-to-write chunked regular file pub fn new(path: &std::path::Path, size: u128, chunk_size: u128) -> Result { - let file_handle: std::fs::File; - match std::fs::File::create(path) { - Ok(fh) => { - file_handle = fh; - } + match std::fs::File::options().truncate(false).write(true).create(true).open(path) { + Ok(_) => {} Err(error) => { return Err( @@ -57,14 +39,14 @@ impl ChunkedFile { new_chunked_file.path = path.to_path_buf(); // resize file - match file_handle.set_len(size as u64) { - Ok(()) => {} - Err(error) => { - return Err( - Error::new(format!("could not resize \'{}\': {}", path.display(), error).as_str()) - ); - } - } + // match file_handle.set_len(size as u64) { + // Ok(()) => {} + // Err(error) => { + // return Err( + // Error::new(format!("could not resize \'{}\': {}", path.display(), error).as_str()) + // ); + // } + // } new_chunked_file.size = size; // chunks @@ -114,15 +96,13 @@ impl ChunkedFile { return Ok(new_chunked_file); } - pub fn read_chunk(&self, buf: &mut [u8], chunk_no: u128) -> Option { - if chunk_no > self.chunks_amount { - return Some(Error::new("chunk number is bigger than there are chunks")); + pub fn read_chunk(&self, chunk_no: u128) -> Result, Error> { + if chunk_no + 1 > self.chunks_amount { + return Err( + Error::new(format!("chunk index ({}) is bigger than there are chunks ({})", chunk_no, self.chunks_amount).as_str()) + ); } - if (buf.len() as u128) < self.chunk_size { - return Some(Error::new("buffer is too small to fit a chunk")); - } - // open underlying file let mut file_handle: std::fs::File; match std::fs::File::open(&self.path) { @@ -130,7 +110,7 @@ impl ChunkedFile { file_handle = fh; } Err(error) => { - return Some(Error::new(format!("{}", error).as_str())); + return Err(Error::new(format!("{}", error).as_str())); } } @@ -139,34 +119,45 @@ impl ChunkedFile { match file_handle.seek(SeekFrom::Start(chunk_start_pos as u64)) { Ok(_) => {} Err(error) => { - return Some(Error::new(format!("seek error: {}", error).as_str())) + return Err(Error::new(format!("seek error: {}", error).as_str())) } } - match file_handle.read(buf) { + let bytes_to_read: u128; + if chunk_start_pos + self.chunk_size > self.size { + bytes_to_read = chunk_start_pos + self.chunk_size - self.size; + } else { + bytes_to_read = self.chunk_size; + } + + // read call leaves buf empty if it is not pre-initialized beforehand + let mut buf: Vec = vec!(0; bytes_to_read as usize); + match file_handle.read_exact(&mut buf) { Ok(_) => {} Err(error) => { - return Some(Error::new(format!("read error: {}", error).as_str())) + return Err(Error::new(format!("read error: {}", error).as_str())) } } - return None; + return Ok(Vec::from(buf)); } - pub fn write_chunk(&mut self, chunk: &[u8], chunk_no: u128) -> Option { - if chunk_no > self.chunks_amount { + pub fn write_chunk(&mut self, chunk: &[u8], chunk_no: u128) -> Result<(),Error> { + if chunk_no + 1 > self.chunks_amount { // can't write outsize of pre-determined boundaries of a file ! - return Some(Error::new("chunk number is bigger than there are chunks")); + return Err( + Error::new(format!("chunk index ({}) is bigger than there are chunks ({})", chunk_no, self.chunks_amount).as_str()) + ); } - if (chunk.len() as u128) < self.chunk_size && chunk_no != self.chunks_amount { + if (chunk.len() as u128) < self.chunk_size && chunk_no + 1 != self.chunks_amount { // unfull chunk in the middle of a file - return Some(Error::new("cannot write unfull chunk in a not last position")); + return Err(Error::new("cannot write unfull chunk in a not last position")); } if (chunk.len() as u128) > self.chunk_size { // too big chunk - return Some(Error::new("chunk is too big")); + return Err(Error::new("chunk is too big")); } // open file and write a new chunk @@ -177,7 +168,7 @@ impl ChunkedFile { } Err(error) => { - return Some(Error::new(format!("{}", error).as_str())); + return Err(Error::new(format!