Class RhinoBasedPacEvaluator

java.lang.Object

net.sourceforge.jnlp.proxy.pac.RhinoBasedPacEvaluator

All Implemented Interfaces:

PacEvaluator

public class RhinoBasedPacEvaluator
extends Object
implements PacEvaluator

Represents a Proxy Auto Config file. This object can be used to evaluate the proxy file to find the proxy for a given url.

See Also:

• The PAC File

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	RhinoBasedPacEvaluator.EvaluatePacAction	Helper classs to run remote javascript code (specified by the user as PAC URL) inside a sandbox.

Field Summary

Fields

Modifier and Type	Field	Description
private final TimedHashMap<String,String>	cache
private static final Logger	LOG
private final String	pacContents
private final String	pacHelperFunctionContents
private final URL	pacUrl
private static final String	PROPERTY_READ_ACTION

Constructor Summary

Constructors

Constructor	Description
RhinoBasedPacEvaluator(URL pacUrl)	Initialize a new object by using the PAC file located at the given URL.

Method Summary

Modifier and Type	Method	Description
private void	addToCache(URL url, String proxyResult)	Adds an entry to the cache
private String	getFromCache(URL url)	Gets an entry from the cache
private String	getHelperFunctionContents()	Returns the pac helper functions as a String.
private String	getPacContents(URL pacUrl)	Returns the contents of file at pacUrl as a String.
String	getProxies(URL url)	Get the proxies for accessing a given URL.
private String	getProxiesWithoutCaching(URL url)	Get the proxies for accessing a given URL.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

PROPERTY_READ_ACTION

private static final String PROPERTY_READ_ACTION

See Also:

• Constant Field Values

LOG

private static final Logger LOG

pacHelperFunctionContents

private final String pacHelperFunctionContents

pacContents

private final String pacContents

pacUrl

private final URL pacUrl

cache

private final TimedHashMap<String,String> cache

Constructor Details

RhinoBasedPacEvaluator

public RhinoBasedPacEvaluator(URL pacUrl)

Initialize a new object by using the PAC file located at the given URL.

Parameters:

pacUrl - the url of the PAC file to use

Method Details

getProxies

public String getProxies(URL url)

Get the proxies for accessing a given URL. The result is obtained by evaluating the PAC file with the given url (and the host) as input. This method performs caching of the result.

Specified by:

getProxies in interface PacEvaluator

Parameters:

url - the url for which a proxy is desired

Returns:

a list of proxies in a string like

"PROXY foo.example.com:8080; PROXY bar.example.com:8080; DIRECT"

See Also:

• getProxiesWithoutCaching(URL)

getProxiesWithoutCaching

private String getProxiesWithoutCaching(URL url)

Get the proxies for accessing a given URL. The result is obtained by evaluating the PAC file with the given url (and the host) as input.

Parameters:

url - the url for which a proxy is desired

Returns:

a list of proxies in a string like

"PROXY example.com:3128; DIRECT"

See Also:

• getProxies(URL)

getPacContents

private String getPacContents(URL pacUrl)

Returns the contents of file at pacUrl as a String.

getHelperFunctionContents

private String getHelperFunctionContents()

Returns the pac helper functions as a String. The functions are read from net/sourceforge/jnlp/resources/pac-funcs.js

getFromCache

private String getFromCache(URL url)

Gets an entry from the cache

addToCache

private void addToCache(URL url,
 String proxyResult)

Adds an entry to the cache