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* imap: only call UidSort with sort criteriaKoni Marti2023-06-251-2/+3
| | | | | | | | | | | | | Only call UidSort with some sort criteria. If we call it without, some imap severs report it as an error. For example, Fastmail imap with the sort config in aerc.conf commented out reports: "[Fastmail] unexpected error: Missing Sort criteria" and cannot display the messages. Fixes: https://lists.sr.ht/~rjarry/aerc-devel/%3C5955665f-4d1a-4295-86bd-d1a5eabd0d6d%40milic.suse.cz%3E Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* imap: implement cancellation of opening dir and listing contentsTim Culverhouse2023-06-201-39/+72
| | | | | | | | | | | Check for a cancelled context when opening a directory, and before+after fetching directory contents/threads. Clean up the nesting of fetchDirectoryContents by using what we already know about server capabilities and using a switch statement. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Tested-by: Bence Ferdinandy <bence@ferdinandy.com> Acked-by: Robin Jarry <robin@jarry.cc>
* imap: use named loggerRobin Jarry2023-06-121-8/+7
| | | | | | | | Use the worker's logging functions to have all imap related messages prefixed by the account name. Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Inwit <inwit@sindominio.net>
* logging: rename package to logRobin Jarry2022-12-021-8/+8
| | | | | | | | | | Use the same name than the builtin "log" package. That way, we do not risk logging in the wrong place. Suggested-by: Tim Culverhouse <tim@timculverhouse.com> Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Bence Ferdinandy <bence@ferdinandy.com> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* logging: homogenize levelsRobin Jarry2022-12-021-5/+5
| | | | | | | | | | | | | | | | | | The main goal is to ensure that by default, the log file (if configured) does not grow out of proportions. Most of the logging messages in aerc are actually for debugging and/or trace purposes. Define clear rules for logging levels. Enforce these rules everywhere. After this patch, here is what the log file looks like after starting up with a single account: INFO 2022/11/24 20:26:16.147164 aerc.go:176: Starting up version 0.13.0-100-g683981479c60 (go1.18.7 amd64 linux) INFO 2022/11/24 20:26:17.546448 account.go:254: [work] connected. Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Bence Ferdinandy <bence@ferdinandy.com> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* imap: add support for ORDEREDSUBJECT threading algorithmjp392022-11-091-1/+1
| | | | | | | | | | | | The imap worker incorrectly tries to use the REFERENCES threading algorithm by default although some servers only support the ORDEREDSUBJECT threading algorithm. Use whichever threading algorithm is advertised as supported by the server, buf prefer REFERENCES if available. Signed-off-by: jp39 <jp39@gmx.com> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* lint: ensure errors are at least logged (errcheck)Moritz Poldrack2022-08-041-1/+1
| | | | | Signed-off-by: Moritz Poldrack <moritz@poldrack.dev> Acked-by: Robin Jarry <robin@jarry.cc>
* seqmap: refactor seqmap to use slice instead of mapTim Culverhouse2022-08-031-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The imap worker's seqmap is represented as a map of sequence number to UID. This presents a problem when expunging group of messages from the mailbox: each individual expunge decrements the sequence numbers by 1 (for every sequence number greater than the expunged). This requires a looping around the map to update the keys. The use of a map also requires that both the sequence number and the UID of a message be known in order to insert it into the map. This is only discovered by fetching individual message body parts (flags, headers, etc), leaving the seqmap to be empty until we have fetched information about each message. In certain instances (if a mailbox has recently been loaded), all information is loaded in memory and no new information is fetched - leaving the seqmap empty and the UI out of sync with the worker. Refactor the seqmap as a slice, so that any expunge automatically decrements the rest of the sequences. Use the results of FetchDirectoryContents or FetchDirectoryThreaded to initialize the seqmap with all discovered UIDs. Sort the UIDs in ascending order: IMAP specification requires that sequence numbers start at 1 increase in order of ascending UID. Add individual messages to the map if they come via a MessageUpdate and have a sequence number larger than our slice. Update seqmap tests with new logic. Reference: https://datatracker.ietf.org/doc/html/rfc3501#section-2.3.1.2 Fixes: https://todo.sr.ht/~rjarry/aerc/69 Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* lint: apply new formatting rulesMoritz Poldrack2022-08-011-4/+6
| | | | | | | Run `make fmt`. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* sort: show warning when sort is not supportedKoni Marti2022-07-261-0/+2
| | | | | | | | | | Use the capabilities returned by the backend to check whether sort is implemented when the user tries to use the sort command. Print a warning to the log when a sort request is silently dropped by the backend. Suggested-by: |cos| Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* logging: use level-based logger functionsRobin Jarry2022-07-231-6/+7
| | | | | | | | | | | | Do not pass logger objects around anymore. Shuffle some messages to make them consistent with the new logging API. Avoid using %v when a more specific verb exists for the argument types. The loggers are completely disabled (i.e. Sprintf is not even called) by default. They are only enabled when redirecting stdout to a file. Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* threading: enable filtering of server-side threadsTim Culverhouse2022-07-101-9/+16
