1188 lines
48 KiB
Rust
1188 lines
48 KiB
Rust
/*
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* meli - mailbox module.
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*
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* Copyright 2017 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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use super::{MaildirMailbox, MaildirOp, MaildirPathTrait};
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use crate::backends::{RefreshEventKind::*, *};
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use crate::conf::AccountSettings;
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use crate::email::{Envelope, EnvelopeHash, Flag};
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use crate::error::{MeliError, Result};
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use crate::shellexpand::ShellExpandTrait;
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use futures::prelude::Stream;
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use memmap::{Mmap, Protection};
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extern crate notify;
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use self::notify::{watcher, DebouncedEvent, RecursiveMode, Watcher};
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use std::time::Duration;
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use std::collections::{hash_map::DefaultHasher, HashMap, HashSet};
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use std::ffi::OsStr;
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use std::fs;
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use std::hash::{Hash, Hasher};
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use std::io::{self, Read, Write};
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use std::ops::{Deref, DerefMut};
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use std::os::unix::fs::PermissionsExt;
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use std::path::{Component, Path, PathBuf};
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use std::sync::mpsc::channel;
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use std::sync::{Arc, Mutex};
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#[derive(Clone, Debug, PartialEq)]
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pub(super) enum PathMod {
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Path(PathBuf),
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Hash(EnvelopeHash),
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}
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#[derive(Debug, Default)]
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pub struct MaildirPath {
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pub(super) buf: PathBuf,
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pub(super) modified: Option<PathMod>,
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pub(super) removed: bool,
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}
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impl Deref for MaildirPath {
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type Target = PathBuf;
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fn deref(&self) -> &PathBuf {
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assert!(!(self.removed && self.modified.is_none()));
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&self.buf
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}
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}
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impl DerefMut for MaildirPath {
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fn deref_mut(&mut self) -> &mut PathBuf {
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assert!(!(self.removed && self.modified.is_none()));
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&mut self.buf
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}
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}
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impl From<PathBuf> for MaildirPath {
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fn from(val: PathBuf) -> MaildirPath {
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MaildirPath {
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buf: val,
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modified: None,
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removed: false,
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}
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}
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}
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#[derive(Debug, Default)]
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pub struct HashIndex {
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index: HashMap<EnvelopeHash, MaildirPath>,
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hash: MailboxHash,
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}
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impl Deref for HashIndex {
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type Target = HashMap<EnvelopeHash, MaildirPath>;
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fn deref(&self) -> &HashMap<EnvelopeHash, MaildirPath> {
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&self.index
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}
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}
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impl DerefMut for HashIndex {
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fn deref_mut(&mut self) -> &mut HashMap<EnvelopeHash, MaildirPath> {
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&mut self.index
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}
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}
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pub type HashIndexes = Arc<Mutex<HashMap<MailboxHash, HashIndex>>>;
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/// Maildir backend https://cr.yp.to/proto/maildir.html
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#[derive(Debug)]
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pub struct MaildirType {
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name: String,
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mailboxes: HashMap<MailboxHash, MaildirMailbox>,
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mailbox_index: Arc<Mutex<HashMap<EnvelopeHash, MailboxHash>>>,
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hash_indexes: HashIndexes,
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event_consumer: BackendEventConsumer,
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path: PathBuf,
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}
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macro_rules! path_is_new {
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($path:expr) => {
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if $path.is_dir() {
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false
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} else {
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let mut iter = $path.components().rev();
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iter.next();
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iter.next() == Some(Component::Normal(OsStr::new("new")))
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}
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};
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}
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macro_rules! get_path_hash {
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($path:expr) => {{
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let mut path = $path.clone();
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if path.is_dir() {
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if path.ends_with("cur") | path.ends_with("new") {
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path.pop();
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}
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} else {
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path.pop();
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path.pop();
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};
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crate::get_path_hash!(path)
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}};
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}
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pub(super) fn get_file_hash(file: &Path) -> EnvelopeHash {
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/*
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let mut buf = Vec::with_capacity(2048);
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let mut f = fs::File::open(&file).unwrap_or_else(|_| panic!("Can't open {}", file.display()));
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f.read_to_end(&mut buf)
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.unwrap_or_else(|_| panic!("Can't read {}", file.display()));
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let mut hasher = DefaultHasher::default();
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hasher.write(&buf);
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hasher.finish()
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*/
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let mut hasher = DefaultHasher::default();
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file.hash(&mut hasher);
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hasher.finish()
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}
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pub fn move_to_cur(p: PathBuf) -> Result<PathBuf> {
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let mut new = p.clone();
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let file_name = p.to_string_lossy();
