Code review: 8010464: Evolve java networking same origin policy

[Alan Bateman]

On 10/05/2013 12:34, Michael McMahon wrote:
> Hi,
>
> This is the webrev for the HttpURLPermission addition.
> As well as the new permission class, the change
> includes the use of the permission in java.net.HttpURLConnection.
>
> The code basically checks for a HttpURLPermission in plainConnect(),
> getInputStream() and getOutputStream() for the request and if
> the caller has permission the request is executed in a doPrivileged()
> block. When the limited doPrivileged feature is integrated, I will
> change the doPrivileged() call to limit the privilege elevation to a 
> single
> SocketPermission (as shown in the code comments).
>
> The webrev is at http://cr.openjdk.java.net/~michaelm/8010464/webrev.1/
A partial review, focusing mostly on the spec as we've been through a 
few rounds on that part already. Overall I think the javadoc looks quite 
good. I realize someone suggested using lowercase "url" in the javadoc 
but as the usage is as an acronym then it might be clearer if it were in 
uppercase, maybe "URL string" to avoid any confusion with java.net.URL.

I assume you'll add a copyright header to HttpURLPermission before 
pushing this.

A minor comment on the javadoc tags is that you probably should use 
@throws instead of @exception.

At a high-level it would be nice if the fields were final but I guess 
the parsing of actions and being serialized complicates this.

setURI - this parses the URI rather than "sets" it so maybe it should be 
renamed. If you use URI.create then it would avoid needing to catch the 
URISyntaxException.

normalizeMethods/normalizeHeaders- I assume these could use an ArrayList.

HttpURLConnection - "if a security manager is installed", should this be 
"set"?

MessageHeader - some of the methods are synchronized, some are not. I 
can't quite tell if getHeaderNames needs to be synchronized. Also is 
there any reason why this can't use Arrays.asList?

HttpURLConnection.setRequestMethod - "connection being open" -> "connect 
in progress"?

That's all I have for now but I think there is further review work 
required on HttpURLConnection as some of that is tricky.

-Alan.