use crate::address::HeaderAddressList;
#[cfg(feature = "impl")]
use crate::dkim::Signer;
#[cfg(feature = "impl")]
use crate::dkim::SIGN_POOL;
pub use crate::queue_name::QueueNameComponents;
use crate::scheduling::Scheduling;
use crate::EnvelopeAddress;
use anyhow::Context;
use chrono::{DateTime, Utc};
#[cfg(feature = "impl")]
use config::{any_err, from_lua_value, serialize_options};
use futures::FutureExt;
use intrusive_collections::{intrusive_adapter, LinkedList, LinkedListAtomicLink};
use kumo_chrono_helper::*;
use kumo_log_types::rfc3464::Report;
use kumo_log_types::rfc5965::ARFReport;
#[cfg(feature = "impl")]
use mailparsing::{AuthenticationResult, AuthenticationResults, EncodeHeaderValue};
use mailparsing::{DecodedBody, Header, HeaderParseResult, MessageConformance, MimePart};
#[cfg(feature = "impl")]
use mlua::{LuaSerdeExt, UserData, UserDataMethods};
use parking_lot::Mutex;
use prometheus::{Histogram, IntGauge};
use serde::{Deserialize, Serialize};
use spool::{get_data_spool, get_meta_spool, Spool, SpoolId};
use std::hash::Hash;
use std::sync::{Arc, LazyLock, Weak};
use std::time::{Duration, Instant};
use timeq::TimerEntryWithDelay;
bitflags::bitflags! {
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
struct MessageFlags: u8 {
const META_DIRTY = 1;
const DATA_DIRTY = 2;
const SCHEDULED = 4;
const FORCE_SYNC = 8;
}
}
static MESSAGE_COUNT: LazyLock<IntGauge> = LazyLock::new(|| {
prometheus::register_int_gauge!("message_count", "total number of Message objects").unwrap()
});
static META_COUNT: LazyLock<IntGauge> = LazyLock::new(|| {
prometheus::register_int_gauge!(
"message_meta_resident_count",
"total number of Message objects with metadata loaded"
)
.unwrap()
});
static DATA_COUNT: LazyLock<IntGauge> = LazyLock::new(|| {
prometheus::register_int_gauge!(
"message_data_resident_count",
"total number of Message objects with body data loaded"
)
.unwrap()
});
static NO_DATA: LazyLock<Arc<Box<[u8]>>> = LazyLock::new(|| Arc::new(vec![].into_boxed_slice()));
static SAVE_HIST: LazyLock<Histogram> = LazyLock::new(|| {
prometheus::register_histogram!(
"message_save_latency",
"how long it takes to save a message to spool"
)
.unwrap()
});
static LOAD_DATA_HIST: LazyLock<Histogram> = LazyLock::new(|| {
prometheus::register_histogram!(
"message_data_load_latency",
"how long it takes to load message data from spool"
)
.unwrap()
});
static LOAD_META_HIST: LazyLock<Histogram> = LazyLock::new(|| {
prometheus::register_histogram!(
"message_meta_load_latency",
"how long it takes to load message metadata from spool"
)
.unwrap()
});
#[derive(Debug)]
struct MessageInner {
metadata: Option<Box<MetaData>>,
data: Arc<Box<[u8]>>,
flags: MessageFlags,
num_attempts: u16,
due: Option<DateTime<Utc>>,
}
#[derive(Debug)]
pub(crate) struct MessageWithId {
id: SpoolId,
inner: Mutex<MessageInner>,
link: LinkedListAtomicLink,
}
intrusive_adapter!(
pub(crate) MessageWithIdAdapter = Arc<MessageWithId>: MessageWithId { link: LinkedListAtomicLink }
);
pub struct MessageList {
list: LinkedList<MessageWithIdAdapter>,
len: usize,
}
impl Default for MessageList {
fn default() -> Self {
Self::new()
}
}
impl MessageList {
pub fn new() -> Self {
Self {
list: LinkedList::new(MessageWithIdAdapter::default()),
len: 0,
}
}
pub fn len(&self) -> usize {
self.len
}
pub fn is_empty(&self) -> bool {
self.len == 0
}
pub fn take(&mut self) -> Self {
let new_list = Self {
list: self.list.take(),
len: self.len,
};
self.len = 0;
new_list
}
pub fn push_back(&mut self, message: Message) {
self.list.push_back(message.msg_and_id);
self.len += 1;
}
pub fn pop_front(&mut self) -> Option<Message> {
self.list.pop_front().map(|msg_and_id| {
self.len -= 1;
Message { msg_and_id }
})
}
pub fn pop_back(&mut self) -> Option<Message> {
self.list.pop_back().map(|msg_and_id| {
self.len -= 1;
Message { msg_and_id }
})
}
pub fn drain(&mut self) -> Vec<Message> {
let mut messages = Vec::with_capacity(self.len);
while let Some(msg) = self.pop_front() {
messages.push(msg);
}
messages
}
pub fn extend_from_iter<I>(&mut self, mut iter: I)
where
I: Iterator<Item = Message>,
{
while let Some(msg) = iter.next() {
self.push_back(msg)
}
}
}
impl IntoIterator for MessageList {
type Item = Message;
type IntoIter = MessageListIter;
fn into_iter(self) -> MessageListIter {
MessageListIter { list: self.list }
}
}
pub struct MessageListIter {
list: LinkedList<MessageWithIdAdapter>,
}
impl Iterator for MessageListIter {
type Item = Message;
fn next(&mut self) -> Option<Message> {
self.list
.pop_front()
.map(|msg_and_id| Message { msg_and_id })
}
}
#[derive(Clone, Debug)]
#[cfg_attr(feature = "impl", derive(mlua::FromLua))]
pub struct Message {
pub(crate) msg_and_id: Arc<MessageWithId>,
}
impl PartialEq for Message {
fn eq(&self, other: &Self) -> bool {
self.id() == other.id()
}
}
impl Eq for Message {}
impl Hash for Message {
fn hash<H>(&self, hasher: &mut H)
where
H: std::hash::Hasher,
{
self.id().hash(hasher)
}
}
#[derive(Clone, Debug)]
pub struct WeakMessage {
weak: Weak<MessageWithId>,
}
impl WeakMessage {
pub fn upgrade(&self) -> Option<Message> {
Some(Message {
msg_and_id: self.weak.upgrade()?,
})
}
}
#[derive(Debug, Serialize, Deserialize, Clone)]
struct MetaData {
sender: EnvelopeAddress,
recipient: EnvelopeAddress,
meta: serde_json::Value,
