multifile auth module error: "Password file is missing"

[Denis01]

Hello
Centos7.3
Proxy connection
Using HTML client and code (below) to connect thru Proxy

$ cat > multifile.txt <<EOF 
ubuntu1|secretpassword1|1000|1000|:100 
ubuntu2|secretpassword2|1000|1000|tcp:127.0.0.1:10000 
EOF 
$ xpra start --start-child=/bin/gnome-calculator --bind-tcp=0.0.0.0:10000 :100 -d auth 
$ xpra proxy :13 --bind-tcp=0.0.0.0:10002  --tcp-auth=multifile:filename=multifile.txt -d auth

Tried:

• multifile.txt
• ./multifile.txt
• /multifile.txt

and all the time "Error: password file is missing"
Thank you

[Antoine Martin]

I believe that you're being bitten by the same issue as ticket:1264#comment:7 : you have to use absolute paths for filenames when the server daemonizes. r15488 now allows relative file paths.
(please always specify what version you are running)

Relevant excerpts from the proxy's "-d auth" log output should look like this:

init_auth(..) auth class=None, tcp auth class=('multifile', <class 'xpra.server.auth.multifile_auth.Authenticator'>, {'filename': 'multifile.txt'}), ssl auth class=('multifile', <class 'xpra.server.auth.multifile_auth.Authenticator'>, {'filename': 'multifile.txt'}), vsock auth class=None
Authentication required by multi password file authenticator module
 sending challenge for username 'ubuntu1' using hmac+sha512 digest
processing authentication with multi password file, response=f919cd5..., client_salt=646261..., challenge_sent=True, digest_modes=['hmac', 'xor', 'hmac+whirlpool', 'hmac+sha512', 'hmac+sha384', 'hmac+sha256', 'hmac+sha224', 'hmac+sha1', 'hmac+sha', 'hmac+ripemd160', 'hmac+md5', 'hmac+md4', 'hmac+ecdsa-with-SHA1', 'hmac+dsaWithSHA', 'hmac+dsaEncryption', 'hmac+SHA512', 'hmac+SHA384', 'hmac+SHA256', 'hmac+SHA224', 'hmac+SHA1', 'hmac+SHA', 'hmac+RIPEMD160', 'hmac+MD5', 'hmac+MD4', 'hmac+DSA-SHA', 'hmac+DSA']
authenticate_hmac(f919cd57..., dba8c52b7...)
mtime(/home/antoine/tmp/multifile.txt)=1491124949.21
loaded 94 bytes from 'multifile.txt'
...
authenticate: auth-info(ubuntu1)=('secretpassword1', 1000, 1000, [':100'], {}, {})
multifile authenticate_hmac(f919cd..) password='secretpassword1', hex(salt)=0601560e560.., hash=f919cd57...
authentication challenge passed

@Denis01: please close if that works for you.
Please also edit the title: AFAIK, this has nothing to do with auth=allow.

[Antoine Martin]

(editing ticket title)