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add a webapi and webhooks for a simple http/json-based api

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for applications to compose/send messages, receive delivery feedback, and
maintain suppression lists.

this is an alternative to applications using a library to compose messages,
submitting those messages using smtp, and monitoring a mailbox with imap for
DSNs, which can be processed into the equivalent of suppression lists. but you
need to know about all these standards/protocols and find libraries. by using
the webapi & webhooks, you just need a http & json library.

unfortunately, there is no standard for these kinds of api, so mox has made up
yet another one...

matching incoming DSNs about deliveries to original outgoing messages requires
keeping history of "retired" messages (delivered from the queue, either
successfully or failed). this can be enabled per account. history is also
useful for debugging deliveries. we now also keep history of each delivery
attempt, accessible while still in the queue, and kept when a message is
retired. the queue webadmin pages now also have pagination, to show potentially
large history.

a queue of webhook calls is now managed too. failures are retried similar to
message deliveries. webhooks can also be saved to the retired list after
completing. also configurable per account.

messages can be sent with a "unique smtp mail from" address. this can only be
used if the domain is configured with a localpart catchall separator such as
"+". when enabled, a queued message gets assigned a random "fromid", which is
added after the separator when sending. when DSNs are returned, they can be
related to previously sent messages based on this fromid. in the future, we can
implement matching on the "envid" used in the smtp dsn extension, or on the
"message-id" of the message. using a fromid can be triggered by authenticating
with a login email address that is configured as enabling fromid.

suppression lists are automatically managed per account. if a delivery attempt
results in certain smtp errors, the destination address is added to the
suppression list. future messages queued for that recipient will immediately
fail without a delivery attempt. suppression lists protect your mail server
reputation.

submitted messages can carry "extra" data through the queue and webhooks for
outgoing deliveries. through webapi as a json object, through smtp submission
as message headers of the form "x-mox-extra-<key>: value".

to make it easy to test webapi/webhooks locally, the "localserve" mode actually
puts messages in the queue. when it's time to deliver, it still won't do a full
delivery attempt, but just delivers to the sender account. unless the recipient
address has a special form, simulating a failure to deliver.

admins now have more control over the queue. "hold rules" can be added to mark
newly queued messages as "on hold", pausing delivery. rules can be about
certain sender or recipient domains/addresses, or apply to all messages pausing
the entire queue. also useful for (local) testing.

new config options have been introduced. they are editable through the admin
and/or account web interfaces.

the webapi http endpoints are enabled for newly generated configs with the
quickstart, and in localserve. existing configurations must explicitly enable
the webapi in mox.conf.

gopherwatch.org was created to dogfood this code. it initially used just the
compose/smtpclient/imapclient mox packages to send messages and process
delivery feedback. it will get a config option to use the mox webapi/webhooks
instead. the gopherwatch code to use webapi/webhook is smaller and simpler, and
developing that shaped development of the mox webapi/webhooks.

for issue #31 by cuu508
This commit is contained in:
Mechiel Lukkien
2024-04-15 21:49:02 +02:00
parent 8bec5ef7d4
commit 09fcc49223
87 changed files with 15556 additions and 1306 deletions
Download Patch File Download Diff File Expand all files Collapse all files