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let slash_pos = file_name.bytes().rposition(|c| c == b'/').unwrap() + 1;
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new.pop();
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new.pop();
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new.push("cur");
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new.push(&file_name[slash_pos..]);
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if !file_name.ends_with(":2,") {
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new.set_extension(":2,");
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}
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debug!("moved to cur: {}", new.display());
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fs::rename(&p, &new)?;
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Ok(new)
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}
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impl MailBackend for MaildirType {
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fn capabilities(&self) -> MailBackendCapabilities {
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const CAPABILITIES: MailBackendCapabilities = MailBackendCapabilities {
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is_async: false,
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is_remote: false,
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supports_search: false,
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extensions: None,
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supports_tags: false,
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supports_submission: false,
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};
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CAPABILITIES
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}
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fn is_online(&self) -> ResultFuture<()> {
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Ok(Box::pin(async { Ok(()) }))
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}
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fn mailboxes(&self) -> ResultFuture<HashMap<MailboxHash, Mailbox>> {
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let res = Ok(self
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.mailboxes
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.iter()
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.map(|(h, f)| (*h, BackendMailbox::clone(f)))
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.collect());
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Ok(Box::pin(async { res }))
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}
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fn fetch(
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&mut self,
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mailbox_hash: MailboxHash,
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) -> Result<core::pin::Pin<Box<dyn Stream<Item = Result<Vec<Envelope>>> + Send + 'static>>>
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{
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let mailbox: &MaildirMailbox = &self.mailboxes[&mailbox_hash];
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let unseen = mailbox.unseen.clone();
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let total = mailbox.total.clone();
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let path: PathBuf = mailbox.fs_path().into();
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let root_path = self.path.to_path_buf();
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let map = self.hash_indexes.clone();
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let mailbox_index = self.mailbox_index.clone();
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super::stream::MaildirStream::new(
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&self.name,
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mailbox_hash,
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unseen,
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total,
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path,
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root_path,
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map,
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mailbox_index,
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)
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}
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fn refresh(&mut self, mailbox_hash: MailboxHash) -> ResultFuture<()> {
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let cache_dir = xdg::BaseDirectories::with_profile("meli", &self.name).unwrap();
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let account_hash = {
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let mut hasher = DefaultHasher::default();
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hasher.write(self.name.as_bytes());
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hasher.finish()
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};
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let sender = self.event_consumer.clone();
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let mailbox: &MaildirMailbox = &self.mailboxes[&mailbox_hash];
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let path: PathBuf = mailbox.fs_path().into();
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let root_path = self.path.to_path_buf();
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let map = self.hash_indexes.clone();
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let mailbox_index = self.mailbox_index.clone();
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Ok(Box::pin(async move {
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let thunk = move |sender: &BackendEventConsumer| {
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debug!("refreshing");
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let mut path = path.clone();
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path.push("new");
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for d in path.read_dir()? {
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if let Ok(p) = d {
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move_to_cur(p.path()).ok().take();
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}
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}
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path.pop();
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path.push("cur");
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let iter = path.read_dir()?;
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let count = path.read_dir()?.count();
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let mut files: Vec<PathBuf> = Vec::with_capacity(count);
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for e in iter {
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let e = e.and_then(|x| {
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let path = x.path();
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Ok(path)
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})?;
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files.push(e);
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}
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let mut current_hashes = {
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let mut map = map.lock().unwrap();
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let map = map.entry(mailbox_hash).or_default();
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map.keys().cloned().collect::<HashSet<EnvelopeHash>>()
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};
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for file in files {
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let hash = get_file_hash(&file);
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{
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let mut map = map.lock().unwrap();
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let map = map.entry(mailbox_hash).or_default();
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if map.contains_key(&hash) {
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map.remove(&hash);
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current_hashes.remove(&hash);
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continue;
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}
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(*map).insert(hash, PathBuf::from(&file).into());
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}
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if let Ok(mut env) = Envelope::from_bytes(
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unsafe { &Mmap::open_path(&file, Protection::Read)?.as_slice() },
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None,
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) {
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env.set_hash(hash);
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mailbox_index
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.lock()
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.unwrap()
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.insert(env.hash(), mailbox_hash);
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let file_name = file.strip_prefix(&root_path).unwrap().to_path_buf();
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if let Ok(cached) = cache_dir.place_cache_file(file_name) {
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/* place result in cache directory */
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let f = fs::File::create(cached)?;
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let metadata = f.metadata()?;
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let mut permissions = metadata.permissions();
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permissions.set_mode(0o600); // Read/write for owner only.
