Add upload functionality

This commit is contained in:
Yash Karandikar 2022-04-18 13:35:15 -05:00
parent 7e2cb8cbd0
commit 898b98d442
4 changed files with 736 additions and 7 deletions

569
Cargo.lock generated
View file

@ -2,6 +2,575 @@
# It is not intended for manual editing.
version = 3
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View file

@ -6,3 +6,18 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = "1"
directories = "4.0"
[dependencies.json]
version = "0"
[dependencies.ureq]
version = "2"
default-features = false
features = ["tls"]
[dependencies.multipart]
version = "0"
default-features = false
features = ["client"]

81
src/discord.rs Normal file
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@ -0,0 +1,81 @@
/*
* This code is adapted from https://git.karx.xyz/lemonsh/zdiu/src/branch/master/src/discord.rs
* Licensed under the MIT License
* */
use multipart::client::lazy::Multipart;
use std::error::Error;
use std::fmt::{Display, Formatter};
use std::io;
use std::io::Read;
#[derive(Debug)]
struct JsonError(String);
impl Display for JsonError {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
write!(f, "Discord AIP sent invalid JSON: {}", self.0)
}
}
impl JsonError {
fn new(s: String) -> Self {
Self(s)
}
}
impl Error for JsonError {}
struct CountingRead<'a, T, F> {
inner_stream: &'a mut T,
current_prog: u64,
progress_callback: F,
}
impl<'a, T: Read, F: FnMut(u64)> CountingRead<'a, T, F> {
fn new(inner_stream: &'a mut T, progress_callback: F) -> Self {
Self {
inner_stream,
current_prog: 0,
progress_callback,
}
}
}
impl<T: Read, F: FnMut(u64)> Read for CountingRead<'_, T, F> {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
let res = self.inner_stream.read(buf);
if let Ok(bytes) = res {
self.current_prog += bytes as u64;
(self.progress_callback)(self.current_prog);
}
res
}
}
pub fn upload<F: FnMut(f64)>(
filename: &str,
data: &[u8],
webhook: &str,
mut callback: F,
) -> anyhow::Result<String> {
let mut cursor = io::Cursor::new(data);
let mut mp = Multipart::new();
let counting_reader = CountingRead::new(&mut cursor, move |bytes| {
(callback)(bytes as f64 / data.len() as f64);
});
mp.add_stream("file", counting_reader, Some(filename.to_string()), None);
let mpdata = mp.prepare()?;
let response = ureq::post(webhook)
.set(
"Content-Type",
&format!("multipart/form-data; boundary={}", mpdata.boundary()),
)
.send(mpdata)?;
let response_string = response.into_string()?;
let mut rjson = json::parse(&response_string)?;
Ok(rjson["attachments"][0]["url"]
.take_string()
.ok_or_else(|| JsonError::new(response_string.clone()))?)
}

View file

@ -1,4 +1,15 @@
#![allow(unused_macros)]
use anyhow::{anyhow, bail};
use directories::ProjectDirs;
use std::fs::File;
use std::io::Write;
use std::io::{Read, Seek, SeekFrom};
use std::path::Path;
use std::path::PathBuf;
mod discord;
const MAXBUF: u64 = 8_380_416;
macro_rules! loop_try {
($e:expr) => {
@ -9,12 +20,65 @@ macro_rules! loop_try {
};
}
fn main() {
let mut i = 0;
let chars = ['\\', '|', '/', '-'];
loop {
i += 1;
print!("{} \r", chars[i % chars.len()]);
loop_try!(std::io::stdout().flush());
macro_rules! try_or_return {
($e:expr) => {
match $e {
Ok(v) => v,
Err(_) => return,
}
};
}
fn get_config_file() -> PathBuf {
let proj_dirs = ProjectDirs::from("xyz", "karx", "dimgup-cli").unwrap();
let mut b = proj_dirs.config_dir().to_path_buf();
b.push("webhook");
b
}
fn get_webhook(path: &Path) -> anyhow::Result<String> {
Ok(std::fs::read_to_string(path)?)
}
fn get_file_info(path: &Path) -> anyhow::Result<(File, u64, String)> {
let filename = path.file_name().unwrap().to_str().unwrap();
let mut handle = File::open(path)?;
let filesize = handle.seek(SeekFrom::End(0))?;
handle.seek(SeekFrom::Start(0))?;
if filesize > MAXBUF {
bail!("File is too big.")
} else {
Ok((handle, filesize, filename.to_string()))
}
}
fn do_upload(mut file: File, size: u64, name: &str, webhook: &str) -> anyhow::Result<String> {
let mut buffer = vec![0u8; size as usize];
file.read_exact(&mut *buffer)?;
let progress_update = |bytes: f64| {
let chars = ['\\', '|', '/', '-'];
print!("{} \r", chars[((bytes * 100.0) as usize) % chars.len()]);
try_or_return!(std::io::stdout().flush());
};
discord::upload(name, &buffer, webhook, progress_update)
}
fn main() -> anyhow::Result<()> {
let conf = get_config_file();
let webhook = match get_webhook(&conf) {
Ok(w) => w,
Err(e) => bail!("configuration file {:#?} is invalid: {}", conf, e),
};
let filename = std::env::args()
.nth(1)
.ok_or_else(|| anyhow!("No filename was provided"))?;
let filename = PathBuf::from(filename);
let (handle, size, name) = get_file_info(&filename)?;
let url = do_upload(handle, size, &name, &webhook)?;
println!("Upload finished! URL: {}", url);
Ok(())
}