1. Fix the broken logic in (Sorry for including fix commit in same PR, I'm feeling quite tired and would like to go to sleep right away...)
2. Provides new method to obtain credential info for authentication, it will create a temp admin user if SYNO_USE_TEMP_ADMIN is set, instead of requiring the user's own credentials which will be saved in disk.
I do really don't like to have plaintext credentials be saved in disk, and I noticed that you've spent a lot of time fighting with 2FA related stuffs, so why not just get rid of the whole old way. :)
This escapes special characters used in POSIX sed to prevent mismatches.
e.g. `SYNO_Certficiate=*.example.com` would not match a description of
"*.example.com" and would look to match any number of double quotes (the
last character in the sed regex prior to certificate description),
followed by any single character, followed by "example", followed by any
character, followed by "com".
After this change, it will properly match `*.example.com` and not
`""zexamplefcom`.
Additionally we now store the certificate description as base64 encoded
to prevent issues with single quotes.
Tested on DSM 7.0-41222 (VDSM) and DSM 6.2.4-25556 (DS1515+).
As noted by @buxm, previous fix didn't work for all versions of DSM 6.
The better fix appears to be simply not outputting the "as_default"
parameter unless we are doing something with the default certificate.
For some DSM installs, it appears that setting the "default" flag to the
string "false" actually sets it to true. This causes Synology to set
the last updated certificate to be the default certificate. Using an
empty string appears to still be accepted as a false-y value for DSMs
where this isn't happening and corrects the behavior in the cases that
it was.
Credit to @Run-King for identifying the fix and @buxm for reporting.
Small changes for DSM 6:
All fields (except enable_syno_token as explained below) must either be in the GET params or the POST params, you can't mix GET and POST params
enable_syno_token=yes must be in both the GET and POST params.
If enable_syno_token=yes is only in the POST fields, then DSM6 returns a synotoken of --------. If enable_syno_token=yes is only in the GET params, then it returns no synotoken at all. It must be in both to work.
Need to use /webapi/auth.cgi instead of /webapi/entry.cgi
Verified with DSM 6.2.3-25426 Update 2 and DSM 7.0-40850