("{}", error).as_str())); } } @@ -185,17 +176,81 @@ impl ChunkedFile { match file_handle.seek(SeekFrom::Start(chunk_start_pos as u64)) { Ok(_) => {} Err(error) => { - return Some(Error::new(format!("seek error: {}", error).as_str())); + return Err(Error::new(format!("seek error: {}", error).as_str())); } } match file_handle.write_all(chunk) { Ok(()) => {} Err(error) => { - return Some(Error::new(format!("write error: {}", error).as_str())) + return Err(Error::new(format!("write error: {}", error).as_str())) } } - return None; + return Ok(()); + } +} + +#[cfg(test)] +mod tests { + use crate::fsys::file::ChunkedFile; + + #[test] + fn test_file_operations() { + let mut test_contents: Vec = vec!(0; 250); + for i in 0..250 { + test_contents[i] = i as u8; + } + + { + let mut new_file: ChunkedFile; + match ChunkedFile::new(std::path::Path::new("testfile"), 255, 10) { + Ok(f) => { + new_file = f; + } + + Err(error) => { + panic!("{}", error.text); + } + } + + for i in 0..250/10 { + if let Err(error) = new_file.write_chunk(&test_contents[i*10..i*10+10], i as u128) { + panic!("{}", error.text); + } + } + } + + let chunked_file: ChunkedFile; + match ChunkedFile::from(std::path::Path::new("testfile"), 10) { + Ok(f) => { + chunked_file = f; + } + + Err(error) => { + panic!("{}", error.text); + } + } + + let mut read_contents: Vec = Vec::new(); + for i in 0..250/10 { + match chunked_file.read_chunk(i) { + Ok(chunk) => { + read_contents.extend_from_slice(&chunk); + } + + Err(error) => { + panic!("{}", error.text); + } + } + } + + // panic!("{:?} ---- {:?}", read_contents, test_contents); + + for i in 0..250 { + if read_contents[i] != test_contents[i] { + panic!("contents do not match"); + } + } } } \ No newline at end of file diff --git a/src/main.rs b/src/main.rs index 8e8929b..e276686 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - mod util; mod protocol; mod args; @@ -22,6 +7,7 @@ mod nodes; use protocol::specs::RunMode; use args::parser::Args; +use args::parser::DataType; use nodes::recv_node::RecvOptions; use nodes::send_node::SendOptions; @@ -39,8 +25,6 @@ ddtu [FLAG] [MODE] [MODE-specific arguments] [MODE] [send]: ddtu send [TYPE] [SRC] [ADDR] -> send [SRC] of [TYPE] to [ADDR] [recv]: ddtu recv [DIR](optional) -> wait for connection and receive anything from another ddtu instance, saving it to [DIR] -[sync]: ddtu sync [DIR] [ADDR] -> sync [DIRectory] contents with another ddtu instance on [ADDR] -[daemon]: ddtu daemon -> start sync daemon [TYPE] [text]: ddtu send text \'text to send\' -> send text @@ -93,7 +77,7 @@ fn main() { } match nodes::recv_node::start( - RecvOptions::new(format!("0.0.0.0:{}", DEFAULT_PORT), args.save_directory), args.verbose_output) { + &mut RecvOptions::new(format!("0.0.0.0:{}", DEFAULT_PORT), args.save_directory), args.verbose_output) { Ok(_) => {} Err(error) => { println!("Error receiving: {}", error.text); @@ -103,26 +87,36 @@ fn main() { } RunMode::SEND => { + match args.send_type { + DataType::DIR => { + println!("Sending directory is not implemented"); + return; + } + + DataType::FILE => { + println!("Sending files is not implemented"); + return; + } + + _ => {} + } + match nodes::send_node::start( SendOptions::new( args.address_str, args.send_type, args.text_to_send, args.send_path, - ), args.verbose_output) { + ), args.verbose_output) + + { Ok(_) => {} Err(error) => { println!("Error sending: {}", error.text); return; } - } - } - - RunMode::DAEMON => { - } - - RunMode::SYNC => { + } } } } diff --git a/src/nodes/recv_node.rs b/src/nodes/recv_node.rs index b6e8009..bc76e06 100644 --- a/src/nodes/recv_node.rs +++ b/src/nodes/recv_node.rs @@ -1,23 +1,10 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use crate::util::error::Error; use crate::protocol::specs::Packet; use crate::protocol::packets::{read_next_packet, send_packet}; use crate::protocol::packets; use crate::protocol::specs; +// use crate::fsys; +// use std::collections::HashMap; use std::path; use std::net; use std::sync::mpsc::{Sender, Receiver}; @@ -39,9 +26,9 @@ impl RecvOptions { } -pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { +pub fn start(options: &mut RecvOptions, verbose_output: bool) -> Result<(), Error> { let listener: net::TcpListener; - match net::TcpListener::bind(options.listen_address) { + match net::TcpListener::bind(&options.listen_address) { Ok(l) => { listener = l; } @@ -55,7 +42,7 @@ pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { // reject any connection that doesn't provide handshake information let mut connection: net::TcpStream; let mut address: net::SocketAddr; - let mut handshake: packets::Handshake; + let handshake: packets::Handshake; loop { match listener.accept() { Ok((c, a)) => { @@ -121,8 +108,21 @@ pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { } } - // now read and process incoming packets; essentialy receiving something ! + + // remember file IDs and paths + // let mut monitored_files: HashMap = HashMap::new(); + // create save directory + match std::fs::create_dir_all(&options.save_directory) { + Ok(_) => {} + Err(error) => { + if verbose_output { + println!("Could not create save directory: {}; saving to current one", error); + } + options.save_directory = path::Path::new(".").to_path_buf(); + } + } + // launch a new packet reading thread let (ch_send, ch_recv): (Sender, Receiver) = mpsc::channel(); @@ -131,15 +131,14 @@ pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { Ok(cc) => { cloned_connection = cc; } - Err(_) => { packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); - return Err( Error::new("could not clone connection") ); } } + cloned_connection.set_read_timeout(Some(std::time::Duration::from_secs(5))); let handshake_clone: packets::Handshake = handshake.clone(); thread::spawn(move || { @@ -157,7 +156,7 @@ pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { if verbose_output { println!("Could not read packet: {}", error.text); } - continue; + return; } } } @@ -171,10 +170,8 @@ pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { Ok(p) => { incoming_packet = p; } - Err(error) => { packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); - return Err(Error::new( format!("error receiving a new packet from listener thread: {}", error).as_str() )); @@ -184,11 +181,11 @@ pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { match incoming_packet.header { specs::CONNECTION_SHUTDOWN_PACKET_ID => { if verbose_output { - println!("{} shuts down the connection", address); + println!("Connection has been shut down"); } packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); - break; + return Ok(()); } specs::TEXT_PACKET_ID => { @@ -208,9 +205,95 @@ pub fn start(options: RecvOptions, verbose_output: bool) -> Result<(), Error> { } } + // specs::FILEINFO_PACKET_ID => { + // match packets::FileInfo::from_raw(&incoming_packet) { + // Ok(mut fileinfo_packet) => { + // // create it + // if let Err(error) = std::fs::File::create(&options.save_directory.join(&fileinfo_packet.relative_path)) { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new( + // format!("could not create a new file {}: {}", fileinfo_packet.filename, error).as_str() + // ), + // ) + // } + + // // accept it + // if let Err(error) = send_packet( + // &mut connection, + // &packets::FileAccept{}.as_raw(), + // handshake.encryption_type, + // &handshake.encryption_key, + // ) { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new(format!("could not accept file {}: {}", fileinfo_packet.filename, error.text).as_str()), + // ) + // } + + // println!("\nReceiving \"{}\" ({} MB))", fileinfo_packet.filename, fileinfo_packet.filesize as f32/1024.0/1024.0); + + // // monitor + // fileinfo_packet.relative_path = options.save_directory.join(fileinfo_packet.relative_path).to_string_lossy().into_owned(); + // monitored_files.insert( + // fileinfo_packet.file_id, fileinfo_packet, + // ); + // } + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err(Error::new(format!