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/target
*.db*
.env
/videos

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[package]
name = "almond"
version = "0.2.0"
edition = "2024"
[dependencies]
axum = { version = "0.8.3", features = ["macros"] }
dotenvy = "0.15.7"
regex = "1.11.1"
serde = { version = "1.0.219", features = ["derive"] }
serde_json = "1.0.140"
sha3 = "0.10.8"
sqlx = { version = "0.8.3", features = [
"postgres",
"runtime-tokio",
"sqlite",
"macros",
] }
thiserror = "2.0.12"
tokio = { version = "1.44.2", features = ["full"] }
toml = "0.8.20"
tracing = "0.1.41"
tracing-subscriber = "0.3.19"
url = "2.5.4"
uuid = { version = "1.16.0", features = ["v4"] }

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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>.

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# Almond API
**TODO:** Finish this README.
Almond v2 now uses an API instead of being merged as frontend routes in a web app.
This allows developers to create custom clients for it.
## Requirements
You can download binary builds in the [Releases](https://git.roaming97.com/Almond/api/releases) page and just run it in your server or locally.
However, if you prefer to build a binary for your system, you must have [Rust](https://www.rust-lang.org/tools/install) installed and have the build configured to your needs. **This option is for developers, it is assumed that you know what you're doing.**
- [yt-dlp](https://github.com/yt-dlp/yt-dlp/) - for downloading YouTube videos, does most of the heavy lifting. Install options are listed [there too](https://github.com/yt-dlp/yt-dlp?tab=readme-ov-file#installation).
- [yt-dlp-returnyoutubedislike](https://github.com/pukkandan/yt-dlp-returnyoutubedislike) - for adding ReturnYouTubeDislike information to a video's information JSON instead of adding an additional request to the API.

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host = "127.0.0.1"
port = 3000
password = "almond12345"
videos_per_page = 10

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CREATE TABLE video (
"id" INTEGER NOT NULL,
"url" TEXT NOT NULL,
"youtube_id" TEXT NOT NULL,
"title" TEXT NOT NULL,
"description" TEXT NOT NULL,
"author" TEXT NOT NULL,
"author_id" TEXT NOT NULL,
"author_url" TEXT NOT NULL,
"views" INTEGER NOT NULL,
"upload_date" TEXT NOT NULL,
"likes" INTEGER,
"dislikes" INTEGER,
"file_name" TEXT NOT NULL,
"file_size" INTEGER NOT NULL,
"sha256" TEXT NOT NULL,
"thumbnail" TEXT NOT NULL,
PRIMARY KEY("id")
);

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#[derive(Debug, Default, Serialize, Deserialize, Clone)]
pub struct Channel;

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use serde::{Deserialize, Serialize};
#[derive(Debug, Default, Serialize, Deserialize, Clone)]
pub enum CommentFlags {
Uploader,
Verified,
Hearted,
Pinned,
#[default]
None,
}
#[derive(Debug, Default, Serialize, Deserialize, Clone)]
pub struct Comment {
pub video_id: String,
pub parent: String,
pub text: String,
pub like_count: i64,
pub author_id: String,
pub author: String,
pub author_thumbnail: Option<String>,
pub author_url: Option<String>,
pub timestamp: i64,
pub flags: CommentFlags,
}

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use std::{fs, io, path::Path};
use serde::{Deserialize, Serialize};
use sqlx::SqlitePool;
use thiserror::Error;
use crate::video::Video;
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Config {
pub host: String,
pub port: u16,
pub password: Option<String>,
pub videos_per_page: usize,
}
impl Default for Config {
fn default() -> Self {
Self {
host: "0.0.0.0".into(),
port: 3000,
password: None,
videos_per_page: 10,
}
}
}
/// This controls an instance and its state.
#[derive(Debug, Clone)]
pub struct Instance {
pub config: Config,
pub pool: SqlitePool,
}
#[derive(Debug, Error)]
pub enum NewInstanceError {
#[error("Failed to open TOML configuration file")]
ConfigLoad(#[from] io::Error),
#[error("Could not parse TOML configuration: {0}")]
ConfigParse(#[from] toml::de::Error),
#[error("Failed to fetch entries from database: {0}")]
Populate(#[from] sqlx::Error),
}
impl Instance {
pub async fn new<P>(config_file: P, database_url: &str) -> Result<Self, NewInstanceError>
where
P: AsRef<Path>,
{
let config = toml::from_str(&fs::read_to_string(config_file)?)?;
let pool = SqlitePool::connect(database_url).await?;
Ok(Self { config, pool })
}
pub async fn fetch_videos(&self) -> Result<Vec<Video>, sqlx::Error> {
sqlx::query_as!(Video, "SELECT * FROM video")
.fetch_all(&self.pool)
.await
}
}

