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* idler: fix data race for access to idleing and waitingTim Culverhouse2022-09-261-3/+15
| | | | | | | Protect access to fields idleing and waiting via a mutex. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* checkmail: protect access to acct.checkingmailTim Culverhouse2022-09-261-0/+6
| | | | | | | | | A data race exists between the timer goroutine and the main goroutine for checking / setting the status of acct.checkingmail. Protect access to this value with a mutex Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* worker: lock access to callback mapsTim Culverhouse2022-09-261-0/+11
| | | | | | | | | Worker callbacks are inherently set and called from different goroutines. Protect access to all callback maps with a mutex. Signed-off-by: Moritz Poldrack <moritz@poldrack.dev> Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* dirlist: avoid race from accessing ui config in Select debounceTim Culverhouse2022-09-261-1/+2
| | | | | Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* gitignore: ignore race.log.*Tim Culverhouse2022-09-261-0/+1
| | | | | | | Running `make dev` creates race.log.* files. Ignore these by default. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* terminal: prevent draw loop when unfocusedTim Culverhouse2022-09-261-0/+3
| | | | | | | | | | If a :term is open and aerc is focused on another tab, it is possible for the :term to redraw itself to the screen. Only allow terminal to redraw itself when it is focused. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* terminal: bump tcell-term versionTim Culverhouse2022-09-252-3/+3
| | | | | | | | Bump tcell-term version to latest commit. Intention is to release tcell-term v0.2.0 just before aerc 0.13.0. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* backends: send MessageInfoError on header fetching errorTim Culverhouse2022-09-255-8/+20
| | | | | | | | | | | | | | | | | | | | | When an error is encountered fetching a header, the backends respond with a type.Error worker message. On receipt of this message, the UI deletes all pending headers. The headers are all requested again as they remain on the screen, resulting in an infinite request loop - and an infinite logging loop. The user only ever sees the spinner unless they check the logs. A previous commit intended to fix this, however it introduced a regression where any message that was part of the fetch request would also be marked as erroneous. This commit is reverted with commit 2aad2fea7d36 ("msgstore: revert 9fdc7acf5b48"). Send an erroneous message info message from the backend when an error is encountered for a specific UID. Fixes: 01f80721e283 ("msgstore: post MessageInfo on erroneous fetch") Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* msgstore: revert 9fdc7acf5b48 "post messageInfo on erroneous fetch"Tim Culverhouse2022-09-251-13/+1
| | | | | | | | | | Commit 9fdc7acf5b48 ("cache: fetch flags from UI") introduced a regression where all messages were marked as erroneous if a single one in the fetch request had an error. Reported-by: Jose Lombera <jose@lombera.dev> Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* charset: handle unknown charsets more user-friendlyKoni Marti2022-09-256-12/+25
| | | | | | | | | Do not throw an error when the charset is unknown; the message entity can still be read, but log the error instead. Reported-by: falsifian Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* config: add default-save-path in default aerc.confRobin Jarry2022-09-251-0/+7
| | | | | | | | This setting has been around for ages but not in the default aerc.conf file. Add it to make it more visible to new users. Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* config: remove default values for this-*-time-formatRobin Jarry2022-09-253-12/+12
| | | | | | | | | | | | | | | Having a default value is confusing because to disable the dynamic time format, the users need to explicitly configure these settings to the empty string. Do not set default values for these settings when they are unset in the configuration. Comment the default config file values to serve as examples. Fixes: aae29324fdf5 ("config: fix default time format values") Reported-by: Nicolai Dagestad <nicolai@dagestad.fr> Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* cache: fetch flags from UITim Culverhouse2022-09-203-11/+29
