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extern crate bincode;
extern crate chrono;
extern crate serde;
#[macro_use]
extern crate serde_derive;
pub mod torrent {
pub use self::ver_fa1b6f as current;
pub use self::current::Session;
use bincode;
#[derive(Serialize, Deserialize, Clone)]
pub struct Bitfield {
pub len: u64,
pub data: Box<[u8]>,
}
pub fn load(data: &[u8]) -> Option<Session> {
if let Ok(m) = bincode::deserialize::<ver_fa1b6f::Session>(data) {
Some(m)
} else if let Ok(m) = bincode::deserialize::<ver_6e27af::Session>(data) {
Some(m.migrate())
} else if let Ok(m) = bincode::deserialize::<ver_249b1b::Session>(data) {
Some(m.migrate())
} else if let Ok(m) = bincode::deserialize::<ver_5f166d::Session>(data) {
Some(m.migrate())
} else if let Ok(m) = bincode::deserialize::<ver_8e1121::Session>(data) {
Some(m.migrate())
} else {
None
}
}
impl Session {
pub fn migrate(self) -> Self {
self
}
}
pub mod ver_fa1b6f {
use super::Bitfield;
use chrono::{DateTime, Utc};
use std::path::PathBuf;
#[derive(Serialize, Deserialize)]
pub struct Session {
pub info: Info,
pub pieces: Bitfield,
pub uploaded: u64,
pub downloaded: u64,
pub status: Status,
pub path: Option<String>,
pub priority: u8,
pub priorities: Vec<u8>,
pub created: DateTime<Utc>,
pub throttle_ul: Option<i64>,
pub throttle_dl: Option<i64>,
pub trackers: Vec<String>,
}
#[derive(Clone, Serialize, Deserialize)]
pub struct Info {
pub name: String,
pub announce: Option<String>,
pub creator: Option<String>,
pub comment: Option<String>,
pub piece_len: u32,
pub total_len: u64,
pub hashes: Vec<Vec<u8>>,
pub hash: [u8; 20],
pub files: Vec<File>,
pub private: bool,
pub be_name: Option<Vec<u8>>,
pub piece_idx: Vec<(usize, u64)>,
}
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct File {
pub path: PathBuf,
pub length: u64,
}
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct Status {
pub paused: bool,
pub validating: bool,
pub error: Option<String>,
pub state: StatusState,
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub enum StatusState {
Magnet,
Incomplete,
Complete,
}
}
pub mod ver_6e27af {
pub use super::ver_fa1b6f as next;
pub use self::next::{File, Status, StatusState};
use super::Bitfield;
use chrono::{DateTime, Utc};
#[derive(Serialize, Deserialize)]
pub struct Session {
pub info: Info,
pub pieces: Bitfield,
pub uploaded: u64,
pub downloaded: u64,
pub status: Status,
pub path: Option<String>,
pub priority: u8,
pub priorities: Vec<u8>,
pub created: DateTime<Utc>,
pub throttle_ul: Option<i64>,
pub throttle_dl: Option<i64>,
pub trackers: Vec<String>,
}
#[derive(Clone, Serialize, Deserialize)]
pub struct Info {
pub name: String,
pub announce: Option<String>,
pub piece_len: u32,
pub total_len: u64,
pub hashes: Vec<Vec<u8>>,
pub hash: [u8; 20],
pub files: Vec<File>,
pub private: bool,
pub be_name: Option<Vec<u8>>,
pub piece_idx: Vec<(usize, u64)>,
}
impl Session {
pub fn migrate(self) -> super::current::Session {
next::Session {
info: next::Info {
comment: None,
creator: None,
name: self.info.name,
announce: self.info.announce,
piece_len: self.info.piece_len,
total_len: self.info.total_len,
hashes: self.info.hashes,
hash: self.info.hash,
files: self.info.files,
private: self.info.private,
be_name: self.info.be_name,
piece_idx: self.info.piece_idx,
},
pieces: self.pieces,
uploaded: self.uploaded,
downloaded: self.downloaded,
status: self.status,
path: self.path,
priority: self.priority,
priorities: self.priorities,
created: self.created,
throttle_ul: self.throttle_ul,
throttle_dl: self.throttle_dl,
trackers: self.trackers,
}.migrate()
}
}
}
pub mod ver_249b1b {
pub use super::ver_6e27af as next;
use super::Bitfield;
pub use self::next::{File, Info, Status, StatusState};
use chrono::{DateTime, Utc};
#[derive(Serialize, Deserialize)]
pub struct Session {
pub info: Info,
pub pieces: Bitfield,
pub uploaded: u64,
pub downloaded: u64,
pub status: Status,
pub path: Option<String>,
pub priority: u8,
