Started digging back into email sending and got closer.

I just noticed that the Cloudron docs say that the STARTLS uses a self signed cert, which makes sense given that the host I'm using is mail and not my.example.com.

So I switched back to unencrypted and enabled more verbose logging. Ended up with:

Jul 25 16:34:22 [2019-07-25 16:34:22][rocket::rocket][INFO] POST /admin//invite/ application/json:
Jul 25 16:34:22 [2019-07-25 16:34:22][_][INFO] Matched: POST /admin/invite (invite_user)
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] connecting to 172.18.0.6:2525
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] Read: 220 my.example.com ESMTP Haraka/2.8.23 ready<CRLF>
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp][INFO] connection established to 172.18.0.6:2525
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] Wrote: EHLO 90859b46-d863-4609-a83a-79c5f010254c<CRLF>
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] Read: 250-my.example.com Hello 90859b46-d863-4609-a83a-79c5f010254c.cloudron [172.18.0.12]Haraka is at your service.<CRLF>250-PIPELINING<CRLF>250-8BITMIME<CRLF>250-SMTPUTF8<CRLF>250-SIZE 26214400<CRLF>250 AUTH LOGIN PLAIN<CRLF>
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp][DEBUG] server my.example.com with {Authentication(Login), Authentication(Plain), SmtpUtfEight, EightBitMime}
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp][INFO] No supported authentication mechanisms available
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] Wrote: MAIL FROM:<bitwarden.app@example.com> BODY=8BITMIME SMTPUTF8<CRLF>
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] Read: 550 Mail from domain 'example.com' is not allowed from your host<CRLF>
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] Wrote: QUIT<CRLF>
Jul 25 16:34:22 [2019-07-25 16:34:22][lettre::smtp::client][DEBUG] Read: 221 my.example.com closing connection. Have a jolly good day.<CRLF>
Jul 25 16:34:22 [2019-07-25 16:34:22][bitwarden_rs::error][ERROR] Error sending email. Mail from domain 'example.com' is not allowed from your host
Jul 25 16:34:22 [2019-07-25 16:34:22][_][INFO] Outcome: Success
Jul 25 16:34:22 172.18.0.1 - User [25/Jul/2019:16:34:22 +0000] "POST /admin/invite/ HTTP/1.1" 400 990 "https://bitwarden.example.com/admin" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Firefox/68.0"
Jul 25 16:34:22 [2019-07-25 16:34:22][_][INFO] Response succeeded.
Jul 25 16:34:24 [Thu Jul 25 16:34:24.254775 2019] [access_compat:error] [pid 32] [client 172.18.0.1:37122] AH01797: client denied by server configuration: proxy:http://127.0.0.1:3000/admin/

So this is definitely more descriptive. Seems like the server is rejecting the request.

@fbartels in addition to the admin page issue described above, I'm running into email sending issues again.

This time I'm not having success with any setting.

Explicit TLS only: Bitwarden hangs and times out when trying to invite/send with a panic:

Jun 28 03:35:56 thread 'main' panicked at 'Could not call with http://90859b46-d863-4609-a83a-79c5f010254c:3000/admin/invite. Error { kind: Io(Custom { kind: TimedOut, error: StringError("timed out") }), url: Some("http://90859b46-d863-4609-a83a-79c5f010254c:3000/admin/invite") }', src/bw_admin.rs:134:21
Jun 28 03:35:56 stack backtrace:
Jun 28 03:35:56 0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
Jun 28 03:35:56 at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
Jun 28 03:35:56 1: std::sys_common::backtrace::_print
Jun 28 03:35:56 at src/libstd/sys_common/backtrace.rs:70
Jun 28 03:35:56 2: std::panicking::default_hook::{{closure}}
Jun 28 03:35:56 at src/libstd/sys_common/backtrace.rs:58
Jun 28 03:35:56 at src/libstd/panicking.rs:200
Jun 28 03:35:56 3: std::panicking::default_hook
Jun 28 03:35:56 at src/libstd/panicking.rs:215
Jun 28 03:35:56 4: std::panicking::rust_panic_with_hook
Jun 28 03:35:56 at src/libstd/panicking.rs:478
Jun 28 03:35:56 5: std::panicking::continue_panic_fmt
Jun 28 03:35:56 at src/libstd/panicking.rs:385
Jun 28 03:35:56 6: std::panicking::begin_panic_fmt
Jun 28 03:35:56 at src/libstd/panicking.rs:340
Jun 28 03:35:56 7: bitwarden_rs_ldap::bw_admin::Client::invite
Jun 28 03:35:56 8: bitwarden_rs_ldap::invite_from_ldap
Jun 28 03:35:56 9: bitwarden_rs_ldap::main
Jun 28 03:35:56 10: std::rt::lang_start::{{closure}}
Jun 28 03:35:56 11: std::panicking::try::do_call
Jun 28 03:35:56 at src/libstd/rt.rs:49
Jun 28 03:35:56 at src/libstd/panicking.rs:297
Jun 28 03:35:56 12: __rust_maybe_catch_panic
Jun 28 03:35:56 at src/libpanic_unwind/lib.rs:87
Jun 28 03:35:56 13: std::rt::lang_start_internal
Jun 28 03:35:56 at src/libstd/panicking.rs:276
Jun 28 03:35:56 at src/libstd/panic.rs:388
Jun 28 03:35:56 at src/libstd/rt.rs:48
Jun 28 03:35:56 14: main

Enable SSL only: Bitwarden hangs and times out when trying to invite/send

Jun 28 03:37:54 [Fri Jun 28 03:37:54.553168 2019] [proxy_http:error] [pid 34] (70007)The timeout specified has expired: [client 172.18.0.1:36626] AH01102: error reading status line from remote server 127.0.0.1:3000, referer: https://bitwarden.iamthefij.com/admin

With both enabled: I get the handshake error.

Jun 28 03:40:52 [2019-06-28 03:40:52][bitwarden_rs::error][ERROR] Error sending email. handshake error

@girish woo!!! That did it! I'll just clean up all the stuff I did for debugging and I can publish it after the next Cloudron update.

@girish is there anything that might prevent this container from querying LDAP?

I'm getting the following error:

Jun 27 18:30:57 thread 'main' panicked at 'rc=1 (operationsError), dn: "ou=users, dc=cloudron", text: "No such app"', src/main.rs:21:9

To verify that it's something to do with the cron container, I generate the config file and cat it to the log in the main application as well as the schedule container. I diffed the two configs and they are identical.

However, when I run the sync script from the terminal attached to the main container, it works correctly. From the scheduled container, I get this error.

Any ideas? I'm actually unable to find out where the "No such app" comes from. It is a pretty generic term, so searching online isn't much help. I did check the bitwarden_ldap_sync codebase, the Rust ldap3 codebase, and the box codebase, but no luck.

@fbartels I'm not sure if something is different in my configuration... but if I visit my site at bitwarden.example.com/admin from a private window with no cookies, I'm not getting a basic auth prompt.

Is that working for you?

@girish roger. That worked! Now I'm getting some new error from within Bitwarden_rs, which is good and means that it's actually hitting the server!

@fbartels got it. That could also be facilitated using an ARG.

It doesn't matter too much. The difference is really just in caching, but it doesn't look like the Cloudron build servers do caching.

@girish Hmm... it doesn't seem to be working correctly.

I'm getting:

Jun 26 17:55:25 thread 'main' panicked at 'Could not authenticate with http://8e50545e-6293-459d-8aa8-5abdb13695dc-ldap_sync:3000. Error { kind: Hyper(Error { kind: Connect, cause: Os { code: 111, kind: ConnectionRefused, message: "Connection refused" } }), url: Some("http://8e50545e-6293-459d-8aa8-5abdb13695dc-ldap_sync:3000/admin/") }', src/bw_admin.rs:62:17

It appears that the hostname is the hostname of the ldap_sync container that the cron job spawned? Is that correct? When I open a terminal for the app, it just gives the first part without ldap_sync, which seems right.

@fbartels was there a reason for moving the bitwarden image from the COPY statement to a FROM statement at the beginning? I'm picking up LDAP support again now that the hostname is available and I'm getting the binary from a published images as well.

Was it just to avoid pulling when modifying any config values?

Awesome! I will give this a shot.

@girish any luck with getting HTTP access to work?