| | | | | | | | | | | | | | | When cached headers are fetched, an action is posted back to the Worker to immediately fetch the flags for the message from the server (we can't know the flags state, therefore it's not cached). When scrolling, a lag occurs when loading cached headers because the n+1 message has to wait for the flag request to return before the cached headers are retrieved. Collect the message UIDs in the UI that need flags, and fetch them based off a debounce timer in a single request. Post the action from the UI to eliminate an (ugly) go routine in the worker. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* grid: protect calls to cell.ContentTim Culverhouse2022-09-201-2/+6
| | | | | | | | | Many panics occur from calling Draw on a nil widget, stemming from the grid ui element. Protect the calls to Draw from within grid to prevent this method of panic. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* grid: remove unused method ChildrenTim Culverhouse2022-09-203-19/+0
| | | | | | | | | | | The grid method Children returns the children of a grid, and is never used. The function is reimplemented in both aerc.go and account.go, also never called. Remove these unused methods. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* dirlist: don't invalidate on spinner.InvalidateTim Culverhouse2022-09-201-3/+0
| | | | | | | | The dirlist is invalidated explicitly after the spinner is stopped. For simplicitly, don't invalidate on spinner.Invalidate. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* switch: update status lineKoni Marti2022-09-201-1/+5
| | | | | | | | | Update status line when switching accounts in the composer. Fixes: 371c1a ("commands: add switch-account command for composer") Reported-by: Bence Ferdinandy <bence@ferdinandy.com> Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* switch: add -n and -p flags for relative switchRobin Jarry2022-09-205-8/+78
| | | | | | | | | Allow switching to next or previous account with switch-account -n and switch-account -p, respectively. By default, these are bound to Alt-n and Alt-p. Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Koni Marti <koni.marti@gmail.com>
* mk: make it obvious that GOFLAGS change cause a rebuildRobin Jarry2022-09-201-0/+1
| | | | | | We had a few issues with that for downstream distros recently. Signed-off-by: Robin Jarry <robin@jarry.cc>
* Revert "worker: prevent deadlock by flooding worker.Messages channel"Moritz Poldrack2022-09-201-4/+1
| | | | | | | | | | This reverts commit 74735711595c3f0dc29177f767b2c91beef19617. The commit has introduced a regression that lead to the pager not being filled with content, thereby making reading mails impossible. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* changelog: add missing entryRobin Jarry2022-09-201-0/+1
| | | | Signed-off-by: Robin Jarry <robin@jarry.cc>
* msgstore: post MessageInfo on erroneous fetchTim Culverhouse2022-09-202-1/+17
| | | | | | | | | | | | | | When errors occur during a fetch header request, the requested headers are deleted from pending and no information is given to the UI. Spinners keep spinning, and ultimately as the view is refreshed, the headers are fetched again. This can lead to infinite loops, and extremely long logs. Update the store with a MessageInfo message when an error is received. Have the UI display that the header couldn't be fetched in the message list. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* worker: prevent deadlock by flooding worker.Messages channelTim Culverhouse2022-09-201-1/+4
| | | | | | | | | | | Send to worker.Messages in goroutine to prevent deadlocks: the UI can fill the worker.Actions channel. The worker can generate more than one Message per action, and if it generates enough to fill the worker.Messages channel from a single message while the worker.Actions channel is full, a deadlock occurs. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* imap: prevent deadlock from posting actions to selfTim Culverhouse2022-09-203-3/+10
| | | | | | | | | | | | | | | | The IMAP worker has a few methods that post a new Action to itself. This can create a deadlock when the worker.Actions channel is full: The worker can't accept a new Action because it's trying to post an action. This is most noticeable when cached headers are enabled and the message list is scrolled fast. Use a goroutine to post actions to the worker when posting from within the worker. Fixes: https://todo.sr.ht/~rjarry/aerc/45 Fixes: 7aa71d334b27 ("imap: add option to cache headers") Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* binds: allow typing ? in subject headerRobin Jarry2022-09-201-0/+3