("error getting a fileinfo packet: {}", error.text).as_str())); + // } + // } + // } + + // specs::FILEDATA_PACKET_ID => { + // let filedata_packet: packets::FileData; + // match packets::FileData::from_raw(&incoming_packet) { + // Ok(fd_packet) => { + // filedata_packet = fd_packet; + // } + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err(Error::new(format!("error getting a filedata packet: {}", error.text).as_str())); + // } + // } + + // // check if this file indeed was notified about + // match monitored_files.get(&filedata_packet.file_id) { + // None => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err(Error::new(format!("file with ID {} was not notified about", filedata_packet.file_id).as_str())); + // } + + // Some(file_info) => { + // // open file + // let mut chunked_file: fsys::file::ChunkedFile; + // match fsys::file::ChunkedFile::new(&path::Path::new(&file_info.relative_path), file_info.filesize, handshake.chunk_size as u128) { + // Ok(f) => { + // chunked_file = f; + // } + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new(format!("error opening chunked file {}: {}", file_info.filename, error.text).as_str()) + // ); + // } + // } + // // write required chunk + // if let Err(error) = chunked_file.write_chunk(&filedata_packet.chunk, filedata_packet.chunk_no as u128) { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new(format!("error writing a chunk to {}: {}", file_info.filename, error.text).as_str()), + // ); + // } + // } + // } + // } + _ => {} } } - - return Ok(()); } diff --git a/src/nodes/send_node.rs b/src/nodes/send_node.rs index efacccf..63f514d 100644 --- a/src/nodes/send_node.rs +++ b/src/nodes/send_node.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use crate::util::error::Error; use crate::args::parser::DataType; use crate::crypt; @@ -20,6 +5,7 @@ use crate::protocol::packets; use crate::protocol::packets::{send_packet, read_next_packet}; use crate::protocol::specs; use crate::protocol::specs::Packet; +use crate::fsys; use std::thread; use std::sync::mpsc::{Sender, Receiver}; use std::sync::mpsc; @@ -66,6 +52,7 @@ pub fn start(options: SendOptions, verbose_output: bool) -> Result<(), Error> { // send handshake let handshake: packets::Handshake = packets::Handshake{ protocol_version: specs::PROTOCOL_VERSION_1, + chunk_size: specs::CHUNK_SIZE as u64, encryption_type: specs::ECRYPTION_XOR, encryption_key: crypt::keys::Key8bit::new_random().as_bytes(), }; @@ -113,49 +100,7 @@ pub fn start(options: SendOptions, verbose_output: bool) -> Result<(), Error> { } } - // handshake has been accepted - - // launch a new packet reading thread - let (ch_send, _ch_recv): (Sender, Receiver) = mpsc::channel(); - - let mut cloned_connection: net::TcpStream; - match connection.try_clone() { - Ok(cc) => { - cloned_connection = cc; - } - - Err(_) => { - packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); - - return Err( - Error::new("could not clone connection") - ); - } - } - let handshake_clone = handshake.clone(); - - thread::spawn(move || { - loop { - match read_next_packet(&mut cloned_connection, handshake_clone.encryption_type, &handshake_clone.encryption_key) { - Ok(packet) => { - if let Err(_) = ch_send.send(packet) { - // the channel has been hung up - // return from this thread - return; - } - } - - Err(error) => { - if verbose_output { - println!("Could not read packet: {}", error.text); - } - continue; - } - } - } - }); - - + // handshake has been accepted // now send match options.send_type { DataType::TEXT => { @@ -172,43 +117,119 @@ pub fn start(options: SendOptions, verbose_output: bool) -> Result<(), Error> { } DataType::FILE => { - + // // prepare file + // let chunked_file: fsys::file::ChunkedFile; + // match fsys::file::ChunkedFile::from(&options.source_path, handshake.chunk_size as u128) { + // Ok(f) => { + // chunked_file = f; + // } + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new( + // format!