/**
  * login page and post 
  */
 public function doIndex()
 {
     global $MONGO;
     $password = trim(xn("password"));
     $this->username = trim(xn("username"));
     $this->db = trim(xn("db"));
     $this->hostIndex = xi("host");
     $this->languages = rock_load_languages();
     $this->expires = array(3 => "3 " . rock_lang("hours"), 720 => "1 " . rock_lang("month"));
     $this->moreOptions = xi("more");
     if ($this->isPost()) {
         //server exists?
         if (!isset($MONGO["servers"][$this->hostIndex])) {
             $this->message = "Server does not exist";
             return;
         }
         //authenticate
         $server = MServer::serverWithIndex($this->hostIndex);
         if (!$server->auth($this->username, $password, $this->db)) {
             $this->message = rock_lang("can_not_auth");
             $this->display();
             return;
         }
         //remember user
         import("models.MUser");
         MUser::login($this->username, $password, $this->hostIndex, $this->db, xi("expire") * 3600);
         //remember lang
         setcookie("ROCK_LANG", x("lang"), time() + 365 * 86400);
         //jump to admin page
         $this->redirect("admin.index", array("host" => $this->hostIndex));
     } else {
         $this->display();
     }
 }

 /** called before any actions **/
 public function onBefore()
 {
     global $MONGO;
     //exception handler
     set_exception_handler(array($this, "exceptionHandler"));
     $this->_admin = MUser::userInSession();
     if (!$this->_admin) {
         //if user is loged in?
         $server = MServer::serverWithIndex(xi("host"));
         //filter server plugins
         if (class_exists("RFilter")) {
             RFilter::apply("SERVER_FILTER", $server);
         }
         //if auth is disabled
         if ($server && !$server->mongoAuth() && !$server->controlAuth()) {
             MUser::login("rockmongo_memo", "rockmongo_memo", xi("host"), "admin", 10800);
             $this->_admin = MUser::userInSession();
         } else {
             $this->redirect("login.index", array("host" => xi("host")));
         }
     }
     if (!$this->_admin->validate()) {
         $this->redirect("login.index", array("host" => $this->_admin->hostIndex()));
     }
     $this->_server = MServer::serverWithIndex($this->_admin->hostIndex());
     $this->_mongo = $this->_server->mongo();
     //log query
     if (isset($MONGO["features"]["log_query"]) && $MONGO["features"]["log_query"] == "on") {
         $this->_logQuery = true;
     }
     //render header
     if (!$this->isAjax()) {
         render_view("header");
     }
 }

 /** change current host **/
 public function doChangeHost()
 {
     $index = xi("index");
     MUser::userInSession()->changeHost($index);
     $this->redirect("admin.index");
 }

 /** create new collection **/
 public function doNewCollection()
 {
     $this->db = xn("db");
     $this->name = trim(xn("name"));
     $this->isCapped = xi("is_capped");
     $this->size = xi("size");
     $this->max = xi("max");
     if ($this->isPost()) {
         $db = $this->_mongo->selectDB($this->db);
         MCollection::createCollection($db, $this->name, array("capped" => $this->isCapped, "size" => $this->size, "max" => $this->max));
         $this->message = "New collection is created. <a href=\"?action=collection.index&db={$this->db}&collection={$this->name}\">[GO &raquo;]</a>";
         //add index
         if (!$this->isCapped) {
             $db->selectCollection($this->name)->ensureIndex(array("_id" => 1));
         }
     }
     $this->display();
 }

 /** collection properties **/
 public function doCollectionProps()
 {
     $this->db = xn("db");
     $this->collection = xn("collection");
     $ret = $this->_mongo->selectDB($this->db)->selectCollection("system.namespaces")->findOne(array("name" => $this->db . "." . $this->collection));
     $this->isCapped = 0;
     $this->size = 0;
     $this->max = 0;
     if (isset($ret["options"]["capped"])) {
         $this->isCapped = $ret["options"]["capped"];
     }
     if (isset($ret["options"]["size"])) {
         $this->size = $ret["options"]["size"];
     }
     if (isset($ret["options"]["max"])) {
         $this->max = $ret["options"]["max"];
     }
     if ($this->isPost()) {
         $this->isCapped = xi("is_capped");
         $this->size = xi("size");
         $this->max = xi("max");
         //rename current collection
         $bkCollection = $this->collection . "_rockmongo_bk_" . uniqid();
         $this->ret = $this->_mongo->selectDB($this->db)->execute('function (coll, newname, dropExists) { db.getCollection(coll).renameCollection(newname, dropExists);}', array($this->collection, $bkCollection, true));
         if (!$this->ret["ok"]) {
             $this->error = "There is something wrong:<font color=\"red\">{$this->ret['errmsg']}</font>, please refresh the page to try again.";
             $this->display();
             return;
         }
         //create new collection
         $db = $this->_mongo->selectDB($this->db);
         MCollection::createCollection($db, $this->collection, array("capped" => $this->isCapped, "size" => $this->size, "max" => $this->max));
         //copy data to new collection
         if (!$this->_copyCollection($db, $bkCollection, $this->collection, true)) {
             //try to recover
             $this->ret = $db->execute('function (coll, newname, dropExists) { db.getCollection(coll).renameCollection(newname, dropExists);}', array($bkCollection, $this->collection, true));
             $this->error = "There is something wrong:<font color=\"red\">{$ret['errmsg']}</font>, please refresh the page to try again.";
             $this->display();
             return;
         }
         //drop current collection
         $db->dropCollection($bkCollection);
     }
     $this->display();
 }

