CertLevels (Socket function): Difference between revisions
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The <var>CertLevels</var> function has an effect similar to | The <var>CertLevels</var> function has an effect similar to | ||
its equivalent $function, <var>[[$Sock_Cert_Levels]]</var>. | its equivalent $function, <var>[[$Sock_Cert_Levels]]</var>. | ||
==Syntax== | ==Syntax== | ||
{{Template:Socket:CertLevels syntax}} | {{Template:Socket:CertLevels syntax}} | ||
===Syntax terms=== | ===Syntax terms=== | ||
<table | <table> | ||
<tr><th>%number</th> | <tr><th>%number</th> | ||
<td>Return string, which contains the value of the number of levels of the certificate provided by the remote partner on a socket. | <td>Return string, which contains the value of the number of levels of the certificate provided by the remote partner on a socket. | ||
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Since all certificates accepted by <var class="product">Janus Network Security</var> must be signed, <var class="term">%number</var> will always be greater than or equal to 2 if non-zero. Level 3 would indicate a certificate that includes an intermediate certificate. | Since all certificates accepted by <var class="product">Janus Network Security</var> must be signed, <var class="term">%number</var> will always be greater than or equal to 2 if non-zero. Level 3 would indicate a certificate that includes an intermediate certificate. | ||
For information on the data that can be retrieved for each certificate level see <var>[[CertInfo (Socket function)|CertInfo]]</var>. To learn more about client certificates, see | For information on the data that can be retrieved for each certificate level see <var>[[CertInfo (Socket function)|CertInfo]]</var>. To learn more about client certificates, see [[Janus Network Security]]. | ||
</td></tr> | </td></tr> | ||
<tr><th>socket</th> | <tr><th>socket</th> | ||
<td>A variable or an expression that is a reference to a <var>Socket</var> object. | <td>A variable or an expression that is a reference to a <var>Socket</var> object. | ||
</td></tr></table> | </td></tr></table> | ||
==Usage notes== | ==Usage notes== | ||
<ul> | <ul> | ||
<li><var>CertLevels</var> returns the value -1 if the socket is not open | <li><var>CertLevels</var> returns the value <code>-1</code> if the socket is not open | ||
and <code>ONRESET CONTINUE</code> is in effect for the socket. | and <code>ONRESET CONTINUE</code> is in effect for the socket. </li> | ||
<li>A <var>CertLevels</var> call may cause an [[CertInfo (Socket function)#reneg|SSL renegotiation]] in order to | <li>A <var>CertLevels</var> call may cause an [[CertInfo (Socket function)#reneg|SSL renegotiation]] in order to | ||
request a digital certificate from the client. | request a digital certificate from the client. </li> | ||
<li>To retrieve any of the certificate entity values, you can use the <var>[[CertInfo (Socket function)|CertInfo]]</var> function. </li> | |||
</ul> | </ul> | ||
==Example== | ==Example== | ||
The following statement | The following statement | ||
returns the number of levels of the certificate received from the remote partner | returns the number of levels of the certificate received from the remote partner | ||
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</p> | </p> | ||
==See also== | |||
{{Template:Socket:CertLevels footer}} | {{Template:Socket:CertLevels footer}} | ||
Latest revision as of 19:06, 1 June 2016
Number of levels of the SSL certificate (Socket class)
This method retrieves the number of
levels of the SSL certificate provided on a socket by the remote partner.
The CertLevels function has an effect similar to
its equivalent $function, $Sock_Cert_Levels.
Syntax
%number = socket:CertLevels
Syntax terms
| %number | Return string, which contains the value of the number of levels of the certificate provided by the remote partner on a socket.
If no such certificate was provided, the null string is returned. Otherwise, level 0 corresponds to the client or the "subject" of the certificate; level 1 to the "signer" of the certificate; level 2 to the "signer" of the level 1 signer's certificate; and so on. Since all certificates accepted by Janus Network Security must be signed, %number will always be greater than or equal to 2 if non-zero. Level 3 would indicate a certificate that includes an intermediate certificate. For information on the data that can be retrieved for each certificate level see CertInfo. To learn more about client certificates, see Janus Network Security. |
|---|---|
| socket | A variable or an expression that is a reference to a Socket object. |
Usage notes
- CertLevels returns the value
-1if the socket is not open andONRESET CONTINUEis in effect for the socket. - A CertLevels call may cause an SSL renegotiation in order to request a digital certificate from the client.
- To retrieve any of the certificate entity values, you can use the CertInfo function.
Example
The following statement
returns the number of levels of the certificate received from the remote partner
using the %sok socket:
%count = %sok:Certlevels