#[serde(default)]
schedule: Option<Scheduling>,
}
impl Drop for MessageInner {
fn drop(&mut self) {
if self.metadata.is_some() {
META_COUNT.dec();
}
if !self.data.is_empty() {
DATA_COUNT.dec();
}
MESSAGE_COUNT.dec();
}
}
impl Message {
pub fn new_dirty(
id: SpoolId,
sender: EnvelopeAddress,
recipient: EnvelopeAddress,
meta: serde_json::Value,
data: Arc<Box<[u8]>>,
) -> anyhow::Result<Self> {
anyhow::ensure!(meta.is_object(), "metadata must be a json object");
MESSAGE_COUNT.inc();
DATA_COUNT.inc();
META_COUNT.inc();
Ok(Self {
msg_and_id: Arc::new(MessageWithId {
id,
inner: Mutex::new(MessageInner {
metadata: Some(Box::new(MetaData {
sender,
recipient,
meta,
schedule: None,
})),
data,
flags: MessageFlags::META_DIRTY | MessageFlags::DATA_DIRTY,
num_attempts: 0,
due: None,
}),
link: LinkedListAtomicLink::default(),
}),
})
}
pub fn weak(&self) -> WeakMessage {
WeakMessage {
weak: Arc::downgrade(&self.msg_and_id),
}
}
pub fn new_from_spool(id: SpoolId, metadata: Vec<u8>) -> anyhow::Result<Self> {
let metadata: MetaData = serde_json::from_slice(&metadata)?;
MESSAGE_COUNT.inc();
META_COUNT.inc();
let flags = if metadata.schedule.is_some() {
MessageFlags::SCHEDULED
} else {
MessageFlags::empty()
};
Ok(Self {
msg_and_id: Arc::new(MessageWithId {
id,
inner: Mutex::new(MessageInner {
metadata: Some(Box::new(metadata)),
data: NO_DATA.clone(),
flags,
num_attempts: 0,
due: None,
}),
link: LinkedListAtomicLink::default(),
}),
})
}
pub async fn new_with_id(id: SpoolId) -> anyhow::Result<Self> {
let meta_spool = get_meta_spool();
let data = meta_spool.load(id).await?;
Self::new_from_spool(id, data)
}
pub fn get_num_attempts(&self) -> u16 {
let inner = self.msg_and_id.inner.lock();
inner.num_attempts
}
pub fn set_num_attempts(&self, num_attempts: u16) {
let mut inner = self.msg_and_id.inner.lock();
inner.num_attempts = num_attempts;
}
pub fn increment_num_attempts(&self) {
let mut inner = self.msg_and_id.inner.lock();
inner.num_attempts += 1;
}
pub fn set_scheduling(
&self,
scheduling: Option<Scheduling>,
) -> anyhow::Result<Option<Scheduling>> {
let mut inner = self.msg_and_id.inner.lock();
match &mut inner.metadata {
None => anyhow::bail!("metadata must be loaded first"),
Some(meta) => {
meta.schedule = scheduling;
inner
.flags
.set(MessageFlags::SCHEDULED, scheduling.is_some());
if let Some(sched) = scheduling {
let due = inner.due.unwrap_or_else(|| Utc::now());
inner.due = Some(sched.adjust_for_schedule(due));
}
Ok(scheduling)
}
}
}
pub fn get_scheduling(&self) -> Option<Scheduling> {
let inner = self.msg_and_id.inner.lock();
inner
.metadata
.as_ref()
.and_then(|meta| meta.schedule.clone())
}
pub fn get_due(&self) -> Option<DateTime<Utc>> {
let inner = self.msg_and_id.inner.lock();
inner.due
}
pub async fn delay_with_jitter(&self, limit: i64) -> anyhow::Result<Option<DateTime<Utc>>> {
let scale = rand::random::<f32>();
let value = (scale * limit as f32) as i64;
self.delay_by(seconds(value)?).await
}
pub async fn delay_by(
&self,
duration: chrono::Duration,
) -> anyhow::Result<Option<DateTime<Utc>>> {
let due = Utc::now() + duration;
self.set_due(Some(due)).await
}
pub async fn delay_by_and_jitter(
&self,
duration: chrono::Duration,
) -> anyhow::Result<Option<DateTime<Utc>>> {
let scale = rand::random::<f32>();
let value = (scale * 60.) as i64;
let due = Utc::now() + duration + seconds(value)?;
self.set_due(Some(due)).await
}
pub async fn set_due(
&self,
due: Option<DateTime<Utc>>,
) -> anyhow::Result<Option<DateTime<Utc>>> {
let due = {
let mut inner = self.msg_and_id.inner.lock();
if !inner.flags.contains(MessageFlags::SCHEDULED) {
inner.due = due;
return Ok(inner.due);
}
let due = due.unwrap_or_else(|| Utc::now());
if let Some(meta) = &inner.metadata {
inner.due = match &meta.schedule {
Some(sched) => Some(sched.adjust_for_schedule(due)),
None => Some(due),
};
return Ok(inner.due);
}
due
};
self.load_meta().await?;
{
let mut inner = self.msg_and_id.inner.lock();
match &inner.metadata {
Some(meta) => {
inner.due = match &meta.schedule {
Some(sched) => Some(sched.adjust_for_schedule(due)),
None => Some(due),
};
Ok(inner.due)
}
None => anyhow::bail!("loaded metadata, but metadata is not set!?"),
}
}
}
fn get_data_if_dirty(&self) -> Option<Arc<Box<[u8]>>> {
let inner = self.msg_and_id.inner.lock();
if inner.flags.contains(MessageFlags::DATA_DIRTY) {
Some(Arc::clone(&inner.data))
} else {
None
}
}
fn get_meta_if_dirty(&self) -> Option<MetaData> {
let inner = self.msg_and_id.inner.lock();
if inner.flags.contains(MessageFlags::META_DIRTY) {
inner.metadata.as_ref().map(|md| (**md).clone())
} else {
None
}
}
pub fn set_force_sync(&self, force: bool) {
let mut inner = self.msg_and_id.inner.lock();
inner.flags.set(MessageFlags::FORCE_SYNC, force);
}
pub fn needs_save(&self) -> bool {
let inner = self.msg_and_id.inner.lock();
inner.flags.contains(MessageFlags::META_DIRTY)
|| inner.flags.contains(MessageFlags::DATA_DIRTY)
}
pub async fn save(&self, deadline: Option<Instant>) -> anyhow::Result<()> {
let _timer = SAVE_HIST.start_timer();
self.save_to(&**get_meta_spool(), &**get_data_spool(), deadline)
.await
}
pub async fn save_to(
&self,
meta_spool: &(dyn Spool + Send + Sync),
data_spool: &(dyn Spool + Send + Sync),
deadline: Option<Instant>,
) -> anyhow::Result<()> {
let force_sync = self