| | | | | | | | | | | | | | | Since commit 5c8a749cfa97 ("binds: display active keybinds in a dialog box") the ? key is bound to `:help keys` in the global section which applies to all binding contexts. Pressing ? while editing any email headers in the compose window (when the editor is not selected) displays the active bindings menu. Add $noinherit=true in the [compose] context to allow typing any character. Copy the bindings for next-tab and prev-tab so that users can still change tabs while editing headers. Cc: Akspecs <akspecs@gmail.com> Signed-off-by: Robin Jarry <robin@jarry.cc>
* commands: add switch-account command for composerKoni Marti2022-09-192-0/+51
| | | | | | | | | | | | | | | Switch accounts when in the composer mode. When switching accounts, the From header, the crypto status and the address completer will be updated. Accounts can be switched with :switch-account <account-name>. The completions for the switch-account command will list the available accounts. If switch-account is run without arguments, the current account name with the correct usage is displayed. Fixes: https://todo.sr.ht/~rjarry/aerc/72 Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* composer: restructure to implement account switchingKoni Marti2022-09-192-30/+106
| | | | | | | | | Extract some functionality of the composer constructor into a account-specific setup function that can be used to implement account switching. Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* msgviewer: fix segfault when closing viewerRobin Jarry2022-09-191-1/+0
| | | | | | | | | | | | | | | | | | | There is a race between PartViewer.Cleanup and PartViewer.Draw. pv.term may be not nil in Draw and Cleanup() may set it to nil before pv.term.Draw() is called, causing an invalid memory access: [signal SIGSEGV: segmentation violation code=0x1 addr=0x29 pc=0x9413b8] git.sr.ht/~rjarry/aerc/widgets.(*Terminal).Draw(0x0?, 0x0?) git.sr.ht/~rjarry/aerc/widgets/terminal.go:97 +0x18 git.sr.ht/~rjarry/aerc/widgets.(*PartViewer).Draw(0xc00012a540, 0xc0026ea690) git.sr.ht/~rjarry/aerc/widgets/msgviewer.go:862 +0x2fd There is no need to reset term to nil. Fixes: 77f69501d648 ("msgviewer: properly close embedded terminal") Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* terminal: don't invalidate on EventWidgetContentTim Culverhouse2022-09-191-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The terminal widget uses it's own internal event handler to redraw itself for improved performance. The event handler draws, updates the screen, and invalidates. The last invalidate is redundant: Invalidating has the result of telling aerc to redraw the screen. A race condition can occur where an event is emitted from the terminal and the terminal is closed before the event is handled. This results in handling the event after the terminal is closed, and a panic: panic: Attempted to invalidate unknown cell goroutine 54685 [running]: git.sr.ht/~rjarry/aerc/lib/ui.(*Grid).cellInvalidated(0xc00b0a34a0, {0xbb8f10?, 0xc00360cd80}) git.sr.ht/~rjarry/aerc/lib/ui/grid.go:287 +0x175 git.sr.ht/~rjarry/aerc/lib/ui.(*Invalidatable).DoInvalidate(0xc0002e7900?, {0xbb8f10?, 0xc00360cd80?}) git.sr.ht/~rjarry/aerc/lib/ui/invalidatable.go:22 +0x82 git.sr.ht/~rjarry/aerc/widgets.(*Terminal).invalidate(...) git.sr.ht/~rjarry/aerc/widgets/terminal.go:93 git.sr.ht/~rjarry/aerc/widgets.(*Terminal).HandleEvent(0xc00360cd80, {0xbb4ba0?, 0xc006022690?}) git.sr.ht/~rjarry/aerc/widgets/terminal.go:192 +0xd2 github.com/gdamore/tcell/v2/views.(*WidgetWatchers).PostEvent(...) github.com/gdamore/tcell/v2@v2.5.3/views/widget.go:113 github.com/gdamore/tcell/v2/views.(*WidgetWatchers).PostEventWidgetContent(0xc0001b9360, {0xbbc950?, 0xc0001b9320}) github.com/gdamore/tcell/v2@v2.5.3/views/widget.go:123 +0x12b git.sr.ht/~rockorager/tcell-term.(*Terminal).run.func1() git.sr.ht/~rockorager/tcell-term@v0.1.0/terminal.go:117 +0x9d created by git.sr.ht/~rockorager/tcell-term.(*Terminal).run git.sr.ht/~rockorager/tcell-term@v0.1.0/terminal.go:104 +0x110 Don't invalidate on EventWidgetContent. The terminal already handles drawing and updating the tcell Screen internally. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* statusline-format: add %p placeholder for current pathBence Ferdinandy2022-09-193-0/+14