| | | | | | | | | | | | | | This patch enables the filtering of a threaded view which uses server-built threads. Filtering is done server-side, in order to preserve the use of server-built threads. In adding this feature, the filtering of notmuch folders was brought up to feature parity with the other workers. The filters function the same (ie: they can be stacked). The notmuch filters, however, still use notmuch syntax for the filtering. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* imap: fix data race on seqMap arrayRobin Jarry2022-06-241-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | There are concurrent threads that are accessing and modifying IMAPWorker.seqMap (the mapping of sequence numbers to message UIDs). This can lead to crashes when trying to add and remove a message ID. panic: runtime error: index out of range [391] with length 390 goroutine 1834 [running]: git.sr.ht/~rjarry/aerc/logging.PanicHandler() logging/panic-logger.go:47 +0x6de panic({0xa41760, 0xc0019b3290}) /usr/lib/golang/src/runtime/panic.go:838 +0x207 git.sr.ht/~rjarry/aerc/worker/imap.(*IMAPWorker).handleFetchMessages.func1() worker/imap/fetch.go:214 +0x185 created by git.sr.ht/~rjarry/aerc/worker/imap.(*IMAPWorker).handleFetchMessages worker/imap/fetch.go:209 +0x12b Use a map which makes more sense than a simple array for random access operations. Also, it allows better typing for the key values. Protect the map with a mutex. Add internal API to access the map. Add basic unit tests to ensure that concurrent access works. Fixes: https://todo.sr.ht/~rjarry/aerc/49 Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* imap: add option to cache headersTim Culverhouse2022-06-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add option to cache headers for imap accounts. Cache db is located at $XDG_CACHE_DIR/aerc/{account name}. The cache is cleaned of stale entries when aerc is first opened. Two new account level configuration options are introduced: * cache-headers (Default: false) * cache-max-age (Default: 30 days (720 hours)) The change in worker/imap/open.go is to set the selected directory. This is required to access the UIDVALIDITY field, which is used in combination with the message ID to form the key for use in the cache db. The key structure is: "header.{UIDVALIDITY}.{UID}" Where reasonable, cache does not stop aerc from running. In general, if there is an error in the cache, aerc should continue working as usual. Errors are either displayed to the user or logged. All messages are stored without flags, and when retrieved have the flags set to SEEN. This is to prevent UI flashes. A new method to FetchMessageFlags is introduced to update flags of cached headers. This is done asynchronously, and the user will see their messages appear and then any flags updated. The message will initially show as SEEN, but will update to unread. I considered updating the cache with the last-known flag state, however it seems prudent to spare the R/W cycle and assume that - eventually - all messages will end up read, and if it isn't the update will occur rather quickly. Note that leveldb puts a lock on the database, preventing multiple instances of aerc from accessing the cache at the same time. Much of this work is based on previous efforts by Vladimír Magyar. Implements: https://todo.sr.ht/~rjarry/aerc/2 Thanks: Vladimír Magyar <vladimir@mgyar.me> Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Tested-by: inwit <inwit@sindominio.net> Reviewed-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* go vet: composite literal uses unkeyed fieldsMoritz Poldrack2022-03-181-4/+4
| | | | | | | | This commit fixes all occurrences of the abovementioned lint-error in the codebase. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* messages: allow displaying email threadsy0ast2021-11-131-0/+63
| | | | | | | | | | | | | Display threads in the message list. For now, only supported by the notmuch backend and on IMAP when the server supports the THREAD extension. Setting threading-enable=true is global and will cause the message list to be empty with maildir:// accounts. Co-authored-by: Kevin Kuehler <keur@xcf.berkeley.edu> Co-authored-by: Reto Brunner <reto@labrat.space> Signed-off-by: Robin Jarry <robin@jarry.cc>
* go.mod: change base git urlRobin Jarry2021-11-051-1/+1
| | | | | | | I'm not sure what are the implications but it seems required. Link: https://github.com/golang/go/issues/20883 Signed-off-by: Robin Jarry <robin@jarry.cc>
* imap: use builtin idle supportRobin Jarry2021-11-021-3/+0
| | | | | | | go-imap supports IDLE since 1.2.0. Remove dependency to go-imap-idle. Link: https://github.com/emersion/go-imap/commit/ac3f8e195ef1b6d Signed-off-by: Robin Jarry <robin@jarry.cc>
* imap: add sort supportReto Brunner2020-10-111-2/+47
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* worker/imap: Fix seqMap race conditionKevin Kuehler2019-11-101-1/+3
| | | | | | | | | | When deleting a message, sometimes FetchDirectoryContents will fire. FetchDirectoryContents will return a smaller set of UIDs since messages have been deleted. This operation races with fetching from the seqMap in client.ExpungeUpdate. Only recreate the seqMap if it can grow so that messages will continue to be expunged. Signed-off-by: Kevin Kuehler <keur@xcf.berkeley.edu>
* s/aerc2/aerc/gDrew DeVault2019-05-171-1/+1
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* Handle incoming emails gracefullyDrew DeVault2019-05-131-0/+3
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* worker/imap: use the IMAP connection from a single goroutineSimon Ser2019-04-291-32/+29
| | | | | | | | | | | | | Unfortunately, the IMAP protocol hasn't been designed to be used from multiple goroutines at the same time. For instance, if you fetch twice the same message from two different goroutines, it's not possible to tell whether the response is for one receiver or the other. For this reason, go-imap clients aren't safe to use from multiple goroutines. This commit changes the IMAP workers to be synchronous again (a command is executed only after the previous one has completed). To use IMAP from different threads, popular clients (e.g. Thunderbird) typically open multiple connections.
* Implement :delete-messageDrew DeVault2019-03-201-0/+1
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* Implement message store side of message fetchingDrew DeVault2019-03-141-7/+2
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* Fetch valid UIDs from server after opening dirDrew DeVault2019-03-101-0/+34
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* Issue IMAP SELECT commandDrew DeVault2019-01-131-0/+20