1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
|
use std::collections::HashSet;
use std::num::{NonZeroU32, NonZeroU64};
use std::sync::Arc;
use anyhow::{anyhow, Error, Result};
use futures::stream::{StreamExt, TryStreamExt};
use imap_codec::imap_types::core::Charset;
use imap_codec::imap_types::fetch::MessageDataItem;
use imap_codec::imap_types::flag::{Flag, FlagFetch, FlagPerm, StoreResponse, StoreType};
use imap_codec::imap_types::response::{Code, CodeOther, Data, Status};
use imap_codec::imap_types::search::SearchKey;
use imap_codec::imap_types::sequence::SequenceSet;
use aero_collections::mail::mailbox::Mailbox;
use aero_collections::mail::query::QueryScope;
use aero_collections::mail::snapshot::FrozenMailbox;
use aero_collections::mail::uidindex::{ImapUid, ImapUidvalidity, ModSeq};
use aero_collections::unique_ident::UniqueIdent;
use crate::imap::attributes::AttributesProxy;
use crate::imap::flags;
use crate::imap::index::Index;
use crate::imap::mail_view::{MailView, SeenFlag};
use crate::imap::response::Body;
use crate::imap::search;
const DEFAULT_FLAGS: [Flag; 5] = [
Flag::Seen,
Flag::Answered,
Flag::Flagged,
Flag::Deleted,
Flag::Draft,
];
pub struct UpdateParameters {
pub silence: HashSet<UniqueIdent>,
pub with_modseq: bool,
pub with_uid: bool,
}
impl Default for UpdateParameters {
fn default() -> Self {
Self {
silence: HashSet::new(),
with_modseq: false,
with_uid: false,
}
}
}
/// A MailboxView is responsible for giving the client the information
/// it needs about a mailbox, such as an initial summary of the mailbox's
/// content and continuous updates indicating when the content
/// of the mailbox has been changed.
/// To do this, it keeps a variable `known_state` that corresponds to
/// what the client knows, and produces IMAP messages to be sent to the
/// client that go along updates to `known_state`.
pub struct MailboxView {
pub internal: FrozenMailbox,
pub is_condstore: bool,
}
impl MailboxView {
/// Creates a new IMAP view into a mailbox.
pub async fn new(mailbox: Arc<Mailbox>, is_cond: bool) -> Self {
Self {
internal: mailbox.frozen().await,
is_condstore: is_cond,
}
}
/// Create an updated view, useful to make a diff
/// between what the client knows and new stuff
/// Produces a set of IMAP responses describing the change between
/// what the client knows and what is actually in the mailbox.
/// This does NOT trigger a sync, it bases itself on what is currently
/// loaded in RAM by Bayou.
pub async fn update(&mut self, params: UpdateParameters) -> Result<Vec<Body<'static>>> {
let old_snapshot = self.internal.update().await;
let new_snapshot = &self.internal.snapshot;
let mut data = Vec::<Body>::new();
// Calculate diff between two mailbox states
// See example in IMAP RFC in section on NOOP command:
// we want to produce something like this:
// C: a047 NOOP
// S: * 22 EXPUNGE
// S: * 23 EXISTS
// S: * 14 FETCH (UID 1305 FLAGS (\Seen \Deleted))
// S: a047 OK Noop completed
// In other words:
// - notify client of expunged mails
// - if new mails arrived, notify client of number of existing mails
// - if flags changed for existing mails, tell client
// (for this last step: if uidvalidity changed, do nothing,
// just notify of new uidvalidity and they will resync)
// - notify client of expunged mails
let mut n_expunge = 0;
for (i, (_uid, uuid)) in old_snapshot.idx_by_uid.iter().enumerate() {
if !new_snapshot.table.contains_key(uuid) {
data.push(Body::Data(Data::Expunge(
NonZeroU32::try_from((i + 1 - n_expunge) as u32).unwrap(),
)));
n_expunge += 1;
}
}
// - if new mails arrived, notify client of number of existing mails
if new_snapshot.table.len() != old_snapshot.table.len() - n_expunge
|| new_snapshot.uidvalidity != old_snapshot.uidvalidity
{
data.push(self.exists_status()?);
}
if new_snapshot.uidvalidity != old_snapshot.uidvalidity {
// TODO: do we want to push less/more info than this?