250
doc.go
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@ -28,15 +28,27 @@ any parameters. Followed by the help and usage information for each command.
mox queue holdrules list
mox queue holdrules add [ruleflags]
mox queue holdrules remove ruleid
mox queue list [filterflags]
mox queue list [filtersortflags]
mox queue hold [filterflags]
mox queue unhold [filterflags]
mox queue schedule [filterflags] duration
mox queue schedule [filterflags] [-now] duration
mox queue transport [filterflags] transport
mox queue requiretls [filterflags] {yes | no | default}
mox queue fail [filterflags]
mox queue drop [filterflags]
mox queue dump id
mox queue retired list [filtersortflags]
mox queue retired print id
mox queue suppress list [-account account]
mox queue suppress add account address
mox queue suppress remove account address
mox queue suppress lookup [-account account] address
mox queue webhook list [filtersortflags]
mox queue webhook schedule [filterflags] duration
mox queue webhook cancel [filterflags]
mox queue webhook print id
mox queue webhook retired list [filtersortflags]
mox queue webhook retired print id
mox import maildir accountname mailboxname maildir
mox import mbox accountname mailboxname mbox
mox export maildir dst-dir account-path [mailbox]
@ -59,7 +71,7 @@ any parameters. Followed by the help and usage information for each command.
mox config describe-sendmail >/etc/moxsubmit.conf
mox config printservice >mox.service
mox config ensureacmehostprivatekeys
mox example [name]
mox config example [name]
mox checkupdate
mox cid cid
mox clientconfig domain
@ -88,6 +100,8 @@ any parameters. Followed by the help and usage information for each command.
mox tlsrpt lookup domain
mox tlsrpt parsereportmsg message ...
mox version
mox webapi [method [baseurl-with-credentials]
mox example [name]
mox bumpuidvalidity account [mailbox]
mox reassignuids account [mailboxid]
mox fixuidmeta account
@ -143,8 +157,8 @@ domains with HTTP/HTTPS, including with automatic TLS with ACME, is easily
configured through both configuration files and admin web interface, and can act
as a reverse proxy (and static file server for that matter), so you can forward
traffic to your existing backend applications. Look for "WebHandlers:" in the
output of "mox config describe-domains" and see the output of "mox example
webhandlers".
output of "mox config describe-domains" and see the output of
"mox config example webhandlers".
usage: mox quickstart [-skipdial] [-existing-webserver] [-hostname host] user@domain [user | uid]
-existing-webserver
@ -244,17 +258,23 @@ List matching messages in the delivery queue.
Prints the message with its ID, last and next delivery attempts, last error.
usage: mox queue list [filterflags]
usage: mox queue list [filtersortflags]
-account string
account that queued the message
-asc
sort ascending instead of descending (default)
-from string
from address of message, use "@example.com" to match all messages for a domain
-hold value
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-sort value
field to sort by, "nextattempt" (default) or "queued"
-submitted string
filter by time of submission relative to now, value must start with "<" (before now) or ">" (after now)
-to string
@ -278,6 +298,8 @@ otherwise handled by the admin.
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-submitted string
@ -303,6 +325,8 @@ delivery attempt. See the "queue schedule" command.
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-submitted string
@ -322,7 +346,7 @@ current time, instead of added to the current scheduled time.
Schedule immediate delivery with "mox queue schedule -now 0".
usage: mox queue schedule [filterflags] duration
usage: mox queue schedule [filterflags] [-now] duration
-account string
account that queued the message
-from string
@ -331,6 +355,8 @@ Schedule immediate delivery with "mox queue schedule -now 0".
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-now
@ -360,6 +386,8 @@ another mail server or with connections over a SOCKS proxy.
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-submitted string
@ -392,6 +420,8 @@ TLS.
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-submitted string
@ -418,6 +448,8 @@ contains a line saying the message was canceled by the admin.
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-submitted string
@ -443,6 +475,8 @@ the message, use "queue dump" before removing.
true or false, whether to match only messages that are (not) on hold
-ids value
comma-separated list of message IDs
-n int
number of messages to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-submitted string
@ -460,6 +494,180 @@ The message is printed to stdout and is in standard internet mail format.
usage: mox queue dump id
# mox queue retired list
List matching messages in the retired queue.
Prints messages with their ID and results.
usage: mox queue retired list [filtersortflags]
-account string
account that queued the message
-asc
sort ascending instead of descending (default)
-from string
from address of message, use "@example.com" to match all messages for a domain
-ids value
comma-separated list of retired message IDs
-lastactivity string
filter by time of last activity relative to now, value must start with "<" (before now) or ">" (after now)
-n int
number of messages to return
-result value
"success" or "failure" as result of delivery
-sort value
field to sort by, "lastactivity" (default) or "queued"
-submitted string
filter by time of submission relative to now, value must start with "<" (before now) or ">" (after now)
-to string
recipient address of message, use "@example.com" to match all messages for a domain
-transport value
transport to use for messages, empty string sets the default behaviour
# mox queue retired print
Print a message from the retired queue.
Prints a JSON representation of the information from the retired queue.
usage: mox queue retired print id
# mox queue suppress list
Print addresses in suppression list.
usage: mox queue suppress list [-account account]
-account string