| | | | | | | | | | Allow showing the current working directory in the statusline via [statusline] render-format=%p, which is useful if the user changes directories often. Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com> Tested-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* terminal: protect calls to terminal methods throughout aercTim Culverhouse2022-09-192-1/+6
| | | | | | | | | | | | | | A race condition can occur when a PartViewer is closing and also working on a draw. The closing process sets the terminal to nil, which will create a panic. This can be tested in development by setting the timer in the main aerc tick loop to something very low (1 ms for example). One other unprotected call to terminal exists in the composer widget. Check that the terminal is not nil before calling methods on it. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* doc: document IMAP idle optionsTim Culverhouse2022-09-151-0/+12
| | | | | | | Add idle-debounce and idle-timeout to aerc-imap manpage. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* terminal: improve mouse supportTim Culverhouse2022-09-153-12/+12
| | | | | | | | Improve terminal mouse support by forwarding mouse events to the terminal widget. Clicking and dragging are supported. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* msgviewer: properly close embedded terminalRobin Jarry2022-09-151-6/+3
| | | | | | | | | | | | | | | | | | | The terminal widget already handles most boring stuff: unwatch terminal events, kill the underlying process, wait for it to exit, etc. Call the Close() method and be done with it. This avoids issues where the embedded terminal widget is destroyed but the pager process does not know about it and dies in agony, writing over aerc's UI: Vim: Caught deadly signal HUP Also, it may avoid leaving child processes as zombies without giving them a proper burial. Reported-by: skejg Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Signed-off-by: Robin Jarry <robin@jarry.cc>
* terminal: check for context before calling it's methodsTim Culverhouse2022-09-151-3/+7
| | | | | | | | The terminal widget internally uses several context methods. Check that context is not nil before calling any method to prevent panics. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* term: add bracketed paste supportTim Culverhouse2022-09-143-0/+24
| | | | | | | | Allow forwarding paste events to embedded applications. When a bracketed paste is in progress, do not process any command bindings. Signed-off-by: Robin Jarry <robin@jarry.cc> Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
* term: replace go-libvterm with tcell-termTim Culverhouse2022-09-145-383/+84
| | | | | | | | | | | | | | | | Replace go-libvterm package with tcell-term. go-libvterm provides the embedded terminal for aerc. It uses a statically linked C library, requiring CGO. tcell-term is written in pure go and is written to be portable with tcell applications by implementing the tcell Widget interface. This allows the terminal to take a view (which aerc already supplies) and draw directly to it, as well as issue tcell Events to a Watcher. Enable setting cursor shapes in embedded terminals. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Signed-off-by: Robin Jarry <robin@jarry.cc>
* ui: export context.viewport, screen.show, add SetCursorStyleTim Culverhouse2022-09-143-10/+29
| | | | | | | | | | Export context.viewport for use in implementing tcell-term. Bump tcell version to enable SetCursorStyle feature. Add this function to the ui for future use with tcell-term. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* ui: cleanup internals and apiRobin Jarry2022-09-143-27/+14
| | | | | | | | | | | | | | | | Now that tcell events are handled in a goroutine, no need for a channel to buffer them. Rename ui.Tick() to ui.Render() and ui.Run() to ui.ProcessEvents() to better reflect what these functions do. Move screen.PollEvent() into ui.ProcessEvents(). Register the panic handler in ui.ProcessEvents(). Remove aerc.ui.Tick() from DecryptKeys(). What the hell was that? Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Tim Culverhouse <tim@timculverhouse.com>
* go mod tidyRobin Jarry2022-09-141-39/+48
| | | | Signed-off-by: Robin Jarry <robin@jarry.cc>