data.push(self.uidvalidity_status()?);
data.push(self.uidnext_status()?);
} else {
// - if flags changed for existing mails, tell client
for (i, (_uid, uuid)) in new_snapshot.idx_by_uid.iter().enumerate() {
if params.silence.contains(uuid) {
continue;
}
let old_mail = old_snapshot.table.get(uuid);
let new_mail = new_snapshot.table.get(uuid);
if old_mail.is_some() && old_mail != new_mail {
if let Some((uid, modseq, flags)) = new_mail {
let mut items = vec![MessageDataItem::Flags(
flags.iter().filter_map(|f| flags::from_str(f)).collect(),
)];
if params.with_uid {
items.push(MessageDataItem::Uid(*uid));
}
if params.with_modseq {
items.push(MessageDataItem::ModSeq(*modseq));
}
data.push(Body::Data(Data::Fetch {
seq: NonZeroU32::try_from((i + 1) as u32).unwrap(),
items: items.try_into()?,
}));
}
}
}
}
Ok(data)
}
/// Generates the necessary IMAP messages so that the client
/// has a satisfactory summary of the current mailbox's state.
/// These are the messages that are sent in response to a SELECT command.
pub fn summary(&self) -> Result<Vec<Body<'static>>> {
let mut data = Vec::<Body>::new();
data.push(self.exists_status()?);
data.push(self.recent_status()?);
data.extend(self.flags_status()?.into_iter());
data.push(self.uidvalidity_status()?);
data.push(self.uidnext_status()?);
if self.is_condstore {
data.push(self.highestmodseq_status()?);
}
/*self.unseen_first_status()?
.map(|unseen_status| data.push(unseen_status));*/
Ok(data)
}
pub async fn store<'a>(
&mut self,
sequence_set: &SequenceSet,
kind: &StoreType,
response: &StoreResponse,
flags: &[Flag<'a>],
unchanged_since: Option<NonZeroU64>,
is_uid_store: &bool,
) -> Result<(Vec<Body<'static>>, Vec<NonZeroU32>)> {
self.internal.sync().await?;
let flags = flags.iter().map(|x| x.to_string()).collect::<Vec<_>>();
let idx = self.index()?;
let (editable, in_conflict) =
idx.fetch_unchanged_since(sequence_set, unchanged_since, *is_uid_store)?;
for mi in editable.iter() {
match kind {
StoreType::Add => {
self.internal.mailbox.add_flags(mi.uuid, &flags[..]).await?;
}
StoreType::Remove => {
self.internal.mailbox.del_flags(mi.uuid, &flags[..]).await?;
}
StoreType::Replace => {
self.internal.mailbox.set_flags(mi.uuid, &flags[..]).await?;
}
}
}
let silence = match response {
StoreResponse::Answer => HashSet::new(),
StoreResponse::Silent => editable.iter().map(|midx| midx.uuid).collect(),
};
let conflict_id_or_uid = match is_uid_store {
true => in_conflict.into_iter().map(|midx| midx.uid).collect(),
_ => in_conflict.into_iter().map(|midx| midx.i).collect(),
};
let summary = self
.update(UpdateParameters {
with_uid: *is_uid_store,
with_modseq: unchanged_since.is_some(),
silence,
})
.await?;
Ok((summary, conflict_id_or_uid))
}
pub async fn idle_sync(&mut self) -> Result<Vec<Body<'static>>> {
self.internal
.mailbox
.notify()
.await
.upgrade()
.ok_or(anyhow!("test"))?