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f.set_permissions(permissions)?;
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let writer = io::BufWriter::new(f);
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bincode::serialize_into(writer, &env)?;
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}
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(sender)(
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account_hash,
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BackendEvent::Refresh(RefreshEvent {
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account_hash,
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mailbox_hash,
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kind: Create(Box::new(env)),
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}),
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);
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} else {
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debug!(
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"DEBUG: hash {}, path: {} couldn't be parsed",
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hash,
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file.as_path().display()
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);
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continue;
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}
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}
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for ev in current_hashes.into_iter().map(|h| {
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BackendEvent::Refresh(RefreshEvent {
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account_hash,
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mailbox_hash,
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kind: Remove(h),
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})
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}) {
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(sender)(account_hash, ev);
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}
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Ok(())
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};
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if let Err(err) = thunk(&sender) {
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(sender)(
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account_hash,
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BackendEvent::Refresh(RefreshEvent {
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account_hash,
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mailbox_hash,
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kind: Failure(err),
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}),
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);
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}
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Ok(())
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}))
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}
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fn watch(&self) -> ResultFuture<()> {
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let sender = self.event_consumer.clone();
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let (tx, rx) = channel();
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let mut watcher = watcher(tx, Duration::from_secs(2)).unwrap();
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let account_hash = {
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let mut hasher = DefaultHasher::default();
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hasher.write(self.name.as_bytes());
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hasher.finish()
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};
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let root_path = self.path.to_path_buf();
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watcher.watch(&root_path, RecursiveMode::Recursive).unwrap();
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let cache_dir = xdg::BaseDirectories::with_profile("meli", &self.name).unwrap();
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debug!("watching {:?}", root_path);
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let hash_indexes = self.hash_indexes.clone();
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let mailbox_index = self.mailbox_index.clone();
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let root_mailbox_hash: MailboxHash = self
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.mailboxes
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.values()
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.find(|m| m.parent.is_none())
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.map(|m| m.hash())
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.unwrap();
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let mailbox_counts = self
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.mailboxes
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.iter()
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.map(|(&k, v)| (k, (v.unseen.clone(), v.total.clone())))
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.collect::<HashMap<MailboxHash, (Arc<Mutex<usize>>, Arc<Mutex<usize>>)>>();
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Ok(Box::pin(async move {
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// Move `watcher` in the closure's scope so that it doesn't get dropped.
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let _watcher = watcher;
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loop {
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match rx.recv() {
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/*
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* Event types:
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*
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* pub enum RefreshEventKind {
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* Update(EnvelopeHash, Envelope), // Old hash, new envelope
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* Create(Envelope),
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* Remove(EnvelopeHash),
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* Rescan,
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* }
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*/
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Ok(event) => match event {
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/* Create */
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DebouncedEvent::Create(mut pathbuf) => {
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debug!("DebouncedEvent::Create(path = {:?}", pathbuf);
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if path_is_new!(pathbuf) {
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debug!("path_is_new");
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/* This creates a Rename event that we will receive later */
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pathbuf = match move_to_cur(pathbuf) {
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Ok(p) => p,
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Err(e) => {
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debug!("error: {}", e.to_string());
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continue;
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}
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};
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}
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let mailbox_hash = get_path_hash!(pathbuf);
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let file_name = pathbuf
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.as_path()
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.strip_prefix(&root_path)
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.unwrap()
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.to_path_buf();
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if let Ok(env) = add_path_to_index(
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&hash_indexes,
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mailbox_hash,
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pathbuf.as_path(),
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&cache_dir,
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file_name,
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) {
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mailbox_index
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.lock()
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.unwrap()
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.insert(env.hash(), mailbox_hash);
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debug!(
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"Create event {} {} {}",
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env.hash(),
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env.subject(),
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pathbuf.display()
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);
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if !env.is_seen() {
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*mailbox_counts[&mailbox_hash].0.lock().unwrap() += 1;
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}
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*mailbox_counts[&mailbox_hash].1.lock().unwrap() += 1;
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(sender)(
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account_hash,
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BackendEvent::Refresh(RefreshEvent {
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account_hash,
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mailbox_hash,
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kind: Create(Box::new(env)),
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}),
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);
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}
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}
|
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/* Update */
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DebouncedEvent::NoticeWrite(pathbuf) | DebouncedEvent::Write(pathbuf) => {
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debug!("DebouncedEvent::Write(path = {:?}", &pathbuf);
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let mailbox_hash = get_path_hash!(pathbuf);
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let mut hash_indexes_lock = hash_indexes.lock().unwrap();
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let index_lock =
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&mut hash_indexes_lock.entry(mailbox_hash).or_default();
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let file_name = pathbuf
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.as_path()
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.strip_prefix(&root_path)
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.unwrap()
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.to_path_buf();
|
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/* Linear search in hash_index to find old hash */
|
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let old_hash: EnvelopeHash = {
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if let Some((k, v)) =
|
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index_lock.iter_mut().find(|(_, v)| *v.buf == pathbuf)
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{
|
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//TODO FIXME This doesn't make sense?
