Support LDAP auth

[reyman]

Do you have some plan to create a docker container/images for hackmd ?
I can be great for easy self-hosted installation :)

[jackycute]

Yes, we already have it.
https://github.com/hackmdio/docker-hackmd

[reyman]

@jackycute You support Ldap ?

[jackycute]

Hmm, you mean the user auth use LDAP?
I have no experience to do that.
Maybe we can discuss more.
Why you want to use LDAP here?

[jackycute]

Since we use passportjs to auth right now.
Support LDAP maybe not difficult via this repo:
https://github.com/vesse/passport-ldapauth

[reyman]

@jackycute Yes, for an usage in academic environment (each laboratory/university have an ldap...) , ldap is a great and common way to offer new services at zero cost :)

[jackycute]

OK I get it, then I will change this issue's name.
Please notice this feature is not on top one priority.
But definitely will solve in the future.

[jackycute]

PR welcome 😄

[jackycute]

@reyman Hi, could you help us to test if this issue solved?

[reyman]

Why not ! I could test that during february Sent from [Nylas Pro](https://nylas.com/nylas-pro?ref=n1), the most powerful email app for work

On janv. 24 2017, at 4:49 am, Max Wu ***@***.***> wrote: ***@***.***(https://github.com/reyman) Hi, could you help us to test if this

issue solved?

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[exstral]

I've been trying to get this to work using our internal LDAP. I can get it to connect, but since we are using our own Root CA to sign the SSL certs for our services it complains it cannot verify the certificate. Even when I supple our root ca file using the HMD_LDAP_TLS_CA variable it does not work. Maybe it is not reading that file properly :(

This is the error that is logged, and then HackMD crashes.

uncaughtException: unable to verify the first certificate date=Tue Feb 07 2017 11:40:50 GMT+0000 (UTC), pid=23, uid=10000, gid=65533, cwd=/hackmd, execPath=/usr/local/bin/node, version=v6.9.5, argv=[/usr/local/bin/node, /hackmd/app.js], rss=77271040, heapTotal=54575104, heapUsed=46572568, loadavg=[0.2060546875, 0.0703125, 0.02294921875], uptime=327595, trace=[column=null, file=null, function=Error, line=null, method=null, native=true, column=38, file=_tls_wrap.js, function=, line=1079, method=null, native=false, column=13, file=events.js, function=emitNone, line=86, method=null, native=false, column=7, file=events.js, function=TLSSocket.emit, line=185, method=emit, native=false, column=8, file=_tls_wrap.js, function=TLSSocket._finishInit, line=603, method=_finishInit, native=false, column=38, file=_tls_wrap.js, function=TLSWrap.ssl.onhandshakedone, line=433, method=ssl.onhandshakedone, native=false], stack=[Error: unable to verify the first certificate,     at Error (native),     at TLSSocket.<anonymous> (_tls_wrap.js:1079:38),     at emitNone (events.js:86:13),     at TLSSocket.emit (events.js:185:7),     at TLSSocket._finishInit (_tls_wrap.js:603:8),     at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:433:38)]

Any ides on how to debug?

[jackycute]

@esbite I found we might have some issue on passing the ca file.
Because the HMD_LDAP_TLS_CA will pass to node tls modules
And the ca option will need to be the certificate's content instead of the ca path.
https://github.com/hackmdio/hackmd/blob/master/lib/config.js#L126
It should be an array and read read before passing.
Like we've done for ssl server setup here.

[jackycute]

@esbite I made a patch in bbbf64a
Could you please give it a try?

[exstral]

@jackycute Nope when I using the variable HMD_LDAP_TLS_CA now I get this error right at startup:

/hackmd/lib/config.js:130
    if (Array.isArray(ldap.tlsOptions.ca) && ldap.tlsOptions.ca.length > 0) {
                                     ^

TypeError: Cannot read property 'ca' of undefined
    at Object.<anonymous> (/hackmd/lib/config.js:130:38)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/hackmd/app.js:26:14)
    at Module._compile (module.js:570:32)

[jackycute]

@esbite Fixed in 1cc27e1

[exstral]

Thanks now it works great! :)

[jackycute]

I think this feature has been implemented and used by many of our users.
It's time to close this.