pub priorities: Vec<u8>,
pub created: DateTime<Utc>,
pub throttle_ul: Option<i64>,
pub throttle_dl: Option<i64>,
}
impl Session {
pub fn migrate(self) -> super::current::Session {
let mut trackers = Vec::new();
if let Some(ref url) = self.info.announce {
trackers.push(url.to_owned());
}
next::Session {
info: self.info,
pieces: self.pieces,
uploaded: self.uploaded,
downloaded: self.downloaded,
status: self.status,
path: self.path,
priority: self.priority,
priorities: self.priorities,
created: self.created,
throttle_ul: self.throttle_ul,
throttle_dl: self.throttle_dl,
trackers,
}.migrate()
}
}
}
pub mod ver_5f166d {
use super::ver_249b1b as next;
use super::Bitfield;
use chrono::{DateTime, Utc};
#[derive(Serialize, Deserialize)]
pub struct Session {
pub info: Info,
pub pieces: Bitfield,
pub uploaded: u64,
pub downloaded: u64,
pub status: Status,
pub path: Option<String>,
pub priority: u8,
pub priorities: Vec<u8>,
pub created: DateTime<Utc>,
pub throttle_ul: Option<i64>,
pub throttle_dl: Option<i64>,
}
#[derive(Serialize, Deserialize)]
pub enum Status {
Pending,
Paused,
Leeching,
Idle,
Seeding,
Validating,
Magnet,
DiskError,
}
#[derive(Serialize, Deserialize)]
pub struct Info {
pub name: String,
pub announce: String,
pub piece_len: u32,
pub total_len: u64,
pub hashes: Vec<Vec<u8>>,
pub hash: [u8; 20],
pub files: Vec<next::File>,
pub private: bool,
pub be_name: Option<Vec<u8>>,
}
impl Session {
pub fn migrate(self) -> super::current::Session {
let mut state = next::StatusState::Complete;
for i in 0..self.pieces.len - 1 {
if !(self.pieces.data[i as usize]) != 0 {
state = next::StatusState::Incomplete;
break;
}
}
if self.pieces.data.len() > 0 {
match (self.pieces.len % 8, *self.pieces.data.last().unwrap()) {
(0, 0xFF)
| (7, 0xFE)
| (6, 0xFC)
| (5, 0xF8)
| (4, 0xF0)
| (3, 0xE0)
| (2, 0xC0)
| (1, 0x80) => {}
_ => state = next::StatusState::Incomplete,
}
}
let paused = match self.status {
Status::Paused => true,
_ => false,
};
let piece_idx = generate_piece_idx(
self.info.hashes.len(),
self.info.piece_len as u64,
&self.info.files,
);
next::Session {
info: next::Info {
name: self.info.name,
announce: if self.info.announce == "" {
None
} else {
Some(self.info.announce)
},
piece_len: self.info.piece_len,
total_len: self.info.total_len,
hashes: self.info.hashes,
hash: self.info.hash,
files: self.info.files,
private: self.info.private,
be_name: self.info.be_name,
piece_idx,
},
pieces: self.pieces,
uploaded: self.uploaded,
downloaded: self.downloaded,
status: next::Status {
paused,
state,
validating: false,
error: None,
},
path: self.path,
priority: self.priority,
priorities: self.priorities,
created: self.created,
throttle_ul: self.throttle_ul,
throttle_dl: self.throttle_dl,
}.migrate()
}
}
fn generate_piece_idx(pieces: usize, pl: u64, files: &[next::File]) -> Vec<(usize, u64)> {
let mut piece_idx = Vec::with_capacity(pieces);
let mut file = 0;
let mut offset = 0u64;
for _ in 0..pieces {
piece_idx.push((file, offset));
offset += pl;
while file < files.len() && offset >= files[file].length {
offset -= files[file].length;
file += 1;
}
}
piece_idx
}
}
pub mod ver_8e1121 {
use super::ver_5f166d as next;
use super::Bitfield;
use self::next::{Info, Status};
use chrono::{DateTime, Utc};
#[derive(Serialize, Deserialize)]
pub struct Session {
pub info: Info,
pub pieces: Bitfield,
pub uploaded: u64,
pub downloaded: u64,
pub status: Status,
pub path: Option<String>,
pub wanted: Bitfield,
pub priority: u8,
pub priorities: Vec<u8>,
pub created: DateTime<Utc>,
pub throttle_ul: Option<i64>,
pub throttle_dl: Option<i64>,
}
impl Session {
pub fn migrate(self) -> super::current::Session {
next::Session {
info: self.info,
pieces: self.pieces,
uploaded: self.uploaded,
downloaded: self.downloaded,
status: self.status,
path: self.path,
priority: self.priority,
priorities: self.priorities,
created: self.created,
throttle_ul: self.throttle_ul,
throttle_dl: self.throttle_dl,
}.migrate()
}
}
}
}