This supports better authorization
handling for DAP requests, especially redirection
based authorization. I also added a new test case
ncdap_tests/testauth.sh.
Specifically, suppose I have a netrc file /tmp/netrc
containing this.
machine uat.urs.earthdata.nasa.gov login xxxxxx password yyyyyy
Also suppose I have a .ocrc file containing these lines
HTTP.COOKIEJAR=/tmp/cookies
HTTP.NETRC=/tmp/netrc
Assume that .ocrc is in the local directory or HOME.
Then this command should work (assuming a valid login and password).
ncdump -h "https://54.86.135.31/opendap/data/nc/fnoc1.nc"
Fix Http Basic Authorization.
The problem is really in oc2.0.
In order for it to work,
the CURLOPT_COOKIEJAR must have
a non-null value. The code
was already there, but not being
used for some reason.
1. fixed cookiejar code in oc2.0
2. synched oc2.0 with netcdf-c/oc2
3. added a test case