}
?>
			</span>
			<!-- end query fields and hints -->
			
			<label id="limitLabel" <?php 
if (x("command") != "findAll") {
    ?>
style="display:none"<?php 
}
?>
><?php 
hm("limit");
?>
:<input type="text" name="limit" size="5" value="<?php 
h(xi("limit"));
?>
"/> |</label>
			<span id="pageSetLabel" <?php 
if (x("command") != "findAll") {
    ?>
style="display:none"<?php 
}
?>
>
			<select name="pagesize" title="<?php 
hm("rows_per_page");
?>
">
			<?php 
foreach (array(10, 15, 20, 30, 50, 100, 200) as $pagesize) {

 /** create new collection **/
 public function doNewCollection()
 {
     $this->db = xn("db");
     $this->name = trim(xn("name"));
     $this->isCapped = xi("is_capped");
     $this->size = xi("size");
     $this->max = xi("max");
     if ($this->isPost()) {
         $db = $this->_mongo->selectDB($this->db);
         $db->createCollection($this->name, $this->isCapped, $this->size, $this->max);
         $this->message = "New collection is created.";
         //add index
         if (!$this->isCapped) {
             $db->selectCollection($this->name)->ensureIndex(array("_id" => 1));
         }
     }
     $this->display();
 }

function calculateOverlap($c1x, $c1y, $r1, $c2x, $c2y, $r2)
{
    $c1 = array("x" => $c1x, "y" => $c1y);
    $c2 = array("x" => $c2x, "y" => $c2y);
    $t1 = trans($c1, $c1);
    $t2 = trans($c2, $c1);
    $z1 = rot($t1, $c1, $c2);
    $z2 = rot($t2, $c1, $c2);
    $ksi = xi($z2["x"], $r1, $r2);
    $eta = yi($z2["x"], $r1, $r2);
    $d1 = $ksi;
    $d2 = $z2["x"] - $ksi;
    $A1 = 0;
    $A2 = 0;
    if ($z2["x"] > $r1 + $r2) {
        /* No overlap */
        //echo "No overlap</br>";
        $A1 = 0;
        $A2 = 0;
    } elseif ($z2["x"] + $r1 < $r2) {
        /* Circle 1 is inside circle 2 */
        //echo "C1 in C2</br>";
        $A1 = $r1 * $r1 * pi();
        $A2 = 0;
    } elseif ($z2["x"] + $r2 < $r1) {
        /* Circle 2 is inside circle 1 */
        //echo "C2 in C1</br>";
        $A1 = 0;
        $A2 = $r2 * $r2 * pi();
    } else {
        //echo "Crossing</br>";
        $A1 = Ai($r1, $d1);
        $A2 = Ai($r2, $d2);
    }
    return $A1 + $A2;
}

    /** kill one operation in processlist **/
    public function doKillOp()
    {
        $opid = xi("opid");
        $query = $this->_mongo->selectDB("admin")->execute('function (opid){
			return db.killOp(opid);
		}', array($opid));
        if ($query["ok"]) {
            $this->redirect("server.processlist");
        }
        $this->ret = $this->_highlight($query, "json");
        $this->display();
    }

if ($level == 2) {
    ?>
selected="selected"<?php 
}
?>
><?php 
echo hm("profiling_level3");
?>
</option>
</select><br/>
<div id="slowmsDiv" style="display:none">
	<?php 
echo hm("timecost");
?>
 &gt; <input type="text" name="slowms" size="7" value="<?php 
h(xi("slowms"));
?>
"/> ms
</div>
<input type="submit" value="<?php 
hm("save");
?>
"/>
</form>
</div>

<script language="javascript">
function changeLevel(select) {
	if (select.value == 1) {
		//$("#slowmsDiv").show();
	}