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*v = pathbuf.clone().into();
|
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*k
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} else {
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drop(hash_indexes_lock);
|
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/* Did we just miss a Create event? In any case, create
|
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* envelope. */
|
|
if let Ok(env) = add_path_to_index(
|
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&hash_indexes,
|
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mailbox_hash,
|
|
pathbuf.as_path(),
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&cache_dir,
|
|
file_name,
|
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) {
|
|
mailbox_index
|
|
.lock()
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.unwrap()
|
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.insert(env.hash(), mailbox_hash);
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash,
|
|
kind: Create(Box::new(env)),
|
|
}),
|
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);
|
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}
|
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continue;
|
|
}
|
|
};
|
|
let new_hash: EnvelopeHash = get_file_hash(pathbuf.as_path());
|
|
if index_lock.get_mut(&new_hash).is_none() {
|
|
debug!("write notice");
|
|
if let Ok(mut env) = Envelope::from_bytes(
|
|
unsafe {
|
|
&Mmap::open_path(&pathbuf, Protection::Read)?.as_slice()
|
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},
|
|
None,
|
|
) {
|
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env.set_hash(new_hash);
|
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debug!("{}\t{:?}", new_hash, &pathbuf);
|
|
debug!(
|
|
"hash {}, path: {:?} couldn't be parsed",
|
|
new_hash, &pathbuf
|
|
);
|
|
index_lock.insert(new_hash, pathbuf.into());
|
|
|
|
/* Send Write notice */
|
|
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash,
|
|
kind: Update(old_hash, Box::new(env)),
|
|
}),
|
|
);
|
|
}
|
|
}
|
|
}
|
|
/* Remove */
|
|
DebouncedEvent::NoticeRemove(pathbuf) | DebouncedEvent::Remove(pathbuf) => {
|
|
debug!("DebouncedEvent::Remove(path = {:?}", pathbuf);
|
|
let mailbox_hash = get_path_hash!(pathbuf);
|
|
let mut hash_indexes_lock = hash_indexes.lock().unwrap();
|
|
let index_lock = hash_indexes_lock.entry(mailbox_hash).or_default();
|
|
let hash: EnvelopeHash = if let Some((k, _)) =
|
|
index_lock.iter().find(|(_, v)| *v.buf == pathbuf)
|
|
{
|
|
*k
|
|
} else {
|
|
debug!("removed but not contained in index");
|
|
continue;
|
|
};
|
|
if let Some(ref modif) = &index_lock[&hash].modified {
|
|
match modif {
|
|
PathMod::Path(path) => debug!(
|
|
"envelope {} has modified path set {}",
|
|
hash,
|
|
path.display()
|
|
),
|
|
PathMod::Hash(hash) => debug!(
|
|
"envelope {} has modified path set {}",
|
|
hash,
|
|
&index_lock[&hash].buf.display()
|
|
),
|
|
}
|
|
index_lock.entry(hash).and_modify(|e| {
|
|
e.removed = false;
|
|
});
|
|
continue;
|
|
}
|
|
*mailbox_counts[&mailbox_hash].1.lock().unwrap() -= 1;
|
|
if !pathbuf.flags().contains(Flag::SEEN) {
|
|
*mailbox_counts[&mailbox_hash].0.lock().unwrap() -= 1;
|
|
}
|
|
|
|
index_lock.entry(hash).and_modify(|e| {
|
|
e.removed = true;
|
|
});
|
|
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash,
|
|
kind: Remove(hash),
|
|
}),
|
|
);
|
|
}
|
|
/* Envelope hasn't changed */
|
|
DebouncedEvent::Rename(src, dest) => {
|
|
debug!("DebouncedEvent::Rename(src = {:?}, dest = {:?})", src, dest);
|
|
let mailbox_hash = get_path_hash!(src);
|
|
let old_hash: EnvelopeHash = get_file_hash(src.as_path());
|
|
let new_hash: EnvelopeHash = get_file_hash(dest.as_path());
|
|
|
|
let mut hash_indexes_lock = hash_indexes.lock().unwrap();
|
|
let index_lock = hash_indexes_lock.entry(mailbox_hash).or_default();
|
|
let old_flags = src.flags();
|
|
let new_flags = dest.flags();
|
|
let was_seen: bool = old_flags.contains(Flag::SEEN);
|
|
let is_seen: bool = new_flags.contains(Flag::SEEN);
|
|
|
|
if index_lock.contains_key(&old_hash) && !index_lock[&old_hash].removed
|
|
{
|
|
debug!("contains_old_key");
|
|
index_lock.entry(old_hash).and_modify(|e| {
|
|
debug!(&e.modified);
|
|
e.modified = Some(PathMod::Hash(new_hash));
|
|
});
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash: get_path_hash!(dest),
|
|
kind: Rename(old_hash, new_hash),
|
|
}),
|
|
);
|
|
if !was_seen && is_seen {
|
|
