diff -r d109af008343 -r 6212d849ab08 yubikey/admincp.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/yubikey/admincp.php	Fri Jun 30 17:49:12 2017 -0400
@@ -0,0 +1,107 @@
+<?php
+
+$plugins->attachHook('acp_general_users', 'yubikey_admin_cp_ui();');
+$plugins->attachHook('acp_general_save', 'yubikey_admin_cp_save();');
+
+function yubikey_admin_cp_ui()
+{
+	global $lang;
+	?>
+		<tr>
+			<th colspan="2" class="subhead">
+				<?php echo $lang->get('yubiacp_th'); ?>
+			</th>
+		</tr>
+		
+		<tr>
+			<td class="row1">
+				<?php echo $lang->get('yubiacp_field_enable_title'); ?>
+			</td>
+			<td class="row1">
+				<label>
+					<input type="checkbox" name="yubikey_enable" <?php if ( getConfig('yubikey_enable', '1') == '1' ) echo 'checked="checked" '; ?>/>
+					<?php echo $lang->get('yubiacp_field_enable'); ?>
+				</label>
+			</td>
+		</tr>
+		
+		<tr>
+			<td class="row2">
+				<?php echo $lang->get('yubiacp_field_api_key'); ?>
+			</td>
+			<td class="row2">
+				<input type="text" name="yubikey_api_key" value="<?php echo htmlspecialchars(getConfig('yubikey_api_key', '')); ?>" size="30" />
+			</td>
+		</tr>
+		
+		<tr>
+			<td class="row1">
+				<?php echo $lang->get('yubiacp_field_api_key_id'); ?>
+			</td>
+			<td class="row1">
+				<input type="text" name="yubikey_api_key_id" value="<?php echo strval(intval(getConfig('yubikey_api_key_id', ''))); ?>" size="5" />
+			</td>
+		</tr>
+		
+		<tr>
+			<td class="row2">
+				<?php echo $lang->get('yubiacp_field_auth_server'); ?>
+			</td>
+			<td class="row2">
+				<input type="text" name="yubikey_auth_server" value="<?php echo htmlspecialchars(getConfig('yubikey_auth_server', YK_DEFAULT_VERIFY_URL)); ?>" size="30" />
+				<?php
+				if ( defined('YMS_INSTALLED') )
+				{
+					echo '<br />';
+					echo $lang->get('yubiacp_field_use_local_pre');
+					?> <label><input type="checkbox" name="yubikey_use_local_yms" <?php echo getConfig('yubikey_use_local_yms', 0) ? 'checked="checked" ' : ''; ?>/><?php
+					echo $lang->get('yubiacp_field_use_local');
+					echo '</label>';
+				}
+				?>
+			</td>
+		</tr>
+		
+		<tr>
+			<td class="row1">
+				<?php echo $lang->get('yubiacp_field_enroll_limit'); ?>
+			</td>
+			<td class="row1">
+				<input type="text" name="yubikey_enroll_limit" value="<?php echo strval(intval(getConfig('yubikey_enroll_limit', '3'))); ?>" size="5" />
+			</td>
+		</tr>
+		
+		<tr>
+			<td class="row2">
+				<?php echo $lang->get('yubiacp_field_reg_require_otp_title'); ?><br />
+				<small><?php echo $lang->get('yubiacp_field_reg_require_otp_hint'); ?></small>
+			</td>
+			<td class="row2">
+				<label>
+					<input type="checkbox" name="yubikey_reg_require_otp" <?php if ( getConfig('yubikey_reg_require_otp', '0') == '1' ) echo 'checked="checked" '; ?>/>
+					<?php echo $lang->get('yubiacp_field_reg_require_otp'); ?>
+				</label>
+			</td>
+		</tr>
+		
+	<?php
+}
+
+function yubikey_admin_cp_save()
+{
+	global $lang;
+	
+	// yubikey_enable, yubikey_api_key, yubikey_api_key_id, yubikey_auth_server, yubikey_enroll_limit
+	setConfig('yubikey_enable', isset($_POST['yubikey_enable']) ? '1' : '0');
+	setConfig('yubikey_api_key', $_POST['yubikey_api_key']);
+	setConfig('yubikey_api_key_id', intval($_POST['yubikey_api_key_id']));
+	setConfig('yubikey_enroll_limit', intval($_POST['yubikey_enroll_limit']));
+	setConfig('yubikey_reg_require_otp', isset($_POST['yubikey_reg_require_otp']) ? '1' : '0');
+	setConfig('yubikey_use_local_yms', isset($_POST['yubikey_use_local_yms']) && defined('YMS_INSTALLED') ? '1' : '0');
+	
+	if ( preg_match('#^(?:https?://)?(\[?[a-z0-9-:]+(?:\.[a-z0-9-:]+\]?)*)(/.*)$#', $_POST['yubikey_auth_server']) )
+		setConfig('yubikey_auth_server', $_POST['yubikey_auth_server']);
+	else
+		echo '<div class="error-box">' . $lang->get('yubiacp_err_invalid_auth_server') . '</div>';
+}
+