There is a better way to handle authentication without touching netCDF-java
lib (Thanks to Robert B. Schmunk of NASA, the developer of Panoply) and it
is well documented at
http://www.unidata.ucar.edu/software/netcdf-java/reference/HTTPauthentication.html
I got into this because I only have the source code of all netcdf-java, and
this was the only way that I could use other software that is built on
netcdf-java. I just wonder if this would be a good thing to do for
developers to add some features like when netcdf-java lib sees a URL like
http://user:passwd@host, it will automatically to turn on authentication
Credential, and that is what I have done with just a few lines of change.
On Sep 28, 2010 2:41pm, Dennis Heimbigner <dmh@xxxxxxxxxxxxxxxx> wrote:
Can you send your changes (or the complete files)
to me at dmh@xxxxxxxxxxxxxxxx? I want to see what you did.
=Dennis Heimbigner
Unidata
Ying at NCCS wrote:
Hi John,
Sorry if this is not the right place to post this message.
I have problem to use netcdf java (along with opendap.jar etc) to access
a remote data (via opendap) that requires basic authentication. Basic
authentication does not provide security to the dataset ---but just a
sort of limitation for public access. For example, a group researchers
want to share datasets that are still under QC, and they certainly want
to make sure it is not perceived as data product for all. Anyway popular
data analysis software like GrADS and Ferret can all handle URL like
http://usr:pass@... to read data. And that was the way I set up servers
while I was in Hawaii. Right now, using matlab (if it calls use netCDF
java lib) application and GISS Panoply can not read opendap that requires
basic authentication. It seems to me that opendap-2.2.jar (by OPENDAP
group) and netcdf-4.2.jar (by UNIDATA group) (specifically
opendap.dap.DConnect2 and ucar.nc2.dataset.NetCdfDataset ) need basic
authentication credential enabled.
I have fixed the problem but it is rather ugly -:) for distribution. I
wonder if you developers can put this feature in your development or if
there is any tip to share with me that it can be handled in the main
method (like to create a static httpClient object that can take care all
the authentication challenge all the way down to the lib.
Many thanks..
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