PS0305: License Server Reached over HTTP


Severity	Warning or Error
Reported by	PostSharp
Message	`<Reason> The MSBuild property PostSharpAllowInsecureLicenseServer also controls this message: 'Warning' (the default) reports a warning, 'Error' breaks the build, and 'Allow' accepts the insecure URL.`

Cause

The PostSharpLicense MSBuild property or environment variable, a License element of a postsharp.config file, or a registration on the machine can give the URL of a PostSharp License Server instead of a license key. To request a lease, PostSharp sends the name of the current user and the name of the machine to this server. When the URL starts with http://, this information travels in cleartext.

PostSharp reports PS0305 for each license server that it reaches over HTTP. <Reason> names the server and explains the risk. PostSharp still uses the server.

The PostSharpAllowInsecureLicenseServer MSBuild property decides what PostSharp does:

Value	Effect
`Warning`, or no value	PS0305 is a warning. This is the default.
`Error` or `False`	PS0305 is an error, and the build stops.
`Allow` or `True`	PostSharp does not report PS0305.

PostSharp does not contact license servers in an unattended build, such as a build on a continuous integration server, so it does not report PS0305 there.

This message depends on a license server registered for the project or the machine, so no example can show it.

Resolution

Use the https:// URL of the license server, in the property, the file or the registration that names it. See Deploying License Keys. When the server does not accept HTTPS yet, ask its administrator to enable it; see Installing and Servicing PostSharp License Server.
When the license server runs in a network that you trust and must remain on HTTP, accept the insecure URL in the project file:
Full screen
```
<PropertyGroup>
  <PostSharpAllowInsecureLicenseServer>Allow</PostSharpAllowInsecureLicenseServer>
</PropertyGroup>
```
To forbid insecure license servers in your builds, set PostSharpAllowInsecureLicenseServer to Error.

Cause

Resolution

See Also