.notified()
.await;
self.internal.mailbox.opportunistic_sync().await?;
self.update(UpdateParameters::default()).await
}
pub async fn expunge(
&mut self,
maybe_seq_set: &Option<SequenceSet>,
) -> Result<Vec<Body<'static>>> {
// Get a recent view to apply our change
self.internal.sync().await?;
let state = self.internal.peek().await;
let idx = Index::new(&state)?;
// Build a default sequence set for the default case
use imap_codec::imap_types::sequence::{SeqOrUid, Sequence};
let seq = match maybe_seq_set {
Some(s) => s.clone(),
None => SequenceSet(
vec![Sequence::Range(
SeqOrUid::Value(NonZeroU32::MIN),
SeqOrUid::Asterisk,
)]
.try_into()
.unwrap(),
),
};
let deleted_flag = Flag::Deleted.to_string();
let msgs = idx
.fetch_on_uid(&seq)
.into_iter()
.filter(|midx| midx.flags.iter().any(|x| *x == deleted_flag))
.map(|midx| midx.uuid);
for msg in msgs {
self.internal.mailbox.delete(msg).await?;
}
self.update(UpdateParameters::default()).await
}
pub async fn copy(
&self,
sequence_set: &SequenceSet,
to: Arc<Mailbox>,
is_uid_copy: &bool,
) -> Result<(ImapUidvalidity, Vec<(ImapUid, ImapUid)>)> {
let idx = self.index()?;
let mails = idx.fetch(sequence_set, *is_uid_copy)?;
let mut new_uuids = vec![];
for mi in mails.iter() {
new_uuids.push(to.copy_from(&self.internal.mailbox, mi.uuid).await?);
}
let mut ret = vec![];
let to_state = to.current_uid_index().await;
for (mi, new_uuid) in mails.iter().zip(new_uuids.iter()) {
let dest_uid = to_state
.table
.get(new_uuid)
.ok_or(anyhow!("copied mail not in destination mailbox"))?
.0;
ret.push((mi.uid, dest_uid));
}
Ok((to_state.uidvalidity, ret))
}
pub async fn r#move(
&mut self,
sequence_set: &SequenceSet,
to: Arc<Mailbox>,
is_uid_copy: &bool,
) -> Result<(ImapUidvalidity, Vec<(ImapUid, ImapUid)>, Vec<Body<'static>>)> {
let idx = self.index()?;
let mails = idx.fetch(sequence_set, *is_uid_copy)?;
for mi in mails.iter() {
to.move_from(&self.internal.mailbox, mi.uuid).await?;
}
let mut ret = vec![];
let to_state = to.current_uid_index().await;
for mi in mails.iter() {
let dest_uid = to_state
.table
.get(&mi.uuid)
.ok_or(anyhow!("moved mail not in destination mailbox"))?
.0;
ret.push((mi.uid, dest_uid));
}
let update = self
.update(UpdateParameters {
with_uid: *is_uid_copy,
..UpdateParameters::default()
})
.await?;
Ok((to_state.uidvalidity, ret, update))
}
/// Looks up state changes in the mailbox and produces a set of IMAP
/// responses describing the new state.
pub async fn fetch<'b>(
&self,
sequence_set: &SequenceSet,
ap: &AttributesProxy,
changed_since: Option<NonZeroU64>,
is_uid_fetch: &bool,
) -> Result<Vec<Body<'static>>> {
// [1/6] Pre-compute data
// a. what are the uuids of the emails we want?
// b. do we need to fetch the full body?
//let ap = AttributesProxy::new(attributes, *is_uid_fetch);
let query_scope = match ap.need_body() {
true => QueryScope::Full,
_ => QueryScope::Partial,
};
tracing::debug!("Query scope {:?}", query_scope);
let idx = self.index()?;
let mail_idx_list = idx.fetch_changed_since(sequence_set, changed_since, *is_uid_fetch)?;
// [2/6] Fetch the emails
let uuids = mail_idx_list
.iter()
.map(|midx| midx.uuid)
.collect::<Vec<_>>();
let query = self.internal.query(&uuids, query_scope);
//let query_result = self.internal.query(&uuids, query_scope).fetch().await?;
let query_stream = query
.fetch()
.zip(futures::stream::iter(mail_idx_list))
// [3/6] Derive an IMAP-specific view from the results, apply the filters
.map(|(maybe_qr, midx)| match maybe_qr {
Ok(qr) => Ok((MailView::new(&qr, midx)?.filter(&ap)?, midx)),
Err(e) => Err(e),
})
// [4/6] Apply the IMAP transformation
.then(|maybe_ret| async move {
let ((body, seen), midx) = maybe_ret?;
// [5/6] Register the \Seen flags
if matches!(seen, SeenFlag::MustAdd) {
let seen_flag = Flag::Seen.to_string();
self.internal
.mailbox
.add_flags(midx.uuid, &[seen_flag])
.await?;
}
Ok::<_, anyhow::Error>(body)
});
// [6/6] Build the final result that will be sent to the client.