.msg_and_id
.inner
.lock()
.flags
.contains(MessageFlags::FORCE_SYNC);
let data_fut = if let Some(data) = self.get_data_if_dirty() {
anyhow::ensure!(!data.is_empty(), "message data must not be empty");
data_spool
.store(self.msg_and_id.id, data, force_sync, deadline)
.map(|_| true)
.boxed()
} else {
futures::future::ready(false).boxed()
};
let meta_fut = if let Some(meta) = self.get_meta_if_dirty() {
let meta = Arc::new(serde_json::to_vec(&meta)?.into_boxed_slice());
meta_spool
.store(self.msg_and_id.id, meta, force_sync, deadline)
.map(|_| true)
.boxed()
} else {
futures::future::ready(false).boxed()
};
let (data_res, meta_res) = tokio::join!(data_fut, meta_fut);
if data_res {
self.msg_and_id
.inner
.lock()
.flags
.remove(MessageFlags::DATA_DIRTY);
}
if meta_res {
self.msg_and_id
.inner
.lock()
.flags
.remove(MessageFlags::META_DIRTY);
}
Ok(())
}
pub fn id(&self) -> &SpoolId {
&self.msg_and_id.id
}
pub async fn save_and_shrink(&self) -> anyhow::Result<bool> {
self.save(None).await?;
self.shrink()
}
pub async fn save_and_shrink_data(&self) -> anyhow::Result<bool> {
self.save(None).await?;
self.shrink_data()
}
pub fn shrink_data(&self) -> anyhow::Result<bool> {
let mut inner = self.msg_and_id.inner.lock();
let mut did_shrink = false;
if inner.flags.contains(MessageFlags::DATA_DIRTY) {
anyhow::bail!("Cannot shrink message: DATA_DIRTY");
}
if !inner.data.is_empty() {
DATA_COUNT.dec();
did_shrink = true;
}
if !inner.data.is_empty() {
inner.data = NO_DATA.clone();
did_shrink = true;
}
Ok(did_shrink)
}
pub fn shrink(&self) -> anyhow::Result<bool> {
let mut inner = self.msg_and_id.inner.lock();
let mut did_shrink = false;
if inner.flags.contains(MessageFlags::DATA_DIRTY) {
anyhow::bail!("Cannot shrink message: DATA_DIRTY");
}
if inner.flags.contains(MessageFlags::META_DIRTY) {
anyhow::bail!("Cannot shrink message: META_DIRTY");
}
if inner.metadata.take().is_some() {
META_COUNT.dec();
did_shrink = true;
}
if !inner.data.is_empty() {
DATA_COUNT.dec();
did_shrink = true;
}
if !inner.data.is_empty() {
inner.data = NO_DATA.clone();
did_shrink = true;
}
Ok(did_shrink)
}
pub fn sender(&self) -> anyhow::Result<EnvelopeAddress> {
let inner = self.msg_and_id.inner.lock();
match &inner.metadata {
Some(meta) => Ok(meta.sender.clone()),
None => anyhow::bail!("metadata is not loaded"),
}
}
pub fn set_sender(&self, sender: EnvelopeAddress) -> anyhow::Result<()> {
let mut inner = self.msg_and_id.inner.lock();
match &mut inner.metadata {
Some(meta) => {
meta.sender = sender;
inner.flags.set(MessageFlags::DATA_DIRTY, true);
Ok(())
}
None => anyhow::bail!("metadata is not loaded"),
}
}
pub fn recipient(&self) -> anyhow::Result<EnvelopeAddress> {
let inner = self.msg_and_id.inner.lock();
match &inner.metadata {
Some(meta) => Ok(meta.recipient.clone()),
None => anyhow::bail!("metadata is not loaded"),
}
}
pub fn set_recipient(&self, recipient: EnvelopeAddress) -> anyhow::Result<()> {
let mut inner = self.msg_and_id.inner.lock();
match &mut inner.metadata {
Some(meta) => {
meta.recipient = recipient;
inner.flags.set(MessageFlags::DATA_DIRTY, true);
Ok(())
}
None => anyhow::bail!("metadata is not loaded"),
}
}
pub fn is_meta_loaded(&self) -> bool {
self.msg_and_id.inner.lock().metadata.is_some()
}
pub fn is_data_loaded(&self) -> bool {
!self.msg_and_id.inner.lock().data.is_empty()
}
pub async fn load_meta_if_needed(&self) -> anyhow::Result<()> {
if self.is_meta_loaded() {
return Ok(());
}
self.load_meta().await
}
pub async fn load_data_if_needed(&self) -> anyhow::Result<()> {
if self.is_data_loaded() {
return Ok(());
}
self.load_data().await
}
pub async fn load_meta(&self) -> anyhow::Result<()> {
let _timer = LOAD_META_HIST.start_timer();
self.load_meta_from(&**get_meta_spool()).await
}
pub async fn load_meta_from(
&self,
meta_spool: &(dyn Spool + Send + Sync),
) -> anyhow::Result<()> {
let id = self.id();
let data = meta_spool.load(*id).await?;
let mut inner = self.msg_and_id.inner.lock();
let was_not_loaded = inner.metadata.is_none();
let metadata: MetaData = serde_json::from_slice(&data)?;
inner.metadata.replace(Box::new(metadata));
if was_not_loaded {
META_COUNT.inc();
}
Ok(())
}
pub async fn load_data(&self) -> anyhow::Result<()> {
let _timer = LOAD_DATA_HIST.start_timer();
self.load_data_from(&**get_data_spool()).await
}
pub async fn load_data_from(
&self,
data_spool: &(dyn Spool + Send + Sync),
) -> anyhow::Result<()> {
let data = data_spool.load(*self.id()).await?;
let mut inner = self.msg_and_id.inner.lock();
let was_empty = inner.data.is_empty();
inner.data = Arc::new(data.into_boxed_slice());
if was_empty {
DATA_COUNT.inc();
}
Ok(())
}
pub fn assign_data(&self, data: Vec<u8>) {
let mut inner = self.msg_and_id.inner.lock();
let was_empty = inner.data.is_empty();
inner.data = Arc::new(data.into_boxed_slice());
inner.flags.set(MessageFlags::DATA_DIRTY, true);
if was_empty {
DATA_COUNT.inc();
}
}
pub fn get_data(&self) -> Arc<Box<[u8]>> {
let inner = self.msg_and_id.inner.lock();
inner.data.clone()
}
pub fn set_meta<S: AsRef<str>, V: Into<serde_json::Value>>(
&self,
key: S,
value: V,
) -> anyhow::Result<()> {
let mut inner = self.msg_and_id.inner.lock();
match &mut inner.metadata {
None => anyhow::bail!("metadata must be loaded first"),
Some(meta) => {
let key = key.as_ref();
let value = value.into();