("error constructing a chunked file {}: {}", options.source_path.display(), error.text).as_str()) + // ); + // } + // } + + // // send fileinfo packet + // let fileinfo_packet: packets::FileInfo; + // match packets::FileInfo::new(&chunked_file, 1, "".to_string()) { + // Ok(fp) => { + // fileinfo_packet = fp; + // } + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new( + // format!("error constructing fileinfo packet for {}: {}", options.source_path.display(), error.text).as_str()) + // ); + // } + // } + + // match send_packet(&mut connection, &fileinfo_packet.as_raw(), handshake.encryption_type, &handshake.encryption_key) { + // Ok(()) => {} + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new( + // format!("could not send fileinfo packet for {}: {}", options.source_path.display(), error.text).as_str()) + // ); + // } + // } + + // // wait for acceptance or rejection + // match read_next_packet(&mut connection, handshake.encryption_type, &handshake.encryption_key) { + // Ok(packet) => { + // match packet.header { + // specs::FILE_ACCEPT_PACKET_ID => { + // // proceed + // if verbose_output { + // println!("File has been accepted"); + // } + // } + + // specs::FILE_REJECT_PACKET_ID | _ => { + // // file not needed + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Ok(()); + // } + // } + // } + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new( + // format!("could not receive answer for fileinfo packet: {}", error.text).as_str()) + // ); + // } + // } + + // println!("started to send chunks"); + // // send the file in chunks ! + // for chunk_no in 0..chunked_file.chunks_amount { + // // read next chunk + // let chunk_bytes: Vec; + // match chunked_file.read_chunk(chunk_no) { + // Ok(c) => { + // chunk_bytes = c; + // } + + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new(format!("error reading chunk no {} from {}: {}", chunk_no, chunked_file.path.display(), error.text).as_str()), + // ); + // } + // } + + // // send it + // let filedata_packet: packets::FileData = packets::FileData::new(fileinfo_packet.file_id, chunk_no as u64, chunk_bytes); + // match send_packet(&mut connection, &filedata_packet.as_raw(), handshake.encryption_type, &handshake.encryption_key) { + // Ok(()) => {} + // Err(error) => { + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Err( + // Error::new( + // format!("could not send filedata packet for {}: {}", options.source_path.display(), error.text).as_str()) + // ); + // } + // } + // } + + // // once the file has been received - close the connection + // packets::close_connection(&mut connection, handshake.encryption_type, &handshake.encryption_key); + // return Ok(()); } DataType::DIR => { } } - - // // handle incoming packets - // loop { - // let incoming_packet: Box; - // match ch_recv.recv() { - // Ok(p) => { - // incoming_packet = p; - // } - - // Err(error) => { - // packets::close_connection(&mut connection); - // return Err(Error::new( - // format!("error receiving a new packet from listener thread: {}", error).as_str() - // )); - // } - // } - - // match incoming_packet.get_type() { - // PacketType::ConnectionShutdown => { - // if verbose_output { - // println!("Connection has been shut down"); - // } - // packets::close_connection(&mut connection); - - // break; - // } - - // _ => {} - // } - // } return Ok(()); } diff --git a/src/protocol/packets.rs b/src/protocol/packets.rs index f90acd8..cd468a2 100644 --- a/src/protocol/packets.rs +++ b/src/protocol/packets.rs @@ -1,24 +1,9 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use std::net; use std::io::Write; use std::io::Read; use crate::util::error::Error; -use crate::util::buf_read::{read_u128_slice_be, read_utf8_string_slice}; +use crate::util::buf_read::{read_u128_slice_be, read_utf8_string_slice, read_u64_slice_be}; use crate::protocol::specs::*; use crate::fsys::file::ChunkedFile; use crate::crypt; @@ -41,9 +26,9 @@ pub fn send_packet(conn: &mut W, packet: &Packet, encr_type: u8, key: &Vec = Vec::with_capacity((total_packet_len + 16) as usize); + let mut transport_bytes: Vec = Vec::with_capacity((total_packet_len + 8) as