<?php

class CAS_ProxyChain_AllowedList
{
	private $_chains = array();


	/**
	 * Check whether proxies are allowed by configuration
	 *
	 * @return bool
	 */
	public function isProxyingAllowed()
	{
		return (count($this->_chains) > 0);
	}


	/**
	 * Add a chain of proxies to the list of possible chains
	 *
	 * @param CAS_ProxyChain_Interface $chain A chain of proxies
	 *
	 * @return void
	 */
	public function allowProxyChain(CAS_ProxyChain_Interface $chain)
	{
		$this->_chains[] = $chain;
	}


	/**
	 * Check if the proxies found in the response match the allowed proxies
	 *
	 * @param array $proxies list of proxies to check
	 *
	 * @return bool whether the proxies match the allowed proxies
	 */
	public function isProxyListAllowed(array $proxies)
	{
		phpCAS::traceBegin();
		if (empty($proxies)) {
		    phpCAS::trace("No proxies were found in the response");
		    phpCAS::traceEnd(true);
		    return true;
		} elseif (!$this->isProxyingAllowed()) {
		    phpCAS::trace("Proxies are not allowed");
		    phpCAS::traceEnd(false);
		    return false;
		} else {
		    $res = $this->contains($proxies);
		    phpCAS::traceEnd($res);
		    return $res;
		}
	}


	/**
	 * Validate the proxies from the proxy ticket validation against the
	 * chains that were definded.
	 *
	 * @param array $list List of proxies from the proxy ticket validation.
	 *
	 * @return bool if any chain fully matches the supplied list
	 */
	public function contains(array $list)
	{
		phpCAS::traceBegin();
		$count = 0;
		foreach ($this->_chains as $chain) {
		    phpCAS::trace("Checking chain ". $count++);
		    if ($chain->matches($list)) {
		        phpCAS::traceEnd(true);
		        return true;
		    }
		}
		phpCAS::trace("No proxy chain matches.");
		phpCAS::traceEnd(false);
		return false;
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NzYwNjY5NjYwMjY4MzIyMCA4MjU0NzQzMTI5OTk2MDcxIDk5MzQ0MjA3MzIwNjIwMDc=