match &mut meta.meta {
serde_json::Value::Object(map) => {
map.insert(key.to_string(), value);
}
_ => anyhow::bail!("metadata is somehow not a json object"),
}
inner.flags.set(MessageFlags::META_DIRTY, true);
Ok(())
}
}
}
pub fn get_meta_string<S: serde_json::value::Index + std::fmt::Display + Copy>(
&self,
key: S,
) -> anyhow::Result<Option<String>> {
match self.get_meta(key) {
Ok(serde_json::Value::String(value)) => Ok(Some(value.to_string())),
Ok(serde_json::Value::Null) => Ok(None),
hmm => {
anyhow::bail!("expected '{key}' to be a string value, got {hmm:?}");
}
}
}
pub fn get_meta_obj(&self) -> anyhow::Result<serde_json::Value> {
let inner = self.msg_and_id.inner.lock();
match &inner.metadata {
None => anyhow::bail!("metadata must be loaded first"),
Some(meta) => Ok(meta.meta.clone()),
}
}
pub fn get_meta<S: serde_json::value::Index>(
&self,
key: S,
) -> anyhow::Result<serde_json::Value> {
let inner = self.msg_and_id.inner.lock();
match &inner.metadata {
None => anyhow::bail!("metadata must be loaded first"),
Some(meta) => match meta.meta.get(key) {
Some(value) => Ok(value.clone()),
None => Ok(serde_json::Value::Null),
},
}
}
pub fn age(&self, now: DateTime<Utc>) -> chrono::Duration {
self.msg_and_id.id.age(now)
}
pub fn get_queue_name(&self) -> anyhow::Result<String> {
Ok(match self.get_meta_string("queue")? {
Some(name) => name,
None => {
let name = QueueNameComponents::format(
self.get_meta_string("campaign")?,
self.get_meta_string("tenant")?,
self.recipient()?.domain().to_string().to_lowercase(),
self.get_meta_string("routing_domain")?,
);
name.to_string()
}
})
}
#[cfg(feature = "impl")]
pub async fn dkim_verify(&self) -> anyhow::Result<Vec<AuthenticationResult>> {
let resolver = dns_resolver::get_resolver();
let data = self.get_data();
let bytes = mailparsing::SharedString::try_from(data.as_ref().as_ref())?;
let parsed = mailparsing::Header::parse_headers(bytes.clone())?;
if parsed
.overall_conformance
.contains(MessageConformance::NON_CANONICAL_LINE_ENDINGS)
{
return Ok(vec![AuthenticationResult {
method: "dkim".to_string(),
method_version: None,
result: "permerror".to_string(),
reason: Some("message has non-canonical line endings".to_string()),
props: Default::default(),
}]);
}
let message = kumo_dkim::ParsedEmail::HeaderOnlyParse { bytes, parsed };
let from = message
.get_headers()
.from()
.map_err(any_err)?
.ok_or_else(|| anyhow::anyhow!("Missing or invalid From header"))?
.0;
if from.len() != 1 {
anyhow::bail!(
"From header must have a single sender, found {}",
from.len()
);
}
let from_domain = &from[0].address.domain;
let results =
kumo_dkim::verify_email_with_resolver(from_domain, &message, &**resolver).await?;
Ok(results)
}
pub fn parse_rfc3464(&self) -> anyhow::Result<Option<Report>> {
let data = self.get_data();
Report::parse(&data)
}
pub fn parse_rfc5965(&self) -> anyhow::Result<Option<ARFReport>> {
let data = self.get_data();
ARFReport::parse(&data)
}
pub fn prepend_header(&self, name: Option<&str>, value: &str) {
let data = self.get_data();
let mut new_data = Vec::with_capacity(size_header(name, value) + 2 + data.len());
emit_header(&mut new_data, name, value);
new_data.extend_from_slice(&data);
self.assign_data(new_data);
}
pub fn append_header(&self, name: Option<&str>, value: &str) {
let data = self.get_data();
let mut new_data = Vec::with_capacity(size_header(name, value) + 2 + data.len());
for (idx, window) in data.windows(4).enumerate() {
if window == b"\r\n\r\n" {
let headers = &data[0..idx + 2];
let body = &data[idx + 2..];
new_data.extend_from_slice(&headers);
emit_header(&mut new_data, name, value);
new_data.extend_from_slice(&body);
self.assign_data(new_data);
return;
}
}
}
pub fn get_address_header(
&self,
header_name: &str,
) -> anyhow::Result<Option<HeaderAddressList>> {
let data = self.get_data();
let HeaderParseResult { headers, .. } =
mailparsing::Header::parse_headers(data.as_ref().as_ref())?;
match headers.get_first(header_name) {
Some(hdr) => {
let list = hdr.as_address_list()?;
let result: HeaderAddressList = list.into();
Ok(Some(result))
}
None => Ok(None),
}
}
pub fn get_first_named_header_value(&self, name: &str) -> anyhow::Result<Option<String>> {
let data = self.get_data();
let HeaderParseResult { headers, .. } = Header::parse_headers(data.as_ref().as_ref())?;
match headers.get_first(name) {
Some(hdr) => Ok(Some(hdr.as_unstructured()?)),
None => Ok(None),
}
}
pub fn get_all_named_header_values(&self, name: &str) -> anyhow::Result<Vec<String>> {
let data = self.get_data();
let HeaderParseResult { headers, .. } = Header::parse_headers(data.as_ref().as_ref())?;
let mut values = vec![];
for hdr in headers.iter_named(name) {
values.push(hdr.as_unstructured()?);
}
Ok(values)
}
pub fn get_all_headers(&self) -> anyhow::Result<Vec<(String, String)>> {
let data = self.get_data();
let HeaderParseResult { headers, .. } = Header::parse_headers(data.as_ref().as_ref())?;
let mut values = vec![];
for hdr in headers.iter() {
values.push((hdr.get_name().to_string(), hdr.as_unstructured()?));
}
Ok(values)
}
pub fn retain_headers<F: FnMut(&Header) -> bool>(&self, mut func: F) -> anyhow::Result<()> {
let data = self.get_data();
let mut new_data = Vec::with_capacity(data.len());
let HeaderParseResult {
headers,
body_offset,
..
