Merge branch 'master' into php5

* master:
  Setup SSH key and agent for travis user.
  Add a functional test case for SSH2 login using Agent.

.travis.yml

@@ -19,6 +19,7 @@ env:
 before_install: true
 
 install:
+  - eval `ssh-agent -s`
   - travis/setup-secure-shell.sh
   - sh -c "if [ '$TRAVIS_PHP_VERSION' != 'hhvm' ]; then travis/install-php-extensions.sh; fi"
   - sh -c "if [ '$TRAVIS_PHP_VERSION' != '5.2' ]; then travis/setup-composer.sh; fi"

tests/Functional/Net/SSH2AgentTest.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * @author    Andreas Fischer <bantu@phpbb.com>
+ * @copyright 2014 Andreas Fischer
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ */
+
+class Functional_Net_SSH2AgentTest extends PhpseclibFunctionalTestCase
+{
+    public static function setUpBeforeClass()
+    {
+        if (!isset($_SERVER['SSH_AUTH_SOCK'])) {
+            self::markTestSkipped(
+                'This test requires an SSH Agent (SSH_AUTH_SOCK env variable).'
+            );
+        }
+        parent::setUpBeforeClass();
+    }
+
+    public function testAgentLogin()
+    {
+        $ssh = new Net_SSH2($this->getEnv('SSH_HOSTNAME'));
+        $agent = new System_SSH_Agent;
+
+        $this->assertTrue(
+            $ssh->login($this->getEnv('SSH_USERNAME'), $agent),
+            'SSH2 login using Agent failed.'
+        );
+    }
+}

travis/setup-secure-shell.sh

@@ -13,5 +13,19 @@ set -x
 USERNAME='phpseclib'
 PASSWORD='EePoov8po1aethu2kied1ne0'
 
+# Create phpseclib user and home directory
 sudo useradd --create-home --base-dir /home "$USERNAME"
+
+# Set phpseclib user password
 echo "$USERNAME:$PASSWORD" | sudo chpasswd
+
+# Create a 1024 bit RSA SSH key pair without passphrase for the travis user
+ssh-keygen -t rsa -b 1024 -f "$HOME/.ssh/id_rsa" -q -N ""
+
+# Add the generated private key to SSH agent of travis user
+ssh-add "$HOME/.ssh/id_rsa"
+
+# Allow the private key of the travis user to log in as phpseclib user
+sudo mkdir -p "/home/$USERNAME/.ssh/"
+sudo cp "$HOME/.ssh/id_rsa.pub" "/home/$USERNAME/.ssh/authorized_keys"
+sudo chown "$USERNAME:$USERNAME" "/home/$USERNAME/.ssh/" -R