query_stream.try_collect().await
}
/// A naive search implementation...
pub async fn search<'a>(
&self,
_charset: &Option<Charset<'a>>,
search_key: &SearchKey<'a>,
uid: bool,
) -> Result<(Vec<Body<'static>>, bool)> {
// 1. Compute the subset of sequence identifiers we need to fetch
// based on the search query
let crit = search::Criteria(search_key);
let (seq_set, seq_type) = crit.to_sequence_set();
// 2. Get the selection
let idx = self.index()?;
let selection = idx.fetch(&seq_set, seq_type.is_uid())?;
// 3. Filter the selection based on the ID / UID / Flags
let (kept_idx, to_fetch) = crit.filter_on_idx(&selection);
// 4.a Fetch additional info about the emails
let query_scope = crit.query_scope();
let uuids = to_fetch.iter().map(|midx| midx.uuid).collect::<Vec<_>>();
let query = self.internal.query(&uuids, query_scope);
// 4.b We don't want to keep all data in memory, so we do the computing in a stream
let query_stream = query
.fetch()
.zip(futures::stream::iter(&to_fetch))
// 5.a Build a mailview with the body, might fail with an error
// 5.b If needed, filter the selection based on the body, but keep the errors
// 6. Drop the query+mailbox, keep only the mail index
// Here we release a lot of memory, this is the most important part ^^
.filter_map(|(maybe_qr, midx)| {
let r = match maybe_qr {
Ok(qr) => match MailView::new(&qr, midx).map(|mv| crit.is_keep_on_query(&mv)) {
Ok(true) => Some(Ok(*midx)),
Ok(_) => None,
Err(e) => Some(Err(e)),
},
Err(e) => Some(Err(e)),
};
futures::future::ready(r)
});
// 7. Chain both streams (part resolved from index, part resolved from metadata+body)
let main_stream = futures::stream::iter(kept_idx)
.map(Ok)
.chain(query_stream)
.map_ok(|idx| match uid {
true => (idx.uid, idx.modseq),
_ => (idx.i, idx.modseq),
});
// 8. Do the actual computation
let internal_result: Vec<_> = main_stream.try_collect().await?;
let (selection, modseqs): (Vec<_>, Vec<_>) = internal_result.into_iter().unzip();
// 9. Aggregate the maximum modseq value
let maybe_modseq = match crit.is_modseq() {
true => modseqs.into_iter().max(),
_ => None,
};
// 10. Return the final result
Ok((
vec![Body::Data(Data::Search(selection, maybe_modseq))],
maybe_modseq.is_some(),
))
}
// ----
/// @FIXME index should be stored for longer than a single request
/// Instead they should be tied to the FrozenMailbox refresh
/// It's not trivial to refactor the code to do that, so we are doing
/// some useless computation for now...
fn index<'a>(&'a self) -> Result<Index<'a>> {
Index::new(&self.internal.snapshot)
}
/// Produce an OK [UIDVALIDITY _] message corresponding to `known_state`
fn uidvalidity_status(&self) -> Result<Body<'static>> {
let uid_validity = Status::ok(
None,
Some(Code::UidValidity(self.uidvalidity())),
"UIDs valid",
)
.map_err(Error::msg)?;
Ok(Body::Status(uid_validity))
}
pub(crate) fn uidvalidity(&self) -> ImapUidvalidity {
self.internal.snapshot.uidvalidity
}
/// Produce an OK [UIDNEXT _] message corresponding to `known_state`
fn uidnext_status(&self) -> Result<Body<'static>> {
let next_uid = Status::ok(
None,
Some(Code::UidNext(self.uidnext())),
"Predict next UID",
)
.map_err(Error::msg)?;
Ok(Body::Status(next_uid))
}
pub(crate) fn uidnext(&self) -> ImapUid {
self.internal.snapshot.uidnext
}
pub(crate) fn highestmodseq_status(&self) -> Result<Body<'static>> {
Ok(Body::Status(Status::ok(
None,
Some(Code::Other(CodeOther::unvalidated(
format!("HIGHESTMODSEQ {}", self.highestmodseq()).into_bytes(),
))),
"Highest",
)?))