} = Header::parse_headers(data.as_ref().as_ref())?;
for hdr in headers.iter() {
let retain = (func)(hdr);
if !retain {
continue;
}
hdr.write_header(&mut new_data)?;
}
new_data.extend_from_slice(b"\r\n");
new_data.extend_from_slice(&data[body_offset..]);
self.assign_data(new_data);
Ok(())
}
pub fn remove_first_named_header(&self, name: &str) -> anyhow::Result<()> {
let mut removed = false;
self.retain_headers(|hdr| {
if hdr.get_name().eq_ignore_ascii_case(name) && !removed {
removed = true;
false
} else {
true
}
})
}
pub fn import_x_headers(&self, names: Vec<String>) -> anyhow::Result<()> {
let data = self.get_data();
let HeaderParseResult { headers, .. } = Header::parse_headers(data.as_ref().as_ref())?;
for hdr in headers.iter() {
let do_import = if names.is_empty() {
is_x_header(hdr.get_name())
} else {
is_header_in_names_list(hdr.get_name(), &names)
};
if do_import {
let name = imported_header_name(hdr.get_name());
self.set_meta(name, hdr.as_unstructured()?)?;
}
}
Ok(())
}
pub fn remove_x_headers(&self, names: Vec<String>) -> anyhow::Result<()> {
self.retain_headers(|hdr| {
if names.is_empty() {
!is_x_header(hdr.get_name())
} else {
!is_header_in_names_list(hdr.get_name(), &names)
}
})
}
pub fn remove_all_named_headers(&self, name: &str) -> anyhow::Result<()> {
self.retain_headers(|hdr| !hdr.get_name().eq_ignore_ascii_case(name))
}
#[cfg(feature = "impl")]
pub async fn dkim_sign(&self, signer: Signer) -> anyhow::Result<()> {
if let Some(runtime) = SIGN_POOL.get() {
let msg = self.clone();
runtime
.spawn_blocking(move || {
let data = msg.get_data();
let header = signer.sign(&data)?;
msg.prepend_header(None, &header);
Ok::<(), anyhow::Error>(())
})
.await??;
} else {
let data = self.get_data();
let header = signer.sign(&data)?;
self.prepend_header(None, &header);
}
Ok(())
}
pub fn import_scheduling_header(
&self,
header_name: &str,
remove: bool,
) -> anyhow::Result<Option<Scheduling>> {
if let Some(value) = self.get_first_named_header_value(header_name)? {
let sched: Scheduling = serde_json::from_str(&value).with_context(|| {
format!("{value} from header {header_name} is not a valid Scheduling header")
})?;
let result = self.set_scheduling(Some(sched))?;
if remove {
self.remove_all_named_headers(header_name)?;
}
Ok(result)
} else {
Ok(None)
}
}
pub fn append_text_plain(&self, content: &str) -> anyhow::Result<bool> {
let data = self.get_data();
let mut msg = MimePart::parse(data.as_ref().as_ref())?;
let parts = msg.simplified_structure_pointers()?;
if let Some(p) = parts.text_part.and_then(|p| msg.resolve_ptr_mut(p)) {
match p.body()? {
DecodedBody::Text(text) => {
let mut text = text.as_str().to_string();
text.push_str("\r\n");
text.push_str(content);
p.replace_text_body("text/plain", &text);
let new_data = msg.to_message_string();
self.assign_data(new_data.into_bytes());
Ok(true)
}
DecodedBody::Binary(_) => {
anyhow::bail!("expected text/plain part to be text, but it is binary");
}
}
} else {
Ok(false)
}
}
pub fn append_text_html(&self, content: &str) -> anyhow::Result<bool> {
let data = self.get_data();
let mut msg = MimePart::parse(data.as_ref().as_ref())?;
let parts = msg.simplified_structure_pointers()?;
if let Some(p) = parts.html_part.and_then(|p| msg.resolve_ptr_mut(p)) {
match p.body()? {
DecodedBody::Text(text) => {
let mut text = text.as_str().to_string();
match text.rfind("</body>").or_else(|| text.rfind("</BODY>")) {
Some(idx) => {
text.insert_str(idx, content);
text.insert_str(idx, "\r\n");
}
None => {
text.push_str("\r\n");
text.push_str(content);
}
}
p.replace_text_body("text/html", &text);
let new_data = msg.to_message_string();
self.assign_data(new_data.into_bytes());
Ok(true)
}
DecodedBody::Binary(_) => {
anyhow::bail!("expected text/html part to be text, but it is binary");
}
}
} else {
Ok(false)
}
}
pub fn check_fix_conformance(
&self,
check: MessageConformance,
fix: MessageConformance,
) -> anyhow::Result<()> {
let data = self.get_data();
let mut msg = MimePart::parse(data.as_ref().as_ref())?;
let conformance = msg.conformance();
let check = check - fix;
if check.intersects(conformance) {
let problems = check.intersection(conformance).to_string();
anyhow::bail!("Message has conformance issues: {problems}");
}
if fix.intersects(conformance) {
let to_fix = fix.intersection(conformance);
let problems = to_fix.to_string();
let missing_headers_only = to_fix
.difference(
MessageConformance::MISSING_DATE_HEADER
| MessageConformance::MISSING_MIME_VERSION
| MessageConformance::MISSING_MESSAGE_ID_HEADER,
)
.is_empty();
if !missing_headers_only {
msg = msg.rebuild().with_context(|| {
format!("Rebuilding message to correct conformance issues: {problems}")
})?;
}
if to_fix.contains(MessageConformance::MISSING_DATE_HEADER) {
msg.headers_mut().set_date(Utc::now());
}
if to_fix.contains(MessageConformance::MISSING_MIME_VERSION) {
msg.headers_mut().set_mime_version("1.0");
}
if to_fix.contains(MessageConformance::MISSING_MESSAGE_ID_HEADER) {
let sender = self.sender()?;
let domain = sender.domain();
let id = *self.id();
msg.headers_mut()
.set_message_id(mailparsing::MessageID(format!("{id}@{domain}")));
}
let new_data = msg.to_message_string();
self.assign_data(new_data.into_bytes());
}
Ok(())
}
}
fn is_header_in_names_list(hdr_name: &str, names: &[String]) -> bool {
for name in names {
if hdr_name.eq_ignore_ascii_case(name) {
return true;
}
}
false
}
fn imported_header_name(name: &str) -> String {
name.chars()
.map(|c| match c.to_ascii_lowercase() {
'-' => '_',
c => c,
})
.collect()
}
fn is_x_header(name: &str) -> bool {
name.starts_with("X-") || name.starts_with("x-")
}
fn size_header(name: Option<&str>, value: &str) -> usize {
name.map(|name| name.len() + 2).unwrap_or(0) + value.len()
}
fn emit_header(dest: &mut Vec<u8>, name: Option<&str>, value: &str) {
if let Some(name) = name {
dest.extend_from_slice(name.as_bytes());
dest.extend_from_slice(b": ");
}
dest.extend_from_slice(value.as_bytes());
if !value.ends_with("\r\n") {
dest.extend_from_slice(b"\r\n");
}
}
#[cfg(feature = "impl")]
impl UserData for Message {
fn add_methods<M: UserDataMethods<Self>>(methods: &mut M) {
methods.add_method(
"set_meta",
move |_, this, (name, value): (String, mlua::Value)| {
let value = serde_json::value::to_value(value).map_err(any_err)?;
this.set_meta(name, value).map_err(any_err)?;
Ok(())
},
);
methods.add_method("get_meta", move |lua, this, name: String| {
let value = this.get_meta(name).map_err(any_err)?;
Ok(Some(lua.to_value_with(&value, serialize_options())?))