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use axum::{
Router,
routing::{get, post},
};
use instance::Instance;
use routes::{list_entries, upload_video};
use tokio::signal;
use tracing::info;
mod instance;
mod routes;
mod video;
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
tracing_subscriber::fmt::init();
dotenvy::dotenv()?;
let database_url = std::env::var("DATABASE_URL").unwrap_or_else(|_| "sqlite://app.db".into());
let instance = Instance::new("almond.toml", &database_url).await?;
info!(
"Instance configuration:\n+ Host: {}\n+ Port: {}\n+ Password: {:?}\n+ Videos per page: {}",
instance.config.host,
instance.config.port,
instance.config.password,
instance.config.videos_per_page
);
let address = format!("{}:{}", instance.config.host, instance.config.port);
let almond = Router::new()
.route("/", get(list_entries))
.route("/upload", post(upload_video))
.with_state(instance);
let listener = tokio::net::TcpListener::bind(address).await?;
axum::serve(listener, almond.into_make_service())
.with_graceful_shutdown(shutdown_signal())
.await?;
Ok(())
}
async fn shutdown_signal() {
let ctrl_c = async {
signal::ctrl_c()
.await
.expect("Failed to install Ctrl+C handler");
};
#[cfg(unix)]
let terminate = async {
signal::unix::signal(signal::unix::SignalKind::terminate())
.expect("failed to install signal handler")
.recv()
.await;
};
#[cfg(not(unix))]
let terminate = std::future::pending::<()>();
tokio::select! {
() = ctrl_c => {},
() = terminate => {},
}
}

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use axum::{
Json, debug_handler,
extract::{Query, State},
http::StatusCode,
};
use serde::{Deserialize, Serialize};
use tracing::{error, info};
use crate::{
instance::Instance,
video::{Video, VideoError},
};
#[derive(Debug, Deserialize)]
pub struct ListEntriesQuery {
page: Option<usize>,
}
#[derive(Debug, Serialize)]
pub struct ListEntriesResponse {
videos: Vec<Video>,
page: usize,
per_page: usize,
total: usize,
pages: usize,
}
/// Retrieve video list as JSON (paged)
#[debug_handler]
pub async fn list_entries(
State(state): State<Instance>,
Query(query): Query<ListEntriesQuery>,
) -> Result<Json<ListEntriesResponse>, StatusCode> {
let Ok(videos) = state.fetch_videos().await else {
error!("Could not fetch videos from database!");
return Err(StatusCode::INTERNAL_SERVER_ERROR);
};
let page = query.page.unwrap_or(1).max(1);
let per_page = state.config.videos_per_page;
let total = videos.len();
let pages = (total + per_page - 1).div_ceil(per_page);
let start = per_page * (page - 1);
let end = (start + per_page).min(total);
let videos = if start < total {
videos[start..end].to_vec()
} else {
vec![]
};
Ok(Json(ListEntriesResponse {
videos,
page,
per_page,
total,
pages,
}))
}
#[derive(Debug, Deserialize)]
pub struct UploadVideoQuery {
url: String,
cookie: Option<String>,
}
/// Upload a video to the database
pub async fn upload_video(
State(state): State<Instance>,
Query(query): Query<UploadVideoQuery>,
) -> StatusCode {
let Ok(videos) = state.fetch_videos().await else {
error!("Could not fetch videos from database!");
return StatusCode::INTERNAL_SERVER_ERROR;
};
let new_video = Video::from_url(&query.url, videos.len(), query.cookie.as_deref())
.await
.map_err(|e| match e {
VideoError::InvalidUrl | VideoError::UrlParse(_) => StatusCode::BAD_REQUEST,
_ => StatusCode::INTERNAL_SERVER_ERROR,
});
match new_video {
Ok(video) => {
match sqlx::query!(
r#"
INSERT INTO video (
id, url, youtube_id, title, description, author, author_id, author_url,
views, upload_date, likes, dislikes, file_name, file_size, sha256, thumbnail
)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
"#,
video.id,
video.url,
video.youtube_id,
video.title,
video.description,
video.author,
video.author_id,
video.author_url,
video.views,
video.upload_date,
video.likes,
video.dislikes,
video.file_name,
video.file_size,
video.sha256,
video.thumbnail,
)
.execute(&state.pool)
.await
{
Ok(result) => {
info!("Inserted video to database successfully! {result:?}");
StatusCode::OK
}
Err(e) => {
error!("Error inserting video to database: {e:?}");
StatusCode::INTERNAL_SERVER_ERROR
}
}
}
Err(status) => status,
}
}