usize); transport_bytes.extend_from_slice(&total_packet_len.to_be_bytes()); transport_bytes.append(&mut packet_bytes); @@ -61,9 +46,9 @@ pub fn send_packet(conn: &mut W, packet: &Packet, encr_type: u8, key: &Vec(conn: &mut R, encr_type: u8, key: &Vec) -> Result where R: Read { - let mut u128_buf: [u8; 16] = [0; 16]; + let mut u64_buf: [u8; 8] = [0; 8]; loop { - match conn.read_exact(&mut u128_buf) { + match conn.read_exact(&mut u64_buf) { Ok(()) => { break; } @@ -83,7 +68,7 @@ pub fn read_next_packet(conn: &mut R, encr_type: u8, key: &Vec) -> Result } } - let packet_len: u128 = u128::from_be_bytes(u128_buf); + let packet_len: u64 = u64::from_be_bytes(u64_buf); let mut packet_bytes: Vec = vec!(0; packet_len as usize); match conn.read_exact(&mut packet_bytes) { @@ -139,7 +124,7 @@ impl Text { contents: Vec::with_capacity(self.text.len()), }; - let text_length: u128 = self.text.len() as u128; + let text_length: u64 = self.text.len() as u64; raw_packet.contents.extend_from_slice(&text_length.to_be_bytes()); raw_packet.contents.extend_from_slice(&self.text.as_bytes()); @@ -151,29 +136,29 @@ impl Text { return Err(Error::new("it is not a text packet")); } - if raw_packet.contents.len() < 17 { + if raw_packet.contents.len() < 9 { return Err( Error::new(format!("{} bytes is too small for a text packet to be valid", raw_packet.contents.len()).as_str() )); } // get text length - let text_length: u128 = read_u128_slice_be(&raw_packet.contents[0..16]); + let text_length: u64 = read_u64_slice_be(&raw_packet.contents[0..8]); - if text_length as usize > raw_packet.contents[16..16+text_length as usize].len() { + if text_length as usize > raw_packet.contents[8..8+text_length as usize].len() { return Err( Error::new( format!( "text length ({}) is bigger than provided packet bytes length ({})", text_length, - raw_packet.contents[16..16+text_length as usize].len() + raw_packet.contents[8..8+text_length as usize].len() ).as_str() ) ); } // extract text - let packet_text = read_utf8_string_slice(&raw_packet.contents[16..16+text_length as usize]); + let packet_text = read_utf8_string_slice(&raw_packet.contents[8..8+text_length as usize]); return Ok( Text{ @@ -185,7 +170,7 @@ impl Text { pub struct FileInfo { - pub file_id: u128, + pub file_id: u64, pub filename: String, pub filesize: u128, pub relative_path: String, @@ -201,7 +186,7 @@ impl FileInfo { }; } - pub fn new(file: &ChunkedFile, file_id: u128, rel_path: String) -> Result { + pub fn new(file: &ChunkedFile, file_id: u64, rel_path: String) -> Result { let mut new_fileinfo_packet: FileInfo = FileInfo::empty(); // id @@ -232,14 +217,18 @@ impl FileInfo { new_fileinfo_packet.filesize = file.size; // rel path - new_fileinfo_packet.relative_path = rel_path; + if rel_path == "" { + new_fileinfo_packet.relative_path = new_fileinfo_packet.filename.clone(); + } else { + new_fileinfo_packet.relative_path = rel_path; + } return Ok(new_fileinfo_packet); } pub fn as_raw(&self) -> Packet { let mut raw_packet: Packet = Packet{ - header: TEXT_PACKET_ID, + header: FILEINFO_PACKET_ID, contents: Vec::::new(), }; @@ -247,7 +236,7 @@ impl FileInfo { raw_packet.contents.extend_from_slice(&self.file_id.to_be_bytes()); // filename - let filename_bytes_length: u128 = self.filename.len() as u128; + let filename_bytes_length: u64 = self.filename.len() as u64; raw_packet.contents.extend_from_slice(&filename_bytes_length.to_be_bytes()); raw_packet.contents.extend_from_slice(&self.filename.as_bytes()); @@ -255,7 +244,7 @@ impl FileInfo { raw_packet.contents.extend_from_slice(&self.filesize.to_be_bytes()); // relative path - let relative_path_bytes_length: u128 = self.relative_path.len() as u128; + let relative_path_bytes_length: u64 = self.relative_path.len() as u64; raw_packet.contents.extend_from_slice(&relative_path_bytes_length.to_be_bytes()); raw_packet.contents.extend_from_slice(&self.relative_path.as_bytes()); @@ -267,28 +256,28 @@ impl FileInfo { return Err(Error::new("it is not a fileinfo packet")); } - if raw_packet.contents.len() < 16+16+16+16 { + if raw_packet.contents.len() < 8+8+16+8 { return Err( Error::new(format!