289 lines
9.4 KiB
Rust
289 lines
9.4 KiB
Rust
/*
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* melib - notmuch backend
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*
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* Copyright 2020 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::*;
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use crate::thread::{ThreadHash, ThreadNode, ThreadNodeHash};
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#[derive(Clone)]
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pub struct Message<'m> {
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pub lib: Arc<libloading::Library>,
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pub message: *mut notmuch_message_t,
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pub is_from_thread: bool,
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pub _ph: std::marker::PhantomData<&'m notmuch_message_t>,
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}
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impl<'m> Message<'m> {
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pub fn find_message(db: &'m DbConnection, msg_id: &CStr) -> Result<Message<'m>> {
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let mut message: *mut notmuch_message_t = std::ptr::null_mut();
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let lib = db.lib.clone();
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unsafe {
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call!(lib, notmuch_database_find_message)(
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*db.inner.read().unwrap(),
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msg_id.as_ptr(),
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&mut message as *mut _,
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)
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};
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if message.is_null() {
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return Err(MeliError::new(format!(
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"Message with message id {:?} not found in notmuch database.",
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msg_id
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)));
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}
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Ok(Message {
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lib,
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message,
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is_from_thread: false,
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_ph: std::marker::PhantomData,
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})
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}
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pub fn env_hash(&self) -> EnvelopeHash {
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let msg_id = unsafe { call!(self.lib, notmuch_message_get_message_id)(self.message) };
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let c_str = unsafe { CStr::from_ptr(msg_id) };
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{
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let mut hasher = DefaultHasher::default();
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c_str.hash(&mut hasher);
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hasher.finish()
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}
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}
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pub fn header(&self, header: &CStr) -> Option<&[u8]> {
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let header_val =
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unsafe { call!(self.lib, notmuch_message_get_header)(self.message, header.as_ptr()) };
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if header_val.is_null() {
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None
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} else {
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Some(unsafe { CStr::from_ptr(header_val).to_bytes() })
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}
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}
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pub fn msg_id(&self) -> &[u8] {
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let c_str = self.msg_id_cstr();
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c_str.to_bytes()
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}
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pub fn msg_id_cstr(&self) -> &CStr {
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let msg_id = unsafe { call!(self.lib, notmuch_message_get_message_id)(self.message) };
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unsafe { CStr::from_ptr(msg_id) }
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}
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pub fn date(&self) -> crate::datetime::UnixTimestamp {
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(unsafe { call!(self.lib, notmuch_message_get_date)(self.message) }) as u64
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}
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pub fn into_envelope(
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self,
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index: &RwLock<HashMap<EnvelopeHash, CString>>,
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tag_index: &RwLock<BTreeMap<u64, String>>,
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) -> Envelope {
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let env_hash = self.env_hash();
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let mut env = Envelope::new(env_hash);
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index
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.write()
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.unwrap()
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.insert(env_hash, self.msg_id_cstr().into());
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let mut tag_lock = tag_index.write().unwrap();
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let (flags, tags) = TagIterator::new(&self).collect_flags_and_tags();
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for tag in tags {
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let mut hasher = DefaultHasher::new();
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hasher.write(tag.as_bytes());
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let num = hasher.finish();
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if !tag_lock.contains_key(&num) {
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tag_lock.insert(num, tag);
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}
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env.labels_mut().push(num);
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}
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unsafe {
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use crate::email::parser::address::rfc2822address_list;
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env.set_message_id(self.msg_id())
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.set_date(
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self.header(CStr::from_bytes_with_nul_unchecked(b"Date\0"))
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.unwrap_or_default(),
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)
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.set_from(
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rfc2822address_list(
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self.header(CStr::from_bytes_with_nul_unchecked(b"From\0"))
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.unwrap_or_default(),
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)
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.map(|(_, v)| v)
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.unwrap_or_default(),
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)
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.set_to(
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rfc2822address_list(
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self.header(CStr::from_bytes_with_nul_unchecked(b"To\0"))
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.unwrap_or_default(),
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)
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.map(|(_, v)| v)
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.unwrap_or_default(),
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)
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.set_cc(
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rfc2822address_list(
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self.header(CStr::from_bytes_with_nul_unchecked(b"Cc\0"))
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.unwrap_or_default(),
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)
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.map(|(_, v)| v)
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.unwrap_or_default(),
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)
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.set_bcc(
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rfc2822address_list(
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self.header(CStr::from_bytes_with_nul_unchecked(b"Bcc\0"))
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.unwrap_or_default(),
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)
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.map(|(_, v)| v)
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.unwrap_or_default()