let mut lck = mailbox_counts[&mailbox_hash].0.lock().unwrap();
|
|
*lck = lck.saturating_sub(1);
|
|
} else if was_seen && !is_seen {
|
|
*mailbox_counts[&mailbox_hash].0.lock().unwrap() += 1;
|
|
}
|
|
if old_flags != new_flags {
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash: get_path_hash!(dest),
|
|
kind: NewFlags(new_hash, (new_flags, vec![])),
|
|
}),
|
|
);
|
|
}
|
|
mailbox_index
|
|
.lock()
|
|
.unwrap()
|
|
.insert(new_hash, get_path_hash!(dest));
|
|
index_lock.insert(new_hash, dest.into());
|
|
continue;
|
|
} else if !index_lock.contains_key(&new_hash)
|
|
&& index_lock
|
|
.get(&old_hash)
|
|
.map(|e| e.removed)
|
|
.unwrap_or(false)
|
|
{
|
|
if index_lock
|
|
.get(&old_hash)
|
|
.map(|e| e.removed)
|
|
.unwrap_or(false)
|
|
{
|
|
index_lock.entry(old_hash).and_modify(|e| {
|
|
e.modified = Some(PathMod::Hash(new_hash));
|
|
e.removed = false;
|
|
});
|
|
debug!("contains_old_key, key was marked as removed (by external source)");
|
|
} else {
|
|
debug!("not contains_new_key");
|
|
}
|
|
let file_name = dest
|
|
.as_path()
|
|
.strip_prefix(&root_path)
|
|
.unwrap()
|
|
.to_path_buf();
|
|
debug!("filename = {:?}", file_name);
|
|
drop(hash_indexes_lock);
|
|
if let Ok(env) = add_path_to_index(
|
|
&hash_indexes,
|
|
mailbox_hash,
|
|
dest.as_path(),
|
|
&cache_dir,
|
|
file_name,
|
|
) {
|
|
mailbox_index
|
|
.lock()
|
|
.unwrap()
|
|
.insert(env.hash(), mailbox_hash);
|
|
debug!(
|
|
"Create event {} {} {}",
|
|
env.hash(),
|
|
env.subject(),
|
|
dest.display()
|
|
);
|
|
if !env.is_seen() {
|
|
*mailbox_counts[&mailbox_hash].0.lock().unwrap() += 1;
|
|
}
|
|
*mailbox_counts[&mailbox_hash].1.lock().unwrap() += 1;
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash,
|
|
kind: Create(Box::new(env)),
|
|
}),
|
|
);
|
|
continue;
|
|
} else {
|
|
debug!("not valid email");
|
|
}
|
|
} else {
|
|
if was_seen && !is_seen {
|
|
*mailbox_counts[&mailbox_hash].0.lock().unwrap() += 1;
|
|
}
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash: get_path_hash!(dest),
|
|
kind: Rename(old_hash, new_hash),
|
|
}),
|
|
);
|
|
debug!("contains_new_key");
|
|
if old_flags != new_flags {
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash: get_path_hash!(dest),
|
|
kind: NewFlags(new_hash, (new_flags, vec![])),
|
|
}),
|
|
);
|
|
}
|
|
}
|
|
|
|
/* Maybe a re-read should be triggered here just to be safe.
|
|
(sender)(account_hash, BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash: get_path_hash!(dest),
|
|
kind: Rescan,
|
|
}));
|
|
*/
|
|
}
|
|
/* Trigger rescan of mailbox */
|
|
DebouncedEvent::Rescan => {
|
|
(sender)(
|
|
account_hash,
|
|
BackendEvent::Refresh(RefreshEvent {
|
|
account_hash,
|
|
mailbox_hash: root_mailbox_hash,
|
|
kind: Rescan,
|
|
}),
|
|
);
|
|
}
|
|
_ => {}
|
|
},
|
|
Err(e) => debug!("watch error: {:?}", e),
|
|
}
|
|
}
|
|
}))
|
|
}
|
|
|
|
fn operation(&self, hash: EnvelopeHash) -> Result<Box<dyn BackendOp>> {
|
|
Ok(Box::new(MaildirOp::new(
|
|
hash,
|
|
self.hash_indexes.clone(),
|
|
self.mailbox_index.lock().unwrap()[&hash],
|
|
)))
|
|
}
|
|
|
|
fn save(
|
|
&self,
|
|
bytes: Vec<u8>,
|
|
mailbox_hash: MailboxHash,
|
|
flags: Option<Flag>,
|
|
) -> ResultFuture<()> {
|
|
let path = self.mailboxes[&mailbox_hash].fs_path.clone();
|
|
Ok(Box::pin(async move {
|
|
MaildirType::save_to_mailbox(path, bytes, flags)
|
|
}))
|
|
}
|
|
|
|
fn set_flags(
|
|
&mut self,
|
|
env_hashes: EnvelopeHashBatch,
|
|
mailbox_hash: MailboxHash,
|
|
flags: SmallVec<[(std::result::Result<Flag, String>, bool); 8]>,
|
|
) -> ResultFuture<()> {
|
|
let hash_index = self.hash_indexes.clone();
|
|
if flags.iter().any(|(f, _)| f.is_err()) {
|
|
return Err(MeliError::new("Maildir doesn't support tags."));
|
|
}
|
|
|
|
Ok(Box::pin(async move {
|
|
let mut hash_indexes_lck = hash_index.lock().unwrap();
|
|
let hash_index = hash_indexes_lck.entry(mailbox_hash).or_default();
|
|
|
|
for env_hash in env_hashes.iter() {
|
|
let _path = {
|
|
if !hash_index.contains_key(&env_hash) {
|
|
continue;
|
|
}
|
|
if let Some(modif) = &hash_index[&env_hash].modified {
|
|
match modif {
|
|
PathMod::Path(ref path) => path.clone(),
|
|
PathMod::Hash(hash) => hash_index[&hash].to_path_buf(),
|
|
}
|
|
} else {
|
|
hash_index[&env_hash].to_path_buf()
|
|
}
|
|
};
|
|
let mut env_flags = _path.flags();
|
|
let path = _path.to_str().unwrap(); // Assume UTF-8 validity
|
|
let idx: usize = path
|
|
.rfind(":2,")
|
|
.ok_or_else(|| MeliError::new(format!("Invalid email filename: {:?}", path)))?
