Cisco TelePresence Administrator's Manual page 284

test the outcome of applying the regex and template patterns that retrieve a certificate's authorization
n
credentials (the username)
You can test against:
a certificate on your local file system
n
the browser's currently loaded certificate
n
To test if a certificate is valid:
1. Select the Certificate source. You can choose to:
upload a test file from your file system in either PEM or plain text format; if so click Browse to select
l
the certificate file you want to test
test against the certificate currently loaded into your browser (only available if the system is already
l
configured to use Certificate validation and a certificate is currently loaded)
2. Ignore the Certificate-based authentication pattern section - this is only relevant if you are extracting
authorization credentials from the certificate.
3. Click Check certificate.
4. The results of the test are shown in the Certificate test results section.
To retrieve authorization credentials (username) from the certificate:
1. Select the Certificate source as described above.
2. Configure the Regex and Username format fields as required. Their purpose is to extract a username
from the nominated certificate by supplying a regular expression that will look for an appropriate string
pattern within the certificate. The fields default to the currently configured settings on the
based authentication configuration
In the Regex field, use the (?<name>regex) syntax to supply names for capture groups so that
l
matching sub-patterns can be substituted in the associated Username format field, for example, /
(Subject:.*, CN=(?<Group1>.*))/m.
Note that the regex defined here must conform to
The Username format field can contain a mixture of fixed text and the capture group names used in the
l
Regex. Delimit each capture group name with #, for example, prefix#Group1#suffix. Each
capture group name will be replaced with the text obtained from the regular expression processing.
3. Click Check certificate.
The results of the test are shown in the Certificate test results section. The Resulting string item is the
username credential that would be checked against the relevant authorization mechanism to determine
that user's authorization (account access) level.
4. If necessary, you can modify the Regex and Username format fields and repeat the test until the correct
results are produced.
Note that if the Certificate source is an uploaded PEM or plain text file, the selected file is temporarily
uploaded to the VCS when the test is first performed:
if you want to keep testing different Regex and Username format combinations against the same file,
l
you do not have to reselect the file for every test
if you change the contents of your test file on your file system, or you want to choose a different file, you
l
must click Browse again and select the new or modified file to upload
Cisco VCS Administrator Guide (X7.2)
page but you can change them as required.
PHP regex
Certificate-
guidelines.
Maintenance
Page 284 of 498