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use std::{fs, io, path::Path};
use regex::Regex;
use serde::{Deserialize, Serialize};
use serde_json::Value;
use sha3::{Digest, Sha3_256};
use thiserror::Error;
use tracing::{error, info, warn};
use url::{ParseError, Url};
#[derive(Debug, Error)]
pub enum VideoError {
#[error("Failed to parse URL: {0}")]
UrlParse(#[from] ParseError),
#[error("URL is an invalid YouTube URL")]
InvalidUrl,
#[error("IO Error: {0}")]
IOError(#[from] io::Error),
#[error("Could not serialize info JSON: {0}")]
SerializeInfoJSON(#[from] serde_json::Error),
#[error("Failed to parse value from key '{0}'")]
JsonKey(String),
#[error("No video file was found for target")]
MissingVideoFile,
}
#[derive(Debug, Default, Serialize, Deserialize, Clone)]
pub struct Video {
pub id: i64,
pub url: String,
pub youtube_id: String,
pub title: String,
pub description: String,
pub author: String,
pub author_id: String,
pub author_url: String,
pub views: i64,
pub upload_date: String,
pub likes: Option<i64>,
pub dislikes: Option<i64>,
pub file_name: String,
pub file_size: i64,
pub sha256: String,
pub thumbnail: String,
// pub comments: Vec<Comment>
}
impl Video {
async fn yt_dlp_task(url: &str, cookie: Option<&str>) -> Result<(), VideoError> {
let mut args = vec![
"--write-info-json",
"--write-thumbnail",
"--write-description",
"--write-comments",
"--no-playlist",
"--use-postprocessor",
"ReturnYoutubeDislike:when=pre_process",
"-v",
url,
];
if let Some(cookie) = cookie {
args.append(&mut vec!["--cookies", cookie]);
}
args.append(&mut vec![
"-o",
"videos/%(id)s/%(id)s.%(ext)s",
"-f",
"bestvideo[ext=mkv]+bestaudio[ext=m4a]/bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo*+bestaudio/best",
]);
let mut child = tokio::process::Command::new("yt-dlp").args(args).spawn()?;
info!("yt-dlp task invoked");
child.wait().await?;
info!("yt-dlp task completed successfully");
Ok(())
}
fn is_url_valid(url: &Url) -> bool {
let re = Regex::new(r"^((?:https?:)?\/\/)?((?:www|m)\.)?((?:youtube(?:-nocookie)?\.com|youtu.be))(\/(?:[\w\-]+\?v=|embed\/|live\/|v\/)?)([\w\-]+)(\S+)?$").unwrap();
if !re.is_match(url.as_str()) {
error!("YouTube URL RegEx match failed!");
return false;
}
true
}
fn get_video_id(url: &Url) -> Option<String> {
let mut pairs = url.query_pairs();
let Some(query_v) = pairs.find(|(key, _)| key == "v") else {
error!("Could not find 'v' query parameter in URL!");
return None;
};
Some(query_v.1.to_string())
}
#[allow(clippy::cast_possible_wrap)]
pub async fn from_url(url: &str, id: usize, cookie: Option<&str>) -> Result<Self, VideoError> {
let url = Url::parse(url)?;
info!("Parsed argument as URL");
if !Self::is_url_valid(&url) {
error!("URL is an invalid YouTube video!");
return Err(VideoError::InvalidUrl);
}
let youtube_id = Self::get_video_id(&url).ok_or(VideoError::InvalidUrl)?;
info!("URL is valid YouTube video, got ID '{youtube_id}'");
let dir = format!("videos/{youtube_id}");
let file_stem = format!("{dir}/{youtube_id}");
if !Path::new(&dir).exists() {
fs::create_dir(dir)?;
}
let info_json = format!("{file_stem}.info.json");
let info_json = Path::new(&info_json);
// ? Uploading a video doesn't mean updating it, make a PUT route for that later
if info_json.exists() {
warn!("Video already exists, skipping yt-dlp task");
} else {
Self::yt_dlp_task(url.as_str(), cookie).await?;
}
let info: Value = serde_json::from_str(&fs::read_to_string(info_json)?)?;
// info!("Info JSON for {youtube_id}\n{info}");
let get_info_value = |key: &str| {
info.get(key)
.ok_or_else(|| VideoError::JsonKey(key.to_string()))
.unwrap()
};
let get_ryd_value = |key: &str| {
info["RYD"]["response"]
.get(key)
.ok_or_else(|| VideoError::JsonKey(key.to_string()))
.unwrap()
};
let id = id as i64;
let url = url.to_string();
let description = format!("{file_stem}.description");
let title = get_info_value("title").to_string();
let author = get_info_value("uploader").to_string();
let views = get_info_value("view_count").as_i64().unwrap_or(-1);
// Use RYD field from info JSON
let likes = get_ryd_value("likes").as_i64();
let dislikes = get_ryd_value("dislikes").as_i64();
let possible_extensions = ["mkv", "mp4", "webm"];
let mut buffer = None;
let mut file_name = String::new();
for ext in possible_extensions {
file_name = format!("{file_stem}.{ext}");
let path = Path::new(&file_name);
if path.exists() {
info!("File '{}' found", path.display());
buffer = Some(fs::read(path)?);
break;
}
warn!("File '{}' not found", path.display());
}
let Some(buffer) = buffer else {
error!("No video file found for {youtube_id}!");
return Err(VideoError::MissingVideoFile);
};
let sha256 = format!("{:x}", Sha3_256::digest(&buffer));
let file_size = buffer.len() as i64;
let author_id = get_info_value("channel_id").to_string();
let author_url = get_info_value("channel_url").to_string();
let upload_date = get_info_value("upload_date").to_string();
let thumbnail = format!("{file_stem}.webp");
let video = Self {
id,
url,
youtube_id,
title,
description,
author,
author_id,
author_url,
views,
upload_date,
likes,
dislikes,
file_name,
file_size,
sha256,
thumbnail,
};
info!("Video entry so far: {video:?}");
Ok(video)
}
}