Actualización

vendor/apereo/phpcas/source/CAS/ProxyChain/AllowedList.php

@@ -0,0 +1,119 @@
+<?php
+
+/**
+ * Licensed to Jasig under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * Jasig licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * PHP Version 7
+ *
+ * @file     CAS/ProxyChain/AllowedList.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+
+/**
+ * ProxyChain is a container for storing chains of valid proxies that can
+ * be used to validate proxied requests to a service
+ *
+ * @class    CAS_ProxyChain_AllowedList
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+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;
+    }
+}
+?>

vendor/apereo/phpcas/source/CAS/ProxyChain/Any.php

@@ -0,0 +1,64 @@
+<?php
+
+/**
+ * Licensed to Jasig under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * Jasig licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * PHP Version 7
+ *
+ * @file     CAS/ProxyChain/Any.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * A proxy-chain definition that will match any list of proxies.
+ *
+ * Use this class for quick testing or in certain production screnarios you
+ * might want to allow allow any other valid service to proxy your service.
+ *
+ * THIS CLASS IS HOWEVER NOT RECOMMENDED FOR PRODUCTION AND HAS SECURITY
+ * IMPLICATIONS: YOU ARE ALLOWING ANY SERVICE TO ACT ON BEHALF OF A USER
+ * ON THIS SERVICE.
+ *
+ * @class    CAS_ProxyChain_Any
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+class CAS_ProxyChain_Any
+implements CAS_ProxyChain_Interface
+{
+
+    /**
+     * Match a list of proxies.
+     *
+     * @param array $list The list of proxies in front of this service.
+     *
+     * @return bool
+     */
+    public function matches(array $list)
+    {
+        phpCAS::trace("Using CAS_ProxyChain_Any. No proxy validation is performed.");
+        return true;
+    }
+
+}

vendor/apereo/phpcas/source/CAS/ProxyChain/Interface.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * Licensed to Jasig under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * Jasig licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * PHP Version 7
+ *
+ * @file     CAS/ProxyChain/Interface.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * An interface for classes that define a list of allowed proxies in front of
+ * the current application.
+ *
+ * @class    CAS_ProxyChain_Interface
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+interface CAS_ProxyChain_Interface
+{
+
+    /**
+     * Match a list of proxies.
+     *
+     * @param array $list The list of proxies in front of this service.
+     *
+     * @return bool
+     */
+    public function matches(array $list);
+
+}

vendor/apereo/phpcas/source/CAS/ProxyChain/Trusted.php

@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * Licensed to Jasig under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * Jasig licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * PHP Version 7
+ *
+ * @file     CAS/ProxyChain/Trusted.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * A proxy-chain definition that defines a chain up to a trusted proxy and
+ * delegates the resposibility of validating the rest of the chain to that
+ * trusted proxy.
+ *
+ * @class    CAS_ProxyChain_Trusted
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+class CAS_ProxyChain_Trusted
+extends CAS_ProxyChain
+implements CAS_ProxyChain_Interface
+{
+
+    /**
+     * Validate the size of the the list as compared to our chain.
+     *
+     * @param array $list list of proxies
+     *
+     * @return bool
+     */
+    protected function isSizeValid (array $list)
+    {
+        return (sizeof($this->chain) <= sizeof($list));
+    }
+
+}