("{} bytes is too small for a fileinfo packet to be valid", raw_packet.contents.len()).as_str() )); } // file id - let file_id = read_u128_slice_be(&raw_packet.contents[0..16]); + let file_id = read_u64_slice_be(&raw_packet.contents[0..8]); // get filename - let filename_length: u128 = read_u128_slice_be(&raw_packet.contents[16..32]); - let filename = read_utf8_string_slice(&raw_packet.contents[32..32+filename_length as usize]); + let filename_length: u64 = read_u64_slice_be(&raw_packet.contents[8..16]); + let filename = read_utf8_string_slice(&raw_packet.contents[16..16+filename_length as usize]); // filesize - let filesize = read_u128_slice_be(&raw_packet.contents[32+filename_length as usize..32+16+filename_length as usize]); + let filesize = read_u128_slice_be(&raw_packet.contents[16+filename_length as usize..16+16+filename_length as usize]); // relative path - let rel_path_length: u128 = read_u128_slice_be( - &raw_packet.contents[32+16+filename_length as usize..32+16+16+filename_length as usize] + let rel_path_length: u64 = read_u64_slice_be( + &raw_packet.contents[32+filename_length as usize..32+8+filename_length as usize] ); let relative_path = read_utf8_string_slice( - &raw_packet.contents[32+16+16+filename_length as usize..(filename_length+32+16+16+rel_path_length) as usize] + &raw_packet.contents[32+8+filename_length as usize..(filename_length+32+8+rel_path_length) as usize] ); return Ok( @@ -304,12 +293,20 @@ impl FileInfo { pub struct FileData { - pub file_id: u128, - pub chunk_no: u128, + pub file_id: u64, + pub chunk_no: u64, pub chunk: Vec, } impl FileData { + pub fn new(file_id: u64, chunk_no: u64, chunk: Vec) -> FileData { + return FileData{ + file_id: file_id, + chunk_no: chunk_no, + chunk: chunk, + }; + } + pub fn as_raw(&self) -> Packet { let mut raw_packet: Packet = Packet{ header: FILEDATA_PACKET_ID, @@ -323,7 +320,7 @@ impl FileData { raw_packet.contents.extend_from_slice(&self.chunk_no.to_be_bytes()); // chunk - raw_packet.contents.extend_from_slice(&self.chunk.len().to_be_bytes()); + raw_packet.contents.extend_from_slice(&(self.chunk.len() as u64).to_be_bytes()); raw_packet.contents.extend_from_slice(&self.chunk); return raw_packet; @@ -334,24 +331,24 @@ impl FileData { return Err(Error::new("it is not a filedata packet")); } - if raw_packet.contents.len() < 16+16+16 { + if raw_packet.contents.len() < 8+8+8 { return Err( Error::new(format!("{} bytes is too small for a fileinfo packet to be valid", raw_packet.contents.len()).as_str() )); } // file id - let file_id = read_u128_slice_be(&raw_packet.contents[0..16]); + let file_id = read_u64_slice_be(&raw_packet.contents[0..8]); // chunk number - let chunk_no = read_u128_slice_be(&raw_packet.contents[16..32]); + let chunk_no = read_u64_slice_be(&raw_packet.contents[8..16]); // chunk bytes - let chunk_length = read_u128_slice_be(&raw_packet.contents[32..48]); - let mut chunk: Vec = Vec::with_capacity(chunk_length as usize); - for i in 48..(48+chunk_length) as usize { - chunk[i-48] = raw_packet.contents[i].to_be(); - } + let chunk_length = read_u64_slice_be(&raw_packet.contents[16..24]); + let mut chunk: Vec = vec!(0; chunk_length as usize); + for i in 24..(24+chunk_length) as usize { + chunk[i-24] = raw_packet.contents[i].to_be(); + } return Ok( FileData{ @@ -393,6 +390,7 @@ impl ConnectionShutdown { #[derive(Clone, Debug)] pub struct Handshake { pub protocol_version: u8, + pub chunk_size: u64, pub encryption_type: u8, pub encryption_key: Vec, } @@ -407,11 +405,14 @@ impl Handshake { // protocol version raw_packet.contents.extend_from_slice(&PROTOCOL_LATEST_VERSION.to_be_bytes()); + // chunk_size + raw_packet.contents.extend_from_slice(&u64::from_be_bytes(CHUNK_SIZE.to_be_bytes()).to_be_bytes()); + // encryption type raw_packet.contents.extend_from_slice(&self.encryption_type.to_be_bytes()); // encryption key - raw_packet.contents.extend_from_slice(&(self.encryption_key.len() as u128).to_be_bytes()); + raw_packet.contents.extend_from_slice(&(self.encryption_key.len() as u64).to_be_bytes()); raw_packet.contents.extend_from_slice(&self.encryption_key); return raw_packet; @@ -422,7 +423,7 @@ impl Handshake { return Err(Error::new("it is not a handshake packet")); } - if raw_packet.contents.len() < 1+1+16 { + if raw_packet.contents.len() < 1+1+8+8 { return Err( Error::new(format!