only show suppression list for this account
# mox queue suppress add
Add address to suppression list for account.
usage: mox queue suppress add account address
# mox queue suppress remove
Remove address from suppression list for account.
usage: mox queue suppress remove account address
# mox queue suppress lookup
Check if address is present in suppression list, for any or specific account.
usage: mox queue suppress lookup [-account account] address
-account string
only check address in specified account
# mox queue webhook list
List matching webhooks in the queue.
Prints list of webhooks, their IDs and basic information.
usage: mox queue webhook list [filtersortflags]
-account string
account that queued the message/webhook
-asc
sort ascending instead of descending (default)
-event value
event this webhook is about: incoming, delivered, suppressed, delayed, failed, relayed, expanded, canceled, unrecognized
-ids value
comma-separated list of webhook IDs
-n int
number of webhooks to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-sort value
field to sort by, "nextattempt" (default) or "queued"
-submitted string
filter by time of submission relative to now, value must start with "<" (before now) or ">" (after now)
# mox queue webhook schedule
Change next delivery attempt for matching webhooks.
The next delivery attempt is adjusted by the duration parameter. If the -now
flag is set, the new delivery attempt is set to the duration added to the
current time, instead of added to the current scheduled time.
Schedule immediate delivery with "mox queue schedule -now 0".
usage: mox queue webhook schedule [filterflags] duration
-account string
account that queued the message/webhook
-event value
event this webhook is about: incoming, delivered, suppressed, delayed, failed, relayed, expanded, canceled, unrecognized
-ids value
comma-separated list of webhook IDs
-n int
number of webhooks to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-now
schedule for duration relative to current time instead of relative to current next delivery attempt for webhooks
-submitted string
filter by time of submission relative to now, value must start with "<" (before now) or ">" (after now)
# mox queue webhook cancel
Fail delivery of matching webhooks.
usage: mox queue webhook cancel [filterflags]
-account string
account that queued the message/webhook
-event value
event this webhook is about: incoming, delivered, suppressed, delayed, failed, relayed, expanded, canceled, unrecognized
-ids value
comma-separated list of webhook IDs
-n int
number of webhooks to return
-nextattempt string
filter by time of next delivery attempt relative to now, value must start with "<" (before now) or ">" (after now)
-submitted string
filter by time of submission relative to now, value must start with "<" (before now) or ">" (after now)
# mox queue webhook print
Print details of a webhook from the queue.
The webhook is printed to stdout as JSON.
usage: mox queue webhook print id
# mox queue webhook retired list
List matching webhooks in the retired queue.
Prints list of retired webhooks, their IDs and basic information.
usage: mox queue webhook retired list [filtersortflags]
-account string
account that queued the message/webhook
-asc
sort ascending instead of descending (default)
-event value
event this webhook is about: incoming, delivered, suppressed, delayed, failed, relayed, expanded, canceled, unrecognized
-ids value
comma-separated list of retired webhook IDs
-lastactivity string
filter by time of last activity relative to now, value must start with "<" (before now) or ">" (after now)
-n int
number of webhooks to return
-sort value
field to sort by, "lastactivity" (default) or "queued"
-submitted string
filter by time of submission relative to now, value must start with "<" (before now) or ">" (after now)
# mox queue webhook retired print
Print details of a webhook from the retired queue.
The retired webhook is printed to stdout as JSON.
usage: mox queue webhook retired print id
# mox import maildir
Import a maildir into an account.
@ -552,8 +760,9 @@ automatically initialized with configuration files, an account with email
address mox@localhost and password moxmoxmox, and a newly generated self-signed
TLS certificate.
All incoming email to any address is accepted (if checks pass), unless the
recipient localpart ends with:
All incoming email to any address is accepted (if checks pass) and delivered to
the account that is submitting the message, unless the recipient localpart ends
with:
- "temperror": fail with a temporary error code
- "permerror": fail with a permanent error code
@ -561,7 +770,8 @@ recipient localpart ends with:
- "timeout": no response (for an hour)
If the localpart begins with "mailfrom" or "rcptto", the error is returned
during those commands instead of during "data".
during those commands instead of during "data". If the localpart beings with
"queue", the submission is accepted but delivery from the queue will fail.
usage: mox localserve
-dir string
@ -793,11 +1003,11 @@ for a domain and create the TLSA DNS records it suggests to enable DANE.
usage: mox config ensureacmehostprivatekeys
# mox example
# mox config example
List available examples, or print a specific example.
List available config examples, or print a specific example.
usage: mox example [name]
usage: mox config example [name]
# mox checkupdate
@ -1128,6 +1338,18 @@ Prints this mox version.
usage: mox version
# mox webapi
Lists available methods, prints request/response parameters for method, or calls a method with a request read from standard input.
usage: mox webapi [method [baseurl-with-credentials]
# mox example
List available examples, or print a specific example.
usage: mox example [name]
# mox bumpuidvalidity
Change the IMAP UID validity of the mailbox, causing IMAP clients to refetch messages.
@ -1212,6 +1434,8 @@ and print them.
Parse message, print JSON representation.
usage: mox message parse message.eml
-smtputf8
check if message needs smtputf8
# mox reassignthreads