|
|
+ 3;
|
|
let mut new_name: String = path[..idx].to_string();
|
|
for (f, value) in flags.iter() {
|
|
env_flags.set(*f.as_ref().unwrap(), *value);
|
|
}
|
|
|
|
if !(env_flags & Flag::DRAFT).is_empty() {
|
|
new_name.push('D');
|
|
}
|
|
if !(env_flags & Flag::FLAGGED).is_empty() {
|
|
new_name.push('F');
|
|
}
|
|
if !(env_flags & Flag::PASSED).is_empty() {
|
|
new_name.push('P');
|
|
}
|
|
if !(env_flags & Flag::REPLIED).is_empty() {
|
|
new_name.push('R');
|
|
}
|
|
if !(env_flags & Flag::SEEN).is_empty() {
|
|
new_name.push('S');
|
|
}
|
|
if !(env_flags & Flag::TRASHED).is_empty() {
|
|
new_name.push('T');
|
|
}
|
|
let new_name: PathBuf = new_name.into();
|
|
hash_index.entry(env_hash).or_default().modified =
|
|
Some(PathMod::Path(new_name.clone()));
|
|
|
|
debug!("renaming {:?} to {:?}", path, new_name);
|
|
fs::rename(&path, &new_name)?;
|
|
debug!("success in rename");
|
|
}
|
|
Ok(())
|
|
}))
|
|
}
|
|
|
|
fn create_mailbox(
|
|
&mut self,
|
|
new_path: String,
|
|
) -> ResultFuture<(MailboxHash, HashMap<MailboxHash, Mailbox>)> {
|
|
let mut path = self.path.clone();
|
|
path.push(&new_path);
|
|
if !path.starts_with(&self.path) {
|
|
return Err(MeliError::new(format!("Path given (`{}`) is absolute. Please provide a path relative to the account's root mailbox.", &new_path)));
|
|
}
|
|
|
|
std::fs::create_dir(&path)?;
|
|
/* create_dir does not create intermediate directories (like `mkdir -p`), so the parent must be a valid
|
|
* mailbox at this point. */
|
|
|
|
let parent = path.parent().and_then(|p| {
|
|
self.mailboxes
|
|
.iter()
|
|
.find(|(_, f)| f.fs_path == p)
|
|
.map(|item| *item.0)
|
|
});
|
|
|
|
let mailbox_hash = get_path_hash!(&path);
|
|
if let Some(parent) = parent {
|
|
self.mailboxes
|
|
.entry(parent)
|
|
.and_modify(|entry| entry.children.push(mailbox_hash));
|
|
}
|
|
let new_mailbox = MaildirMailbox {
|
|
hash: mailbox_hash,
|
|
path: PathBuf::from(&new_path),
|
|
name: new_path,
|
|
fs_path: path,
|
|
parent,
|
|
children: vec![],
|
|
usage: Default::default(),
|
|
is_subscribed: true,
|
|
permissions: Default::default(),
|
|
unseen: Default::default(),
|
|
total: Default::default(),
|
|
};
|
|
|
|
self.mailboxes.insert(mailbox_hash, new_mailbox);
|
|
let ret = self.mailboxes()?;
|
|
Ok(Box::pin(async move { Ok((mailbox_hash, ret.await?)) }))
|
|
}
|
|
|
|
fn delete_mailbox(
|
|
&mut self,
|
|
_mailbox_hash: MailboxHash,
|
|
) -> ResultFuture<HashMap<MailboxHash, Mailbox>> {
|
|
Err(MeliError::new("Unimplemented."))
|
|
}
|
|
|
|
fn set_mailbox_subscription(
|
|
&mut self,
|
|
_mailbox_hash: MailboxHash,
|
|
_val: bool,
|
|
) -> ResultFuture<()> {
|
|
Err(MeliError::new("Unimplemented."))
|
|
}
|
|
|
|
fn rename_mailbox(
|
|
&mut self,
|
|
_mailbox_hash: MailboxHash,
|
|
_new_path: String,
|
|
) -> ResultFuture<Mailbox> {
|
|
Err(MeliError::new("Unimplemented."))
|
|
}
|
|
|
|
fn set_mailbox_permissions(
|
|
&mut self,
|
|
_mailbox_hash: MailboxHash,
|
|
_val: crate::backends::MailboxPermissions,
|
|
) -> ResultFuture<()> {
|
|
Err(MeliError::new("Unimplemented."))
|
|
}
|
|
|
|
fn as_any(&self) -> &dyn Any {
|
|
self
|
|
}
|
|
|
|
fn as_any_mut(&mut self) -> &mut dyn Any {
|
|
self
|
|
}
|
|
}
|
|
|
|
impl MaildirType {
|
|
pub fn new(
|
|
settings: &AccountSettings,
|
|
is_subscribed: Box<dyn Fn(&str) -> bool>,
|
|
event_consumer: BackendEventConsumer,
|
|
) -> Result<Box<dyn MailBackend>> {
|
|
let mut mailboxes: HashMap<MailboxHash, MaildirMailbox> = Default::default();
|
|
fn recurse_mailboxes<P: AsRef<Path>>(
|
|
mailboxes: &mut HashMap<MailboxHash, MaildirMailbox>,
|
|
settings: &AccountSettings,
|
|
p: P,
|
|
) -> Result<Vec<MailboxHash>> {
|
|
if !p.as_ref().exists() || !p.as_ref().is_dir() {
|
|
return Err(MeliError::new(format!(
|
|
"Configuration error: Path \"{}\" {}",
|
|
p.as_ref().display(),
|
|
if !p.as_ref().exists() {
|
|
"does not exist."