("{} bytes is too small for a handshake packet to be valid", raw_packet.contents.len()).as_str()) ); @@ -431,11 +432,14 @@ impl Handshake { // protocol version let protocol_version = raw_packet.contents[0].to_be(); + // chunk size + let chunk_size = read_u64_slice_be(&raw_packet.contents[1..9]); + // encryption type - let encryption_type = raw_packet.contents[1].to_be(); + let encryption_type = raw_packet.contents[9].to_be(); // key - let key_len: u128 = read_u128_slice_be(&raw_packet.contents[2..18]); + let key_len: u64 = read_u64_slice_be(&raw_packet.contents[10..18]); let mut encryption_key: Vec = vec!(0; key_len as usize); if key_len == 0 { encryption_key = Vec::new(); @@ -448,6 +452,7 @@ impl Handshake { return Ok( Handshake{ protocol_version: protocol_version, + chunk_size: chunk_size, encryption_type: encryption_type, encryption_key: encryption_key, } @@ -478,4 +483,54 @@ impl HandshakeAccept { } } } +} + +pub struct FileAccept {} + +impl FileAccept { + pub fn as_raw(&self) -> Packet { + return Packet{ + header: FILE_ACCEPT_PACKET_ID, + contents: Vec::new(), + } + } + + pub fn from_raw(raw_packet: &Packet) -> Result { + match raw_packet.header { + FILE_ACCEPT_PACKET_ID => { + return Ok(FileAccept{}) + } + + _ => { + return Err( + Error::new("this is not a file accept packet"), + ); + } + } + } +} + +pub struct FileReject {} + +impl FileReject { + pub fn as_raw(&self) -> Packet { + return Packet{ + header: FILE_REJECT_PACKET_ID, + contents: Vec::new(), + } + } + + pub fn from_raw(raw_packet: &Packet) -> Result { + match raw_packet.header { + FILE_ACCEPT_PACKET_ID => { + return Ok(FileReject{}) + } + + _ => { + return Err( + Error::new("this is not a file reject packet"), + ); + } + } + } } \ No newline at end of file diff --git a/src/protocol/specs.rs b/src/protocol/specs.rs index 56ec33a..6172ac3 100644 --- a/src/protocol/specs.rs +++ b/src/protocol/specs.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - // Versioning pub const PROTOCOL_VERSION_1: u8 = 1; pub const PROTOCOL_LATEST_VERSION: u8 = PROTOCOL_VERSION_1; @@ -38,8 +23,6 @@ pub const ECRYPTION_XOR: u8 = 1; pub enum RunMode { SEND, RECEIVE, - SYNC, - DAEMON, } #[derive(Debug)] diff --git a/src/util/buf_read.rs b/src/util/buf_read.rs index 3253c4a..baea659 100644 --- a/src/util/buf_read.rs +++ b/src/util/buf_read.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - pub fn read_u128_slice_be(buf_16: &[u8]) -> u128 { let mut arr: [u8; 16] = [0; 16]; for i in 0..16 { @@ -23,4 +8,12 @@ pub fn read_u128_slice_be(buf_16: &[u8]) -> u128 { pub fn read_utf8_string_slice(buf: &[u8]) -> String { return String::from_utf8_lossy(&buf).into_owned(); +} + +pub fn read_u64_slice_be(buf_8: &[u8]) -> u64 { + let mut arr: [u8; 8] = [0; 8]; + for i in 0..8 { + arr[i] = buf_8[i]; + } + return u64::from_be_bytes(arr); } \ No newline at end of file diff --git a/src/util/error.rs b/src/util/error.rs index ae657b5..ff3eae2 100644 --- a/src/util/error.rs +++ b/src/util/error.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - pub struct Error { pub text: String, } diff --git a/src/util/local_ip.rs b/src/util/local_ip.rs index 0dbd26d..436c6ea 100644 --- a/src/util/local_ip.rs +++ b/src/util/local_ip.rs @@ -1,18 +1,3 @@ -/* -ddtu - digital data transferring utility -Copyright (C) 2022 Kasyanov Nikolay Alexeyevich (Unbewohnte) - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU Affero 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 Affero General Public License for more details. -*/ - use std::net; use crate::util::error::Error;