* lint: update linter versionMoritz Poldrack2022-09-142-2/+5
| | | | | Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* lint: warn about known security issuesMoritz Poldrack2022-09-141-0/+1
| | | | | Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* history: store command history in a fileMoritz Poldrack2022-09-142-0/+78
| | | | | | | | | | | | | | | Losing your progress in case of a crash, or when accidentally closing aerc is annoying and costs time. This can be drastically reduced by keeping a persistent history. Write commands to XDG_CACHE_DIR/aerc/histfile when they are run and load them when needed. If another instance of aerc is already writing the file, fall back to the current model, where the history is kept in memory. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* history: don't store duplicate entriesMoritz Poldrack2022-09-142-1/+5
| | | | | | Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* config: add option to hide timezone in sent emailsMoritz Poldrack2022-09-144-1/+12
| | | | | | | | | | | | Some people are worried that they might leak their timezone and wish to send their mails with the Date header in UTC. For this a new key is added to the account sections to enforce sending in UTC instead of the system's timezone. Suggested-by: "Ricardo Correia" <aerc-lists.sr.ht@wizy.org> Thanks: to Ricardo for checking and correcting my incorrect assertions Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* socket: use existing socket if it is connectedMoritz Poldrack2022-09-141-2/+4
| | | | | | | | | | | When using ephemeral aerc sessions – for example while writing patches for it – the mailto: functionality breaks if the socket is removed. Try to send a ping (an empty message) to the socket and remove it, if the send fails or no noop reply is received. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* ui: process tcell events in a separate go routine from renderingTim Culverhouse2022-09-132-17/+17
| | | | | | | | | | | | | The UI runs off a 16 ms ticker. If no render is required, and no event is seen, aerc waits 16 ms before checking for new events or render requests. This severely limits handling of events from tcell, and is particularly noticeable on pasting of large quantities of text. Process tcell events in a separate go routine from the render loop. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Moritz Poldrack <moritz@poldrack.dev> Acked-by: Robin Jarry <robin@jarry.cc>
* open-link: make URL parsing more lenientMoritz Poldrack2022-09-133-34/+61
| | | | | | | | | | | | | | | | | | | | | | | | URLs are extremely loosely defined and can take many shapes which may not be parsed at all if unusual characters like the exclamation mark are present. To ensure lists and odd use of spaces are not parsed as links some sanity-checks are in place: - the URL's schema must be at least two characters long - the URL's authority, path, and fragment must have a combined length of 8 characters or longer - the URL must not contain a whitespace character, >, ), or " - the URL may only contain a ] when followed by a different allowed character or at the end of the line (necessary for IPv6 authorities) The tests for this function now include links with an exclamation point and IPv6 addresses. The tests are given names to be easier identifiable. Link: https://www.iana.org/assignments/uri-schemes/uri-schemes.xhtml Reported-by: "Bence Ferdinandy" <bence@ferdinandy.com> Cc: "Koni Marti" <koni.marti@gmail.com> Fixes: e1d8bc4d17cb ("msgviewer: open http links from messages") Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* commands: add zoxide support via :zBence Ferdinandy2022-09-133-0/+90
| | | | | | | | | | | | zoxide is a command line utility, supported by many CLI programs. Enable zoxide support via the :z command which is a drop-in replacement for :cd (and calls ChangeDirectory in the background), but also manages adding paths to and querying from the zoxide database. The command is not registered if zoxide is not on $PATH. Link: https://github.com/ajeetdsouza/zoxide Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com> Acked-by: Robin Jarry <robin@jarry.cc>
* bindings: add alt modifierJohn Gebbie2022-09-133-1/+118
| | | | | | | Enables bindings like <A-left>. Signed-off-by: John Gebbie <me@johngebbie.com> Acked-by: Robin Jarry <robin@jarry.cc>
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