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.to_vec(),
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)
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.set_subject(
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self.header(CStr::from_bytes_with_nul_unchecked(b"Subject\0"))
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.unwrap_or_default()
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.to_vec(),
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)
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.set_references(
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self.header(CStr::from_bytes_with_nul_unchecked(b"References\0"))
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.unwrap_or_default(),
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)
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.set_in_reply_to(
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self.header(CStr::from_bytes_with_nul_unchecked(b"In-Reply-To\0"))
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.unwrap_or_default(),
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)
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.set_datetime(self.date())
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.set_flags(flags);
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}
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env
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}
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pub fn replies_iter(&self) -> Option<MessageIterator> {
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if self.is_from_thread {
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let messages = unsafe { call!(self.lib, notmuch_message_get_replies)(self.message) };
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if messages.is_null() {
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None
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} else {
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Some(MessageIterator {
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lib: self.lib.clone(),
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messages,
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_ph: std::marker::PhantomData,
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is_from_thread: true,
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})
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}
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} else {
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None
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}
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}
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pub fn into_thread_node(&self) -> (ThreadNodeHash, ThreadNode) {
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(
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ThreadNodeHash::from(self.msg_id()),
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ThreadNode {
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message: Some(self.env_hash()),
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parent: None,
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other_mailbox: false,
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children: vec![],
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date: self.date(),
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show_subject: true,
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group: ThreadHash::new(),
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unseen: false,
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},
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)
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}
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pub fn add_tag(&self, tag: &CStr) -> Result<()> {
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if let Err(err) = unsafe {
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try_call!(
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self.lib,
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call!(self.lib, notmuch_message_add_tag)(self.message, tag.as_ptr())
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)
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} {
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return Err(MeliError::new("Could not set tag.").set_source(Some(Arc::new(err))));
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}
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Ok(())
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}
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pub fn remove_tag(&self, tag: &CStr) -> Result<()> {
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if let Err(err) = unsafe {
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try_call!(
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self.lib,
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call!(self.lib, notmuch_message_remove_tag)(self.message, tag.as_ptr())
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)
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} {
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return Err(MeliError::new("Could not set tag.").set_source(Some(Arc::new(err))));
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}
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Ok(())
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}
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pub fn tags(&'m self) -> TagIterator<'m> {
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TagIterator::new(self)
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}
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pub fn tags_to_maildir_flags(&self) -> Result<()> {
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if let Err(err) = unsafe {
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try_call!(
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self.lib,
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call!(self.lib, notmuch_message_tags_to_maildir_flags)(self.message)
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)
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} {
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return Err(MeliError::new("Could not set flags.").set_source(Some(Arc::new(err))));
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}
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Ok(())
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}
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pub fn get_filename(&self) -> &OsStr {
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let fs_path = unsafe { call!(self.lib, notmuch_message_get_filename)(self.message) };
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let c_str = unsafe { CStr::from_ptr(fs_path) };
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&OsStr::from_bytes(c_str.to_bytes())
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}
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}
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impl Drop for Message<'_> {
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fn drop(&mut self) {
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unsafe { call!(self.lib, notmuch_message_destroy)(self.message) };
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}
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}
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pub struct MessageIterator<'query> {
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pub lib: Arc<libloading::Library>,
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pub messages: *mut notmuch_messages_t,
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pub is_from_thread: bool,
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pub _ph: std::marker::PhantomData<*const Query<'query>>,
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}
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impl<'q> Iterator for MessageIterator<'q> {
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type Item = Message<'q>;
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fn next(&mut self) -> Option<Self::Item> {
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if self.messages.is_null() {
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None
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} else if unsafe { call!(self.lib, notmuch_messages_valid)(self.messages) } == 1 {
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let message = unsafe { call!(self.lib, notmuch_messages_get)(self.messages) };
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unsafe {
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call!(self.lib, notmuch_messages_move_to_next)(self.messages);
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}
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Some(Message {
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lib: self.lib.clone(),
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message,
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is_from_thread: self.is_from_thread,
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_ph: std::marker::PhantomData,
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})
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} else {
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self.messages = std::ptr::null_mut();
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None
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}
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}
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}
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