|
|
} else {
|
|
"is not a directory."
|
|
}
|
|
)));
|
|
}
|
|
let mut children = Vec::new();
|
|
for mut f in fs::read_dir(&p).unwrap() {
|
|
'entries: for f in f.iter_mut() {
|
|
{
|
|
let path = f.path();
|
|
if path.ends_with("cur") || path.ends_with("new") || path.ends_with("tmp") {
|
|
continue 'entries;
|
|
}
|
|
if path.is_dir() {
|
|
if let Ok(mut f) = MaildirMailbox::new(
|
|
path.to_str().unwrap().to_string(),
|
|
path.file_name().unwrap().to_str().unwrap().to_string(),
|
|
None,
|
|
Vec::new(),
|
|
false,
|
|
&settings,
|
|
) {
|
|
f.children = recurse_mailboxes(mailboxes, settings, &path)?;
|
|
for c in &f.children {
|
|
if let Some(f) = mailboxes.get_mut(c) {
|
|
f.parent = Some(f.hash);
|
|
}
|
|
}
|
|
children.push(f.hash);
|
|
mailboxes.insert(f.hash, f);
|
|
} else {
|
|
/* If directory is invalid (i.e. has no {cur,new,tmp} subfolders),
|
|
* accept it ONLY if it contains subdirs of any depth that are
|
|
* valid maildir paths
|
|
*/
|
|
let subdirs = recurse_mailboxes(mailboxes, settings, &path)?;
|
|
if !subdirs.is_empty() {
|
|
if let Ok(f) = MaildirMailbox::new(
|
|
path.to_str().unwrap().to_string(),
|
|
path.file_name().unwrap().to_str().unwrap().to_string(),
|
|
None,
|
|
subdirs,
|
|
true,
|
|
&settings,
|
|
) {
|
|
for c in &f.children {
|
|
if let Some(f) = mailboxes.get_mut(c) {
|
|
f.parent = Some(f.hash);
|
|
}
|
|
}
|
|
children.push(f.hash);
|
|
mailboxes.insert(f.hash, f);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Ok(children)
|
|
};
|
|
let root_path = PathBuf::from(settings.root_mailbox()).expand();
|
|
if !root_path.exists() {
|
|
return Err(MeliError::new(format!(
|
|
"Configuration error ({}): root_path `{}` is not a valid directory.",
|
|
settings.name(),
|
|
settings.root_mailbox.as_str()
|
|
)));
|
|
} else if !root_path.is_dir() {
|
|
return Err(MeliError::new(format!(
|
|
"Configuration error ({}): root_path `{}` is not a directory.",
|
|
settings.name(),
|
|
settings.root_mailbox.as_str()
|
|
)));
|
|
}
|
|
|
|
if let Ok(f) = MaildirMailbox::new(
|
|
root_path.to_str().unwrap().to_string(),
|
|
root_path.file_name().unwrap().to_str().unwrap().to_string(),
|
|
None,
|
|
Vec::with_capacity(0),
|
|
false,
|
|
settings,
|
|
) {
|
|
mailboxes.insert(f.hash, f);
|
|
}
|
|
|
|
if mailboxes.is_empty() {
|
|
let children = recurse_mailboxes(&mut mailboxes, settings, &root_path)?;
|
|
for c in &children {
|
|
if let Some(f) = mailboxes.get_mut(c) {
|
|
f.parent = None;
|
|
}
|
|
}
|
|
} else {
|
|
let root_hash = *mailboxes.keys().next().unwrap();
|
|
let children = recurse_mailboxes(&mut mailboxes, settings, &root_path)?;
|
|
for c in &children {
|
|
if let Some(f) = mailboxes.get_mut(c) {
|
|
f.parent = Some(root_hash);
|
|
}
|
|
}
|
|
if let Some(f) = mailboxes.get_mut(&root_hash) {
|
|
f.children = children;
|
|
}
|
|
}
|
|
for f in mailboxes.values_mut() {
|
|
if is_subscribed(f.path()) {
|
|
f.is_subscribed = true;
|
|
}
|
|
}
|
|
|
|
let mut hash_indexes =
|
|
HashMap::with_capacity_and_hasher(mailboxes.len(), Default::default());
|
|
for &fh in mailboxes.keys() {
|
|
hash_indexes.insert(
|
|
fh,
|
|
HashIndex {
|
|
index: HashMap::with_capacity_and_hasher(0, Default::default()),
|
|
hash: fh,
|
|
},
|
|
);
|
|
}
|
|
Ok(Box::new(MaildirType {
|
|
name: settings.name().to_string(),
|
|
mailboxes,
|
|
hash_indexes: Arc::new(Mutex::new(hash_indexes)),
|
|
mailbox_index: Default::default(),
|
|
event_consumer,
|
|
path: root_path,
|
|
}))
|
|
}
|
|
|
|
pub fn save_to_mailbox(mut path: PathBuf, bytes: Vec<u8>, flags: Option<Flag>) -> Result<()> {
|
|
for d in &["cur", "new", "tmp"] {
|
|
path.push(d);
|
|
if !path.is_dir() {
|
|
return Err(MeliError::new(format!(
|
|