});
methods.add_method("get_data", move |lua, this, _: ()| {
let data = this.get_data();
lua.create_string(&*data)
});
methods.add_method("set_data", move |_lua, this, data: mlua::String| {
this.assign_data(data.as_bytes().to_vec());
Ok(())
});
methods.add_method("append_text_plain", move |_lua, this, data: String| {
this.append_text_plain(&data).map_err(any_err)
});
methods.add_method("append_text_html", move |_lua, this, data: String| {
this.append_text_html(&data).map_err(any_err)
});
methods.add_method("id", move |_, this, _: ()| Ok(this.id().to_string()));
methods.add_method("sender", move |_, this, _: ()| {
Ok(this.sender().map_err(any_err)?)
});
methods.add_method("num_attempts", move |_, this, _: ()| {
Ok(this.get_num_attempts())
});
methods.add_method("queue_name", move |_, this, _: ()| {
Ok(this.get_queue_name().map_err(any_err)?)
});
methods.add_async_method("set_due", move |lua, this, due: mlua::Value| async move {
let due: Option<DateTime<Utc>> = lua.from_value(due)?;
let revised_due = this.set_due(due).await.map_err(any_err)?;
lua.to_value(&revised_due)
});
methods.add_method("set_sender", move |lua, this, value: mlua::Value| {
let sender = match value {
mlua::Value::String(s) => {
let s = s.to_str()?;
EnvelopeAddress::parse(&s).map_err(any_err)?
}
_ => lua.from_value::<EnvelopeAddress>(value.clone())?,
};
Ok(this.set_sender(sender).map_err(any_err)?)
});
methods.add_method("recipient", move |_, this, _: ()| {
Ok(this.recipient().map_err(any_err)?)
});
methods.add_method("set_recipient", move |lua, this, value: mlua::Value| {
let recipient = match value {
mlua::Value::String(s) => {
let s = s.to_str()?;
EnvelopeAddress::parse(&s).map_err(any_err)?
}
_ => lua.from_value::<EnvelopeAddress>(value.clone())?,
};
Ok(this.set_recipient(recipient).map_err(any_err)?)
});
#[cfg(feature = "impl")]
methods.add_async_method("dkim_sign", |_, this, signer: Signer| async move {
Ok(this.dkim_sign(signer).await.map_err(any_err)?)
});
methods.add_async_method("shrink", |_, this, _: ()| async move {
if this.needs_save() {
this.save(None).await.map_err(any_err)?;
}
this.shrink().map_err(any_err)
});
methods.add_async_method("shrink_data", |_, this, _: ()| async move {
if this.needs_save() {
this.save(None).await.map_err(any_err)?;
}
this.shrink_data().map_err(any_err)
});
methods.add_method(
"add_authentication_results",
move |lua, this, (serv_id, results): (String, mlua::Value)| {
let results: Vec<AuthenticationResult> = lua.from_value(results)?;
let results = AuthenticationResults {
serv_id,
version: None,
results,
};
this.prepend_header(Some("Authentication-Results"), &results.encode_value());
Ok(())
},
);
#[cfg(feature = "impl")]
methods.add_async_method("dkim_verify", |lua, this, ()| async move {
let results = this.dkim_verify().await.map_err(any_err)?;
lua.to_value_with(&results, serialize_options())
});
methods.add_method(
"prepend_header",
move |_, this, (name, value): (String, String)| {
Ok(this.prepend_header(Some(&name), &value))
},
);
methods.add_method(
"append_header",
move |_, this, (name, value): (String, String)| {
Ok(this.append_header(Some(&name), &value))
},
);
methods.add_method("get_address_header", move |_, this, name: String| {
Ok(this.get_address_header(&name).map_err(any_err)?)
});
methods.add_method("from_header", move |_, this, ()| {
Ok(this.get_address_header("From").map_err(any_err)?)
});
methods.add_method("to_header", move |_, this, ()| {
Ok(this.get_address_header("To").map_err(any_err)?)
});
methods.add_method(
"get_first_named_header_value",
move |_, this, name: String| {
Ok(this.get_first_named_header_value(&name).map_err(any_err)?)
},
);
methods.add_method(
"get_all_named_header_values",
move |_, this, name: String| {
Ok(this.get_all_named_header_values(&name).map_err(any_err)?)
},
);
methods.add_method("get_all_headers", move |_, this, _: ()| {
Ok(this
.get_all_headers()
.map_err(any_err)?
.into_iter()
.map(|(name, value)| vec![name, value])
.collect::<Vec<Vec<String>>>())
});
methods.add_method("get_all_headers", move |_, this, _: ()| {
Ok(this
.get_all_headers()
.map_err(any_err)?
.into_iter()
.map(|(name, value)| vec![name, value])
.collect::<Vec<Vec<String>>>())
});
methods.add_method(
"import_x_headers",
move |_, this, names: Option<Vec<String>>| {
Ok(this
.import_x_headers(names.unwrap_or_else(|| vec![]))
.map_err(any_err)?)
},
);
methods.add_method(
"remove_x_headers",
move |_, this, names: Option<Vec<String>>| {
Ok(this
.remove_x_headers(names.unwrap_or_else(|| vec![]))
.map_err(any_err)?)
},
);
methods.add_method("remove_all_named_headers", move |_, this, name: String| {
Ok(this.remove_all_named_headers(&name).map_err(any_err)?)
