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// yt - A fully featured command line YouTube client
//
// Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
use curl::easy::Easy;
use log::{error, info, warn};
use rustpython::vm::{
PyRef, VirtualMachine,
builtins::{PyDict, PyStr},
};
use serde::{Deserialize, Serialize};
use crate::{pydict_cast, pydict_get, wrap_post_processor};
wrap_post_processor!("DeArrow", unwrapped_process, process);
/// # Errors
/// If the API access fails.
pub fn unwrapped_process(info: PyRef<PyDict>, vm: &VirtualMachine) -> Result<PyRef<PyDict>, Error> {
if pydict_get!(@vm, info, "extractor_key", PyStr).as_str() != "Youtube" {
warn!("DeArrow: Extractor did not match, exiting.");
return Ok(info);
}
let mut output: DeArrowApi = {
let output_bytes = {
let mut dst = Vec::new();
let mut easy = Easy::new();
easy.url(
format!(
"https://sponsor.ajay.app/api/branding?videoID={}",
pydict_get!(@vm, info, "id", PyStr).as_str()
)
.as_str(),
)?;
let mut transfer = easy.transfer();
transfer.write_function(|data| {
dst.extend_from_slice(data);
Ok(data.len())
})?;
transfer.perform()?;
drop(transfer);
dst
};
serde_json::from_slice(&output_bytes)?
};
// We pop the titles, so we need this vector reversed.
output.titles.reverse();
let title_len = output.titles.len();
let selected = loop {
let Some(title) = output.titles.pop() else {
break false;
};
if (title.locked || title.votes < 1) && title_len > 1 {
info!(
"DeArrow: Skipping title {:#?}, as it is not good enough",
title.value
);
// Skip titles that are not “good” enough.
continue;
}
update_title(&info, &title.value, vm);
break true;
};
if !selected && title_len != 0 {
// No title was selected, even though we had some titles.
// Just pick the first one in this case.
update_title(&info, &output.titles[0].value, vm);
}
Ok(info)
}
#[derive(thiserror::Error, Debug)]
pub enum Error {
#[error("Failed to access the DeArrow api: {0}")]
Get(#[from] curl::Error),
#[error("Failed to deserialize a api json return object: {0}")]
Deserialize(#[from] serde_json::Error),
}
fn update_title(info: &PyRef<PyDict>, new_title: &str, vm: &VirtualMachine) {
assert!(!info.contains_key("original_title", vm));
if let Ok(old_title) = info.get_item("title", vm) {
warn!(
"DeArrow: Updating title from {:#?} to {:#?}",
pydict_cast!(@ref old_title, PyStr).as_str(),
new_title
);
info.set_item("original_title", old_title, vm)
.expect("We checked, it is a new key");
} else {
warn!("DeArrow: Setting title to {new_title:#?}");
}
let cleaned_title = {
// NOTE(@bpeetz): DeArrow uses `>` as a “Don't format the next word” mark.
// They should be removed, if one does not use a auto-formatter. <2025-06-16>
new_title.replace('>', "")
};
info.set_item("title", vm.new_pyobj(cleaned_title), vm)
.expect("This should work?");
}
#[derive(Serialize, Deserialize)]
/// See: <https://wiki.sponsor.ajay.app/w/API_Docs/DeArrow>
struct DeArrowApi {
titles: Vec<Title>,
thumbnails: Vec<Thumbnail>,
#[serde(alias = "randomTime")]
random_time: Option<f64>,
#[serde(alias = "videoDuration")]
video_duration: Option<f64>,
#[serde(alias = "casualVotes")]
casual_votes: Vec<CasualVote>,
}
#[derive(Serialize, Deserialize)]
struct CasualVote {
id: String,
count: u32,
title: String,
}
#[derive(Serialize, Deserialize)]
struct Title {
/// Note: Titles will sometimes contain > before a word.
/// This tells the auto-formatter to not format a word.
/// If you have no auto-formatter, you can ignore this and replace it with an empty string
#[serde(alias = "title")]
value: String,
original: bool,
votes: u64,
locked: bool,
#[serde(alias = "UUID")]
uuid: String,
/// only present if requested
#[serde(alias = "userID")]
user_id: Option<String>,
}
#[derive(Serialize, Deserialize)]
struct Thumbnail {
// null if original is true
timestamp: Option<f64>,
original: bool,
votes: u64,
locked: bool,
#[serde(alias = "UUID")]
uuid: String,
/// only present if requested
#[serde(alias = "userID")]
user_id: Option<String>,
}
|