}
pub(crate) fn highestmodseq(&self) -> ModSeq {
self.internal.snapshot.highestmodseq
}
/// Produce an EXISTS message corresponding to the number of mails
/// in `known_state`
fn exists_status(&self) -> Result<Body<'static>> {
Ok(Body::Data(Data::Exists(self.exists()?)))
}
pub(crate) fn exists(&self) -> Result<u32> {
Ok(u32::try_from(self.internal.snapshot.idx_by_uid.len())?)
}
/// Produce a RECENT message corresponding to the number of
/// recent mails in `known_state`
fn recent_status(&self) -> Result<Body<'static>> {
Ok(Body::Data(Data::Recent(self.recent()?)))
}
#[allow(dead_code)]
fn unseen_first_status(&self) -> Result<Option<Body<'static>>> {
Ok(self
.unseen_first()?
.map(|unseen_id| {
Status::ok(None, Some(Code::Unseen(unseen_id)), "First unseen.").map(Body::Status)
})
.transpose()?)
}
#[allow(dead_code)]
fn unseen_first(&self) -> Result<Option<NonZeroU32>> {
Ok(self
.internal
.snapshot
.table
.values()
.enumerate()
.find(|(_i, (_imap_uid, _modseq, flags))| !flags.contains(&"\\Seen".to_string()))
.map(|(i, _)| NonZeroU32::try_from(i as u32 + 1))
.transpose()?)
}
pub(crate) fn recent(&self) -> Result<u32> {
let recent = self
.internal
.snapshot
.idx_by_flag
.get(&"\\Recent".to_string())
.map(|os| os.len())
.unwrap_or(0);
Ok(u32::try_from(recent)?)
}
/// Produce a FLAGS and a PERMANENTFLAGS message that indicates
/// the flags that are in `known_state` + default flags
fn flags_status(&self) -> Result<Vec<Body<'static>>> {
let mut body = vec![];
// 1. Collecting all the possible flags in the mailbox
// 1.a Fetch them from our index
let mut known_flags: Vec<Flag> = self
.internal
.snapshot
.idx_by_flag
.flags()
.filter_map(|f| match flags::from_str(f) {
Some(FlagFetch::Flag(fl)) => Some(fl),
_ => None,
})
.collect();
// 1.b Merge it with our default flags list
for f in DEFAULT_FLAGS.iter() {
if !known_flags.contains(f) {
known_flags.push(f.clone());
}
}
// 1.c Create the IMAP message
body.push(Body::Data(Data::Flags(known_flags.clone())));
// 2. Returning flags that are persisted
// 2.a Always advertise our default flags
let mut permanent = DEFAULT_FLAGS
.iter()
.map(|f| FlagPerm::Flag(f.clone()))
.collect::<Vec<_>>();
// 2.b Say that we support any keyword flag
permanent.push(FlagPerm::Asterisk);
// 2.c Create the IMAP message
let permanent_flags = Status::ok(
None,
Some(Code::PermanentFlags(permanent)),
"Flags permitted",
)
.map_err(Error::msg)?;
body.push(Body::Status(permanent_flags));
// Done!