});
methods.add_method(
"import_scheduling_header",
move |lua, this, (header_name, remove): (String, bool)| {
let opt_schedule = this
.import_scheduling_header(&header_name, remove)
.map_err(any_err)?;
lua.to_value(&opt_schedule)
},
);
methods.add_method("set_scheduling", move |lua, this, params: mlua::Value| {
let sched: Option<Scheduling> = from_lua_value(lua, params)?;
let opt_schedule = this.set_scheduling(sched).map_err(any_err)?;
lua.to_value(&opt_schedule)
});
methods.add_method("parse_rfc3464", move |lua, this, _: ()| {
let report = this.parse_rfc3464().map_err(any_err)?;
match report {
Some(report) => lua.to_value_with(&report, serialize_options()),
None => Ok(mlua::Value::Nil),
}
});
methods.add_method("parse_rfc5965", move |lua, this, _: ()| {
let report = this.parse_rfc5965().map_err(any_err)?;
match report {
Some(report) => lua.to_value_with(&report, serialize_options()),
None => Ok(mlua::Value::Nil),
}
});
methods.add_async_method("save", |_, this, ()| async move {
this.save(None).await.map_err(any_err)
});
methods.add_method("set_force_sync", move |_, this, force: bool| {
this.set_force_sync(force);
Ok(())
});
methods.add_async_method(
"check_fix_conformance",
|_, this, (check, fix): (String, String)| async move {
use std::str::FromStr;
let check = MessageConformance::from_str(&check).map_err(any_err)?;
let fix = MessageConformance::from_str(&fix).map_err(any_err)?;
match this.check_fix_conformance(check, fix) {
Ok(_) => Ok(None),
Err(err) => Ok(Some(format!("{err:#}"))),
}
},
);
}
}
impl TimerEntryWithDelay for WeakMessage {
fn delay(&self) -> Duration {
match self.upgrade() {
None => {
Duration::from_millis(0)
}
Some(msg) => msg.delay(),
}
}
}
impl TimerEntryWithDelay for Message {
fn delay(&self) -> Duration {
let inner = self.msg_and_id.inner.lock();
match inner.due {
Some(time) => {
let now = Utc::now();
let delta = time - now;
delta.to_std().unwrap_or(Duration::from_millis(0))
}
None => Duration::from_millis(0),
}
}
}
#[cfg(test)]
mod test {
use super::*;
use serde_json::json;
fn new_msg_body<S: AsRef<str>>(s: S) -> Message {
Message::new_dirty(
SpoolId::new(),
EnvelopeAddress::parse("sender@example.com").unwrap(),
EnvelopeAddress::parse("recip@example.com").unwrap(),
serde_json::json!({}),
Arc::new(s.as_ref().as_bytes().to_vec().into_boxed_slice()),
)
.unwrap()
}
fn data_as_string(msg: &Message) -> String {
String::from_utf8(msg.get_data().to_vec()).unwrap()
}
const X_HDR_CONTENT: &str =
"X-Hello: there\r\nX-Header: value\r\nSubject: Hello\r\nFrom :Someone\r\n\r\nBody";
#[test]
fn import_all_x_headers() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.import_x_headers(vec![]).unwrap();
k9::assert_equal!(
msg.get_meta_obj().unwrap(),
json!({
"x_hello": "there",
"x_header": "value",
})
);
}
#[test]
fn meta_and_nil() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.set_meta("test", serde_json::Value::Null).unwrap();
k9::assert_equal!(msg.get_meta("test").unwrap(), serde_json::Value::Null);
let lua = mlua::Lua::new();
lua.globals().set("msg", msg).unwrap();
lua.load("assert(msg:get_meta('test') == nil)")
.exec()
.unwrap();
}
#[test]
fn import_some_x_headers() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.import_x_headers(vec!["x-hello".to_string()]).unwrap();
k9::assert_equal!(
msg.get_meta_obj().unwrap(),
json!({
"x_hello": "there",
})
);
}
#[test]
fn remove_all_x_headers() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.remove_x_headers(vec![]).unwrap();
k9::assert_equal!(
data_as_string(&msg),
"Subject: Hello\r\nFrom :Someone\r\n\r\nBody"
);
}
#[test]
fn prepend_header_2_params() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.prepend_header(Some("Date"), "Today");
k9::assert_equal!(
data_as_string(&msg),
"Date: Today\r\nX-Hello: there\r\nX-Header: value\r\nSubject: Hello\r\nFrom :Someone\r\n\r\nBody"
);
}
#[test]
fn prepend_header_1_params() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.prepend_header(None, "Date: Today");
k9::assert_equal!(
data_as_string(&msg),
"Date: Today\r\nX-Hello: there\r\nX-Header: value\r\nSubject: Hello\r\nFrom :Someone\r\n\r\nBody"
);
}
#[test]
fn append_header_2_params() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.append_header(Some("Date"), "Today");
k9::assert_equal!(
data_as_string(&msg),
"X-Hello: there\r\nX-Header: value\r\nSubject: Hello\r\nFrom :Someone\r\nDate: Today\r\n\r\nBody"
);
}
#[test]
fn append_header_1_params() {
let msg = new_msg_body(X_HDR_CONTENT);
msg.append_header(None, "Date: Today");
k9::assert_equal!(
data_as_string(&msg),
"X-Hello: there\r\nX-Header: value\r\nSubject: Hello\r\nFrom :Someone\r\nDate: Today\r\n\r\nBody"
);
}
const MULTI_HEADER_CONTENT: &str =
"X-Hello: there\r\nX-Header: value\r\nSubject: Hello\r\nX-Header: another value\r\nFrom :Someone@somewhere\r\n\r\nBody";
#[test]
fn get_first_header() {
let msg = new_msg_body(MULTI_HEADER_CONTENT);
k9::assert_equal!(
msg.get_first_named_header_value("X-header")
.unwrap()
.unwrap(),
"value"
);
}
#[test]
fn get_all_header() {
let msg = new_msg_body(MULTI_HEADER_CONTENT);
k9::assert_equal!(
msg.get_all_named_header_values("X-header").unwrap(),
vec!["value".to_string(), "another value".to_string()]
);
}
#[test]
fn remove_first() {
let msg = new_msg_body(MULTI_HEADER_CONTENT);
msg.remove_first_named_header("X-header").unwrap();
k9::assert_equal!(
data_as_string(&msg),
"X-Hello: there\r\nSubject: Hello\r\nX-Header: another value\r\nFrom :Someone@somewhere\r\n\r\nBody"
);
}
#[test]
fn remove_all() {
let msg = new_msg_body(MULTI_HEADER_CONTENT);
msg.remove_all_named_headers("X-header").unwrap();
k9::assert_equal!(
data_as_string(&msg),
"X-Hello: there\r\nSubject: Hello\r\nFrom :Someone@somewhere\r\n\r\nBody"
);
}
#[test]
fn append_text_plain() {
let msg = new_msg_body(MULTI_HEADER_CONTENT);
msg.append_text_plain("I am at the bottom").unwrap();
k9::assert_equal!(
data_as_string(&msg),
"X-Hello: there\r\n\
X-Header: value\r\n\
Subject: Hello\r\n\
X-Header: another value\r\n\
From :Someone@somewhere\r\n\
Content-Type: text/plain;\r\n\
\tcharset=\"us-ascii\"\r\n\
\r\n\
Body\r\n\