"{} is not a valid maildir mailbox",
|
|
path.display()
|
|
)));
|
|
}
|
|
path.pop();
|
|
}
|
|
path.push("cur");
|
|
{
|
|
let mut rand_buf = [0u8; 16];
|
|
let mut f =
|
|
fs::File::open("/dev/urandom").expect("Could not open /dev/urandom for reading");
|
|
f.read_exact(&mut rand_buf)
|
|
.expect("Could not read from /dev/urandom/");
|
|
let mut hostn_buf = String::with_capacity(256);
|
|
let mut f =
|
|
fs::File::open("/etc/hostname").expect("Could not open /etc/hostname for reading");
|
|
f.read_to_string(&mut hostn_buf)
|
|
.expect("Could not read from /etc/hostname");
|
|
let timestamp = std::time::SystemTime::now()
|
|
.duration_since(std::time::SystemTime::UNIX_EPOCH)
|
|
.unwrap()
|
|
.as_millis();
|
|
let mut filename = format!(
|
|
"{}.{:x}_{}.{}:2,",
|
|
timestamp,
|
|
u128::from_be_bytes(rand_buf),
|
|
std::process::id(),
|
|
hostn_buf.trim()
|
|
);
|
|
if let Some(flags) = flags {
|
|
if !(flags & Flag::DRAFT).is_empty() {
|
|
filename.push('D');
|
|
}
|
|
if !(flags & Flag::FLAGGED).is_empty() {
|
|
filename.push('F');
|
|
}
|
|
if !(flags & Flag::PASSED).is_empty() {
|
|
filename.push('P');
|
|
}
|
|
if !(flags & Flag::REPLIED).is_empty() {
|
|
filename.push('R');
|
|
}
|
|
if !(flags & Flag::SEEN).is_empty() {
|
|
filename.push('S');
|
|
}
|
|
if !(flags & Flag::TRASHED).is_empty() {
|
|
filename.push('T');
|
|
}
|
|
}
|
|
path.push(filename);
|
|
}
|
|
debug!("saving at {}", path.display());
|
|
let file = fs::File::create(path).unwrap();
|
|
let metadata = file.metadata()?;
|
|
let mut permissions = metadata.permissions();
|
|
|
|
permissions.set_mode(0o600); // Read/write for owner only.
|
|
file.set_permissions(permissions)?;
|
|
|
|
let mut writer = io::BufWriter::new(file);
|
|
writer.write_all(&bytes).unwrap();
|
|
Ok(())
|
|
}
|
|
|
|
pub fn validate_config(s: &AccountSettings) -> Result<()> {
|
|
let root_path = PathBuf::from(s.root_mailbox()).expand();
|
|
if !root_path.exists() {
|
|
return Err(MeliError::new(format!(
|
|
"Configuration error ({}): root_path `{}` is not a valid directory.",
|
|
s.name(),
|
|
s.root_mailbox.as_str()
|
|
)));
|
|
} else if !root_path.is_dir() {
|
|
return Err(MeliError::new(format!(
|
|
"Configuration error ({}): root_path `{}` is not a directory.",
|
|
s.name(),
|
|
s.root_mailbox.as_str()
|
|
)));
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
fn add_path_to_index(
|
|
hash_index: &HashIndexes,
|
|
mailbox_hash: MailboxHash,
|
|
path: &Path,
|
|
cache_dir: &xdg::BaseDirectories,
|
|
file_name: PathBuf,
|
|
) -> Result<Envelope> {
|
|
debug!("add_path_to_index path {:?} filename{:?}", path, file_name);
|
|
let env_hash = get_file_hash(path);
|
|
{
|
|
let mut map = hash_index.lock().unwrap();
|
|
let map = map.entry(mailbox_hash).or_default();
|
|
map.insert(env_hash, path.to_path_buf().into());
|
|
debug!(
|
|
"inserted {} in {} map, len={}",
|
|
env_hash,
|
|
mailbox_hash,
|
|
map.len()
|
|
);
|
|
}
|
|
//Mmap::open_path(self.path(), Protection::Read)?
|
|
let mut env = Envelope::from_bytes(
|
|
unsafe { &Mmap::open_path(path, Protection::Read)?.as_slice() },
|
|
None,
|
|
)?;
|
|
env.set_hash(env_hash);
|
|
debug!(
|
|
"add_path_to_index gen {}\t{}",
|
|
env_hash,
|
|
file_name.display()
|
|
);
|
|
if let Ok(cached) = cache_dir.place_cache_file(file_name) {
|
|
debug!("putting in cache");
|
|
/* place result in cache directory */
|
|
let f = fs::File::create(cached)?;
|
|
let metadata = f.metadata()?;
|
|
let mut permissions = metadata.permissions();
|
|
|
|
permissions.set_mode(0o600); // Read/write for owner only.
|
|
f.set_permissions(permissions)?;
|
|
let writer = io::BufWriter::new(f);
|
|
bincode::serialize_into(writer, &env)?;
|
|
}
|
|
Ok(env)
|
|
}
|