Ok(body)
}
pub(crate) fn unseen_count(&self) -> usize {
let total = self.internal.snapshot.table.len();
let seen = self
.internal
.snapshot
.idx_by_flag
.get(&Flag::Seen.to_string())
.map(|x| x.len())
.unwrap_or(0);
total - seen
}
}
#[cfg(test)]
mod tests {
use super::*;
use imap_codec::encode::Encoder;
use imap_codec::imap_types::core::Vec1;
use imap_codec::imap_types::fetch::Section;
use imap_codec::imap_types::fetch::{MacroOrMessageDataItemNames, MessageDataItemName};
use imap_codec::imap_types::response::Response;
use imap_codec::ResponseCodec;
use std::fs;
use aero_user::cryptoblob;
use aero_collections::mail::mailbox::MailMeta;
use aero_collections::mail::query::QueryResult;
use aero_collections::unique_ident;
use crate::imap::index::MailIndex;
use crate::imap::mime_view;
#[test]
fn mailview_body_ext() -> Result<()> {
let ap = AttributesProxy::new(
&MacroOrMessageDataItemNames::MessageDataItemNames(vec![
MessageDataItemName::BodyExt {
section: Some(Section::Header(None)),
partial: None,
peek: false,
},
]),
&[],
false,
);
let key = cryptoblob::gen_key();
let meta = MailMeta {
internaldate: 0u64,
headers: vec![],
message_key: key,
rfc822_size: 8usize,
};
let index_entry = (NonZeroU32::MIN, NonZeroU64::MIN, vec![]);
let mail_in_idx = MailIndex {
i: NonZeroU32::MIN,
uid: index_entry.0,
modseq: index_entry.1,
uuid: unique_ident::gen_ident(),
flags: &index_entry.2,
};
let rfc822 = b"Subject: hello\r\nFrom: a@a.a\r\nTo: b@b.b\r\nDate: Thu, 12 Oct 2023 08:45:28 +0000\r\n\r\nhello world";
let qr = QueryResult::FullResult {
uuid: mail_in_idx.uuid.clone(),
metadata: meta,
content: rfc822.to_vec(),
};
let mv = MailView::new(&qr, &mail_in_idx)?;
let (res_body, _seen) = mv.filter(&ap)?;
let fattr = match res_body {
Body::Data(Data::Fetch {
seq: _seq,
items: attr,
}) => Ok(attr),
_ => Err(anyhow!("Not a fetch body")),
}?;
assert_eq!(fattr.as_ref().len(), 1);
let (sec, _orig, _data) = match &fattr.as_ref()[0] {
MessageDataItem::BodyExt {
section,
origin,
data,
} => Ok((section, origin, data)),
_ => Err(anyhow!("not a body ext message attribute")),
}?;
assert_eq!(sec.as_ref().unwrap(), &Section::Header(None));
Ok(())
}
/// Future automated test. We use lossy utf8 conversion + lowercase everything,
/// so this test might allow invalid results. But at least it allows us to quickly test a
/// large variety of emails.
/// Keep in mind that special cases must still be tested manually!
#[test]
fn fetch_body() -> Result<()> {
let prefixes = [
/* *** MY OWN DATASET *** */
"tests/emails/dxflrs/0001_simple",
"tests/emails/dxflrs/0002_mime",
"tests/emails/dxflrs/0003_mime-in-mime",
"tests/emails/dxflrs/0004_msg-in-msg",
// eml_codec do not support continuation for the moment
//"tests/emails/dxflrs/0005_mail-parser-readme",
"tests/emails/dxflrs/0006_single-mime",
"tests/emails/dxflrs/0007_raw_msg_in_rfc822",
/* *** (STRANGE) RFC *** */
//"tests/emails/rfc/000", // must return text/enriched, we return text/plain
//"tests/emails/rfc/001", // does not recognize the multipart/external-body, breaks the
// whole parsing
//"tests/emails/rfc/002", // wrong date in email
//"tests/emails/rfc/003", // dovecot fixes \r\r: the bytes number is wrong + text/enriched
/* *** THIRD PARTY *** */
//"tests/emails/thirdparty/000", // dovecot fixes \r\r: the bytes number is wrong
//"tests/emails/thirdparty/001", // same
"tests/emails/thirdparty/002", // same
/* *** LEGACY *** */
//"tests/emails/legacy/000", // same issue with \r\r
];
for pref in prefixes.iter() {
println!("{}", pref);
let txt = fs::read(format!("../{}.eml", pref))?;
let oracle = fs::read(format!("../{}.dovecot.body", pref))?;
let message = eml_codec::parse_message(&txt).unwrap().1;
let test_repr = Response::Data(Data::Fetch {
seq: NonZeroU32::new(1).unwrap(),
items: Vec1::from(MessageDataItem::Body(mime_view::bodystructure(
&message.child,
false,
)?)),
});
let test_bytes = ResponseCodec::new().encode(&test_repr).dump();
let test_str = String::from_utf8_lossy(&test_bytes).to_lowercase();
let oracle_str =
format!("* 1 FETCH {}\r\n", String::from_utf8_lossy(&oracle)).to_lowercase();
println!("aerogramme: {}\n\ndovecot: {}\n\n", test_str, oracle_str);
//println!("\n\n {} \n\n", String::from_utf8_lossy(&resp));
assert_eq!(test_str, oracle_str);
}
Ok(())
}
}
|