I am at the bottom\r\n"
);
}
const MIXED_CONTENT: &str = "Content-Type: multipart/mixed;\r\n\
\tboundary=\"my-boundary\"\r\n\
\r\n\
--my-boundary\r\n\
Content-Type: text/plain;\r\n\
\tcharset=\"us-ascii\"\r\n\
\r\n\
plain text\r\n\
--my-boundary\r\n\
Content-Type: text/html;\r\n\
\tcharset=\"us-ascii\"\r\n\
\r\n\
<b>rich</b> text\r\n\
--my-boundary\r\n\
Content-Type: application/octet-stream\r\n\
Content-Transfer-Encoding: base64\r\n\
Content-Disposition: attachment;\r\n\
\tfilename=\"woot.bin\"\r\n\
Content-ID: <woot.id@somewhere>\r\n\
\r\n\
AAECAw==\r\n\
--my-boundary--\r\n\
\r\n";
const MIXED_CONTENT_ENCLOSING_BODY: &str = "Content-Type: multipart/mixed;\r\n\
\tboundary=\"my-boundary\"\r\n\
\r\n\
--my-boundary\r\n\
Content-Type: text/plain;\r\n\
\tcharset=\"us-ascii\"\r\n\
\r\n\
plain text\r\n\
--my-boundary\r\n\
Content-Type: text/html;\r\n\
\tcharset=\"us-ascii\"\r\n\
\r\n\
<BODY>\r\n\
<b>rich</b> text\r\n\
</BODY>\r\n\
--my-boundary\r\n\
Content-Type: application/octet-stream\r\n\
Content-Transfer-Encoding: base64\r\n\
Content-Disposition: attachment;\r\n\
\tfilename=\"woot.bin\"\r\n\
Content-ID: <woot.id>\r\n\
\r\n\
AAECAw==\r\n\
--my-boundary--\r\n\
\r\n";
#[test]
fn append_text_html() {
let msg = new_msg_body(MIXED_CONTENT);
msg.append_text_html("bottom html").unwrap();
k9::snapshot!(
data_as_string(&msg),
r#"
Content-Type: multipart/mixed;\r
\tboundary="my-boundary"\r
\r
--my-boundary\r
Content-Type: text/plain;\r
\tcharset="us-ascii"\r
\r
plain text\r
--my-boundary\r
Content-Type: text/html;\r
\tcharset="us-ascii"\r
\r
<b>rich</b> text\r
\r
bottom html\r
--my-boundary\r
Content-Type: application/octet-stream\r
Content-Transfer-Encoding: base64\r
Content-Disposition: attachment;\r
\tfilename="woot.bin"\r
Content-ID: <woot.id@somewhere>\r
\r
AAECAw==\r
--my-boundary--\r
\r
"#
);
let msg = new_msg_body(MIXED_CONTENT_ENCLOSING_BODY);
msg.append_text_html("bottom html 👻").unwrap();
k9::snapshot!(
data_as_string(&msg),
r#"
Content-Type: multipart/mixed;\r
\tboundary="my-boundary"\r
\r
--my-boundary\r
Content-Type: text/plain;\r
\tcharset="us-ascii"\r
\r
plain text\r
--my-boundary\r
Content-Type: text/html;\r
\tcharset="utf-8"\r
Content-Transfer-Encoding: quoted-printable\r
\r
<BODY>\r
<b>rich</b> text\r
\r
bottom html =F0=9F=91=BB</BODY>\r
--my-boundary\r
Content-Type: application/octet-stream\r
Content-Transfer-Encoding: base64\r
Content-Disposition: attachment;\r
\tfilename="woot.bin"\r
Content-ID: <woot.id>\r
\r
AAECAw==\r
--my-boundary--\r
\r
"#
);
}
#[test]
fn append_text_plain_mixed() {
let msg = new_msg_body(MIXED_CONTENT);
msg.append_text_plain("bottom text 👾").unwrap();
k9::snapshot!(
data_as_string(&msg),
r#"
Content-Type: multipart/mixed;\r
\tboundary="my-boundary"\r
\r
--my-boundary\r
Content-Type: text/plain;\r
\tcharset="utf-8"\r
Content-Transfer-Encoding: quoted-printable\r
\r
plain text\r
\r
bottom text =F0=9F=91=BE\r
--my-boundary\r
Content-Type: text/html;\r
\tcharset="us-ascii"\r
\r
<b>rich</b> text\r
--my-boundary\r
Content-Type: application/octet-stream\r
Content-Transfer-Encoding: base64\r
Content-Disposition: attachment;\r
\tfilename="woot.bin"\r
Content-ID: <woot.id@somewhere>\r
\r
AAECAw==\r
--my-boundary--\r
\r
"#
);
}
#[test]
fn check_conformance_angle_msg_id() {
const DOUBLE_ANGLE_ONLY: &str = "Subject: hello\r
Message-ID: <<1234@example.com>>\r
\r
Hello";
let msg = new_msg_body(DOUBLE_ANGLE_ONLY);
k9::snapshot!(
msg.check_fix_conformance(
MessageConformance::MISSING_MESSAGE_ID_HEADER,
MessageConformance::empty(),
)
.unwrap_err(),
"Message has conformance issues: MISSING_MESSAGE_ID_HEADER"
);
msg.check_fix_conformance(
MessageConformance::MISSING_MESSAGE_ID_HEADER,
MessageConformance::MISSING_MESSAGE_ID_HEADER,
)
.unwrap();
const DOUBLE_ANGLE_AND_LONG_LINE: &str = "Subject: hello\r
Message-ID: <<1234@example.com>>\r
\r
Hello this is a really long line Hello this is a really long line \
Hello this is a really long line Hello this is a really long line \
Hello this is a really long line Hello this is a really long line \
Hello this is a really long line Hello this is a really long line \
Hello this is a really long line Hello this is a really long line \
Hello this is a really long line Hello this is a really long line \
Hello this is a really long line Hello this is a really long line
";
let msg = new_msg_body(DOUBLE_ANGLE_AND_LONG_LINE);
msg.check_fix_conformance(
MessageConformance::MISSING_COLON_VALUE,
MessageConformance::MISSING_MESSAGE_ID_HEADER | MessageConformance::LINE_TOO_LONG,
)
.unwrap();
}
#[test]
fn check_conformance() {
let msg = new_msg_body(MULTI_HEADER_CONTENT);
msg.check_fix_conformance(
MessageConformance::default(),
MessageConformance::MISSING_MIME_VERSION,
)
.unwrap();
k9::snapshot!(
data_as_string(&msg),
r#"
X-Hello: there\r
X-Header: value\r
Subject: Hello\r
X-Header: another value\r
From :Someone@somewhere\r
Mime-Version: 1.0\r
\r
Body
"#
);
let msg = new_msg_body(MULTI_HEADER_CONTENT);
msg.check_fix_conformance(
MessageConformance::default(),
MessageConformance::MISSING_MIME_VERSION | MessageConformance::NAME_ENDS_WITH_SPACE,
)
.unwrap();
k9::snapshot!(
data_as_string(&msg),
r#"
Content-Type: text/plain;\r
\tcharset="us-ascii"\r
X-Hello: there\r
X-Header: value\r
Subject: Hello\r
X-Header: another value\r
From: <Someone@somewhere>\r
Mime-Version: 1.0\r
\r
Body\r
"#
);
}
#[test]
fn set_scheduling() -> anyhow::Result<()> {
let msg = new_msg_body(MULTI_HEADER_CONTENT);
assert!(msg.get_due().is_none(), "due is implicitly now");
let now = Utc::now();
let one_day = chrono::Duration::try_days(1).expect("1 day to be valid");
msg.set_scheduling(Some(Scheduling {
restriction: None,
first_attempt: Some((now + one_day).into()),
expires: None,
}))?;
let due = msg.get_due().expect("due to now be set");
assert!(due - now >= one_day, "due time is at least 1 day away");
Ok(())
}
#[cfg(all(test, target_pointer_width = "64"))]
#[test]
fn sizes() {
assert_eq!(std::mem::size_of::<Message>(), 8);
assert_eq!(std::mem::size_of::<MessageInner>(), 32);
assert_eq!(std::mem::size_of::<MessageWithId>(), 72);
}
}